Accurate dry feed conveying line

Abstract

The invention discloses a precise dry feed conveying line, and relates to the field of dry feed conveying lines, the precise dry feed conveying line comprises a conveying line used for conveying dry feed, feeding pipes are connected along the conveying line at intervals, an electric control feed release valve is arranged between the feeding pipes and the conveying line, the precise dry feed conveying line further comprises a feed tower, and a feed conveying auger is arranged at the bottom end of the feed tower; an outlet of the conveying auger is communicated with a weighing hopper used for weighing the weight of the dry feed, the bottom end of the weighing hopper is communicated with a conveying line, and a valve plate capable of being electrically controlled to be switched on and off is further arranged. According to the invention, the feed weighing mechanism is arranged at the outlet of the electric conveying auger of the feed tower, the feed fed by the conveying auger is weighed intermittently as required, and the target discharge weight corresponding to the number of turns of rotation of the conveying auger is calibrated according to the actual weighing value, so that accurate feeding of the feed is realized according to the weight of the feed required by different troughs; nutrient requirements of different individuals in different stages are met, leakage, waste and excessive feeding are reduced, and feed expenses are directly saved.

Description

Technical Field

[0001] This invention relates to the field of dry feed conveying lines, specifically a precision dry feed conveying line. Background Technology

[0002] Automatic dry feed conveyor lines are standard equipment in modern farms. They are designed to automatically and efficiently distribute feed from feed towers to troughs in each pen. These systems are driven by motors and managed by a central controller, enabling automated and precise feeding from the feed tower to the pens, which greatly saves labor and feed costs.

[0003] The traditional weighing scheme for feed lines in the existing technology is "weighing hopper with buffer hopper". Its core lies in static, batch, and separate feed weight control. The specific workflow requires batch static weighing: 1. Feed is first fed into the weighing hopper and stopped after the target weight is reached; 2. The weighing hopper opens and discharges the material into the buffer hopper below; 3. The buffer hopper opens again and sends the material into the conveyor line. It adopts an open-loop weight control logic, like a balance with two cups. The material is weighed in one cup first and then poured into the other cup for discharge. The weighing hopper and the buffer hopper are two independent physical containers, requiring vertical space to install two hoppers. The equipment is tall and connected by valves, making the structure relatively complex and occupying a large space.

[0004] The relevant Chinese patent announcement number CN206866330U discloses an automatic pig feed conveying system, including a feed bin, multiple feed towers, a support frame, and a feeding trough. The system includes a first screw conveyor, the lower end of which is located inside the feed bin, and the upper end of which is connected to a feeding pipe. The feeding pipe is connected to each feed tower and is supported by the support frame. The feed towers are connected to a second screw conveyor, which is connected to each feeding trough via a discharge pipe.

[0005] Regarding the aforementioned technologies, existing dry feed conveying lines first transport feed to a temporary storage tower, and then distribute the feed to various feed troughs via augers. However, during the feed distribution process, since each auger corresponding to the tower simultaneously feeds multiple feed troughs, it is easy to cause uneven feed distribution among the feed troughs, resulting in insufficient or excessive feed supply to some pens.

[0006] Another related Chinese patent announcement, CN216869720U, discloses a feed additive quantitative dispensing device, including a base plate. A control box is fixed to one side of the upper surface of the base plate. A feeding box is provided at the top of the control box, and one side of the feeding box is open. An auger is rotatably connected inside the feeding box. A servo motor is fixed to the outer wall of the feeding box away from the opening. A hopper is fixed to the top of the feeding box near the servo motor. A discharge port is provided between the hopper and the feeding box. A PLC controller is provided inside the control box. A weighing instrument is fixed to the upper surface of the base plate away from the control box. A tray is fixed to the upper surface of the weighing instrument, and a dispensing bucket is provided on the upper surface of the tray.

[0007] In response to the aforementioned technologies, existing feed additive quantitative dispensing devices provide a solution for quantitatively weighing feed additives. Although combining technologies such as silos and feed conveying lines can achieve quantitative delivery of the required weight of feed to each trough, a weighing process is required for each feeding process. Furthermore, the weighing process is prone to errors due to the impact of falling feed or its fluidity. It is also difficult to achieve accurate feed dispensing to each trough. At the same time, the feed dispensing efficiency is too low.

