Straw and pasture cutting and double independent knotting combined system and double-bag bundling machine

Abstract

A kind of straw and pasture cutting and double independent knotting combined system and double bag bundling machine belong to the field of bundling machine.Slide rail is fixed on bundling machine frame and is arranged longitudinally along bundling machine frame, piston is slidably connected with slide rail, two cutting fixed knives are fixed on the rear end of piston and are arranged side by side, cutting fixed knife is fixedly connected with knotter frame body at the center position of rear part of double independent knotting system, cutting fixed knife and cutting movable knife are arranged staggeredly, double independent knotting system is located behind piston, and double independent knotting system is arranged transversely and fixed on bundling machine frame.Bundling machine frame is provided with pickup table, stirrer shaft and crankshaft from front to back, output shaft of gearbox is connected with stirrer shaft, pickup table, piston, crankshaft and knotter shaft through chain transmission system, compression chamber and baling chamber are fixed on bundling machine frame, baling chamber is located at the rear part of compression chamber and is arranged opposite, and baling chamber is divided into two independent chambers by partition.The present application is used for straw and pasture bundling.

Description

Technical Field

[0001] This utility model belongs to the field of baler technology, specifically relating to a straw and forage cutting and double independent knotting combination system and a double-bundle baler. Background Technology

[0002] Existing straw cutting mechanisms often have uneven cutting ends, resulting in irregular bale shapes. Furthermore, they generally use an integrated knotting system, which can easily lead to bale sizes and densities that vary for multi-chamber balers.

[0003] Furthermore, traditional straw balers are mostly single-chamber structures, resulting in low efficiency and high energy consumption. When the compression density cannot meet high efficiency requirements, increasing output per unit time becomes particularly important. Therefore, how to improve the efficiency of balers has become a problem urgently needing to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this utility model is to solve the above-mentioned problems existing in the prior art by providing a straw and forage cutting and double independent knotting combination system and a double-bundle baler.

[0005] This utility model achieves stable output of density and shape of two straw bales or two hay bales by sharing a power source, a picking platform, a compression chamber, and an innovative straw and hay cutting mechanism and a dual independent knotting system, and enables efficient independent operation of the two bale-forming chambers.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A straw and forage slitting and dual independent knotting combined system includes a straw and forage slitting mechanism and a dual independent knotting system. The straw and forage slitting mechanism includes a piston, a slide rail, a slitting stationary blade, and two slitting moving blades. The slide rail is longitudinally arranged and fixed on the baler frame. The piston is slidably connected to the slide rail. Two slitting moving blades arranged vertically and horizontally are fixedly mounted on the rear end of the piston. The slitting stationary blade is fixedly connected to the center of the rear part of the knotter frame of the dual independent knotting system and the baler frame. The slitting moving blade and the slitting stationary blade are staggered. The dual independent knotting system is located behind the piston and is arranged laterally and fixed on the baler frame.

[0008] Furthermore, both the slitting vertical moving blade and the slitting vertical stationary blade are single-edged straight blades, and the side of the slitting vertical moving blade is fixedly connected to the rear side of the piston's middle vertical plate; the side of the slitting vertical stationary blade is fixedly connected to the knotter frame and the baler frame, respectively.

[0009] The piston includes a lower cutter, a piston frame, a middle vertical plate, a connecting rod shaft, two connecting rods, and multiple adjusting plates. Multiple vertically arranged bearings are fixedly mounted on the left and right sides of the piston frame, and these bearings move within a slide rail. Each adjusting plate has two bolt holes, one of which is an arc-shaped elongated hole. Each adjusting plate is fixedly connected to the upper right side of the piston frame via bolts passing through the two bolt holes. The adjusting plate can swing through the arc-shaped elongated hole. Each adjusting plate is fixedly mounted with a horizontally arranged bearing, positioned close to the arc-shaped elongated hole. Multiple horizontally arranged bearings are fixedly mounted on the upper left side of the piston frame, and these bearings contact the left and right inner walls of the slide rail. A middle vertical plate is fixedly mounted at the rear end of the piston frame, and two vertically arranged cutting blades are arranged side-by-side and fixed to the rear side of the middle vertical plate. The connecting rod shaft is arranged laterally in the middle of the piston frame and fixedly connected to it. Two connecting rods are arranged side-by-side and fixedly connected to the outer surface of their corresponding connecting rod bearings, which are fixedly mounted on the connecting rod shaft. A lower cutter is fixedly mounted at the lower rear end of the piston frame.

[0010] Furthermore, the dual independent knotting system includes a knotter system, two counter systems, and two large needle holder devices. The knotter system includes a knotter frame, two knotter shafts, four knotters, two cam mechanisms, two large needle holder connecting arms, and two pull rods. The knotter frame is fixedly mounted on the baler frame and located above and behind the piston. The two knotter shafts are coaxially and symmetrically arranged within the knotter frame. The two opposite ends of the two knotter shafts are rotatably connected to the support sleeves, and the two opposing ends of the two knotter shafts are rotatably connected to the left and right side walls of the knotter frame. Two knotters are installed on each of the two knotter shafts. A sprocket four of the baler chain drive system is rotatably mounted on the two opposing ends of the two knotter shafts. The outer surfaces of the two sprocket fours are provided with rings, and the inner walls of the rings are fixed with... A roller baffle is provided, with its inner side contacting the roller of the cam mechanism. The cam of the cam mechanism is fixedly connected to the large needle holder connecting arm, allowing the cam mechanism to rotate along the knotter shaft with the large needle holder connecting arm. One end of the pull rod is hinged to the large needle holder connecting arm, allowing the pull rod and the large needle holder connecting arm to rotate freely at the connection point. The large needle holder connecting arm is fixedly connected to the knotter shaft. Two counter systems are symmetrically arranged on the left and right sides of the knotter frame and fixedly connected to the upper rear edge of the baler frame. Two large needle holder devices are rotatably connected to their corresponding pull rods, and simultaneously, the two large needle holder devices are also rotatably connected to the rotary shaft at the rear of the baler frame. The rotary shaft is arranged laterally and its two ends are fixedly connected to the baler frame. A rotating shaft is fixed at each of the left and right ends of the knotter frame, and the two rotating shafts are coaxially arranged.

[0011] Furthermore, both cam mechanisms include a pawl, a first roller, and a cam; the pawl is rotatably connected to the cam shaft and can swing freely around the cam shaft; the first roller is rotatably connected to a first roller shaft and the first roller shaft is fixed on the pawl and can swing freely around the first roller shaft; an extension arm is fixed on the cam and is connected to the pawl by a second spring.

[0012] Furthermore, both of the aforementioned large needle holder devices include a large needle bracket and two large needles; one end of the large needle bracket is rotatably mounted on the rotary shaft at the rear of the baler frame, the extended arm of the large needle bracket is rotatably connected to the pull rod through a pin, and two large needles are fixedly mounted side by side on the transverse arm of the large needle bracket.

