Powder recovery device for metal coating powder spraying equipment

Abstract

The utility model discloses a powder recovery unit of metal coating powder spraying equipment belongs to the field of coating equipment, two linear guides are fixedly installed on the both sides upper end position of material box, and the sliding installation of linear guide all has horizontal shift support, and the both ends of scraper are elastically connected with two horizontal shift support lower end respectively, and the air outlet end of fan is connected with the air conveying pipeline through the air inlet pipe intercommunication, and one end of swing air pipe is rotatably installed on the air conveying pipeline and is connected with the air conveying pipeline intercommunication. The utility model discloses through swing air pipe under the action of wind force, and the powder of metal part surface excess and coating platform screen can be blown to the powder drawer, and swing air pipe can be stored, avoids the influence to metal part placement and powder spraying, improves powder spraying efficiency, and linear guide can drive scraper to move along the coating platform screen surface through horizontal shift support, and air conveying pipeline can also blow air to the scraper position, and under the action of both, can sweep the powder remaining on coating platform screen into the powder drawer, improves cleaning efficiency and effect.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically to a powder recovery device for metal coating powder spraying equipment. Background Technology

[0002] Coating is a material protection technology that uses paint to form an organic coating on the surface of a substrate material. It can prevent rust and corrosion, and protect objects such as metal, wood, stone and plastic from being corroded by light, rain, dew, water and various other media. Covering objects with paint is one of the most convenient and reliable protective methods, which can protect objects and extend their service life.

[0003] Upon investigation, a Chinese utility model patent disclosed a powder spraying device for electrostatic powder coating, publication number: CN217368920 U, which includes a device shell, a coating storage box installed at the bottom of the inner wall of the device shell, a coating outlet provided on one side of the coating storage box, a connecting pipe connected to the inner wall of the coating outlet, a coating spray pipe connected to the other end of the connecting pipe, and a coating nozzle connected to the bottom end of the coating spray pipe.

[0004] Although the aforementioned patent can collect excess paint during the spraying process using a filter and blower, the powder recovery method of the device is too simple, resulting in low paint collection efficiency. This is because it simply blows the powder directly through a blower, causing the powder to adhere to the filter surface. Over time, this leads to an accumulation of powder on the filter, affecting the proper placement of metal parts and reducing spraying efficiency. Furthermore, the blower is positioned directly above the filter, which can interfere with the proper placement and spraying of large metal parts.

[0005] Therefore, this utility model provides a powder recovery device for metal coating powder spraying equipment to solve the above problems. Utility Model Content

[0006] This utility model provides a powder recovery device for metal coating powder spraying equipment, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a powder recovery device for metal coating powder spraying equipment, including a material box and a coating platform screen, the coating platform screen being fixedly installed inside the material box, and also including a fan, air supply pipe, swing pipe, scraper and two linear guide rails located above the coating platform screen. Two linear guides are fixedly installed on the upper ends of the two sides of the material box. A transverse support is slidably installed on each linear guide. The lower end of the transverse support is inserted into the material box. The two ends of the scraper are elastically connected to the lower ends of the two transverse supports respectively. The air duct is fixedly installed between the upper ends of the two transverse supports. The material box has a powder storage drawer that is pulled out at the lower end of its interior. The blower is fixedly installed on one side of the material box, and the air outlet of the blower is connected to the air conveying pipeline through the air inlet pipe; One end of the swing duct is rotatably installed on the air supply pipe and connected to the air supply pipe. Multiple air outlet nozzles are evenly installed along the length of the bottom of both the swing duct and the air supply pipe.

[0008] As a preferred technical solution of this application, both ends of the scraper are fixedly provided with vertically upward protruding rods, and the bottom of the transverse support is provided with a slot for inserting the protruding rods. A spring is fixedly installed at the top of the slot, and the lower end of the spring is fixedly connected to the upper end of the corresponding protruding rod.

[0009] As a preferred technical solution of this application, fine mesh filters are fixedly installed at the lower ends of both sides of the material box and on both sides of the powder storage drawer.

