CN108273701B - Process of automatic production line equipment for processing paint on outer surface of radiator - Google Patents
Process of automatic production line equipment for processing paint on outer surface of radiator Download PDFInfo
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- CN108273701B CN108273701B CN201711291455.3A CN201711291455A CN108273701B CN 108273701 B CN108273701 B CN 108273701B CN 201711291455 A CN201711291455 A CN 201711291455A CN 108273701 B CN108273701 B CN 108273701B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/09—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles
- B05C3/10—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles the articles being moved through the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0209—Multistage baking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
- Coating Apparatus (AREA)
Abstract
A process for using automatic production line equipment for processing outer surface paint of a radiator is characterized in that the process of automatic control is as follows: a CNC program is coded according to the ID codes of the workpieces, the transmission speed is 8-12 m/min, and the process time beat of the single-group workpieces at the stations is 5-8 min; automatically feeding the workpiece into a priming paint coating chamber, jacking a priming paint groove, and pausing for 10-15 seconds; the method comprises the following steps of falling back a paint groove, controlling paint for 4-5 min, feeding workpieces into an appearance inspection and local defect treatment area, controlling paint and dropping paint nodules, collecting and drying according to process beats and station conditions, feeding a plurality of groups of workpieces into a preheating chamber successively to enable a paint film to be stable, controlling the temperature to be 40-50 degrees and controlling the paint to be self-dried for 25-30 min, and feeding the workpieces into a drying chamber in batches at the temperature of 70-80 degrees and controlling the temperature to be 25-30 min; and finishing off-line coating according to the ID code of the workpiece or circularly returning to a priming paint station. The online process metronome effectively solves the contradiction that the process of a single piece has long time and short time.
Description
Technical Field
The invention relates to the field of processing, in particular to automatic production line equipment and a process for processing surface paint of a radiator for a high-voltage transformer.
Background
At present, the surface paint treatment process for manufacturing the radiator for the high-voltage and ultrahigh-voltage transformer adopts a non-online step-by-step and sectional treatment process mode. This is because the exterior coating used for the radiator is adapted to the requirements of various use environments and various climatic conditions. Therefore, the existing coating has complicated and diversified structure, diversified coatings and diversified requirements of end users. Therefore, the existing production process is relatively complex, the existing production equipment and process in the industry can not meet and solve the requirement of the existing coating production on environmental control, and particularly, the improvement of the product quality and the production efficiency is an industry difficult problem which is needed to be solved urgently. The disadvantages of the existing production mode are:
1) the turnover time of the workpiece is long, and the working efficiency is influenced;
2) in open or semi-open production operation, the odor emission condition of the diluent is difficult to control;
3) 2 pieces of centralized drying mode is adopted, and the paint film is inevitably damaged in the hoisting process because the paint film is not solidified;
4) in the surface drying process of the workpiece, a large amount of space is occupied;
5) when the coating diversity process changes, the production operation is difficult to adapt.
In conclusion, a highly adaptable process scheme and supporting equipment are needed to meet the requirement of the coating operation of the exterior paint of the product.
Disclosure of Invention
The invention aims to provide a process for processing the outer surface paint of a radiator by using automatic production line equipment, and workpieces can be online and circularly finished with various primer and finish paints according to the requirements of a coating process.
