Precise metering two-way feeding device, feeding machine and feeding method

Abstract

The invention discloses an accurate-metering two-way feeding device, a feeding machine and a feeding method, and belongs to the field of material feeding. The positioning platform is positioned at the top of the cavity and is communicated with the cavity; the blanking groove I and the blanking groove II are positioned on two sides of the bottom of the cavity and are communicated with the cavity; a front cover and a rear cover are installed on the two sides, in the axial lead direction of the material distribution area, of the cavity in a matched mode respectively, rotating shafts are installed on the front cover and the rear cover, the rotating shafts are driven by power to rotate forwards or reversely, a material distribution rotating disc is installed on the rotating shafts, and the material distribution rotating disc is matched with the inner wall of the material distribution area and rotates in the material distribution area. And the material distributing turntable comprises more than one metering trough. Accurate metering can be achieved according to the volume of the metering trough, bidirectional feeding can be achieved through the feeding method, and therefore one set of feeding machine can achieve alternate and accurate feeding to two target feeding areas.

Description

Technical Field

[0001] The present invention belongs to the field of material transportation, and specifically relates to a precise metering bidirectional feeding device, a feeding machine and a feeding method. Background Art

[0002] Accurate material delivery often relies on precise weighing functions to complete material separation and then delivery; the applicant has discovered through research that it is possible to achieve precise material delivery by setting the spatial volume to convert it into weight instead of a simple weighing solution. Under the premise of ensuring accurate measurement, it is often more suitable for conveying powdered or granular materials.

[0003] In order to ensure the transportation of the above materials, fans and pipelines are often required. For example, each target feeding area is equipped with a set of feeding equipment. In scenarios where there are several or even dozens of feeding areas, the procurement, use and maintenance costs of the feeding demanders will be greatly increased.

[0004] For example, the CN201312518Y automatic bait-feeding machine, in its specification, paragraph

[003] mentions that "the spreading device has the following structural forms...pipes and high-speed air flow are used to transport the bait to the feeding point" in order to achieve two discharge ports on one set of feeding equipment; this solution actually still uses two sets of main pipes and two sets of spreading devices, which has problems such as insufficient economy.

[0005] Another example is the CN200983790Y bidirectional vibration type fish pond feeding machine. Its specification sheet

[005] mentions that "when in use, the feed enters the receiving hopper from the feed box and is bidirectionally distributed through the bidirectional distribution box; when the vibration motor rotates, the eccentric shaft sleeve and the connecting rod drive the feeding vibration box to move up and down to generate vibration to transport the feed forward, through the distribution plate cover to the distribution plate; the feed enters the distribution plate, and the distribution motor rotates the distribution plate, and the feed is thrown out under the action of centrifugal force." The principle of this application is mainly to achieve bidirectional distribution through the distribution box, and is suitable for the distribution plate to rotate and use centrifugal force to throw the feed, but there are problems such as insufficient economy.

[0006] Another example is CN119631954A, a feeding machine for aquaculture. Its specification, paragraph

[002] , states that "Existing feeding machines all set the feeding amount based on the feeding time. This timed feeding control method cannot accurately control the feeding amount. Chinese Patent 201510047161.0... In other words, four weighing modules are required to form a metering unit. The entire feeding machine is the metered unit, but what really needs to be measured is the feed in the feeding machine... Four additional weighing modules are required, which is too costly."

[0007] The specification states in paragraph

[005] that "a distributing wheel is provided below the discharge port of the feed container, and the distributing wheel rotates to distribute the feed in the container... or the distributed feed falls into a feed receiver with a rotating blade, enters a feed pipe, and is blown by compressed air to a distant breeding pond."

[0008] The specification, in paragraph

[006] , mentions "...a multiplexer, the multiplexer being provided with a feed inlet and a plurality of discharge outlets, the feed inlet being communicated with a rotatable elbow feed inlet, the discharge outlet of the elbow being communicated with a plurality of discharge outlets, each of the plurality of discharge outlets being provided with feed branch pipes leading to feeding points in each aquaculture pond... enabling precise feeding of feed to each aquaculture pond in turn."

