EP3272424A1 - Thermische spritzvorrichtung, thermisches spritzsystem und thermische spritzentechnologie dafür - Google Patents

Thermische spritzvorrichtung, thermisches spritzsystem und thermische spritzentechnologie dafür Download PDF

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Publication number
EP3272424A1
EP3272424A1 EP16206684.9A EP16206684A EP3272424A1 EP 3272424 A1 EP3272424 A1 EP 3272424A1 EP 16206684 A EP16206684 A EP 16206684A EP 3272424 A1 EP3272424 A1 EP 3272424A1
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EP
European Patent Office
Prior art keywords
sandblasting
thermal spraying
wire feeding
electric arc
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16206684.9A
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English (en)
French (fr)
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EP3272424B1 (de
Inventor
Delong XUE
Wuhui ZOU
Zengjun Dang
Guangdong Gao
Jinhui CHENG
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ZYNP Corp
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ZYNP Corp
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Priority claimed from CN201620764704.0U external-priority patent/CN206345911U/zh
Priority claimed from CN201610571824.3A external-priority patent/CN105970143B/zh
Application filed by ZYNP Corp filed Critical ZYNP Corp
Priority to PL16206684T priority Critical patent/PL3272424T3/pl
Publication of EP3272424A1 publication Critical patent/EP3272424A1/de
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Publication of EP3272424B1 publication Critical patent/EP3272424B1/de
Revoked legal-status Critical Current
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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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • B05B7/224—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material having originally the shape of a wire, rod or the like
    • 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
    • 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
    • B05B13/0242—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 objects being individually presented to the spray heads by a rotating element, e.g. turntable
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/131—Wire arc spraying