[0008] In summary, existing dry feed conveying lines still suffer from inaccurate distribution and low efficiency in precise feeding control, making it difficult to meet the needs of modern aquaculture for refined management. Summary of the Invention

[0009] Based on this, the purpose of the present invention is to provide a dry feed precision conveying line to solve the technical problems of inaccurate distribution and low efficiency in the precision feeding control of existing dry feed conveying lines.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a precision dry feed conveying line, comprising a conveying line for conveying dry feed, and feeding pipes connected at intervals along the line, an electrically controlled feed release valve being provided between the feeding pipes and the conveying line, and a feed tower, wherein a conveying auger is provided at the bottom of the feed tower, the outlet of the conveying auger is connected to a weighing hopper for weighing the dry feed, the bottom of the weighing hopper is connected to the conveying line, and a valve plate capable of electrically controlling its on / off state is also provided.

[0011] By adopting the above technical solution, a feed weighing mechanism is installed at the outlet of the electric conveying auger of the feed tower. The feed delivered by the conveying auger is weighed intermittently as needed. The target output weight corresponding to the number of rotations of the conveying auger is calibrated according to the actual weighing value. Thus, the feed can be accurately delivered according to the feed weight required by different feed troughs, meeting the nutritional needs of different stages and individuals, reducing spillage, waste, and overfeeding, and directly saving feed costs.

[0012] The invention is further configured such that support rods are fixedly connected to both sides of the weighing hopper, the bottom end of the support rods is installed in the weighing box through a connector, a weighing sensor is provided between the weighing box and the connector, and the weighing box is installed on the ground.

[0013] Preferably, the conveying auger is calibrated by weighing the dry feed in the weighing hopper.

[0014] The present invention is further configured such that the outlet end of the weighing hopper is connected to the conveyor line via a first flexible connector, and the outlet of the conveying auger is connected to the inlet end of the weighing hopper via a second flexible connector.

[0015] Preferably, the use of a flexible hose connection can improve the weighing accuracy of the weighing hopper.

[0016] The present invention is further configured such that a feeding box is provided at the position of the corresponding feeding pipe of the conveyor line, the feeding box is fixedly connected to the outer wall of the conveyor line through a baffle groove at the top, the bottom end of the feeding box is used to connect to the feeding pipe, and the top end is slidably connected to an arc-shaped baffle plate in the baffle groove. The baffle plate fits against the outer wall of the conveyor line and can completely block the feed outlet at the position of the corresponding feeding pipe of the conveyor line.

[0017] Preferably, the feed is dispensed at a fixed point by sliding the feed box open and close.

[0018] The invention is further configured such that a discharge cylinder is connected to the conveyor line at the position corresponding to the feeding pipe, the diameter of the discharge cylinder is larger than the diameter of the conveyor line, and the bottom end is used to connect to the feeding pipe. The conveyor line is provided with a mating groove facing the discharge cylinder. A block that can move vertically is provided inside the discharge cylinder. The top surface of the block is arc-shaped, and when it mates with the mating groove, the conveyor line forms a complete pipe structure at the position of the block.

[0019] Preferably, before the blockages descend, they can both block and prevent the dry feed being transported in the conveyor line from getting stuck at the blockages.

[0020] The invention is further configured such that a fixed box and a guide cylinder are respectively arranged in opposite directions in the vertical direction inside the discharge cylinder, a rotating shaft is fixedly connected to the bottom surface of the block, a first slider is slidably connected in the vertical direction inside the fixed box, a second slider is slidably connected in the vertical direction inside the guide cylinder, an electric telescopic rod for controlling the lifting and lowering of the second slider is installed on the conveyor line corresponding to each discharge cylinder, and the two ends of the rotating shaft are rotatably connected to the first slider and the second slider respectively.

[0021] Preferably, the block can swing during the lifting and lowering process.

[0022] The invention is further configured such that two staggered first and second sliding grooves are respectively provided in the fixed box along the vertical direction. The first sliding groove is a straight sliding groove and is used to guide the first slider. The second sliding groove is a wavy sliding groove. A connecting plate is fixedly connected to one end of the rotating shaft near the first slider. Two connecting columns are fixedly connected to the connecting plate. The two connecting columns respectively contact the wavy sidewalls on both sides of the second sliding groove. The crests and troughs on the sidewalls of the second sliding groove correspond to each other.

