CN107350101B - Automobile brazing electrostatic spraying system - Google Patents
Automobile brazing electrostatic spraying system Download PDFInfo
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- CN107350101B CN107350101B CN201710626169.1A CN201710626169A CN107350101B CN 107350101 B CN107350101 B CN 107350101B CN 201710626169 A CN201710626169 A CN 201710626169A CN 107350101 B CN107350101 B CN 107350101B
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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
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/081—Plant for applying liquids or other fluent materials to objects specially adapted for treating particulate materials
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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
- B05B13/0278—Arrangement or mounting of spray heads
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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
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material
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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
- B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
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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
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
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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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- Spray Control Apparatus (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an automobile brazing electrostatic spraying system which comprises a conveying line for conveying workpieces, a spraying room with a closed space, a powder spraying device, a powder collecting and recovering device, a powder supplying and filtering device and an electric control device. The conveying line comprises a driving motor, an induction assembly and a plurality of rollers, and all the rollers are arranged along the conveying direction of the workpiece to form roller rows; the spraying room is respectively provided with an inlet and an outlet, the roller row penetrates through the inlet and then penetrates through the outlet, and the spraying room is provided with a fan; the powder spraying device comprises an upper powder spraying device, a lower powder spraying device and a lateral powder spraying device; one end of the powder collecting and recovering device is connected with the spraying room, the other end of the powder collecting and recovering device is connected with the powder supply filtering device, and the powder supply filtering device is respectively connected with the upper powder spraying device, the lower powder spraying device and the lateral powder spraying device; the electric control device is respectively and electrically connected with the driving motor, the induction component, the powder spraying device, the powder collecting and recovering device and the powder supplying and filtering device, so that the working efficiency is effectively improved, the use cost is also saved, and the quality and the reliability of powder spraying are further improved.
Description
Technical Field
The invention relates to a spraying system, in particular to an automobile brazing electrostatic spraying system for spraying an automobile air conditioner radiator.
Background
With the continuous development of economy, the continuous progress of science and technology and the continuous improvement of living water of people, various material supplies are provided for the production and the life of people, so that a good development platform is created for the production enterprises of the material supplies, the development pace of the production enterprises of the material supplies is further accelerated, and the automobile air conditioner radiator is one of the various material supplies.
At present, the conventional automobile air conditioner radiator adopts a brazing wet spraying process, the conventional wet spraying process has many defects, water and electricity resources are consumed greatly, and a spray nozzle is easily blocked, so that the efficiency is influenced; meanwhile, the utilization rate of the brazing flux is low, and the appearance quality of the surface of the workpiece is poor; moreover, the conventional brazing wet spraying process does not achieve uniform spraying effect on the fine inner holes of the core part.
Therefore, there is a need to provide an electrostatic spraying system for automobile brazing, which can improve the uneven spraying of the fine inner holes of the core part in the traditional brazing wet spraying process, effectively improve the labor efficiency and meet the product quality, so as to overcome the defects.
Disclosure of Invention
The invention aims to provide an automobile brazing electrostatic spraying system which improves the uneven spraying of a traditional brazing wet spraying process on a small inner hole of a core part, effectively improves the manual efficiency and meets the product quality.
