Oil cylinder paint spraying coating system and method

Abstract

The invention belongs to the technical field of coating equipment, and discloses an oil cylinder paint spraying coating system and method. Through cooperative work of the suspension conveyor, the semi-automatic piece loading and unloading special machine, the robot automatic primer spraying equipment and the like, automatic production of paint spraying and coating of the oil cylinder is achieved, and the production efficiency and the quality stability are improved. And by adopting an automatic detection and control technology, the labor intensity of workers is reduced, the working efficiency is improved, and the system is safe and accurate. The coating production line system has the advantages that the compatibility is good, collinear production of various cylinder bodies can be realized, the system runs at a beat, and the automation degree is high; and the device has the characteristics of convenience in use, convenience in control, energy conservation, consumption reduction, economy, environment friendliness and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of coating equipment, and in particular to an oil cylinder spray coating system and method. Background Art

[0002] Painting is a crucial step in the production of hydraulic cylinders, directly impacting their appearance, quality, and service life. Traditional hydraulic cylinder painting lines typically employ manual labor combined with crane-operated workpiece hoisting. Painting is typically done manually, resulting in low efficiency, inconsistent quality, and a poor working environment for workers, making them unable to meet the demands of modern industrial production.

[0003] Therefore, it is of great practical significance to develop an efficient and stable oil cylinder spray painting production line. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a cylinder painting system and method.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A cylinder painting system capable of painting a cylinder workpiece to be sprayed, comprising a hanging conveyor, a semi-automatic loading machine, a surface grinding and cleaning room, a pretreatment section, automatic and manual water blowing rooms, a moisture drying room, a first forced cooling room, an upper shielding part, a robot-automatic primer spraying room, a manual primer touch-up room, a primer leveling room, a primer drying room, a second forced cooling room, a robot-automatic topcoat spraying room, a manual topcoat touch-up room, a topcoat leveling room, a topcoat drying room, a third forced cooling room, a semi-automatic unloading machine, a paint mixing room, and tracks;

[0007] The semi-automatic loading machine, surface grinding and cleaning room, pretreatment section, automatic and manual water blowing room, moisture drying room, first strong cooling room, upper shielding part, robot automatic primer spraying room, manual primer filling room, primer leveling room, primer drying room, second strong cooling room, robot automatic topcoat spraying room, manual topcoat filling room, topcoat leveling room, topcoat drying room, third strong cooling room, and semi-automatic unloading machine are all connected in sequence through rails, and the hanging conveyor can transport the cylinder workpiece to be sprayed to the above sections in sequence through the rails;

[0008] The shape and size of the upper shielding member match some of the mounting holes on the oil cylinder and can cover the mounting holes;

[0009] The semi-automatic loading machine can load the workpiece onto the hanging conveyor, the surface grinding and cleaning room can grind the workpiece surface, the pretreatment section can pre-treat the workpiece, the automatic and manual water blowing room can blow water on the workpiece, the moisture drying room can dry the workpiece, the first strong cooling room can strong cool the workpiece, the robot automatic primer spraying room can spray the primer on the workpiece, the manual primer repair room can spray and inspect the primer defects on the workpiece, and the primer leveling room can perform primer leveling. The paint leveling room can perform leveling operations, the primer drying room can dry the primer, the second forced cooling room can perform forced cooling operations on the workpiece, the robot automatic spray paint room can spray the workpiece topcoat, the manual touch-up paint room can spray and inspect the workpiece topcoat defects, the topcoat leveling room can perform leveling operations on the topcoat, the topcoat drying room can dry the topcoat, the third forced cooling room can perform forced cooling operations on the workpiece, the semi-automatic unloading machine can disassemble the workpiece and remove it from the hanging conveyor, and the paint mixing room can mix the paint required for system production.

[0010] Furthermore, the system includes an electronic control system, which is connected to the hanging conveyor, semi-automatic loading machine, surface grinding and cleaning room, pretreatment section, automatic and manual water blowing room, moisture drying room, first strong cooling room, upper shielding part, robot automatic primer spraying room, manual primer filling room, primer leveling room, primer drying room, second strong cooling room, robot automatic topcoat spraying room, manual topcoat filling room, topcoat leveling room, topcoat drying room, third strong cooling room, semi-automatic unloading machine, and paint mixing room. The electronic control system can control the operation of the entire production line. The electronic control system can control the action sequence and operation parameters of the hanging conveyor, semi-automatic loading and unloading machine, robot automatic primer spraying, manual primer filling, robot automatic topcoat spraying, and manual topcoat filling equipment.

[0011] Furthermore, the suspension conveyor is movably connected to the track through the painting assembly line chain, and the suspension conveyor can drive the painting assembly line chain to move along the track. Multiple primary slings are arranged at intervals on the painting assembly line chain, and the suspension conveyor adopts a rhythmic operation, and the suspension conveyor can drive the painting assembly line chain to move along the track.

[0012] Furthermore, the pre-treatment section includes a first exhaust system, a first hot water washing spray system, a pre-degreasing spray system, a degreasing spray system, a first water washing spray system, a second water washing spray system, a first pure water direct injection system, a phosphating spray system, a third water washing spray system, a second pure water direct injection system, a second hot water washing spray system, a high-pressure fan automatic water blowing system and a second exhaust system, and the manual water blowing room includes a compressed air manual water blowing system, a first exhaust system, a first hot water washing spray system, a pre-degreasing spray system, a degreasing spray system, a first water washing spray system, a second water washing spray system, a first pure water direct injection system, a phosphating spray system, a third water washing spray system, a second pure water direct injection system, a second hot water washing spray system, a high-pressure fan automatic water blowing system, a second exhaust system and a compressed air manual water blowing system, which are connected in sequence, and the pre-treatment section can comprehensively clean and treat the oil cylinder.

