A double coating processing device for compound feed additives

Abstract

The present invention relates to the field of feed processing technology, and specifically to a double coating processing device for compound feed additives, including a coating box, a feeding assembly, the feeding assembly is arranged above one end of the coating box, the feeding assembly includes a loading module and a quantitative module, the loading module is used to add and load the compound feed additive, and the quantitative module is used to quantitatively discharge the compound feed additive; a heat-sealing screening assembly, the heat-sealing screening assembly is arranged below the other end of the coating box, and the heat-sealing screening assembly is used to further heat-seal and wrap the preliminarily coated compound feed additive and grade and screen the heat-sealed and wrapped compound feed additive. Compared with the prior art, the present application is provided with a heat-sealing screening assembly to ensure that the material is heated evenly, avoid accumulation and blockage, and effectively prevent particles from getting stuck during the screening process. In addition, the hot air of the hot air blower heat-seals the turned material through the air inlet channel and the air outlet, ensuring the uniformity of the coating.

Description

Technical Field

[0001] The invention relates to the technical field of feed processing, in particular to a double-coating processing device for compound feed additives. Background Art

[0002] Compound feed additives are feed additives that are mixed with multiple functional ingredients and are designed to improve animal feeding results, improve nutritional structure, enhance immunity and promote growth. These ingredients usually include vitamins, minerals, amino acids, probiotics, enzyme preparations and other active substances. In the process of feed production and animal breeding, the use of compound feed additives can effectively improve the nutritional value of feed, increase feed utilization, reduce feeding costs, and promote animal health and production performance. Double coating processing is to protect the active ingredients of feed additives from the influence of the external environment, such as oxygen, moisture, pH, etc. during transportation, storage and feeding.

[0003] In the prior art, a Chinese patent document with publication number CN217725454U proposes a novel feed additive powdering and granulating coating machine, which solves the problem that the convenience of the existing powdering and granulating coating machine in discharging needs to be improved by setting a powdering and granulating coating machine, a discharging hopper, an adjusting hopper, a movable plate, a support rod, a tough connecting piece, an easily adjustable bolt, an extension hopper, a limit block, a tightening spring piece and a friction block. Since the discharging hopper of the existing powdering and granulating coating machine is fixed and cannot be effectively adjusted according to the user's discharging angle and length, it is not conducive to the user to discharge uniformly during discharging, which reduces the convenience of the user during discharging. It has the advantage of easy adjustment of discharging and improves the use However, consistent with the traditional method, in the traditional double coating process of compound feed additives, after the initial coating, the outer coating of the compound feed additives often cannot be tightly attached to the surface of the feed particles, resulting in more gaps between the compound feed additives and the outer coating. This defect not only affects the sealing of the coating, but also may lead to poor effect of the coating material. In addition, due to the different density and combination of feed additives, the coating effect of each quantitative coating often presents an inconsistent state, which is difficult to meet high-standard production requirements. Therefore, the present application discloses a double coating processing device for compound feed additives to meet the tightness of compound feed additives during coating. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a double coating processing device for compound feed additives to solve the problem that after the initial coating, the outer coating of the compound feed additive often cannot be tightly attached to the surface of the feed particles, resulting in a large number of gaps between the compound feed additives.

[0005] Based on the above purpose, the present invention provides a double coating processing device for compound feed additives, including a coating box, a conveying shaft is rotatably installed on one side of the coating box, the outer surface of the conveying shaft is sleeved with a film coating body, two tensioning and positioning rollers are respectively arranged on the side of the coating box close to the conveying shaft, the film coating body is arranged by winding the two tensioning and positioning rollers in sequence, one end of the conveying shaft is fixedly connected to the output end of an external motor, the top surface of the coating box is arranged in an inclined shape, and two guide forming plates are arranged on the top surface of the coating box close to the conveying shaft. The two guide forming plates are used to guide the film coating body to be formed. A mounting plate is fixedly installed on one side of the top surface, a rotating motor is provided on one side of the top of the mounting plate, a first meshing gear and a second meshing gear are rotatably installed on the other side of the top of the mounting plate, a transmission belt is provided between the first meshing gear and the second meshing gear, a tensioning wheel is fixedly connected to the bottom of the first meshing gear and the second meshing gear, and two groups of tensioning wheels are used to pull the film coating body to move, two cylinders are movably installed on one side of the top surface of the coating box away from the coating box, and a heat sealing block is fixedly connected to the telescopic ends of the two cylinders, and the heat sealing block is used to perform preliminary heat sealing and cutting on the film coating body;

[0006] A feeding assembly, the feeding assembly is arranged above one end of the coating box, the feeding assembly comprises a feeding module and a quantitative module, the feeding module is used to add and feed the compound feed additive, and the quantitative module is used to quantitatively discharge the compound feed additive;

[0007] A heat-sealing screening component is arranged below the other end of the coating box, and is used for further heat-sealing and wrapping the preliminarily coated compound feed additive and for grading and screening the heat-sealed and wrapped compound feed additive.

