An intelligent feed sampling device for pig farm feed delivery system

Abstract

The present invention relates to the technical field of feed sampling, and discloses an intelligent feed sampling device for a feed conveying system of a pig farm, comprising a sampler fixedly mounted on the pipeline surface of a tube chain conveyor, wherein a sample storage component and a feeding component are arranged inside the sampler, wherein the sample storage component comprises a sampling tube, wherein the sampling tube is movably mounted inside the sampler, wherein a movable plug is slidably mounted inside the sampling tube, wherein the feeding component comprises a telescopic column, wherein a feeding cavity is provided inside the sampler, and the feeding cavity is connected to the pipeline cavity of the tube chain conveyor through a conveying window. The sampling device proposed by the present invention has a sampler attached to the pipeline surface of the tube chain conveyor, wherein the telescopic column is driven to reciprocate through the movement of a feed tray to push the material into the sampling tube, wherein the design increases the number of sampling times, and at the same time has the function of controlling the sampling amount at a single point, thereby making the sampled sample more uniform and comprehensive, and the detection result thereof can accurately reflect the real situation of the feed, and meet the use requirements of multi-point sampling.

Description

Technical Field

[0001] The invention relates to the technical field of feed sampling, and in particular to intelligent feed sampling equipment for a feed conveying system in a pig farm. Background Art

[0002] During the storage process, pig farm feed is prone to mold and produce a large number of bacteria, which will affect the feeding of animals. Therefore, it is necessary to regularly sample and test the feed during storage and feeding.

[0003] In order to achieve multi-point sampling, the prior art patent document with the publication number CN110455583B discloses a multi-point sampling device for a feed oil detection system. However, the device is not suitable for sampling solid and powdery materials in pig feed.

[0004] The patent document with announcement number CN205861396U in the prior art discloses an automatic sampling device for a feed dispenser chute, which uses a cylinder to drive a gate for automatic chute sampling. The sample automatically enters the collection container through the funnel part and the straight pipe part, and then is transported to the destination by an automatic pulley, which greatly saves manpower, improves the degree of automation, and eliminates safety hazards. However, the device is inconvenient to control the single sampling volume and cannot meet the requirements of multi-point uniform sampling.

[0005] During the sampling process, there need to be as many sampling points as possible, and the sampling volume of each sampling point should be controlled within an appropriate range, so that the test results can accurately reflect the actual situation of the feed. The total amount of feed delivered by the breeding farm each time is different, and the single-point sampling volume needs to be adjusted as needed. The existing feed sampling device has the problem of the sampling times of multi-point sampling and the difficulty in adjusting the single-point sampling volume, which leads to inconvenience in use and needs to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the existing feed sampling devices in the prior art, that the sampling times of multi-point sampling and the single-point sampling amount are difficult to adjust, and to propose an intelligent feed sampling device for a pig farm feed conveying system.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an intelligent feed sampling device for a feed conveying system in a pig farm, comprising a sampler fixedly mounted on the pipe surface of a pipe chain conveyor, wherein a sample storage component and a feeding component are arranged inside the sampler.

[0008] The sample storage component comprises a sampling tube, which is movably installed in the sampler, and a movable plug is slidably installed in the sampling tube.

[0009] The feeding assembly includes a telescopic column. A feeding cavity is provided inside the sampler. The feeding cavity is connected to the inner cavity of the pipe of the tube chain conveyor through a conveying window. The telescopic column is slidably installed in the feeding cavity. The material tray in the tube chain conveyor provides power for the telescopic column, so that the telescopic column moves back and forth to push the material in the feeding cavity into the sampling tube. By changing the operating speed of the tube chain conveyor, the function of multi-point sampling with adjustable single-point sampling volume is realized.

[0010] Preferably, an induction ring is fixedly installed on the surface of the sampler, the induction ring is wrapped around the surface of the pipe, an induction coil is embedded inside the induction ring, a magnetic rod is fixedly installed on the end of the telescopic column, the magnetic rod is slidably connected to the sampler, and one end of the magnetic rod away from the telescopic column extends to the outside of the sampler, a positioning ring is threadedly installed on the end of the magnetic rod away from the telescopic column, an excitation coil is embedded inside the sampler, and the induction coil is electrically connected to the excitation coil.

