Header row control mechanism of corn harvester

Abstract

An ear picking roller plate is arranged on a horizontal rail in a horizontal sliding mode, an alignment debugging assembly of the ear picking roller plate comprises a driving mechanism, a left visual sensor and a right visual sensor, and the left visual sensor and the right visual sensor are arranged at the positions, on the two sides of a feeding channel, of the front portion of the ear picking roller plate respectively. The driving mechanism is arranged behind the snapping roll plate and is used for driving the snapping roll plate to perform horizontal position adjustment on the horizontal track; during use, the left visual sensor and the right visual sensor detect whether corn stalks exist in front or not, and when the left visual sensor or the right visual sensor detects that the corn stalks exist in front of the left visual sensor or the right visual sensor, a signal is fed back to enable the driving mechanism to work to move leftwards or rightwards. And after the feeding channel directly faces the corn stalks, the left visual sensor or the right visual sensor cannot detect the corn stalks, and then the driving mechanism is stopped. Stalks and the feeding channel are correspondingly input through adjustment, and stability of stalk cutting and cluster harvesting is guaranteed.

Description

Technical Field

[0001] This invention relates to an agricultural machinery device, and more specifically to a corn harvester header row alignment mechanism. Background Technology

[0002] The existing corn harvester uses a cutting and picking structure where, after the corn stalks are fed into the feed channel, the cutting rollers below chop the stalks and drag them downwards. The ears then detach from the chopped stalks and fall onto the picking rollers, and are then conveyed to the subsequent collection mechanism. The cutting and picking structure has several picking units arranged in parallel, with a fixed row spacing for each unit. This limits its adaptability to different corn planting row spacing scenarios. Although the picking units can guide the corn stalks through the guide opening at the front, the tilted corn stalks may affect the stable conveying, stalk cutting, and ear picking and collection in subsequent processes. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a corn harvester header alignment mechanism, which uses a front vision sensor to detect the position of the corn stalks and then adjusts the position of the ear-picking roller to complete the alignment of the stalks with the feed channel.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a corn harvester header alignment mechanism, comprising a picking roller plate, wherein a feeding channel for stalks is formed in the middle of the picking roller plate, and cutting rollers for cutting stalks are arranged on both sides of the feeding channel below the picking roller plate. As the stalks enter the feeding channel and move towards the output end, the pair of cutting rollers rotate to drag the stalks downwards and continuously cut them. When the ears on the stalks descend to the picking roller plate, they are blocked and output to the output end. The picking roller plate is horizontally slidable on a horizontal track. The mechanism also includes a row alignment adjustment component, which includes a drive mechanism and a left vision sensor. The device includes a left and right vision sensor. A left and right vision sensor are respectively installed on both sides of the feed channel at the front of the picking roller plate. A drive mechanism is located behind the picking roller plate to drive it to adjust its horizontal position on a horizontal track. During use, the left and right vision sensors detect the presence of corn stalks in front. When either the left or right vision sensor detects a corn stalk, it sends a feedback signal to the drive mechanism to move the picking roller plate to the left or right until the feed channel is directly opposite the corn stalk, at which point neither the left nor right vision sensor detects a corn stalk, and the drive mechanism stops.

[0005] As an improvement, the method of using the header mechanism of a corn harvester includes: S1: The drive unit moves toward the planted corn, and the left and right vision sensors detect whether there are corn stalks in front of it; S2: When the left or right visual sensor detects a corn stalk in front of it, the feedback signal causes the drive mechanism to move the ear-picking roller plate to the left or right. S3: After the ear-picking roller moves to the feeding channel and is directly in front of the corn stalk, neither the left nor the right vision sensor can detect the corn stalk, and thus a feedback signal is sent to stop the drive mechanism. S4: As the process continues, the corn stalks are fed directly into the feed channel.

[0006] As an improvement, the drive mechanism includes a drive motor, a drive gear, and a drive rack. The drive rack is horizontally set on the picking roller plate. The drive motor is connected to the drive gear, and the drive gear meshes with the drive rack for transmission. When the drive motor starts, it rotates forward or backward, thereby driving the picking roller plate to move to the left or right.

