Powder scattering device for food

Abstract

The utility model relates to a powder scattering device for food. The powder scattering device comprises an assembling support, a powder bin and a powder scattering assembly. The powder bin is connected to the assembling support and used for storing powder. The powder scattering assembly comprises a circulating trough, a sieve plate, a roller brush, a driving part, a forward auger and a reverse auger, the forward auger and the reverse auger are arranged in the circulating trough at intervals, the mounting directions of spiral blades of the forward auger and the reverse auger are opposite, the feeding end of the forward auger is arranged below a discharging port of the powder bin, the sieve plate is arranged at the trough bottom of the circulating trough, and the roller brush is arranged at the trough bottom of the circulating trough. Bristles of the roller brush can act on the surface of the sieve plate, and the driving part can drive the roller brush, the forward auger and the reverse auger to rotate. The powder distributor is compact in structure, small and exquisite in size, capable of being directly assembled on food processing equipment as an accessory, good in adaptability with the food processing equipment, capable of being used for various food processing equipment, high in reliability and capable of evenly distributing powder with different particle sizes or different characteristics on the surface of food to be processed or on a conveying belt.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a food powder sprinkling device. Background Art

[0002] During food processing, for some foods with sticky surfaces (such as pastries, candies, etc.), in order to prevent them from sticking to each other or other debris during processing, it is usually necessary to sprinkle some powder on the food surface to achieve surface anti-sticking.

[0003] In the traditional powdering process, it is usually manual work with low work efficiency and high labor intensity. With the improvement of food industrialization and process processing, the above powdering process also adopts automatic powdering equipment for powdering. This automatic powdering equipment is mostly improved based on the shaking powdering principle of industrial powdering machines to perform powdering operations on the surface of the conveyor belt or the surface of the food on the conveyor belt. In actual operation, this automatic powdering equipment is difficult to achieve uniform powdering, and the powder particle size and powdering density of the powder raw materials cannot be adjusted according to the actual needs of different foods. In addition, the powder bin is large in size, which is not convenient for combined assembly between equipment, resulting in a waste of equipment assembly space. Utility Model Content

[0004] Based on this, it is necessary to address the problems that the existing powder sprinkling equipment is large in size, inconvenient to assemble, difficult to achieve uniform powder sprinkling and inconvenient to adjust. The utility model provides a food powder sprinkling device, including an assembly bracket, a powder silo and a powder sprinkling component; the assembly bracket has an assembly portion for fixing to the side of the conveyor belt; the powder silo is connected to the assembly bracket for storing powder; the powder sprinkling component includes a circulation trough, a sieve plate, a roller brush, a driving portion, a forward auger and a reverse auger, and the end of the circulation trough is fixedly connected to the assembly bracket so that after the assembly bracket is assembled to the side of the conveyor belt, the circulation trough is located above the conveyor belt. A forward auger and a reverse auger are arranged in the circulation trough at intervals, and the spiral blades of the forward auger and the reverse auger are installed in opposite directions. The feeding end of the forward auger is arranged below the discharge port of the powder silo, and a sieve plate is arranged at the bottom of the circulation trough corresponding to the width direction of the conveyor belt, the roller brush is arranged above the sieve plate and the bristles of the roller brush can act on the surface of the sieve plate, the driving unit is connected to the assembly bracket, and the roller brush, the forward auger and the reverse auger are respectively connected to the driving unit, and the driving unit can drive the roller brush, the forward auger and the reverse auger to rotate.

[0005] By adopting the above technical scheme, the utility model provides a food powder sprinkling device with a compact structure and small size. It can be directly assembled on food processing equipment as an accessory through an assembly bracket. It has good adaptability to food processing equipment and can be used for various types of food processing equipment with high reliability. By driving the forward auger and the reverse auger to rotate, the powder discharged from the powder silo can be evenly circulated and conveyed in the circulation trough, and the relative movement of the roller brush and the screen plate can be used to realize the powder discharge of the screen plate.

[0006] In one embodiment, the food powder sprinkling device further includes a forced powder feeding mechanism, which includes a rotating shaft and a plurality of pressing rods connected to the circumference of the rotating shaft, wherein the rotating shaft is disposed in the powder silo and connected to the driving part.

[0007] By adopting the above technical solution, the pressing rod rotates with the rotating shaft, and the pressing rod can push the powder into the discharge port of the powder silo to realize forced discharge, so as to avoid the phenomenon of powder jamming at the discharge port.

