CN116351627B - Automatic spraying production line - Google Patents
Automatic spraying production line Download PDFInfo
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- CN116351627B CN116351627B CN202310627844.8A CN202310627844A CN116351627B CN 116351627 B CN116351627 B CN 116351627B CN 202310627844 A CN202310627844 A CN 202310627844A CN 116351627 B CN116351627 B CN 116351627B
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- 238000005507 spraying Methods 0.000 title claims abstract description 144
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000001723 curing Methods 0.000 claims description 35
- 238000011416 infrared curing Methods 0.000 claims description 23
- 238000004458 analytical method Methods 0.000 claims description 17
- 238000004886 process control Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000012549 training Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 6
- 230000006399 behavior Effects 0.000 claims description 4
- 238000013136 deep learning model Methods 0.000 claims description 4
- 238000010801 machine learning Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 5
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0264—Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
-
- 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
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0227—Pretreatment, e.g. heating the substrate with IR heaters
-
- 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
- B05D3/04—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 exposure to gases
- B05D3/0406—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 exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- 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
- B05D3/06—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 exposure to radiation
-
- 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
- B05D3/06—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 exposure to radiation
- B05D3/061—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 exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention relates to the technical field of spraying, in particular to an automatic spraying production line which improves the degree of automation and the process level of the whole production line and is convenient for automatically controlling the spraying process of workpieces; comprising the following steps: the spraying device comprises a spraying room and a conveying device, wherein the conveying device is installed in the spraying room in a winding closed loop manner, a feeding area is arranged at the edge of the spraying room, a preheating channel, an electrostatic dust removal chamber and a leveling chamber are sequentially arranged at the downstream of the feeding area, and the preheating channel is used for carrying out heating treatment on a workpiece before spraying; the electrostatic dust removal chamber is used for removing dust and impurities on the surface of the workpiece before spraying; the leveling chamber is used for applying preset pressure and speed to the coating on the surface of the workpiece after spraying so as to enable the surface of the coating to perform automatic leveling behavior; and the spraying device is arranged between the electrostatic dust collection chamber and the leveling chamber and is used for spraying workpieces flowing through the spraying device.
Description
Technical Field
The invention relates to the technical field of spraying, in particular to an automatic spraying production line.
Background
The spraying production line is an automatic production line for coating and spraying products, and can be widely applied to manufacturing industries including industries of automobiles, aerospace, buildings, home furnishings, electric appliances and the like, and is used for improving production efficiency, controlling product quality and reducing production cost.
In the production process of the spraying production line, the spraying field is complex, the quality and the technological parameters of the coating often have great influence on the quality of the coating, so that the technological parameters are required to be manually intervened and adjusted, the technical content of the existing spraying production line is low, and a more advanced automatic control technology is lacked.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic spraying production line which improves the degree of automation and the technological level of the whole production line and is convenient for automatically controlling the spraying process of workpieces.
The invention relates to an automatic spraying production line, which comprises the following steps:
the spraying device comprises a spraying room and a conveying device, wherein the conveying device is installed in the spraying room in a winding closed loop manner, a feeding area is arranged at the edge of the spraying room, a preheating channel, an electrostatic dust removal chamber and a leveling chamber are sequentially arranged at the downstream of the feeding area, and the preheating channel is used for heating a workpiece before spraying; the electrostatic dust removal chamber is used for removing dust and impurities on the surface of the workpiece before spraying; the leveling chamber is used for applying preset pressure and speed to the coating on the surface of the workpiece after spraying so as to enable the surface of the coating to perform automatic leveling behavior;
the spraying device is arranged between the electrostatic dust collection chamber and the leveling chamber and is used for spraying a workpiece flowing through the spraying device;
The infrared curing device and the ultraviolet curing device are arranged at the downstream of the leveling chamber, a plurality of infrared lamps are arranged in the infrared curing device along a workpiece moving route, a plurality of ultraviolet lamps are arranged in the ultraviolet curing device along the workpiece moving route, and the infrared curing device and the ultraviolet curing device are both used for curing a workpiece coating after spraying;
The control module is used for controlling and adjusting the conveying device, the preheating channel, the electrostatic dust collection chamber, the spraying device, the leveling chamber, the infrared curing device and the ultraviolet curing device according to workpiece processing requirements.