[0011] There are two types of trays in the pipe chain conveyor, namely the first tray and the second tray. Magnets are embedded on the surfaces of the first tray and the second tray respectively. The magnets on the first tray and the second tray are opposite in magnetic pole to one end of the magnet close to the inner wall of the pipe. By changing the running speed of the pipe chain conveyor, the frequency of the reciprocating action of the telescopic column can be adjusted, that is, the material can be controlled by

[0012] The speed of the plate movement adjusts the effect of the single point sampling volume.

[0013] Preferably, a first feed port connected to the inner cavity of the pipe is provided on the pipe surface of the pipe chain conveyor, and a second feed port connected to the feed cavity is provided on the upper surface of the sampler. The first feed port and the second feed port are aligned to form the conveying window. When the telescopic column moves back and forth, the conveying window is opened and closed.

[0014] Preferably, a groove is provided at one end of the telescopic column close to the sampling tube, a return spring is arranged inside the feed chamber, the end of the return spring presses against the side of the telescopic column away from the groove, an adjusting knob is threadedly installed at one end of the movable plug away from the telescopic column, a conical disk is fixedly installed on the surface of the adjusting knob, an annular groove is provided on the surface of the movable plug, and a sealing ring is sleeved in the annular groove, a plurality of transmission rods are radially slidably installed inside the movable plug, one end of the transmission rod presses against the inner annular surface of the sealing ring, and the other end of the transmission rod presses against the conical surface of the conical disk.

[0015] A pipe rack is rotatably installed inside the sampler, and a servo motor is fixedly installed at the end of the sampler. The servo motor drives the pipe rack to rotate. A plurality of slots are provided on the surface of the pipe rack, and the sampling tubes are clamped and installed in the slots. An installation window for taking and placing the sampling tube is provided on the lower surface of the sampler. A contact sensor is fixedly installed on the surface of the sampler, and the sensing head of the contact sensor faces the port of the sampling tube. The operating speed of the tube chain conveyor can be changed, and the frequency of the reciprocating motion of the telescopic column can be adjusted. According to the different materials being conveyed, the effect of adjusting the single-point sampling amount by controlling the moving speed of the material tray can be achieved.

[0016] The present invention has the following beneficial effects:

[0017] 1. The sampling device proposed in the present invention has a sampler attached to the pipe surface of the pipe chain conveyor. The telescopic column is driven to reciprocate by the movement of the feed tray to push the material into the sampling tube. This design increases the number of sampling times and has the function of controlling the sampling amount at a single point, making the sampling samples more uniform and comprehensive. The test results can accurately reflect the actual situation of the feed and meet the use requirements of multi-point sampling.

[0018] 2. The sampling equipment proposed in the present invention is provided with an induction ring on the pipe surface of the pipe chain conveyor, and magnets with opposite magnetic poles are provided on the surfaces of the first material tray and the second material tray. The induction coil cuts the magnetic field in opposite directions, and provides the excitation coil with an electric current of alternating directions. The electromagnetic force of the excitation coil drives the telescopic column to reciprocate. The amplitude of the reciprocating motion of the telescopic column determines the amount of single-point sampling. Since the amplitude of the reciprocating motion of the telescopic column is positively correlated with the moving speed of the material tray, the effect of adjusting the single-point sampling amount is achieved by controlling the moving speed of the material tray.

[0019] 3. By setting an adjustment knob at the end of the movable plug, the sliding resistance (Fresistance) of the movable plug can be adjusted, and a reset spring (Fspring) is set at the end of the telescopic column. When Fresistance>Fspring, whether the telescopic column can push the material into the sampling tube is determined by the electromagnetic force of the excitation coil. At this time, when the total amount of material conveyed is small or the material fluidity is poor, the moving speed of the material tray can be reduced to reduce the frequency of the reciprocating action of the telescopic column to ensure that enough material is pushed into the sampling tube. When the total amount of material conveyed is large or the material fluidity is strong, the moving speed of the material tray can be increased to increase the frequency of the reciprocating action of the telescopic column to ensure that the number of material pushes is sufficient until the sampling tube is filled. This design, under the condition of different conveying materials, uses the adjustment of the operating speed of the pipe chain conveyor to achieve the purpose of controllable sampling times and single-point sampling volume.

