Accurate feeding device and method for liquid feed breeding

Abstract

The invention discloses an accurate feeding device and method for liquid feed breeding, and belongs to the technical field of pig breeding. The problem that the feeding amount of liquid feed cannot be accurately controlled in an existing feeding mode is solved. The device specifically comprises a feed tank, a water tank, a stirring tank, a self-priming pump, a weighing adjusting mechanism and a feeding mechanism, the feed tank and the water tank are connected with the stirring tank through a feed pipe and a water pipe respectively, the stirring tank is connected with the feeding end of the weighing adjusting mechanism through a conveying pipeline, and the discharging end of the weighing adjusting mechanism is connected with the feeding mechanism. Feed and tap water in the feed tank and the water tank enter the stirring tank through the feed pipe and the water pipe correspondingly to be stirred and mixed, the mixed feed and tap water are weighed through the weighing adjusting mechanism and then quantitatively fed into the feeding mechanism for feeding, and it is guaranteed that the feeding amount of each time of feeding is equal; the feed and the tap water are mixed under the stirring action of the stirring tank, so that the proportion difference between the delivered liquid feed is reduced, and uneven distribution of nutritional ingredients during successive feeding is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pig breeding, and in particular to a precise feeding device and method for liquid feed breeding. Background Art

[0002] As people's requirements for food safety and nutritional health are increasing, pork, as one of the important sources of meat, is also experiencing an increasing market demand. In the current breeding industry, the use of liquid feed is dominant; liquid feed tastes better than dry feed, and can better help weaned piglets transition and improve the survival rate of piglets; and the use of liquid feed reduces the generation of dust, which irritates the respiratory tract and reduces the risk of pigs suffering from respiratory diseases. However, when using liquid feed for breeding, the control of its ratio and feeding amount is particularly important. The ratio and feeding amount of liquid feed are key factors that directly affect the growth of pigs.

[0003] Traditional feeding methods rely on manual operation, but traditional manual feeding methods are not convenient for controlling the proportion and feeding amount of liquid feed, so the accuracy of the feeding amount of liquid feed is poor, and the difference in consumption between pigs is also large. In order to control the precise amount of liquid feed consumed by each pig, large-scale farms usually feed pigs one by one. However, since the protein sources such as soybean meal, fish meal and meat and bone meal in liquid feed are heavy, the heavier components of liquid feed will enter the feeding trough first in the early stage of discharging, which will lead to different proportions of liquid feed components consumed by pigs that eat first and then, so the existing feeding method cannot accurately control the proportion and feeding amount of liquid feed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a precise feeding device and method for liquid feed farming, which solves the problem that the existing farming method cannot accurately control the feeding amount of liquid feed.

[0005] In the first aspect, in order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: A precise feeding device for liquid feed breeding comprises a feed tank, a water tank, a stirring tank, a self-priming pump, a weighing adjustment mechanism and a feeding mechanism; the feed tank and the water tank are connected to the stirring tank through a feed pipe and a water pipe respectively, and a feeding solenoid valve is provided on the feed pipe; a water outlet solenoid valve is provided on the water pipe; the stirring tank is connected to a feeding end of the weighing adjustment mechanism through a conveying pipeline, and a self-priming pump is provided on the conveying pipeline; the feeding mechanism is connected to the discharge end of the weighing adjustment mechanism.

[0006] In this scheme, the feed and tap water in the feed tank and the water tank enter the stirring tank through the feed pipe and the water pipe respectively for stirring and mixing. After mixing, they are weighed by the weighing adjustment mechanism, and then quantitatively sent to the feeding mechanism for feeding to ensure that the feeding amount is equal each time; the stirring action of the stirring tank mixes the feed and the tap water, minimizes the difference in the ratio of the liquid feeds sent out successively, and prevents uneven distribution of nutrients in the liquid feed consumed by the pigs that eat later.

[0007] Furthermore, the weighing and adjusting mechanism comprises a box body, a feed box is arranged in the box body, openings are arranged on the tops of the box body and the feed box, and the discharge end of the conveying pipeline extends into the feed box through the opening; two sliders are respectively connected to the two sides of the feed box, and the two sliders are respectively slidably arranged on two guide rods, and the two guide rods are fixed to the bottom of the box body; a buffer assembly is connected to the bottom of the feed box, and a weighing sensor is arranged between the buffer assembly and the box body; The inner wall of the feed box is connected with a tension sensor, and the force measuring end of the tension sensor is connected with a buoyancy ball through a rope; A discharging pipe is connected to the bottom of the feed box, and a discharging solenoid valve is arranged on the discharging pipe.

