A cross-shaping pre-compression feeding device for a round baler and method of use

Abstract

The present application belongs to the technical field of forage harvesting machinery equipment, and particularly relates to a transverse shaping and pre-pressing feeding device of a round baler. The transverse shaping and pre-pressing feeding device of the round baler comprises a frame, a material conveying assembly, a floating material shaping assembly, a two-stage pre-pressing assembly and a material monitoring sensor group. The main functional component of the floating material shaping assembly is a special-shaped material shaping plate. The main functional component of the two-stage pre-pressing assembly is a two-stage pre-pressing roller. The present application provides a transverse shaping and pre-pressing feeding device of a round baler. The device can be applied to the compacting and forming process of various silage and dry materials for large and small round balers, and different packaging strategies are adopted according to different material properties. In the packaging process, the material layer uniformity is improved through floating material shaping and two-stage pre-pressing, the blocking phenomenon during feeding is prevented, the bale uniformity is improved, and the bale density is increased.

Description

Technical Field

[0001] This invention belongs to the field of forage machinery and equipment, specifically relating to a transverse shaping and pre-compression feeding device for a round baler and its usage method. Background Technology

[0002] Bagged silage is a common storage method for forage, effectively extending the shelf life of bales and preserving their nutritional value. Bagged silage creates an anaerobic fermentation environment, allowing for thorough lactic acid fermentation and improving silage quality. This method produces silage with low crude fiber content, high digestibility, good palatability, and high animal feed intake. Compared to other silage methods, wrapped silage offers better sealing, significantly reducing mold loss, liquid loss, and feeding losses, thus preserving the silage's nutritional components and facilitating transportation and commercialization.

[0003] In agricultural production, the material handling during the feeding process of round balers is crucial. Traditional round baler feeding devices have many shortcomings, such as poor material shaping effect, difficulty in adapting to materials of different shapes and characteristics, resulting in unstable bale quality. The feeding process cannot precisely control the pre-pressure and feed rate of the material, easily causing material blockage or uneven feeding. Moreover, they lack effective identification and adaptive adjustment capabilities for material type and moisture content, further affecting operating efficiency and the final bale compactness and uniformity. These problems restrict the efficient application of round balers in agricultural production, necessitating a new type of transverse shaping and pre-compression feeding device to overcome these deficiencies and improve the overall performance of round balers. Summary of the Invention