[0013] Furthermore, both of the aforementioned counter systems include counting teeth, transmission teeth, counter tooth plate, reset base plate, two rollers, adjusting screw, handle, counter bracket, fixing sleeve, two limit covers, limit screw, lower fixing plate, upper fixing plate, and spring one;

[0014] A central shaft is located in the middle of the counting teeth. This central shaft passes through a bushing on the counter bracket and two back-to-back limiting covers. A transmission tooth is located between the two limiting covers. The central shaft of the counting teeth is fixedly passed through the transmission tooth, and its outer end is locked with a nut. The axle of roller two passes through the reset plate and is fastened with a nut. One end of the lower fixed plate and the upper fixed plate are rotatably connected to the reset plate, and the other ends of the lower and upper fixed plates are respectively fixedly connected to both ends of the counter tooth plate. The reset plate engages with the jaws and has a shaft hole. The reset plate is fitted onto the rotating shaft through the shaft hole and can rotate around the rotating shaft. The lower fixed plate is connected to the baler frame via spring three. The reset plate is connected to the baler frame via spring three. The frames are connected by four springs; the inner arc surface of the counter tooth plate has two semi-circular holes symmetrically arranged on the top and bottom, and multiple teeth are arranged on the inner arc surface of the counter tooth plate between the two semi-circular holes. The teeth on the counter tooth plate mesh with the transmission teeth. When the transmission teeth rotate, they drive the counter tooth plate to move up and down; the adjusting screw passes through the upper end of the counter bracket, and a spring and a screw nut are fitted on the adjusting screw from top to bottom. The adjusting screw is fastened to the upper end of the counter bracket by the screw nut. The head of the limiting screw has a threaded through hole. The adjusting screw passes through the threaded through hole of the limiting screw and the two are threadedly connected. The limiting screw passes through the counter bracket and the fixing sleeve and is threadedly connected to the threaded hole in the middle of the handle. The counter bracket is fixed to the rear of the baler frame.

[0015] A double-baler comprising a straw and hay cutting and double independent knotting combination system, the double-baler includes a baler frame, a pickup platform located at the lower front of the baler frame, with each end of the pickup platform fixedly connected to a corresponding pickup platform connecting plate, each pickup platform connecting plate having a through hole, the pickup platform connecting plate being fitted onto the outside of a rotating shaft sleeve through the through hole, the two rotating shaft sleeves being coaxially arranged and fixedly connected to the left and right side walls of the baler frame respectively, the pickup platform rotating and floating around the rotating shaft sleeves via the pickup platform connecting plates; a straw pressing rod device is located above the pickup platform, the straw pressing rod device being fixedly connected to the left and right side walls of the baler frame; a gearbox is fixedly installed at the upper center of the baler frame; the left and right power output shafts of the gearbox are rotatably connected to one end of a corresponding crank, the other end of the crank... One end of the connecting rod is rotatably connected to the piston; the dual independent knotting system is fixedly mounted on the baler frame and located above and behind the piston; two auger shafts are coaxially and symmetrically arranged above and behind the pickup platform, with the two opposite ends of the two auger shafts passing through corresponding rotating bushings and rotatably connected to the baler frame; a crankshaft is located above and behind the auger shafts, with both ends of the crankshaft rotatably connected to the left and right side walls of the baler frame, and the straw-pulling fork is mounted on the crankshaft; a compression chamber and a baling chamber are fixedly mounted on the baler frame, with the compression chamber located above and behind the straw-pulling fork and directly opposite the piston; the baling chamber is located behind the compression chamber and directly opposite the compression chamber, and the baling chamber is divided into two independent chambers by a partition; the output shaft of the gearbox transmits power to the auger shaft, pickup platform, piston, crankshaft, and knotter shaft respectively through a chain drive system.

[0016] Furthermore, the chain drive system includes chain drive mechanism one, two chain drive mechanisms two, chain drive mechanism three, chain drive mechanism four, chain drive mechanism five, and chain drive mechanism six;

[0017] The right power output shaft of the gearbox is connected to the right end of the crankshaft via chain drive mechanism one. The left and right power output shafts of the gearbox are connected to the two knotter shafts via chain drive mechanism two, respectively. The left power output shaft of the gearbox is connected to the auger shaft on the left side via chain drive mechanism three and chain drive mechanism four. The auger shaft on the left side is connected to the left end of the pickup platform via chain drive mechanism five. The right end of the pickup platform is connected to the auger shaft on the right side via chain drive mechanism six.

[0018] Furthermore, the first chain drive mechanism includes a sprocket, a sprocket, and a chain. Sprocket 1 is fixedly mounted on the right power output shaft of the gearbox, and sprocket 2 is fixedly mounted on the right end of the crankshaft. Sprocket 1 and sprocket 2 are connected by chain 1. Each of the two second chain drive mechanisms includes a sprocket, a sprocket, and a chain. The two sprockets are fixedly mounted on the left and right power output shafts of the gearbox. The two sprockets are connected to the two sprockets rotatably mounted on the two knotter shafts via chains 2. The third chain drive mechanism includes a sprocket, a sprocket, and a chain. Sprocket 5 is fixedly mounted on the left power output shaft of the gearbox, and sprocket 6 is fixedly mounted on a transition shaft. Both ends of the transition shaft are connected to the baler frame. The left-side rotating connection includes sprocket five and sprocket six, which are connected by chain three. Chain drive mechanism four includes sprocket seven, sprocket eight, and chain four. Sprocket seven is fixedly mounted on the transition shaft, and sprocket eight is fixedly mounted on the auger shaft on the left side. Sprocket seven and sprocket eight are connected by chain four. Chain drive mechanism five includes sprocket nine, sprocket ten, and chain five. Sprocket nine is fixedly mounted on the auger shaft on the left side, and sprocket ten is fixedly mounted on the left end of the pickup platform. Sprocket nine and sprocket ten are connected by chain five. Chain drive mechanism six includes sprocket eleven, sprocket twelve, and chain six. Sprocket eleven is fixedly mounted on the right end of the pickup platform, and sprocket twelve is fixedly mounted on the auger shaft on the right side. Sprocket eleven and sprocket twelve are connected by chain six.

[0019] The advantages of this utility model over the prior art are:

[0020] 1. The straw and hay cutting and double independent knotting combination system of this utility model, with the straw and hay picking platform, auger shaft, hay fork and compression chamber as a common component, cuts the straw and hay into two parts in the compression chamber and provides them to the double independent knotting system, so as to realize the simultaneous production of double straw bales or double hay bales.

[0021] 2. The double-bundle straw and hay baler of this utility model, because its two independent knotting systems share a single piston, ensures that the binding rope is accurately fed into the knotter after the straw or hay bale enters the baling chamber as the piston pushes the compressed straw or hay bale backward. Furthermore, the knotter completes the knotting action during rotation, resulting in reliable bale quality and securely fixing the straw or hay bales, preventing them from unraveling during transportation or subsequent processing.

[0022] 3. The straw and hay cutting and double independent knotting combination system of this utility model is fixedly installed on the baler frame by bolts. The structure is compact, the layout is reasonable, and it is easy to install and maintain. At the same time, it also ensures the coordination of movement between various components.

[0023] 4. The power output shaft of the gearbox transmits power to the auger shaft, pickup platform, piston, crankshaft, and knotter shaft via a chain drive system. This power transmission method allows each component to work collaboratively at a set speed and sequence (e.g., the auger shaft gathers straw or hay towards the center, the piston, driven by power, performs the actions of cutting and pushing the straw or hay into compressed bales, and the knotter shaft drives the knotter to perform the knotting operation). The entire process is smooth, ensuring that the entire process of picking up straw or hay from pickup to bale placement is carried out efficiently and orderly.

[0024] 5. The baler's baling chamber is divided into two independent chambers by a partition, enabling independent baling of two bales. This design allows for simultaneous baling of two straw or hay bales, significantly improving baling efficiency. Compared to traditional single-bale balers, double-bale balers can process more straw or hay in the same amount of time, thus improving overall operational efficiency.

