Powder feeding device for spraying mixed material coating

Abstract

The utility model relates to the technical field of powder feeding of spraying raw materials, and discloses a powder feeding device for spraying a mixed material coating. According to the scheme, the powder feeding device comprises a mixing barrel, a sealing cover is installed on the top side of the mixing barrel in a matched mode, and a powder feeding opening fixedly communicates with the center of the top side of the sealing cover. During powder feeding operation, powder is directly added into the powder feeding opening, the motor generates driving force to drive the quantitative roller to rotate, when the quantitative roller rotates, the same amount of powder firstly slides into the quantitative groove, and after the quantitative groove drives the full powder to turn downwards, the powder in the quantitative groove slides into the mixing barrel under the influence of gravity. The volume of the two quantitative grooves is the same, so that the weight of the powder added every time is the same, the powder feeding operation can be completed only by controlling the adding frequency, and compared with a manual weighing and proportioning mode, time can be effectively saved, the working efficiency can be effectively improved, and limitation can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of powder feeding for spraying raw materials, and particularly to a powder feeding device for spraying a mixed material coating. Background Art

[0002] Spraying is a coating method that disperses into uniform and fine droplets through a spray gun or a disc atomizer, with the aid of pressure or centrifugal force, and is applied to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivative methods of the above basic spraying forms, such as large flow low pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc.

[0003] However, in practical applications, most existing coatings are made by mixing multiple powder materials in a certain proportion. Currently, when performing powder feeding operations on powder materials, workers need to weigh and proportion multiple powder materials in advance. However, the method of manual weighing and proportioning wastes a lot of time, resulting in relatively low work efficiency. At the same time, the overall operation has great limitations and is not conducive to popularization and use.

[0004] Therefore, the technical personnel in this field have provided a powder feeding device for spraying a mixed material coating to solve the problems raised in the above background art. Summary of the Utility Model

[0005] In order to solve the problem raised in the above background art that when performing powder feeding operations on powder materials, workers need to weigh and proportion multiple powder materials in advance. However, the method of manual weighing and proportioning wastes a lot of time, resulting in relatively low work efficiency. At the same time, the overall operation has great limitations and is not conducive to popularization and use, this application provides a powder feeding device for spraying a mixed material coating.

[0006] A powder feeding device for spraying a mixed material coating provided by this application adopts the following technical solution: It includes a mixing barrel, a sealing cover is adaptively installed on the top side of the mixing barrel, a powder feeding port is fixedly communicated with the center of the top side of the sealing cover, the left and right inner walls of the powder feeding port are rotatably connected to the same metering roller, two metering grooves are symmetrically opened on the outer side of the metering roller, a motor is fixedly connected to the left side of the powder feeding port, and the output shaft of the motor is fixedly connected to the left side of the metering roller.

[0007] Preferably, a cross-shaped connecting frame is fixedly connected to the top side of the powder feeding port, a motor is fixedly connected to the top side of the cross-shaped connecting frame, a rotating rod is fixedly connected to the output shaft of the motor, and spiral pushing blades are arranged on the outer side of the rotating rod.

[0008] Preferably, a sieve plate is fixedly connected to the inner wall of the powder feeding port, and the center of the sieve plate is rotatably connected to the rotating rod.

[0009] Preferably, a plurality of pressing sheets are fixedly connected to the outer side of the rotating rod, and the plurality of pressing sheets are all in contact with the top side of the sieve plate.

[0010] Preferably, limiting baffles are fixedly connected to the inner walls on the front and rear sides of the powder feeding port, and the two limiting baffles are both in contact with the surface of the metering roller.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] 1. By providing the metering roller and the metering groove, during the powder feeding operation, the powder is directly added into the powder feeding port, and the motor generates a driving force to drive the metering roller to rotate. When the metering roller rotates, an equal amount of powder will first slide into the metering groove. When the metering groove drives the filled powder to turn downward, the powder in the metering groove will slide into the mixing barrel under the influence of gravity, thus completing the powder feeding operation. The volumes of the two metering grooves are the same, so the weight of the powder added each time is also the same. Therefore, only by controlling the number of additions can the powder feeding operation be completed. Compared with the method of manual weighing and proportioning, it can effectively save time, improve work efficiency, and reduce limitations.

