Polygonatum sibiricum seed continuous peeling machine
By designing a continuous peeling machine for Polygonatum seeds, which uses rubbing belts and flexible brush strips or brush heads for automated processing, the problems of low efficiency, high cost and unstable quality of traditional manual processing have been solved, achieving efficient and low-cost seed cleaning results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIANNING AGRI ACADEMY OF SCI
- Filing Date
- 2026-04-01
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional methods for processing Polygonatum seeds are inefficient, costly, and have poor quality stability. They rely on manual operation and are prone to incomplete cleaning, impurity residue, and significant loss of small seeds.
Design a continuous peeling machine for Polygonatum seeds, which uses a rubbing belt and flexible brush strips or brush heads to rub, squeeze and clean Polygonatum seeds, and combines motor drive and hydraulic control to achieve automated continuous processing.
It improved processing efficiency, reduced labor costs, ensured the stability of the cleaning effect and the integrity of the seeds, reduced impurity residue, and enhanced the benefits of industrialized production.
Smart Images
Figure CN122004010A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural technology, and in particular to a continuous peeling machine for Polygonatum seeds. Background Technology
[0002] As an important traditional Chinese medicine, the demand for high-quality seeds for the artificial propagation and industrial cultivation of Polygonatum is increasing. At the upstream of this industry chain, the efficiency, cost, and quality of seed treatment are key factors determining the success of seedling cultivation and industrial benefits.
[0003] The traditional process for processing Polygonatum seeds is as follows: The berries to be harvested (usually large, plump, dark green or purplish-black fruits) are piled up at room temperature to ferment, causing the pulp to soften. Then, the softened pulp is separated from the seeds by manual rubbing and washing, and repeatedly rinsed with running water to remove the peel, pulp residue, and other impurities, ultimately obtaining pure seeds.
[0004] Although experience shows that meticulous manual washing causes less damage to the seeds themselves, this traditional method has many significant limitations in the context of industrialization: 1. Low production efficiency: The entire process relies on manual labor, which is time-consuming and has limited processing capacity.
[0005] 2. High production costs: It is time-consuming and complicated, and the fermented berries are sticky and dirty, resulting in high labor costs.
[0006] 3. Poor quality stability: The cleaning effect depends entirely on the operator's experience and patience. In the pursuit of efficiency, problems such as incomplete cleaning and impurity residue are prone to occur, which can also lead to the loss of small seeds and result in yield loss. Summary of the Invention
[0007] To address the shortcomings of existing technologies, this invention proposes a device capable of automatically and continuously peeling and cleaning Polygonatum seeds.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a continuous peeling machine for Polygonatum seeds, characterized in that it includes a water tank, a grid horizontally arranged in the middle of the water tank, and several kneading mechanisms located above the grid within the water tank. The water tank has an inlet guide plate at its front end and an outlet guide plate at its rear end. The end of the inlet guide plate is connected to the front end of the grid, and the front end of the outlet guide plate is connected to the rear end of the grid. The kneading mechanisms include two fixed pulleys, two movable pulleys, and a kneading belt traction between the two fixed pulleys and the two movable pulleys. The fixed pulleys are rotatably connected to the side wall of the water tank, and the movable pulleys are rotatably connected to a mounting block. It also includes a transverse guide groove on the side wall of the water tank, a slider slidably connected in the guide groove, a guide rod slidably connected longitudinally on the slider, the lower end of the guide rod slidably fixed on an intermediate block, two guide rods slidably fixed on the intermediate block, the two guide rods slidably connected to the two sliders respectively, a preload spring slidably fitted on the guide rod slidably between the slider and the intermediate block, and a preload spring slidably fitted on the guide rod slidably between the mounting block and the intermediate block; it also includes a drive unit for driving the slider to reciprocate within the guide groove; when the slider is located on the side of the transverse guide groove near the end of the water tank, the distance between the movable pulley and the grid is minimized.
[0009] To achieve continuous rubbing, squeezing, and separation of the seed coat and kernel of Polygonatum sibiricum seeds, the rubbing belt located between the two movable pulleys is controlled to perform a rubbing action above the grid. Specifically, the rubbing belt pulled by the two fixed pulleys and the two movable pulleys forms a trapezoidal shape. When this trapezoid is isosceles, the distance between the rubbing belt between the two movable pulleys and the grid is minimal. Conversely, when the trapezoid transitions from isosceles to non-isosceles, the distance between the rubbing belt between the two movable pulleys and the grid is minimized. The spacing between them gradually increases, causing the kneading belt to intermittently press and knead the Polygonatum seeds located above the grid. The size and position of the transverse guide groove are designed so that when the kneading belt is an isosceles trapezoid, the slider is located at the extreme position on the side of the transverse guide groove closer to the end of the water tank. In other words, at this time, the distance between the movable pulley and the grid is the smallest. At this time, the reciprocating motion of the slider can not only knead and push the Polygonatum seeds, but also realize the orderly movement of the material on the grid, that is, drive the material to move from the beginning to the end of the water tank, realizing material flow.
