Gravity seed sorter table

Abstract

A gravity type seed sorting machine workbench belongs to agricultural seed processing machinery; the rack and the pull rod are movably installed on the inner wall surface of the front end of the rectangular frame, the hinged shaft connects the rack and the pull rod, the pin shaft of the fixedly installed hand wheel and gear is inserted into the rectangular frame, the connecting rod is hingedly installed on the pull rod, the support plate is transversely fixed on the inner side of the rectangular frame, the air guide plate shaft is rotatably supported and installed on the part between the support plate and the rectangular frame, the air guide plate shaft is fixedly connected with the connecting rod, the air guide plate is fixed on the air guide plate shaft, the pointer is fixed on the end of the air guide plate shaft located outside the rectangular frame, the air hole size of the front section punching air plate is larger than that of the rear section punching air plate, the interval size of the adjacent reinforcing horizontal bars A is larger than that of the adjacent reinforcing horizontal bars B; the workbench structure is unique and reasonable, reliable in use, high in sorting operation quality and efficiency, small in fan power load, energy-saving and environment-friendly, and low in operation cost.

Description

TECHNICAL FIELD

[0001] The present invention belongs to the field of agricultural seed processing machinery, and mainly relates to a sorting workbench for a gravity type seed sorting machine. BACKGROUND

[0002] The gravity type seed sorting machine is one of the necessary processing equipment in seed sorting processing. During operation, the machine removes impurities (including heavy impurities and light impurities) from seeds according to the difference in relative density (also known as specific gravity) of the seeds and the impurities. However, due to the deficiencies in the structure design of the workbench currently equipped on the gravity type seed sorting machine, there are problems such as uneven distribution of air volume on the workbench, high power consumption of the fan, and the inability to adjust the angle of the air flow towards the workbench according to the operation needs during seed sorting operation. The sorting operation quality needs to be improved, and the operation cost needs to be reduced. SUMMARY

[0003] The purpose of the present invention is to solve the problems existing in the prior art, and to develop and design a new structure of the workbench for the gravity type seed sorting machine according to the actual needs of the seed gravity sorting operation, so as to reduce the load of the fan, improve the uniformity of the air volume distribution on the workbench, ensure the sorting quality and effect, and save the operation cost.

[0004] The purpose of this invention is achieved as follows: A front-section perforated air plate and a rear-section perforated air plate are sequentially installed on the upper ends of the front and rear sections of a rectangular frame, connected to each other. A woven air mesh is installed over the upper part of the front and rear perforated air plates. Reinforcing horizontal bars A and B are respectively arranged laterally on the bottom of the front and rear perforated air plates. A blocking strip A is arranged obliquely on the upper end of the front perforated air plate, and a blocking strip B is arranged laterally on the upper end of the rear perforated air plate. A main sliding plate is fixed to the rear end of the woven air mesh. Two guide plates are installed on the main sliding plate with a gap. A long side plate, an end side plate, and a diagonal side plate are sequentially installed on the upper end of the rectangular frame, connected to each other. An insert plate, a dividing plate, a discharge flow adjustment block, and a secondary sliding plate are sequentially installed from front to back on the rectangular frame, located behind the diagonal side plate. The secondary sliding plate is located below the discharge flow adjustment block and can move laterally back and forth on the inner wall of the front end of the rectangular frame. A rack and tie rod are installed sequentially. A hinged shaft is inserted into the round hole on the rack and the vertical elongated hole on the tie rod, connecting the rack and tie rod. A pin is rotatably inserted into the front end of the rectangular frame. A gear and a handwheel are fixed to the inner and outer ends of the pin, respectively. The gear meshes with the rack. N connecting rods are hinged to the tie rod in a swingable manner. A support plate is horizontally fixed to the inner side of the rectangular frame, below the junction of the front and rear perforated air plates, and connected to the connecting rods. N equal number of air guide plate shafts are rotatably supported and installed between the support plate and the rectangular frame. The air guide plate shafts are fixedly connected to the connecting rods, and the air guide plates are fixedly mounted on the air guide plate shafts. A pointer is fixedly mounted on the end of the air guide plate shaft, located on the outer side of the rectangular frame. The air hole size of the front perforated air plate is larger than that of the rear perforated air plate. The spacing between adjacent reinforcing crossbars A is larger than that between adjacent reinforcing crossbars B. This constitutes a gravity seed sorting machine worktable.

