Feed crushing and screening device

Abstract

The invention relates to the technical field of screening, in particular to a feed crushing and screening device which comprises a crushing and screening box, a rotor hammer arranged in the crushing and screening box and used for crushing livestock feed, a screen arranged in the crushing and screening box and matched with the rotor hammer, and a conveying belt arranged in the crushing and screening box and located on one side of the screen. A first screening net used for screening livestock feed is arranged in the crushing and screening box, and a remodeling assembly used for conveying large livestock feed is arranged on the outer surface of the conveying belt. The backflow box is arranged in the crushing and screening box and used for recycling too small livestock feed, and a starch box used for storing starch is arranged in the crushing and screening box. According to the large-particle livestock feed screening device, residues of large-particle livestock feed on the screening net are reduced, it is ensured that more unqualified large-particle livestock feed can be collected for secondary crushing, meanwhile, it is avoided that too small livestock feed is discarded, and it is ensured that all raw materials are fully utilized.

Description

Technical Field

[0001] The invention relates to the technical field of screening, in particular to a feed crushing and screening device. Background Art

[0002] As the cornerstone of the livestock production chain, the quality of livestock feed is directly related to the stimulation of livestock's growth potential, maintenance of their health, and the ultimate economic benefits of production. Feed crushers play a vital role in this link. By finely controlling the particle size and uniformity of feed, they greatly improve the digestibility and utilization rate of feed, ensuring that livestock and poultry can efficiently absorb every nutrient, thereby promoting their rapid and healthy growth and enhancing their body resistance. However, in the face of the growing demand for precision and efficiency in feed processing in modern animal husbandry, traditional feed processing equipment has exposed limitations such as low efficiency, high energy consumption, and inaccurate particle size control, which has undoubtedly become a bottleneck restricting the high-quality development of animal husbandry.

[0003] In this context, it is particularly urgent to develop a new type of livestock feed crushing and screening device that is efficient, energy-saving and intelligent. This innovation not only requires the equipment to achieve a significant reduction in energy consumption and a significant improvement in efficiency during the crushing process, but also requires intelligent control functions to flexibly adjust the feed particle size according to actual production needs to ensure that each batch of feed can achieve the optimal particle size distribution and uniformity standards. In addition, the application of intelligent technology will also promote the automation and informatization level of the feed processing process, facilitate real-time monitoring of production status, and promptly discover and solve potential problems, thereby effectively reducing production costs and improving overall operational efficiency.

[0004] For example, the patent document with the prior art announcement number CN214346798U belongs to the technical field of screening devices and discloses a livestock feed production livestock feed crushing and screening device, including a bottom plate, a support frame, a crushing component and a screening component, wherein the support frame is arranged on the top wall of the bottom plate, the crushing component is arranged on the top of the support frame, and the screening component is arranged on the bottom plate and inside the support frame. The patent document crushes the livestock feed by the crushing component, and the screening component screens the crushed livestock feed.

[0005] In the current livestock feed crushing and screening device, although the cleverly designed crushing components can efficiently complete the crushing and preliminary screening tasks of livestock feed, there is a problem that cannot be ignored in the actual operation process: those unqualified livestock feed particles that fail to pass the screening standards often fail to receive timely secondary processing. This phenomenon not only directly leads to the unwarranted waste of livestock feed resources, but may also have an adverse effect on the subsequent livestock feed ratio and animal feeding effect, thereby affecting the cost control and production efficiency of the entire breeding industry. Specifically, unqualified livestock feed particles may not meet the feeding standards due to being too large or too small. If these particles are ignored and mixed into the final product, it will directly affect the uniformity and palatability of the livestock feed, and reduce the feeding efficiency and growth performance of the animal. In addition, these untreated unqualified particles may also contain more dust or impurities, posing a potential threat to animal health. To this end, the present application proposes a feed crushing and screening device. Summary of the invention

[0006] The object of the present invention is to provide a feed crushing and screening device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a feed crushing and screening device, comprising a crushing and screening box and a rotor hammer disposed inside the crushing and screening box for crushing livestock feed, and a screen disposed inside the crushing and screening box and adapted to the rotor hammer, and further comprising: A conveyor belt is arranged inside the crushing and screening box and located on one side of the screen, wherein a first screening screen for screening livestock feed is arranged inside the crushing and screening box, and a reshaping component for conveying larger livestock feed is arranged on the outer surface of the conveyor belt; A reflux box is arranged inside the crushing and screening box and is used to recover undersized livestock feed. A starch box for storing starch is arranged inside the crushing and screening box. A discharge assembly for discharging starch in the starch box is arranged inside the crushing and screening box. A rolling plate for guiding livestock feed is fixedly connected to the top of the reflux box. The water tank is arranged inside the crushing and screening box for storing water. The bottom of the water tank is connected to a pressure shell, and one end of the pressure shell is connected to a water pipe connected to the reflux box. A drainage component is arranged inside the pressure shell.

