A food powder coating conveyor line

Abstract

The present invention relates to the technical field of food conveyor lines, and more specifically, to a food powder coating conveyor line, comprising a first conveyor belt for conveying products to be coated with powder, and a second conveyor belt for conveying products coated with powder, a product conveying portion being provided between the first conveyor belt and the second conveyor belt, a vibrating powder sprinkling portion being provided in front of the product conveying portion for sprinkling powder onto the product, a powder atomizing portion being provided on one side of the vibrating powder sprinkling portion for atomizing powder on the product surface and the product conveying portion, and a powder reabsorption portion being provided on one side of the powder atomizing portion for reabsorbently sucking back excess powder on the product surface and within the powder atomizing portion. The present invention, through the product conveying portion, the vibrating powder sprinkling portion, the powder atomizing portion, and the powder reabsorption portion, in conjunction with the first conveyor belt and the second conveyor belt, can quickly complete the product powder sprinkling process, effectively reducing labor intensity and saving human resources.

Description

Technical Field

[0001] The present invention relates to the technical field of food conveyor lines, in particular to a food powder coating conveyor line. Background Art

[0002] In the current food processing industry, products are all coated with powder manually after forming, which has low labor efficiency, makes the labor intensity of the industry high, and wastes human resources, which in turn causes increased product costs and serious loss of human resources.

[0003] Existing powder spreading equipment cannot form a uniform layer of powder on the product surface, or the powder cannot effectively reabsorb polluted air and poses a potential safety hazard.

[0004] In order to reduce labor intensity, save human resources and eliminate potential dangers, a food powder coating conveyor line is urgently needed. Summary of the Invention

[0005] In response to the problems in the prior art, the present invention provides a food powder coating conveyor line, which can quickly complete the product powder coating processing work through a product conveying part, a vibrating powder sprinkling part, a powder atomization part, and a powder reabsorption part, in conjunction with a first conveyor belt and a second conveyor belt, effectively reducing labor intensity and saving human resources.

[0006] The technical solution adopted by the present invention to solve its technical problems is a food powder coating conveyor line, comprising a first conveyor belt for conveying products to be coated with powder, and a second conveyor belt for conveying products that have been coated with powder, a product conveying part is provided between the first conveyor belt and the second conveyor belt, a vibrating powder sprinkling part for sprinkling powder onto the product is provided in front of the product conveying part, a powder atomizing part for atomizing powder on the product surface and the product conveying part is provided on one side of the vibrating powder sprinkling part, and a powder reabsorption part for reabsorbent the excess powder on the product surface and in the powder atomizing part is provided on one side of the powder atomizing part.

[0007] Preferably, a chassis is provided on one side of the product conveying part, and the product conveying part includes a third conveyor belt installed on one side of the chassis, and a roller for driving the third conveyor belt to move and a guide roller for guiding the third conveyor belt are installed on the chassis. A collecting funnel connected to the chassis is provided below the third conveyor belt, and a scraper for cleaning the third conveyor belt is connected to the inner side of the collecting funnel. A powder collecting box assembly for collecting powder is provided below the collecting funnel, and a sorting mechanism for briquetting and sorting the powder is provided in the powder collecting box assembly.

[0008] Preferably, a bottom plate connected to the chassis is provided below the powder collecting box assembly, and the powder collecting box assembly includes a back plate, and side plates detachably connected to the bottom plate are provided on both sides of the back plate, and the back plate is connected to the side plates by a lock, and the sorting mechanism includes a pressing mechanism arranged between the two sets of side plates, and the pressing mechanism includes a horizontally arranged fourth conveyor belt, and a driving roller and a driven roller rotatably connected to the chassis are provided in the fourth conveyor belt, and the driving roller and the driven roller are driven by the fourth conveyor belt. One end of the driving roller is provided with a driving motor for driving the driving roller to rotate, and the driving motor is installed in the chassis, and several groups of positioning blocks are connected to the outer side of the fourth conveyor belt, and the positioning blocks are each provided with a slide groove, and a movable plate is slidably connected to the slide groove, and a support spring is connected between the bottom of the slide groove and the movable plate, and a wedge-shaped guide plate connected to the bottom plate is provided below the fourth conveyor belt, and the fourth conveyor belt pushes the powder from the thinner end of the guide plate to the thicker end through the positioning block and the movable plate to press the powder.

