Wire feeding and knotting device of square bale collecting and bundling machine

Abstract

The utility model relates to the technical field of pasture processing equipment, in particular to a wire feeding and knotting device of a square bale collecting machine. Comprising a knotter assembly, a driving assembly and a large needle assembly, the knotter comprises a gear ring, an eagle beak, a rope clamping disc and a cutter arm, the main shaft is installed on a machine frame of the square bale collecting machine, and the main shaft is connected with the driving assembly; the large needle assembly comprises large needles and a U-shaped frame, the multiple large needles are installed on a cross beam of the U-shaped frame, and supporting legs of the U-shaped frame are installed on a rack of the straw bundle collecting and bundling machine and connected with the driving assembly through a rocker arm. The driving assembly drives the main shaft to rotate and drives the large needle to rotate towards the knotter through the rocker arm, the large needle drives the knotting rope to penetrate through the rope clamping disc, the gear ring and the eagle beak, and the rope clamping disc is matched with the tool arm to act to complete knotting operation. Needle threading and knotting actions are ensured to be strictly synchronous, a large needle assembly is ensured to accurately deliver a rope, and a knotter quickly completes knotting; and the knotting quality is high, and the knotted rope fastener is firm, reliable and free of loosening.

Description

Technical Field

[0001] This utility model relates to the technical field of forage processing equipment, specifically to a wire feeding and knotting device for a square hay bale baler. Background Technology

[0002] Currently, hay bales come in various forms, including small square bales, large square bales, and large round bales. Small square bales are suitable for small plots, while large square bales are better suited for large areas, facilitating collection and transportation. Large round bales have limited transport capacity and are not suitable for long-distance transport. Small square bales of hay are approximately 30-40 cm (width) × 40-50 cm (height) × 70-100 cm (length), with a single bale typically weighing 15-30 kg. Large square bales of hay are typically 1.1-2.2 meters long, 1.15 meters wide, and 0.8 meters high, with a single bale typically weighing 500-800 kg. Large square bale balers on the market are currently tractor-tethered and can automatically complete multiple operations such as picking up, chopping, pre-compressing, feeding, compressing, and baling of hay and straw in one pass. They offer advantages such as high automation, high efficiency, neat bale shape, tight baling, and convenient storage and transportation. However, the price is high, generally ranging from 1.38 million to 1.58 million yuan, and a manufacturer's tractor is also required, costing another 1 million yuan, bringing the total price to over 2 million yuan. This is too high for most farmers in China, and the subsequent maintenance costs are also excessive. Due to its high investment and long payback period, it has not been widely adopted in China. In China, small square bales are commonly made, with manual picking, stacking, and bundling. This not only results in low efficiency but also leads to a labor shortage as the workforce ages, causing labor costs to increase year by year.

[0003] Square bale balers collect, compress, and bundle small square bales into larger ones. Combined with grab buckets and lifting equipment, these larger bales can be directly loaded onto flatbed trucks for convenient transport. Only one person is needed to complete the picking and baling operation, making it significantly cheaper than large square bale balers. Currently, two-strand balers are in large-scale production in China, generally costing around 100,000 yuan after agricultural subsidies. With a large market share, simply equipping oneself with a square bale baler is sufficient to pick up, compress, and bundle small square bales into larger ones, eliminating the need to purchase a high-horsepower tractor; a two-strand tractor is sufficient, saving on tractor purchase costs, reducing manual picking time, and improving efficiency.