[0008] Preferably, the reshaping component includes a plurality of connecting rubber sheets fixedly connected to the outer surface of the conveyor belt, one end of the screen is fixedly connected to a hook sheet, one end of each of the plurality of connecting rubber sheets is fixedly connected to an inclined sheet, the interior of the crushing and screening box is rotatably connected to a plurality of pulleys, and the conveyor belt is sleeved on the outer surfaces of the plurality of pulleys, and one end of the crushing and screening box is fixedly connected to a servo motor for driving the pulley to rotate.

[0009] Preferably, a second screening net is provided inside the crushing and screening box, a plurality of connecting slide rods are commonly connected between the first screening net and the second screening net, and the plurality of connecting slide rods are all slidably connected to the crushing and screening box, the outer surfaces of the connecting slide rods are all provided with springs for resetting the connecting slide rods, and the plurality of conveyor belts can all come into contact with the first screening net.

[0010] Preferably, the bottom of the crushing and screening box is fixedly connected with a discharge port, the bottom of the discharge port is fixedly connected with a first fan, the output ends of the first fans are fixedly connected with air shells, a return cavity is opened inside the reflux box, the bottom of the reflux box is fixedly connected with a second fan, and the output ends of the second fans are fixedly connected with a plurality of air pipes that can guide air into the return cavity.

[0011] Preferably, the discharge assembly includes an inclined plate rotatably connected to the top of the reflux box, one side of the inclined plate is connected to a plurality of material receiving pipes, the bottom of the starch box is connected to a plurality of discharge pipes, the interiors of the plurality of discharge pipes are rotatably connected to a plurality of first staggered plates, the tops of the plurality of material receiving pipes are rotatably connected to a plurality of second staggered plates, and the tops of the plurality of second staggered plates are fixedly connected to interference pieces that can interfere with the first staggered plates.

[0012] Preferably, the drainage assembly includes a piston plate slidably connected to the interior of the pressure shell, and the piston plate is adapted to the interior of the pressure shell, a cylinder is fixedly connected to the top of the pressure shell, and an output end of the cylinder is fixedly connected to a connecting rod fixedly connected to the piston plate, and a tension spring is sleeved on the outer surface of the connecting rod.

[0013] Preferably, the bottom of the pressure shell is connected to an air cylinder, the bottom of the air cylinder is slidably connected to a spring piston rod adapted thereto, the bottom of the spring piston rod is rotatably connected to a third screening net, and the bottom of the third screening net is rotatably connected to the top of the rolling plate.

[0014] Preferably, a junction plate is fixedly connected to the interior of the crushing and screening box, and the top of the water tank is fixedly connected to the bottom of the junction plate.

[0015] Preferably, a drive motor is fixedly connected to one side of the crushing and screening box, a driving wheel is fixedly connected to the output end of the driving motor, one end of the crushing and screening box is rotatably connected to a driven wheel fixedly connected to the rotor hammer, and the driven wheel is belt-connected to the driving wheel.

