CN210700812U

CN210700812U - Coating system for profile steel to manufacture crane auxiliary arm

Info

Publication number: CN210700812U
Application number: CN201921227699.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Hunan Xingsha Machine Equipment Co ltd
Current assignee: Hunan Xingsha Machine Equipment Co ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-06-09
Anticipated expiration: 2029-08-01

Abstract

The utility model provides a shaped steel makes coating system of hoist auxiliary arm, including preceding processing unit, the unit of dusting and solidification unit, the solidification unit is including the second forced cooling room that is used for the solidification spray-coating and cools off usefulness behind the solidification, and the solidification room includes first room and second room, and the front end of first room is located to the second room, is equipped with the solidification platform in the second room, is equipped with gas heating device in the solidification platform, and solidification platform top both sides are equipped with parallelly connected electric heater unit. The gas heating device and the electric heating device are arranged, complementation is effectively achieved, the gas heating device effectively improves heat flow, the problems of poor heat mobility and non-uniform heating of the electric heating device are solved, meanwhile, the electric heating device effectively overcomes the defects that the gas heating device is slow in temperature rise speed and insufficient in temperature, heating efficiency and uniformity of heating of the auxiliary arm are effectively improved, solidification of powder is facilitated, cracks are effectively reduced, and production efficiency is improved.

Description

Coating system for profile steel to manufacture crane auxiliary arm

Technical Field

The utility model relates to a powder coating technical field, especially a shaped steel makes coating system of hoist auxiliary arm.

Background

The crane auxiliary arm is additionally arranged on a section of adjustable-angle crane arm at the head of the main crane arm in order to increase the operation range (height and amplitude) of the crane, and comprises a folding auxiliary arm and a telescopic auxiliary arm according to different working modes. When the auxiliary arm is not used, the auxiliary arm can be folded, retracted or detached, the application is wide, however, the auxiliary arm is particularly common in outdoor use, so that the surface spraying of the auxiliary arm is particularly important, the service life of the auxiliary arm is conveniently protected, and the rusting is prevented. With the progress and development of science and technology, however, the requirements on the use amount and quality of the auxiliary arm are higher, and the requirements on production equipment are higher and higher.

Patent No. CN 108339695 a discloses a novel energy-saving and environment-friendly textile machine coating line, which comprises: loading, pre-treating, draining, drying and solidifying, forced air cooling, powder spraying, dedusting, powder spraying and solidifying and unloading; the coating production line system adopts an automatic detection and control technology, reduces the labor intensity of workers, improves the working efficiency and is safe and accurate. This coating line system possesses characteristics: the compatibility is good, the parallel production of various different workpieces can be realized, and the system flexibility and the automation degree are high; silane replaces phosphorization, so that the pretreatment process has the characteristics of simple flow, convenience in use, control, energy conservation, consumption reduction, economy, environmental friendliness and the like. The pretreatment process time and the water blowing time are controlled according to the complexity of the workpiece, so that the water consumption, the power consumption and the compressed air consumption are effectively saved.

However, the coating line is uneven in curing and heating, long in heating time and low in efficiency, and a cured product is easy to crack, so that the processing quality of a workpiece is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned not enough of prior art, and provide a coating system of shaped steel preparation hoist fly jib that heating efficiency is high, the solidification is effectual, production efficiency is high.

The technical scheme of the utility model is that: a coating system for manufacturing a crane jib by section steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are arranged on a rail, the jib is conveyed by the rail to finish spraying through the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the jib; the powder spraying unit is used for spraying the auxiliary arm, and the curing unit is used for curing the sprayed powder after spraying; the solidification unit is including the second forced cooling room that is used for the solidification spray to cool off after the solidification, and the solidification room includes first room and second room, and the front end of first room is located to the second room, is equipped with the solidification platform in the second room, is equipped with gas heating device in the solidification platform, and solidification platform top both sides are equipped with electric heating device.

Furthermore, the inner wall of the second chamber is relatively provided with a mounting rack, the mounting rack is relatively provided with electric heating devices connected in parallel, the electric heating devices are arranged in a plurality of rows along the moving direction of the track, and the number of the single-row electric heating devices is 2-15.

Further, the mounting bracket extends to the first chamber, the electric heating device at the extending end is used for preheating the auxiliary arm, the track is arranged in the curing chamber, the track between the first chamber and the second chamber is obliquely and upwards arranged, and the electric heating device is provided with a reflecting cover.

Furthermore, an air inlet is arranged below the second forced cooling chamber, a baffle is arranged at the air inlet, a plurality of rotary nozzles are arranged on the baffle and comprise a spray head and a spherical base, the lower end of the rotary spray head is spherical and is embedded in the spherical base, a plurality of through holes are formed in the baffle, and the spherical base is installed in the through holes.