Further, the control module automatically sprays the workpiece by the following method:
Acquiring workpiece data and spraying requirements;
performing digital conversion on the spraying requirements to obtain spraying characteristics;
Extracting workpiece features in workpiece data;
Analyzing workpiece features and spraying features by using a pre-trained spraying process control analysis model and outputting control parameters;
and respectively controlling the conveying device, the preheating channel, the electrostatic dust collection chamber, the spraying device, the leveling chamber, the infrared curing device and the ultraviolet curing device in real time according to the control parameters.
Further, the construction method of the spraying process control analysis model comprises the following steps:
collecting original data of past spraying operation;
preprocessing the collected original data;
Extracting workpiece features and spraying features of the production line from the preprocessed data;
selecting a deep learning model as a model frame of a spraying process control analysis model;
dividing the extracted workpiece features and spraying features into training data and verification data;
training and verifying the spraying process control analysis model by using the training data and the verification data respectively, and repeatedly adjusting and optimizing the model according to the actual spraying result.
Further, the workpiece features comprise size, material, color and coating thickness, and the spraying features comprise spraying angle and spraying pressure of a spraying room, moving speed of a conveying device, preheating time and preheating power of a preheating channel, electrostatic strength of an electrostatic dust collection chamber, leveling pressure and leveling speed of a leveling chamber, lamp source power and curing time of an infrared curing device and lamp source power and curing time of an ultraviolet curing device.
Further, the hanging tool on the conveying device comprises a hanging frame and a plurality of hanging material modules arranged on the hanging frame, the hanging material modules comprise base plates fixedly arranged on the hanging frame, bases are slidably arranged on the base plates, four mounting shafts are rotatably arranged on the bases, arc plates are fixedly arranged on each mounting shaft, and the four arc plates are in a circumferential array;
When a workpiece is hung, the four arc plates slide downwards along with the base, and the four arc plates synchronously rotate along the axis of the installation shaft where the four arc plates are positioned until the outer arc walls of the four arc plates are kept concentric;
After the workpiece is hung, the four arc plates rise along with the base, and the four arc plates synchronously rotate reversely along the axis of the mounting shaft where the four arc plates are positioned until the corners of the four arc plates are propped against the inner wall of the hanging hole of the workpiece.
Further, the corners of the arc plates are provided with sharp edges.
Further, the end part of the installation shaft extending into the base is coaxially sleeved with a first gear, the base is rotatably provided with a driving shaft, the driving shaft is sleeved with a second gear, and the second gear is in meshed connection with the four first gears.
Further, a sliding groove is formed in the base plate in a penetrating mode, a sliding block is elastically installed in the sliding groove in a sliding mode, and the base is fixedly installed on the sliding block.
Further, the driving shaft rotates to pass through the sliding block, a third gear is sleeved on the outer wall of the circumference of the driving shaft passing through the sliding block, a rack is fixedly arranged on the base plate, and the third gear is meshed with the rack.
Further, a supporting column is coaxially and fixedly arranged on the base, a front guide column is fixedly arranged on the supporting column, the outer walls of the circular arcs of the four arc plates are concentric with the front guide column when kept concentric, and the diameter of a circle surrounded by the four arc plates is the same as the diameter of the front guide column.