[0010] As a preferred technical solution of this application, a through hole is provided in the middle of the upper surface of the air supply pipe, and a shaft tube is fixedly installed at one end of the bottom of the swing pipe. The shaft tube is connected to the inside of the swing pipe and is movably inserted into the through hole.

[0011] As a preferred technical solution of this application, a partition is fixedly installed inside the air supply duct, which divides the inside of the air supply duct into upper and lower chambers. A solenoid valve is fixedly installed on the partition, and the two ends of the solenoid valve are respectively connected to the two chambers.

[0012] As a preferred technical solution of this application, a threaded hole is provided at one end of the upper part of the swing duct, and a knob bolt is installed in the threaded hole, with the screw of the knob bolt inserted into the shaft tube.

[0013] As a preferred technical solution of this application, a limiting sleeve is fixedly installed on the upper surface of the air supply pipe at the through hole position, the inner ring of the limiting sleeve is provided with an annular groove, and the surface of the shaft tube is fixedly provided with an annular rib that is movably engaged with the annular groove.

[0014] As a preferred technical solution of this application, the air inlet pipe is a telescopic corrugated pipe.

[0015] As a preferred technical solution of this application, an opening is provided at the lower end of the front surface of the material box, and the powder storage drawer is inserted into the material box through the opening. A handle is fixedly installed on the front side of the powder storage drawer.

[0016] As a preferred technical solution of this application, a rubber strip is fixedly installed at the bottom of the scraper.

[0017] This utility model has two powder recovery methods. One method is to rotate the swing pipe to the position of the metal part, and then start the fan. The air blown out by the fan can enter the swing pipe and blow the air through the air outlet nozzle of the swing pipe to the metal part of the box and the coating platform screen. Under the action of the wind, the excess powder on the surface of the metal part and the powder on the coating platform screen can be blown to the powder storage drawer. The swing pipe can be stored there to avoid affecting the placement of the metal part and the powder spraying, and improve the powder spraying efficiency. Secondly, when it is necessary to carefully clean the residual powder on the coating platform screen, start the fan and linear guide rail. The linear guide rail can drive the scraper to move along the surface of the coating platform screen through the transverse support. The air supply pipe can also blow air to the scraper position. Under the action of both, the residual powder on the coating platform screen can be swept into the powder storage drawer, which improves the cleaning efficiency and effect. Attached Figure Description

[0018] Figure 1 A perspective view of the powder recovery device in a metal coating powder spraying equipment; Figure 2 A cross-sectional view of the powder recovery device in a metal coating powder spraying equipment; Figure 3 A cross-sectional view of the transverse support in the powder recovery device of a metal coating powder spraying equipment; Figure 4 A structural diagram of the filter screen of the powder recovery device in a metal coating powder spraying equipment; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a structural diagram showing the ductwork in its retracted state.

[0019] 1. Material bin; 2. Coating platform mesh; 3. Linear guide rail; 4. Horizontal movement bracket; 5. Air supply duct; 6. Swing duct; 7. Scraper; 8. Fine mesh filter; 9. Powder storage drawer; 10. Opening; 11. Fan; 12. Air inlet duct; 13. Air outlet nozzle; 14. Adhesive strip; 15. Protruding rod; 16. Slot; 17. Spring; 18. Knob bolt; 19. Shaft tube; 20. Limit sleeve; 21. Ring rib; 22. Solenoid valve. Detailed Implementation

[0020] 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.

[0021] like Figures 1-5As shown, this utility model provides a powder recovery device for metal coating powder spraying equipment, including a material box 1 and a coating platform screen 2. The coating platform screen 2 is fixedly installed inside the material box 1. It also includes a fan 11, an air conveying pipe 5, an air swing pipe 6, a scraper 7 and two linear guide rails 3 located above the coating platform screen 2. Two linear guide rails 3 are fixedly installed on the upper ends of the two sides of the material box 1. A transverse support 4 is slidably installed on each linear guide rail 3. The lower end of the transverse support 4 is inserted into the material box 1. The two ends of the scraper 7 are elastically connected to the lower ends of the two transverse supports 4 respectively. The air duct 5 is fixedly installed between the upper ends of the two transverse supports 4. The lower part of the material box 1 is equipped with a powder storage drawer 9 that can be pulled out. The blower 11 is fixedly installed on one side of the material box 1, and the air outlet of the blower 11 is connected to the air conveying pipe 5 through the air inlet pipe 12. One end of the swing duct 6 is rotatably installed on the air supply pipe 5 and connected to the air supply pipe 5. Multiple air outlet nozzles 13 are evenly installed along the length direction at the bottom of both the swing duct 6 and the air supply pipe 5.

