A device for uniform dusting

Abstract

The application relates to the technical field of bread production and processing equipment, in particular to a device for uniformly scattering powder, which comprises a rack, a conveying belt for conveying dough is arranged on the rack, a driving assembly for driving the conveying belt to move is arranged on the rack, a hollow mesh is arranged on the conveying belt and used for allowing the flour to pass through, a negative pressure integrated cover is arranged below the conveying belt, a fixing frame is connected to the rack, a guide pipe is fixedly arranged on the fixing frame, the guide pipe is located above the conveying belt, a protective cover which can be arranged around the dough is slidably sleeved with the guide pipe, a lifting assembly for driving the protective cover to lift is arranged on the fixing frame, a hopper is connected to the fixing frame, and a powder scattering mechanism for crushing powder particles and uniformly scattering powder is arranged between the hopper and the guide pipe. The application can improve the problems of uneven manual powder scattering and safety hidden troubles of open powder scattering.

Description

Technical Field

[0001] This utility model relates to the technical field of bread production and processing equipment, and in particular to a device for evenly sprinkling flour. Background Technology

[0002] In the industrial production of pasta (such as bread, pizza, and noodles), dusting the dough with flour is a crucial step to prevent sticking. Traditional flour-dusting methods have the following drawbacks:

[0003] Uneven flour application by hand: When workers apply flour by hand with a sieve, the flour tends to accumulate in localized areas of the dough (with large thickness variations), resulting in uneven heating during baking and the appearance of color spots or a hard crust; uncovered areas will also become sticky and damaged, reducing the yield of finished products.

[0004] Severe dust pollution: Open-air dust spreading leads to PM2.5 concentrations exceeding standards in the workshop, endangering worker health and posing a dust explosion hazard (the minimum explosive concentration of flour is 50g / m³). 3 ). Utility Model Content

[0005] To address the issues of uneven powder application by manual powder application and safety hazards associated with open powder application methods, this application provides a device for uniform powder application.

[0006] The device for uniformly spreading powder provided in this application adopts the following technical solution:

[0007] A device for evenly distributing flour includes a frame, a conveyor belt for conveying dough on the frame, a drive assembly for moving the conveyor belt on the frame, perforated mesh openings on the conveyor belt for flour to pass through, a negative pressure integrated cover below the conveyor belt, a fixed frame connected to the frame, a guide pipe fixedly mounted on the fixed frame, the guide pipe being located above the conveyor belt, a protective cover slidably fitted around the dough on the outside of the guide pipe, a lifting assembly for driving the protective cover to rise and fall on the fixed frame, a hopper connected to the fixed frame, and a flour distributing mechanism for crushing flour particles and evenly distributing flour between the hopper and the guide pipe.

[0008] Preferably, the drive assembly includes a drive roller, a driven roller, and a drive motor. The drive roller and the driven roller are both connected to the frame and are located at opposite ends of the frame. The conveyor belt is wound between the drive roller and the driven roller. The drive motor is connected to the frame, and the output shaft of the drive motor is coaxially connected to the roller shaft of the drive roller via a coupling.

[0009] Preferably, the negative pressure integrated cover is externally connected to a dust collection device via a pipe.

[0010] Preferably, the lifting assembly includes a first fixed plate, a lifting cylinder, and a connecting plate. The first fixed plate is connected to a fixed frame, the lifting cylinder is mounted on the first fixed plate and is arranged in a vertical direction, the connecting plate is connected to a protective cover, and the piston rod of the lifting cylinder passes through the first fixed plate and is connected to the connecting plate.

[0011] Preferably, the powder-spreading mechanism includes a connecting pipe, a first bearing, a second bearing, a rotating pipe, crushing bristles, a driving pulley, a driven pulley, a track, and a rotating motor. The connecting pipe is connected to the hopper outlet, the first bearing is connected to the connecting pipe, the second bearing is connected to the guide pipe, the rotating pipe is connected between the first bearing and the second bearing, the crushing bristles are connected inside the rotating pipe, and a plurality of crushing bristles are spirally arranged along the length of the rotating pipe, the driven pulley is connected to the rotating pipe, a second fixing plate is connected to the fixing frame, the rotating motor is connected to the second fixing plate, the driving pulley is connected to the end of the rotating motor's output shaft that passes through the second fixing plate, and the track is tensioned and wound between the driving pulley and the driven pulley.

