CN118976641A - A water-based paint spraying process for automobile plastic parts - Google Patents
A water-based paint spraying process for automobile plastic parts Download PDFInfo
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- CN118976641A CN118976641A CN202411101272.0A CN202411101272A CN118976641A CN 118976641 A CN118976641 A CN 118976641A CN 202411101272 A CN202411101272 A CN 202411101272A CN 118976641 A CN118976641 A CN 118976641A
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- nozzle
- automobile plastic
- water
- spraying
- heat exchange
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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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/62—Arrangements for supporting spraying apparatus, e.g. suction cups
- B05B15/628—Arrangements for supporting spraying apparatus, e.g. suction cups of variable length
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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
- 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
- B05B13/0228—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 the movement of the objects being rotative
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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
- 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
- B05B13/0285—Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts
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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
- 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
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
-
- 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
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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
- B05D3/04—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention discloses a water paint spraying process for automobile plastic parts, which adopts a water paint spraying device, wherein the water paint spraying device comprises a spraying mechanism, a feeding mechanism, a positioning mechanism and a drying mechanism; the spray nozzle adjusting device in the spraying mechanism and the automatic adjusting function thereof enable the spray nozzle to be accurately adjusted according to the specific shape and the inclination angle of the bumper, and the mechanism enables the spray nozzle to adapt to the complex shape of the automobile bumper; according to the invention, through the matching design of the lifting slide rail and the pipeline clamp, the winding of the feeding branch pipe caused by the position change of the spraying nozzle is prevented, and the normal operation of the feeding function is prevented; the automatic control and intelligent design reduces manual intervention, improves the reliability and operability of the system, and the drying mechanism and the heat exchange waste pool are matched for use, so that efficient waste treatment and air heat exchange are realized, the environmental burden is reduced, and the drying efficiency is improved.
Description
Technical Field
The invention relates to the technical field of water paint spraying, in particular to a water paint spraying process for automobile plastic parts.
Background
In the automotive industry, plastic parts, such as bumpers, are widely used to enhance the appearance and functionality of vehicles. These plastic parts often face external environmental challenges including ultraviolet light, chemicals, and mechanical impact, and therefore require protective coatings to be applied to extend their useful life and maintain an aesthetic appearance. The aqueous paint, which is an environment-friendly paint, gradually replaces the conventional solvent-based paint because it has lower Volatile Organic Compound (VOC) emissions, reduces the environmental impact, and reduces health risks.
The traditional spraying technology generally adopts a spraying nozzle to spray the automobile parts, but the spraying nozzle is difficult to adapt to the spraying requirements of parts with complex shapes such as automobile bumpers and the like because the spraying nozzle is mostly fixed on a sliding rail, so that the uniform spraying is difficult; the sprayed automobile parts also need to be moved to another device for drying treatment, so that the production efficiency is reduced, the paint layer is easily influenced by external environment in the moving process, and the adhesive force and durability of the coating are reduced; waste materials and waste gases in the spraying process are difficult to collect and purify in a combined mode, so that high-temperature waste gases and heat energy are often directly discharged, the waste gases and the heat energy cannot be effectively recycled and utilized, energy consumption and operation cost are increased, energy conservation and environmental protection are not achieved, and improvement is needed.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
Therefore, in order to solve the technical problems, the invention provides the following technical scheme: the water paint spraying process for the automobile plastic parts adopts a water paint spraying device, and the water paint spraying device comprises a spraying mechanism, a feeding mechanism, a positioning mechanism and a drying mechanism, and comprises the following specific steps:
S1: firstly, placing an automobile plastic bumper to be sprayed on a vacuum positioning seat, enabling the inner side wall to be sprayed to face upwards, then starting a vacuum pump, enabling the vacuum pump to empty air on a vacuum generating part and the automobile plastic bumper through a pipeline, and positioning the vacuum generating part and the automobile plastic bumper;
S2: starting a second electric telescopic rod, enabling the second electric telescopic rod to downwards move the spraying nozzle to a proper height, restarting the motor, enabling the motor to drive a first ball screw to rotate, enabling the first ball screw to be connected with a mechanical transmission of an adjusting sliding seat, enabling the adjusting sliding seat to drive the spraying nozzle to horizontally move, evenly spraying the horizontal part of the automobile plastic bumper, enabling a nozzle adjusting gear to be meshed with a nozzle adjusting rack set when the spraying nozzle moves below the nozzle adjusting rack set under the control of the motor, further driving a connecting shaft to rotate, enabling the inclination angle of the spraying nozzle to be consistent with the inclination angle of a vacuum generating part, evenly spraying water paint on the inclined part of the automobile plastic bumper, enabling part of waste materials in the spraying process to enter a heat exchange waste pool to be collected, and reducing environmental pollution;
S3: after spraying is finished, the first electric telescopic rod is controlled to drive the height of the drying box to descend, the telescopic cylinder is controlled to retract, the telescopic rack group is driven to horizontally move, the telescopic rack group is connected with the turnover gear in a mechanical transmission manner, the turnover gear is driven to rotate 180 degrees, and the rotary shaft is further driven to rotate 180 degrees; the first electric telescopic rod is controlled to drive the drying box to rise in height, the sealing cover is arranged at the top end of the sealing opening, so that the drying box forms a sealing structure, and the drying box is used for drying the paint spraying surface of the automobile plastic bumper; the high-temperature hot air generated in the drying box in the drying process is filtered by a filter and then is discharged to a heat exchange pipeline under the action of a fan, the high-temperature hot air entering the heat exchange pipeline is cooled by low-temperature water in a heat exchange waste pool and is discharged after heat exchange, and the water in the heat exchange waste pool is continuously introduced into low-temperature and clean water through a water inlet pipe and is continuously discharged out of sewage in the heat exchange waste pool through a water discharge pipe;
S4: and (3) placing the other non-sprayed automobile plastic bumper on the vacuum generating part above, adsorbing and positioning the automobile plastic bumper according to the step of the step S1, spraying the automobile plastic bumper according to the step of the step S2, controlling the first electric telescopic rod to drive the drying box to descend in height according to the step of the step S3 after the spraying is finished, controlling the first electric telescopic rod to extend out, enabling the vacuum positioning seat to rotate 180 degrees to an original state, taking out the dried automobile plastic bumper on the vacuum generating part above, and controlling the first electric telescopic rod to drive the drying box to ascend in height so as to dry the sprayed automobile plastic bumper on the vacuum generating part below.
The spraying mechanism comprises a spraying nozzle, the top end of the spraying nozzle is connected with a first rotating device, the first rotating device is connected with an adjusting slide seat, the left and right sliding of the adjusting slide seat is connected with a nozzle slide rail, a first ball screw is rotatably installed in the nozzle slide rail, the first ball screw is mechanically connected with the adjusting slide seat in a transmission manner, and the first ball screw is fixedly connected with a motor;
The feeding mechanism comprises a liquid supply branch pipe, the spraying nozzle is connected with the liquid supply branch pipe, the liquid supply branch pipe is arranged on the pipeline clamp in a penetrating way, the pipeline clamp is connected with a lifting slide rail in an up-down sliding way, the lifting slide rail is fixed at the bottom of the nozzle slide rail, the second ball screw is connected with the inside of the lifting slide rail, and the second ball screw is in mechanical transmission connection with the motor, so that the motor drives the second ball screw to rotate;
The positioning mechanism comprises a vacuum positioning seat, a vacuum generating part is arranged on the vacuum positioning seat, and the vacuum generating part is connected with a vacuum pump through a pipeline; the vacuum positioning seat is connected with a second rotating device;