[0008] In one of the embodiments, the press rod is a T-shaped rod body, a plurality of press rods are arranged at intervals along the length direction of the rotating shaft, and two adjacent press rods are staggered along the circumference of the rotating shaft.

[0009] By adopting the above technical solution, the rotation of the rotating shaft can drive the pressing rod connected thereto to rotate, and the pressing rod can squeeze and push the powder to the discharge port during the rotation process to realize the forced discharge of the powder, and the control of the specific gravity of the powder discharge can be realized by controlling the rotation speed; and the collision between the pressing rod and the powder can break up the agglomerated powder. The forced powder feeding mechanism of this embodiment can control the specific gravity of the powder and prevent the agglomeration of the powder from causing the discharge port of the powder bin to fail to discharge the powder.

[0010] In one of the embodiments, the powder spreading assembly further comprises a suspended baffle, which separates the forward auger from the reverse auger, so that an annular circulating feeding channel is formed in the circulating trough.

[0011] By adopting the above technical solution, the suspended partition separates the reverse auger and the forward auger to obtain the forward feeding channel and the reverse feeding channel. The discharge port of the powder silo is directly opposite to the feeding end of the forward auger, and the spiral blades on the forward auger are forwardly mounted, so that when the forward auger rotates, the powder material coming out of the powder silo is pushed to the conveyor belt side through the forward feeding channel; and the spiral blades on the reverse auger are reversely mounted, so that when the reverse auger rotates, the excess powder material at the end of the forward feeding channel is pushed to the feeding end of the forward auger through the reverse feeding channel, thereby realizing the circular circulation of the powder material in the circulation trough, thereby ensuring that there is a stable amount of powder material to be sprinkled in the circulation trough to ensure the uniformity of powdering.

[0012] In one embodiment, the powder spreading assembly also includes a sieve plate assembly frame and a connecting piece. The bottom of the circulating material trough has an opening, and the sieve plate assembly frame is detachably assembled on both sides of the opening through the connecting piece. The sieve plate assembly frame is provided with an insertion groove, and the sieve plate is inserted into the insertion groove so that the sieve plate is connected and fixed to the sieve plate assembly frame.

[0013] By adopting the above technical solution, the corresponding sieve plate can be replaced through the insertion slot, and by replacing different sieve plates, it can be used to realize the powdering operation of powder raw materials with different particle sizes.

[0014] In one embodiment, the powder spreading assembly further comprises a spacing adjustment mechanism, wherein the spacing adjustment mechanism is connected to the roller brush and is used to adjust the spacing between the axis of the roller brush and the screen plate.

[0015] By adopting the above technical solution, by adjusting the distance between the roller brush and the screen plate, and replacing the roller brush with different bristles, it can be used for the powdering operation of powder raw materials with different physical properties.

[0016] In one embodiment, the roller brush is detachably connected to the driving part.

[0017] By adopting the above technical solution, the roller brush can be detachably connected to the driving part, so as to facilitate the replacement of different types of roller brushes according to different usage requirements.

[0018] In one embodiment, the spiral blades of the forward auger and the spiral blades of the reverse auger are made of stainless steel.

[0019] By adopting the above technical solution, the stainless steel is preferably food-grade stainless steel, which will not contaminate the powder and is strong and durable.

[0020] In one of the embodiments, the powder silo includes a silo body and a silo cover, the silo body has a storage cavity for storing powder and a feeding port connected to the storage cavity, and the silo cover is snap-connected to the silo body to close the feeding port.

[0021] By adopting the above technical solution, the silo cover and the silo body together enclose the storage cavity to isolate and protect the powder material in the silo from moisture, and prevent foreign matter from falling into the powder in the silo body during operation and contaminating the powder.

[0022] In one embodiment, the circulating trough includes a trough body and a trough cover plate, the trough body has a conveying trough for accommodating powder and an opening connected to the conveying trough, and the trough cover plate is snap-connected to the trough body to close the opening.

[0023] By adopting the above technical solution, the trough cover and the trough body are combined to close the conveying trough to isolate and protect the powder material in the trough body from moisture, and prevent foreign matter from falling into the powder in the trough body during operation and contaminating the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of the three-dimensional structure of the utility model.

[0025] Figure 2 for Figure 1 Front structural perspective view.

