Cotton stalk pulling and impurity removing sorting device

Abstract

The application discloses a cotton stalk pulling and impurity removing sorting device, and relates to the technical field of agricultural machinery, which comprises a pair of trapezoidal side plates fixed on a tractor, a plurality of connecting horizontal plates are fixed at the bottom of the trapezoidal side plates, and a plurality of conveying chain belts are arranged above the trapezoidal side plates. A swing shaft is rotatably inserted into the lower left corner of the trapezoidal side plate, an inclined plate is fixed on the shaft, three pairs of fixed shafts are inserted into the bottom of the plate, a stalk pulling roller is sleeved on the top end of the shaft, and the swing shaft is connected with the trapezoidal side plate through an adjusting mechanism. A rectangular sliding plate is arranged in the middle of the trapezoidal side plate, the sliding plate is slidably arranged in a rectangular sliding hole of the side plate, a fixed plate is fixed on the front side plate, the sliding plate is connected with the front side plate through a reciprocating mechanism, and impurity removing vibration pieces are fixed on the sliding plate and are alternately distributed with the conveying chain belts. The components are cooperated to realize continuous pulling, conveying and impurity removing, solve the problems of poor conveying and incomplete impurity removing, adapt to the operation of the tractor, and improve the processing efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a cotton stalk pulling, impurity removal, and sorting device. Background Technology

[0002] In agricultural production and processing, cotton stalk processing is a crucial step. Traditional methods rely heavily on manual labor for pulling and sorting stalks, which is inefficient and labor-intensive. Especially in large-scale cotton fields, manual processing is costly and fails to meet the demands of modern agriculture for high-efficiency production. Therefore, the introduction of mechanized cotton stalk processing equipment has become a trend in the industry.

[0003] In current cotton stalk processing methods, manual stalk pulling is inefficient, while mechanical stalk pulling often results in missed stalks due to unstable gripping, and the stalks are often covered with dirt and other impurities after pulling. Traditional devices are prone to jamming during transport, and impurity removal relies heavily on a single shaking motion, leaving many impurities behind. Furthermore, the fixed stalk pulling angle has poor adaptability, making it difficult to coordinate with tractors for efficient operation and impacting subsequent processing. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where mechanical stalk pulling often results in missed stalks due to unstable gripping, and where cotton stalks are covered with mud and other impurities after pulling. Therefore, this invention proposes a cotton stalk pulling, impurity removal, and sorting device.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A cotton stalk pulling, impurity removal and sorting device includes a pair of trapezoidal side plates, which are fixedly installed on a tractor. A number of equidistant connecting horizontal plates are fixed between the bottoms of the pair of trapezoidal side plates, and a number of equidistant conveyor belts are provided above the number of connecting horizontal plates. A swing shaft is rotatably inserted between the lower left corners of the pair of trapezoidal side plates. An inclined plate is fixedly installed in the middle section of the swing shaft. Three pairs of fixed shafts are rotatably inserted at the bottom of the outer side of the inclined plate. A concentrically fixed pulling roller is sleeved at the top of each fixed shaft. The swing shaft is connected to the pair of trapezoidal side plates through an adjustment mechanism. Each trapezoidal side plate has a rectangular sliding hole in the middle, and a pair of rectangular sliding plates are provided between the middle of a pair of trapezoidal side plates. The front and rear ends of each rectangular sliding plate are slidably inserted into the corresponding rectangular sliding hole. A fixing plate is fixed on the front of the trapezoidal side plate. The fixing plate is connected to a pair of rectangular sliding plates through a reciprocating mechanism. Several equally spaced impurity removal vibrating plates are fixed on each rectangular sliding plate. The impurity removal vibrating plates and several conveyor belts are alternately distributed.

[0006] Preferably, a plurality of equally spaced conveyor shafts are rotatably inserted between a pair of trapezoidal side plates, and a plurality of equally spaced conveyor sprockets are fixedly fitted on each of the conveyor shafts, with each conveyor chain belt fitted on the corresponding conveyor sprocket.

[0007] Preferably, a first motor is fixedly installed at the upper right corner of the front of the trapezoidal side plate, and the end of the motor shaft of the first motor is fixedly connected to the front end of the rightmost conveyor shaft.