[0009] The specification sheet states in paragraph

[014] that "the three components of the present invention, namely the distributing mechanism, the connecting seat, the loading container and the feed, form a metered unit... The other components of the feeding machine are not within the metered range, so the metering is accurate." The specification sheet states in paragraph

[019] that "the distributing mechanism is a conveyor belt arranged in the connecting seat 2, which delivers the feed in the container 1 to the feed receiver 15 with the rotating blade 16; the rotating blade 16 brings the feed to the lower side of the feed receiver 15 and enters the feed pipe 29, where it is blown by compressed air to a distant breeding pond; when the distributing mechanism stops working, the feed in the container 1 does not decrease. The distributing mechanism does not contact the feed receiver 15, and the metering accuracy is high." The specification sheet states in paragraph

[027] that "... it can effectively prevent the feed from being backblown by compressed air due to the increase in the gap between the rotating blade 16 and the feed receiver housing..."

[0010] In summary, the principle of CN119631954A is to redesign the metering unit through the material distribution mechanism to ensure metering accuracy, and use the material receiver and rotating plate to prevent the feed from being blown back. This solution is complex in structure, has many bends, and is still based on weight measurement.

[0011] The applicant sets the goal of this application as achieving accurate measurement while reducing the total cost of the equipment, as well as the cost of use and maintenance. After research, it was found that the existing material delivery equipment also has some other defects:

[0012] (1) When using wind power to transport materials through pipelines, too many valves or elbows will lead to large wind resistance (such as CN119631954A), especially right-angle elbows. Large wind resistance will lead to insufficient wind power for blowing materials (such as feed, fertilizer, rice, sewage treatment powder, etc.) over long distances, and the material cannot be transported to the nozzle position or the material speed is obviously too low when it is transported to the nozzle position. The above may cause uneven and untimely material delivery or even material jamming in the pipeline.

[0013] (2) Existing equipment often does not measure accurately enough, and the weight of each feed varies greatly. If used in aquaculture, it will not be possible to accurately feed the fish and shrimp and control the feed intake as needed, which can easily lead to overfeeding or underfeeding.

[0014] (3) If one set of delivery equipment is configured for every two target feeding areas (such as CN201312518Y, CN200983790Y), it is difficult to solve the above problems.

[0015] The applicant has considered changing the feeding direction of the one-way feeding through a three-way valve under the premise of accurate measurement, so that a set of feeding equipment can feed two target feeding areas. However, this will also increase the total cost and the number of failure points. The fan needs to run continuously during the feeding period, thereby reducing the service life of the fan. There is also the problem of too many valves or elbows causing large wind resistance as mentioned in (1) above. Summary of the Invention

[0016] The technical problem to be solved by the present invention is to provide a precise metering bidirectional feeding device, a feeding machine and a feeding method to solve one or more problems mentioned in the background technology or achieve better technical effects.

[0017] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention discloses a precise metering two-way feeding device: comprising a hollow cavity;

[0018] a positioning platform located at the top of the cavity and in communication with the cavity;

[0019] A first feeding trough and a second feeding trough are located on both sides of the bottom of the cavity and communicated with the cavity.

[0020] Furthermore, the center of the hollow part of the cavity is a material distribution area.

[0021] The top of the material distribution area is provided with an opening 1, the positioning platform is located above the opening 1, the hollow portion of the positioning platform is an aggregate buffer area, and the material distribution area is connected to the aggregate buffer area;

[0022] Opening 2 and opening 3 are provided on both sides of the bottom of the material distribution area. The material drop trough 1 and material drop trough 2 are provided on both sides of the material distribution area and are connected to the material distribution area through opening 2 and opening 3 respectively.

[0023] Furthermore, the cross section of the material distribution area perpendicular to its axis is circular; and the first and second material distribution troughs are both hollow.

[0024] Furthermore, the material distribution area, the first material distribution trough and the second material distribution trough are all cylindrical and hollow; the second opening and the third opening are symmetrically arranged on both sides of the material distribution area.

[0025] Furthermore, the cavity is provided with a front cover and a rear cover on both sides of the axial centerline of the material distribution area, and the front cover and the rear cover are provided with a rotating shaft, which is driven by power to rotate forward or reverse.

[0026] A material distribution turntable is installed on the rotating shaft, and the material distribution turntable is adapted to the inner wall of the material distribution area and rotates around the axis of the material distribution area in the material distribution area;

[0027] The material distribution turntable includes more than one metering trough;

[0028] Furthermore, the rotating shaft and the material distribution turntable are installed in conjunction with each other to form a whole, or the rotating shaft and the material distribution turntable are integrated;

[0029] The power is input by a motor.

[0030] In some embodiments, the material distribution turntable includes three, four, five, six, seven, or eight metering troughs uniformly distributed circumferentially.

