A millet efficient screening and impurity removal machine

Abstract

The present invention relates to the technical field of millet processing, and specifically to an all-in-one machine for efficient screening and impurity removal of millet, comprising a reciprocating drive device, a screening movable frame being provided on the reciprocating drive device, and further comprising: a guide transverse groove frame, wherein the guide transverse groove frame is fixedly mounted on the screening movable frame, and a guide vertical groove frame is also vertically mounted on the guide transverse groove frame, wherein a screening state adjustment frame is arranged between the guide transverse groove frame and the guide vertical groove frame; a wind selection control bin and a screening device are arranged on the screening state adjustment frame; and a state adjustment component, wherein the state adjustment component is respectively connected to the guide transverse groove frame and the screening state adjustment frame. The all-in-one machine for efficient screening and impurity removal of millet of the present invention can not only realize screening and impurity removal operations in different states according to millet in different states, which is beneficial to improving work efficiency and screening effect, but also improves screening effect by performing multi-stage screening actions such as screening and wind selection on millet.

Description

Technical Field

[0001] The invention relates to the technical field of millet processing, and in particular to an all-in-one machine for efficiently screening and removing impurities from millet. Background Art

[0002] Millet processing often introduces a variety of impurities, including large particles of sand and dirt, small grains of broken rice and gravel, and lightweight husks and dust. These impurities not only affect millet's safety and taste but also reduce the quality of the processed product. Therefore, millet processing requires methods such as screening and air separation to remove impurities.

[0003] Existing millet screening equipment has problems such as single function, low discharge efficiency, and insufficient adaptability to air separation during the impurity removal process. The fixed screen structure cannot simultaneously meet the needs of large particle interception and small particle fine screening, resulting in multi-stage impurity removal requiring step-by-step operation; horizontal screens are prone to material accumulation, and the inclined screen surface affects the air separation effect due to uneven material flow; traditional air separation devices have a weak effect on attached materials and cannot automatically adjust the airflow intensity according to the discharge state (horizontal sliding or high-altitude scattering), resulting in incomplete removal of light impurities. In addition, the equipment lacks a dynamic switching mechanism and cannot flexibly adjust the working mode to adapt to different impurity removal needs, affecting operational efficiency and adaptability. Therefore, in response to the above situation, there is an urgent need to develop an all-in-one millet high-efficiency screening and impurity removal machine to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide an all-in-one machine for efficiently screening and removing impurities from millet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A millet efficient screening and impurity removal integrated machine, comprising a reciprocating drive device, the reciprocating drive device being provided with a screening movable frame, and further comprising:

[0007] A guide transverse trough frame, wherein the guide transverse trough frame is fixedly mounted on the screening movable frame, and a guide vertical trough frame is vertically mounted on the guide transverse trough frame, wherein a screening state adjustment frame is provided between the guide transverse trough frame and the guide vertical trough frame;

[0008] The screening state adjustment frame is provided with an air selection control bin and a screening device. After the millet is screened by the screening device, it will flow to the air selection control bin for air selection during the discharge process.

[0009] And a state adjustment component, which is respectively connected to the guide transverse groove frame and the screening state adjustment frame, and is used to drive the screening state adjustment frame to slide on the guide transverse groove frame and the guide vertical groove frame, so that the screening state adjustment frame gradually rotates from a horizontal state to a vertical state, thereby realizing the screening and discharge of millet in different states.

[0010] As a further solution of the present invention: further comprising: a roller, wherein the number of the rollers is multiple, and the multiple rollers are rotatably mounted on both sides of the screening movable frame;

[0011] A limiting sliding part, the limiting sliding part is respectively located on both sides of the screening movable frame and is arranged close to the roller, wherein the limiting sliding part and the roller are both connected to the reciprocating drive device;

[0012] and a discharging portion, which is located on the screening movable frame and is used for receiving the millet flowing out of the winnowing control bin.

[0013] As a further solution of the present invention: a limiting slider 1 is slidably installed in the guide transverse groove frame, and the limiting slider 1 is rotatably connected to the screening state adjustment frame through a rotating shaft 2;

[0014] A second limiting slider is slidably installed in the guide vertical slot frame, and the second limiting slider is rotationally connected to the screening state adjustment frame through a first rotating shaft.

