Powder spraying machine with powder recovery structure

Abstract

The utility model discloses a powder spraying machine with a powder recovery structure, which relates to the technical field of spraying machines and comprises a support frame, a support plate is fixed on one side of the support frame, a spraying component used for spraying a workpiece is arranged at the top of the support plate, a support seat is arranged on one side of the support frame, and the powder recovery structure is arranged on the support seat. A recycling box used for recycling spraying powder is fixed to one side of the supporting base. The powder spraying device has the beneficial effects that powder falling from the spraying disc is guided through the flow guide cover, so that the powder accurately falls into the recycling box, the powder which is not attached to a workpiece can be directly flushed into the flow guide cover through the impact force sprayed by the spraying gun, the convex block is driven to repeatedly contact with the screening net through the continuous rotation of the driving block, and the powder is recycled. And when the protruding blocks rotate to the lower portion, the springs reset to drive the mounting frame and the screening net to reset, and therefore the screening effect of the screening net on the recycled powder is improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying machine technology, and in particular to a powder spraying machine with a powder recovery structure. Background Technology

[0002] A spray painting machine is a specialized coating equipment that uses spraying technology. It mainly consists of a feeding device, spray gun, and atomization source, and is suitable for industries such as leather goods, furniture, footwear, and automobile manufacturing. The characteristics of a spray painting machine include high construction efficiency, uniform and smooth wall coating, strong paint adhesion, and high paint utilization. Spray painting machines come in various types, such as air sprayers, high-pressure airless sprayers, and electrostatic sprayers, each with its specific application scenarios and advantages.

[0003] Existing spraying machines typically spray powder directly onto workpieces, resulting in powder that scatters everywhere and cannot be recycled. Unattached powder creates dust pollution in the workshop, damaging the production environment. Powder waste directly increases raw material procurement costs, leading to high operating costs. Furthermore, over time, powder adheres to the workbench, and current technology cannot clean and recycle this powder, causing not only powder accumulation and waste but also affecting the subsequent workpiece coating effect. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A powder coating machine with a powder recovery structure includes a support frame, a support plate fixed to one side of the support frame, a spraying assembly for spraying workpieces on the top of the support plate, a support base on one side of the support frame, a recovery box for recovering sprayed powder fixed to one side of the support base, a screening screen for screening the recovered powder installed inside the recovery box, a drive mechanism for vibrating and screening the screening screen inside the recovery box, and a collection box for collecting fine powder installed at the bottom of the recovery box.

[0007] The spraying assembly includes a storage cylinder installed on the top of the support plate. The outside of the storage cylinder is connected to a pump through a pipe. The discharge end of the pump is connected to a connecting hose. One end of the connecting hose is connected to a spray gun for spraying the workpiece.

[0008] The driving mechanism includes a drive motor installed on one side of the recycling bin. A drive rod is fixed to the output end of the drive motor. Multiple sets of drive blocks are fixed to the outside of the drive rod. Protrusions for striking and screening the screening screen are fixed to the outside of the drive blocks.

[0009] As a preferred embodiment of the powder coating machine with powder recovery structure described in this utility model, wherein: an electric push rod for adjusting the spraying height is installed on the top of the support plate, the piston rod of the electric push rod is fixed to a mounting plate, and a limit rod is fixed on the top of the mounting plate.

[0010] As a preferred embodiment of the powder coating machine with powder recovery structure described in this utility model, the top of the support base is fixed with a connecting frame, one side of the connecting frame is fixed with a connecting plate, and one side of the connecting plate is engaged with a coating tray for storing the coated workpiece.

[0011] As a preferred embodiment of the powder coating machine with a powder recovery structure described in this utility model, wherein: the inner wall of the coating disc is slidably connected to a scraper for scraping off adhering powder.

[0012] As a preferred embodiment of the powder coating machine with a powder recovery structure described in this utility model, wherein: a maintenance door is provided on one side of the recovery box, and a flow guide hood is provided on the top of the recovery box for guiding the flow during powder recovery.

[0013] As a preferred embodiment of the powder spraying machine with powder recovery structure described in this utility model, the outer side of the screening screen is slidably connected to a mounting frame, and the top of the screening screen is fixed with a baffle to prevent powder from falling.