The process of the automatic production line equipment for processing the paint on the outer surface of the radiator comprises a production flow control center host, a workpiece transmission system and a painting device, and is characterized in that the automatic production line equipment comprises the following steps: the top of the workshop is provided with a transmission system which is provided with a power control center, a transmission guide rail, a transmission chain, a workpiece carrying vehicle, a lifter and an automatic bifurcation line switching device, wherein an automatic identification scanning system is arranged in front of the automatic bifurcation line switching device of the transmission guide rail; the ground below the transmission system is provided with various chambers, an automatic paint dipping device, a paint preparation and supply system pipeline, an automatic paint spraying device, an online placing and surface drying station, an online collecting and discharging pre-drying chamber, an online collecting and discharging drying chamber and a paint quality detection area are arranged according to the process sequence, a tail gas air channel is arranged in parallel with the transmission system, and a suction port is arranged above each station and communicated with a tail gas recovery automatic processing center; the waste heat recovery device is connected with a hot water pump system through a gas-water exchanger to supply heat to the heat dissipation device in the production process chamber so as to meet the process temperature; after the workpiece is processed according to the process requirement before painting, the process of the online automatic production line for processing the outer surface paint comprises the following steps: according to the process information of the coating structure in the initial ID code of the workpiece, a production flow control center host gives the ID code of the corresponding workpiece to a workpiece carrier vehicle on a transmission chain at the beginning, hangs the workpiece and determines a transmission line and a transmission speed of the workpiece carrier vehicle; the single-piece process time of each station is 5-8 minutes, and the transmission running speed of the production line is controlled to be 8-12 m/min; a single workpiece is sent into an automatic paint dipping device chamber of a priming paint coating process, the workpiece is in place to send a signal, a switch is automatically started, a paint dipping tank is automatically lifted, the workpiece is completely dipped into paint, the time is kept for 10-15 seconds, the paint dipping tank falls back, the paint is controlled for 4-5 minutes, and the workpiece is sent to an appearance inspection station and a local defect station to be subjected to paint control and paint dripping lump treatment; the method comprises the following steps that workpieces subjected to product appearance inspection and local defect treatment enter an online placing and surface drying station according to a process beat, then a plurality of groups of workpieces automatically enter an online collecting and placing type pre-drying chamber in sequence, the temperature of the pre-drying chamber is 40-50 degrees for 20-30 minutes, a paint film is gradually heated up and heated, then the workpieces enter the online collecting and placing type drying chamber, the temperature is 70-80 degrees, the workpieces are sequentially dried for 25-30 minutes, and finally the workpieces are dried for 50-60 minutes; after the process conditions are met, the workpieces are taken out of the online centralized drying chamber and enter a circulating priming paint or finish paint coating line, through the automatic identification scanning system and the ID code process information of the workpiece carrier vehicle, the host sends an instruction to the transmission system to drive the workpiece carrier vehicle to return to the initial workpiece loading position or advance in the finish paint line under the action of the bifurcation conversion device, after the painting is finished, the ID code process information of the workpiece carrier vehicle is read through the automatic identification scanning system, and the transmission system drives the workpiece carrier vehicle to be transmitted to a workpiece unloading area or to be coated circularly.
The invention has the advantages that:
the on-line production mode of the gilled radiator surface paint for the transformer, which is provided by the technology of the invention, comprises the following steps:
1) the process information is integrated, a production flow control center host instructs a workpiece carrier vehicle to automatically move in a process route according to the ID process code of the workpiece, the workpiece carrier vehicle is specified in a production process according to a program to be processed, an automatic branch line switching device is arranged on a transmission route, the workpiece carrier vehicle can be divided or combined when reaching the set process on the transmission route, and the workpiece carrier vehicles can be collectively placed in a process interval.
2) The whole production process of the surface paint of the radiator is completed in an online process metronomic mode, and workpieces do not need to be off-line and produced step by step.
3) By means of the mode of loading and placing the workpieces in a centralized manner, the single piece processing time in the process placing is prolonged, the contradiction that the single piece processing time is long and the production process time is short is effectively solved, and the production process time on the whole production line can achieve the production efficiency of 5-8 minutes.
4) The production equipment is arranged according to the process flow, the same treatment process is adopted for the primer and the finish on an automatic production line for online radiator surface paint processing, the primer and finish processes can share an appearance inspection and local defect treatment station, a tail gas recovery treatment center, an online collection and discharge type pre-drying chamber, an online collection and discharge type drying chamber and a paint quality detection area on line, the space, facilities and heat energy are effectively utilized, the use efficiency of the production line is improved, and the effective utilization rate of workshop facilities is improved.
5) Meets the requirements of painting process of various paints and multi-coating systems.
6) And a tail gas recovery air channel is arranged in parallel with the production line, and the air conveying quantity is adjusted by a sensor to enable the workshop operation environment to reach the standard.