[0008] Preferably, the loading module includes an extension plate fixedly mounted on one side of the clothing box, a mounting frame is fixedly mounted on the top of the extension plate, a positioning frame is arranged on the top of the mounting frame, a feed hopper is arranged on the top of the positioning frame, a discharge hopper is arranged at the bottom of the feed hopper, four first return springs are respectively fixedly mounted on the middle part of the positioning frame, the other ends of the four first return springs are commonly fixedly connected to a movable plate, the top of the movable plate is fixedly connected to the bottom of the discharge hopper, a fixed plate is also fixedly mounted on one side of the mounting frame, and a discharge pipe for unloading is arranged in the middle of the fixed plate.

[0009] Preferably, a servo motor is provided on one side of the mounting frame close to the fixed plate, a fixed disk is fixedly installed on one side of the positioning frame, a rotating disk is rotatably installed above the fixed disk, the middle part of the rotating disk is sleeved on the output end of the servo motor, a plurality of quantitative channels are circumferentially arranged between the servo motor and the fixed disk, and the quantitative channels penetrate the rotating disk, the bottom of the quantitative channel is fitted with the top of the fixed disk, and a drop port adapted to the discharge pipe is provided on one side of the fixed disk close to the discharge pipe.

[0010] Preferably, the quantitative module includes a rotating gear sleeved on the output shaft of the servo motor, three rotating rods are rotatably installed on the top surface of the rotating disk around the rotating gear, positioning gears are fixedly connected above the three rotating rods, and several positioning gears are meshed with the rotating gear. A rotating sleeve is also rotatably installed on the outer side of the three positioning gears, and several teeth are arranged on the inner side of the rotating sleeve to mesh with the three positioning gears. Several scrapers are arranged on the outer surface of the rotating sleeve, and the several scrapers are used to stir the compound feed additives inside the rotating disk and scrape the compound feed additives into the quantitative channel.

[0011] Preferably, a positioning block is fixedly installed below the discharging hopper near the rotating disk, the positioning block is arranged in an arc shape, and an inclined positioning groove is provided on one side of the positioning block near the rotating disk. A fixing rod is fixedly installed on one side of the top surface of the rotating sleeve, and a positioning rod adapted to the positioning groove is fixedly installed on one side of the fixing rod.

[0012] Preferably, the heat-sealing screening assembly includes a screening hot melt box arranged on one side of the coating box, a feed port is arranged on the top of the screening hot melt box, and the feed port corresponds to the discharge position on the coating box, and three sieve plates are movably connected in sequence from top to bottom inside the screening hot melt box, and screening holes are provided on the three sieve plates, and the screening holes of the three sieve plates decrease in sequence from top to bottom, and a discharge port is provided on the upper side of the three sieve plates away from the feed port, and a discharge port is also provided on the lower side of the interior of the coating box, wherein a first discharge guide plate inclined downward is provided on one side of the discharge port located at the top, and a second discharge guide plate is provided on one side of the other three discharge ports.

[0013] Preferably, the sieve plate is arranged in a double layer, and a plurality of transverse and longitudinal angle steels are arranged between the two layers of the sieve plates for support, and the plurality of transverse and longitudinal angle steels divide the sieve plates on both sides into a plurality of screening compartments, and a plurality of steel balls are movably placed inside the plurality of screening compartments.

[0014] Preferably, a plurality of groups of slide grooves are provided on both sides of the interior of the sub-screening hot melt box, a sliding plate is slidably installed inside each group of the slide grooves, a power box is provided on one side of the sub-screening hot melt box, an air inlet channel is horizontally slidably installed inside the power box, one side of several of the sliding plates are connected with the air inlet channel, a forward and reverse motor is fixedly installed on one side of the inner bottom of the power box, a screw rod is fixedly connected to the output end of the forward and reverse motor, the bottom of the air inlet channel is threadedly connected to the screw rod, a hot air blower is also fixedly installed on one side of the outside of the power box, the air outlet of the hot air blower is provided with a bellows connected with the air inlet channel, a toothed material turning hot melt plate is fixedly installed under the sliding plate, and several air outlets are provided at the bottom of several of the material turning hot melt plates, a heating plate is provided on the top of the sieve plate, and the heating plate is electrically heated.

