Powder feeder for spraying

Abstract

The utility model belongs to the technical field of spraying, and particularly relates to a powder feeder for spraying. Comprising a conveying stand column, a conveying mechanism connected to the top of the conveying stand column, a discharging arm transversely extending out of the conveying mechanism, spiral conveying rollers arranged in the conveying stand column and the discharging arm and a treatment box connected with the bottom of the conveying stand column, and the treatment box supplies materials to the conveying stand column; a box cover is arranged on the treatment box, and a plurality of treatment parts are arranged in the treatment box; the treatment component comprises at least one group of rotating shafts with blades, and the rotating shafts rotate under the driving of the power mechanism and are used for stirring and mixing the materials in the treatment box. The utility model provides a powder feeder for spraying, which has a powder processing function and can realize mixing and stirring before powder feeding.

Description

Technical Field

[0001] This utility model belongs to the field of spraying technology, and in particular relates to a powder feeder for spraying. Background Technology

[0002] In the field of modern spraying technology, the powder feeder is one of the key pieces of equipment for achieving powder spraying, and its performance directly affects the spraying quality and efficiency.

[0003] Currently, most commercially available powder feeders primarily function to transport powder from a storage container to the spray gun. However, in practical applications, powder pretreatment is often required, such as mixing powders of different compositions or agitating a single powder to make it loose and uniform, in order to meet specific spraying needs. Existing powder feeders generally lack the capability to perform such powder treatments, necessitating the use of specialized mixing and agitation equipment for powder pretreatment before feeding.

[0004] This reliance on additional equipment increases the complexity of the production process, extends the production cycle, and raises time costs. Furthermore, the use of multiple devices not only occupies more production space but also increases the costs of equipment procurement, installation, and maintenance. In addition, powder loss and contamination may occur during powder transfer, further affecting the stability of the coating quality. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a powder feeder for spraying that has powder handling capabilities and can achieve mixing and stirring before powder feeding.

[0006] In view of this, the present invention provides a powder feeder for spraying, including a conveying column, a conveying mechanism connected to the top of the conveying column, a discharge arm extending laterally from the conveying mechanism, a spiral conveying roller inside both the conveying column and the discharge arm, and a processing box connected to the bottom of the conveying column, the processing box supplying material to the conveying column; the processing box is provided with a box cover, and a plurality of processing components are arranged inside the processing box.

[0007] The processing unit includes at least one set of bladed shafts that rotate under the drive of a power mechanism to stir and mix the materials in the processing tank.

[0008] In the above technical solution, the power mechanism further includes:

[0009] Synchronous motor, located at the bottom of the processing box;

[0010] Synchronizing pulleys are mounted on the output shaft and rotating shaft of the synchronous motor.

[0011] A timing belt is fitted between two timing pulleys;

[0012] The machine cover is installed on the outside of the processing box and covers the synchronous motor, synchronous pulley and synchronous belt.

[0013] In any of the above technical solutions, a transmission shaft is provided inside the processing box, a first spiral feeding roller is provided on the transmission shaft, and a discharge port is provided on the bottom right side of the processing box. The discharge port is connected to the conveying column, and the first spiral feeding roller feeds the powder from the discharge port into the conveying column. Pulleys are provided on the rotating shaft and the transmission shaft, and a flat belt is sleeved between the two pulleys.

[0014] In any of the above technical solutions, a protective mesh screen is further provided inside the processing box to prevent items or personnel from coming into contact with the blades inside the processing box, to prevent items from falling into the processing box, and to protect the personnel.

[0015] In any of the above technical solutions, furthermore, the inside of the processing box is provided with support buckles around the perimeter, and the protective screen is placed in the support buckles, making it convenient to take the protective screen out and put it in.

[0016] In any of the above technical solutions, further, the lid is connected to the processing box via a movable connection assembly, the movable connection assembly including:

[0017] Hinges are located at both ends of the outer side of the processing box, and the two hinges are connected to the box cover;

[0018] The support frame is located on the left and right sides inside the processing box;

[0019] A fixed shaft is mounted on a bracket.

[0020] The rotating plate is rotatably mounted on the fixed shaft;

[0021] A fixed cylinder is mounted on the rotating plate;

[0022] The guide rod is slidably disposed inside the fixed cylinder and passes through the fixed cylinder;

[0023] The mounting brackets are located on both sides inside the box lid;

[0024] The connecting shaft plate is rotatably mounted on the fixed frame, and the connecting shaft plate is connected to the guide rod;

[0025] The handle is located on the outside of the lid.

