Accurate metering two-way feeding device and feeding machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KELING INSTR CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-05
Smart Images
Figure CN224324805U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of material conveying, specifically relating to a precise metering bidirectional feeding device and a feeding machine. Background Technology
[0002] Precise material delivery often relies on accurate weighing to complete the material distribution and then feeding. The applicant's new research has found that the material delivery can be achieved by setting the spatial volume to convert it into weight, which can replace the simple weighing scheme. Under the premise of ensuring accurate measurement, it is often more suitable for conveying powdery or granular materials.
[0003] To ensure the transport of the aforementioned materials, it is often necessary to coordinate with fans and pipelines. If each target feeding area is equipped with a feeding device, in scenarios with several or even dozens of feeding areas, it will greatly increase the procurement, use and maintenance costs for the feeding demander.
[0004] For example, the CN201312518Y automatic feeder, its instruction manual
[003] section mentions that "the scattering device has the following structural forms... using pipes and high-speed airflow 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 scattering devices, which has problems such as insufficient economy.
[0005] For example, the instruction manual of CN200983790Y bidirectional vibrating fishpond feeder mentions in paragraph
[005] that "when in use, the feed enters the receiving hopper from the feed box and is distributed bidirectionally through the bidirectional distribution box; when the vibrating motor rotates, it drives the feeding vibrating box to move up and down through the eccentric bushing and connecting rod to generate vibration and transport the feed forward, through the throwing disc cover to the throwing disc; the feed enters the throwing disc, the throwing motor makes the throwing disc rotate, and under the action of centrifugal force, the feed is thrown out." The principle of this application is mainly to achieve bidirectional distribution through the distribution box, and it is suitable for the throwing disc to rotate and use centrifugal force to throw the feed, which has problems such as insufficient economy.
[0006] For example, CN119631954A describes a feeding machine for aquaculture. Section
[002] of its instruction manual states that "existing feeding machines set the feeding amount based on the feeding time. This time-controlled feeding method cannot accurately control the feeding amount. Chinese Patent 201510047161.0... That is to say, four weighing modules are needed to form a metering unit. The entire feeding machine is the metering unit, but what really needs to be measured is the feed inside the feeding machine... In addition, four weighing modules are needed, which is too costly."
[0007] The instruction manual
[005] section mentions that "a feed distribution wheel is set under the discharge port of the feed container. The rotation of the feed distribution wheel causes the feed in the container to be distributed out... or the distributed feed falls into the receiving device with rotating blades and enters the conveying pipe and is blown by compressed air to a distant aquaculture pond";
[0008] The instruction manual
[006] section mentions "...a multi-channel converter, which is provided with an inlet and multiple outlets. The inlet is connected to a rotatable bent pipe inlet, and the outlet of the bent pipe can be connected to multiple outlets. Each outlet can be provided with a feed distribution pipe leading to a feeding point in each aquaculture pond...which can realize the precise feeding of feed to each aquaculture pond in turn";
[0009] The specification
[014] states that "the feeding mechanism, connecting seat, and feeding container of the present invention, together with the feed, form a metering unit... other components of the feeder are not within the metering range, so the metering is accurate." The specification
[019] states that "the feeding mechanism is a conveyor belt set in the connecting seat 2. The conveyor belt sends the feed in the container 1 out and into the receiving device 15 with the rotating blade 16; the rotating blade 16 carries the feed to the lower side of the receiving device 15 and into the conveying pipe 29, where it is blown by compressed air to a distant aquaculture pond; when the feeding mechanism stops working, the feed in the container 1 will not decrease. The feeding mechanism does not contact the receiving device 15, and the metering accuracy is high." The specification
[027] states that "...it can effectively prevent the feed from being back-blown by compressed air due to the increased gap between the rotating blade 16 and the receiving device housing..."
[0010] In summary, CN119631954A works by redesigning the measuring unit through a feeding mechanism to ensure metering accuracy, and by using a feed receiver and rotating vanes to prevent feed from being blown back. This solution has a complex structure, many bends, and is still based on weight measurement.
