Intelligent straw rationing and distributing mechanism

Abstract

The application discloses an intelligent straw rationing and poking mechanism and relates to the technical field of straw rationing and conveying. The intelligent straw rationing and poking mechanism comprises two straw conveying chains arranged side by side, and a poking assembly is arranged between drive shafts at one end of the two straw conveying chains. The poking assembly comprises a limiting ring connected with the drive shafts at two ends, a plurality of poking clamps arranged in an annular array on the outer wall of the limiting ring, and a driver arranged in the limiting ring and used for driving the poking clamps to move up and down relative to the limiting ring. The extension height and timing of the poking clamps in a poking station are accurately controlled through the driver, and the opening and closing of the poking clamps are controlled in combination with a linkage, so that the amount of the straw clamped each time is accurately limited by the physical size and stroke of the clamps, the problems of inaccurate rationing and large fluctuation of a traditional poking mode are solved, a stable and homogeneous material flow is provided for subsequent processes, and the poking assembly is ingeniously integrated between the drive shafts of the two conveying chains, so that the structure is compact and the space utilization rate is high.

Description

A smart straw quantitative feeding mechanism Technical Field

[0001] This invention relates to the field of straw quantitative conveying technology, and in particular to an intelligent straw quantitative feeding mechanism. Background Technology

[0002] With the rapid development of modern agriculture and the increasing demand for sustainable production, the resource utilization of crop straw has become an important issue. Straw, as an important biomass resource, can be used in various fields such as power generation, board production, returning straw to the field, and feed processing. However, a crucial pre-treatment step in these utilization processes is the quantitative and orderly conveying and distribution of loose straw of varying lengths. Traditional straw conveying and feeding mechanisms, such as single conveyor belts, augers, or forks, often have several problems: on the one hand, they struggle to achieve precise quantitative grasping of straw, easily leading to uneven feeding in subsequent processes, affecting production efficiency and product quality; on the other hand, problems such as entanglement, blockage, and difficulty in compacting loose materials during conveying result in high equipment failure rates, discontinuous operation, and low automation.

[0003] In existing technologies, some equipment attempts to improve efficiency by modifying the conveying mechanism or adding simple material feeding devices. However, these solutions are often structurally complex or fail to effectively solve the core problem of quantitative feeding. For example, some mechanisms can only feed material from one place to another, but cannot precisely control the amount of straw fed each time, making it difficult to stabilize the process parameters of subsequent processes such as baling, compression, or chemical reactions. In addition, traditional material feeding mechanisms are not precise and reliable enough when gripping and releasing straw, which can easily cause material to scatter or be loosely clamped, making them unsuitable for the needs of continuous, high-speed, and intelligent production lines. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent straw quantitative feeding mechanism, which solves the problems of inaccurate quantitative feeding and large fluctuations in traditional feeding methods, and provides a stable and homogeneous material flow for subsequent processes. The feeding component is cleverly integrated between the drive shafts of two conveyor chains, with the advantages of compact structure and high space utilization.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent straw quantitative feeding mechanism, comprising two straw conveying chains arranged side by side, and a feeding component disposed between the drive shafts at one end of the two straw conveying chains;

[0006] The feeding assembly includes a limiting ring connected to the drive shaft at both ends, a plurality of feeding clamps arranged in a ring on the outer wall of the limiting ring, and a driver disposed within the limiting ring and driving the feeding clamps to move up and down relative to the limiting ring.

[0007] The limiting ring is provided with linkage components at both ends for driving the opening and closing of the feeding clamp; when the clamping end of the feeding clamp is located at the top and the whole is in a vertical state, the area between the two straw conveying chains above it is defined as the feeding station; when the clamping end of the feeding clamp is located at the bottom and remains in a vertical state, the area below it is defined as the discharging station.

[0008] The movement of the straw conveyor chain can drive the material feeding assembly to rotate as a whole, so that several material feeding clamps sequentially circulate through the material feeding station and the material discharging station;

[0009] When the feeding clamp rotates to the feeding station, the driver drives the feeding clamp to move upward. The upward movement is coordinated with the linkage to first open its clamping end and accommodate the straw from the straw conveying chain, and then continue to move upward and close the clamping end under the action of the linkage to clamp a fixed amount of straw.