[0013] Furthermore, the robot automatic primer spraying room and the robot automatic topcoat spraying room both include an exhaust gas exhaust duct, a circulating filter bellows, a circulating fan, a pressure equalizing chamber, a ceiling cotton, an automatic workpiece rotation device, an automatic paint spraying room body, a paint spraying robot and a paint mist capture system. The automatic paint spraying room body is arranged in a vertical direction, the pressure equalizing chamber is closely connected and arranged at the upper part of the automatic paint spraying room body, the ceiling cotton is connected and arranged at the bottom of the pressure equalizing chamber, the paint mist capture system is closely connected and arranged at the bottom of the automatic paint spraying room body, the input end of the circulating filter bellows is connected to the output end of the circulating fan through a pipeline, the output end of the circulating filter bellows is closely connected to the pressure equalizing chamber, the input end of the circulating fan is closely connected to the paint mist capture system, and the spray capture system can capture the smoke falling after painting;

[0014] The exhaust gas discharge duct is closely connected to the pipes between the circulating filter bellows and the circulating fan;

[0015] The painting robot and the workpiece automatic rotation device are both arranged in the automatic painting room body. The workpiece transported by the hanging conveyor can be detachably connected to the workpiece automatic rotation device, and the workpiece automatic rotation device can drive the workpiece to rotate so that it can be painted on multiple sides; the painting robot can perform painting operations on the workpiece on the workpiece automatic rotation device.

[0016] Furthermore, the manual primer repair room and the manual topcoat repair room both include an exhaust gas exhaust duct, an air supply air conditioning unit (1002), an exhaust gas exhaust fan, a pressure equalizing chamber, a ceiling cotton, an automatic workpiece rotation device, a manual paint repair room body, a manual paint repair lifting platform and a paint mist capture system. The manual paint repair room body is arranged in a vertical direction, the pressure equalizing chamber is closely connected and arranged at the upper part of the manual paint repair room body, the ceiling cotton is connected and arranged at the bottom of the pressure equalizing chamber, the paint mist capture system is closely connected and arranged at the bottom of the manual paint repair room body, the input end of the air supply air conditioning unit is connected to the output end of the exhaust gas exhaust fan through a pipeline, the output end of the air supply air conditioning unit is closely connected to the pressure equalizing chamber, the input end of the exhaust gas exhaust fan is closely connected to the paint mist capture system, and the paint mist capture system can capture smoke falling after painting;

[0017] The exhaust gas discharge duct is closely connected with the exhaust gas discharge fan;

[0018] The manual paint touch-up lifting platform and the workpiece automatic rotating device are both arranged in the main body of the manual paint touch-up room. The workpiece transported by the hanging conveyor can be detachably connected to the workpiece automatic rotating device, and the workpiece automatic rotating device can drive the workpiece to rotate; the manual paint touch-up lifting platform can accommodate paint touch-up workers, and the manual paint touch-up lifting platform can drive the paint touch-up workers to move up and down, and the paint touch-up workers can perform paint touch-up operations on the workpiece on the workpiece automatic rotating device.

[0019] The manual paint touch-up platform can lift the workers to the work point, the automatic workpiece rotation device can rotate the workpiece for multi-sided spraying, the paint mist capture system can capture the spray falling after painting, the exhaust gas exhaust duct, the exhaust gas exhaust fan and the paint mist capture system are connected in sequence, so that the spray captured by the paint mist capture system is discharged into the manual paint touch-up room body, the air supply air conditioning unit, the equalizing pressure chamber and the ceiling cotton are connected in sequence and arranged on the upper part of the manual paint touch-up room body.

[0020] Alternatively, the robot automatic primer spraying room, manual primer spraying room, robot automatic topcoat spraying room and manual topcoat spraying room are all set as dry spraying rooms, the air supply area of ​​the robot automatic primer spraying room and the robot automatic topcoat spraying room has a laminar flow wind speed of about 0.3-0.4m / s, and the air supply area of ​​the manual primer spraying room and the manual topcoat spraying room has a laminar flow wind speed of about 0.4-0.6m / s, the paint mist capture system is installed in the paint room pit, the automatic spraying room and the manual spraying room are separated, filtered separately and two-stage filtration is adopted, the front stage adopts a paper shell filter, and the rear stage adopts a special baffled paint mist capture box, each spraying room is equipped with a centrifugal explosion-proof fan for exhaust, and the exhaust gas is transported to the exhaust gas treatment device through the exhaust duct and discharged after treatment to meet the standards.

[0021] Furthermore, the moisture drying room, primer drying room and topcoat drying room all include an exhaust gas emission system, a heating chamber, a drying chamber body, a temperature control system and an air supply duct. The drying chamber body is arranged in a horizontal direction, and the exhaust gas emission system and the heating chamber are both arranged on the upper part of the drying chamber body and are connected through the temperature control system and the air supply duct, and adopt a hot air circulation method of downward air supply and upper return air.

[0022] Alternatively, the moisture drying room, primer drying room and topcoat drying room are all equipped with PID digital automatic temperature controllers and temperature sensors, which adjust the temperature of the drying furnace by controlling the firepower of the burner, and control the start and stop of the burner according to the temperature. The temperature range of the drying furnace is 80-100°C, and the moisture drying furnace, primer drying furnace and topcoat drying furnace can adopt a parallel integrated structure.

[0023] Furthermore, the first forced cooling room and the second forced cooling room both include an exhaust fan, a forced cooling chamber body and a negative pressure fan. The forced cooling chamber body is arranged in a horizontal direction, the exhaust fan is arranged at the upper part of the forced cooling chamber body, and the negative pressure fan is arranged at the lower part of the forced cooling chamber body. The bottom negative pressure fan blows air upward, and the overall structure adopts an integrated air supply and exhaust air conditioning unit structure.

[0024] Furthermore, the third forced cooling room includes an integrated air-conditioning unit for supply and exhaust, an air supply duct, a forced cooling chamber body, a forced cooling nozzle and a return air duct. The forced cooling chamber body is arranged in a horizontal direction, the integrated air-conditioning unit for supply and exhaust is installed on the top of the forced cooling chamber body, and the forced cooling nozzle is installed in the forced cooling chamber body. The forced cooling nozzle is connected to the integrated air-conditioning unit for supply and exhaust through the air supply duct and the return air duct to form a forced cooling air circuit.

[0025] More specifically, the following steps are included:

[0026] S1. Workers use the paint mixing system in the paint mixing room to produce the required paint and set it up in the robot automatic primer spraying room, manual primer touch-up room, robot automatic topcoat spraying room, and manual topcoat touch-up room. Then they start the electronic control system; the hanging conveyor drives the painting line chain along the track, and several primary spreaders are fixed on the painting line chain. The secondary spreaders are manually assembled on the semi-automatic loading machine.

