Electrostatic powder spray powder supply device

Abstract

The utility model relates to electrostatic powder spraying technical field, specifically disclose a kind of electrostatic powder spraying powder supply device, it includes pedestal, the pedestal upper end surface is equipped with storage inner container, the storage inner container outside is nested with the shell of fixed connection of pedestal, the storage inner container inner wall is equipped with turnover structure, the shell inner wall is equipped with power component, the power component is used to provide power for turnover structure, the turnover structure includes rotating rod and filter screen cylinder, the rotating rod penetrates storage inner container upper end surface, the rotating rod is rotatably connected with storage inner container, the filter screen cylinder lower end surface is fixedly connected with storage inner container lower end surface, the rotating rod upper end surface is fixedly connected with worm wheel, the rotating rod lower end surface is fixedly connected with shaftless helical vane, the shaftless helical vane lower end is nested in filter screen cylinder outside;The utility model has the characteristics of preventing powder caking and deposition.

Description

Technical Field

[0001] This utility model belongs to the field of electrostatic powder coating technology, specifically relating to an electrostatic powder coating powder supply device. Background Technology

[0002] An electrostatic powder coating powder supply device is a key piece of equipment used in electrostatic powder coating processes to continuously, uniformly, and quantitatively supply powder coating to the spray gun. Its core function is to fluidize the powder with compressed air, then transport it to the spray gun via high-speed airflow, ultimately achieving uniform powder adsorption on the workpiece surface.

[0003] In electrostatic powder coating, the performance of the powder supply device directly affects the quality and efficiency of the coating. Currently available electrostatic powder coating powder supply devices on the market have many design and functional problems that urgently need to be addressed. Some powder supply devices have inadequate structural designs, lacking effective coordination mechanisms in powder storage, mixing, and conveying, which can easily lead to powder agglomeration and pipe blockage, thus affecting the normal operation of the entire coating system and reducing production efficiency.

[0004] Therefore, an electrostatic powder spraying powder supply device is proposed to solve the problem of powder agglomeration. Utility Model Content

[0005] The purpose of this invention is to address the problems mentioned in the background art by providing an existing electrostatic powder spraying powder supply device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electrostatic powder spraying powder supply device, including a base, a storage liner provided on the upper end face of the base, an outer shell fixedly connected to the base nested on the outer side of the storage liner, a stirring structure provided on the inner wall of the storage liner, and a power component provided on the inner wall of the outer shell, the power component being used to provide power to the stirring structure;

[0007] The stirring structure includes a rotating rod and a filter cylinder. The rotating rod passes through the upper end face of the storage liner and is rotatably engaged with the storage liner. The lower end face of the filter cylinder is fixedly connected to the lower end face of the storage liner. A worm gear is fixedly connected to the upper end face of the rotating rod, and a shaftless spiral blade is fixedly connected to the lower end face of the rotating rod. The lower end of the shaftless spiral blade is nested on the outside of the filter cylinder.

[0008] The lower end face of the inner wall of the storage liner is provided with a discharge port, and a discharge pipe is fixedly connected to the discharge port. The free end of the discharge pipe extends through the outer shell to the outside. A conductive post extends through the outer wall of the discharge pipe, and the top of the conductive post extends into the filter cylinder. A solenoid valve is fixedly connected to the upper end face of the storage liner. An inlet pipe is fixedly connected to the input end of the solenoid valve, and the output end of the solenoid valve extends through the storage liner to the inside.

[0009] This utility model further describes that the power assembly includes a servo motor, the fixed end of which is fixedly connected to the inner wall of the outer casing, and a first transmission gear fixedly connected to the output end of the servo motor. Two first-fixed plates are fixedly connected to the inner wall of the outer casing, and a power rod is provided on the opposite side of the two first-fixed plates. The top end of the power rod passes through the upper fixed plate, and the power rod is rotatably engaged with the upper fixed plate. The lower end of the power rod is rotatably connected to the lower fixed plate. A second transmission gear is fixedly connected to the middle section of the outer wall of the power rod, and a first bevel gear is fixedly connected to the top end of the power rod. Two second-fixed plates are fixedly connected to the top of the inner wall of the outer casing, and a driven rod is provided on the opposite side of the two second-fixed plates. The driven rod near the servo motor passes through the corresponding second-fixed plate, and the driven rod away from the servo motor is rotatably engaged with the corresponding second-fixed plate. A second bevel gear is fixedly connected to the end of the driven rod near the servo motor, and a worm gear is fixedly connected to the middle section of the outer wall of the driven rod.

