A feeding device for powder coating

Abstract

The utility model relates to the technical field of powder coatings, in particular to a feeding device for powder coatings, comprising a frame, a conveyor belt being arranged on the frame, a feeding mechanism being arranged on the frame above the conveyor belt, the feeding mechanism comprising a feeding shell, the feeding shell being a square shell-shaped structure with one side open; a material conveying fan is installed on the frame, a feed pipe is installed at an air inlet of the material conveying fan, and a discharge pipe is installed at an air outlet of the material conveying fan; a plurality of distribution pipes are connected to the discharge pipe, one end of the distribution pipe passes through the side wall of the feeding shell and extends to the inside of the feeding shell, a spray head is installed on the pipe body of the distribution pipe located inside the feeding shell, the spray head is connected to the distribution pipe, and a filter element is arranged in the spray head.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coatings, in particular to a feeding device for powder coatings. Background Art

[0002] Powder coating is a kind of coating in the form of fine powder. It is called powder coating because it does not use solvents. Powder coating has the characteristics of being harmless, efficient, resource-saving and environmentally friendly. The process of feeding powder coating mainly involves the following steps: preparing powder coating, loading, adjusting equipment parameters, starting feeding, spraying, checking quality and cleaning. Most of the existing powder coatings use screw rods for feeding during the feeding process. Since the screw transmission will cause part of the powder coating to be squeezed together, it is easy to cause the powder coating to agglomerate and stick together, affecting the continuity and uniformity of the spraying, and affecting the use effect of the coating. At the same time, since the transmission device is located inside, it is difficult to maintain and the work efficiency is low.

[0003] In order to solve the above technical problems, Chinese patent CN212855622U discloses a feeding mechanism of a powder coating mixer, including a work frame, a mixer arranged on the work frame, and a feeding mechanism arranged on one side of the mixer, wherein an opening for feeding is arranged on the outer wall of the mixer, and the feeding mechanism includes a shell, a conveyor belt, a bracket, a feeding hopper, and a driving motor, wherein one end of the shell is fixed on the outer wall of the mixer and surrounds the opening, and the other end of the shell is close to the ground so that the shell forms an acute angle with the horizontal plane for easy climbing and feeding, the conveyor belt is arranged in the shell for conveying raw materials, the bracket is arranged below the shell for supporting the shell, the feeding hopper is arranged at one end of the shell away from the mixer and is connected to the shell so that the raw materials reach the conveyor belt through the feeding hopper, and the driving motor is arranged on the side wall of the shell for driving the conveyor belt to move; the above patent improves the problems of the existing mixer's cumbersome feeding method, high labor intensity of workers, low work efficiency, and difficult maintenance. However, it still uses the common conveyor belt for feeding, which cannot break the agglomerated or bonded materials, and thus cannot ensure the uniformity and stability of feeding.

[0004] Therefore, it is necessary for those skilled in the art to provide a feeding device for powder coatings to improve the uniformity and stability of powder coating feeding, reduce agglomeration, and improve work efficiency. Utility Model Content

[0005] The utility model aims to provide a feeding device for powder coatings, so as to solve the technical problem in the prior art that the powder coatings are prone to generate coating agglomerates during the feeding process, thereby affecting the spraying uniformity.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a feeding device for powder coating, comprising a frame, a conveyor belt is arranged on the frame, a feeding mechanism is arranged on the frame above the conveyor belt, the feeding mechanism comprises a feeding shell, the feeding shell is a square shell-shaped structure with one side open; a material conveying fan is installed on the frame, a feed pipe is installed at the air inlet of the material conveying fan, and a discharge pipe is installed at the air outlet of the material conveying fan; a plurality of distribution pipes are connected to the discharge pipe, one end of the distribution pipe passes through the side wall of the feeding shell and extends to the inside of the feeding shell, a spray head is installed on the pipe body of the distribution pipe located inside the feeding shell, the spray head is connected to the distribution pipe, and a filter element is arranged in the spray head.

[0007] Furthermore, one end of the spray head penetrates the body of the material distribution pipe and extends inwardly, and the other end of the spray head is in a flat trumpet shape and faces the upper surface of the conveyor belt.