[0020] 4. As the tube chain conveyor runs at high speed, the reciprocating frequency of the telescopic column increases. The large and small materials transported in the tube chain conveyor, among which the small materials are more likely to enter the feeding cavity through the "conveying window", and then be pushed into the sampling tube, have the effect of selective sampling, and the samples of small materials are convenient for subsequent detection operations, and can prevent the feeding cavity from being blocked. When the material in the sampling tube is full, the movable plug is pushed to the end of the sampling tube and triggers the contact sensor, which is conducive to ending the sampling operation, or linking the servo motor to drive the tube rack to rotate, switch other sampling tubes to continue sampling, and provide conditions for automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the feed sampling device proposed by the present invention (I);

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the feed sampling device proposed by the present invention (II);

[0023] Figure 3 This is a partial front cross-sectional structural schematic diagram of the feed sampling device proposed by the present invention (I);

[0024] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at point A;

[0025] Figure 5 This is a partial front cross-sectional structural schematic diagram of the feed sampling device proposed by the present invention (II);

[0026] Figure 6 This is a partial front cross-sectional structural schematic diagram of the feed sampling device proposed by the present invention (III);

[0027] Figure 7 This is a schematic diagram of the front cross-sectional structure of the movable plug proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the pipe rack proposed in the present invention.

[0029] In the figure: 1 sampler, 2 sampling tube, 3 movable plug, 4 telescopic column, 5 feeding chamber, 6 induction ring, 7 induction coil, 8 magnetic rod, 9 excitation coil, 10 first material tray, 11 second material tray, 12 magnet, 13 first feeding port, 14 second feeding port, 15 groove, 16 return spring, 17 adjustment knob, 18 conical disk, 19 sealing ring, 20 transmission rod, 21 pipe rack, 22 servo motor, 23 installation window, 24 contact sensor, 25 pipeline, 26 traction chain. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Example 1

[0033] Reference Figure 1 , 3 , 4, 8, an intelligent feed sampling device for a feed conveying system in a pig farm, comprising a sampler 1 fixedly mounted on the surface of a pipe 25 of a tube chain conveyor, wherein a sample storage component and a feed supply component are arranged inside the sampler 1, wherein a feed tray and a traction chain 26 are arranged inside the pipe 25 of the tube chain conveyor, and a plurality of feed trays are connected in series by the traction chain 26. The tube chain conveyor is a continuous conveying equipment for conveying bulk materials such as powder, small particles and small blocks, and can be conveyed in a horizontal, inclined and vertical combination. The use of tube chain conveyors to transport feed in pig farms belongs to the prior art and will not be elaborated here.

[0034] Specifically, the sample storage assembly includes a sampling tube 2 , both ends of which are open, and the sampling tube 2 is movably installed in the sampler 1 , and a movable plug 3 is slidably installed in the sampling tube 2 .

[0035] The feeding assembly includes a telescopic column 4, a feeding chamber 5 is opened inside the sampler 1, and the feeding chamber 5 is connected with the inner cavity of the pipe 25 of the pipe chain conveyor through a conveying window. The telescopic column 4 is slidably installed in the feeding chamber 5, and a groove 15 is opened at one end of the telescopic column 4 close to the sampling tube 2. A magnetic rod 8 is fixedly installed at the end of the telescopic column 4, and the magnetic rod 8 is slidably connected to the sampler 1, and the end of the magnetic rod 8 away from the telescopic column 4 extends to the outside of the sampler 1, and a positioning ring is threadedly installed at the end of the magnetic rod 8 away from the telescopic column 4, and an excitation coil 9 is embedded in the sampler 1.

[0036] An induction ring 6 is fixedly mounted on the surface of the sampler 1 . The induction ring 6 wraps around the surface of the pipe 25 . An induction coil 7 is embedded inside the induction ring 6 . The induction coil 7 is electrically connected to the excitation coil 9 .