Definitions

  • the present application relates to the technical field of spraying and in particular to a thermal spraying device.
  • the present application further relates to a thermal spraying system including the thermal spraying device, and a thermal spraying technology based on the thermal spraying system.
  • Electric arc spraying is one kind of thermal spraying, and is a technology in which an electric arc between two continually feed-in metal wires is used as a heat source to melt the metal wires, the melted metal is atomized by compressed air, and atomized metal drops are accelerated to be sprayed to a workpiece to form a coating on a surface of the workpiece.
  • the electric arc spraying in the conventional technology uses a handheld electric arc spraying gun to manually spray a single workpiece, the working efficiency is low, the spraying quality is not steady due to human factors, and the processing cost is high.
  • an object of the present application is to provide a thermal spraying device in order to improve the spraying efficiency and stability of the spraying quality.
  • Another object of the present application is to provide a thermal spraying system having the thermal spraying device in order to improve the spraying efficiency and the stability of the spraying quality.
  • a third object of the present application is to provide a thermal spraying technology based on the thermal spraying system in order to improve the spraying quality.
  • a thermal spraying device including:
  • the thermal spraying device further includes a lifting device, the electric arc spraying device is arranged on the lifting device and the master controller is connected to the lifting device to control the lifting device.
  • the electric arc spray device includes:
  • each of the wire feeding mechanisms includes:
  • the electric arc spraying device further includes wire guide components, each of the wire feeding mechanisms corresponds to one wire guide component, the wire guide components are arranged at an inlet side of the corresponding wire feeding mechanisms, each of the wire guide components includes two wire guide wheel sets, and position-limiting directions to the metal wires, of the two wire guide wheel sets are perpendicular to each other.
  • the rotatable worktable includes:
  • the thermal spraying device further includes a plurality of dust removal pipelines, the dust removal pipelines are arranged above the rotatable worktable and each dust removal pipeline corresponds to one electric arc spraying device.
  • the thermal spraying device further includes a protective chamber; the electric arc spraying device, the dust removal pipeline and a part of the rotatable worktable are located inside the protective chamber; and a part of the rotatable worktable is located outside the protective chamber, the wire placing racks are arranged on an outer wall of the protective chamber, and the master controller and the electric arc spraying controller of the electric arc spraying device are located outside the protective chamber.
  • the spraying tools are uniformly distributed on the rotatable worktable in the circumference direction.
  • the driving device is a servo motor.
  • a thermal spraying system is further provided according to the present application, which includes the above thermal spraying device.
  • the thermal spraying system further includes a sandblasting roughening device including:
  • the sandblasting roughening device further includes a sand recycling device including:
  • the sandblasting roughening device further includes a sandblasting chamber, and the sandblasting gun, the compressed air device and the rotary table are arranged inside the sandblasting chamber.
  • the sandblasting roughening device further includes a dust remover which is connected to the sandblasting chamber by dust removal pipelines.
  • the sandblasting roughening device further includes a filter which is arranged between the dust removal pipelines and the dust remover.
  • the tool driving device includes:
  • the sandblasting roughening device further includes a blocking plate assembly fixed above a station where the sandblasting tool, which the sandblasting gun aims at, is located, and configured to block an end opening of a workpiece rotating for spraying.
  • a thermal spraying technology is further provided according to the present application.
  • the thermal spraying technology is based on the thermal spraying system described above, compressed air with a pressure of 0.6MPa is adopted and aluminum silicon wire rods with a diameter ranging from 1.6mm to 3mm which are melted are sprayed to the workpiece by the electric arc spraying device, the electric arc spraying device sprays the workpiece up and down repeatedly at a speed ranging from 15mm/s to 45mm/s, with a repetition times being one to four, and an aluminum silicon coating is formed on the surface of the workpiece.
  • the aluminum silicon coating has a roughness, Rz, ranging from 100 ⁇ m to 250 ⁇ m, and has a thickness ranging from 0.1mm to 0.8mm.
  • wire feeding speeds of the aluminum silicon wire rods range from 4m/min to 8m/min, and a voltage of the electric arc spraying device ranges from 28V to 40V.
  • the content of silicon in the aluminum silicon wire rods ranges from 11% to 13%.
  • the surface of the workpiece is roughened by the sandblasting roughening device, compressed air used for sandblasting has a pressure not lower than 0.6Mpa, and a roughening time ranges from 5 seconds to 15 seconds.
  • a roughened portion of the workpiece which is roughened has a roughness, Rz, ranging from 30 ⁇ m to 90 ⁇ m, and has a cleanliness level of Sa 3.
  • the present application has the following technical effects.