[0031] Furthermore, the material distribution turntable includes circumferentially distributed spacer plates, and the metering troughs are located between adjacent spacer plates; the outermost edge of the cross section of the spacer plate is arc-shaped and fits with the inner wall of the material distribution area;

[0032] The arc length of the matching section between the inner wall of the adjacent partition plate and the inner wall of the material distribution area is L1, and the shortest arc length of the inner wall of the material distribution area from opening 1 to opening 2 or opening 3 is L3.

[0033] Satisfies: L1<L3.

[0034] Furthermore, the arc length of the matching section between the outer wall of the adjacent partition plate and the inner wall of the material distribution area is L2.

[0035] The arc length of the first opening is L4, the arc length of the second opening is L5, and the arc length of the third opening is L6;

[0036] Satisfies: L5≈L1, L6≈L1, L1<L4<L2.

[0037] Furthermore, a front cover channel 1 and a front cover channel 2 are respectively provided on both sides of the bottom of the front cover, and one end of the front cover channel 1 is adapted to be connected to the blanking trough 1; one end of the front cover channel 2 is adapted to be connected to the blanking trough 2;

[0038] A rear cover channel 1 and a rear cover channel 2 are respectively provided on both sides of the bottom of the rear cover. One end of the rear cover channel 1 is adapted to connect to the blanking trough 1; one end of the rear cover channel 2 is adapted to connect to the blanking trough 2.

[0039] The present invention also discloses a feeding machine, comprising a precise metering bidirectional feeding device, a silo, an air source, a pipeline and a target area.

[0040] The bottom of the silo is adaptively connected to the top of the positioning platform; the material in the silo falls to the aggregate buffer area due to gravity and then continues to fall into and fill the metering trough;

[0041] The wind source includes wind source 1 and wind source 2; wind source 1 and wind source 2 are two independent wind sources or originate from the same wind source;

[0042] The pipelines include pipeline 1, pipeline 2, pipeline 3, and pipeline 4;

[0043] The target area includes target area 1 and target area 2;

[0044] The other end of the front cover channel 1 is adapted to connect the communication pipe 1 to the wind source 1, and the other end of the front cover channel 2 is adapted to connect the communication pipe 4 to the target area 2;

[0045] The other end of the rear cover channel 1 is connected to the pipeline 2 to the target area 1; the other end of the rear cover channel 2 is connected to the pipeline 3 to the wind source 2.

[0046] The present invention also discloses a feeding method, comprising the feeding machine,

[0047] When the rotating shaft drives the material distribution turntable to rotate forward, the metering trough carrying the material rotates forward along the inner wall of the material distribution area until it is connected with the first material distribution trough, and then the material in the metering trough falls into the first material distribution trough due to gravity and inertia. The air source 1 supplies air to the first material distribution trough through the first pipe, and blows the material falling into the first material distribution trough through the second pipe to the target area 1;

[0048] When the rotating shaft drives the material distribution turntable to reverse, the metering trough carrying the material reverses along the inner wall of the material distribution area to connect with the second material distribution trough, and then the material in the metering trough falls into the second material distribution trough due to gravity and inertia. The air source 2 supplies air to the second material distribution trough through the pipe 3 and blows the material falling into the second material distribution trough through the pipe 4 to the target area 2.

[0049] Preferably,

[0050] During the time period t1, the rotating shaft drives the material distribution turntable to rotate forward with an adjustable speed;

[0051] During the time period t2, the rotating shaft drives the material distribution turntable to reverse and the speed is adjustable;

[0052] The system also includes a control system, wherein the power of the rotating shaft is controlled by the control system to set the rotation direction and speed; the air supply of the air source is also controlled by the control system.

[0053] During the time period t1, the air source supplies air continuously or intermittently;

[0054] During the time period t2, the second air source supplies air continuously or intermittently;

[0055] When wind source 1 and wind source 2 originate from the same wind source, the control system controls a valve to separate the same wind source into wind source 1 and wind source 2; when wind source 1 and wind source 2 are two independent wind sources, the control system controls wind source 1 and wind source 2 respectively.

[0056] Preferably,

[0057] The time periods t1 and t2 are set according to the switching conditions and periods of the control system, wherein the switching conditions are:

[0058] When only one of target area 1 or target area 2 needs to be fed, cycle t1 or t2 is maintained;

[0059] When it is necessary to feed materials into both target area 1 and target area 2, the cycles t1 and t2 are switched periodically.

[0060] Preferably,

[0061] The control system controls the rotation of the power-driven rotating shaft within the time period t1 or t2 to be continuous rotation or jog rotation at time intervals.