[0026] In any of the above technical solutions, the conveying mechanism further includes:

[0027] A vertical housing is installed on top of the conveyor column, and a storage bin is opened inside the vertical housing;

[0028] The rotating rod is rotatably mounted inside the vertical housing, with one end penetrating through the vertical housing;

[0029] The first rotating pusher plate is mounted on the rotating rod and is used to push the powder in the storage bin;

[0030] The discharge port is located at the bottom front of the vertical shell and is connected to the storage bin of the vertical shell.

[0031] The connecting shell is located at the bottom of the vertical housing and is connected to the discharge port;

[0032] A through groove is provided on the right side of the connecting shell, and the through groove is connected to the connecting shell;

[0033] The second spiral feed roller is rotatably installed inside the connecting shell and is used to push the powder from the axial direction of the connecting shell.

[0034] A horizontal outer shell is located on the right side of the connecting shell, and the horizontal outer shell is connected to the through groove of the connecting shell;

[0035] The second rotating push plate is rotatably installed inside the horizontal housing;

[0036] The feeding hopper is located at the bottom of the horizontal housing and is connected to the discharge arm;

[0037] The power source provides power to drive the rotating rod, the second spiral feed roller, and the second rotating push plate to rotate.

[0038] The beneficial effects of this utility model are:

[0039] 1. The processing component inside the processing box, namely the bladed rotating shaft, rotates under the drive of the power mechanism, which can stir and mix the powder inside the box, so that the powders of different components are evenly mixed to meet the requirements of specific spraying for powder state.

[0040] 2. While the powder is being stirred and mixed, the first spiral feeding roller continues to rotate, pushing the powder out of the discharge port. Since the discharge port is connected to the conveying column, the powder smoothly enters the conveying column. This achieves efficient conveying of the powder in the processing box and coordinated operation with the stirring action of the rotating shaft, ensuring that the powder after stirring and mixing can smoothly and quantitatively enter the conveying column, providing a stable powder supply for the subsequent powder feeding process.

[0041] 3. Install a protective screen inside the powder feeder's processing box to create a safety barrier and prevent unrelated objects from accidentally falling into the processing box. This will prevent these objects from interfering with the powder processing process, such as jamming the blades and causing equipment malfunction, or mixing in powder and affecting the spraying quality. At the same time, it will provide protection for workers when they are operating the equipment, preventing their limbs from accidentally coming into contact with the high-speed rotating blades and being injured. This will ensure the safety and stability of the equipment operation in all aspects.

[0042] 4. The hinges provide a basic pivot point for the lid, allowing for easy opening and closing of the lid and facilitating operations such as adding materials, maintenance, or cleaning inside the processing chamber. Furthermore, the interconnections between the rotating plate, fixed cylinder, guide rod, and connecting shaft plate enhance the stability of the connection between the lid and the processing chamber, preventing powder leakage and ensuring a stable working environment inside the processing chamber.

[0043] 5. By constructing an efficient and orderly powder conveying link through the conveying mechanism, the powder from the conveying column is accurately and stably conveyed to the discharge arm, and finally the powder is supplied to the spraying equipment, which meets the requirements of different spraying processes for powder conveying volume and conveying speed, and improves the quality and efficiency of spraying operations. Attached Figure Description

[0044] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0045] Figure 2 This is a three-dimensional structural schematic diagram of the first part of this utility model;

[0046] Figure 3 This is a three-dimensional structural diagram of the second part of this utility model;

[0047] Figure 4 This is a three-dimensional structural schematic diagram of the third part of this utility model;

[0048] The attached figures are labeled as follows: 1. Conveying column; 2. Conveying mechanism; 21. Vertical outer casing; 22. Storage bin; 23. Rotating rod; 24. First rotating push plate; 25. Discharge port; 26. Connecting shell; 27. Through groove; 28. Second spiral feeding roller; 29. ​​Horizontal outer casing; 210. Second rotating push plate; 211. Discharge hopper; 212. Power source; 3. Discharge arm; 4. Spiral conveying roller; 5. Processing box; 51. Box cover; 52. Rotating shaft; 53. Blade; 6. Power source. Mechanism; 61. Synchronous motor; 62. Synchronous pulley; 63. Synchronous belt; 64. Machine cover; 7. Drive shaft; 71. First spiral feed roller; 72. Discharge port; 73. Pulley; 74. Flat belt; 8. Protective screen; 9. Support buckle; 10. Movable connecting assembly; 101. Hinge; 102. Bracket; 103. Fixed shaft; 104. Turning plate; 105. Fixed cylinder; 106. Guide rod; 107. Fixed frame; 1071. Connecting shaft plate; 108. Handle. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0050] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0051] Example 1:

