Automatic feeder and automatic feeding method

Abstract

The invention relates to the field of oil exploration, in particular to an automatic feeder which comprises a rotating plate and a driving assembly connected with the rotating plate, a plurality of feeding hoppers communicated with a stirrer are arranged on the rotating plate, and the driving assembly is suitable for driving the rotating plate to rotate. And the motor drives the feeding hoppers to rotate, so that the raw materials in the feeding hoppers fall into the stirrer in a spiral and interlaced manner. In addition, the invention further relates to an automatic feeding method. According to the automatic feeder and the automatic feeding method, different raw materials can spirally fall into the stirrer in an interlaced manner, so that the mixing uniformity of the different raw materials in the stirrer is improved, and the stability of a subsequent production process and the improvement of the product quality are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil exploration, in particular, to an automatic feeder. Further, the present application also relates to an automatic feeding method. BACKGROUND

[0002] In actual drilling operation, the lubricating performance of the drilling fluid plays an important role in preventing friction and wear between the drill bit and the well wall, reducing the torque and resistance of the drilling tool, improving the drilling speed and ensuring the safety of the downhole operation. Especially in complex well type and high risk well section drilling operation, the requirement for the lubricant performance of the drilling fluid is higher.

[0003] A good performance lubricant can effectively improve the drilling efficiency. At present, the preparation method of the domestic drilling fluid lubricant often depends on manual operation, which not only consumes time and effort, but also is difficult to ensure the accuracy of the feeding ratio, and the existing automatic feeder is used to add materials, and the materials are concentrated below the discharge pipe and enter the stirring barrel, so that a large amount of time is consumed for stirring to make the materials mixed uniformly when different materials are mixed. SUMMARY

[0004] The purpose of the present application is to provide an automatic feeder and an automatic feeding method, which can make different raw materials spiral interweave into the stirrer, which is beneficial to improve the mixing uniformity of different raw materials in the stirrer, thereby helping to improve the stability of the subsequent production process and the product quality.

[0005] In order to achieve the above purpose, the first aspect of the present application provides an automatic feeder, which comprises a rotating plate and a driving assembly connected with the rotating plate, a plurality of feeding hoppers in communication with the stirrer are arranged on the rotating plate, and the driving assembly is suitable for driving the rotating plate to rotate, so as to drive the feeding hoppers to rotate and make the raw materials in each feeding hopper spiral interweave into the stirrer.

[0006] Optionally, the driving assembly comprises a gear ring, a gear meshing with the outer periphery of the gear ring and a gear driving member for driving the gear to rotate, and the inner side of the gear ring is sleeved on the outer peripheral surface of the rotating plate.

[0007] Optionally, the feeding hopper comprises a storage bin, a conveying pipeline in communication with one end of the storage bin and an anti-blocking conveying assembly, the conveying pipeline is fixedly embedded on the rotating plate, and the anti-blocking conveying assembly is used to convey the raw materials in the storage bin to the discharge port of the conveying pipeline.

[0008] Optionally, the anti-blocking conveying assembly comprises a conveying drive, a rotating rod located inside the feeding hopper, and a spiral auger, one end of the rotating rod is connected with the output end of the conveying drive, and the other end of the rotating rod extends to the discharging opening of the conveying pipeline, and the spiral auger is sleeved on the surface of the rotating rod located in the conveying pipeline.

[0009] Optionally, the automatic feeder further comprises a knocking assembly capable of knocking each feeding hopper.

[0010] Optionally, the knocking assembly comprises a knocking drive, a connecting rod, and a knocking rod, at least one end of the connecting rod is provided with a fixing cavity, one end of the knocking rod is connected with the inner wall of the fixing cavity through a spring, and the other end of the knocking rod is adapted to abut against the outer wall of the feeding hopper, and the knocking drive is capable of driving the connecting rod to rotate so as to drive the knocking rod to knock the feeding hopper.

[0011] Optionally, the knocking assembly further comprises a knocking limiting unit, the knocking limiting unit comprises a limiting groove and a limiting block, the limiting groove is located in the fixing cavity, the limiting block is connected with the end of the knocking rod, and the limiting block and the limiting groove are slidably connected.

[0012] Optionally, the automatic feeder further comprises a lifting assembly capable of driving the rotating plate and each feeding hopper to perform lifting movement.

[0013] Optionally, the lifting assembly comprises a lifting plate located at the bottom of the rotating plate and a lifting unit, the lifting plate is rotationally connected with the rotating plate, one end of the lifting unit is connected with the stirrer, and the other end of the lifting unit is connected with the bottom of the lifting plate.

[0014] Optionally, the lifting unit includes a lifting drive component and a housing. The lifting drive component is located at the first end of the housing. Inside the housing, from bottom to top, are arranged a rotating column, a guide rod, and a fixed seat. One end of the rotating column is connected to the output shaft of the lifting drive component, and the other end is rotatably connected to the second end of the housing. A roller is sleeved on the rotating column, and a groove is formed on the roller. The groove is spiral-shaped and connected end-to-end. The two ends of the guide rod are respectively connected to the first end and the second end, and a sliding plate is sleeved on the guide rod. A slider is provided at the bottom of the sliding plate, and the slider is slidably connected to the groove. This allows the slider to slide within the groove by driving the roller to rotate, thereby causing the sliding plate to slide along the length of the guide rod. The sliding plate is hinged to one end of the fixed seat via a connecting rod, and the other end of the fixed seat is connected to the lifting plate. This allows the lifting plate to move up and down by sliding the sliding plate left and right along the length of the guide rod. The first end and the second end are the two ends of the housing along its length.

[0015] Optionally, the lifting assembly further includes a plurality of lifting limit units located within the housing, one end of which is connected to the lifting plate and the other end of which is connected to the housing.

[0016] Optionally, the lifting and limiting unit includes a telescopic cylinder and a telescopic rod. The bottom of the telescopic cylinder is adapted to be connected to the housing. A connecting groove is provided inside the telescopic cylinder. One end of the telescopic rod is connected to the lifting plate, and the other end is adapted to be inserted into the telescopic cylinder. A connecting block is sleeved on the end of the telescopic rod located inside the telescopic cylinder. The connecting block is adapted to cooperate with the connecting groove to limit the displacement of the telescopic rod inside the telescopic cylinder.

[0017] A second aspect of the present invention provides an automatic feeding method, the method comprising the following steps: conveying different raw materials into different feeding hoppers; driving each feeding hopper to rotate around the central axis of a stirrer, so that each raw material falls into the stirrer in a spirally interwoven manner.