[0010] This utility model further illustrates that the first bevel gear meshes with the second bevel gear, the worm meshes with the worm wheel, and the first transmission gear meshes with the second transmission gear.

[0011] The present invention further illustrates that a heating coil is fixedly connected to the outer wall of the storage liner, the heating coil is electrically connected to an external power source, and the conductive post is electrically connected to an external grounding wire.

[0012] The present invention further describes that the lower end of the outer wall of the storage liner is funnel-shaped, and a support column is fixedly connected to the lower end of the outer wall of the storage liner. The lower end face of the support column is fixedly connected to the upper end face of the base.

[0013] The present invention further explains that the shape and size of the shaftless spiral blade are adapted to the inner wall of the storage liner, and the shaftless spiral blade rotates in coordination with the inner wall of the storage liner.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] Preventing clumping and deposition, and improving powder supply quality: This electrostatic powder coating powder supply device is ingeniously designed and has multiple significant advantages: Through the stirring structure on the inner wall of the storage tank, the rotating rod drives the shaftless spiral blades adapted to the outer shell to thoroughly and evenly stir the powder, effectively preventing clumping and deposition, and ensuring powder flowability and coating quality; The conductive column design on the outer wall of the discharge pipe conducts static electricity from the filter cylinder to the ground, solving the problem of static electricity accumulation causing adhesion to the tank wall and clumping, avoiding damage and improving coating uniformity; The heating coil on the outer wall of the storage tank can heat the powder as needed, improving flowability and further enhancing coating quality. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0020] In the diagram: 1. Base; 2. Storage liner; 3. Outer shell; 4. Rotating rod; 501. Filter cylinder; 502. Worm gear; 503. Shaftless spiral blade; 6. Support column; 7. Waste solenoid valve; 8. Discharge port; 9. Discharge pipe; 10. Conductive column; 11. Solenoid valve; 12. Feed pipe; 1301. Servo motor; 1302. First transmission gear; 1303. First fixing plate; 1304. Power rod; 1305. Second transmission gear; 1306. First bevel gear; 1307. Second fixing plate; 1308. Driven rod; 1309. Second bevel gear; 1310. Worm gear; 14. Heating coil. Detailed Implementation

[0021] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present 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.

[0022] like Figures 1 to 3 As shown, the electrostatic powder spraying powder supply device of this embodiment includes a base 1, a storage liner 2 is provided on the upper end face of the base 1, a shell 3 fixedly connected to the base 1 is nested on the outside of the storage liner 2, a stirring structure is provided on the inner wall of the storage liner 2, and a power component is provided on the inner wall of the shell 3. The power component is used to provide power to the stirring structure.

[0023] The stirring structure includes a rotating rod 4 and a filter cylinder 501. The rotating rod 4 passes through the upper end face of the storage inner liner 2 and is rotatably engaged with the storage inner liner 2. The lower end face of the filter cylinder 501 is fixedly connected to the lower end face of the storage inner liner 2. A worm gear 502 is fixedly connected to the upper end face of the rotating rod 4, and a shaftless spiral blade 503 is fixedly connected to the lower end face of the rotating rod 4. The lower end of the shaftless spiral blade 503 is nested on the outside of the filter cylinder 501.

[0024] When the rotating rod 4 rotates, the shaftless spiral blades 503 at its lower end also rotate. Because the shaftless spiral blades 503 are uniform in shape and size and conform to the inner wall of the storage liner 2, and rotate in coordination with the inner wall of the storage liner 2, they can comprehensively and evenly agitate the powder within the storage liner 2. This agitation effectively prevents powder from clumping and settling during storage, ensuring good powder flowability and thus improving coating quality. Simultaneously, the presence of the filter cylinder 501 allows for some filtration of the powder, removing any potential impurities and further ensuring powder purity. Furthermore, the shaftless spiral blades 503 are nested on the outside of the filter cylinder 501, preventing powder accumulation and clogging of the filter cylinder 501.