[0052] like Figures 1-3 As shown, this embodiment provides a powder feeder for spraying, including a conveying column 1, a conveying mechanism 2 connected to the top of the conveying column 1, a discharge arm 3 extending laterally from the conveying mechanism 2, a spiral conveying roller 4 inside both the conveying column 1 and the discharge arm 3, and a processing box 5 connected to the bottom of the conveying column 1. The processing box 5 supplies material to the conveying column 1. The processing box 5 is provided with a box cover 51, and a plurality of processing components are arranged inside the processing box 5.

[0053] The processing unit includes at least one set of rotating shafts 52 with blades 53, which rotate under the drive of the power mechanism 6 to stir and mix the materials in the processing tank 5.

[0054] In this technical solution, the processing component inside the processing box 5, namely the rotating shaft 52 with blades 53, rotates under the drive of the power mechanism 6, which can stir and mix the powder inside the box, so that the powders of different components are uniformly mixed, or the single powder is loose and uniform, to meet the requirements of specific spraying for powder state. The spiral conveying roller 4 inside the conveying column 1 and the discharge arm 3 can lift the powder that has been stirred and mixed in the processing box 5 along the conveying column 1 and transport it to the spraying position through the discharge arm 3, so as to realize the directional and quantitative conveying of powder.

[0055] Workflow: Open the lid 51 of the processing tank 5 and place the powder to be sprayed (which may be a single powder or multiple powders) into the processing tank 5. After closing the lid 51, the power mechanism 6 starts, driving the rotating shaft 52 of the processing component to rotate. The blades 53 on the rotating shaft 52 stir and mix the powder in the tank, making the powder reach the required uniform state. After processing, the powder in the processing tank 5 enters the conveying column 1. The spiral conveying roller 4 in the conveying column 1 rotates under the drive of the corresponding power device, lifting the powder upward along the column. After the powder reaches the conveying mechanism 2, it enters the horizontal discharge arm 3. The spiral conveying roller 4 in the discharge arm 3 continues to rotate, conveying the powder to the corresponding position of the spraying equipment for spraying operations. By integrating the stirring and mixing function, the production process is simplified, the spraying quality and efficiency are improved, and the production cost is reduced.

[0056] like Figures 1-3 As shown, in this embodiment, the optimized power mechanism 6 includes:

[0057] Synchronous motor 61 is located at the bottom of processing box 5;

[0058] Synchronous pulley 62 is mounted on the output shaft and rotating shaft 52 of synchronous motor 61;

[0059] A timing belt 63 is fitted between two timing pulleys 62;

[0060] The cover 64 is installed on the outside of the processing box 5 and covers the synchronous motor 61, synchronous pulley 62 and synchronous belt 63.

[0061] In this technical solution, the synchronous motor 61 serves as the power source 212, capable of outputting stable speed and torque, providing the power foundation for the entire power transmission system. The synchronous pulleys 62, mounted on the output shaft and rotating shaft 52 of the synchronous motor 61, achieve synchronous power transmission via the synchronous belt 63 fitted between them, ensuring that each rotating shaft 52 rotates at the same speed, thereby ensuring uniform stirring and mixing of the powder within the processing chamber 5. The cover 64 installed on the outside of the processing chamber 5 covers the synchronous motor 61, synchronous pulleys 62, and synchronous belt 63, providing protection against dust and powder entering the transmission components, reducing wear, extending equipment lifespan, and ensuring operator safety.