[0023] Preferably, the block can swing back and forth during the lifting and lowering process to agitate the falling dry feed, thereby preventing the dry feed from becoming blocked during its fall and also preventing a small amount of dry feed from remaining on the top surface of the block.

[0024] The present invention is further configured such that the diameter of the connecting plate is larger than the diameter of the rotating shaft and is eccentrically disposed at the end of the rotating shaft, and all the connecting posts are located below the rotating shaft, and the connecting posts are at the same height when the block is horizontal.

[0025] Preferably, it facilitates the fixed installation of the connecting column on the connecting plate.

[0026] The present invention is further configured such that the bottom end of the fixed box is provided with a discharge port for discharging dry feed, the bottom end of the guide cylinder is also provided with an opening for discharging dry feed, the second slider is provided with a support foot along its own radial direction for contacting the inner wall of the guide cylinder, and a gap is left between the inner wall of the guide cylinder and the outer wall of the second slider for the dry feed to pass through.

[0027] Preferably, feed accumulation should be avoided inside the fixing box or guide tube.

[0028] The invention is further configured such that a valve plate is slidably connected to the bottom end of the weighing hopper in the horizontal direction, the valve plate is provided with a circular hole corresponding to the bottom outlet of the weighing hopper, and the remaining positions can completely block the bottom outlet of the weighing hopper, and an electric push rod for controlling the sliding of the valve plate is installed at the bottom end of the weighing hopper.

[0029] Preferably, the sliding of the valve plate is controlled by an electric push rod, thereby controlling the weighing state of the weighing hopper.

[0030] In summary, the present invention has the following main beneficial effects: This invention installs a feed weighing mechanism at the outlet of the electric conveying auger in the feed tower. The feed delivered by the conveying auger is weighed intermittently as needed. The target output weight corresponding to the number of rotations of the conveying auger is calibrated based on the actual weighing value. This allows for precise feed delivery according to the feed weight required by different feed troughs, meeting the nutritional needs of different stages and individuals, reducing spillage, waste, and overfeeding, and directly saving feed costs.

[0031] This invention provides a feeding pipe at each feed trough along the feed conveyor line, and an electrically controlled feed release valve at the connection point between the feeding pipe and the feed conveyor line. By controlling the opening and closing of the electrically controlled feed release valve and adjusting the number of rotations of the conveying auger, feed can be delivered to each feed trough at fixed points and in fixed quantities, reducing the time and intensity of patrolling and recording, and lowering reliance on manual labor and costs.

[0032] This invention features a longitudinally sliding baffle plate installed between the feed conveyor line and the feeding pipe. The baffle plate has an arc-shaped structure that conforms to the outer wall of the conveyor pipe. Feed can be dispensed by controlling the sliding of the baffle plate with an electric push rod. This effectively reduces the weight of feed accumulated at the electrically controlled feed release valve, facilitates accurate calculation of the actual feed weight in each trough, and allows for precise replenishment of feed to the target trough after each feeding cycle based on the livestock's feeding status. This avoids fighting and reduces stress, accurately controls body condition, lowers the risk of metabolic diseases, and achieves a cleaner feeding environment by reducing feed dust and mold.

[0033] This invention provides a vertically movable block between the feed conveyor line and the feeding pipe. The top surface of the block is an arc-shaped structure that adapts to the inner diameter of the conveyor pipe. When the block is not lowered, it fits against the inner wall of the feed conveyor line to form a complete pipe structure, which further prevents feed from accumulating above each feed trough during the conveying process. At the same time, the block can swing back and forth under the action of the guide structure during the descent, which can also prevent the blockage at the feed outlet due to excessive feed being conveyed at any time.