[0025] The storage liner 2 has a discharge port 8 on the lower end face of its inner wall. A discharge pipe 9 is fixedly connected inside the discharge port 8. The free end of the discharge pipe 9 extends through the outer shell 3 to the outside. A conductive post 10 passes through the outer wall of the discharge pipe 9. The top end of the conductive post 10 extends into the filter cylinder 501. A solenoid valve 11 is fixedly connected to the upper end face of the storage liner 2. An inlet pipe 12 is fixedly connected to the input end of the solenoid valve 11. The output end of the solenoid valve 11 extends through the storage liner 2 to the inside.

[0026] During electrostatic powder coating, static electricity easily accumulates in the powder, which can pose a potential hazard to operators and affect the coating effect. This device addresses this issue by using a conductive post 10 penetrating the outer wall of the discharge pipe 9. The top of the conductive post 10 extends into the filter cylinder 501 and is electrically connected to an external grounding wire. During the coating process, the static electricity accumulated in the filter cylinder 501 is conducted to the ground through the conductive post 10, effectively preventing static electricity buildup, ensuring the safety of the coating process and the coating effect, and allowing the powder to adhere more evenly to the surface of the object being coated.

[0027] The power assembly includes a servo motor 1301, whose fixed end is fixedly connected to the inner wall of the housing 3. A first transmission gear 1302 is fixedly connected to the output end of the servo motor 1301. Two first fixing plates 1303 are fixedly connected to the inner wall of the housing 3. A power rod 1304 is provided on the opposite side of the two first fixing plates 1303. The top end of the power rod 1304 passes through the upper fixing plate and is rotatably engaged with the upper fixing plate. The lower end of the power rod 1304 is rotatably connected to the lower fixing plate. A second transmission gear 1305 is fixedly connected to the middle section of the outer wall of the power rod 1304. A first bevel gear 1306 is fixedly connected to the top of the lever 1304. Two second fixing plates 1307 are fixedly connected to the top of the inner wall of the outer casing 3. A driven rod 1308 is provided on the opposite side of the two second fixing plates 1307. The end of the driven rod 1308 near the servo motor 1301 passes through the corresponding second fixing plate 1307. The end of the driven rod 1308 away from the servo motor 1301 is rotatably engaged with the corresponding second fixing plate 1307. A second bevel gear 1309 is fixedly connected to the end of the driven rod 1308 near the servo motor 1301. A worm gear 1310 is fixedly connected to the middle section of the outer wall of the driven rod 1308.

[0028] The first bevel gear 1306 meshes with the second bevel gear 1309, the worm 1310 meshes with the worm wheel 502, and the first transmission gear 1302 meshes with the second transmission gear 1305.

[0029] The core of the power assembly is the servo motor 1301, which starts operating when the device is started. The servo motor 1301 features precise control of speed and direction, enabling stable power output according to actual needs. Its fixed end is fixedly connected to the inner wall of the housing 3 to ensure stability during operation. The output end is fixedly connected to a first transmission gear 1302. When the motor rotates, it drives the first transmission gear 1302 to rotate synchronously, thus transmitting the motor's power. When the first transmission gear 1302 rotates, the second transmission gear 1305, which meshes with it, rotates accordingly, thereby driving the power rod 1304 to rotate, achieving a single-stage power transmission from the servo motor 1301 to the power rod 1304. When the power rod 1304 rotates, its first bevel gear 1306 meshes with the second bevel gear 1309 on the driven rod 1308. Due to the special structure of the bevel gear, the direction of power can be changed, causing the driven rod 1308 to rotate in a direction perpendicular to the power rod 1304, completing the two-stage power transmission from the power rod 1304 to the driven rod 1308. The rotating rod 4 passes through the upper end face of the storage liner 2 and rotates in conjunction with the storage liner 2. The rotation of the worm gear 502 drives the rotating rod 4 to rotate. A shaftless spiral blade 503 is fixedly connected to the lower end face of the rotating rod 4. When the rotating rod 4 rotates, the shaftless spiral blade 503 also rotates, thereby stirring the powder inside the storage liner 2. This three-stage power transmission method, through the combination of different types of gears, achieves the change of power direction and the optimization of transmission efficiency, ensuring that the stirring structure can work stably and effectively.

