Square bale collecting machine

Abstract

The invention relates to the technical field of pasture processing equipment, in particular to a square bale collecting machine. Comprising a dip angle pickup device, a horizontal transmission device, a straw bale leading-in device, a straw bale jacking device, a needle threading device assembly, a knotter assembly, a straw bale leading-out device and a bale collecting bin which are installed on a chassis assembly. The dip angle pickup device picks up small square bales on the ground and sends the small square bales to the horizontal transmission device, the horizontal transmission device sends the small square bales to an inlet of the bale collecting bin, the bale guiding device pushes the small square bales into the bale collecting bin, and the bale jacking device jacks the small square bales to the upper portion of the bale collecting bin. When the number of the small square bales in the bale collecting bin reaches a set value, the needle threading device assembly and the knotter assembly work at the same time to bundle the small square bales into a large square bale, the bale guiding device pushes the large square bale out of the bale collecting bin, and the large square bale falls on the ground. Small square bales can be picked up, stacked, extruded and bundled into large square bales, the operation efficiency is improved, and the cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of forage processing equipment, in particular to a square grass bale baler. Background Art

[0002] At present, there are many types of bales, including small square bales, large square bales, and large round bales. Small square bales are suitable for small plots, large square bales are suitable for large areas, and are convenient for users to collect and transport. Large round bales are limited in transportation and are not suitable for long-distance transportation. Small square bales are about 30-40 cm (width) × 40-50 cm (height) × 70-100 cm (length), and the weight of a single bale is usually 15-30 kg. The size of a large square bale is usually 1.1-2.2 meters long, 1.15 meters wide, and 0.8 meters high, and the weight of a single bale is usually 500-800 kg.

[0003] At present, the large square hay baler on the market is towed by a tractor and can complete the complex operations of automatic picking, chopping, pre-pressing, feeding, compressing, and bundling of hay, straw and other materials at one time. It has the advantages of high degree of automation, efficient operation, regular bundle shape, tight bundling, convenient storage and transportation, etc. However, it is expensive, generally 1.38-1.58 million, and you need to buy a manufacturer's tractor, the price is also 1 million, and the total price exceeds 2 million. For the majority of domestic farmers, the cost is too high, and the subsequent maintenance costs are also too high. Due to its high investment and long payback period, it has not been promoted and used in China.

[0004] In China, the bales are generally made into small square bales, which are picked up manually and stacked on trucks. Not only is the work efficiency low, but also as the people willing to work in this industry are gradually aging, there is a shortage of labor, and the labor cost increases year by year. At present, there is an urgent need for a square bale baler to replace the manual picking of small square bales and stack them into large square bales, thereby improving work efficiency and saving costs. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a square grass bale baler, which can pick up, stack, squeeze and bundle small square grass bales into large square bales, thereby improving working efficiency and significantly reducing costs.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A square straw bale baler comprises a chassis assembly and running wheels installed on the chassis assembly, and the equipment is towed by a tractor; it also comprises an inclination picker, a horizontal transmission device, a straw bale introduction device, a straw bale lifting device, a needle threader assembly, a knotter assembly, a straw bale output device and a bale bin installed on the chassis assembly; the inclination picker picks up small square straw bales on the ground and sends them to the horizontal transmission device, the horizontal transmission device sends the small square straw bales to the entrance of the bale bin, the straw bale introduction device pushes the small square straw bales into the bale bin, and the straw bale lifting device lifts the small square straw bales to the upper part of the bale bin; when the number of small square straw bales in the bale bin reaches a set value, the needle threader assembly and the knotter assembly work simultaneously to bundle multiple small square straw bales into a large square straw bale, the straw bale output device pushes the large square straw bale out of the bale bin, and the large square straw bale falls to the ground.

[0008] Furthermore, the chassis assembly includes a chassis and a lower bale box; the lower bale box is fixedly connected to the rear end of the chassis, the bale bin is fixedly connected to the top of the lower bale box, and the front end of the chassis is connected to the tractor.