[0004] In order to adopt different packaging strategies according to different material properties, and to improve the uniformity of the material layer during the packaging process by means of floating material forming and two-stage pre-compression, so as to prevent clogging during feeding, improve the uniformity of bundling, and increase the bundling density, the purpose of this invention is to provide a transverse shaping and pre-compression feeding device for round balers. This device has the advantages of simple structure and ingenious design, and can be applied to different types of materials. It can complete the pre-feeding shaping and pre-compression work of round balers under different operating requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transverse shaping and pre-compression feeding device for a round bundler is characterized by comprising a frame, a material conveying assembly, a floating material forming assembly, a secondary pre-compression assembly, and a material monitoring sensor group; the frame includes a front support frame, a main profile frame, side plates, and a top plate; the material conveying assembly includes a main support roller, a tensioning wheel, a lower support roller, a support roller slider, a support roller slide, and a conveyor belt; the floating material forming assembly includes a shaped floating material forming plate, a front support rod for the material forming plate, a rear support rod for the material forming plate, and a material forming plate adjustment motor; the secondary pre-compression assembly includes a secondary pre-compression roller, a pre-compression roller support rod group, and a pre-compression roller adjustment motor; and the material monitoring sensor group includes a material identification sensor, a material sensing sensor, a spring force sensor, and a depth measurement sensor. The side plate is fixed to the side of the main profile frame. There are three main support rollers, which are installed at the bottom of the side plate via bearings. The top plate is composed of a front top plate and a rear top plate. The front top plate is C-shaped to provide space for the movement of the floating material assembly and can also be used as an observation window. The rear top plate is rectangular. There are two support roller slides, which are fixed to the rear side of the main profile frame and are equipped with two support roller sliders. The lower support roller is installed on the two support roller sliders via bearings. When the support roller sliders move up and down synchronously, the height of the lower support roller can be adjusted. The tension wheel is connected between the main support rollers of the side plate. In the working state, it is locked with a baffle. In the unlocked state, the tension wheel connecting arm can be rotated to adjust the position of the tension wheel, thereby adjusting the tension force. The conveyor belt is supported by the main support rollers and the lower support rollers. In the side view, it is a quadrilateral. The horizontal plane above the quadrilateral is supported by the main support rollers. The angle of the rear inclined feeding surface is controlled by adjusting the lower support rollers. The included angle of the two inclined planes below can reflect the tension of the conveyor belt. The floating material-forming component includes an irregularly shaped floating material-forming plate composed of multiple curved and flat surfaces. It can be divided into a front arc-shaped curved surface, a bottom arc-shaped surface combined with a flat surface, and two side connecting planes. A hole is drilled in the middle of the front arc-shaped curved surface to serve as a mounting hole for a material sensing sensor. A plate-shaped lifting lug is machined at the end of the bottom arc-shaped surface combined with a flat surface, forming a rotating pair with the lower cylindrical protrusion of the rear support rod of the material-forming plate. The upper end of the rear support rod of the material-forming plate forms a rotating pair with the top plate in the same manner. Holes are drilled in the side connecting planes, forming a rotating pair with the lower cylindrical protrusion of the front support rod of the material-forming plate. The upper end of the front support rod of the material-forming plate forms a rotating pair with the top plate in the same manner. The transverse connecting part in the middle of the front support rod of the material-forming plate is connected by an elastic component, allowing the left and right rods to rotate to different angles, and also limiting the angle difference within a controllable range. The secondary preloading assembly includes a preloading roller support rod group consisting of an upper connecting rod and a lower connecting rod; the upper section of the upper connecting rod is connected to the rectangular top plate to form a rotating joint, and the lower section is connected to the upper end of the lower connecting rod to form a rotating joint; the lower sections on both sides of the lower connecting rod form rotating joints with the secondary preloading roller. The irregularly shaped floating material plate is composed of multiple planes and curved surfaces, which can be divided into a front arc-shaped curved surface, a bottom arc-plane combined irregularly shaped surface, and two side connecting planes. Above the front arc-shaped curved surface is a material detection area, where a material sensing sensor, of the proximity switch type, is installed. Below the front arc-shaped curved surface, the front shape is an equation-fitted surface, formed by fitting the pressure-time curve during material compression. A circular hole is drilled at the bottom of the front arc-shaped curved surface to prevent clogging. A coating is added to the side of the irregularly shaped floating material plate that contacts the material to reduce drag and prevent sticking. The lower middle shape is an equation-fitted surface, formed by fitting the pressure-time curve during material rebound, and by reserving space for material rebound, it prevents clogging. The lower rear is a flat plate that helps maintain the shape of the material. The rear is connected to the top plate via a spring force sensor, which records the pressure in real time. A secondary pre-compression roller is installed behind the floating irregular-shaped material plate to achieve secondary shaping and pre-compression during the operation. The secondary pre-compression roller is decorated with a herringbone pattern to achieve forced feeding. In this step, the pre-compression roller adjustment motor is adjusted according to the pressure data feedback, and the pre-compression height is adjusted by driving the pre-compression roller material rod group to rotate.