[0018] Optionally, the step of conveying different raw materials into different feeding hoppers includes: obtaining the amount of raw materials in the feeding hopper, determining the difference between the amount of raw materials and the required amount, and obtaining the amount to be added based on the difference; determining whether the amount to be added is less than the capacity of the feeding hopper, and if so, completing the replenishment in one go; if not, obtaining the difference between the amount to be added and the capacity of the feeding hopper, and completing the replenishment based on the difference.

[0019] Optionally, the automatic feeding method further includes: determining the blockage status of each of the raw materials in the feeding hopper and implementing anti-blockage measures based on the determination result; or tapping the feeding hopper and driving the feeding hopper to vibrate up and down to prevent the raw materials in the feeding hopper from becoming blocked.

[0020] Optionally, the step of determining the blockage status of each of the raw materials in the feeding hopper and implementing anti-blockage measures based on the determination result includes: obtaining the weight change N1 of the raw material in the feeding hopper within a time period T; determining whether the weight change N1 is less than a first preset threshold; if so, activating the tapping component to tap and clear the blockage in the feeding hopper; if not, turning off the tapping component; after a time period T1, obtaining the weight change N2 of the raw material in the feeding hopper; determining whether the weight change N2 is less than a second preset threshold; if so, activating the lifting component to lift and lower the feeding hopper at a variable speed to clear the blockage; if not, turning off the lifting component.

[0021] Through the above technical solution, the automatic feeder provided by the present invention fixes multiple feeding hoppers on a rotating plate, and the feeding hoppers are connected to the inner cavity of the agitator. Different raw materials can continuously fall into the agitator from their respective feeding hoppers. As the drive assembly drives the rotating plate to rotate, the feeding hoppers rotate around the rotation center of the rotating plate. Different raw materials continuously enter the inner cavity of the agitator in an intertwined manner, so that the different raw materials are evenly distributed in each area of ​​the agitator. This avoids the problem of raw material stratification or uneven mixing that may occur in traditional feeding methods, and helps to reduce the phenomenon of repeated mixing or rework caused by uneven mixing.

[0022] Other advantages of the present invention and the technical effects of preferred embodiments will be further described in the following detailed description. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of a specific embodiment of the automatic feeder of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of a specific embodiment of the lifting component in this invention;

[0026] Figure 3 yes Figure 2 Enlarged diagram of section A in the middle;

[0027] Figure 4 This is a schematic diagram of a specific embodiment of the guide rod in this invention;

[0028] Figure 5 This is a schematic diagram of a specific embodiment of the lifting and limiting unit in this invention;

[0029] Figure 6 yes Figure 5 Enlarged diagram of section B in the middle;

[0030] Figure 7 This is a cross-sectional structural diagram of a specific embodiment of the automatic feeder of the present invention;

[0031] Figure 8 yes Figure 7 Enlarged schematic diagram of section C.

[0032] Explanation of reference numerals in the attached figures

[0033] 1-Agitator; 2-Machine casing; 3-Lifting plate; 4-Rotating plate; 5-Feeding hopper; 6-Lifting drive component; 7-Rotating column; 8-Drum; 9-Slide groove; 10-Slider; 11-Guide rod; 12-Slide plate; 13-Fixed seat; 14-Connecting rod; 15-Telescopic cylinder; 16-Telescopic rod; 17-Connecting groove; 18-Connecting block; 19-Gear ring; 20-Gear drive component; 21-Gear; 22-Impact drive component; 23-Connecting rod; 24-Fixed cavity; 25-Impact rod; 26-Limiting groove; 27-Limiting block; 28-Spring; 29-Sealing cover; 30-Conveying drive component; 31-Rotating rod; 32-Screw auger; 33-Storage bin; 34-Conveying pipe. Detailed Implementation

[0034] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to abutment; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0037] In one basic embodiment of the present invention, see [link to original text].Figure 1 The automatic feeder includes a rotating plate 4 and a drive assembly connected to the rotating plate 4. The rotating plate 4 has multiple feeding hoppers 5 connected to the agitator 1. The drive assembly is adapted to drive the rotating plate 4 to rotate, enabling each feeding hopper 5 to rotate around the rotation center of the rotating plate 4. When the raw material leaves the outlet of the feeding hopper 5, it has a linear velocity in the same direction as the rotation of the rotating plate 4. The raw material maintains its linear velocity when leaving the feeding hopper 5 and continues to move along the tangential direction of the rotating plate 4, while simultaneously falling under the influence of gravity. This causes the raw material to fall into the agitator 1 in a projectile-like motion path. The raw material continuously falls into the agitator 1 as the rotating plate 4 rotates, so that after one rotation of the rotating plate 4, a ring of raw material is formed inside the agitator 1. Based on the above principle, assuming that the mass of each raw material is the same, each feeding hopper 5, as it rotates with the rotating plate 4, will form a ring of raw material inside the agitator 1 interwoven with different raw materials. By adjusting the rotation speed of the rotating plate 4, the raw materials can be more evenly distributed across the entire bottom surface of the agitator 1. If the quality of each raw material is different, during the rotation of the rotating plate 4, the raw materials in each feeding hopper 5 can fall into the agitator 1 in a spiral and intertwine, forming multiple rings composed of different raw materials in the agitator 1. By adjusting the rotation speed of the rotating plate 4, other raw material rings can be superimposed and intertwined in the raw material ring area, so that different kinds of raw materials are more evenly distributed in the agitator 1.

[0038] The aforementioned drive assembly can be connected to the rotating plate 4 using a conventional drive device in the art to achieve the rotation of the rotating plate 4. Alternatively, the drive assembly can be connected to a control system to control the working state of the rotating plate 4 and adjust the rotation speed of the rotating plate 4, so as to meet the needs of automated or intelligent feeding.

[0039] In this invention, the size of the feeding hopper 5, which allows raw materials to enter the agitator 1, can be designed according to the particle size of each raw material to prevent blockage within the feeding hopper 5. The feeding hopper 5 can be configured with two, or three or more hoppers. Users can add or reduce the number of feeding hoppers 5 according to actual usage needs. To better illustrate the interaction between the feeding hopper 5, the rotating plate 4, and the drive assembly, the following detailed explanation will be based on the scenario of two feeding hoppers 5.

[0040] The automatic feeder provided in the basic embodiment of this invention operates as follows: two different raw materials are fed into two feeding hoppers 5 respectively. A drive assembly drives a rotating plate 4 to rotate, causing the two different raw materials to spirally intertwine and fall into the mixer 1. This feeding process ensures a more uniform distribution of the raw materials within the mixer, effectively avoiding the problems of existing automatic feeders where raw materials are concentrated below the discharge pipe, leading to potential stratification or uneven mixing and requiring repeated stirring or rework. This improves the stability of subsequent production processes and product quality, while also helping to reduce energy consumption and production costs.