[0015] As a further solution of the present invention: the state adjustment component includes:

[0016] A motor, wherein the motor is fixedly mounted on the guide cross groove frame, and a driving connecting rod is fixedly mounted on the output end of the motor;

[0017] a driving shaft, the driving shaft being rotatably connected to the other end of the driving connecting rod and being rotatably connected to the screening state adjustment frame, and the driving shaft being located between the first and second rotating shafts;

[0018] And positioning notch 1 and positioning notch 2, the positioning notch 1 and positioning notch 2 are respectively opened on the guide vertical groove frame and the guide horizontal groove frame, and are both detachably connected to the driving shaft.

[0019] As a further solution of the present invention: further comprising: a screening controller, the screening controller being fixedly mounted on the guide transverse trough frame, and the screening controller being electrically connected to the air selection control bin and the motor;

[0020] Wherein, the screening controller is also electrically connected to the pressure detectors provided in the positioning notch 1 and the positioning notch 2.

[0021] As a further solution of the present invention: a fan is provided in the air selection control chamber, and a plurality of air holes are provided on the top of the air selection control chamber;

[0022] Wherein, a heating wire mesh is provided between the air hole 1 and the fan for discharging hot air to the outside of the air separation control chamber;

[0023] A transition material guide portion is also provided on one side of the air selection control bin, and the transition material guide portion is arranged facing the screening equipment.

[0024] As a further solution of the present invention: a plurality of air holes 2 are opened on the other side of the air selection control bin, and an electromagnetic valve is provided between the air holes 2 and the fan.

[0025] As a further solution of the present invention: the screening device comprises:

[0026] A fine screen, the fine screen being fixedly mounted on the screening state adjustment frame and located on one side of the air selection control bin;

[0027] and a debris removal and expansion assembly, which is connected to the screening state adjustment frame and is located above the fine screen.

[0028] As a further solution of the present invention: the impurity removal and development component includes:

[0029] a retractable screening frame, one end of which is rotatably connected to the inner side wall of the screening state adjustment frame, and a coarse screen is fixedly mounted on the retractable screening frame;

[0030] A positioning tension piece, the two ends of which are respectively connected to the screening state adjustment frame and the retractable screening frame;

[0031] A magnetic plate, located on the other end of the stowage and expansion screening frame;

[0032] and an electromagnetic adsorption portion, wherein the electromagnetic adsorption portion is fixedly mounted on the inner bottom wall of the screening state adjustment frame;

[0033] When the retractable screening rack is retracted into the screening state adjustment frame, the electromagnetic adsorption portion generates a magnetic attraction force on the magnetic plate. When the retractable screening rack is unfolded from the screening state adjustment frame, the electromagnetic adsorption portion generates a magnetic repulsion force on the magnetic plate.

[0034] As a further solution of the present invention: the mesh openings of the coarse screen are larger than the mesh openings of the fine screen;

[0035] When the screening state adjustment frame is in a horizontal state, the retractable screening rack and the coarse screen are retracted in the screening state adjustment frame and are located above the fine screen, and the height of the coarse screen from the bottom wall of the screening state adjustment frame is greater than the height of the top of the air selection control bin from the bottom wall of the screening state adjustment frame.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. Multi-stage impurity removal integration: the coarse screen intercepts large particles of impurities, the fine screen filters small particles of impurities, and the air separation control chamber removes light impurities through the air hole one or air hole two graded wind speed, achieving three-stage impurity removal;

[0038] 2. Dynamic state adjustment: The screening state adjustment framework realizes three-state switching of horizontal → inclined → vertical through the state adjustment component: Horizontal state: double screens cooperate for fine screening; inclined state: the material automatically slides to the air separation bin, and low-speed hot air and auxiliary cold air are used to enhance the removal of attached impurities; vertical state: the coarse screen is unfolded, and the material is scattered at high altitude, and high-speed hot air is used to efficiently remove light impurities and break up lumps;

[0039] 3. Adaptive air separation system: The screening controller automatically switches the fan speed according to the frame status (positioning gap trigger signal): low speed is used for close-range air separation in an inclined state, and high speed is used for air separation in a vertical state; the built-in heating wire mesh in the air hole 1 provides a drying function, and the air hole 2 is controlled by a solenoid valve to assist with cold air to improve the impurity separation rate;

[0040] 4. Space optimization and automation: The debris removal and retraction components can automatically retract and unfold the coarse screen, reducing the space occupied by the equipment; the reciprocating drive unit drives the horizontal vibration of the entire equipment to improve the screen penetration rate;

[0041] 5. Energy saving and high efficiency: in vertical state, the second solenoid valve of the air hole is closed to avoid ineffective downward air supply; in inclined state, the low-speed fan reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the three-dimensional structure of the screening mobile frame in an embodiment of the present invention.