The drying mechanism comprises a drying box, the bottom of the drying box is connected with a first electric telescopic rod, one side of the drying box is connected with an exhaust pipe, the exhaust pipe is connected with a fan, an air outlet of the fan is connected with a heat exchange pipeline, and the heat exchange pipeline is buried in a heat exchange waste pool.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the first rotating device comprises a connecting shaft, the spray nozzle is fixedly connected with the connecting shaft, the connecting shaft is rotatably installed on the adjusting slide seat, a nozzle adjusting gear is arranged on the connecting shaft, a nozzle adjusting rack set matched with the spray nozzle adjusting gear is arranged on a nozzle sliding rail on one side of the nozzle adjusting gear, so that when the spray nozzle moves to the position below the nozzle adjusting rack set under the control of a motor, the nozzle adjusting gear is meshed with the nozzle adjusting rack set, and the connecting shaft is driven to rotate, so that the inclination angle of the spray nozzle is kept consistent with that of the vacuum generating part.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the spraying nozzle is provided with two groups, the two groups of spraying nozzles are respectively arranged on two sides of the nozzle sliding rail, and the two groups of spraying nozzles are respectively connected with a group of liquid supply branch pipes.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the top of shower nozzle slide rail is connected with the electronic telescopic link of second, and the top of the electronic telescopic link of second is connected with the top of spraying support, and the bottom of spraying support is fixed subaerial.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the top end of the second ball screw is fixedly connected with a lower conical gear, an upper conical gear is arranged at the position of the first ball screw corresponding to the lower conical gear, and the upper conical gear is in meshed transmission connection with the lower conical gear.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the feeding mechanism further comprises a liquid supply main pipe, one end, far away from the spraying nozzle, of the liquid supply branch pipe is connected with the liquid supply main pipe, the liquid supply main pipe is connected with a liquid supply pump, the liquid supply pump is connected with a liquid supply tank, and water paint is stored in the liquid supply tank.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the two groups of vacuum generating parts are arranged on the vacuum positioning seat in an up-down symmetrical way; the vacuum generating part is provided with an automobile plastic bumper which is of a U-shaped structure, two sides of the automobile plastic bumper are of bending structures, and the vacuum generating part is consistent with the automobile plastic bumper in structure.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the second rotating device comprises a rotating shaft, the rotating shafts are arranged on two sides of the vacuum positioning seat, the rotating shafts are rotationally connected with a spraying bracket, a turning gear is arranged on the rotating shafts, a telescopic rack set is connected to the turning gear, and a telescopic cylinder is connected to the telescopic rack set.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the heat exchange waste pool is arranged below the drying box, the first electric telescopic rod is arranged inside the heat exchange waste pool, the drying box is arranged below the vacuum positioning seat, the top end of the drying box is provided with a sealing port, the vacuum positioning seat is provided with a sealing cover matched with the sealing port, and when the drying box rises in height under the control of the first electric telescopic rod, the sealing cover is arranged at the top end of the sealing port, so that the drying box is in a sealing structure.
As a preferable scheme of the water paint spraying process for the automobile plastic parts, the invention comprises the following steps: the heat exchange pipeline is arranged in the waste collection tank in a serpentine structure, and a water inlet pipe and a water outlet pipe which are connected with the water pump are arranged on the waste collection tank; a filter is arranged at the air inlet of the heat exchange pipeline, and a filter screen plate, an active carbon filter layer and a HEPA filter layer are arranged inside the filter.
The invention has the beneficial effects that:
1. the spray nozzle adjusting device and the automatic adjusting function thereof in the spraying mechanism enable the spray nozzle to be accurately adjusted according to the specific shape and the inclination angle of the bumper, and the mechanism enables the spray nozzle to adapt to the complex shape of the automobile bumper, solves the problem that the traditional spraying method is difficult to uniformly spray, ensures uniform coating, reduces coating defects and improves the intelligent level of the spraying process.