[0015] Preferably, clamping plates are fixedly installed on the bottom of both sides of the three sieve plates, and the interior of the sub-screening hot melt box is provided with clamping grooves adapted to the clamping plates. The clamping grooves are opened in a T-shape, and the bottom surface of the clamping grooves passes through the slide groove setting below. A number of second return springs are equidistantly arranged on the top of the clamping plates, and the number of second return springs are fixedly connected to the inner upper end of the clamping grooves.

[0016] Preferably, a plurality of trapezoidal first vibration blocks are equidistantly arranged at the bottom of the card plate, auxiliary plates parallel to the card plate are arranged on both sides of the plurality of sliding plates, and a plurality of second vibration blocks adapted to the first vibration blocks are arranged on the top of the auxiliary plates.

[0017] Beneficial effects of the present invention:

[0018] 1. This kind of double coating processing device for compound feed additives is equipped with a heat-sealing screening component, which significantly improves the processing quality and efficiency of compound feed additives through efficient screening and heat-sealing functions. The multi-layer screen plates enable the particles to be screened step by step, and the larger particles are discharged in time, while the smaller particles continue to be separated during the screening process to ensure uniform distribution of the materials. The heating plate provides continuous heating for the materials on the screen plate, promotes the fusion of the coating materials, and enhances the sealing and stability of the coating. The sliding plate not only drives the turning hot melting plate to turn up and down to ensure uniform heating of the materials and avoid accumulation and blockage, but also effectively prevents the particles from getting stuck during the screening process. In addition, the hot air from the hot air blower heat-seals the turned materials through the air inlet channel and the air outlet to ensure the uniformity of the coating.

[0019] 2. This kind of composite feed additive double coating processing device is provided with a first vibration block, a second vibration block and a steel ball on the heat-sealed screening component. When the forward and reverse motors are started, the screw rod is driven to rotate. The screw rod is connected by a thread so that the air inlet channel drives the sliding plate to slide along the inside of the screening hot melt box during the horizontal sliding process. The movement of the sliding plate directly acts on the auxiliary plates on both sides thereof, and drives the second vibration block fixed thereon through the auxiliary plates. During the sliding process, the second vibration block gradually squeezes and interacts with the first vibration block to generate a continuous impact force. Due to the squeezing and releasing of the vibration block, the card plate installed in the card slot is subjected to the squeezing force and the reaction force, thereby generating a jump in the T-shaped card slot. This jump It will be transmitted along the pallet to the double-layer screen plate fixed on the pallet, causing the screen plate to vibrate periodically. At the same time, the vibration of the screen plate will drive the steel balls installed in the screening compartment to jump, and the steel balls will continuously hit the surface of the screen plate as the screen plate vibrates. The jumping and knocking of the steel balls not only enhance the vibration effect of the screen plate, but also self-clean the screening holes to prevent materials from being blocked in the screening holes, ensuring that the materials can smoothly pass through the screen holes for screening. During the whole process, the vibration frequency and intensity of the screen plate are fully controlled to ensure that the materials are evenly screened and to avoid blockage or accumulation of materials when the screen plate works for a long time. The screened materials are discharged smoothly through different discharge ports according to their particle size, and the screening process is automated and efficient.

[0020] 3. This kind of double coating processing device for compound feed additives is provided with a feeding component. The close fit between the quantitative channel and the fixed plate ensures that the material enters the discharge pipe smoothly at the right time. The cooperation of the rotating gear, the positioning gear and the scraper in the quantitative module effectively stirs and scrapes the compound feed additive, so that the material is evenly distributed to prevent agglomeration or accumulation. The positioning block and the inclined positioning groove ensure the flexibility of the discharge hopper during the discharge process. When the positioning rod slides into the positioning groove, the discharge hopper can be pulled downward to achieve effective discharge; and after separation, it can quickly return to its position under the action of the reset spring to avoid material accumulation and keep the discharge unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a second viewing angle;

[0024] Figure 3 It is a schematic diagram of the local structure of the coating box of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the feed assembly of the present invention;

[0026] Figure 5 It is a schematic diagram of the partial structure of the feeding assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the planar structure of the feed assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the heat-sealing screening assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the planar structure of the heat-sealing screening assembly of the present invention;

[0030] Fig. 9 This is a schematic diagram of the internal structure of the heat-sealing screening assembly of the present invention;

[0031] Fig.10 It is a schematic diagram of the sieve plate structure of the present invention;

[0032] Fig.11 For the present invention Fig.10 Enlarged structural diagram at A in the middle.