[0016] Preferably, the top of the crushing and screening box is connected to a feed port for conveying materials, the interior of the feed port is fixedly connected to a dryer, and the output end of the dryer is connected to a first air outlet.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When the livestock feed is screened out of oversized particles through the first screening net, the connecting rubber sheet on the outer surface of the conveyor belt can scoop up these large particles of livestock feed that have not passed through. Since the first screening net is set to be inclined, the livestock feed that has not passed through the first screening net can be guided to roll toward the conveyor belt, and the inclined sheet ensures that the material will not fall during transportation. When transported to the top of the screen, the inclined sheet collides with the inverted hook sheet, and the material falls back into the screen and is crushed again by the rotor hammer. This process enables the originally unqualified large-particle livestock feed to be processed again, avoiding the discarding of the particles due to being too large and not meeting the requirements, greatly improving the utilization rate of livestock feed, reducing waste, and lowering the production cost of livestock feed. During the operation of the conveyor belt, the connecting rubber sheet continuously contacts the first screening net, which not only scoops up the material, but also improves the comprehensiveness of the scooped material, reduces the residue of large-particle livestock feed on the screening net, and ensures that more unqualified large-particle livestock feed can be collected for secondary crushing, further improving the utilization rate of livestock feed raw materials. The first screening net is connected to the crushing and screening box by connecting slide rods and springs. When the conveyor belt is running, the connecting rubber sheet continuously contacts the first screening net to force it to move downward, and after breaking away from the conflict, it quickly resets and shakes under the action of the spring. This shaking can effectively prevent livestock feed particles from getting stuck in the mesh of the screen, making the screening process smoother and allowing livestock feed particles that meet the size requirements to pass through the screen more quickly, thereby significantly improving the screening efficiency and speeding up the entire livestock feed crushing and screening process. The first screening net and the second screening net are arranged in the device, and the two layers of screening nets are connected by connecting slide rods and springs. This structure makes the first screening net have a certain impact on the second screening net when it shakes, further optimizing the screening effect, ensuring that only livestock feed particles that meet the required size are finally screened out, and improving the overall screening efficiency and livestock feed product quality. The dryer arranged in the feed inlet cooperates with the first air outlet to perform preliminary drying treatment on the incoming livestock feed raw materials. This can effectively avoid the problem of adhesion caused by high humidity of raw materials, ensure that the livestock feed raw materials remain loose when entering the crushing stage, which is conducive to the efficient crushing of the rotor hammer, improving the crushing effect and efficiency. The driving motor drives the driving wheel, and the driven wheel is driven by the belt, which drives the rotor hammer to rotate. This transmission method is stable and can ensure that the rotor hammer crushes the livestock feed at a stable speed. At the same time, the servo motor drives the pulley to rotate, which in turn drives the conveyor belt to move. The entire power transmission system is stable and reliable, which provides a guarantee for the efficient and continuous operation of the device.

[0018] 2. The first fan cooperates with the discharge port and the air shell to accurately blow up the undersized materials and make them enter the return box when the materials are discharged. This avoids the discarding of undersized livestock feed and ensures that all raw materials are fully utilized. For example, in large-scale livestock feed production, a large amount of undersized livestock feed that would otherwise be wasted can be recovered every day, which significantly reduces the cost of raw materials. The various components of the discharge assembly work together, and the coordination of the inclined plate, the receiving pipe, the discharge pipe and the staggered plate enables the starch to be mixed with the undersized livestock feed at the right time. The expansion of the airflow in the return cavity pushes the inclined plate, so that the receiving pipe is connected to the discharge pipe, and the starch is discharged and mixed with the small particle material, increasing its shape to meet the normal size requirements. This precisely controlled secondary molding process ensures the consistency and quality stability of livestock feed products. The second and third screening nets in the device screen the livestock feed at multiple levels. The second screening net screens the livestock feed after the initial mixing to ensure that only materials that meet certain size requirements enter the subsequent links. The third screening net performs the final check on the final livestock feed, and cooperates with the spring piston rod to continuously shake to achieve efficient screening. This further improves the quality stability and consistency of livestock feed products, ensures that the particle size of the final product fully meets the requirements, and reduces the probability of unqualified products. The unique design of the spring piston rod and the third screening net enables it to shake with the reciprocating motion of the piston plate. This dynamic screening method greatly improves the screening efficiency compared to traditional static screening. It can effectively prevent livestock feed particles from clogging on the screen, ensure a smooth screening process, and allow livestock feed particles that meet the size requirements to pass through the screen quickly, thereby improving the efficiency of the entire production process. For example, the device can process more livestock feed in the same amount of time, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the protective shell; Figure 3 It is a schematic diagram of the cross-sectional structure of the crushing and screening box in the present invention; Figure 4 It is a structural schematic diagram of the conveyor belt in the present invention; Figure 5 It is a structural schematic diagram of the pulley in the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement at the center A; Figure 7 It is a cross-sectional structural schematic diagram of the reflux box in the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at B in the middle; Fig. 9It is a structural schematic diagram of the rolling plate in the present invention; Fig.10 It is a schematic diagram of the structure of the second screening net in the present invention; Fig.11 For the present invention Fig.10 A magnified schematic diagram of the structure at C in the middle; Fig.12 It is a schematic diagram of the structure of the starch box in the present invention.