[0025] 6. The baler is equipped with dual independent knotting systems, each including a knotter, a counter system, and a large needle holder. When the straw or hay bales reach the set length, the counter system accurately triggers the knotting action, and the large needle holder feeds the baling rope into the knotter, which then completes the knotting process. This ensures a smooth knotting process, guaranteeing that each straw or hay bale is securely tied, preventing untidying during subsequent transportation or processing, and ensuring baling quality. Attached Figure Description

[0026] Figure 1 This is a front view of the straw and forage cutting and double independent knotting combination system of this utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of the dual independent knotting system;

[0028] Figure 3 This is a front view of two large needle holder devices arranged symmetrically;

[0029] Figure 4 This is a schematic diagram of the structure of the vertical moving slitting blade;

[0030] Figure 5 This is a schematic diagram of the slitting and fixing blade;

[0031] Figure 6 This is a front view of the double-pack baling machine of this utility model;

[0032] Figure 7 yes Figure 6 Top view;

[0033] Figure 8 This is a front view of one end of the auger shaft mounted on the baler frame;

[0034] Figure 9 This is the front view of the counter;

[0035] Figure 10 yes Figure 9 Top view;

[0036] Figure 11 This is a schematic diagram of the counting teeth;

[0037] Figure 12 This is a schematic diagram of the limit screw structure;

[0038] Figure 13 This is a schematic diagram of the cam mechanism;

[0039] Figure 14 This is a schematic diagram of the structure in which sprocket four is fixedly connected to the roller baffle.

[0040] Figure 15 This is a schematic diagram of a cam mechanism;

[0041] Figure 16 This is the front view of the piston;

[0042] Figure 17 yes Figure 16 Top view;

[0043] Figure 18 This is a front view of the power transmission route of the double-pack baler of this utility model;

[0044] Figure 19 This is a top view of the power transmission route of the double-pack baler of this utility model;

[0045] Figure 20 This is a diagram of a bundle of straw after the knots have been tied.

[0046] The component names and reference numerals in the above figures are as follows:

[0047] 1. Hay-pulling fork; 2. Auger shaft; 3. Pick-up table; 4. Crankshaft; 5. Hay-pressing rod device; 7. Gearbox; 8. Crank; 9. Connecting rod; 10. Slide rail; 11. Piston; 12. Slitting vertical blade; 13. Knotter system; 14. Compression chamber; 15. Counter system; 16. Slitting stationary blade; 17. Baling chamber; 18. Large needle holder device; 19. Baler frame; 20. Knotter frame; 21. Intermediate vertical plate; 22. Piston frame; 23. Connecting rod shaft. 25. Adjusting plate; 26. Bearing 1; 27. Bearing 2; 28. Connecting rod bearing; 29. ​​Lower cutter; 30. Knotter shaft; 31. Knotter; 32. Cam mechanism; 33. Large needle holder connecting arm; 34. Pull rod; 35. Support sleeve; 36. Sprocket 4; 37. Roller baffle; 38. Claw; 39. Roller 1; 40. Camshaft; 41. Roller shaft 1; 42. Large needle holder; 43. Large needle; 44. Pin; 45. Counting teeth; 46. Transmission. 47. Gear; 48. Counter tooth plate; 49. Reset base plate; 50. Roller II; 51. Adjusting screw; 52. Handle; 53. Counter bracket; 54. Fixing sleeve; 55. Limit cover; 56. Limit screw; 57. Lower fixing plate; 58. Upper fixing plate; 59. Spring I; 60. Screw nut; 61. Pickup table connecting plate; 62. Rotary bushing; 63. Bearing X; 64. Bearing seat X; 65. Chain drive mechanism I; 66. Chain drive mechanism II; 67. Chain drive mechanism III; 68. Chain drive mechanism IV; 69. Chain drive mechanism V; 70. Sprocket I; 71. Sprocket II; 72. Sprocket III; 73. Sprocket V; 74. Sprocket VI; 75. Sprocket V; 76. Sprocket IX; 77. Sprocket X; 78. Chain drive mechanism VI; 79. Sprocket XI; 80. Sprocket XII; 81. Drive shaft; 82. Socket head bolt; 83. Key; 84. Hex head bolt; 85. Threaded through hole; 86. 87. Rotating shaft, 88. Spring 2, 89. Spring 3, 90. Spring 4, 91. Extending arm, 92. Straw bale, 93. Rope knot, 94. Binding rope, 95. Detailed Implementation

[0048] like Figures 1-19 As shown, this embodiment describes a straw and forage cutting and double independent knotting combination system, including a straw and forage cutting mechanism and a double independent knotting system. The straw and forage cutting mechanism includes a piston 11, a slide rail 10, a cutting stationary blade 16 and two cutting moving blades 12.

[0049] The slide rail 10 is longitudinally fixed on the baler frame 19. The piston 11 is slidably connected to the slide rail 10. Two vertically arranged slitting blades 12 are fixedly mounted on the rear end of the piston 11 (by bolts). The vertically arranged slitting blade 16 is fixedly connected (by bolts) to the rear center of the knotter frame 20 of the double independent knotting system and the baler frame 19. The vertically arranged slitting blades 12 and slitting blades 16 are staggered. The double independent knotting system is located behind the piston 11. The double independent knotting system is arranged laterally and fixed (by bolts) on the baler frame 19.

[0050] The piston 11 drives the vertical cutting blade 12 to move linearly, and the vertical cutting blade 12 and the vertical cutting blade 16 perform a cross-cutting motion. The vertical cutting blade 12 can also be removed (resistance will increase slightly, but it can be used normally in most cases). The relative movement between the piston 11 and the vertical cutting blade 16 is also within the scope of protection of this utility model.

[0051] The lateral distance between the vertical moving slitting blade 12 and the vertical stationary slitting blade 16 is less than 2.5 mm.

[0052] The beneficial effects of the straw or hay slitting and dual independent knotting combination system are as follows: the piston 11 drives the slitting vertical blade 12 in a linear motion, and the slitting vertical blade 12 and the slitting vertical fixed blade 16 perform a cross-cutting motion. This design enables the straw or hay to be cut into two parts within the compression chamber 14. Since the lateral distance between the slitting vertical blade 12 and the slitting vertical fixed blade 16 is less than 2.5mm, this small distance setting can avoid straw jamming or uneven cut surfaces during the cutting process.

[0053] Furthermore, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, both the vertical cutting blade 12 and the vertical cutting blade 16 are single-edged straight blades. The side of the vertical cutting blade 12 is fixedly connected to the rear side of the middle vertical plate 21 of the piston 11 (by bolts). The side of the vertical cutting blade 12 is provided with two vertically arranged through holes. The vertical cutting blade 12 is fixedly connected to the corresponding threaded hole on the middle vertical plate 21 of the piston 11 by bolts inserted into the two through holes.

[0054] The slitting blade 16 is fixedly connected to the knotter frame 20 and the baler frame 19 on its side (the slitting blade 16 has a through hole 2 along the thickness direction on its side, and the knotter frame 20 and the baler frame 19 have a through hole 4 at the corresponding position of the through hole 2. The knotter frame 20 and the baler frame 19 are fastened to the through hole 2 of the slitting blade 16 with a nut by bolts inserted into the through hole 4, thereby fixing the slitting blade 16 on the knotter frame 20 and the baler frame 19).

[0055] Variations in the number, blade type, and fixing method of the slitting stationary blade 16 and the slitting moving blade 12 are all within the scope of protection of this utility model.