[0009] Preferably, the powder collecting box assembly further comprises a storage frame arranged between the two sets of side panels, the storage frame is fixedly connected to the back panel, and the upper portion of the storage frame and the side close to the fourth conveyor belt are both open.

[0010] Preferably, the storage frame is provided with pallets stacked up and down, and pull ropes are connected between adjacent pallets. A winding shaft is provided above the storage frame, and one end of the winding shaft is rotatably connected to the chassis, and the winding shaft is connected to the topmost pallet through a connecting rope. The pull rope and the connecting rope are both located on the side of the pallet close to the fourth conveyor belt, and at least two groups of sliders are connected to the side of the pallet close to the chassis, and the sliders are vertically slidably connected to the chassis, and the sliders are arranged on the side of the push plate close to the fourth conveyor belt. An opening corresponding to the stacked pallets is provided at the bottom of the side of the storage frame away from the back plate, and several groups of notches are distributed from top to bottom on the side of the storage frame away from the back plate, and the notches correspond to the position of the pallet after the winding shaft has completely wound up the connecting rope.

[0011] Preferably, the chassis is rotatably connected to a horizontally arranged driving rod, the driving rod is fixedly connected to a guide block, the back plate is connected to an internal threaded tube corresponding to the driving rod, the internal threaded tube is provided with a spiral guide groove corresponding to the guide block, the driving rod is connected to a driving pulley, one end of the winding shaft is provided with a driven pulley corresponding to the driving pulley, a one-way bearing is connected between the driven pulley and the winding shaft, the driving pulley and the driven pulley are transmitted by a transmission belt, the winding shaft and the driven pulley are connected with a torsion spring, and a limiting structure for locking the support plate is connected in the storage frame.

[0012] Preferably, the limiting structure includes an extrusion plate, which is located above the inner side of the opening, and the upper surface of the extrusion plate is in sliding contact with the inner wall of the opening. The extrusion plate is fixedly connected to the storage frame through a spring, and the pressing mechanism pushes the powder blocks into the storage frame and squeezes the extrusion plate to move, thereby unlocking the support plate at the bottom of the extrusion plate.

[0013] Preferably, the vibrating powder sprinkling part includes a vibrating powder sprinkling position bracket arranged on the product conveying part, the vibrating powder sprinkling position bracket is fixedly connected to the chassis, a vibrating powder sprinkling device is installed on the vibrating powder sprinkling position bracket, the vibrating powder sprinkling device is connected to a powder hopper, and the chassis is provided with an amplitude adjustment knob for adjusting the amplitude of the vibrating powder sprinkling device.

[0014] Preferably, one side of the vibrating powder sprinkling bracket is connected to an atomization and back-suction bracket, the powder atomization part includes an atomization nozzle capable of adjusting the atomization distance, the atomization nozzle is installed on the atomization and back-suction bracket, the chassis is provided with an atomization gas volume adjustment knob for adjusting the atomization gas volume of the atomization nozzle, and the atomization and back-suction bracket is provided with a back-suction powder pipe.

[0015] Preferably, the powder return suction part includes a powder removal filter arranged in the chassis, the powder removal filter is connected to the powder return suction pipe through a pipe, an explosion-proof motor is provided in the chassis, the output end of the explosion-proof motor is connected to the wind wheel, the wind wheel is connected to the powder removal filter, the chassis is provided with a dust removal, a powder removal collection box is provided under the powder removal filter, and a powder removal solenoid valve for cleaning the powder removal filter is installed in the chassis.

[0016] Beneficial effects of the present invention:

[0017] (1) The food powder coating conveyor line described in the present invention can quickly complete the product powder coating process through the product conveying part, the vibrating powder coating part, the powder atomization part, the powder reabsorption part, and the first conveyor belt and the second conveyor belt, thereby effectively reducing labor intensity and saving human resources.