[0020] In the figure: 100, crushing and screening box; 101, feed port; 102, discharge port; 103, protective shell; 104, driving motor; 105, driving wheel; 106, driven wheel; 107, rotor hammer; 108, screen; 109, dryer; 110, first air outlet; 200, conveyor belt; 201, pulley; 202, connecting rubber sheet; 203, first screening net; 204, connecting slide bar; 205, spring; 206, second screening net; 207, inclined sheet; 208, inverted hook sheet; 209, servo motor; 300, reflux box; 30 1. The first fan; 302. The air shell; 303. The rolling plate; 304. The return chamber; 305. The second fan; 306. The air pipe; 307. The converging plate; 308. The inclined plate; 309. The receiving pipe; 310. The starch box; 311. The discharge pipe; 312. The first interlaced plate; 313. The second interlaced plate; 314. The abutment plate; 400. The water tank; 401. The cylinder; 402. The connecting rod; 403. The pressure shell; 404. The piston plate; 405. The tension spring; 406. The water pipe; 407. The air cylinder; 408. The spring piston rod; 409. The third screening net. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3The present invention provides a technical solution: a feed crushing and screening device, comprising a crushing and screening box 100 and a rotor hammer 107 arranged inside the crushing and screening box for crushing livestock feed, and a screen 108 arranged inside the crushing and screening box 100 and adapted to the rotor hammer 107, one side of the crushing and screening box 100 is fixedly connected to a driving motor 104, the output end of the driving motor 104 is fixedly connected to a driving wheel 105, one end of the crushing and screening box 100 is rotatably connected to a driven wheel 106 fixedly connected to the rotor hammer 107, and the driven wheel 106 is connected to the driving wheel 105 by a belt. The top of the crushing and screening box 100 is connected to a feed port 101 for conveying materials. A dryer 109 is fixedly connected to the inside of the feed port 101. The output end of the dryer 109 is connected to a first air outlet 110. By setting the dryer 109 and the first air outlet 110 together, the livestock feed raw materials entering the feed port 101 can be preliminarily dried. This design is intended to preliminarily dry the incoming livestock feed raw materials to prevent them from sticking, promote dehydration, and prepare for the subsequent crushing process. The synergistic effect of the rotor hammer 107 and the screen 108 can efficiently crush the livestock feed raw materials.

[0023] See also Figure 3 , Figure 4 as well as Figure 5 , and also includes a conveyor belt 200, which is arranged inside the crushing and screening box 100 and located on one side of the screen 108. The crushing and screening box 100 is provided with a first screening net 203 for screening livestock feed. The outer surface of the conveyor belt 200 is innovatively installed with a reshaping component, which can capture oversized livestock feed particles and re-convey them to the screen 108 for secondary crushing, ensuring that all feed particles meet the required size standards, thereby significantly improving the utilization rate of livestock feed.

[0024] See also Figure 4 , Figure 5 as well as Figure 6The reshaping component includes a plurality of connecting rubber sheets 202 fixedly connected to the outer surface of the conveyor belt 200, a hook sheet 208 fixedly connected to one end of the screen 108, a bevel sheet 207 fixedly connected to one end of each of the connecting rubber sheets 202, a plurality of pulleys 201 rotatably connected to the inside of the crushing and screening box 100, and the conveyor belt 200 is sleeved on the outer surface of the plurality of pulleys 201, a servo motor 209 for driving the pulley 201 to rotate is fixedly connected to one end of the crushing and screening box 100, and a servo motor 209 is fixedly connected to one end of the crushing and screening box 100 for driving the pulley 201 to rotate. This design enables the conveyor belt 200 to scoop up livestock feed particles that have not passed through the first screening net 203 during transportation. The first screening net 203 is designed to be inclined to facilitate guiding the feed particles that have not passed through to roll toward the conveyor belt 200. The inclined piece 207 ensures that the material will not fall after being scooped up until it is transported to the top of the screen 108, at which time the inclined piece 207 contacts the inverted hook piece 208 and bends under force. At this time, the material connected to the top of the rubber sheet 202 will fall into the screen 108 for secondary crushing.

[0025] Furthermore, a second screening net 206 is provided inside the crushing and screening box 100, and a plurality of connecting slide bars 204 are commonly connected between the first screening net 203 and the second screening net 206, and the plurality of connecting slide bars 204 are all slidably connected to the crushing and screening box 100, and the outer surfaces of the connecting slide bars 204 are sleeved with springs 205 for resetting the connecting slide bars 204, and the plurality of conveyor belts 200 can all contact the first screening net 203, and the plurality of conveyor belts 200 can all contact the first screening net 203, and continuously contact the first screening net 203 during operation, so that the first screening net 203 is forced to move downward, and then quickly reset under the action of the spring 205, thereby producing a shaking effect. This shaking not only improves the comprehensiveness of shoveling materials, but also promotes the improvement of screening efficiency.