Compared with the prior art, the invention has the beneficial effects that: through the collaborative operation of the device and the control of the control cabinet, the real-time control of the spraying production line can be effectively realized, the degree of automation and the process level of the whole production line are improved, the automatic control of the spraying process of the workpiece is facilitated, and the spraying efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a hanger;
FIG. 3 is an enlarged schematic view of the structure of the portion A in FIG. 2;
FIG. 4 is an enlarged schematic view of the construction of the hanging module;
FIG. 5 is an enlarged schematic view of the slide bar and spring structure;
FIG. 6 is a schematic view of the expansion of four arc plates while securing a workpiece;
FIG. 7 is a schematic drawing showing the shrinkage of four arc plates during workpiece loading;
FIG. 8 is an enlarged schematic view of the structure of the arc plate;
FIG. 9 is an enlarged schematic illustration of a structural connection of a third gear to a rack or the like;
FIG. 10 is an enlarged schematic illustration of a structural connection of a first gear with a second gear, etc.;
FIG. 11 is an exploded view of the structure of FIG. 10;
The reference numerals in the drawings: 1. a spraying room; 2. a conveying device; 3. a preheating passage; 4. an electrostatic dust collection chamber; 5. a spraying device; 6. a leveling chamber; 7. an infrared curing device; 8. an ultraviolet curing device; 9. a feeding area; 10. a hanging rack; 11. a hanging module; 12. a substrate; 13. a mounting column; 14. a mounting hole; 15. a base; 16. an arc plate; 17. a mounting shaft; 18. a support column; 19. a front guide post; 20. sharp edges; 21. a first gear; 22. a drive shaft; 23. a second gear; 24. a chute; 25. a slide block; 26. a slide bar; 27. a third gear; 28. a rack; 29. and (3) a spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as being "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, or may be internal communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. This example was written in a progressive manner.
As shown in fig. 1, an automatic spraying production line of the present invention includes:
The spraying device comprises a spraying room 1 and a conveying device 2, wherein the conveying device 2 is installed in the spraying room 1 in a winding and closed loop manner, a feeding area 9 is arranged at the edge of the spraying room 1, a preheating channel 3, an electrostatic dust removal chamber 4 and a leveling chamber 6 are sequentially arranged at the downstream of the feeding area 9, and the preheating channel 3 is used for carrying out heating treatment on a workpiece before spraying; the electrostatic dust removing chamber 4 is used for removing dust and impurities on the surface of the workpiece before spraying; the leveling chamber 6 is used for applying preset pressure and speed to the coating on the surface of the workpiece after spraying so as to enable the surface of the coating to perform automatic leveling behavior;
the spraying device 5 is arranged between the electrostatic dust collection chamber 4 and the leveling chamber 6, and the spraying device 5 is used for spraying workpieces flowing through the spraying device 5;
The infrared curing device 7 and the ultraviolet curing device 8 are arranged at the downstream of the leveling chamber 6, a plurality of infrared lamps are arranged in the infrared curing device 7 along the moving route of the workpiece, a plurality of ultraviolet lamps are arranged in the ultraviolet curing device 8 along the moving route of the workpiece, and the infrared curing device 7 and the ultraviolet curing device 8 are used for curing the coating of the workpiece after spraying;
the control module is used for controlling and adjusting the conveying device 2, the preheating channel 3, the electrostatic dust collection chamber 4, the spraying device 5, the leveling chamber 6, the infrared curing device 7 and the ultraviolet curing device 8 according to workpiece processing requirements.
Through the collaborative operation of the device and the control of the control cabinet, the real-time control of the spraying production line can be effectively realized, the degree of automation and the process level of the whole production line are improved, the automatic control of the spraying process of the workpiece is facilitated, and the spraying efficiency is improved.
