Gravity powder feeder

Abstract

The utility model provides a gravity powder feeder which comprises a base body, a powder cylinder, a driving motor and a rotating wheel assembly, a sealed powder cavity is formed in the base body, the rotating wheel assembly is installed in the powder cavity, a plurality of powder containing grooves which are evenly distributed in the circumferential direction are formed in the rotating wheel assembly, a plurality of groups of powder containing grooves are formed in the axial direction, and the rotating wheel assembly is installed in the powder cavity. The powder containing grooves in the adjacent groups are arranged in a staggered mode, the powder cylinder is connected with the base body, the base body is provided with a powder outlet hole and a powder inlet hole, and the driving motor drives the rotating wheel assembly to rotate in the powder cavity. The powder containing groove formed in the rotating wheel assembly is suitable for bringing the powder in the powder cavity to the powder outlet to flow out. Compared with the prior art, powder is brought to the powder outlet through the rotating wheel assembly and the powder containing grooves formed in the rotating wheel assembly in a staggered mode, and powder feeding continuity and powder feeding amount stability are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, and more specifically, to a gravity powder feeder. Background Technology

[0002] In existing technologies, powder feeders are commonly used for laser cladding. Current gravity powder feeders rely on gravity to drop powder into a feeding tray, from which a turntable delivers the powder to the outlet, or a screw-driven mechanism pushes the powder out. Both of these methods cannot guarantee the amount of powder dispensed each time; the amount can vary. Therefore, intermittent or inconsistent powder dispensing often occurs at the outlet, failing to ensure consistent powder delivery and stable powder quantity, severely impacting the quality of laser cladding. Utility Model Content

[0003] The problem this invention solves is how to ensure the continuity of powder delivery and the stability of the powder delivery amount.

[0004] To address the aforementioned problems, this utility model provides a gravity powder feeder, characterized in that it comprises a base, a powder cylinder, a drive motor, and a rotating wheel assembly. The base contains a sealed powder cavity, and the rotating wheel assembly is installed within the powder cavity. The rotating wheel assembly has several powder-containing grooves evenly distributed circumferentially, and several groups of these grooves are arranged axially, with adjacent groups of grooves staggered. The powder cylinder is connected to the base, and the base has a powder outlet and a powder inlet. The powder material in the powder cylinder enters the powder cavity through the powder inlet. The drive motor drives the rotating wheel assembly to rotate within the powder cavity, and the powder-containing grooves on the rotating wheel assembly are adapted to carry the powder material from the powder cavity to the powder outlet for discharge.

[0005] Optionally, the rotary wheel assembly includes a plurality of stacked rotary plates, and the powder-containing groove is disposed on the rotary plates, with the powder-containing grooves on two adjacent rotary plates being staggered.

[0006] Optionally, the wheel assembly further includes a cover plate adapted to clamp the stacked wheel plates.

[0007] Optionally, it also includes a sealing cover plate connected to the substrate, the sealing cover plate being adapted to seal the powder cavity.

[0008] Optionally, the powder cavity is further provided with a powder discharge hole, which is adapted to discharge the powder material in the powder cavity.

[0009] Optionally, the base is provided with support feet at its bottom.

[0010] This utility model has the following beneficial effects:

[0011] As the rotary wheel assembly rotates, the staggered powder-holding grooves on the rotary wheel assembly carry the powder material in the powder chamber to the powder outlet. Because the powder-holding grooves are staggered, the continuity of the powder material falling into the powder outlet is improved, thereby ensuring the continuity of powder feeding and the stability of the powder feeding amount. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the gravity powder feeder in this embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure after the sealing cover is opened in an embodiment of this utility model;