  • the electric arc spraying device is arranged at the periphery of a rotatable worktable, spraying tools which are driven to rotate by the motor are located on the rotatable worktable in a circumference direction and the rotatable worktable is controlled to rotate by the master controller; when a certain spraying tool rotates together with the rotatable worktable to the station where the electric arc spraying device is located, the electric arc spraying device performs a thermal spraying operation to the workpiece on the spraying tool; after that, the rotatable worktable continues to rotate and the electric arc spraying device sprays the workpiece on a next spraying tool, thereby realizing the assembly line spray.
  • the spraying efficiency is improved, manual spray is needless, and the stability of the spraying quality is improved.
  • FIG. 1 is a schematic view showing the structure of a thermal spraying device according to the present application
  • Fig. 2 is a top schematic view showing the structure of an electric arc spraying device of the thermal spraying device according to the present application
  • Fig. 3 is a schematic view showing the structure of Fig. 2 taken along A-A; Fig.
  • FIG. 4 is a schematic view showing the structure of a rotatable worktable of the thermal spraying device according to the present application
  • Fig. 5 is an electrical schematic diagram of the thermal spraying device according to the present application
  • Fig. 6 is a schematic view showing the structure of a sandblasting roughening device according to the present application
  • Fig. 7 is a side view of the sandblasting roughening device according to the present application
  • Fig. 8 is a schematic view showing the structure of a tool driving device of the sandblasting roughening device according to the present application.
  • a thermal spraying device is provided according to the present application, which can perform an assembly line spray operation, thus may improve the spraying efficiency and the stability of spraying quality.
  • a thermal spraying system including the thermal spraying device is further provided according to the present application, which can perform the assembly line spray operation, thus may improve the spraying efficiency and the stability of spraying quality.
  • a thermal spraying technology based on the thermal spraying system is further provided according to the present application, which may improve the spraying quality.
  • a thermal spraying device which includes at least one electric arc spraying device 06, a rotatable worktable 01, a plurality of spraying tools 02, a plurality of wire placing racks 07 and a master controller 08.
  • the rotatable worktable 01 rotates in the horizontal plane
  • the electric arc spraying device 06 is arranged on a periphery station of the rotatable worktable 01
  • the spraying tools 02 are arranged on the rotatable worktable 01 in the circumference direction.
  • the spraying tools 02 are uniformly distributed on the rotatable worktable 01 in the circumference direction and perform circling motion together with the rotatable worktable 01.
  • Each of the spraying tools 02 is driven to rotate by a motor 021 to drive the workpiece to rotate.
  • the wire placing racks 07 are arranged at an outside of the rotatable worktable 01, and each of the wire placing racks 07 corresponds to one electric arc spraying device 06.
  • the wire placing racks 07 are configured to place metal wires to supply the electric arc spraying device 06 with the metal wires.
  • the master controller 08 is connected to the rotatable worktable 01 to control the rotation of the rotatable worktable 01.
  • the working process of the above thermal spraying device is as follows.
  • the electric arc spraying device 06 is arranged on the periphery station of the rotatable worktable 01, and the master controller 08 controls the rotatable worktable 01 to rotate.
  • the master controller 08 controls the rotatable worktable 01 to stop rotating
  • the electric arc spraying device 06 aims at the workpiece on the spraying tool 02, and at the same time the spraying tool 02 is driven to rotate by the motor 021
  • an electric arc spraying controller 8 controls a wire feeding mechanism 3 to feed the metal wires and controls a voltage of a contact tube 6 to melt the metal wires by electrifying, and a compressed air spray pipe 7 sprays atomized metal fine drops to a surface of the rotating workpiece.
  • the master controller 08 controls the rotatable worktable 01 to continue to rotate so that a next spraying tool 02 reaches the station where the electric arc spraying device 06 is located, and the spraying of a workpiece on the next spraying tool 02 is performed, and the above process cycles in turn. Therefore, the assembly line spray operation is achieved.
  • the spraying efficiency is improved, the problem of unstable spraying quality due to human factor is avoided, and the stability of the spraying quality is improved.
  • the number of the electric arc spraying device 06 is two, thus can spray different positions of each workpiece, which allows the spraying to be uniform.
  • the thermal spraying device further includes a lifting device 05, the electric arc spraying device 06 is arranged on the lifting device 05, and the master controller 08 is connected to the lifting device 05.
  • the lifting device 05 can rise and fall through an electric lifting cylinder, a hydraulic cylinder or a pneumatic linear actuator.
  • the lifting device 05 is common in the market and can be directly bought to use.
  • the purpose of setting the lifting device 05 is to control the lifting device 05 to move upward and downward by the master controller 08 when the spray operation is performed, thus the electric arc spraying device 06 is driven to move upward and downward so that the workpiece can be thoroughly and uniformly sprayed.