Further, the baffle includes relative motion's first baffle and second baffle, and first baffle and second baffle coupling or hinge connection are equipped with the air outlet on the forced cooling room, and the top is equipped with the fan.

Further, the pretreatment unit comprises a degreasing chamber, a washing chamber and a derusting chamber, wherein the degreasing chamber, the washing chamber and the derusting chamber are integrated or combined, pedestrian passages are arranged in the chambers, a movable main vehicle passage is arranged at the top of each chamber, a drain outlet is arranged at the lower end of each chamber and is connected with a recovery tank, spray pipes are arranged in the chambers, a plurality of spray nozzles are arranged on the spray pipes, and buffer supports are arranged on the spray pipes; the water washing chamber is connected with the water quality purifier, the water washing chamber comprises a first water washing chamber, a second water washing chamber and a third water washing chamber, the first water washing chamber is arranged between the degreasing chamber and the second water washing chamber, the front end of the second water washing chamber is connected with the rust removing chamber, the third water washing chamber is arranged at the front end of the rust removing chamber, and the front end of the third water washing chamber is provided with a manual cleaning machine; the pretreatment unit also comprises an upper workpiece area and a lower workpiece area.

Further, the powder spraying unit comprises a drying chamber, a first strong cooling chamber and a powder spraying chamber, wherein the drying chamber is dried by gas hot air, and air curtains are arranged at the inlet and the outlet of the drying chamber; the top of the first strong cooling chamber is provided with a first strong cooling chamber circulating fan, the bottom of the first strong cooling chamber is provided with a first strong cooling chamber air inlet, the bottom and the side surface of the first strong cooling chamber are provided with a plurality of adjusting blowing nozzles, and the first strong cooling chamber air outlet is arranged at the top of the strong cooling chamber.

Further, the powder spray chamber bottom is equipped with the suction opening, and the suction opening is connected with powder recovery unit, and the suction opening is equipped with the rotor plate, and the rotor plate is the arc that the top is the platform, and the powder spray chamber both sides are equipped with the powder spray gun, and the powder spray chamber front end is equipped with grating detection device, and the indoor four corners of powder spray is the radius angle, and the powder spray chamber front end still is equipped with the benefit spray gun.

Further, the powder recovery device comprises a first cyclone recoverer and a second cyclone recoverer, wherein an outlet is formed in the lower end of the first cyclone recoverer, the outlet is connected with a vibrating screen of the powder fluidizer through a conveying pipeline, the outlet of the powder fluidizer is connected with a spray gun, an air outlet of the first cyclone recoverer is connected with an air inlet of the second cyclone recoverer, a powder collecting box is arranged at the lower end of the second cyclone recoverer, and an exhaust fan is arranged at the air outlet.

Further, the track includes support, guide rail, removal bus and equalizing beam, and the guide rail is established on the support, is equipped with the chain through driving motor drive in the guide rail, and the chain drives and removes the bus and move forward, removes the bus below and is equipped with equalizing beam, and equalizing beam includes little crossbeam and big crossbeam, and little crossbeam includes first little crossbeam and the little crossbeam of second, the below of first little crossbeam and the little crossbeam of second be equipped with big crossbeam and with first little crossbeam and the little crossbeam swing joint of second, be equipped with a plurality of couples on the big crossbeam and adjust the pole.

The utility model has the characteristics of as follows:

1. the arrangement of the gas heating device and the electric heating device effectively achieves complementation, the gas heating device effectively improves heat flow, overcomes the problems of poor heat fluidity and uneven heating of the electric heating device, effectively overcomes the defects of slow temperature rise speed and insufficient temperature of the gas heating device, effectively improves heating efficiency and uniformity of heating of the auxiliary arm, and further improves the uniformity of heating the auxiliary arm by preheating the electric heating device in advance, thereby facilitating the solidification of powder; the setting of solidification platform has effectually reduced the space of second room, the rate of the second room temperature rise of being convenient for, and the further raise efficiency of the auxiliary arm temperature of being convenient for has effectually reduced the production of fracture, has improved solidification production efficiency.

2. The setting of the rotatory nozzle of second forced cooling room is convenient for concentrate and is cooled off the fly jib, and the heat on the fly jib is taken away in the air current of being convenient for, reaches quick refrigerated effect, and the distance between fly jib and the nozzle can be adjusted to the setting of first baffle and second baffle simultaneously, is convenient for improve the cooling effect, can rotate relatively simultaneously, is convenient for adjust the centralization that improves the air current, the improvement of the production efficiency of being convenient for.