[0018] (2) The food powder coating conveyor line described in the present invention can quickly compress and stack the powder scattered during the processing, thereby facilitating its transfer to a storage box and effectively reducing the subsequent powder flying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 It is a front structural schematic diagram of the present invention;

[0021] Figure 2 It is an axonometric view of the chassis of the present invention;

[0022] Figure 3 This is an axonometric view of the chassis of the present invention from another perspective;

[0023] Figure 4 It is a front view of the chassis of the present invention;

[0024] Figure 5 It is a rear view of the chassis of the present invention;

[0025] Figure 6 is an axonometric view of the powder collecting box assembly of the present invention;

[0026] Figure 7 for Figure 6 A magnified view of area A;

[0027] Figure 8 It is a cross-sectional view of the positioning block of the present invention;

[0028] Figure 9 is an axonometric view of the drive rod of the present invention;

[0029] In the figure: 1. First conveyor belt; 2. Second conveyor belt; 3. Chassis; 4. Third conveyor belt; 5. Roller; 6. Guide roller; 7. Back plate; 8. Side plate; 9. Fourth conveyor belt; 10. Driving roller; 11. Driven roller; 12. Positioning block; 13. Slide; 14. Movable plate; 15. Guide plate; 16. Storage frame; 17. Support plate; 18. Draw rope; 19. Reel; 20. Connecting rope; 21. Opening; 22. Notch; 23. Driving rod; 24. Guide block; 25. Internally threaded pipe; 26. Driving pulley; 27 , driven pulley; 28. One-way bearing; 29. Extrusion plate; 30. Vibrating powder spreading bracket; 31. Vibrating powder spreading device; 32. Powder hopper; 33. Amplitude adjustment knob; 34. Atomizing and back-suction bracket; 35. Atomizing nozzle; 36. Atomizing air volume adjustment knob; 37. Powder removal filter; 38. Explosion-proof motor; 39. Wind wheel; 40. Powder removal collection box; 41. Powder removal solenoid valve; 42. Back-suction powder pipe; 43. Aggregate funnel; 44. Torsion spring; 45. Slider; 46. Support spring; 47. Bottom plate; 48. Scraper rod. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] As an embodiment of the present invention, Figures 1 to 9As shown, the food powder coating conveyor line described in the present invention includes a first conveyor belt 1 for conveying products to be coated with powder, and a second conveyor belt 2 for conveying products that have been coated with powder. A product conveying part is provided between the first conveyor belt 1 and the second conveyor belt 2. A vibrating powder sprinkling part for sprinkling powder onto the product is provided in front of the product conveying part. A powder atomizing part for atomizing powder on the surface of the product and the product conveying part is provided on one side of the vibrating powder sprinkling part. A powder reabsorption part for aspirating excess powder on the surface of the product and in the powder atomizing part is provided on one side of the powder atomizing part.

[0032] During use, the product that needs to be coated with powder is conveyed by the first conveyor belt 1, and then the product is conveyed to the third conveyor belt 4. In the process of conveying the product by the third conveyor belt 4, the product is firstly powdered by the vibrating powder sprinkling part; then the powder on the surface of the product and the third conveyor belt 4 is atomized by the powder atomization part; after the product moves to the powder reabsorption part, the excess powder on the surface of the product and in the powder atomization part can be reabsorbed by the powder atomization part, and the product that has completed the powder coating process is conveyed to the second conveyor belt 2 through the third conveyor belt 4.

[0033] In order to ensure the operation of the product conveying part, as an embodiment of the present invention, a chassis 3 is provided on one side of the product conveying part, and the product conveying part includes a third conveyor belt 4 installed on one side of the chassis 3, and a roller 5 for driving the third conveyor belt 4 to move and a guide roller 6 for guiding the third conveyor belt 4 are installed on the chassis 3. A collecting funnel 43 connected to the chassis 3 is provided below the third conveyor belt 4, and a scraper 48 for cleaning the third conveyor belt 4 is connected to the inner side of the collecting funnel 43. A powder collecting box assembly for collecting powder is provided below the collecting funnel 43, and a sorting mechanism for briquetting and sorting the powder is provided in the powder collecting box assembly.