[0006] The rear of the frame is equipped with a support roller slider and a support roller slide table, which can adjust the position of the last stage feed roller, thereby adjusting the feed point and feed angle; Material identification sensors, material sensing sensors, and spring force sensors can acquire physical property parameters such as material type and humidity to adjust the feeding strategy; at different feeding stages, the positions of the irregular floating material plate and the secondary pre-compression roller can be adaptively adjusted to adjust the pre-pressure; a depth measurement sensor is installed between the irregular floating material plate and the secondary pre-compression roller to monitor the feeding amount in real time; The method includes the following steps: Before starting the operation, install the frame, including the front support frame, main profile frame, side plates, and top plate; install the material conveying components, install the main support roller on the lower part of the side plate through bearings, and install the tension wheel, lower support roller, support roller slider, support roller slide, and conveyor belt; Adjust the height of the lower support roller to change the angle of the inclined feeding surface behind the conveyor belt; Connect the irregular floating material plate to the front support rod, rear support rod, and adjusting motor of the material plate, and adjust its initial position. Install the secondary pre-compression roller and pre-compression roller support rod assembly, and adjusting motor of the pre-compression roller, and adjust its initial position. Install and debug the material identification sensor, material sensing sensor, spring force sensor, and depth measurement sensor. The material is fed upward along the conveyor belt through the pre-loading device, and the material is limited by the side plate to prevent it from shifting laterally or scattering during the conveying process. The irregularly shaped floating material plate shapes and pre-compresses the material. The curved surface can guide the material to undergo initial shaping based on its initial shape and flow characteristics. When the material is piled up with higher sides and lower middle, the adjusting motor of the material plate drives the front support rod of the material plate connected to it to lift up, causing the front part of the material plate to rise at a certain angle; the rear support rod of the material plate is in a follow-up state at this time, its lower end can rotate around its mounting axis, and its upper end is passively adjusted in angle according to the posture of the material plate through a hinge connection; at this time, the front arc surface of the irregular material plate will first contact the higher parts of the material on both sides, so that the two sides of the arc surface apply appropriate pressure to the two sides of the material and squeeze it towards the middle, pushing the excess part of the material on both sides along the arc surface of the material plate to fill the middle, gradually making the material pile height tend to be uniform, and completing the initial shaping; For a material accumulation pattern that is low on both sides and high in the middle, the material plate adjustment motor drives the front support rod of the material plate connected to it to rotate around its mounting axis and lower it; at the same time, the material plate control motor connected to the rear support rod of the material plate drives the rear support rod to rotate around its mounting axis and raise it; at this time, the material plate is pressed down at a certain angle, so that the middle part of the front arc-shaped surface contacts the middle high part of the material and applies a certain pressure. At the same time, the two sides generate a component force to the sides due to the change of the angle of the material plate, which disperses and flattens the material that is too high in the middle to the sides. The middle material flows to the sides along the arc surface of the material plate, improving the accumulation shape of the material and performing preliminary shaping; The material is in a state where one side is lower than the other. Based on the sensor information, the material plate will tilt the material plate at a certain angle by rotating the front and rear support rods at different angles. At this time, the arc-shaped surface contacts the higher part of the material and applies pressure. In the process of pushing the material to the lower side, the tilt angle of the material plate and the shape of the arc-shaped surface guide the material to evenly fill the higher part of the material to the lower side, completing the initial shaping. The secondary pre-compression roller further shapes and pre-compresses the material, improving its compactness and forming quality, making it more suitable for the subsequent bundling process of the round baler. Depending on the required pre-compression degree, the motor can be adjusted via the pre-compression roller to set constant pre-compression stress, constant pre-compression displacement, and other working programs before the overall feeding operation begins. If it is necessary to increase the feeding friction, a power supply can be added to the pre-compression roller. The material monitoring sensor array monitors material information in real time, while the material sensing sensor senses changes in the material's state at various locations, including its stacking height, velocity, and contact pressure with various components. The spring force sensor precisely measures the spring force on the irregularly shaped floating material plate, indirectly reflecting the pressure exerted by the material on the plate. The depth measurement sensor closely monitors the material feed rate between the irregularly shaped floating material plate and the secondary pre-compression roller; based on the monitoring data, the position and pre-pressure of the irregularly shaped floating material plate and the secondary pre-compression roller are adjusted; this process is repeated until the feeding operation is complete, and all components return to their initial state.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention uses an irregularly shaped floating material forming plate, which can adaptively adjust according to the shape and flow characteristics of the material. It is innovative in terms of process, simple in structure, and can meet the shaping needs of materials in different states. 2. The position and pre-pressure of the irregularly shaped floating material plate and the secondary pre-compression roller are adaptively adjusted at different feeding stages. This ensures that appropriate pressure is applied for different material characteristics, avoiding insufficient pressure that leads to insufficient material compaction, and preventing excessive pressure that could damage the material or equipment, thus improving the accuracy and effectiveness of pre-compression; 3. In the material conveying assembly, the height of the lower support roller is adjusted by the synchronous up-and-down movement of the support roller slider, which precisely adjusts the feeding point and feeding angle. Combined with the real-time monitoring of the feeding amount by the depth measurement sensor, it can effectively prevent material blockage or uneven feeding. Compared with the existing technology, it can improve the overall material conveying efficiency and working reliability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of the transverse shaping and pre-compression feeding device for a round baler according to the present invention; Figure 2 This is a schematic diagram illustrating the operation of the transverse shaping and pre-compression feeding device for the round baler according to the present invention in conjunction with the round baler; Figure 3 This is a schematic diagram of the material conveying assembly, floating material consolidation assembly, and material monitoring sensor group of the present invention; Figure 4 This is a schematic diagram showing the lower support roller in the material conveying assembly at its upper limit position. Figure 5 This is a schematic diagram showing the lower support roller in the material conveying assembly at its lower limit position. Figure 6 This is a schematic diagram of the irregularly shaped floating material plate. Figure 7 This is a schematic diagram of the structure driven by the floating material assembly and the secondary pre-compression assembly.