[0005] This invention creates a structure by adding N adjustable-angle air guide plates at the front section of a rectangular frame, below the front perforated air plate. This structure can better distribute the airflow onto the workbench, improving the quality and efficiency of sorting operations. By employing the variation of the air hole size of the front perforated air plate being larger than that of the rear perforated air plate, and the spacing between adjacent reinforcing crossbars A being larger than that between adjacent reinforcing crossbars B, ventilation resistance is reduced, fan power load consumption is decreased, operating costs are low, energy saving and environmental protection are achieved, and the structure is novel, unique, reasonable, and reliable in use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the worktable of a gravity seed sorting machine.

[0007] Figure 2 yes Figure 1 Top view;

[0008] Figure 3 yes Figure 2 The C-direction view;

[0009] Figure 4 yes Figure 1 Sectional view along axis AA;

[0010] Figure 5 yes Figure 4 Enlarged view of part B.

[0011] Part number description in the image:

[0012] 1. Rectangular frame; 2. Connecting rod; 3. Tie rod; 4. End plate; 5. Blocking strip A; 6. Long plate; 7. Woven air mesh; 8. Guide plate; 9. Rear perforated air plate; 10. Reinforcing crossbar B; 11. Reinforcing crossbar A; 12. Front perforated air plate; 13. Air guide plate shaft; 14. Blocking strip B; 15. Main sliding plate; 16. Secondary sliding plate; 17. Discharge flow adjustment block; 18. Material distribution plate; 19. Insert plate; 20. Slanted plate; 21. Handwheel; 22. Pin shaft; 23. Rack; 24. Air guide plate; 25. Pointer; 26. Gear; 27. Hinge shaft; 28. Support plate. Detailed Implementation

[0013] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A gravity-type seed sorting machine worktable comprises a front perforated air plate 12 and a rear perforated air plate 9 sequentially mounted on the upper ends of the front and rear sections of a rectangular frame 1. A woven air mesh 7 is installed overlying the upper parts of the front and rear perforated air plates 12 and 9. Reinforcing crossbars A11 and B10 are horizontally arranged on the bottom of the front and rear perforated air plates 12 and 9, respectively. A blocking strip A5 is obliquely arranged on the upper end of the front perforated air plate 12, and a blocking strip A5 is horizontally arranged on the upper end of the rear perforated air plate 9. Strip B14, a main sliding plate 15 is fixed to the rear end of the woven wind net 7. Two guide plates 8 are installed on the main sliding plate 15 with a gap. A long surrounding plate 6, an end surrounding plate 4, and a diagonal surrounding plate 20 are installed sequentially on the upper end of the rectangular frame 1. On the rectangular frame 1, located behind the diagonal surrounding plate 20, from front to back, an insert plate 19, a material distribution plate 18, a discharge flow adjustment block 17, and a secondary sliding plate 16 are installed sequentially. The secondary sliding plate 16 is located below the discharge flow adjustment block 17. On the inner wall of the front end of the rectangular frame 1, it is possible to... A rack 23 and a tie rod 3 are sequentially installed in a horizontally reciprocating manner. A hinge shaft 27 is inserted into a round hole on the rack 23 and a vertical elongated hole on the tie rod 3, hingedly connecting the rack 23 and the tie rod 3. A pin 22 is rotatably inserted into the front end of the rectangular frame 1. A gear 26 and a handwheel 21 are respectively fixed to the inner and outer ends of the pin 22. The gear 26 meshes with the rack 23. N connecting rods 2 are pivotally hinged to the tie rod 3. On the inner side of the rectangular frame 1, at the junction of the front perforated air plate 12 and the rear perforated air plate 9. A horizontally fixed support plate 28 is located below, and N air guide shafts 13, equal in number to the connecting rod 2, are rotatably supported and installed between the support plate 28 and the rectangular frame 1. The air guide shafts 13 are fixedly connected to the connecting rod 2, and air guides 24 are fixedly mounted on the air guide shafts 13. A pointer 25 is fixedly mounted on the end of the air guide shaft 13, located on the outer side of the rectangular frame 1. The air hole size of the front perforated air plate 12 is larger than the air hole size of the rear perforated air plate 9. The spacing between adjacent reinforcing crossbars A11 is larger than the spacing between adjacent reinforcing crossbars B10. The rectangular frame 1 is made of aluminum alloy. The reinforcing crossbars A11 and B10 are both made of plastic or nylon.

