Chemical paint fading equipment for aircraft component

Abstract

The utility model discloses chemical paint fading equipment for airplane components. The chemical paint fading equipment comprises an equipment outer cover, and a dip coating tank, a curtain coating tank, a reaction tank, a washing and air drying tank, a paint fading agent storage tank and a single-arm gantry manipulator which are arranged in the equipment outer cover, the dipping and coating groove is used for dipping and coating a paint fading agent in the dipping and coating groove; the curtain coating groove is used for curtain coating of a paint fading agent in the curtain coating groove, and a spraying pipe is arranged in the curtain coating groove; a spraying pipe in the curtain coating tank is connected with a liquid outlet of the paint fading agent storage tank through a spraying pump, and a liquid outlet of the spraying pipe is also connected to a waste liquid inlet of the paint fading agent storage tank, so that a circulating spraying system is formed; the reaction tank is used for carrying out paint fading reaction on the aircraft component treated by the dip coating tank or the curtain coating tank; a spraying air-drying pipe is arranged in the washing air-drying tank and is used for washing and water-cutting air-drying the airplane parts subjected to the paint fading reaction; and the single-arm gantry manipulator is used for driving the aircraft parts to move into the grooves for treatment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft maintenance, in particular to a chemical paint removal equipment for aircraft parts. BACKGROUND

[0002] With the vigorous development of civil aviation industry, each airline expands fleet scale, in order to guarantee the safe and stable operation of the flight, the airline needs to carry out periodic inspection and maintenance to each part of the aircraft. The main aircraft parts sent for repair are hub, brake total bearing, heat exchanger and the like, and the maintenance steps include paint removal and paint spraying.

[0003] How to face the increasing repair quantity while ensuring the paint spraying quality and guaranteeing the aircraft to be delivered on time? This brings a severe test to the maintenance manufacturer. In order to better improve the paint spraying quality, the paint removal quality before paint spraying is particularly important. According to the existing maintenance manual and construction specification, the paint removal of the aircraft parts such as hub, heat exchanger and brake total bearing can adopt sandpaper polishing, sand blasting, shot blasting, chemical paint removal and the like. Among them, the chemical paint removal method includes brushing paint removal agent / soaking paint removal agent, reaction paint removal and cleaning process; and the existing chemical paint removal process is usually manually operated. However, the paint removal agent is a strong corrosive and irritating solution, which can cause great harm to human skin, respiratory tract, eyes and other organs, therefore, the chemical paint removal process, especially the brushing paint removal agent process, has great harm to the safety and health of the operator. In addition, the existing chemical paint removal process adopts manual operation, which leads to low production efficiency.

[0004] Therefore, it is particularly urgent and important to design a chemical paint removal equipment according to the requirements of paint removal parts and the requirements of human occupational health protection, so as to realize efficient, safe and reliable paint removal of aircraft parts. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a chemical paint removal equipment for aircraft parts, improving the safety of the chemical paint removal process and improving the production efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0007] A chemical paint removal equipment for aircraft parts, comprising an equipment cover and a dipping coating groove, a shower coating groove, a reaction tank, a flushing and air drying groove, a paint removal agent storage tank and a single-arm gantry robot arranged in the equipment cover.

[0008] The dipping coating groove is used for dipping and coating the paint removal agent in the aircraft parts.

[0009] The spraying tank is internally provided with a spraying pipe; the spraying pipe in the spraying tank is connected with the liquid outlet of the stripping agent storage tank through a spraying pump, and the liquid discharge port thereof is also connected to the waste liquid inlet of the stripping agent storage tank, thereby forming a circulating spraying system.

[0010] The reaction tank is used for the stripping reaction of the aircraft part treated by the dipping tank or the spraying tank.

[0011] The flushing and air-drying tank is internally provided with a spraying and air-drying pipe for flushing and water-cut air-drying of the aircraft part after the stripping reaction.

[0012] The single-arm gantry mechanical hand is used to move the aircraft part to each tank for treatment.

[0013] Preferably, the spraying and air-drying pipe in the flushing and air-drying tank is connected with a high-pressure air blower through a valve, and is additionally connected with a compressed hot air source, so that different air sources can be switched to dry the flushed aircraft part.