[0034] During use, the motor arranged in the chassis 3 can drive the roller 5 to rotate, thereby driving the third conveyor belt 4 to move, and the stability of the third conveyor belt 4 can be ensured by the guidance of the guide roller 6; during the operation of the third conveyor belt 4, the scraper rod 48 cleans the outside of the third conveyor belt 4, and the cleaned powder will fall into the powder collecting box assembly, and the powder will be pressed and stacked by the sorting mechanism; the collecting funnel 43 can collect the powder dropped from the product conveying part.

[0035] In order to facilitate the briquetting of powder by the finishing mechanism, as an embodiment of the present invention, a bottom plate 47 connected to the chassis 3 is provided below the powder collecting box assembly, and the powder collecting box assembly includes a back plate 7, and side plates 8 detachably connected to the bottom plate 47 are provided on both sides of the back plate 7. The back plate 7 is connected to the side plates 8 by a lock, and the finishing mechanism includes a briquetting mechanism arranged between the two groups of side plates 8, and the briquetting mechanism includes a horizontally arranged fourth conveyor belt 9, and a driving roller 10 and a driven roller 11 rotatably connected to the chassis 3 are provided in the fourth conveyor belt 9, and the driving roller 10 and the driven roller 11 are driven by the fourth conveyor belt. One end of the driving roller 10 is provided with a driving motor for driving the driving roller 10 to rotate, and the driving motor is installed in the chassis 3. Several groups of positioning blocks 12 are connected to the outside of the fourth conveyor belt 9, and the positioning blocks 12 are each provided with a slide groove 13. A movable plate 14 is slidably connected in the slide groove 13, and a support spring 46 is connected between the bottom of the slide groove 13 and the movable plate 14. A wedge-shaped guide plate 15 connected to the bottom plate 47 is provided under the fourth conveyor belt 9. The fourth conveyor belt 9 pushes the powder from the thinner end of the guide plate 15 to the thicker end through the positioning block 12 and the movable plate 14 to compress the powder.

[0036] During use, the powder that falls into the powder collecting box assembly will fall onto the guide plate 15, and the driving motor drives the driving roller 10 to rotate, thereby driving the fourth conveyor belt 9 to rotate. The fourth conveyor belt 9 drives the positioning block 12 and the movable plate 14 to rotate, thereby pushing the powder that falls on the guide plate 15 from the thinner end of the guide plate 15 to the thicker end. During the pushing process, the distance between the guide plate 15 and the fourth conveyor belt 9 is reduced, and the movable plate 14 moves into the chute 13, so that the powder is compressed into a block and moves to one side as the fourth conveyor belt 9 is conveyed. It should be pointed out that the upper surface of the guide plate 15 near one end of the storage frame 16 is horizontally arranged, which makes it easier for the briquetting mechanism to squeeze the powder into a block with a flat bottom, thereby facilitating its stacking. At the same time, it also makes it easier for the briquetting mechanism to convey the briquetting powder into the storage frame 16.

[0037] In order to facilitate the storage of the powder after briquetting, as an embodiment of the present invention, the powder collecting box assembly also includes a storage frame 16 arranged between the two sets of side panels 8, and the storage frame 16 is fixedly connected to the back panel 7. The upper part of the storage frame 16 and the side close to the fourth conveyor belt 9 are both open.

[0038] During use, the powder compressed into blocks will move toward one side of the storage frame 16 as it is transported by the fourth conveyor belt 9, and the storage frame 16 is open on one side close to the fourth conveyor belt 9, so that the compressed powder can be pushed into the storage frame 16. Subsequently, the user pulls the back plate 7 to pull out the powder stored in the storage frame 16, so as to facilitate subsequent processing.