[0056] Furthermore, such as Figure 1 , Figure 16 , Figure 17As shown, the piston 11 includes a lower cutter 29, a piston frame 22, an intermediate vertical plate 21, a connecting rod shaft 23, two connecting rods 9, and multiple adjusting plates 25. Multiple vertically arranged bearings 26 are fixedly mounted on the left and right sides of the piston frame 22 (the bearings 26 are fixedly connected to the piston frame 22 by bolts passing through their inner rings), and the multiple bearings 26 move within the slide rail 10. Each adjusting plate 25 has two bolt holes, one of which is an arc-shaped elongated hole. Each adjusting plate 25 is fixedly connected to the upper right side of the piston frame 22 by bolts passing through the two bolt holes. The adjusting plate 25 can... The piston swings through the arc-shaped elongated hole (which can serve as an adjustment function). Each adjustment plate 25 is fixedly equipped with a horizontally arranged bearing 27 (the adjustment plate 25 and the inner ring of the bearing 27 are fixedly connected by bolts). The bearing 27 is located close to the arc-shaped elongated hole. Multiple horizontally arranged bearings 27 are fixedly installed on the upper left side of the piston frame 22. The multiple bearings 27 are in contact with the left and right inner side walls of the slide rail 10 (serving the left and right positioning function). A middle vertical plate 21 is fixed at the rear end of the piston frame 22. The two cutting vertical moving blades 12 are arranged side by side (and fixed to the rear side of the middle vertical plate 21 by bolts).

[0057] The connecting rod shaft 23 is arranged laterally in the middle of the piston holder 22 and is fixedly connected to the piston holder 22 (by bolts). The two connecting rods 9 are arranged side by side and are fixedly connected to the outer surface of the corresponding connecting rod bearing 28. The connecting rod bearing 28 is fixedly mounted on the connecting rod shaft 23 (the connecting rod 9 can swing around the connecting rod shaft 23 through the connecting rod bearing 28, and the two connecting rods 9 are symmetrically arranged with respect to the center of the piston holder 22). The lower rear end of the piston holder 22 is fixedly mounted with a lower cutter 29 (by bolts).

[0058] Preferably, there are six bearings 26, which are symmetrically arranged on the left and right sides; there are also six bearings 27, with the three on the left fixed to the piston bracket 22 and the three on the right fixed to the corresponding adjusting plates 25.

[0059] like Figure 6 As shown, the function of the lower cutter 29 is to cut the straw or hay that has not been fully fed into the compression chamber 14 from the middle, and the straw or hay that has not entered the compression chamber 14 falls back to the auger shaft 2, reducing the resistance of the piston 11 and ensuring the regularity of the bale shape.

[0060] Furthermore, such as Figures 1-3 , Figure 9 , Figure 14As shown, the dual independent knotting system includes a knotter system 13, two counter systems 15, and two large needle holder devices 18; the knotter system 13 includes a knotter frame 20, two knotter shafts 30, four knotters 31, two cam mechanisms 32, two large needle holder connecting arms 33, and two pull rods 34; the knotter frame 20 is fixedly mounted (by bolts) on the baler frame 19 and located above and behind the piston 11; the two knotter shafts 30 are coaxially and symmetrically arranged inside the knotter frame 20, and the two opposite ends of the two knotter shafts 30 are rotatably connected to the support sleeves 35 respectively (the two opposite ends of the two knotter shafts 30 are respectively...) A bearing 3 is fixedly installed inside a support sleeve 35, which is supported by a support plate in the middle of the knotter frame 20. The two opposite ends of the two knotter shafts 30 are rotatably connected to the left and right side walls of the knotter frame 20, respectively. (A bearing 4 is fixedly installed on each of the two opposite ends of the two knotter shafts 30, which is fixedly installed inside a bearing seat 4. The two bearing seats 4 are fixedly connected to the left and right side walls of the knotter frame 20 by bolts.) Two knotters 31 are installed on each of the two knotter shafts 30 (the four knotters 31 are symmetrically arranged on the left and right sides. The knotters 31 are existing technology and are externally purchased parts).

[0061] Both opposite ends of the two knotter shafts 30 are rotatably mounted with sprockets 4 36 of the baler chain drive system (the sprockets 4 36 are rotatably mounted on the knotter shafts 30 via bearings 5 ​​and can rotate freely along the circumference of the knotter shafts 30). The outer surfaces of both sprockets 4 36 are provided with rings, and roller baffles 37 are fixed to the inner walls of the rings (via bolts). Figure 14 As shown), the inner side of the roller baffle 37 contacts the roller 39 of the cam mechanism 32 (cam mechanism 32 as shown). Figure 13 As shown), the cam 40 of the cam mechanism 32 is fixedly connected to the large needle holder connecting arm 33 (by bolts). (The cam 40 has a threaded hole three, and the large needle holder connecting arm 33 has a through hole three. The large needle holder connecting arm 33 is fastened to the threaded hole three of the cam 40 by bolts inserted into the through hole three.) The cam mechanism 32 can rotate along the knotter shaft 30 with the large needle holder connecting arm 33. One end of the pull rod 34 is hinged to the large needle holder connecting arm 33 (the pull rod 7 has a bearing hole six, and a bearing six is ​​installed in the bearing hole six. The large needle holder connecting arm 33 is axially fixedly connected to the bearing six by bolts). The pull rod 34 and the large needle holder connecting arm 33 can rotate freely at the connection point. The large needle holder connecting arm 33 is fixedly connected to the knotter shaft 30.

[0062] Two counter systems 15 are symmetrically arranged on the left and right sides of the knotter frame 20 and are fixedly connected to the upper rear edge of the baler frame 19 (by bolts);

[0063] Two large needle holder devices 18 are rotatably connected to the corresponding pull rods 34 respectively (via pins 45). At the same time, the two large needle holder devices 18 are also rotatably connected to the rotary shaft 87 at the rear of the baler frame 19. The rotary shaft 87 is arranged horizontally and its two ends are fixedly connected to the baler frame 19. A rotating shaft 88 is fixed at each of the left and right ends of the knotter frame 20, and the two rotating shafts 88 are coaxially arranged.

[0064] like Figure 6 , Figure 7 As shown, the two counter systems 15 and the two large needle holder devices 18 are symmetrically arranged on the left and right sides, independent of each other and without interference. This structural design allows the knotting process on the left and right sides to be carried out independently without interference. This design can effectively ensure that the density of the two bundles is uniform.

[0065] Furthermore, such as Figures 13-15 As shown, both cam mechanisms 32 include a pawl 38, a roller 39, and a cam 40 (e.g., ...). Figure 13 (As shown); the pawl 38 is rotatably connected to the camshaft 41, and the pawl 38 can swing freely around the camshaft 41 (the camshaft 41 is fixedly connected to the cam 40, and the pawl 38 is axially limited by a snap ring, which is attached to the camshaft 41); the roller 39 is rotatably connected to the roller shaft 42, and the roller shaft 42 is fixed to the pawl 38; the roller 39 can swing freely around the roller shaft 42 (the roller 39 is axially limited by a snap ring, which is attached to the inner hole of the pawl 38); an extension arm 92 is fixed on the cam 40 (by welding), and the extension arm 92 is connected to the pawl 38 by a spring 89.

[0066] Furthermore, both of the aforementioned large needle holder devices 18 include a large needle holder 43 and two large needles 44 (e.g., Figure 3 As shown); one end of the large needle bracket 43 (via bearing seven) is rotatably mounted on the rotary shaft 87 at the rear of the baler frame 19 (the large needle bracket 43 reciprocates around bearing seven as the rotation point), and the extended arm of the large needle bracket 43 (as shown) Figures 1-3 As shown, the large needle bracket 43 is rotatably connected to the pull rod 34 via a pin 45, and two large needles 44 are fixedly mounted side by side on the horizontal arm (removable).