[0011] The applicant aims to achieve accurate measurement while reducing total equipment costs, as well as operating and maintenance costs. Research has revealed other shortcomings in existing material handling equipment:
[0012] (1) When using wind power in conjunction with pipeline to transport materials, too many valves or bends will lead to high wind resistance (such as CN119631954A), especially right-angle bends. High wind resistance will result in insufficient wind power for long-distance material blowing (such as feed, fertilizer, rice, sewage treatment powder, etc.), which will not be able to be delivered to the nozzle position or the material speed will be significantly too low when delivered to the nozzle position. The above may lead to uneven, untimely, or even stuck material in the pipeline.
[0013] (2) Existing equipment is often not accurate enough in measuring, and the weight of each feeding varies too much. If applied to aquaculture, it will not be able to accurately feed and will not be able to control the intake of fish and shrimp as needed, which may easily lead to overfeeding or underfeeding.
[0014] (3) If a feeding device (such as CN201312518Y, CN200983790Y) is configured for every two target feeding areas, it will be difficult to solve the above problems.
[0015] The applicant considered changing the feeding direction of unidirectional feeding through a three-way valve under the premise of accurate metering, so that one feeding device can feed two target feeding areas. However, this would also increase the total cost and the number of failure points. During the feeding period, the fan needs to run continuously, which would reduce the service life of the fan. There are also problems such as excessive valves or bends as mentioned in (1), which would lead to high wind resistance. Utility Model Content
[0016] The technical problem to be solved by this application is to provide a precise metering bidirectional feeding device and feeder to solve one or more of the problems mentioned in the background art or to achieve better technical effects.
[0017] In order to solve the above-mentioned technical problems, the inventors have derived the technical solution of this application through practice and summarization. This application discloses a precise metering bidirectional feeding device, which includes a hollow cavity.
[0018] A positioning platform located at the top of the cavity and communicating with the cavity;
[0019] Material discharge chute one and material discharge chute two are located on both sides of the bottom of the cavity and are in communication with the cavity.
[0020] Furthermore, the center of the hollow portion of the cavity is a material distribution area.
[0021] The top of the material distribution area is provided with an opening, the positioning platform is located above the opening, the hollow part of the positioning platform is a material collection buffer area, and the material distribution area is connected to the material collection buffer area;
[0022] The bottom of the material distribution area is provided with opening two and opening three on both sides. The material discharge chute one and material discharge chute two are located on both sides of the material distribution area and are connected to the material distribution area through opening two and opening three respectively.
[0023] Furthermore, the cross-section of the material distribution area perpendicular to its axis is circular; both the first material discharge trough and the second material discharge trough are hollow.
[0024] Furthermore, the material distribution area, the first material discharge chute, and the second material discharge chute are all cylindrical and hollow; the second and third openings are symmetrically arranged on both sides of the material distribution area.
[0025] Furthermore, a front cover and a rear cover are respectively installed on both sides of the cavity along the axis of the material distribution area. The front cover and the rear cover are equipped with rotating shafts, which are driven by a power source to rotate forward or backward.
[0026] A material distribution turntable is installed on the rotating shaft. 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 within the material distribution area.
[0027] The material distribution turntable includes one or more metering troughs;
[0028] Furthermore, the rotating shaft and the material distribution turntable are installed together as a whole, or the rotating shaft and the material distribution turntable are integrated.
[0029] The power is supplied by an electric motor.
[0030] In some embodiments, the dispensing turntable includes three, four, five, six, seven, or eight metering troughs evenly distributed around the circumference.
[0031] Furthermore, the material distribution turntable includes circumferentially distributed partitions, with the metering trough between adjacent partitions; the outermost edge of the partition's cross-section is arc-shaped and adapted to 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 opening one to opening two or opening three on the inner wall of the material distribution area is L3.
[0033] Satisfies: L1 < L3.
[0034] Furthermore, the arc length of the matching segment 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] It satisfies: L5≈L1, L6≈L1, L1<L4<L2.