In order to achieve the purpose, the automobile brazing electrostatic spraying system is suitable for spraying brazing flux powder on a workpiece, and comprises a conveying line for conveying the workpiece, a spraying room with a closed space, a powder spraying device, a powder collecting and recovering device for recovering dust in the spraying room, a powder supplying and filtering device for filtering the dust recovered by the powder collecting and recovering device and an electric control device. The conveying line comprises a driving motor, an induction assembly and a plurality of rollers, all the rollers are arranged in a roller row along the conveying direction of the workpiece, the driving motor drives the rollers to rotate, and the induction assembly is used for inducing whether the workpiece exists on the roller row or not; the spraying room is respectively provided with an inlet for the workpiece to enter the closed space and an outlet for the workpiece in the closed space to move out of the closed space, the roller row penetrates into the spraying room from the inlet and penetrates through the spraying room from the outlet, and the spraying room is provided with a fan for enabling the closed space to form negative pressure;
the powder spraying device comprises an upper powder spraying device, a lower powder spraying device and a lateral powder spraying device, the upper powder spraying device is positioned above the closed space corresponding to the workpieces on the roller row, the lower powder spraying device is positioned below the closed space corresponding to the workpieces on the roller row, and the lateral powder spraying device corresponds to the lateral direction of the workpieces on the roller row in the closed space; one end of the powder collecting and recovering device is connected with the spraying room, the other end of the powder collecting and recovering device is connected with one end of the powder supplying and filtering device, and the other end of the powder supplying and filtering device is respectively connected with the upper powder spraying device, the lower powder spraying device and the lateral powder spraying device; the electric control device is respectively electrically connected with the driving motor, the induction component, the powder spraying device, the powder collecting and recovering device and the powder supplying and filtering device;
the spraying room is internally provided with a pressure sensor for sensing the internal pressure of the closed space, and the opening and closing power assembly selectively drives the safety door to open and close under the cooperation of the pressure sensor;
the lateral powder spraying devices are respectively arranged outside two sides of the workpiece, the lateral powder spraying devices outside the two sides are arranged along the conveying direction of the workpiece in a staggered mode, and the upper powder spraying device and the lower powder spraying device are arranged along the conveying direction of the workpiece in a staggered mode;
the automobile brazing electrostatic spraying system further comprises a servo reciprocating mechanism for driving the lateral powder spraying devices to be close to or far away from the workpieces on the roller rows in the closed space, the servo reciprocating mechanism is electrically connected with the electric control device, and each lateral powder spraying device corresponds to one servo reciprocating mechanism.
Preferably, the upper powder spraying device and the lower powder spraying device are respectively provided with a high-pressure fan and 2 movable electrostatic spray guns, the high-pressure fan provides high-pressure airflow for each movable electrostatic spray gun, a turbulence sheet is arranged in the high-pressure fan, the lateral powder spraying device is provided with a high-pressure variable-frequency fan and a spray gun, and blades in the high-pressure variable-frequency fan are arranged in a forward tilting mode.
Preferably, the upper powder spraying device and the lower powder spraying device are respectively provided with a first gun clamp for adjusting the distance between the movable static spray gun and the workpiece, and the lateral powder spraying device is also provided with a second gun clamp for adjusting the distance between the spray gun and the workpiece.
Preferably, the automobile brazing electrostatic spraying system further comprises a drawer-type powder receiving hopper and a feeding platform located in front of the roller row, the drawer-type powder receiving hopper is adjacent to the outlet and located below the roller row correspondingly, the width of the feeding platform is matched with the axial length of the rollers, a scale mark and a guide bolt are arranged in front of the feeding platform, and the induction assembly is located outside the closed space and adjacent to the inlet.
Preferably, the powder supply filtering device includes a recycling device, a shaker, a dust hopper, a stirring barrel, a stirrer and a fluidizing device, the recycling device is connected to the powder collection recycling device, the dust hopper is located below the recycling device, the stirring barrel is located below the dust hopper, the stirrer stirs the flux powder in the stirring barrel, the fluidizing device is located at the bottom of the stirring barrel, and the upper powder spraying device, the lower powder spraying device and the lateral powder spraying device are respectively connected to the fluidizing device.
Preferably, the electric control device is provided with a touch screen, and the workpiece is an automobile air conditioner radiator.
Preferably, the driving motor drives all the rollers to synchronously rotate through a chain transmission structure or a belt transmission structure.
Compared with the prior art, the automobile brazing electrostatic spraying system automatically and electrostatically sprays the brazing flux of the automobile air conditioner radiator, and carries out electrostatic induction charging on the metal powder of the brazing flux, so that the particles of the brazing flux with negative charges are uniformly and effectively adsorbed on the surface of a fine inner hole, and the spraying permeability is realized on a dense structure product, thereby realizing good brazing effect, and obviously improving the quality and the qualification rate of the product, therefore, the automobile brazing electrostatic spraying system has the advantages that: (1) a large amount of water for production is saved; (2) the electricity consumption for production is averagely saved by 25%; (3) the comprehensive utilization rate of the brazing flux is greatly improved; (4) the discharge of sewage and environmental pollution are reduced; and (5) the product quality is obviously improved.