[0062] Workflow: When the powder feeder for spraying starts working and needs to mix the powder in the processing chamber 5, the synchronous motor 61 starts, and the motor output shaft begins to rotate. The synchronous pulley 62 on the output shaft of the synchronous motor 61 rotates with the motor, transmitting the rotational power to the synchronous pulley 62 on the rotating shaft 52 via the synchronous belt 63, thereby driving the rotating shaft 52 to rotate. Due to the transmission characteristics of the synchronous belt 63, it can ensure that the synchronous pulleys 62 on each rotating shaft 52 rotate synchronously, so that all rotating shafts 52 rotate at the same speed. The rotating shaft 52 drives the blades 53 on it to rotate continuously, stirring and mixing the powder in the processing chamber 5 to achieve the purpose of uniform powder. Throughout the working process, the cover 64 protects the internal power transmission components, ensuring the stable operation of the power mechanism 6. This provides stable and synchronous power to the rotating shaft 52 in the processing chamber 5, ensuring that the blades 53 can continuously and efficiently stir and mix the powder, thereby ensuring the stable realization of the overall function of the powder feeder for spraying, improving the powder pretreatment effect and spraying quality.

[0063] Example 2:

[0064] This embodiment provides a powder feeder for spraying, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] like Figures 1-3 As shown, in this embodiment, the optimized processing box 5 is provided with a drive shaft 7 inside, and a first spiral feeding roller 71 is provided on the drive shaft 7. A discharge port 72 is provided on the bottom right side of the processing box 5. The discharge port 72 is connected to the conveying column 1. The first spiral feeding roller 71 feeds the powder from the discharge port 72 into the conveying column 1. The rotating shaft 52 and the drive shaft 7 are provided with pulleys 73, and a flat belt 74 is sleeved between the two pulleys 73.

[0066] In this technical solution, the drive shaft 7 and the first spiral feeding roller 71 inside the processing box 5 undertake the key task of conveying the powder inside the processing box 5 to the discharge port 72. During rotation, the first spiral feeding roller 71, through the pushing action of the spiral blades 53, conveys the powder from the bottom of the processing box 5 towards the discharge port 72, achieving directional movement of the powder. The pulleys 73 on the rotating shaft 52 and the drive shaft 7, along with the flat belt 74 fitted between them, constitute the power transmission link. This structure allows the rotating shaft 52, driven by the power mechanism 6, to transmit part of the power to the drive shaft 7 through the pulleys 73 and the flat belt 74, thereby driving the first spiral feeding roller 71 to rotate. In this way, the powder mixing and conveying processes are carried out in tandem, ensuring the continuity of powder processing and output within the processing box 5. The discharge port 72 on the bottom right side of the processing box 5 serves as the channel for powder to enter the conveying column 1 from the processing box 5, connecting with the conveying column 1 to ensure a smooth powder conveying path and providing a foundation for the stable operation of the entire powder conveying system.

[0067] Workflow: When the powder feeder for spraying is started, the power mechanism 6 drives the rotating shaft 52 to rotate, stirring and mixing the powder in the processing box 5. Simultaneously, the pulley 73 on the rotating shaft 52 rotates along with it. As the pulley 73 rotates, power is transmitted to the pulley 73 on the drive shaft 7 via the flat belt 74, causing the drive shaft 7 to rotate, which in turn drives the first spiral feed roller 71 to rotate. At this time, while the powder is being stirred and mixed, it begins to be pushed towards the discharge port 72 by the first spiral feed roller 71. The first spiral feed roller 71 continues to rotate, continuously pushing the powder out of the discharge port 72. Since the discharge port 72 is connected to the conveying column 1, the powder smoothly enters the conveying column 1. Inside the conveying column 1, the powder will continue to be conveyed upwards by the subsequent spiral conveying roller 4, completing the powder relay conveying link in the entire powder feeding process. Throughout the entire process, the stirring and conveying actions work together to continuously and stably supply pre-treated powder to the spraying stage. This achieves efficient powder delivery within the processing box 5 and coordinated operation with the stirring action of the rotating shaft 52, ensuring that the powder after stirring and mixing can smoothly and quantitatively enter the conveying column 1, providing a stable powder supply for the subsequent powder feeding process, thereby improving the working efficiency and stability of the entire powder feeder for spraying.

[0068] Example 3:

[0069] This embodiment provides a powder feeder for spraying, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0070] like Figure 1 and Figure 2 As shown, in this embodiment, the processing box 5 is optimized to have a protective mesh screen 8 inside, which is used to block items or personnel from coming into contact with the blades 53 inside the processing box 5, prevent items from falling into the processing box 5, and protect the personnel.

