A press for processing high-density alfalfa bales
By designing a press with a spiral conveyor plate and discharge components, the problem of feeding interruption caused by the easy accumulation of alfalfa hay during the pressurization process was solved. The dust pollution was solved through a dust prevention system, achieving continuous and stable feeding of hay and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUMEN DAYE GRASS IND SCI & TECH DEV
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, alfalfa hay is prone to accumulating during the pressurization process, leading to feeding interruptions, affecting the normal operation of the equipment, and the dust pollution problem has not been effectively solved.
A press was designed, which includes a feeding cylinder, a discharge assembly, and a dust prevention system. The press conveys the forage through a spiral conveyor plate and uses the pusher block and drop plate in the discharge assembly to achieve continuous unblocking and densification of the forage. At the same time, the press uses an exhaust fan and a water tank to collect dust and prevent dust pollution.
It achieves continuous and stable feeding of forage, avoids accumulation and loosening, improves production efficiency, effectively solves the dust pollution problem, and protects the operating environment of the equipment and the health of the operators.
Smart Images

Figure CN224419434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural crop processing technology, specifically a press for processing high-density alfalfa bales. Background Technology
[0002] In the large-scale processing of alfalfa, compressing alfalfa hay into high-density bales is a key step in improving storage efficiency and reducing transportation costs. As the core equipment, the stability and continuity of the feeding of the press directly affect the processing quality and production efficiency of the bales.
[0003] In existing technologies, such as the Chinese patent CN207476266U, a fixed hay baling and pressing machine includes a settling bin and a pressing and pressing bin mounted on a frame. The settling bin has a feed inlet at its upper end, and a weight sensor on its bottom plate. A pusher plate on one side of the bottom of the settling bin pushes the hay into the pressing and pressing bin. The settling bin body on the opposite side of the pusher plate is connected to the pressing and pressing bin. A discharge port for forming hay bales is connected to one side of the pressing and pressing bin. A pressure plate on the bin body opposite the discharge port compresses the hay in the pressing and pressing bin. A vertically liftable cutting baffle is located at the connection between the discharge port and the pressing and pressing bin. The pusher plate and pressure plate work together to compress and form the hay bales multiple times, significantly improving the density of the bales and avoiding the problems of loose bales that are difficult to transport and store. The weight of the formed hay bales is consistent, facilitating measurement. The structure is simple and reasonable, and the operation is convenient and suitable for widespread application.
[0004] Although the above technical solutions have the aforementioned technical advantages, their disadvantages are as follows: due to the characteristics of dry hay being easy to scatter and damp hay being easy to clump, the density of hay is uneven before it is pressurized. When the hay is transported to the pressurization process, if it cannot be guided to the pushing area in time, the hay may accumulate at the discharge port, causing the feeding to be interrupted, which in turn affects the normal operation of the equipment. This not only requires frequent manual cleaning, but also reduces production efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a press for processing high-density alfalfa bales, which solves the problem of alfalfa hay accumulating and causing feeding interruptions.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a press for processing high-density alfalfa bales, comprising a feeding cylinder, a feed hopper fixedly connected to the top of the feeding cylinder, a drive shaft rotatably connected to the center of the feeding cylinder, a spiral conveyor plate fixedly connected to the outer side of the drive shaft, and further comprising: a discharge assembly, the discharge assembly fixedly connected to the bottom of the feeding cylinder, the discharge assembly comprising a feeding shell, a drive motor fixedly connected to the outer side of the feeding shell, and a crankshaft fixedly connected to the output end of the drive motor. A movable rod is rotatably connected to the outer side of the crankshaft. A pusher block is rotatably connected to the end of the movable rod away from the crankshaft. A discharge plate is rotatably connected to the top of the pusher block. Slider blocks are rotatably connected to both sides of the top of the discharge plate. Limiting guide rails are slidably connected to the outer wall of the sliders. The pusher block can push the grass towards the discharge port. As the cross-section of the discharge port of the feeding shell gradually decreases, the material's movement space is continuously compressed. Under the pushing force of the pusher block, the gaps between the materials are continuously squeezed out, and the fibers intertwine tightly, thereby achieving the densification treatment of the material.
[0007] Preferably, the outer wall of the spiral conveyor plate is slidably connected to the inner wall of the feeding cylinder, and the bottom of the feeding cylinder is fixedly connected to the top of the feeding shell. During the rotation of the spiral conveyor plate, the alfalfa hay can be conveyed forward along the length of the feeding cylinder, and the hay is further loosened by the tumbling during the spiral propulsion process.
[0008] Preferably, the outer wall of the crankshaft is rotatably connected to the inner wall of the feeding shell, and the inner wall of the feeding shell is slidably connected to the outer wall of the pusher block. When the crankshaft rotates, it drives the pusher block to reciprocate on the inner wall of the feeding shell through the movable rod.