[0033] The markings in the figure are:

[0034] 1. Coating box; 2. Conveying shaft; 3. Tensioning and positioning roller; 4. Film coating body; 5. Guide forming plate; 6. Mounting plate; 7. Rotating motor; 8. First meshing gear; 9. Second meshing gear; 10. Driving belt; 11. Tension wheel; 12. Cylinder; 13. Heat sealing block; 14. Extension plate; 15. Positioning frame; 16. Feed hopper; 17. Discharge hopper; 18. Movable plate; 19. First return spring; 20. Servo motor; 21. Fixed plate; 22. Rotating plate; 23. Quantitative channel; 24. Fixed plate; 25. Discharge pipe; 26. Rotating gear; 27. Rotating rod; 28. Positioning gear; 2 9. Rotating sleeve; 30. Scraper; 31. Positioning block; 32. Positioning groove; 33. Fixing rod; 34. Positioning rod; 35. Screening hot melt box; 36. Feed inlet; 37. Discharge outlet; 38. First discharge guide plate; 39. Second discharge guide plate; 40. Sieve plate; 41. Heating plate; 42. Steel ball; 43. Slide; 44. Power box; 45. Hot air blower; 46. Bellows; 47. Air inlet channel; 48. Forward and reverse motor; 49. Screw; 50. Sliding plate; 51. Flipping hot melt plate; 52. Card plate; 53. First vibration block; 54. Second return spring; 55. Auxiliary plate; 56. Second vibration block. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0036] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] like Figures 1 to 11 As shown, a double coating processing device for compound feed additives comprises a coating box 1, a conveying shaft 2 is rotatably installed on one side of the coating box 1, a film coating body 4 is sleeved on the outer surface of the conveying shaft 2, two tensioning and positioning rollers 3 are respectively arranged on the side of the coating box 1 close to the conveying shaft 2, the film coating body 4 is arranged by winding the two tensioning and positioning rollers 3 in sequence, one end of the conveying shaft 2 is fixedly connected to the output end of an external motor, the top surface of the coating box 1 is arranged in an inclined shape, two guide forming plates 5 are arranged on the side of the top surface of the coating box 1 close to the conveying shaft 2, and the two guide forming plates 5 are used to guide the film coating body 4 to be formed, a mounting plate 6 is fixedly installed on one side of the top surface of the coating box 1, a rotating motor 7 is arranged on one side of the top of the mounting plate 6, a first meshing gear 8 and a second meshing gear 9 are rotatably installed on the other side of the top of the mounting plate 6, a transmission belt 10 is arranged between the first meshing gear 8 and the second meshing gear 9, The bottom of the first meshing gear 8 and the bottom of the second meshing gear 9 are both fixedly connected with a tension wheel 11, and the two sets of tension wheels 11 are used to pull the film coating body 4 to move. Two cylinders 12 are movably installed on the side of the top surface of the coating box 1 away from the coating box 1, and the telescopic ends of the two cylinders 12 are commonly fixedly connected with a heat sealing block 13, and the heat sealing block 13 is used to perform preliminary heat sealing and cutting on the film coating body 4; a feeding assembly, the feeding assembly is arranged above one end of the coating box 1, the feeding assembly includes a feeding module and a quantitative module, the feeding module is used to add and feed the compound feed additive, and the quantitative module is used to quantitatively discharge the compound feed additive; a heat sealing screening assembly, the heat sealing screening assembly is arranged below the other end of the coating box 1, and the heat sealing screening assembly is used to further heat seal the preliminarily coated compound feed additive and grade and screen the heat-sealed compound feed additive;

[0038] The compound feed additive is first loaded through the loading module and unloaded into the coating box 1 through the quantitative module. The film coating body 4 is driven by the conveying shaft 2 and is formed by two tensioning positioning rollers 3 and two guide forming plates 5 to be in a packaged coating state. The movement of the film coating body 4 is driven by a rotating motor 7 installed on the mounting plate 6, and the film coating body 4 is driven to move through the first meshing gear 8, the second meshing gear 9 and the transmission belt 10, and the film coating is kept tight by two sets of tension wheels 11. After the wrapping is completed, the cylinder 12 pushes the heat sealing block 13 to perform preliminary heat sealing and cutting on the wrapped feed additive. After the preliminary heat sealing, the feed passes through The heat-sealing and screening components are used for further wrapping and grading screening to ensure the sealing of the double coating and the quality of packaging. The feeding component is combined with the loading module and the quantitative module to ensure the accurate loading and quantitative unloading of compound feed additives, avoiding material waste or shortage and improving production efficiency. The coating process achieves the effect of double coating through preliminary heat sealing and further heat sealing treatment, improves the protective performance of feed additives, extends its shelf life, and enhances its resistance to the external environment. The heat-sealing and screening components can screen and grade the coated feed additives to ensure that feeds of different sizes and qualities are separated, thereby ensuring product consistency and quality.