7) The conveying path is provided with an automatic bifurcation line-changing device, an automatic identification scanning system and a control center for issuing instructions, and the conveying system drives the workpiece carrier vehicle to branch or close in different paths, so that various painting process requirements of the workpiece are realized.
Drawings
FIG. 1 is a process diagram of an automated production line for the finishing of radiator surface paint;
FIG. 2 is a schematic view of a tail gas recovery plant setup;
fig. 3 is a schematic block diagram of a waste heat recovery apparatus.
Detailed Description
The automatic production line equipment for processing the outer surface paint of the radiator used in the online production process comprises a production flow control center host, a workpiece transmission system and a painting device, and is characterized in that the transmission system is arranged at the top of a workshop and is provided with a power control center, a transmission guide rail, a transmission chain, a workpiece carrying vehicle, a lifter and an automatic bifurcation transferring device, wherein an automatic identification scanning system is arranged in front of the automatic bifurcation transferring device of the transmission guide rail; the ground below the transmission system is provided with various chambers, an automatic paint dipping device, a paint preparation and supply system pipeline are arranged according to the process sequence to be communicated with an automatic paint spraying device, appearance inspection and local defect stations, an online collection and discharge type pre-drying chamber, an online collection and discharge type drying chamber and a paint quality detection area, a tail gas air channel is arranged in parallel with the transmission system, and a suction port is arranged above each station and communicated with a tail gas recovery automatic processing center; and a heat recovery device: the heating furnace is sequentially connected with a primary dust settling device, a drying chamber radiating tube, a secondary dust removal device and a waste heat recoverer through a hot air pipeline, and the waste heat recoverer is connected with a hot water pump system through an air-water exchanger to supply heat to the radiating device in the production process chamber so as to meet the process temperature.
The automatic production line process for online outer surface paint processing of the radiator comprises the following steps: after the workpieces are processed according to the process requirements before painting, according to the process information of the coating structure in the initial ID code of the workpieces, a production flow control center host gives the ID code of the corresponding workpiece to a workpiece carrier vehicle at the workpiece position at the starting position of a transmission chain, hangs the workpieces and determines the transmission line and the transmission speed of the workpiece carrier vehicle; when the transmission system drives the workpiece carrier vehicle to pass through, the automatic identification scanning system in front of the automatic bifurcation line switching device reads the ID code information of the workpiece carrier vehicle and feeds the ID code information back to the host, and the host sends an instruction to the transmission system to enable the workpiece carrier vehicle to branch or close to corresponding stations according to process requirements. Before painting, a worker at a station operates a lifter to enable a workpiece to be changed from a vertical long direction to a horizontal direction, a hook is hung for keeping, the process time beat of each station for a single workpiece is 5-8 minutes, and the transmission running speed of a production line is controlled to be 8-12 m/min; workpieces are automatically conveyed to a priming station at intervals, a single workpiece is conveyed into an automatic paint dipping device chamber of a priming process, the workpiece is in place and sends a signal, a paint dipping tank is automatically lifted, the workpiece is completely dipped into paint, the time is kept for 10-15 seconds, the paint dipping tank falls back, the paint is controlled for 4-5 minutes, and the workpiece is conveyed into an appearance inspection station and a local defect station for paint control and paint dripping lump treatment; the method comprises the following steps that workpieces subjected to product appearance inspection enter an online placing and surface drying station according to process beats, then a plurality of groups of workpieces automatically enter an online collecting and placing type pre-drying chamber in sequence, preheating is carried out according to an initially set process code, the temperature of the pre-drying chamber is 40-50 degrees and 20-30 minutes, a paint film is gradually heated up and heated, the workpieces enter the online collecting and placing type drying chamber, products are placed in a concentrated mode in the drying process, space and heat energy are fully utilized, the temperature is 70-80 degrees, drying is carried out for 25-30 minutes in sequence, and finally drying is carried out for 50-60 minutes; and (4) after meeting the process conditions, taking the workpiece out of the online collection and discharge type drying chamber, entering a painting quality detection zone for product painting detection or circularly returning to paint primer or finish again, and finishing the workpiece off-line according to the process procedures.