[0009] In the figure, the attached figures are labeled as follows: Detailed Implementation The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] like Figure 1As shown, the transverse shaping and pre-compression feeding device of the round bundler includes a frame 1, a material conveying assembly 2, a floating material forming assembly 3, a secondary pre-compression assembly 4, and a material monitoring sensor group 5; the frame 1 includes a front support frame 101, a main profile frame 102, side plates 103, and a top plate 104; the material conveying assembly 2 includes a main support roller 201, a tensioning wheel 202, a lower support roller 203, a support roller slider 204, a support roller slide 205, and a conveyor belt 206; the floating material forming assembly 3 includes a shaped floating material forming plate 301, a front support rod 302 for the material forming plate, a rear support rod 303 for the material forming plate, and a material forming plate adjustment motor 304; the secondary pre-compression assembly 4 includes a secondary pre-compression roller 401, a pre-compression roller support rod group 402, and a pre-compression roller adjustment motor 403; the material monitoring sensor group 5 It includes a material identification sensor 501, a material sensing sensor 502, a spring force sensor 503, and a depth measurement sensor 504; the side plate 103 is fixed to the side of the main profile frame 102, and there are three main support rollers 201, which are installed on the lower part of the side plate 103 through bearings; the top plate 104 is composed of a front top plate and a rear top plate. The front top plate is C-shaped to leave space for the movement of the floating material component 3, and can also be used as an observation window. The rear top plate is rectangular; preferably, the top plate 104 is made of stainless steel with good corrosion resistance and sufficient strength to support the installation of the lower device. like Figure 2 As shown, the material identification sensor 501, material sensing sensor 502, and spring force sensor 503 can acquire physical property parameters such as material type and humidity, and adjust the feeding strategy. At different feeding stages, the positions of the irregular floating material plate 301 and the secondary pre-compression roller 401 can be adaptively adjusted to adjust the pre-pressure. A depth measurement sensor 504 is set between the irregular floating material plate 301 and the secondary pre-compression roller 401 to monitor the feeding amount in real time. like Figure 3 , 6 As shown, the floating material-forming component 3 includes an irregularly shaped floating material-forming plate 301 composed of multiple curved and flat surfaces. It can be divided into a front arc-shaped curved surface, a bottom arc-shaped surface-flat combined irregularly shaped surface, and two side connecting planes. A hole is drilled in the middle of the front arc-shaped curved surface to serve as a mounting hole for the material sensing sensor 502. A plate-shaped lifting lug is machined at the end of the bottom arc-shaped surface-flat combined irregularly shaped surface, forming a rotating pair with the lower cylindrical protrusion of the rear support rod 303 of the material-forming plate. The upper end of the rear support rod 303 forms a rotating pair with the top plate 104 in the same manner. Holes are drilled in the side connecting planes, forming a rotating pair with the lower cylindrical protrusion of the front support rod 302 of the material-forming plate. The upper end of the front support rod 302 forms a rotating pair with the top plate 104 in the same manner. like Figure 3 As shown, the secondary pre-compression assembly 4 includes a pre-compression roller support rod group 402 divided into an upper connecting rod and a lower connecting rod. The upper section of the upper connecting rod is connected to the rectangular top plate to form a rotating joint, and the lower section is connected to the upper end of the lower connecting rod to form a rotating joint. The lower sections on both sides of the lower connecting rod are connected to the secondary pre-compression roller 401 to form a rotating joint. The secondary pre-compression roller 401 is installed behind the floating irregular-shaped material forming plate 301 to achieve secondary shaping and pre-compression during operation. The secondary pre-compression roller 401 is provided with a herringbone pattern to achieve forced feeding. like