[0041] In a preferred embodiment of the drive assembly, the drive assembly includes a gear ring 19, a gear 21 meshing with the outer circumference of the gear ring 19, and a gear drive component 20 for driving the gear 21 to rotate. The rotating plate 4 is formed as a disc structure. The inner side of the gear ring 19 is fixedly sleeved on the outer circumferential surface of the rotating plate 4. The gear 21 can be sleeved on the output shaft of the gear drive component 20 so that the gear 21 can be driven to rotate by the gear drive component 20, thereby driving the gear ring 19 to rotate. The gear drive component 20 can be connected to a control system so that the start and stop of the gear drive component 20 and the rotation speed of the output shaft of the gear drive component 20 can be remotely controlled by the control system. This allows for remote control of the working state and working speed of the rotating plate 4. Furthermore, the control system can control the rotating plate 4 to work at multiple different speeds within a time cycle and repeat cyclically to meet different feeding requirements. In the above embodiments, the gear drive component 20 can be an electric motor such as a stepper motor or a servo motor, or a hydraulic motor or a pneumatic motor. In addition to the structure of the drive assembly in the preferred embodiments described above, in some embodiments, the drive assembly may only include a drive motor. The output shaft of the drive motor is connected to the input shaft of the rotating plate 4 via a coupling, or the rotating plate 4 is fixedly sleeved on the output shaft of the drive motor so that the output shaft of the drive motor directly drives the rotating plate 4 to rotate. The drive assembly may also include a drive motor, a belt, and a pulley. The drive motor is connected to the belt via the pulley, and a pulley is connected to the input shaft of the rotating plate 4. When the drive motor rotates, it can drive the pulley connected to the rotating plate 4 to rotate via the belt, thereby driving the rotating plate 4 to rotate.

[0042] In some embodiments, the feeding hopper 5 includes a storage bin 33 and a conveying pipe 34 communicating with the storage bin 33. The upper part of the storage bin 33 is formed into a cylindrical pipe structure, and the lower part is formed into a frustum-shaped pipe structure. The smaller diameter end of the frustum-shaped pipe is connected to one end of the conveying pipe 34. The conveying pipe 34 is fixedly embedded in the rotating plate 4, and an anti-blocking conveying component is provided inside the conveying pipe 34 to convey the raw material in the storage bin 33 to the outlet of the conveying pipe 34. A feed pipe can be provided on the outer side wall near the top of the storage bin 33, and the feed pipe is communicating with the storage bin 33. The raw material can be conveyed from the feed pipe to the storage bin 33 by a raw material conveying device. The anti-blocking conveying component can guide the raw material to be continuously conveyed from the outlet of the conveying pipe 34 to the agitator 1. The size of the space available for raw materials to pass through in the conveying pipes 34 of each feeding hopper 5 can be designed according to the particle size of each raw material required for production and the size of the anti-clogging conveying components, so as to avoid blockage of the raw materials in the anti-clogging conveying components and affect the normal operation of the automatic feeder. The conveying speed of the anti-clogging conveying components can be adjusted according to the required mixing ratio of each raw material. For example, if the mixing ratio of the first raw material to the second raw material is 1:2, the conveying speed of the anti-clogging conveying components conveying the second raw material can be adjusted to twice the conveying speed of the anti-clogging conveying components conveying the first raw material. It should be noted that the above example is implemented under the condition that the particle size and mass of the first and second raw materials are exactly the same, and the structural dimensions of each feeding hopper 5 and the anti-clogging conveying components conveying the two raw materials are exactly the same. In actual use, users can adjust the conveying speed of the anti-clogging conveying components according to the actual raw material conditions and the structural dimensions of each feeding hopper 5 and the anti-clogging conveying components to meet the mixing ratio of each raw material required for production. A sealing cap 29 can be installed at the outlet of the conveying pipe 34 to open or close the outlet. This allows the conveying pipe 34 to be blocked by the sealing cap 29 when the raw material is conveyed to the storage silo 33, preventing the raw material in the feeding hopper 5 from falling into the mixer 1 along the anti-blocking conveying component. After the storage silo 33 is filled, the raw material conveying device is removed, and the feed port on the storage silo 33 is closed. With the automatic feeder ready to work, the sealing cap 29 can be opened to connect the conveying pipe 34 to the inner cavity of the mixer 1. The rotating plate 4 and the anti-blocking conveying component are then activated in sequence. This allows the raw material in the storage silo 33 to continuously fall from the outlet of the conveying pipe 34 into the mixer 1 under the conveying of the anti-blocking conveying component. Under the action of the rotating plate 4, the raw materials fall into the mixer 1 in a spiral and interwoven manner, achieving a relatively uniform distribution of the raw materials within the mixer 1.

[0043] In some embodiments, the anti-clogging conveying assembly provided in the feeding hopper 5 includes a conveying drive 30, a rotating rod 31, and a spiral auger 32. The feeding hopper 5 includes a storage bin 33 and a conveying pipe 34. The conveying drive 30 can be disposed above the sealing cover at the top of the storage bin 33. The output shaft of the conveying drive 30 is adapted to extend through the sealing cover into the inner cavity of the feeding hopper 5 and is connected to one end of the rotating rod 31 via a coupling. The other end of the rotating rod 31 extends to or near the outlet of the conveying pipe 34. The spiral auger 32 is fixedly sleeved on the outer wall of the rotating rod 31 located within the conveying pipe 34, so that the conveying drive 30 can drive the rotating rod 31 and the spiral auger 32 fixedly sleeved on the rotating rod 31 to rotate. Under the action of the spiral auger 32, the raw material in the storage bin 33 can be spirally conveyed to the outlet of the conveying pipe 34. The conveying drive 30 in the above embodiments can be an electric motor such as a stepper motor or a servo motor, or one of a hydraulic motor or a pneumatic motor. Based on the above embodiments, the use of a spiral auger 32 to transport raw materials in the conveying pipeline 34 enables the raw materials to flow continuously during transport, effectively reducing blockages during the transport process, improving the stability and efficiency of the transport, and also allowing the spiral auger 32 to be adjusted to adapt to different raw materials and transport requirements by adjusting its rotation speed.