[0022] In this embodiment, both ends of the scraper 7 are fixed with vertically upward protruding rods 15, and the bottom of the transverse support 4 is provided with a slot 16 for inserting the protruding rods 15. A spring 17 is fixedly installed at the top of the slot 16, and the lower end of the spring 17 is fixedly connected to the upper end of the corresponding protruding rod 15.

[0023] Furthermore, in order to reduce the reverse force of the air blown towards the powder storage drawer 9 and ensure that the powder can smoothly enter the powder storage drawer 9, in this embodiment, fine mesh filters 8 are fixedly installed at the lower ends of both sides of the material box 1 and both sides of the powder storage drawer 9.

[0024] To reduce the impact of the oscillating duct 6 on the position of the metal components obstructing powder spraying on the coating platform mesh plate 2, in this embodiment, a through hole is provided in the middle of the upper surface of the air supply duct 5, and a shaft tube 19 is fixedly installed at one bottom end of the oscillating duct 6. The shaft tube 19 communicates with the inside of the oscillating duct 6 and is movably inserted into the through hole. Figure 6 As shown, the swing duct 6 can be rotated to be flush with the air supply duct 5 to prevent the swing duct 6 from affecting the placement of metal parts and the powder spraying operation.

[0025] In this embodiment, a partition is fixedly installed inside the air supply duct 5, which divides the interior of the air supply duct 5 into upper and lower chambers. A solenoid valve 22 is fixedly installed on the partition, and the two ends of the solenoid valve 22 are respectively connected to the two chambers.

[0026] Furthermore, to ensure that the air duct 5 can blow a strong wind towards the scraper 7 during the cleaning process and avoid the swing pipe 6 occupying the air volume, in this embodiment, a threaded hole is opened at one end of the upper part of the swing pipe 6, and a knob bolt 18 is installed in the threaded hole. The screw of the knob bolt 18 is inserted into the shaft tube 19.

[0027] Furthermore, to prevent the shaft tube 19 from dislodging from the through hole, in this embodiment, a limiting sleeve 20 is fixedly installed on the upper surface of the air duct 5 at the through hole position. The inner ring of the limiting sleeve 20 is provided with an annular groove, and the surface of the shaft tube 19 is fixedly provided with an annular rib 21 that engages with the annular groove.

[0028] Furthermore, to ensure that the air inlet pipe 12 can move smoothly with the transverse support 4, in this embodiment, the air inlet pipe 12 is a telescopic corrugated pipe.

[0029] In this embodiment, an opening 10 is provided at the lower end of the front surface of the material box 1, and the powder storage drawer 9 is inserted into the material box 1 through the opening 10. A handle is fixedly installed on the front side of the powder storage drawer 9 to facilitate the staff to open the powder storage drawer 9 to clean the collected powder.

[0030] Furthermore, to improve the cleaning effect, in this embodiment, an adhesive strip 14 is fixedly installed at the bottom of the scraper 7. The adhesive strip 14 can be tightly attached to the upper surface of the coating platform screen 2, and the powder is swept into the powder storage drawer 9 during the movement process.