3. The hook on the movable main vehicle is arranged on the adjusting rod, so that the purpose of turning the translation of the auxiliary arm in a limited space is effectively achieved, meanwhile, the straight-going turning convenience in a certain space is also achieved, the conveying efficiency is effectively improved, and the production automation and the production efficiency are improved conveniently.

4. The utility model discloses not confine to the processing to the auxiliary arm, the work piece homoenergetic of the size of a dimension that can also be fit for and weight is sprayed, the effectual practicality that improves coating system.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of the process and equipment of the coating system of the present invention;

FIG. 2 is a cross-sectional view of the washing chamber of FIG. 1;

FIG. 3 is a cross-sectional view of the drying chamber shown in FIG. 1;

FIG. 4 is a cross-sectional view of the first forced cooling chamber of FIG. 1;

FIG. 5 is a cross-sectional view of the powder spray chamber of FIG. 1;

FIG. 6 is a cross-sectional view of the curing chamber of FIG. 1;

FIG. 7 is a schematic view of the electric heating device in FIG. 6;

FIG. 8 is a cross-sectional view of the electric heating apparatus shown in FIG. 7;

FIG. 9 is a schematic view of the rotary sprinkler head of the second intensive cooling chamber in FIG. 1;

FIG. 10 is a schematic view of the rotary sprayer of FIG. 9;

FIG. 11 is a schematic view of the track structure of FIG. 1;

FIG. 12 is a cross-sectional view of the track structure of FIG. 11;

1-workpiece feeding zone, 2-workpiece discharging zone, 3-rail, 4-recovery tank, 5-degreasing chamber, 6-first strong cooling chamber, 7-first washing chamber, 8-second washing chamber, 9-drying chamber, 10-derusting chamber, 11-air curtain, 12-third washing chamber, 13-manual cleaning machine, 14-water quality purifier, 15-control system, 16-first chamber, 17-electric heating device, 18-second chamber, 19-manual electrostatic powder spraying device, 20-powder fluidizer;

21-grating detection device, 22-powder recovery device, 23-powder spraying chamber, 24-second strong cooling chamber, 25-bracket, 26-fog exhaust fan, 27-chain, 28-small beam, 29-large beam, 30-auxiliary arm, 31-spray pipe, 32-spray nozzle, 33-pedestrian passage, 34-spray pump, 35-drying chamber air outlet, 36-drying chamber burner, 37-drying chamber circulating fan, 38-drying chamber air inlet, 39-first strong cooling chamber air outlet, and 40-first strong cooling chamber circulating fan;

41-an air inlet of a first forced cooling chamber, 42-a rotating plate, 43-a powder collecting groove, 44-an air suction opening, 45-a step, 46-a heat insulation layer, 47-an air outlet, 48-a curing platform and 49-a gas heating device; 50-a mounting frame, 51-a reflector, 52-a baffle, 53-a mounting seat, 54-a rotating nozzle, 55-a flange, 56-a chain guide rail, 57-a movable main car guide rail, 58-a movable shaft, 59-a first small cross beam, 60-a rotating shaft, 61-a hook adjusting rod, 62-a second small cross beam, 63-a first car, 64-a second car, 65-a chain guide pulley, 66-a movable guide rail guide pulley and 67-a clamping plate.

Detailed Description

The sub-arm 30 is made of a steel section having a size of 9627mm 1100mm 900mm (length, width and height when horizontally placed) and a weight of 508kg, and the sub-arm 30 used for the crane is different in size and weight according to the crane of different models, but has substantially the same shape, and the above only gives information on the size and weight of one of the above.

As shown in fig. 1-12: a coating system for manufacturing the crane jib 30 by using the profile steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are connected in series on a rail 3, the jib 30 is conveyed by the rail 3 and is sprayed by the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the jib 30; the powder spraying unit is used for spraying the auxiliary arm 30, and the curing unit is used for curing the sprayed powder after spraying.

As shown in fig. 6-10, the curing unit includes a curing chamber for curing and spraying and a second forced cooling chamber 24 for cooling after curing, the curing chamber includes a first chamber 16 and a second chamber 18, the first chamber 16 and the second chamber 18 are integrally disposed, the first chamber 16 is located at the rear end of the conveying direction, the second chamber 18 is located at the front end of the conveying direction, a curing platform 48 is disposed in the second chamber 18, the curing platform 48 is disposed at the bottom of the lower end of the second chamber 18, a gas heating device 49 is disposed in the curing platform 48, parallel electric heating devices 17 are disposed on two sides above the curing platform 48, the curing temperature in the second curing chamber is 180-, the first curing chamber and the second curing chamber are both of a multilayer structure, the middle is provided with a heat insulation layer 46, the inner layer and the outer layer are both stainless steel alloy layers, and the inner layer can be set into a reflective tinfoil thin layer convenient for heat insulation.