[0044] In some embodiments, the automatic feeder of the present invention is further provided with a striking component capable of striking each feeding hopper 5. The output structure of the striking component can be designed as a fixed structure, so that the feeding hopper 5, which rotates with the rotating plate 4, collides with the striking component. Alternatively, the output structure of the striking component can be designed as a rotating structure, with the rotation speed of the striking component being higher or lower than the rotation speed of the feeding hopper 5, or the rotation direction of the striking component being opposite to the rotation direction of the feeding hopper 5, thereby enabling the striking component to actively strike the feeding hopper 5. By striking the feeding hopper 5 with the striking component, the tube wall of the feeding hopper 5 is physically vibrated. These vibrations can be transmitted to the raw material inside the feeding hopper 5, causing relative movement between the raw material particles, thereby breaking up blockages formed by the raw material due to adhesion, agglomeration, or accumulation. Continuous striking of the feeding hopper 5 by the striking component can prevent the raw material from accumulating and agglomerating in the feeding hopper 5 due to prolonged residence, thereby reducing the occurrence of blockages.

[0045] As a preferred embodiment of the tapping component, refer to Figures 7 to 8The striking assembly includes a striking drive 22, a connecting rod 23, and a striking rod 25. The striking drive 22 can be disposed at the bottom of the rotating plate 4. The output shaft of the striking drive 22 extends through to the top of the rotating plate 4 and is fixedly inserted into the middle of the connecting rod 23. At least one end of the connecting rod 23 is provided with a fixing cavity 24. One end of the striking rod 25 is connected to the inner wall of the fixing cavity 24 through a spring 28, and the other end can abut against the outer wall of the feeding hopper 5. When the striking rod 25 abuts against the outer wall of the feeding hopper 5, the spring 28 is in a compressed state. After the striking rod 25 passes the feeding hopper 5, it can be reset under the action of the spring force of the spring 28, so that the striking rod 25 can strike the feeding hopper 5 again when it reaches the vicinity of the feeding hopper 5. The end of the striking rod 25 that abuts against the feeding hopper 5 is arc-shaped, and this arc protrudes towards the feeding hopper 5. Alternatively, the end of the striking rod 25 that abuts against the feeding hopper 5 is spherical. The arc-shaped or spherical section of the striking rod 25 can be made of flexible materials, such as rubber or thermoplastic materials, thereby preventing deformation or damage to the feeding hopper 5 when the striking rod 25 strikes it. The number of striking rods 25 can be one or more. For example, two striking rods 25 are provided. The connecting rod 23 is a long rod structure with two ends, and both ends of the connecting rod 23 are provided with fixing cavities 24. The two striking rods 25 can be slidably inserted into the fixing cavities 24 by springs 28. The striking drive 22 in the above embodiment can be an electric motor such as a stepper motor or a servo motor, or a hydraulic motor or a pneumatic motor. The striking drive 22 can be electrically connected to the control system to remotely control the output power of the striking drive 22 and adjust the striking force of the striking assembly on the feeding hopper 5 according to actual usage requirements. For example, the rotation direction of the connecting rod 23 and the striking rod 25 can be adjusted to be the same as the rotation direction of the rotating plate 4, and the rotation speed can be slightly higher or slightly lower than the rotation speed of the rotating plate 4, so as to achieve a gentle striking on the feeding hopper 5. The rotation speed of the connecting rod 23 and the striking rod 25 can be adjusted to be higher than the rotation speed of the rotating plate 4, or the rotation direction of the connecting rod 23 and the striking rod 25 can be adjusted to be opposite to the rotation direction of the rotating plate 4, so as to achieve a stronger striking on the feeding hopper 5. As the rotation speed of the connecting rod 23 and the striking rod 25 increases, the striking force on the feeding hopper 5 can be increased.

[0046] In some embodiments, reference Figure 8The striking assembly also includes a striking limiting unit, which is disposed within the fixed cavity 24 of the striking assembly to limit the displacement of the striking rod 25 within the fixed cavity 24. The striking limiting unit includes a limiting groove 26 and a limiting block 27. The limiting groove 26 is disposed within the cavity 24 away from the central axis of the connecting rod 23, and a spring 28 is disposed within the cavity 24 near the central axis of the connecting rod 23. The limiting block 27 is fixed to the outer circumferential surface of the striking rod 25 near its end, and the limiting block 27 is adapted to cooperate with the limiting groove 26. For example, the limiting groove 26 can be a dovetail groove, and the limiting block 27 can be a dovetail block. The limiting block 27 is restricted by the limiting groove 26 and can only slide within the range of the limiting groove 26. Under the interaction of the limiting groove 26 and the limiting block 27, one end of the striking rod 25 can always be inserted into the fixed cavity 24, avoiding accidents such as the striking rod 25 falling off during operation, which helps to improve the working stability of the striking component.

[0047] In some embodiments, the automatic feeder of the present invention further includes a lifting assembly capable of driving the rotating plate 4 and each feeding hopper 5 fixed on the rotating plate 4 to move up and down. (See reference) Figure 1 and Figure 7 The lifting assembly includes a lifting plate 3 and lifting units. A rotating plate 4 is rotatably connected to the middle of the lifting plate 3 via bearings. The lifting plate 3 supports the drive assembly that drives the rotating plate 4 to rotate. A single lifting unit can be arranged between the lifting plate 3 and the agitator 1. One end of the lifting unit is connected to the agitator 1, and the other end is connected to the bottom of the lifting plate 3, thereby enabling the lifting plate 3 to move away from or towards the agitator 1. Alternatively, multiple lifting units can be arranged symmetrically or asymmetrically between the lifting plate 3 and the agitator 1. The lifting units in the above embodiments can employ existing technologies such as worm gear lifting structures, electric push rod lifting structures, hydraulic system lifting structures, and scissor lifting structures. The lifting units can also be electrically connected to a control system to remotely drive the lifting units so that the lifting plate 3 moves at a uniform speed or a variable speed in the vertical direction.