[0026] Figure 3 for Figure 1 The right side structural perspective view.

[0027] Figure 4 for Figure 1 Bottom structural perspective view.

[0028] In the figure:

[0029] 1. Assembly bracket; 2. Silo cover; 3. Reverse auger; 4. Circulation trough; 5. Trough cover; 6. Forward auger; 7. Suspended partition; 8. Connector; 9. Forced powder feeding mechanism; 10. Assembly unit; 11. Electronic control unit; 12. Main switch; 13. Driving pulley group; 14. Pullet assembly frame; 15. Reducer; 16. Driving motor; 17. Bearing seat; 18. Roller brush adjustment arm; 19. Roller brush; 20. Powder silo; 21. Screen plate assembly frame; 22. Auger shaft; 23. Roller brush shaft; 24. Roller brush shaft assembly frame; 25. Screen plate; 91. Shaft; 92. Press rod. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0031] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0035] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, for the convenience of describing the structure of a food powder spreading device, Figures 1 to 4What is shown is a perspective structural diagram of this embodiment, which does not constitute a limitation of its viewing state. The utility model provides a food powdering device, comprising an assembly bracket 1, a powder bin 20 and a powdering assembly; the assembly bracket 1 has an assembly portion 10 for fixing to the side of a conveyor belt; the powder bin 20 is connected to the assembly bracket 1 for storing powder; the powdering assembly comprises a circulating trough 4, a sieve plate 25, a roller brush 19, a driving portion, a forward auger 6 and a reverse auger 3, the end of the circulating trough 4 is fixedly connected to the assembly bracket 1, so that after the assembly bracket 1 is assembled to the side of the conveyor belt, the circulating trough 4 is located above the conveyor belt, and there are intervals in the circulating trough 4. The forward auger 6 and the reverse auger 3, the spiral blades of the forward auger 6 and the reverse auger 3 are installed in opposite directions, the feed end of the forward auger 6 is arranged below the discharge port of the powder silo 20, the bottom of the circulating trough 4 is provided with a sieve plate 25 corresponding to the width direction of the conveyor belt, the roller brush 19 is arranged above the sieve plate 25 and the bristles of the roller brush 19 can act on the surface of the sieve plate 25, the driving unit is connected to the assembly bracket 1, the roller brush 19, the forward auger 6 and the reverse auger 3 are respectively connected to the driving unit, and the driving unit can drive the roller brush 19, the forward auger 6 and the reverse auger 3 to rotate. Specifically, in this embodiment, the assembly bracket 1 includes a frame bracket, and a shell body that is face-sealed on the frame surface of the frame bracket; the powder silo 20 is a replaceable structure that can be withdrawn as a whole; the circulating trough 4 extends to the outside of the assembly bracket 1 and crosses the width direction of the corresponding conveyor belt on the food processing equipment; the forward auger 6 and the reverse auger 3 are respectively connected to the driving unit through the corresponding auger shaft 22. Furthermore, the assembly part 10 is a relatively arranged steel plate bending part, and a threaded assembly hole is formed on the steel plate bending part. Through the assembly part 10, the assembly bracket 1 can be assembled on the corresponding food processing equipment or on the bracket on the side of the food processing equipment. The corresponding food processing equipment should have a conveyor belt for transporting the intermediate food material in the continuous food processing process, and the food powder sprinkling device is fixedly arranged on the side of the conveyor belt to enable the powder sprinkled by the powder sprinkling component to fall onto the intermediate food material on the conveyor belt.

[0036] By adopting the above technical scheme, the food powder sprinkling device provided by the utility model has a compact structure and small size. It can be directly assembled on the food processing equipment as an accessory through the assembly bracket 1. It has good adaptability to the food processing equipment and can be used for various types of food processing equipment with high reliability. By driving the forward auger 6 and the reverse auger 3 to rotate, the powder discharged from the powder silo 20 can be evenly circulated and transported in the circulation trough 4, and the relative movement of the roller brush 19 and the screen plate 25 can be used to realize the powder discharge of the screen plate.

[0037] In one embodiment, the food powder sprinkling device further includes a forced powder feeding mechanism 9, which includes a rotating shaft 91 and a plurality of pressing rods 92 connected to the circumference of the rotating shaft 91. The rotating shaft 91 is disposed in the powder material bin 20 and connected to the driving part.