[0043] Figure 2 Schematic diagram of the three-dimensional structure of the screening state adjustment frame in an embodiment of the present invention.

[0044] Figure 3 Schematic diagram of the installation position structure of the fine screen in an embodiment of the present invention.

[0045] Figure 4 It is a schematic diagram of the three-dimensional structure of the tilted state of the screening state adjustment frame in an embodiment of the present invention.

[0046] Figure 5It is a schematic diagram of the three-dimensional structure of the guide transverse groove frame and the guide vertical groove frame in an embodiment of the present invention.

[0047] Figure 6 Schematic diagram of the three-dimensional structure of the reciprocating drive unit in an embodiment of the present invention.

[0048] Figure 7 It is a schematic diagram of the three-dimensional structure of the air separation control bin in an embodiment of the present invention.

[0049] Figure 8 Schematic diagram of the three-dimensional structure of the retractable screening rack in the expanded state according to an embodiment of the present invention.

[0050] Figure 9 Schematic diagram of the installation position structure of the coarse screen in an embodiment of the present invention.

[0051] In the figure: 1-screening moving frame, 2-limiting sliding part, 3-roller, 4-guide horizontal groove frame, 5-guide vertical groove frame, 6-screening state adjustment frame, 7-air selection control bin, 8-air hole 1, 9-screening controller, 10-driving connecting rod, 11-motor, 12-driving shaft, 13-retracting and unfolding screening frame, 14-coarse screen, 15-transition guide part, 16-reciprocating drive part, 17-fine screen, 18-discharging part, 19-positioning notch 1, 20-positioning notch 2, 21-limiting slider 1, 22-limiting slider 2, 23-rotating shaft 1, 24-rotating shaft 2, 25-air hole 2, 26-magnetic plate, 27-positioning tension member, 28-electromagnetic adsorption part. DETAILED DESCRIPTION

[0052] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0053] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0054] See also Figures 1-9 The embodiment of the present invention provides an all-in-one millet efficient screening and impurity removal machine, comprising a reciprocating drive device, the reciprocating drive device being provided with a screening movable frame 1, and further comprising:

[0055] A guide transverse trough frame 4, wherein the guide transverse trough frame 4 is fixedly mounted on the screening movable frame 1, and a guide vertical trough frame 5 is vertically mounted on the guide transverse trough frame 4, wherein a screening state adjustment frame 6 is provided between the guide transverse trough frame 4 and the guide vertical trough frame 5;

[0056] The screening state adjustment frame 6 is provided with a wind selection control bin 7 and a screening device. After the millet is screened by the screening device, it will flow to the wind selection control bin 7 for wind selection during the discharge process.

[0057] And a state adjustment component, which is respectively connected to the guide transverse groove frame 4 and the screening state adjustment frame 6, and is used to drive the screening state adjustment frame 6 to slide on the guide transverse groove frame 4 and the guide vertical groove frame 5, so that the screening state adjustment frame 6 gradually rotates from a horizontal state to a vertical state, thereby realizing the screening and discharge of millet in different states.

[0058] See also Figures 1-9 , further comprising: a roller 3, wherein the number of the roller 3 is multiple, and the multiple rollers 3 are rotatably mounted on both sides of the screening mobile frame 1;

[0059] The limiting sliding parts 2 are respectively located on both sides of the screening movable frame 1 and are arranged close to the roller 3, wherein the limiting sliding parts 2 and the roller 3 are both connected to the reciprocating drive device;

[0060] And a discharge portion 18 , which is located on the screening movable frame 1 and is used to receive the millet flowing out of the air selection control bin 7 .

