A powder supply center

Abstract

The utility model discloses a powder supply center, including installation frame, it is used for the support and fixed work of whole powder supply center, the middle installation of installation frame has the powder storage box, is provided with the shielding assembly and is shielded sealed work at the top of powder storage box, the suction assembly is symmetrically arranged on the both sides top of powder storage box for the suction work of powder material. The powder supply center, through the setting of butterfly valve, can quickly discharge the old powder in the powder storage box, cooperate the water source in and out work of external pipe, can quickly remove the residual powder in the water storage tank, then cooperate the quick drying work of drying assembly, prepare for the new powder, in the whole process, old powder and new powder do not mix, avoid cross infection, at the same time, the water washing cleaning can remove the caked or hardened powder, reduce the internal fouling of equipment, thereby prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of powder supply centers, specifically to a powder supply center. Background Technology

[0002] In order to ensure continuous powder supply and rapid color change when the powder booth is used for workpiece spraying, the powder coating is usually placed inside the powder supply center for continuous powder supply. The powder supply center can stably deliver powder to the spray gun, so that the coating is evenly covered on the surface of the part. Therefore, the powder supply center is one of the essential pieces of equipment when the powder booth is used for powder spraying. The specific principle is as follows: after the powder is extracted from the inside of the powder storage box, it is transported to the spray gun through the conveying pipe. The spray gun sprays the powder onto the surface of the workpiece to complete the powder spraying work. During the spraying process, the powder that is not adsorbed on the workpiece is recovered by the recycling device inside the powder chamber. Then, it returns to the inside of the powder storage box for recycling to complete the powder recycling work. It also has a color-changing function. When it is necessary to change the powder color, the pneumatic cleaning component is activated. By inserting the head of the powder suction pipe into the back-blowing hole seat, the powder in the original powder supply system is cleaned by back-blowing compressed air. After cleaning, the new powder enters the powder supply tank through the adding device to start a new spraying operation. The specific principle is as disclosed in the application number 201210515057.6 No-exhaust bottom open closed powder supply center. However, the powder supply center mentioned above cannot clean the inside of the powder storage box when changing colors. As a result, powder residue remains inside, and the old color powder mixes with the new color powder, causing cross-contamination. This cross-contamination can cause defects such as color difference, spots, or streaks in the newly sprayed color, seriously affecting the appearance quality of the product. Utility Model Content

[0003] The purpose of this invention is to provide a powder supply center to solve the problem mentioned in the background art that current powder supply centers on the market cannot wash and clean the inside of the powder storage box when changing powder colors.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a powder supply center, including a mounting frame for supporting and fixing the entire powder supply center; a powder storage box is installed in the middle of the mounting frame; a shielding component is provided at the top of the powder storage box for shielding and sealing; suction components are symmetrically arranged on the upper sides of the powder storage box for suction of powder; a pneumatic cleaning component is also provided at the top of the suction component for pneumatic cleaning of the inside of the suction component; a butterfly valve is provided at the bottom of the powder storage box; and a recovery component is provided directly below the powder storage box for recovery of powder.

[0005] Preferably, the suction assembly includes suction units arranged at equal intervals, wherein the suction unit includes a Venturi powder pump and a suction tube, the top end of the Venturi powder pump is connected to the suction tube, and the top end of the suction tube is provided with a through connection port, and the connection port is perpendicular to the suction tube.

[0006] Preferably, the pneumatic cleaning assembly includes an air tank, a connecting pipe, an installation pipe, and an air blowing pipe. The air tank is located at the center of the top of the mounting frame, and its two sides are connected to the installation pipe through the connecting pipe. Air blowing pipes are arranged at equal intervals on the outer side of the installation pipe, and the air blowing pipes are engaged with the connecting ports accordingly.

[0007] Preferably, the powder storage box has a powder storage chamber inside, a powder level sensor at the top, and two sets of external pipes symmetrically arranged on its outer side. The lower external pipe is used for the discharge of cleaning waste liquid, and the upper external pipe is used for the discharge of cleaning liquid. The powder storage box also has a drying component inside, which is located outside the powder storage chamber for the purpose of quickly drying the inside of the powder storage chamber.

[0008] Preferably, the shielding assembly includes an upper cover plate, a fixing pipe, a tap joint, a lower base plate, and nozzles. The upper cover plate and the lower base plate are integrally formed, and the inner side of the upper cover plate is a hollow structure. The top of the upper cover plate is connected to the fixing pipe, and the tap joints are distributed at equal angles on the outside of the fixing pipe. The nozzles are evenly distributed on the bottom of the lower base plate.

