A multi-end supply anti-blocking feeding device for corn seed screening machine
Dust removal and sand removal are achieved in the hopper box of the corn seed screening machine through airflow circulation and airflow pressure difference, solving the space occupation and damage problems of mechanical agitation and preventing blockage, improving screening efficiency and equipment life, and ensuring the absence of corn seeds Dust feeding and high-quality screening.
Patent Information
- Application Number
- CN202210034617.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-13
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2042-01-13
AI Technical Summary
The anti-blocking feeding equipment of existing corn seed screening machines has problems such as large space occupied by mechanical agitation, easy to stagnate and blockage, damage to the seed skin, large friction electrostatic dust removal loss and poor dust removal effect.
The negative and positive pressure are generated in the hopper box by airflow circulation and airflow pressure difference. The dust removal and sand removal are achieved through multiple deflectors, shunt plates and jet channels to avoid seed damage, and the airflow is controlled through high-speed fans and solenoid valves. Split feed.
It achieves dust-free feeding and anti-blocking effects, improves screening efficiency and pass rate, extends equipment life, and effectively removes sand, improving the working stability of the screening machine.
Smart Images
Figure CN114505229B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of anti-blocking of seed screening machines, and in particular to multi-end anti-blocking feeding equipment for corn seed screening machines. Background Art
[0002] Corn seeds are commonly grown in the northwest region of the country. Corn seed screening machines are capable of screening out qualified corn seeds for use. Corn seed screening machines need to be used in conjunction with a feed hopper. In order to improve screening efficiency, the feed hopper needs to have an anti-blocking function. Existing anti-blocking feeding equipment, such as an anti-blocking structure for the feed hopper of a smart agricultural seed screening machine with application number CN202010992315.4, achieves anti-blocking effects by stirring the seeds in the through opening and achieves dust removal effects by generating static electricity through friction. Its stirring and anti-blocking needs to occupy space in the through opening, which can easily cause the stirring mechanism to get stuck and cause blockage, and stirring the corn seeds can easily damage the epidermis of the corn seeds, resulting in a decrease in the screening pass rate. In addition, the dust removal structure is relatively complicated, and static electricity generated by friction will increase the loss between the friction mechanisms, reduce the life of the equipment, and have a poor dust removal effect. The heavier sand contained in the corn seeds cannot be effectively removed, and the sand will enter the screening machine and affect the operation of the screening machine. Summary of the invention
[0003] The purpose of the present invention is to solve the problems in the prior art that mechanical stirring to prevent blockage occupies a large space and easily causes jamming and blockage, easily damages the seed epidermis, and has large friction electrostatic dust removal losses and poor dust and sand removal effects. A multi-end supply anti-blocking feeding device for a corn seed screening machine is proposed.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions:
[0005] A multi-end supply anti-blocking feeding device for a corn seed screening machine comprises a bracket, a hopper box is installed on the bracket, a plurality of guide plates are equidistantly installed in the hopper box, an inclined collecting plate is commonly installed on the upper ends of the plurality of guide plates, the inclined collecting plate is fixed on the inner wall of the hopper box, a partition is installed on the inner top wall of the hopper box, the lower end of the partition is vertically fixedly installed on the upper surface of one end of the plurality of guide plates away from the inclined collecting plate, and a partition is equidistantly installed on the inner bottom wall of the hopper box on the side of the partition away from the guide plate There are multiple diverter plates, and the multiple diverter plates correspond one-to-one to the multiple guide plates. A high-speed fan is installed on the outer wall of the hopper box, and an intake pipe and an exhaust pipe are respectively installed on the high-speed fan. Multiple inlet pipes and multiple outlet pipes are equidistantly inserted on the side walls of the hopper box, each of the inlet pipes is located between two adjacent guide plates, and each of the outlet pipes is located between two diverter plates. A solenoid valve is installed on each of the inlet pipes, and one end of each inlet pipe away from the hopper box is inserted on the exhaust pipe.
[0006] Furthermore, a diversion channel is formed between two adjacent diversion plates, and a plurality of sand removal holes are provided on the bottom wall of each of the diversion channels. A sand collecting box is provided on the bottom wall cover of the hopper box, and the upper end cover of the sand collecting box is provided on the plurality of sand removal holes. The end of the exhaust pipe away from the high-speed fan is inserted into the side wall of the sand collecting box.
