Magnetic suspension stator cable spraying machine

Abstract

The magnetic suspension stator cable spraying machine disclosed in the present invention comprises: a frame and a gas-liquid mixing rotating shaft driving motor, a rotating fan blade driving motor, a spray barrel, a gas-liquid mixing rotating shaft, a rotating fan blade, a paint box and a paint recovery and processing box installed on the frame, and a plurality of atomizing nozzles are circumferentially arranged on the gas-liquid mixing rotating shaft. The rotating gas-liquid mixing rotating shaft drives the atomizing nozzle to rotate and the rotating fan blade to rotate so that the surface of the cable in all directions is evenly coated. During the spraying process, the gas-liquid proportional valve is used to adjust the air pressure according to the requirements to control the spray flow of the atomizing nozzle to ensure the surface coating thickness, and at the same time, the surface smoothness of the cable surface coating is better and the problem of uneven surface caused by dripping caused by the accumulation of paint in the long-term production process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable preparation, and in particular to a magnetic suspension stator cable spraying machine. Background Art

[0002] As a national research and development project, the stator cables for the existing Shanghai 300 km / h and Changsha 120 km / h maglevs are all made of imported cables from Nexans.

[0003] At present, the surface coating of magnetic suspension stator cable has been tested by traditional dipping method, dripping method, die method and paint gun spraying method, but none of them can meet the requirements of continuous cable production. Traditional methods cannot ensure the uniform thickness of the cable outer layer and the smoothness of the surface. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the traditional dipping method, dripping method, die method and paint gun spraying method for the surface coating of the magnetic levitation stator cable cannot meet the continuous production requirements of the cable, and cannot ensure the uniform thickness of the cable outer layer and the smoothness of the surface. A magnetic levitation stator cable spraying machine is provided to solve the problems of uniform thickness of the cable surface coating, surface smoothness, continuity of coating work, and uneven surface caused by dripping caused by paint accumulation during long-term production.

[0005] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0006] Magnetic suspension stator cable spraying machine, including:

[0007] A frame, wherein a motor mounting platform is arranged in the middle of the frame;

[0008] A gas-liquid mixing rotating shaft driving motor and a rotating fan blade driving motor fixedly mounted on the motor mounting platform;

[0009] A spray barrel is fixedly mounted on the upper part of the frame, wherein a first cable passing channel and a rotating fan blade setting channel are coaxially arranged inside the spray barrel along the central axis of the spray barrel;

[0010] The gas-liquid mixing rotating shaft and the rotating fan blade are arranged on the upper part of the frame, the gas-liquid mixing rotating shaft and the rotating fan blade are located at both ends of the axis direction of the spray barrel, and the central axis of the gas-liquid mixing rotating shaft, the central axis of the rotating fan blade and the central axis of the spray barrel are coaxial; the gas-liquid mixing rotating shaft is driven by the gas-liquid mixing rotating shaft driving motor through the gas-liquid mixing rotating shaft transmission mechanism, and the rotating fan blade is driven by the rotating fan blade driving motor through the rotating fan blade transmission mechanism; a plurality of paint channels distributed circumferentially with respect to the central axis of the gas-liquid mixing rotating shaft are arranged in the gas-liquid mixing rotating shaft, and an atomizing nozzle is arranged at the outlet of each paint channel; a paint inlet and a compressed air inlet are arranged at one end of the spray channel away from the outlet; the compressed air inlet is connected to a compressed air source through a compressed air delivery pipeline;

[0011] A second cable passing channel is provided in the gas-liquid mixing rotating shaft along the central axis of the gas-liquid mixing rotating shaft, and the gas-liquid mixing rotating shaft is connected to the spray barrel by a dynamic sealing component; the blade portion of the rotating fan blade is provided in the rotating fan blade setting channel and a third cable passing channel is provided in the rotating fan blade along the central axis of the rotating fan blade, and the third cable passing channel is connected to the second cable passing channel through the first cable passing channel;

[0012] A paint box is arranged on the upper part of the frame, the paint box has a paint outlet, the paint outlet is connected to the paint inlet through a paint delivery pipeline, and the paint delivery pipeline is dynamically sealed to the paint inlet;

[0013] A paint recovery and processing box is arranged at the lower part of the frame, and the paint recovery and processing box is connected with the rotating fan blade setting channel through a paint return pipe to recover excess paint; the paint return pipe and the rotating fan blade setting channel are dynamically sealed.