[0062] Compared with the prior art, the present invention can achieve the following technical effects:

[0063] 1. Accurate metering and accurate feeding: When the metering trough is located at the top, the material in the silo falls to the aggregate buffer area due to gravity and then continues to fall into and fills the metering trough; when the rotating shaft drives the material distribution turntable to rotate forward, the metering trough carries the material and rotates forward along the inner wall of the material distribution area to connect with the blanking trough one, and then the material in the metering trough falls into the blanking trough one due to gravity and inertia, and the air source one supplies air to the blanking trough one through the pipe one, and blows the material falling into the blanking trough one through the pipe two to the target area one; when the rotating shaft drives the material distribution turntable to reverse, the metering trough carries the material and reverses along the inner wall of the material distribution area to connect with the blanking trough two, and then the material in the metering trough falls into the blanking trough two due to gravity and inertia, and the air source two supplies air to the blanking trough two through the pipe three, and blows the material falling into the blanking trough two through the pipe four to the target area two.

[0064] The above scheme can realize accurate metering according to the volume of the metering trough, and can realize bidirectional feeding according to the feeding method, so that a set of feeding machines can realize alternating and accurate feeding to two target feeding areas.

[0065] 2. Two-way feeding: According to the above method, the first and second feeding troughs can realize one-way feeding or two-way alternating feeding, so that a set of feeding machines can realize alternating and accurate feeding to two target feeding areas.

[0066] 3. Reduce valves or elbows to reduce wind resistance: Air source 1 in this application delivers air to the chute via pipe 1, blowing the material that falls into chute 1 through pipe 2 to target area 1. Air source 2 delivers air to chute 2 via pipe 3, blowing the material that falls into chute 2 through pipe 4 to target area 2. As a result, the air source, pipes, and target area can be aligned to the maximum extent possible, eliminating valves or elbows during the feeding process, reducing wind resistance and increasing the delivery distance.

[0067] 4. In this application, L1<L3 can ensure that the metering trough is in a closed state in the area where L3 is located, that is, the material in the metering trough in the L3 area is always filled and will not overflow from openings one / two / three, ensuring sealing, metering accuracy and feeding accuracy.

[0068] 5. The preferred L1<L4<L2 in this application can help the metering trough to receive materials at one opening on the top and fill the metering trough smoothly. To ensure this effect, L1<L4<L2 is not the only limitation. The preferred L5 / L6≈L1 in this application can help blow materials without residue when the material distribution turntable is running. To ensure this effect, L5 / L6≈L1 is not the only limitation.

[0069] 6. The control system controls the speed of the motor or other power to achieve the speed adjustment of the rotating shaft to drive the material distribution turntable to rotate forward or reverse. The speed of the material distribution turntable is more stable and controllable, which can ensure that the metering trough will not be connected with the first or second feeding trough in advance, thereby further ensuring accurate feeding.

[0070] 7. Fan Protection: When air source 1 and air source 2 are selected as two independent fans, a set of feeders alternately feeds materials accurately to two target feeding areas. When feeding reaches one of the target feeding areas, the corresponding fan starts operating, while the other fan can be paused. This solution avoids the problem of a single fan running continuously, which significantly reduces its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0072] Figure 1 It is a three-dimensional schematic diagram of the cavity and the material distribution turntable;

[0073] Figure 2 It is a three-dimensional schematic diagram of the cavity;

[0074] Figure 3 It is a schematic diagram of the side of the cavity;

[0075] Figure 4This is a three-dimensional diagram of the cavity with the front cover and the back cover Figure 1 ;

[0076] Figure 5 This is a three-dimensional diagram of the cavity with the front cover and the back cover Figure 2 ;

[0077] Figure 6 It is a three-dimensional schematic diagram of the material distribution turntable;

[0078] Figure 7 It is a schematic diagram of the cross section of the material distribution turntable;

[0079] Figure 8 This is a schematic diagram of the material distribution turntable rotating in the cavity;

[0080] Figure 9 This is a schematic diagram of the distribution turntable reversing in the cavity;

[0081] Figure 10 The working principle of the feeding machine Figure 1 ;

[0082] Figure 11 The working principle of the feeding machine Figure 2 ;

[0083] Figure 12 The working principle of the feeding machine Figure 3 ;

[0084] Figure 13 It is a side view of a material distribution turntable in another embodiment.