The gas heating device 49 includes: circulating fan, combustor and supply-air duct, circulating fan passes through supply-air duct with the combustor and is connected, circulating fan be 34500 m/h, pressure is 1500Pa, power is 22KW, gas heating device 49's power is 0.75KW, gas heating device 49's supply-air outlet sets up in solidification platform 48, exhaust outlet 47 sets up the top at the second solidification room, when heating sub-arm 30, solidification platform 48 upper end opening is opened, make the hot gas flow form the inner loop in the second solidification room, heat sub-arm 30, make the powder spray on the sub-arm 30 realize rapid solidification, circulating fan's setting, the improvement of heating efficiency of being convenient for, prevent thermal scattering and disappearing, the energy saving of being convenient for, heating device's heat supply capacity is 60 kcal/h.

The relative mounting bracket 50 that is equipped with of second room 18 inner wall, be equipped with electro-heat equipment 17 on the mounting bracket 50, electro-heat equipment 17 sets up along 3 moving direction multirow in track, single row electro-heat equipment 17 quantity is 15 at most, preferably, single heating device vertical arrangement is in the installation in addition, the improvement of the heating efficiency of being convenient for, heating device's power is 5600 big calorie/piece, single heating device parallel arrangement, be convenient for prevent the power overload of single power transmission line and take place the emergence of accidents such as burning off or conflagration, mounting bracket 50 is made for inside hollow metal material, be convenient for the power transmission line is built-in, prevent the influence of high temperature to the power transmission line, be convenient for cost of maintenance's reduction, be convenient for improve heating device life's. The track 3 between the first chamber 16 and the second chamber 18 is obliquely arranged upwards, the mounting frame 50 extends towards the first chamber 16, the electric heating devices 17 at the extending ends are increased one by one along the moving direction of the track 3, so that the auxiliary arm 30 is preheated in advance when entering the second curing chamber, meanwhile, the temperature is gradually increased according to the conveying direction, the heating uniformity of the auxiliary arm 30 is improved, and the preheating effect is improved; the curing time was 50 min.

The arrangement of the gas heating device 49 and the electric heating device 17 effectively achieves complementation, the gas heating device 49 effectively improves heat flow, the problems of poor heat mobility and non-uniform heating of the electric heating device 17 are solved, meanwhile, the electric heating device 17 effectively overcomes the defects of slow temperature rise speed and insufficient temperature of the gas heating device 49, the uniform heating, heat temperature rise speed and curing effect of a workpiece are effectively improved, and the possibility of cracks and bulges on the surface of the cured coated workpiece is effectively reduced.

An air inlet is arranged below the second forced cooling chamber 24, a baffle plate 52 is arranged at the air inlet, a plurality of rotary nozzles 54 are arranged on the baffle plate 52, each rotary nozzle 54 comprises a spray head and a spherical base, the lower end of each spray head is spherical and embedded in the spherical base, the caliber of the upper end of each spray head is small, the caliber of the lower end of each spray head is large, so that the air flow can be concentrated and guided conveniently, a plurality of through holes are formed in the baffle plate 52, the spherical bases are fixedly connected through flanges 55 and installed in the through holes, the spherical bases and the rotary nozzles 54 are convenient to connect and air tightness, the spherical bases are convenient to adjust the angles of the rotary spray heads, so that the air flow can be concentrated and the cooling effect can be improved, the second forced cooling chamber 24 can be arranged into an open space erected by a support; meanwhile, the air inlet can be provided with a dust removal filter screen, so that the pollution of dust to the solidified workpiece is reduced.

Baffle 52 includes relative motion's first baffle 52 and second baffle 52, first baffle 52 and the hub connection of second baffle 52, the setting of first baffle 52 and second baffle 52 is convenient for improve the utilization ratio to the wind, the heat on the work piece is taken away in the convenient wind current, forced cooling room upper end is equipped with the air outlet, the top is equipped with the fan, baffle 52 lower extreme can also set up elevating platform, can adjust the distance between shower nozzle and the work piece according to the size of work piece or the height of position, prevent to blow off or blow off the powder spray after the solidification because of wind-force is too big, or the evenly distributed of powder spray on the work piece surface, the improvement of the cooling effect of being convenient for.