Drawings
FIG. 1 is a schematic plan view of an automotive brazing electrostatic painting system of the present invention.
FIG. 2 is a schematic plan view of the automotive brazing electrostatic spraying system shown in FIG. 1, as viewed from above.
FIG. 3 is a schematic diagram of the automotive brazing electrostatic spraying system shown in FIG. 1 in a plan view from left to right.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.
Referring to fig. 1 to 3, the electrostatic spraying system 100 for automobile brazing according to the present invention is suitable for spraying flux powder onto a workpiece 200, and includes a conveying line 10 for conveying the workpiece 200, a spraying room 20 having a closed space 21 (see fig. 3), a powder spraying device 30, a powder collecting and recycling device 40 for collecting and recycling dust in the spraying room 20, a powder supplying and filtering device 50 for filtering the dust collected and recycled by the powder collecting and recycling device 40, and an electric control device (not shown). The conveying line 10 comprises a driving motor 11, an induction component 12 and a plurality of rollers 13; all the rollers 13 are arranged out of the roller row along the conveying direction (i.e. indicated by arrow a) of the workpiece 200, and the driving motor 11 drives the rollers 13 to rotate, so that the rotating rollers 13 drive the workpiece 200 to be conveyed along the direction indicated by arrow a; the sensing assembly 12 is used for sensing whether the workpiece 200 is arranged on the roller row or not and preventing misoperation; specifically, in the embodiment, the driving motor 11 drives all the rollers 13 to rotate synchronously through the chain transmission structure 14, so that the gap between two adjacent rollers 13 is made larger, the blocking of the rollers 13 to the workpiece 200 is effectively reduced, and the reliability of spraying the workpiece 200 is ensured; the speed of the driving motor 11 can be adjusted, so that the rotation of the roller 13 can be controlled more flexibly; of course, in other embodiments, the driving motor 11 may also drive all the rollers 13 to rotate synchronously through a belt transmission structure, but not limited thereto. The spraying room 20 is respectively provided with an inlet 22 for the workpiece 200 to enter the closed space 21 and an outlet 23 for the workpiece 200 in the closed space 21 to move out of the closed space 21, and the roller row penetrates into the spraying room 20 from the inlet 22 and penetrates through the spraying room 20 from the outlet 23, as shown in the state of fig. 1; the spraying room 20 is provided with a fan (not shown) for forming a negative pressure in the closed space 21 to prevent dust from leaking; specifically, in the present embodiment, a dryer 70 for drying the enclosed space 21 is installed on the top of the spraying room 20, and the temperature of the hot air is automatically controlled to ensure uniform spraying and improved efficiency; the bottom of the spray room 20 is in a conical structure 24, so that dust is convenient to concentrate; a cleaning door 25, a safety door (not shown) and an opening and closing power assembly (not shown) for driving the safety door to open and close automatically are respectively installed on the side surface of the spraying room 20, a pressure sensor (not shown) for sensing the internal pressure of the enclosed space 21 is installed in the spraying room 20, and the opening and closing power assembly selectively drives the safety door to open and close under the cooperation of the pressure sensor so as to ensure the safety of the internal pressure of the enclosed space 21; for example, in the embodiment, the opening and closing power assembly includes a motor, a gear mounted on an output shaft of the motor, and a rack mounted on the safety door, but may have other structures; the closed space 21 of the spray room 20 is also provided with an illuminating lamp, so that the working condition can be observed conveniently; the side of the spraying room 20 is further provided with an observation window 26 for observing the working condition, but not limited thereto. It can be understood that the opening and closing power assembly selectively drives the safety door to open and close under the cooperation of the pressure sensor means that: when the pressure sensor senses that the pressure in the closed space 21 is too high, namely exceeds a set pressure value, the pressure sensor feeds back a sensing signal to the electric control device, and the electric control device controls the opening and closing power assembly to work, so that the working opening and closing power assembly drives the safety door to open to release pressure; when the pressure sensor senses that the pressure in the closed space 21 is smaller than a set pressure value, the pressure sensor feeds back a sensing signal to the electric control device, the electric control device controls the opening and closing power assembly to work, and therefore the working opening and closing power assembly drives the safety door to close. In addition, spraying room 20 adopts the various steel heated board of pin-connected panel to make, and the skin is the color-coated board, and middle packing insulation material is foamed continuous shaping by the PU, and the wallboard adopts the EPS with filling to adopt the steel sheet, and interior planking forms an organic whole with insulation material is whole to be suppressed, and the roof selects for use the various steel heated board to assemble the disk structure for it arranges succinctly.