[0034] This invention utilizes dynamic, continuous, and integrated process control. The feeding auger directly delivers feed from the feed tower, while the weighing unit below monitors and provides real-time flow feedback. The system achieves precise quantitative feeding by controlling the auger's start, stop, and rotation speed. Employing closed-loop flow control logic, it functions like a smart faucet, adjusting the "flow" in real-time to achieve the target total amount. The weighing unit and feeding mechanism are tightly integrated, resulting in a compact structure. The material flow path is simple and unobstructed, with virtually no dead corners or residues. Different batches of feed are not mixed in different containers, effectively ensuring feed hygiene. Attached Figure Description

[0035] Figure 1 This is a perspective view of the conveyor line of the present invention; Figure 2 This is a perspective view of the conveyor line from another angle of the present invention; Figure 3 This is a perspective view of the material tower and weighing hopper of the present invention; Figure 4 This is a perspective view of the weighing hopper with the valve plate closed according to the present invention; Figure 5 This is a perspective view of the weighing hopper with the valve plate closed, from another angle according to the present invention. Figure 6 A perspective view of a second embodiment of the feed release valve used in the conveyor line of the present invention; Figure 7 A perspective view of a second embodiment of a feed release valve used in a conveyor line, representing another aspect of the present invention; Figure 8 A three-dimensional longitudinal cross-sectional view of the feed pipe position of the third type of feed release valve used in the conveyor line of the present invention, with the blockage closed. Figure 9 This is a cross-sectional schematic diagram of the third type of feed release valve used in the conveyor line of the present invention in the blocked state. Figure 10 For the present invention Figure 9 Enlarged view of A in the middle; Figure 11 A cross-sectional perspective view of the third type of feed release valve used in the conveyor line of the present invention, with the blockage open. Figure 12 For the present invention Figure 11 Enlarged view of B in the middle; Figure 13 This is a schematic diagram of the internal structure of the material discharge cylinder of the present invention; Figure 14 A cross-sectional perspective view of the third type of feed release valve used in the conveyor line of the present invention in the blocked state; Figure 15 For the present invention Figure 14 A magnified view of C.

[0036] Explanation of reference numerals in the attached figures: 1. Conveyor line; 101. Matching groove; 2. Weighing hopper; 201. Weighing box; 202. Support rod; 203. Connector; 204. Valve plate; 205. First flexible connecting pipe; 3. Feeding pipe; 301. Discharge cylinder; 302. Guide cylinder; 4. Material tower; 401. Conveying auger; 402. Second flexible connecting pipe; 5. Discharge box; 501. Baffle chute; 502. Baffle plate; 6. Block; 601. Rotating shaft; 7. Fixing box; 701. First chute; 702. Second chute; 703. Discharge port; 8. Connecting plate; 801. Connecting column; 9. First slider; 10. Second slider. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The embodiments of the present invention will now be described. Example 1

[0039] A precision dry feed conveying line, please refer to Figures 1-15 The system includes a conveyor line 1 for conveying dry feed, and feeding pipes 3 are connected at intervals along the line. Specifically, in this embodiment, the conveyor line 1 is a tubular chain conveyor line. An electrically controlled feed release valve is provided between the feeding pipes 3 and the conveyor line 1. Specifically, the electrically controlled feed release valve is a feed valve in the prior art, such as a flat electric slide valve or a flap valve. In this embodiment, a flap valve is specifically used. A chamber containing a small amount of feed is formed between the top of the flap valve and the conveyor line 1. When the feed is conveyed through this chamber, it will fill the chamber.

[0040] It also includes a feed tower 4, at the bottom of which is a conveying auger 401. The motor that drives the conveying auger 401 is a servo motor, which can accurately control the number of rotations and the rotation angle of the conveying auger. The outlet of the conveying auger 401 is connected to a weighing hopper 2 for weighing dry feed. The weighing hopper 2 has an inverted cone shape. The bottom of the weighing hopper 2 is connected to the conveyor line 1 and is also equipped with a valve plate 204 that can be electrically controlled to turn on and off.