[0008] In this solution, after the liquid feed in the feed tank enters the feed box in batches, the weighing sensor obtains its weight to ensure that the amount of feed supplied to each pig meets the feeding requirements; the tension sensor can detect the buoyancy applied by the liquid feed to the buoyancy ball, and the buoyancy can reflect whether the ratio of the liquid feed in the feed box meets the requirements, so as to facilitate the readjustment of the ratio of the liquid feed in the feed tank to ensure that the nutritional components in the liquid feed consumed by the subsequent pigs meet the feeding requirements.

[0009] Furthermore, the buffer assembly includes a buffer cylinder, which is fixed to the bottom of the feed box by bolts; a load-bearing rod is movably connected inside the buffer cylinder, and the bottom of the load-bearing rod is supported on the weighing sensor; an expansion ring is provided on the load-bearing rod, and a buffer spring is provided between the expansion ring and the buffer cylinder.

[0010] In this solution, when liquid feed is fed into the feed box, the liquid level of the liquid feed inside the feed box gradually rises, its weight gradually increases, and the force acting on the buffer spring also gradually increases; the height of the feed box slowly decreases, causing the buffer spring to slowly contract; the buffer spring can buffer the impact of the falling liquid feed on the feed box, thereby avoiding sudden changes in the weight detected by the weighing sensor due to the impact.

[0011] Furthermore, the feeding mechanism includes a pig house, which is divided into a feeding area and a waiting area by a partition; the feeding area and the waiting area are connected by a feeding channel; an entrance and an exit are provided in the feeding channel; a feeding trough is provided between the entrance and the exit; and the discharge port of the discharge pipe is located directly above the feeding trough.

[0012] In this solution, the entrance door is opened when the pigs in the waiting area are eating, and the pigs enter the feeding channel one by one to eat; after eating, the door is opened, and the pigs that have finished eating enter the eating area; this design is convenient for eating, and can distinguish between pigs that have eaten and those that have not eaten, which is convenient for breeding.

[0013] Furthermore, the door shaft of the entrance door is rotatably arranged on the wall of the pig house; the bottom of the door shaft of the entrance door is connected with a first pulley assembly, and the door shaft of the entrance door is transmission-connected with a first bevel gear set through the first pulley assembly; the first bevel gear set is transmission-connected with a first motor; The door shaft for exiting is rotatably arranged on the wall of the pig house; the bottom of the door shaft for exiting is connected with a second belt pulley assembly, and the door shaft for exiting is transmission-connected with a second bevel gear set through the second belt pulley assembly; the second bevel gear set is transmission-connected with a second motor; A slide rail is provided at the bottom of the pig house, which is laid through the feeding hole on the wall of the pig house, and the feeding trough is slidably set on the slide rail; a screw nut is connected to the bottom of the feeding trough, a ball screw is threadedly connected to the screw nut, and the ball screw is connected to the second motor through the third pulley assembly.

[0014] In this solution, the first motor drives the first bevel gear group to rotate, the first bevel gear group drives the first pulley assembly to rotate, and the first pulley assembly drives the entrance door to open or close; the second motor drives the second bevel gear group to rotate, the second bevel gear group drives the second pulley assembly to rotate, and the second pulley assembly drives the exit door to open or close; and while the exit door is opened or closed, the second motor also drives the ball screw to rotate through the third pulley assembly, thereby driving the feeding trough to slide out or slide into the feeding hole, preventing the feeding trough from occupying the space of the feeding channel when the pigs have finished eating and leave the narrow feeding channel, thereby ensuring that the pigs can only pass through the feeding channel smoothly.

[0015] Furthermore, two rectangular door frames are opened on the wall of the pig house, and a number of equally distributed fixed railings are connected to the side walls of one side of the two rectangular door frames; the door axis for entering the door and the door axis for exiting the door are respectively rotatably connected in the two rectangular door frames; the door axis for entering the door and the door axis for exiting the door are both connected to a number of equally distributed movable railings; a number of fixed railings and a number of movable railings are arranged alternately.