As shown in fig. 2, the pretreatment unit comprises a degreasing chamber 5, a washing chamber and a derusting chamber 10, wherein the degreasing chamber 5, the washing chamber and the derusting chamber 10 are integrated or combined, pedestrian passages 33 are arranged in the chambers, a movable main vehicle passage is arranged at the top of each chamber, a drain outlet is arranged at the lower end of each chamber and is connected with a recovery tank 4, and spray pipes 31 are arranged in the chambers; the spray pipe 31 is in a door frame shape, the top of the spray pipe is provided with a fracture, the spray pipe 31 is provided with a plurality of spray nozzles 32, the spray pipe 31 is provided with a buffer bracket 25, and the arrangement of the buffer bracket 25 prevents the pipeline from being damaged by the back thrust of the spray nozzles 32 in the spray room; degreasing chamber 5 is equipped with the degrease and sprays pump 34, and the power that sprays pump 34 is 11KW, and the rinsing room is equipped with three flows and sprays pump 34 for 45 m/h, and the pump 34 power that sprays of rust cleaning chamber 10 is 11KW, and the rinsing room top is equipped with power and arranges fog fan 26 for 2.2KW simultaneously for get rid of the fog that sprays the back and produce, the pretreatment unit all accomplishes under room temperature environment, if receive the influence in season can adopt the gas to carry out heat treatment to treatment fluid or diluent.

The water washing chamber is connected with a water quality purifier 14, the water washing chamber comprises a first water washing chamber 7, a second water washing chamber 8 and a third water washing chamber 12, the first water washing chamber 7 is arranged between the degreasing chamber 5 and the second water washing chamber 8, the front end of the second water washing chamber 8 is connected with the rust removal chamber 10, the third water washing chamber 12 is arranged at the front end of the rust removal chamber 10, a manual cleaning machine 13 is arranged at the front end of the third water washing chamber 12, the first water washing chamber 7 is sprayed with tap water, and the second water washing chamber 8 and the third water washing chamber 12 are connected with the water quality purifier 14; the pretreatment unit still includes a district 1 and a district 2 down of putting on, and the district 1 of putting on the work separately with a district 2 of putting down sets up, and the needs of the processing of being convenient for make things convenient for the independent operation of putting on, putting down simultaneously or alone, need not to stop whole conveying system, and a district 1 of putting on the work is equipped with hydraulic lifting platform with a district 2 of putting down, is convenient for the convenience of putting on, putting down the work piece.

When the spray type cleaning machine is used, a degreasing chamber 5 is sprayed for 4min to degrease by adopting a phosphorus-free degreasing diluent containing 5-10%, a first washing chamber 7 is sprayed for 2min by adopting tap water, a second washing chamber 8 is sprayed for 2min by adopting pure water, a derusting chamber 10 is sprayed for 4min by adopting organosilane to remove impurities such as rust powder on a workpiece, a third washing chamber 12 is also sprayed for 2min by adopting pure water to remove static electricity on the workpiece, the third washing chamber 12 can be sprayed for multiple times, resources are saved, the cleaning efficiency is improved, after the spraying is finished, whether a place which falls to be sprayed or cannot be treated, particularly a gap or a sunken part is detected, manual spraying can be further adopted to remove impurities such as the rust powder on the workpiece, and the treatment effect of the subsequent processes such as powder spraying and curing is facilitated.

As shown in fig. 3-5, the powder spraying unit includes a drying chamber 9, a first strong cooling chamber 6 and a powder spraying chamber 23, the first strong cooling chamber 6 is disposed between the drying chamber 9 and the powder spraying chamber 23, the drying chamber 9 is dried by gas hot air, an air curtain 11 is disposed at the workpiece inlet and outlet of the drying chamber 9, a transition section is disposed at the workpiece inlet and outlet of the drying chamber 9, an electric door is disposed on the transition section to facilitate heat preservation of the drying chamber 9 and temperature increase effect, the air curtain 11 is disposed in the transition section, and the drying chamber 9 is made of heat preservation material to facilitate improvement of drying effect and uniform heating of the workpiece; the drying temperature is 100-.

The top of the first strong cooling chamber 6 is provided with a first strong cooling chamber circulating fan 40, the bottom of the strong cooling chamber is provided with a first strong cooling chamber air inlet 41, the bottom and the side surface are provided with a plurality of adjusting blowing nozzles, the first strong cooling chamber air outlet 39 is arranged at the top of the strong cooling chamber, the first strong cooling chamber air inlet 41 is arranged at the bottom and the first strong cooling chamber air outlet 39 is arranged at the top, heat can be taken away by air flow, the cooling efficiency is improved conveniently, and the cooling time is 15-20min to 45-50 ℃.