[0014] Figure 3 This is a cross-sectional view of the overall structure of the gravity powder feeder in this embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the rotating plate and the cover plate in the embodiments of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the rotating plate in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1-Base, 11-Powder cavity, 12-Powder outlet, 13-Powder inlet, 14-Powder discharge, 15-Air inlet, 2-Powder cylinder, 21-Balancing air hole, 3-Drive motor, 4-Rotator assembly, 41-Rotator blade, 42-Cover plate, 43-Powder container, 5-Sealing cover plate, 6-Support foot. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Combination Figures 1 to 3 As shown, an embodiment of this utility model provides a gravity powder feeder, including a base 1, a powder cylinder 2, a drive motor 3, and a rotary wheel assembly 4. The base 1 has a sealed powder cavity 11, and the rotary wheel assembly 4 is installed in the powder cavity 11. The rotary wheel assembly 4 is provided with a plurality of powder-containing grooves 43 evenly distributed circumferentially. The powder-containing grooves 43 are arranged in a plurality of groups along the axial direction, and the powder-containing grooves 43 in adjacent groups are staggered. The powder cylinder 2 is connected to the base 1, and the base 1 is provided with a powder outlet 12 and a powder inlet 13. The powder material in the powder cylinder 2 enters the powder cavity 11 through the powder inlet 13. The drive motor 3 drives the rotary wheel assembly 4 to rotate in the powder cavity 11. The powder-containing grooves 43 provided on the rotary wheel assembly 4 are adapted to carry the powder material in the powder cavity 11 to the powder outlet 12 for outflow.

[0024] Specifically, in this embodiment, a powder cavity 11 is provided inside the substrate 1, and a powder inlet hole 13 penetrating the powder cavity 11 is also provided above the substrate 1. The powder cylinder 2 is installed on the top of the substrate 1, and the bottom of the powder cylinder 2 is connected to the powder inlet hole 13. Therefore, the powder material in the powder cylinder 2 can enter the powder cavity 11 through the powder inlet hole 13. A rotating wheel assembly 4 is installed inside the powder cavity 11. A powder receiving groove 43 is provided on the rotating wheel assembly 4. Multiple powder receiving grooves 43 are provided along the circumferential direction of the rotating wheel assembly 4, forming a group of powder receiving grooves 43 along the circumferential direction. The rotary wheel assembly 4 has multiple sets of powder-containing troughs 43 arranged axially, with adjacent sets staggered. The rotary wheel assembly 4 is driven to rotate by the drive motor 3. The bottom of the powder chamber 11 has a powder outlet 12 and a powder discharge hole 14 on the left and right sides, respectively. The powder in the powder cylinder 2 enters the powder chamber 11 through the powder inlet 13 and accumulates on the right side of the powder chamber 11. At this time, the rotary wheel assembly 4 rotates counterclockwise, and the powder on the right side is carried to the left side through the powder-containing troughs 43 and falls into the powder outlet 12 on the left side, from which the powder is discharged. Therefore, because the powder-containing troughs 43 of adjacent sets are staggered, the continuous falling of the powder to the outlet is ensured, thus guaranteeing the continuity and uniformity of powder discharge. It should be noted that there is no specific limitation on the number of powder-containing troughs 43 along the circumference of the rotary wheel assembly 4 or the number of sets along the axial direction; adjustments can be made according to actual needs. The more powder-containing grooves 43 are opened along the circumference of the rotary assembly and the more groups are opened along the axial direction, the smaller the interval between adjacent groups of powder-containing grooves 43 will be. Furthermore, there are no specific restrictions on the shape of the powder-containing grooves 43. They can be opened into different shapes according to actual needs, thereby improving the continuity and uniformity of powder feeding.

[0025] Combination Figure 4 and Figure 5 As shown, the rotary wheel assembly 4 includes several stacked rotating blades 41. Several powder-containing troughs 43 are evenly distributed along the circumference of the rotating blades 41, and the powder-containing troughs 43 on each adjacent rotating blade 41 are staggered. Thus, when the rotary wheel assembly 4 rotates, the powder-containing troughs 43 carry the powder in the powder cavity 11 to the powder outlet 12, and the powder in the powder-containing troughs 43 continuously falls into the powder outlet 12. Because the powder-containing troughs 43 are staggered, the continuity of the powder falling into the powder outlet 12 is improved.

[0026] It should be noted that in this embodiment, the rotary wheel assembly 4 is composed of four stacked rotary blades 41, and the powder-containing groove 43 is toothed. In other embodiments, the rotary wheel assembly 4 may be composed of one or more stacked rotary blades 41, or it may be a cylinder with multiple sets of staggered powder-containing grooves 43 formed on its circumferential surface. The shape of the powder-containing groove 43 is not specifically limited and can be adopted according to actual usage requirements.

[0027] Combination Figure 4and Figure 5 As shown, preferably, the rotary wheel assembly 4 also includes a cover plate 42, with one cover plate 42 on each side of the rotary plate 41, for pressing the stacked rotary plates 41 together to prevent powder from falling between the rotary plates 41, thereby affecting the continuity of powder feeding and the stability of powder feeding amount.