[0008] Preferably, the adjustment mechanism includes a limiting swing arm and an electric telescopic cylinder. The front end of the swing shaft is fixedly provided with a limiting swing arm, and the outer end of the limiting swing arm is provided with an elliptical pin hole. The front of the trapezoidal side plate is fixedly installed with an electric telescopic cylinder. The telescopic rod end of the electric telescopic cylinder is fixedly provided with an L-shaped connecting plate, and the outer end of the L-shaped connecting plate is fixedly provided with a limiting pin. The outer end of the limiting pin is slidably inserted into the elliptical pin hole.

[0009] Preferably, each of the fixed shafts is fitted with a concentrically fixed transmission gear at its bottom end, and adjacent pairs of transmission gears are meshed together; the bottom ends of the pair of fixed shafts on the front and rear sides and the pair of fixed shafts in the middle extend downward and are fitted with concentrically fixed driven sprockets.

[0010] Preferably, a first through hole is provided on the front side of the bottom of the inclined plate, and a second motor with the output end facing downward is fixedly installed inside the first through hole. A drive sprocket is concentrically fixed to the end of the motor shaft of the second motor. The drive sprocket is synchronously meshed and driven by a pair of driven sprockets on the same side through a first triangular chain belt.

[0011] Preferably, a rotatably connected linkage shaft is inserted into the rear side of the bottom surface of the inclined plate, and a concentrically fixed linkage sprocket is sleeved at the bottom end of the linkage shaft. The linkage sprocket is synchronously meshed and driven by a pair of driven sprockets on the same side through a second triangular chain belt.

[0012] Preferably, the reciprocating mechanism includes a double-headed swing arm and a driven link. A reciprocating shaft is rotatably inserted into the center of the top surface of the fixed plate. A double-headed swing arm is fixed at the top end of the reciprocating shaft. A pair of movably hinged driven links are provided at both ends of the double-headed swing arm. The outer end of each driven link is movably hinged to a rectangular sliding plate on the same side.

[0013] Preferably, the front end of the fixing plate is provided with a second through hole, and a third motor with its output end facing upward is fixedly installed inside the second through hole. A crank is fixedly provided at the end of the motor shaft of the third motor.

[0014] Preferably, the outer end of the crank is provided with a reciprocating connecting rod that is movably hinged, and the outer end of the reciprocating connecting rod is movably hinged to one end of the double-headed swing arm.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the inclined plate, in conjunction with the stalk-pulling roller, rotates relative to the cotton stalk under the drive of the second motor through the transmission gear and chain belt, firmly gripping and pulling out the cotton stalk. With the adjustable tilt angle design, the cotton stalk is smoothly transported to the conveyor chain belt. 2. In this invention, the rectangular sliding plate drives the impurity removal vibrating plate, which vibrates at high frequency under the action of the reciprocating mechanism. It is alternately distributed with the conveyor belt, fully contacting the cotton stalks and knocking off impurities such as mud. The impurities fall off through the connecting horizontal plate, resulting in a good purification effect. In summary, the components of this invention work together to ensure that stalk pulling, conveying, and impurity removal are carried out in a continuous manner. The adjustment mechanism and reciprocating mechanism solve the problems of poor conveying and incomplete impurity removal, making it suitable for tractor operation and improving the efficiency and quality of cotton stalk processing. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall installation of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 5 This is a schematic diagram showing the distribution of several conveyor shafts and several conveyor belts according to the present invention; Figure 6 This is a schematic diagram of the reciprocating mechanism of the present invention; Figure 7 This is a schematic diagram of the inclined plate and three pairs of pulling rollers of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the inclined plate of the present invention; The numbers in the diagram are as follows: 100, trapezoidal side plate; 101, connecting horizontal plate; 102, conveyor shaft; 103, conveyor sprocket; 104, conveyor chain; 105, first motor; 200, inclined plate; 201, swing shaft; 202, limiting swing arm; 203, electric telescopic cylinder; 204, L-shaped connecting plate; 205, limiting pin; 206, fixed shaft; 207, stalk pulling roller; 208, transmission gear; 209, second motor; 210, first triangular chain; 211, linkage shaft; 212, second triangular chain; 300, rectangular sliding plate; 301, impurity removal vibrating plate; 302, fixed plate; 303, reciprocating shaft; 304, double-headed swing arm; 305, driven connecting rod; 306, third motor; 307, crank; 308, reciprocating connecting rod. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1: This example provides a cotton stalk pulling, impurity removal, and sorting device. See [link to example]. Figures 1 to 8 Specifically, it includes a pair of trapezoidal side plates 100, which are fixedly installed on the tractor. The pair of trapezoidal side plates 100 are used to fix the entire device on the tractor, forming the main frame of the device. A number of equidistant connecting horizontal plates 101 are fixed between the bottoms of the pair of trapezoidal side plates 100, which support the device and provide a channel for impurities to fall. A number of equidistant conveyor belts 104 are provided above the number of connecting horizontal plates 101. A swing shaft 201 is rotatably inserted between the lower left corners of a pair of trapezoidal side plates 100. An inclined plate 200 is fixedly installed in the middle section of the swing shaft 201. The swing shaft 201 is connected to the adjustment mechanism, which can drive the inclined plate 200 to adjust the angle so that the cotton stalk can slide from the pulling roller 207 to the conveyor belt 104. Three pairs of fixed shafts 206 are rotatably inserted at the bottom of the outer side of the inclined plate 200. The top of each fixed shaft 206 is fitted with a concentrically fixed pulling roller 207. The swing shaft 201 is connected to a pair of trapezoidal side plates 100 through the adjustment mechanism. Each trapezoidal side plate 100 has a rectangular sliding hole in the middle, and a pair of rectangular sliding plates 300 are provided between the middle of a pair of trapezoidal side plates 100. The front and rear ends of each rectangular sliding plate 300 are slidably inserted into the corresponding rectangular sliding hole. A fixing plate 302 is fixed on the front of the trapezoidal side plate 100. The fixing plate 302 is used to install the reciprocating mechanism and provide support. The fixing plate 302 is connected to a pair of rectangular sliding plates 300 through the reciprocating mechanism. Several equally spaced impurity removal vibrating plates 301 are fixed on each rectangular sliding plate 300. Several impurity removal vibrating plates 301 are alternately distributed with several conveyor belts 104. The rectangular sliding plate 300 is equipped with impurity removal vibrating plates 301 and moves back and forth under the drive of the reciprocating mechanism, so that the impurity removal vibrating plates 301 vibrate to remove cotton stalk impurities.