[0014] Further, a water storage tank is additionally provided in the equipment cover; the spraying and air-drying pipe in the flushing and air-drying tank is connected with the liquid outlet of the water storage tank through a spraying pump and a valve, and the liquid discharge port thereof is also connected to the waste liquid inlet of the water storage tank; the water storage tank is connected with a clean water pipeline in the equipment cover. In this way, the spraying and air-drying pipe becomes a spraying mechanism and a water-cut air-drying mechanism, and the functions thereof can be switched through the valve.

[0015] Preferably, a solid-liquid separator is arranged between the liquid outlet and the waste liquid inlet of the water storage tank to avoid the paint waste residue from entering the spraying and air-drying pipe in the flushing and air-drying tank. Similarly, a solid-liquid separator is arranged between the liquid outlet and the waste liquid inlet of the stripping agent storage tank to avoid the paint waste residue from entering the spraying pipe in the spraying tank. The solid-liquid separator is a filter screen or a filter basket.

[0016] Preferably, a filter is arranged on the connecting pipeline between the liquid outlet of the stripping agent storage tank and the spraying pipe in the spraying tank; and a filter is arranged on the connecting pipeline between the liquid outlet of the water storage tank and the spraying and air-drying pipe in the flushing and air-drying tank. The filter is a stainless steel core filter.

[0017] Preferably, low liquid level protection devices and manual liquid supplement openings are arranged in the stripping agent storage tank and the water storage tank; when the liquid level is too low, an automatic alarm is prompted to the operator to add liquid into the tank.

[0018] Preferably, a circulating liquid pipeline is arranged in the dipping tank as a liquid agitator; the liquid inlet of the pipeline is located at the bottom of the dipping tank, the liquid outlet thereof is located at the upper portion of the dipping tank, and a pump and a filter are arranged on the pipeline.

[0019] Further, the device also comprises a PLC programmable controller for controlling the single-arm gantry robot, pump and valve in the device according to the process flow and time.

[0020] Preferably, the top of the dip coating tank, shower coating tank, reaction tank and flushing air-drying tank is provided with a tank cover which can be electric or pneumatic and the opening and closing of which is controlled by the PLC programmable controller.

[0021] Preferably, the tank body of the dip coating tank, shower coating tank, reaction tank, flushing air-drying tank, paint stripping agent storage tank and water storage tank is made of stainless steel plate and is assembled by welding. The single-arm gantry robot is also made of stainless steel.

[0022] Preferably, the dip coating tank, shower coating tank and paint stripping agent storage tank are provided with a heating device which is a stainless steel heating rod and the tank body of the dip coating tank, shower coating tank and paint stripping agent storage tank is provided with thermal insulation cotton.

[0023] Preferably, the waste liquid outlet of the dip coating tank, reaction tank, paint stripping agent storage tank and water storage tank is connected to a total sewage pipe and the dip coating tank, reaction tank and paint stripping agent storage tank are respectively connected to a clean water pipeline.

[0024] Further, the top of the device is provided with a set of exhaust pipes which are connected to a total exhaust pipe.

[0025] Compared with the prior art, the device has the following beneficial effects:

[0026] The device realizes the mechanized operation of the chemical paint stripping process of the aircraft parts, avoids the contact of the operator with the paint stripping agent and improves the production safety. Compared with the prior art, the device can perform paint stripping treatment in batches, greatly improves the production efficiency and improves the paint stripping effect from the existing 50-60% to more than 70% under the same paint stripping reaction time. In summary, the device realizes the efficient, safe and reliable chemical paint stripping of the aircraft parts. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic view of the chemical paint stripping device for aircraft parts.

[0028] Fig. 1 is a structural schematic view of the chemical paint stripping device for aircraft parts. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 1 The chemical paint stripping device for aircraft parts of the present application comprises a device cover 1, and a dip coating tank 2, a shower coating tank 3, a reaction tank 4, a flushing and air drying tank 5, a paint stripping agent storage tank 6, a water storage tank 7, and a single-arm gantry mechanical hand arranged in the device cover 1.

[0031] The dip coating tank 2 is used for dipping and coating the paint stripping agent in the aircraft parts, and the tank body is made of SUS304δ2.0mm stainless steel plate and is welded together, the outer part of the tank body is pasted with 10mm thermal cotton, and the top is provided with a pneumatic tank cover; the dip coating tank 2 is provided with a stainless steel heating rod; a circulating liquid flow pipeline 8 with a pump 17 and a filter 16 is arranged outside the dip coating tank, the liquid inlet of the pipeline is located at the bottom of the dip coating tank, and the liquid outlet is located at the upper part of the dip coating tank.