[0009] Further, the bale guide device includes a lower rear door assembly, an upper rear door assembly and a grass pushing device; the lower rear door assembly includes a lower rear door cylinder and a lower rear door, the bottom of the lower rear door is hinged to the bottom of the rear side of the lower bale box, the cylinder barrel of the lower rear door cylinder is hinged to the chassis, and the piston rod head of the lower rear door cylinder is hinged to the top of the lower rear door; the upper rear door assembly includes an upper rear door cylinder and an upper rear door, the top of the upper rear door is hinged to the top of the rear side of the bale bin, the cylinder barrel of the upper rear door cylinder is hinged to the bale bin, and the piston rod head of the upper rear door cylinder is hinged to the bottom of the upper rear door;

[0010] The grass pushing device comprises a grass pushing frame and a grass pushing cylinder. The grass pushing frame is hinged on the front side of the bale bin, the cylinder barrel of the grass pushing cylinder is hinged on the bale bin, and the piston rod head of the grass pushing cylinder is hinged to the grass pushing frame. The lower rear bin door cylinder drives the lower rear bin door to flip downward and open, the upper rear bin door cylinder drives the upper rear bin door to flip upward and open, and the grass pushing cylinder drives the grass pushing frame to push backward, thereby pushing the large square grass bale out of the bale bin.

[0011] Furthermore, the tilt picker includes a body, a spring-tooth chain assembly, a tilt chain and a horizontal chain; the body is provided with a tilt panel slanting downward, and the tilt chain is installed at the tilt panel; a horizontal panel is provided at the top of the tilt panel, the horizontal chain is installed at the horizontal panel, and the spring-tooth chain assembly is arranged at the bottom of the tilt chain; the spring-tooth chain assembly, the tilt chain and the horizontal chain are all provided with grass transport plates, and the spring-tooth chain assembly is provided with a spring; the spring-tooth chain assembly lifts the grass bale from the ground to the tilt panel, the tilt chain moves the grass bale up to the horizontal panel, and the horizontal chain transmits the grass bale to the horizontal transmission device.

[0012] Furthermore, the grass transporting board is an acute-angled triangular board, and the grass transporting board is evenly distributed and installed on the chain to form a star-shaped rotating plate.

[0013] Furthermore, it also includes a torsion spring guide device, which is installed on one side of the tilt panel and the horizontal panel; the torsion spring guide device includes a torsion spring and a column, the column is vertically fixed to the body, and the torsion spring is installed on the column.

[0014] Furthermore, the horizontal transmission device includes an annular chain, a driving sprocket, a driven sprocket, a guide wheel and a tension wheel; the annular chain is installed on the driving sprocket, the driven sprocket, the guide wheel and the tension wheel.

[0015] Furthermore, the bale introduction device includes an introduction frame, an introduction cylinder and a bale introduction device bracket; the bale introduction device bracket is fixedly connected to the chassis assembly, and the top of the introduction frame is hinged to the bale introduction device bracket; the cylinder barrel of the introduction cylinder is hinged to the bale introduction device bracket, and the piston rod head of the introduction cylinder is connected to the middle of the introduction frame.

[0016] Furthermore, the bale lifting device includes a lifting cylinder, a bottom bracket, a vertical beam and a vertical slide; the vertical slide is fixedly connected to the chassis assembly, the vertical beam is fixedly connected to both sides of the bottom bracket, a pulley is provided on the vertical beam, and the pulley is installed on the vertical slide; the lifting cylinder is vertically arranged, and the piston rod head at its top is connected to the bottom bracket or the vertical beam, and the lifting cylinder is extended and retracted to drive the bottom bracket and the vertical beam to rise and fall along the vertical slide.

[0017] Furthermore, the knotter assembly includes a knotter, a transmission assembly and a baling cylinder, and the knotter shaft is hinged on the chassis assembly; the needle threader assembly includes a needle threader and a needle threader frame, multiple needle threaders are installed on the needle threader frame, and the needle threader frame is hinged on the chassis assembly; the baling cylinder is a double-piston rod cylinder, one piston rod head is connected to the transmission assembly, and the knotter shaft is driven to rotate through the transmission assembly, and the other piston rod head is connected to the needle threader frame, driving the needle threader frame to swing.