[0067] Furthermore, such as Figures 9-12 As shown, both counter systems 15 include counting teeth 46, transmission teeth 47, counter tooth plate 48, reset base plate 49, roller 50, adjusting screw 51, handle 52, counter bracket 53, fixing sleeve 54, two limit covers 55, limit screw 56, lower fixing plate 57, upper fixing plate 58 and spring 59.

[0068] The counting tooth 46 has a central shaft in the middle. The central shaft of the counting tooth 46 passes through the bushing on the counter bracket 53 and two back-to-back limiting covers 55 in sequence. A transmission tooth 47 is provided between the two limiting covers 55. The central shaft of the counting tooth 46 is fixedly passed through the transmission tooth 47. The outer end of the central shaft of the counting tooth 46 is locked by a nut (the end of the central shaft of the counting tooth 46 has an external thread, and the central shaft of the counting tooth 46 is threadedly connected to the nut. The central shaft of the counting tooth 46 can rotate freely within the bushing of the counter bracket 53).

[0069] The axle of roller 2 50 passes through the reset plate 49 and is fastened by a nut (the reset plate 49 is approximately L-shaped). One end of the lower fixed plate 57 and the upper fixed plate 58 (via bolts and nuts) is rotatably connected to the reset plate 49 (the ends of the lower fixed plate 57 and the upper fixed plate 58 can rotate around the connection point with the reset plate 49). The other ends of the lower fixed plate 57 and the upper fixed plate 58 are respectively (via bolts and nuts) fixedly connected to both ends of the counter tooth plate 48. The reset plate 49 engages with the claw 38. The reset plate 49 has a shaft hole. The reset plate 49 is fitted onto the rotating shaft 88 through the shaft hole and can rotate around the rotating shaft 88. The lower fixed plate 57 is connected to the baler frame 19 by spring 3 90, and the reset plate 49 is connected to the baler frame 19 by spring 4 91.

[0070] The inner arc surface of the counter tooth plate 48 is symmetrically provided with two semi-circular holes. The inner arc surface of the counter tooth plate 48 is provided with multiple teeth between the two semi-circular holes. The teeth on the counter tooth plate 48 mesh with the transmission teeth 47. When the transmission teeth 47 rotates, it drives the counter tooth plate 48 to move up and down.

[0071] The adjusting screw 51 passes through the upper end of the counter bracket 53. A spring 59 and a screw nut 60 are fitted on the adjusting screw 51 from top to bottom. The adjusting screw 51 is fastened to the upper end of the counter bracket 53 by the screw nut 60.

[0072] The head of the limiting screw 56 is provided with a threaded through hole 86. The adjusting screw 51 passes through the threaded through hole 86 of the limiting screw 56 and the two are threadedly connected. The limiting screw 56 passes through the counter bracket 53 and the fixing sleeve 54 and is threadedly connected to the threaded hole in the middle of the handle 52 (tightening the handle 52 will press the head of the fixing sleeve 54 and the limiting screw 56 against the counter bracket 53, which will lock the screw in place. When the handle 52 is tightened, the adjusting screw 51 cannot rotate; when the handle 52 is loosened, the adjusting screw 51 can rotate, and the limiting screw 56 can move up and down. The limiting screw 13 contacts the upper fixing plate 18 and acts as a limit. By changing the length of the engagement between the counter tooth plate 48 and the transmission tooth 47, the triggering time of the counter system can be changed, thereby enabling the adjustment of the bale length). The counter bracket 53 is fixed to the rear of the baler frame 19.

[0073] Specific implementation method two: such as Figures 1-19 As shown, this embodiment describes a double-baler that includes the straw and forage cutting and double independent knotting combination system described in Specific Embodiment 1. The double-baler includes a baler frame 19, and a pickup platform 3 (existing technology) is set at the lower front of the baler frame 19. The two ends of the pickup platform 3 are respectively fixedly connected to their respective pickup platform connecting plates 61. The pickup platform connecting plate 61 is provided with a through hole. The pickup platform connecting plate 61 is fitted onto the outside of the rotary bushing 62 through the through hole. The two rotary bushings 62 are coaxially arranged and respectively (by bolts) fixedly connected to the left and right side walls of the baler frame 19. The pickup platform 3 can rotate and float around the rotary bushing 62 through the pickup platform connecting plate 61.

[0074] A straw pressing rod device 5 (existing technology) is installed above the picking platform 3. The straw pressing rod device 5 is fixedly connected to the left and right side walls of the baler frame 19 (by bolts) (the straw pressing rod device 5 serves to press the straw).

[0075] A gearbox 7 is fixedly mounted (by bolts) at the upper center of the baler frame 19; the two power output shafts of the gearbox 7 are respectively (via bearing 8) rotatably connected to one end of the corresponding crank 8 (the gearbox 7 drives the crank 8 to perform a circular rotation), and the other end of the crank 8 (via bearing 9 and bolts) is rotatably connected to the other end of the connecting rod 9 of the piston 11 (the other end of the connecting rod 9 is provided with bearing hole 9, a bearing 9 is fixedly installed in the bearing hole 9, and a bolt passes through the bearing 9 and is threadedly connected to the threaded hole provided at the other end of the crank 8, so the connecting rod 9 can rotate relative to the crank 8. One end of the connecting rod 9 can rotate around the connecting shaft 23 through the connecting rod bearing 28, the connecting shaft 23 is fixedly connected to the piston frame 22, and the connecting rod 9 drives the piston 11 to perform linear reciprocating motion on the slide rail 10).

[0076] A dual independent knotting system (bolted) is fixedly mounted on the baler frame 19 and located above and behind the piston 11. Two auger shafts 2 are coaxially and symmetrically arranged above and behind the pickup table 3. The two opposite ends of the two auger shafts 2 pass through corresponding rotating bushings 62 and are rotatably connected to the baler frame 19. (Two bearings 63 are installed on the two opposite ends of the two auger shafts 2, and the two bearings 63 are fixed in their respective bearing seats 64. The two bearing seats 64 are fixed to the inner and outer side walls of the baler frame 19 by bolts.) Next, the two opposing ends of the two auger shafts 2 pass through their respective rotating bushings 62 and the side wall of the baler frame 19, with the two opposite ends of the two auger shafts 2 suspended in the air; a crankshaft 4 is located above and behind the auger shafts 2, and both ends of the crankshaft 4 (via bearing eleven) are rotatably connected to the left and right side walls of the baler frame 19; the straw-pulling fork 1 is mounted on the crankshaft 4; a compression chamber 14 and a baling chamber 17 are fixedly mounted on the baler frame 19, with the compression chamber 14 located above and behind the straw-pulling fork 1 and directly opposite the piston 11 (located below the knotter system 13).

[0077] The bundling chamber 17 is located behind the compression chamber 14 and the two are positioned opposite each other. The bundling chamber 17 is divided into two independent chambers by a partition. The output shaft of the gearbox 7 transmits power to the auger shaft 2, the pickup table 3, the piston 11, the crankshaft 4, and the knotter shaft 30 respectively through the chain drive system.

[0078] Furthermore, such as Figure 18 , Figure 19 As shown, the chain drive system includes chain drive mechanism 1 65, two chain drive mechanisms 2 66, chain drive mechanism 3 67, chain drive mechanism 4 68, chain drive mechanism 5 69 and chain drive mechanism 6 79.

