A food dusting apparatus

Abstract

The utility model discloses a food powdering equipment belongs to food processing technical field, specifically includes frame, and the frame is rotated and is connected through the drive roll conveyor mesh belt in, the frame is along the conveying direction of conveyor mesh belt and is sequentially provided with powder storage device, scattering powder device, powder circulating device and air knife device, still be provided with even powder device between the air knife device and the discharge end of conveyor mesh belt on the frame, is used for even powder device of reorganization even of powder material on the surface of chicken piece, even powder device includes the installation shell, the installation shell fixed connection is in the frame, the installation shell is slidably connected with the lifting frame in, the even powder roller is rotatably connected with the lifting frame below, the utility model discloses the even powder roller that sets up can carry out secondary even powder processing to the chicken piece after the preliminary scattering powder, ensures chicken piece surface powder layer thickness consistency, adheres firmly, not only has solved the density difference and local caking problem of powder layer itself, and makes chicken piece surface powder layer more even, has promoted the quality of food.

Description

Technical Field

[0001] This utility model belongs to the field of food processing technology, and specifically relates to a food powder coating device. Background Technology

[0002] Parallel powder coating machines are commonly used in food processing. They typically consist of a frame, conveyor belt, storage hopper, powder spreading component, and powder circulation component. During operation, powder is evenly spread from the storage hopper onto the conveyor belt via the powder spreading component. Chicken pieces are placed on the belt, and as the belt moves, the ingredients pass through the powder, resulting in a uniform coating. Excess powder is blown off by the vibration of the belt or the action of air knives, collected, and reused.

[0003] When applying powder to Sichuan peppercorn chicken, parallel powder coating machines typically use an air knife after the powdering unit to blow away loose powder and improve the powder layer condition. However, the air knife can only remove loose powder from the surface of the Sichuan peppercorn chicken and cannot solve the problems of density differences and local clumping in the powder layer itself. Therefore, it is necessary to provide a food powder coating device to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a food coating device that solves the problems of density differences and localized clumping in the coating layer, and also makes the coating layer on the surface of chicken pieces more uniform, thereby improving the quality of the chicken pieces.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a food powder coating device, comprising a frame, wherein a conveyor belt is rotatably connected to the frame via a drive roller, and a powder storage device, a powder spreading device, a powder circulation device, and an air knife device are sequentially arranged on the frame along the conveying direction of the conveyor belt. The feature is that: a powder leveling device is also provided on the frame between the air knife device and the discharge end of the conveyor belt, which is used to re-sort the powder on the surface of the chicken pieces evenly. The powder leveling device includes a mounting shell, which is fixedly connected to the frame. A lifting frame is slidably connected inside the mounting shell, and a powder leveling roller is rotatably connected below the lifting frame.

[0006] Preferably, the mounting shell is provided with a first driving mechanism for adjusting the distance between the powder leveling roller and the conveyor belt. The first driving mechanism includes a first cylinder, the cylinder barrel of the first cylinder is fixedly connected to the top of the mounting shell, the piston end of the first cylinder passes through the mounting shell and is fixedly connected to the lifting frame, and limit rods are provided on both sides of the first cylinder. One end of the limit rod movably passes through the mounting shell and is fixedly connected to the lifting frame.

[0007] Preferably, the powder leveling roller includes a roller core and a silicone sleeve. The axis of the roller core is perpendicular to the conveying direction of the conveyor belt. Both ends of the roller core are rotatably connected to the lifting frame. The silicone sleeve is fixedly sleeved on the outside of the roller core, and protrusions are fixedly connected to the outer surface of the silicone sleeve.

[0008] Preferably, the end of the protrusion that faces the conveyor belt has an arc-shaped structure, and the protrusions are evenly or spirally distributed on the outer surface of the silicone sleeve.

[0009] Preferably, a groove is provided on one side of the frame for one end of the roller core to pass through, a slider is slidably connected in the groove, the slider is rotatably sleeved on the end of the roller core, and bellows covers are fixedly connected to both the upper and lower sides of the slider, and the other end of the groove is fixedly connected to the other end of the bellows cover.