[0061] When screening and removing impurities from millet, first, according to the processing needs of the millet, the state adjustment component can be started to drive the screening state adjustment frame 6 to slide between the guide horizontal groove frame 4 and the guide vertical groove frame 5, thereby changing the position state of the screening state adjustment frame 6. When the screening state adjustment frame 6 is in a horizontal state (this state is the state when the entire equipment is stored. If this state is selected for screening millet, the state adjustment component does not need to be started for adjustment), the large-particle impurities of the millet can be removed and the small-particle impurities can be screened. After the screening is completed, the screening state adjustment frame 6 can be tilted at a certain angle under the driving action of the state adjustment component until the screening is completed. The millet on the equipment flows to the air separation control bin 7 under the action of its own gravity, thereby air separation of the millet to further remove small particles and lighter impurities mixed in the millet. Finally, the millet that has been cleaned and screened flows to the discharge part 18, wherein the discharge part 18 can be provided with a millet collecting device (such as a conveyor belt) to complete the screening and cleaning of the millet, or it can be set as a screen structure to perform the next step of screening of the millet. The specific structure of the discharge part 18 can be set according to actual needs, and no specific limitation is made here. When only the millet needs to be cleaned, in order to ensure the working efficiency of the processing operation, the screening state adjustment frame 6 can be in a vertical state. At this time, the screening equipment Only large particles of impurities can be removed. Since the millet in this working state is at a higher position, the wind selection control bin 7 will also select the scattered millet (millet in the air) during the process of the millet falling down, so as to remove the small particles and lighter impurities mixed in the millet, thereby ensuring the effect of impurity removal. In addition, since the millet falls from a high place to the discharge part 18, the agglomerated millet can also be broken. I will not go into details here. When the millet is screened and impurity removed in the two working states, the external reciprocating drive device will drive the screening mobile frame 1 to reciprocate horizontally. Among them, the external reciprocating drive device can adopt a crank-connecting rod mechanism, and cooperate with the structure of the support seat, the roller 3 rolls on the support seat, the limiting sliding part 2 is engaged with the support seat to realize sliding limit, and the crank connecting rod mechanism is connected to the reciprocating driving part 16 provided on the screening mobile frame 1, thereby driving the screening mobile frame 1 to reciprocate on the support seat through the limiting sliding part 2 and the roller 3, so as to realize screening and impurity removal of the millet on the screening device. The above external reciprocating driving device adopts existing equipment and will not be described in detail here. It is simple to operate, not only can it realize screening and impurity removal operations in different states according to the millet in different states, which is conducive to improving work efficiency and screening effect, but also can improve the screening effect through multi-stage screening of the millet by screening and air separation, etc., which provides convenience for the staff.

[0062] In one embodiment of the present invention, see Figures 1-9A limit slider 21 is slidably installed in the guide transverse groove frame 4, and the limit slider 21 is rotatably connected to the screening state adjustment frame 6 through a second rotating shaft 24;

[0063] A second limiting slider 22 is slidably installed in the guide vertical slot frame 5 , and the second limiting slider 22 is rotatably connected to the screening state adjustment frame 6 through a first rotating shaft 23 .

[0064] The state adjustment component includes:

[0065] The motor 11 is fixedly mounted on the guide cross groove frame 4, and a driving connecting rod 10 is fixedly mounted on the output end of the motor 11;

[0066] A driving shaft 12, the driving shaft 12 being rotatably connected to the other end of the driving connecting rod 10 and rotatably connected to the screening state adjustment frame 6, and the driving shaft 12 being located between the first shaft 23 and the second shaft 24;

[0067] And a positioning notch 19 and a positioning notch 2 20 , wherein the positioning notch 19 and the positioning notch 2 20 are respectively opened on the guide vertical groove frame 5 and the guide horizontal groove frame 4 , and are both detachably connected to the driving shaft 12 .

[0068] It also includes: a screening controller 9, which is fixedly mounted on the guide cross trough frame 4, and the screening controller 9 is also electrically connected to the air selection control bin 7 and the motor 11;

[0069] The screening controller 9 is also electrically connected to the pressure detectors provided in the positioning notch 1 19 and the positioning notch 2 20 .