[0013] 2. By providing the spiral pushing blade, since the powder particles are relatively fine, they may cause blockage when accumulating inside the powder feeding port. At this time, the output shaft of the motor drives the rotating rod to rotate, and the rotating rod drives the spiral pushing blade to rotate, so as to push the accumulated powder and avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the external structure of a powder feeding device for spraying a mixed material coating in an embodiment of the present application;

[0015] Figure 2 is a schematic diagram of the left cross-sectional structure of a powder feeding device for spraying a mixed material coating in an embodiment of the present application;

[0016] Figure 3 is a schematic diagram of the right cross-sectional structure of a powder feeding device for spraying a mixed material coating in an embodiment of the present application.

[0017] Description of the reference numerals: 1, mixing barrel; 2, sealing cover; 3, powder feeding port; 4, metering roller; 5, motor; 6, cross connecting frame; 7, motor; 8, rotating rod; 9, spiral pushing blade; 10, sieve plate; 11, pressing sheet; 12, limiting baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will be combined with the attached Figures 1-3The technical solution of the present utility model is clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts belong to the scope protected by the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] The embodiment of the present application discloses a powder feeding device for spraying a mixed material coating. Refer to Figures 1-3 , which includes a mixing barrel 1. A sealing cover 2 is adaptively installed on the top side of the mixing barrel 1. A powder feeding port 3 is fixedly communicated with the center of the top side of the sealing cover 2. The left and right inner walls of the powder feeding port 3 are rotatably connected to the same metering roller 4. Two metering grooves are symmetrically arranged on the outer side of the metering roller 4. A motor 5 is fixedly connected to the left side of the powder feeding port 3. The output shaft of the motor 5 is fixedly connected to the left side of the metering roller 4. By setting the metering roller 4 and the metering grooves, during the powder feeding operation, the powder is directly added into the powder feeding port 3. The motor 5 generates driving force to drive the metering roller 4 to rotate. When the metering roller 4 rotates, an equal amount of powder will first slide into the metering grooves. When the metering grooves drive the filled powder to turn downward, the powder in the metering grooves will slide into the mixing barrel 1 under the influence of gravity, thus completing the powder feeding operation. The volumes of the two metering grooves are the same, so the weight of the powder added each time is also the same. Therefore, only by controlling the number of additions can the powder feeding operation be completed. Compared with the method of manual weighing and proportioning, it can effectively save time, improve work efficiency, and reduce limitations.

[0021] In this application, a cross-shaped connecting frame 6 is fixedly connected to the top side of the powder feeding port 3. A motor 7 is fixedly connected to the top side of the cross-shaped connecting frame 6. The output shaft of the motor 7 is fixedly connected to a rotating rod 8. A spiral pushing blade 9 is arranged on the outer side of the rotating rod 8. By arranging the spiral pushing blade 9, since the powder particles are relatively delicate, they may be blocked when piling up inside the powder feeding port 3. At this time, the output shaft of the motor 7 drives the rotating rod 8 to rotate, and the rotating rod 8 drives the spiral pushing blade 9 to rotate, so as to push the piled-up powder and avoid blockage.

[0022] In this application, a sieve plate 10 is fixedly connected to the inner wall of the powder feeding port 3. The center of the sieve plate 10 is rotatably connected to the rotating rod 8. By arranging the sieve plate 10, when the powder is fed into the inside of the powder feeding port 3, there will inevitably be a small part of powder agglomerates formed by agglomeration in the powder. At this time, the sieve plate 10 can screen the powder agglomerates in the powder, so as to ensure the fineness of the fed powder and avoid affecting the subsequent mixing operation.

[0023] In this application, a plurality of pressing plates 11 are fixedly connected to the outer side of the rotating rod 8. The plurality of pressing plates 11 are all in contact with the top side of the sieve plate 10. By arranging the pressing plates 11, when the pressing plates 11 rotate, they can roll the powder agglomerates screened out on the sieve plate 10, so as to crush the powder agglomerates for utilization, thereby improving the utilization rate of the powder and avoiding waste.