[0027] S2. The semi-automatic loading machine loads the workpiece onto the hanging conveyor, which then transports the workpiece to the surface grinding and cleaning room for surface grinding. After grinding, the hanging conveyor then transports the workpiece to the pre-treatment section for pre-treatment.

[0028] S3, the hanging conveyor transports the workpiece processed in step S2 to the automatic and manual water blowing room to blow water on the workpiece to absorb impurities, and then passes through the water drying room to dry the workpiece to make the workpiece surface smooth. After the treatment is completed, the hanging conveyor transports the workpiece to the first strong cooling room to perform a strong cooling operation on the workpiece, and then the hanging conveyor transports the workpiece to the robot automatic primer spraying room (9) to spray the workpiece primer. After the automatic spraying, the hanging conveyor transports the workpiece to the manual primer repair room to inspect and spray the workpiece primer defects. After the spraying is completed, the hanging conveyor transports the workpiece to the primer leveling room to perform a leveling operation on the primer, and then passes through the primer drying room to dry the primer. The second strong cooling room performs a strong cooling operation on the workpiece to fix the primer;

[0029] S4, the hanging conveyor transports the workpiece processed in step S3 to the robot automatic spraying paint room for workpiece topcoat spraying. After automatic spraying, the hanging conveyor transports the workpiece to the manual touch-up paint room for spraying and inspection of workpiece topcoat defects. After spraying is completed, the hanging conveyor transports the workpiece to the topcoat leveling room to perform leveling operations on the topcoat to reduce defects such as bulges in the topcoat. The topcoat is then dried in the topcoat drying room. The third strong cooling room performs a strong cooling operation on the workpiece to fix the topcoat.

[0030] The S5 hanging conveyor transports the workpiece processed in step S4 to the semi-automatic unloading machine to disassemble the workpiece and remove it from the hanging conveyor.

[0031] The advantages and positive effects achieved by the present invention are:

[0032] 1. The system of the present invention has a high degree of automation: through the coordinated work of the hanging conveyor, semi-automatic loading and unloading machines, robot automatic primer spraying and other equipment, the automated production of oil cylinder spray painting is realized, and the production efficiency and quality stability are improved.

[0033] 2. The system of the present invention has good coating effect: the pre-treatment section adopts a partitioned spray system, which can comprehensively clean and treat the oil cylinder; the automatic spray booths for primer and topcoat adopt dry spray booths and automatic workpiece rotation devices to ensure the uniformity and quality of paint spraying.

[0034] 3. The system of the present invention is energy-saving and environmentally friendly: it adopts upper and lower areas for spraying, and the oil cylinder can open the corresponding area for spraying as needed according to the length, which saves energy consumption; the moisture drying furnace, primer drying furnace and topcoat drying furnace adopt a parallel integrated structure, and the hot air circulation system adopts the method of downward air supply and upward air return, which can effectively utilize energy and reduce energy consumption; at the same time, the paint mist capture system adopts double-stage filtration, which can effectively reduce the emission of paint mist and protect the environment.

[0035] 4. The cylinder spray painting production line of this invention has achieved excellent results in practical applications. Through automated production, it improves production efficiency and quality stability, reduces errors and labor intensity in manual operation, and adopts energy-saving and environmentally friendly designs, reducing energy consumption and environmental pollution, resulting in high economic and social benefits.

[0036] 5. The system of this invention uses automated detection and control technology to reduce worker labor intensity, improve work efficiency, and ensure safety and accuracy. This coating production line system has the following characteristics: good compatibility, capable of co-producing multiple cylinders, system beat operation, high degree of automation; pre-treatment zone spraying, easy to use, simple to control, energy-saving and consumption-reducing, economical and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the overall structural layout of the system of the present invention;

[0038] Figure 2 for Figure 1 Schematic diagram of the structural layout of the pre-processing section;

[0039] Figure 3 for Figure 1 A structural connection diagram of a robot automatic spray painting room;

[0040] Figure 4 for Figure 1 A structural connection diagram of a manual touch-up paint room;

[0041] Figure 5 for Figure 1 A structural connection diagram of a drying and curing furnace;

[0042] Figure 6 for Figure 1 A schematic diagram of a structural connection between the first strong cooling room in the middle and the first strong cooling room;

[0043] Figure 7 for Figure 1 A structural connection diagram of the third strong cooling room. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the following examples. The following examples are descriptive rather than restrictive, and the scope of protection of the present invention cannot be limited by the following examples.

[0045] The various experimental operations involved in the specific embodiments are all routine techniques in the field. For parts not specifically annotated in this document, ordinary technicians in this field can refer to various commonly used reference books, scientific literature or related instructions, manuals, etc. before the filing date of this invention to implement them.

[0046] A cylinder painting system, the system can spray paint the cylinder workpiece to be sprayed, such as Figure 1 As shown, the system includes a hanging conveyor 1, a semi-automatic loading machine 2, a surface grinding and cleaning room 3, a pretreatment section 4, an automatic and manual water blowing room 5, a moisture drying room 6, a first forced cooling room 7, an upper shielding part 8, a robot automatic primer spraying room 9, a manual primer touch-up room 10, a primer leveling room 11, a primer drying room 12, a second forced cooling room 13, a robot automatic topcoat spraying room 14, a manual topcoat touch-up room 15, a topcoat leveling room 16, a topcoat drying room 17, a third forced cooling room 18, a semi-automatic unloading machine 19, a paint mixing room 21 and a track 22;

[0047] The semi-automatic loading machine 2, the surface grinding and cleaning room 3, the pretreatment section 4, the automatic and manual water blowing room 5, the moisture drying room 6, the first strong cooling room 7, the upper shielding part 8, the robot automatic spray primer room 9, the manual primer room 10, the primer leveling 11, the primer drying room 12, the second strong cooling room 13, the robot automatic spray topcoat room 14, the manual topcoat room 15, the topcoat leveling room 16, the topcoat drying room 17, the third strong cooling room 18, and the semi-automatic unloading machine 19 are all connected in sequence by a track 22, and the hanging conveyor 1 can transport the cylinder workpiece to be sprayed to the above-mentioned sections in sequence through the track 22;

[0048] The shape and size of the upper shielding member 8 match some of the mounting holes on the oil cylinder and can block the mounting holes to prevent them from being painted and damaging the tolerance of the mounting holes of the workpiece, thereby making it impossible to install, obstructing installation, or damaging the workpiece.