[0008] Furthermore, a threaded section is formed at the end of the spray head, a bolt is threadedly connected to the threaded section, the threaded section passes through the distribution pipe and extends inwardly, and the threaded section is threadedly connected to the wall of the distribution pipe.

[0009] Furthermore, the bolt abuts against the outer wall of the material distribution pipe, and a rubber gasket is provided between the bolt and the material distribution pipe.

[0010] Furthermore, a discharge hole is provided in the axial direction on the spray head, the discharge hole penetrates the wall of the spray head, and the end of the discharge hole away from the material distribution pipe is trumpet-shaped, and the filter element is installed in the discharge hole.

[0011] Furthermore, the filter element is a filter mesh, and the filter pore size of the filter element is 100 to 500 μm.

[0012] Furthermore, there are three material distribution pipes, and valve bodies and detection gauges are respectively provided on the three material distribution pipes.

[0013] Furthermore, the feeding shell is installed on the frame and is located above the conveyor belt, and the opening surface of the feeding shell faces the upper plane of the conveyor belt.

[0014] Furthermore, a passage opening is provided on the feeding shell, and the passage opening penetrates the wall of the feeding shell along the moving direction of the conveyor belt.

[0015] Furthermore, a fixing bracket is provided on the top wall of the feeding shell, and the material distribution pipe is embedded in the fixing bracket.

[0016] The beneficial effects of the utility model are as follows: the utility model can add a filter element to the spray head to reduce the spraying of agglomerated powder coatings and improve the uniformity and stability of feeding; at the same time, the utility model uses multiple distribution pipes to ensure the uniformity and stability of the powder coating feeding, effectively improving the uniformity of spraying. When one of the distribution pipes fails or is blocked, the valve body on it can be closed to start another distribution pipe, thereby ensuring the continuity of processing, improving processing efficiency, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a feeding device for powder coating of the utility model.

[0018] Figure 2 It is a top view of a feeding device for powder coating of the utility model.

[0019] Figure 3 yes Figure 2 Section view along AA (counterclockwise).

[0020] Figure 4 yes Figure 3 A partial enlarged schematic diagram of area B in the middle.

[0021] The markings of the components in the accompanying drawings are as follows: 10, frame; 11, conveyor belt; 12, mounting groove; 20, feeding mechanism; 21, feeding shell; 22, feed pipe; 23, discharge pipe; 24, distribution pipe; 25, material conveying fan; 26, spray head; 261, threaded section; 262, bolt; 263, discharge hole; 27, filter element; 28, fixing bracket; 29, channel opening. DETAILED DESCRIPTION

[0022] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0023] See also Figure 1 , Figure 2 The utility model provides a feeding device for powder coating, including a frame 10, a conveyor belt 11 is arranged on the frame 10, and a feeding mechanism 20 is arranged on the frame 10 above the conveyor belt 11. When in use, a workpiece to be sprayed is placed on the conveyor belt 11, and the workpiece passes through the feeding mechanism 20, and the powder coating is sprayed onto the workpiece by the feeding mechanism 20 to complete the feeding.

[0024] In this embodiment, the conveyor belt 11 is evenly provided with a plurality of mounting grooves 12, and the workpiece is mounted in the mounting grooves 12 to ensure stability during transportation. The frame 10 is also provided with a driving motor (not shown in the figure), and the driving motor is used to drive the conveyor belt 11 to rotate, thereby realizing the movement of the workpiece. When in use, the workpiece is manually placed in the mounting groove 12, and the workpiece is sprayed after passing through the loading mechanism 20, and finally the workpiece is manually taken out to complete the loading and unloading of the workpiece.

[0025] For further information, see Figure 3 , Figure 4 The feeding mechanism 20 includes a feeding shell 21, which is a square shell structure with one side open. The feeding shell 21 is installed on the frame 10 and is located above the conveyor belt 11. The opening surface of the feeding shell 21 faces the upper plane of the conveyor belt 11.