[0014] During operation, the workbench is tilted as a whole, and the auxiliary sliding plate 16 is located at a high position on the tilt. The external power drives the worktable to make a horizontal reciprocating motion. The seeds to be sorted are fed into the woven air mesh 7 from the front section of the rectangular frame 1. Under the control of the blocking bars A5 and B14, the seeds move continuously to the rear section of the rectangular frame 1. At the same time, the external air force, guided by the air guide plate 24, blows from bottom to top onto the front section perforated air plate 12 and woven air mesh 7, blowing up the thicker seeds and impurities located above the woven air mesh 7, so that the relatively denser seeds and heavy impurities are located in the lower layer, and the light impurities are located in the upper layer. The heavy impurities flow to and concentrate at the insertion plate 19. The seeds and light impurities move to the rear section perforated air plate 9 and woven air mesh 7. The external air force further separates the thinner seeds and impurities into layers. The light impurities are discharged from the impurity outlet of the guide plate 8 at the lower side. The seeds containing impurities are discharged from the return outlet between the two guide plates 8. The qualified seeds are recovered from the finished seed outlet outside the guide plate 8 at the higher side through the main sliding plate 15. When the seed discharge rate is high, open the discharge flow rate adjustment block 17, and some qualified seeds will fall onto the auxiliary sliding plate 16 for recycling. Open the insert plate 19 to discharge and separate heavy impurities such as sand and gravel.

[0015] When adjusting the wind direction as needed for the operation, turn the handwheel 21 by hand. This moves the pull rod 3 laterally via the pin 22, gear 26, rack 23, and hinge shaft 27. The connecting rod 2, hinged to the pull rod 3, drives the guide vane shaft 13 to rotate, adjusting the tilt angle of the guide vane 24 and thus changing the airflow through the perforated wind vane 12 and woven wind net 7 to meet the needs of different crops and operating conditions. The pointer 25 accurately determines the tilt angle of the guide vane 24 in real time with high precision.

Claims

1. A gravity seed sorting machine worktable, wherein a front perforated air plate (12) and a rear perforated air plate (9) are sequentially mounted on the upper ends of the front and rear sections of a rectangular frame (1), and a woven air mesh (7) is installed over the upper parts of the front perforated air plate (12) and the rear perforated air plate (9). Reinforcing crossbars A (11) and B (10) are horizontally arranged on the bottom of the front perforated air plate (12) and the rear perforated air plate (9), respectively. A blocking strip A (5) is obliquely arranged on the upper end of the front perforated air plate (12), and a blocking strip A (5) is horizontally arranged on the upper end of the rear perforated air plate (9). A baffle bar B (14) is fixed to the rear end of the woven wind net (7) with a main sliding plate (15). Two guide plates (8) are installed on the main sliding plate (15) with a gap. A long side plate (6), an end side plate (4), and a sloping side plate (20) are installed sequentially on the upper end of the rectangular frame (1). An insert plate (19), a dividing plate (18), a discharge flow adjustment block (17), and a secondary sliding plate (16) are installed sequentially from front to back on the rectangular frame (1) at the rear side of the sloping side plate (20). The secondary sliding plate (16) is located below the discharge flow adjustment block (17). The feature is that: A rack (23) and a pull rod (3) are sequentially installed on the inner wall of the front end of the rectangular frame (1) in a manner that allows for horizontal reciprocating motion. A hinge shaft (27) is inserted into the round hole on the rack (23) and the vertical elongated hole on the pull rod (3) to hinge the rack (23) and the pull rod (3). A pin shaft (22) is rotatably inserted into the front end of the rectangular frame (1). A gear (26) and a handwheel (21) are fixed to the inner and outer ends of the pin shaft (22), respectively. The gear (26) meshes with the rack (23). N connecting rods (2) are hinged to the pull rod (3) in a manner that allows for swinging motion. On the inner side of the rectangular frame (1), located at the front perforated air plate (12) and the rear... A horizontal support plate (28) is fixedly mounted below the joint of the perforated air plate (9). N air guide shafts (13), equal in number to the connecting rod (2), are rotatably supported and mounted between the support plate (28) and the rectangular frame (1). The air guide shafts (13) are fixedly connected to the connecting rod (2). The air guide plate (24) is fixedly mounted on the air guide shaft (13). A pointer (25) is fixedly mounted on the end of the air guide shaft (13) at the outer part of the rectangular frame (1). The air hole size of the front perforated air plate (12) is larger than the air hole size of the rear perforated air plate (9). The spacing between adjacent reinforcing crossbars A (11) is larger than the spacing between adjacent reinforcing crossbars B (10).

2. The worktable of a gravity-type seed sorting machine according to claim 1, characterized in that: The rectangular frame (1) is made of aluminum alloy.

3. The worktable of a gravity-type seed sorting machine according to claim 1, characterized in that: Both the reinforcing crossbar A (11) and the reinforcing crossbar B (10) are made of plastic or nylon material.

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