[0038] By adopting the above technical solution, the pressing rod 92 rotates with the rotating shaft 91, and the pressing rod 92 can push the powder into the discharge port of the powder silo 20 to achieve forced discharge to avoid the phenomenon of powder jamming at the discharge port.

[0039] In one embodiment, the press rod 92 is a T-shaped rod body, and multiple press rods 92 are arranged at intervals along the length direction of the rotating shaft 91, and two adjacent press rods 92 are staggered along the circumference of the rotating shaft 91. In this embodiment, the number of press rods 92 is preferably two, and the two press rods 92 have the same structure, both of which are T-shaped rod bodies. Each press rod 92 has a vertical section and a horizontal section that are vertically connected to each other. The base of the vertical section is fixedly connected to the rotating shaft 91, and the top of the vertical section is connected to the horizontal section. The two press rods 92 are arranged at intervals in the length direction of the rotating shaft 91, and are staggered by 180° on the shaft body annular surface of the rotating shaft 91.

[0040] By adopting the above technical solution, the rotation of the rotating shaft 91 can drive the pressing rod 92 connected thereto to rotate, and the pressing rod 92 can squeeze and push the powder to the discharge port during the rotation process to realize the forced discharge of the powder, and the control of the discharge specific gravity of the powder can be realized by controlling the rotation speed; and the collision of the pressing rod 92 with the powder can break up the agglomerated powder. The forced powder feeding mechanism 9 of this embodiment can control the specific gravity of the powder and prevent the agglomeration of the powder from causing the discharge port of the powder bin 20 to fail to discharge the powder.

[0041] In one of the embodiments, the powder spreading assembly further includes a suspended baffle 7, which separates the forward auger 6 from the reverse auger 3, so that an annular circulating feeding channel is formed in the circulating trough 4. Specifically, in the present embodiment, the circulating trough 4 is provided with a suspended baffle 7 arranged along the length direction of the trough body at the middle position of the trough body, and the suspended baffle 7 is arranged between the reverse auger 3 and the forward auger 6 to separate the reverse auger 3 from the forward auger 6 to obtain the forward feeding channel and the reverse feeding channel; the circulating trough 4 is connected at the lower part of the suspended baffle 7 and at the head and tail positions corresponding to the reverse auger 3 and the forward auger 6, and the forward feeding channel, the reverse feeding channel, and the head and tail channels connecting the forward feeding channel and the reverse feeding channel at the head and tail positions together constitute an annular circulating feeding channel.

[0042] By adopting the above technical solution, the suspended partition 7 separates the reverse auger 3 from the forward auger 6 to obtain the forward feeding channel and the reverse feeding channel. The discharge port of the powder bin 20 is directly opposite to the feeding end of the forward auger 6, and the spiral blades on the forward auger 6 are forwardly assembled, so that when the forward auger 6 rotates, the powder material coming out of the powder bin 20 is pushed to the conveyor belt side through the forward feeding channel; and the spiral blades on the reverse auger 3 are reversely assembled, so that when the reverse auger 3 rotates, the excess powder material at the end of the forward feeding channel is pushed to the feeding end of the forward auger 6 through the reverse feeding channel, thereby realizing the annular circulation pushing of the powder material in the circulation trough 4, thereby ensuring that there is a stable amount of powder material to be sprinkled in the circulation trough 4 to ensure the uniformity of powdering.

[0043] In one embodiment, the powder spreading assembly further includes a sieve plate assembly frame 21 and a connector 8. The bottom of the circulating trough 4 has an opening, and the sieve plate assembly frame 21 is detachably assembled on both sides of the opening through the connector 8. The sieve plate assembly frame 21 is provided with an insertion slot, and the sieve plate 25 is inserted into the insertion slot so that the sieve plate 25 is connected and fixed to the sieve plate assembly frame 21. Specifically, in this embodiment, the connector 8 is preferably an assembly buckle. The bottom surface of the trough body of the circulating trough 4 has an open surface with an opening, and three groups of assembly buckles are arranged on both sides of the open surface along the length direction, and the sieve plate assembly is detachably assembled with the assembly buckle, and the sieve plate assembly includes a sieve plate assembly frame 21 and a sieve plate 25. The sieve plate assembly frame 21 fits the open surface of the bottom of the circulating trough 4 on the outside, and a long strip hole is reserved in the middle, and an insertion slot is arranged at the position of the long strip hole.