[0070] When the position state of the screening state adjustment frame 6 needs to be changed, the motor 11 is started (the state adjustment component can be set as two sets, which are located on both sides of the screening state adjustment frame 6 to provide sufficient power for the movement of the screening state adjustment frame 6 and ensure the smooth movement of the screening state adjustment frame 6). At this time, the motor 11 will drive the driving connecting rod 10 to rotate, and drive the driving shaft 12 to move synchronously. When the driving shaft 12 moves out of the positioning gap 20, the driving shaft 12 is separated from the pressure detector in the positioning gap 20. The pressure sensor will control the air separation control bin 7 to start at a low speed (200-400rpm) through the screening controller 9, so that after the screening state adjustment frame 6 reaches a certain position (when the inclination angle is 35°-45°), the millet in the screening equipment will flow downward under its own gravity. After the millet passes through the air separation control bin 7, air separation and impurity removal are carried out, and the millet is finally discharged; in addition, when the driving shaft 12 pushes the screening state adjusting frame 6 to move upward, under the limiting action of the limiting slider 1 21, one end of the screening state adjusting frame 6 cannot move upward synchronously. At this time, the other end of the screening state adjusting frame 6 will rotate around the rotating shaft 24 on the limiting slider 1 21 under the driving action of the driving connecting rod 10 and the driving shaft 12, and the limiting slider 2 22 will slide upward in the guide vertical slot frame 5. At this time, the rotating shaft 1 23 between the limiting slider 2 22 and the screening state adjusting frame 6 rotates, and under the driving action of the driving shaft 12 and the limiting action of the guide vertical slot frame 5 on the limiting slider 22, the screening state adjusting frame 6 will pull the limiting slider 1 21 to slide in the guide horizontal slot frame 4, and finally, the screening state adjusting frame 6 can be moved from the horizontal state to the inclined state (such as Figure 1 and Figure 4 As shown), with this driving mode, the screening state adjustment frame 6 will eventually reach a vertical state, and the driving shaft 12 will just enter the positioning notch 19 to ensure the stability of the reciprocating motion of the screening state adjustment frame 6 in the vertical state, and when the driving shaft 12 enters the positioning notch 19, it will contact the pressure detector in the positioning notch 19, so that the screening controller 9 controls the air separation control bin 7 to start at a high speed (800-1200rpm), which can increase the air volume and wind speed, thereby air-selecting the millet scattered from the screening equipment in the air, which is beneficial to improve the screening effect.

[0071] In one embodiment of the present invention, see Figures 1-9 , a fan is provided in the air selection control chamber 7, and a plurality of air holes 8 are provided on the top of the air selection control chamber 7;

[0072] Wherein, a heating wire mesh is provided between the air hole 1 8 and the fan, for discharging hot air to the outside of the air selection control chamber 7;

[0073] A transition material guide portion 15 is further provided on one side of the air selection control bin 7 , and the transition material guide portion 15 is arranged facing the screening device.

[0074] A plurality of second air holes 25 are provided on the other side of the air selection control chamber 7 , and a solenoid valve is provided between the second air holes 25 and the fan.

[0075] When the screening state adjustment frame 6 is in an inclined state for discharging, the screening controller 9 will control the fan in the air selection control bin 7 to start at a low speed. At this time, the hot air flow and flow rate discharged through the air hole 8 are low, and the solenoid valve arranged between the air hole 25 and the fan will be opened to allow the cold air to be discharged through the air hole 25; and the millet in the screening equipment will flow to the surface of the air selection control bin 7 through the transition guide part 15. At this time, the distance between the millet and the air selection control bin 7 is relatively close, and a smaller hot air flow and flow rate can achieve the drying and air selection of the millet. Since the air volume is relatively low at this time, In order to ensure that the millet is fully screened, when the millet is separated from the air selection control bin 7, it will also be scattered in a short section of the air. Then, under the air selection effect of the air hole 25, the millet can be fully screened. When the screening state adjustment frame 6 is in a vertical state, the screening controller 9 will control the air selection control bin 7 to start at a high speed and close the electromagnetic valve (because the downward blowing effect has no effect on the screening, the purpose of saving resources can be achieved). At this time, the air hole 1 8 discharges hot air with a higher air volume and wind speed to vertically blow the millet scattered from a high place (such as Figure 8 As shown in the figure, the purpose of sufficient screening is achieved, and the efficiency of impurity removal can be improved for the cleaner millet (with less fine impurities).

[0076] In one embodiment of the present invention, see Figures 1-9 , the screening device comprises:

[0077] A fine screen 17, which is fixedly mounted on the screening state adjustment frame 6 and located on one side of the air selection control bin 7;

[0078] And a debris removal and expansion assembly, which is connected to the screening state adjustment frame 6 and is located above the fine screen 17.