[0014] In a preferred embodiment of the present invention, a gas-liquid proportional valve is connected in series on the compressed air delivery pipeline.

[0015] In a preferred embodiment of the present invention, the gas-liquid proportional valve is installed at the lower part of the frame.

[0016] In a preferred embodiment of the present invention, the center extension lines of all the atomizing nozzles intersect at the center point of the end surface of the rotating fan blade adjacent to the spray barrel, and the center point is located on the central axis of the rotating fan blade.

[0017] In a preferred embodiment of the present invention, the gas-liquid mixing rotating shaft driving motor, the rotating fan blade driving motor, and the gas-liquid proportional valve are controlled by a PLC control device.

[0018] In a preferred embodiment of the present invention, the gas-liquid mixing rotating shaft and the rotating fan blades are both mounted on the frame via bearings.

[0019] In a preferred embodiment of the present invention, the rotating fan blades are inward rotating fan blades.

[0020] Due to the adoption of the above technical solution, the magnetic suspension stator cable spraying machine of the present invention has the following characteristics compared with the prior art:

[0021] Firstly, the paint is fully atomized by a gas-liquid nozzle and then sprayed on the cable surface. At the same time, the nozzle is rotated by a motor to ensure uniform coating on the cable surface in all directions.

[0022] Secondly, the gas-liquid proportional valve is used to adjust the gas pressure according to requirements to control the spray flow to ensure the surface coating thickness.

[0023] Third, use the rotating fan blades to collect the excess paint and aerosol into the paint recovery box for recycling.

[0024] Fourth, the PLC and touch screen are used to accurately control the rotation speed and spray volume of the atomizing nozzle and the rotation speed of the rotating fan blade to ensure uniform coating of the atomized paint.

[0025] The magnetic suspension stator cable spraying machine of the present invention has perfectly solved the coating process of special materials on the surface of the magnetic suspension stator line through actual use. Through PLC and touch screen, it can realize online automatic control with the main and auxiliary traction linkage of the retractable wire frame. It is generally safe and reliable and harmless to the environment, solving the problem of the last process of the magnetic suspension stator line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the magnetic suspension stator cable spraying machine of the present invention.

[0027] Figure 2 It is a side view of the magnetic suspension stator cable spraying machine of the present invention.

[0028] Figure 3 It is a three-dimensional schematic diagram of the appearance of the magnetic suspension stator cable spraying machine of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 3The magnetic suspension stator cable spraying machine shown in the figure includes a frame 10, a motor mounting platform 20 is arranged in the middle of the frame 10, a spray barrel 30 and a paint box 40 are fixedly mounted on the upper part, and the paint box 40 is located above the spray barrel 30; a paint recovery and processing box 50 is installed at the lower part of the frame 10. In addition, a gas-liquid mixing rotating shaft 60 and a rotating fan blade 70 are installed on the upper part of the frame 10 through a bearing. The rotating fan blade 70 can be an inward rotating fan blade, and of course it is not limited to the inward rotating fan blade. As long as the rotating fan blade has other structural forms with the rotating fan blade 70 of the present invention, it should be within the protection scope of the claims of the present invention.

[0031] A gas-liquid mixing rotating shaft driving motor 80 and a rotating fan blade driving motor 90 are fixedly mounted on both sides of the motor mounting platform 20 .

[0032] The gas-liquid mixing rotating shaft 60 is driven by the gas-liquid mixing rotating shaft driving motor 80 through the gas-liquid mixing rotating shaft transmission mechanism 100. The gas-liquid mixing rotating shaft transmission mechanism 100 is a pulley transmission mechanism, but is certainly not limited to a pulley transmission mechanism. It can also be a chain transmission mechanism, a gear transmission mechanism, or a synchronous wheel transmission mechanism.

[0033] The rotating blade 70 is driven by the rotating blade driving motor 90 through the rotating blade transmission mechanism 110. The rotating blade transmission mechanism 110 is a pulley transmission mechanism, but is certainly not limited to a pulley transmission mechanism, and may also be a chain transmission mechanism, a gear transmission mechanism, or a synchronous wheel transmission mechanism.