[0044] By adopting the above technical solution, the corresponding sieve plate 25 can be replaced through the insertion slot, and by replacing different sieve plates 25, it can be used to achieve the powdering operation of powder raw materials with different particle sizes.

[0045] In one embodiment, the powder spreading assembly further includes a spacing adjustment mechanism, which is connected to the roller brush 19 and is used to adjust the spacing between the axis of the roller brush 19 and the sieve plate 25. Specifically, the two ends of the roller brush 19 are assembled on the roller brush shaft assembly frame 24 through the roller brush shaft 23. The roller brush shaft assembly frame 24 is provided with a waist-shaped assembly hole at the assembly position corresponding to the roller brush shaft 23, and a lifting handle is provided at the lower part of the position of the assembly part 10 on the corresponding assembly bracket 1 as a roller brush adjustment arm 18. By adjusting the position of the roller brush adjustment arm 18, the spacing between the roller brush 19 and the sieve plate 25 can be adjusted. By adjusting the roller brush material, size, spacing between the roller brush and the sieve plate, and the size of the sieve holes on the sieve plate, the variety of powdering raw materials can be adjusted, so that powders of different particle sizes or different characteristics can be evenly spread on the surface of the food to be processed or on the conveyor belt.

[0046] By adopting the above technical solution, by adjusting the distance between the roller brush 19 and the sieve plate 25 and replacing the roller brush 19 with different bristles, it can be used for the powdering operation of powder raw materials with different physical properties.

[0047] In one embodiment, the roller brush 19 is detachably connected to the driving part. Specifically, two groups of roller brushes 19 are symmetrically arranged on the surface of the corresponding sieve plate 25, and the two groups of roller brushes 19 are integrally detachable replacement structures.

[0048] By adopting the above technical solution, the roller brush can be detachably connected to the driving part, so as to facilitate the replacement of different types of roller brushes according to different usage requirements.

[0049] In one embodiment, the spiral blades of the forward auger 6 and the spiral blades of the reverse auger 3 are made of stainless steel.

[0050] By adopting the above technical solution, the stainless steel is preferably food-grade stainless steel, which will not contaminate the powder and is strong and durable.

[0051] In one embodiment, the powder silo 20 includes a silo body and a silo cover 2, the silo body has a storage cavity for storing powder and a feeding port connected to the storage cavity, and the silo cover 2 is snapped onto the silo body to close the feeding port. Specifically, the silo cover 2 is a transparent material cover, which can be used to conveniently observe the equipment status in the silo body, isolate and protect the powder material in the silo body from moisture, and prevent foreign matter from falling into the powder in the silo body during operation to contaminate the powder.

[0052] By adopting the above technical solution, the silo cover 2 and the silo body enclose the storage cavity to isolate and protect the powder material in the silo from moisture, and prevent foreign matter from falling into the powder in the silo body during operation and contaminating the powder.

[0053] In one embodiment, the circulating trough includes a trough body and a trough cover 5, the trough body has a conveying trough for accommodating powder and an opening connected to the conveying trough, and the trough cover 5 is snapped onto the trough body to close the opening. Specifically, the trough cover 5 is a transparent material cover, which can be used to conveniently observe the equipment status in the trough body, isolate and protect the powder material in the trough body from moisture, and prevent foreign matter from falling into the powder in the trough body during operation to contaminate the powder.

[0054] By adopting the above technical solution, the trough cover plate 5 and the trough body are combined to close the conveying trough to isolate and protect the powder material in the trough body from moisture, and prevent foreign matter from falling into the powder in the trough body during operation and contaminating the powder.

[0055] In one embodiment, the driving part includes an electronic control unit 11, a main switch 12, a driving pulley group 13, a pulley group assembly frame 14, a reducer 15, a driving motor 16 and a bearing seat 17; specifically, a component cavity is separated by a partition on the left side of the assembly bracket 1, and a driving motor 16 is installed in the component cavity as a power unit, and an electronic control unit 11 is provided as a control end, and the driving motor 16 is powered by an external power line, and the main switch 12 is connected to the power supply circuit to control the on and off of the circuit. A bearing seat 17 is connected to the output end of the driving motor 16 through a reducer 15, and the bearing seat 17 is connected to the driving pulley group 13 at the output end through a pulley group assembly frame 14. In the present embodiment, a driving wheel and a plurality of synchronous wheels connected to the driving wheel through a belt are provided in the driving pulley group 13. The driving wheel is connected to the output end of the bearing seat 17. The rotation of the driving motor 16 can drive the driving wheel to rotate. Different synchronous wheels are respectively connected to the roller brush roller shaft 23, the auger shaft of the reverse auger, the auger shaft of the forward auger and the shaft 91, so that the synchronous drive of the roller brush 19, the reverse auger 3, the forward auger 6 and the forced powder feeding mechanism 9 can be realized under the driving force of the driving motor 16 through the cooperation of the synchronous wheels in the driving pulley group 13 and the transmission belt.