[0004] To transform small square bales into larger square bales, N small square bales need to be bundled together with knotting rope, and then the knotting rope is tied into a knot using a knotter and a large needle assembly. Therefore, developing a suitable thread feeding and knotting device for square bale balers, ensuring that the knotted ropes are strong, reliable, and do not come undone, and ensuring that the timing and rhythm of the large needle assembly's thread feeding and the return of the large needle after knotting are matched and consistent with the knotter's starting, rope clamping, knotting, and rope cutting movements, has become a pressing technical challenge in this field. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a wire feeding and knotting device for a square straw bale baler, which is suitable for square straw bale balers. It ensures that the needle threading and knotting actions are strictly synchronized, ensuring that the large needle assembly accurately delivers the rope and the knotter quickly completes the knotting. Moreover, the quality of the knot is high, and the knotted rope is firm, reliable, and does not come undone.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wire feeding and knotting device for a square bale baler includes a knotter assembly, a drive assembly, and a large needle assembly. The knotter assembly includes a main shaft and multiple knotters mounted on the main shaft. Each knotter includes a toothed ring, a beak, a rope clamping disc, and a cutter arm. The main shaft is mounted on the frame of the square bale baler and is connected to the drive assembly. The large needle assembly includes a large needle and a U-shaped frame. Multiple large needles are mounted on the crossbeam of the U-shaped frame, and the legs of the U-shaped frame are mounted on the frame of the square bale baler. The legs of the U-shaped frame are connected to the drive assembly via a rocker arm. The drive assembly drives the main shaft to rotate and, through the rocker arm, drives the large needles to rotate towards the knotters. The large needles, carrying the knotting rope, pass through the rope clamping disc. The toothed ring, beak, rope clamping disc, and cutter arm work together to complete the knotting operation.

[0008] Furthermore, the knotter includes a gear ring, a worm gear shaft, a frame, a rope clamping plate, a rope cleaning plate, a rope clamping disc, a beak, and a cutter arm; the gear ring is mounted on the main shaft and rotates with the main shaft, the worm gear shaft is mounted on the frame, and the worm wheel of the worm gear shaft meshes with the internal teeth of the gear ring; the rope clamping disc is provided with a rope clamping disc gear, which meshes with the worm wheel of the worm gear shaft, and the rope cleaning plate is mounted on the rotating shaft of the rope clamping disc; the rope clamping plate is hinged to the frame and located at the rope clamping disc; the beak is provided with a beak bevel gear, which meshes with the external teeth of the gear ring; the cutter arm is hinged to the frame, connected to the gear ring, and is provided with a cutter.

[0009] Furthermore, the gear ring and the frame are mounted on the main shaft, the gear ring rotates together with the main shaft, and the frame is fixed to the machine frame by bolts.

[0010] Furthermore, the drive assembly includes a motor, a drive sprocket, and a driven sprocket; the driven sprocket is mounted on the main shaft, the drive sprocket and the driven sprocket are connected by a chain, the drive sprocket is connected to the motor, and the motor drives the drive sprocket and the driven sprocket to rotate synchronously.

[0011] Furthermore, both ends of the rocker arm are provided with bushings, one bushing is fitted onto the main shaft, and the other bushing is fitted onto the U-shaped frame.

[0012] Furthermore, the top of the support leg of the large needle assembly U-shaped frame is provided with a first connecting shaft, the upper part of the support leg is provided with a second connecting shaft, the bushing of the rocker arm is sleeved on the second connecting shaft, and the first connecting shaft is installed on the bearing seat on the frame of the square straw bale baler.

[0013] Furthermore, the large needle includes a needle body, a lower seat, and an upper seat. The needle body is fixed to the lower seat, and the lower seat and the upper seat are fixed to the crossbeam of the U-shaped frame by bolts.

[0014] Furthermore, the knotter assembly also includes multiple bearing seats, multiple bearings are mounted on the main shaft, the bearings are installed in the bearing seats, and the bearing seats are fixed to the frame of the square straw bale baler.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model includes a knotter assembly, a drive assembly, and a large needle assembly. The knotter assembly and the large needle assembly are synchronously driven by the drive assembly. The drive assembly drives the main shaft to rotate and, through the rocker arm, drives the large needle to rotate towards the knotter. The large needle, carrying the knotted rope, passes through the rope clamping disc. The toothed ring, beak, rope clamping disc, and cutter arm work together to complete the knotting operation. This ensures that the starting thread feeding and the return time and rhythm of the large needle assembly after knotting are matched and consistent with the starting, rope clamping, knotting, and rope cutting movements of the knotter. It ensures strict synchronization between the needle threading and knotting actions, guarantees that the large needle assembly accurately delivers the rope, and that the knotter quickly completes the knotting; moreover, the knot quality is high, and the knotted knot is firm, reliable, and does not come undone.