2. According to the invention, through the matching design of the lifting slide rail and the pipeline clamp, the winding of the feeding branch pipe caused by the position change of the spraying nozzle is prevented, and the normal operation of the feeding function is influenced, so that the production efficiency is improved, and the adaptability and the stability of the system are enhanced.
3. The water paint spraying process adopts water paint, reduces the use of organic solvents, and has lower VOC emission compared with the traditional solvent paint; meanwhile, waste materials in the spraying process are effectively collected, and the design of the heat exchange waste material pool combines the functions of air filtration and high-temperature waste gas treatment, so that the spray coating device has innovative environmental protection and energy saving characteristics, and further reduces environmental pollution.
4. The invention can ensure the adhesive force and durability of the coating by precisely controlling the spraying process and the automatic drying treatment, and improve the overall performance and the aesthetic degree of the bumper; the automatic control and intelligent design reduces manual intervention, improves the reliability and operability of the system, and the drying mechanism and the heat exchange waste pool are matched for use, so that efficient waste treatment and air heat exchange are realized, the environmental burden is reduced, and the drying efficiency is improved.
5. The drying mechanism transfers the heat in the high-temperature hot air to low-temperature water through the heat exchange waste pool, so that the heat energy is effectively recovered; the heat energy in the waste gas can be reused, the energy utilization efficiency of the system is improved, and the energy consumption cost is reduced; through accurate control's stoving case and waste material processing system, provided more even and efficient stoving environment, seal structure and hot air's cyclic utilization have improved drying efficiency to the uniformity and the quality of product have been ensured.
6. The invention realizes high-precision positioning and spraying of the automobile plastic bumper by utilizing the vacuum positioning seat and the automatic rotating device; the automated positioning and spraying system reduces human intervention and improves consistency and efficiency of production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a schematic structural view of the present invention.
Fig. 4 is a schematic cross-sectional view of the present invention.
Fig. 5 is a schematic structural view of the present invention.
In the figure: 100. a spraying mechanism; 101. spraying a spray nozzle; 102. a first rotating device; 1021. a connecting shaft; 1022. a nozzle adjusting gear; 1023. a spray head adjusting rack group; 103. adjusting the sliding seat; 104. a spray head slide rail; 105. a first ball screw; 106. a motor; 107. a second electric telescopic rod;
200. A feeding mechanism; 201. a liquid supply branch pipe; 202. a pipe clamp; 203. lifting the sliding rail; 204. a second ball screw; 205. a lower bevel gear; 206. an upper bevel gear; 207. a liquid supply main pipe; 208. a liquid supply pump; 209. a liquid supply tank;
300. A positioning mechanism; 301. a vacuum positioning seat; 3011. a sealing cover; 302. a vacuum generating part; 303. a vacuum pump; 304. a second rotating device; 3041. a rotation shaft; 3042. a turnover gear; 3043. a telescopic rack set; 3044. a telescopic cylinder;
400. A drying mechanism; 401. a drying box; 4011. sealing the mouth; 402. a first electric telescopic rod; 403. an exhaust pipe; 404. a blower; 405. a heat exchange pipeline; 406. a heat exchange waste pool; 407. a filter;
500. And (5) spraying a bracket.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Referring to fig. 1 to 5, for a first embodiment of the present invention, there is provided a water paint spraying process for automotive plastic parts, the water paint spraying process employing a water paint spraying apparatus comprising a spraying mechanism 100, a feeding mechanism 200, a positioning mechanism 300 and a drying mechanism 400,