[0048] As a preferred embodiment of the lifting unit, refer to Figures 2 to 4The lifting unit includes a lifting drive component 6 and a housing 2. The housing 2 is a frame-shaped box structure with an opening at the top. The lifting drive component 6 is located at the first end of the housing 2, which is one end of the housing 2 along its length. The output shaft of the lifting drive component 6 passes through the inner cavity of the housing 2. Inside the housing 2, from bottom to top, a rotating column 7, a guide rod 11, and a fixed seat 13 are arranged sequentially. One end of the rotating column 7 is connected to the output shaft of the lifting drive component 6, and the other end extends along the length of the housing 2 and is rotatably connected to the second end of the housing 2 via a coupling. The second end is the end opposite to the first end. A roller 8 is fixedly sleeved on the rotating column 7. The roller 8 has a groove 9, which extends in both the axial and circumferential directions to form a spiral shape. The beginning and end of the groove 9 are connected to form a continuous and uninterrupted track on the roller 8. The guide rod 11 is located at the middle of the height direction inside the housing 2, and its two ends are fixedly connected to the first end and the second end, respectively. A slide plate 12 is sleeved on the guide rod 11, and the slide plate 12 is slidably connected to the guide rod 11. A slider 10 is fixedly connected to the bottom of the slide plate 12, and the slider 10 can be slidably connected to the slide groove 9. When the roller 8 is driven to rotate by the lifting drive component 6, due to the structural characteristics of the slide groove 9, the slider 10 can move along the axial direction of the roller 8 under the guidance of the slide groove 9, thereby driving the slide plate 12 to move on the guide rod 11. The top of the slide plate 12 is connected to the connecting rod 14 through a hinge, and the connecting rod 14 is connected to the bottom of the fixed seat 13 through a hinge. The upper end face of the fixed seat 13 is connected to the lifting plate 3, so the lifting plate 3 can be moved up and down by the left and right sliding of the slide plate 12 on the guide rod 11. To improve the stability of the lifting unit's operation, for example, a roller 8 can be fixedly sleeved on the rotating column 7, and the roller 8 is symmetrically provided with two helical grooves 9 with opposite directions. Alternatively, two rollers 8 can be fixedly sleeved on the rotating column 7, symmetrically arranged on the rotating column 7, and the helical directions of the grooves 9 on the two rollers 8 are opposite. The guide rod 11 is provided with two sliding plates 12, and each slider 10 fixedly connected to each sliding plate 12 is slidably connected to the two grooves 9 on the roller 8, so that the two sliders 10 can be driven to move relative to each other by rotating the roller 8. Two connecting rods 14 can be provided, each connected to one of the two sliding plates 12, so that the relative movement of the two sliders 10 can drive the two connecting rods 14 to push the fixed seat 13 up and down. Further, two guide rods 11 are provided, and the two guide rods 11 are located or approximately located on the same horizontal plane. The sliding plates 12 are inserted into the two guide rods 11, so that the sliding plates 12 can slide stably on the guide rods 11. The lifting drive 6 in the above embodiments can be an electric motor such as a stepper motor or a servo motor, or a hydraulic motor or a pneumatic motor.The lifting drive unit 6 can be electrically connected to the control system to remotely control the output power of the lifting drive unit 6, thereby controlling the speed of the lifting plate 3 moving up and down. Specifically, the lifting plate 3 can be controlled to rise and fall with the same acceleration in each time cycle, causing the feeding hopper 5 to vibrate vertically. This disrupts the static friction balance between the raw material particles, causing the raw material in the feeding hopper 5 to undergo periodic displacement. This displacement causes collisions and friction between the raw material particles, which helps to promote the dispersion and flow of the raw material particles and effectively alleviates the blockage of the raw material in the feeding hopper 5.

[0049] In some embodiments, the lifting assembly further includes a plurality of lifting limit units located within the housing 2. These lifting limit units may be arranged symmetrically or asymmetrically within the housing 2, with one end connected to the lifting plate 3 and the other end connected to the housing 2, to assist the lifting plate 3 in performing smooth lifting and lowering movements. For example, four lifting limit units may be provided and located at the four corners within the housing 2.

[0050] As a preferred embodiment of the lifting and limiting unit, refer to Figure 5 and Figure 6 The lifting and limiting unit includes a telescopic cylinder 15 and a telescopic rod 16 slidably connected to the telescopic cylinder 15. The bottom of the telescopic cylinder 15 is fixedly connected to the bottom of the housing 2, and a connecting groove 17 is provided inside the telescopic cylinder 15. One end of the telescopic rod 16 is inserted into the telescopic cylinder 15, and a connecting block 18 is fixedly connected to this end. The connecting block 18 is engaged with the connecting groove 17 inside the telescopic cylinder 15 to restrict the telescopic rod 16 to move only within the telescopic cylinder 15, preventing the telescopic rod 16 from detaching from the telescopic cylinder 15 during the movement of the lifting plate 3. For example, both the connecting groove 17 and the connecting block 18 can be formed into a "T"-shaped structure. By setting the lifting and limiting unit inside the housing 2, the consistency of the lifting and lowering actions of each area of ​​the lifting plate 3 can be effectively improved. In addition, as another embodiment of the lifting and limiting unit, the lifting and limiting unit can be set as an electric telescopic rod, whose movement speed is synchronized with the movement speed of the lifting unit driving the lifting plate 3.

[0051] A second aspect of the present invention also provides an automatic feeding method, the method comprising the following steps: conveying different raw materials into different feeding hoppers 5; driving each feeding hopper 5 to rotate around the central axis of the agitator 1, so that the raw materials fall into the agitator 1 in a spiral and interwoven manner.

[0052] The automatic feeding method described in this invention can be implemented using any feeding device or feeder capable of performing the method process, preferably using the automatic feeder provided above in this invention.

[0053] In the above method, raw materials can be directly added to the feeding hopper 5, or they can be fed into the feeding hopper 5 using a raw material conveying device. The raw material conveying device can be a commonly used material conveying device in the prior art, such as an air conveying device. The discharge end of the air conveying device is connected to the feeding hopper 5 through a pipe. A blower generates airflow to draw the raw materials into the pipe and convey them into the feeding hopper 5. Each feeding hopper 5 is positioned above the agitator 1 and is connected to the agitator 1 via a drive device, which drives each feeding hopper 5 to rotate around the central axis of the agitator 1. The raw materials from the outlet of each feeding hopper 5 are subjected to the combined effects of circular motion and gravity, and the raw materials fall into the agitator 1 in a spiral, interwoven manner. This spiral, interwoven material falling method helps different raw materials to contact and mix more fully within the agitator 1, preventing excessive accumulation of individual raw materials in a certain area of ​​the agitator, reducing the time required for subsequent mixing, and contributing to improved production efficiency and product quality.