[0007] Furthermore, a jet channel is formed between two adjacent guide plates, and an end of the jet channel close to the partition forms a material drop opening with the partition and the inclined collecting plate. The material drop opening is connected to the jet channel, and the multiple jet channels are respectively connected to multiple diversion channels.
[0008] Furthermore, a dust collecting box is installed on the upper surface of the hopper box, a dust collecting pipe is installed on the dust collecting box, a first filter net is embedded on the upper surface of the hopper box, the first filter net is located on the side of the partition away from the inclined collecting plate, a dust removal cover is provided on the hopper box, the dust removal cover is arranged on the first filter net, one end of the dust collecting pipe away from the dust collecting box is inserted into the dust removal cover, and one end of the suction pipe away from the high-speed fan is inserted into the dust collecting box.
[0009] Furthermore, two feed inlets are symmetrically provided on the top wall of the hopper box. The feed inlets are located on a side of the partition close to the inclined collecting plate, and a second filter net is embedded on the upper end of the partition.
[0010] Furthermore, the air intake flow rate of the air intake pipe of the high-speed fan is greater than the exhaust flow rate of the exhaust pipe, and the flow rate of the air intake pipe is greater than the flow rate of the exhaust pipe.
[0011] The advantages are: negative pressure is generated in the hopper box and positive pressure is generated at the sand removal hole by air circulation and air pressure difference, so as to realize the functions of dust removal and sand removal and achieve the effect of dust-free feeding. Corn seeds are transported one by one by air flow diversion feeding, which not only achieves the effect of anti-blocking, but also avoids the damage of corn seeds, and can realize the simultaneous feeding of multiple corn seed screening machines, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a structural schematic diagram of a multi-end supply anti-blocking feeding device for a corn seed screening machine proposed by the present invention;
[0013] Figure 2 A schematic diagram showing a partially cutaway hopper box of a multi-end anti-blocking feeding device of a corn seed screening machine proposed by the present invention;
[0014] Figure 3 A schematic diagram showing a cutaway portion of a partition plate of a multi-end anti-blocking feeding device of a corn seed screening machine proposed by the present invention;
[0015] Figure 4 for Figure 3Enlarged view of point A in the middle.
[0016] In the figure: 1 bracket, 2 hopper box, 21 feed port, 22 air inlet pipe, 23 solenoid valve, 24 discharge pipe, 25 first filter net, 26 sand removal hole, 3 high-speed fan, 31 suction pipe, 32 exhaust pipe, 4 dust collecting box, 41 dust collecting pipe, 42 dust removal cover, 5 sand collecting box, 6 partition, 61 second filter net, 7 guide plate, 71 jet channel, 72 inclined collecting plate, 73 drop port, 8 diverter plate, 81 diverter channel. DETAILED DESCRIPTION
[0017] Reference Figure 1-4 A multi-end supply anti-blocking feeding device for a corn seed screening machine comprises a bracket 1, a hopper box 2 is mounted on the bracket 1, a plurality of guide plates 7 are equidistantly mounted in the hopper box 2, an inclined collecting plate 72 is commonly mounted on the upper ends of the plurality of guide plates 7, the inclined collecting plate 72 is fixed on the inner wall of the hopper box 2, a partition 6 is mounted on the inner top wall of the hopper box 2, the lower end of the partition 6 is vertically fixedly mounted on the upper surface of one end of the plurality of guide plates 7 away from the inclined collecting plate 72, a plurality of partitions are equidistantly mounted on the inner bottom wall of the hopper box 2 on the side of the partition 6 away from the guide plate 7 Flow plate 8, multiple diverter plates 8 correspond one-to-one to multiple guide plates 7, a high-speed fan 3 is installed on the outer wall of the hopper box 2, and an air intake pipe 31 and an exhaust pipe 32 are respectively installed on the high-speed fan 3, and multiple air inlet pipes 22 and multiple discharge pipes 24 are equidistantly inserted on the side wall of the hopper box 2, each air inlet pipe 22 is located between two adjacent guide plates 7, and each discharge pipe 24 is located between two diverter plates 8, and a solenoid valve 23 is installed on each air inlet pipe 22, and one end of each air inlet pipe 22 away from the hopper box 2 is inserted on the exhaust pipe 32.