[0041] When feeding feed into the troughs, since the weight of the remaining material inside the chamber is generally a fixed value, it is included in the feeding weight to achieve a more accurate feed weight. For example, if the weight of the remaining material in the chamber is 2kg, when feeding 40kg of feed into trough number one in sequence, feed tower 4 discharges 38kg of feed. When the feed reaches trough number one, the flap valve opens, discharging the 2kg of remaining material along with the 38kg of feed from conveyor line 1, completing the 40kg feed feeding task. However, when feeding feed into trough number two, because the weight of the remaining material in trough number one is relatively fixed, the weight of the remaining material in trough number one is included in the feeding weight. After the flap valve is closed, the chamber of slot one is empty. At this time, the feed tower 4 can directly discharge 40kg of feed. Of this 40kg of feed, 2kg will fill the chamber of slot one, while the remaining 38kg of feed will be fed into slot two along with the 2kg of feed in the chamber of slot two. This process is repeated to complete the subsequent feed feeding. However, when feeding feed in this way, the feed is easily affected by various factors such as whether the corresponding chambers of each slot are evenly filled when it moves in the conveyor line 1, making it difficult to accurately control the feeding result error.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figures 3-5The weighing hopper 2 is fixedly connected to both sides of the support rod 202. The bottom end of the support rod 202 is installed on the weighing box 201 through the connector 203. A weighing sensor is set between the weighing box 201 and the connector 203. Specifically, the top end of the support rod 202 is fixedly connected to the weighing hopper 2 through a clamp. When the clamp is loosened, the height of the weighing hopper 2 can be adjusted. The weighing box 201 is installed on the ground. The conveying auger 401 is calibrated by weighing the dry feed in the weighing hopper 2.

[0043] Specifically, the outlet end of the weighing hopper 2 is connected to the conveyor line 1 through the first flexible hose 205, and the outlet of the conveying auger 401 is connected to the inlet end of the weighing hopper 2 through the second flexible hose 402. The flexible hose connection can improve the weighing accuracy of the weighing hopper 2. Specifically, in this embodiment, the first flexible hose 205 and the second flexible hose 402 can be made of canvas or velvet. The bottom end of the weighing hopper 2 is slidably connected to a valve plate 204 in the horizontal direction. The valve plate 204 is provided with a round hole corresponding to the bottom outlet of the weighing hopper 2, and the remaining positions can completely block the bottom outlet of the weighing hopper 2. An electric push rod is installed at the bottom end of the weighing hopper 2 to control the sliding of the valve plate 204. The sliding of the valve plate 204 is controlled by the electric push rod, thereby controlling the weighing state of the weighing hopper 2.

[0044] Furthermore, in this embodiment, a single weighing hopper 2 corresponds to two material towers 4, and the conveying augers 401 at the bottom of the two material towers 4 can simultaneously supply material into the weighing hopper 2. In other undisclosed embodiments, a scheme in which a single material tower 4 corresponds to a single weighing hopper 2 can also be adopted. Moreover, multiple weighing hoppers 2 can also be arranged along the same conveyor line 1.

[0045] The weighing calibration data using the weighing hopper 2 disclosed in this embodiment are as follows: First, the stability of the weighing value is checked. The change in the weighing value is observed under two conditions: no load on the weighing hopper 2 and a 5kg weight is placed on it. When the first flexible tube 205 and the second flexible tube 402 are connected by a canvas flexible connection:

[0046] Conclusion: The weighing value fluctuated significantly and the reading jumped around. It took about 30 seconds to stabilize. The maximum fluctuation of the weighing value of the 5kg weight was 53g, with an upper and lower deviation of about 1%.

[0047] After removing the canvas flexible connection:

[0048] Conclusion: The weighing module itself has a stable structure, with a deviation of about 1‰ between the three weighings. However, the weighing readings fluctuate due to the stress deformation and recovery of the canvas flexible connection.

[0049] Improvement measures: Replace with soft velvet connectors, which are softer than canvas and reduce the impact on symmetry.

[0050] When using a soft cloth connector:

[0051] Conclusion: The stability of the symmetrical value of the velvet soft connector is minimal, with a deviation of 1.6‰ from the top and bottom values ​​of 5 weighings. However, the weighed value is 1.2% larger than the actual value, requiring symmetrical calibration.

[0052] After calibration using a handheld device and weights, the weight is then checked by weighing with weights.

[0053] Conclusion: The maximum deviation was 1.4‰, indicating that the calibration was completed. It is worth noting that under outdoor conditions, wind can also interfere with the weighing process, causing fluctuations in the weighing value.

[0054] Then, the feeding accuracy is calibrated. Multiple target feeding weights are set, and multiple measurements are taken with the valve plate 204 closed. The results are compared with the actual feeding weights weighed by the weighing hopper 2 to calculate and calibrate the feeding accuracy of the conveying auger 401.