[0085] In the figure: 1. Cavity, 2. Front cover, 3. Rear cover, 4. Rotating shaft, 5. Positioning platform, 6. Aggregate buffer area, 7. Front cover channel 1, 8. Front cover channel 2, 9. Rear cover channel 1, 10. Rear cover channel 2, 11. Blanking chute 1, 12. Blanking chute 2, 13. Material distribution area, 14. Material distribution turntable, 15. Partition plate, 16. Measuring chute, 171. Pipeline 1, 172. Pipeline 2, 181. Pipeline 3, 182. Pipeline 4. DETAILED DESCRIPTION

[0086] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0087] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0088] Example 1

[0089] like Figure 1-9 : A precise metering two-way feeding device; comprising a hollow cavity 1;

[0090] a positioning platform 5 located at the top of the cavity 1 and in communication with the cavity 1;

[0091] A blanking trough 11 and a blanking trough 2 12 are located on both sides of the bottom of the cavity 1 and communicated with the cavity 1 .

[0092] The center of the hollow part of the cavity 1 is the material distribution area 13.

[0093] The top of the material distribution area 13 is provided with an opening 1, the positioning platform 5 is located above the opening 1, the hollow part of the positioning platform is the aggregate buffer area 6, and the material distribution area 13 is connected to the aggregate buffer area 6;

[0094] Opening 2 and opening 3 are symmetrically provided on both sides of the bottom of the material distribution area 13. The material drop trough 11 and the material drop trough 2 12 are symmetrically provided on both sides of the material distribution area 13 and are connected to the material distribution area 13 through opening 2 and opening 3 respectively.

[0095] The cross section of the material distribution area 13 perpendicular to its axis is circular; the material trough 11 and the material trough 2 12 are both hollow.

[0096] In some embodiments, the material distribution area 13 , the material drop trough 1 1 and the material drop trough 2 12 are all cylindrical and hollow; the second opening and the third opening are symmetrically arranged on both sides of the material distribution area 13 .

[0097] The cavity 1 is provided with a front cover 2 and a rear cover 3 on both sides of the axis of the material distribution area 13. The front cover 2 and the rear cover 3 are provided with a rotating shaft 4. The rotating shaft 4 is driven by power to rotate forward or reverse.

[0098] A material distribution turntable 14 is installed on the rotating shaft 4. The material distribution turntable 14 is adapted to the inner wall of the material distribution area 13 and rotates around the axis of the material distribution area 13 in the material distribution area 13;

[0099] The material distribution turntable 14 includes one or more metering troughs 16 ; in this embodiment, the number of metering troughs is six.

[0100] The rotation of the power is input by a motor or other power.

[0101] The material distribution turntable 14 includes circumferentially distributed partition plates 15, and a metering trough 16 is located between adjacent partition plates 15; the outermost edge of the cross section of the partition plate 15 is arc-shaped and fits the inner wall of the material distribution area 13;

[0102] The arc length of the adaptation section between the inner wall of the adjacent partition plate 15 and the inner wall of the material distribution area 13 is L1, and the arc length of the adaptation section between the outer wall of the adjacent partition plate 15 and the inner wall of the material distribution area 13 is L2.

[0103] The arc length of the matching section between the inner wall of the adjacent partition plate 15 and the inner wall of the material distribution area 13 is L1, and the shortest arc length from opening 1 to opening 2 or opening 3 on the inner wall of the material distribution area 13 is L3. Figure 9The green line in the middle shows the edge of the aggregate buffer area 6 in the hollow part of the positioning platform, which satisfies: L1<L3.

[0104] In some embodiments:

[0105] The arc length of the matching section between the outer wall of the adjacent partition plate 15 and the inner wall of the material distribution area 13 is L2, the arc length of the opening 1 is L4, the arc length of the opening 2 is L5, and the arc length of the opening 3 is L6; satisfying: L5≈L1, L6≈L1, L1<L4<L2.

[0106] Front cover channel 1 7 and front cover channel 2 8 are respectively provided on both sides of the bottom of the front cover 2. One end of the front cover channel 1 7 is adapted to be connected to the blanking trough 1 1; one end of the front cover channel 2 8 is adapted to be connected to the blanking trough 2 12;

[0107] A rear cover channel 1 9 and a rear cover channel 2 10 are respectively provided on both sides of the bottom of the rear cover 3 . One end of the rear cover channel 1 9 is adapted to be connected to the blanking trough 1 1 ; one end of the rear cover channel 2 10 is adapted to be connected to the blanking trough 2 12 .

[0108] Example 2

[0109] like Figure 1-10 ,especially Figure 10 A feeding machine includes a precise metering bidirectional feeding device, a silo, an air source, a pipeline and a target area.

[0110] The bottom of the silo is adapted to be connected to the top of the positioning platform 5; the material in the silo falls to the aggregate buffer area 6 due to gravity and then continues to fall into and fill the metering trough 16; to ensure this process, a vibration motor can often be configured.