[0018] Furthermore, it also includes a baling cylinder and a baling frame. The baling frame is hinged on the lower rear door. The cylinder barrel of the baling cylinder is hinged on the lower rear door. The piston rod head of the baling cylinder is connected to the baling frame. The baling cylinder pushes the baling frame forward to fix the straw bale.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is provided with an angle picker, which can pick up small square bales on the ground and send them to the horizontal transmission device. The horizontal transmission device sends the small square bales to the entrance of the bale bin. The bale introduction device pushes the small square bales into the bale bin. The bale lifting device lifts the small square bales to the upper part of the bale bin and squeezes the bales. When the number of small square bales in the bale bin reaches a set value, the needle threader assembly and the knotter assembly work simultaneously to bundle multiple small square bales into a large square bale. The bale export device pushes the large square bale out of the bale bin, and the large square bale falls to the ground.

[0021] The present invention can collect, squeeze and bundle small square bundles, and turn small square bundles into large square bundles. With the help of a grabber, the large square bundles can be directly grabbed to a transport vehicle, which is convenient for transportation and greatly improves the work efficiency. Moreover, only one person is needed to complete the picking and bundling operation, which greatly reduces the labor cost.

[0022] At present, domestic small square balers have formed large-scale production with low costs. Small square balers can pick up, compress and bundle materials such as crop straw and forage into small square bales. The present invention can realize the picking up, stacking, squeezing and bundling of small square bales into large square bales. There is no need to purchase a high-horsepower tractor separately. A two-rope tractor can be used, which saves the cost of purchasing a tractor, saves manual picking time, and improves efficiency. The present invention can meet the basic needs of collecting and processing forage in agricultural and animal husbandry production in conjunction with a small square baler, and the cost is much lower than that of a large square baler, and has good application prospects.

[0023] 2. The inclination picker of the present invention comprises an inclination panel, a horizontal panel, a horizontal chain, an inclination chain and a spring-tooth chain assembly. The spring-tooth chain assembly, the inclination chain and the horizontal chain are all provided with grass transport plates, and the spring-tooth chain assembly is provided with a spring. When the picker collides with a straw bale while being towed by a tractor, the weight of the straw bale presses on the spring-tooth chain assembly. Under the reaction force of the spring, the spring-tooth chain assembly exerts an upward force on the straw bale, which bounces up the front end of the straw bale, and then the spring-tooth chain drives the straw bale upward to the inclination panel. The inclination chain drives the straw bale to move upward along the inclination panel. When the straw bale reaches the top, the horizontal chain drives the straw bale to move horizontally along the horizontal panel to the collection platform. The grass transport plate on the chain of the present invention pushes the straw bale to move along the inclination panel and the horizontal panel. The straw bale moves on the panel instead of on the chain, which avoids the phenomenon of grass leaves falling off and the bale being scattered when the rope is cut, and the straw bale loss rate is low. The present invention can not only pick up traditional bales (two-line bales and three-line bales), but also can pick up net bag bales without damage, truly realizing the replacement of manual picking by machinery, which not only saves time and labor, but also improves work quality and efficiency.

[0024] 3. The grass transport plate of the angle picker of the present invention adopts a special star-shaped rotating plate, which will not damage the grass bale during the transmission process.

[0025] 4. The present invention is provided with a torsion spring guide device to ensure that the straw bale moves along the panel. When the straw bale reaches the top, it is driven by the torsion spring guide device to rotate 90 degrees in the direction of the travel direction and transported horizontally toward the platform along the direction of the connecting arm, thereby transferring the straw bale to the platform.

[0026] 5. The bale lifting device of the present invention lifts the bale to the baling chamber composed of the lower bale box and the bale bin by guiding the vertical movement; once the baling chamber is filled, it plays a squeezing role to make the bale tight before tying the bale.

[0027] 6. The straw bale guide device of the present invention comprises a lower rear door assembly, an upper rear door assembly and a straw pushing device. After baling, the lower rear door oil cylinder drives the lower rear door to flip downward and open, while the upper rear door oil cylinder drives the upper rear door to flip upward and open, and the straw pushing oil cylinder drives the straw pushing oil cylinder to push backward, thereby smoothly pushing the large straw bale out of the bale collecting bin.

[0028] 7. The knotter assembly and the needle threader assembly of the present invention are driven to operate synchronously through the double piston rod oil cylinder and the transmission assembly, ensuring that the needle threading and knotting actions are strictly synchronized, ensuring that the needle threader can accurately deliver the rope and the knotter can quickly complete the fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 2 It is a schematic front view of the structure of the present invention.