[0055]

[0056] In the table above, before calibration, the previous auger calibration data was 508g / revolution. Specifically, the actual number of revolutions is the number of revolutions of the auger 401 based on the set target amount and combined with the previous calibration of 508g / revolution. Due to the limitation of the accuracy of the rotation angle of the auger 401, the actual discharge weight displayed by the system will be slightly higher than the set target amount. As can be seen from the data in the table above, there is a large deviation between the measured discharge amount obtained by weighing hopper 2 and the discharge amount displayed by the system. Based on the deviation value and the actual number of revolutions, it is calculated that the calibration value of the auger should be corrected to 506g / revolution. Example 2

[0057] A precision dry feed conveying line, please refer to Figures 1-15 Based on the first embodiment, the difference from the first embodiment is that the conveyor line 1 is provided with a dropping box 5 at the position corresponding to the feeding pipe 3. The dropping box 5 is fixedly connected to the outer wall of the conveyor line 1 through the baffle groove 501 at the top. The bottom end of the dropping box 5 is used to connect to the feeding pipe 3, and the top end is slidably connected to an arc-shaped baffle plate 502 in the baffle groove 501.

[0058] Specifically, the baffle plate 502 fits against the outer wall of the conveyor line 1 and can completely block the feed outlet of the feed pipe 3 corresponding to the position of the feed pipe 3 of the conveyor line 1. The feed is delivered to a fixed point by sliding the feed box 5. In this embodiment, since the baffle plate 502 is arc-shaped and fits against the outer wall of the conveyor line 1, when the baffle plate 502 is in the closed state, there is only a narrow space with a thickness equal to the wall thickness of the conveyor line 1 between the top surface of the baffle plate 502 and the conveyor line 1.

[0059] Furthermore, the inner chain of the conveyor line 1 is equipped with cleaning discs at intervals. The flexible part of the edge of the cleaning disc can play a certain scraping role when passing through the narrow space, thereby greatly reducing the probability of feed getting stuck above each baffle plate 502 during the feed conveying process. This allows the conveying auger 401 to discharge feed directly according to the target feeding amount. Especially when the feeding in the field is about to be completed and a small amount of feed needs to be added to individual pens, a small amount of feed can be directly conveyed to the target feed trough without having to consider the residual material above the original electric baffle plate. Example 3

[0060] A precision dry feed conveying line, please refer to Figures 1-15 Based on the second embodiment, the difference from the second embodiment is that the conveyor line 1 is connected to the dropping cylinder 301 at the position corresponding to the feeding pipe 3. The diameter of the dropping cylinder 301 is larger than the diameter of the conveyor line 1, and the bottom end is used to connect to the feeding pipe 3. The conveyor line 1 is provided with a matching groove 101 in the direction of the dropping cylinder 301, and a block 6 that can move in the vertical direction is provided inside the dropping cylinder 301.

[0061] Furthermore, the top surface of the block 6 is arc-shaped, and when it is matched with the matching groove 101, the conveying line 1 has a complete pipe structure at the position of the block 6. Before the block 6 descends, it can play a blocking role while preventing the dry feed conveyed in the conveying line 1 from getting stuck at each block 6, which further improves the accuracy of feed conveying.

[0062] For details regarding the above embodiments, please refer to [link / reference]. Figures 8-15 Inside the material discharge cylinder 301, there are corresponding fixed boxes 7 and guide cylinders 302 arranged vertically. The bottom surface of the block block 6 is fixedly connected to a rotating shaft 601. Inside the fixed box 7, there is a first slider 9 slidably connected vertically. Inside the guide cylinder 302, there is a second slider 10 slidably connected vertically.

[0063] Specifically, each material drop cylinder 301 on the conveyor line 1 is equipped with an electric telescopic rod for controlling the lifting and lowering of the second slider 10. The two ends of the rotating shaft 601 are rotatably connected to the first slider 9 and the second slider 10, respectively, so that the block 6 can swing during the lifting and lowering process. Since the rotating shaft 601 itself is relatively short and both the first slider 9 and the second slider 10 at both ends can slide in the vertical direction, applying force to the second slider 10 can drive the rotating shaft 601 to lift and lower smoothly without problems such as one end tilting up.