[0017] 2. This utility model knot tying device includes a gear ring, a worm gear shaft, a frame, a rope clamping plate, a rope clearing plate, a rope clamping disc, a beak, and a cutter arm. When the large needle passes through the rope clamping disc, the disc clamps the knotting rope, and the beak begins to wrap around the two strands of the rope. Finally, the beak bites the knotting rope, and simultaneously the large needle begins its return motion. During the return motion, the knotting rope is clamped by the rope clamping disc, preparing for the next knotting. After the large needle leaves the knot tying device, the cutter arm begins to move, disengaging the rope knot from the beak. The beak then ties the knot, and simultaneously, the blade on the cutter arm cuts the two strands of rope, completing the knotting. The knot tying device has a simplified structure, facilitating processing, assembly, and maintenance. The components work together efficiently, resulting in high-quality knots. It has strong capabilities for simultaneous operation at multiple knotting points, a high success rate, higher reliability, greater adaptability, and lower overall cost.

[0018] 3. This utility model's large needle includes a needle body, a lower seat, and an upper seat. The needle body is fixedly connected to the lower seat, and the lower seat and upper seat are fixedly connected to the crossbeam of the U-shaped frame by bolts. The large needle is detachably mounted on the crossbeam of the U-shaped frame, facilitating assembly and maintenance.

[0019] 4. The knotter assembly of this utility model is mounted on the frame of the square straw bale baler through multiple bearing seats, ensuring stable operation.

[0020] 5. The rocker arm of this utility model is equipped with bushings at both ends. One bushing is fitted onto the main shaft, and the other bushing is fitted onto the U-shaped frame. This further enhances the coordination between the knotter assembly and the large needle assembly, and facilitates assembly and maintenance. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the knotter assembly of this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the knotter of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the knotter of this utility model from another angle.

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the gear ring of this utility model.

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the frame of this utility model.

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the blade arm of this utility model.

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the eagle's beak of this utility model.

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of the rope clamping disc of this utility model.

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the rope clamping piece of this utility model.

[0031] Figure 11 This is a three-dimensional structural diagram of the worm gear shaft of this utility model.

[0032] Figure 12 This is a schematic diagram of the rope-cleaning sheet structure of this utility model.

[0033] Figure 13 This is a schematic diagram of the three-dimensional structure of the large needle of this utility model.

[0034] Figure 14 This is a side view of the installation of this utility model.

[0035] Figure 15 The installation front view of this utility model.

[0036] The diagram shows the following components: 1. Knotter assembly; 2. Drive assembly; 3. Large needle assembly; 4. Rocker arm; 5. Connecting seat; 11. Main shaft; 12. Bearing seat; 13. Gear ring; 14. Worm gear shaft; 15. Frame; 16. Rope clamping plate; 17. Rope clearing plate; 18. Rope clamping disc; 19. Beak; 110. Knife arm; 111. Bushing body; 21. Motor; 22. Drive sprocket; 23. Driven sprocket; 24. Chain; 25. Tensioner; 31. Support leg; 32. Crossbeam; 33. First connecting shaft; 34. Second connecting shaft; 35. Needle body; 36. Lower seat; 37. Upper seat. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.

[0040] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0043] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0044] like Figure 1-15 As shown, a wire feeding and knotting device for a square straw bale baler includes a knotter assembly 1, a drive assembly 2, and a large needle assembly 3.