[0037] It should be noted that the surface of the pipe 25 of the pipe chain conveyor is provided with a first material delivery port 13 connected to the inner cavity of the pipe 25, and the upper surface of the sampler 1 is provided with a second material delivery port 14 connected to the feed cavity 5. The first material delivery port 13 and the second material delivery port 14 are aligned to form a delivery window, see Figure 4 When the telescopic column 4 moves back and forth, the delivery window is opened and closed.

[0038] There are two types of trays in the pipe chain conveyor, namely a first tray 10 and a second tray 11. Magnets 12 are embedded on the surfaces of the first tray 10 and the second tray 11, respectively. The magnets 12 on the first tray 10 and the magnets 12 on the second tray 11 are opposite in magnetic poles at one end close to the inner wall of the pipe 25. Figure 3 As shown, the N pole of the magnet 12 on the first tray 10 faces outward, and the S pole of the magnet 12 on the second tray 11 faces outward, and the first tray 10 and the second tray 11 are arranged alternately.

[0039] In this embodiment, a tube rack 21 is rotatably mounted inside the sampler 1, and a servo motor 22 is fixedly mounted at the end of the sampler 1. The servo motor 22 drives the tube rack 21 to rotate. A plurality of slots are provided on the surface of the tube rack 21, and the sampling tube 2 is mounted in the slots. Figure 8 The servo motor 22 is installed to rotate at a fixed angle to switch the position of the sampling tube 2. The lower surface of the sampler 1 is provided with an installation window 23 for taking and placing the sampling tube 2. The sampling tube 2 can be taken and placed in the installation window 23.

[0040] An induction ring 6 is arranged on the surface of the pipe 25 of the tube chain conveyor, and magnets 12 with opposite magnetic poles are arranged on the surfaces of the first material tray 10 and the second material tray 11. The induction coil 7 cuts the magnetic field in the opposite direction (the induced current of the induction coil 7 is introduced into the excitation coil 9 through the amplification circuit, which belongs to the common knowledge of electricity and is not described here), and provides the excitation coil 9 with a current with alternating directions. The direction of the electromagnetic force of the excitation coil 9 changes with the change of the direction of the current. The electromagnetic force drives the magnetic rod 8 to extend and retract, that is, the electromagnetic force of the excitation coil 9 pushes the telescopic column 4 to reciprocate, and each material tray in the tube chain conveyor moves to the right. The generated induced current is introduced into the excitation coil 9 to provide power for the telescopic column 4, so that the telescopic column 4 reciprocates and pushes the material in the feeding chamber 5 into the sampling tube 2. The amplitude of the reciprocating motion of the telescopic column 4 determines the amount of single-point sampling. Since the amplitude of the reciprocating motion of the telescopic column 4 is positively correlated with the moving speed of the material tray, the effect of adjusting the single-point sampling amount by controlling the moving speed of the material tray is achieved.

[0041] A contact sensor 24 is fixedly installed on the surface of the sampler 1, and the sensing head of the contact sensor 24 is facing the port of the sampling tube 2. When the sampling tube 2 is full of material, the movable plug 3 is pushed to the end of the sampling tube 2 and triggers the contact sensor 24, which is conducive to ending the sampling operation, or linking the servo motor 22 to drive the tube rack 21 to rotate, switching other sampling tubes 2 to continue sampling, providing conditions for automatic control.

[0042] Example 2

[0043] Reference Figure 2 , 5 , 6, 7, which is different from Example 1, is that a return spring 16 is provided inside the feeding chamber 5, and the end of the return spring 16 presses against the side of the telescopic column 4 away from the groove 15.

[0044] refer to Figure 7 An adjusting knob 17 is threadedly mounted on one end of the movable plug 3 away from the telescopic column 4, a conical disk 18 is fixedly mounted on the surface of the adjusting knob 17, an annular groove is provided on the surface of the movable plug 3, and a sealing ring 19 is sleeved in the annular groove, and a plurality of transmission rods 20 are radially slidably mounted inside the movable plug 3, one end of the transmission rod 20 is pressed against the inner annular surface of the sealing ring 19, and the other end of the transmission rod 20 is pressed against the conical surface of the conical disk 18.