[0064] For details regarding the above embodiments, please refer to [link / reference]. Figures 8-15 The fixed box 7 has two staggered sliding grooves 701 and 702 arranged in the vertical direction. Specifically, the relative positions of the first sliding groove 701 and the second sliding groove 702 are staggered. The first sliding groove 701 is parallel to the second sliding groove 702 and is further away from the rotating shaft 601 than the second sliding groove 702.

[0065] Specifically, the first chute 701 is a straight chute and is used to guide the first slider 9. The sidewall of the second chute 702 is a wavy chute. A connecting plate 8 is fixedly connected to one end of the rotating shaft 601 near the first slider 9. Two connecting columns 801 are fixedly connected to the connecting plate 8. The axis of the connecting column 801 is parallel to the axis of the rotating shaft 601. The sidewalls of the two connecting columns 801 respectively contact the wavy sidewalls on both sides of the second chute 702. The crests and troughs on the sidewalls of the second chute 702 correspond to each other, so that the block 6 can swing back and forth during the lifting and lowering process, stirring the falling dry feed and avoiding the blockage of dry feed during the falling process. At the same time, it can also prevent a small amount of dry feed from remaining on the top surface of the block 6.

[0066] For details regarding the above embodiments, please refer to [link / reference]. Figures 10-15 The diameter of the connecting plate 8 is larger than the diameter of the rotating shaft 601, and it is eccentrically set at the end of the rotating shaft 601. The connecting columns 801 are all located below the rotating shaft 601. When the blocking block 6 is horizontal, the connecting columns 801 are at the same height, which makes it easy to fix the connecting columns 801 on the connecting plate 8. When the blocking block 6 is engaged with the mating groove 101, the connecting columns 801 do not contact the side wall of the second sliding groove 702.

[0067] Furthermore, the bottom end of the fixed box 7 is provided with a discharge port 703 for discharging dry feed, and the bottom end of the guide cylinder 302 is also provided with an opening for discharging dry feed. The second slider 10 is provided with a support foot along its own radial direction for contacting the inner wall of the guide cylinder 302. A gap is left between the inner wall of the guide cylinder 302 and the outer wall of the second slider 10 for dry feed to pass through, so that a small amount of feed entering the fixed box 7 or the guide cylinder 302 can be discharged smoothly, avoiding the accumulation of feed in the fixed box 7 or the guide cylinder 302.

[0068] In practical operation, the present invention works as follows: the conveying auger 401 rotates a set number of times to feed the feed into the weighing hopper 2. The feed passes directly through the weighing hopper 2 and enters the conveyor line 1. When the feed is conveyed by the conveyor line 1 and is about to be delivered to the feed trough, the electrically controlled feed release valve above the feeding pipe 3 opens, allowing the feed to fall into the feed trough through the feeding pipe 3. When the conveyor line 1 is long and the feeding is carried out in sequence, the conveying auger 401 can work intermittently, and the electrically controlled feed release valve above the feeding pipe 3 can open in sequence, effectively improving the efficiency of feed conveying. When the feeding auger 401 needs to be calibrated, the electric telescopic rod control valve plate 204 closes the opening below the weighing hopper 2, and the feeding auger 401 rotates a preset number of times. The number of rotations of the feeding auger 401 is finely adjusted and calibrated according to the weight actually weighed by the weighing hopper 2 compared with the preset weight to be released. The feed conveying calibration is performed once at a preset time interval to ensure the accuracy of each feeding.

[0069] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A precision dry feed conveying line, characterized in that, include: A conveyor line (1) is used to convey dry feed, and feeding pipes (3) are connected at intervals along the line. An electrically controlled feed release valve is provided between the feeding pipes (3) and the conveyor line (1). The feed tower (4) is provided with a conveying auger (401) at the bottom end. The outlet of the conveying auger (401) is connected to a weighing hopper (2) for weighing dry feed. The bottom end of the weighing hopper (2) is connected to a conveying line (1) and is also provided with a valve plate (204) that can be electrically controlled to switch on and off.

2. The dry feed precision conveying line according to claim 1, characterized in that: The weighing hopper (2) is fixedly connected to two sides by support rods (202), and the bottom end of the support rods (202) is installed on the weighing box (201) through a connector (203). A weighing sensor is provided between the weighing box (201) and the connector (203), and the weighing box (201) is installed on the ground.