The bottom of the powder spraying chamber 23 is provided with an air suction opening 44, the air suction opening 44 is connected with the powder recovery device 22, the air suction opening 44 is provided with a rotating plate 42, the rotating plate 42 is an arc-shaped plate with a platform top, the bottom of the powder spraying chamber 23 is also provided with a powder collecting groove 43, the air suction opening 44 is arranged at one end of the powder collecting groove 43, the rotating plate 42 is arranged at the upper end opening of the powder collecting groove 43, the rotating plate 42 is in shaft connection with the powder collecting groove 43 and rotates by taking the length direction of the rotating plate 42 as a central axis, the rotating plate 42 is driven by a driving motor to rotate, two sides of the powder spraying chamber 23 are provided with powder spraying guns, the powder spraying guns are connected with powder spraying equipment, the front end of the powder spraying chamber 23 is provided with a grating detection device 21, the powder spraying thickness is 80-100 mu m, one side of the powder spraying chamber 23 is provided with a manual operation, a step 45 is arranged at a through hole, four, the supplementary spraying gun is connected with a manual electrostatic powder spraying device 19, so that manual supplementary spraying of workpieces is facilitated, and a plurality of illuminating lamps are further arranged on the top of the powder spraying chamber 23, so that the powder spraying chamber 23 can be cleaned conveniently and the powder spraying effect can be observed conveniently.

Powder recovery unit 22 includes, first whirlwind recoverer and second whirlwind recoverer, the air outlet and the second whirlwind recoverer air intake connection of first whirlwind recoverer, first whirlwind recoverer lower extreme is equipped with the export, the export is connected with the shale shaker of powder fluidizer 20 through pipeline, the export and the spray gun of powder fluidizer 20 are connected, second whirlwind recoverer lower extreme is equipped with the powder collecting box, 15 KW's air exhauster is connected to the air outlet, the air output is 13500m year/h, first whirlwind recoverer is equipped with the air outlet department of second whirlwind recoverer and strains a section of thick bamboo, be used for the collection to the powder, still be equipped with pulse system on first whirlwind recoverer and the second whirlwind recoverer, be convenient for improve the collection to dusting, the further simultaneously prevent to block up.

As shown in fig. 11-12, the track 3 includes a support 25, a guide rail, a movable main car and an equalizing beam, the guide rail is disposed on the support 25, a chain 27 driven by a driving motor is disposed in the guide rail, the chain 27 drives the movable main car to move forward, the equalizing beam is disposed below the movable main car, the equalizing beam includes a small beam 28 and a large beam 29, the small beam 28 includes a first small beam 59 and a second small beam 62, the large beam 29 is disposed below the first small beam 59 and the second small beam 62 and movably connected with the first small beam 59 and the second small beam 62, and can be connected by a movable shaft 58, the large beam 29 is provided with a plurality of hook adjusting rods 61, the track 3 can also be disposed as a diffuse track 3 and a fast track 3, the fast track 3 is used for processing a pre-processing sheet, the diffuse track 3 is used for processing of a subsequent powder spraying unit and a curing unit, and is also convenient for the coordinated operation of the upper area 1 and the, further reduce the volume of putting of work piece on the track 3, be convenient for reduce track 3's overload and maintenance risk, be convenient for improve track 3 life's improvement.

The large cross beam 29 is a long-strip inner hollow beam formed by welding left and right channel steel and steel plates, the hook adjusting rod 61 is arranged in the inner hollow of the large cross beam 29 in a penetrating mode through a bolt, the position of the hook adjusting rod 61 is adjusted front and back relative to the large cross beam 29 and is fastened through the bolt, the hook adjusting rod 61 is positioned, the workpiece is prevented from moving or shifting due to unstable gravity center of the workpiece when being conveyed, and safety accidents are avoided; the large beam 29 can be also provided with a built-in guide rail structure, so that the hook adjusting rod 61 can move on the large beam 29 to adjust the position of the lifting point, and a positioning device of the hook adjusting rod 61 can be arranged to fix the position of the lifting point, thereby facilitating the moving stability of the workpiece during lifting and conveying and improving the processing efficiency.

The large beam 29 and the small beam 28 are connected through a rotating shaft 60, and the rotating shaft 60 rotates 360 degrees with the vertical direction as an axis. When the large cross beam 29 conveys the auxiliary arm or workpieces with larger sizes, the arrangement of the rotating shaft 60 can enable the conveyed workpieces to be reduced in a limited space, and the workpieces cannot rotate to turn due to overlarge size and length, so that the purpose of workpiece translation turning is achieved, meanwhile, straight turning can be achieved in a larger space, the center distance between the front rail vehicle and the rear rail vehicle is kept unchanged, the problem of curve conveying is effectively solved, and the working efficiency is improved conveniently.