[0010] The feeding clamp holding the straw then moves to the discharging station under the rotation of the feeding assembly, and resets at the station to release the straw it is holding.

[0011] Furthermore, a pressing conveyor chain is provided at the upper end of the straw conveyor chain, and the pressing conveyor chain and the straw conveyor chain press the straw together in the middle.

[0012] Furthermore, the limiting ring is provided with a limiting slot for the material feeding clamp to penetrate.

[0013] Furthermore, the material feeding fixture includes a movable support, a left clamping plate, a right clamping plate, and a mounting shaft. One end of the movable support is provided with a connecting bracket, and both ends of the mounting shaft are respectively axially connected to the connecting bracket. The left clamping plate is fixedly sleeved on the mounting shaft, and the right clamping plate is sleeved on the mounting shaft.

[0014] Furthermore, the connecting bracket is provided with a drive assembly that docks with the right clamping plate. The drive assembly includes a linkage rod, a drive gear, and a sleeve gear ring. The drive gear is sleeved on the linkage rod, and the sleeve gear ring is sleeved on one end of the right clamping plate, with the drive gear meshing with the sleeve gear ring.

[0015] Furthermore, the linkage rod and the mounting shaft are arranged side by side, with both ends of the linkage rod connected to the connecting bracket, and one end of the linkage rod connected to the mounting shaft via a belt.

[0016] Furthermore, the linkage includes a left support plate, a right support plate, a left rack, and a right rack. One end of the left support plate and the right support plate is connected to a limiting ring. A left rack is provided on the left support plate, and a right rack is provided on the right support plate. The left rack and the right rack are staggered vertically.

[0017] Furthermore, one end of the mounting shaft is positioned between the left and right support plates, and a linkage gear that meshes movably with the left and right racks is sleeved on the mounting shaft.

[0018] Furthermore, the driver is provided in a plurality of units, arranged in a ring array within the limiting ring, and the output ends of the plurality of drivers are respectively connected to the feeding fixture.

[0019] Furthermore, there are two drivers, symmetrically arranged at the feeding station and the unloading station. The output end of the driver is connected to the feeding fixture through a connector. The connector includes a snap-fit ​​rod that is hinged to the output end of the driver and a snap-fit ​​block located at the top of the snap-fit ​​rod. The bottom side of the feeding fixture has a slot that engages with the snap-fit ​​block.

[0020] The technical effects and advantages of this invention are as follows:

[0021] This invention precisely controls the extension height and timing of the feeding clamp at the feeding station using a driver, and controls its opening and closing in conjunction with a linkage mechanism. This ensures that the amount of straw gripped each time is precisely limited by the physical dimensions and stroke of the clamp, solving the problems of inaccurate quantity and large fluctuations in traditional feeding methods. It provides a stable and homogeneous material flow for subsequent processes. The feeding component is cleverly integrated between the drive shafts of two conveyor chains, resulting in a compact structure and high space utilization. The extension, retraction, opening, and closing actions of the feeding clamp are all driven by the same driver, achieved through a purely mechanical interaction with the fixed linkage mechanism, eliminating the need for a complex independent control system. The operation sequence is automatic and reliable with a low failure rate. Because the material-pulling clamp actively lifts and closes to hold the straw from below the gap in the conveyor chain, rather than forcibly digging or stirring it from the material pile, it causes minimal interference to the upper layer of material. This effectively avoids the problems of straw entanglement and clogging on the conveyor chain, ensuring the continuity of the conveying process. The clearly defined material-pulling and material-releasing stations completely separate the picking and releasing actions in space, preventing them from interfering with each other. After the straw is clamped at the material-pulling station, it is smoothly transferred to the material-releasing station for release by the rotation of the material-pulling component. The process is clear and smooth, improving the overall operating efficiency. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a side view of the overall structure of the present invention;

[0024] Figure 3 is a schematic diagram of the material feeding assembly structure of the present invention;

[0025] Figure 4 is a schematic diagram of the material feeding fixture structure of the present invention;

[0026] Figure 5 is a schematic diagram of the disassembled structure of the material feeding clamp of the present invention;

[0027] Figure 6 is an enlarged view of section A in Figure 4 of this invention;

[0028] Figure 7 is a schematic diagram of the installation structure of the connector and the feeding assembly of the present invention;

[0029] Figure 8 is a schematic diagram of the connector structure and the disassembled structure of the movable support of the present invention.