[0019] It should be noted that in this embodiment, a plurality of equally spaced conveying shafts 102 are rotatably inserted between a pair of trapezoidal side plates 100. A plurality of equally spaced conveying sprockets 103 are fixedly sleeved on each conveying shaft 102. Each conveying chain 104 is sleeved on the corresponding conveying sprocket 103. A first motor 105 is fixedly installed at the upper right corner of the front of the trapezoidal side plate 100. The end of the motor shaft of the first motor 105 is fixedly connected to the front end of the rightmost conveying shaft 102. The conveying shaft 102 and the conveying sprocket 103 cooperate to drive the conveying chain 104 to rotate under the drive of the first motor 105, thereby realizing the conveying of cotton stalks.

[0020] In the specific implementation process, such as Figure 7 and Figure 8 As shown, each fixed shaft 206 has a concentrically fixed transmission gear 208 fitted at its bottom end, and adjacent pairs of transmission gears 208 are meshed together; the bottom ends of the pair of fixed shafts 206 on the front and rear sides and the pair of fixed shafts 206 in the middle extend downward and are fitted with concentrically fixed driven sprockets. The bottom front side of the inclined plate 200 has a first through hole. A second motor 209 with the output end facing down is fixedly installed inside the first through hole. The motor shaft end of the second motor 209 is fitted with a concentrically fixed drive sprocket. The drive sprocket is synchronously meshed with a pair of driven sprockets on the same side through a first triangular chain belt 210. A rotatably connected linkage shaft 211 is inserted into the rear side of the bottom surface of the inclined plate 200. A concentrically fixed linkage sprocket is sleeved at the bottom end of the linkage shaft 211. The linkage sprocket is synchronously meshed with a pair of driven sprockets on the same side through the second triangular chain belt 212. The fixed shaft 206 is equipped with a stalk pulling roller 207 and a transmission gear 208. Under the drive of the second motor 209, the stalk pulling roller 207 is rotated relative to each other through the sprocket and chain belt to complete the stalk pulling.