[0009] Preferably, the recycling assembly includes a movable plate and a recycling bin, the top of the movable plate engaging with the recycling bin, and a slider on the outer side of the movable plate sliding in a groove inside the mounting frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This powder supply center, through the setting of the butterfly valve, can quickly discharge the old powder inside the powder storage tank. With the operation of the water source in and out of the external pipe, the residual powder inside the water storage tank can be quickly removed. Then, with the rapid drying work of the drying component, it is ready for the new powder. In the whole process, there will be no mixing of old powder and new powder, avoiding cross-contamination. At the same time, water washing can remove clumps or hardened powder, reduce the scale inside the equipment, and thus extend the service life of the equipment. A recycling component is installed at the bottom of the powder storage box, which can quickly recycle the uncoated powder when changing colors, reducing color change time and improving production flexibility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is an enlarged structural schematic diagram of the powder storage box of this utility model. Figure 3 This is a side view enlarged structural schematic diagram of the powder storage box of this utility model; Figure 4 This is a magnified structural diagram of the powder storage box of this utility model, viewed from below. Figure 5 This is a partially enlarged structural diagram of the pneumatic cleaning component of this utility model; Figure 6 This is a schematic diagram of the disassembled structure of the shielding component of this utility model.

[0012] In the diagram: 1. Mounting frame; 2. Pneumatic cleaning assembly; 21. Air tank; 22. Connecting pipe; 23. Mounting pipe; 24. Air blowing pipe; 3. Suction assembly; 31. Venturi powder pump; 32. Suction powder pipe; 321. Connecting port; 4. Powder storage box; 41. Powder storage chamber; 5. Shielding assembly; 51. Top cover plate; 52. Fixing pipe; 53. Tap joint; 54. Bottom plate; 55. Nozzle; 6. Butterfly valve; 7. Recovery assembly; 71. Moving plate; 72. Recovery box; 8. External pipe. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-6 This utility model provides a technical solution: a powder supply center, including a mounting frame 1 for supporting and fixing the entire powder supply center. A powder storage box 4 is installed in the middle of the mounting frame 1. A shielding component 5 is provided at the top of the powder storage box 4 for shielding and sealing. Suction components 3 are symmetrically arranged on the upper sides of the powder storage box 4 for suction of powder. A pneumatic cleaning component 2 is also provided at the top of the suction component 3 for pneumatic cleaning of the inside of the suction component 3. A butterfly valve 6 is provided at the bottom of the powder storage box 4, and a recovery component 7 is provided directly below the powder storage box 4 for recovery of powder.

[0015] This application provides a powder supply center. First, the entire powder supply center is fixed in a suitable position under the action of the mounting frame 1. The power supply of the entire device is turned on, and the powder inside the powder storage box 4 is sucked by the suction component 3 to the position of the external spray gun. The spray gun completes the spraying workpiece. After the spraying is completed, the excess powder that has entered the powder chamber will return to the powder storage box 4 through the external recovery pipe for storage. When a color needs to be changed after the spraying of one color, after the external powder is recovered and the pneumatic cleaning component 2 has cleaned the inside of the suction component 3, the butterfly valve 6 needs to be activated to open the discharge pipe at the bottom of the powder storage box 4, so that the excess powder can reach the inside of the recovery component 7 for recovery. Then, the powder coating of the new color is introduced into the powder storage box 4 again, and the above work is repeated to continue the spraying work.

[0016] When the suction component 3 performs powder suction, according to Figure 2 , Figure 3 and Figure 5 As shown, the suction assembly 3 includes suction units arranged at equal intervals. Each suction unit includes a Venturi powder pump 31 and a suction powder tube 32. The top end of the Venturi powder pump 31 is connected to the suction powder tube 32, and the top end of the suction powder tube 32 is provided with a through connection port 321. The connection port 321 is perpendicular to the suction powder tube 32.

[0017] The pneumatic cleaning assembly 2 includes an air tank 21, a connecting pipe 22, an installation pipe 23, and an air blowing pipe 24. The air tank 21 is located at the center of the top of the mounting frame 1, and its two sides are connected to the installation pipe 23 through the connecting pipe 22. The air blowing pipes 24 are arranged at equal intervals on the outer side of the installation pipe 23, and the air blowing pipes 24 are correspondingly engaged with the connecting port 321.

[0018] Specifically, when performing powder suction, the Venturi powder pump 31 on the corresponding suction unit needs to be started so that it can draw the powder inside the powder storage box 4 into the suction pipe 32. Since the top of the suction pipe 32 is connected to the spray gun, the suction spraying work is completed. Subsequently, when cleaning the powder suction pipe 32 is required, the pressure regulating valve on the air tank 21 needs to be activated to adjust the pressure. Then, the valve of the air tank 21 is opened to allow compressed air to pass through the connecting pipe 22 and the installation pipe 23, and finally blown into the connection port 321 on the outside of the powder suction pipe 32 at the position of the blowing pipe 24. In this way, the residual powder inside the powder suction pipe 32 is cleaned.

[0019] As a further preferred embodiment, according to Figure 3As shown, the powder storage box 4 has a powder storage chamber 41 inside, a powder level sensor at the top, and two sets of external pipes 8 symmetrically arranged on its outer side. The lower external pipe 8 is used for the discharge of cleaning waste liquid, and the upper external pipe 8 is used for the discharge of cleaning liquid. The powder storage box 4 also has a drying component inside, which is located outside the powder storage chamber 41 and is used for the purpose of quickly drying the inside of the powder storage chamber 41.