[0045] like Figure 2-12 As shown, the knotter assembly 1 includes a main shaft 11 and multiple knotters mounted on the main shaft 11. In this embodiment, there are four knotters. The knotter assembly 1 also includes multiple bearing seats 12. In this embodiment, there are four bearing seats 12. The four bearings are mounted on the main shaft 11 and are installed in the bearing seats 12. The bearing seats 12 are fixed to the frame of the square bale baler. The main shaft 11 is mounted on the frame of the square bale baler through the bearing seats 12, ensuring the stable operation of the entire device.

[0046] The knotter includes a gear ring 13, a worm gear shaft 14, a frame 15, a rope clamping plate 16, a rope cleaning plate 17, a rope clamping disc 18, an eagle beak 19, and a knife arm 110.

[0047] The frame 15 is equipped with a bushing 111. A gear ring 13 is mounted on the main shaft and connected to the end of the bushing 111. The bushing 111 is fitted onto the main shaft 11, thereby mounting the knotter onto the main shaft 11. The gear ring 13 is mounted on the main shaft, and a worm gear shaft 14 is mounted on the frame 15. One end of the worm gear shaft 14 is equipped with a bevel gear, and the other end is equipped with a worm wheel. The bevel gear of the worm gear shaft 14 meshes with the gear ring 13. A rope clamping disc 18 is equipped with a rope clamping disc gear, which meshes with the worm wheel of the worm gear shaft.

[0048] The rope clamping plate 17 is mounted on the rotating shaft of the rope clamping disc 18. The rope clamping plate 10 is hinged to the frame 15 and located at the rope clamping disc 18. The beak 19 is equipped with a beak bevel gear, which meshes with the gear ring 13. The cutter arm 110 is hinged to the frame 15, connected to the gear ring 13, and equipped with a cutting blade.

[0049] The toothed ring 13 synchronizes the knotting action, ensuring that all components of the knotter (such as the beak 19, rope clamping disc 18, rope cleaning plate 17, and blade arm 110) work in strict sequence to avoid misalignment that could lead to knotting failure. The beak 19 is used to clamp the rope end, working with the large needle assembly 3 to form the knot. It opens and closes during the knotting process to ensure the knot is secure and does not loosen. The rope clamping disc 18 and rope clamping plate 16 fix the rope during the knotting process to prevent loosening, working in conjunction with the beak 19 to ensure a tight knot. After knotting, excess rope is cut off, maintaining a consistent rope end length to prevent tangling. After knotting, the cutter cuts the rope, but may leave a small amount of rope end stuck to the rope clamping disc 18. The rope cleaning plate 17 removes these residual rope ends from the rope clamping disc through a mechanical scraping action, preventing them from interfering with the next knotting attempt.

[0050] When the large needle returns through the rope clamping disc 18, the rope clamping disc 18 clamps the knotted rope, and the beak 19 begins to wrap around the two strands of the knotted rope. Finally, the beak 19 bites the knotted rope, and at the same time, the large needle begins to move back. When it returns, the knotted rope is clamped by the rope clamping disc 18, preparing for the next knotting. After the large needle leaves the knotter, the blade arm 110 begins to move to disengage the rope from the beak 19, and the beak 19 ties the knot. At the same time, the cutter on the blade arm 110 cuts the two strands of rope, completing the knotting.

[0051] like Figure 14 , Figure 15 As shown, the drive assembly 2 includes a motor 21, a drive sprocket 22 and a driven sprocket 23; the driven sprocket 23 is mounted on the main shaft 11, the drive sprocket 22 and the driven sprocket 23 are connected by a chain 24, the drive sprocket 22 is mounted on the output shaft of the motor 21, and the motor 21 drives the drive sprocket 22, the driven sprocket 23 and the main shaft 11 to rotate synchronously, thereby driving the rocker arm 4 to move.

