A large-scale online thermal spraying equipment

Abstract

The present invention discloses an online large-scale thermal spraying device, which includes one or more thermal spraying chambers, wherein a channel is formed in the thermal spraying chamber, a feeding device and a diversion device are provided at the top of the channel, thermal spraying mechanisms are provided on both sides of the channel, and a hopper is provided at the bottom of the channel. The thermal spraying chamber is also provided with a detection sensor and an electronic control box. The electronic control box obtains the position of the workpiece through the detection sensor, controls the thermal spraying head in the thermal spraying mechanism to move with the workpiece and spray material to thermally spray the covering on the workpiece surface. The hopper is used to receive the sprayed material and debris from the workpiece surface covering after spraying. The feeding device is used to lift the sprayed material in the hopper back to the top of the thermal spraying chamber and transport it to each thermal spraying mechanism via the diversion device. The thermal spraying device is based on the physical spraying principle and has good spraying effect. At the same time, it has a large working space, a high degree of automation, no chemical and water pollution, low air pollution, and can realize the recycling of sprayed material. It is low-carbon and environmentally friendly, and has broad application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of material surface treatment, in particular to an online large-scale thermal spraying device. Background Art

[0002] Metal surfaces are often covered in corrosion spots, oil stains, paint, scratches, and other surface imperfections. These surface imperfections not only degrade the appearance of metal parts but also negatively impact their lifespan, performance, and subsequent processing. Currently, treatment methods such as pickling, chemical spraying, and high-temperature calcination are commonly used. These methods not only lead to chemical, water, and air pollution, increase carbon emissions, and negatively impact the metal itself, but also necessitate the development of pollution-free treatment equipment and methods that minimize impact on the metal itself. Summary of the Invention

[0003] In view of the shortcomings of existing metal surface covering treatment equipment and methods, the present invention has developed a large-scale online thermal spraying equipment based on physical principles, which is low-carbon and environmentally friendly.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A large-scale online thermal spraying device comprises one or more interconnected thermal spraying chambers, wherein a channel is formed in the thermal spraying chamber for workpieces to pass through, a loading device and a diverter are provided at the top of the channel, at least one set of thermal spraying mechanisms including thermal spraying heads are provided on both sides of the channel, and a hopper is provided at the bottom of the channel. The thermal spraying chamber is also provided with a detection sensor and an electric control box for powering and controlling the operation of the equipment.

[0006] The electronic control box obtains the position of the workpiece through the detection sensor, controls the thermal spraying head in the thermal spraying mechanism to move with the workpiece and spray the spray material, so as to thermally spray the covering on the surface of the workpiece. The hopper is used to receive the spray material after spraying and the debris of the workpiece surface covering. The loading device is used to lift the spray material in the hopper back to the top of the thermal spraying chamber and transport it to each thermal spraying mechanism by the diversion device.

[0007] A further improvement is that the device also includes one or more dust removal devices for sucking away the dust in the thermal spraying chamber and filtering and removing it.

[0008] A further improvement is that the thermal spraying mechanism includes a two-axis or three-axis movable platform and a plurality of thermal spraying heads mounted on the movable platform.

[0009] A further improvement is that the mobile platform includes two or three groups of linear modules connected in sequence, a worktable provided on the end linear module, and a support rod provided on the worktable for mounting the thermal spray head, each group of linear modules includes parallel guide rails and lead screws, and a motor connected to one end of the lead screw.

[0010] A further improvement is that the thermal spray head includes a spray head body, a high-pressure nozzle arranged at the front end of the spray head body, a heating pipe and an air supply pipe arranged at the rear end of the spray head body, and a feed pipe connected to the heating pipe, the feed pipe is connected to the diversion device, the heating pipe is used to heat the spray material transported by the feed pipe, the air supply pipe is connected to a high-pressure gas tank, and the high-pressure gas tank stores compressed air with a pressure of 0.6-1.0MPa as a working medium for spray acceleration.

[0011] A further improvement is that the heating tube and the feeding tube are coaxial double-layer structures.

[0012] A further improvement is that mounting ears are provided on the sides of the spray head body.