[0056] In this embodiment, the transmission ratios of the different synchronous wheels in the driving pulley group 13 can be adjusted by engineers according to specific requirements. In addition, the corresponding driving motor 16 can also adopt a variable frequency stepless speed regulating motor to cooperate with the driving pulley group 13 to control the powder spreading amount and powder spreading speed.

[0057] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A food powder sprinkling device, characterized in that: include: An assembly bracket having an assembly portion for fixing to a side of a conveyor belt; A powder material silo, connected to the assembly bracket, for storing powder materials; The powder spreading assembly comprises a circulation trough, a sieve plate, a roller brush, a driving unit, a forward auger and a reverse auger, the end of the circulation trough being fixedly connected to the assembly bracket so that the circulation trough is located above the conveyor belt after the assembly bracket is assembled on the side of the conveyor belt, a forward auger and a reverse auger are arranged at intervals in the circulation trough, the spiral blades of the forward auger and the reverse auger are installed in opposite directions, the feeding end of the forward auger is arranged below the discharge port of the powder silo, a sieve plate is arranged at the bottom of the circulation trough corresponding to the width direction of the conveyor belt, the roller brush is arranged above the sieve plate and the bristles of the roller brush can act on the surface of the sieve plate, the driving unit is connected to the assembly bracket, the roller brush, the forward auger and the reverse auger are respectively connected to the driving unit, and the driving unit can drive the roller brush, the forward auger and the reverse auger to rotate.

2. The food powder sprinkling device according to claim 1, characterized in that: The food powder sprinkling device further comprises a forced powder feeding mechanism, which comprises a rotating shaft and a plurality of pressing rods connected to the circumference of the rotating shaft. The rotating shaft is arranged in the powder material bin and connected to the driving part.

3. The food powder sprinkling device according to claim 2, characterized in that: The pressing rod is a T-shaped rod body, a plurality of pressing rods are arranged at intervals along the length direction of the rotating shaft, and two adjacent pressing rods are staggered along the circumference of the rotating shaft.

4. The food powder sprinkling device according to claim 1, characterized in that: The powder spreading assembly further comprises a suspended baffle, which separates the forward auger from the reverse auger, so as to form an annular circulating feeding channel in the circulating trough.

5. The food powder sprinkling device according to claim 1, characterized in that: The powder spreading assembly also includes a sieve plate assembly frame and a connecting piece. The bottom of the circulating material trough has an opening, and the sieve plate assembly frame is detachably assembled on both sides of the opening through the connecting piece. The sieve plate assembly frame is provided with an insertion groove, and the sieve plate is inserted into the insertion groove so that the sieve plate is connected and fixed to the sieve plate assembly frame.

6. The food powder sprinkling device according to claim 1, characterized in that: The powder spreading assembly further comprises a spacing adjustment mechanism, which is connected to the roller brush and is used to adjust the spacing between the axis of the roller brush and the screen plate.

7. The food powder sprinkling device according to claim 1, characterized in that: The roller brush is detachably connected to the driving part.

8. The food powder sprinkling device according to claim 1, characterized in that: The material of the spiral blades of the forward auger and the spiral blades of the reverse auger is stainless steel.

9. The food powder sprinkling device according to claim 1, characterized in that: The powder silo comprises a silo body and a silo cover plate, wherein the silo body has a storage cavity for storing powder and a feeding port communicated with the storage cavity, and the silo cover plate is snap-connected to the silo body to close the feeding port.

10. The food powder sprinkling device according to claim 1, characterized in that: The circulating trough comprises a trough body and a trough cover plate, wherein the trough body has a conveying trough for accommodating powder and an opening communicated with the conveying trough, and the trough cover plate is snap-connected to the trough body to close the opening.

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