[0071] In this technical solution, the protective screen 8 has a mesh structure with a specific aperture, which can effectively block larger foreign objects from entering the processing chamber 5. Whether during normal equipment operation or in the presence of debris in the surrounding environment, the protective screen 8 can intercept potentially falling tools, parts, and other items, preventing them from falling into the processing chamber 5 and ensuring a clean powder processing environment. When personnel approach the processing chamber 5 for equipment inspection, maintenance, or other related operations, the protective screen 8 acts as a physical barrier, preventing personnel from getting close to the rotating blades 53. Even in the event of misoperation or accidental slip, the protective screen 8 greatly reduces the risk of direct contact with dangerous moving parts, ensuring the personal safety of personnel.

[0072] Workflow: Before starting the powder feeder for spraying, staff check whether the protective screen 8 is securely installed and whether its mesh is damaged or deformed. If any problems are found, they are repaired or replaced promptly to ensure that the protective screen 8 can function properly. After the equipment starts, the blades 53 inside the processing box 5 begin to rotate at high speed under the drive of the power mechanism 6. At this time, the protective screen 8 is always in working condition, providing protection for the processing box 5. If any external objects are accidentally dropped, the mesh structure of the protective screen 8 will intercept them, preventing them from entering the processing box 5. At the same time, when staff move around the equipment, the protective screen 8 also constantly prevents staff from contacting the blades 53, ensuring personnel safety. Only after the maintenance work is completed and the equipment safety is confirmed will the protective screen 8 enter the next cycle.

[0073] like Figure 2 As shown, in this embodiment, the processing box 5 is optimized by having support buckles 9 around its interior, and the protective screen 8 is placed in the support buckles 9, making it convenient to put the protective screen 8 away.

[0074] In this technical solution, support buckles 9 are installed around the inside of the processing box 5 to hold the protective screen 8. The core purpose is to ensure that the protective screen 8 effectively performs its protective function while greatly improving the ease of its installation and disassembly. This not only facilitates the inspection, cleaning, and replacement of the protective screen 8 during routine equipment maintenance, but also ensures that the protective screen 8 can be quickly removed when deep repairs or adjustments are needed inside the processing box 5, thereby improving the overall maintenance efficiency of the equipment, reducing maintenance costs, and further ensuring the stable operation of the equipment.

[0075] The support buckle 9 provides precise positioning and installation for the protective screen 8. Workers simply align the protective screen 8 with the support buckle 9 around the processing box 5 and gently place it in place to complete the installation. Compared to traditional, complex fixing methods, this installation method significantly saves installation time and labor costs, allowing the protective screen 8 to be quickly put into use and fulfill its protective function. When cleaning, inspection, or replacement of the protective screen 8 is required, or when maintaining other components inside the processing box 5, workers can easily remove the protective screen 8 from the support buckle 9. Without the need for additional tools or complex procedures, the protective screen 8 can be quickly removed, facilitating subsequent maintenance work and ensuring efficient equipment maintenance. The support buckle 9 is firmly fixed around the inside of the processing box 5, providing stable support for the protective screen 8. During equipment operation, even if vibrations occur inside the processing box 5 due to agitation by the blades 53, the protective screen 8 remains stable under the support of the support buckle 9, continuously fulfilling its function of blocking foreign objects and protecting personnel, ensuring that the safety and stability of the equipment operation are not affected.

[0076] Example 4:

[0077] This embodiment provides a powder feeder for spraying, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0078] like Figure 1 and Figure 2 As shown, in this embodiment, the optimized case cover 51 is connected to the processing box 5 via a movable connection assembly 10, which includes:

[0079] Hinges 101 are located at both ends of the outer side of the processing box 5, and the two hinges 101 are connected to the box cover 51;

[0080] The bracket 102 is located on the left and right sides inside the processing box 5;

[0081] The fixed shaft 103 is mounted on the bracket 102;

[0082] The rotating plate 104 is rotatably mounted on the fixed shaft 103;

[0083] A fixed cylinder 105 is mounted on the rotating plate 104;

[0084] The guide rod 106 is slidably disposed inside the fixed cylinder 105 and passes through the fixed cylinder 105;

[0085] The fixing bracket 107 is located on both sides inside the box cover 51;

[0086] The connecting shaft plate 1071 is rotatably mounted on the fixed frame 107, and the connecting shaft plate 1071 is connected to the guide rod 106;

[0087] Handle 108 is located on the outside of the box cover 51.