[0037] Furthermore, the bottom sides of the front cover are respectively provided with a front cover channel one and a front cover channel two, one end of the front cover channel one is adapted to connect with a material drop chute one; one end of the front cover channel two is adapted to connect with a material drop chute two.
[0038] The bottom of the rear cover is provided with a rear cover channel one and a rear cover channel two on both sides respectively. One end of the rear cover channel one is adapted to connect to the material drop chute one; one end of the rear cover channel two is adapted to connect to the material drop chute two.
[0039] This application also discloses a feeding machine, including a precise metering bidirectional feeding device, and further including a hopper, an air source, pipelines, and a target area.
[0040] The bottom of the hopper is adapted to the top of the positioning platform; the material in the hopper falls into the material collection buffer area due to gravity and then continues to fall into and fill the metering trough;
[0041] The wind source includes wind source one and wind source two; wind source one and wind source two are two independent wind sources or originate from the same wind source;
[0042] The pipeline includes Pipeline 1, Pipeline 2, Pipeline 3, and Pipeline 4;
[0043] The target area includes target area one and target area two;
[0044] The other end of the front cover channel one is adapted to connect pipe one to the air source one, and the other end of the front cover channel two is adapted to connect pipe four to the target area two;
[0045] The other end of the rear cover channel one is connected to pipe two to target area one; the other end of the rear cover channel two is connected to pipe three to air source two.
[0046] This application also discloses a feeding method, including the aforementioned feeding machine.
[0047] When the rotating shaft drives the material distribution turntable to rotate forward, the metering trough carries the material along the inner wall of the distribution area to connect with the first discharge trough. Then, the material in the metering trough falls into the first discharge trough due to gravity and inertia. The first air source sends air to the first discharge trough through the first pipe and blows the material that has fallen into the first discharge trough through the second pipe to the target area.
[0048] 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 distribution area until it connects with the discharge trough two. Then, the material in the metering trough falls into the discharge trough two due to gravity and inertia. The air source two sends air to the discharge trough two through the pipe three and blows the material that has fallen into the discharge trough two through the pipe four to the target area two.
[0049] Preferred,
[0050] Within the time period t1, the rotating shaft drives the material distribution turntable to rotate forward and the speed is adjustable;
[0051] Within the time period t2, the rotating shaft drives the material distribution turntable to reverse in reverse and the speed is adjustable;
[0052] It also includes a control system, in which the power of the rotating shaft is set and controlled to adjust the rotation direction and speed; the air supply from the air source is also set and controlled by the control system.
[0053] Within the time period t1, the air source 1 continuously supplies air or supplies air intermittently;
[0054] During the time period t2, the second air source continuously or intermittently supplies air.
[0055] When air source one and air source two originate from the same air source, the control system controls a valve to separate the same air source into air source one and air source two; when air source one and air source two are two independent air sources, the control system controls air source one and air source two respectively.
[0056] Preferred,
[0057] The time periods t1 and t2 are set according to the switching conditions and period by the control system, wherein the switching conditions are:
[0058] If only one of the target zones, Target Zone 1 or Target Zone 2, is fed, then the cycle t1 or t2 is maintained.
[0059] When it is necessary to feed materials to both target area one and target area two, the cycles t1 and t2 should be switched periodically.
[0060] Preferred,
[0061] The control system controls the rotation of the power-driven rotating shaft within a time period t1 or t2 to be either continuous rotation or intermittent rotation at time intervals.
[0062] Compared with the prior art, this application can achieve the following technical effects:
[0063] 1. Precise metering and feeding: When the metering trough is at the top, the material in the hopper falls to the collection buffer area due to gravity and continues to fall into and fill the metering trough. When the rotating shaft drives the distribution turntable to rotate forward, the metering trough carries the material along the inner wall of the distribution area to connect with the first discharge trough. Then, the material in the metering trough falls into the first discharge trough due to gravity and inertia. The first air source sends air to the first discharge trough through the first pipe and blows the material falling into the first discharge trough through the second pipe to the target area. When the rotating shaft drives the distribution turntable to rotate backward, the metering trough carries the material along the inner wall of the distribution area to connect with the second discharge trough. Then, the material in the metering trough falls into the second discharge trough due to gravity and inertia. The second air source sends air to the second discharge trough through the third pipe and blows the material falling into the second discharge trough through the fourth pipe to the target area.