[0007] As an improvement, the picking rollers are arranged in multiple sets at intervals on a horizontal track, and the horizontal position of the multiple sets of picking rollers is adjusted by their respective row adjustment components.

[0008] As an improvement, a telescopic cutting assembly is also included. The telescopic cutting assembly includes a cutting blade, a first force sensor, and a second force sensor. The ear-picking roller plate includes an upper plate and a lower plate arranged vertically. Several first force sensors are spaced upward along the conveying direction on both sides of the upper plate of the feeding channel. Several second force sensors are spaced upward along the conveying direction on both sides of the lower plate of the feeding channel. The positions of the first force sensors and the second force sensors correspond one-to-one vertically. The cutting blades are arranged in pairs between the upper plate and the cutting roller and can be telescopic to move towards the feeding channel. As the stalk enters the feeding channel and moves towards the output end, the stalk touches the second force sensor to detect the force value. When the first force sensor above the second force sensor detects the force value and the force value exceeds a predetermined value, the feedback signal drives the cutting blade to move towards the feeding channel once to cut the ear stalk and stalk.

[0009] As an improvement, the method of using the header mechanism of a corn harvester also includes: S5: The rotating cutting roller cuts the corn stalks and drags them downwards to continue cutting the stalks; S6: The second force sensor on the side detects the force value when the stem touches it, thus determining the position of the stem; S7: When the first force sensor above the second force sensor detects a force value and the force value exceeds a predetermined value, it is determined that the corn ear has come into contact with the first force sensor. The feedback signal drives the cutting blade to move into the feed channel once to cut the ear stalk and stem. S8: The cut ears of fruit are supported by the upper plate and output to the output end.

[0010] As an improvement, the cutting blade is located between the upper plate and the lower plate.

[0011] As an improvement, the cutting blade is driven to move by a telescopic power mechanism, which includes a cylinder, a linkage gear assembly, and an inclined push block. The cylinder is arranged in a front-to-back orientation, and the cylinder shaft, linkage gear assembly, and inclined push block are connected in sequence. When the cylinder reciprocates, it drives the inclined push block to move back and forth. The rear of the cutting blade is equipped with a push roller that cooperates with the inclined push block. The inclined surface of the inclined push block pushes the push roller toward the feed channel. The cutting blade is also connected to an elastic element. When the cutting blade is pushed out, the elastic element deforms and stores force. When the inclined push block returns to its original position, the cutting blade is quickly reset by the release of elastic force from the elastic element.

[0012] As an improvement, the linkage gear set includes a first rack, a gear, and a second rack. The first rack and the second rack are arranged in parallel and are meshed and driven by the gear. The first rack is connected to the cylinder shaft of the cylinder, and a slanted push block is provided on the second rack.

[0013] As an improvement, two sets of inclined push blocks are arranged on the second rack; two sets of elastic elements are arranged at the front and rear positions of the cutting blade; and rails or sliding grooves are provided on both sides of the cutting blade for reciprocating sliding engagement.

[0014] The beneficial effects of this invention are as follows: by detecting the position of the corn stalks through the front vision sensor, the position of the ear-picking roller is adjusted to complete the correspondence between the stalks and the feeding channel, so that the stalks are accurately and smoothly introduced into the feeding channel, ensuring the stability of stalk cutting and ear harvesting, and achieving highly efficient row-to-row harvesting with almost zero loss. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of the present invention.

[0016] Figure 2 This is a longitudinal cross-sectional view of the telescopic cutting assembly of the present invention.

[0017] Figure 3 This is a schematic diagram of the telescopic power mechanism of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of a picking roller in the prior art.

[0019] In the diagram: 1. Harvesting roller; 101. Upper plate; 102. Lower plate; 11. Feed channel; 12. Cutting roller; 2. Telescopic cutting assembly; 21. Cutting blade; 211. Push roller; 212. Elastic element; 22. First force sensor; 23. Second force sensor; 3. Telescopic power mechanism; 31. Cylinder; 32. Linkage gear assembly; 321. First rack; 322. Gear; 323. Second rack; 33. Inclined push block; 4. Horizontal track; 5. Alignment adjustment assembly; 51. Drive mechanism; 511. Drive motor; 512. Drive gear; 513. Drive rack; 52. Left vision sensor; 53. Right vision sensor. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 , 2 Figures 3 and 4 show specific embodiments of the header alignment mechanism of the corn harvester of the present invention. The figures only illustrate the mutual cooperation between the structures. The position and size ratio of the specific structures can be reasonably adjusted according to the actual product situation, and do not limit the scope of protection of the present invention.