[0031] Figure 3 It is a left side view schematically showing the structure of the present invention.

[0032] Figure 4 It is a right side view schematically showing the structure of the present invention.

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the chassis assembly of the present invention.

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the bale collecting bin of the present invention.

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the inclination pick-up of the present invention.

[0036] Figure 8 It is a schematic front view of the structure of the horizontal motion device of the present invention.

[0037] Fig. 9 The figure is a front view showing the structure of the straw bale introduction device of the present invention.

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure of the straw bale lifting device of the present invention.

[0039] Fig.11 It is a schematic diagram of the three-dimensional structure of the knotter assembly and the needle threader assembly of the present invention.

[0040] Markings in the figure: 1, chassis assembly; 2, running wheel; 3, tilt picker; 4, horizontal transmission device; 5, bale introduction device; 6, bale lifting device; 7, needle threader assembly; 8, knotter assembly; 9, bale export device; 10, bale bin; 11, chassis; 12, lower bale box; 13, knotter bracket; 31, machine body; 32, spring tooth chain assembly, 33, tilt chain, 34, horizontal chain; 35, tilt panel; 36, horizontal panel; 37, grass transport board; 38, torsion spring guide device; 39, torsion spring; 310, column; 41, ring chain; 4 2. Driving sprocket; 43. Driven sprocket; 44. Guide wheel; 45. Tensioning wheel; 51. Introducing frame; 52. Introducing cylinder; 53. Support for bale introducing device; 61. Lifting cylinder; 62. Bottom bracket; 63. Vertical beam; 64. Vertical slideway; 65. Pulley; 71. Needle threader; 72. Needle threader frame; 81 Knotter; 82. Transmission assembly; 83. Baling cylinder; 91. Lower rear door cylinder; 92. Lower rear door; 93. Upper rear door cylinder; 94. Upper rear door; 95. Pushing frame; 96. Pushing cylinder; 97. Baling cylinder; 98. Baling frame. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of the present invention, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0047] like Figure 1-4 As shown, a square bale baler includes a chassis assembly 1 and running wheels 2 installed on the chassis assembly 1, a tilt picker 3, a horizontal transmission device 4, a bale introduction device 5, a bale lifting device 6, a needle threader assembly 7, a knotter assembly 8, a bale output device 9 and a bale bin 10. Two running wheels 2 are installed on both sides of the rear end of the chassis assembly 1. The front end of the chassis assembly 1 is connected to a tractor, and the equipment is towed by the tractor to drive the equipment forward. The tilt picker 3 is hinged on the chassis 11, and the tilt picker 3 is lowered when working. Figure 1 The inclination pickup 3 is in the retracted state.

[0048] like Figure 4 , Figure 5 As shown, the chassis assembly 1 includes a chassis 11, a lower bale box 12, and a knotter bracket 13. The lower bale box 12 is a rectangular box body, which is fixed to the top surface of the rear end of the chassis 11, the bale bin 10 is fixed to the top of the lower bale box 12, and the knotter bracket 13 is fixed to the upper part of the front side of the lower bale box 12. The lower part of the front side of the lower bale box 12 is a bale entrance. The front end of the chassis 11 is connected to the tractor.

[0049] like Figure 7 As shown, the angle picker 3 is in the lowered working state, and the angle picker 3 includes a body 31, a spring-tooth chain assembly 32, an angle chain 33 and a horizontal chain 34. The body 31 is provided with a connecting arm hinged with the chassis, and the body 31 is provided with an angle panel 35 inclined downward, and the angle chain 33 is installed at the angle panel 35. A horizontal panel 36 is provided at the top of the angle panel 35, and the horizontal chain 34 is installed at the horizontal panel 36. The spring-tooth chain assembly 32 is arranged at the bottom of the angle chain 33; the spring-tooth chain assembly 32, the angle chain 33 and the horizontal chain 34 are all provided with a grass transporting plate 37, and the spring-tooth chain assembly 32 is provided with a spring; the spring-tooth chain assembly 32 lifts the small square grass bale from the ground to the angle panel 35, the tilt chain 33 moves the small square grass bale up to the horizontal panel, and the horizontal chain 34 transmits the grass bale to the horizontal transmission device 4.