[0009] Preferably, the outer wall of the limiting guide rail is fixedly connected to the inner wall of the feeding shell, a dustproof shell is fixedly connected to the side of the feeding cylinder away from the feeding hopper, and an air suction fan is fixedly connected to the side of the drive shaft away from the spiral conveyor plate. The air suction fan is located inside the dustproof shell, and the drive shaft drives the air suction fan inside the dustproof shell to rotate synchronously. The airflow generated can suck the dust generated during the feeding process into the dustproof shell.
[0010] Preferably, a water tank is fixedly connected to the bottom of the dustproof shell, and the water tank can store the collected dust in the form of wastewater.
[0011] The beneficial effects of this utility model are as follows:
[0012] (i) The equipment is equipped with a discharge component. During the reciprocating motion of the pusher block, the top of the discharge plate rotates and moves accordingly. Specifically, the bottom of the discharge plate moves horizontally with the pusher block, while the top moves vertically along the limit guide rail under the restriction of the slider. This causes the slope of the inclined surface to change continuously, which not only prevents the grass from falling directly onto the top of the pusher block, but also clears the falling grass, ensuring the smoothness of continuous feeding.
[0013] (ii) By setting up a water tank, the drive shaft drives the suction fan inside the dustproof shell to rotate synchronously during the feeding process. The airflow generated can suck the dust generated during the feeding process into the dustproof shell. Finally, the dust is collected in the water tank and stored in the form of sewage, which solves the dust pollution problem in the alfalfa processing process and protects the operating environment of the equipment and the health of the operators. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the material discharge assembly of this utility model;
[0017] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A.
[0018] In the diagram: 1. Feeding cylinder; 2. Feeding hopper; 3. Drive shaft; 4. Screw conveyor plate; 5. Dustproof shell; 6. Exhaust fan; 7. Water tank; 8. Discharge assembly; 81. Feeding shell; 82. Drive motor; 83. Crankshaft; 84. Movable rod; 85. Push block; 86. Drop plate; 87. Slider; 88. Limit guide rail. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example: Please refer to Figure 1-4This utility model provides a technical solution: a press for processing high-density alfalfa bales, including a feeding cylinder 1, a feed hopper 2 fixedly connected to the top of the feeding cylinder 1, a drive shaft 3 rotatably connected to the center of the feeding cylinder 1, and a spiral conveyor plate 4 fixedly connected to the outside of the drive shaft 3. The alfalfa bales to be processed enter the feeding cylinder 1 from the feed hopper 2. At this time, a motor installed on the outside of the feeding cylinder 1 drives the drive shaft 3 to rotate, which in turn drives the spiral conveyor plate 4 to rotate synchronously. During the rotation of the spiral conveyor plate 4, the alfalfa bales can be conveyed forward along the length of the feeding cylinder 1, and the bales are further loosened by the tumbling during the spiral propulsion process. The press also includes:
[0021] The discharge assembly 8 is fixedly connected to the bottom of the feeding cylinder 1. The discharge assembly 8 includes a feeding shell 81. A drive motor 82 is fixedly connected to the outer side of the feeding shell 81. A crankshaft 83 is fixedly connected to the output end of the drive motor 82. A movable rod 84 is rotatably connected to the outer side of the crankshaft 83. A pusher block 85 is rotatably connected to the end of the movable rod 84 away from the crankshaft 83. A drop plate 86 is rotatably connected to the top of the pusher block 85. Slider blocks 87 are rotatably connected to both sides of the top of the drop plate 86. A limit guide rail 88 is slidably connected to the outer wall of the slider 87. The outer wall of the spiral conveyor plate 4 is slidably connected to the inner wall of the feeding cylinder 1. The bottom of the feeding cylinder 1 is fixedly connected to the top of the feeding shell 81. The outer wall of the crankshaft 83 is rotatably connected to the inner wall of the feeding shell 81. The inner wall of the feeding shell 81 is slidably connected to the outer wall of the pusher block 85. The drive motor 82 starts and drives the crankshaft 83 within the feeding shell 81. When the crankshaft 83 rotates, it drives the pusher block 85 to reciprocate on the inner wall of the feeding shell 81 via the movable rod 84. This pushes the straw that keeps falling in front of the pusher block 85 toward the discharge port. As the cross-section of the discharge port of the feeding shell 81 gradually decreases, the space for material movement is continuously compressed. Under the pushing force of the pusher block 85, the gaps between the materials are continuously squeezed out, and the fibers intertwine tightly, thereby achieving the densification of the material. During the reciprocating motion of the pusher block 85, the drop plate 86 connected to its top moves accordingly. Specifically, the bottom of the drop plate 86 moves horizontally with the pusher block 85, while its top moves vertically along the limit guide rail 88 under the restriction of the slider 87. This continuously changes the slope of its inclined surface, preventing the straw from falling directly onto the top of the pusher block 85 and clearing the falling straw, ensuring the smoothness of continuous feeding.