[0014] As a preferred embodiment of the powder coating machine with powder recovery structure described in this utility model, the inner wall of the recovery box is fixed with multiple sets of partitions, one side of each partition is fixed with a guide rod for limiting the mounting frame, and a spring is provided on the outer side of the guide rod.

[0015] The beneficial effects of this utility model are as follows: the guide hood guides the powder falling from the spray plate, ensuring that the powder falls precisely into the recovery box. The force of the spray gun directly pushes powder not adhering to the workpiece into the guide hood. The continuous rotation of the drive block causes the protrusion to repeatedly contact the screening screen, improving the screening effect of the screen on the recovered powder. When the protrusion rotates to the bottom, the spring resets, causing the mounting frame and screening screen to reset, further improving the screening effect of the screen on the recovered powder. The collection box collects the small particles of powder after screening. The scraper inside the spray plate scrapes and cleans the powder adhering to the inner wall of the spray plate, facilitating subsequent cleaning and recovery of the adhering powder and improving powder recovery efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is an overall structural diagram of a powder coating machine with a powder recovery structure.

[0018] Figure 2 This is a schematic diagram of the spraying component in a powder coating machine with a powder recovery structure.

[0019] Figure 3 This is a schematic diagram of the recovery box in a powder coating machine with a powder recovery structure.

[0020] Figure 4 This is a schematic diagram of the drive assembly in a powder coating machine with a powder recovery structure.

[0021] The following are the labeling elements in the diagram: 1. Support frame; 2. Support plate; 3. Spraying assembly; 31. Storage cylinder; 32. Pump; 33. Connecting hose; 34. Spray gun; 4. Support base; 5. Recycling bin; 6. Screening screen; 7. Drive mechanism; 71. Drive motor; 72. Drive rod; 73. Drive block; 74. Protrusion; 8. Collection box; 9. Mounting plate; 10. Limiting rod; 11. Connecting frame; 12. Connecting plate; 13. Spraying disc; 14. Scraper; 15. Inspection door; 16. Draft shield; 17. Mounting frame; 18. Baffle; 19. Partition; 20. Guide rod; 21. Spring; 22. Electric push rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1:

[0026] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a powder spraying machine with a powder recovery structure, including a support frame 1, a support plate 2 fixed on one side of the support frame 1, a spraying assembly 3 for spraying workpieces on the top of the support plate 2, a support seat 4 on one side of the support frame 1, a recovery box 5 for recovering sprayed powder fixed on one side of the support seat 4, a screening screen 6 for screening the recovered powder installed inside the recovery box 5, a drive mechanism 7 for vibrating and screening the raw material on the screening screen 6 inside the recovery box 5, and a collection box 8 for collecting fine powder installed at the bottom of the recovery box 5.

[0027] The spraying assembly 3 achieves the effect of spraying the workpiece, the recycling box 5 achieves the effect of recycling the sprayed powder, the screening screen 6 achieves the effect of screening the recycled sprayed powder, the drive mechanism 7 can drive the screening screen 6 to vibrate, thereby improving the screening effect of the screening screen 6 on the powder, and the collection box 8 achieves the effect of collecting the small particles of powder after screening.

[0028] The spraying assembly 3 includes a storage cylinder 31 installed on the top of the support plate 2. The outside of the storage cylinder 31 is connected to a pump 32 via a pipe. The discharge end of the pump 32 is connected to a connecting hose 33. One end of the connecting hose 33 is connected to a spray gun 34 for spraying the workpiece.

[0029] The pump 32 is installed on the top of the support plate 2. The feed end of the pump 32 is connected to the outside of the storage cylinder 31 through a pipe. The pump 32 is a centrifugal pump in the prior art, which is suitable for powder and liquid mixtures with good flowability. The medium is transported by centrifugal force generated by the rotation of the impeller. The pump 32 draws the powder inside the storage cylinder 31 into the spray gun 34, and the spray gun 34 sprays the workpiece.

[0030] The drive mechanism 7 includes a drive motor 71 installed on one side of the recycling bin 5. A drive rod 72 is fixed to the output end of the drive motor 71. Multiple sets of drive blocks 73 are fixed to the outside of the drive rod 72. A protrusion 74 for knocking and screening the screening screen 6 is fixed to the outside of the drive block 73.