[0021] The working principle of this embodiment is as follows: In the cotton stalk pulling, impurity removal and sorting operation, all components of the whole device work closely together and operate in an orderly manner. First, the tilt angle of the inclined plate 200 and the swing shaft 201 is precisely controlled by the adjustment mechanism to prepare for the subsequent cotton stalk conveying. At the same time, the reciprocating mechanism starts to work, controlling a pair of rectangular sliding plates 300 to swing back and forth regularly, driving several impurity removal vibrating plates 301 on them to perform high-frequency reciprocating vibration synchronously. In terms of power transmission, after the first motor 105 starts, its motor shaft generates power, which drives several conveyor shafts 102 to start rotating, thereby causing several conveyor sprockets 103 fixedly mounted on the conveyor shafts 102 to operate synchronously, and several conveyor belts 104 meshing with them also rotate, forming a continuous conveying channel. At the same time, the second motor 209 is turned on, and its downward-facing motor shaft drives the drive sprocket to rotate synchronously. The drive sprocket transmits power to a pair of driven sprockets on the same side through the first triangular chain belt 210. The pair of driven sprockets drive the corresponding fixed shaft 206 to rotate. Under the combined action of the meshing of the transmission gears 208 and the second triangular chain belt 212, the driven sprocket, fixed shaft 206, transmission gear 208 and stalk pulling roller 207 on the other side rotate in opposite directions, ultimately achieving a highly efficient working state in which each pair of stalk pulling rollers 207 rotates relative to each other. When the tractor pulls the device into the cotton stalk field to start working, the three pairs of stalk-pulling rollers 207 move forward with the tractor. Under the relative prying force of each pair of stalk-pulling rollers 207, the cotton stalks are firmly grasped and pulled out of the soil. The pulled-out cotton stalks are conveyed backward along the inclined surface of the inclined plate 200 to several conveyor belts 104. The conveyor belts 104 continue to operate, driving the cotton stalks backward. When the cotton stalks pass above a pair of rectangular sliding plates 300, several impurity removal vibrating plates 301 in a high-frequency vibration state come into full contact with the cotton stalks. Through strong vibration, the soil and other impurities attached to the cotton stalks are completely knocked off. These impurities fall into the farmland along the connecting horizontal plate 101, while the cotton stalks that have completed the impurity removal continue to move forward on the conveyor belts 104, waiting for subsequent processing, thus efficiently completing the cotton stalk pulling, impurity removal, and sorting work.

[0022] Example 2: Based on Example 1, an adjustment mechanism and a reciprocating mechanism are adopted. Through the coordinated operation of components such as the limiting swing arm 202, the electric telescopic cylinder 203, and the double-headed swing arm 304, the angle of the inclined plate 200 is precisely adjusted and the high-frequency vibration of the impurity removal vibrating plate 301 is achieved. This solves the problems of poor cotton stalk conveying and incomplete impurity removal, and efficiently completes the cotton stalk pulling, conveying, and impurity removal work; it also includes: In the specific implementation process, such as Figure 2 and Figure 7As shown, the adjustment mechanism includes a limiting swing arm 202 and an electric telescopic cylinder 203. The limiting swing arm 202 is fixedly installed at the front end of the swing shaft 201. An elliptical pin hole is opened at the outer end of the limiting swing arm 202. An electric telescopic cylinder 203 is fixedly installed on the front of the trapezoidal side plate 100. An L-shaped connecting plate 204 is fixedly installed at the end of the telescopic rod of the electric telescopic cylinder 203. A limiting pin 205 is fixedly installed at the outer end of the L-shaped connecting plate 204. The outer end of the limiting pin 205 is slidably inserted into the elliptical pin hole. The limiting swing arm 202, the electric telescopic cylinder 203 and other components in the adjustment mechanism work together to achieve precise adjustment of the angle of the tilting plate 200.

[0023] In the specific implementation process, such as Figure 2 and Figure 6 As shown, the reciprocating mechanism includes a double-headed swing arm 304 and a driven link 305. A reciprocating shaft 303 is rotatably inserted into the middle of the top surface of the fixed plate 302. The top end of the reciprocating shaft 303 is fixed with a double-headed swing arm 304. A pair of driven links 305 are provided at both ends of the double-headed swing arm 304. The outer end of each driven link 305 is movably hinged to the rectangular slide plate 300 on the same side. The front end of the fixed plate 302 is provided with a second through hole. A third motor 306 with the output end facing upward is fixedly installed inside the second through hole. A crank 307 is fixedly provided at the end of the motor shaft of the third motor 306. A reciprocating connecting rod 308 is provided at the outer end of the crank 307. The outer end of the reciprocating connecting rod 308 is movably hinged to one end of the double-headed swing arm 304. The double-headed swing arm 304, driven connecting rod 305 and other components in the reciprocating mechanism drive the rectangular slide plate 300 to move under the drive of the third motor 306.