[0064] The above scheme can achieve accurate metering based on the volume of the metering trough and bidirectional feeding based on the feeding method, so that one feeding machine can achieve alternating and accurate feeding to two target feeding areas.
[0065] 2. Two-way feeding: Based on the above method, feeding chute one and feeding chute two can realize one-way feeding or two-way alternating feeding, so that one feeding machine can realize alternating and precise feeding to two target feeding areas.
[0066] 3. Reduced valves or bends, reducing air resistance: The air source one, as described in this application, delivers air to the material chute one via pipe one, and then blows the material falling into the material chute one through pipe two to the target area one; the air source two, via pipe three, delivers air to the material chute two, and then blows the material falling into the material chute two through pipe four to the target area two. Therefore, the air source, pipes, and target area can be aligned in a straight line to the maximum extent possible, eliminating valves or bends in the feeding process, reducing air resistance, and increasing the delivery distance.
[0067] 4. The L1 < L3 of this application can ensure that the metering trough is in a closed state in the L3 area, that is, the material in the metering trough in the L3 area is always full and will not overflow from the opening one / two / three, thus ensuring sealing, metering accuracy and feeding accuracy.
[0068] 5. In this application, L1 < L4 < L2 is preferred to help the metering trough receive material at the top opening and fill the metering trough smoothly. However, L1 < L4 < L2 is not the only limitation to ensure this effect. In this application, L5 / L6 ≈ L1 is preferred to help the material be blown without residue when the material distribution turntable is running. However, L5 / L6 ≈ L1 is not the only limitation to ensure this effect.
[0069] 6. The control system controls the speed of the motor or other power source to achieve adjustable speed of the rotating shaft driving the material distribution turntable to rotate forward or backward. The rotation speed of the material distribution turntable is more stable and controllable, which can ensure that the metering trough will not connect with the first or second discharge trough in advance, thereby further ensuring accurate feeding.
[0070] 7. Fan Protection: When selecting two independent fans (Air Source 1 and Air Source 2), a single feeder alternately and precisely feeds material to the two target feeding areas. When material is fed to one target feeding area, the corresponding fan operates, and the other fan can be paused. This solution avoids the problem of a significantly reduced lifespan caused by having only one fan operating continuously. Attached Figure Description
[0071] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0072] Figure 1 This is a three-dimensional schematic diagram of the cavity and the material distribution turntable;
[0073] Figure 2 This is a three-dimensional schematic diagram of the cavity;
[0074] Figure 3 This is a side view of the cavity;
[0075] Figure 4This is a three-dimensional diagram of the cavity in conjunction with the front and rear covers. Figure 1 ;
[0076] Figure 5 This is a three-dimensional diagram of the cavity in conjunction with the front and rear covers. Figure 2 ;
[0077] Figure 6 This is a 3D schematic diagram of the material distribution turntable;
[0078] Figure 7 This 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 forward inside the cavity;
[0080] Figure 9 This is a schematic diagram of the material distribution turntable reversing inside 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 This is a side view of the material distribution turntable in another embodiment.
[0085] In the diagram: 1. Cavity, 2. Front cover, 3. Rear cover, 4. Rotating shaft, 5. Positioning platform, 6. Material collection buffer area, 7. Front cover channel one, 8. Front cover channel two, 9. Rear cover channel one, 10. Rear cover channel two, 11. Material drop chute one, 12. Material drop chute two, 13. Material distribution area, 14. Material distribution turntable, 15. Partition plate, 16. Metering trough, 171. Pipe one, 172. Pipe two, 181. Pipe three, 182. Pipe four. Detailed Implementation
[0086] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0087] The application principle of this application 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 bidirectional feeding device; comprising a hollow cavity 1;
[0090] Positioning platform 5 located at the top of cavity 1 and connected to cavity 1;
[0091] Material discharge trough 11 and material discharge trough 2 12 are located on both sides of the bottom of cavity 1 and are connected to cavity 1.