[0010] Furthermore, the outer surface of the kneading belt has densely packed flexible brush strips.
[0011] The flexible brush strips can not only clean the grid, preventing the mesh from clogging and allowing the top and bottom of the grid to communicate, but also wash the Polygonatum seeds. Since the surface of Polygonatum seeds is net-like after peeling, it is not easy to clean. Existing technology generally uses continuous rinsing with water, while this solution uses a brush. Under the combined action of rubbing, rolling, pushing and brushing, the adhering substances on the surface of the Polygonatum seeds that have been piled up and decomposed can be efficiently cleaned.
[0012] As an alternative, the outer side of the kneading belt has several brush heads arranged alternately, with the brush heads densely covered with flexible bristles.
[0013] Similar to flexible brush strips, this method is more conducive to forming multiple storage areas separated by brush heads between the grid and the kneading belt. The adjacent areas have a certain effect of restricting the exchange of materials. In this way, the Polygonatum seeds are squeezed and kneaded under a restricted state, resulting in higher strength.
[0014] Furthermore, the drive unit is a pneumatic cylinder or a hydraulic cylinder.
[0015] Furthermore, the kneading mechanism also includes a motor for driving one of the fixed pulleys to rotate.
[0016] The motor controls the kneading belt to keep it in a driving state. Compared to the kneading belt being stationary, the circulation of the kneading belt facilitates its self-cleaning. On the other hand, the driving of the kneading belt can apply relative movement between the material and the grid, making the kneading more efficient. The seeds move faster on the grid, which is conducive to improving the overall efficiency. Since there are multiple kneading units, the adhering substances on the surface of the Polygonatum seeds are cleaned after multiple treatments.
[0017] Furthermore, the first end of the feed guide plate is connected to a feed chute, and the end of the discharge guide plate is connected to a discharge chute.
[0018] The seeds of Polygonatum to be cleaned are fed into the feed trough. During the circulation of the kneading belt, the material to be cleaned can be driven into the grid, and the material can also be driven out of the grid at the discharge trough, so as to achieve automatic and continuous processing.
[0019] Furthermore, the liquid level in the water tank is above the grid. The seeds are soaked, and the rubbing belt is partially submerged, which is beneficial for removing adhering substances from the seed surface and separating adhering substances from the rubbing belt.
[0020] This design incorporates two pre-tension springs, Pre-tension Spring 1 and Pre-tension Spring 2, between the mounting block and the slider. Essentially, the slider and the intermediate block are slidably connected by Guide Rod 1, which is fitted with Pre-tension Spring 1, allowing the two movable pulleys to have longitudinal movement space as a whole. Guide Rod 2 is located between the intermediate block and the mounting block, slidably connected within the mounting block. Pre-tension Spring 2, fitted on the guide rod, flexibly restricts the distance between the two movable pulleys. As the slider moves, the belt tension changes, and Pre-tension Spring 1 and Pre-tension Spring 2 can adjust this tension change to maintain the kneading belt in a taut state. Pre-tension Spring 1 not only allows for longitudinal movement space of the movable pulleys but also buffers the kneading force. It should be noted that both Pre-tension Spring 1 and Pre-tension Spring 2 are compressed when the kneading belt is in an isosceles trapezoidal shape. As the slider moves and the kneading belt transitions from an isosceles trapezoid to a non-isosceles trapezoidal shape, the increased tension of the kneading belt further compresses Pre-tension Spring 1 and Pre-tension Spring 2.
[0021] A slider is slidably connected inside the guide groove. A guide rod is slidably connected longitudinally to the slider. The lower end of the guide rod is fixed to an intermediate block. Two guide rods are fixedly installed on the intermediate block, and the two guide rods are slidably connected to the two sliders respectively. A preload spring is provided between the slider and the intermediate block, and is sleeved on the guide rod. Attached Figure Description
[0022] Figure 1 This is a side view of the continuous peeling machine for Polygonatum seeds.