[0022] The specific embodiment includes a picking roller plate 1, with a feeding channel 11 formed in the middle of the picking roller plate 1 for the stalks to enter. Cutting rollers 12 for cutting the stalks are arranged on both sides of the feeding channel 11 below the picking roller plate 1. As the stalks enter the feeding channel 11 and move towards the output end, the pair of cutting rollers 12 rotate to drag the stalks downwards and continuously cut them. When the ears of fruit on the stalks descend and reach the picking roller plate 1, they are blocked and output to the output end. The picking roller plate 1 is horizontally slidable on a horizontal track 4. It also includes a row adjustment assembly 5, which includes a drive mechanism 51, a left vision sensor 52, and a right vision sensor 53. The front part of the picking roller plate 1 is located at the feeding channel 1. A left vision sensor 52 and a right vision sensor 53 are respectively installed on both sides of the feeding channel 11. The drive mechanism 51 is located behind the ear-picking roller plate 1 to drive the ear-picking roller plate 1 to adjust its horizontal position on the horizontal track 4. When in use, the left vision sensor 52 and the right vision sensor 53 detect whether there is a corn stalk in front of them. When the left vision sensor 52 or the right vision sensor 53 detects that there is a corn stalk in front of it, the feedback signal causes the drive mechanism 51 to move the ear-picking roller plate 1 to the left or right until the feeding channel 11 is directly facing the corn stalk and neither the left vision sensor 52 nor the right vision sensor 53 can detect the corn stalk, and then the drive mechanism 51 stops.

[0023] The operating methods of the header row alignment mechanism of a corn harvester include: S1: The drive device moves toward the planted corn, and the left vision sensor 52 and the right vision sensor 53 detect whether there are corn stalks in front; S2: When the left visual sensor 52 or the right visual sensor 53 detects a corn stalk in front of itself, the feedback signal causes the drive mechanism 51 to move the ear-picking roller 1 to the left or right. S3: After the ear-picking roller plate 1 moves to the feeding channel 11 and is directly facing the corn stalk, neither the left vision sensor 52 nor the right vision sensor 53 can detect the corn stalk, and then a feedback signal is sent to stop the drive mechanism 51. S4: As the process continues, the corn stalks are directly fed into the feed channel 11.

[0024] In use, the user drives a corn harvester to the corresponding corn stalks. The front cutting and harvesting structure of the corn harvester has several parallel picking units. Each picking unit has a picking roller 1 as described above. The picking rollers 1 are arranged in multiple sets at intervals on a horizontal track 4. The horizontal position of the multiple sets of picking rollers 1 is adjusted by their respective row adjustment components 5. The picking units have a spacing between them that does not affect their left and right translation. This spacing can be specifically set according to the conventional corn planting intervals to allow each picking unit to move left and right to correspond to the corn stalks. The left vision sensor 52 and right vision sensor 53 at the front of the picking roller 1 detect the corn stalks in front. Taking the corn stalks as being to the right relative to the feeding channel 11 as an example, after the right vision sensor 53 detects the corn stalks, it sends a signal to start the drive mechanism 51, driving the picking roller 1 to move to the right. When the right vision sensor 53 no longer detects the corn stalks, it means that the corn stalks have moved to a position directly opposite the feeding channel 11. Then, the drive mechanism 51 stops, and the position of the picking roller 1 is fixed. Each picking roller 1 completes its own position adjustment, ensuring that the corn stalks covered by the picking roller 1 are accurately and smoothly fed into the feeding channel 11 during this operation, ensuring the stability of stalk cutting and ear harvesting. Similarly, taking the corn stalk as an example, if it is positioned to the left of the feed channel 11, after the left vision sensor 52 detects the corn stalk in front, it will send a signal to start the drive mechanism 51, driving the picking roller 1 to move to the left. This continues until the left vision sensor 52 no longer detects the corn stalk, indicating that the corn stalk has moved to a position directly opposite the feed channel 11. Then, the drive mechanism 51 stops, fixing the position of the picking roller 1. In practical applications, the spacing between planted corn plants will be consistent, and this spacing will not vary too much. Therefore, it can be ensured that the front of each picking roller 1 can correspond to the corn stalk for detection. Furthermore, the adjustment is basically a translation of each picking roller 1 in one direction, so there will be no interference between the picking rollers during adjustment. The above position adjustment can be completed in real time as the corn harvester approaches the corn stalk, resulting in high efficiency.

