A new metal part anticorrosion treatment equipment

Abstract

This invention proposes a novel anti-corrosion treatment device for metal parts, comprising a composite processing integration unit, a hot air tunnel chassis, and a material conveying assembly. The composite processing integration unit includes a chassis base and a chassis on top of the chassis base. An antistatic component is located within the chassis cavity on the material inlet side. A first robotic arm is located within the chassis cavity, and an air plasma spray gun is mounted on the first robotic arm. A second robotic arm is located within the chassis cavity, and a passivating agent nozzle is mounted on the second robotic arm. This invention removes static electricity from the workpiece surface using the antistatic component. Under the operation of the air plasma chassis, the air plasma spray gun uses air plasma to bombard the surface of the metal part, removing the oxide layer and achieving rapid passivation. The cleaning process is fast, effective, and stable. Furthermore, the process does not use chemical solvents, making it environmentally friendly and pollution-free. This invention generates and discharges no wastewater throughout the entire device. The device is compact, occupies little space, and is easy to move.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, and in particular to a novel anti-corrosion treatment device for metal parts. Background Technology

[0002] Typically, SUS304 stainless steel achieves a neutral salt spray resistance of 48 hours. To improve its corrosion resistance, anti-corrosion treatment is necessary. Current anti-corrosion treatments for metal parts include painting, electroplating, vacuum plating, and passivation. However, these surface treatments all require large amounts of water for pretreatment, and water is often needed in the production process. A significant amount of water and energy is used for auxiliary processes; furthermore, current production processes are lengthy, involve large equipment, and require multiple operators. While automated equipment is gradually being adopted, its cost is very high. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a novel anti-corrosion treatment device for metal parts, which can more accurately solve the problems described above.

[0004] This invention is achieved through the following technical solution:

[0005] This invention proposes a novel anti-corrosion treatment equipment for metal parts, including a composite processing integration, a hot air tunnel chassis, and a material conveying component. The composite processing integration includes a chassis base and a chassis on top of the chassis base. The bottom of the chassis is provided with a material inlet and outlet, and a material conveying component for guiding materials is arranged transversely along the material inlet and outlet of the chassis. The material conveying component includes a material conveying frame and a material conveying belt arranged on the material conveying frame. An anti-static component is provided in the inner cavity of the chassis on the side of the material inlet.

[0006] The inner cavity of the chassis and the inner side of the static elimination component are provided with a first robotic arm, and an air plasma spray gun is provided on the first robotic arm. An air plasma chassis connected to the air plasma spray gun is provided inside the chassis base.

[0007] The inner cavity of the machine is equipped with a second robotic arm on the side near the material outlet, and the second robotic arm is equipped with a passivating agent nozzle, which is connected to the passivation and sealing agent supply system.

[0008] The material conveying assembly is provided with a hot air tunnel housing on the outside of the material outlet, which is close to the machine box. The hot air tunnel housing is provided with a preheating zone, a reaction zone and a drying zone. Each of the preheating zone, reaction zone and drying zone is provided with a hot air heating assembly for independent heating and a temperature detector for independent temperature detection. An infrared heating tube is provided inside the reaction zone.

[0009] The material conveying assembly is provided with a workpiece auxiliary fixing assembly located in the inner cavity of the machine box. The material conveying assembly has two vacuum adsorption slots on the plate surface located in the inner cavity of the machine box. The workpiece auxiliary fixing assembly includes a negative pressure bottom cover that is fixed to the vacuum adsorption slot. The negative pressure bottom cover is connected to the air pump equipment through an air pipe. The material conveying belt is provided with perforations.

[0010] Furthermore, the static elimination component consists of an array of ion guns, with the nozzles of the ion guns pointing vertically downwards.

[0011] Furthermore, the first robotic arm is equipped with an oxide layer detection feedback sub-component, which includes an integrated laser interferometer fixed on the first robotic arm, and the detection direction of the integrated laser interferometer is consistent with the nozzle direction of the air plasma spray gun.

[0012] Furthermore, the passivating agent nozzle is composed of an array of 64 independently controlled piezoelectric spray valves, each with a spray area of ​​1mm × 1mm.