[0016] In this solution, when the entrance door is opened, the movable railing of the entrance door is embedded between the fixed railings, which is equivalent to the door body of the entrance door being completely embedded in the rectangular door frame, without occupying the space of the feeding channel, thereby ensuring the width of the feeding channel.

[0017] Furthermore, the mixing tank includes a tank body, with two feed ports on the top of the tank body, and a feed pipe and a water pipe are respectively connected to the two feed ports; a stirring paddle is provided in the tank body, and the stirring paddle is connected to a stirring motor on the top of the tank body; an electric heating ring is circumferentially arranged around the tank body, and a layer of heat-insulating material is wrapped around the electric heating ring.

[0018] In this solution, the stirring paddle stirs the liquid feed to prevent it from settling; the electric heating ring heats the liquid feed.

[0019] In a second aspect, the present invention provides a precise feeding method for liquid feed aquaculture based on the precise feeding device for liquid feed aquaculture provided in the first aspect, comprising the following steps: S1: Open the feed solenoid valve and the water outlet solenoid valve to deliver feed and tap water to the mixing tank; start the mixing motor to mix the feed and tap water to obtain liquid feed; S2: The liquid feed in the mixing tank is sent to the weighing adjustment mechanism for weighing measurement through a self-priming pump; S3: Open the discharge solenoid valve to send the liquid feed in the weighing adjustment mechanism into the feeding trough.

[0020] In this solution, the liquid feed in the mixing tank is fed into the weighing adjustment mechanism in batches for weighing and then fed into the feeding trough for feeding. The amount of each feeding is controllable, so that accurate feeding of the feed is achieved.

[0021] Furthermore, S2 includes: S201: Turn on the self-priming pump to send the liquid feed in the mixing tank into the feed box, and the weighing sensor weighs the weight of the liquid feed in the feed box; S202: The tension sensor detects the actual buoyancy generated by the liquid feed in the feed box on the buoyancy ball, and compares the actual buoyancy with the standard buoyancy generated by the liquid feed on the buoyancy ball at a standard density; If the actual buoyancy is greater than the standard buoyancy, the actual density of the liquid feed in the feed box is greater than the standard density, and the water outlet solenoid valve is opened to add tap water to the mixing tank; If the actual buoyancy is less than the standard buoyancy, the actual density of the liquid feed in the feed box is less than the standard density. The discharge solenoid valve is opened to add feed to the mixing tank.

[0022] In this scheme, the density of the liquid feed at the standard ratio is used as the standard density. By comparing the standard buoyancy generated by the liquid feed on the buoyancy ball under the standard density and the actual buoyancy detected by the tension sensor, it is possible to determine whether the nutrient content in the liquid feed meets the requirements, and then the liquid feed in the mixing tank is readjusted to ensure that the nutrient content in the liquid feed consumed by the pigs that eat successively meets the feeding requirements.

[0023] Furthermore, S3 includes: S301: Start the first motor, the first motor drives the door to open, and the first pig enters the feeding channel to prepare for feeding; S302: Open the discharge solenoid valve, and the liquid feed in the feed box enters the feeding trough through the discharge pipe for the first pig to eat; S303: After the first pig finishes eating, the second motor is started, and the second motor drives the feeding trough to slide out of the feeding hole along the slide rail, and drives the door to open at the same time; the first pig leaves the feeding channel.

[0024] The beneficial effects of the present invention are: In the precise feeding device for liquid feed breeding provided by the present invention, after the liquid feed in the feed tank enters the feed box in batches, the liquid feed in the feed box is weighed by a weighing sensor; it is ensured that the amount of feed supplied to each pig meets the feeding requirements; the buoyancy applied by the liquid feed to the buoyancy ball is detected by a tension sensor, and the buoyancy can reflect whether the ratio of the liquid feed in the feed box meets the requirements, and the ratio of the liquid feed in the feed tank is readjusted according to the result, so as to ensure that the nutrients in the liquid feed consumed by the subsequent pigs meet the feeding requirements. While the second motor drives the door to open or close, it also drives the feed trough to slide out or slide in from the feed hole along the slide rail through the ball screw, so as to avoid the feed trough occupying the space of the feeding channel when the pigs that have finished eating leave the narrow feeding channel, so as to ensure that the pigs can only pass through the feeding channel smoothly. A movable railing is designed in the rectangular door frame as an entrance door, and when the door is opened, the door body is fully embedded in the rectangular door frame to ensure the width of the feeding channel.