The automatic finish production line is characterized in that an automatic identification scanning system reads the process information of an ID code of a workpiece carrier vehicle, a host sends an instruction, the workpiece with the primer finished is sent to a paint spraying station of the finish production line, the running speed of the workpiece is 8 m/min, and the process beat is 10 min. The conveying system drives the workpiece carrier vehicle and the workpiece to enter an automatic paint spraying device chamber for coating finish paint, paint required by an ID code process is sprayed, the paint is prepared by a paint preparation and supply center in the figure 1, the paint is coated on the workpiece through an electric diaphragm pump, a paint spraying groove, a connecting hose, a spray head and the like, the paint flowing from the workpiece flows back to a paint supply tank through a confluence box and a pipeline of a groove body, then the electric diaphragm pump sprays the paint onto the workpiece through the pipeline, the spray head and the like, and the process is repeated to cover the workpiece with the paint. If the paint is insufficient, the prepared paint in the standby paint can is used, and the valve is switched to send the paint into the paint storage can or the paint supply can. And (2) after finishing paint is coated on the workpiece, moving the workpiece to a common appearance inspection and local defect treatment station, performing paint control and paint dripping bump treatment, and performing self-drying paint control after the workpiece is coated with paint in figure 1. And the existing appearance defects are timely checked and processed in the paint control process. 2. The workpieces are qualified in inspection and repair, the workpieces are automatically conveyed to the next on-line placing and surface drying station within the beat according to the process codes of the workpieces, then a plurality of groups of workpieces automatically enter an on-line centralized-placing type pre-drying chamber in sequence, the temperature of the pre-drying chamber is 40-50 degrees and 20-30 minutes, the paint film is gradually heated up and heated, after the pre-drying process time is met, the workpieces enter an on-line centralized-placing type drying chamber, the drying temperature is 70-80 degrees, the sequential drying is 25-30 minutes, and finally the drying is 50-60 minutes.
In fig. 1, the line-dividing arrows are divided into primer lines or finish lines in the continuous circulation after leaving the drying chamber, the primer lines return to the initial workpiece-loading position, the finish lines enter the manual painting and the automatic painting, pass through the automatic identification scanning system and the process ID code information on the workpiece-loading vehicle, and the host sends an instruction to the transmission system to drive the workpiece-loading vehicle to travel on different paths under the action of the automatic bifurcation line-switching device. After the process coating is finished, the process ID code information is read through the automatic identification scanning system, and the transmission system drives the workpiece carrier vehicle to transmit to a workpiece discharging area or circularly coat paint.
The workpieces finished with paint are different in process requirements, such as: the production time of each product is 30-50 minutes, the production takt time of the working procedure is 5-8 minutes, and in order to solve the problem, a vehicle loading and collecting mode is adopted. When the workpieces move to the pre-drying station and the drying station, an online collection and placement mode is adopted, namely, the production process takt time of a plurality of workpieces is accumulated to meet the drying process time, for example, the single workpiece takt time is 5-8 minutes, the process time of collecting and placing 10 workpieces is 50-80 minutes, the drying process time is met after accumulation, and the sequence of the single workpiece is changed according to the production takt time of the process of 5-8 minutes. Therefore, the drying process time of the workpieces is met, the production takt of the drying process is met, the workpieces can be produced on line on a transmission line according to the program setting, and the production efficiency is greatly improved.
Equipment function of finish paint production line for realizing multi-paint multi-color coating process
Because the finish paint color and the variety that the customer required are more, finish paint automatic production line sets up automatic cleaning system, drenches the lacquer cell body bottom and has the plastic sheath, and after the completion of work piece batch coating, through pipeline valve control, the plastic sheath, pipeline, electronic diaphragm pump and the automatic lacquer system of drenching in the finish paint groove are washd with the diluent, and the diluent is retrieved and is clarified in storing up the lacquer jar. When the paint pouring groove and the system are reused, other types or colors of finish paint can be used, and the requirements of different customers on the finish paint are met. The finish paint automatic paint spraying system can meet the automatic coating on-line production of various finishes and multi-color finishes.