[0025] As an improved specific implementation, the drive mechanism 51 includes a drive motor 511, a drive gear 512 and a drive rack 513. The drive rack 513 is horizontally arranged on the ear-picking roller plate 1. The drive motor 511 is connected to the drive gear 512. The drive gear 512 meshes with the drive rack 513 for transmission. When the drive motor 511 starts, it rotates forward or reverses, thereby driving the ear-picking roller plate 1 to move to the left or right.

[0026] like Figure 1 As shown, the drive motor 511 can specifically be a servo motor, thereby precisely controlling the translation of the picking roller 1. Left or right movement can be flexibly achieved through forward or reverse rotation. Specifically, it is configured with a drive gear 512 and a drive rack 513 meshing transmission to ensure transmission stability and maintain accurate displacement distance during reciprocating motion. The picking roller 1 can be stably mounted on the equipment frame via a track structure for translational adjustment.

[0027] As an improved specific implementation, it also includes a telescopic cutting assembly 2, which includes a cutting blade 21, a first force sensor 22, and a second force sensor 23. The picking roller plate 1 includes an upper plate 101 and a lower plate 102 arranged vertically. The upper plate 101 has several first force sensors 22 spaced upwards along the conveying direction on both sides of the feeding channel 11. The lower plate 102 has several second force sensors 23 spaced upwards along the conveying direction towards the feeding channel 11 on both sides of the feeding channel 11. The positions of the force sensors 23 are aligned vertically. The cutting blades 21 are arranged in pairs between the upper plate 101 and the cutting roller 12 and can extend and retract to move towards the feed channel 11. As the stalk enters the feed channel 11 and moves towards the output end, the stalk touches the second force sensor 23 to detect the force value. When the first force sensor 22 above the second force sensor 23 detects the force value and the force value exceeds a predetermined value, the feedback signal drives the cutting blade 21 to move towards the feed channel 11 to cut the ear stalk and stalk.

[0028] The usage of the header row mechanism of a corn harvester also includes: S5: The rotating cutting roller 12 cuts the corn stalks and drags the stalks downwards to continue cutting the stalks; S6: The stem touches the second force sensor 23 on the side, detects the force value, and determines the position of the stem; S7: When the first force sensor 22 above the second force sensor 23 detects the force value and the force value exceeds the predetermined value, it is determined that the corn ear has come into contact with the first force sensor 22. The feedback signal drives the cutting blade 21 to move into the feed channel 11 once to cut the ear stalk and stem. S8: The cut ear of fruit is supported by the upper plate 101 and output to the output end.

[0029] Existing corn harvesters use a cutting and picking structure where, after the corn stalks are fed into the feed channel, a cutting roller below chops the stalks and drags them downwards. The ears then detach from the chopped stalks and fall onto the picking roller plate before being transported to subsequent collection mechanisms. However, this structure involves a forced pulling action on the stalks after the ears descend to the picking roller plate, which poses a risk of damage to the ears and affects harvest quality. Therefore, it is necessary to optimize the structure to protect the corn ears and reduce damage to the corn.