[0013] A further improvement is that the spray material is made of ceramic particles or metal particles.

[0014] A further improvement is that the ceramic particles are aluminum oxide, silicon oxide, zirconium oxide, silicon carbide, titanium nitride or boron nitride, and the metal particles are copper beads, copper sand or iron sand.

[0015] The beneficial effects of the present invention are: the thermal spraying equipment is based on the physical spraying principle, has a good spraying effect, has a large working space, a high degree of automation, no chemical and water pollution, low air pollution, can realize the recycling of spray materials, is low-carbon and environmentally friendly, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Thermal spraying equipment comprising a thermal spraying chamber;

[0017] Figure 2 Thermal spraying equipment consisting of multiple thermal spraying chambers connected to each other;

[0018] Figure 3 It is a structural diagram of the thermal spraying mechanism;

[0019] Figure 4 It is a structural diagram of a thermal spray head;

[0020] In the figure: 1. Thermal spraying chamber; 11. Loading device; 12. Diverter device; 13. Thermal spraying mechanism; 131. Thermal spraying head; 1311. Spraying head body; 1312. High-pressure nozzle; 1313. Heating tube; 1314. Air supply tube; 1315. Feeding tube; 1316. Mounting ear; 132. Moving platform; 1321. Loading platform; 1322. Support rod; 1323. Guide rail; 1324. Lead screw; 1325. Motor; 14. Hopper; 15. Detection sensor; 16. Electric control box; 17. High-pressure gas tank; 2. Dust removal device. DETAILED DESCRIPTION

[0021] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Combine Figure 1 and Figure 2 The figure shows a large-scale online thermal spraying system with a modular structure, comprising one or more interconnected thermal spraying chambers 1, forming a single-station or multi-station thermal spraying line to meet the requirements of different processes and spraying durations. The thermal spraying chamber 1 has a channel for workpieces to pass through. A loading device 11 and a diverter 12 are located at the top of the channel. At least one thermal spraying mechanism 13, including a thermal spraying head 131, is located on either side of the channel. A hopper 14 is located at the bottom of the channel. The thermal spraying chamber 1 also houses a detection sensor 15 and an electrical control box 16 for powering and controlling the equipment.

[0023] During operation, the metal workpiece to be processed is sent into the channel through the hanging chain. The electric control box 16 obtains the position of the workpiece through the detection sensor 15, and controls the thermal spraying head 131 in the thermal spraying mechanism 13 to move with the workpiece and spray the spray material to thermally spray the covering on the surface of the workpiece. The hopper 14 is used to collect the spray material after spraying and the debris of the workpiece surface covering. The loading device 11 is used to lift the spray material in the hopper 14 back to the top of the thermal spraying chamber 1 and transport it to each thermal spraying mechanism 13 by the diversion device 12.

[0024] Preferably, the device further comprises one or more dust removal devices 2, which are correspondingly installed outside the thermal spray chamber 1 and are used to absorb the dust in the thermal spray chamber 1 and filter and remove it.

[0025] Preferably, the thermal spraying mechanism 13 in the present invention includes a two-axis or three-axis movable platform 132 and a plurality of thermal spraying heads 131 mounted on the movable platform 132 .

[0026] Preferably, the mobile platform 132 of the present invention is used to carry the thermal spray head 131 and follow the workpiece movement, such as Figure 3 As shown, the movable platform 132 includes two or three groups of linear modules connected in sequence, a stage 1321 provided on the end linear module, and a support rod 1322 provided on the stage 1321 for mounting the thermal spray head 131. Each group of linear modules includes a guide rail 1323 and a lead screw 1324 arranged in parallel, and a motor 1325 connected to one end of the lead screw 1324.

[0027] Preferably, Figure 4 As shown, the thermal spraying head 131 in the present invention includes a spraying head body 1311, a high-pressure nozzle 1312 arranged at the front end of the spraying head body 1311, a heating pipe 1313 and an air supply pipe 1314 arranged at the rear end of the spraying head body 1311, and a feed pipe 1315 connected to the heating pipe 1313, the feed pipe 1315 is connected to the diversion device 12, the feed pipe 1315 is used to provide spray material, the heating pipe 1313 is used to heat the spray material transported by the feed pipe 1315, the air supply pipe 1314 is connected to a high-pressure gas tank 17, the high-pressure gas tank 17 stores compressed air with a pressure of 0.6-1.0 MPa as a working medium for spray acceleration, and the high-pressure nozzle 1312 sprays high-temperature and high-speed spray material onto the workpiece surface.