[0039] In order to facilitate the stacking and storage of the powder after briquetting, as an embodiment of the present invention, the storage frame 16 is provided with upper and lower stacked pallets 17, and a pull rope 18 is connected between adjacent pallets 17. A reel 19 is provided above the storage frame 16, and one end of the reel 19 is rotatably connected to the chassis 3. The reel 19 is connected to the topmost pallet 17 through a connecting rope 20. The pull rope 18 and the connecting rope 20 are both located on the side of the pallet 17 close to the fourth conveyor belt 9. The side of the pallet 17 close to the chassis 3 is connected with at least two groups of sliders 45, and the slider 45 is vertically slidably connected to the chassis 3. The slider 45 is arranged on the side of the push plate close to the fourth conveyor belt 9. The bottom of the side of the storage frame 16 away from the back plate 7 is provided with an opening 21 corresponding to the stacked pallets 17, and the side of the storage frame 16 away from the back plate 7 is distributed with several groups of notches 22 from top to bottom, and the notches 22 correspond to the position of the pallet 17 after the reel 19 completely reels the connecting rope 20.

[0040] During use, the connecting rope 20 is wound up by the reel-in 19, and the pallets 17 can be pulled up one by one. After a sufficient amount of powder has been piled on the pallet 17, the pallet 17 is pulled up to put the next group of pallets 17 into use, so that the briquetted powder can be stacked up and placed in the storage frame 16; and, after the pallet 17 is fully unfolded and put into use, the user can move the storage frame together with the briquetted powder by moving the back plate 7. At this time, the pallet 17 passes through the slot 22, and the briquetted powder remains in the storage frame 16; it should be pointed out that the pull rope 18 and the connecting rope 20 are arranged on one side of the pallet 17, which can avoid hindering the movement of the pallet 17 in the slot 22; similarly, each group of pallets 17 is connected to at least two groups of sliders 45 to ensure that the pallet 17 is in a horizontal state during the movement of the pallet 17 by the pull rope 18 and the connecting rope 20, thereby ensuring the stability of the support of the pallet 17. It should be further explained that the slider 45 can ensure the stability of the vertical sliding of the slider 45 by installing a vertical slide rail on one side of the chassis 3.

[0041] In order to facilitate the automatic movement of the support plate 17, as an embodiment of the present invention, a horizontally arranged driving rod 23 is rotatably connected to the chassis 3, and a guide block 24 is fixedly connected to the driving rod 23. The back plate 7 is connected to an internal threaded tube 25 corresponding to the driving rod 23, and a spiral guide groove corresponding to the guide block 24 is provided in the internal threaded tube 25. The driving rod 23 is connected to a driving pulley 26, and one end of the winding shaft 19 is provided with a driven pulley 27 corresponding to the driving pulley 26. A one-way bearing 28 is connected between the driven pulley 27 and the winding shaft 19. The driving pulley 26 and the driven pulley 27 are driven by a transmission belt. A torsion spring 44 is connected between the winding shaft 19 and the driven pulley 27, and a limiting structure for locking the support plate 17 is connected to the storage frame 16.

[0042] During use, when the user inserts the powder collecting box assembly between the two sets of side plates 8, the internal threaded tube 25 will be sleeved on the driving rod 23, and the limiting structure will be stuck above the stacked supporting plates 17. The internal threaded tube 25 and the guide block 24 cooperate to rotate the driving rod 23, and the driving rod 23 drives the driven pulley 27 to rotate through the pulley transmission, so that the torsion spring 44 accumulates force. After the powder collecting box assembly is fully inserted between the two sets of side plates 8, the back plate 7 is connected to the side plates 8 through the lock buckle;

[0043] After the briquetting mechanism pushes multiple groups of briquetting powders to the top support plate 17, the block powder will squeeze the limiting structure to unlock the limiting structure. At this time, the torsion spring 44 drives the reel 19 to rotate, pulling the top support plate 17 upward. After the support plate 17 supporting the block powder moves upward, the limiting structure resets and clamps the next group of support plates 17. This reciprocating process ensures that all support plates 17 support the briquetting powder.