[0111] The wind source includes a wind source 19 and a wind source 20; the wind source 19 and the wind source 2 20 of this embodiment are two independent wind sources;

[0112] The pipelines include pipeline one 171, pipeline two 172, pipeline three 181, and pipeline four 182;

[0113] The target areas include target area 1 and target area 2;

[0114] The other end of the front cover channel 1 7 is connected to the pipe 1 171 to the wind source 1 19, and the other end of the front cover channel 2 8 is adapted to connect to the pipe 4 182 to the target area 2;

[0115] The other end of the rear cover channel 1 9 is connected to the pipe 2 172 to the target area 1; the other end of the rear cover channel 2 10 is adapted to connect to the pipe 3 181 to the wind source 2 20.

[0116] Example 3

[0117] like Figure 1-12 ,especially Figure 11-12 , a feeding method, comprising the above-mentioned feeding machine and control system:

[0118] When the rotating shaft 4 drives the material distribution turntable 14 to rotate forward, the metering trough 16 carries the material and rotates forward along the inner wall of the material distribution area 13 until it is connected to the blanking trough 11. The material in the metering trough 16 then falls into the blanking trough 11 due to gravity and inertia. The air source 19 supplies air to the blanking trough 11 through the pipe 171 and blows the material in the blanking trough 11 through the pipe 2 172 to the target area 1; the cycle continues.

[0119] When the rotating shaft 4 drives the material distribution turntable 14 to reverse, the metering trough 16 carrying the material reverses along the inner wall of the material distribution area 13 to connect with the second material distribution trough 12, and then the material in the metering trough 16 falls into the second material distribution trough 12 due to gravity and inertia. The air source 20 supplies air to the second material distribution trough 12 through the pipe 3 181 and blows the material fallen into the second material distribution trough 12 through the pipe 4 182 to the target area 2; cycle.

[0120] Reversing principle: When the feeding amount of target area 1 reaches the preset amount, the rotating shaft 4 stops rotating forward and then switches to reverse; when the feeding amount of target area 2 reaches the preset amount, the rotating shaft 4 stops rotating reverse and then switches to forward.

[0121] The preset amount can be obtained by the number of times a single metering trough 16 passes through the blanking trough 11 or the blanking trough 2 12 according to the rotation speed of the rotating shaft 4; the weight of the material in the single metering trough 16 is known, and the feeding amount per unit time can be calculated based on the rotation speed of the rotating shaft 4. Similarly, it means that the feeding amount per unit time can be controlled by controlling the rotation speed of the rotating shaft 4.

[0122] Example 4

[0123] like Figure 11 ,

[0124] During the time period t1, the rotating shaft 4 drives the material distribution turntable 14 to continuously rotate forward with an adjustable speed;

[0125] During the time period t2, the rotating shaft 4 drives the material distribution turntable 14 to continuously reverse and the speed is adjustable;

[0126] It also includes a control system. The power of the rotating shaft 4 is set by the control system to control the rotation direction and speed; the air supply is also set by the control system.

[0127] During the time period t1, the air source 19 continuously supplies air;

[0128] During the time period t2, the air source 20 continues to supply air;

[0129] The time periods t1 and t2 are set according to the switching conditions and periods of the control system, where the switching conditions are:

[0130] When only one of target area 1 or target area 2 needs to be fed, cycle t1 or t2 is maintained;

[0131] When it is necessary to feed materials into both target area 1 and target area 2, the cycles t1 and t2 are switched periodically, thereby achieving alternating feeding of target area 1 and target area 2.

[0132] The control system controls the rotation of the powered rotating shaft 4 within the time period t1 or t2 to be continuous rotation.

[0133] Example 5

[0134] like Figure 12 , which is different from Example 4,

[0135] During the time period t1, the air source 19 supplies air intermittently;

[0136] During the time period t2, the air source 20 supplies air intermittently;

[0137] The control system controls the rotation of the power-driven rotating shaft 4 within the time period t1 or t2 to be a jog rotation at time intervals.