The spraying mechanism 100 comprises a spraying nozzle 101, a first rotating device 102 is connected to the top end of the spraying nozzle 101, an adjusting slide seat 103 is connected to the first rotating device 102, a nozzle slide rail 104 is connected to the adjusting slide seat 103 in a left-right sliding manner, a first ball screw 105 is rotatably installed on the nozzle slide rail 104, the first ball screw 105 is mechanically and drivingly connected with the adjusting slide seat 103, and a motor 106 is fixedly connected to the first ball screw 105; the first rotating device 102 includes a connecting shaft 1021, the spray nozzle 101 is fixedly connected with the connecting shaft 1021, the connecting shaft 1021 is rotatably installed on the adjusting slide 103, a nozzle adjusting gear 1022 is arranged on the connecting shaft 1021, a nozzle adjusting rack set 1023 matched with the nozzle adjusting gear 1022 is arranged on a nozzle slide rail 104 on one side of the nozzle adjusting gear 1022, so that when the spray nozzle 101 moves below the nozzle adjusting rack set 1023 under the control of the motor 106, the nozzle adjusting gear 1022 is meshed with the nozzle adjusting rack set 1023, and the connecting shaft 1021 is driven to rotate, so that the inclination angle of the spray nozzle 101 is consistent with that of the vacuum generating part 302; the two groups of spray nozzles 101 are arranged on two sides of the nozzle slide rail 104, and the two groups of spray nozzles 101 are respectively connected with a group of liquid supply branch pipes 201; the top end of the spray head sliding rail 104 is connected with a second electric telescopic rod 107, the top end of the second electric telescopic rod 107 is connected with the top end of the spraying bracket 500, and the bottom of the spraying bracket 500 is fixed on the ground;
The spray nozzle adjusting component and the automatic adjusting function thereof in the spraying machine enable the spray nozzle 101 to be accurately adjusted according to the specific shape and the inclination angle of the bumper, and the mechanism enables the spray nozzle 101 to adapt to the complex shape of the automobile bumper, so that the problem that the traditional spraying method is difficult to uniformly spray is solved, the coating uniformity is ensured, the coating defects are reduced, and the intelligent level of the spraying process is improved; this not only improves the production efficiency, but also enhances the adaptability and stability of the system.
The feeding mechanism 200 comprises a liquid feeding branch pipe 201, the spraying nozzle 101 is connected with the liquid feeding branch pipe 201, the liquid feeding branch pipe 201 is arranged on a pipeline clamp 202 in a penetrating manner, the pipeline clamp 202 is connected with a lifting slide rail 203 in a vertical sliding manner, the lifting slide rail 203 is fixed at the bottom of the nozzle slide rail 104, a second ball screw 204 is connected inside the lifting slide rail 203, and the second ball screw 204 is mechanically connected with a motor 106 in a transmission manner, so that the motor 106 drives the second ball screw 204 to rotate; a lower conical gear 205 is fixedly connected to the top end of the second ball screw 204, an upper conical gear 206 is arranged at a position of the first ball screw 105 corresponding to the lower conical gear 205, and the upper conical gear 206 is in meshed transmission connection with the lower conical gear 205; the feeding mechanism 200 further comprises a main liquid supply pipe 207, one end of the main liquid supply pipe 201, which is far away from the spray nozzle 101, is connected with the main liquid supply pipe 207, the main liquid supply pipe 207 is connected with a main liquid supply pump 208, the main liquid supply pump 208 is connected with a liquid supply tank 209, and water paint is stored in the liquid supply tank 209;
The water paint spraying process adopts water paint, reduces the use of organic solvents, and has lower VOC emission compared with the traditional solvent paint; through the cooperation design of lift slide rail 203 and pipeline clamp 202, prevent to lead to the winding of feed branch pipe 201 because of the transform of spraying shower nozzle 101 position, influence the normal clear of feed function, improve the practicality of device.