[0024] The working principle of this embodiment is as follows: In the cotton stalk pulling, impurity removal and sorting operation, all components of the whole set of equipment work closely together and operate in an orderly manner, while the adjustment mechanism and reciprocating mechanism, as key parts, play an indispensable role. The adjustment mechanism consists of a limiting swing arm 202 and an electric telescopic cylinder 203, whose precise control lays the foundation for cotton stalk conveying. When the electric telescopic cylinder 203 is activated, the telescopic rod extends or retracts smoothly like a mechanical arm, driving the connected L-shaped connecting plate 204 and the limiting pin 205 to perform horizontal translational movement. The limiting pin 205 is cleverly inserted into the elliptical pin hole at the outer end of the limiting swing arm 202. The two cooperate with each other to form a unique limiting constraint mechanism. As the limiting pin 205 moves, guided by the elliptical pin hole, the limiting swing arm 202 slowly rotates around the fixed point, thereby driving the swing shaft 201 and the tilting plate 200 to make precise adjustment of the tilt angle, so that the tilting plate 200 is at the most suitable angle for cotton stalk conveying, ensuring that the cotton stalk can smoothly slide from the pulling roller 207 onto the conveyor belt 104. The reciprocating mechanism consists of a double-headed swing arm 304, a driven connecting rod 305, a reciprocating shaft 303, a third motor 306, a crank 307, and a reciprocating connecting rod 308 working together to provide continuous power for the impurity removal process. When the third motor 306 is powered on, its motor shaft acts like a powerful heart, driving the fixed crank 307 to rotate at a constant speed around the axis. The crank 307 and the reciprocating connecting rod 308 form a classic crank-connecting rod structure. As the crank 307 rotates, one end of the reciprocating connecting rod 308 makes a circular motion around the end of the crank 307, while the other end drives the double-headed swing arm 304 to swing back and forth along the reciprocating shaft 303. The double-headed swing arm 304 is like agile arms, connected to the rectangular slide plate 300 through a pair of driven connecting rods 305. As the double-headed swing arm 304 swings, the driven connecting rods 305 push and pull the rectangular slide plate 300, causing it to slide alternately along the rectangular sliding holes on the trapezoidal side plate 100, thereby driving the impurity removal vibration plate 301 to generate high-frequency vibration. In terms of power transmission, after the first motor 105 starts, its motor shaft generates power, which drives several conveyor shafts 102 to start rotating, thereby causing several conveyor sprockets 103 fixedly mounted on the conveyor shafts 102 to operate synchronously, and several conveyor belts 104 meshing with them also rotate, forming a continuous conveying channel. When the second motor 209 is turned on, its downward-facing motor shaft drives the drive sprocket to rotate synchronously. The drive sprocket transmits power to a pair of driven sprockets on the same side through the first triangular chain belt 210, which drives the fixed shaft 206 to rotate. The stalk pulling rollers 207 at the top of each fixed shaft 206 and the transmission gears 208 meshing with each other at the bottom work together to achieve relative rotation of each pair of stalk pulling rollers 207. When the tractor pulls the device into the cotton stalk field to start working, the three pairs of stalk-pulling rollers 207 move forward with the tractor. Under the relative prying force of each pair of stalk-pulling rollers 207, the cotton stalks are firmly grasped and pulled out of the soil. The pulled-out cotton stalks are conveyed backward along the inclined surface of the inclined plate 200 to several conveyor belts 104. The conveyor belts 104 continue to operate, driving the cotton stalks backward. When the cotton stalks pass above a pair of rectangular sliding plates 300, several impurity removal vibrating plates 301 in a high-frequency vibration state come into full contact with the cotton stalks. Through strong vibration, the soil and other impurities attached to the cotton stalks are completely knocked off. These impurities fall into the farmland along the connecting horizontal plate 101, while the cotton stalks that have completed the impurity removal continue to move forward on the conveyor belts 104, waiting for subsequent processing, thus efficiently completing the cotton stalk pulling, impurity removal, and sorting work.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cotton stalk pulling, impurity removal, and sorting device, comprising a pair of trapezoidal side plates (100), the pair of trapezoidal side plates (100) being fixedly mounted on a tractor, and a plurality of equidistantly distributed connecting horizontal plates (101) being fixed between the bottoms of the pair of trapezoidal side plates (100), and a plurality of equidistantly distributed conveyor belts (104) being provided above the plurality of connecting horizontal plates (101), characterized in that: A swing shaft (201) is rotatably inserted between the lower left corners of a pair of trapezoidal side plates (100). An inclined plate (200) is fixedly installed in the middle section of the swing shaft (201). Three pairs of fixed shafts (206) are rotatably inserted at the bottom of the outer side of the inclined plate (200). Each fixed shaft (206) is fitted with a concentrically fixed pulling roller (207) at its top end. The swing shaft (201) is connected to a pair of trapezoidal side plates (100) through an adjustment mechanism. Each trapezoidal side plate (100) has a rectangular sliding hole in the middle, and a pair of rectangular sliding plates (300) are provided between the middle of a pair of trapezoidal side plates (100). The front and rear ends of each rectangular sliding plate (300) are slidably inserted into the corresponding rectangular sliding hole. A fixing plate (302) is fixed on the front of the trapezoidal side plate (100). The fixing plate (302) is connected to a pair of rectangular sliding plates (300) through a reciprocating mechanism. Several equally spaced impurity removal vibration plates (301) are fixed on each rectangular sliding plate (300). Several impurity removal vibration plates (301) and several conveyor belts (104) are alternately distributed. The adjustment mechanism includes a limiting swing arm (202) and an electric telescopic cylinder (203). The limiting swing arm (202) is fixedly mounted at the front end of the swing shaft (201). An elliptical pin hole is opened at the outer end of the limiting swing arm (202). An electric telescopic cylinder (203) is fixedly mounted on the front of the trapezoidal side plate (100). An L-shaped connecting plate (204) is fixedly mounted at the end of the telescopic rod of the electric telescopic cylinder (203). A limiting pin (205) is fixedly mounted at the outer end of the L-shaped connecting plate (204). The outer end of the shaft (205) is slidably inserted into the elliptical pin hole; the reciprocating mechanism includes a double-headed swing arm (304) and a driven connecting rod (305). The reciprocating shaft (303) is rotatably inserted into the middle of the top surface of the fixed plate (302). The top end of the reciprocating shaft (303) is fixedly provided with a double-headed swing arm (304). The two ends of the double-headed swing arm (304) are provided with a pair of movably hinged driven connecting rods (305). The outer end of each driven connecting rod (305) is movably hinged to the rectangular sliding plate (300) on the same side. The front end of the fixed plate (302) is provided with a second through hole, and a third motor (306) with the output end facing upward is fixedly installed inside the second through hole. The motor shaft end of the third motor (306) is fixedly provided with a crank (307); the outer end of the crank (307) is provided with a reciprocating connecting rod (308) that is movably hinged, and the outer end of the reciprocating connecting rod (308) is movably hinged to one end of the double-headed swing arm (304).