[0010] Preferably, the frame is provided with a second drive mechanism for driving the roller core to rotate. The second drive mechanism includes a mounting plate, which is slidably connected to the frame via a guide rail. One side of the mounting plate is fixedly connected to a slider, and the other side of the mounting plate is fixedly connected to a reduction motor. The output shaft of the reduction motor is drively connected to one end of the roller core.

[0011] Preferably, it also includes a cleaning device for cleaning the powder adhering to the powder roller. The cleaning device includes a cleaning plate, which is slidably connected to the lifting frame and located above the powder roller. A cleaning brush is fixedly connected to the surface of the cleaning plate on the side facing the powder roller.

[0012] Preferably, the lifting frame is provided with a third driving mechanism for causing the cleaning plate to drive the cleaning brush to move closer to or away from the powder leveling roller. The third driving mechanism includes a second cylinder, the cylinder barrel of which is fixedly connected to the lifting frame, and the piston end of the second cylinder passes through the lifting frame and is fixedly connected to the cleaning plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a powder-spreading roller to perform a secondary powder-spreading process on chicken pieces after initial powdering, ensuring a consistent powder layer thickness and firm adhesion on the surface of the chicken pieces. This not only solves the problems of density differences and local clumping in the powder layer itself, but also makes the powder layer on the surface of the chicken pieces more uniform, thereby improving the quality of the chicken pieces. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the powder homogenizing device of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the powder-leveling roller of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle; In the diagram: 1. Frame; 2. Conveyor belt; 3. Powder storage device; 4. Powder circulation device; 5. Air knife device; 6. Powder leveling device; 61. Mounting shell; 62. Lifting frame; 63. Powder leveling roller; 631. Roller core; 632. Silicone sleeve; 633. Protrusion; 64. First cylinder; 65. Limiting rod; 66. Slide groove; 67. Sliding block; 68. Bellows cover; 69. Mounting plate; 610. Guide rail; 611. Gear motor; 612. Cleaning plate; 613. Cleaning brush; 614. Second cylinder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 Please see Figure 1-5 This embodiment provides the following technical solution: a food powder coating device, including a frame 1, in which a conveyor belt 2 is rotatably connected via a drive roller. In some embodiments, the conveyor belt 2 is a Z-shaped stainless steel mesh belt. One end of one of the drive rollers extends out of the frame 1 and is connected to a motor via a coupling. The speed of the motor is adjusted as needed, thereby adjusting the conveying speed of the conveyor belt 2.

[0017] Along the conveying direction of the conveyor belt 2, the frame 1 is equipped with a powder storage device 3, a powder spreading device, a powder circulation device 4, and an air knife device 5.

[0018] In some embodiments, the powder storage device 3 may include a powder storage bin and a stirring assembly. The powder storage bin is fixedly connected to the top of the frame 1, and the stirring assembly is rotatably connected inside the powder storage bin. The stirring assembly is driven by a motor to stir the powder.

[0019] The powder spreading device includes a powder spreading hopper located directly below the powder storage silo. The top inlet of the powder spreading hopper is connected to the bottom outlet of the powder storage silo via a telescopic corrugated pipe. A detachable screen is installed at the bottom of the powder spreading hopper. A vibrating motor is fixed on the outer wall of the powder spreading hopper. The two sides of the powder spreading hopper are connected to the frame 1 via spring shock absorbers. Under the action of the vibrating motor, the powder is evenly spread on the chicken pieces on the conveyor belt 2.

[0020] The powder circulation device 4 includes a powder collection trough, a screw conveyor, and a powder return pipe located below the conveyor belt 2. The length of the powder collection trough is the same as that of the conveyor belt 2. The two side walls of the powder collection trough are welded and sealed to the frame 1. The bottom of the powder collection trough is inclined towards the powder discharge port to ensure that the powder is collected. The feed port of the screw conveyor is connected to the powder discharge port at the bottom of the powder collection trough, and the discharge port of the screw conveyor is connected to the powder storage bin, so that the collected powder can be transported back to the powder storage bin.