[0030] like Figure 1 , 2As shown, to address the squeezing damage to the ears caused by the forced pulling and separation of the ears and stalks, a retractable cutting blade 21 is installed to actively cut between the ears and stalks at appropriate times, thereby avoiding squeezing damage to the ears and ensuring ear quality. Firstly, several first force sensors 22 installed on the upper plate 101 can detect the force at each conveying position; simultaneously, several second force sensors 23 installed on the lower plate 102 can detect the presence of the stalk at each conveying position. When a first force sensor 22 detects a force exceeding a predetermined value at a certain location, and a corresponding second force sensor 23 detects the force, it indicates that the corn ear at that location is being pulled downwards. This triggers a feedback signal to activate the cutting blade 21, which moves towards the feed channel 11 to cut the ear stalk and stalk, achieving active cutting and separation of the ear stalk. This avoids continuous downward pulling of the corn ear, allowing the ear to separate from the stalk more smoothly and without damage. After the ears of corn separate from the stalks, they fall onto the upper plate 101 and continue to be transported to the output end. Subsequently, the first force sensor 22 detects the ears being transported backwards. Since the contact between these ears and the first force sensor 22 does not exceed a predetermined value, the telescopic cutting action is not triggered. On the other hand, due to the time difference between plant input and forward / backward transport, and the complexity of the plant, there may be accumulation of corn ears or scattered debris and stalks falling onto the upper plate 101. This may cause the instantaneous resistance force to exceed the predetermined value set by the first force sensor 22. In this case, the second force sensor 23... This configuration ensures that the aforementioned error will not trigger the telescopic cutting action. Even if the first force sensor 22 exceeds the predetermined value, the corresponding second force sensor 23 cannot detect the presence of a stalk causing contact and generating force. Since there is no stalk at that point, the detected force is not caused by the contact during corn-stalk separation, thus preventing the telescopic cutting action from being triggered. This ensures that during non-corn ear separation, the stalks in the entire feed channel 11 can be smoothly and continuously pulled down and cut by the cutting roller 12, reducing equipment wear and energy consumption caused by frequent cutting blade 21 movements. By setting multiple force sensors at intervals along the corn conveying direction, full coverage of the sensing function is achieved. Furthermore, the use of force sensors at both the top and side positions avoids misjudgments caused by the force generated when corn falls onto the upper plate 101 after harvesting, or by the force generated when fragmented stalks or debris fall onto the upper plate 101, improving the accuracy of the telescopic cutting.

[0031] As an improved specific implementation, the cutting blade 21 is located between the upper plate 101 and the lower plate 102.

[0032] like Figure 2As shown, the cutting blade 21 is positioned close to the upper plate 101, making the cutting position closer to the ear stalk, reducing stalk residue on the ear, and reducing the difficulty of subsequent ear processing. The lower plate 102 serves two purposes: it houses the second force sensor 23 and it blocks the lower cutting roller 12, effectively preventing crushed stalks or debris from the ground from contaminating or affecting the telescopic cutting assembly 2.

[0033] As an improved specific implementation, the cutting blade 21 is driven to move by a telescopic power mechanism 3. The telescopic power mechanism 3 includes a cylinder 31, a linkage gear group 32, and an inclined push block 33. The cylinder 31 is arranged in a front-to-back orientation. The cylinder shaft of the cylinder 31, the linkage gear group 32, and the inclined push block 33 are connected in sequence. When the cylinder 31 performs reciprocating motion, it drives the inclined push block 33 to move back and forth. The rear of the cutting blade 21 is provided with a push roller 211 that cooperates with the inclined push block 33. The inclined surface of the inclined push block 33 pushes the push roller 211 toward the feed channel 11. The cutting blade 21 is also connected to an elastic element 212. The elastic element 212 deforms and stores force when the cutting blade 21 is pushed out. When the inclined push block 33 is reset, the cutting blade 21 releases the elastic force by the elastic element 212 to quickly reset.

[0034] The linkage gear set 32 ​​includes a first rack 321, a gear 322, and a second rack 323. The first rack 321 and the second rack 323 are arranged in parallel and are meshed and driven by the gear 322. The first rack 321 is connected to the cylinder shaft of the cylinder 31, and the second rack 323 is provided with a slanted push block 33.

[0035] like Figure 1 As shown, the ear-picking roller plate 1 has a relatively long front-to-back length. However, in order to adapt to the current planting spacing of corn, its width is relatively small. Therefore, the setting of the telescopic power mechanism 3 needs to make reasonable use of the space in the front-to-back direction to avoid the problem of the small width.