[0092] The central position of the hollow part of cavity 1 is the material distribution area 13.
[0093] The top of the material distribution area 13 has an opening, the positioning platform 5 is located above the opening, the hollow part of the positioning platform is the material collection buffer area 6, and the material distribution area 13 is connected to the material collection buffer area 6.
[0094] The bottom of the material distribution area 13 is symmetrically provided with openings 2 and 3 on both sides. The material discharge chute 11 and material discharge chute 22 are symmetrically provided on both sides of the material distribution area 13 and are connected to the material distribution area 13 through openings 2 and 3 respectively.
[0095] The cross-section of the material distribution area 13 perpendicular to its axis is circular; both the first material drop chute 11 and the second material drop chute 12 are hollow.
[0096] In some embodiments, the material distribution area 13, the first material discharge chute 11, and the second material discharge chute 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 front cover 2 and the rear cover 3 are respectively installed on both sides of the cavity 1 along the axis of the material distribution area 13. The front cover 2 and the rear cover 3 are equipped with a rotating shaft 4, which is driven by a power source to rotate forward or in 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 within 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 motor is powered by an electric motor or other power input.
[0101] The material distribution turntable 14 includes circumferentially distributed partition plates 15, and a metering trough 16 between adjacent partition plates 15; the outermost edge of the cross-section of the partition plate 15 is arc-shaped and adapted to the inner wall of the material distribution area 13.
[0102] 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 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.
[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 of opening one to opening two or opening three on the inner wall of the material distribution area 13 is L3. Figure 9The green line shows the edge of the material buffer area 6 in the hollow part of the positioning platform, which satisfies: L1 < L3.
[0104] In some implementation methods:
[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 first opening is L4, the arc length of the second opening is L5, and the arc length of the third opening is L6; satisfying: L5≈L1, L6≈L1, L1<L4<L2.
[0106] The bottom sides of the front cover 2 are respectively provided with front cover channel 1 7 and front cover channel 2 8. One end of front cover channel 1 7 is adapted to connect to material drop chute 1 11; one end of front cover channel 2 8 is adapted to connect to material drop chute 2 12.
[0107] The bottom of the rear cover 3 is provided with rear cover channel 1 9 and rear cover channel 2 10 on both sides respectively. One end of rear cover channel 1 9 is adapted to connect to material drop chute 1 11; one end of rear cover channel 2 10 is adapted to connect to material drop chute 2 12.
[0108] Example 2
[0109] like Figure 1-10 ,especially Figure 10 A feeding machine includes a precise metering bidirectional feeding device, and also includes a hopper, an air source, pipelines, and a target area.
[0110] The bottom of the hopper is adapted to the top of the positioning platform 5; the material in the hopper falls to the collection 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 air source includes air source one 19 and air source two 20; in this embodiment, air source one 19 and air source two 20 are two independent air sources;
[0112] The pipeline includes Pipeline 171, Pipeline 272, Pipeline 3181, and Pipeline 4182;
[0113] The target area includes target area one and target area two;
[0114] The other end of the front cover channel 17 is connected to the air source 19 via pipe 171, and the other end of the front cover channel 28 is adapted to connect to the target area 2 via pipe 4182.
[0115] The other end of the rear cover channel 19 is connected to the second pipe 172 to the target area 1; the other end of the rear cover channel 210 is adapted to connect to the third pipe 181 to the air source 220.
[0116] Example 3
[0117] like Figure 1-12 ,especially Figure 11-12 A feeding method, comprising the aforementioned feeding machine and control system:
[0118] When the rotating shaft 4 drives the material distribution turntable 14 to rotate clockwise, the metering trough 16 carries the material along the inner wall of the distribution area 13 to connect with the discharge trough 11. Then, the material in the metering trough 16 falls into the discharge trough 11 due to gravity and inertia. The air source 19 sends air to the discharge trough 11 through the pipe 171 and blows the material that has fallen into the discharge 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 carries the material along the inner wall of the distribution area 13 and reverses to connect with the discharge trough 12. Then, the material in the metering trough 16 falls into the discharge trough 12 due to gravity and inertia. The air source 20 sends air to the discharge trough 12 through the pipe 3 181 and blows the material that has fallen into the discharge trough 12 through the pipe 4 182 to the target area 2; the cycle continues.