[0079] The right power output shaft of the gearbox 7 is connected to the right end of the crankshaft 4 via chain drive mechanism 1 65. The left and right power output shafts of the gearbox 7 are connected to the two knotter shafts 30 via chain drive mechanism 2 66 respectively. The left power output shaft of the gearbox 7 is connected to the auger shaft 2 on the left side via chain drive mechanism 3 67 and chain drive mechanism 4 68. The auger shaft 2 on the left side is connected to the left end of the pickup platform 3 via chain drive mechanism 5 69. The right end of the pickup platform 3 is connected to the auger shaft 2 on the right side via chain drive mechanism 6 79.

[0080] Furthermore, the chain drive mechanism 65 includes a first sprocket 70, a second sprocket 71, and a first chain. The first sprocket 70 is fixedly mounted on the right power output shaft of the gearbox 7, and the second sprocket 71 is fixedly mounted on the right end of the crankshaft 4. The first sprocket 70 and the second sprocket 71 are connected by the first chain drive.

[0081] Both chain drive mechanisms 2 66 include sprocket 3 72, sprocket 4 36, and chain 2. The two sprocket 3 72 are fixedly mounted on the left and right power output shafts of the gearbox 7. The two sprocket 3 72 and the two sprocket 4 36, rotatably mounted on the two knotter shafts 30, are respectively connected via chain 2. Chain drive mechanism 3 67 includes sprocket 5 73, sprocket 6 74, and chain 3. Sprocket 5 73 is fixedly mounted on the left power output shaft of the gearbox 7. Sprocket 6 74 is fixedly mounted on a transition shaft. Both ends of the transition shaft (via bearing 12) are rotatably connected to the left side of the baler frame 19. Sprocket 5 73 and sprocket 6 74 are connected via chain 3. Chain drive mechanism 4 68 includes sprocket 75, sprocket 6 76, and chain 77. Chain drive mechanism 569 includes sprocket 77, sprocket 10, and chain 5. Sprocket 77 is fixedly mounted on the transition shaft, and sprocket 876 is fixedly mounted on the auger shaft 2 located on the left side. Sprocket 77 and sprocket 876 are connected by chain 4. Chain drive mechanism 69 includes sprocket 977, sprocket 1078, and chain 5. Sprocket 977 is fixedly mounted on the auger shaft 2 located on the left side, and sprocket 1078 is fixedly mounted on the left end of the pickup platform 3. Sprocket 977 and sprocket 1078 are connected by chain 5. Chain drive mechanism 69 includes sprocket 1180, sprocket 1281, and chain 6. Sprocket 1180 is fixedly mounted on the right end of the pickup platform 3, and sprocket 1281 is fixedly mounted on the auger shaft 2 located on the right side. Sprocket 1180 and sprocket 1281 are connected by chain 6.

[0082] The tractor's drive shaft is connected to the power input shaft (via spline) of the gearbox 7 via a drive shaft 82. The tractor transmits power to the gearbox 7 through the drive shaft 82, and the gearbox 7 transmits power to the crank 8 through the power output shaft, causing the crank 8 to rotate in a circular motion. The crank 8 then transmits power to the piston 11 through the connecting rod 9. A pickup platform 3 is located at the lower front of the baler frame 19. Two rotating bushings 62 are fixed to both sides of the baler frame 19 with bolts. The pickup platform connecting plate 61 is fixedly connected to the pickup platform 3. A through hole on the pickup platform connecting plate 61 is set on the outside of the rotating bushings 62, allowing the pickup platform 3 to rotate and float around the rotating bushings 62 via the pickup platform connecting plate 61. The straw-pressing device 5 is fixed to the left and right sides of the baler frame 19 with bolts. The straw-pressing device 5 is located above the pickup platform 3 and serves to press the straw. The gearbox 7 is fixed to the upper center of the baler frame 19 with bolts. The dual independent knotting system is fixedly connected to the middle of the baler frame 19 by connecting bolts (e.g. Figure 2 , Figure 7 (As shown); there are two counter systems 15, which are symmetrically arranged on both sides of the knotter frame 20. The two counter systems 15 are connected to the upper rear edge of the baler frame 19 by bolts.

[0083] The work process is as follows:

[0084] Straw is fed onto symmetrically arranged auger shafts 2 via a high-speed circumferential rotation of the picking platform 3. Two bearings 63 are installed on the auger shafts 2, and these bearings 63 are fixed within bearing seats 64. The bearing seats 64 are bolted to the inner and outer side walls of the baler frame 19. Figure 6 The auger shaft 2 shown in the diagram gathers the straw towards the center, and the straw-pulling fork 1 periodically pushes the gathered straw upwards into the compression chamber 14. The power input shaft of the gearbox 7 is connected to the drive shaft 82 via a spline. The tractor's power shaft transmits power to the power input shaft of the gearbox 7 via the drive shaft 82. The two power output shafts of the gearbox 7 are respectively rotatably connected to the corresponding cranks 8, driving the cranks 8 to perform circular rotation. The cranks 8 are rotatably connected to the connecting rod 9 via bearings 9 and bolts. The connecting rod 9 is rotatably connected to the connecting rod shaft 23 via connecting rod bearing 28. The connecting rod shaft 23 is fixedly connected to the piston frame 22. The connecting rod 9 drives the piston 11 to perform linear reciprocating motion on the slide rail 10. The slitting blade 12, fixedly mounted on the piston 11, and the slitting fixed blade 16, fixed to the rear of the knotter frame 20 and the baler frame 19, form a cross-cutting motion, cutting the straw or hay in the compression chamber 14 into left and right parts (the compression chamber 14 is a cavity, which is existing technology. The compression chamber 14 is located below the knotter system 13). At the same time, the piston 11 pushes the straw or hay compressed bale backward, into the baling chamber 17, which consists of two independent chambers separated by a partition. Figure 9 The counting tooth 46 rotates as the straw or hay bale moves (the counting tooth 46 rotates when it touches the bale during movement). The counting tooth 46 is coaxial with the transmission tooth 47, causing the transmission tooth 47 to rotate. The transmission tooth 47 drives the counter plate 48 to move upwards. When one of the two independent bales reaches the set straw or hay bale length, the lower semicircular hole of the corresponding counter plate 48 moves to the position of the transmission tooth 47. The reset plate 49 rotates around the rotation axis 88 and... Figure 13 The pawl 38 disengages, and under the spring force of spring 89, roller 39 and... Figure 14 When the roller baffle 37 contacts the camshaft, the corresponding counter system 15 is triggered. Upon triggering, roller 39 rotates around the camshaft 41 under the action of spring 89. At this time, roller 39 contacts roller baffle 37, and sprocket 36 drives the knotter shaft 30 to rotate, performing a knotting action, as shown in the diagram. Figure 15 As shown. Power is transmitted from gearbox 7 to sprocket 4 36, causing sprocket 4 36 to rotate freely around knotter shaft 30. When the timer system is triggered, it drives pawl 38 to rotate, which in turn drives cam 40 to rotate. Cam 40 is connected to large needle holder connecting arm 33 via hexagonal head bolt 85. Large needle holder connecting arm 33 and... Figure 2 The knotter shaft 30 in the middle passes through Figure 15The hexagonal socket bolt 83 and key 84 are connected. The large needle holder device 18 rotates along the rotary shaft 87. The movement of the large needle holder device 18 feeds the binding rope into the two knotters 31 on the corresponding side. At the same time, the knotters 31 rotate one revolution with the knotter shaft 30, completing one cycle and completing the binding rope knotting action (this efficient knotting method can quickly tie and fix the straw bales, ensuring the continuity and high efficiency of the baler during operation). Due to Figure 13 During one revolution of the middle cam 40, it pushes Figure 9 Roller 2 50 rotates. Under the action of cam 40, roller 2 50 rotates around its own threaded shaft, pushing the reset plate 49 to rotate (roller 2 50 has a threaded shaft passing through its center, which is fixed to the reset plate 49 by a nut. Roller 2 50 can rotate around its own threaded shaft. When cam 40 pushes roller 2 50, because the distance between the outer contour of cam 40 and the center changes, roller 2 50 in contact with cam 40 will undergo displacement. Since the reset plate 49 can only rotate, roller 2 50 will drive the reset plate 49 to rotate). This completely disengages the counter tooth plate 48 from the transmission tooth 47, realizing the conversion to the initial position, and resets the counter tooth plate 48 to the initial position. At this time, roller 1 39 disengages from roller baffle 37. The bundled straw bales slide down to the ground through the bundling chamber 17, completing one cycle of straw picking up and straw bales landing. The straw bales 93 after the knot 94 is tied are as follows: Figure 20 As shown, each bale of straw 93 has a binding rope 95 and two knots 94.