[0045] like Figure 7 As shown, the adjusting knob 17 is rotated, the conical disk 18 presses against the transmission rod 20, and the transmission rod 20 applies a pressing force to the sealing ring 19, the pressure of the sealing ring 19 on the sampling tube 2 increases, and the sliding resistance (F resistance) of the movable plug 3 increases, wherein the force of the reset spring 16 on the telescopic column 4 is F spring, and F resistance>F spring;

[0046] When the tube chain conveyor is running, the second material tray 11 moves to the right and passes through the induction ring 6, and the force exerted by the excitation coil 9 on the telescopic column 4 is F1, and the direction of F1 is to the right, that is, the telescopic column 4 moves to the right, and the material falls into the area between the telescopic column 4 and the sampling tube 2;

[0047] When the second material tray 11 is away from the induction ring 6 and the first material tray 10 does not pass through the induction ring 6 (such as Figure 5 In the state shown), at this time, F1=0, under the action of the F spring, the material in the feeding chamber 5 is clamped by the telescopic column 4 and the movable plug 3, and because F resistance>F spring, the movable plug 3 does not move;

[0048] When the first material tray 10 passes through the induction ring 6, the force exerted by the excitation coil 9 on the telescopic column 4 is F2, and the direction of F2 is to the left, F resistance < F spring + F2, the telescopic column 4 moves to the left, and the material in the feeding chamber 5 is pushed into the sampling tube 2, and the movable plug 3 moves to the left, and reciprocates through the telescopic column 4, and the material is repeatedly pushed into the sampling tube 2. Figure 6As shown, until the movable plug 3 is pressed against the sensing head of the contact sensor 24.

[0049] It is worth noting that when the first material tray 10, the second material tray 11 and the induction ring 6 are at a long distance, F1=0, F2=0, due to the action of the reset spring 16, the telescopic column 4 can automatically approach the sampling tube 2, avoiding the "delivery window" being in an open state for a long time, causing a large amount of material to enter the feed chamber 5, so that the sampling tube 2 is quickly filled, which results in a large amount of single-point sampling and loses the meaning of multi-point sampling.

[0050] In this embodiment, by arranging an adjusting knob 17 at the end of the movable plug 3, the sliding resistance (Fresistance) of the movable plug 3 is adjustable, and a reset spring 16 (Fspring) is arranged at the end of the telescopic column 4. When Fresistance>Fspring, whether the telescopic column 4 can push the material into the sampling tube 2 is determined by the magnitude of the electromagnetic force of the excitation coil 9. At this time, when the total amount of material conveyed is small or the material fluidity is poor, the moving speed of the material tray can be reduced to reduce the frequency of the reciprocating action of the telescopic column 4 to ensure that enough material is pushed into the sampling tube 2 (that is, the time when the "conveying window" is in the open state increases). When the total amount of material conveyed is large or the material fluidity is strong, the moving speed of the material tray can be increased to increase the frequency of the reciprocating action of the telescopic column 4 (that is, the time when the "conveying window" is in the open state shortens) to ensure that the number of material pushes is sufficient until the sampling tube 2 is filled. This design, under the condition of conveying different materials, uses the adjustment of the running speed of the pipe chain conveyor to achieve the purpose of controllable sampling times and single-point sampling amount.

[0051] It should be noted that, since the reciprocating frequency of the telescopic column 4 increases when the tube chain conveyor is running at high speed, the large and small materials transported in the tube chain conveyor, among which the small materials are more likely to enter the feed chamber 5 through the "conveyance window", and then be pushed into the sampling tube 2, which has the effect of selective sampling, and the samples of small materials are convenient for subsequent detection operations, and at the same time can prevent the feed chamber 5 from being blocked by large materials.