[0026] Specifically, the material is poured into the crushing and screening box 100 through the feed port 101, and then the driving motor 104 is turned on to drive the driving wheel 105 to rotate, so that the driving wheel 105 rotates through the belt driven wheel 106 to drive the rotor hammer 107 to rotate, and then the material is crushed and discharged through the screen 108. The crushed material will first pass through the first screening net 203, and the oversized material cannot pass through the first screening net 203. At the same time, the servo motor 209 is turned on to drive the pulley 201 to rotate, thereby driving the conveyor belt 200. The conveyor belt 200 continuously contacts the first screening net 203 and makes it vibrate. Meanwhile, the connecting rubber sheet 202 contacts the first screening net 203 and scoops up the oversized materials, thereby continuously raising the position of the materials. Finally, the inclined sheet 207 contacts the inverted hook sheet 208 and makes it bend under force, and then discharges the materials carried on the top thereof. Subsequently, the materials will enter the interior of the screening net 108 again and be crushed for the second time by the action of the rotor hammer 107. Meanwhile, the connecting rubber sheet 202 contacts the first screening net 203 and makes it vibrate, thereby improving the screening efficiency.

[0027] In summary, when the livestock feed is carefully screened by the first screening net 203 to ensure that only particles of appropriate size pass through, those large particles of livestock feed that fail to pass through will not be wasted. The connecting rubber sheet 202 on the outer surface of the conveyor belt 200 is like a careful worker, shoveling up these "missed" large particles one by one, providing them with an opportunity to be processed again. This design not only reflects the full utilization of resources, but also deeply reflects the pursuit of efficient use of feed in the animal husbandry industry. Animal husbandry, as an important part of agriculture, carries the heavy responsibility of providing humans with rich animal food. From traditional grazing to modern intensive breeding, the development of animal husbandry has always been accompanied by the continuous improvement of feed utilization efficiency. The quality and utilization rate of feed are directly related to the growth rate, health status and quality of the final product of the animal. Therefore, how to ensure the efficient use of feed, reduce waste and reduce production costs has always been the focus of animal husbandry. In the process of feed processing, crushing and screening are key steps to ensure that the feed is suitable for animal digestion and absorption. Too large feed particles may make it difficult for animals to chew and digest, affecting nutrient absorption; while too small particles may increase dust content and irritate the respiratory system of animals. Therefore, through precise crushing and screening, feed that meets the digestive characteristics of animals can be prepared to improve its utilization rate and digestion and absorption rate. In this device, the inclined design of the first screening net 203 cleverly guides the large particles that have not passed to the conveyor belt 200, and the inclined piece 207 ensures the stability of the material during transportation. When the material is conveyed to the top of the screen 108, the collision between the inclined piece 207 and the hook piece 208 causes the material to fall back into the screen accurately for secondary crushing. This process not only avoids the discarding of feed that does not meet the requirements due to excessively large particles, but also greatly improves the utilization rate of livestock feed, reduces waste, and reduces production costs. In addition, the cooperation of the dryer 109 in the device and the first air outlet 110 performs a preliminary drying treatment on the incoming livestock feed raw materials. This step effectively avoids the problem of sticking caused by high humidity of the raw materials, ensures that the feed raw materials remain loose when entering the crushing stage, and is conducive to the efficient crushing of the rotor hammer 107. This not only improves the crushing effect and efficiency, but also provides a strong guarantee for subsequent screening and processing. The entire power transmission system is driven by the drive motor 104 and the servo motor 209, ensuring the stable and efficient operation of the device. This design not only improves the screening efficiency and feed product quality, but also provides strong support for the efficient and sustainable development of animal husbandry.

[0028] Example 2: Please refer to Figure 7 , Figure 8 as well as Fig. 9, too small livestock feed will also pass through the first screening net 203. In order to prevent a large amount of too small from being mixed in the normal-sized livestock feed, the present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a feed crushing and screening device, also includes a reflux box 300, which is arranged inside the crushing and screening box 100 and is used to recover too small livestock feed. The crushing and screening box 100 is provided with a starch box 310 for storing starch inside, and the crushing and screening box 100 is provided with a discharge assembly for discharging starch in the starch box 310. The top of the reflux box 300 is fixedly connected to a rolling plate 303 for guiding livestock feed, the bottom of the crushing and screening box 100 is fixedly connected to a discharge port 102, and the bottom of the discharge port 102 is fixedly connected to a first air filter. The output ends of the first blower 301 are fixedly connected with the air shell 302, a return cavity 304 is opened inside the return box 300, a second blower 305 is fixedly connected with the bottom of the return box 300, and a plurality of air pipes 306 which can guide air into the return cavity 304 are fixedly connected with the output end of the second blower 305. By setting the first blower 301, the material which finally passes through the discharge port 102 can be blown, and the too small material will be blown up by the first blower 301 and enter the interior of the return box 300 for subsequent secondary processing, wherein the discharge component can be mixed with the too small livestock feed to increase its shape so that it meets the normal size requirement, and at the same time the air pipe 306 can increase the gas flow rate in the return cavity 304 to facilitate the flow of small livestock feed.