[0031] The specific operating steps are as follows: The metal parts are placed on the coating platform screen 2 for powder spraying. When it is necessary to clean the powder during the powder spraying process, simply unscrew the knob bolt 18 to disengage its screw from the shaft tube 19, close the solenoid valve 22, rotate the swing pipe 6 to the position of the metal parts, and then start the fan 11. The air blown out by the fan 11 can enter the swing pipe 6, and blow the air through the air outlet nozzle 13 of the swing pipe 6 to the metal parts of the box and the coating platform screen 2. Under the action of the wind, the excess powder on the surface of the metal parts and the powder on the coating platform screen 2 can be blown to the powder storage drawer 9. When it is necessary to carefully clean the residual powder on the coating platform screen 2, screw the knob bolt 18 into the shaft tube 19, then open the solenoid valve 22, start the fan 11 and the linear guide rail 3. The linear guide rail 3 can drive the scraper 7 to move along the surface of the coating platform screen 2 through the transverse support 4. The air supply pipe 5 can also blow air to the scraper 7. Under the action of both, the residual powder on the coating platform screen 2 can be swept into the powder storage drawer 9.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A powder recovery device of a metal coating powder spraying equipment, comprising a bin (1) and a coating platform screen plate (2), the coating platform screen plate (2) is fixedly installed in the bin (1), characterized in that: It also includes a fan (11), an air duct (5), a swing duct (6), a scraper (7), and two linear guide rails (3) located above the coating platform mesh (2); The two linear guide rails (3) are fixedly installed on the upper ends of the two sides of the material box (1). A transverse support (4) is slidably installed on each of the linear guide rails (3). The lower end of the transverse support (4) is inserted into the material box (1). The two ends of the scraper (7) are elastically connected to the lower ends of the two transverse supports (4). The air conveying pipe (5) is fixedly installed between the upper ends of the two transverse supports (4). The material box (1) has a powder storage drawer (9) installed in a pull-out manner at the lower end of the interior. The blower (11) is fixedly installed on one side of the material box (1), and the air outlet of the blower (11) is connected to the air conveying pipe (5) through the air inlet pipe (12); One end of the swing pipe (6) is rotatably installed on the air supply pipe (5) and connected to the air supply pipe (5). Multiple air outlet nozzles (13) are evenly installed at the bottom of both the swing pipe (6) and the air supply pipe (5) along the length direction.

2. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: Both ends of the scraper (7) are fixed with vertically upward protruding rods (15). The bottom of the transverse support (4) is provided with a slot (16) for inserting the protruding rods (15). A spring (17) is fixedly installed at the top of the slot (16). The lower end of the spring (17) is fixedly connected to the upper end of the corresponding protruding rod (15).

3. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: Fine mesh filters (8) are fixedly installed on both sides of the lower end of the material box (1) and both sides of the powder storage drawer (9).

4. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: The air supply pipe (5) has a through hole in the middle of its upper surface. The bottom end of the swing pipe (6) is fixedly installed with a shaft tube (19). The shaft tube (19) is connected to the swing pipe (6) and is movably inserted into the through hole.

5. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: The air supply pipe (5) is fixedly installed with a partition, which divides the interior of the air supply pipe (5) into upper and lower chambers. A solenoid valve (22) is fixedly installed on the partition, and the two ends of the solenoid valve (22) are respectively connected to the two chambers.

6. The powder recovery device of a metal coating powder spraying apparatus according to claim 4, characterized by: The upper end of the swing pipe (6) is provided with a threaded hole, and a knob bolt (18) is installed in the threaded hole. The screw of the knob bolt (18) is inserted into the shaft tube (19).

7. The powder recovery device of a metal coating powder spraying apparatus according to claim 4, characterized by: The upper surface of the air duct (5) is fixedly installed with a limiting sleeve (20) at the through hole position. The inner ring of the limiting sleeve (20) is provided with an annular groove. The surface of the shaft tube (19) is fixedly provided with an annular rib (21) that engages with the annular groove.

8. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: The air inlet pipe (12) is a telescopic corrugated pipe.

9. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: An opening (10) is provided at the lower end of the front surface of the material box (1). The powder storage drawer (9) is inserted into the material box (1) through the opening (10). A handle is fixedly installed on the front side of the powder storage drawer (9).

10. The powder recovery device of a metal coating powder spraying apparatus according to claim 1, characterized by: A rubber strip (14) is fixedly installed at the bottom of the scraper (7).

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