[0120] Reversal principle: When the feeding amount of target zone one reaches the preset amount, the rotating shaft 4 stops rotating forward and then switches to reverse rotation; when the feeding amount of target zone two reaches the preset amount, the rotating shaft 4 stops rotating in reverse and then switches to forward rotation.
[0121] The preset amount can be obtained by the rotation speed of the rotating shaft 4, which can determine the number of times a single metering trough 16 passes through the first dropping trough 11 or the second trough 12. The weight of the material in a single metering trough 16 is known, so the amount of material fed per unit time can be calculated based on the rotation speed of the rotating shaft 4. Similarly, it means that the amount of material fed per unit time can be controlled by controlling the rotation speed of the rotating shaft 4.
[0122] Example 4
[0123] like Figure 11 ,
[0124] Within the time period t1, the rotating shaft 4 drives the material distribution turntable 14 to rotate continuously in the forward direction and the speed is adjustable;
[0125] Within the time period t2, the rotating shaft 4 drives the material distribution turntable 14 to continuously reverse in reverse and the speed is adjustable;
[0126] It also includes a control system, in which the power of the rotating shaft 4 is set and controlled by the control system to adjust the rotation direction and speed; the air supply is also set and controlled by the control system.
[0127] During time period t1, air source 19 continuously supplies air;
[0128] During time period t2, air source 20 continuously supplies air;
[0129] The time periods t1 and t2 are set according to the switching conditions and period of the control system, where the switching conditions are:
[0130] If only one of the target zones, Target Zone 1 or Target Zone 2, is fed, then the cycle t1 or t2 is maintained.
[0131] When it is necessary to feed materials to both target area one and target area two, the cycles t1 and t2 are switched periodically. This allows for alternating feeding of materials to target area one and target area two.
[0132] The control system controls the rotation of the power-driven rotating shaft 4 to be continuous within the time period t1 or t2.
[0133] Example 5
[0134] like Figure 12 Unlike Example 4,
[0135] During time period t1, air source 19 intermittently supplies air;
[0136] During time period t2, air source 20 intermittently supplies air;
[0137] The control system controls the rotation of the power-driven rotating shaft 4 within the time period t1 or t2 as a point rotation at time intervals.
[0138] When the rotating shaft 4 drives the material distribution turntable 14 to rotate clockwise, the metering trough 16 carries the material along the inner wall of the distribution area 13 and rotates clockwise until it connects with the discharge trough 11. Then, the material in the metering trough 16 falls into the discharge trough 11 due to gravity and inertia. At this time, the power jog stops, the air source 19 starts to send air through the pipe 171 to the discharge trough 11 and blows the material that has fallen into the discharge trough 11 through the pipe 2 172 to the target area 1. Then the power continues to rotate; the cycle continues.
[0139] When the rotating shaft 4 drives the material distribution turntable 14 to reverse, the metering trough 16 carries the material along the inner wall of the distribution area 13 and reverses to connect with the discharge trough 12. Then, the material in the metering trough 16 falls into the discharge trough 12 due to gravity and inertia. At this time, the power jog stops, and the air source 20 starts to send air through the pipe 3 181 to the discharge trough 12 and blows the material that has fallen into the discharge trough 12 through the pipe 4 182 to the target area 2. Then the power continues to rotate; the cycle continues.
[0140] Example 6
[0141] In Examples 3-5, Air Source 19 and Air Source 20 are two independent air sources. Independent air source solutions do not require control valves. The difference in this example is that Air Source 19 and Air Source 20 originate from the same air source. Therefore, the control system controls a valve to separate the same air source into Air Source 19 and Air Source 20. Although using a single air source may reduce the lifespan of the blowers, this example retains the bidirectional alternating feeding function. Using higher-quality blowers can correspondingly reduce the number of blowers required.