[0023] Figure 2 This is a schematic diagram of the internal structure of the continuous peeling machine for Polygonatum seeds.
[0024] Figure 3 This is a schematic diagram of the internal structure of the continuous peeling machine for Polygonatum seeds in another operating state.
[0025] Figure 4 for Figure 2 A magnified view of part A in the middle.
[0026] Legend: 1. Water tank; 2. Grid; 31. Feed guide plate; 32. Discharge guide plate; 33. Feed trough; 34. Discharge trough; 41. Fixed pulley; 42. Movable pulley; 43. Kneading belt; 51. Mounting block; 52. Transverse guide groove; 53. Slider; 54. Guide rod one; 55. Intermediate block; 56. Guide rod two; 57. Pre-tension spring one; 58. Pre-tension spring two; 6. Drive unit; 7. Brush head; 8. Motor. Detailed Implementation
[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the system includes a water tank 1, a grid 2 horizontally positioned in the middle of the water tank 1, and several kneading mechanisms located above the grid 2 within the water tank 1. The water tank 1 has an inlet guide plate 31 at its front end and an outlet guide plate 32 at its rear end. The end of the inlet guide plate 31 is connected to the front end of the grid 2, and the front end of the outlet guide plate 32 is connected to the rear end of the grid 2. The kneading mechanism includes two fixed pulleys 41, two movable pulleys 42, and a kneading belt 43 traction between the two fixed pulleys 41 and the two movable pulleys 42. The fixed pulleys 41 are rotatably connected to the side wall of the water tank 1, and the movable pulleys 42 are rotatably connected to a mounting block 51. The system also includes a transverse guide groove 52 formed on the side wall of the water tank 1, within which a sliding connection... A slider 53 is connected to a guide rod 54 that slides longitudinally on the slider 53. The lower end of the guide rod 54 is fixed to an intermediate block 55. Two guide rods 56 on the same straight line are fixedly installed on the intermediate block 55. The two guide rods 56 are slidably connected to the two sliders 53 respectively. A preload spring 57 is provided between the slider 53 and the intermediate block 55 and is sleeved on the guide rod 54. A preload spring 58 is provided between the mounting block 51 and the intermediate block 55 and is sleeved on the guide rod 56. The system also includes a drive unit 6 for driving the slider 53 to reciprocate within the guide groove. When the slider 53 is located on the side of the transverse guide groove 52 near the end of the water tank 1, the distance between the movable pulley 42 and the grid 2 is minimized.
[0029] To achieve continuous rubbing, squeezing, and separation of the seed coat and kernel of Polygonatum sibiricum seeds, the rubbing belt 43 located between the two movable pulleys 42 is controlled to perform a rubbing action above the grid 2. Specifically, the rubbing belt 43, which is pulled between the two fixed pulleys 41 and the two movable pulleys 42, is trapezoidal in shape. When this trapezoid is isosceles, the distance between the rubbing belt 43 located between the two movable pulleys 42 and the grid 2 is the smallest. Conversely, when the trapezoid changes from isosceles to non-isosceles, the distance between the rubbing belt 43 located between the two movable pulleys 42 and the grid 2 is smaller. The distance between grid 2 gradually increases, causing the kneading belt 43 to intermittently press and knead the Polygonatum seeds located above grid 2. The size and position of the transverse guide groove 52 are designed so that when the kneading belt 43 is an isosceles trapezoid, the slider 53 is located at the extreme position on the side of the transverse guide groove 52 closest to the end of the water tank 1. That is to say, at this time, the distance between the movable pulley 42 and grid 2 is the smallest. At this time, the reciprocating motion of the slider 53 can not only knead and push the Polygonatum seeds, but also realize the orderly movement of the material on grid 2, that is, drive the material to move from the beginning to the end of the water tank 1 to realize material flow.
[0030] The outer surface of the rubbing belt 43 has densely packed flexible brush strips. These flexible brush strips not only clean the grid 2, preventing clogging of the mesh and allowing the grid 2 to be interconnected, enabling debris to move downwards, but also wash the Polygonatum seeds. Since the surface of Polygonatum seeds is mesh-like after peeling, making them difficult to clean, existing technologies generally rely on continuous rinsing with water. This solution uses a brushing method; under the combined action of rubbing, rolling, pushing, and brushing, the adhering substances on the surface of the accumulated and decayed Polygonatum seeds can be efficiently cleaned.