The positioning mechanism 300 comprises a vacuum positioning seat 301, a vacuum generating part 302 is arranged on the vacuum positioning seat 301, and the vacuum generating part 302 is connected with a vacuum pump 303 through a pipeline; the vacuum positioning seat 301 is connected with a second rotating device 304; the vacuum generating parts 302 are provided with two groups, and the two groups of vacuum generating parts 302 are vertically symmetrically arranged on the vacuum positioning seat 301; the vacuum generating part 302 is provided with an automobile plastic bumper which is of a U-shaped structure, and two sides of the automobile plastic bumper are both of a bending structure, and the vacuum generating part 302 is consistent with the automobile plastic bumper in structure; the second rotating device 304 includes a rotating shaft 3041, the rotating shaft 3041 is disposed on both sides of the vacuum positioning seat 301, the rotating shaft 3041 is rotatably connected with the spraying bracket 500, a turning gear 3042 is disposed on the rotating shaft 3041, a telescopic rack set 3043 is connected to the turning gear 3042, and the telescopic rack set 3043 is connected to a telescopic cylinder 3044;
The invention realizes high-precision positioning and overturning control of the automobile plastic bumper by utilizing the vacuum positioning seat 401 and the automatic rotating device, reduces manual intervention, improves the consistency and efficiency of production, realizes the positioning function of the workpiece to be dried and sprayed by a group of vacuum positioning seats 401, has simple structure and various functions, and fully utilizes the self structural design of the vacuum positioning seat 401 to meet various processing requirements.
The drying mechanism 400 comprises a drying box 401, a first electric telescopic rod 402 is connected to the bottom of the drying box 401, an exhaust pipe 403 is connected to one side of the drying box 401, a fan 404 is connected to the exhaust pipe 403, a heat exchange pipeline 405 is connected to an air outlet of the fan 404, and the heat exchange pipeline 405 is buried in a heat exchange waste pool 406; the heat exchange waste pool 406 is arranged below the drying box 401, the first electric telescopic rod 402 is arranged inside the heat exchange waste pool 406, the drying box 401 is arranged below the vacuum positioning seat 301, the top end of the drying box 401 is provided with a sealing port 4011, the vacuum positioning seat 301 is provided with a sealing cover 3011 matched with the sealing port 4011, and when the drying box 401 ascends under the control of the first electric telescopic rod 402, the sealing cover 3011 is covered on the top end of the sealing port 4011, so that the drying box 401 forms a sealing structure; the heat exchange pipeline 405 is arranged in a serpentine structure in the waste collection tank 406, and a water inlet pipe and a water outlet pipe connected with a water pump are arranged on the waste collection tank 406; a filter 407 is arranged at the air inlet of the heat exchange pipeline 405, and a filter screen plate, an activated carbon filter layer and a HEPA filter layer are arranged inside the filter 407.
The drying mechanism transfers the heat in the high-temperature hot air to low-temperature water through the heat exchange waste pool 406, so as to effectively recycle the heat energy; the heat energy in the waste gas can be reused, the energy utilization efficiency of the system is improved, and the energy consumption cost is reduced; by precisely controlling the drying box 401 and the waste treatment system, a more uniform and efficient drying environment is provided, a sealing structure and the recycling of hot air (the water in the waste collection tank 406 is subjected to heat exchange through the heat exchange pipeline 405, so that the waste collection tank 406 creates a non-low-temperature environment for the drying box 401 to a certain extent and plays a certain role in heat preservation for the drying box 401) improve the drying efficiency, and the consistency and quality of products are ensured; the waste materials in the spraying process are effectively collected, and the design of the heat exchange waste material tank 406 combines the functions of air filtration and high-temperature waste gas treatment, has innovative environmental protection and energy saving characteristics, and further reduces environmental pollution.