[0026] The loading shell 21 is also provided with a passage opening 29, which passes through the front and rear walls of the loading shell 21 along the moving direction of the conveyor belt 11. When in use, the workpiece is installed on the transmission belt 11. During the movement of the conveyor belt 11, the workpiece passes through the loading shell 21 through the passage opening 29, thereby achieving stable transmission.

[0027] In this embodiment, a barrier curtain (not shown) is installed on the passage opening 29. The barrier curtain is made of soft material, including but not limited to non-woven fabric. The utility model utilizes the barrier curtain to reduce the dispersion of the powder coating during the spraying process, thereby ensuring the cleanliness of the processing environment.

[0028] Furthermore, a material conveying fan 25 is installed on the frame 10, a feed pipe 22 is installed at the air inlet of the material conveying fan 25, a discharge pipe 23 is installed at the air outlet of the material conveying fan 25, and the feed pipe 22 is connected to a storage tank (not shown), and the powder coating is placed in the storage tank to ensure the stability of feeding. When in use, the powder coating in the storage tank is sucked out by the material conveying fan 25, and then discharged through the discharge pipe 23. It can be understood that the material conveying fan 25 is a common powder material conveying fan on the market.

[0029] Furthermore, the discharge pipe 23 is connected to a plurality of distribution pipes 24, one end of which penetrates the side wall of the feeding shell 21 and extends into the inside of the feeding shell 21. A spray head 26 is installed on the pipe body of the distribution pipe 24 located inside the feeding shell 21. The spray head 26 is connected to the distribution pipe 24.

[0030] In this embodiment, a fixing bracket 28 is provided on the top wall of the feeding shell 21, and the material distribution pipe 24 is connected to the fixing bracket 28 by being snap-fitted, so as to ensure the stability in use. There are three material distribution pipes 24, and each of the three material distribution pipes 24 is provided with a valve body and a detection gauge (not shown in the figure), wherein the valve body includes but is not limited to a ball valve, and the detection gauge includes but is not limited to a pressure gauge; when in use, the valve body is used to realize the opening and closing of the material distribution pipe 24, and the pressure gauge can effectively monitor the pressure value to ensure the stability in the working process.

[0031] The utility model utilizes multiple feed pipes 24 to ensure the uniformity and stability of the powder coating material, and effectively improves the uniformity of spraying. When one of the feed pipes 24 fails or is blocked, the valve body on it can be closed to start another feed pipe 24, thereby ensuring the continuity of processing, improving processing efficiency, and reducing maintenance costs.

[0032] Furthermore, one end of the spray head 26 penetrates the body of the material distribution pipe 24 and extends inward, and the other end of the spray head 26 is flat and trumpet-shaped and faces the upper surface of the conveyor belt 11. A filter element 27 is provided in the spray head 26, and the filter element 27 includes but is not limited to a filter mesh, and the filter pore size of the filter element 27 is 100-500 μm.

[0033] When in use, the filter element 27 is utilized to reduce the spraying of agglomerated powder coating, thereby improving the uniformity and stability of feeding. Meanwhile, when the filter element 27 is clogged, the feed pipe 24 where the clogged filter element 27 is located is directly closed, and other feed pipes 24 are activated, thereby ensuring the continuity of feeding and improving the use effect.

[0034] In this embodiment, a threaded section 261 is formed at the end of the spray head 26, and a bolt 262 is threadedly connected to the threaded section 261. The threaded section 261 passes through the distribution pipe 24 and extends inward. The threaded section 261 is threadedly connected to the wall of the distribution pipe 24 to ensure the stability and sealing of the connection.

[0035] The bolt 262 abuts against the outer wall of the distribution pipe 24, and a rubber gasket (not shown) is provided between the bolt 262 and the distribution pipe 24; when in use, the spray head 26 is stably connected to the distribution pipe 24 by rotating the bolt 262 to ensure the stability of the connection. At the same time, the rubber gasket can ensure the stability and sealing of the connection, and prevent the bolt 262 from being over-tightened, prevent the distribution pipe 24 from being deformed, and further improve the stability and service life of the utility model.