  • the lifting device 05 may not provided, just the spraying is not as uniform as the spraying when the lifting device 05 is provided.
  • an electric arc spraying device 06 which includes a supporting base 2, a wire feeding mechanism 3, an insulated fixing bracket 5, a contact tube 6, a compressed air spray pipe 7 and an electric arc spraying controller 8.
  • the supporting base 2 is of a plate structure and is configured to support other components.
  • the number of the wire feeding mechanism 3 is two and the two wire feeding mechanisms 3 are both fixed on the supporting base 2 and are configured to push and convey the metal wires into the contact tube 6.
  • the insulated fixing bracket 5 is fixed on the supporting base 2, and located at an output side of the two wire feeding mechanisms.
  • the number of the contact tubes 6 is two and the two contact tubes 6 are both fixed on the insulated fixing bracket 5.
  • Wire outlets of the two contact tubes 6 are close to each other, however are not in contact with each other, and are insulated from each other via the insulated fixing bracket 5.
  • Each contact tube 6 corresponds to one wire feeding mechanism 3, and the two wire feeding mechanisms 3 push and convey the metal wires to the corresponding contact tubes 6.
  • Two metal wires extend outward via the wire outlets of the two contact tubes 6 respectively. Since the two wire outlets form a certain included angle, the two metal wires keep getting close to each other until they are in contact during the extending process.
  • the compressed air spray pipe 7 is fixed on the insulated fixing bracket 5, a nozzle of the compressed air spray pipe 7 aims at the wire outlets of the two contact tubes 6, and the compressed air spray pipe 7 is connected to a compressed air system and is configured to spray high-speed air to the wire outlets of the two contact tubes 6.
  • the electric arc spraying controller 8 is connected to the wire feeding mechanisms 3 and the contact tubes 6, and configured to control a metal wire feeding speed of the wire feeding mechanisms 3 and the voltage of the contact tubes 6 respectively.
  • the working principle of the contact tubes 06 are as follows. Two metal wires are respectively conveyed into the two contact tubes 6 via two wire feeding mechanisms 3, and the two metal wires are in contact after respectively extending from the wire outlets of the contact tube 6. After the two contact tubes 6 are electrified, the two metal wires are electrically connected and are melted under the action of electricity. Compressed air is introduced into the compressed air spray pipe 7 and is sprayed to melted portions of the two metal wires via the nozzle of the compressed air spray pipe 7 to atomize the metal wires and spray atomized metal at a high speed, and the atomized metal fine drops are sprayed on the workpiece and form a metal coating, thus the electric arc spraying is completed.
  • the supporting base 2, the contact tubes 6, the compressed air spray pipe 7, the wire feeding mechanisms 3 and the insulated fixing bracket 5 of the electric arc spraying device in the present application are fixed together, which as a whole can be arranged on an assembly line station and realize the assembly line spray operation.
  • the spraying efficiency is improved, the problem of unstable spraying quality caused by human factor is avoided, and the stability of the spraying quality is improved.
  • each metal wire mechanism 3 includes a frame 301, a wire feeding wheel set 302, a driving gear 303 and a power component 4.
  • the frame 301 is fixed on the supporting base 2 and has a vertically arranged casing structure.
  • the wire feeding wheel set 302 is rotatably arranged in the frame 301. At least two groups of the wire feeding wheel sets 302 are provided, and are arranged in the wire feeding direction.
  • Each of the wire feeding wheel sets 302 includes two wire feeding wheels and wheel surfaces of the two wire feeding wheels in each of the wire feeding wheel sets 302 are provided with grooves matched with each other for clamping the metal wires.
  • the two wire feeding wheels are both provided with gears, the two wire feeding wheels are engaged via the gears and both the two groups of the wire feeding wheel sets 302 are connected to the driving gear 303 by meshing transmission.
  • Each wire feeding wheel is provided with a gear and the driving gear 303 is provided between two groups of the wire feeding wheel sets 302 and connected to one wire feeding wheel of each group of the wire feeding wheel sets 302 by meshing transmission.
  • the power component 4 is transmitted and connected to the driving gear 303, and the power component 4 may be a gear motor or a hydraulic motor.
  • the power component 4 drives the driving gear 303
  • the driving gear 303 drives two wire feeding wheels of the two groups of the wire feeding wheel sets 302 to rotate
  • one wire feeding wheel in each group of the wire feeding wheel sets 302 drives another wire feeding wheel to rotate
  • the grooves on the wheel surfaces of the two wire feeding wheels of each group of the wire feeding wheel sets 302 clamp the metal wires and the metal wires are pushed and conveyed to the contact tube 6 with the rotation of the wire feeding wheel, and the pushing and conveying directions in the two groups of the wire feeding wheel sets 202 are identical.
  • the wire feeding mechanism 3 also may include one or more wire feeding wheel sets 302, as long as the pushing and conveying directions of the wire feeding wheel sets 302 are identical.
  • the electric arc spraying device 06 further includes a wire guide component 1, and each wire feeding mechanism 3 corresponds to one wire guide component 1.