[0085] The dual independent knotting system in this invention shares a single piston 11.

[0086] like Figure 7 As shown, the bundling chambers 17 are separated by a partition and are not connected to each other, and are referred to as two independent cavities.

Claims

1. A straw and forage cutting and double independent knotting combination system, characterized in that: The system includes a straw and hay slitting mechanism and a dual independent knotting system. The straw and hay slitting mechanism includes a piston (11), a slide rail (10), a slitting stationary blade (16), and two slitting moving blades (12). The slide rail (10) is set longitudinally along the baler frame (19) and fixed on the baler frame (19). The piston (11) is slidably connected to the slide rail (10). Two slitting moving blades (12) are fixedly mounted on the rear end of the piston (11) and arranged vertically. The slitting stationary blade (16) is fixedly connected to the center of the rear part of the knotter frame (20) of the dual independent knotting system and the baler frame (19). The slitting moving blades (12) and the slitting stationary blades (16) are staggered. The dual independent knotting system is located behind the piston (11) and is set laterally and fixed on the baler frame (19).

2. The straw and forage cutting and double independent knotting combination system according to claim 1, characterized in that: Both the slitting vertical moving blade (12) and the slitting vertical stationary blade (16) are single-edged straight blades. The side of the slitting vertical moving blade (12) is fixedly connected to the rear side of the middle vertical plate (21) of the piston (11). The side of the slitting vertical stationary blade (16) is fixedly connected to the knotter frame (20) and the baler frame (19) respectively.

3. The straw and forage cutting and double independent knotting combination system according to claim 1 or 2, characterized in that: The piston (11) includes a lower cutter (29), a piston frame (22), a middle vertical plate (21), a connecting rod shaft (23), two connecting rods (9), and multiple adjusting plates (25). Multiple vertically arranged bearings (26) are fixedly installed on the left and right sides of the piston frame (22), and the multiple bearings (26) move in the slide rail (10). The adjusting plate (25) is provided with two bolt holes, one of which is an arc-shaped elongated hole. Each adjusting plate (25) is fixedly connected to the upper right side of the piston frame (22) by bolts passing through the two bolt holes. The adjusting plate (25) can swing through the arc-shaped elongated hole. Each adjusting plate (25) is fixedly installed with a horizontally arranged bearing (27). The bearing (27) is close to the piston frame (22). The piston frame (22) has a near-arc elongated hole. Multiple horizontally arranged bearings (27) are fixedly installed on the upper left side of the piston frame (22). The multiple bearings (27) are in contact with the left and right inner walls of the slide rail (10). A middle vertical plate (21) is fixed at the rear end of the piston frame (22). Two cutting vertical moving blades (12) are arranged side by side and fixed on the rear side of the middle vertical plate (21). The connecting rod shaft (23) is arranged in the middle of the piston frame (22) in the transverse direction and is fixedly connected to the piston frame (22). Two connecting rods (9) are arranged side by side and are fixedly connected to the outer circular surface of the corresponding connecting rod bearing (28). The connecting rod bearing (28) is fixedly mounted on the connecting rod shaft (23). A lower cutting blade (29) is fixedly installed at the lower rear end of the piston frame (22).

4. The straw and forage cutting and double independent knotting combination system according to claim 3, characterized in that: The dual independent knotting system includes a knotter system (13), two counter systems (15), and two large needle holder devices (18); the knotter system (13) includes a knotter frame (20), two knotter shafts (30), four knotters (31), two cam mechanisms (32), two large needle holder connecting arms (33), and two pull rods (34); the knotter frame (20) is fixedly mounted on the baler frame (19) and located above and behind the piston (11), and the two knotter shafts (30) are coaxial and symmetrically arranged on the knotter frame. Inside the body (20), the two opposite ends of the two knotter shafts (30) are rotatably connected to the support sleeve (35), and the two opposing ends of the two knotter shafts (30) are rotatably connected to the left and right side walls of the knotter frame (20). Two knotters (31) are installed on each of the two knotter shafts (30). The two opposing ends of the two knotter shafts (30) are rotatably equipped with sprockets four (36) of the baler chain drive system. The outer surfaces of the two sprockets four (36) are provided with rings, and roller baffles (37) are fixed on the inner walls of the rings. The inner side of the baffle (37) contacts the roller (39) of the cam mechanism (32). The cam (40) of the cam mechanism (32) is fixedly connected to the large needle holder connecting arm (33). The cam mechanism (32) can rotate along the knotter shaft (30) with the large needle holder connecting arm (33). One end of the pull rod (34) is hinged to the large needle holder connecting arm (33). The pull rod (34) and the large needle holder connecting arm (33) can rotate freely at the connection point. The large needle holder connecting arm (33) is fixedly connected to the knotter shaft (30). Two counter systems (15) Symmetrically arranged on the left and right sides of the knotter frame (20) and fixedly connected to the upper rear edge of the baler frame (19); two large needle holder devices (18) are rotatably connected to the corresponding pull rods (34), and at the same time, the two large needle holder devices (18) are also rotatably connected to the rotary shaft (87) at the rear of the baler frame (19); the rotary shaft (87) is arranged horizontally and its two ends are fixedly connected to the baler frame (19); a rotating shaft (88) is fixed at each of the left and right ends of the knotter frame (20), and the two rotating shafts (88) are coaxially arranged.

5. The straw and forage cutting and double independent knotting combination system according to claim 4, characterized in that: Both cam mechanisms (32) include a pawl (38), a roller (39), and a cam (40); the pawl (38) is rotatably connected to the cam shaft (41), and the pawl (38) can swing freely around the cam shaft (41); the roller (39) is rotatably connected to the roller shaft (42), the roller shaft (42) is fixed on the pawl (38), and the roller (39) can swing freely around the roller shaft (42); an extension arm (92) is fixed on the cam (40), and the extension arm (92) is connected to the pawl (38) by a spring (89).

6. The straw and forage cutting and double independent knotting combination system according to claim 4, characterized in that: Both of the large needle holder devices (18) include a large needle holder (43) and two large needles (44); one end of the large needle holder (43) is rotatably mounted on the rotary shaft (87) at the rear of the baler frame (19); the extended arm of the large needle holder (43) is rotatably connected to the pull rod (34) through the pin (45); and two large needles (44) are fixedly mounted side by side on the transverse arm of the large needle holder (43).