Specifically, the conveying device is used for transferring the workpiece from one position to another, and a workpiece conveyor belt, an air cushion conveyor belt or the like is generally used, and the device can be manually operated or automatically controlled to meet the requirements of a production line; the preheating channel 3 is used for heating the workpiece before spraying so as to improve the adhesion capability and the spraying effect of the surface of the workpiece, and the device can use infrared rays, hot air and the like to perform heating operation; the electrostatic dust removal chamber 4 removes dust and impurities on the surface of the workpiece by an electrostatic dust removal principle so as to improve the adhesive force and quality of a coating on the surface of the workpiece and increase the adhesive capacity of the coating; the spraying device is a core component of a production line, the coating is uniformly sprayed onto the surface of a workpiece through the spraying heads, and different spraying heads can be selected by the spraying device according to different shapes of the workpiece so as to ensure uniformity and accuracy of the coating; the ultraviolet curing device 8 is used for curing the paint, and generally uses an ultraviolet light source, and uniformly irradiates the surface of the workpiece by using a light homogenizing machine, so that the coating is quickly cured, and the production period is reduced; the infrared curing device 7 is also used for curing of the coating, typically using infrared as energy source, the chemical reaction of which is slower than that of ultraviolet curing, typically for curing thick coatings; the leveling chamber 6 ensures the smoothness and flatness of the surface of the coating by applying proper pressure and speed to the coating to enable the surface of the coating to perform automatic leveling behavior; by arranging the conveying device 2 in the spray booth 1 in a meandering manner, the travel distance of the workpiece can be increased in a limited space, and it is possible to ensure that the workpiece has enough time to cure or leveling.
In order to realize real-time monitoring and feedback control of the workpiece spraying process, the control module automatically sprays the workpiece by the following method:
s1, acquiring workpiece data and spraying requirements;
The acquisition method adopts a manual measurement method, an automatic detection instrument method and a process file recording method; the production line workers manually measure the characteristics of the size, the thickness and the like of the workpiece and record the characteristics in a data system, but the method has the problems of larger measurement error, difficult data quality assurance and the like; the special automatic detection instrument is used for testing and detecting the workpiece, such as a 3D scanner, an X-ray detector, a nondestructive detector and the like, and has the advantages of accurate measurement result, high data quality, rapidness and stability; a complete process data recording system is established in the production line, and the process parameters and relevant workpiece characteristics in the production process are recorded in a process file, including materials, colors, sizes, thicknesses and the like, but the method is limited to providing useful data under the condition that the process parameters are recorded perfectly and the quality is ensured.
S2, carrying out digital conversion on the spraying requirements to obtain spraying characteristics;
In order to enable the literal spray requirements to be analyzed and processed by the spray process control analysis model, it is necessary to convert the spray requirements into a digital format that can be recognized by the spray process control analysis model, for example, the moving speed of the conveyor 2 in the spray requirements requires: 5 meters per minute, converted to "5m/min";
The spraying characteristics comprise the spraying angle and the spraying pressure of the spraying room 1, the moving speed of the conveying device 2, the preheating time and the preheating power of the preheating channel 3, the electrostatic strength of the electrostatic dust collection chamber 4, the leveling pressure and the leveling speed of the leveling chamber 6, the lamp power and the curing time of the infrared curing device 7 and the lamp power and the curing time of the ultraviolet curing device 8.
S3, extracting workpiece features in the workpiece data;
And extracting various characteristics of the production line, such as parameters of the size, the material, the color, the coating thickness and the like of the workpiece from the preprocessed data, and taking the parameters as the basis of subsequent analysis.
S4, analyzing workpiece features and spraying features by using a pre-trained spraying process control analysis model and outputting control parameters;
specifically, in applying the analysis model to reality, the method for constructing the spray process control analysis model includes:
S41, collecting original data of past spraying operation;
S42, preprocessing the collected original data so as to carry out modeling and simulation subsequently;
S43, extracting workpiece features and spraying features of the production line from the preprocessed data;
S44, selecting a deep learning model as a model frame of a spraying process control analysis model; selecting a proper machine learning algorithm according to each feature after feature extraction, and establishing a corresponding model frame such as a deep learning model, a regression model, a clustering model and the like;
s45, dividing the extracted workpiece features and spraying features into training data and verification data;
S46, training and verifying the spraying process control analysis model by using the training data and the verification data respectively, and repeatedly adjusting and optimizing the model according to the actual spraying result.
Through the process, the trained model is realized in an actual production line, new data are continuously collected according to actual spraying requirements, the model is updated and optimized, if defects are found in the model in actual application or algorithm accuracy and generalization capability need to be further improved, algorithm optimization can be carried out on the model, and more advanced machine learning technologies and algorithms such as reinforcement learning, migration learning and deep reinforcement learning are considered to be introduced.