[0030] In the picture:

[0031] 1. Straw conveyor chain; 11. Pressing conveyor chain;

[0032] 2. Material feeding assembly; 21. Limiting ring; 211. Limiting slot; 22. Material feeding fixture; 221. Movable support; 222. Left clamping plate; 223. Right clamping plate; 224. Mounting shaft; 2241. Linkage gear; 225. Drive assembly; 2251. Linkage rod; 2252. Drive gear; 2253. Sleeve gear ring; 226. Slot; 23. Driver; 24. Linkage component; 241. Left support plate; 242. Right support plate; 243. Left rack; 244. Right rack;

[0033] 3. Connector; 31. Connecting rod; 32. Locking block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Referring to Figures 1-6, this is the first embodiment of the present invention, which provides an intelligent straw quantitative feeding mechanism, including two straw conveying chains 1 arranged side by side, and a feeding component 2 arranged between the drive shafts at one end of the two straw conveying chains 1. The two straw conveying chains 1 arranged side by side form a continuous material conveying platform, on which straw to be processed is laid. The drive shafts of the conveying chains simultaneously support and drive the feeding component 2 arranged between them.

[0036] The feeding assembly 2 includes a limiting ring 21 connected to the drive shaft at both ends, a plurality of feeding clamps 22 arranged in a ring on the outer wall of the limiting ring 21, and a driver 23 disposed in the limiting ring 21 and driving the feeding clamps 22 to move up and down relative to the limiting ring 21.

[0037] The end of the limiting ring 21 is fixedly connected to the drive shaft and rotates synchronously with it, serving as the basis for the rotation and load-bearing of the entire assembly. Multiple material feeding clamps 22 are installed in a ring array on the outer circumferential wall of the limiting ring 21, usually in a uniform distribution. Each material feeding clamp 22 can independently move radially relative to the limiting ring 21 under the drive of the driver 23.

[0038] The limiting ring 21 is provided with linkage components 24 at both ends for driving the opening and closing of the material feeding clamp 22; when the clamping end of the material feeding clamp 22 is located at the top and the whole is in a vertical state, the area between the two straw conveying chains 1 above it is defined as the material feeding station; when the clamping end of the material feeding clamp 22 is located at the bottom and remains in a vertical state, the area below it is defined as the material discharging station.

[0039] The movement of the straw conveyor chain 1 can drive the material feeding assembly 2 to rotate as a whole, so that a number of material feeding clamps 22 sequentially pass through the material feeding station and the material discharging station.

[0040] When the feeding clamp 22 rotates to the feeding station, the driver 23 drives the feeding clamp 22 to move upward. Its upward movement is coordinated with the linkage 24. First, it opens its clamping end and accommodates the straw from the straw conveying chain 1. Then, it continues to move upward and closes the clamping end under the action of the linkage 24 to clamp a fixed amount of straw.

[0041] The feeding clamp 22 holding the straw then moves to the feeding station under the rotation of the feeding assembly 2, and resets at the station to release the straw it is holding.

[0042] When the straw conveyor chain 1 is running, the drive shaft drives the feeding assembly 2 to rotate as a whole. When a feeding clamp 22 moves to its feeding position with the rotation, the driver 23 starts and pushes the feeding clamp 22 to extend upward from inside the limit ring 21.

[0043] During this upward movement, the clamping end of the material feeding clamp 22 will come into contact with and move relative to the linkage 24 fixed at both ends of the limiting ring 21. This engagement first forces the clamping end to open, making it like an open bucket or claw. During the upward movement, its opening is accurately aligned with and catches a portion of the straw moving on the conveyor chain from below.

[0044] The material feeding clamp 22 continues to move upward, and its cooperation with the linkage 24 enters the next stage. At this time, the linkage 24 will drive the clamping end to close, thereby firmly clamping the part of straw that is caught in the clamp. Since the opening size and stroke of the clamp are fixed, the amount of straw clamped each time is basically constant, thus achieving quantitative control.