[0012] Preferably, a solenoid valve is connected to the connecting pipe.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This utility model provides a device for evenly spreading flour. The flour spreading mechanism dynamically crushes the flour clumps and spreads the flour evenly during the falling process, solving the problem of local accumulation of flour when spreading it manually. The guide pipe and the protective cover work together to ensure that the powder mist accurately covers the surface of the dough without blind spots. The fully enclosed protective cover and the negative pressure integrated cover provide double protection. The lifting protective cover isolates the spread of dust, and the negative pressure system (with external dust collection equipment) captures the scattered powder particles in real time. Thus, it achieves the effect of improving the unevenness of manual flour spreading and the safety hazards of open flour spreading. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the device for uniformly spreading powder in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram illustrating the powder-spraying mechanism in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram illustrating the crushing of brush bristles in an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Conveyor belt; 3. Drive assembly; 31. Drive roller; 32. Driven roller; 33. Drive motor; 4. Hollow mesh; 5. Negative pressure integrated cover; 6. Fixing frame; 61. Guide pipe; 62. Protective cover; 7. Lifting assembly; 71. First fixing plate; 72. Lifting cylinder; 73. Connecting plate; 8. Hopper; 9. Powder spreading mechanism; 91. Connecting pipe; 911. Solenoid valve; 92. First bearing; 93. Second bearing; 94. Rotating pipe; 95. Crushing brush; 96. Drive pulley; 97. Driven pulley; 98. Track; 99. Rotating motor. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] This application discloses an apparatus for uniformly distributing powder. (Refer to...) Figure 1 , Figure 2 and Figure 3The device for evenly spreading powder includes a frame 1, a conveyor belt 2 for conveying dough on the frame 1, a drive assembly 3 for driving the conveyor belt 2 to move on the frame 1, perforated mesh holes 4 for flour to pass through on the conveyor belt 2, a negative pressure integrated cover 5 below the conveyor belt 2, a fixed frame 6 connected to the frame 1, a guide pipe 61 fixedly mounted on the fixed frame 6, the guide pipe 61 being located above the conveyor belt 2, a protective cover 62 that can be slidably fitted around the dough on the outside of the guide pipe 61, a lifting assembly 7 for driving the protective cover 62 to rise and fall on the fixed frame 6, a hopper 8 connected to the fixed frame 6, and a powder spreading mechanism 9 for crushing powder particles and evenly spreading powder between the hopper 8 and the guide pipe 61.

[0022] Among them, the negative pressure integrated cover 5 is connected to a dust collection device through a pipe.

[0023] The powder-spreading mechanism 9 dynamically crushes the powder clumps and evenly distributes the powder during the falling process, solving the problem of localized accumulation of powder during manual powder spreading. The guide pipe 61 and the protective cover 62 work together to ensure that the powder mist accurately covers the surface of the dough without blind spots. The fully enclosed protective cover 62, together with the negative pressure integrated cover 5, provides dual-level protection. The lifting protective cover 62 isolates the spread of dust, and the negative pressure system (external dust collection equipment) captures the scattered powder particles in real time.

[0024] The drive assembly 3 includes a drive roller 31, a driven roller 32, and a drive motor 33. The drive roller 31 and the driven roller 32 are both connected to the frame 1. The drive roller 31 and the driven roller 32 are located at opposite ends of the frame 1. The conveyor belt 2 is wound between the drive roller 31 and the driven roller 32. The drive motor 33 is connected to the frame 1. The output shaft of the drive motor 33 is coaxially connected to the roller shaft of the drive roller 31 through a coupling.

[0025] The lifting assembly 7 includes a first fixed plate 71, a lifting cylinder 72, and a connecting plate 73. The first fixed plate 71 is connected to the fixed frame 6. The lifting cylinder 72 is installed on the first fixed plate 71 and is arranged in a vertical direction. The connecting plate 73 is connected to the protective cover 62. The piston rod of the lifting cylinder 72 passes through the first fixed plate 71 and is connected to the connecting plate 73.

[0026] The powder-spreading mechanism 9 includes a connecting pipe 91, a first bearing 92, a second bearing 93, a rotating pipe 94, crushing brushes 95, a driving pulley 96, a driven pulley 97, a track 98, and a rotating motor 99. The connecting pipe 91 is connected to the outlet of the hopper 8. The first bearing 92 is connected to the connecting pipe 91. The second bearing 93 is connected to the guide pipe 61. The rotating pipe 94 is connected between the first bearing 92 and the second bearing 93. The crushing brushes 95 are connected inside the rotating pipe 94 and are arranged in a spiral along the length of the rotating pipe 94. The driven pulley 97 is connected to the rotating pipe 94. A second fixed plate is connected to the fixed frame 6. The rotating motor 99 is connected to the second fixed plate. The driving pulley 96 is connected to the end of the output shaft of the rotating motor that passes through the second fixed plate. The track 98 is tensioned and wound between the driving pulley 96 and the driven pulley 97.

[0027] A solenoid valve 911 is connected to the connecting pipe 91, and the solenoid valve 911 intelligently regulates the powder amount.