[0039] like Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, the feeding module includes an extension plate 14 fixedly mounted on one side of the clothing box 1, a mounting frame is fixedly mounted on the top of the extension plate 14, a positioning frame 15 is arranged on the top of the mounting frame, a feed hopper 16 is arranged on the top of the positioning frame 15, a discharge hopper 17 is arranged at the bottom of the feed hopper 16, four first return springs 19 are respectively fixedly mounted on the middle of the positioning frame 15, the other ends of the four first return springs 19 are commonly fixedly connected with a movable plate 18, the top of the movable plate 18 is fixedly connected to the bottom of the discharge hopper 17, a fixed plate 24 is also fixedly mounted on one side of the mounting frame, and a useful A discharge pipe 25 for unloading materials is provided with a servo motor 20 on one side of the mounting frame close to the fixed plate 24, a fixed disk 21 is fixedly installed on one side of the positioning frame 15, a rotating disk 22 is rotatably installed above the fixed disk 21, and the middle part of the rotating disk 22 is sleeved on the output end of the servo motor 20, and a plurality of quantitative channels 23 are arranged circumferentially between the servo motor 20 and the fixed disk 21, and the quantitative channels 23 are arranged through the rotating disk 22, and the bottom of the quantitative channels 23 is fitted with the top of the fixed disk 21, and a drop port adapted to the discharge pipe 25 is opened on one side of the fixed disk 21 close to the discharge pipe 25;

[0040] The feed additive is first put into the feed hopper 16, and flows into the positioning frame 15 from the bottom of the feed hopper 16 through the discharge hopper 17. The connection between the movable plate 18 and the discharge hopper 17 ensures the smooth entry of the material. The servo motor 20 drives the rotating disk 22 to drive the material to be measured through the quantitative channel 23. At the same time, the quantitative channel 23 fits the top of the fixed disk 21. The servo motor 20 accurately controls the rotation angle of the rotating disk 22, so that the amount of each discharge is accurately sent to the discharge pipe 25 below through the quantitative channel 23. When the quantitative channel 23 is aligned with the discharge port, the material smoothly enters the discharge pipe 25 from the discharge port to complete the discharge process;

[0041] The quantitative module includes a rotating gear 26 sleeved on the output shaft of the servo motor 20, three rotating rods 27 are rotatably mounted on the top surface of the rotating disk 22 around the rotating gear 26, and positioning gears 28 are fixedly connected to the tops of the three rotating rods 27. The positioning gears 28 are all meshed with the rotating gear 26. A rotating sleeve 29 is also rotatably mounted on the outer sides of the three positioning gears 28. The inner side of the rotating sleeve 29 is provided with a plurality of teeth meshed with the three positioning gears 28. The outer surface of the rotating sleeve 29 is provided with a plurality of scrapers 30, and the plurality of scrapers 30 are used to stir the compound feed additives inside the rotating disk 22 and scrape the compound feed additives into the quantitative channel 23;

[0042] When the servo motor 20 drives its output shaft to rotate, it drives the rotating gear 26 sleeved thereon to rotate. The rotating gear 26 drives the three positioning gears 28 to rotate by meshing with the positioning gear 28. The positioning gear 28 further drives the rotating sleeve 29 on the outside thereof to rotate in the opposite direction. The teeth on the inside of the rotating sleeve 29 mesh with the positioning gear 28, so that the scraper 30 on the outer surface of the rotating sleeve 29 starts to rotate. The scraper 30 stirs the compound feed additive and scrapes it into the quantitative channel 23 to ensure that the material enters the channel evenly.

[0043] A positioning block 31 is fixedly installed below the discharge hopper 17 near the rotating disk 22. The positioning block 31 is arranged in an arc shape. An inclined positioning groove 32 is provided on one side of the positioning block 31 near the rotating disk 22. A fixing rod 33 is fixedly installed on one side of the top surface of the rotating sleeve 29. A positioning rod 34 adapted to the positioning groove 32 is fixedly installed on one side of the fixing rod 33.

[0044] During the reverse rotation of the rotating sleeve 29, the fixing rod 33 drives the positioning rod 34 to slide into the positioning groove 32. At this time, the positioning block 31 is pulled downward by the inclination angle of the positioning groove 32, and the discharge hopper 17 is also pulled downward. When the positioning rod 34 disengages from the positioning groove 32, the discharge hopper 17 is reset under the action of the first reset spring 19, and bounces a few times to prevent material accumulation, thereby ensuring smooth material discharge. At the same time, during the entire operation, the reverse rotation and deceleration design of the rotating sleeve 29 ensure the accuracy and stability of quantitative material discharge.