[0054] In the automatic feeding method of the above-described basic implementation, different raw materials are fed into different feeding hoppers 5, which may include the following steps: obtaining the amount of raw material in the feeding hopper 5, determining the difference between the amount of raw material and the required amount, and obtaining the amount to be added based on the difference; determining whether the amount to be added is less than the capacity of the feeding hopper 5, and if so, completing the feeding in one go; if not, obtaining the difference between the amount to be added and the capacity of the feeding hopper 5, and completing the feeding based on the difference. Specifically, a weighing sensor can be installed in the feeding hopper 5 to weigh the raw material in the feeding hopper 5, thereby obtaining the weight of the raw material in the feeding hopper 5, and calculating the required amount to be added by comparing the weight of the raw material in the feeding hopper 5 with the actual weight of the raw material required for processing. When replenishing the feeding hopper 5, the required amount to be added can be determined by comparing it with the remaining capacity of the feeding hopper 5. For example, if the required amount to be added is less than or equal to the remaining capacity of the feeding hopper 5, the raw material can be added to the feeding hopper 5 all at once. If the required amount to be added is greater than the remaining capacity of the feeding hopper 5, the difference between the required amount to be added and the remaining capacity of the feeding hopper 5 can be obtained. Based on the magnitude of the difference, the remaining replenishment times and replenishment amounts can be determined, and replenishment can be completed in batches. The batch replenishment process can be performed once each time the amount of raw material in the feeding hopper 5 reaches a minimum preset value. Furthermore, the raw material conveying rate can be controlled based on the difference to continuously replenish the feeding hopper 5. In other embodiments, a level sensor can be installed in the feeding hopper 5 to detect the raw material level. When the raw material level does not meet the required amount, the feeding hopper 5 can be replenished.

[0055] The automatic feeding method of the present invention further includes determining the blockage status of each raw material in the feeding hopper 5 and implementing anti-blocking measures based on the determination result; or tapping the feeding hopper 5 and driving the feeding hopper 5 to vibrate up and down to prevent the raw materials in the feeding hopper 5 from becoming blocked. Specifically, the method of determining the blockage status of each raw material in the feeding hopper 5 and implementing anti-blocking measures based on the determination result includes the following steps: the weight change N1 of the raw material in the feeding hopper 5 within each time period T can be obtained by setting a weighing sensor in the feeding hopper 5; it is determined whether the weight change N1 is less than a first preset threshold. If so, the tapping component can be activated to tap the feeding hopper 5 to clear the blockage. If not, the tapping component is turned off; when the tapping component is turned on, the weight change N2 of the raw material in the feeding hopper 5 is obtained every time period T1; it is determined whether the weight change N2 is less than a second preset threshold. If so, the lifting component is activated to lift the feeding hopper 5 at a variable speed to clear the blockage. If not, the lifting component is turned off, and the weight change N1 of the raw material in the feeding hopper 5 is obtained every time period T. Furthermore, the cyclic judgment process can be reduced. The above steps involve acquiring the weight change N1 of the raw material in the feeding hopper 5 every time period T, and determining whether this weight change N1 is less than a first preset threshold. If so, the striking component and the lifting component can be activated simultaneously to clear the blockage in the feeding hopper 5. As another preferred implementation, while driving the feeding hopper 5 to rotate around the central axis of the agitator 1, the striking component and the lifting component can be simultaneously driven to strike and vibrate the feeding hopper 5, reducing the risk of blockage in the feeding hopper 5. The first preset threshold can be obtained by testing the feeding hopper 5 with multiple raw materials, using only the feeding hopper 5 to deliver the weight change N1 of the raw material in the feeding hopper 5 within one time period T under blockage conditions. The second preset threshold can be obtained by testing the feeding hopper 5 and the striking component with multiple raw materials, using the feeding hopper 5 and the striking component to deliver the weight change N2 of the raw material in the feeding hopper 5 within one time period T1 under blockage conditions.

[0056] The following will provide relatively preferred embodiments of the automatic feeder and automatic feeding method of the present invention.

[0057] As a first relatively preferred embodiment, the automatic feeder includes a rotating plate 4, a driving component connected to the rotating plate 4, a striking component, and a lifting component. The rotating plate 4 is provided with a plurality of feeding hoppers 5 that are connected to the agitator 1. The striking component is used to strike each feeding hopper 5 on the rotating plate 4. The lifting component includes a lifting plate 3 and a lifting unit. The lifting plate 3 is rotatably connected to the rotating plate 4. One end of the lifting unit is connected to the agitator 1, and the other end is connected to the lifting plate 3. The lifting unit drives the feeding hoppers 5 to move up and down.

[0058] Based on the first relatively preferred automatic feeder, the automatic feeding process of the automatic feeder is as follows: the raw material is conveyed into the feeding hopper 5 by the raw material conveying device, the drive component is activated to make the rotating plate 4 rotate, thereby driving the feeding hopper 5 fixedly connected to the rotating plate 4 to rotate. The raw material in each feeding hopper 5 falls into the agitator 1 in a spiral and interwoven manner from the discharge port of the feeding hopper 5. At the same time, the striking component and the lifting component are driven to strike each feeding hopper 5, and make the raw material in the feeding hopper 5 vibrate up and down, which can effectively prevent the raw material in the feeding hopper 5 from becoming blocked.