[0029] See also Fig.10 , Fig.11 as well as Fig.12 The discharge assembly includes an inclined plate 308 rotatably connected to the top of the reflux box 300, a plurality of material receiving pipes 309 are connected to one side of the inclined plate 308, a plurality of discharge pipes 311 are connected to the bottom of the starch box 310, a plurality of first staggered plates 312 are rotatably connected to the inside of the plurality of discharge pipes 311, a plurality of second staggered plates 313 are rotatably connected to the top of the plurality of material receiving pipes 309, and a plurality of abutment sheets 314 that can abut against the first staggered plates 312 are fixedly connected to the top of the plurality of second staggered plates 313, and the inside of the crushing and screening box 100 is connected to the plurality of first staggered plates 312. A merging plate 307 is fixedly connected. When the airflow in the return chamber 304 expands, the inclined plate 308 is pushed to move so that the receiving pipe 309 is close to the discharge pipe 311 and is placed on its outer surface. At the same time, the second staggered plate 313 will be abutted by the discharge pipe 311 and opened. At the same time, the abutment sheet 314 will abut the first staggered plate 312 to connect the two, so as to facilitate the discharge of starch in the starch box 310 and mix with small particle materials. After the two are mixed, they will pass through the second screening net 206 again and roll on the top of the rolling plate 303 to be reinforced.

[0030] Furthermore, it also includes a water tank 400, which is arranged inside the crushing and screening box 100 for storing water. The top of the water tank 400 is fixedly connected to the bottom of the confluence plate 307. The bottom of the water tank 400 is connected to the pressure shell 403, and one end of the pressure shell 403 is connected to the water pipe 406 connected to the return box 300. The pressure shell 403 is provided with a drainage component inside. The drainage component includes a piston plate 404 slidably connected to the inside of the pressure shell 403, and the piston plate 404 is adapted to the inside of the pressure shell 403. A cylinder 401 is fixedly connected to the top, and a connecting rod 402 fixedly connected to a piston plate 404 is fixedly connected to the output end of the cylinder 401. A tension spring 405 is sleeved on the outer surface of the connecting rod 402. In order to further increase the viscosity between the undersized livestock feed and starch, the livestock feed can be moistened by introducing water into the reflux box 300 to increase its viscosity. The continuous movement of the piston plate 404 will push the water in the water tank 400 into the water pipe 406, and under the push of the piston plate 404, the water can be evenly atomized and sprayed onto the surface of the livestock feed.

[0031] Among them, the bottom of the pressure shell 403 is connected to the air cylinder 407, the bottom of the air cylinder 407 is slidably connected to the spring piston rod 408 adapted thereto, the bottom of the spring piston rod 408 is rotatably connected to the third screening net 409, the bottom of the third screening net 409 is rotatably connected to the top of the rolling plate 303, and the third screening net 409 is rotatably connected to the top of the rolling plate 303. By setting the third screening net 409, the mixed livestock feed can be finally screened, and the spring piston rod 408 can reciprocate following the reciprocating motion of the piston plate 404, thereby continuously pushing the third screening net 409 to shake, thereby achieving efficient screening.

[0032] Specifically, the material passing through the first screening net 203 passes through the second screening net 206 again and falls to the top of the rolling plate 303, then rolls to the top of the discharge port 102 and is finally discharged, and at the same time, the first fan 301 is turned on to make the air shell 302 generate airflow so that the fine materials passing through the top of the discharge port 102 are blown and enter the interior of the return box 300, and at the same time, the cylinder 401 is turned on to reciprocate, thereby driving the piston plate 404 to reciprocate inside the pressure shell 403, so that the moisture in the water tank 400 continuously enters the interior of the water pipe 406 and is discharged to the interior of the return box 300 to moisten the material entering the return box 300, and at the same time, the second fan 305 is turned on to fill the interior of the multiple air pipes 306 with air to accelerate the flowing gas in the return chamber 304, and then the gas will The inclined plate 308 is pushed to move so that the fine materials are discharged to the top of the second screening net 206. At the same time, the material receiving pipe 309 will drive the second staggered plate 313 to contact the discharge pipe 311 and open it. Then the contact piece 314 contacts the first staggered plate 312 to open the discharge pipe 311, so that the material receiving pipe 309 and the discharge pipe 311 are connected with each other, so as to facilitate the discharge of starch in the starch box 310 to the top of the second screening net 206 and adhere to the moistened fine materials. Then, it passes through the second screening net 206 again and rolls on the top of the rolling plate 303 to be formed, and then passes through the third screening net 409 to be discharged. At the same time, the water in the pressure shell 403 will push the spring piston rod 408 downward when passing through the water pipe 406, so that the third screening net 409 moves, thereby forming a vibration to improve its passing efficiency.