[0021] The air knife device 5 includes an airflow main pipe, branch air pipes, flow regulating valves, and an air knife body; the airflow main pipe is fixed to the outside of the frame 1 and is supplied with compressed air by an air compressor; the two ends of the branch air pipes are respectively connected to the air inlets of the airflow main pipe and the air knife body, and ball valve-type flow regulating valves are installed on the branch air pipes to control the air volume on both sides independently; the air knife body can blow away the floating powder on the surface of the chicken pieces on the conveyor belt 2.

[0022] Example 2 Please see Figure 1-3 A powder leveling device 6 is also installed on the frame 1 between the air knife device 5 and the discharge end of the conveyor belt 2. This device is used to re-evenly distribute the powder on the surface of the chicken pieces. The powder leveling device 6 includes a mounting shell 61, which is fixedly connected to the frame 1. A lifting frame 62 is slidably connected inside the mounting shell 61. A powder leveling roller 63 is rotatably connected below the lifting frame 62. The powder leveling roller 63 includes a roller core 631 and a silicone sleeve 632. The axis of the roller core 631 is perpendicular to the conveying direction of the conveyor belt 2. Both ends of the roller core 631 are rotatably connected to the lifting frame 62. The silicone sleeve 632 is fixedly fitted on the outside of the roller core 631. A protrusion 633 is fixedly connected to the outer surface of the silicone sleeve 632. Through the powder leveling roller 63, the chicken pieces after the initial powdering can be subjected to a secondary powder leveling process to ensure that the powder layer thickness on the surface of the chicken pieces is uniform and firmly adhered. This not only solves the problem of density difference and local clumping of the powder layer itself, but also makes the powder layer on the surface of the chicken pieces more uniform, thus improving the quality of the chicken pieces.

[0023] A second drive mechanism is provided on the frame 1 to drive the roller core 631 to rotate. The second drive mechanism includes a mounting plate 69, which is slidably connected to the frame 1 via a guide rail 610. One side of the mounting plate 69 is fixedly connected to the slider 67, and the other side of the mounting plate 69 is fixedly connected to a reduction motor 611. The output shaft of the reduction motor 611 is drivenly connected to one end of the roller core 631. Through the reduction motor 611, the powder leveling roller 63 rotates, which can comb the powder layer, break up the clumps of powder, and at the same time, under the action of pressure, adjust the uneven parts in the powder layer. The thicker areas of the powder layer become thinner, and the thinner areas of the powder layer are filled by the surrounding powder, thereby achieving the consistency and uniformity of the powder layer thickness.

[0024] In some embodiments, the end of the protrusion 633 that is directly opposite to the conveyor belt 2 is an arc-shaped structure. The protrusion 633 is evenly or spirally distributed on the outer surface of the silicone sleeve 632. When the arc-shaped surface of the protrusion 633 comes into contact with the chicken piece, the pressure is evenly distributed and will not form local high pressure on the surface of the chicken piece. This allows the powder to penetrate deep into the texture without damaging the integrity of the chicken piece.

[0025] The mounting housing 61 is equipped with a first driving mechanism for adjusting the distance between the leveling roller 63 and the conveyor belt 2. The first driving mechanism includes a first cylinder 64, the cylinder barrel of which is fixedly connected to the top of the mounting housing 61. The piston end of the first cylinder 64 passes through the mounting housing 61 and is fixedly connected to the lifting frame 62. Limiting rods 65 are provided on both the front and rear sides of the first cylinder 64. One end of the limiting rod 65 moves through the mounting housing 61 and is fixedly connected to the lifting frame 62. Through the first cylinder 64, the height of the leveling roller 63 can be adjusted in real time according to the thickness of the chicken pieces, thereby adapting to the leveling operation of chicken pieces of different thicknesses and also adapting to the processing needs of other different meat products.

[0026] The rear side of the frame 1 is provided with a groove 66 through which one end of the roller core 631 passes. A slider 67 is slidably connected in the groove 66. The slider 67 is rotatably sleeved on the end of the roller core 631. Bellows covers 68 are fixedly connected to both the upper and lower sides of the slider 67. The other end of the bellows cover 68 is fixedly connected to the end of the groove 66. Through the groove 66, the height of the leveling roller 63 can be adjusted, and the reduction motor 611 can also drive the leveling roller 63 to rotate, so that the position of the reduction motor 611 always follows the height of the leveling roller 63.