[0034] A first cable passing channel 32 and a rotating fan blade setting channel 33 are coaxially arranged in the spray barrel 30 along the central axis 31 of the spray barrel 30 .

[0035] The gas-liquid mixing rotating shaft 60 and the rotating blade 70 are located at both ends of the axial direction of the spray barrel 30 , and the central axis 61 of the gas-liquid mixing rotating shaft 60 , the central axis 71 of the rotating blade 70 , and the central axis 31 of the spray barrel 30 are coaxial.

[0036] The gas-liquid mixing rotating shaft 60 is connected to the spray barrel 30 by a dynamic sealing component. A plurality of paint channels 62 are arranged in the gas-liquid mixing rotating shaft 60 and are evenly distributed circumferentially with the central axis of the gas-liquid mixing rotating shaft 60. These paint channels 62 are arranged in an inclined state, and their center extension lines intersect at the center point 72a of the end face 72 of the rotating fan blade 70 adjacent to the spray barrel 30. The center point 72a is located on the central axis 71 of the rotating fan blade 70.

[0037] An atomizing nozzle 63 is provided at the outlet of each coating channel 62; the center extension line of each atomizing nozzle 63 coincides with the center extension line of the corresponding coating channel 62, and also intersects at the center point 72a of the end surface 72 of the rotating fan blade 70 near the spray barrel 30.

[0038] A paint inlet 64 and a compressed air inlet 65 are provided at one end of the spray channel 62 away from the outlet; the paint outlet 41 of the paint box 40 is connected to the paint inlet 64 through the paint delivery pipeline 42, and the paint delivery pipeline 42 is dynamically sealed with the paint inlet 64. The compressed air inlet 65 is connected to the compressed air source through the compressed air delivery pipeline 66, and the compressed air inlet 65 is also dynamically sealed with the compressed air delivery pipeline 66.

[0039] A gas-liquid proportional valve 67 is connected in series to the compressed air delivery pipeline 66. The gas-liquid proportional valve 67 can adjust the air pressure as required to control the spray flow rate to ensure the surface coating thickness. The gas-liquid proportional valve 67 is installed at the bottom of the frame 10, and can also be installed at any position of the frame 10 or set separately.

[0040] A second cable passing channel 66 is provided in the gas-liquid mixing rotating shaft 60 along the central axis of the gas-liquid mixing rotating shaft 60. The blade portion 73 of the rotating fan blade 70 is provided in the rotating fan blade setting channel 33 and a third cable passing channel 74 is provided in the rotating fan blade 70 along the central axis 71 of the rotating fan blade 70. The third cable passing channel 74 is connected to the second cable passing channel 61 through the first cable passing channel 32, so that during the spraying process, the cable can continuously enter from the second cable passing channel 66, pass through the first cable passing channel 32 of the spraying channel, and exit from the third cable passing channel 74, thus solving the continuity of the cable surface coating work.

[0041] When the cable passes through the first cable through channel 32, the atomized paint sprayed from the atomizing nozzle 63 is sprayed evenly on the surface of the cable at 360°. At the same time, the gas-liquid mixing rotating shaft 60 rotates under the drive of the gas-liquid mixing rotating shaft driving motor 80 and the rotating fan blade 70 drives the rotating fan blade driving motor 90 to rotate. The rotating gas-liquid mixing rotating shaft 60 drives the atomizing nozzle 63 to rotate and the rotating fan blade 70 to rotate so that the surface of the cable in all directions is evenly coated. During the spraying process, the gas-liquid proportional valve 67 is used to adjust the air pressure according to the requirements to control the spray flow of the atomizing nozzle 63 to ensure the surface coating thickness, and at the same time, the surface smoothness of the cable surface coating is better and the problem of uneven surface caused by dripping caused by the accumulation of paint during long-term production is solved.

[0042] The rotary fan blade 70 of the present invention is an inward rotating fan blade. The inward rotating fan blade can be used to collect excess paint and aerosol into a paint recovery and processing box 50. The paint recovery and processing box 50 is connected to the rotary fan blade setting channel 33 through a paint return pipe 51 to recover excess paint and aerosol and collect them into the paint; the paint return pipe 51 and the rotary fan blade setting channel 33 are dynamically sealed.