[0013] Furthermore, the inner cavity of the chassis and in front of the air plasma spray gun and passivating agent nozzle station are equipped with scanning and recognition modules, which include a multispectral scanner, a laser profilometer and a high-resolution industrial camera.

[0014] Furthermore, the internal temperature of the preheating zone is 80°C, the internal temperature of the reaction zone is 120°C, and the internal temperature of the drying zone is 60°C, with a temperature difference of ±2°C between the internal temperatures of the preheating zone, the reaction zone, and the drying zone.

[0015] Furthermore, the material conveying frame has cover plate grooves on both sides of the slot opening of the vacuum adsorption tank. Each cover plate is slidably connected in the cover plate grooves on both sides of the slot opening of the vacuum adsorption tank. Connecting seats are provided at the bottom of the adjacent ends of the two cover plates. Adjustment screws connected to the two connecting seats are provided inside the negative pressure bottom cover. One end of the adjustment screw is connected to an adjustment motor.

[0016] Furthermore, the adjusting screw is provided with two threaded rod sections, which are respectively engaged with the connecting seats provided on the two cover plates, and the thread rotation directions of the two threaded rod sections are arranged in opposite directions.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention removes static electricity from the workpiece surface using an antistatic component. Under the operation of the air plasma chamber, the air plasma spray gun uses air plasma to bombard the surface of the metal part, removing the oxide layer on its surface and achieving a state that can be quickly passivated. The cleaning process is fast, the effect is stable, and the process does not use chemical solvents, making it environmentally friendly and pollution-free.

[0019] 2. Under the operation of the passivation sealing agent supply system, the present invention enables the metal parts that have been cleaned by air plasma to be quickly sprayed with passivating agent through the passivating agent nozzle to passivate the surface. The spraying process is continuous and rapid, and the passivation effect of the metal surface is better. According to the scanning and identification module, defective products are screened and spraying trajectory is generated, reducing the waste of passivating agent.

[0020] 3. When a metal workpiece enters the cleaning or spraying station, the present invention uses an air pump to draw air, creating a negative pressure inside the negative pressure cover. The conveyor belt is in close contact with the surface of the conveyor frame, and the conveyor belt has perforations to adsorb the bottom of the metal workpiece, keeping it fixed during surface cleaning or passivation agent spraying. The area of ​​the adsorption port is adjustable to ensure the adsorption force on the workpiece.

[0021] 4. This invention avoids stress cracking of metal parts due to sudden temperature changes by using multi-segment temperature control, while gradually accelerating the passivation reaction and reducing the overall curing time.

[0022] 5. The present invention does not generate or discharge wastewater in the entire device. The device is compact, occupies a small area, and is easy to move. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the structure of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the material conveying component and the workpiece auxiliary fixing component in this invention;

[0026] Figure 4 This is a cross-sectional view of the workpiece auxiliary fixing component in this invention;

[0027] Figure 5 for Figure 4 Sectional view at point AA.

[0028] In the diagram: 1. Composite processing integration; 101. Chassis; 102. Chassis base; 103. Static elimination component; 104. First robotic arm; 105. Air plasma spray gun; 106. Second robotic arm; 107. Passivating agent nozzle; 2. Hot air tunnel chassis; 201. Preheating zone; 202. Reaction zone; 2021. Infrared heating tube; 203. Drying zone; 204. Hot air heating component; 205. Temperature. 3. Detector; 4. Material conveying assembly; 5. Material conveying frame; 6. Vacuum adsorption tank; 7. Cover plate slide; 8. Material conveying belt; 9. Hole; 10. Workpiece auxiliary fixing assembly; 11. Negative pressure bottom cover; 12. Air pipe; 13. Cover plate; 14. Connecting seat; 15. Adjusting screw; 26. Adjusting motor; 17. Air plasma chamber; 18. Passivation and sealing agent supply system. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] A novel anti-corrosion treatment equipment for metal parts includes a composite processing integration 1, a hot air tunnel chassis 2, and a material conveying component 3. The composite processing integration 1 includes a chassis base 102 and a chassis 101 on top of the chassis base 102. The bottom of the chassis 101 is provided with a material inlet and outlet, and a material conveying component 3 for guiding materials is arranged transversely along the material inlet and outlet of the chassis 101. The material conveying component 3 includes a material conveying frame 301 and a material conveying belt 302 arranged on the material conveying frame 301. An antistatic component 103 is provided in the inner cavity of the chassis 101 and on the side of the material inlet. The antistatic component 103 is an ion gun array composed of several ion guns, and the nozzle direction of the ion guns is vertically downward. High-voltage ionized air is used to generate positive and negative ions to neutralize the static electricity on the surface of the metal parts and blow away the dust at the same time.