[0020] Specifically, after the powder in the powder storage chamber 41 inside the powder storage box 4 has completely fallen, in order to prevent the powder in the powder storage chamber 41 from being completely removed, an external pump can introduce cleaning liquid into the powder storage chamber 41 through the external pipe 8 above to clean the stainless steel powder storage chamber 41. After cleaning, the cleaning waste liquid is discharged through the external pipe 8 below. Then, the heating wire inside the drying component is energized to quickly dry the powder storage chamber 41, so that new powder can be introduced.

[0021] Furthermore, when the powder is introduced, according to Figure 6 As shown, the shielding assembly 5 includes an upper cover plate 51, a fixing pipe 52, a tap joint 53, a lower base plate 54, and nozzles 55. The upper cover plate 51 and the lower base plate 54 are integrally formed, and the inner side of the upper cover plate 51 is a hollow structure. The top of the upper cover plate 51 penetrates the fixing pipe 52, and the tap joints 53 are distributed at equal angles on the outside of the fixing pipe 52. The nozzles 55 are evenly distributed on the bottom of the lower base plate 54.

[0022] The fixed pipe 52 has equidistantly distributed taps 53 on the outside, which can be connected to the powder inlet pipe and the external powder return pipe respectively. The external powder inlet pipe can reach the inside of the fixed pipe 52 through the taps 53, and finally spray it out through the evenly distributed nozzles 55, spreading it evenly inside the powder storage chamber 41 to avoid accumulation. The recovered powder can also reach the inside of the fixed pipe 52 through the taps 53, and finally spray it out through the evenly distributed nozzles 55, thus completing the powder storage work.

[0023] In this application, according to Figure 1 As shown, the recycling assembly 7 includes a movable plate 71 and a recycling bin 72. The top of the movable plate 71 is engaged with the recycling bin 72, and a slider is provided on the outer side of the movable plate 71 to slide in a groove inside the mounting frame 1.

[0024] After the butterfly valve 6 is opened, the powder will fall into the inside of the recycling box 72. After recycling is completed, the moving plate 71 can be pulled out from the bottom of the mounting frame 1, and then the recycling box 72 can be disassembled and replaced with a new recycling box 72 for the powder to be recycled again.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A powder supply center, comprising a mounting frame (1) for supporting and fixing the entire powder supply center, characterized in that, A powder storage box (4) is installed in the middle of the mounting frame (1). A shielding component (5) is set at the top of the powder storage box (4) to shield and seal it. Suction components (3) are symmetrically arranged on the upper sides of the powder storage box (4) for suctioning powder. A pneumatic cleaning component (2) is also set at the top of the suction component (3) for pneumatic cleaning of the inside of the suction component (3). A butterfly valve (6) is set at the bottom of the powder storage box (4), and a recovery component (7) is set directly below the powder storage box (4) for recovering powder.

2. The powder supply center according to claim 1, characterized in that: The suction assembly (3) includes suction units arranged at equal intervals, wherein the suction unit includes a Venturi powder pump (31) and a suction tube (32). The top end of the Venturi powder pump (31) is connected to the suction tube (32), and the top end of the suction tube (32) is provided with a through connection port (321), and the connection port (321) is perpendicular to the suction tube (32).

3. A powder supply center according to claim 2, characterized in that: The pneumatic cleaning assembly (2) includes an air bag (21), a connecting pipe (22), an installation pipe (23), and an air blowing pipe (24). The air bag (21) is located at the top center of the mounting frame (1), and its two sides are connected to the installation pipe (23) through the connecting pipe (22). The air blowing pipe (24) is provided at equal intervals on the outer side of the installation pipe (23), and the air blowing pipe (24) is engaged with the connecting port (321).

4. A powder supply center according to claim 1, characterized in that: The powder storage box (4) is provided with a powder storage chamber (41) inside. A powder level sensor is provided at the top of the chamber, and two sets of external tubes (8) are symmetrically arranged on the outside of the chamber. The lower external tube (8) is used for the discharge of cleaning waste liquid, and the upper external tube (8) is used for the discharge of cleaning liquid. The powder storage box (4) is also provided with a drying component, which is located outside the powder storage chamber (41) for the purpose of quickly drying the inside of the powder storage chamber (41).

5. A powder supply center according to claim 1, characterized in that: The shielding assembly (5) includes an upper cover plate (51), a fixing tube (52), a tap (53), a lower base plate (54), and a nozzle (55). The upper cover plate (51) and the lower base plate (54) are integrally formed, and the inner side of the upper cover plate (51) is set as a hollow structure. The top of the upper cover plate (51) is connected to the fixing tube (52), and the taps (53) are distributed at equal angles on the outside of the fixing tube (52). The nozzles (55) are evenly distributed on the bottom of the lower base plate (54).

6. A powder supply center according to claim 1, characterized in that: The recycling assembly (7) includes a movable plate (71) and a recycling bin (72). The top of the movable plate (71) is engaged with the recycling bin (72), and a slider is provided on the outside of the movable plate (71) to slide in a groove inside the mounting frame (1).

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