2. The cotton stalk pulling, impurity removal, and sorting device according to claim 1, characterized in that: A plurality of equally spaced conveying shafts (102) are rotatably inserted between a pair of trapezoidal side plates (100). A plurality of equally spaced conveying sprockets (103) are fixedly fitted on each of the conveying shafts (102). Each of the conveying chains (104) is fitted on the corresponding conveying sprockets (103).

3. The cotton stalk pulling, impurity removal, and sorting device according to claim 2, characterized in that: A first motor (105) is fixedly installed at the upper right corner of the front of the trapezoidal side plate (100). The end of the motor shaft of the first motor (105) is fixedly connected to the front end of the conveyor shaft (102) located on the far right.

4. The cotton stalk pulling, impurity removal, and sorting device according to claim 3, characterized in that: Each of the fixed shafts (206) is fitted with a concentrically fixed transmission gear (208) at its bottom end, and an adjacent pair of transmission gears (208) are meshed together; the bottom ends of the pair of fixed shafts (206) located on the front and rear sides and the pair of fixed shafts (206) in the middle extend downward and are fitted with concentrically fixed driven sprockets.

5. The cotton stalk pulling, impurity removal, and sorting device according to claim 4, characterized in that: The inclined plate (200) has a first through hole on the front side of its bottom surface. A second motor (209) with its output end facing downward is fixedly installed inside the first through hole. The motor shaft end of the second motor (209) is fitted with a concentrically fixed drive sprocket. The drive sprocket is synchronously meshed and driven by a pair of driven sprockets on the same side through a first triangular chain belt (210).

6. The cotton stalk pulling, impurity removal, and sorting device according to claim 5, characterized in that: The bottom rear side of the inclined plate (200) is provided with a rotatably connected linkage shaft (211). The bottom end of the linkage shaft (211) is fitted with a concentrically fixed linkage sprocket. The linkage sprocket is synchronously meshed and driven by a pair of driven sprockets on the same side through a second triangular chain belt (212).

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