[0088] In this technical solution, hinges 101 are installed on both ends of the outer side of the processing box 5 and connected to the box cover 51, providing a basic pivot point for the box cover 51, allowing the box cover 51 to open and close around the hinge 101 axis. Operators can easily open and close the box cover 51 by holding the handle 108 on the outer side of the box cover 51. A rotating plate 104 is rotatably mounted on a fixed shaft 103, which is mounted on a bracket 102 located on the left and right sides inside the processing box 5. When the box cover 51 opens or closes, the connecting shaft plate 1071 drives the guide rod 106 to move. The guide rod 106 slides within a fixed cylinder 105, which is mounted on the rotating plate 104. This structural design allows the rotating plate 104 to rotate with the movement of the box cover 51 during opening and closing, providing auxiliary guidance and support, making the opening and closing of the box cover 51 more stable and smooth. With the lid 51 closed, the various components of the movable connecting assembly 10 cooperate to ensure a tight fit between the lid 51 and the processing box 5. The hinge 101 provides a certain degree of fixation, while the interconnections between the rotating plate 104, the fixing cylinder 105, the guide rod 106, and the connecting shaft plate 1071 further enhance the stability of the connection between the lid 51 and the processing box 5, preventing the lid 51 from accidentally opening due to vibration or other reasons during equipment operation, and ensuring the sealing and stability of the powder processing environment inside the processing box 5.

[0089] Workflow: The operator grasps the handle 108 on the outside of the lid 51 and lifts the lid 51 upwards. The lid 51 begins to rotate around the hinge 101 axis. As the lid 51 is lifted, the connecting shaft plates 1071 on the fixing brackets 107 on both sides inside the lid 51 move accordingly. The connecting shaft plates 1071 drive the guide rods 106 connected to them. The guide rods 106 slide upwards within the fixing cylinder 105, thereby pushing the rotating plate 104 to rotate around the fixing shaft 103. During the rotation of the rotating plate 104, the auxiliary lid 51 is smoothly lifted until the lid 51 is fully opened. At this time, the operator can perform relevant operations inside the processing box 5. After closing the cover 51, the operator grasps the handle 108 again and slowly lowers the cover 51. The cover 51 rotates around the hinge 101 axis. As the cover 51 descends, the connecting shaft plate 1071 drives the guide rod 106 to slide downwards within the fixed cylinder 105. The guide rod 106 pushes the rotating plate 104 to rotate in the opposite direction, assisting the cover 51 to fall smoothly. When the cover 51 is fully lowered, it fits tightly against the processing box 5. The components of the movable connecting assembly 10 cooperate with each other to ensure that the cover 51 is firmly fixed, preventing loosening or leakage during equipment operation. This achieves safe, convenient, and stable opening and closing of the cover 51, ensuring that the cover 51 can be tightly closed during the operation of the powder feeder, preventing powder leakage and ensuring a stable working environment inside the processing box 5. On the other hand, when it is necessary to add materials, perform maintenance, or clean the inside of the processing box 5, the operator can easily open the cover 51, and the opening and closing process is smooth. At the same time, the connecting assembly also has a certain structural strength to ensure the long-term reliable operation of the equipment.

[0090] Example 5:

[0091] This embodiment provides a powder feeder for spraying, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0092] like Figure 1 and Figure 4 As shown, in this embodiment, the optimized conveying mechanism 2 includes:

[0093] A vertical housing 21 is disposed on the top of the conveyor column 1, and a storage bin 22 is provided inside the vertical housing 21;

[0094] The rotating rod 23 is rotatably disposed inside the vertical housing 21, and one end extends through the vertical housing 21;

[0095] The first rotating push plate 24 is mounted on the rotating rod 23 and is used to push the powder in the storage bin 22;

[0096] The discharge port 25 is located at the bottom front side of the vertical shell 21 and is connected to the storage bin 22 of the vertical shell 21.

[0097] The connecting shell 26 is located at the bottom of the vertical shell 21 and is connected to the discharge port 25;

[0098] A through groove 27 is provided on the right side of the connecting shell 26, and the through groove 27 is connected to the connecting shell 26;

[0099] The second spiral feed roller 28 is rotatably disposed inside the connecting shell 26 and is used to push the powder from the axial direction of the connecting shell 26.