[0022] The outer wall of the limiting guide rail 88 is fixedly connected to the inner wall of the feeding shell 81. A dustproof shell 5 is fixedly connected to the side of the feeding cylinder 1 away from the feeding hopper 2. An air suction fan 6 is fixedly connected to the side of the drive shaft 3 away from the screw conveyor plate 4. The air suction fan 6 is located inside the dustproof shell 5. A water tank 7 is fixedly connected to the bottom of the dustproof shell 5. The drive shaft 3 drives the air suction fan 6 inside the dustproof shell 5 to rotate synchronously. The airflow generated can suck the dust generated during the feeding process into the dustproof shell 5. Finally, the dust is collected in the water tank 7 fixedly connected to the bottom of the dustproof shell 5 and stored in the form of sewage, which solves the dust pollution problem in the alfalfa processing process and protects the operating environment of the equipment and the health of the operators.
[0023] Working principle: When the equipment is started, the alfalfa hay to be processed enters the feeding cylinder 1 from the feed hopper 2. At this time, the motor installed on the outside of the feeding cylinder 1 drives the drive shaft 3 to rotate, which in turn drives the screw conveyor plate 4 to rotate synchronously. During the rotation of the screw conveyor plate 4, the alfalfa hay can be conveyed forward along the length of the feeding cylinder 1. The hay is further loosened by the tumbling during the screw propulsion process. When the hay is separated from the screw conveyor plate 4, it can fall into the discharge assembly 8 under the action of gravity.
[0024] Subsequently, the drive motor 82 starts and drives the crankshaft 83 to rotate inside the feeding shell 81. When the crankshaft 83 rotates, it drives the pusher block 85 to reciprocate on the inner wall of the feeding shell 81 through the movable rod 84, pushing the grass that keeps falling in front of the pusher block 85 toward the discharge port. As the cross-section of the discharge port of the feeding shell 81 gradually decreases, the space for material movement is continuously compressed. Under the pushing force of the pusher block 85, the gaps between the materials are continuously squeezed out, and the fibers are tightly interwoven, thereby achieving the densification treatment of the material.
[0025] During the reciprocating motion of the pusher block 85, the drop plate 86 connected to its top rotates accordingly. Specifically, the bottom of the drop plate 86 moves horizontally with the pusher block 85, while its top moves vertically along the limit guide rail 88 under the restriction of the slider 87. This causes the slope of the plate to change continuously, preventing the straw from falling directly onto the top of the pusher block 85 and clearing the falling straw, thus ensuring the smoothness of continuous feeding.
[0026] At the same time, the drive shaft 3 drives the suction fan 6 inside the dustproof shell 5 to rotate synchronously. The airflow generated can suck the dust generated during the feeding process into the dustproof shell 5. Finally, the dust is collected in the water tank 7 and stored in the form of sewage, which solves the dust pollution problem in the alfalfa processing process and protects the operating environment of the equipment and the health of the operators.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A kind of alfalfa high-density bale processing presser, including feeding cylinder (1), the top of the feeding cylinder (1) is fixedly connected with feed hopper (2), the center of the feeding cylinder (1) is rotatably connected with driving shaft (3), the outside of the driving shaft (3) is fixedly connected with spiral conveying plate (4), it is characterized by, Also includes: The discharge assembly (8) is fixedly connected to the bottom of the feeding cylinder (1). The discharge assembly (8) includes a feeding shell (81). A drive motor (82) is fixedly connected to the outer side of the feeding shell (81). A crankshaft (83) is fixedly connected to the output end of the drive motor (82). A movable rod (84) is rotatably connected to the outer side of the crankshaft (83). A pusher block (85) is rotatably connected to the end of the movable rod (84) away from the crankshaft (83). A drop plate (86) is rotatably connected to the top of the pusher block (85). A slider (87) is rotatably connected to both sides of the top of the drop plate (86). A limit guide rail (88) is slidably connected to the outer wall of the slider (87).
2. The press for processing high-density alfalfa bales according to claim 1, characterized in that: The outer wall of the spiral conveyor plate (4) is slidably connected to the inner wall of the feeding cylinder (1), and the bottom of the feeding cylinder (1) is fixedly connected to the top of the feeding shell (81).
3. The press for processing high-density alfalfa bales according to claim 1, characterized in that: The outer wall of the crankshaft (83) is rotatably connected to the inner wall of the feed housing (81), and the inner wall of the feed housing (81) is slidably connected to the outer wall of the pusher block (85).
4. The press for processing high-density alfalfa bales according to claim 1, characterized in that: The outer wall of the limiting guide rail (88) is fixedly connected to the inner wall of the feeding shell (81), and a dustproof shell (5) is fixedly connected to the side of the feeding cylinder (1) away from the feeding hopper (2).
5. A press for processing high-density alfalfa bales according to claim 1, characterized in that: An air intake fan (6) is fixedly connected to the side of the drive shaft (3) away from the spiral conveyor plate (4), and the air intake fan (6) is located inside the dustproof shell (5).
6. A press for processing high-density alfalfa bales according to claim 4, characterized in that: A water tank (7) is fixedly connected to the bottom of the dustproof shell (5).