[0050] The grass transporting plates 37 are acute-angled triangular plates, and the grass transporting plates 37 are evenly distributed and installed on the chains to form a star-shaped rotating plate.

[0051] The machine also includes a torsion spring guide device 38, which is installed on one side of the angle panel 35 and the horizontal panel 36; the torsion spring guide device 38 includes a torsion spring 39 and a column 310, the column 310 is vertically fixed to the machine body 31, and the torsion spring 39 is installed on the column 310. The torsion spring guide device 38 ensures that the straw bale moves along the panel. When the straw bale reaches the top, it is driven by the torsion spring guide device 38 to rotate 90 degrees in the direction of the connecting arm and transported horizontally to the horizontal transmission device 4, so that the straw bale is transmitted to the horizontal transmission device 4.

[0052] When the equipment collides with a small square bale during its travel, the weight of the bale presses on the spring-tooth chain assembly 32. Under the reaction force of the spring, the spring-tooth chain assembly 32 exerts an upward force on the bale, which bounces up the front end of the bale, and then the spring-tooth chain drives the bale upward to the angle chain 33. The bale is driven upward by the upward thrust of the angle chain 33. The chain is inserted into the bale slightly above the inclined plane. Due to the use of a special star-shaped rotating plate, the bale will not be damaged during the transmission process. When the bale reaches the top, it is driven by the torsion spring guide device 38 to rotate 90 degrees in the travel direction along the connecting arm direction, and transported to the horizontal transmission device 4, and the bale is transferred to the horizontal transmission device 4.

[0053] like Figure 8 As shown, the horizontal transmission device 4 includes an endless chain 41, a driving sprocket 42, a driven sprocket 43, a guide wheel 44 and a tension wheel 45. The endless chain 41 is mounted on the driving sprocket 42, the driven sprocket 43, the guide wheel and the tension wheel 45. The driving sprocket 42 is driven by a horizontal motor to rotate, and the chain runs from the driving sprocket 42 to the driven sprocket 43. The bale is transported to the bale entrance at the lower front side of the lower bale box 12 by the horizontal transmission device 4.

[0054] like Fig. 9 As shown, the bale introduction device 5 includes an introduction frame 51, an introduction cylinder 52 and a bale introduction device bracket 53. The top end of the bale introduction device bracket 53 is fixed to the lower bale box 12, and the bottom end is fixed to the chassis 11. The top end of the introduction frame 51 is hinged to the bale introduction device bracket 53, the cylinder barrel of the introduction cylinder 52 is hinged to the bale introduction device bracket 53, and the piston rod head of the introduction cylinder 52 is hinged to the middle of the introduction frame 51. The piston rod of the introduction cylinder 52 drives the introduction frame 51 to rotate, pushes the bale into the lower bale box 12, and pushes it onto the bottom bracket 62 of the bale lifting device 6.

[0055] like Figure 5 , Fig.10 As shown, the bale lifting device 6 includes a lifting cylinder 61, a bottom bracket 62, a vertical beam 63, a vertical slide 64 and a pulley 65. The vertical slide 64 is fixed to the left and right sides of the lower bale box 12 of the chassis assembly 1, and the vertical beam 63 is fixed to both sides of the bottom bracket 52. The bottom bracket 62 and the vertical beam 63 form a U-shaped bracket. Pulleys 65 are provided on the upper and lower parts of the vertical beam 63, and the pulley 65 is installed on the vertical slide 64. The lifting cylinder 61 is vertically arranged, and its cylinder barrel is fixed to the chassis 11. The piston rod head at the top is fixed to the bottom of the vertical beam 63. The lifting cylinder 61 is telescopic to drive the bottom bracket 62 to rise and fall along the vertical slide 64.

[0056] The bale lifting device 6 of the present invention lifts the bale to the baling chamber formed by the lower bale box 12 and the bale bin 10 by guiding the vertical movement; once the baling chamber is filled, the bale lifting device 6 plays a squeezing role to make the package tight before tying the bale.