[0031] The drive mechanism 7 is located below the screening screen 6. The drive motor 71 can drive the drive rod 72 and the drive block 73 to rotate. The continuous rotation of the drive block 73 causes the protrusion 74 to repeatedly contact the screening screen 6, which improves the screening effect of the screening screen 6 on the recovered powder. The protrusion 74 contacts the solid part of the screening screen 6, avoiding the problem that the screen holes of the screening screen 6 are easily damaged by knocking.

[0032] Example 2:

[0033] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, an electric push rod 22 for adjusting the spraying height is installed on the top of the support plate 2. The piston rod of the electric push rod 22 is fixed to the mounting plate 9, and a limit rod 10 is fixed on the top of the mounting plate 9.

[0035] The spray gun 34 is installed at the bottom of the mounting plate 9. The outer side of the limiting rod 10 is slidably connected to the inner wall of the support frame 1. The mounting plate 9 is driven to move downward by the electric push rod 22, so that the limiting rod 10 slides inside the support frame 1. The mounting plate 9 drives the spray gun 34 to move, so as to achieve the effect of adjusting the spraying height.

[0036] Specifically, a connecting frame 11 is fixed to the top of the support base 4, a connecting plate 12 is fixed to one side of the connecting frame 11, and a spraying tray 13 for storing the sprayed workpiece is snapped onto one side of the connecting plate 12.

[0037] The spraying disc 13 is installed between two sets of connecting plates 12. The inside of the spraying disc 13 has through holes, and the sprayed powder can directly enter the recycling bin 5 through the through holes. The spraying disc 13 is secured to one side of the connecting plate 12 by a locking block, which facilitates the subsequent disassembly of the spraying disc 13 and the cleaning and recycling of the powder adhering inside the spraying disc 13.

[0038] Specifically, the inner wall of the spraying disc 13 is slidably connected to a scraper 14 for scraping off adhering powder.

[0039] Pulling the scraper 14 inside the spraying disc 13 achieves the effect of scraping and cleaning the powder adhering to the inner wall of the spraying disc 13, which facilitates the subsequent cleaning and recycling of the adhering powder and improves the powder recycling efficiency.

[0040] Example 3:

[0041] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0042] Specifically, a maintenance door 15 is provided on one side of the recycling bin 5, and a flow guide hood 16 is provided on the top of the recycling bin 5 for guiding the flow during powder recycling.

[0043] The inspection door 15 facilitates the disassembly of the screening screen 6 inside the recycling bin 5 and the cleaning of the inside of the recycling bin 5. The guide shroud 16 guides the powder falling from the spray plate 13 so that the powder falls accurately into the recycling bin 5. The force of the spray gun 34 can directly flush the powder that is not attached to the workpiece into the guide shroud 16.

[0044] Specifically, a mounting bracket 17 is slidably connected to the outer side of the sieve screen 6, and a baffle 18 is fixed to the top of the sieve screen 6 to prevent powder from falling.

[0045] The sieve 6 can be installed via the mounting bracket 17, which facilitates its subsequent disassembly and cleaning. The baffle 18 facilitates the storage of larger particles of powder after sieving.

[0046] Specifically, the inner wall of the recycling bin 5 is fixed with multiple sets of partitions 19, and a guide rod 20 is fixed on one side of the partition 19 to limit the mounting bracket 17. A spring 21 is provided on the outer side of the guide rod 20.

[0047] Two sets of partitions 19 are fixed on both sides of the inner wall of the recycling bin 5. The mounting frame 17 is located between the two sets of partitions 19. The outer side of the guide rod 20 is slidably connected to the inner wall of the mounting frame 17. The spring 21 is located above the mounting frame 17. When the protrusion 74 pushes the screening screen 6 to vibrate, it will drive the mounting frame 17 to slide on the outer side of the guide rod 20, causing the spring 21 to contract. When the protrusion 74 rotates to the bottom, the spring 21 resets, which will drive the mounting frame 17 and the screening screen 6 to reset, thereby improving the screening effect of the screening screen 6 on the recycled powder.