[0018] When corn seeds enter between multiple guide plates 7 along the inclined collecting plate 72 in the hopper box 2, the high-speed fan 3 sprays high-speed airflow into each air inlet pipe 22 through the exhaust pipe 32, so that the high-speed airflow pushes the corn seeds through the partition 6 into between the two diverter plates 8, and then is discharged through the discharge pipe 24, so that the corn seeds can be diverted in the hopper box 2 to reduce the probability of blockage, and can be divided into multiple beams of corn seed airflow, and multiple seed screening machines can be loaded through the discharge pipe 24, which has a wider range of applications. The corn seeds are transported by airflow diversion, which can prevent the corn seeds from being damaged and achieve a higher screening pass rate.
[0019] A diversion channel 81 is formed between two adjacent diversion plates 8, and a plurality of sand removal holes 26 are provided on the bottom wall of each diversion channel 81. A sand collecting box 5 is provided on the bottom wall cover of the hopper box 2, and the upper end cover of the sand collecting box 5 is provided on the plurality of sand removal holes 26. One end of the exhaust pipe 32 away from the high-speed fan 3 is inserted into the side wall of the sand collecting box 5.
[0020] The diameter of the sand removal hole 26 is smaller than the diameter of the corn seeds. When the corn is transported by the airflow to the diversion channel 81 between the two diversion plates 8, the air discharged from the exhaust pipe 32 enters the sand collecting box 5, which reduces the airflow velocity. The airflow enters the hopper box 2 from the sand collecting box 5 through the sand removal holes 26, which can make the corn seeds receive the upward weak airflow in the diversion channel 81, so that the corn seeds are dispersed and the friction between the corn seeds and the bottom of the hopper box 2 is reduced, so that the corn seeds can smoothly enter the discharge pipe 24 for discharge. The sand mixed in the corn seeds is heavier and can fall into the sand collecting box 5 through the sand removal holes 26, thereby preventing the sand from entering the screening machine.
[0021] An air jet channel 71 is formed between two adjacent guide plates 7 . An end of the air jet channel 71 close to the partition plate 6 forms a material drop opening 73 with the partition plate 6 and the inclined collecting plate 72 . The material drop opening 73 is connected to the air jet channel 71 . The multiple air jet channels 71 are respectively connected to the multiple diversion channels 81 .
[0022] The air inlet pipe 22 discharges part of the airflow in the exhaust pipe 32 into the jet channel 71, so that a high-speed airflow is formed in the jet channel 71, and the corn seeds slide down the inclined collecting plate 72 and enter the jet channel 71 through the drop port 73, so that the high-speed airflow quickly blows the corn seeds entering the jet channel 71 into the diversion channel 81, thereby realizing quantitative diversion of the corn seeds. The high-speed airflow in the jet channel 71 generates a negative pressure at the drop port 73, and the corn seeds are continuously sucked down into the jet channel 71 by the negative pressure to feed, thereby avoiding clogging of the corn seeds and stopping of feeding.
[0023] A dust collecting box 4 is installed on the upper surface of the hopper box 2, and a dust collecting pipe 41 is installed on the dust collecting box 4. A first filter net 25 is embedded in the upper surface of the hopper box 2, and the first filter net 25 is located on the side of the partition 6 away from the inclined collecting plate 72. A dust removal cover 42 is provided on the hopper box 2, and the dust removal cover 42 is covered on the first filter net 25. One end of the dust collecting pipe 41 away from the dust collecting box 4 is inserted on the dust removal cover 42, and one end of the suction pipe 31 away from the high-speed fan 3 is inserted on the dust collecting box 4. Two feed ports 21 are symmetrically opened on the top wall of the hopper box 2. The feed port 21 is located on the side of the partition 6 close to the inclined collecting plate 72, and a second filter net 61 is embedded in the upper end of the partition 6.
[0024] The filter hole diameters of the first filter mesh 25 and the second filter mesh 61 are smaller than the diameter of the sand removal hole 26. The high-speed fan 3 generates negative pressure suction in the dust box 4 through the suction pipe 31. The dust box 4 generates negative pressure suction in the dust removal cover 42 through the dust collecting pipe 41. The first filter mesh 25 generates negative pressure in the hopper box 2. The dust contained in the corn seed flow entering the diversion channel 81 can be sucked out, and the dust contained in a large amount of corn seeds entering the hopper box 2 through the feed port 21 can be sucked out through the second filter mesh 61, and dust can be prevented from being raised at the feed port 21. The sucked out dust is stored in the dust box 4.