[0036] The spray head 26 is provided with a discharge hole 263 along the axial direction, and the discharge hole 263 penetrates the wall of the spray head 26. The end of the discharge hole 263 away from the distribution pipe 24 is trumpet-shaped to increase the spraying area and ensure spraying uniformity; the filter element 27 is installed in the discharge hole 263 to filter the powder coating.

[0037] The specific operation method of the utility model is: placing the workpiece to be sprayed on the conveyor belt 11, allowing the workpiece to pass through the feeding mechanism 20, starting some of the multiple feeding pipes 24, spraying the powder coating onto the workpiece, and completing the feeding.

[0038] The utility model can add a filter element 27 to the spray head 26 to reduce the agglomerated powder coating from being sprayed out, and improve the uniformity and stability of feeding; at the same time, the utility model uses multiple distribution pipes 24 to ensure the uniformity and stability of the powder coating feeding, and effectively improves the uniformity of spraying. When one of the distribution pipes 24 fails or is blocked, the valve body on it can be closed to start another distribution pipe 24, thereby ensuring the continuity of processing, improving processing efficiency, and reducing maintenance costs.

[0039] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A feeding device for powder coating, comprising a frame (10), a conveyor belt (11) being arranged on the frame (10), and a feeding mechanism (20) being arranged on the frame (10) above the conveyor belt (11), characterized in that: The feeding mechanism (20) comprises a feeding shell (21), and the feeding shell (21) is a square shell structure with one side open; a material conveying fan (25) is installed on the frame (10), and a feeding pipe (22) is installed at the air inlet of the material conveying fan (25), and a discharge pipe (23) is installed at the air outlet of the material conveying fan (25); the discharge pipe (23) is connected to a plurality of distribution pipes (24), one end of the distribution pipe (24) passes through the side wall of the feeding shell (21) and extends to the inside of the feeding shell (21), and a spray head (26) is installed on the pipe body of the distribution pipe (24) located inside the feeding shell (21), the spray head (26) is connected to the distribution pipe (24), and a filter element (27) is provided in the spray head (26).

2. The powder coating feeding device according to claim 1, characterized in that: One end of the spray head (26) penetrates the body of the material distribution pipe (24) and extends inwardly, and the other end of the spray head (26) is in a flat trumpet shape and faces the upper surface of the conveyor belt (11).

3. The powder coating feeding device according to claim 2, characterized in that: A threaded section (261) is formed at the end of the spray head (26), a bolt (262) is threadedly connected to the threaded section (261), the threaded section (261) penetrates the material distribution pipe (24) and extends inwardly, and the threaded section (261) is threadedly connected to the wall of the material distribution pipe (24).

4. The powder coating feeding device according to claim 3, characterized in that: The bolt (262) abuts against the outer wall of the material distribution pipe (24), and a rubber gasket is provided between the bolt (262) and the material distribution pipe (24).

5. The powder coating feeding device according to claim 4, characterized in that: The spray head (26) is provided with a discharge hole (263) in the axial direction. The discharge hole (263) penetrates the wall of the spray head (26). The end of the discharge hole (263) away from the material distribution pipe (24) is trumpet-shaped. The filter element (27) is installed in the discharge hole (263).

6. The powder coating feeding device according to claim 5, characterized in that: The filter element (27) is a filter mesh, and the filter pore size of the filter element (27) is 100 to 500 μm.

7. The powder coating feeding device according to claim 1, characterized in that: The three material distribution pipes (24) are provided, and the three material distribution pipes (24) are respectively provided with a valve body and a detection gauge.

8. The powder coating feeding device according to claim 1, characterized in that: The loading shell (21) is mounted on the frame (10) and is located above the conveyor belt (11), and the opening surface of the loading shell (21) faces the upper plane of the conveyor belt (11).

9. The powder coating feeding device according to claim 8, characterized in that: The loading shell (21) is provided with a passage opening (29), and the passage opening (29) penetrates the wall of the loading shell (21) along the moving direction of the conveyor belt (11).

10. The powder coating feeding device according to claim 1, characterized in that: A fixing bracket (28) is provided on the top wall of the feeding shell (21), and the material distribution pipe (24) is snap-fitted and connected in the fixing bracket (28).

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