Figure 4 , 5 As shown, there are two support roller slides 205, which are fixed to the rear side of the main profile frame 102, and two support roller sliders 204 are matched with them. The lower support roller 203 is mounted on the two support roller sliders 204 through bearings. When the support roller sliders 204 move up and down synchronously, the height of the lower support roller 203 can be adjusted. The tension wheel 202 is connected between the main support roller 201 of the side plate 103. In the working state, it is locked with a baffle. In the unlocked state, the tension wheel connecting arm can be rotated to adjust the position of the tension wheel 202, thereby adjusting the tension force. The conveyor belt 206 is supported by the main support roller 201 and the lower support roller 203. The horizontal plane above the quadrilateral is supported by the main support roller 201. The angle of the rear inclined feeding surface is controlled by adjusting the lower support roller 203. The included angle of the two inclined planes below can reflect the tension of the conveyor belt. Frame 1 The rear is equipped with a support roller slider 204 and a support roller slide table 205, which can adjust the position of the last stage feeding roller, thereby adjusting the feeding point and feeding angle; like Figure 1 , 6 As shown, the irregularly shaped floating material plate 301 is composed of multiple planes and curved surfaces, which can be divided into a front arc-shaped curved surface, a bottom arc-plane combined irregularly shaped surface, and two side connecting planes; the upper part of the front arc-shaped curved surface is a material detection area, where a material sensing sensor 502 is installed, which is a proximity switch type sensor; the lower part of the front arc-shaped curved surface has an equation fitting surface, the shape of which is formed by fitting the pressure-time curve during material compression; the bottom of the front arc-shaped curved surface has a circular hole for anti-clogging; a coating is added to the side of the irregularly shaped floating material plate 301 that contacts the material for drag reduction and anti-sticking; the lower middle part has an equation fitting surface, which is formed by fitting the pressure-time curve during material rebound, and by reserving space for material rebound, it plays an anti-clogging role; the lower rear part is a flat plate, which plays a role in maintaining the shape of the material; the rear part is connected to the top plate 104 through a spring force sensor 503, and records the pressure in real time; preferably, a thin film pressure sensor can be installed on the front of the bottom arc-shaped surface 3012 to accurately return pressure data at each position; like Figure 7As shown, there are four material plate adjusting motors 304, which drive each rod in the front support rod 302 and the rear support rod 303 of the material plate respectively; the pre-pressure roller adjusting motor 403 drives the two long rods of the pre-pressure roller support rod group to rotate synchronously. The method includes the following steps: Before starting the S1 operation, install the frame 1, including the front support frame 101, the main profile frame 102, the side plate 103, and the top plate 104; install the material conveying assembly 2, install the main support roller 201 on the lower part of the side plate 103 through bearings, and install the tension wheel 202, the lower support roller 203, the support roller slider 204, the support roller slide 205, and the conveyor belt 206. S2 adjusts the height of the lower support roller 203 to change the angle of the rear inclined feeding surface of the conveyor belt 206; S3 connects the irregular floating material plate 301 to the front support rod 302, the rear support rod 303, and the adjusting motor 304 of the material plate, and adjusts their initial positions. It also installs the secondary pre-compression roller 401, the pre-compression roller support rod group 402, and the adjusting motor 403 of the pre-compression roller, and adjusts their initial positions. Finally, it installs and debugs the material identification sensor 501, the material sensing sensor 502, the spring force sensor 503, and the depth measurement sensor 504. S4 material is fed upward along the conveyor belt 206 through the pre-loading device, and the side plate 103 limits the material to prevent it from shifting laterally or scattering during the conveying process. The S5 material