[0059] In a second, relatively preferred embodiment, the automatic feeder includes a rotating plate 4, a drive assembly, a striking assembly, and a lifting assembly connected to the rotating plate 4. The rotating plate 4 has multiple feeding hoppers 5 connected to the agitator 1. Each feeding hopper 5 includes a storage bin 33, a conveying pipe 34 connected to the storage bin 33, and an anti-blocking conveying assembly. The anti-blocking conveying assembly includes a conveying drive 30, a rotating rod 31, and a spiral auger 32. The feeding hopper 5 includes the storage bin 33 and the conveying pipe 34. The conveying drive 30 can be positioned above a sealing cap on the top of the storage bin 33. The output shaft of the conveying drive 30 is adapted to extend through the sealing cap into the inner cavity of the feeding hopper 5 and is connected to one end of the rotating rod 31 via a coupling. The other end of the rotating rod 31 extends to or near the outlet of the conveying pipe 34, and the spiral auger 32 is fixedly sleeved on the outer wall of the rotating rod 31 located within the conveying pipe 34. A sealing cap 29 for opening or closing the outlet is provided at the outlet of the conveying pipe 34. The drive assembly includes a gear ring 19, a gear 21 meshing with the outer circumference of the gear ring 19, and a gear drive 20 for driving the gear 21 to rotate. The inner side of the gear ring 19 is sleeved on the outer circumferential surface of the rotating plate 4. The striking assembly includes a striking drive 22, a connecting rod 23, and a striking rod 25. At least one end of the connecting rod 23 is provided with a fixed cavity 24. One end of the striking rod 25 is connected to the inner wall of the fixed cavity 24 through a spring 28, and the other end is adapted to abut against the outer wall of the feeding hopper 5. The end of the striking rod 25 that abuts against the feeding hopper 5 is arc-shaped, and the arc protrudes towards the feeding hopper 5. The striking assembly also includes a striking limiting unit, which comprises a limiting groove 26 and a limiting block 27. The limiting groove 26 is located within the fixed cavity 24, and the limiting block 27 is connected to the end of the striking rod 25 near the spring 28. The limiting block 27 and the limiting groove 26 are slidably connected to limit the displacement of the striking rod 25 within the fixed cavity 24. The lifting assembly includes a lifting plate 3 and multiple lifting units. The lifting plate 3 is rotatably connected to the rotating plate 4. The output shaft of the gear drive component 20 is connected to the lifting plate 3 via a coupling. The lifting unit includes a lifting drive component 6 and a housing 2. The lifting drive component 6 is located at the first end of the housing 2. The output shaft of the lifting drive component 6 extends through the inner cavity of the housing 2. From bottom to top, the housing 2 is provided with a rotating column 7, a guide rod 11, and a fixed seat 13. One end of the rotating column 7 is connected to the output shaft of the lifting drive component 6, and the other end extends along the length of the housing 2 and is rotatably connected to the second end of the housing 2 via a coupling. The second end is the end opposite to the first end. Two rollers 8 are fixedly sleeved on the rotating column 7. Each roller 8 has a groove 9. The grooves 9 are spiral and connected end to end. The spiral directions of the grooves 9 on the two rollers 8 are opposite to each other.The guide rod 11 is located at the middle of the height direction inside the housing 2, and its two ends are fixedly connected to the first end and the second end, respectively. Two sliding plates 12 are sleeved on the guide rod 11, and the sliding plates 12 are slidably connected to the guide rod 11. A slider 10 is fixedly connected to the bottom of each sliding plate 12, and each slider 10 can be slidably connected to the corresponding slide groove 9. The top of each sliding plate 12 is connected to the corresponding connecting rod 14 through a hinge, and each connecting rod 14 is connected to the bottom of the fixed base 13 through a hinge. The upper end face of the fixed base 13 is connected to the lifting plate 3.

[0060] Based on the second relatively preferred automatic feeder, the automatic feeding process is as follows: Different raw materials are conveyed to the corresponding feeding hopper 5 via conveying hoses using a pressure device. The sealing cover 29 is opened, and the conveying drive 30 is activated. The conveying drive 30 drives the rotating rod 31 and the auger 32 to rotate. Under the spiral conveying of the auger 32, the raw materials in the storage bin 33 are continuously conveyed to the outlet of the conveying pipe 34 and fall into the agitator 1. At this time, the gear drive 20 is activated, causing the gear drive 20 to drive the gear 21 to rotate. Due to the gear... Gear 21 meshes with gear ring 19, and gear 21 can drive gear ring 19 to rotate. In turn, gear ring 19 drives rotating plate 4 and feeding hopper 5 on rotating plate 4 to rotate. Then, the raw materials leaving from the discharge port of each conveying pipe 34 fall into the agitator 1 in a spiral interlacing manner under the circumferential motion of rotating plate 4 and gravity. This solves the problem that in the existing automatic feeder, when adding materials, the materials are all concentrated below the discharge pipe, which causes a lot of time to be spent stirring to make the materials evenly mixed. Simultaneously, the striking drive 22 and the lifting drive 6 are activated. The striking drive 22 drives the connecting rod 23 to rotate, which in turn drives the striking rod 25 to rotate. Since the striking rod 25 is elastically extendable, when the arc-shaped end of the striking rod 25 collides with the outer wall of the feeding hopper 5 during rotation, the striking rod 25 is squeezed by the feeding hopper 5 and retracts into the fixed cavity 24. The spring 28 is also compressed and undergoes elastic deformation. After passing the feeding hopper 5, the striking rod 25 returns to its original position under the elastic force of the spring 28, allowing it to strike the feeding hopper 5 again when it rotates to the vicinity of the feeding hopper 5. By continuously striking the feeding hopper 5, the static friction between the raw material particles in the feeding hopper 5 can be broken, keeping the raw material in an active state and thus maintaining its fluidity. The lifting drive unit 6 drives the rotating column 7 to rotate, which in turn rotates the two rollers 8. Due to the structural characteristics of the slide groove 9, the slider 10, guided by the slide groove 9, can move repeatedly along the axial direction of the roller 8. This causes the two sliding plates 12 to reciprocate relative to each other on the guide rod 11. The relative movement of the two sliding plates 12 drives the connecting rod 14 to push the fixed seat 13 to reciprocate up and down in a straight line under the limiting action of the telescopic rod 16 and the telescopic cylinder 15. This, in turn, causes the lifting plate 3, the rotating plate 4, and the feeding hopper 5 to reciprocate up and down. This causes the raw materials in the feeding hopper 5 to be subjected to constantly changing acceleration, which breaks the static friction between the raw materials and generates relative movement between them. This promotes the dispersion and flow of the raw materials and can effectively alleviate the blockage phenomenon in the feeding hopper 5. By applying knocking vibration and up and down vibration to the raw materials in the feeding hopper 5, it helps to reduce the dead corner area in the feeding hopper 5 and reduce the possibility of blockage in the dead corner area.

[0061] The automatic feeder provided by this invention utilizes a rotating plate 4 to allow the raw materials in each feeding hopper 5 to fall into the mixer 1 in a spiral and interwoven manner. This helps different raw materials to contact and mix more fully within the mixer 1, improving the mixing uniformity. It also effectively prevents a single raw material from accumulating excessively in a certain area of ​​the mixer 1, thus affecting subsequent mixing efficiency. The automatic feeder uses a striking component and a lifting component to apply striking and vertical vibrations to the raw materials in the feeding hopper 5, effectively promoting the relative movement of the raw materials within the feeding hopper 5 and reducing the possibility of blockage. Simultaneously, the automatic feeder can be connected to a control system to monitor and remotely control the feeding and replenishment process, effectively reducing labor costs and saving operating costs.

[0062] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0063] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. Furthermore, various different embodiments of the present invention can also be arbitrarily combined, as long as they do not violate the spirit of the present invention, and should also be regarded as the content disclosed by the present invention.

Claims

1. An automatic feeder characterized by, The utility model provides a kind of stirring device, including rotating plate (4) and the drive assembly connected with the rotating plate (4), the rotating plate (4) is equipped with multiple feeding hopper (5) being communicated with stirrer (1), the drive assembly is suitable for driving the rotating plate (4) rotation, to drive the feeding hopper (5) rotation so that raw material in each feeding hopper (5) spiral interweave falls into in the stirrer (1).