[0031] As an alternative, the outer surface of the kneading belt 43 has several brush heads 7 arranged alternately, with flexible bristles densely distributed on the brush heads 7. Similar to flexible brush strips, this method is more conducive to forming multiple storage areas separated by brush heads 7 between the grid 2 and the kneading belt 43. The brush heads 7 restrict material flow between adjacent areas, thus the Polygonatum seeds are essentially squeezed and kneaded under restricted conditions, resulting in higher strength.
[0032] The drive unit 6 is a pneumatic cylinder or a hydraulic cylinder.
[0033] The kneading mechanism also includes a motor 8 for driving one of the fixed pulleys 41 to rotate. The motor 8 controls the kneading belt 43 to be in a transmission state. Compared with the kneading belt 43 being stationary, the circulation of the kneading belt 43 is conducive to its self-cleaning. On the other hand, the transmission of the kneading belt 43 can apply relative movement between the material and the grid 2, making the kneading more efficient. The seeds move faster on the grid 2, which is conducive to improving the overall efficiency. Since there are multiple kneading units, the adhering substances on the surface of the Polygonatum seeds are cleaned after multiple treatments.
[0034] The first end of the feed guide plate 31 is connected to a feed trough 33, and the end of the discharge guide plate 32 is connected to a discharge trough 34. The Polygonatum seeds to be cleaned are fed into the feed trough 33. During the circulation of the kneading belt 43, the material to be cleaned can be driven into the grid 2, or the material can be driven out of the grid 2 at the discharge trough 34, so as to realize automatic continuous processing.
[0035] The liquid level in the water tank 1 is above the grid 2. The seeds are soaked, and the rubbing belt 43 is partially submerged in water, which is beneficial for removing the adhering substances from the seed surface and separating the adhering substances from the rubbing belt 43.
[0036] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.
Claims
1. A continuous peeling machine for Polygonatum seeds, characterized in that, The system includes a water tank (1), a grid (2) horizontally positioned in the middle of the water tank (1), and several kneading mechanisms located above the grid (2) within the water tank (1). The water tank (1) has an inlet guide plate (31) at its head and an outlet guide plate (32) at its tail. The end of the inlet guide plate (31) is connected to the head of the grid (2), and the head of the outlet guide plate (32) is connected to the tail of the grid (2). The kneading mechanism includes two fixed pulleys (41), two movable pulleys (42), and a kneading belt (43) traction between the two fixed pulleys (41) and the two movable pulleys (42). The fixed pulleys (41) are rotatably connected to the side wall of the water tank (1), and the movable pulleys (42) are rotatably connected to a mounting block (51). The system also includes a transverse guide groove (52) opened on the side wall of the water tank (1), and the guide groove is slidably connected to the side wall. There is a slider (53), and a guide rod (54) is longitudinally slidably connected to the slider (53). The lower end of the guide rod (54) is fixed on an intermediate block (55). Two guide rods (56) are fixedly arranged on the intermediate block (55) and are on the same straight line. The two guide rods (56) are slidably connected to the two sliders (53). A pre-tightening spring (57) is provided between the slider (53) and the intermediate block (55) and is sleeved on the guide rod (54). A pre-tightening spring (58) is provided between the mounting block (51) and the intermediate block (55) and is sleeved on the guide rod (56). It also includes a drive unit (6) for driving the slider (53) to move back and forth in the guide groove. When the slider (53) is located on the side of the transverse guide groove (52) near the end of the water tank (1), the distance between the movable pulley (42) and the grid (2) is the smallest.
2. A continuous peeling machine for Polygonatum seeds according to claim 1, characterized in that, The outer surface of the kneading belt (43) has densely packed flexible brush strips.
3. A continuous peeling machine for Polygonatum seeds according to claim 1, characterized in that, The outer side of the kneading belt (43) has several brush heads (7) arranged alternately, and the brush heads (7) are densely covered with flexible bristles.
4. A continuous peeling machine for Polygonatum seeds according to claim 1, 2, or 3, characterized in that, The drive unit (6) is a pneumatic cylinder or a hydraulic cylinder.
5. A continuous peeling machine for Polygonatum seeds according to claim 1, 2, or 3, characterized in that, The kneading mechanism also includes a motor (8) for driving one of the fixed pulleys (41) to rotate.
6. A continuous peeling machine for Polygonatum seeds according to claim 1, 2, or 3, characterized in that, The first end of the feed guide plate (31) is connected to a feed trough (33), and the end of the discharge guide plate (32) is connected to a discharge trough (34).
7. A continuous peeling machine for Polygonatum seeds according to claim 1, 2, or 3, characterized in that, The liquid level in the tank (1) is above the grid (2).