[0045] After the clamping is completed, the conveyor chain and the material feeding assembly 2 continue to rotate. The material feeding clamp 22 holding the straw rotates together with the limiting ring 21 and leaves the material feeding station.

[0046] When it rotates to the unloading position, the driver 23 controls the material feeding clamp 22 to retract into the limit ring 21.

[0047] During the downward reset process, the material feeding clamp 22 engages with the linkage 24 again, but the action is reversed at this time. That is, the linkage 24 drives the clamping end to open, releasing the quantitative straw clamped therein, which falls into the designated container below or the equipment of the next process.

[0048] The driver 23 precisely controls the extension height and timing of the feeding clamp 22 at the feeding station, and in conjunction with the linkage 24, controls its opening and closing, ensuring that the amount of straw picked up each time is precisely limited by the physical size and stroke of the clamp. This fundamentally solves the problem of inaccurate quantitative distribution and large fluctuations in traditional feeding methods, and provides a stable and homogeneous material flow for subsequent processes.

[0049] The material feeding assembly 2 is cleverly integrated between the drive shafts of the two conveyor chains, featuring a compact structure and high space utilization. The extension and opening / closing actions of the material feeding clamp 22 are all driven by the same driver 23, achieving a purely mechanical operation through the fixed linkage 24. This eliminates the need for a complex independent control system, ensuring automatic and reliable operation with a low failure rate. Since the material feeding clamp 22 actively lifts and closes to hold the straw from below the gap in the conveyor chain, rather than forcibly pulling or stirring it from the material pile, it minimizes interference with the upper layer of material. This effectively avoids the problems of straw entanglement and clogging on the conveyor chain, ensuring the continuity of the conveying process. The clearly defined feeding and discharging stations completely separate the picking and discharging actions in space, preventing interference between them. After being picked up at the feeding station, the straw is smoothly transferred to the discharging station by the rotation of the material feeding assembly 2 for release. The process is clear and smooth, improving overall operational efficiency.

[0050] A pressing conveyor chain 11 is provided at the upper end of the straw conveyor chain 1, and the pressing conveyor chain 11 and the straw conveyor chain 1 press the straw together in the middle.

[0051] Through the coordinated operation of the pressing conveyor chain 11 and the straw conveyor chain 1 below, loose and fluffy straw can be stably pressed together between the two, ensuring that the straw has been initially sorted and compacted before entering the feeding station, forming a material layer with more uniform thickness and density. This creates stable and reliable material conditions for subsequent quantitative clamping. Moreover, the straw is constrained by the pressing conveyor chain 11 and the straw conveyor chain 1 during the conveying process, reducing the bouncing, rolling and scattering of the material. When the feeding clamp 22 moves up at the feeding station and opens its clamping end, it faces a relatively flat and dense straw layer. This is conducive to the feeding clamp 22 more accurately picking up the predetermined volume of straw, thereby greatly improving the accuracy of the amount of straw clamped each time and the consistency between batches, making the quantitative effect more reliable.

[0052] The limiting ring 21 has a limiting slot 211 for the material feeding clamp 22 to pass through.

[0053] The material feeding fixture 22 includes a movable support 221, a left clamping plate 222, a right clamping plate 223, and a mounting shaft 224. One end of the movable support 221 is provided with a connecting bracket, and both ends of the mounting shaft 224 are respectively axially connected to the connecting bracket. The left clamping plate 222 is fixedly sleeved on the mounting shaft 224, and the right clamping plate 223 is sleeved on the mounting shaft 224.

[0054] The connecting bracket is provided with a drive assembly 225 that docks with the right clamping plate 223. The drive assembly 225 includes a linkage rod 2251, a drive gear 2252, and a sleeved gear ring 2253. The drive gear 2252 is sleeved on the linkage rod 2251, and the sleeved gear ring 2253 is sleeved on one end of the right clamping plate 223. The drive gear 2252 meshes with the sleeved gear ring 2253. The linkage rod 2251 is arranged side by side with the mounting shaft 224. Both ends of the linkage rod 2251 are shaft-connected to the connecting bracket, and one end of the linkage rod 2251 is docked with the mounting shaft 224 via a belt.