[0049] The semi-automatic loading machine 2 can load the workpiece onto the hanging conveyor 1, the surface grinding and cleaning room 3 can perform grinding operations on the surface of the workpiece to make its surface smooth and convenient for painting, the pretreatment section 4 can perform pretreatment operations on the workpiece to improve the quality of painting and facilitate painting operations, the automatic and manual water blowing room 5 can perform water blowing operations on the workpiece to adsorb impurities in the pretreatment in the water, the water drying room 6 can perform water drying operations on the workpiece to make the surface of the workpiece smooth, the first strong cooling room 7 can perform strong cooling operations on the workpiece to make the surface of the workpiece smooth and convenient for painting operations, the robot automatic primer spraying room 9 can perform primer spraying operations on the workpiece, the manual primer filling room 10 can spray and inspect the primer defects on the workpiece, and the primer leveling room 11 can perform primer leveling operations , reducing defects such as primer bulges, the primer drying room 12 can dry the primer to fix the primer, the second strong cooling room 13 can perform strong cooling operations on the workpiece to make the primer more fixed, the robot automatic spray paint room 14 can perform workpiece topcoat spraying operations, the manual topcoat room 15 can spray and inspect workpiece topcoat defects, the topcoat leveling room 16 can perform leveling operations on the topcoat to reduce defects such as primer bulges, the topcoat drying room 17 can dry the topcoat to fix the topcoat, the third strong cooling room 18 can perform strong cooling operations on the workpiece to make the topcoat more fixed, the semi-automatic unloading machine 19 can disassemble and remove the workpiece from the hanging conveyor 1, and the paint mixing room 21 can mix the paint required for system production to ensure the quality and stability of the paint.

[0050] In this embodiment, the system includes an electronic control system 20, which is connected to the hanging conveyor 1, the semi-automatic loading machine 2, the surface grinding and cleaning room 3, the pretreatment section 4, the automatic and manual water blowing room 5, the moisture drying room 6, the first strong cooling room 7, the upper shielding part 8, the robot automatic primer spraying room 9, the manual primer repair room 10, the primer leveling room 11, the primer drying room 12, the second strong cooling room 13, the robot automatic topcoat spraying room 14, the manual topcoat repair room 15, the topcoat leveling room 16, the topcoat drying room 17, the third strong cooling room 18, the semi-automatic unloading machine 19, and the paint mixing room 21. The electronic control system 20 can control the operation of the entire production line, such as the electronic control system 20 can control the action sequence and operation parameters of the hanging conveyor, the semi-automatic loading and unloading machines, the robot automatic primer spraying, the manual primer repair, the robot automatic topcoat spraying, and the manual topcoat repair equipment.

[0051] In this embodiment, the suspension conveyor 1 is movably connected to the track 22 through a painting assembly line chain (not shown in the figure), and the suspension conveyor can drive the painting assembly line chain to move along the track 22. A plurality of primary slings (not shown in the figure) are arranged at intervals on the painting assembly line chain, and the suspension conveyor adopts a rhythmic operation. The suspension conveyor can drive the painting assembly line chain to move along the track 22. Several primary slings are fixed on the painting assembly line chain, and the secondary slings are manually assembled on the cylinder in the online area, and the cylinder equipped with the secondary sling is transferred to the primary sling of the suspension conveyor through a semi-automatic loading machine.

[0052] In this embodiment, if Figure 2 As shown, the pre-treatment section 4 includes a first exhaust system 401a, a first hot water washing spray system 402, a pre-degreasing spray system 403, a degreasing spray system 404, a first water washing spray system 405, a second water washing spray system 406, a first pure water direct injection system 407, a phosphating spray system 408, a third water washing spray system 409, a second pure water direct injection system 410, a second hot water washing spray system 411, a high-pressure blower automatic water blowing system 412 and a second exhaust system 401b, and the artificial water blowing room 5 includes a compressed air artificial water blowing system 501, a first exhaust system 401a, a first hot water washing spray system 402, a pre-degreasing spray system 403, a degreasing spray system The spraying system 404, the first water washing spraying system 405, the second water washing spraying system 406, the first pure water direct injection system 407, the phosphating spraying system 408, the third water washing spraying system 409, the second pure water direct injection system 410, the second hot water washing spraying system 411, the high-pressure fan automatic water blowing system 412, the second exhaust system 401b and the compressed air manual water blowing system 501 are connected in sequence. The spraying systems all adopt the system of Chinese utility model patent CN220497073U. The pre-treatment section can comprehensively clean and treat the oil cylinder, so that the system can remove impurities such as oil and rust, providing good surface quality for subsequent painting.

[0053] In this embodiment, if Figure 3As shown, the robot automatic primer spraying room 9 and the robot automatic topcoat spraying room 14 both include an exhaust gas exhaust duct 901, a circulating filter air box 902, a circulating fan 903, a pressure equalizing chamber 904, a ceiling cotton 905, an automatic workpiece rotation device 906, an automatic spray paint room body 907, a paint spraying robot 908 and a paint mist capture system 909. The automatic spray paint room body 907 is arranged in a vertical direction, the pressure equalizing chamber 904 is closely connected and arranged in the upper part of the automatic spray paint room body 907, and the ceiling cotton 905 is connected and arranged in the pressure equalizing chamber 904. At the bottom of the automatic spray paint room, the paint mist capture system 909 is closely connected and arranged at the bottom of the automatic spray paint room body 907. The input end of the circulating filter air box 902 is connected to the output end of the circulating fan 903 through a pipeline. The output end of the circulating filter air box 902 is closely connected to the equalizing pressure chamber 904. The input end of the circulating fan 903 is closely connected to the paint mist capture system 909. The spray capture system 909 can capture the smoke falling after spraying, improve the stability of the humidity in the dynamic spray paint room, and ensure the cleanliness of the room through circulating filtration.