[0057] like Figure 5 , 11 As shown, the knotter assembly 8 includes a knotter 81, a transmission assembly 82 and a baling cylinder 83, and the knotter shaft is hinged on the knotter bracket 13 of the chassis assembly 1. The needle threader assembly 7 includes a needle threader 71 and a needle threader frame 72, and multiple needle threaders 71 are installed on the needle threader frame 72, and the needle threader frame 72 is hinged on the chassis 11. The baling cylinder 83 is a double piston rod cylinder, one piston rod head is connected to the transmission assembly 82, and the knotter shaft is driven to rotate through the transmission assembly 82, and the other piston rod head is connected to the needle threader frame 72, which drives the needle threader frame 72 to swing. The knotter assembly 8 and the needle threader assembly 7 are driven to operate synchronously through the double piston rod cylinder and the transmission assembly 82, ensuring that the needle threading and knotting actions are strictly synchronized, ensuring that the needle threader delivers the rope accurately, and the knotter is quickly fixed.

[0058] like Figure 1 , Figure 3 , Figure 6 As shown, the bale bin 10 is a rectangular frame box structure. The bale guide device 9 includes a lower rear bin door assembly, an upper rear bin door assembly and a grass pushing device, wherein the lower rear bin door assembly is mounted on the rear side of the lower bale box 12, the upper rear bin door assembly is mounted on the rear side of the bale bin 10, and the grass pushing device is mounted on the front side of the bale bin 10.

[0059] The lower rear door assembly includes a lower rear door cylinder 91 and a lower rear door 92. The bottom of the lower rear door 92 is hinged to the bottom of the rear side of the lower bale box 12. The cylinder barrel of the lower rear door cylinder 91 is hinged to the chassis 11. The piston rod head of the lower rear door cylinder 91 is hinged to the top of the lower rear door 92. The upper rear door assembly includes an upper rear door cylinder 93 and an upper rear door 94. The top of the upper rear door 94 is hinged to the top of the rear side of the bale bin 10. The cylinder barrel of the upper rear door cylinder 93 is hinged to the bale bin 10. The piston rod head of the upper rear door cylinder 94 is hinged to the bottom of the upper rear door 93.

[0060] The grass pushing device includes a grass pushing frame 95 and a grass pushing cylinder 96 . The grass pushing frame 95 is hinged to the front side of the bale collecting bin 10 . The cylinder barrel of the grass pushing cylinder 96 is hinged to the bale collecting bin 10 . The piston rod head of the grass pushing cylinder 96 is hinged to the grass pushing frame 95 .

[0061] The lower rear door cylinder 91 drives the lower rear door 92 to flip downward and open, the upper rear door cylinder 93 drives the upper rear door 94 to flip upward and open, and the grass pushing cylinder 95 drives the grass pushing frame 95 to rotate, so that the grass pushing frame 95 is pushed backward, and then the large square grass bale is pushed out of the bale collecting bin 10.

[0062] It also includes a baling cylinder 97 and a baling frame 98. The baling frame 98 is hinged on the lower rear door 92. The cylinder barrel of the baling cylinder 97 is hinged on the lower rear door 92. The piston rod head of the baling cylinder 97 is connected to the baling frame 98. The baling cylinder 97 drives the baling frame 98 to rotate, so that the baling frame 98 is pushed forward. The baling frame 98 is used to fix the straw bales.

[0063] like Figure 1-11 As shown, the working principle and working process of the present invention are as follows:

[0064] 1) The equipment is pulled by a tractor, driving the equipment forward. When the equipment collides with a small square bale during its travel, the weight of the bale presses on the spring-tooth chain assembly 32. Under the reaction force of the spring, the spring-tooth chain assembly 32 exerts an upward force on the bale, which bounces up the front end of the bale, and then the spring-tooth chain drives the bale upward to the angle chain 33. The upward thrust of the angle chain 33 drives the bale upward. Due to the use of a special star-shaped rotating plate, the bale will not be damaged during the transmission process. When the bale reaches the top, it is driven by the torsion spring guide device 38 to rotate 90 degrees in the travel direction and transport it to the horizontal transmission device 4 along the direction of the connecting arm, and the bale is transmitted to the horizontal transmission device 4.