[0033] In summary, the first fan 301 cooperates precisely with the discharge port 102 and the air shell 302, and at the critical moment of material discharge, those too small livestock feed particles are accurately blown up, so that they can enter the reflux box 300 for further processing. This innovative design not only avoids the unnecessary discarding of too small feed particles, but also ensures that every grain of feed raw material can be fully utilized, reflecting the animal husbandry industry's deep understanding and unremitting pursuit of efficient resource utilization. In this device, through the precisely controlled secondary molding process, too small feed particles can be mixed with additives such as starch to increase their shape to meet the normal size requirements. This process not only improves the utilization rate of feed, but also ensures the consistency and quality stability of livestock feed products. For animal husbandry, the quality of feed is directly related to the growth rate and health of animals, which in turn affects the quality and output of the final product. Therefore, ensuring that the feed particle size meets the requirements through precise screening and molding is a key link in improving the production efficiency and quality of animal husbandry. In addition, the second screening net 206 and the third screening net 409 in the device perform multi-level screening of livestock feed, further improving the quality stability and consistency of feed products. The second screening net screens after the initial mixing to ensure that only materials that meet certain size requirements enter the subsequent links; while the third screening net performs the final check on the final feed, and cooperates with the shaking of the spring piston rod to achieve efficient screening. This multi-level, dynamic screening method greatly improves screening efficiency and feed quality compared to traditional static screening.

[0034] Working principle: When in use, first pour the material into the crushing and screening box 100 through the feed port 101, then turn on the drive motor 104 to drive the driving wheel 105 to rotate, so that the driving wheel 105 drives the driven wheel 106 to rotate through the belt, thereby driving the rotor hammer 107 to rotate, and then the material is crushed and discharged through the screen 108. The crushed material will first pass through the first screening net 203; The oversized materials cannot pass through the first screening net 203, and the servo motor 209 is turned on to drive the pulley 201 to rotate, thereby driving the conveyor belt 200 to move, so that the conveyor belt 200 constantly contacts the first screening net 203 to move and make it shake, and the connecting rubber sheet 202 contacts the first screening net 203 and scoops up the oversized materials, thereby constantly raising the position of the materials, and finally the inclined sheet 207 contacts the inverted hook sheet 208 to bend it under force, and then discharge the materials carried on the top thereof, and then the materials will enter the interior of the screening net 108 again and be crushed for the second time by the action of the rotor hammer 107; The material passing through the first screening net 203 passes through the second screening net 206 again and falls to the top of the rolling plate 303, then rolls to the top of the discharge port 102 and is finally discharged. At the same time, the first fan 301 is turned on to make the air shell 302 generate airflow so that the fine materials passing through the top of the discharge port 102 are blown and enter the interior of the return box 300. At the same time, the cylinder 401 is turned on to reciprocate, thereby driving the piston plate 404 to reciprocate inside the pressure shell 403, so that the moisture in the water tank 400 continuously enters the interior of the water pipe 406 and is discharged to the interior of the return box 300 to moisten the material entering the return box 300. At the same time, the second fan 305 is turned on to fill the interior of the multiple air pipes 306 with air to accelerate the flowing gas in the return chamber 304, and then the gas will push The inclined plate 308 moves to discharge the fine materials to the top of the second screening net 206. At the same time, the receiving pipe 309 will drive the second staggered plate 313 to contact the discharge pipe 311 and thus open it. Then the contact piece 314 will contact the first staggered plate 312 to open the discharge pipe 311, so that the receiving pipe 309 and the discharge pipe 311 are connected to each other, so as to facilitate the discharge of starch in the starch box 310 to the top of the second screening net 206 and adhere to the moistened fine materials. Then, it passes through the second screening net 206 again and rolls on the top of the rolling plate 303 to be formed, and then is discharged through the third screening net 409. At the same time, the water in the pressure shell 403 will push the spring piston rod 408 downward when passing through the water pipe 406, so that the third screening net 409 moves, thereby forming a vibration to improve its passing efficiency.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feed crushing and screening device, comprising a crushing and screening box (100) and a rotor hammer (107) arranged inside the crushing and screening box for crushing livestock feed, and a screen (108) arranged inside the crushing and screening box (100) and adapted to the rotor hammer (107), characterized in that: Also includes: A conveyor belt (200) is arranged inside the crushing and screening box (100) and located on one side of the screen (108); a first screening screen (203) for screening livestock feed is arranged inside the crushing and screening box (100); and a reshaping component for conveying larger livestock feed is arranged on the outer surface of the conveyor belt (200); A reflux box (300) is arranged inside the crushing and screening box (100) and is used to recover undersized livestock feed; a starch box (310) for storing starch is provided inside the crushing and screening box (100); a discharge assembly for discharging starch from the starch box (310) is provided inside the crushing and screening box (100); a rolling plate (303) for guiding livestock feed is fixedly connected to the top of the reflux box (300); A water tank (400) is arranged inside the crushing and screening box (100) and is used to store water. The bottom of the water tank (400) is connected to a pressure shell (403), and one end of the pressure shell (403) is connected to a water pipe (406) connected to the return box (300). A drainage component is arranged inside the pressure shell (403).