[0044] In order to use the limiting structure, as an embodiment of the present invention, the limiting structure includes an extrusion plate 29, which is located above the inner side of the opening 21. The upper surface of the extrusion plate 29 is in sliding contact with the inner wall of the opening 21. The extrusion plate 29 is fixedly connected to the storage frame 16 through a spring. The pressing mechanism pushes the powder into the storage frame 16 after pressing the powder blocks and squeezes the extrusion plate 29 to move, thereby unlocking the support plate 17 at the bottom of the extrusion plate 29.

[0045] During use, after the briquetting mechanism pushes multiple groups of briquetting powder onto the topmost support plate 17, it will rely on the bulk powder to squeeze the squeezing plate 29, causing the squeezing plate 29 to disengage from the upper surface of the support plate 17, thereby unlocking the topmost support plate 17. At this time, the torsion spring 44 drives the reel 19 to rotate, pulling the topmost support plate 17 upward. After the support plate 17 supporting the bulk powder moves upward, the spring drives the squeezing plate 29 to reset and clamp the next group of support plates 17. This reciprocating cycle ensures that all support plates 17 support the briquetting powder. It should be noted that in order to facilitate the bulk powder to push the squeezing plate 29 to move, balls can be installed on the lower surface of the squeezing plate 29 to reduce the friction between the squeezing plate 29 and the edge of the support plate 17.

[0046] In order to ensure the use of the vibrating powder sprinkling part, as an embodiment of the present invention, the vibrating powder sprinkling part includes a vibrating powder sprinkling position bracket 30 arranged on the product conveying part, the vibrating powder sprinkling position bracket 30 is fixedly connected to the chassis 3, and a vibrating powder sprinkling device 31 is installed on the vibrating powder sprinkling position bracket 30, and the vibrating powder sprinkling device 31 is connected to a powder hopper 32, and the chassis 3 is provided with an amplitude adjustment knob 33 for adjusting the amplitude of the vibrating powder sprinkling device 31.

[0047] When in use, the vibrating powder sprinkling part vibrates and sprinkles the desired powder on the product surface. Specifically, the vibrating powder sprinkling device 31 vibrates and sprinkles the powder in the powder hopper 32 onto the product surface, and the amplitude adjustment knob 33 is used to adjust the amount of powder sprinkling.

[0048] In order to ensure the use of the powder atomization part, one side of the vibrating powder sprinkling bracket 30 is connected to an atomization and back-suction bracket 34, and the powder atomization part includes an atomization nozzle 35 capable of adjusting the atomization distance. The atomization nozzle 35 is installed on the atomization and back-suction bracket 34, and the chassis 3 is provided with an atomization gas volume adjustment knob 36 for adjusting the atomization gas volume of the atomization nozzle 35, and the atomization and back-suction bracket 34 is provided with a back-suction powder pipe 42.

[0049] When in use, the powder atomization part is used to atomize the powder on the product surface and the conveyor belt to make the powder on the product surface uniform. Specifically, the atomization gas volume adjustment knob 36 adjusts the atomization gas volume, and the distance between the atomization nozzle 35 and the product is adjusted to atomize the powder, so that the powder is more uniform on the product surface.

[0050] In order to ensure the effect of the powder recovery part, as an embodiment of the present invention, the powder back-suction part includes a powder removal filter 37 arranged in the chassis 3, and the powder removal filter 37 is connected to the powder back-suction pipe 42 through a pipe. An explosion-proof motor 38 is provided in the chassis 3, and the output end of the explosion-proof motor 38 is connected to the wind wheel 39, and the wind wheel 39 is connected to the powder removal filter 37. The chassis 3 is provided with a dust removal device, and a powder removal collection box 40 is provided under the powder removal filter 37. A powder removal solenoid valve 41 for cleaning the powder removal filter 37 is installed in the chassis 3.