[0065] 2) The horizontal transmission device 4 is driven by a motor to drive the sprocket chain to transmit the platform bale to the bale entrance at the lower front side of the lower bale collection box 12, leaving space for subsequent bales to be loaded, and multiple bales are gathered into a row to form the first layer of bales.

[0066] 3) The piston rod of the introduction cylinder 52 of the bale introduction device 5 drives the introduction frame 51 to rotate, and pushes the first layer of bales onto the bottom bracket 62 of the bale lifting device 6 in the lower bale box 12.

[0067] 4) The lifting cylinder 61 of the bale lifting device 6 extends to drive the bottom bracket 62 to rise along the vertical slide 64. After rising to the set height, the baling cylinder 97 pushes the baling frame 98 forward, and the baling frame 98 fixes the bale. The bale is in a suspended state as the first layer of bales.

[0068] 5) Repeat steps 1) to 3) to transport the second layer of bales to the bottom bracket 62. At this time, the first layer of bales is located above the second layer of bales. The baling cylinder 97 pushes the baling frame 98 backwards, and the baling frame 98 is retracted. At this time, the first layer of bales falls on the second layer of bales.

[0069] 6) Similarly, when the number of bales on the bottom bracket 62 reaches the set number of layers, the knotter assembly 8 and the needle threader assembly 7 are driven to operate synchronously through the double piston rod cylinder and the transmission assembly 82 to complete the baling.

[0070] 7) The lower rear door cylinder 91 drives the lower rear door 92 to flip downward and open, the upper rear door cylinder 93 drives the upper rear door 94 to flip upward and open, the grass pushing cylinder 95 drives the grass pushing frame 95 to push backward, and the large square grass bale is pushed out of the bale collecting bin 10, and the large square grass bale falls to the ground, realizing the discharge of the large square grass bale and completing the operation.

[0071] The present invention can pick up, stack, squeeze and bundle small square bundles, and turn small square bundles into large square bundles. With the help of a grabber, the large square bundles can be directly grabbed to a transport vehicle, which is convenient for transportation and greatly improves the work efficiency. Moreover, only one person is needed to complete the picking and bundling operation, which greatly reduces the labor cost.

[0072] At present, domestic small square balers have formed large-scale production with low costs. Small square balers can pick up, compress and bundle materials such as crop straw and forage into small square bales. The present invention can realize the picking up, stacking, squeezing and bundling of small square bales into large square bales. There is no need to purchase a high-horsepower tractor separately. A two-rope tractor can be used, which saves the cost of purchasing a tractor, saves manual picking time, and improves efficiency. The present invention can meet the basic needs of collecting and processing forage in agricultural and animal husbandry production in conjunction with a small square baler, and the cost is much lower than that of a large square baler, and has good application prospects.

[0073] The above descriptions are only some specific implementation methods of the present invention, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A square grass bale baler, comprising a chassis assembly and running wheels mounted on the chassis assembly, wherein the chassis assembly is connected to a tractor and is towed by the tractor, and is characterized in that: It also includes a tilt picker, a horizontal transmission device, a bale introduction device, a bale lifting device, a needle threader assembly, a knotter assembly, a bale outlet device and a bale collection bin installed on the chassis assembly; The angle picker picks up the small square bales on the ground and sends them to the horizontal transmission device, the horizontal transmission device sends the small square bales to the entrance of the bale bin, the bale introduction device pushes the small square bales into the bale bin, and the bale lifting device lifts the small square bales to the upper part of the bale bin; when the number of small square bales in the bale bin reaches the set value, the needle threader assembly and the knotter assembly work simultaneously to bundle multiple small square bales into a large square bale, the bale exporting device pushes the large square bale out of the bale bin, and the large square bale falls to the ground.

2. The square grass bale baler according to claim 1, characterized in that: The chassis assembly comprises a chassis and a lower bale box; the lower bale box is fixedly connected to the rear end of the chassis, the bale bin is fixedly connected to the top of the lower bale box, and the front end of the chassis is connected to the tractor.