[0100] A horizontal outer casing 29 is located on the right side of the connecting casing 26, and the horizontal outer casing 29 is connected to the through groove 27 of the connecting casing 26;

[0101] The second rotating push plate 210 is rotatably disposed inside the horizontal housing 29;

[0102] The feeding hopper 211 is located at the bottom of the horizontal outer shell 29 and is connected to the discharge arm 3.

[0103] Power source 212 is used to provide power to drive the rotating rod 23, the second spiral feed roller 28 and the second rotating push plate 210 to rotate.

[0104] In this technical solution, firstly, a vertical housing 21 is connected to the top of the conveying column 1, and a storage bin 22 is opened inside the housing to temporarily store the powder lifted from the conveying column 1. A rotating rod 23 is rotatably mounted inside the vertical housing 21, with one end penetrating through the housing 21. When the rotating rod 23 rotates, the first rotating push plate 24 on the rotating rod 23 can push the powder in the storage bin 22, causing the powder to move towards the downward feed port 25, thus achieving the initial directional conveying of the powder.

[0105] Secondly, the discharge port 25 is located at the bottom front of the vertical outer shell 21 and is connected to the storage bin 22. The powder enters the connecting shell 26 through the discharge port 25. A through groove 27 is opened on the right side of the connecting shell 26. A second spiral feeding roller 28 is rotatably arranged inside the connecting shell 26. When rotating, it can push the powder entering the connecting shell 26 from the discharge port 25 in the axial direction of the connecting shell 26, changing the conveying direction of the powder and preparing it for subsequent entry into the horizontal outer shell 29.

[0106] Finally, the horizontal housing 29 is located on the right side of the connecting housing 26 and communicates with the through groove 27, allowing powder to enter the horizontal housing 29 from the connecting housing 26. Inside the horizontal housing 29, a second rotating pusher 210 is rotatably mounted, further pushing the powder towards the lower hopper 211 during rotation. The lower hopper 211 is located at the bottom of the horizontal housing 29 and communicates with the discharge arm 3, ultimately conveying the powder to the discharge arm 3, thus achieving powder delivery to the spraying equipment. The power source 212 provides power for the rotation of the rotating rod 23, the second spiral feeding roller 28, and the second rotating pusher 210, ensuring that all components can work collaboratively and stably, guaranteeing the continuity and stability of powder delivery.

[0107] Workflow: Powder is lifted to the top by the conveyor column 1 and temporarily stored in the storage bin 22 of the vertical outer shell 21. Power source 212 starts, driving the rotating rod 23 to rotate. The rotating rod 23 drives the first rotating pusher plate 24 to rotate within the storage bin 22, pushing the powder in the storage bin 22 towards the discharge port 25. The powder pushed by the first rotating pusher plate 24 enters the connecting shell 26 through the discharge port 25. At this time, power source 212 drives the second spiral feeding roller 28 to rotate, pushing the powder entering the connecting shell 26 circumferentially, causing it to move towards the through groove 27 on the right side of the connecting shell 26. The powder enters the horizontal outer shell 29 through the through groove 27 of the connecting shell 26. Power source 212 simultaneously drives the second rotating pusher plate 210 to rotate within the horizontal outer shell 29, pushing the powder entering the horizontal outer shell 29 towards the lower hopper 211. The powder, pushed by the second rotating pusher plate 210, enters the discharge arm 3 through the hopper 211. The discharge arm 3 then conveys the powder to the spraying equipment, completing the entire powder conveying process. Throughout the operation, the power source 212 continuously and stably provides power to all rotating components, ensuring efficient and stable powder conveying. This constructs an efficient and orderly powder conveying link, accurately and stably conveying the powder from the conveying column 1 to the discharge arm 3, ultimately supplying powder to the spraying equipment. Through a series of complex and coordinated component operations, the powder maintains good flowability and conveying accuracy during the conveying process, meeting the requirements of different spraying processes for powder conveying volume and speed. Simultaneously, it ensures the reliability of the entire powder feeding process, reduces powder residue and clogging issues, and improves the quality and efficiency of the spraying operation.