[0052] Both ends of the rocker arm 4 are equipped with bushings. The top bushing is fitted onto the connecting seat 5, which is mounted on the main shaft 11. The bottom bushing is fitted onto the U-shaped bracket of the large needle assembly 3. This further enhances the coordination between the knotter assembly and the large needle assembly and facilitates assembly and maintenance.

[0053] like Figure 13 As shown, the large needle assembly 3 includes a large needle and a U-shaped frame. The U-shaped frame consists of two parallel support legs 31 and a crossbeam 32 fixed between the two support legs 31. The crossbeam 32 is vertically fixed to the bottom of the support legs 31. A first connecting shaft 33 is provided at the top of the support leg, and a second connecting shaft 34 is provided at the upper part of the support leg. The bushing of the rocker arm 4 is sleeved on the second connecting shaft 34. The first connecting shaft 33 is mounted on a bearing seat on the frame of the square straw bale baler.

[0054] Multiple large needles are installed on the crossbeam 32 of the U-shaped frame. In this embodiment, there are a total of 4 large needles, each corresponding to a knotter. The support legs 31 of the U-shaped frame are hinged to the frame of the bale baler. The support legs of the U-shaped frame are connected to the main shaft 11 through the rocker arm 4 and the connecting seat 5. The motor 21 drives the main shaft 11 to rotate, thereby causing the U-shaped frame to rock up and down.

[0055] The large needle includes a needle body 35, a lower seat 36, and an upper seat 37. The needle body 35 is fixed to the bottom of the lower seat 36. Both the lower seat 36 and the upper seat 37 are provided with semi-circular grooves corresponding to the crossbeam 32. The lower seat 36 and the upper seat 37 are clamped onto the crossbeam 32 through the semi-circular grooves and connected by bolts. The large needle is detachably mounted on the crossbeam 32 of the U-shaped frame for easy assembly and maintenance.

[0056] The working principle and process of this utility model are as follows:

[0057] During knotting, the drive assembly 2 drives the main shaft of the large needle and knotter to move. The large needle feeds a strand of rope onto the beak 19 of the knotter and through the rope clamping disc 18. The main shaft 11 rotates, driving the gear ring 13 to move. When the outer teeth of the gear ring mesh with the bevel gear of the beak, the beak 19 begins to rotate and wraps the two strands of rope. After the beak 19 rotates to a certain angle, the upper lip begins to open, gradually forming a knot loop. During this time, the large needle also begins to return. The inner teeth of the gear ring mesh with the bevel gear in the worm gear shaft, driving the shaft to rotate. The worm gear in the shaft meshes with the rope clamping disc, thereby driving the rope clamping disc to rotate 90° and clamping the knotted rope returned by the large needle into the rope clamping disc through the rope clamping plate, as the next... The end of the knotted rope during the next knotting; when the beak 19 rotates to the initial position, the upper lip bites the double-strand knotted rope, and the large needle returns to the back of the blade arm, the blade arm 110 starts to move under the drive of the toothed ring cam groove to disengage the rope loop on the beak from the beak, and forms a relative movement with the knotted rope bitten by the beak to complete the knotting operation; while the blade arm 110 completes the rope disengagement operation, the cutter on the blade arm cuts the knotted rope between the rope buckle and the rope clamping disc 18, one strand becomes the end point for the next knotting, and the other strand falls to the ground under the action of the rope clearing plate 17; after the knotting is completed, all parts return to the initial position, ready for the next knotting.

[0058] This invention is applicable to square straw bale balers, ensuring that the start-up thread feeding and return time of the large needle assembly, as well as the rhythm of the large needle return after knotting, are matched and consistent with the starting, clamping, knotting, and cutting movements of the knotter. It ensures strict synchronization between needle threading and knotting actions, guaranteeing that the large needle assembly accurately delivers the rope, and the knotter quickly completes the knotting; the knot quality is high, and the knotted knots are firm, reliable, and do not unravel. The knotter structure of this invention is simplified, facilitating processing, assembly, and maintenance. The coordination rate of each component results in high knotting efficiency, high knot quality, strong ability to perform simultaneous multi-knotting operations, high knotting success rate, higher reliability, stronger adaptability, and lower overall cost.