[0032] A first robotic arm 104 is located inside the housing 101 and on the inner side of the static eliminator 103. An air plasma spray gun 105 is mounted on the first robotic arm 104. An air plasma housing 5, connected to the air plasma spray gun 105, is located inside the housing base 102. Compressed air is used as the working gas, and plasma is excited by a high-frequency, high-voltage electric field. The plasma bombardment removes the surface oxide layer, enhancing the surface activity of the metal parts. The first robotic arm 104 is a six-axis robotic arm that can automatically adjust the spray angle and path according to the shape of the metal parts to ensure uniform cleaning.

[0033] The first robotic arm 104 is equipped with an oxide layer detection feedback sub-component, which includes an integrated laser interferometer fixed on the first robotic arm 104. The detection direction of the integrated laser interferometer is consistent with the nozzle direction of the air plasma spray gun 105. The integrated laser interferometer detects the surface roughness of the metal part in real time and terminates the cleaning when the oxide layer is completely removed.

[0034] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: After the static electricity on the surface of the workpiece is removed by the static elimination component 103, the air plasma spray gun 105 uses air plasma to bombard the surface of the metal part under the operation of the air plasma chamber 5, removing the oxide layer on its surface, achieving a state that can be quickly passivated. The cleaning process is fast, the effect is stable, and the process does not use chemical solvents, making it environmentally friendly and pollution-free.

[0035] Example 2

[0036] A second robotic arm 106 is located on the side of the inner cavity of the casing 101 near the material outlet, and the second robotic arm 106 is equipped with a passivating agent nozzle 107, which is connected to the passivation and sealing agent supply system 6. Under the operation of the passivation and sealing agent supply system 6, the metal parts, after being cleaned by air plasma, are quickly sprayed with passivating agent through the passivating agent nozzle 107, thus passivating their surface. The second robotic arm 106 is a six-axis robotic arm, which can automatically adjust the spraying angle and path of the passivating agent according to the shape of the metal parts to ensure a uniform passivating agent coating.

[0037] The passivator nozzle 107 consists of an array of 64 independently controlled piezoelectric spray valves, each with a spray area of ​​1mm×1mm, enabling pixel-by-pixel spraying control and ensuring that the passivator film thickness uniformity is controlled within ±0.5μm.

[0038] The inner cavity of the chassis 101 and in front of the workstations of the air plasma spray gun 105 and the passivator nozzle 107 are equipped with scanning and recognition modules. The scanning and recognition modules include a multispectral scanner, a laser profilometer, and a high-resolution industrial camera. The multispectral scanner, combined with the laser profilometer and the high-resolution industrial camera, simultaneously collects the geometric data and surface reflection spectrum of the metal parts. The surface reflection spectrum can distinguish different metal materials. Based on AI model training, it can identify defects such as surface oil stains and oxide layer residues in real time, triggering alarms or automatically skipping defective products. It generates a spraying trajectory based on the scanned structure to reduce passivator waste.

[0039] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Under the operation of the passivation sealing agent supply system 6, the present invention enables the metal parts that have been cleaned by air plasma to be quickly sprayed with passivating agent through the passivating agent nozzle 107 to passivate their surface. The spraying process is continuous and rapid, and the passivation effect of the metal surface is better. According to the scanning and identification module, defective products are screened and spraying trajectories are generated, reducing the waste of passivating agent.