The paint preparation and supply system comprises: referring to fig. 1, a solvent paint storage tank and a water paint storage tank are arranged, a metal corrugated telescopic volume compensation device and a pipeline communicated automatic paint dipping device are arranged on the paint storage tanks, and an automatic lifting device is arranged at the bottom of a paint dipping groove of the automatic paint dipping device and is hydraulically driven by an automatic control device; the paint mixing and supplying system comprises a paint mixing tank, a paint supplying tank, an automatic paint spraying device and a diluent tank of an automatic cleaning system, which are communicated by a pipeline and a valve, and the paint mixing tank is communicated with the paint supplying tank, the electric diaphragm pump and the automatic paint spraying device through the pipeline and the valve during paint supplying; in the paint spraying process, paint flowing down from the workpiece returns to the paint tank through the paint spraying groove and the pipeline for recycling. The automatic cleaning configuration of the paint preparation and supply system is that a paint mixing tank is communicated with a paint supply tank, an electric diaphragm pump, an automatic paint spraying device and a diluent tank through a pipeline and a valve; and (3) closing a diluent tank valve during paint spraying, switching pipelines after the class construction is finished, and cleaning the pipelines, the diaphragm pump and the tank body by using the diluent. During cleaning, an outlet valve of the diluent tank is connected with an electric diaphragm pump and then enters a paint spraying groove for cleaning, the outlet valve returns to the paint mixing tank through an automatic paint spraying device, finally, cleaning liquid returns to the diluent tank for precipitation, clear liquid is treated in a distillation mode, and distilled diluent is recycled.
The automatic production line tail gas treatment center of radiator surface paint, as shown in figure 1, has the operation state: 1. and opening the equipment before starting work. The equipment carries out air supply and air suction processing on the working space at regular time according to the parameters initially set. 2. The induction probe in the workpiece space monitors the viscosity of the paint on line, and increases or decreases the air volume of air supply and air suction according to the concentration condition of the diluent, so that the online automatic control is realized. 3. And recovering tail gas in construction. Through measures such as adsorption, desorption, catalysis and combustion, substances in the tail gas are combusted and changed into water and carbon dioxide to be discharged. 4. Two processing devices are provided. The first one is standby, the second one is treated, the cycle work is realized, the on-line treatment of tail gas is realized, and the emission reaches the environmental protection standard. The used equipment is characterized in that tail gas recovery processing equipment, shown in figure 2, is provided with two active carbon adsorbers V1011A/B and two dry filters G1011A/B as main equipment, storage and processing are alternately carried out, a pipeline and an air suction fan are arranged to communicate painting, paint control and paint replenishing stations, and the air suction fan is additionally arranged in a paint dipping chamber, a pre-drying chamber and a drying chamber; workshop VOCs waste gas enters an activated carbon adsorber V1011A/B through a dry filter G1011A/B and then enters a catalytic combustor C1011 through a flame arrester Z1011 and a desorption fan F2011, a supplement air cooler F3011 is further arranged in the treatment system, the generated gas which does not accord with the emission standard enters the activated carbon adsorber again, and finally the qualified harmless gas is discharged into the atmosphere through a main fan F1011.
And (3) heat recovery setting: the heating furnace is sequentially connected with a primary dust falling device, a drying chamber, a cloth bag secondary dust removing device and a waste heat recoverer through a hot air pipeline, the waste heat recoverer is connected with a hot water pump system through a gas-water exchanger to supply heat for a heat dissipation device in a production process chamber to meet the process temperature, and the residual heat is fully utilized. The combustor utilizes the burning of environmental protection fuel to produce the hot-air, and the hot-air distributes in the drying chamber with the heat when the cooling tube in the cooling tube is sent into to heat preservation type one-level dust device in, then the hot-air gets into the dust filtration of sack second grade dust collector in with the hot-air through the pipeline under second grade dust collector's draught fan. The filtered hot air enters the pipeline of the water-gas exchanger under the thrust of the draught fan, the residual heat of the hot air enables water in the water-gas exchanger to absorb heat and rise the temperature, the hot water in the water-gas exchanger is conveyed into a heating pipeline in a workshop site by a water pump, and the workshop site temperature can be increased when the temperature is low outdoors.