2. The automatic feeder of claim 1, wherein, The drive assembly includes a gear ring (19), a gear (21) engaged with the outer periphery of the gear ring (19), and a gear drive (20) for driving the gear (21) to rotate, the inner side of the gear ring (19) is sleeved on the outer peripheral surface of the rotating plate (4).

3. The automatic feeder of claim 1, wherein, The feeding hopper (5) includes a storage bin (33), a conveying pipe (34) communicated with one end of the storage bin (33), and an anti-blocking conveying assembly, the conveying pipe (34) is fixedly embedded on the rotating plate (4), and the anti-blocking conveying assembly is used to convey the raw materials in the storage bin (33) to the discharge port of the conveying pipe (34).

4. The automatic feeder of claim 3, wherein, The anti-blocking conveying assembly includes a conveying drive (30), a rotating rod (31) located inside the feeding hopper (5), and a spiral auger (32), the conveying drive (30) is arranged at the end of the storage bin (33) away from the conveying pipe (34), one end of the rotating rod (31) is connected with the output end of the conveying drive (30), the other end extends to the discharge port of the conveying pipe (34), and the spiral auger (32) is sleeved on the surface of the rotating rod (31) located in the conveying pipe (34).

5. The automatic feeder according to any one of claims 1 to 4, wherein, It also includes a knocking assembly capable of knocking each feeding hopper (5).

6. The automatic feeder of claim 5, wherein, The knocking assembly includes a knocking drive (22), a connecting rod (23), and a knocking rod (25), at least one end of the connecting rod (23) is provided with a fixed cavity (24), one end of the knocking rod (25) is connected with the inner wall of the fixed cavity (24) through a spring (28), the other end is adapted to abut against the outer wall of the feeding hopper (5), and the knocking drive (22) can drive the connecting rod (23) to rotate to drive the knocking rod (25) to knock the feeding hopper (5).

7. The automatic feeder of claim 6, wherein, The knocking assembly also includes a knocking limiting unit, the knocking limiting unit includes a limiting groove (26) and a limiting block (27), the limiting groove (26) is arranged in the fixed cavity (24), the limiting block (27) is connected with the end of the knocking rod (25), and the limiting block (27) and the limiting groove (26) are slidably connected.

8. The automatic feeder according to any one of claims 1 to 4, wherein, It also includes a lifting assembly to enable the rotating plate (4) and each feeding hopper (5) to perform lifting movement.

9. The automatic feeder of claim 8, wherein, The lifting assembly includes a lifting plate (3) arranged at the bottom of the rotating plate (4) and a lifting unit, the lifting plate (3) is rotationally connected with the rotating plate (4), one end of the lifting unit is connected with the stirrer (1), and the other end is connected with the bottom of the lifting plate (3).

10. The automatic feeder of claim 9, wherein, The lifting unit comprises a lifting driving member (6) arranged at a first end of a casing (2), and a rotating column (7), a guide rod (11) and a fixed seat (13) arranged in the casing (2) from bottom to top; one end of the rotating column (7) is connected with an output shaft of the lifting driving member (6), and the other end is rotationally connected with a second end of the casing (2); a roller (8) is sleeved on the rotating column (7); a chute (9) is formed on the roller (8) in a spiral shape and is connected in a head-to-tail manner; the guide rod (11) is connected with the first end and the second end respectively, and a sliding plate (12) is sleeved on the guide rod (11); a sliding block (10) is arranged at the bottom of the sliding plate (12) and is slidably connected with the chute (9); the sliding block (10) is driven to slide in the chute (9) by driving the roller (8) to rotate, so as to drive the sliding plate (12) to slide along the length direction of the guide rod (11); the sliding plate (12) is hingedly connected with one end of the fixed seat (13) through a connecting rod (14), and the other end of the fixed seat (13) is connected with the lifting plate (3); the lifting plate (3) is driven to move up and down by the left and right sliding of the sliding plate (12) along the length direction of the guide rod (11); and the first end and the second end are two ends of the casing (2) along the length direction.

11. The automatic feeder of claim 10, wherein, The lifting assembly further comprises a plurality of lifting limiting units arranged in the casing (2); one end of each of the lifting limiting units is connected with the lifting plate (3), and the other end is connected with the casing (2).

12. The automatic feeder of claim 11, wherein, The lifting limiting unit comprises a telescopic cylinder (15) and a telescopic rod (16); the bottom of the telescopic cylinder (15) is connected with the casing (2); a connecting groove (17) is formed in the telescopic cylinder (15); one end of the telescopic rod (16) is connected with the lifting plate (3), and the other end is adapted to be inserted into the telescopic cylinder (15); a connecting block (18) is sleeved on the end of the telescopic rod (16) in the telescopic cylinder (15); the connecting block (18) is adapted to be connected with the connecting groove (17) to limit the displacement of the telescopic rod (16) in the telescopic cylinder (15).

13. An automatic charging method, characterized by, The method comprises the following steps: different raw materials are transported into different feeding hoppers (5); each of the feeding hoppers (5) is driven to rotate around the central axis of the stirrer (1), so that each of the raw materials falls into the stirrer (1) in a spiral interweaving manner.

14. The automatic charging method according to claim 13, wherein, The step of transporting different raw materials into different feeding hoppers (5) comprises the following steps: the amount of raw materials in each of the feeding hoppers (5) is obtained, the difference between the amount and the required amount is determined, and the amount to be added is obtained based on the difference; it is determined whether the amount to be added is less than the remaining capacity of the feeding hopper (5); if yes, the feeding is completed at one time; if no, the difference between the amount to be added and the remaining capacity of the feeding hopper (5) is obtained, and the feeding is completed based on the difference.

15. The automatic charging method according to claim 13, wherein Further comprising: Judge the clogging of each of the raw materials in the feeding hopper (5), and execute anti-clogging measures based on the judgment result; Or Strike the feeding hopper (5) and / or drive the feeding hopper (5) to vibrate up and down, so as to prevent the raw materials in the feeding hopper (5) from being clogged.

16. The automatic charging method according to claim 15, wherein The judgment of the clogging of each of the raw materials in the feeding hopper (5) and the execution of anti-clogging measures based on the judgment result include: Obtain the weight change N1 of the amount of raw materials in the feeding hopper (5) within a time period T; Judge whether the weight change N1 is less than a first set threshold value, if yes, start the knocking assembly to strike the feeding hopper (5) to unblock, if not, turn off the knocking assembly; After a time period T1, obtain the weight change N2 of the amount of raw materials in the feeding hopper (5); Judge whether the weight change N2 is less than a second set threshold value, if yes, start the lifting assembly to vibrate the feeding hopper (5) up and down to unblock, if not, turn off the lifting assembly.

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