[0040] Example 3

[0041] To prevent workpiece displacement and inaccurate processing during air plasma cleaning or passivation agent spraying of metal parts, a workpiece auxiliary fixing component 4 is provided in the material conveying assembly 3, located inside the housing 101. Two vacuum adsorption tanks 3011 are formed on the plate surface of the material conveying assembly 3 within the housing 101. The workpiece auxiliary fixing component 4 includes a negative pressure bottom cover 401 fixed to the vacuum adsorption tanks 3011. The negative pressure bottom cover 401 is connected to an air pump via an air pipe 402. When the metal workpiece enters the cleaning or spraying station, the air pump is controlled to create a negative pressure inside the negative pressure bottom cover 401. The conveyor belt 302 adheres tightly to the plate surface of the material conveying frame 301. Simultaneously, the conveyor belt 302 has perforations 3021, which adsorb the bottom of the metal workpiece, thus keeping it fixed during surface cleaning or passivation agent spraying.

[0042] The conveyor belt 302 has a perforation 3021. On the plate surface of the conveyor frame 301, corresponding to the two sides of the opening of the vacuum adsorption tank 3011, there are cover plate grooves 3012. A cover plate 403 is slidably connected in each of the cover plate grooves 3012 on both sides of the opening of the vacuum adsorption tank 3011. The opening size of the vacuum adsorption tank 3011 can be changed by sliding the position of the two cover plates 403. A connecting seat 4031 is provided at the bottom of the close ends of the two cover plates 403. The negative pressure bottom cover 401 is provided with an adjusting screw 404 connected to the two connecting seats 4031. One end of the adjusting screw 404 is connected to an adjusting motor 405. The adjusting screw 404 is provided with two threaded rods. The two threaded rods are respectively engaged with the connecting seats 4031 provided on the two cover plates 403, and the thread rotation directions of the two threaded rods are set in opposite directions. Driven by the adjustment motor 405, the two threaded rods on the adjustment motor 405 are driven to engage with the connecting seats 4031 of the two cover plates 403 respectively, thereby pulling the distance between the two cover plates 403 and adjusting the opening size of the vacuum adsorption tank 3011.

[0043] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: When a metal workpiece enters the cleaning or spraying station, the present invention controls the air pump to draw air, so that a negative pressure is formed inside the negative pressure cover 401, and the conveyor belt 302 is closely attached to the plate surface of the conveyor frame 301. At the same time, the conveyor belt 302 has a perforation 3021, which adsorbs the bottom of the metal workpiece, so that the metal workpiece is fixed during the surface cleaning or spraying of passivating agent.

[0044] Furthermore, the adjustment motor 405 drives the two threaded rods on the adjustment motor 405 to engage with the connecting seats 4031 of the two cover plates 403 respectively, thereby pulling the distance between the two cover plates 403 and adjusting the opening size of the vacuum adsorption tank 3011 to match the size of the workpiece, effectively improving the adsorption force on the workpiece.

[0045] Example 4

[0046] A hot air tunnel housing 2 is located on the material outlet of the material conveying component 3, which is closely attached to the outer side of the housing 101. The hot air tunnel housing 2 has a preheating zone 201, a reaction zone 202, and a drying zone 203. Each of the preheating zone 201, reaction zone 202, and drying zone 203 is equipped with an independent hot air heating component 204 and an independent temperature detector 205. The internal temperature of the preheating zone 201 is 80℃, the internal temperature of the reaction zone 202 is 120℃, and the internal temperature of the drying zone 203 is 60℃. The temperature difference between the internal chambers of the preheating zone 201, reaction zone 202, and drying zone 203 is ±2℃. This multi-segment temperature control prevents stress cracking of metal parts due to sudden temperature changes, while gradually accelerating the passivation reaction and reducing the overall curing time. An infrared heating tube 2021 is installed inside the reaction zone 202 to provide supplementary heating for metal parts with complex shapes, shortening the curing time.

[0047] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: the present invention avoids stress cracking of metal parts due to sudden temperature changes by multi-segment temperature control, and at the same time gradually accelerates the passivation reaction and reduces the overall curing time.

[0048] Of course, the present invention may have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention.