[0045] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 As shown, the heat-sealing screening assembly includes a screening hot-melt box 35 arranged on one side of the coating box 1, and a feed port 36 is arranged on the top of the screening hot-melt box 35, and the feed port 36 corresponds to the discharge position on the coating box 1, and three sieve plates 40 are movably connected in sequence from top to bottom inside the screening hot-melt box 35, and the three sieve plates 40 are all provided with screening holes, and the screening holes of the three sieve plates 40 are successively reduced from top to bottom, and a discharge port 37 is provided on the upper side of the three sieve plates 40 away from the feed port 36, and a discharge port 37 is also provided on the bottom side of the interior of the coating box 1, wherein a first discharge guide plate 38 inclined downward is provided on one side of the discharge port 37 located at the top, and a second discharge guide plate 39 is respectively provided on one side of the other three discharge ports 37, and a plurality of groups of slide grooves 43 are provided on both sides of the interior of the screening hot-melt box 35, each of which has a plurality of slide grooves 43 ... A sliding plate 50 is slidably installed inside the group chute 43, a power box 44 is provided on one side of the sub-screening hot melt box 35, an air inlet channel 47 is horizontally slidably installed inside the power box 44, one side of several sliding plates 50 is connected with the air inlet channel 47, a forward and reverse motor 48 is fixedly installed on one side of the inner bottom of the power box 44, a screw rod 49 is fixedly connected to the output end of the forward and reverse motor 48, the bottom of the air inlet channel 47 is threadedly connected with the screw rod 49, a hot air blower 45 is also fixedly installed on one side of the outer side of the power box 44, a bellows 46 is provided at the air outlet of the hot air blower 45 and is connected with the air inlet channel 47, a toothed material turning hot melt plate 51 is fixedly installed below the sliding plate 50, and several air outlets are provided at the bottom of several material turning hot melt plates 51, a heating plate 41 is provided on the top of the sieve plate 40, and the heating plate 41 is electrically heated;

[0046] The compound feed additive enters the feed inlet 36 of the screening hot melt box 35 from the discharge port 37 of the coating box 1, and falls into the first sieve plate 40. The particles are preliminarily screened through the screening holes. The larger particles are discharged through the first discharge guide plate 38, and the smaller particles fall into the second sieve plate 40 through the screening holes for further screening. The screening holes are gradually reduced to further separate particles of different sizes. The particles are discharged in sequence through the guide plate and the discharge port 37. The finer particles pass through the bottom screening holes and are discharged from the corresponding discharge port 37. During the screening process, the heating plate 41 heats the material on the sieve plate 40, so that the coating material The material is further fused, and the sliding plate 50 slides driven by the power box 44, driving the material turning hot melting plate 51 to turn the material up and down, ensuring that the material is fully heated and avoiding accumulation and blockage. At the same time, the hot air blower 45 sends hot air into the air inlet channel 47 through the bellows 46, and then performs heat sealing when turning the material through the air outlet, so that the material is continuously treated with hot air during the screening and moving process, ensuring the uniformity of the coating and the heat sealing effect, and the sliding plate 50 drives the screen plate 40 to turn the material to prevent the particles from piling up or getting stuck during the screening process, effectively avoiding material blockage, and ensuring the smooth screening and coating treatment of the material.

[0047] like Figure 8 , Fig.10 , Fig.11 As shown, the sieve plate 40 is double-layered, and a plurality of transverse and longitudinal angle steels are arranged between the two layers of sieve plates 40 for support, and the plurality of transverse and longitudinal angle steels divide the sieve plates 40 on both sides into a plurality of screening compartments, and a plurality of steel balls 42 are movably placed inside the plurality of screening compartments, and a clamping plate 52 is fixedly installed at the bottom of both sides of the three sieve plates 40, and a clamping groove adapted to the clamping plate 52 is provided inside the screening hot melt box 35, and the clamping groove is opened in a T-shape, and the bottom surface of the clamping groove passes through the lower slide groove 43, and a plurality of second return springs 54 are arranged equidistantly on the top of the clamping plate 52, and the plurality of second return springs 54 are fixedly connected to the inner upper end of the clamping groove, and a plurality of trapezoidal first vibration blocks 53 are equidistantly arranged at the bottom of the clamping plate 52, and auxiliary plates 55 parallel to the clamping plate 52 are arranged on both sides of the plurality of sliding plates 50, and a plurality of second vibration blocks 56 adapted to the first vibration blocks 53 are arranged on the top of the auxiliary plate 55;