S5, respectively controlling the conveying device 2, the preheating channel 3, the electrostatic dust collection chamber 4, the spraying device 5, the leveling chamber 6, the infrared curing device 7 and the ultraviolet curing device 8 in real time according to control parameters;
Specifically, the stable and smooth movement of the workpiece on the whole production line is ensured by controlling the running states of the conveyor belt, such as speed, stop, start and the like, the conveying control mainly comprises a PLC (programmable logic controller) and a motor driving module, and the running parameters are set through interface operation; the preheating control mainly comprises an infrared or hot air heater, a temperature controller, a temperature sensor and the like, and according to the set temperature, the power supply voltage of the heater is controlled to preheat a workpiece, and meanwhile, the temperature can be monitored and alarmed in real time through a feedback temperature sensor signal; the electrostatic dust collection controller is composed of a high-voltage electrostatic module, a power inverter module, a controller and the like, and the controller controls the high-voltage electrostatic module to switch through a feedback signal so as to realize electrostatic dust collection control on the surface of a workpiece; the spraying controller mainly comprises a spray gun control system and a control console, wherein the spray gun control system comprises air pressure control, valve control, hydraulic control and other modules; the operation table is required to be designed from the aspects of a man-machine interaction interface, a spray head tracking and self-adaptive control algorithm and the like so as to realize real-time control of spraying; the ultraviolet curing control realizes the starting and stopping of the lamp tube and the control of the brightness and time of the lamp tube through the ultraviolet lamp light source controller and the induction controller, and meanwhile, a high-voltage transformer, a sensor and a feedback loop are also required to be arranged for monitoring and controlling the lamp tube; the infrared curing controller mainly needs to control the heating process of two stages of temperature rise and constant temperature, and equipment such as a constant temperature controller, a temperature sensor, a temperature rise controller and the like can be needed to control the time and the temperature of the infrared curing process; the leveling control generally consists of a servo motor, a sensor, a control module and the like, and based on a leveling algorithm, the uniform flow control of the spraying liquid is realized so as to ensure the smoothness of the surface of the workpiece.
In the actual spraying process, the workpiece can have adverse effect on the spraying effect relative to the hanger, the workpiece can cause uneven applying pressure of spraying due to the shaking of the workpiece, the spraying position is inaccurate, the coating quality is unstable, and accordingly the coating quality is reduced, and defects such as missing coating, sagging, air bubbles and the like are caused. Therefore, as shown in fig. 2 to 11, the hanger suitable for the production line comprises a hanger 10 and a plurality of hanging material modules 11 arranged on the hanger 10, wherein the hanging material modules 11 comprise a base plate 12 fixedly arranged on the hanger 10, a base 15 is slidably arranged on the base plate 12, four mounting shafts 17 are rotatably arranged on the base 15, arc plates 16 are fixedly arranged on each mounting shaft 17, and the four arc plates 16 are in a circumferential array;
specifically, the mounting posts 13 with abnormal sections are arranged on the hanging rack 10, the mounting holes 14 are arranged on the base plate 12 corresponding to the mounting posts 13, and the base plate 12 is synchronously arranged on the hanging rack 10 by means of the mounting holes 14, so that the base plate 12 can be conveniently detached and replaced, and meanwhile, the base plate 12 can be prevented from swinging relatively on the hanging rack 10;
Specifically, when a workpiece is hung, the four arc plates 16 slide downwards along the base 15, the four arc plates 16 synchronously rotate along the axis of the mounting shaft 17 where the four arc plates 16 are positioned until the outer arc walls of the four arc plates 16 are kept concentric, as shown in fig. 7, and at the moment, the workpiece hanging hole is sleeved on a cylinder formed by the four arc plates 16;
After the workpiece is hung, the four arc plates 16 rise along with the base 15, and the four arc plates 16 synchronously rotate reversely along the axis of the mounting shaft 17 where the four arc plates 16 are positioned until the corners of the four arc plates 16 are propped against the inner wall of the workpiece hanging hole, as shown in fig. 6, and at the moment, under the extrusion action of the four arc plates 16, the workpiece can be prevented from shaking in the spraying process.