7. The straw and forage cutting and double independent knotting combination system according to claim 5, characterized in that: Both of the aforementioned counter systems (15) include counting teeth (46), transmission teeth (47), counter tooth plate (48), reset base plate (49), roller two (50), adjusting screw (51), handle (52), counter bracket (53), fixing sleeve (54), two limit covers (55), limit screw (56), lower fixing plate (57), upper fixing plate (58), and spring one (59); The counting tooth (46) has a central shaft in the middle. The central shaft of the counting tooth (46) passes through the bushing on the counter bracket (53) and two back-to-back limiting covers (55) in sequence. A transmission tooth (47) is provided between the two limiting covers (55). The central shaft of the counting tooth (46) passes through the transmission tooth (47) and the outer end of the central shaft of the counting tooth (46) is locked by a nut. The axle of the roller (50) passes through the reset seat plate (49) and is fastened by a nut. The lower fixed plate (57) is connected to the upper fixed plate. (58) One end is rotatably connected to the reset plate (49), and the other ends of the lower fixed plate (57) and the upper fixed plate (58) are respectively fixedly connected to both ends of the counter tooth plate (48); the reset plate (49) is engaged with the claw (38), and the reset plate (49) is provided with a shaft hole. The reset plate (49) is fitted onto the rotating shaft (88) through the shaft hole and can rotate around the rotating shaft (88). The lower fixed plate (57) is connected to the baler frame (19) through a spring three (90), and the reset plate (49) is connected to the baler frame. The frames (19) are connected by spring four (91); the inner arc surface of the counter tooth plate (48) is symmetrically provided with two semi-circular holes, and the inner arc surface of the counter tooth plate (48) is provided with multiple teeth between the two semi-circular holes. The teeth on the counter tooth plate (48) mesh with the transmission teeth (47). When the transmission teeth (47) rotate, they drive the counter tooth plate (48) to move up and down; the adjusting screw (51) passes through the upper end of the counter bracket (53), and spring one (59) is fitted on the adjusting screw (51) from top to bottom. The screw and nut (60) are fastened together. The adjusting screw (51) and the upper end of the counter bracket (53) are fastened together by the screw and nut (60). The head of the limiting screw (56) is provided with a threaded through hole (86). The adjusting screw (51) passes through the threaded through hole (86) of the limiting screw (56) and the two are threaded together. The limiting screw (56) passes through the counter bracket (53) and the fixing sleeve (54) and is threadedly connected to the threaded hole in the middle of the handle (52). The counter bracket (53) is fixed at the rear of the baler frame (19).

8. A double-baler comprising a straw and forage slitting and double independent knotting combination system as described in any one of claims 4-7, characterized in that: The double-pack baler includes a baler frame (19), with a pickup platform (3) located at the lower front of the baler frame (19). Both ends of the pickup platform (3) are fixedly connected to their respective pickup platform connecting plates (61). The pickup platform connecting plate (61) has a through hole, which is fitted onto the outside of a rotating bushing (62). The two rotating bushings (62) are coaxially arranged and fixedly connected to the left and right side walls of the baler frame (19), respectively. The pickup platform (3) picks up... The connecting plate (61) allows for rotation and floating around the rotating bushing (62); a straw pressing device (5) is installed above the picking platform (3), and the straw pressing device (5) is fixedly connected to the left and right side walls of the baler frame (19); a gearbox (7) is fixedly installed in the middle of the upper part of the baler frame (19); the left and right power output shafts of the gearbox (7) are respectively rotatably connected to one end of the corresponding crank (8), and the other end of the crank (8) is rotatably connected to the other end of the connecting rod (9) of the piston (11); double independent knotting The system is fixedly mounted on the baler frame (19) and located above and behind the piston (11). Two auger shafts (2) are coaxially and symmetrically arranged above and behind the pickup platform (3). The two opposite ends of the two auger shafts (2) pass through the corresponding rotating bushings (62) and are rotatably connected to the baler frame (19). A crankshaft (4) is arranged above and behind the auger shafts (2). The two ends of the crankshaft (4) are rotatably connected to the left and right side walls of the baler frame (19). The straw-pulling fork (1) is installed on the crankshaft (4). The frame (19) is fixedly equipped with a compression chamber (14) and a bundling chamber (17). The compression chamber (14) is located above and behind the forklift (1) and is directly opposite the piston (11). The bundling chamber (17) is located behind the compression chamber (14) and is directly opposite the compression chamber (14). The bundling chamber (17) is divided into two independent chambers by a partition. The output shaft of the gearbox (7) transmits power to the auger shaft (2), the pickup table (3), the piston (11), the crankshaft (4), and the knotter shaft (30) through the chain drive system.

9. The double-pack baling machine according to claim 8, characterized in that: The chain drive system includes chain drive mechanism one (65), two chain drive mechanisms two (66), chain drive mechanism three (67), chain drive mechanism four (68), chain drive mechanism five (69) and chain drive mechanism six (79). The right power output shaft of the gearbox (7) is connected to the right end of the crankshaft (4) via chain drive mechanism one (65). The left and right power output shafts of the gearbox (7) are connected to the two knotter shafts (30) via chain drive mechanism two (66). The left power output shaft of the gearbox (7) is connected to the auger shaft (2) on the left side via chain drive mechanism three (67) and chain drive mechanism four (68). The auger shaft (2) on the left side is connected to the left end of the pickup table (3) via chain drive mechanism five (69). The right end of the pickup table (3) is connected to the auger shaft (2) on the right side via chain drive mechanism six (79).

10. The double-pack bundling machine according to claim 9, characterized in that: The chain drive mechanism 1 (65) includes sprocket 1 (70), sprocket 2 (71) and chain 1. Sprocket 1 (70) is fixedly mounted on the right power output shaft of the gearbox (7), and sprocket 2 (71) is fixedly mounted on the right end of the crankshaft (4). Sprocket 1 (70) and sprocket 2 (71) are connected by chain 1. Both of the chain drive mechanisms (66) include a sprocket (72), a sprocket (36) and a chain. The two sprockets (72) are fixedly mounted on the left and right power output shafts of the gearbox (7). The two sprockets (72) are connected to the two sprockets (36) that are rotatably mounted on the two knotter shafts (30) by the chain drive. The chain drive mechanism three (67) includes sprocket five (73), sprocket six (74) and chain three. Sprocket five (73) is fixedly mounted on the left power output shaft of the gearbox (7), and sprocket six (74) is fixedly mounted on the transition shaft. The two ends of the transition shaft are rotatably connected to the left side of the baler frame (19). Sprocket five (73) and sprocket six (74) are connected by chain three. The chain drive mechanism four (68) includes sprocket seven (75), sprocket eight (76) and chain four. Sprocket seven (75) is fixedly mounted on the transition shaft, and sprocket eight (76) is fixedly mounted on the auger shaft (2) located on the left side. Sprocket seven (75) and sprocket eight (76) are connected by chain four. Chain drive mechanism five (69) includes sprocket nine (77), sprocket ten (78) and chain five. Sprocket nine (77) is fixedly mounted on the auger shaft (2) located on the left side, and sprocket ten (78) is fixedly mounted on the left end of the pickup platform (3). Sprocket nine (77) and sprocket ten (78) are connected by chain five. The chain drive mechanism six (79) includes sprocket eleven (80), sprocket twelve (81) and chain six. Sprocket eleven (80) is fixedly mounted on the right end of the pickup platform (3), and sprocket twelve (81) is fixedly mounted on the auger shaft (2) located on the right side. Sprocket eleven (80) and sprocket twelve (81) are connected by chain six.

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