[0028] Preferably, the heating tube 1313 and the feeding tube 1315 in the present invention are coaxial double-layer structures, which are used to heat the spray material quickly and efficiently.

[0029] Preferably, the spray head body 1311 of the present invention is provided with mounting ears 1316 on the side to facilitate installation.

[0030] Preferably, the spraying material in the present invention is ceramic particles or metal particles, wherein the ceramic particles are aluminum oxide, silicon oxide, zirconium oxide, silicon carbide, titanium nitride or boron nitride, and the metal particles are copper beads, copper sand or iron sand.

[0031] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An online large-scale thermal spraying equipment, characterized in that: The device comprises one or more thermal spray chambers (1) connected to each other, wherein a channel for a workpiece to pass through is formed in the thermal spray chamber (1), a loading device (11) and a diversion device (12) are provided at the top of the channel, at least one set of thermal spray mechanisms (13) including a thermal spray head (131) are provided on both sides of the channel, a hopper (14) is provided at the bottom of the channel, and a detection sensor (15) and an electric control box (16) for powering the device and controlling the operation of the device are also provided in the thermal spray chamber (1); The electric control box (16) obtains the position of the workpiece through the detection sensor (15), controls the thermal spray head (131) in the thermal spray mechanism (13) to move with the workpiece and spray the spray material, so as to thermally spray the covering material on the surface of the workpiece. The hopper (14) is used to receive the spray material and the debris of the covering material after spraying. The equipment also includes one or more dust removal devices (2) for sucking away and filtering the dust in the thermal spray chamber (1). The feeding device (11) is used to lift the spray material in the hopper (14) to the top of the thermal spray chamber (1) and transport it to each thermal spray mechanism (13) through the diversion device (12). The dust removal device (2) is installed outside the thermal spray chamber (1) through a bracket and is located between the thermal spray mechanism (13) and the hopper (14); The thermal spraying mechanism (13) includes a two-axis or three-axis moving platform (132) and a plurality of thermal spraying heads (131) mounted on the moving platform (132); The mobile platform (132) includes two or three groups of linear modules connected in sequence, a stage (1321) provided on the end linear module, and a support rod (1322) provided on the stage (1321) for mounting the thermal spray head (131), each group of linear modules includes a guide rail (1323) and a lead screw (1324) arranged in parallel, and a motor (1325) connected to one end of the lead screw (1324); The thermal spray head (131) comprises a spray head body (1311), a high-pressure nozzle (1312) arranged at the front end of the spray head body (1311), a heating pipe (1313) and an air supply pipe (1314) arranged at the rear end of the spray head body (1311), and a feed pipe (1315) connected to the heating pipe (1313), wherein the feed pipe (1315) is connected to the diverter device (12), the heating pipe (1313) is used to heat the spray material transported by the feed pipe (1315), and the air supply pipe (1314) is connected to a high-pressure gas storage tank (17), wherein the high-pressure gas storage tank (17) stores compressed air with a pressure of 0.6-1.0 MPa as a working medium for accelerating the spray material.

2. The large-scale online thermal spraying equipment according to claim 1, characterized in that: The heating tube (1313) and the feeding tube (1315) are coaxial double-layer structures.

3. The large-scale online thermal spraying equipment according to claim 1, characterized in that: The side of the spray head body (1311) is provided with a mounting ear (1316).

4. The large-scale online thermal spraying equipment according to claim 1, characterized in that: The spray material is ceramic particles or metal particles.

5. The large-scale online thermal spraying equipment according to claim 4, characterized in that: The ceramic particles are aluminum oxide, silicon oxide, zirconium oxide, silicon carbide, titanium nitride or boron nitride, and the metal particles are copper beads, copper sand or iron sand.

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