[0030] A heating coil 14 is fixedly connected to the outer wall of the storage liner 2. The heating coil 14 is electrically connected to an external power source, and the conductive post 10 is electrically connected to an external grounding wire.

[0031] A heating coil 14 is fixedly connected to the outer wall of the storage liner 2, and the heating coil 14 is electrically connected to an external power source. Depending on the actual spraying requirements, the powder inside the storage liner 2 can be heated by controlling the energization of the heating coil 14. Heating improves the flowability of the powder, especially at low ambient temperatures, allowing the powder to flow more smoothly through the discharge port 8 and discharge pipe 9, further improving spraying quality and ensuring the stability and consistency of the spraying effect.

[0032] The lower end of the outer wall of the storage liner 2 is funnel-shaped. A support column 6 is fixedly connected to the lower end of the outer wall of the storage liner 2. The lower end face of the support column 6 is fixedly connected to the upper end face of the base 1. A waste solenoid valve 7 is fixed to the lower end face of the storage liner 2.

[0033] The device has a storage liner 2 on its base 1, with an outer shell 3 fixedly connected to the base 1 nested inside. The storage liner 2 is used to store the powder to be sprayed. The lower end of the outer wall of the storage liner 2 is designed in a funnel shape, which facilitates the concentration of powder towards the discharge port 8 under gravity. The discharge port 8 is located on the lower end face of the inner wall of the storage liner 2, and a discharge pipe 9 is fixedly connected inside. The free end of the discharge pipe 9 extends through the outer shell 3 to the outside, so as to transport the processed powder to the spraying equipment and achieve stable powder output. The waste solenoid valve 7 can discharge the filtered waste from the storage liner 2.

[0034] The shape and size of the shaftless spiral blade 503 are adapted to the inner wall of the storage liner 2, and the shaftless spiral blade 503 rotates in conjunction with the inner wall of the storage liner 2.

[0035] Working principle: Ensure solenoid valve 11 is closed and connect feed pipe 12 to the powder supply source. Open solenoid valve 11 to allow powder to enter the storage tank 2 through feed pipe 12. During the addition process, carefully observe the amount of powder added to avoid over-addition and powder overflow. Once the appropriate amount of powder has been added, close solenoid valve 11.

[0036] Turn on the power to the servo motor 1301 in the power assembly and start the servo motor 1301. After the servo motor 1301 starts running, it transmits power to the worm gear 502 through the sequential transmission of the first transmission gear 1302, the second transmission gear 1305, the first bevel gear 1306, the second bevel gear 1309 and the worm gear 1310, which in turn drives the rotating rod 4 to rotate.

[0037] The shaftless spiral blades 503 at the lower end of the rotating rod 4 rotate accordingly, thoroughly and evenly agitating the powder inside the storage liner 2. During the agitation process, the shaftless spiral blades 503 effectively prevent powder from clumping and settling. At the same time, the filter cylinder 501 filters the powder, removing impurities. Furthermore, the shaftless spiral blades 503 are nested on the outside of the filter cylinder 501 to prevent powder from accumulating and clogging the filter cylinder 501.

[0038] Depending on the actual spraying requirements and ambient temperature, determine whether heating of the powder inside the storage liner 2 is necessary. If heating is required, connect the power supply to the heating coil 14. By controlling the heating time and power, improve the powder's flowability, allowing it to pass more smoothly through the discharge port 8 and discharge pipe 9. During the heating process, carefully observe temperature changes to avoid excessively high temperatures that could cause powder deterioration.

[0039] During the spraying process, static electricity may accumulate in the powder due to friction. Since the top of the conductive post 10 extends into the filter cylinder 501 and is electrically connected to the external grounding wire, the static electricity accumulated in the filter cylinder 501 will be conducted to the ground through the conductive post 10, thereby effectively avoiding static electricity accumulation, ensuring the safety of the spraying process and the spraying effect of the powder, and enabling the powder to adhere more evenly to the surface of the object being sprayed.

[0040] After being stirred and processed, the powder is drawn towards the discharge port 8 at the lower end of the storage liner 2 under the influence of gravity. The powder enters the discharge pipe 9 through the discharge port 8 and is then transported to the spraying equipment for electrostatic powder coating.