[0048] In use, the workpiece to be sprayed is placed inside the spraying disc 13. The powder from the storage cylinder 31 is drawn into the spray gun 34 by the pump 32. The spray gun 34 then sprays the workpiece. The electric push rod 22 moves the mounting plate 9 downwards, causing the limit rod 10 to slide inside the support frame 1. The mounting plate 9 moves the spray gun 34, adjusting the spraying height. The spraying disc 13 has through holes, allowing the sprayed powder to directly enter the recovery box 5. The guide shroud 16 guides the powder falling from the spraying disc 13, ensuring precise placement in the recovery box 5. The force of the spray gun 34 also directly flushes any powder not adhering to the workpiece into the guide shroud 16. The mounting bracket 17 allows for the installation of the screening screen 6, facilitating subsequent disassembly and cleaning. The baffle 18 facilitates the subsequent storage of larger particles of powder after sieving. The drive motor 71 drives the drive rod 72 and drive block 73 to rotate. The continuous rotation of the drive block 73 causes the protrusion 74 to repeatedly contact the sieve screen 6, improving the sieving effect of the sieve screen 6 on the recovered powder. When the protrusion 74 pushes the sieve screen 6 to vibrate, it will cause the mounting frame 17 to slide outside the guide rod 20, causing the spring 21 to contract. When the protrusion 74 rotates to the bottom, the spring 21 resets, which will drive the mounting frame 17 and the sieve screen 6 to reset, thereby improving the sieving effect of the sieve screen 6 on the recovered powder. The collection box 8 achieves the effect of collecting the small particles of powder after sieving. The scraper 14 is pulled inside the spraying disc 13 to achieve the effect of scraping and cleaning the powder adhering to the inner wall of the spraying disc 13, which facilitates the subsequent cleaning and recycling of the adhering powder and improves the powder recovery efficiency.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A powder coating machine with a powder recovery structure, comprising a support frame (1), characterized in that: A support plate (2) is fixed to one side of the support frame (1). A spraying assembly (3) for spraying the workpiece is provided on the top of the support plate (2). A support base (4) is provided on one side of the support frame (1). A recycling box (5) for recycling the sprayed powder is fixed to one side of the support base (4). A sieve screen (6) for screening the recycled powder is installed inside the recycling box (5). A drive mechanism (7) for vibrating and screening the sieve screen (6) is provided inside the recycling box (5). A collection box (8) for collecting fine powder is installed at the bottom of the recycling box (5). The spraying assembly (3) includes a storage cylinder (31) installed on the top of the support plate (2). The outside of the storage cylinder (31) is connected to a pump (32) through a pipe. The discharge end of the pump (32) is connected to a connecting hose (33). One end of the connecting hose (33) is connected to a spray gun (34) for spraying the workpiece. The drive mechanism (7) includes a drive motor (71) installed on one side of the recycling bin (5). A drive rod (72) is fixed to the output end of the drive motor (71). Multiple sets of drive blocks (73) are fixed to the outside of the drive rod (72). A protrusion (74) for knocking and screening the screening screen (6) is fixed to the outside of the drive block (73).

2. The powder coating machine with a powder recovery structure as described in claim 1, characterized in that: The top of the support plate (2) is equipped with an electric push rod (22) for adjusting the spraying height. The piston rod of the electric push rod (22) is fixed with a mounting plate (9). The top of the mounting plate (9) is fixed with a limit rod (10).

3. The powder coating machine with a powder recovery structure as described in claim 1, characterized in that: The top of the support base (4) is fixed with a connecting frame (11), and a connecting plate (12) is fixed on one side of the connecting frame (11). A spraying tray (13) for storing the sprayed workpiece is snapped onto one side of the connecting plate (12).

4. The powder coating machine with a powder recovery structure as described in claim 3, characterized in that: The inner wall of the spraying disc (13) is slidably connected to a scraper (14) for scraping off the sticky powder.

5. The powder coating machine with a powder recovery structure as described in claim 1, characterized in that: The recycling bin (5) is provided with an inspection door (15) on one side, and a flow guide hood (16) is provided on the top of the recycling bin (5) for guiding the flow during powder recycling.

6. The powder coating machine with a powder recovery structure as described in claim 1, characterized in that: The outer side of the sieve (6) is slidably connected to a mounting bracket (17), and the top of the sieve (6) is fixed with a baffle (18) to prevent powder from falling.

7. The powder coating machine with a powder recovery structure as described in claim 6, characterized in that: The inner wall of the recycling bin (5) is fixed with multiple sets of partitions (19). A guide rod (20) for limiting the mounting frame (17) is fixed on one side of the partition (19). A spring (21) is provided on the outside of the guide rod (20).

Images