[0025] The air intake flow rate of the air intake pipe 31 of the high-speed fan 3 is greater than the exhaust flow rate of the exhaust pipe 32 , and the flow rate of the air intake pipe 22 is greater than the flow rate of the exhaust pipe 32 .
[0026] The suction flow rate of the suction pipe 31 is greater than the exhaust flow rate of the exhaust pipe 32, so that the hopper box 2 is always in a negative pressure state, which can prevent the dust mixed in the corn seeds from being blown up when adding materials from the feed port 21, that is, protecting the production workshop environment and preventing operators from inhaling dust. The high flow rate of the intake pipe 22 can blow the corn seeds into the diversion channel 81 and into the discharge pipe 24. The low flow rate of the exhaust pipe 32 can generate a low-flow airflow at the sand removal hole 26, which can not only make the lighter dust be blown upward, but also prevent the heavier sand from being blown from the sand removal hole 26 into the sand collecting box 5, thereby realizing the separation and collection of sand and dust, and avoiding sand clogging or damaging the dust collecting box 4.
[0027] The high-speed fan 3 is turned on, so that the high-speed fan 3 generates negative pressure in the dust box 4 through the suction pipe 31, and then generates negative pressure in the dust cover 42 through the dust collecting pipe 41. The dust cover 42 generates negative pressure in the area on the side of the partition 6 away from the inclined collecting plate 72 in the hopper box 2 through the first filter material net 25, and then generates negative pressure in the area on the side of the partition 6 close to the inclined collecting plate 72 in the hopper box 2 through the second filter material net 61, so that the dust contained in the corn seeds fed from the feed inlet 21 cannot be lifted up, and part of the dust is sucked into the dust cover 42 through the second filter material net 61 and the first filter material net 25, and then enters the dust box 4 through the dust collecting pipe 41;
[0028] The high-speed fan 3 discharges a relatively slow airflow in the sand collecting box 5 through the exhaust pipe 32, so that a positive pressure is generated in the sand collecting box 5 and a weak airflow is blown into the diversion channel 81 through the sand removal hole 26. The exhaust pipe 32 sprays a high-speed airflow into the jet channel 71 through the air inlet pipe 22, and the corn seeds entering the hopper box 2 slide down the inclined collecting plate 72 to the drop port 73 and fall into the jet channel 71. The high-speed airflow blows the corn seeds and dust sand entering the jet channel 71 into the In the diversion channel 81, the weak airflow from the sand removal hole 26 causes the dust to flow upward and enter the dust removal cover 42 from the first filter net 25 to be sucked away, while the heavier sand cannot be blown by the weak airflow, so the sand enters the sand collecting box 5 from the sand removal hole 26. The corn seeds entering the diversion channel 81 are dusted and sanded and then enter the discharge pipe 24 with the airflow. The discharge pipe 24 is connected to each seed screening machine through an external pipe, so that the clean corn seeds can be transported to each screening machine for screening.