[0041] During the operation of the device, powder that cannot pass through the filter cartridge will remain in the storage liner 2. After the feeding is completed, the waste solenoid valve 7 can be opened to discharge the waste.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrostatic powder coating powder supply device, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a storage liner (2), and the outer side of the storage liner (2) is nested with a shell (3) that is fixedly connected to the base (1). The inner wall of the storage liner (2) is provided with a stirring structure, and the inner wall of the shell (3) is provided with a power component, which is used to provide power to the stirring structure. The stirring structure includes a rotating rod (4) and a filter cylinder (501). The rotating rod (4) passes through the upper end face of the storage liner (2) and is rotatably engaged with the storage liner (2). The lower end face of the filter cylinder (501) is fixedly connected to the lower end face of the storage liner (2). A worm gear (502) is fixedly connected to the upper end face of the rotating rod (4), and a shaftless spiral blade (503) is fixedly connected to the lower end face of the rotating rod (4). The lower end of the shaftless spiral blade (503) is nested outside the filter cylinder (501). The storage liner (2) has a discharge port (8) on the lower end of its inner wall. A discharge pipe (9) is fixedly connected inside the discharge port (8). The free end of the discharge pipe (9) extends through the outer shell (3) to the outside. A conductive post (10) extends through the outer wall of the discharge pipe (9). The top end of the conductive post (10) extends into the filter cylinder (501). A solenoid valve (11) is fixedly connected to the upper end of the storage liner (2). An inlet pipe (12) is fixedly connected to the input end of the solenoid valve (11). The output end of the solenoid valve (11) extends through the storage liner (2) to the inside.

2. The electrostatic powder spraying powder supply device according to claim 1, characterized in that: The power assembly includes a servo motor (1301), the fixed end of which is fixedly connected to the inner wall of the outer casing (3), and the output end of which is fixedly connected to a first transmission gear (1302). Two first fixing plates (1303) are fixedly connected to the inner wall of the outer casing (3). A power rod (1304) is provided on the opposite side of the two first fixing plates (1303). The top of the power rod (1304) passes through the upper fixing plate, and the power rod (1304) is rotatably engaged with the upper fixing plate. The lower end of the power rod (1304) is rotatably connected to the lower fixing plate. A second transmission gear (1305) is fixedly connected to the middle section of the outer wall of the power rod (1304). A first bevel gear (1306) is fixedly connected to the top of the power rod (1304). Two second fixing plates (1307) are fixedly connected to the top of the inner wall of the outer shell (3). A driven rod (1308) is provided on the opposite side of the two second fixing plates (1307). The driven rod (1308) near the servo motor (1301) passes through the corresponding second fixing plate (1307). The driven rod (1308) away from the servo motor (1301) rotates with the corresponding second fixing plate (1307). A second bevel gear (1309) is fixedly connected to the end of the driven rod (1308) near the servo motor (1301). A worm gear (1310) is fixedly connected to the middle section of the outer wall of the driven rod (1308).

3. The electrostatic powder spraying powder supply device according to claim 2, characterized in that: The first bevel gear (1306) meshes with the second bevel gear (1309), the worm (1310) meshes with the worm wheel (502), and the first transmission gear (1302) meshes with the second transmission gear (1305).

4. The electrostatic powder spraying powder supply device according to claim 1, characterized in that: A heating coil (14) is fixedly connected to the outer wall of the storage liner (2). The heating coil (14) is electrically connected to an external power source, and the conductive post (10) is electrically connected to an external grounding wire.

5. The electrostatic powder spraying powder supply device according to claim 1, characterized in that: The lower end of the outer wall of the storage liner (2) is funnel-shaped. A support column (6) is fixedly connected to the lower end of the outer wall of the storage liner (2). The lower end face of the support column (6) is fixedly connected to the upper end face of the base (1). A waste solenoid valve (7) is fixed to the lower end face of the storage liner (2).

6. The electrostatic powder spraying powder supply device according to claim 1, characterized in that: The shape and size of the shaftless spiral blade (503) are adapted to the inner wall of the storage liner (2), and the shaftless spiral blade (503) rotates in conjunction with the inner wall of the storage liner (2).

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