As shown in fig. 1 to 3, the powder spraying device 30 includes an upper powder spraying device 31, a lower powder spraying device 32 and a lateral powder spraying device 33. The upper powder spraying device 31 is positioned above the corresponding workpiece 200 on the roller row in the closed space 21, and sprays powder to the workpiece 200 from above; the lower powder spraying device 32 is positioned below the corresponding workpiece 200 on the roller row in the closed space 21, and powder is sprayed on the workpiece 200 from below; the lateral powder spraying device 33 is corresponding to the lateral direction of the work piece 200 on the roller row in the closed space 21, and sprays powder to the work piece 200 from the lateral direction. Specifically, in the present embodiment, the lateral powder spraying devices 33 are respectively arranged outside both sides of the workpiece 200, so that two groups of lateral powder spraying devices 33 are provided, the lateral powder spraying devices 33 outside both sides are arranged in a staggered manner along the conveying direction (i.e. indicated by arrow a) of the workpiece 200, the upper powder spraying device 31 is arranged in a staggered manner along the conveying direction of the workpiece 200 and the lower powder spraying device 32, and the workpiece 200 (such as the core inner fin) is respectively subjected to staggered powder spraying, so that the fine inner holes of the core part thereof are uniformly adsorbed on the surface of the fine inner holes of the core part through electrostatic action, thereby achieving a good brazing effect, but not limited thereto. In order to enable the automobile brazing electrostatic spraying system 100 to aim at workpieces 200 with different widths, the automobile brazing electrostatic spraying system 100 further comprises a servo reciprocating mechanism 80 for driving the lateral powder spraying devices 33 to be close to or far away from the workpieces 200 on the roller row in the closed space 21, the servo reciprocating mechanism 80 is electrically connected with an electric control device, each lateral powder spraying device 33 corresponds to one servo reciprocating mechanism 80, and therefore, under the control of the electric control device, each servo reciprocating mechanism 80 drives the corresponding lateral powder spraying device 33 to move, the lateral powder spraying devices 33 are guaranteed to keep a proper distance with the workpieces 200, and spraying quality is improved. For example, in the present embodiment, the upper powder spraying device 31 and the lower powder spraying device 32 respectively have a high pressure blower and 2 mobile electrostatic spray guns 311, 321, the high pressure blower provides high pressure airflow for each mobile electrostatic spray gun 31, 32, and a turbulence sheet is disposed in the high pressure blower, so that the 2 mobile electrostatic spray guns 311, 321 are blown out by the high pressure blower to achieve better spraying of the built-in turbulence sheet; the lateral powder spraying device 33 is provided with a high-voltage variable-frequency fan 331 and a spray gun 332, blades 3311 in the high-voltage variable-frequency fan 331 are arranged in a forward tilting mode, so that the high-voltage variable-frequency fan 331 is small in size, light in weight and capable of generating high pressure, high frequency and special noise reduction materials generated in the air cutting process can be eliminated, and the noise ratio and vibration are greatly reduced; preferably, the upper powder spraying device 31 and the lower powder spraying device 32 are respectively provided with a first gun clamp 312 and a second gun clamp 322 for adjusting the distance between the movable static turtle spray guns 311 and 321 and the workpiece 200, the lateral powder spraying device 33 is also provided with a second gun clamp for adjusting the distance between the spray gun 332 and the workpiece 200, so that the distance between the movable static turtle spray guns 311 and 321 and the surface of the workpiece 200 and the distance between the spray gun 332 and the surface of the workpiece 200 are adjustable, the movable static turtle spray guns 311 and 321 and the spray gun 332 can be used at the surface spraying part of the workpiece 200 with the maximum efficiency, the powder quantity sprayed on the workpiece 200 by the central spraying areas of the movable static turtle spray guns 311 and 321 and the spray gun 332 is 5 to 8 grams per square, the consumption is saved, and the workpiece 200 with thicker specification can be penetrated. The blade 3311 is machined by computer balance correction and high precision machining to minimize vibration.