[0025] In the precise feeding method for liquid feed farming provided by the present invention, by comparing the standard buoyancy generated by the liquid feed on the buoyancy ball under the standard density and the actual buoyancy detected by the tension sensor, it can be judged whether the nutrient content in the liquid feed meets the requirements, and then the liquid feed in the mixing tank is readjusted to ensure that the nutrient content in the liquid feed consumed by the pigs that eat successively meets the feeding requirements; avoiding the problem of insufficient nutrients in the subsequent liquid feed due to some heavier components in the liquid feed being discharged first during the discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a precise feeding device for liquid feed farming according to the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the weighing adjustment mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the buffer assembly of the present invention; Figure 4 It is a structural schematic diagram of the feeding mechanism and the weighing adjustment mechanism of the present invention; Figure 5 It is a structural schematic diagram of the feeding mechanism of the present invention; Figure 6 It is a structural schematic diagram of the feeding mechanism of the present invention from another perspective.

[0027] Reference numerals: 1. Feed tank; 11. Feeding solenoid valve; 2. Water tank; 21. Water outlet solenoid valve; 3. Mixing tank; 31. Tank body; 32. Mixing paddle; 33. Electric heating coil; 4. Self-priming pump; 5. Weighing adjustment mechanism; 51. Box body; 52. Feed tank; 53. Buffer assembly; 531. Load-bearing rod; 532. Buffer cylinder; 533. Buffer spring; 54. Weighing sensor; 55. Tension sensor; 56. Buoyancy ball; 57. Guide rod; 58. Feeding solenoid valve ;6. Feeding mechanism;61. Feeding trough;611. Slide rail;612. Ball screw;62. Eating area;63. Waiting area;64. Feeding passage;65. Entrance;651. First pulley assembly;652. First bevel gear set;653. First motor;66. Exit;661. Second pulley assembly;662. Second bevel gear set;663. Second motor;664. Third pulley assembly;67. Fixed railing;68. Movable railing; DETAILED DESCRIPTION The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The specific implementation of the present invention is described below to facilitate the understanding of the present invention by those skilled in the art, but it should be clear that the present invention is not limited to the scope of the specific implementation. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

[0028] Example 1 Weighing is performed to ensure that the amount of feed is equal each time; the ratio of liquid feed can also be adjusted in real time to avoid uneven distribution of nutrients in the liquid feed consumed by the pigs that eat later; specifically, it includes: Feed tank 1, water tank 2, mixing tank 3, self-priming pump 4, weighing adjustment mechanism 5 and feeding mechanism 6; Among them, the feed tank 1 and the water tank 2 are connected to the stirring tank 3 through a feed pipe and a water pipe respectively; a feed discharge solenoid valve 11 is provided on the feed pipe; a water outlet solenoid valve 21 is provided on the water pipe, and the feed and tap water in the feed tank 1 and the water tank 2 enter the stirring tank 3 through the feed pipe and the water pipe respectively for stirring and mixing; the stirring tank 3 is connected to the feed end of the weighing and adjusting mechanism 5 through a conveying pipeline, and a self-priming pump 4 is provided on the conveying pipeline; the discharge end of the weighing and adjusting mechanism 5 is connected to the feeding mechanism 6.

[0029] like Figure 2As shown, the weighing and adjusting mechanism 5 includes a box body 51, a feed box 52, a weighing sensor 54 and a tension sensor 55; a feed box 52 is arranged in the box body 51, and openings are arranged on the tops of the box body 51 and the feed box 52, and the discharge end of the conveying pipeline extends into the feed box 52 through the opening; two sliders are respectively connected to the two sides of the feed box 52, and the two sliders are respectively slidably set on two guide rods 57, and the two guide rods 57 are fixed to the bottom of the box body 51; a buffer assembly 53 is connected to the bottom of the feed box 52, and a weighing sensor 54 is arranged between the buffer assembly 53 and the box body 51; after the liquid feed in the feed tank 1 enters the feed box 52 in batches, the weighing sensor 54 obtains its weight. A tension sensor 55 is connected to the inner wall of the feed box 52, and the force measuring end of the tension sensor 55 is connected to a buoyancy ball 56 through a rope; the tension sensor 55 can detect the buoyancy applied by the liquid feed to the buoyancy ball 56, and the buoyancy can reflect whether the ratio of the liquid feed in the feed box 52 meets the requirements, so as to readjust the ratio of the liquid feed in the feed tank 1 to ensure that the nutritional components of the liquid feed consumed by the subsequent pigs meet the feeding requirements. A discharge pipe is connected to the bottom of the feed box 52, and a discharge solenoid valve 58 is provided on the discharge pipe.