[0052] The sampling device proposed in the present invention comprises a sampler 1 attached to the surface of a pipe 25 of a pipe chain conveyor, and the movement of the feed tray drives the telescopic column 4 to reciprocate to push the material into the sampling tube 2. This design increases the number of sampling times and has the function of controlling the sampling amount at a single point, making the sampling samples more uniform and comprehensive. The detection results can accurately reflect the actual situation of the feed and meet the use requirements of multi-point sampling.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent feed sampling device for a feed conveying system in a pig farm, comprising a sampler (1) fixedly mounted on the surface of a pipe (25) of a pipe chain conveyor, characterized in that: The sampler (1) is provided with a sample storage component and a material supply component inside; An induction ring (6) is fixedly mounted on the surface of the sampler (1), the induction ring (6) is wrapped around the surface of the pipe (25), and an induction coil (7) is embedded inside the induction ring (6); The sample storage assembly comprises a sampling tube (2), the sampling tube (2) is movably mounted in the sampler (1), and a movable plug (3) is slidably mounted in the sampling tube (2); The feeding assembly comprises a telescopic column (4), a magnetic rod (8) is fixedly mounted at the end of the telescopic column (4), the magnetic rod (8) is slidably connected to the sampler (1), and one end of the magnetic rod (8) away from the telescopic column (4) extends to the outside of the sampler (1), and one end of the magnetic rod (8) away from the telescopic column (4) is threadedly mounted with a positioning ring, an excitation coil (9) is embedded in the interior of the sampler (1), and the induction coil (7) is electrically connected to the excitation coil (9); There are two types of material trays in the pipe chain conveyor, namely a first material tray (10) and a second material tray (11), the surfaces of the first material tray (10) and the second material tray (11) are respectively embedded with magnets (12), and the magnets (12) on the first material tray (10) and the magnets (12) on the second material tray (11) have opposite magnetic poles at one end close to the inner wall of the pipe (25); A feeding chamber (5) is provided inside the sampler (1). The feeding chamber (5) is connected to the inner chamber of a pipe (25) of a tube chain conveyor through a conveying window. A telescopic column (4) is slidably installed in the feeding chamber (5). A material tray in the tube chain conveyor provides power for the telescopic column (4), so that the telescopic column (4) performs a reciprocating motion, thereby pushing the material in the feeding chamber (5) into the sampling tube (2).

2. According to claim 1, the intelligent feed sampling device for the feed conveying system of a pig farm is characterized by: The surface of the pipe (25) of the pipe chain conveyor is provided with a first feed port (13) connected to the inner cavity of the pipe (25), and the upper surface of the sampler (1) is provided with a second feed port (14) connected to the feed cavity (5). The first feed port (13) and the second feed port (14) are aligned to form the conveying window.

3. The intelligent feed sampling device for a pig farm feed conveying system according to claim 2 is characterized in that: A groove (15) is formed at one end of the telescopic column (4) close to the sampling tube (2), and a return spring (16) is arranged inside the feed chamber (5). The end of the return spring (16) presses against a side of the telescopic column (4) away from the groove (15).

4. The intelligent feed sampling device for a pig farm feed conveying system according to claim 3 is characterized by: An adjusting knob (17) is threadedly mounted on one end of the movable plug (3) away from the telescopic column (4), a conical disk (18) is fixedly mounted on the surface of the adjusting knob (17), an annular groove is formed on the surface of the movable plug (3), and a sealing ring (19) is sleeved in the annular groove, a plurality of transmission rods (20) are radially slidably mounted inside the movable plug (3), one end of the transmission rod (20) is pressed against the inner annular surface of the sealing ring (19), and the other end of the transmission rod (20) is pressed against the conical surface of the conical disk (18).

5. An intelligent feed sampling device for a feed conveying system in a pig farm according to any one of claims 1 to 4, characterized in that: A tube rack (21) is rotatably mounted inside the sampler (1), a servo motor (22) is fixedly mounted at the end of the sampler (1), the servo motor (22) drives the tube rack (21) to rotate, a plurality of slots are provided on the surface of the tube rack (21), the sampling tube (2) is mounted in the slots, and a mounting window (23) for taking in and placing the sampling tube (2) is provided on the lower surface of the sampler (1).

6. The intelligent feed sampling device for a pig farm feed conveying system according to claim 5 is characterized by: A contact sensor (24) is fixedly mounted on the surface of the sampler (1), and the induction head of the contact sensor (24) faces the port of the sampling tube (2).

Images