As shown in fig. 2 and 3, one end of the powder collecting and recovering device 40 is connected to the spray booth 20, the other end of the powder collecting and recovering device 40 is connected to one end of the powder supplying and filtering device 50, the powder collecting and recovering device 40 recovers the dust in the enclosed space 21 of the spray booth 20 to the powder supplying and filtering device 50, and the dust is filtered by the powder supplying and filtering device 50 and then reused. Specifically, in the present embodiment, the conical structure 24 and the high pressure fan of the spraying room 20 are respectively installed with the recycling pipe 27 connected to the powder collecting and recycling device 40, the air inlet of the powder collecting and recycling device 40 is of a circular structure, and the air inlet and the dust collecting pipe 41 of the powder collecting and recycling device 40 are fixed to be straight and cannot be bent, so that the powder collecting and recycling device 40 is ensured to be thorough and effective.
As shown in fig. 2 and 3, the other end of the powder supply filter device 50 is connected with the upper powder spraying device 31, the lower powder spraying device 32 and the lateral powder spraying device 33 respectively, and the flux is supplied to the upper powder spraying device 31, the lower powder spraying device 32 and the lateral powder spraying device 33. Specifically, as shown in fig. 3, in the present embodiment, the powder supply filtering device 50 includes a recycling device 51, a vibrator 52, a dust hopper 53, a stirring barrel 54, a stirrer 55 and a fluidizing device 56; the recovery device 51 is connected with the powder collecting and recovering device 40, the dust hopper 53 is positioned below the recovery device 51 correspondingly, the stirring barrel 54 is positioned below the dust hopper 53 correspondingly, the stirrer 55 stirs the brazing flux powder in the stirring barrel 54, the fluidizing device 56 is positioned at the bottom of the stirring barrel 54, and the upper powder spraying device 31, the lower powder spraying device 32 and the lateral powder spraying device 33 are respectively connected with the fluidizing device 56 so as to prevent dust from blocking the powder gun. Wherein, the vibrator 52 and the dust hopper 53 screen the brazing filler metal powder, and screen out directly available brazing filler metal powder and brazing filler metal powder containing impurities and caking. The electric control device is respectively electrically connected with the driving motor 11, the induction component 12, the powder spraying device 30, the powder collecting and recovering device 40 and the powder supplying and filtering device 50, and the electric control device controls the coordination work of the driving motor, the induction component 12, the powder spraying device 30, the powder collecting and recovering device 40 and the powder supplying and filtering device 50; specifically, in this embodiment, the electric control device is provided with a touch screen, which is a capacitive touch screen, but not limited thereto, so that an operation screen can be displayed through the touch screen for displaying the production quantity in real time, all controllable parts can be manually operated, a variety selection list can be quickly and conveniently selected from different varieties, the varieties of the workpieces 200 and parameters of each spray gun are set in advance and stored, then the workpieces 200 to be sprayed can be directly selected in the variety selection list screen, an abnormal display screen displays abnormal faults occurring in the current equipment on the touch screen, and abnormal conditions occurring before can be inquired, the temperature and the loss conditions in the motion process can be synchronously monitored and recorded, and the electric control device has a set value alarm function, and the product quality can be improved. More specifically, the following:
as shown in fig. 1 and fig. 2, the automobile brazing electrostatic spraying system 100 of the present invention further includes a drawer-type powder receiving hopper 91 and a feeding platform 92 located in front of the roller row. The drawer-type powder receiving hopper 91 is adjacent to the outlet 23 and is positioned below the corresponding roller row, the width of the feeding platform 92 is matched with the axial length of the roller 13, and a scale mark and a guide bolt 93 are arranged in front of the feeding platform 92, so that an operator can adjust the guide bolt 93 according to different sizes of the workpieces 200, and the workpieces 200 can enter the spray room 20 for spraying after being placed in a correct mode; the sensing assembly 12 is located outside the enclosed space 21 and adjacent to the inlet 22. In order to confirm the height and width of the workpiece 200 and match the corresponding spraying action, the automotive brazing electrostatic spraying system 100 of the invention further comprises a workpiece detection device 95 located at the butt joint of the feeding platform 92 and the roller row. In order to recover the dust remained on the workpiece 200 after spraying, the electrostatic spraying system 100 for automobile brazing of the present invention further comprises a powder sweeping device 94 located above the roller row, wherein the powder sweeping device 94 is further located above the drawer-type powder receiving hopper 91, and the drawer-type powder receiving hopper 91 contains the dust swept by the powder sweeping device 94.