[0048] When the forward and reverse motor 48 is started, the screw rod 49 starts to rotate. The screw rod 49 is threadedly connected so that the air inlet channel 47 drives the sliding plate 50 to slide along the inside of the sub-screening hot melt box 35 during the horizontal sliding process. The movement of the sliding plate 50 directly acts on the auxiliary plates 55 on both sides thereof, and drives the second vibration block 56 fixed thereon through the auxiliary plates 55. During the sliding process, the second vibration block 56 gradually squeezes and interacts with the first vibration block 53 to generate a continuous impact force. Due to the squeezing and release of the vibration block, the card plate 52 installed in the card slot is subjected to the squeezing force and the reaction force, thereby generating a jump in the T-shaped card slot. This jump will be transmitted along the card plate 52 to the double-layer sieve plate 40 fixed on the card plate 52 , causing periodic vibration of the screen plate 40. At the same time, the vibration of the screen plate 40 will drive the steel balls 42 installed in the screening compartment to jump. The steel balls 42 continuously knock on the surface of the screen plate 40 as the screen plate 40 vibrates. The jumping and knocking of the steel balls 42 not only enhance the vibration effect of the screen plate 40, but also self-clean the screening holes to prevent materials from being blocked in the screening holes, ensuring that the materials can be smoothly screened through the screen holes. During the whole process, the vibration frequency and intensity of the screen plate 40 are fully controlled to ensure that the materials are evenly screened and to avoid blockage or accumulation of materials in the screen plate 40 when working for a long time. The screened materials are smoothly discharged through different discharge ports 37 according to their particle sizes, and the screening process is automated and efficient.

[0049] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0050] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double coating processing device for compound feed additives, characterized in that: include: A coating box (1), wherein a conveying shaft (2) is rotatably mounted on one side of the coating box (1), and a film coating body (4) is sleeved on the outer surface of the conveying shaft (2). Two tensioning and positioning rollers (3) are respectively arranged on the side of the coating box (1) close to the conveying shaft (2), and the film coating body (4) is arranged to be wound around the two tensioning and positioning rollers (3) in sequence. One end of the conveying shaft (2) is fixedly connected to the output end of an external motor. The top surface of the coating box (1) is arranged in an inclined shape. Two guide forming plates (5) are arranged on the side of the top surface of the coating box (1) close to the conveying shaft (2). The two guide forming plates (5) are used to guide the film coating body (4) to be formed. A mounting plate (6) is fixedly mounted on one side of the top surface of the coating box (1), and the mounting plate (6) A rotating motor (7) is arranged on one side of the top of the mounting plate (6); a first meshing gear (8) and a second meshing gear (9) are rotatably mounted on the other side of the top of the mounting plate (6); a transmission belt (10) is arranged between the first meshing gear (8) and the second meshing gear (9); the bottoms of the first meshing gear (8) and the second meshing gear (9) are fixedly connected with a tensioning wheel (11); two groups of the tensioning wheels (11) are used to pull the film coating body (4) to move; two cylinders (12) are movably mounted on one side of the top surface of the coating box (1) away from the coating box (1); the telescopic ends of the two cylinders (12) are fixedly connected with a heat sealing block (13); the heat sealing block (13) is used to perform preliminary heat sealing and cutting on the film coating body (4); A feeding assembly, the feeding assembly being arranged above one end of the coating box (1), the feeding assembly comprising a feeding module and a quantitative module, the feeding module being used for adding and feeding the compound feed additive, and the quantitative module being used for quantitatively discharging the compound feed additive; A heat-sealing screening component, the heat-sealing screening component is arranged below the other end of the coating box (1), and the heat-sealing screening component is used to further heat-seal and wrap the preliminarily coated compound feed additive and to grade and screen the heat-sealed and wrapped compound feed additive; The heat-sealing screening component comprises a screening hot-melt box (35) arranged on one side of the coating box (1); a feed port (36) is arranged on the top of the screening hot-melt box (35); the feed port (36) corresponds to a discharge position on the coating box (1); three screen plates (40) are movably connected in sequence from top to bottom inside the screening hot-melt box (35); screening holes are provided on the three screen plates (40); and the screening holes of the three screen plates (40) decrease in size from top to bottom; a discharge port (37) is provided on the top of the side of the three screen plates (40) away from the feed port (36); The bottom side of the coating box (1) is also provided with a discharge port (37), wherein a first discharge guide plate (38) inclined downward is provided on one side of the discharge port (37) at the top, and a second discharge guide plate (39) is provided on one side of the other three discharge ports (37). The sieve plate (40) is double-layered, and a plurality of transverse and longitudinal angle steels are provided between the two layers of the sieve plates (40) for support. The plurality of transverse and longitudinal angle steels divide the sieve plates (40) on both sides into a plurality of screening compartments, and a plurality of steel balls (42) are movably placed inside the plurality of screening compartments.