  • the wire guide component 1 is arranged at an inlet side of the wire feeding mechanism 3, each wire guide component 1 includes two wire guide wheel sets, with limiting directions to the metal wires being perpendicular to each other. The metal wires are limited and guided by the two wire guide wheel sets having perpendicular limiting directions, thus the metal wires entering the wire feeding mechanism 3 are steadily conveyed.
  • a rotatable worktable 01 includes a base 012, a turntable 011 and a driving device 013.
  • the base 012 is fixed and immovable, and the turntable 011 is horizontally arranged and rotatably connected to the base 012.
  • a turntable bracket 014 is provided between the turntable 011 and the base 012, the turntable 011 is fixedly connected to the turntable bracket 014, and the turntable bracket 014 is rotatably connected to the base 012.
  • the spraying tool 02 is installed on the turntable bracket 014, the driving device 013 is connected to the turntable 011, and specifically may be connected to the turntable 011 by a gear train, for driving the turntable 011 to rotate relative to the base 012.
  • the master controller 08 is connected to the driving mechanism 013, the driving mechanism 013 may be a servo motor, and the servo motor 013 is controlled to act by the master controller 08, thus the rotatable worktable 01 is controlled to rotate.
  • the thermal spraying device further includes a plurality of dust removal pipelines 03, the dust removal pipelines 03 are arranged above the rotatable worktable 01, and each of the dust removal pipelines 03 corresponds to one electric arc spraying device 06.
  • the position of the dust removal pipeline 03 is fixed relative to the station where the electric arc spraying device 06 is located, and thus when the electric arc spraying device 06 sprays, dust and fog generated at the position of the spraying tool 02, which is spraying, are absorbed to protect the environment.
  • the thermal spraying device further includes a protective chamber 04 which is enclosed to be a ring-shaped structure.
  • the electric arc spraying device 06, the dust removal pipeline 03 and a part of the turntable 011 are located inside the protective chamber 04, and a part of the turntable 011 is located outside the protective chamber 04.
  • the wire placing racks 07 are arranged on an outer wall of the protective chamber 04, and the master controller 08 and the electric arc spraying controller 8 of the electric arc spraying device 06 are located outside the protective chamber 04.
  • the scattering of the dust and fog generated during the spraying process can be reduced by the protective effect of the protective chamber 04 and thus the working environment is further protected. Since a part of the rotatable worktable 01 is located outside the protective chamber 04, the workpiece can be installed and disassembled outside the protective chamber 04, and workers needn't to operate in the protective chamber 04, thus the safety of the workers are protected.
  • Fig. 5 is an electrical schematic diagram of the thermal spraying device according to the present application.
  • the thermal spraying device may use Siemens S7-1200 as the controller, and of course other controllers may also be used.
  • the input device is mainly a button and a proximity switch, and the output is mainly starting and stopping of a control frequency converter, and pulses and directions of a servo.
  • the frequency converter and the motor 021 of the spraying tool 02 are connected with a one-to-one correspondence between them for controlling the starting and stopping of the motor 021.
  • the controller controls the servo motor of the rotatable worktable 01 according to programs and controls the turntable 011 to stop when the turntable 011 turns to a certain position.
  • the controller controls two servo motors of two lifting devices 05 according to programs to control the upward and downward movements of the electric arc spraying device 06, and the control principle is the same as the control principle of the servo motor of the rotatable worktable 01.
  • the controller sends a signal to drive the motor 021 of the spraying tool 02 to rotate.
  • a touch screen communicates with the controller S7-1200, a position of the servo motor is set in the touch screen and can be changed at any time.
  • a thermal spraying system is further provided according to the present application, which includes the thermal spraying device described in the above embodiments, through which the assembly line spray operation is realized.
  • the spraying efficiency is improved, the problem of spraying quality being unstable caused by human factors is avoided, and the stability of the spraying quality is improved.
  • the thermal spraying system in this embodiment further includes a sandblasting roughening device configured to sandblast a surface of the workpiece before spraying for roughening the surface of the workpiece, thus paint may adhere to the surface well.
  • the sandblasting roughening device includes a sand box 11, a sandblasting gun 111, a compressed air device 12, a rotary table 110 and a plurality of sandblasting tools 14.
  • the sand box 11 is configured to contain sandblasting materials, the sandblasting gun 111 is connected to the sand box 11, and the sand in the sand box 11 may enter the sandblasting gun 111 and finally is sprayed to the surface of the workpiece from the sandblasting gun 111.
  • the compressed air device 12 is arranged between the sandblasting gun 111 and the sand box 11 and is configured to spray compressed air to the sandblasting gun 111, an air flow with high-speed movement forms a negative pressure in the sandblasting gun 111, and the sandblasting materials in the sand box 11 are absorbed into the sandblasting gun 111 and are sprayed out via a nozzle of the sandblasting gun 111.