Compared with the prior art, the automobile brazing electrostatic spraying system 100 of the invention is used for automatically and electrostatically spraying the brazing flux of the automobile air conditioner radiator, and performing electrostatic induction charging on the metal powder of the brazing flux, so that the particles of the brazing flux with negative charges are uniformly and effectively adsorbed on the surface of a fine inner hole, and the spraying permeability is provided for a dense structure product, thereby realizing good brazing effect, and obviously improving the quality and the qualification rate of the product, therefore, the automobile brazing electrostatic spraying system 100 of the invention has the advantages that: (1) saving a large amount of water for production; (2) the electricity consumption for production is averagely saved by 25%; (3) the comprehensive utilization rate of the brazing flux is greatly improved; (4) the discharge of sewage and environmental pollution are reduced; and (5) the product quality is obviously improved.
It should be noted that the workpiece 200 is a radiator of an automotive air conditioner, and particularly, a core body of a radiator of an automotive air conditioner, but not limited thereto.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.
Claims (7)
1. The utility model provides an automobile brazing electrostatic spraying system, is suitable for and carries out brazing flux powder spraying to the work piece, its characterized in that includes: the conveying line is used for conveying the workpieces and comprises a driving motor, an induction assembly and a plurality of rollers, all the rollers are arranged in a roller row along the conveying direction of the workpieces, the driving motor drives the rollers to rotate, and the induction assembly is used for inducing whether the workpieces exist on the roller row or not; the spraying room is provided with a closed space, the spraying room is respectively provided with an inlet for the workpiece to enter the closed space and an outlet for the workpiece in the closed space to move out of the closed space, the roller row penetrates into the spraying room from the inlet and penetrates through the spraying room from the outlet, and the spraying room is provided with a fan for enabling the closed space to form negative pressure; the powder spraying device comprises an upper powder spraying device, a lower powder spraying device and a lateral powder spraying device, the upper powder spraying device is positioned above the closed space corresponding to the workpieces on the roller row, the lower powder spraying device is positioned below the closed space corresponding to the workpieces on the roller row, and the lateral powder spraying device corresponds to the lateral direction of the workpieces on the roller row in the closed space; the powder collecting and recycling device is used for recycling dust in the spraying room, and one end of the powder collecting and recycling device is connected with the spraying room; the powder supply filtering device is used for filtering the dust recovered by the powder collection and recovery device, one end of the powder supply filtering device is connected with the other end of the powder collection and recovery device, and the other end of the powder supply filtering device is respectively connected with the upper powder spraying device, the lower powder spraying device and the lateral powder spraying device; the electric control device is respectively electrically connected with the driving motor, the induction component, the powder spraying device, the powder collecting and recovering device and the powder supplying and filtering device;
the spraying room is internally provided with a pressure sensor for sensing the internal pressure of the closed space, and the opening and closing power assembly selectively drives the safety door to open and close under the cooperation of the pressure sensor;
the lateral powder spraying devices are respectively arranged outside two sides of the workpiece, the lateral powder spraying devices outside the two sides are arranged along the conveying direction of the workpiece in a staggered mode, and the upper powder spraying device and the lower powder spraying device are arranged along the conveying direction of the workpiece in a staggered mode;
the automobile brazing electrostatic spraying system further comprises a servo reciprocating mechanism for driving the lateral powder spraying devices to be close to or far away from the workpieces on the roller rows in the closed space, the servo reciprocating mechanism is electrically connected with the electric control device, and each lateral powder spraying device corresponds to one servo reciprocating mechanism.