3. The square grass bale baler according to claim 2, characterized in that: The bale guide device comprises a lower rear door assembly, an upper rear door assembly and a grass pushing device; The lower rear door assembly comprises a lower rear door oil cylinder and a lower rear door, the bottom of the lower rear door is hinged to the bottom of the rear side of the lower bale box, the cylinder barrel of the lower rear door oil cylinder is hinged to the chassis, and the piston rod head of the lower rear door oil cylinder is hinged to the top of the lower rear door; The upper rear door assembly comprises an upper rear door oil cylinder and an upper rear door, the top of the upper rear door is hinged to the top of the rear side of the bunker, the cylinder barrel of the upper rear door oil cylinder is hinged to the bunker, and the piston rod head of the upper rear door oil cylinder is hinged to the bottom of the upper rear door; The grass pushing device comprises a grass pushing frame and a grass pushing cylinder, the grass pushing frame is hinged on the front side of the bale collecting bin, the cylinder barrel of the grass pushing cylinder is hinged on the bale collecting bin, and the piston rod head of the grass pushing cylinder is hinged to the grass pushing frame; The lower rear door oil cylinder drives the lower rear door to flip downward and open, the upper rear door oil cylinder drives the upper rear door to flip upward and open, and the grass pushing oil cylinder drives the grass pushing frame to push backward, thereby pushing the large grass bale out of the bale collecting bin.

4. The square grass bale baler according to claim 1, characterized in that: The tilt picker includes a body, a spring-tooth chain assembly, a tilt chain and a horizontal chain; the body is provided with a tilt panel inclined downward, and the tilt chain is installed at the tilt panel; a horizontal panel is provided at the top of the tilt panel, and the horizontal chain is installed at the horizontal panel, and the spring-tooth chain assembly is arranged at the bottom of the tilt chain; the spring-tooth chain assembly, the tilt chain and the horizontal chain are all provided with grass transport plates, and the spring-tooth chain assembly is provided with a spring; the spring-tooth chain assembly lifts the grass bale from the ground to the tilt panel, the tilt chain moves the grass bale up to the horizontal panel, and the horizontal chain transmits the grass bale to the horizontal transmission device.

5. The square grass bale baler according to claim 4, characterized in that: The grass transporting plates are acute-angle triangular plates, and the grass transporting plates are evenly distributed and installed on the chains to form a star-shaped rotating plate.

6. The square grass bale baler according to claim 4, characterized in that: It also includes a torsion spring guide device, which is installed on one side of the inclination panel and the horizontal panel; the torsion spring guide device includes a torsion spring and a column, the column is vertically fixed to the body, and the torsion spring is installed on the column.

7. The square grass bale baler according to claim 1, characterized in that: The horizontal transmission device comprises an annular chain, a driving sprocket, a driven sprocket, a guide wheel and a tension wheel; the annular chain is installed on the driving sprocket, the driven sprocket, the guide wheel and the tension wheel.

8. The square grass bale baler according to claim 1, characterized in that: The bale introduction device comprises an introduction frame, an introduction cylinder and a bale introduction device bracket; the bale introduction device bracket is fixedly connected to the chassis assembly, and the top end of the introduction frame is hinged to the bale introduction device bracket; the cylinder barrel of the introduction cylinder is hinged to the bale introduction device bracket, and the piston rod head of the introduction cylinder is connected to the middle of the introduction frame.

9. The square grass bale baler according to claim 1, characterized in that: The straw bale lifting device comprises a lifting cylinder, a bottom bracket, a vertical beam and a vertical slide; the vertical slide is fixedly connected to the chassis assembly, the vertical beam is fixedly connected to both sides of the bottom bracket, a pulley is provided on the vertical beam, and the pulley is installed on the vertical slide; the lifting cylinder is vertically arranged, and the piston rod head at the top is connected to the bottom bracket or the vertical beam, and the lifting cylinder is extended and retracted to drive the bottom bracket and the vertical beam to rise and fall along the vertical slide.

10. The square grass bale baler according to claim 1, characterized in that: The knotter assembly includes a knotter, a transmission assembly and a baling cylinder, and the knotter shaft is hinged on the chassis assembly; the needle threader assembly includes a needle threader and a needle threader frame, and multiple needle threaders are installed on the needle threader frame, and the needle threader frame is hinged on the chassis assembly; the baling cylinder is a double-piston rod cylinder, one piston rod head is connected to the transmission assembly, and the knotter shaft is driven to rotate through the transmission assembly, and the other piston rod head is connected to the needle threader frame, driving the needle threader frame to swing.

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