[0142] Example 7
[0143] Unlike the above embodiments where the rotating shaft 4 and the material distribution turntable 14 are installed as a whole, in this embodiment the rotating shaft 4 and the material distribution turntable 14 are integrated.
[0144] Example 8
[0145] like Figure 13 Unlike the embodiments described above, the material distribution turntable 14 includes three circumferentially distributed metering troughs 16. Accordingly, the number of metering troughs 16 can also be set to two, four, five, seven, eight or more, depending on the required feeding amount and the size of the internal space of the material distribution area.
[0146] It will be apparent to those skilled in the art that this 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 this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
[0147] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A precise metering bidirectional feeding device, characterized in that: Including hollow cavity (1); A positioning platform (5) located at the top of the cavity (1) and communicating with the cavity (1); Material discharge chute 1 (11) and material discharge chute 2 (12) are located on both sides of the bottom of the cavity (1) and communicate with the cavity (1). The hollow part of the cavity (1) is the material distribution area (13); It also includes a material distribution turntable (14), which is adapted to the inner wall of the material distribution area (13) and rotates within the material distribution area (13); the material distribution turntable (14) includes circumferentially distributed partition plates (15), and a metering trough (16) is between adjacent partition plates (15); the outermost edge of the cross-section of the partition plate (15) is arc-shaped and adapted to 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 material distribution area (13) has an opening at the top and openings 2 and 3 on both sides of the bottom. The shortest arc length of opening one to opening two or opening three on the inner wall of the material distribution area (13) is L3. Satisfies: L1 < L3.
2. The precise metering bidirectional feeding device according to claim 1, characterized in that: The positioning platform (5) is located above the opening, and the hollow part of the positioning platform is the material collection buffer area (6). The material distribution area (13) is connected to the material collection buffer area (6). The first material discharge chute (11) and the second material discharge chute (12) are located 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 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 fitted with a front cover (2) and a rear cover (3) on both sides along the axis of the material distribution area (13). The front cover (2) and the rear cover (3) are fitted with a rotating shaft (4). The rotating shaft (4) is driven by a power source to rotate forward or backward. The rotating shaft (4) is fitted with a material distribution turntable (14). The material distribution turntable (14) includes one or more metering troughs (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 together as 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) includes three, four, five, six, seven or eight metering troughs (16) evenly distributed around the circumference.
8. The precise metering bidirectional feeding device according to claim 5, 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. It satisfies: L5≈L1, L6≈L1, L1<L4<L2.
9. A precise metering bidirectional feeding device according to any one of claims 5-8, characterized in that: The front cover (2) is provided with a front cover channel 1 (7) and a front cover channel 2 (8) on both sides of the bottom. One end of the front cover channel 1 (7) is adapted to connect to the material drop chute 1 (11); one end of the front cover channel 2 (8) is adapted to connect to the material drop chute 2 (12). The bottom sides of the rear cover (3) are respectively provided with rear cover channel one (9) and rear cover channel two (10). One end of the rear cover channel one (9) is adapted to connect to the material drop trough one (11); one end of the rear cover channel two (10) is adapted to connect to the material drop trough two (12).
10. A feeding machine, comprising the precise metering bidirectional feeding device as described in claim 9, characterized in that: It also includes silos, air sources, pipelines, and target areas. The bottom of the hopper is adapted to the top of the positioning platform (5); the material in the hopper falls to the material collection buffer area (6) due to gravity and then continues to fall into and fill the metering trough (16). The wind source includes wind source one (19) and wind source two (20); wind source one (19) and wind source two (20) are two independent wind sources or originate from the same wind source; The pipeline includes pipeline one (171), pipeline two (172), pipeline three (181), and pipeline four (182); The target area includes target area one and target area two; The other end of the front cover channel one (7) is adapted to the connecting pipe one (171) to the air source one (19), and the other end of the front cover channel two (8) is adapted to the connecting pipe four (182) to the target area two; The other end of the rear cover channel one (9) is connected to the second pipe (172) to the target area one; the other end of the rear cover channel two (10) is connected to the third pipe (181) to the second air source (20).