The water paint spraying process using the water paint spraying device comprises the following specific steps:
S1: firstly, placing an automobile plastic bumper to be sprayed on a vacuum positioning seat 301, enabling the inner side wall to be sprayed to face upwards, then starting a vacuum pump 303, enabling the vacuum pump 303 to empty air on a vacuum generating part 302 and the automobile plastic bumper through a pipeline, and positioning the vacuum generating part 302 and the automobile plastic bumper;
S2: starting a second electric telescopic rod 107, enabling the second electric telescopic rod 107 to move the spraying nozzle 101 downwards to a proper height, restarting the motor 106, enabling the motor 106 to drive the first ball screw 105 to rotate, enabling the first ball screw 105 to drive the spraying nozzle 101 to horizontally move through mechanical transmission connection with the adjusting slide seat 103, evenly spraying the horizontal part of the automobile plastic bumper, enabling the nozzle adjusting gear 1022 to be meshed with the nozzle adjusting rack group 1023 when the spraying nozzle 101 moves to the position below the nozzle adjusting rack group 1023 under the control of the motor 106, further driving the connecting shaft 1021 to rotate, enabling the inclination angle of the spraying nozzle 101 to be consistent with the inclination angle of the vacuum generating part 302, further evenly spraying water paint on the inclined part of the automobile plastic bumper, enabling part of waste materials in the spraying process to enter the heat exchange waste material pool 406 for collection, and reducing environmental pollution;
S3: after spraying is finished, the first electric telescopic rod 402 is controlled to drive the drying box 401 to descend in height, the telescopic cylinder 3044 is controlled to retract to drive the telescopic rack set 3043 to move horizontally, the telescopic rack set 3043 is connected with the turnover gear 3042 in a mechanical transmission manner, the turnover gear 3042 is driven to rotate 180 degrees, and the rotary shaft 3041 is further driven to rotate 180 degrees by the vacuum positioning seat 301; the first electric telescopic rod 402 is controlled to drive the height of the drying box 401 to rise, the sealing cover 3011 is covered at the top end of the sealing opening 4011, so that the drying box 401 forms a sealing structure, and the drying box 401 is used for drying the paint spraying surface of the automobile plastic bumper; the high-temperature hot air generated in the drying box 401 in the drying process is filtered by a filter 407 and then is discharged to a heat exchange pipeline 405 under the action of a fan 404, the high-temperature hot air entering the heat exchange pipeline 405 is cooled by low-temperature water in a heat exchange waste tank 406 and is discharged after heat exchange, and water in the heat exchange waste tank 406 is continuously introduced into low-temperature and clean water through a water inlet pipe and is continuously discharged out of sewage in the heat exchange waste tank 406 through a water outlet pipe;
S4: and (3) placing the other non-sprayed automobile plastic bumper on the upper vacuum generating part 302, adsorbing and positioning the automobile plastic bumper according to the step of the step S1, spraying the automobile plastic bumper according to the step of the step S2, controlling the first electric telescopic rod 402 to drive the drying box 401 to descend in height according to the step of the step S3 after the spraying is finished, controlling the first electric telescopic rod 402 to extend out, enabling the vacuum positioning seat 301 to rotate 180 degrees to an original state, taking out the dried automobile plastic bumper on the upper vacuum generating part 302, and controlling the first electric telescopic rod 402 to drive the drying box 401 to ascend in height and drying the sprayed automobile plastic bumper on the lower vacuum generating part 302.
The invention can ensure the adhesive force and durability of the coating by precisely controlling the spraying process and the automatic drying treatment, and improve the overall performance and the aesthetic degree of the bumper; the automatic control and intelligent design reduces manual intervention, improves the reliability and operability of the system, and the drying mechanism 400 and the heat exchange waste tank 406 are matched for use, so that efficient waste treatment and air heat exchange are realized, the environmental burden is reduced, and the drying efficiency is improved.
Notably, are: the whole device controls the implementation of the device through the controller, and the controller is common equipment, belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated here.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411101272.0A CN118976641A (en) | 2024-08-12 | 2024-08-12 | A water-based paint spraying process for automobile plastic parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411101272.0A CN118976641A (en) | 2024-08-12 | 2024-08-12 | A water-based paint spraying process for automobile plastic parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119897236A (en) * | 2025-03-31 | 2025-04-29 | 上海居光智能科技有限公司 | Automobile bumper spraying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119897236A (en) * | 2025-03-31 | 2025-04-29 | 上海居光智能科技有限公司 | Automobile bumper spraying device |
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