[0024] In this application, limiting baffles 12 are fixedly connected to the inner walls of the front and rear sides of the powder feeding port 3. The two limiting baffles 12 are both in contact with the surface of the metering roller 4. By arranging the limiting baffles 12, when the powder slides into the metering groove, the limiting baffles 12 can prevent the powder from falling into the gap between the metering roller 4 and the powder feeding port 3, so as to ensure the smoothness when the metering roller 4 rotates.

[0025] The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0026] The implementation principle of a powder feeding device for spraying a mixed material coating in an embodiment of the present application is as follows: During use, when performing powder feeding operations, the powder is directly added into the interior of the powder feeding port 3. The output shaft of the motor 5 drives the metering roller 4 to rotate. When the metering roller 4 rotates, an equal amount of powder first slides into the metering groove. When the metering groove drives the filled powder to turn downward, the powder in the metering groove will slide into the mixing barrel 1 under the influence of gravity, thus completing the powder feeding operation. The volumes of the two metering grooves are the same, so the weight of the powder added each time is also the same. Therefore, only by controlling the number of additions can the powder feeding operation be completed. Compared with the method of manual weighing and proportioning, it can effectively save time, improve work efficiency, and reduce limitations. Since the powder particles are relatively delicate, blockage may occur when they accumulate inside the powder feeding port 3. At this time, the output shaft of the motor 7 drives the rotating rod 8 to rotate, and the rotating rod 8 drives the spiral pushing blade 9 to rotate, thereby pushing the accumulated powder to avoid blockage. When the powder is fed into the interior of the powder feeding port 3, there will inevitably be a small number of powder clusters formed by agglomeration in the powder. At this time, the sieve plate 10 can screen the powder clusters in the powder, thereby ensuring the fineness of the powder after feeding and avoiding affecting the subsequent mixing operation. When the rotating rod 8 drives the pressing plate 11 to rotate, it can crush the powder clusters screened out on the sieve plate 10, so that the powder clusters can be crushed and utilized, thereby improving the utilization rate of the powder and avoiding waste. When the powder slides into the metering groove, the limiting baffle 12 can prevent the powder from falling into the gap between the metering roller 4 and the powder feeding port 3, thereby ensuring the smoothness of the rotation of the metering roller 4.

[0027] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0028] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A powder feeding device for spraying a mixed material coating, comprising a mixing barrel (1), characterized in that, A sealing cover (2) is adaptively installed on the top side of the mixing barrel (1). A powder feeding port (3) is fixedly communicated with the center of the top side of the sealing cover (2). The left and right inner walls of the powder feeding port (3) are rotatably connected to the same metering roller (4). Two metering grooves are symmetrically formed on the outer side of the metering roller (4). A motor (5) is fixedly connected to the left side of the powder feeding port (3). The output shaft of the motor (5) is fixedly connected to the left side of the metering roller (4).

2. The powder feeding device for spraying a mixed material coating according to claim 1, wherein: A cross connecting frame (6) is fixedly connected to the top side of the powder feeding port (3). A motor (7) is fixedly connected to the top side of the cross connecting frame (6). A rotating rod (8) is fixedly connected to the output shaft of the motor (7). A spiral pushing blade (9) is formed on the outer side of the rotating rod (8).

3. The powder feeding device for spraying a mixed material coating according to claim 1, wherein: A sieve plate (10) is fixedly connected to the inner wall of the powder feeding port (3). The center of the sieve plate (10) is rotatably connected to the rotating rod (8).

4. The powder feeding device for spraying a mixed material coating according to claim 3, wherein: A plurality of pressing plates (11) are fixedly connected to the outer side of the rotating rod (8). All the plurality of pressing plates (11) are in contact with the top side of the sieve plate (10).

5. The powder feeding device for spraying a mixed material coating according to claim 1, characterized in that: Limiting baffles (12) are fixedly connected to the front and rear inner walls of the powder feeding port (3). Both of the two limiting baffles (12) are in contact with the surface of the metering roller (4).

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