[0054] The exhaust gas exhaust duct 901 is closely connected to the circulating filter air box 902 and the circulating fan 903 to facilitate the exhaust gas discharge.

[0055] The painting robot 908 and the workpiece automatic rotation device 906 are both arranged in the automatic painting room body 907. The workpiece transported by the hanging conveyor 1 can be detachably connected to the workpiece automatic rotation device 906, and the workpiece automatic rotation device 906 can drive the workpiece to rotate so that it can be painted on multiple sides to ensure the painting effect; the painting robot 908 can perform painting operations on the workpiece on the workpiece automatic rotation device 906.

[0056] In this embodiment, if Figure 4As shown, the manual primer repair room 10 and the manual topcoat repair room 15 both include an exhaust gas exhaust duct 1001, an air supply air conditioning unit 1002, an exhaust gas exhaust fan 1003, a pressure equalizing chamber 1004, a ceiling cotton 1005, an automatic workpiece rotation device 1006, a manual paint repair room body 1007, a manual paint repair lifting platform 1008 and a paint mist capture system 1009. The manual paint repair room body 1007 is arranged in a vertical direction, the pressure equalizing chamber 1004 is closely connected and arranged in the upper part of the manual paint repair room body 1007, and the ceiling cotton 1005 is connected and arranged in the pressure equalizing chamber 1004. At the bottom of the room, the paint mist capture system 1009 is closely connected and arranged at the bottom of the manual touch-up paint room body 1007. The input end of the air supply air conditioning unit 1002 is connected to the output end of the exhaust gas exhaust fan 1003 through a pipeline. The output end of the air supply air conditioning unit 1002 is closely connected to the pressure equalizing chamber 1004. The input end of the exhaust gas exhaust fan 1003 is closely connected to the paint mist capture system 1009. The paint mist capture system 1009 can capture the smoke falling after painting, improve the stability of the humidity in the dynamic spray painting room, and ensure the cleanliness of the room through circulation filtration.

[0057] The exhaust gas exhaust duct 1001 is closely connected to the exhaust gas exhaust fan 1003 to facilitate the exhaust of exhaust gas.

[0058] The manual paint touch-up lifting platform 1008 and the workpiece automatic rotating device 1006 are both arranged in the manual paint touch-up room body 1007. The workpiece transported by the hanging conveyor 1 can be detachably connected to the workpiece automatic rotating device 1006, and the workpiece automatic rotating device 1006 can drive the workpiece to rotate so that it can be painted on multiple sides to ensure the painting effect; the manual paint touch-up lifting platform 1008 can accommodate paint touch-up workers, and the manual paint touch-up lifting platform 1008 can drive the paint touch-up workers to move up and down, and the paint touch-up workers can perform paint touch-up operations on the workpiece on the workpiece automatic rotating device 1006.

[0059] The manual paint touch-up platform can lift the workers to the work point, the workpiece automatic rotation device can rotate the workpiece for multi-sided spraying, the paint mist capture system can capture the spray falling after painting, the exhaust gas exhaust duct 1001, the exhaust gas exhaust fan 1003 and the paint mist capture system 1009 are connected in sequence, so that the spray captured by the paint mist capture system is discharged into the manual paint touch-up room body 1007, the air supply air conditioning unit 1002, the equalizing chamber 1004 and the ceiling cotton 1005 are connected in sequence and arranged on the upper part of the manual paint touch-up room body 1007, which can ensure the air humidity and air cleanliness of the manual paint touch-up room body.

[0060] Preferably, the robot automatic primer spraying room 9, manual primer spraying room 10, robot automatic topcoat spraying room 14 and manual topcoat spraying room 15 are all configured as dry spray paint rooms, the robot automatic primer spraying room 9 and the robot automatic topcoat spraying room 14 have a laminar flow wind speed of about 0.3-0.4m / s in the air supply area, the manual primer spraying room 10 and the manual topcoat spraying room 15 have a laminar flow wind speed of about 0.4-0.6m / s in the air supply area, the paint mist capture system is installed in the paint room pit, the automatic spray paint room and the manual spray paint room are separated, filtered separately and adopt two-stage filtration, the front stage adopts a paper shell filter, and the rear stage adopts a special baffled paint mist capture box, each spray paint room is equipped with a centrifugal explosion-proof fan for exhaust, and the exhaust gas is transported to the exhaust gas treatment device through the exhaust duct and discharged after being treated to meet the standards.

[0061] In this embodiment, if Figure 5 As shown, the moisture drying room 6, primer drying room 12 and topcoat drying room 17 all include an exhaust gas emission system 601, a heating chamber 602, a drying chamber body 603, a temperature control system 604 and an air supply duct 605. The drying chamber body 603 is arranged in a horizontal direction, and the exhaust gas emission system 601 and the heating chamber 602 are both arranged on the upper part of the drying chamber body 603 and are connected through the temperature control system 604 and the air supply duct 605, and adopt a hot air circulation method of downward air supply and upper return air, thereby improving the working efficiency in the drying room and improving the adhesion and durability of the paint.

[0062] Preferably, the moisture drying room 6, primer drying room 12, and topcoat drying room 17 are all equipped with PID digital automatic temperature controllers and temperature sensors. These control the burner power to adjust the drying oven temperature, starting and stopping the burner according to the temperature. The drying oven temperature range is 80-100°C. This effectively dries moisture and paint from the cylinder surface, further improving paint adhesion and durability. The moisture drying oven, primer drying oven, and topcoat drying oven can be integrated in parallel.

[0063] In this embodiment, if Figure 6 As shown, the first forced cooling room 7 and the second forced cooling room 13 both include an exhaust fan 701, a forced cooling chamber body 702 and a negative pressure fan 703. The forced cooling chamber body 702 is arranged in a horizontal direction, the exhaust fan 701 is arranged at the upper part of the forced cooling chamber body 702, and the negative pressure fan 703 is arranged at the lower part of the forced cooling chamber body 702. The bottom negative pressure fan blows air upward, and the overall structure adopts an integrated air supply and exhaust air conditioning unit structure to provide a stable cooling effect and meet the cooling requirements under different working conditions.