2. A feed crushing and screening device according to claim 1, characterized in that: The reshaping component comprises a plurality of connecting rubber sheets (202) fixedly connected to the outer surface of the conveyor belt (200); a hook sheet (208) is fixedly connected to one end of the screen (108); an inclined sheet (207) is fixedly connected to one end of each of the connecting rubber sheets (202); a plurality of pulleys (201) are rotatably connected to the inside of the crushing and screening box (100); the conveyor belt (200) is sleeved on the outer surfaces of the plurality of pulleys (201); and a servo motor (209) for driving the pulleys (201) to rotate is fixedly connected to one end of the crushing and screening box (100).

3. A feed crushing and screening device according to claim 2, characterized in that: A second screening net (206) is arranged inside the crushing and screening box (100); a plurality of connecting slide bars (204) are commonly connected between the first screening net (203) and the second screening net (206); the plurality of connecting slide bars (204) are all slidably connected to the crushing and screening box (100); springs (205) for returning the connecting slide bars (204) are sleeved on the outer surfaces of the connecting slide bars (204); and the plurality of conveyor belts (200) can all come into contact with the first screening net (203).

4. A feed crushing and screening device according to claim 1, characterized in that: The bottom of the crushing and screening box (100) is fixedly connected to a discharge port (102), the bottom of the discharge port (102) is fixedly connected to a first fan (301), the output ends of the first fan (301) are fixedly connected to an air shell (302), a return cavity (304) is provided inside the return box (300), the bottom of the return box (300) is fixedly connected to a second fan (305), and the output end of the second fan (305) is fixedly connected to a plurality of air pipes (306) capable of guiding air into the return cavity (304).

5. A feed crushing and screening device according to claim 4, characterized in that: The discharge assembly comprises an inclined plate (308) rotatably connected to the top of the reflux box (300), one side of the inclined plate (308) is connected to a plurality of material receiving pipes (309), the bottom of the starch box (310) is connected to a plurality of discharge pipes (311), the interiors of the plurality of discharge pipes (311) are rotatably connected to a plurality of first staggered plates (312), the tops of the plurality of material receiving pipes (309) are rotatably connected to a plurality of second staggered plates (313), and the tops of the plurality of second staggered plates (313) are fixedly connected to a resistance piece (314) that can resist the first staggered plate (312).

6. A feed crushing and screening device according to claim 1, characterized in that: The drainage assembly comprises a piston plate (404) slidably connected to the interior of the pressure shell (403), and the piston plate (404) is adapted to the interior of the pressure shell (403); a cylinder (401) is fixedly connected to the top of the pressure shell (403); an output end of the cylinder (401) is fixedly connected to a connecting rod (402) fixedly connected to the piston plate (404); and a tension spring (405) is sleeved on the outer surface of the connecting rod (402).

7. A feed crushing and screening device according to claim 6, characterized in that: The bottom of the pressure shell (403) is connected to an air cylinder (407), the bottom of the air cylinder (407) is slidably connected to a spring piston rod (408) adapted thereto, the bottom of the spring piston rod (408) is rotatably connected to a third screening net (409), and the bottom of the third screening net (409) is rotatably connected to the top of the rolling plate (303).

8. The feed crushing and screening device according to claim 1, characterized in that: A merging plate (307) is fixedly connected inside the crushing and screening box (100), and the top of the water tank (400) is fixedly connected to the bottom of the merging plate (307).

9. A feed crushing and screening device according to claim 1, characterized in that: A drive motor (104) is fixedly connected to one side of the crushing and screening box (100), a driving wheel (105) is fixedly connected to the output end of the driving motor (104), and a driven wheel (106) fixedly connected to a rotor hammer (107) is rotatably connected to one end of the crushing and screening box (100), and the driven wheel (106) is connected to the driving wheel (105) by a belt.

10. A feed crushing and screening device according to claim 1, characterized in that: The top of the crushing and screening box (100) is connected to a feed port (101) for conveying materials, a dryer (109) is fixedly connected to the inside of the feed port (101), and the output end of the dryer (109) is connected to a first air outlet (110).

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