[0030] In this embodiment, the weighing sensor 54 and the tension sensor 55 may also be connected to the controller, and the controller receives the data detected by the weighing sensor 54 and the tension sensor 55 .

[0031] like Figure 3 As shown, the buffer assembly 53 includes a buffer cylinder 532, a load-bearing rod 531 and a buffer spring 533; the buffer cylinder 532 is fixed to the bottom of the feed box 52 by bolts; the load-bearing rod 531 is movably connected in the buffer cylinder 532, and the bottom of the load-bearing rod 531 is supported on the weighing sensor 54; the load-bearing rod 531 is provided with an expansion ring, and a buffer spring 533 is provided between the expansion ring and the buffer cylinder 532. When the liquid feed is fed into the feed box 52, the liquid level of the liquid feed inside the feed box 52 gradually rises, and its weight also gradually increases, and the force acting on the buffer spring 533 also gradually increases; the height of the feed box 52 slowly decreases, so that the buffer spring 533 slowly contracts; the buffer spring 533 can buffer the impact of the liquid feed on the feed box 52 during its fall, and avoid the sudden change of the weight detected by the weighing sensor 54 due to the impact.

[0032] like Figure 4 and Figure 5As shown, the feeding mechanism 6 includes a pig house, which is divided into a feeding area 62 and a waiting area 63 by a partition; the feeding area 62 and the waiting area 63 are connected by a feeding channel 64; an entrance door 65 and an exit door 66 are provided in the feeding channel 64; a feeding trough 61 is provided between the entrance door 65 and the exit door 66; the discharge port of the discharge pipe is located directly above the feeding trough 61; when the pigs in the waiting area 63 eat, the entrance door 65 is opened, and the pigs enter the feeding channel 64 one by one to eat; after eating, the exit door 66 is opened, and the pigs that have finished eating enter the feeding area 62; this design is convenient for eating, and can distinguish between pigs that have eaten and those that have not eaten, which is convenient for breeding.

[0033] The door shaft of the entrance door 65 is rotatably arranged on the wall of the pig house; the bottom of the door shaft of the entrance door 65 is connected with a first pulley assembly 651, and the door shaft of the entrance door 65 is transmission-connected to the first bevel gear set 652 through the first pulley assembly 651; the first bevel gear set 652 is transmission-connected to the first motor 653; the first motor 653 drives the first bevel gear set 652 to rotate, and the first bevel gear set 652 drives the first pulley assembly 651 to rotate, and the first pulley assembly 651 drives the entrance door 65 to open or close.

[0034] The door shaft of the door 66 is rotatably set on the wall of the pig house; the bottom of the door shaft of the door 66 is connected with the second pulley assembly 661, and the door shaft of the door 66 is transmission connected with the second bevel gear set 662 through the second pulley assembly 661; the second bevel gear set 662 is transmission connected with the second motor 663; a slide rail 611 is provided at the bottom of the pig house, and the slide rail 611 is laid through the feeding hole on the wall of the pig house, and the feeding trough 61 is slidably set on the slide rail 611; the bottom of the feeding trough 61 is connected with a screw nut, and a ball screw 612 is threadedly connected to the screw nut, and the ball screw 612 is transmission connected with the second motor 663 through the third pulley assembly 664. The second motor 663 drives the second bevel gear set 662 to rotate, and the second bevel gear set 662 drives the second pulley assembly 661 to rotate, and the second pulley assembly 661 drives the door 66 to open or close; and when the door 66 is opened or closed, the second motor 663 also drives the ball screw 612 to rotate through the third pulley assembly 664, thereby driving the feeding trough 61 to slide out or slide into the feeding hole, preventing the feeding trough 61 from occupying the space of the feeding channel when the pigs leave the narrow feeding channel after eating, thereby ensuring that the pigs can only pass through the feeding channel smoothly.