[0027] Example 3 In order to reduce the powder adhering to the surface of the leveling roller 63, a cleaning device is also included to clean the powder adhering to the leveling roller 63. The cleaning device includes a cleaning plate 612, which is slidably connected to the lifting frame 62 and located above the leveling roller 63. A cleaning brush 613 is fixedly connected to the side surface of the cleaning plate 612 facing the leveling roller 63. Through the cleaning brush 613, the cleaning brush 613 cleans the surface of the leveling roller 63 while remaining stationary during the rotation of the leveling roller 63.

[0028] Example 4 A third drive mechanism is provided on the lifting frame 62 to drive the cleaning plate 612 to move the cleaning brush closer to or away from the powder leveling roller 63. The third drive mechanism includes a second cylinder 614, the cylinder of which is fixedly connected to the lifting frame 62. The piston end of the second cylinder 614 passes through the lifting frame 62 and is fixedly connected to the cleaning plate 612. In some embodiments, two second cylinders 614 are provided, symmetrically arranged on the lifting frame 62. Through the second cylinders 614, the cleaning brush can be moved closer to or away from the powder leveling roller 63. When the cleaning brush is in contact with the powder leveling roller 63, the rotating powder leveling roller 63 contacts the cleaning brush 613 to clean the powder adhering to the surface of the powder leveling roller 63. When the cleaning brush is not in contact with the powder leveling roller 63, the powder leveling roller 63 works normally, reducing the contact time between the powder leveling roller 63 and the cleaning brush 613 and improving the service life of the cleaning brush.

[0029] The working principle of this utility model is as follows: During operation, the marinated chicken pieces are evenly placed at the feeding end of the conveyor belt 2. The motor is started, and the conveyor belt 2 conveys the chicken pieces at a uniform speed. The powder mixing component in the powder storage bin continuously stirs the powder. The valve on the powder storage bin is opened to allow the powder to enter the powder spreading hopper. The vibrating motor drives the powder spreading hopper to vibrate. After being screened by the screen, the powder falls evenly onto the surface of the chicken pieces conveyed below, forming a preliminary powder layer.

[0030] Chicken pieces enter the area of ​​air knife device 5 along with conveyor belt 2. High-pressure airflow is sprayed from the air knife body on both sides to blow away excess floating powder on the surface. At the same time, the airflow pressure makes the remaining powder layer adhere more tightly to the surface of the chicken. Floating powder and excess powder fall into the powder collection trough below through the mesh of conveyor belt 2. The recovered powder in the powder collection tank is lifted by a screw conveyor and transported back to the powder storage silo, so that the recovered powder can be mixed with new powder for reuse. Based on the actual thickness of the chicken pieces, the first cylinder 64 is activated, causing the lifting frame 62 to drive the powder-spreading roller 63 to move vertically. The distance between the powder-spreading roller 63 and the conveyor belt 2 is adjusted to ensure that the powder-spreading roller 63 makes light contact with the powder layer on the surface of the chicken pieces, so as not to damage the ingredients and to effectively act on the powder layer. When the geared motor 611 is started, the protrusions on the surface of the powder roller 63 rotate with the roller core 631 and the silicone sleeve 632, breaking up the powder clumps formed by humidity or pressure, making the powder loose and uniform; and pushing the powder in the areas with excessively thick powder layers to the surrounding areas with excessively thin powder layers, while the elastic pressure of the soft silicone makes the powder adhere more tightly to the surface of the chicken nuggets. The chicken pieces that have been evenly coated with powder are conveyed by conveyor belt 2 to the outside of the parallel powder coating machine for subsequent processes such as frying and baking. When the powder leveling roller 63 needs to be cleaned, the second cylinder 614 is started, causing the cleaning plate 612 to drive the cleaning brush 613 to approach the powder leveling roller 63 until the cleaning brush 613 is in contact with the surface of the powder leveling roller 63. The reduction motor 611 is started to make the powder leveling roller 63 rotate. During the rotation of the powder leveling roller 63, the powder leveling roller 63 rubs against the cleaning brush 613 to clean the powder adhering to the powder leveling roller 63. After cleaning is completed, the cleaning plate 612 drives the cleaning brush 613 to return to its original position.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A food powdering device, comprising a frame (1), wherein a conveyor belt (2) is rotatably connected to the frame (1) via a drive roller, and a powder storage device (3), a powder spreading device, a powder circulation device (4) and an air knife device (5) are sequentially arranged on the frame (1) along the conveying direction of the conveyor belt (2). Its features are: A powder leveling device (6) is also provided on the frame (1) between the air knife device (5) and the discharge end of the conveyor belt (2) to re-sort the powder on the surface of the chicken pieces evenly. The powder leveling device (6) includes a mounting shell (61), which is fixedly connected to the frame (1). A lifting frame (62) is slidably connected inside the mounting shell (61), and a powder leveling roller (63) is rotatably connected below the lifting frame (62).