[0079] The impurity removal and development component includes:

[0080] a retractable screening frame 13, one end of which is rotatably connected to the inner side wall of the screening state adjustment frame 6, and a coarse screen 14 is fixedly mounted on the retractable screening frame 13;

[0081] A positioning tension member 27, the two ends of which are respectively connected to the screening state adjustment frame 6 and the retractable screening frame 13;

[0082] A magnetic plate 26, located on the other end of the retractable and unfoldable screening frame 13;

[0083] and an electromagnetic adsorption portion 28, wherein the electromagnetic adsorption portion 28 is fixedly mounted on the inner bottom wall of the screening state adjustment frame 6;

[0084] When the retractable screening rack 13 is retracted into the screening state adjustment frame 6 , the electromagnetic adsorption portion 28 generates a magnetic attraction force on the magnetic plate 26 . When the retractable screening rack 13 is unfolded from the screening state adjustment frame 6 , the electromagnetic adsorption portion 28 generates a magnetic repulsion force on the magnetic plate 26 .

[0085] The mesh size of the coarse screen 14 is larger than the mesh size of the fine screen 17;

[0086] When the screening state adjustment frame 6 is in a horizontal state, the retractable screening rack 13 and the coarse screen 14 are retracted in the screening state adjustment frame 6 and are located above the fine screen 17, and the height of the coarse screen 14 from the bottom wall of the screening state adjustment frame 6 is greater than the height of the top of the air selection control bin 7 from the bottom wall of the screening state adjustment frame 6.

[0087] When the screening state adjustment frame 6 is in a horizontal state (such as Figure 1As shown), millet is added to the coarse screen 14 (on the back of the coarse screen 14), and under the shaking action of the screening movable frame 1, the millet will fall onto the fine screen 17, while large particles of impurities will remain in the coarse screen 14 (there may also be no large particles of impurities), wherein the upper and lower sides of the coarse screen 14 are provided with enclosures to prevent large particles of impurities from falling back into the millet again, and when the millet is screened again on the fine screen 17, the screening state adjustment frame 6 can be tilted at a certain angle, so that the millet on the fine screen 17 flows to the air separation control bin 7 for air separation, and when the screening state adjustment frame 6 is in a vertical state, the pressure detector in the positioning notch 19 can also control the direction of the current passed into the electromagnetic adsorption part 28 through the screening controller 9 to change, so that the magnetic attraction force of the electromagnetic adsorption part 28 on the magnetic plate 26 can be converted into a magnetic repulsion force. The action of the positioning tension piece 27 pushes one end of the folding and unfolding screening frame 13 to rotate around the other end, and under the pulling action of the positioning tension piece 27, the coarse screen 14 and the fine screen 17 are finally formed into a vertical state, wherein the positioning tension piece 27 can be in the form of a soft rope, or a structure hinged by two thin steel plates. As long as it is possible to start the pulling action on the folding and unfolding screening frame 13 when the coarse screen 14 is rotated to an approximately horizontal state, no specific limitation is made here. At this time, the millet can be directly added to the coarse screen 14 to quickly remove impurities from the millet (only one screening is required to improve work efficiency). In the process of the millet falling downward through the coarse screen 14, the millet scattered into the air is screened by air through the air hole 8, which is beneficial to remove small particles of impurities or dust mixed in the millet, as well as impurities such as lightweight husks, which will not be elaborated here.