[0051] During use, the powder re-absorption part is used to re-absorb excess powder on the product surface and in the powder atomization part, so that the powder on the product surface is uniform and the safety hazard caused by dust diffusion is eliminated. Specifically, the explosion-proof motor 38 and the wind wheel 39 rotate to draw away the air from the powder removal filter 37 to form a negative pressure. The powder removal filter 37 is connected to the powder re-absorption pipe 42 to absorb the dust in the air near the powder atomization position and the excess powder on the product surface, thereby making the powder on the product surface more uniform. Absorbing the dust in the air can prevent the risk of dust explosion. In order to prevent the powder removal filter 37 from being blocked by powder, compressed air is blown into the powder removal filter 37 through the powder removal solenoid valve 41 at regular intervals to remove the powder attached to the powder removal filter 37 and to the powder removal collection box 40 for recycling.

[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food powder coating conveyor line, characterized in that: The invention comprises a first conveyor belt (1) for conveying products to be coated with powder, and a second conveyor belt (2) for conveying products coated with powder, wherein a product conveying portion is provided between the first conveyor belt (1) and the second conveyor belt (2), a vibrating powder sprinkling portion for sprinkling powder onto the product is provided in front of the product conveying portion, a powder atomizing portion for atomizing powder on the surface of the product and the product conveying portion is provided on one side of the vibrating powder sprinkling portion, and a powder reabsorption portion for reabsorbs excess powder on the surface of the product and in the powder atomizing portion is provided on one side of the powder atomizing portion; A chassis (3) is provided on one side of the product conveying part, and the product conveying part includes a third conveyor belt (4) installed on one side of the chassis (3), and a collecting funnel (43) connected to the chassis (3) is provided below the third conveyor belt (4), and a powder collecting box assembly for collecting powder is provided below the collecting funnel (43), and a sorting mechanism for pressing and sorting the powder is provided in the powder collecting box assembly; the sorting mechanism includes a pressing mechanism provided between two groups of side plates (8), and the pressing mechanism includes a horizontally arranged fourth conveyor belt (9), and the outer side of the fourth conveyor belt (9) is connected to Several groups of positioning blocks (12) are provided on each of the positioning blocks (12), wherein a slide groove (13) is provided, wherein a movable plate (14) is slidably connected in the slide groove (13), and a support spring (46) is connected between the bottom of the slide groove (13) and the movable plate (14). A wedge-shaped guide plate (15) connected to the bottom plate (47) is provided below the fourth conveyor belt (9), and the fourth conveyor belt (9) pushes the powder from the thinner end of the guide plate (15) to the thicker end through the positioning blocks (12) and the movable plate (14) to press the powder into blocks; the powder collecting box assembly also includes a device provided between two groups of side plates (8) A storage frame (16) is provided with upper and lower stacked support plates (17) in the storage frame (16), and a pull rope (18) is connected between adjacent support plates (17). A reel (19) is provided above the storage frame (16), and one end of the reel (19) is rotatably connected to the chassis (3). The reel (19) is connected to the uppermost support plate (17) through a connecting rope (20). At least two sets of sliders (45) are connected to the side of the support plate (17) close to the chassis (3), and the sliders (45) are vertically slidably connected to the chassis (3). The side of the storage frame (16) away from the back plate (7) is connected to the uppermost support plate (17). An opening (21) corresponding to the stacked support plate (17) is provided at the bottom, and a limiting structure for locking the support plate (17) is connected to the storage frame (16). The limiting structure includes an extrusion plate (29), and the extrusion plate (29) is located above the inner side of the opening (21). The upper surface of the extrusion plate (29) is in sliding contact with the inner wall of the opening (21). The extrusion plate (29) is fixedly connected to the storage frame (16) through a spring. The pressing mechanism presses the powder into the storage frame (16) and presses the pressing plate (29) to move, thereby unlocking the support plate (17) below the pressing plate (29).

2. A food powder coating conveyor line according to claim 1, characterized in that: The chassis (3) is provided with a roller (5) for driving the third conveyor belt (4) to move and a guide roller (6) for guiding the third conveyor belt (4). The inner side of the collecting funnel (43) is connected to a scraper (48) for cleaning the third conveyor belt (4).