[0064] In this embodiment, if Figure 7As shown, the third forced cooling room 18 includes an integrated air supply and exhaust air conditioning unit 1801, an air supply duct 1802, a forced cooling chamber body 1803, a forced cooling nozzle 1804 and a return air duct 1805. The forced cooling chamber body 1803 is arranged in a horizontal direction, and the integrated air supply and exhaust air conditioning unit 1801 is installed on the top of the forced cooling chamber body. The forced cooling nozzle 1804 is installed in the forced cooling chamber body 1803. The forced cooling nozzle 1804 is connected to the integrated air supply and exhaust air conditioning unit 1801 through the air supply duct 1802 and the return air duct 1805 to form a forced cooling air circuit, providing efficient and stable cooling effect to meet the cooling requirements under different working conditions.

[0065] The method for using the above-mentioned cylinder spray painting system includes the following steps:

[0066] (1) The staff produces the required paint through the paint mixing system in the paint mixing room 21 and sets it in the robot automatic primer spraying room 9, the manual primer repair room 10, the robot automatic topcoat spraying room 14 and the manual topcoat repair room 15, and then starts the electronic control system 20; the hanging conveyor 1 drives the painting assembly line chain to move along the track, and several primary hoists are fixed on the painting assembly line chain, and the secondary hoists are manually assembled on the semi-automatic loading machine 2.

[0067] (2) The semi-automatic loading machine 2 loads the workpiece onto the overhead conveyor 1, which transports the workpiece to the surface grinding and cleaning room 3 for grinding the workpiece surface. After grinding, the overhead conveyor 1 transports the workpiece to the pretreatment section 4 for pretreatment of the workpiece;

[0068] (3) The hanging conveyor 1 transports the workpiece processed in step (2) to the automatic and manual water blowing room 5 to blow water on the workpiece to absorb impurities, and then passes through the water drying room 6 to dry the workpiece to make the surface of the workpiece smooth. After the treatment is completed, the hanging conveyor 1 transports the workpiece to the first strong cooling room 7 to perform a strong cooling operation on the workpiece. Then the hanging conveyor 1 transports the workpiece to the robot automatic primer spraying room 9 to spray the workpiece primer. After the automatic spraying, the hanging conveyor 1 transports the workpiece to the manual primer repair room 10 to inspect and spray the workpiece primer defects. After the spraying is completed, the hanging conveyor 1 transports the workpiece to the primer leveling room 11 to perform a leveling operation on the primer, and then passes through the primer drying room 12 to dry the primer. The second strong cooling room 13 performs a strong cooling operation on the workpiece to fix the primer.

[0069] (4) The hanging conveyor 1 transports the workpiece processed in step (3) to the robot automatic topcoat spraying room 14 for topcoat spraying. After automatic spraying, the hanging conveyor 1 transports the workpiece to the manual topcoat repair room 15 for spraying and inspecting the topcoat defects. After spraying, the hanging conveyor 1 transports the workpiece to the topcoat leveling room 16 to perform a topcoat leveling operation to reduce defects such as bulges in the topcoat. The topcoat is then dried in the topcoat drying room 17. The third strong cooling room 18 performs a strong cooling operation on the workpiece to fix the topcoat.

[0070] (5) The hanging conveyor 1 transports the workpiece processed in step (4) to the semi-automatic unloading machine 19 to disassemble and remove the workpiece from the hanging conveyor 1.

[0071] Although the embodiments of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments.

Claims

1. A cylinder painting system, characterized by: The system can perform a painting operation on a cylinder workpiece to be sprayed, and the system comprises a hanging conveyor (1), a semi-automatic loading machine (2), a surface grinding and cleaning room (3), a pretreatment section (4), an automatic and manual water blowing room (5), a moisture drying room (6), a first strong cooling room (7), an upper shielding part (8), a robot automatic primer spraying room (9), a manual primer filling room (10), a primer leveling room (11), a primer drying room (12), a second strong cooling room (13), a robot automatic topcoat spraying room (14), a manual topcoat filling room (15), a topcoat leveling room (16), a topcoat drying room (17), a third strong cooling room (18), a semi-automatic unloading machine (19), a paint mixing room (21) and a track (22); The semi-automatic loading machine (2), the surface grinding and cleaning room (3), the pretreatment section (4), the automatic and manual water blowing room (5), the moisture drying room (6), the first strong cooling room (7), the upper shielding part (8), the robot automatic primer spraying room (9), the manual primer filling room (10), the primer leveling room (11), the primer drying room (12), the second strong cooling room (13), the robot automatic topcoat spraying room (14), the manual topcoat filling room (15), the topcoat leveling room (16), the topcoat drying room (17), the third strong cooling room (18), and the semi-automatic unloading machine (19) are all connected and arranged in sequence through the track (22), and the hanging conveyor (1) can transport the oil cylinder workpiece to be sprayed to the above-mentioned sections in sequence through the track (22); The shape and size of the upper shielding member (8) are matched with some of the mounting positioning holes on the oil cylinder and can cover the mounting positioning holes; The semi-automatic loading machine (2) can load the workpiece onto the hanging conveyor 1, the surface grinding and cleaning room (3) can grind the surface of the workpiece, the pretreatment section (4) can pretreatment the workpiece, the automatic and manual water blowing room (5) can blow water on the workpiece, the moisture drying room (6) can dry the workpiece, the first strong cooling room (7) can strong cool the workpiece, the robot automatic primer spraying room (9) can spray the primer on the workpiece, the manual primer repair room (10) can spray and inspect the primer defects on the workpiece, and the primer leveling room (11) can level the primer. Operation, the primer drying room (12) can dry the primer, the second strong cooling room (13) can perform strong cooling operation on the workpiece, the robot automatic spray topcoat room (14) can spray the workpiece topcoat, the manual topcoat room (15) can spray and inspect the topcoat defects of the workpiece, the topcoat leveling room (16) can level the topcoat, the topcoat drying room (17) can dry the topcoat, the third strong cooling room (18) can perform strong cooling operation on the workpiece, the semi-automatic unloading machine (19) can disassemble the workpiece and remove it from the hanging conveyor (1), and the paint mixing room 21 can mix the paint required for the system production.