monitoring sensor group 5 monitors material information in real time. The material sensing sensor 502 senses the changes in the material's state at various locations in real time, including the material's accumulation height, speed, and contact pressure with various components. The spring force sensor 503 accurately measures the spring force on the irregularly shaped floating material plate 301, thereby indirectly reflecting the pressure of the material on the material plate. The depth measurement sensor 504 closely monitors the feeding amount of material between the irregularly shaped floating material plate 301 and the secondary pre-pressure roller 401; based on the above monitoring data, it adjusts the position and pre-pressure of the irregularly shaped floating material plate 301 and the secondary pre-pressure roller 401. The S6 irregular floating material plate 301 shapes and pre-compresses materials. The curved surface can guide the initial shaping of materials based on their initial shape and flow characteristics. When the material is piled up with higher sides and lower middle, the adjusting motor of the material plate drives the front support rod of the material plate connected to it to lift up, causing the front part of the material plate to rise at a certain angle; the rear support rod of the material plate is in a follow-up state at this time, its lower end can rotate around its mounting axis, and its upper end is passively adjusted in angle according to the posture of the material plate through a hinge connection; at this time, the front arc surface of the irregular material plate will first contact the higher parts of the material on both sides, so that the two sides of the arc surface apply appropriate pressure to the two sides of the material and squeeze it towards the middle, pushing the excess part of the material on both sides along the arc surface of the material plate to fill the middle, gradually making the material pile height tend to be uniform, and completing the initial shaping; For a material accumulation pattern that is low on both sides and high in the middle, the material plate adjustment motor drives the front support rod of the material plate connected to it to rotate around its mounting axis and lower it; at the same time, the material plate control motor connected to the rear support rod of the material plate drives the rear support rod to rotate around its mounting axis and raise it; at this time, the material plate is pressed down at a certain angle, so that the middle part of the front arc-shaped surface contacts the middle high part of the material and applies a certain pressure. At the same time, the two sides generate a component force to the sides due to the change of the angle of the material plate, which disperses and flattens the material that is too high in the middle to the sides. The middle material flows to the sides along the arc surface of the material plate, improving the accumulation shape of the material and performing preliminary shaping; The material is in a state where one side is lower than the other. Based on sensor information, the material plate will tilt upward or downward at a certain angle by varying the rotation amplitude of the front and rear support rods. The specific tilt angle depends on the degree of height difference between the two sides of the material; the greater the difference, the greater the tilt angle of the material plate. At this time, the curved surface contacts and applies pressure to the higher part of the material. In the process of pushing the material to the lower side, the tilt angle of the material plate and the shape of the curved surface guide the material to evenly fill the higher part of the material to the lower side, completing the initial shaping. The S7 secondary pre-compression roller 401 further shapes and pre-compresses the material, improving its compactness and forming quality, making it more suitable for the subsequent baling process of the round baler. Depending on the required pre-compression degree, the motor can be adjusted via the pre-compression roller to set constant pre-compression stress, constant pre-compression displacement, and other operating programs before the overall feeding operation begins. If increased feeding friction is required, a motor or a power roller can be used to provide additional power to the pre-compression roller. S8 repeats steps S4-S7 until the feeding operation is completed and all components return to their initial state.