  • the rotary table 110 rotates in the horizontal plane, the sandblasting gun 111 is arranged at the station on the outer periphery of the rotary table 110, and the number of the sandblasting gun 111 may be one or more than one.
  • the sandblasting tools 14 are arranged on the rotary table 110 in a circumference direction, each of the sandblasting tools 14 is driven to rotate by the tool driving device 15, and the sandblasting gun 111 aims at the sandblasting tool 14.
  • the working principle of the above sandblasting roughening device is as follows.
  • the workpiece to be sandblasted is fixed on the sandblasting tool 14, the rotary table 110 rotates, and the sandblasting tool 14 performs a circular motion together with the rotary table 110.
  • the rotary table 110 stops rotating, the sandblasting gun 111 aims at the workpiece on the sandblasting tool 14, and at the same time the sandblasting tool 14 is driven to rotate by the tool driving device 15, the compressed air device 12 sprays high-speed air flow into the sandblasting gun 111, the sand in the sand box 11 is absorbed into the sandblasting gun 111 and is sprayed to the surface of the workpiece via the nozzle of the sandblasting gun 111, and the surface of the workpiece is roughened.
  • the rotary table 110 continues to rotate to allow a next sandblasting tool 14 to reach the station where the sandblasting gun 111 is located, so that the sandblasting roughening of the workpiece on the next sandblasting tool 14 is performed, and the above process sequentially and circularly proceeds.
  • the roughened workpiece is conveyed to the thermal spraying device to perform the spraying operation, the workpiece having a roughened surface can better adhere the paint, thus the spraying quality is further improved.
  • a partition 13 is arranged between every two adjacent sandblasting tools 14 in this embodiment.
  • the partition 13 is fixed on the rotary table 110 to isolate the sandblasting tools 14 from each other, so that the sand on the station of the sandblasting tool 14 which is performing the sandblasting may not enter other stations, thereby facilitating concentration of the sand and reducing scattering of the sand.
  • the sandblasting roughening device is further optimized in the embodiment.
  • the sandblasting roughening device further includes a sand recycling device.
  • the sand recycling device includes a helical sand conveying machine 112 and a sand hoister 19.
  • the helical sand conveying machine 112 includes a U-shaped groove having an upward opening, and a helical conveying mechanism is arranged in the U-shaped groove.
  • the helical sand conveying machine 112 is located under the station where the sandblasting gun 111 is located and is located below the rotary table 110 for collecting the sand sprayed from the sandblasting gun 111.
  • the sand falls into the helical sand conveying machine 112, and is conveyed to the sand hoister 19 via the helical sand conveying mechanism.
  • the sand hoister 19 includes a closed conveying passage which is vertically arranged, and a plurality of sand recycling boxes conveyed by chains are provided in the closed conveying passage.
  • the plurality of sand recycling boxes are sequentially distributed in the vertical direction and circularly rise and fall with the conveying of the chains.
  • the sand recycling boxes overturn and the sand in the sand recycling boxes is poured out, and the sand enters the sand box 11 via an outlet of the closed conveying passage.
  • the procedure sequentially and circularly proceeds.
  • the used sand can be recycled, and an operating environment of the sandblasting roughening device remains clear at the same time.
  • the sand recycling device may have other structural styles as long as the sand can be recycled and conveyed to the sand box 11, and the structure styles are not limited to the styles listed in the embodiment.
  • the sand recycling device may not be provided, and the sand in the sandblasting roughening device is cleaned regularly instead.
  • the sandblasting roughening device further includes a sandblasting chamber, which is a half closed chamber.
  • the sandblasting gun 111, the sandblasting tool 14 and the rotary table 110 are arranged inside the sandblasting chamber, one side of the sandblasting chamber is provided with a window for installing and disassembling the workpiece, and other portions of the sandblasting chamber are all closed.
  • the scattering to the surrounding environment of the sand sprayed by the sandblasting gun 111 is reduced and the operating environment is improved.
  • the sandblasting roughening device further includes a dust remover 17 connected to the sandblasting chamber by the dust removal pipelines.
  • a dust remover 17 connected to the sandblasting chamber by the dust removal pipelines.
  • the sandblasting roughening device further includes a filter 16 which is arranged between the dust removal pipelines and the dust remover 17. Before the dust in the sandblasting chamber entering the dust remover 17, the dust first enters the filter 16 to be filtered, thus the dust removal effect is enhanced and the dust remover 17 is protected.
  • a discharged air filter 18 is arranged at an outlet of the dust remover 17, thus the air discharged to the outer environment is further purified.
  • the sandblasting roughening device further includes a blocking plate assembly fixed above the station where the sandblasting tool 14, which the sandblasting gun 111 aims at, is located.
  • the blocking plate assembly includes a blocking plate 113, a connecting rod which is fixedly connected to the blocking plate 113, is movable upward and downward and is rotatable, and a connecting rod driving device.