[0055] The linkage 24 includes a left support plate 241, a right support plate 242, a left rack 243, and a right rack 244. One end of the left support plate 241 and the right support plate 242 is connected to the limiting ring 21. The left support plate 241 is provided with a left rack 243, and the right support plate 242 is provided with a right rack 244. The left rack 243 and the right rack 244 are staggered vertically. One end of the mounting shaft 224 is located between the left support plate 241 and the right support plate 242, and a linkage gear 2241 that meshes with the left rack 243 and the right rack 244 is sleeved on the mounting shaft 224.

[0056] The opening and closing action of the material feeding clamp 22 is achieved through a precision gear transmission pair consisting of the linkage rod 2251, the drive gear 2252, and the sleeve gear ring 2253. The power comes from the rotation of the mounting shaft 224, which ensures that the left clamping plate 222 and the right clamping plate 223 open and close precisely and synchronously at the predetermined position, avoiding material leakage or clamping failure due to insufficient clamping force or incomplete action. The drive assembly 225 is highly integrated on the connecting bracket of the movable support 221. The linkage rod 2251 and the mounting shaft 224 are arranged side by side and connected by a belt, realizing the power transmission and conversion from the rotation of a main shaft to the opening and closing motion of the clamp. The left rack 243 and the right rack 244 are on the left support plate 241 and the right support plate 2253. The plates 242 are staggered vertically and work in conjunction with the linkage gear 2241 to form a mechanical program controller. When the material feeding clamp 22 moves upward, the linkage gear 2241 meshes with different racks in sequence, first driving the mounting shaft 224 to rotate in one direction to open the clamp, and then driving it to rotate in the opposite direction to close the clamp. The entire opening and closing process is automatic, continuous, and requires no external electrical signal intervention, making it extremely reliable. Since the opening degree and upward stroke of the clamp are fixed and adjustable, when the clamp moves upward through the compacted straw layer, this fixed space can accurately cut and accommodate a portion of straw with a defined volume, and then immediately close to lock it. Through the mechanical constant volume method, the high consistency of the material feeding amount is ensured each time.

[0057] Specifically, when the material feeding clamp 22 is driven by the driver 23 to move upward from the feeding station, the linkage gear 2241 at the end of its mounting shaft 224 immediately meshes with the left rack 243 in the linkage component 24. Since the left rack 243 is fixed, the upward movement of the material feeding clamp 22 forces the linkage gear 2241 to roll along the rack, thereby driving the mounting shaft 224 to rotate precisely. The rotation of the mounting shaft 224 directly causes the left clamping plate 222, which is fixedly sleeved on it, to swing accordingly. At the same time, this rotational motion is synchronously transmitted to the parallel linkage rods 2251 via belt drive. The drive gear 2252 on the linkage rod 2251 meshes with the sleeved gear ring 2253 fitted onto one end of the right clamping plate 223, thereby converting the rotational motion of the mounting shaft 224 into a reverse symmetrical oscillation of the right clamping plate 223 around the same mounting shaft 224. Driven by the left rack 243, the single rotational motion of the mounting shaft 224, through rigid mechanical connection and gear transmission, forcibly and synchronously drives the left clamping plate 222 and the right clamping plate 223 to unfold symmetrically to both sides, opening the clamping end of the clamp. The clamp remains in the open state and continues to move upward, its open V-shaped or U-shaped opening precisely cutting into and accommodating the measured amount of straw from the compacted straw layer above. When the linkage gear 2241 moves to the end of the left rack 243 and disengages from it, the clamp is in the maximum open state and has completed the material collection. After the material feeding clamp 22 continues to move upward a short distance, the linkage gear 2241 begins to mesh with the right rack 244, which is offset below. Because the tooth direction of the right rack 244 is opposite to that of the left rack 243, the rotation direction of the linkage gear 2241 is reversed. This reversing motion, through the transmission chain of the mounting shaft 224 and the drive assembly 225, forces the left clamping plate 222 and the right clamping plate 223 to close symmetrically and forcefully from the unfolded state towards the center line, thereby tightly clamping the measured amount of straw contained therein. At this point, the material handling action is completed. The material feeding clamp 22, which holds the straw, rotates with the material feeding assembly 2 as a whole and is transported to the discharging station. The driver 23 drives the material feeding clamp 22 to retract. At this time, the linkage gear 2241 first meshes with the right rack 244. Since the movement direction of the material feeding clamp 22 is opposite to that during material handling, but it is the same right rack 244 that is engaged, the rotation direction generated is the same as that during the material handling closing stage. This rotational motion drives the left and right clamps to open symmetrically again, and the clamped straw falls naturally under the action of gravity, completing the precise feeding. The feeding clamp 22 continues to move down, the linkage gear 2241 disengages from the right rack 244, and finally returns to the initial position, ready to enter the next working cycle.