Claims (7)
1. The process of the automatic production line equipment for processing the outer surface paint of the radiator comprises a production flow control center host, a workpiece transmission system and a painting device, and is characterized in that the automatic production line equipment comprises: the top of the workshop is provided with a transmission system which is provided with a power control center, a transmission guide rail, a transmission chain, a workpiece carrying vehicle, a lifter and an automatic bifurcation line switching device, wherein an automatic identification scanning system is arranged in front of the automatic bifurcation line switching device of the transmission guide rail; the ground below the transmission system is provided with various chambers, an automatic paint dipping device, a paint preparation and supply system pipeline, an automatic paint spraying device, an online placing and surface drying station, an online collecting and discharging pre-drying chamber, an online collecting and discharging drying chamber and a paint quality detection area are arranged according to the process sequence, a tail gas air channel is arranged in parallel with the transmission system, and a suction port is arranged above each station and communicated with a tail gas recovery automatic processing center; the waste heat recovery device is connected with a hot water pump system through a gas-water exchanger to supply heat to the heat dissipation device in the production process chamber so as to meet the process temperature; after the workpiece is processed according to the process requirement before painting, the process of the online automatic production line for processing the outer surface paint comprises the following steps: according to the process information of the coating structure in the initial ID code of the workpiece, a production flow control center host gives the ID code of the corresponding workpiece to a workpiece carrier vehicle on a transmission chain at the beginning, hangs the workpiece and determines a transmission line and a transmission speed of the workpiece carrier vehicle; the single-piece process time of each station is 5-8 minutes, and the transmission running speed of the production line is controlled to be 8-12 m/min; a single workpiece is sent into an automatic paint dipping device chamber of a priming paint coating process, the workpiece is in place to send a signal, a switch is automatically started, a paint dipping tank is automatically lifted, the workpiece is completely dipped into paint, the time is kept for 10-15 seconds, the paint dipping tank falls back, the paint is controlled for 4-5 minutes, and the workpiece is sent to an appearance inspection station and a local defect station to be subjected to paint control and paint dripping lump treatment; the method comprises the following steps that workpieces subjected to product appearance inspection and local defect treatment enter an online placing and surface drying station according to a process beat, then a plurality of groups of workpieces automatically enter an online collecting and placing type pre-drying chamber in sequence, the temperature of the pre-drying chamber is 40-50 degrees for 20-30 minutes, a paint film is gradually heated up and heated, then the workpieces enter the online collecting and placing type drying chamber, the temperature is 70-80 degrees, the workpieces are sequentially dried for 25-30 minutes, and finally the workpieces are dried for 50-60 minutes; after the process conditions are met, the workpieces are taken out of the online centralized drying chamber and enter a circulating priming paint or finish paint coating line, through the automatic identification scanning system and the ID code process information of the workpiece carrier vehicle, the host sends an instruction to the transmission system to drive the workpiece carrier vehicle to return to the initial workpiece loading position or advance in the finish paint line under the action of the bifurcation conversion device, after the painting is finished, the ID code process information of the workpiece carrier vehicle is read through the automatic identification scanning system, and the transmission system drives the workpiece carrier vehicle to be transmitted to a workpiece unloading area or to be coated circularly.
2. The process of claim 1, wherein the automatic production line equipment for the external surface paint processing of the radiator comprises an automatic exhaust gas recovery processing center: two activated carbon adsorbers and two dry filters are arranged as main equipment, storage and treatment are alternately carried out, a pipeline is arranged to be communicated with a paint suction fan to paint, control and repair stations, and the air suction fan is additionally arranged in a paint dipping chamber, a pre-drying chamber and a drying chamber; workshop waste gas enters the activated carbon adsorber through the dry filter and then enters the catalytic combustor through the flame arrester and the desorption fan, the treatment system is also provided with a supplementary cooling fan, the generated gas which does not accord with the emission standard enters the activated carbon adsorber, and finally the qualified harmless gas is discharged into the atmosphere through the main fan.