Claims

1. A novel anti-corrosion treatment equipment for metal parts, comprising a composite processing integration (1), a hot air tunnel enclosure (2), and a material conveying assembly (3), characterized in that, The composite processing integration (1) includes a chassis base (102) and a chassis (101) on top of the chassis base (102). The bottom of the chassis (101) is provided with a material inlet and outlet, and a material conveying component (3) for guiding materials is arranged transversely along the material inlet and outlet of the chassis (101). The material conveying component (3) includes a material conveying frame (301) and a material conveying belt (302) arranged on the material conveying frame (301). An antistatic component (103) is provided in the inner cavity of the chassis (101) and on the side of the material inlet. The inner cavity of the chassis (101) and the inner side of the static elimination component (103) are provided with a first robotic arm (104), and an air plasma spray gun (105) is provided on the first robotic arm (104). An air plasma chassis (5) connected to the air plasma spray gun (105) is provided inside the chassis base (102). The inner cavity of the machine (101) is provided with a second robotic arm (106) on the side near the material outlet, and the second robotic arm (106) is provided with a passivating agent nozzle (107), which is connected to the passivating and sealing agent supply system (6). The material conveying component (3) is provided with a hot air tunnel casing (2) on the outside of the material outlet of the casing (101). The hot air tunnel casing (2) is provided with a preheating zone (201), a reaction zone (202) and a drying zone (203). The preheating zone (201), the reaction zone (202) and the drying zone (203) are each provided with a hot air heating component (204) for independent heating and a temperature detector (205) for independent temperature detection. An infrared heating tube (2021) is provided inside the reaction zone (202). The material conveying assembly (3) is provided with a workpiece auxiliary fixing assembly (4) located in the inner cavity of the chassis (101). The material conveying assembly (3) has two vacuum adsorption grooves (3011) on the plate surface located in the inner cavity of the chassis (101). The workpiece auxiliary fixing assembly (4) includes a negative pressure bottom cover (401) that is fixed to the vacuum adsorption groove (3011). The negative pressure bottom cover (401) is connected to the air pump equipment through an air pipe (402). The material conveying belt (302) is provided with perforations (3021).

2. The novel metal parts anti-corrosion treatment equipment according to claim 1, characterized in that, The static eliminator (103) is an array of ion guns consisting of several ion guns, with the nozzles of the ion guns pointing vertically downwards.

3. The novel metal parts anti-corrosion treatment equipment according to claim 1, characterized in that, The first robotic arm (104) is provided with an oxide layer detection feedback sub-component, which includes an integrated laser interferometer fixed on the first robotic arm (104), and the detection direction of the integrated laser interferometer is consistent with the nozzle direction of the air plasma spray gun (105).

4. The novel metal parts anti-corrosion treatment equipment according to claim 1, characterized in that, The passivating agent nozzle (107) consists of an array of 64 independently controlled piezoelectric spray valves, each with a spray area of ​​1 mm × 1 mm.

5. The novel metal parts anti-corrosion treatment equipment according to claim 1, characterized in that, The inner cavity of the chassis (101) and in front of the air plasma spray gun (105) and passivating agent nozzle (107) are equipped with scanning and recognition modules, which include a multispectral scanner, a laser profilometer and a high-resolution industrial camera.

6. The novel metal parts anti-corrosion treatment equipment according to claim 1, characterized in that, The internal temperature of the preheating zone (201) is 80℃, the internal temperature of the reaction zone (202) is 120℃, and the internal temperature of the drying zone (203) is 60℃. The internal temperature difference between the preheating zone (201), the reaction zone (202), and the drying zone (203) is ±2℃.

7. A novel anti-corrosion treatment device for metal parts according to claim 1, characterized in that, On the plate surface of the material conveying frame (301) and on both sides of the slot of the vacuum adsorption tank (3011), there are cover plate sliding grooves (3012). Each cover plate (403) is slidably connected in the cover plate sliding grooves (3012) on both sides of the slot of the vacuum adsorption tank (3011). A connecting seat (4031) is provided at the bottom of the two close ends of the two cover plates (403). The negative pressure bottom cover (401) is provided with an adjusting screw (404) connected to the two connecting seats (4031). One end of the adjusting screw (404) is connected to an adjusting motor (405).

8. A novel anti-corrosion treatment device for metal parts according to claim 7, characterized in that, The adjusting screw (404) is provided with two threaded rod sections. The two threaded rod sections are respectively engaged with the connecting seats (4031) provided on the two cover plates (403), and the thread rotation directions of the two threaded rod sections are set in opposite directions.

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