[0059] The above description is only a part of the specific embodiments of this utility model. The protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and utility model concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A square bale baler line feeding and knotting device, characterized in that: it comprises a knotter assembly, a driving assembly and a large needle assembly; the knotter assembly comprises a main shaft and a plurality of knotters mounted on the main shaft, the knotter comprises a gear ring, a beak, a rope clamping disc and a knife arm, the main shaft is mounted on the frame of the square bale baler, and the main shaft is connected with the driving assembly; the large needle assembly comprises a large needle and a U-shaped frame, a plurality of large needles are mounted on the cross beam of the U-shaped frame, the legs of the U-shaped frame are mounted on the frame of the square bale baler, and the legs of the U-shaped frame are connected with the driving assembly through a rocker arm; the driving assembly drives the main shaft to rotate and drives the large needle to rotate towards the knotter through the rocker arm, the large needle passes through the rope clamping disc with the knotting rope, and the gear ring, the beak, the rope clamping disc and the knife arm cooperate to complete the knotting operation.

2. The square bale baler line feeding and knotting device according to claim 1, characterized in that: the knotter comprises a gear ring, a worm gear shaft, a frame body, a rope clamping piece, a rope cleaning piece, a rope clamping disc, a beak and a knife arm; the gear ring is mounted on the main shaft and rotates with the main shaft, the worm gear shaft is mounted on the frame body, the bevel gear of the worm gear shaft is meshed with the inner teeth of the gear ring; the rope clamping disc is provided with a rope clamping disc gear, the rope clamping disc gear is meshed with the worm gear of the worm gear shaft, and the rope cleaning piece is mounted on the rotating shaft of the rope clamping disc; the rope clamping piece is hinged to the frame body and located at the rope clamping disc; the beak is provided with a beak bevel gear, the beak bevel gear is meshed with the outer teeth of the gear ring; the knife arm is hinged to the frame body, the knife arm is connected with the gear ring, and a cutter is arranged on the knife arm.

3. The square bale baler line feeding and knotting device according to claim 2, characterized in that: the gear ring and the frame body are mounted on the main shaft, the gear ring rotates with the main shaft, and the frame body is fixed on the frame through bolts.

4. The square bale baler line feeding and knotting device according to claim 1, characterized in that: the driving assembly comprises a motor, a driving sprocket and a driven sprocket; the driven sprocket is mounted on the main shaft, the driving sprocket and the driven sprocket are connected through a chain, the driving sprocket is connected with the motor, and the motor drives the driving sprocket and the driven sprocket to rotate synchronously.

5. The square bale baler line feeding and knotting device according to claim 1, characterized in that: the rocker arm is provided with a shaft sleeve at both ends, one end of the shaft sleeve is sleeved on the main shaft, and the other end of the shaft sleeve is sleeved on the U-shaped frame.

6. The square bale baler line feeding and knotting device according to claim 5, characterized in that: the leg of the U-shaped frame of the large needle assembly is provided with a first connecting shaft at the top end, a second connecting shaft is arranged on the upper part of the leg, the shaft sleeve of the rocker arm is sleeved on the second connecting shaft, and the first connecting shaft is mounted on the bearing seat of the frame of the square bale baler.

7. The square bale baler line feeding and knotting device according to claim 1, characterized in that: the large needle comprises a needle body, a lower seat and an upper seat, the needle body is fixedly connected with the lower seat, and the lower seat and the upper seat are fixedly connected with the cross beam of the U-shaped frame through bolts.

8. The square bale baler line feeding and knotting device according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The knotter assembly further includes a plurality of bearing seats, a plurality of bearings mounted on the spindle, the bearings mounted in the bearing seats, the bearing seats fixed to the frame of the square bale accumulator.

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