The guide rails comprise a chain guide rail 56 and a movable main vehicle guide rail 57, the chain guide rail 56 and the movable main vehicle guide rail 57 are integrally formed or arranged in an upper position and a lower position, so that the bearing capacity of the rails is improved conveniently, the workpieces are continuously hoisted for continuous production until the spraying of the workpieces is finished, and the guide rails are integrally arranged or arranged in the upper position and the lower position so that the bearing capacity of a single guide rail can be shared; chain guide 56 and removal master car guide rail 57 pass through peripheral U type cardboard 67 bolt or welded fastening, and U type cardboard 67 sets up further improvement between the guide rail joint strength, has also improved the bearing capacity of guide rail simultaneously, the improvement of the conveying efficiency of being convenient for.

The guide rail is provided with a track-changing valve and a waiting station, the rear end of the small beam 28 is provided with a feeler lever for controlling the track-changing valve and/or the waiting station, the feeler lever is convenient for orderly conveying workpieces on the track, so that extrusion or falling is prevented, and energy is saved; a driving motor is arranged above the guide rail and is fixedly connected with the bracket 25 through a bolt, and the driving motor drives the chain 27 to move through a driving wheel.

The movable main vehicle comprises a rail 3 front vehicle and a rail 3 rear vehicle, the rail 3 front vehicle and the rail 3 rear vehicle respectively comprise a first trolley 63 and a second trolley 64, the upper ends of the first trolley 63 and the second trolley 64 are fixedly connected with the chain 27, the lower ends of the first trolley 63 and the second trolley 64 are movably connected with the first small cross beam 59 or the second small cross beam 62, the movable main vehicle is provided with a movable guide rail guide pulley 66 matched with the movable main vehicle guide rail 57, and the chain 27 is provided with a chain guide pulley 65 matched with the chain guide rail 56; the chain guide pulleys 65 are distributed in four directions, i.e., up, down, left, and right, of the chain 27, and the moving guide pulleys 66 are distributed on both sides of the moving cart.

The utility model discloses a theory of operation is: firstly, the auxiliary arm 30 or other workpieces are conveyed through the rail 3 and are sequentially processed by the pretreatment unit, the powder spraying unit and the curing unit to finish the spraying of the workpieces, and the specific process is as follows: the method comprises the steps of loading workpieces → phosphorus-free degreasing → water washing → pure water washing → silane rust removal → pure water washing (and artificial supplementary spraying) → drying treatment → forced cooling → powder spraying (and artificial supplementary spraying) → curing → forced cooling → unloading workpieces, and after degreasing, rust removal and static electricity removal, the powder spraying and curing are carried out on the surfaces of the workpieces to form a protective coating with uniform protection; the utility model has convenient operation, the whole system is provided with the control system 15, the automatic production is realized, the corresponding parameters can be set by the control system 15 to process different workpieces, and the processing is not limited to only processing the auxiliary arm 30; the utility model is convenient in operation simply, the effectual efficiency and the quality that improve the work piece spraying to the work piece even heating in the curing process, the solidification effect of dusting that is heated and evenly makes the surface of work piece is outstanding, the effectual crack or bellied production that has reduced, the effectual efficiency, the quality and the range of application that improve product processing.

The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above embodiments. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple equivalent variant, and these equivalent variants all belong to the utility model discloses a protection scope. In addition, it should be noted that the technical features described in the above embodiments may be separately and independently combined as long as they are within the technical concept of the present invention.

Claims

1. A coating system for manufacturing a crane jib by section steel comprises a pretreatment unit, a powder spraying unit and a curing unit, wherein the pretreatment unit, the powder spraying unit and the curing unit are arranged on a rail, the jib is conveyed by the rail to finish spraying through the pretreatment unit, the powder spraying unit and the curing unit, and the pretreatment unit is used for degreasing, dedusting and static removing of the jib; the powder spraying unit is used for spraying the auxiliary arm, and the curing unit is used for curing the sprayed powder after spraying; the method is characterized in that: the solidification unit is including the second forced cooling room that is used for the solidification spray to cool off after the solidification, and the solidification room includes first room and second room, and the front end of first room is located to the second room, is equipped with the solidification platform in the second room, is equipped with gas heating device in the solidification platform, and solidification platform top both sides are equipped with electric heating device.

2. The coating system for manufacturing the crane jib by using the section steel according to claim 1, wherein: the inner wall of the second chamber is relatively provided with a mounting frame, the mounting frame is relatively provided with electric heating devices connected in parallel, the electric heating devices are arranged in a plurality of rows along the moving direction of the track, and the number of the single-row electric heating devices is 2-15.

