Powder supply center for self-cleaning of powder pump

Abstract

The utility model discloses a powder supply center for self-cleaning of a powder pump. The powder supply center comprises a mounting box body and a powder box detachably connected in the mounting box body, a sealed powder cleaning cavity is formed in the bottom of the mounting box body, the powder box is arranged on the powder cleaning cavity, a fluidizing plate and an air inlet chamber are detachably connected between the powder cleaning cavity and the powder box, the fluidizing plate is communicated with the powder box, the air inlet chamber is connected with an air pipe, and a plurality of powder cleaning holes are formed in the powder cleaning cavity; a plurality of powder suction pipes corresponding to the powder cleaning holes are connected into the mounting box body through connecting assemblies, the powder suction pipes are connected with powder pumps, and the connecting assemblies are used for driving the powder suction pipes to ascend and descend in the mounting box body. The cleaning process of the powder supply center and the inner cavity of the powder pump is convenient, the powder box and the fluidizing plate can be directly replaced, the time consumed by color changing is saved, meanwhile, powder cleaning is carried out in the closed cleaning cavity, and powder dissipation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of powder spraying device technology, and in particular to a powder supply center for self-cleaning of powder pumps. Background Technology

[0002] In spray booth systems, a powder supply center is typically included to ensure powder supply during powder coating. To facilitate powder transport and dispersion, the powder is usually fluidized, causing it to behave like a fluid under the influence of gas. Inevitably, some powder adheres to the walls of the chambers it flows through. When changing colors, to avoid color mixing, the walls of the chamber, powder pump, and other components need to be cleaned, which is troublesome, time-consuming, and labor-intensive, and often results in powder escaping, affecting the working environment. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a powder supply center for self-cleaning of powder pumps. The cleaning process of the powder pump cavity is convenient, and the powder box and fluidizing plate can be directly replaced, saving the time spent on color change. At the same time, the powder cleaning is carried out in a closed cleaning chamber, which can prevent powder from escaping.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A powder supply center for self-cleaning powder pumps includes a mounting housing and a powder box detachably connected to the mounting housing.

[0006] The bottom of the mounting box is provided with a sealed powder cleaning chamber, the powder box is set on the powder cleaning chamber, and a fluidizing plate and an air inlet chamber are detachably connected between the powder cleaning chamber and the powder box. The fluidizing plate is connected to the powder box, and the air inlet chamber is connected to an air duct. The powder cleaning chamber is provided with multiple powder cleaning holes.

[0007] The mounting box is connected to a plurality of powder suction pipes corresponding one-to-one with the powder cleaning holes via a connecting assembly. The powder suction pipes are connected to a powder pump, and the connecting assembly is used to drive the powder suction pipes to move up and down within the mounting box.

[0008] Furthermore, the connecting assembly includes a mounting bracket, a guide rod, and a driving component. The guide rod is vertically fixed inside the mounting housing. The mounting bracket is slidably connected to the guide rod. The driving component is disposed inside the mounting housing and connected to the mounting bracket.

[0009] The powder suction tube is connected to the mounting bracket.

[0010] Furthermore, the driving component is a pneumatic cylinder or a hydraulic cylinder.

[0011] Furthermore, a base is provided between the powder box and the powder cleaning chamber, and a powder cleaning tube adapted to the powder cleaning hole is provided through the bottom of the base. The inner diameter of the powder cleaning tube is greater than or equal to the outer diameter of the powder suction tube.

[0012] Furthermore, the mounting frame is equipped with a powder detector, which is used to detect the powder level in the powder box.

[0013] Furthermore, the fluidizing plate is connected to the powder box by bolts.

[0014] Furthermore, the driving component is a cylinder, and the piston rod of the driving component is threadedly connected to the mounting bracket.

[0015] Furthermore, a bracket is fixedly installed inside the mounting box, and the driving component is mounted on the bracket.

[0016] The beneficial effects of this utility model are:

[0017] The powder supply center of this utility model makes the cleaning process of the powder pump cavity convenient, and the powder box and fluidizing plate can be directly replaced, saving the time spent on color changing. At the same time, the powder cleaning is carried out in a closed cleaning chamber, which can prevent the powder from escaping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the powder supply center for self-cleaning of the powder pump in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle section;

[0020] Figure 3 for Figure 1 Enlarged view of section B in the middle;

[0021] Figure 4 A side view of the powder supply center used for powder pump self-cleaning;

[0022] In the diagram, 1. Mounting box; 2. Powder box; 3. Powder cleaning chamber; 4. Fluidizing plate; 5. Air inlet chamber; 6. Powder suction pipe; 7. Powder pump; 8. Mounting frame; 9. Guide rod; 10. Drive component; 11. Base; 12. Powder cleaning pipe; 13. Powder detector; 14. Bracket. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See Figures 1-4 This utility model provides a technical solution:

[0025] Example:

[0026] like Figures 1-4 As shown, a powder supply center for self-cleaning of a powder pump includes a mounting housing 1 and a powder box 2 detachably connected to the mounting housing 1.

[0027] The bottom of the mounting box 1 is provided with a sealed powder cleaning chamber 3. The powder box 2 is set on the powder cleaning chamber 3. A base 11 for supporting the powder box 2 is provided between the powder box 2 and the powder cleaning chamber 3. A powder cleaning tube 12 adapted to the powder cleaning hole is provided through the bottom of the base 11. The inner diameter of the powder cleaning tube 12 is greater than or equal to the outer diameter of the powder suction tube 6.