Claims
1. A multi-end feeding and anti-blocking feeding device for a corn seed screening machine, comprising a bracket (1), characterized in that: A hopper box (2) is mounted on the support (1), a plurality of guide plates (7) are equidistantly mounted in the hopper box (2), an inclined material collecting plate (72) is commonly mounted on the upper ends of the plurality of guide plates (7), the inclined material collecting plate (72) is fixed on the inner wall of the hopper box (2), a partition plate (6) is mounted on the inner top wall of the hopper box (2), the lower end of the partition plate (6) is vertically fixedly mounted on the upper surface of one end of the plurality of guide plates (7) away from the inclined material collecting plate (72), and the inner bottom wall of the hopper box (2) is provided with a partition plate (6). A plurality of flow dividers (8) are equidistantly installed on a side of the partition (6) away from the guide plate (7), and the plurality of flow dividers (8) correspond one-to-one to the plurality of guide plates (7). A high-speed fan (3) is installed on the outer wall of the hopper box (2), and an air intake pipe (31) and an air discharge pipe (32) are respectively installed on the high-speed fan (3). A plurality of air inlet pipes (22) and a plurality of discharge pipes (24) are respectively equidistantly inserted on the side wall of the hopper box (2), and each of the air inlet pipes (22) is located between two adjacent guide plates. (7), each of the discharge pipes (24) is located between two diverter plates (8), each of the air inlet pipes (22) is installed with a solenoid valve (23), one end of each of the air inlet pipes (22) away from the hopper box (2) is inserted into the exhaust pipe (32), a diverter channel (81) is formed between two adjacent diverter plates (8), a plurality of sand removal holes (26) are opened on the bottom wall of each of the diverter channels (81), a sand collecting box (5) is provided on the bottom wall cover of the hopper box (2), and the sand collecting box ( 5) is provided on a plurality of sand removal holes (26); an end of the exhaust pipe (32) away from the high-speed fan (3) is inserted into the side wall of the sand collecting box (5); an air jet channel (71) is formed between two adjacent guide plates (7); an end of the air jet channel (71) close to the partition plate (6) forms a material drop opening (73) with the partition plate (6) and the inclined collecting plate (72); the material drop opening (73) is connected to the air jet channel (71); and a plurality of the air jet channels (71) are respectively connected to a plurality of diversion channels (81);A dust collecting box (4) is installed on the upper surface of the hopper box (2), and a dust collecting pipe (41) is installed on the dust collecting box (4). A first filter material net (25) is embedded on the upper surface of the hopper box (2), and the first filter material net (25) is located on the side of the partition (6) away from the inclined collecting plate (72). A dust removal cover (42) is provided on the upper cover of the hopper box (2), and the dust removal cover (42) is covered on the first filter material net (25). One end of the dust collecting pipe (41) away from the dust collecting box (4) is inserted into the dust removal cover (42), and one end of the suction pipe (31) away from the high-speed fan (3) is inserted into the dust collecting box (4). The top wall of the hopper box (2) is symmetrically provided with two feed inlets (21), and the feed inlets (2 1) is located on a side of the partition (6) close to the inclined material collecting plate (72), a second filter material net (61) is embedded in the upper end of the partition (6), the suction flow rate of the suction pipe (31) of the high-speed fan (3) is greater than the exhaust flow rate of the exhaust pipe (32), the flow rate of the intake pipe (22) is greater than the flow rate of the exhaust pipe (32), the high-speed fan (3) is turned on, so that the high-speed fan (3) generates negative pressure in the dust collecting box (4) through the suction pipe (31), and then generates negative pressure in the dust collecting cover (42) through the dust collecting pipe (41), and the dust collecting cover (42) generates negative pressure in the hopper box (2) located on the side of the partition (6) away from the inclined material collecting plate (72) through the first filter material net (25), and then generates negative pressure in the dust collecting cover (42) through the second filter material net (61). Negative pressure is generated in a region of the hopper box (2) located on one side of the partition (6) close to the inclined collecting plate (72), so that dust contained in the corn seeds fed from the feed port (21) cannot be lifted up, and part of the dust is sucked into the dust removal cover (42) through the second filter material net (61) and the first filter material net (25), and then enters the dust collection box (4) through the dust collection pipe (41); the high-speed fan (3) discharges a relatively slow airflow in the sand collection box (5) through the exhaust pipe (32), so that positive pressure is generated in the sand collection box (5) and a weak airflow is blown into the diversion channel (81) through the sand removal hole (26); the exhaust pipe (32) sprays a high-speed airflow into the jet channel (71) through the air intake pipe (22), and the corn seeds entering the hopper box (2) are blown away. The corn seeds slide down the inclined collecting plate (72) to the drop opening (73) and fall into the jet channel (71), and the high-speed airflow blows the corn seeds and dust sand entering the jet channel (71) into the diversion channel (81). The weak airflow of the sand removal hole (26) causes the dust to flow upward and enter the dust removal cover (42) from the first filter material net (25) to be sucked out, while the heavier sand cannot be blown by the weak airflow, and the sand enters the sand collection box (5) from the sand removal hole (26). The corn seeds entering the diversion channel (81) are dedused and desanded, and then enter the discharge pipe (24) with the airflow. The discharge pipe (24) is connected to each seed screening machine through an external pipe, so that the clean corn seeds can be transported to each screening machine for screening. ;