3. The coating system for manufacturing the crane jib by using the section steel as claimed in claim 2, wherein: the mounting bracket extends to the first chamber, the electric heating device at the extending end is used for preheating the auxiliary arm, the track is arranged in the curing chamber, the track between the first chamber and the second chamber is obliquely and upwards arranged, and the electric heating device is provided with a reflecting cover.

4. The coating system for manufacturing the crane jib by using the section steel according to claim 1, wherein: the second forced cooling chamber is provided with an air inlet below, the air inlet is provided with a baffle plate, the baffle plate is provided with a plurality of rotary nozzles, each rotary nozzle comprises a spray head and a spherical base, the lower end of each rotary spray head is spherical and is embedded in the spherical base, the baffle plate is provided with a plurality of through holes, and the spherical base is installed in the through holes.

5. The coating system for manufacturing the crane jib by using the section steel as claimed in claim 4, wherein: the baffle comprises a first baffle and a second baffle which move relatively, the first baffle and the second baffle are connected through a shaft or a hinge, an air outlet is formed in the upper end of the forced cooling chamber, and a fan is arranged at the top of the forced cooling chamber.

6. The coating system for manufacturing the crane jib by using the section steel according to claim 1, wherein: the pretreatment unit comprises a degreasing chamber, a washing chamber and a derusting chamber, wherein the degreasing chamber, the washing chamber and the derusting chamber are integrated or combined, pedestrian passages are arranged in the chambers, a movable main vehicle passage is arranged at the top of each chamber, a drain outlet is formed in the lower end of each chamber, the drain outlet is connected with a recovery tank, spray pipes are arranged in the chambers, a plurality of spray nozzles are arranged on the spray pipes, and buffer supports are arranged on the spray pipes; the water washing chamber is connected with the water quality purifier, the water washing chamber comprises a first water washing chamber, a second water washing chamber and a third water washing chamber, the first water washing chamber is arranged between the degreasing chamber and the second water washing chamber, the front end of the second water washing chamber is connected with the rust removing chamber, the third water washing chamber is arranged at the front end of the rust removing chamber, and the front end of the third water washing chamber is provided with a manual cleaning machine; the pretreatment unit also comprises an upper workpiece area and a lower workpiece area.

7. The coating system for manufacturing the crane jib by using the section steel according to claim 1, wherein: the powder spraying unit comprises a drying chamber, a first strong cooling chamber and a powder spraying chamber, wherein the drying chamber is dried by gas hot air, and air curtains are arranged at the inlet and the outlet of the drying chamber; the top of the first strong cooling chamber is provided with a first strong cooling chamber circulating fan, the bottom of the first strong cooling chamber is provided with a first strong cooling chamber air inlet, the bottom and the side surface of the first strong cooling chamber are provided with a plurality of adjusting blowing nozzles, and the first strong cooling chamber air outlet is arranged at the top of the strong cooling chamber.

8. The coating system for manufacturing the crane jib by using the section steel as claimed in claim 7, wherein: the powder spraying chamber is characterized in that a suction opening is formed in the bottom of the powder spraying chamber and connected with a powder recovery device, a rotating plate is arranged at the suction opening and is an arc-shaped plate with the top being a platform, powder spraying guns are arranged on two sides of the powder spraying chamber, a grating detection device is arranged at the front end of the powder spraying chamber, four corners in the powder spraying chamber are rounded corners, and a repair spray gun is further arranged at the front end of the powder spraying chamber.

9. The coating system for manufacturing the crane jib by using the section steel as claimed in claim 8, wherein: the powder recovery device comprises a first cyclone recoverer and a second cyclone recoverer, wherein an outlet is formed in the lower end of the first cyclone recoverer and is connected with a vibrating screen of a powder fluidizer through a conveying pipeline, the outlet of the powder fluidizer is connected with a spray gun, an air outlet of the first cyclone recoverer is connected with an air inlet of the second cyclone recoverer, a powder collecting box is arranged at the lower end of the second cyclone recoverer, and an exhaust fan is arranged at the air outlet.

10. The coating system for manufacturing the crane jib according to any one of claims 1 to 9, wherein: the track includes support, guide rail, removal bus and equalizing beam, and the guide rail is established on the support, is equipped with the chain through driving motor drive in the guide rail, and the chain drives and removes bus forward movement, removes the bus below and is equipped with equalizing beam, and equalizing beam includes little crossbeam and big crossbeam, and little crossbeam includes first little crossbeam and the little crossbeam of second, the below of first little crossbeam and the little crossbeam of second be equipped with big crossbeam and with first little crossbeam and the little crossbeam swing joint of second, be equipped with a plurality of couples on the big crossbeam and adjust the pole.