[0028] Combination Figure 1 and Figure 2 As shown, preferably, the gravity powder feeder also includes a sealing cover plate 5, which is connected to the base 1 and is used to seal the powder cavity 11 opened on the base 1.

[0029] Combination Figure 2 and Figure 3 As shown, preferably, a powder discharge hole 14 is provided at the bottom right side of the powder chamber 11. During use, the powder discharge hole 14 is blocked, and powder falls from the powder cylinder 2 into the right side of the powder chamber 11 and accumulates. The powder in the powder chamber 11 can only be fed from the right side of the powder chamber 11 to the powder outlet hole 12 on the left side of the powder chamber 11 via the rotating wheel assembly 4. When there is a large amount of powder in the powder cylinder 2 and powder needs to be replaced, the method of feeding the powder through the rotating wheel assembly 4 requires a long wait. Therefore, to improve the powder discharge efficiency, simply opening the originally blocked powder discharge hole 14 allows the powder to fall directly from the powder cylinder 2 into the right side of the powder chamber 11 and be discharged directly through the powder discharge hole 14, without needing to use the rotating wheel assembly 4 to feed the powder to the powder outlet hole 12, thus improving ease of use.

[0030] Combination Figures 1 to 3 As shown, the bottom of the base 1 is provided with a support foot 6, which can avoid affecting the insertion of the tube in the powder outlet 12 and the powder discharge hole 14. At the same time, the gravity powder feeder can be fixed in the required position by the support foot 6.

[0031] Combination Figure 2 and Figure 3 As shown, preferably, the top of the substrate 1 has an air inlet 15 extending into the powder cavity 11. The air inlet 15 is coaxially arranged with the powder outlet 12. An external air source supplies air into the powder cavity 11 through the air inlet 15. Thus, the powder that falls from the rotary wheel assembly 4 to the powder outlet 12 is blown out by the air. Since the air inlet 15 and the powder outlet 12 are coaxially arranged and the air inlet 15 is located above the powder outlet 12, the falling powder can be directly blown into the powder outlet 12, improving the stability of powder feeding.

[0032] Preferably, to improve the reliability of powder feeding in the powder cylinder 2, a balancing vent 21 is provided at the top of the powder cylinder 2, through which an external air source supplies gas to the top of the powder cylinder 2. Thus, under the action of gas pressure, the powder inside the powder cylinder 2 can be pressed downwards.

[0033] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A gravity powder feeder, characterized in that... The system includes a base (1), a powder cylinder (2), a drive motor (3), and a rotary wheel assembly (4). The base (1) has a sealed powder cavity (11). The rotary wheel assembly (4) is installed in the powder cavity (11). The rotary wheel assembly (4) has several powder-containing grooves (43) evenly distributed circumferentially on it. Several groups of powder-containing grooves (43) are arranged axially. The powder-containing grooves (43) in adjacent groups are staggered. The powder cylinder (2) and the powder cylinder (3) are connected in a series of components. The base (1) is connected to the powder cylinder (2), which is provided with a powder outlet (12) and a powder inlet (13). The powder material in the powder cylinder (2) enters the powder cavity (11) through the powder inlet (13). The drive motor (3) drives the rotating wheel assembly (4) to rotate in the powder cavity (11). The powder receiving groove (43) provided on the rotating wheel assembly (4) is adapted to carry the powder material in the powder cavity (11) to the powder outlet (12) for outflow.

2. The gravity powder feeder according to claim 1, characterized in that, The rotary wheel assembly (4) includes a plurality of stacked rotary plates (41), and the powder-containing groove (43) is disposed on the rotary plate (41), with the powder-containing groove (43) on two adjacent rotary plates (41) being staggered.

3. The gravity powder feeder according to claim 2, characterized in that, The wheel assembly (4) also includes a cover plate (42) adapted to clamp the stacked wheel plates (41).

4. The gravity powder feeder according to claim 1, characterized in that, It also includes a sealing cover plate (5), which is connected to the substrate (1) and is adapted to seal the powder cavity (11).

5. The gravity powder feeder according to claim 1, characterized in that, The powder cavity (11) is also provided with a powder discharge hole (14), which is adapted to discharge the powder material in the powder cavity (11).

6. The gravity powder feeder according to claim 1, characterized in that, The base (1) is provided with a support foot (6) at its bottom.

Images