[0138] When the rotating shaft 4 drives the material distribution turntable 14 to rotate forward, the metering trough 16 carries the material and rotates forward along the inner wall of the material distribution area 13 until it is connected with the blanking trough 11. The material in the metering trough 16 then falls into the blanking trough 11 due to gravity and inertia. At this time, the power is paused, and the air source 19 starts to supply air through the pipe 171 to the blanking trough 11 and blows the material in the blanking trough 11 through the pipe 2 172 to the target area 1. The power then continues to rotate; the cycle is continued;

[0139] When the rotating shaft 4 drives the material distribution turntable 14 to reverse, the metering trough 16 carrying the material reverses along the inner wall of the material distribution area 13 to connect with the blanking trough 2 12, and then the material in the metering trough 16 falls into the blanking trough 2 12 due to gravity and inertia. At this time, the power is paused, and the air source 2 20 starts to supply air through the pipe 3 181 to the blanking trough 2 12 and blows the material fallen into the blanking trough 2 12 through the pipe 4 182 to the target area 2, and then the power continues to rotate; cycle.

[0140] Example 6

[0141] In Examples 3-5, air source 19 and air source 20 are two independent air sources. This embodiment differs in that air source 19 and air source 2 20 originate from the same air source. The control system then controls a valve to separate the single air source into air source 19 and air source 2 20. While using the same air source may reduce the life of the blowers in this embodiment, the bidirectional alternating feeding function is retained. Using higher-quality blowers can reduce the number of blowers required.

[0142] Example 7

[0143] Unlike the above embodiment in which the rotating shaft 4 and the material distribution turntable 14 are installed together as a whole, the rotating shaft 4 and the material distribution turntable 14 in this embodiment are integrated.

[0144] Example 8

[0145] like Figure 13 , different from the above embodiment, the material distribution turntable 14 includes three metering troughs 16 evenly distributed around the circumference. Accordingly, the number of metering troughs 16 can also be set to two, four, five, seven, eight or more, and the number is determined by the required feeding amount and the internal space size of the material distribution area.

[0146] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention.

[0147] 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 precise metering bidirectional feeding device, characterized by: comprising a hollow cavity (1); a positioning platform (5) located at the top of the cavity (1) and in communication with the cavity (1); A first blanking trough (11) and a second blanking trough (12) are located on both sides of the bottom of the cavity (1) and communicated with the cavity (1).

2. The precise metering bidirectional feeding device according to claim 1, characterized in that: The hollow part of the cavity (1) is a material distribution area (13). The top of the material distribution area (13) is provided with an opening 1, the positioning platform (5) is located above the opening 1, the hollow portion of the positioning platform is the aggregate buffer area (6), and the material distribution area (13) is connected to the aggregate buffer area (6); The bottom of the material distribution area (13) is provided with opening two and opening three on both sides. The material drop trough one (11) and the material drop trough two (12) are provided on both sides of the material distribution area (13) and are connected to the material distribution area (13) through opening two and opening three respectively.

3. The precise metering bidirectional feeding device according to claim 2, characterized in that: The cross section of the material distribution area (13) perpendicular to its axis is circular; the first material drop trough (11) and the second material drop trough (12) are both hollow.

4. The precise metering bidirectional feeding device according to claim 3, characterized in that: The material distribution area (13), the first material drop trough (11) and the second material drop trough (12) are all cylindrical and hollow; the second opening and the third opening are symmetrically arranged on both sides of the material distribution area (13).

5. The precise metering bidirectional feeding device according to claim 2, characterized in that: The cavity (1) is provided with a front cover (2) and a rear cover (3) on both sides of the axial centerline of the material distribution area (13), and the front cover (2) and the rear cover (3) are provided with a rotating shaft (4). The rotating shaft (4) is driven by power to rotate forward or reverse. A material distribution turntable (14) is installed on the rotating shaft (4), and the material distribution turntable (14) is adapted to the inner wall of the material distribution area (13) and rotates in the material distribution area (13); The material distribution turntable (14) includes more than one metering trough (16).

6. The precise metering bidirectional feeding device according to claim 5, characterized in that: The rotating shaft (4) and the material distribution turntable (14) are installed in conjunction with each other to form a whole, or the rotating shaft (4) and the material distribution turntable (14) are integrated.

7. The precise metering bidirectional feeding device according to claim 5, characterized in that: The material distribution turntable (14) comprises three, four, five, six, seven or eight metering troughs (16) uniformly distributed in the circumferential direction.

8. The precise metering bidirectional feeding device according to claim 5, characterized in that: The material distribution turntable (14) includes circumferentially distributed spacer plates (15), and the metering troughs (16) are located between adjacent spacer plates (15); the outermost edge of the cross section of the spacer plates (15) is arc-shaped and fits the inner wall of the material distribution area (13); The arc length of the matching section between the inner wall of the adjacent partition plate (15) and the inner wall of the material distribution area (13) is L1. The shortest arc length of the opening 1 to the opening 2 or the opening 3 on the inner wall of the material distribution area (13) is L3, Satisfies: L1<L3.