[0088] It should be noted that, in the present invention, unless otherwise expressly specified or limited, the terms "sliding," "rotating," "fixed," and "provided with," etc., should be understood in a broad sense. For example, they may refer to welded connections, bolted connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0089] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A millet efficient screening and impurity removal integrated machine, comprising a reciprocating drive device, wherein the reciprocating drive device is provided with a screening movable frame, characterized in that: Also includes: A guide transverse trough frame, wherein the guide transverse trough frame is fixedly mounted on the screening movable frame, and a guide vertical trough frame is vertically mounted on the guide transverse trough frame, wherein a screening state adjustment frame is provided between the guide transverse trough frame and the guide vertical trough frame; The screening state adjustment frame is provided with an air selection control bin and a screening device. After the millet is screened by the screening device, it will flow to the air selection control bin for air selection during the discharge process. and a state adjustment component, which is respectively connected to the guide transverse groove frame and the screening state adjustment frame, and is used to drive the screening state adjustment frame to slide on the guide transverse groove frame and the guide vertical groove frame, so that the screening state adjustment frame gradually rotates from a horizontal state to a vertical state, thereby realizing the screening and discharge of millet in different states; The screening device comprises: a fine screen, which is fixedly mounted on the screening state adjustment frame and located on one side of the winnowing control bin; and a debris removal and expansion assembly connected to the screening state adjustment frame and located above the fine screen; The impurity removal and expansion assembly comprises: an expansion and expansion screening frame, one end of which is rotatably connected to the inner side wall of the screening state adjustment frame, and a coarse screen is fixedly installed on the expansion and expansion screening frame; A positioning tension piece, the two ends of which are respectively connected to the screening state adjustment frame and the retractable screening frame; A magnetic plate, located on the other end of the stowage and expansion screening frame; and an electromagnetic adsorption portion, wherein the electromagnetic adsorption portion is fixedly mounted on the inner bottom wall of the screening state adjustment frame; When the retractable screening rack is retracted into the screening state adjustment frame, the electromagnetic adsorption portion generates a magnetic attraction force on the magnetic attraction plate; when the retractable screening rack is unfolded from the screening state adjustment frame, the electromagnetic adsorption portion generates a magnetic repulsion force on the magnetic attraction plate; The mesh size of the coarse screen is larger than the mesh size of the fine screen; When the screening state adjustment frame is in a horizontal state, the retractable screening rack and the coarse screen are retracted in the screening state adjustment frame and are located above the fine screen, and the height of the coarse screen from the bottom wall of the screening state adjustment frame is greater than the height of the top of the air selection control bin from the bottom wall of the screening state adjustment frame.

2. The millet efficient screening and impurity removal machine according to claim 1, characterized in that: Also includes: Rollers, the number of the rollers is multiple, and the multiple rollers are rotatably mounted on both sides of the screening movable frame; A limiting sliding part, the limiting sliding part is respectively located on both sides of the screening movable frame and is arranged close to the roller, wherein the limiting sliding part and the roller are both connected to the reciprocating drive device; and a discharging portion, which is located on the screening movable frame and is used for receiving the millet flowing out of the winnowing control bin.

3. The millet efficient screening and impurity removal integrated machine according to claim 1 or 2, characterized in that: A limiting slider 1 is slidably installed in the guide transverse groove frame, and the limiting slider 1 is rotatably connected to the screening state adjustment frame through a rotating shaft 2; A second limiting slider is slidably installed in the guide vertical slot frame, and the second limiting slider is rotationally connected to the screening state adjustment frame through a first rotating shaft.

4. The millet efficient screening and impurity removal integrated machine according to claim 3, characterized in that: The state adjustment component includes: A motor, wherein the motor is fixedly mounted on the guide cross groove frame, and a driving connecting rod is fixedly mounted on the output end of the motor; a driving shaft, the driving shaft being rotatably connected to the other end of the driving connecting rod and being rotatably connected to the screening state adjustment frame, and the driving shaft being located between the first and second rotating shafts; And positioning notch 1 and positioning notch 2, the positioning notch 1 and positioning notch 2 are respectively opened on the guide vertical groove frame and the guide horizontal groove frame, and are both detachably connected to the driving shaft.

5. The millet efficient screening and impurity removal integrated machine according to claim 4, characterized in that: Also includes: A screening controller, which is fixedly mounted on the guide transverse trough frame and is also electrically connected to the air selection control bin and the motor; Wherein, the screening controller is also electrically connected to the pressure detectors provided in the positioning notch 1 and the positioning notch 2.

6. The millet efficient screening and impurity removal machine according to claim 1, characterized in that: A fan is provided in the air selection control chamber, and a plurality of air holes are provided on the top of the air selection control chamber; Wherein, a heating wire mesh is provided between the air hole 1 and the fan for discharging hot air to the outside of the air separation control chamber; A transition material guide portion is also provided on one side of the air selection control bin, and the transition material guide portion is arranged facing the screening equipment.

7. The millet efficient screening and impurity removal machine according to claim 6, characterized in that: A plurality of air holes 2 are provided on the other side of the air selection control bin, and an electromagnetic valve is provided between the air holes 2 and the fan.

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