[0011] Finally, it should be noted that the above is only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing specific embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features and structures are all within the spirit and scope of the various embodiments of the present invention.

Claims

1. A transverse shaping and pre-compression feeding device for a round baler, characterized in that: The device includes a frame (1), a material conveying assembly (2) located below the device, a floating material leveling assembly (3) located above the device, a secondary pre-compression assembly (4), and a material monitoring sensor group (5). The floating material leveling assembly (3) includes an irregularly shaped floating material leveling plate (301), a front support rod (302) for the material leveling plate, a rear support rod (303) for the material leveling plate, and a material leveling plate adjustment motor (304). The irregularly shaped floating material leveling plate (301) is composed of multiple curved surfaces and planes, and is divided into a front arc-shaped curved surface (3011), a bottom arc-plane combined irregularly shaped surface (3012), and two side connecting planes (3013). The front arc-shaped curved surface (3011) has a hole in the middle as a material sensing sensor. Mounting holes for the device (502); plate-shaped lifting lugs are machined at the end of the bottom arc-plane combined irregular surface (3012), forming a rotating pair with the cylindrical protrusion at the lower end of the back support rod (303) of the whole plate; the upper end of the back support rod (303) of the whole plate forms a rotating pair with the top plate (104) in the same way; holes are drilled in the connecting planes (3013) on both sides, forming a rotating pair with the cylindrical protrusion at the lower end of the front support rod (302) of the whole plate; the upper end of the front support rod (302) of the whole plate forms a rotating pair with the top plate (104) in the same way; the transverse connecting part in the middle of the front support rod (302) of the whole plate is connected by an elastic component, so that the left and right rods can rotate to different angles; Above the front curved surface (3011) is the material detection area, where a material sensing sensor (502) is installed; the front shape below the front curved surface (3011) is an equation-fitted surface, formed by a cubic polynomial fitting of pressure-time data points during the compression of silage corn; circular holes are drilled at the bottom of the front curved surface (3011) to prevent clogging, and the anti-clogging holes are arranged in a rectangular array, with the center of the outermost hole ≥15mm from the edge of the plate; a coating is added to the side of the irregular floating material plate (301) that contacts the material to reduce drag and prevent sticking; the shape of the lower middle part is an equation-fitted surface, formed by the pressure during the compression and rebound process of silage corn. - The logarithmic curve of time data points is fitted, and the material rebound space is reserved to prevent blockage; the lower rear part is a flat plate to maintain the shape of the material; the rear part is connected to the top plate (104) by setting a spring force sensor (503) and recording the pressure in real time; when the position needs to be adjusted, the material plate adjustment motor (304) drives the front support rod (302) of the material plate to rotate; when locking is required, the material plate adjustment motor (304) realizes the position locking function; the support roller slider (204) and support roller slide (205) are set at the rear of the frame (1), which can adjust the position of the last stage feeding roller, thereby adjusting the feeding point and feeding angle.

2. The transverse shaping and pre-compression feeding device for a round baler according to claim 1, characterized in that: The secondary pre-compression assembly (4) includes a secondary pre-compression roller (401), a pre-compression roller support rod group (402), and a pre-compression roller adjustment motor (403). The pre-compression roller support rod group (402) is divided into an upper connecting rod and a lower connecting rod. The upper section of the upper connecting rod is connected to the rectangular top plate to form a rotating pair, and the lower section is connected to the upper end of the lower connecting rod to form a rotating pair. The lower sections on both sides of the lower connecting rod are connected to the secondary pre-compression roller (401) to form a rotating pair. The secondary pre-compression roller (401) is set behind the irregular floating material plate (301) to realize secondary shaping pre-compression. The secondary pre-compression roller (401) is provided with a herringbone pattern. The secondary pre-compression roller (401) is connected to the driving device through the upper and lower connecting rods. The connecting rods maintain a stable rigid connection in the working state. The connecting rods are unlocked and enter the unlocked state. At this time, the cooperation between the upper and lower connecting rods becomes movable.