[0036] like Figure 2 , 3As shown, utilizing the spatial advantage in the front-to-back direction, a cylinder 31 is set up to transmit power through the back-to-back movement of the cylinder shaft; the linkage gear assembly 32 is specifically configured as a first rack 321, a gear 322, and a second rack 323 meshing sequentially, wherein the gear 322 is rotated through a shaft structure, and the first rack 321 and the second rack 323 on both sides parallel to each other realize the reciprocating motion of the cylinder 31 on the inclined push block 33; the inclined surface of the inclined push block 33 pushes the push roller 211 perpendicular to the direction of movement of the inclined push block 33, thereby driving the cutting blade 21 out to complete the cutting action of the stem. When the inclined push block 33 is reset, the push roller 211 and the cutting blade 21 are not linked with the inclined push block 33, but are quickly reset by releasing the elastic force through the elastic element 212. The overall action is smooth and stable, and the cutting blade 21 does not have a rigid connection state. When the stem or debris in the feed channel 11 comes into contact with the cutting blades 21 on both sides, the cutting blade 21 has the flexibility to float back and forth, which can reduce the possibility of damage to the cutting blade 21.

[0037] As an improved specific implementation, the inclined push block 33 is arranged in two sets on the second rack 323; the elastic element 212 is arranged in two sets at the front and rear positions of the cutting blade 21; and the cutting blade 21 is provided with rails or sliding grooves on both sides for reciprocating sliding cooperation.

[0038] like Figure 3 As shown, the cutting blade 21 itself has a large span, and two sets of inclined push blocks 33 can be set at the front and rear positions to push the cutting blade 21, thereby improving the stability of the cutting blade 21 in pushing out and cutting; two sets of elastic elements 212 are set at the front and rear positions to elastically limit and reset the cutting blade 21, thereby improving the stability of the reciprocating motion of the cutting blade 21; a track or sliding groove is set to set the cutting blade 21, thereby improving the stability of the movement of the cutting blade 21.

[0039] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A header alignment mechanism for a corn harvester, comprising a picking roller plate (1), wherein a feeding channel (11) for stalks to enter is formed in the middle of the picking roller plate (1), and cutting rollers (12) for cutting stalks are arranged on both sides of the feeding channel (11) below the picking roller plate (1). During the process of the stalks entering the feeding channel (11) and moving towards the output end, the pair of cutting rollers (12) rotate to drag the stalks downwards and continuously cut the stalks. When the ears on the stalks descend to the picking roller plate (1), they are blocked and output to the output end; characterized in that: The picking roller plate (1) is horizontally slidable on the horizontal track (4), and also includes a row adjustment component (5). The row adjustment component (5) includes a drive mechanism (51), a left vision sensor (52), and a right vision sensor (53). The left vision sensor (52) and the right vision sensor (53) are respectively installed on both sides of the feed channel (11) at the front of the picking roller plate (1). The drive mechanism (51) is located at the rear of the picking roller plate (1) to drive the picking roller plate (1) on the horizontal track (4). The horizontal position is adjusted on the left and right vision sensors (52 and 53) when in use. When the left vision sensor (52) or the right vision sensor (53) detects whether there is a corn stalk in front of it, the feedback signal causes the drive mechanism (51) to move to the left or right to move the ear picking roller (1) until the feed channel (11) is directly facing the corn stalk and neither the left vision sensor (52) nor the right vision sensor (53) can detect the corn stalk, and then the drive mechanism (51) stops.

2. The corn harvester header alignment mechanism according to claim 1, characterized in that: The method of using the header alignment mechanism of the corn harvester includes: S1: The drive device moves toward the planted corn, and the left vision sensor (52) and right vision sensor (53) detect whether there are corn stalks in front; S2: When the left vision sensor (52) or the right vision sensor (53) detects that there is a corn stalk in front of it, the feedback signal causes the drive mechanism (51) to move to the left or right to move the ear picking roller (1). S3: After the picking roller (1) moves to the feeding channel (11) and faces the corn stalk, neither the left vision sensor (52) nor the right vision sensor (53) can detect the corn stalk, and then the feedback signal stops the drive mechanism (51). S4: As the process continues, the corn stalks are directly fed into the feed channel (11).

3. The header alignment mechanism for a corn harvester according to claim 2, characterized in that: The drive mechanism (51) includes a drive motor (511), a drive gear (512), and a drive rack (513). The drive rack (513) is horizontally arranged on the ear-picking roller plate (1). The drive motor (511) is connected to the drive gear (512). The drive gear (512) meshes with the drive rack (513) for transmission. When the drive motor (511) starts, it rotates forward or reverses, thereby driving the ear-picking roller plate (1) to move to the left or right.