[0035] In actual implementation, a groove can be opened in the ground, the first pulley assembly 651 and the second pulley assembly 661 can be arranged in the groove body, and a cover plate can be designed on the top of the groove body.

[0036] In this embodiment, the first pulley assembly 651, the second pulley assembly 661, the first bevel gear set 652 and the second bevel gear set 662 are all transmission mechanisms commonly used in the prior art and are not described in detail here; the first bevel gear set 652 and the second bevel gear set 662 can be replaced by a bevel gear set.

[0037] like Figure 6 As shown, there are two rectangular door frames on the wall of the pig house, and a number of equally spaced fixed railings 67 are connected to the side walls of the two rectangular door frames; the door shafts of the entrance door 65 and the door shafts of the exit door 66 are respectively rotatably connected to the two rectangular door frames; the door shafts of the entrance door 65 and the door shafts of the exit door 66 are connected to a number of equally spaced movable railings 68; a number of fixed railings 67 and a number of movable railings 68 are arranged alternately. When the entrance door 65 is opened, the movable railings 68 of the entrance door 65 are embedded between the fixed railings 67, which is equivalent to the door body of the entrance door 65 being completely embedded in the rectangular door frame, not occupying the space of the feeding channel, and ensuring the width of the feeding channel. The design concept of closing the door is the same as that of the entrance door 65, both of which do not occupy the space of the feeding channel.

[0038] The mixing tank 3 includes a tank body 31, and two feed ports are arranged on the top of the tank body 31, and a feed pipe and a water pipe are respectively connected to the two feed ports; a stirring paddle 32 is arranged in the tank body 31, and the stirring paddle 32 is connected to the stirring motor on the top of the tank body 31; the motor drives the stirring paddle 32 to stir the liquid feed to prevent it from settling; an electric heating coil 33 is arranged circumferentially around the tank body 31, and a layer of insulation material is wrapped around the electric heating coil 33; the electric heating coil 33 heats the liquid feed; the insulation material can be the existing tank body 31 insulation cover.

[0039] In this embodiment, the weighing sensor 54 adopts the spoke-type weighing sensor 54DJLF-105; the tension sensor 55 adopts the VS25B small-size push-pull force sensor 0-2000N waterproof type tension and compression bidirectional force measurement.

[0040] Example 2 Embodiment Based on the precise feeding device for liquid feed farming provided in Embodiment 1, a precise feeding method for liquid feed farming is provided, comprising the following steps: S1: Open the feed solenoid valve 11 and the water outlet solenoid valve 21 to deliver feed and tap water to the mixing tank 3; start the mixing motor to mix the feed and tap water to obtain liquid feed.

[0041] S2: The liquid feed in the mixing tank 3 is sent to the weighing adjustment mechanism 5 by the self-priming pump 4 for weighing measurement; specifically including: S201: Turn on the self-priming pump 4 to deliver the liquid feed in the mixing tank 3 into the feed box 52, and the weighing sensor 54 weighs the weight of the liquid feed in the feed box 52; S202: The tension sensor 55 detects the actual buoyancy generated by the liquid feed in the feed box 52 on the buoyancy ball 56, and compares the actual buoyancy with the standard buoyancy generated by the liquid feed on the buoyancy ball 56 under the standard density; if the actual buoyancy is greater than the standard buoyancy, the actual density of the liquid feed in the feed box 52 is greater than the standard density, and the water outlet solenoid valve 21 is opened to add tap water to the mixing tank 3; if the actual buoyancy is less than the standard buoyancy, the actual density of the liquid feed in the feed box 52 is less than the standard density, and the discharge solenoid valve 11 is opened to add feed to the mixing tank 3.