In order to reduce the possibility of relative sliding between the corner of the arc plate 16 and the arc plate 16, as shown in fig. 8, the corner of the arc plate 16 is provided with an acute angle edge 20, and by setting the acute angle edge 20, the contact area between the arc plate 16 and the inner wall of the arc plate 16 is reduced, and under the condition that the pressure is unchanged, the pressure between the arc plate 16 and the inner wall of the arc plate is increased, so that the workpiece is more stable.
In particular, how to control the four groups of installation shafts 17 to rotate synchronously, as shown in fig. 8 to 11, the end part of the installation shaft 17 extending into the base 15 is coaxially sleeved with a first gear 21, a driving shaft 22 is rotatably installed on the base 15, a second gear 23 is sleeved on the driving shaft 22, and the second gear 23 is in meshed connection with the four first gears 21; by driving the driving shaft 22 to rotate, the four sets of mounting shafts 17 can be controlled to rotate synchronously.
How the base 15 is mounted on the base plate 12, as shown in fig. 4, 5 and 9, a chute 24 is penetrated through the base plate 12, a sliding block 25 is slidably mounted in the chute 24, the base 15 is fixedly mounted on the sliding block 25, a spring 29 is mounted between the bottom end of the sliding block 25 and the bottom end of the chute 24, and the spring 29 is always kept in a compressed state; through the above arrangement, under the action of no external force, the base 15 is lifted to the highest point under the action of the elastic force of the spring 29, and at this time, the four arc plates 16 should synchronously rotate outwards.
More specifically, a slide bar 26 is fixedly arranged in the slide groove 24, and a slide block 25 is sleeved on the slide bar 26 in a sliding way; through setting up slide bar 26, can carry out accurate direction to the slip of slider 25, promote the stability of equipment operation.
In order to ensure that the four arc plates 16 synchronously rotate inwards in the descending process along with the base 15, the driving shaft 22 rotates to pass through the sliding block 25, a third gear 27 is sleeved on the circumferential outer wall of the driving shaft 22 passing through the sliding block 25, a rack 28 is fixedly arranged on the base plate 12, and the third gear 27 is in meshed connection with the rack 28; namely, when the slide block 25 moves upwards, under the meshing action of the rack 28 and the third gear 27, the rack 28 is driven to rotate clockwise, so that the second gear 23 drives the four groups of first gears 21 to rotate anticlockwise synchronously, and further drives the four arc plates 16 to rotate anticlockwise, and the corners of the four arc plates 16 are pressed on the hanging hole; when the slide block 25 moves downwards, the rack 28 rotates anticlockwise, so that the second gear 23 drives the four groups of first gears 21 to rotate clockwise until the circular arc outer walls of the four arc plates 16 are kept concentric, and at the moment, the hanging holes are conveniently sleeved on the outer walls of the four arc plates 16.
In order to facilitate the downward movement of the connecting structures such as the pulling base 15 and the sliding block 25, the base 15 is coaxially and fixedly provided with a supporting column 18, the supporting column 18 is fixedly provided with a front guide column 19, the circular arc outer walls of the four arc plates 16 are concentric with the front guide column 19 when kept concentric, and the diameter of a circle surrounded by the four arc plates 16 is the same as the diameter of the front guide column 19; by installing the front guide post 19, when a workpiece is required to be hung, the front guide post 19 is hooked by a hanging hole of the workpiece and pulled downwards to enable the four arc plates 16 to inwards turn over to form a cylinder, and then a worker slides the workpiece along the front guide post 19 to the cylinder formed by the four arc plates 16, so that the feeding action can be completed; when the blanking is needed, the workpiece is pulled downwards, then the workpiece is transited to the front guide post 19 from the arc plate 16, and then the workpiece is taken down; through the arrangement, the workpiece can be conveniently fed and discharged.