2. The automotive brazing electrostatic spraying system according to claim 1, wherein the upper powder spraying device and the lower powder spraying device are respectively provided with a high-pressure fan and 2 movable electrostatic spray guns, the high-pressure fan provides high-pressure air flow for each movable electrostatic spray gun, turbulence plates are arranged in the high-pressure fan, the lateral powder spraying device is provided with a high-pressure variable-frequency fan and the spray guns, and blades in the high-pressure variable-frequency fan are arranged in a forward tilting mode.
3. The automotive brazing electrostatic spraying system according to claim 2, wherein the upper powder spraying device and the lower powder spraying device each further comprise a first gun holder for adjusting the distance of the movable static spray gun relative to the workpiece, and the lateral powder spraying device further comprises a second gun holder for adjusting the distance of the spray gun relative to the workpiece.
4. The automotive brazing electrostatic spraying system according to claim 1, further comprising a drawer-type powder receiving hopper and a feeding platform located in front of the roller row, wherein the drawer-type powder receiving hopper is located adjacent to the outlet and below the roller row, the width of the feeding platform is matched with the axial length of the rollers, a scale mark and a guide bolt are arranged in front of the feeding platform, and the sensing assembly is located outside the closed space and adjacent to the inlet.
5. The automotive brazing electrostatic spraying system according to claim 1, wherein the powder supply filtering device comprises a recycling device, a shaker, a dust hopper, a stirring barrel, a stirrer and a fluidizing device, the recycling device is connected with the powder collection recycling device, the dust hopper is located below the recycling device, the stirring barrel is located below the dust hopper, the stirrer stirs the brazing flux powder in the stirring barrel, the fluidizing device is located at the bottom of the stirring barrel, and the upper powder spraying device, the lower powder spraying device and the lateral powder spraying device are respectively connected with the fluidizing device.
6. The automotive brazing electrostatic spraying system according to claim 1, wherein the electric control device is provided with a touch screen, and the workpiece is an automotive air conditioner radiator.
7. The automotive brazing electrostatic spraying system according to claim 1, wherein the driving motor drives all the rollers to rotate synchronously through a chain transmission structure or a belt transmission structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626169.1A CN107350101B (en) | 2017-07-27 | 2017-07-27 | Automobile brazing electrostatic spraying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626169.1A CN107350101B (en) | 2017-07-27 | 2017-07-27 | Automobile brazing electrostatic spraying system |
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| Publication Number | Publication Date |
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| CN107350101A CN107350101A (en) | 2017-11-17 |
| CN107350101B true CN107350101B (en) | 2022-12-02 |
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| CN201710626169.1A Active CN107350101B (en) | 2017-07-27 | 2017-07-27 | Automobile brazing electrostatic spraying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111438010B (en) * | 2020-04-10 | 2021-08-24 | 世柜电气设备(苏州)有限公司 | Electrostatic spraying equipment and spraying process for cold-rolled steel plate of cabinet body |
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| CN114798212B (en) * | 2022-04-22 | 2023-11-03 | 浙江创新汽车空调有限公司 | Electrostatic spraying device and spraying method for brazing flux of automobile air conditioner heat exchanger |
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