[0042] S3: Open the discharge solenoid valve 58 to send the liquid feed in the weighing adjustment mechanism 5 into the feeding trough 61; specifically including: S301: Start the first motor 653, the first motor 653 drives the door 65 to open, and the first pig enters the feeding channel 64 to prepare for feeding; S302: Open the discharge solenoid valve 58, and the liquid feed in the feed box 52 enters the feeding trough 61 through the discharge pipe to be eaten by the first pig; S303: After the first pig has finished eating, the second motor 663 is started, and the second motor 663 drives the feeding trough 61 to slide out of the feeding hole along the slide rail 611 and drives the door 66 to open; the first pig leaves the feeding channel 64.

[0043] In this embodiment, the density of the liquid feed at the standard ratio is used as the standard density. By comparing the standard buoyancy generated by the liquid feed on the buoyancy ball 56 under the standard density and the actual buoyancy detected by the tension sensor 55, it can be determined whether the nutrient content in the liquid feed meets the requirements, and then the liquid feed in the mixing tank 3 is readjusted to ensure that the nutrient content in the liquid feed consumed by the pigs that eat successively meets the feeding requirements. The liquid feed with the standard ratio can be prepared separately and transferred to the feed box 52 after preparation; the liquid feed mixed with the feed that meets the ratio relationship and tap water added to the mixing tank 3 for the first time can also be used as the liquid feed with the standard ratio, which can be directly sent to the feed box 52 and its standard buoyancy on the buoyancy ball can be detected.

[0044] Those skilled in the art will appreciate that the embodiments herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations that do not deviate from the essence of the present invention based on the technical revelations disclosed by the present invention, and these variations and combinations are still within the protection scope of the invention.

Claims

1. A precise feeding device for liquid feed farming, characterized in that: The invention comprises a feed tank (1), a water tank (2), a stirring tank (3), a self-priming pump (4), a weighing adjustment mechanism (5) and a feeding mechanism (6); the feed tank (1) and the water tank (2) are connected to the stirring tank (3) via a feed pipe and a water pipe respectively, the feed pipe is provided with a feeding electromagnetic valve (11); the water pipe is provided with a water outlet electromagnetic valve (21); the stirring tank (3) is connected to the feeding end of the weighing adjustment mechanism (5) via a conveying pipeline, the conveying pipeline is provided with the self-priming pump (4); the discharge end of the weighing adjustment mechanism (5) is connected to the feeding mechanism (6).

2. The precise feeding device for liquid feed farming according to claim 1, characterized in that: The weighing adjustment mechanism (5) comprises a box body (51), a feed box (52) is arranged in the box body (51), the tops of the box body (51) and the feed box (52) are both provided with openings, and the discharge end of the conveying pipeline extends into the feed box (52) through the openings; two sliders are respectively connected to the two sides of the feed box (52), the two sliders are respectively slidably arranged on two guide rods (57), and the two guide rods (57) are fixed to the bottom of the box body (51); a buffer assembly (53) is connected to the bottom of the feed box (52), and a weighing sensor (54) is provided between the buffer assembly (53) and the box body (51); The inner wall of the feed box (52) is connected to a tension sensor (55), and the force measuring end of the tension sensor (55) is connected to a buoyancy ball (56) via a rope; The bottom of the feed box (52) is connected to a discharge pipe, and a discharge solenoid valve (58) is provided on the discharge pipe.

3. The precise feeding device for liquid feed farming according to claim 2, characterized in that: The buffer assembly (53) comprises a buffer cylinder (532), wherein the buffer cylinder (532) is fixed to the bottom of the feed box (52) by means of bolts; a load-bearing rod (531) is movably connected inside the buffer cylinder (532), and the bottom of the load-bearing rod (531) is supported on the weighing sensor (54); an expansion ring is provided on the load-bearing rod (531), and a buffer spring (533) is provided between the expansion ring and the buffer cylinder (532).

4. The precise feeding device for liquid feed farming according to claim 2, characterized in that: The feeding mechanism (6) comprises a pig house, wherein the pig house is divided into a feeding area (62) and a waiting area (63) by a partition; the feeding area (62) and the waiting area (63) are connected by a feeding channel (64); an entrance door (65) and an exit door (66) are provided in the feeding channel (64); a feeding trough (61) is provided between the entrance door (65) and the exit door (66); and the discharge port of the discharge pipe is located directly above the feeding trough (61).