The installation mode, the connection mode or the setting mode of the automatic spraying production line are common mechanical modes, and can be implemented as long as the beneficial effects of the automatic spraying production line can be achieved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (2)
1. An automatic spray coating production line, characterized by comprising:
The spraying device comprises a spraying room (1) and a conveying device (2), wherein the conveying device (2) is installed inside the spraying room (1) in a winding closed loop manner, a feeding area (9) is arranged at the edge of the spraying room (1), a preheating channel (3), an electrostatic dust removal chamber (4) and a leveling chamber (6) are sequentially arranged at the downstream of the feeding area (9), and the preheating channel (3) is used for carrying out heating treatment on a workpiece before spraying; the electrostatic dust collection chamber (4) is used for removing dust and impurities on the surface of a workpiece before spraying; the leveling chamber (6) is used for applying preset pressure and speed to the surface coating of the workpiece after spraying so as to enable the surface of the coating to perform automatic leveling behavior;
The spraying device (5) is arranged between the electrostatic dust collection chamber (4) and the leveling chamber (6), and the spraying device (5) is used for spraying a workpiece flowing through the spraying device (5);
The device comprises an infrared curing device (7) and an ultraviolet curing device (8), wherein the infrared curing device (7) and the ultraviolet curing device (8) are arranged at the downstream of a leveling chamber (6), a plurality of infrared lamps are arranged inside the infrared curing device (7) along a workpiece moving route, a plurality of ultraviolet lamps are arranged inside the ultraviolet curing device (8) along the workpiece moving route, and the infrared curing device (7) and the ultraviolet curing device (8) are both used for curing a workpiece coating after spraying;
The control module is used for controlling and adjusting the conveying device (2), the preheating channel (3), the electrostatic dust removal chamber (4), the spraying device (5), the leveling chamber (6), the infrared curing device (7) and the ultraviolet curing device (8) according to workpiece processing requirements;
the control module automatically sprays the workpiece by the following method:
collecting original data of past spraying operation;
preprocessing the collected raw data so as to carry out modeling and simulation subsequently;
Extracting workpiece features and spraying features of the production line from the preprocessed data;
selecting a deep learning model as a model frame of a spraying process control analysis model; selecting a proper machine learning algorithm according to each feature after feature extraction, and establishing a corresponding model frame;
dividing the extracted workpiece features and spraying features into training data and verification data;
training and verifying the spraying process control analysis model by using training data and verification data respectively, and repeatedly adjusting and optimizing the model according to an actual spraying result to obtain the spraying process control analysis model; the method comprises the steps of obtaining workpiece data and spraying requirements to be subjected to spraying operation, wherein a manual measuring method, an automatic detecting instrument method and a process file recording method are adopted in the obtaining method;
Converting the spraying requirements into a digital format which can be identified by a spraying process control analysis model to obtain spraying characteristics; the spraying characteristics comprise the spraying angle and the spraying pressure of a spraying room (1), the moving speed of a conveying device (2), the preheating time and the preheating power of a preheating channel (3), the electrostatic strength of an electrostatic dust collection chamber (4), the leveling pressure and the leveling speed of a leveling chamber (6), the light source power and the curing time of an infrared curing device (7) and the light source power and the curing time of an ultraviolet curing device (8)
Extracting workpiece features in workpiece data, wherein the workpiece features comprise sizes, materials, colors and coating thicknesses;
Analyzing workpiece features and spraying features by using a pre-trained spraying process control analysis model and outputting control parameters;
Respectively controlling the conveying device (2), the preheating channel (3), the electrostatic dust collection chamber (4), the spraying device (5), the leveling chamber (6), the infrared curing device (7) and the ultraviolet curing device (8) in real time according to control parameters;