  • the connecting rod driving device drives the connecting rod to move downward and drives the blocking plate 113 to block an opening at an upper end of the workpiece to prevent the sand from entering inside of the workpiece. Since the connecting rod is rotatable, during the process that the sandblasting tool 14 drives the workpiece to rotate, the blocking plate 113 rotates together with the workpiece and may not interfere with the rotation of the workpiece.
  • a tool driving device 15 which includes a tool motor 151, a friction wheel shaft 153, a first friction wheel 141, a second friction wheel 154 and a chain 152.
  • the tool motor 151 and the friction wheel shaft 153 are transmitted and connected by the chain 152
  • the second friction wheel 154 is fixedly connected to the friction wheel shaft 153
  • the first friction wheel 141 is connected to a rotation shaft of the sandblasting tool 14.
  • a rotation axis of the first friction wheel 141 is arranged to be perpendicular to a rotation axis of the second friction wheel 154.
  • a wheel surface of the second friction wheel 154 is in a frictional contact with an edge of a plane at one side of the first friction wheel 141.
  • the first friction wheel 141 is driven to rotate by a pivoting friction of the second friction wheel 154.
  • the rotation shaft of each of the sandblasting tools 14 is provided with one first friction wheel 141.
  • the number of the friction wheel shafts 153 is determined according to the practical needs and may be one, two, three or more than three.
  • At least one tool driving device 15 is arranged on the station where the sandblasting tool 14 is located and the sandblasting gun 111 aims at the sandblasting tool 14, and the tool driving device 15 may also be arranged on the stations where other sandblasting tools 14 are located.
  • the friction wheel shaft 153 may also be transmitted and connected to the tool motor 151 by gears and so on.
  • the tool driving device 15 may also be other forms, for example, the rotation shaft of each sandblasting tool 14 is directly transmitted and connected to one tool motor 151 as long as the sandblasting tool 14 can be driven to rotate, and the forms are not limited to the forms listed in the embodiment.
  • the tool driving device 15 is rotatably connected to a supporting frame 114 of the sandblasting roughening device, the rotation axis of the tool driving device 15 is perpendicular to the axis of the friction wheel shaft 153, the friction wheel shaft 153 can rotate around the rotation axis of the tool driving device 15, thus allowing the second friction wheel 154 to get close to or be away from the first friction wheel 141.
  • the tool driving device 15 is driven to rotate by a telescoping mechanism 155.
  • the telescoping mechanism 155 acts on the tool driving device 15 and the second friction wheel 154 is raised to contact with the first friction wheel 141.
  • the telescoping mechanism 155 acts in a reverse direction and the second friction wheel 154 descends and disengages the first friction wheel 141.
  • the telescoping mechanism 155 may not be provided, in such case, the second friction wheel 154 of the tool driving device 15 is always in contact with the first friction wheel 141, and only the rotation of the rotary table 110 is affected to a certain degree and the rotation may not smooth.
  • the telescoping mechanism 155 may be a telescoping cylinder and so on.
  • the rotary table 110 of the sandblasting roughening device includes a tool table, a rotary table shaft 1101 and a rotary table motor 1102.
  • the tool table is fixedly connected to the rotary table shaft 1101, and the rotary table shaft 1101 is transmitted and connected to the rotary table motor 1102.
  • Both the rotary table shaft 1101 and the rotary table motor 1102 are located above the tool table and the rotary table motor 1102 drives the tool table to rotate by a reduction box, a self-centering keyless bushing and the rotary table shaft 1101.
  • a thermal spraying technology is further provided according to the present application.
  • the thermal spraying technology is based on the thermal spraying system described above, the specific operation is that: compressed air with a pressure of 0.6MPa is adopted and aluminum silicon wire rods with a diameter ranging from 1.6mm to 3mm which are melted are sprayed to the workpiece by the electric arc spraying device, the electric arc spraying device sprays the workpiece up and down repeatedly at a speed ranging from 15mm/s to 45mm/s, with a repetition times being one to four, and an aluminum silicon coating is formed on the surface of the workpiece.
  • the aluminum silicon coating has a roughness, Rz, ranging from 100 ⁇ m to 250 ⁇ m, and has a thickness ranging from 0.1mm to 0.8mm.
  • wire feeding speeds of the aluminum silicon wire rods range from 4m/min to 8m/min, and a voltage of the electric arc spraying device ranges from 28V to 40V.
  • the content of silicon in the aluminum silicon wire rods ranges from 11% to 13%.
  • compressed air used for sandblasting has a pressure not lower than 0.6Mpa, and a roughening time ranges from 5 seconds to 15 seconds.
  • a roughened portion of the workpiece which is roughened has a roughness, Rz, ranging from 30 ⁇ m to 90 ⁇ m, and has a cleanliness level of Sa3.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Coating By Spraying Or Casting (AREA)
EP16206684.9A 2016-07-20 2016-12-23 Thermische spritzvorrichtung, thermisches spritzsystem und thermische spritzentechnologie dafür Revoked EP3272424B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16206684T PL3272424T3 (pl) 2016-07-20 2016-12-23 Urządzenie do natryskiwania cieplnego, układ do natryskiwania cieplnego i technika natryskiwania cieplnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620764704.0U CN206345911U (zh) 2016-07-20 2016-07-20 一种热喷涂设备和一种热喷涂系统
CN201610571824.3A CN105970143B (zh) 2016-07-20 2016-07-20 热喷涂设备、热喷涂系统及其热喷涂工艺