4. The header alignment mechanism for a corn harvester according to claim 3, characterized in that: The picking rollers (1) are multiple sets arranged at intervals on the horizontal track (4), and the horizontal position of the multiple sets of picking rollers (1) is adjusted by their respective row adjustment components (5).

5. A corn harvester header alignment mechanism according to claim 2, 3, or 4, characterized in that: It also includes a telescopic cutting assembly (2), which includes a cutting blade (21), a first force sensor (22), and a second force sensor (23). The picking roller plate (1) includes an upper plate (101) and a lower plate (102) arranged vertically. The upper plate (101) has several first force sensors (22) spaced upward along the conveying direction on both sides of the feeding channel (11). The lower plate (102) has several second force sensors (23) spaced upward along the conveying direction towards the feeding channel (11) on both sides of the feeding channel (11). The first force sensors (22) and The positions of the second force sensor (23) are one-to-one correspondences between the upper and lower parts. The cutting blades (21) are arranged in pairs between the upper plate (101) and the cutting roller (12) and can be extended and retracted to move towards the feed channel (11). When the stalk enters the feed channel (11) and moves towards the output end, the stalk touches the second force sensor (23) to detect the force value. When the first force sensor (22) above the second force sensor (23) that detects the force value detects the force value and the force value exceeds the predetermined value, the feedback signal drives the cutting blade (21) to move towards the feed channel (11) once to cut the ear stalk and stalk.

6. The header alignment mechanism for a corn harvester according to claim 5, characterized in that: The method of using the header alignment mechanism of the corn harvester also includes: S5: The rotating cutting roller (12) cuts the corn stalk and drags the stalk downward to continue cutting the stalk; S6: The stem touches the second force sensor (23) on the side and detects the force value to determine the position of the stem; S7: When the first force sensor (22) above the second force sensor (23) that detects the force value detects the force value and the force value exceeds the predetermined value, it is determined that the corn ear has come into contact with the first force sensor (22), and the feedback signal drives the cutting blade (21) to move into the feed channel (11) once to cut the ear stalk and stem. S8: The cut ear of fruit is supported by the upper plate (101) and output to the output end.

7. The corn harvester header alignment mechanism according to claim 6, characterized in that: The cutting blade (21) is located between the upper plate (101) and the lower plate (102).

8. The header alignment mechanism for a corn harvester according to claim 6, characterized in that: The cutting blade (21) is driven to move by a telescopic power mechanism (3). The telescopic power mechanism (3) includes a cylinder (31), a linkage gear group (32), and an inclined push block (33). The cylinder (31) is arranged in a front-to-back orientation. The cylinder shaft of the cylinder (31), the linkage gear group (32), and the inclined push block (33) are connected in sequence. When the cylinder (31) is reciprocating, it drives the inclined push block (33) to move back and forth. The rear of the cutting blade (21) is provided with a push roller (211) that cooperates with the inclined push block (33). The inclined surface of the inclined push block (33) pushes the push roller (211) toward the feed channel (11). The cutting blade (21) is also connected to an elastic element (212). The elastic element (212) deforms and stores force when the cutting blade (21) is pushed out. When the inclined push block (33) is reset, the cutting blade (21) is quickly reset by the elastic force released by the elastic element (212).

9. The header alignment mechanism for a corn harvester according to claim 8, characterized in that: The linkage gear set (32) includes a first rack (321), a gear (322), and a second rack (323). The first rack (321) and the second rack (323) are arranged in parallel and mesh with each other through the gear (322). The first rack (321) is connected to the cylinder shaft of the cylinder (31), and the second rack (323) is provided with a slanted push block (33).

10. The header alignment mechanism for a corn harvester according to claim 9, characterized in that: Two sets of inclined push blocks (33) are arranged on the front and back of the second rack (323); two sets of elastic elements (212) are arranged at the front and back positions of the cutting blade (21); and tracks or sliding grooves are provided on both sides of the cutting blade (21) for reciprocating sliding cooperation.

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