[0032] The shower coating tank 3 is used for shower coating the paint stripping agent in the aircraft parts, and the tank body is made of SUS304δ2.0mm stainless steel plate and is welded together, the outer part of the tank body is pasted with 10mm thermal cotton, and the inside is provided with a stainless steel heating rod, and the top is provided with a pneumatic tank cover; the shower coating tank is provided with a shower pipe 9 arranged on both sides of the tank body, each side is provided with three rows of shower pipes 9, and each row of pipes is provided with 11 nozzles; the shower pipe 9 is connected with the liquid outlet of the paint stripping agent storage tank 6 through a shower pump 17 and a filter 16, and the liquid outlet is also connected to the waste liquid inlet of the paint stripping agent storage tank 6. The paint stripping agent storage tank 6 is used for storing the paint stripping agent and supplying the paint stripping agent to the shower coating tank 3, the tank body is made of SUS304δ1.5mm stainless steel plate and is welded together, the outer part of the tank body is pasted with 10mm thermal cotton, and the inside is provided with a stainless steel heating rod; and a solid-liquid separator 13, which is a filter screen or a filter basket, is arranged between the liquid outlet and the waste liquid inlet of the paint stripping agent storage tank 6. During the operation, the liquid in the paint stripping agent storage tank is extracted by the shower pump, and then is injected into the shower pipe through the filter, and is sprayed out from the nozzles to shower coat the aircraft parts, and the waste liquid flows into the paint stripping agent storage tank to form a circulating shower coating system. The paint stripping agent storage tank 6 is also provided with a low liquid level protection device and a manual liquid supplementing port; when the liquid level is too low, an automatic alarm is given to prompt the operator to add liquid into the tank.

[0033] The reaction tank 4 is made of SUS304δ2.0mm stainless steel plate and is welded together, and the top is provided with a pneumatic tank cover, and is used for the paint stripping reaction of the aircraft parts treated by the dip coating tank or the shower coating tank; during the operation, the aircraft parts are moved to the reaction tank after being dipped and coated with the paint stripping agent to stand for paint stripping reaction.

[0034] The flushing and air-drying tank 5 is used for flushing and air-drying the aircraft parts after the paint removal reaction, and is made of 304 steel plate δ3mm by assembly welding, and is provided with a pneumatic tank cover on the top; the tank is provided with spray and air-drying pipes 10, which are used as both spray mechanism and water cutting and air-drying mechanism. Specifically, the spray and air-drying pipes 10 are arranged on both sides of the tank body, each side is provided with seven rows of spray and air-drying pipes 10, and each row of pipes is provided with 11 nozzles; the spray and air-drying pipes 10 are connected with the liquid outlet of the water storage tank 7 through a spray pump 17, a filter 16 and a valve 18, and the liquid outlet thereof is also connected with the waste liquid inlet of the water storage tank 7; the spray and air-drying pipes 10 are also connected with a high-pressure air blower 11 and a compressed hot air source 12 through corresponding valves 18.

[0035] The tank body of the water storage tank 7 is made of SUS304 δ1.5mm stainless steel plate by assembly welding, and is provided with a solid-liquid separator 13, which is a filter screen or a filter basket, between the liquid outlet and the waste liquid inlet.

[0036] During operation, the liquid in the water storage tank is pumped out by the spray pump, and then is injected into the spray and air-drying pipes through the filter, and is sprayed out of the nozzles to spray and flush the aircraft parts in the flushing and air-drying tank, and then the waste water flows into the water storage tank; after flushing, the high-pressure air blower is switched by the valve to cut water for the aircraft parts; after water cutting, hot air is introduced for drying.

[0037] The single-arm gantry manipulator includes a horizontal moving mechanism, a lifting mechanism and a manipulator, and is located above the dipping and coating tank, the spray coating tank, the reaction tank and the flushing and air-drying tank, and is used for moving the aircraft parts to the tanks for processing during operation.

[0038] The dipping and coating tank 2, the reaction tank 4, the paint remover storage tank 6 and the water storage tank 7 are connected with a clean water pipeline 14; the waste liquid outlets of the dipping and coating tank 2, the reaction tank 4, the paint remover storage tank 6 and the water storage tank 7 are connected with a total sewage pipeline 15.