Publications (2)

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EP3272424A1 true EP3272424A1 (de) 2018-01-24
EP3272424B1 EP3272424B1 (de) 2019-02-13

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EP16206684.9A Revoked EP3272424B1 (de) 2016-07-20 2016-12-23 Thermische spritzvorrichtung, thermisches spritzsystem und thermische spritzentechnologie dafür

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EP (1) EP3272424B1 (de)
DE (1) DE202017100079U1 (de)
PL (1) PL3272424T3 (de)

Cited By (5)

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CN108722734A (zh) * 2018-07-20 2018-11-02 天津京创源装饰工程有限公司 一种防水涂料自动喷涂装置
CN112007811A (zh) * 2020-09-14 2020-12-01 姚啸云 一种涂料喷涂装置
CN113250425A (zh) * 2020-02-26 2021-08-13 董卫兵 一种喷涂方向渐变型砂浆喷涂设备
CN115870888A (zh) * 2023-02-23 2023-03-31 福建省富达精密科技有限公司 显示器边框表面处理设备及其表面处理工艺
CN116000826A (zh) * 2022-12-21 2023-04-25 驰逸自动化科技(苏州)有限公司 一种硬质车削机异形合金件的表面防腐处理装置及方法

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CN113262916A (zh) * 2021-06-07 2021-08-17 福建省英普瑞斯科技有限公司 台车式齿轮泵精准供油的液体手动静电喷枪
CN114700203B (zh) * 2022-04-09 2023-09-12 山东长青金属表面工程有限公司 一种生产加工的高强度金属涂层的喷涂装置及其喷涂方法
CN117431493B (zh) * 2023-10-26 2024-05-24 永凯智能设备(深圳)有限公司 一种全自动数控喷涂机
CN117643985B (zh) * 2024-01-29 2024-04-19 圣达电气有限公司 一种电解铜箔防氧化喷涂装置以及工艺

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DE102013007737A1 (de) * 2013-05-07 2014-11-13 Britta Rossen Beschichtungsvorrichtung zum thermischen Beschichten
CN105212444A (zh) * 2015-09-30 2016-01-06 天津马士通机械设备有限公司 多工位全自动鞋底喷砂打磨喷胶烘干圆盘机

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DE102013007737A1 (de) * 2013-05-07 2014-11-13 Britta Rossen Beschichtungsvorrichtung zum thermischen Beschichten
CN105212444A (zh) * 2015-09-30 2016-01-06 天津马士通机械设备有限公司 多工位全自动鞋底喷砂打磨喷胶烘干圆盘机

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722734A (zh) * 2018-07-20 2018-11-02 天津京创源装饰工程有限公司 一种防水涂料自动喷涂装置
CN113250425A (zh) * 2020-02-26 2021-08-13 董卫兵 一种喷涂方向渐变型砂浆喷涂设备
CN113250425B (zh) * 2020-02-26 2023-01-24 张家界鸿图新材料有限公司 一种喷涂方向渐变型砂浆喷涂设备
CN112007811A (zh) * 2020-09-14 2020-12-01 姚啸云 一种涂料喷涂装置
CN116000826A (zh) * 2022-12-21 2023-04-25 驰逸自动化科技(苏州)有限公司 一种硬质车削机异形合金件的表面防腐处理装置及方法
CN116000826B (zh) * 2022-12-21 2023-12-26 驰逸自动化科技(苏州)有限公司 一种硬质车削机异形合金件的表面防腐处理装置及方法
CN115870888A (zh) * 2023-02-23 2023-03-31 福建省富达精密科技有限公司 显示器边框表面处理设备及其表面处理工艺

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DE202017100079U1 (de) 2017-01-23
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