9. The precise metering bidirectional feeding device according to claim 8, characterized in that: The arc length of the matching section between the outer wall of the adjacent partition plate (15) and the inner wall of the material distribution area (13) is L2, the arc length of the first opening is L4, the arc length of the second opening is L5, and the arc length of the third opening is L6; Satisfies: L5≈L1, L6≈L1, L1<L4<L2.

10. The precise metering bidirectional feeding device according to any one of claims 4 to 9, characterized in that: Front cover channel 1 (7) and front cover channel 2 (8) are respectively provided on both sides of the bottom of the front cover (2); one end of the front cover channel 1 (7) is adapted to be connected to blanking trough 1 (11); one end of the front cover channel 2 (8) is adapted to be connected to blanking trough 2 (12); The two sides of the bottom of the rear cover (3) are respectively provided with a rear cover channel 1 (9) and a rear cover channel 2 (10), one end of the rear cover channel 1 (9) is adapted to be connected to the blanking trough 1 (11); and one end of the rear cover channel 2 (10) is adapted to be connected to the blanking trough 2 (12).

11. A feeding machine comprising the precise metering bidirectional feeding device according to claim 10, characterized in that: It also includes silos, air sources, pipelines and target areas. The bottom of the silo is adaptively connected to the top of the positioning platform (5); the material in the silo falls to the aggregate buffer area (6) due to gravity and then continues to fall into and fill the metering trough (16); The wind source includes a wind source 1 (19) and a wind source 2 (20); the wind source 1 (19) and the wind source 2 (20) are two independent wind sources or originate from the same wind source; The pipelines include pipeline one (171), pipeline two (172), pipeline three (181), and pipeline four (182); The target area includes target area 1 and target area 2; The other end of the front cover channel 1 (7) is adapted to connect the communication pipe 1 (171) to the wind source 1 (19), and the other end of the front cover channel 2 (8) is adapted to connect the communication pipe 4 (182) to the target area 2; The other end of the rear cover channel 1 (9) is connected to the pipe 2 (172) to the target area 1; the other end of the rear cover channel 2 (10) is connected to the pipe 3 (181) to the wind source 2 (20).

12. A feeding method comprising the feeding machine according to claim 10 or 11, characterized in that: When the rotating shaft (4) drives the material distribution turntable (14) to rotate forward, the metering trough (16) carries the material and rotates forward along the inner wall of the material distribution area (13) until it is connected with the blanking trough (11). Then, the material in the metering trough (16) falls into the blanking trough (11) due to gravity and inertia. The air source (19) supplies air to the blanking trough (11) through the pipe (171) and blows the material falling into the blanking trough (11) through the pipe (172) to the target area (1). When the rotating shaft (4) drives the material distribution turntable (14) to reverse, the metering trough (16) carrying the material reverses along the inner wall of the material distribution area (13) to connect with the second material distribution trough (12), and then the material in the metering trough (16) falls into the second material distribution trough (12) due to gravity and inertia, and the second air source (20) supplies air to the second material distribution trough (12) through the third pipe (181) and blows the material falling into the second material distribution trough (12) through the fourth pipe (182) to the target area 2.

13. The feeding method according to claim 12, characterized in that: During the time period t1, the rotating shaft (4) drives the material distribution turntable (14) to rotate forward at an adjustable speed; During the time period t2, the rotating shaft (4) drives the material distribution turntable (14) to reverse and the speed is adjustable; The system also includes a control system, wherein the power of the rotating shaft (4) is controlled by the control system to set the rotation direction and speed; the air supply of the air source is controlled by the control system. During the time period t1, the air source 1 (19) supplies air continuously or intermittently; During the time period t2, the second air source (20) supplies air continuously or intermittently; When wind source 1 (19) and wind source 2 (20) originate from the same wind source, the control system controls a valve to separate the same wind source into wind source 1 (19) and wind source 2 (20); when wind source 1 (19) and wind source 2 (20) are two independent wind sources, the control system controls wind source 1 (19) and wind source 2 (20) respectively.

14. The feeding method according to claim 13, characterized in that: The time periods t1 and t2 are set according to the switching conditions and periods of the control system, wherein the switching conditions are: When only one of target area 1 or target area 2 needs to be fed, cycle t1 or t2 is maintained; When it is necessary to feed materials into both target area 1 and target area 2, the cycles t1 and t2 are switched periodically.

15. The feeding method according to claim 13, characterized in that: The control system controls the rotation of the power-driven rotating shaft (4) within a time period t1 or t2 to be continuous rotation or jog rotation at time intervals.

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