[0058] Several drivers 23 are provided, arranged in a ring array within the limiting ring 21, and the output ends of several drivers 23 are respectively connected to the feeding clamp 22.

[0059] Example 2: Referring to Figures 7-8, this is the second embodiment of the present invention. This embodiment differs from the first embodiment in that there are two drivers 23, which are symmetrically arranged at the feeding station and the unloading station. The output end of the driver 23 is connected to the feeding fixture 22 through the connector 3. The connector 3 includes a locking rod 31 that is hinged to the output end of the driver 23 and a locking block 32 that is provided at the top of the locking rod 31. The bottom side of the feeding fixture 22 is provided with a slot 226 that is movably engaged with the locking block 32.

[0060] Two actuators 23 are independently and symmetrically positioned at the feeding and unloading stations. The actuator 23 only drives the arriving feeding clamp 22 at its corresponding station on demand, meaning it only operates at the moment when an upward feeding or downward unloading action is required. The connector 3 uses a hinged locking rod 31 and a locking block 32 at the top, which engages with the locking groove 226 at the bottom of the feeding clamp 22. The hinged design of the locking rod 31 allows for a certain positional tolerance, ensuring that the locking block 32 can smoothly slide into the locking groove 226 for reliable connection when the feeding clamp 22 rotates into position. After the action is completed, the rotational movement of the feeding clamp 22 can naturally disengage from the locking block 32, achieving intelligent mechanical interaction of automatic docking-driving-automatic disengagement. The operation is smooth and reliable. By setting a fixed actuator 23 at key stations and utilizing a cleverly designed movable engaging connector 3, an instantaneous driving force connection is established with the rotating feeding clamp 22 at a precise moment, driving it to complete a specific action before automatically disengaging.