[0028] The implementation principle of the uniform powder-spreading device in this application embodiment is as follows:

[0029] Step 1: Initialization settings

[0030] Start the vacuum cleaner and confirm that the negative pressure integrated cover 5 pipe is unobstructed;

[0031] Add flour to hopper 8 and set the opening and closing frequency of solenoid valve 911 (adjust the amount of flour according to the size of the dough).

[0032] Step 2: Production line coordinated operation

[0033] transport stage

[0034] Drive motor 33 starts, and conveyor belt 2 (with hollow mesh 4 design) carries dough through the area below protective cover 62 at a uniform speed, stopping when the dough reaches the area below powdering mechanism 9;

[0035] Sealing and protection

[0036] The lifting cylinder 72 drives the protective cover 62 to descend, covering the outside of the dough to form a sealed chamber (preventing dust from escaping).

[0037] Intelligent powder dispensing

[0038] The rotating motor 99 drives the drive pulley 96 to rotate, and the drive pulley 96 drives the driven pulley 97 and the rotating tube 94 to rotate at high speed through the track 98.

[0039] When the solenoid valve 911 is opened, the powder enters the rotating tube 94 through the connecting pipe 91. The spirally arranged crushing bristles 95 break up the powder clumps, and the powder mist is evenly sprinkled through the guide pipe 61.

[0040] Excess powder passes through the mesh of the conveyor belt and is instantly sucked up and recycled by the negative pressure cover;

[0041] Reset Cycle

[0042] After the powder is sprinkled, the lifting cylinder 72 raises the protective cover 62, the device resets and stands by, and the conveyor belt 2 carries the dough away.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A device for evenly distributing powder, characterized in that: The system includes a frame (1), on which a conveyor belt (2) for conveying dough is provided. A drive assembly (3) for driving the conveyor belt (2) to move is provided on the frame (1). The conveyor belt (2) has perforated mesh holes (4) for flour to pass through. A negative pressure integrated cover (5) is provided below the conveyor belt (2). A fixed frame (6) is connected to the frame (1). A guide pipe (61) is fixedly provided on the fixed frame (6). The guide pipe (61) is located above the conveyor belt (2). A protective cover (62) that can be covered around the dough is slidably sleeved on the outside of the guide pipe (61). A lifting assembly (7) for driving the protective cover (62) to rise and fall is provided on the fixed frame (6). A hopper (8) is connected to the fixed frame (6). A powder-spreading mechanism (9) for crushing dough particles and spreading powder evenly is provided between the hopper (8) and the guide pipe (61).

2. The device for uniformly spreading powder according to claim 1, characterized in that: The drive assembly (3) includes a drive roller (31), a driven roller (32), and a drive motor (33). The drive roller (31) and the driven roller (32) are both connected to the frame (1). The drive roller (31) and the driven roller (32) are located at opposite ends of the frame (1). The conveyor belt (2) is wound between the drive roller (31) and the driven roller (32). The drive motor (33) is connected to the frame (1). The output shaft of the drive motor (33) is coaxially connected to the roller shaft of the drive roller (31) through a coupling.

3. The device for uniformly spreading powder according to claim 1, characterized in that: The negative pressure integrated cover (5) is connected to a dust collection device via a pipe.

4. The device for uniformly spreading powder according to claim 1, characterized in that: The lifting assembly (7) includes a first fixed plate (71), a lifting cylinder (72), and a connecting plate (73). The first fixed plate (71) is connected to the fixed frame (6). The lifting cylinder (72) is installed on the first fixed plate (71) and is arranged in a vertical direction. The connecting plate (73) is connected to the protective cover (62). The piston rod of the lifting cylinder (72) passes through the first fixed plate (71) and is connected to the connecting plate (73).

5. The device for uniformly spreading powder according to claim 1, characterized in that: The powder-spreading mechanism (9) includes a connecting pipe (91), a first bearing (92), a second bearing (93), a rotating pipe (94), a crushing brush (95), a driving pulley (96), a driven pulley (97), a track (98), and a rotating motor (99). The connecting pipe (91) is connected to the outlet of the hopper (8), the first bearing (92) is connected to the connecting pipe (91), the second bearing (93) is connected to the guide pipe (61), and the rotating pipe (94) is connected between the first bearing (92) and the second bearing (93). The crushing bristles (95) are connected inside the rotating tube (94). Several crushing bristles (95) are arranged spirally along the length of the rotating tube (94). The driven pulley (97) is connected to the rotating tube (94). A second fixed plate is connected to the fixed frame (6). The rotating motor (99) is connected to the second fixed plate. The driving pulley (96) is connected to the end of the output shaft of the rotating motor that passes through the second fixed plate. The track (98) is tensioned and wound between the driving pulley (96) and the driven pulley (97).

6. The device for uniformly spreading powder according to claim 5, characterized in that: A solenoid valve (911) is connected to the connecting pipe (91).

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