[0043] In addition, the gas-liquid mixing rotating shaft drive motor 80, the rotating fan blade drive motor 90, and the gas-liquid proportional valve 67 of the present invention are controlled by a PLC control device (not shown in the figure). In this way, the rotation speed and spray volume of the atomizing nozzle 63 and the rotation speed of the rotating fan blade 70 are accurately controlled by the PLC and the touch screen to ensure uniform coating of the atomized paint.

Claims

1. Magnetic suspension stator cable spraying machine, characterized in that: include: A frame, wherein a motor mounting platform is arranged in the middle of the frame; A gas-liquid mixing rotating shaft driving motor and a rotating fan blade driving motor fixedly mounted on the motor mounting platform; A spray barrel is fixedly mounted on the upper part of the frame, wherein a first cable passing channel and a rotating fan blade setting channel are coaxially arranged inside the spray barrel along the central axis of the spray barrel; The gas-liquid mixing rotating shaft and the rotating fan blade are arranged on the upper part of the frame, the gas-liquid mixing rotating shaft and the rotating fan blade are located at both ends of the axis direction of the spray barrel, and the central axis of the gas-liquid mixing rotating shaft, the central axis of the rotating fan blade and the central axis of the spray barrel are coaxial; the gas-liquid mixing rotating shaft is driven by the gas-liquid mixing rotating shaft driving motor through the gas-liquid mixing rotating shaft transmission mechanism, and the rotating fan blade is driven by the rotating fan blade driving motor through the rotating fan blade transmission mechanism; a plurality of paint channels distributed circumferentially with respect to the central axis of the gas-liquid mixing rotating shaft are arranged in the gas-liquid mixing rotating shaft, and an atomizing nozzle is arranged at the outlet of each paint channel; a paint inlet and a compressed air inlet are arranged at one end of the spray channel away from the outlet; the compressed air inlet is connected to a compressed air source through a compressed air delivery pipeline; A second cable passing channel is provided in the gas-liquid mixing rotating shaft along the central axis of the gas-liquid mixing rotating shaft, and the gas-liquid mixing rotating shaft is connected to the spray barrel by a dynamic sealing component; the blade portion of the rotating fan blade is provided in the rotating fan blade setting channel and a third cable passing channel is provided in the rotating fan blade along the central axis of the rotating fan blade, and the third cable passing channel is connected to the second cable passing channel through the first cable passing channel; A paint box is arranged on the upper part of the frame, the paint box has a paint outlet, the paint outlet is connected to the paint inlet through a paint delivery pipeline, and the paint delivery pipeline is dynamically sealed to the paint inlet; A paint recovery and processing box is arranged at the lower part of the frame, and the paint recovery and processing box is connected with the rotating fan blade setting channel through a paint return pipe to recover excess paint; the paint return pipe and the rotating fan blade setting channel are dynamically sealed.

2. The magnetic suspension stator cable spraying machine according to claim 1, characterized in that: A gas-liquid proportional valve is connected in series on the compressed air delivery pipeline.

3. The magnetic suspension stator cable spraying machine according to claim 2, characterized in that: The gas-liquid proportional valve is installed at the lower part of the frame.

4. The magnetic suspension stator cable spraying machine according to any one of claims 1 to 3, characterized in that: The center extension lines of all the atomizing nozzles intersect at the center point of the end surface of the rotating fan blade adjacent to the spray barrel, and the center point is located on the central axis of the rotating fan blade.

5. The magnetic suspension stator cable spraying machine according to claim 4, characterized in that: The gas-liquid mixing rotating shaft driving motor, the rotating fan blade driving motor and the gas-liquid proportional valve are controlled by a PLC control device.

6. The magnetic suspension stator cable spraying machine according to claim 1, characterized in that: The gas-liquid mixing rotating shaft and the rotating fan blades are both mounted on the frame via bearings.

7. The magnetic suspension stator cable spraying machine according to claim 6, characterized in that: The rotating fan blades are inward rotating fan blades.

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