2. The double coating processing device for compound feed additives according to claim 1, characterized in that: The loading module comprises an extension plate (14) fixedly mounted on one side of the clothing box (1); a mounting frame is fixedly mounted on the top of the extension plate (14); a positioning frame (15) is arranged on the top of the mounting frame; a feed hopper (16) is arranged on the top of the positioning frame (15); a discharge hopper (17) is arranged on the bottom of the feed hopper (16); four first return springs (19) are respectively fixedly mounted on the middle of the positioning frame (15); the other ends of the four first return springs (19) are fixedly connected to a movable plate (18); the top of the movable plate (18) is fixedly connected to the bottom of the discharge hopper (17); a fixed plate (24) is also fixedly mounted on one side of the mounting frame; a discharge pipe (25) for unloading is arranged in the middle of the fixed plate (24).

3. The double coating processing device for compound feed additives according to claim 2, characterized in that: A servo motor (20) is arranged on one side of the mounting frame close to the fixed plate (24); a fixed disk (21) is fixedly mounted on one side of the positioning frame (15); a rotating disk (22) is rotatably mounted above the fixed disk (21); a middle portion of the rotating disk (22) is sleeved on the output end of the servo motor (20); a plurality of quantitative channels (23) are arranged circumferentially between the servo motor (20) and the fixed disk (21); the quantitative channels (23) penetrate the rotating disk (22); the bottom of the quantitative channel (23) is in contact with the top of the fixed disk (21); and a drop opening adapted to the discharge pipe (25) is provided on one side of the fixed disk (21) close to the discharge pipe (25).

4. The double coating processing device for compound feed additives according to claim 3, characterized in that: The quantitative module comprises a rotating gear (26) sleeved on the output shaft of the servo motor (20); three rotating rods (27) are rotatably mounted on the top surface of the rotating disk (22) around the rotating gear (26); positioning gears (28) are fixedly connected to the tops of the three rotating rods (27); a plurality of positioning gears (28) are meshed with the rotating gear (26); a rotating sleeve (29) is rotatably mounted on the outer sides of the three positioning gears (28); a plurality of teeth are arranged on the inner side of the rotating sleeve (29) to mesh with the three positioning gears (28); a plurality of scrapers (30) are arranged on the outer surface of the rotating sleeve (29); the plurality of scrapers (30) are used to stir the compound feed additive inside the rotating disk (22) and to scrape the compound feed additive into the quantitative channel (23).

5. The double coating processing device for compound feed additives according to claim 4, characterized in that: A positioning block (31) is fixedly mounted below the discharge hopper (17) near the rotating disk (22); the positioning block (31) is arranged in an arc shape; an inclined positioning groove (32) is provided on one side of the positioning block (31) near the rotating disk (22); a fixing rod (33) is fixedly mounted on one side of the top surface of the rotating sleeve (29); and a positioning rod (34) adapted to the positioning groove (32) is fixedly mounted on one side of the fixing rod (33).

6. The double coating processing device for compound feed additives according to claim 1, characterized in that: A plurality of groups of slide grooves (43) are provided on both sides of the interior of the sub-screening hot melt box (35), and a sliding plate (50) is slidably installed inside each group of the slide grooves (43). A power box (44) is provided on one side of the sub-screening hot melt box (35), and an air inlet channel (47) is horizontally slidably installed inside the power box (44). One side of the plurality of sliding plates (50) is connected to the air inlet channel (47), and a forward and reverse motor (48) is fixedly installed on one side of the bottom of the interior of the power box (44), and a screw rod ( 49), the bottom of the air inlet channel (47) is threadedly connected to the screw rod (49), a hot air blower (45) is fixedly installed on one side of the outside of the power box (44), the air outlet of the hot air blower (45) is provided with a bellows (46) connected to the air inlet channel (47), a toothed material turning hot melting plate (51) is fixedly installed below the sliding plate (50), and a plurality of the material turning hot melting plates (51) are provided with a plurality of air outlets at the bottom, and a heating plate (41) is provided on the top of the sieve plate (40), and the heating plate (41) is electrically heated.

7. The double coating processing device for compound feed additives according to claim 6, characterized in that: A clamping plate (52) is fixedly installed at the bottom of both sides of the three sieve plates (40), and a clamping groove adapted to the clamping plate (52) is opened inside the sub-screening hot melt box (35). The clamping groove is opened in a T-shape, and the bottom surface of the clamping groove passes through the slide groove (43) below. A plurality of second return springs (54) are arranged at equal intervals on the top of the clamping plate (52), and the plurality of second return springs (54) are fixedly connected to the inner upper end of the clamping groove.

8. The double coating processing device for compound feed additives according to claim 7, characterized in that: A plurality of trapezoidal first vibration blocks (53) are equidistantly arranged at the bottom of the clamping plate (52), auxiliary plates (55) parallel to the clamping plate (52) are arranged on both sides of the plurality of sliding plates (50), and a plurality of second vibration blocks (56) adapted to the first vibration blocks (53) are arranged on the top of the auxiliary plates (55).

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