3. The process of claim 1, wherein the automatic dip coating device is connected to the solvent paint storage tank and the water paint storage tank via pipelines, and the paint storage tank is provided with a metal corrugated expansion volume compensation device, and the bottom of the dip coating tank of the automatic dip coating device is provided with an automatic lifting device hydraulically driven by an automatic control device; the paint mixing and supplying system comprises a paint mixing tank, a paint supplying tank, an automatic paint spraying device and a diluent tank of an automatic cleaning system, which are communicated by a pipeline and a valve, and the paint mixing tank is communicated with the paint supplying tank, the electric diaphragm pump and the automatic paint spraying device through the pipeline and the valve during paint supplying; in the paint spraying process, paint flowing down from the workpiece returns to the paint tank through the paint spraying groove and the pipeline for recycling.
4. The process of claim 3, wherein the automatic production line equipment for the external surface paint processing of the radiator comprises an automatic cleaning system of a paint preparation and supply system: the paint mixing tank is communicated with the paint supply tank, the electric diaphragm pump and the diluent tank through a pipeline and a valve; during cleaning, an outlet valve of the diluent tank is connected with an electric diaphragm pump and then enters a paint spraying groove for cleaning, the outlet valve returns to the paint mixing tank through an automatic paint spraying device, finally, cleaning liquid returns to the diluent tank for precipitation, clear liquid is treated in a distillation mode, and distilled diluent is recycled.
5. The process of claim 1, wherein the speed of the automatic finish production line is 8 m/min, and the process cycle is 10 min; the conveying system drives the workpiece carrier vehicle and the workpiece to enter an automatic paint spraying device chamber for coating finish paint, paint required by an ID code process is sprayed, paint prepared in a paint preparation and supply center passes through an electric diaphragm pump, a paint spraying groove, a connecting hose and a spray head, the paint is coated on the workpiece, the paint flowing down from the workpiece flows back into a paint supply tank through a confluence box and a pipeline of a tank body, and the process is repeated to cover the workpiece with the paint; after finishing paint is coated on the workpieces, the workpieces move to a common appearance inspection and defect treatment station, paint control and paint dropping beading treatment and local repair are carried out, the workpieces are transferred to the next on-line placing and surface drying station according to the process beat, then a plurality of groups of workpieces automatically enter an on-line collection and discharge type pre-drying chamber and an on-line collection and discharge type drying chamber in sequence, the drying temperature is 70-80 degrees, the workpieces are dried for 25-30 minutes in sequence, and finally the workpieces are dried for 50-60 minutes.
6. The process of claim 1, wherein the same treatment process is used for the primer and the finish on the production line, and the primer and the finish can share an appearance inspection and defect treatment station, a tail gas recovery treatment center, an online collection and discharge type pre-drying chamber and an online collection and discharge type drying chamber on line; the automatic bifurcation line-switching device enables the workpiece carrier vehicle to branch or close to the corresponding stations on the transmission guide rail according to the process requirements.
7. The process of claim 1, wherein the pre-drying station and the drying station are integrated on-line, the tact time of each single work is 5-8 minutes, and the tact time of 10 work pieces is accumulated to meet the requirement of 50-80 minutes for drying process.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112275585A (en) * | 2020-10-30 | 2021-01-29 | 保定新胜冷却设备有限公司 | Water-based paint curtain coating process for finned radiator for transformer |
| CN113663864A (en) * | 2021-09-27 | 2021-11-19 | 江苏宏华电子科技有限公司 | Paint dip-dyeing tank with draining function for manufacturing hardware materials |
| CN114367406B (en) * | 2022-01-12 | 2023-06-16 | 浙江尔格科技股份有限公司 | Automatic control system and control method for radiator paint production line for transformer |
| CN114740925B (en) * | 2022-04-20 | 2024-03-15 | 中国电子科技集团公司第三十八研究所 | Off-line control method for internal water vapor of electronic device |
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