3. The dry feed precision conveying line according to claim 2, characterized in that: The outlet end of the weighing hopper (2) is connected to the conveyor line (1) through the first flexible pipe (205), and the outlet of the conveying auger (401) is connected to the inlet end of the weighing hopper (2) through the second flexible pipe (402).

4. The dry feed precision conveying line according to claim 1, characterized in that: The conveyor line (1) is provided with a feeding box (5) at the position corresponding to the feeding pipe (3). The feeding box (5) is fixedly connected to the outer wall of the conveyor line (1) through the baffle groove (501) at the top. The bottom end of the feeding box (5) is used to connect to the feeding pipe (3), and the top end is slidably connected to an arc-shaped baffle plate (502) in the baffle groove (501). The baffle plate (502) fits against the outer wall of the conveyor line (1) and can completely block the feed outlet of the conveyor line (1) at the position corresponding to the feeding pipe (3).

5. The dry feed precision conveying line according to claim 1, characterized in that: The conveyor line (1) is connected to a discharge cylinder (301) at the position corresponding to the feeding pipe (3). The diameter of the discharge cylinder (301) is larger than the diameter of the conveyor line (1), and the bottom end is used to connect to the feeding pipe (3). The conveyor line (1) is provided with a matching groove (101) facing the discharge cylinder (301). A block (6) that can move in the vertical direction is provided inside the discharge cylinder (301). The top surface of the block (6) is arc-shaped, and when it is matched with the matching groove (101), the conveyor line (1) has a complete pipe structure at the position of the block (6).

6. The dry feed precision conveying line according to claim 5, characterized in that: Inside the material dropper (301), there are opposite fixed boxes (7) and guide cylinders (302) arranged in the vertical direction. The bottom surface of the block (6) is fixedly connected to a rotating shaft (601). Inside the fixed box (7), there is a first slider (9) slidably connected in the vertical direction. Inside the guide cylinder (302), there is a second slider (10) slidably connected in the vertical direction. On the conveyor line (1), there is an electric telescopic rod for controlling the lifting and lowering of the second slider (10) installed for each material dropper (301). The two ends of the rotating shaft (601) are rotatably connected to the first slider (9) and the second slider (10) respectively.

7. The dry feed precision conveying line according to claim 6, characterized in that: The fixed box (7) is provided with two staggered first slide grooves (701) and second slide grooves (702) in the vertical direction. The first slide groove (701) is a straight slide groove and is used to guide the first slider (9). The second slide groove (702) is a wave-shaped slide groove. The rotating shaft (601) is fixedly connected to a connecting plate (8) at one end near the first slider (9). The connecting plate (8) is fixedly connected to two connecting posts (801). The two connecting posts (801) respectively contact the wave-shaped sidewalls on both sides of the second slide groove (702). The peaks and troughs on the sidewalls of the second slide groove (702) correspond to each other.

8. The dry feed precision conveying line according to claim 7, characterized in that: The diameter of the connecting plate (8) is larger than that of the rotating shaft (601), and it is eccentrically positioned at the end of the rotating shaft (601). The connecting posts (801) are all located below the rotating shaft (601). When the block (6) is horizontal, the connecting posts (801) are at the same height.

9. The dry feed precision conveying line according to claim 7, characterized in that: The bottom end of the fixed box (7) is provided with a feed outlet (703) for discharging dry feed, and the bottom end of the guide cylinder (302) is also provided with an opening for discharging dry feed. The second slider (10) is provided with a support foot along its own radial direction for contacting the inner wall of the guide cylinder (302). A gap is left between the inner wall of the guide cylinder (302) and the outer wall of the second slider (10) for the dry feed to pass through.

10. The dry feed precision conveying line according to claim 1, characterized in that: The bottom end of the weighing hopper (2) is slidably connected to a valve plate (204) in the horizontal direction. The valve plate (204) is provided with a round hole corresponding to the bottom outlet of the weighing hopper (2), and the other positions can completely block the bottom outlet of the weighing hopper (2). The bottom end of the weighing hopper (2) is equipped with an electric push rod for controlling the sliding of the valve plate (204).

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