[0039] The equipment of the embodiment is also provided with a PLC programmable controller, which controls the operation of the single-arm gantry manipulator, the pump, the valve, the pneumatic tank cover, the heating rod and the like in the equipment. Moreover, a set of exhaust pipeline is arranged on the top of the equipment and is connected with a total exhaust pipeline.

[0040] The chemical paint removal of the aircraft parts can be realized by the utility model, and a plurality of aircraft parts can be processed simultaneously in batches; the utility model is suitable for chemical paint removal of various aircraft parts, such as hubs, brake total bearings, heat exchangers and the like; the steps of the chemical paint removal include: ① moving the aircraft parts to the dipping and coating tank to dip and coat the paint remover, or moving the aircraft parts to the spray coating tank to spray the paint remover; ② then sending the aircraft parts to the reaction tank for paint removal reaction, so that the paint layer is loose and is peeled off from the aircraft parts; ③ after the reaction, moving the aircraft parts to the flushing and air-drying tank, flushing with water to remove the peeled paint layer, and finally using compressed air to remove all the liquid on the surface of the aircraft parts and in the bearing hole thereof.

Claims

1. A chemical paint stripping apparatus for aircraft components, characterised in that, The device comprises a device cover, a dip coating tank, a shower coating tank, a reaction tank, a flushing and air drying tank, a paint stripping agent storage tank, and a single-arm gantry robot. The dip coating tank is used for dip coating of the aircraft parts. The shower coating tank is used for shower coating of the aircraft parts, and a spray pipe is arranged in the shower coating tank. The reaction tank is used for paint stripping reaction of the aircraft parts treated in the dip coating tank or the shower coating tank. The flushing and air drying tank is provided with a spray and air drying pipe for flushing and air drying of the aircraft parts after the paint stripping reaction. The single-arm gantry robot is used to move the aircraft parts to the tanks for treatment.

2. The chemical paint removal apparatus for aircraft components of claim 1, wherein, A water storage tank is additionally arranged in the device cover.

3. The chemical paint removal apparatus for aircraft components of claim 2, wherein, The spray and air drying pipe in the flushing and air drying tank is connected to the water outlet of the water storage tank through a spray pump and a valve, and the liquid outlet of the spray and air drying pipe is also connected to the waste liquid inlet of the water storage tank.

4. The chemical paint removal apparatus for aircraft components of claim 3, wherein the at least one of the plurality of rollers is a rotating roller. The water storage tank is arranged in the device cover and connected to a clean water pipeline.

5. The chemical paint stripping apparatus for aircraft components of claim 4, wherein, The spray and air drying pipe in the flushing and air drying tank is connected to a high-pressure fan through a valve, and / or connected to a compressed hot air source. A solid-liquid separator is arranged between the water outlet and the waste liquid inlet of the water storage tank, and also arranged between the water outlet and the waste liquid inlet of the paint stripping agent storage tank.

6. The chemical paint stripping apparatus for aircraft components of claim 5, wherein, The solid-liquid separator is a filter screen or a filter basket.

7. The chemical paint removal apparatus for aircraft components of claim 6, wherein, A stainless steel core filter is arranged on the connecting pipeline between the water outlet of the paint stripping agent storage tank and the spray pipe in the shower coating tank. A stainless steel core filter is arranged on the connecting pipeline between the water outlet of the water storage tank and the spray and air drying pipe in the flushing and air drying tank.

8. The chemical paint removal apparatus for aircraft components of claim 7, wherein, A circulating liquid pipeline is arranged in the dip coating tank as a liquid agitator.

9. The chemical paint stripping apparatus for aircraft components of claim 8, wherein, A PLC programmable controller is arranged to control the single-arm gantry robot, pumps, and valves in the device according to the process flow and time.

10. The chemical paint stripping apparatus for aircraft components of claim 9, wherein, Heating devices are arranged in the dip coating tank, the shower coating tank, the paint stripping agent storage tank, and the water storage tank, and heat insulation cotton is arranged outside the tanks. Electric or pneumatic tank covers are arranged on the top of the dip coating tank, the shower coating tank, the reaction tank, and the flushing and air drying tank. The waste liquid outlets of the dip coating tank, the reaction tank, the paint stripping agent storage tank, and the water storage tank are connected to a total waste pipe. The dip coating tank, the reaction tank, and the paint stripping agent storage tank are connected to a clean water pipeline. A set of exhaust pipelines are arranged on the top of the device and connected to a total exhaust pipeline.

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