2. The system according to claim 1, wherein: The system comprises an electric control system (20), the electric control system (20) and a hanging conveyor (1), a semi-automatic loading machine (2), a surface grinding and cleaning room (3), a pretreatment section (4), an automatic and manual water blowing room (5), a moisture drying room (6), a first strong cooling room (7), an upper shielding part (8), a robot automatic primer spraying room (9), a manual primer filling room (10), a primer leveling room (11), a primer drying room (12), a second strong cooling room (13), a robot automatic topcoat spraying room The production line comprises a first production line (14), a manual topcoat room (15), a topcoat leveling room (16), a topcoat drying room (17), a third strong cooling room (18), a semi-automatic unloading machine (19), and a paint mixing room (21), which are all connected and arranged. The electric control system (20) can control the operation of the entire production line. The electric control system (20) can control the action sequence and operation parameters of the hanging conveyor, the semi-automatic loading and unloading machine, the robot automatic primer spraying, the manual primer repair, the robot automatic topcoat spraying, and the manual topcoat repair equipment.

3. The system according to claim 1, wherein: The hanging conveyor (1) is movably connected to a track (22) via a coating line chain, and the hanging conveyor can drive the coating line chain to move along the track (22). A plurality of primary slings are arranged at intervals on the coating line chain, and the hanging conveyor adopts a rhythmic operation, and the hanging conveyor can drive the coating line chain to move along the track (22).

4. The system according to claim 1, wherein: The pre-treatment section (4) includes a first exhaust system (401a), a first hot water washing spray system (402), a pre-degreasing spray system (403), a degreasing spray system (404), a first water washing spray system (405), a second water washing spray system (406), a first pure water direct spray system (407), a phosphating spray system (408), a third water washing spray system (409), a second pure water direct spray system (410), a second hot water washing spray system (411), a high-pressure blower automatic water blowing system (412) and a second exhaust system (401b), and the artificial water blowing room (5) includes a compressed air artificial water blowing system (501), a first The exhaust system (401a), the first hot water washing spray system (402), the pre-degreasing spray system (403), the degreasing spray system (404), the first water washing spray system (405), the second water washing spray system (406), the first pure water direct injection system (407), the phosphating spray system (408), the third water washing spray system (409), the second pure water direct injection system (410), the second hot water washing spray system (411), the high-pressure fan automatic water blowing system (412), the second exhaust system (401b) and the compressed air manual water blowing system (501) are connected in sequence, and the pre-treatment section can comprehensively clean and treat the oil cylinder.

5. The system according to claim 1, wherein: The robot automatic primer spraying room (9) and the robot automatic topcoat spraying room (14) both comprise an exhaust gas exhaust duct (901), a circulating filter bellows (902), a circulating fan (903), a pressure equalizing chamber (904), a ceiling cotton (905), a workpiece automatic rotating device (906), an automatic spraying room body (907), a spraying robot (908) and a paint mist capturing system (909), wherein the automatic spraying room body (907) is arranged in a vertical direction, the pressure equalizing chamber (904) is closely connected to the upper part of the automatic spraying room body (907), and the ceiling cotton is arranged to rotate the workpiece automatically. The cotton (905) is connected and arranged at the bottom of the equalizing pressure chamber (904), the paint mist capture system (909) is closely connected and arranged at the bottom of the automatic spray painting room body (907), the input end of the circulating filter bellows (902) and the output end of the circulating fan (903) are connected and arranged through a pipeline, the output end of the circulating filter bellows (902) is closely connected and arranged with the equalizing pressure chamber (904), the input end of the circulating fan (903) is closely connected and arranged with the paint mist capture system (909), and the spray capture system (909) can capture the smoke falling after spraying; The exhaust gas exhaust duct (901) is closely connected to the circulating filter bellows (902) and the circulating fan (903); The painting robot (908) and the workpiece automatic rotating device (906) are both arranged in the automatic painting room body (907); the workpiece transported by the hanging conveyor (1) can be detachably connected to the workpiece automatic rotating device (906), and the workpiece automatic rotating device (906) can drive the workpiece to rotate so that it can be painted on multiple sides; the painting robot (908) can perform a painting operation on the workpiece on the workpiece automatic rotating device (906).

6. The system according to claim 1, wherein: The manual primer repair room (10) and the manual topcoat repair room (15) both comprise an exhaust gas exhaust duct (1001), an air supply air conditioning unit (1002), an exhaust gas exhaust fan (1003), a pressure equalizing chamber (1004), a ceiling cotton (1005), an automatic workpiece rotating device (1006), a manual paint repair room body (1007), a manual paint repair lifting platform (1008) and a paint mist capturing system (1009), wherein the manual paint repair room body (1007) is arranged in a vertical direction, the pressure equalizing chamber (1004) is closely connected and arranged at the upper part of the manual paint repair room body (1007), and the ceiling cotton is arranged at the upper part of the manual paint repair room body (1007). (1005) is connected and arranged at the bottom of the equalizing pressure chamber (1004), the paint mist capture system (1009) is closely connected and arranged at the bottom of the manual touch-up paint room body (1007), the input end of the air supply air conditioning unit (1002) and the output end of the exhaust gas exhaust fan 1003 are connected through a pipeline, the output end of the air supply air conditioning unit (1002) is closely connected and arranged with the equalizing pressure chamber (1004), the input end of the exhaust gas exhaust fan (1003) is closely connected and arranged with the paint mist capture system (1009), and the paint mist capture system (1009) can capture the smoke falling after painting; The exhaust gas discharge duct (1001) is closely connected to the exhaust gas discharge fan (1003); The manual paint touch-up lifting platform (1008) and the workpiece automatic rotating device (1006) are both arranged in the manual paint touch-up room body (1007); the workpiece transported by the hanging conveyor (1) can be detachably connected to the workpiece automatic rotating device (1006), and the workpiece automatic rotating device (1006) can drive the workpiece to rotate; the manual paint touch-up lifting platform (1008) can accommodate a paint touch-up worker, and the manual paint touch-up lifting platform (1008) can drive the paint touch-up worker to move up and down, and the paint touch-up worker can perform paint touch-up operations on the workpiece on the workpiece automatic rotating device (1006). The manual paint touch-up platform (1008) can lift the worker to the work point, the workpiece automatic rotation device (1006) can rotate the workpiece to perform multi-sided spraying, the paint mist capture system (1009) can capture the spray that falls after painting, the exhaust gas exhaust duct (1001), the exhaust gas exhaust fan (1003) and the paint mist capture system (1009) are connected in sequence, so that the spray captured by the paint mist capture system is discharged into the manual paint touch-up room body (1007), and the air supply air conditioning unit (1002), the equalizing chamber (1004) and the ceiling cotton (1005) are connected in sequence and arranged on the upper part of the manual paint touch-up room body (1007). Alternatively, the robot automatic primer spraying room (9), the manual primer spraying room (10), the robot automatic topcoat spraying room (14) and the manual topcoat spraying room (15) are all configured as dry spraying rooms, the air supply area of ​​the robot automatic primer spraying room (9) and the robot automatic topcoat spraying room (14) has a laminar flow wind speed of about 0.3-0.4 m / s, the air supply area of ​​the manual primer spraying room (10) and the manual topcoat spraying room (15) has a laminar flow wind speed of about 0.4-0.6 m / s, the paint mist capture system is installed in the paint room pit, the automatic spraying room and the manual spraying room are separated, filtered separately and adopt double-stage filtration, the front stage adopts a paper shell filter, and the rear stage adopts a special baffle paint mist capture box, each spraying room is equipped with a centrifugal explosion-proof fan for exhaust, and the exhaust gas is transported to the exhaust gas treatment device through the exhaust duct and discharged after being treated to meet the standards.