[0028] like Figure 3 As shown, a fluidizing plate 4 and an air inlet chamber 5 are detachably connected between the powder cleaning chamber 3 and the powder box 2. The fluidizing plate 4 is connected to the powder box 2 and is connected to the powder box 2 by bolts. The air inlet chamber 5 is connected to an air duct. The powder cleaning chamber 3 is provided with multiple powder cleaning holes.

[0029] The mounting box 1 is connected to a plurality of powder suction pipes 6 that correspond one-to-one (coaxially and vertically) to the powder cleaning holes. The powder suction pipes 6 are connected to a powder pump 7. The connecting assembly is used to drive the powder suction pipes 6 to move up and down within the mounting box 1.

[0030] like Figure 1 As shown, the connection assembly includes a mounting bracket 8, a guide rod 9, and a driving component 10. The driving component 10 is a cylinder, and the piston rod of the driving component 10 is threadedly connected to the mounting bracket 8. A bracket 14 is fixedly provided inside the mounting box 1, and the driving component 10 is mounted on the bracket 14.

[0031] The guide rod 9 is vertically fixed inside the mounting box 1, the mounting bracket 8 is slidably connected to the guide rod 9, and the driving component 10 is disposed inside the mounting box 1 and connected to the mounting bracket 8;

[0032] The powder suction tube 6 is connected to the mounting bracket 8.

[0033] The mounting frame 8 is equipped with a powder detector 13, which is used to detect the powder level in the powder box 2.

[0034] The powder box 2, fluidizing plate 4, and air inlet chamber 5 are connected as a whole.

[0035] Working principle: During spraying, the drive unit 10 is activated, causing the mounting bracket 8 to descend and extend the powder suction pipe 6 into the powder box 2. Air is introduced through the air inlet pipe, passing through the air inlet chamber 5, the fluidizing plate 4, and the powder box 2, causing the powder in the powder box 2 to fluidize and circulate. The fluidized powder in the powder box 2 enters from the end of the powder suction pipe 6, passes through the inner cavity of the powder suction pipe 6 to the powder pump 7, and is then sprayed out from one end of the powder pump 7. After passing through the air pipe and the spray gun, it finally adheres to the surface of the workpiece.

[0036] The powder detector 13 installed on the mounting frame 8 monitors the powder level in real time, and then transmits and converts the powder level signal into a control signal to control the extension and retraction of the piston rod of the cylinder, thereby driving the mounting frame 8 to rise and fall to ensure that the end of the powder suction pipe 6 is always in the optimal position for powder fluidization, so as to achieve the best spraying effect.

[0037] When changing the powder, remove the powder box 2, fluidizing plate 4 and air inlet chamber 5 as a whole (after cleaning the powder suction pipe 6 and powder pump 7, directly replace the powder box 2, fluidizing plate 4 and air inlet chamber 5 with new ones). The cylinder piston rod extends and drives the mounting bracket 8 to descend until the powder suction pipe 6 is inserted into the powder cleaning pipe 12. Then, air is introduced in the reverse direction (air is introduced from the powder pump 7) so that the powder in the inner cavity of the powder pump 7 and the powder suction pipe 6 is sprayed into the powder cleaning chamber 3. Finally, the powder in the powder cleaning chamber 3 is drawn into the large cyclone separator for secondary use to avoid powder overflow affecting the working environment.

[0038] The powder supply center of this utility model makes the cleaning process of the powder pump cavity convenient, and the powder box and fluidizing plate can be directly replaced, saving the time spent on color changing. At the same time, the powder cleaning is carried out in a closed cleaning chamber, which can prevent the powder from escaping.

[0039] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A powder supply center for self-cleaning powder pumps, characterized in that: Includes the mounting box and the powder box that is detachably connected to the mounting box; The bottom of the mounting box is provided with a sealed powder cleaning chamber, the powder box is set on the powder cleaning chamber, and a fluidizing plate and an air inlet chamber are detachably connected between the powder cleaning chamber and the powder box. The fluidizing plate is connected to the powder box, and the air inlet chamber is connected to an air duct. The powder cleaning chamber is provided with multiple powder cleaning holes. The mounting box is connected to a plurality of powder suction pipes corresponding one-to-one with the powder cleaning holes via a connecting assembly. The powder suction pipes are connected to a powder pump, and the connecting assembly is used to drive the powder suction pipes to move up and down within the mounting box.

2. The powder center for self-cleaning of a powder pump according to claim 1, characterized in that: The connecting assembly includes a mounting bracket, a guide rod, and a driving component. The guide rod is vertically fixed inside the mounting housing. The mounting bracket is slidably connected to the guide rod. The driving component is disposed inside the mounting housing and connected to the mounting bracket. The powder suction tube is connected to the mounting bracket.

3. The powder supply center for self-cleaning of the powder pump according to claim 2, characterized in that: The driving component is a pneumatic cylinder or a hydraulic cylinder.

4. The powder center for self-cleaning of a powder pump according to claim 1, characterized in that: A base is provided between the powder box and the powder cleaning chamber. A powder cleaning tube adapted to the powder cleaning hole is provided through the bottom of the base. The inner diameter of the powder cleaning tube is greater than or equal to the outer diameter of the powder suction tube.

5. The powder center for self-cleaning of a powder pump according to claim 2, characterized in that: The mounting bracket is equipped with a powder detector, which is used to detect the powder level in the powder box.

6. The powder center for self-cleaning of a powder pump according to claim 1, characterized in that: The fluidizing plate is connected to the powder box by bolts.

7. The powder center for self-cleaning of a powder pump according to claim 3, characterized in that: The driving component is a cylinder, and the piston rod of the driving component is threadedly connected to the mounting bracket.

8. The powder supply center for self-cleaning of the powder pump according to claim 3, characterized in that: A bracket is fixedly installed inside the mounting box, and the driving component is mounted on the bracket.

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