[0108] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A powder feeder for spray coating, characterized by The utility model provides a kind of powder processing device, including conveying column (1), conveying mechanism (2) connected to the top of the conveying column (1), material discharging arm (3) extending laterally from the conveying mechanism (2), the conveying column (1) and material discharging arm (3) inside are each equipped with screw conveyor roller (4), and processing box (5) is connected with the bottom of the conveying column (1), and the processing box (5) is the feeding of conveying column (1);The processing box (5) is equipped with box cover (51), and the processing box (5) is equipped with a plurality of arranged processing components inside; The processing component includes at least one group of rotating shaft (52) with blade (53), and the rotating shaft (52) rotates under the drive of power mechanism (6), for stirring and mixing the material in the processing box (5).

2. A powder feeder for spray coating according to claim 1, wherein The power mechanism (6) includes: Synchronous motor (61) is arranged at the bottom of the processing box (5); Synchronous wheel (62) is arranged on the output shaft of the synchronous motor (61) and the rotating shaft (52); Synchronous belt (63) is sleeved between the two synchronous wheels (62); Machine cover (64) is installed outside the processing box (5), and covers the synchronous motor (61), synchronous wheel (62) and synchronous belt (63).

3. A powder feeder for spray coating according to claim 1, wherein The processing box (5) is equipped with transmission shaft (7) inside, the first screw feeding roller (71) is equipped on the transmission shaft (7), the discharge port (72) is equipped on the right side of the bottom of the processing box (5), the discharge port (72) is communicated with conveying column (1), and the first screw feeding roller (71) sends powder from the discharge port (72) into conveying column (1);The rotating shaft (52) and transmission shaft (7) are equipped with pulley (73), and flat belt (74) is sleeved between the two pulleys (73).

4. A powder feeder for spray coating according to claim 1, wherein The processing box (5) is equipped with protective screen (8) inside, for blocking articles or workers from contacting the blade (53) in the processing box (5), preventing articles from falling into the processing box (5), and playing a protective role for workers.

5. A powder feeder for spray coating according to claim 4, wherein The processing box (5) is equipped with support buckle (9) around the inside, the protective screen (8) is placed in the support buckle (9), so that the protective screen (8) is convenient to take and place.

6. A powder feeder for thermal spraying according to claim 1, wherein The box cover (51) is connected with the processing box (5) by movable connection assembly (10), and the movable connection assembly (10) includes: Hinge (101) is arranged at both ends outside the processing box (5), and the two hinges (101) are connected with the box cover (51); Support (102) is arranged on the left and right sides inside the processing box (5); Fixed shaft (103) is arranged on the support (102); Rotating plate (104) is rotatably arranged on the fixed shaft (103); Fixed cylinder (105) is arranged on the rotating plate (104); Guide rod (106) is slidably arranged in the fixed cylinder (105) and penetrates the fixed cylinder (105); Fixed frame (107) is arranged on both sides inside the box cover (51); Connecting shaft plate (1071) is rotatably arranged on the fixed frame (107), and the connecting shaft plate (1071) is connected with the guide rod (106); A handle (108) is arranged outside the box cover (51).

7. A powder feeder for thermal spraying according to claim 1, wherein The conveying mechanism (2) comprises: A vertical shell (21) is arranged at the top of the conveying column (1), and a storage bin (22) is arranged inside the vertical shell (21); A rotating rod (23) is rotatably arranged inside the vertical shell (21) and penetrates the vertical shell (21) at one end; A first rotating push plate (24) is arranged on the rotating rod (23) and used for pushing the powder in the storage bin (22); A discharging port (25) is arranged at the bottom of the front side of the vertical shell (21) and is in communication with the storage bin (22) of the vertical shell (21); A connecting shell (26) is arranged at the bottom of the vertical shell (21) and is in communication with the discharging port (25); A through groove (27) is arranged at the right side of the connecting shell (26) and is in communication with the connecting shell (26); A second spiral feeding roller (28) is rotatably arranged inside the connecting shell (26) and used for pushing the powder from the axial direction of the connecting shell (26); A horizontal shell (29) is arranged at the right side of the connecting shell (26) and is in communication with the through groove (27) of the connecting shell (26); A second rotating push plate (210) is rotatably arranged inside the horizontal shell (29); A discharging hopper (211) is arranged at the bottom of the horizontal shell (29) and is in communication with the discharging arm (3); A power source (212) is used for providing power to drive the rotating rod (23), the second spiral feeding roller (28), and the second rotating push plate (210) to rotate.

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