7. The system according to claim 1, wherein: The moisture drying room (6), primer drying room (12) and topcoat drying room (17) all include an exhaust gas discharge system (601), a heating chamber (602), a drying chamber body (603), a temperature control system (604) and an air supply duct (605). The drying chamber body (603) is arranged in a horizontal direction. The exhaust gas discharge system (601) and the heating chamber (602) are both arranged on the upper part of the drying chamber body (603) and are connected through the temperature control system (604) and the air supply duct (605). A hot air circulation method of downward air supply and upward air return is adopted. Alternatively, the moisture drying room (6), primer drying room (12) and topcoat drying room (17) are all equipped with a PID digital automatic temperature controller and a temperature sensor, which adjusts the temperature of the drying furnace by controlling the firepower of the burner, and controls the start and stop of the burner according to the temperature. The temperature range of the drying furnace is 80-100°C, and the moisture drying furnace, primer drying furnace and topcoat drying furnace can adopt a parallel integrated structure.

8. The system according to claim 1, wherein: The first forced cooling room (7) and the second forced cooling room (13) both comprise an exhaust fan (701), a forced cooling chamber body (702) and a negative pressure fan (703); the forced cooling chamber body (702) is arranged in a horizontal direction; the exhaust fan (701) is arranged at the upper part of the forced cooling chamber body (702); the negative pressure fan (703) is arranged at the lower part of the forced cooling chamber body (702); the bottom negative pressure fan blows air upwards; and the whole adopts an integrated air supply and exhaust air conditioning unit structure.

9. The system according to any one of claims 1 to 8, characterized in that: The third forced cooling room (18) comprises an integrated air-conditioning unit for supplying and exhausting air (1801), an air supply duct (1802), a forced cooling chamber body (1803), a forced cooling nozzle (1804) and a return air duct (1805). The forced cooling chamber body (1803) is arranged in a horizontal direction. The integrated air-conditioning unit for supplying and exhausting air (1801) is installed on the top of the forced cooling chamber body. The forced cooling nozzle (1804) is installed in the forced cooling chamber body (1803). The forced cooling nozzle (1804) is connected to the integrated air-conditioning unit for supplying and exhausting air (1801) through the air supply duct (1802) and the return air duct (1805) to form a forced cooling air circuit.

10. The method for using the oil cylinder spray painting system according to any one of claims 1 to 9, characterized in that: The steps include: S1. The staff prepares the required paint through the paint mixing system in the paint mixing room (21) and sets it in the robot automatic primer spraying room (9), the manual primer repair room (10), the robot automatic topcoat spraying room (14) and the manual topcoat repair room (15), and then starts the electric control system (20); the hanging conveyor (1) drives the painting assembly line chain to move along the track, and several primary hangers are fixed on the painting assembly line chain, and the secondary hangers are manually assembled on the semi-automatic loading machine (2). S2, the semi-automatic loading machine (2) loads the workpiece onto the hanging conveyor (1), and the hanging conveyor (1) transports the workpiece to the surface grinding and cleaning room (3) to grind the surface of the workpiece. After the grinding is completed, the hanging conveyor (1) transports the workpiece to the pre-treatment section (4) to pre-treat the workpiece; S3, the hanging conveyor (1) transports the workpiece processed in step S2 to the automatic and manual water blowing room (5) to blow water on the workpiece to absorb impurities, and then passes through the water drying room (6) to dry the workpiece to make the surface of the workpiece smooth. After the treatment is completed, the hanging conveyor (1) transports the workpiece to the first strong cooling room (7) to perform a strong cooling operation on the workpiece. Then the hanging conveyor (1) transports the workpiece to the robot automatic primer spraying room (9) to spray the workpiece primer. After the automatic spraying, the hanging conveyor (1) transports the workpiece to the manual primer repair room (10) to inspect and spray the workpiece primer defects. After the spraying is completed, the hanging conveyor (1) transports the workpiece to the primer leveling room (11) to perform a leveling operation on the primer, and then passes through the primer drying room (12) to dry the primer. The second strong cooling room (13) performs a strong cooling operation on the workpiece to fix the primer. S4, the hanging conveyor (1) transports the workpiece processed in step S3 to the robot automatic topcoat spraying room (14) for topcoat spraying. After the automatic spraying, the hanging conveyor (1) transports the workpiece to the manual topcoat repair room (15) for spraying and inspecting the topcoat defects. After the spraying is completed, the hanging conveyor (1) transports the workpiece to the topcoat leveling room (16) for leveling the topcoat to reduce defects such as bulges on the topcoat. The topcoat is then dried in the topcoat drying room (17). The third strong cooling room (18) performs a strong cooling operation on the workpiece to fix the topcoat. S5 The hanging conveyor (1) transports the workpiece processed in step S4 to the semi-automatic unloading machine (19) to disassemble the workpiece and remove it from the hanging conveyor (1).

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