[0061] In the non-operational station, the material feeding clamp 22 rotates as a whole with the material feeding assembly 2, and its bottom slot 226 is in an empty state, without contact with the driver 23 and its connector 3 fixed on the frame. The material feeding clamp 22 maintains a stable posture by relying on its own structure. When a material feeding clamp 22 rotates to the material feeding station and stops accurately, its bottom slot 226 just moves into the range of motion of the connector 3 above the driver 23 at the material feeding station. The driver 23 moves or through a preset mechanical linkage to push or swing the locking rod 31 at its output end, so that the locking block 32 at the top of the locking rod 31 is precisely embedded in the slot 226 at the bottom of the material feeding clamp 22, forming a temporary but firm rigid connection. The driver 23 directly drives the material feeding clamp 22 to move upward through the engaged connector 3 to perform the upward gripping action. After the upward stroke is completed, the driver 23 briefly holds or retracts a small distance. At this time, due to the continuous macroscopic motion of the feeding assembly 2 rotating under the drive of the conveyor chain, the horizontal displacement of the driven feeding clamp 22 will force the locking block 32 to slide out of the slot 226, achieving automatic and smooth mechanical disengagement. Subsequently, the feeding clamp 22 carries the straw into the transfer stage. The feeding clamp 22 holding the straw rotates to the discharge station. Another driver 23 at the discharge station, through its connector 3, in the same manner, engages the locking block 32 into the slot 226 of the feeding clamp 22. The driver 23 drives the feeding clamp 22 to perform a downward discharge action.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent straw quantitative feeding mechanism, comprising two straw conveyor chains arranged side by side (1), characterized in that, A feeding assembly (2) is provided between the drive shafts at one end of the two straw conveyor chains (1); the feeding assembly (2) includes a limiting ring (21) connected to the drive shafts at both ends, a plurality of feeding clamps (22) arranged in annular array on the outer wall of the limiting ring (21), and a driver (23) provided inside the limiting ring (21) and driving the feeding clamps (22) to move up and down relative to the limiting ring (21); the two ends of the limiting ring (21) are provided with linkages (24) for driving the feeding clamps (22) to open and close; when the clamping end of the feeding clamp (22) is located at the top and the whole is in a vertical state, the two straw conveyor chains above it... The straw conveyor chain (1) is defined as a feeding station; when the clamping end of the feeding clamp (22) is located below and remains vertical, the area below it is defined as a discharging station; the movement of the straw conveyor chain (1) can drive the feeding assembly (2) to rotate as a whole, so that several feeding clamps (22) sequentially cycle through the feeding station and the discharging station; when the feeding clamp (22) rotates to the feeding station, the driver (23) drives the feeding clamp (22) to move upward, and its upward movement cooperates with the linkage (24) to first open its clamping end and accommodate the straw from the straw conveyor chain (1), and then continue to move upward and in the linkage The clamping end is closed under the action of the moving part (24) to clamp a fixed amount of straw; the feeding clamp (22) holding the straw then moves to the feeding station under the rotation of the feeding assembly (2) and resets at the station to release the clamped straw; the feeding clamp (22) includes a movable support (221), a left clamping plate (222), a right clamping plate (223) and a mounting shaft (224). One end of the movable support (221) is provided with a connecting bracket, and both ends of the mounting shaft (224) are respectively axially connected to the connecting bracket. The left clamping plate (222) is fixedly sleeved on the mounting shaft (224), and the right clamping plate (223) is sleeved on the mounting shaft (224); The linkage component (24) includes a left support plate (241), a right support plate (242), a left rack (243), and a right rack (244). One end of the left support plate (241) and the right support plate (242) is connected to the limiting ring (21). A left rack (243) is provided on the left support plate (241), and a right rack (244) is provided on the right support plate (242). The left rack (243) and the right rack (244) are staggered vertically. One end of the mounting shaft (224) is located between the left support plate (241) and the right support plate (242), and a linkage gear (2241) is sleeved on the mounting shaft (224) to engage with the left rack (243) and the right rack (244).

2. The intelligent straw quantitative feeding mechanism according to claim 1, characterized in that, The upper end of the straw conveying chain (1) is provided with a pressing conveying chain (11), and the pressing conveying chain (11) and the straw conveying chain (1) press the straw together in the middle.

3. The intelligent straw quantitative feeding mechanism according to claim 1, characterized in that, The limiting ring (21) has a limiting slot (211) for the material feeding clamp (22) to pass through.

4. The intelligent straw quantitative feeding mechanism according to claim 1, characterized in that, The connecting bracket is provided with a drive assembly (225) that docks with the right clamping plate (223). The drive assembly (225) includes a linkage rod (2251), a drive gear (2252), and a sleeved gear ring (2253). The drive gear (2252) is sleeved on the linkage rod (2251), and the sleeved gear ring (2253) is sleeved on one end of the right clamping plate (223), and the drive gear (2252) meshes with the sleeved gear ring (2253).

5. The intelligent straw quantitative feeding mechanism according to claim 4, characterized in that, The linkage rod (2251) and the mounting shaft (224) are arranged side by side. Both ends of the linkage rod (2251) are connected to the connecting bracket. One end of the linkage rod (2251) is connected to the mounting shaft (224) via a belt.

6. The intelligent straw quantitative feeding mechanism according to claim 1, characterized in that, The driver (23) is provided in a ring array within the limiting ring (21), and the output ends of the driver (23) are respectively connected to the feeding clamp (22).

7. The intelligent straw quantitative feeding mechanism according to claim 1, characterized in that, Two drivers (23) are provided, symmetrically arranged at the feeding station and the unloading station. The output end of the driver (23) is connected to the feeding fixture (22) through the connector (3). The connector (3) includes a snap-fit ​​rod (31) hinged to the output end of the driver (23) and a snap-fit ​​block (32) set at the top of the snap-fit ​​rod (31). The bottom side of the feeding fixture (22) is provided with a slot (226) that engages with the snap-fit ​​block (32).

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