5. The precise feeding device for liquid feed farming according to claim 4, characterized in that: The door shaft of the entrance door (65) is rotatably arranged on the wall of the pig house; the bottom of the door shaft of the entrance door (65) is connected to a first belt pulley assembly (651), and the door shaft of the entrance door (65) is transmission-connected to a first bevel gear assembly (652) via the first belt pulley assembly (651); the first bevel gear assembly (652) is transmission-connected to a first motor (653); The door shaft of the door (66) is rotatably arranged on the wall of the pig house; the bottom of the door shaft of the door (66) is connected to a second belt pulley assembly (661), and the door shaft of the door (66) is transmission-connected to a second bevel gear assembly (662) via the second belt pulley assembly (661); the second bevel gear assembly (662) is transmission-connected to a second motor (663); A slide rail (611) is provided at the bottom of the pig house, and the slide rail (611) is laid through the feeding hole on the wall of the pig house. The feeding trough (61) is slidably arranged on the slide rail (611); a screw nut is connected to the bottom of the feeding trough (61), and a ball screw (612) is threadedly connected to the screw nut. The ball screw (612) is transmission-connected to the second motor (663) via a third pulley assembly (664).

6. The precise feeding device for liquid feed farming according to claim 5, characterized in that: Two rectangular door frames are provided on the wall of the pig house, and a plurality of equally spaced fixed railings (67) are connected to the side walls of one side of the two rectangular door frames; the door axis of the entrance door (65) and the door axis of the exit door (66) are respectively rotatably connected to the two rectangular door frames; the door axis of the entrance door (65) and the door axis of the exit door (66) are connected to a plurality of equally spaced movable railings (68); and a plurality of the fixed railings (67) and a plurality of the movable railings (68) are arranged in a staggered manner.

7. The precise feeding device for liquid feed farming according to claim 4, characterized in that: The stirring tank (3) comprises a tank body (31), the top of the tank body (31) is provided with two feed inlets, the feed pipe and the water pipe are respectively connected to the two feed inlets; a stirring paddle (32) is provided in the tank body (31), the stirring paddle (32) is connected to a stirring motor at the top of the tank body (31); an electric heating ring (33) is circumferentially arranged around the tank body (31), and the electric heating ring (33) is wrapped with a layer of heat-insulating material.

8. A feeding method using the precision feeding device for liquid feed farming according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Opening the feed discharge solenoid valve (11) and the water discharge solenoid valve (21) to deliver feed and tap water into the mixing tank (3); starting the mixing motor to mix the feed and tap water to obtain liquid feed; S2: The liquid feed in the mixing tank (3) is sent to the weighing adjustment mechanism (5) for weighing measurement via the self-priming pump (4); S3: Open the discharge solenoid valve (58) to send the liquid feed in the weighing adjustment mechanism (5) into the feeding trough (61).

9. The feeding method of the precision feeding device for liquid feed farming according to claim 8, characterized in that: The S2 includes: S201: starting the self-priming pump to deliver the liquid feed in the mixing tank (3) into the feed box (52), and using the weighing sensor (54) to weigh the weight of the liquid feed in the feed box (52); S202: The tension sensor (55) detects the actual buoyancy generated by the liquid feed in the feed box (52) on the buoyancy ball (56), and compares the actual buoyancy with the standard buoyancy generated by the liquid feed at a standard density on the buoyancy ball (56); If the actual buoyancy is greater than the standard buoyancy, the actual density of the liquid feed in the feed box (52) is greater than the standard density, and the water outlet solenoid valve (21) is opened to add tap water to the mixing tank (3); If the actual buoyancy is less than the standard buoyancy, the actual density of the liquid feed in the feed box (52) is less than the standard density, and the discharge solenoid valve (11) is opened to add feed to the mixing tank (3).

10. The feeding method of the precision feeding device for liquid feed farming according to claim 8, characterized in that: The S3 includes: S301: starting the first motor (653), the first motor (653) drives the entrance door (65) to open, and the first pig enters the feeding channel (64) to prepare for eating; S302: Opening the discharge solenoid valve (58), the liquid feed in the feed box (52) enters the feeding trough (61) through the discharge pipe, and is fed to the first pig; S303: After the first pig has finished eating, the second motor (663) is started, and the second motor (663) drives the feeding trough (61) to slide out of the feeding hole along the slide rail (611), and at the same time drives the door (66) to open; the first pig leaves the feeding channel (64).

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