3. The transverse shaping and pre-compression feeding device for a round baler according to claim 1, characterized in that: The material conveying assembly (2) includes a main support roller (201), a tensioning wheel (202), a lower support roller (203), a support roller slider (204), a support roller slide (205), and a conveyor belt (206); there are three main support rollers (201), which are installed on the lower part of the side plate (103) by bearings; the top plate (104) is composed of two parts: a front top plate (1041) and a rear top plate (1042). The front top plate (1041) is C-shaped, leaving space for the movement of the floating material assembly (3). Between, the rear top plate (1042) is rectangular; there are two support roller slides (205), which are fixed to the rear side of the main profile frame (102), and there are two support roller sliders (204) matched with them; the lower support roller (203) is mounted on the two support roller sliders (204) through bearings, and when the support roller sliders (204) move up and down synchronously, the height of the lower support roller (203) is adjusted; the tension wheel (202) is connected between the main support rollers (201) of the side plate (103) and is used to adjust the tension.

4. The transverse shaping and pre-compression feeding device for a round baler according to claim 1, characterized in that: The material monitoring sensor group (5) includes a material identification sensor (501), a material sensing sensor (502), a spring force sensor (503), and a depth measurement sensor (504). The feeding strategy is adjusted by acquiring the material type, humidity, and physical property parameters. The positions of the irregular floating material plate (301) and the secondary pre-pressure roller (401) are adaptively adjusted at different feeding periods to adjust the pre-pressure. A depth measurement sensor (504) is set between the irregular floating material plate (301) and the secondary pre-pressure roller (401) to monitor the feeding amount in real time.

5. The method of using the transverse shaping and pre-compression feeding device for a round baler according to claim 1, characterized in that, Includes the following steps: S1. Before starting the operation, install the frame (1), material conveying assembly (2), floating material assembly (3), secondary pre-compression assembly (4) and material monitoring sensor group (5); adjust the height of the lower support roller (203) and change the angle of the rear inclined feeding surface of the conveyor belt (206); S2. The material is fed forward along the conveyor belt (206), and the material is limited by the side plate (103) to prevent it from shifting laterally or scattering during the conveying process. S3, Material monitoring sensor group (5) monitors material information in real time, material sensing sensor (502) senses material state changes in real time, including material stacking height, speed and contact pressure with each component, spring force sensor (503) accurately measures the spring force on the irregular floating material plate (301), thereby indirectly reflecting the pressure of the material on the material plate, depth measurement sensor (504) closely monitors the feeding amount of material between the irregular floating material plate (301) and the secondary pre-pressure roller (401); based on the monitoring data, adjust the position and pre-pressure of the irregular floating material plate (301) and the secondary pre-pressure roller (401); S4, the irregular floating material plate (301) shapes and pre-compresses the material. The curved surface can guide the material to perform initial shaping based on the initial shape and flow characteristics of the material. When the material is piled up with high sides and low middle, the front arc surface of the irregularly shaped material plate will first contact the higher parts of the material on both sides. The material plate adjustment motor (304) adjusts the irregularly shaped material plate slightly downward at a certain angle according to the collected information, so that the two sides of the arc surface apply appropriate pressure to the two sides of the material and squeeze it towards the middle, pushing the excess parts on both sides of the material towards the middle to fill it, gradually making the material pile height more uniform, and completing the initial shaping. When the material is piled up in a way that is low on both sides and high in the middle, the material adjustment motor (304) drives the irregular material plate to lift up a certain angle according to the collected information, so that the middle part of the front arc surface contacts the middle high part of the material and applies a certain pressure. At the same time, the two sides generate a component force to the sides due to the change of the angle of the irregular material plate, which disperses and flattens the material that is too high in the middle to the sides, improves the pile shape of the material, and performs preliminary shaping. When the material is in a state where one side is low and the other side is high, the material plate adjusting motor (304) adjusts the different rotation amplitudes of the front support rod and the rear support rod of the material plate according to the collected information, so that the material plate is tilted at a certain angle; at this time, the arc-shaped surface contacts the higher part of the material and applies pressure. In the process of pushing the material to the lower side, the tilt angle of the material plate and the shape of the arc-shaped surface guide the material to fill the higher part of the material evenly to the lower side, thus completing the initial shaping. S5, the secondary pre-compression roller (401) further shapes and pre-compresses the material to improve the compactness and forming quality of the material; S6. Repeat steps S2 to S5 until the feeding operation is completed and all components return to their initial state.

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