The hanging tool on the conveying device (2) comprises a hanging frame (10) and a plurality of hanging material modules (11) arranged on the hanging frame (10), wherein each hanging material module (11) comprises a base plate (12) fixedly arranged on the hanging frame (10), a base (15) is slidably arranged on each base plate (12), four mounting shafts (17) are rotatably arranged on each base (15), arc plates (16) are fixedly arranged on each mounting shaft (17), and the four arc plates (16) are in a circumferential array;
When a workpiece is hung, the four arc plates (16) slide downwards along with the base (15), and the four arc plates (16) synchronously rotate along the axis of the installation shaft (17) where the four arc plates (16) are positioned until the arc outer walls of the four arc plates (16) are kept concentric;
After the workpiece is hung, the four arc plates (16) rise along with the base (15), and the four arc plates (16) synchronously rotate reversely along the axis of the mounting shaft (17) where the four arc plates (16) are positioned until the corners of the four arc plates (16) are propped against the inner wall of the workpiece hanging hole;
The base (15) is coaxially and fixedly provided with a support column (18), the support column (18) is fixedly provided with a front guide column (19), the outer walls of the circular arcs of the four arc plates (16) are concentric with the front guide column (19) when kept concentric, and the diameter of a circle surrounded by the four arc plates (16) is the same as the diameter of the front guide column (19);
The end part of the mounting shaft (17) extending into the base (15) is coaxially sleeved with a first gear (21), the base (15) is rotatably provided with a driving shaft (22), the driving shaft (22) is sleeved with a second gear (23), and the second gear (23) is in meshed connection with the four first gears (21);
a sliding groove (24) is formed in the base plate (12) in a penetrating mode, a sliding block (25) is elastically installed in the sliding groove (24) in a sliding mode, and the base (15) is fixedly installed on the sliding block (25);
The driving shaft (22) rotates to penetrate through the sliding block (25), a third gear (27) is sleeved on the outer circumferential wall of the driving shaft (22) penetrating through the sliding block (25), a rack (28) is fixedly mounted on the base plate (12), and the third gear (27) is meshed with the rack (28).
2. An automatic spraying line according to claim 1, characterized in that the corners of the arc plates (16) are provided with sharp edges (20).
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| CN202310627844.8A CN116351627B (en) | 2023-05-31 | 2023-05-31 | Automatic spraying production line |
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| CN214320643U (en) * | 2021-01-12 | 2021-10-01 | 东莞市金锋五金喷涂有限公司 | Clamp for metal surface spraying |
| CN115889059A (en) * | 2022-12-02 | 2023-04-04 | 上海中联重科桩工机械有限公司 | Workpiece water-based paint coating production line and process |
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| CN101816987B (en) * | 2010-04-23 | 2012-06-20 | 广州红棉吉它有限公司 | System for electrostatically spraying wooden guitar by adopting photosensitive paint, and painting method |
| CN103041939B (en) * | 2013-01-24 | 2015-12-16 | 广东红棉乐器有限公司 | Water-based UV paints production line and the processing method thereof of electrostatic spraying wood guitar |
| CN108787293A (en) * | 2018-08-16 | 2018-11-13 | 东莞市亚弘涂装设备有限公司 | A kind of robot tracking spraying automatic assembly line |
| CN109317383B (en) * | 2018-10-25 | 2021-07-16 | 佛山市顺德区东亚汽车部件有限公司 | High-efficiency spraying production process and system for surface machining of injection molding part |
| CN112439585A (en) * | 2020-10-26 | 2021-03-05 | 安徽省青阳县华瑞科技有限公司 | Rotary hanger for spraying paint on automobile engine shell |
| CN112742644A (en) * | 2020-12-04 | 2021-05-04 | 上海航天设备制造总厂有限公司 | Flexible self-adaptive coating production line system suitable for aerospace products |
| CN215313453U (en) * | 2021-07-01 | 2021-12-28 | 温州驰诚真空机械有限公司 | Automatic UV coating assembly line |
| CN113523422A (en) * | 2021-07-27 | 2021-10-22 | 吉林省四诚环保科技有限公司 | Pipeline switching system of self-adaptation diameter |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214320643U (en) * | 2021-01-12 | 2021-10-01 | 东莞市金锋五金喷涂有限公司 | Clamp for metal surface spraying |
| CN115889059A (en) * | 2022-12-02 | 2023-04-04 | 上海中联重科桩工机械有限公司 | Workpiece water-based paint coating production line and process |
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