2. The food coating equipment according to claim 1, characterized in that: The mounting shell (61) is provided with a first driving mechanism for adjusting the distance between the powder leveling roller (63) and the conveyor belt (2). The first driving mechanism includes a first cylinder (64). The cylinder barrel of the first cylinder (64) is fixedly connected to the top of the mounting shell (61). The piston end of the first cylinder (64) passes through the mounting shell (61) and is fixedly connected to the lifting frame (62). Limiting rods (65) are provided on both sides of the first cylinder (64). One end of the limiting rod (65) moves through the mounting shell (61) and is fixedly connected to the lifting frame (62).

3. The food coating equipment according to claim 1, characterized in that: The powder leveling roller (63) includes a roller core (631) and a silicone sleeve (632). The axis of the roller core (631) is perpendicular to the conveying direction of the conveyor belt (2). The two ends of the roller core (631) are rotatably connected to the lifting frame (62). The silicone sleeve (632) is fixedly sleeved on the outside of the roller core (631). The outer surface of the silicone sleeve (632) is fixedly connected with a protrusion (633).

4. The food coating equipment according to claim 3, characterized in that: The end of the protrusion (633) that is directly opposite to the conveyor belt (2) has an arc-shaped structure, and the protrusion (633) is evenly or spirally distributed on the outer surface of the silicone sleeve (632).

5. The food coating equipment according to claim 3, characterized in that: A groove (66) is provided on one side of the frame (1) for one end of the roller core (631) to pass through. A slider (67) is slidably connected in the groove (66). The slider (67) is rotatably sleeved on the end of the roller core (631). A bellows cover (68) is fixedly connected to both the upper and lower sides of the slider (67). The end of the groove (66) at the other end of the bellows cover (68) is fixedly connected.

6. The food coating equipment according to claim 3, characterized in that: The frame (1) is provided with a second driving mechanism for driving the roller core (631) to rotate. The second driving mechanism includes a mounting plate (69), which is slidably connected to the frame (1) via a guide rail (610). One side of the mounting plate (69) is fixedly connected to a slider (67), and the other side of the mounting plate (69) is fixedly connected to a reduction motor (611). The output shaft of the reduction motor (611) is connected to one end of the roller core (631) for transmission.

7. The food coating equipment according to claim 1, characterized in that: It also includes a cleaning device for cleaning the powder adhering to the powder roller (63). The cleaning device includes a cleaning plate (612), which is slidably connected to the lifting frame (62) and located above the powder roller (63). A cleaning brush (613) is fixedly connected to the cleaning plate (612) on the side surface opposite to the powder roller (63).

8. The food coating equipment according to claim 7, characterized in that: The lifting frame (62) is provided with a third driving mechanism for causing the cleaning plate (612) to drive the cleaning brush to approach or move away from the powder leveling roller (63). The third driving mechanism includes a second cylinder (614), the cylinder of the second cylinder (614) is fixedly connected to the lifting frame (62), and the piston end of the second cylinder (614) passes through the lifting frame (62) and is fixedly connected to the cleaning plate (612).

Images