3. A food powder coating conveyor line according to claim 2, characterized in that: A bottom plate (47) connected to the chassis (3) is provided below the powder collecting box assembly, and the powder collecting box assembly includes a back plate (7). Side plates (8) detachably connected to the bottom plate (47) are provided on both sides of the back plate (7), and the back plate (7) is connected to the side plates (8) through a lock. A driving roller (10) and a driven roller (11) rotatably connected to the chassis (3) are provided in the fourth conveyor belt (9). The driving roller (10) and the driven roller (11) are driven by the fourth conveyor belt (9). One end of the driving roller (10) is provided with a driving motor for driving the driving roller (10) to rotate, and the driving motor is installed in the chassis (3).

4. A food powder coating conveyor line according to claim 3, characterized in that: The storage frame (16) is fixedly connected to the back plate (7), and the upper portion of the storage frame (16) and the side close to the fourth conveyor belt (9) are both open.

5. A food powder coating conveyor line according to claim 4, characterized in that: The pull rope (18) and the connecting rope (20) are both located on the side of the support plate (17) close to the fourth conveyor belt (9), the slider (45) is arranged on the side of the push plate close to the fourth conveyor belt (9), and a plurality of groups of notches (22) are distributed from top to bottom on the side of the storage frame (16) away from the back plate (7), and the notches (22) correspond to the position of the support plate (17) after the winding shaft (19) completely winds up the connecting rope (20).

6. A food powder coating conveyor line according to claim 5, characterized in that: The chassis (3) is rotatably connected to a horizontally arranged driving rod (23), the driving rod (23) is fixedly connected to a guide block (24), the back plate (7) is connected to an internal threaded tube (25) corresponding to the driving rod (23), a spiral guide groove corresponding to the guide block (24) is provided in the internal threaded tube (25), the driving rod (23) is connected to a driving pulley (26), one end of the winding shaft (19) is provided with a driven pulley (27) corresponding to the driving pulley (26), a one-way bearing (28) is connected between the driven pulley (27) and the winding shaft (19), a transmission belt is used to transmit power between the driving pulley (26) and the driven pulley (27), and a torsion spring (44) is connected between the winding shaft (19) and the driven pulley (27).

7. A food powder coating conveyor line according to any one of claims 2 to 6, characterized in that: The vibrating powder-sprinkling part comprises a vibrating powder-sprinkling bracket (30) arranged on the product conveying part, the vibrating powder-sprinkling bracket (30) being fixedly connected to the chassis (3), a vibrating powder-sprinkling device (31) being installed on the vibrating powder-sprinkling bracket (30), a powder hopper (32) being connected to the vibrating powder-sprinkling device (31), and an amplitude adjustment knob (33) for adjusting the amplitude of the vibrating powder-sprinkling device (31) being provided on the chassis (3).

8. A food powder coating conveyor line according to claim 7, characterized in that: One side of the vibrating powder-sprinkling bracket (30) is connected to an atomizing and back-suction bracket (34), the powder atomizing part includes an atomizing nozzle (35) capable of adjusting the atomizing distance, the atomizing nozzle (35) is installed on the atomizing and back-suction bracket (34), the chassis (3) is provided with an atomizing gas volume regulating knob (36) for regulating the atomizing gas volume of the atomizing nozzle (35), and the atomizing and back-suction bracket (34) is provided with a back-suction powder pipeline (42).

9. A food powder coating conveyor line according to claim 8, characterized in that: The powder reabsorption part comprises a powder removal filter (37) arranged in a chassis (3), the powder removal filter (37) is connected to a powder reabsorption pipeline (42) through a pipeline, an explosion-proof motor (38) is arranged in the chassis (3), the output end of the explosion-proof motor (38) is connected to a wind wheel (39), the wind wheel (39) is connected to the powder removal filter (37), a powder removal collection box (40) is arranged below the powder removal filter (37), and a powder removal solenoid valve (41) for cleaning the powder removal filter (37) is installed in the chassis (3).

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