Online steel surface automatic atomization spraying device and using method thereof

Abstract

The invention relates to the technical field of steel blank machining, in particular to an online steel surface automatic atomization spraying device and a using method thereof. The on-line steel surface automatic atomization spraying device comprises a spraying workbench, spraying pipes, a discharging mechanism, a gas conveying mechanism and an integrated control box, a grating sensor is arranged on the table top of the spraying workbench, and pipe outlets of the four spraying pipes all face the table top of the spraying workbench obliquely and downwards; and the four spraying pipes are arranged at the four corners of the table top of the spraying workbench in a one-to-one correspondence mode, pipe inlets of the four spraying pipes are connected with the discharging mechanism and the gas conveying mechanism at the same time, and the discharging mechanism, the gas conveying mechanism and the grating sensor are all in signal connection with the integrated control box. The device can improve the spraying efficiency and ensure the uniform spraying effect.

Description

Technical Field

[0001] The present invention relates to the technical field of steel billet processing, and particularly relates to an on-line automatic atomizing spraying device for the surface of steel, and a using method of the spraying device. Background Art

[0002] After the steel billet processing is completed, it is often necessary to perform surface spraying treatment on it. By spraying materials on the surface of the steel, the steel can obtain better performance. At present, a spraying machine is generally used to spray the steel billet, but since the spraying machine needs to be manually operated to spray the steel billet, it not only consumes manpower and time, but also has low efficiency, and at the same time, it cannot ensure the uniformity of the spraying effect. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an on-line automatic atomizing spraying device for the surface of steel that can improve the spraying efficiency and ensure the uniformity of the spraying effect.

[0004] The present invention adopts the following technical solutions:

[0005] The present invention provides an on-line automatic atomizing spraying device for the surface of steel, including a spraying workbench, spraying pipes, a blanking mechanism, an air delivery mechanism, and an integrated control box. A grating sensor is provided on the tabletop of the spraying workbench. The outlet nozzles of the four spraying pipes are all inclined downward towards the tabletop of the spraying workbench, and the four spraying pipes are respectively arranged at the four corner positions of the tabletop of the spraying workbench. The inlet nozzles of the four spraying pipes are simultaneously connected to the blanking mechanism and the air delivery mechanism. The blanking mechanism, the air delivery mechanism, and the grating sensor are all connected to the integrated control box in signal.

[0006] Preferably, the blanking mechanism includes a stirring tank, a diaphragm pump, and a screw pump. The discharge port of the stirring tank is connected to the inlet port of the diaphragm pump through a feed pipe, and a control valve is installed in the feed pipe. The discharge port of the diaphragm pump is connected to the inlet ports of the four screw pumps through a discharge pipe. The discharge port of each screw pump is respectively connected to the inlet nozzle of a spraying pipe. The stirring tank, the diaphragm pump, the screw pump, and the control valve are all connected to the integrated control box in signal.

[0007] Preferably, a driving motor is fixedly installed at the upper end of the stirring tank, a stirring assembly is installed inside the stirring tank, the driving motor is connected to the stirring assembly, and the driving motor is connected to the integrated control box in signal.

[0008] Preferably, the discharge pipe is connected with four blanking pipes, and each blanking pipe is respectively connected to the inlet port of a screw pump.

[0009] Preferably, the discharge port of each screw pump is connected to the inlet nozzle of a spraying pipe through a discharge pipe, and a one-way check valve is installed in the discharge pipe.

[0010] Preferably, the air delivery mechanism includes a gas storage tank, an intake pipe, and an outlet pipe. The air outlet of the gas storage tank is connected to the air inlet of the intake pipe. The air outlet of the intake pipe is connected to the inlet ports of four spraying pipes through the outlet pipe. First solenoid valves are respectively installed at the connection positions of the outlet pipe with the inlet ports of the four spraying pipes, and the four first solenoid valves are all in signal connection with the integrated control box.

[0011] Preferably, the diaphragm pump is a pneumatic diaphragm pump, and the intake pipe is connected to the high-pressure air inlet of the pneumatic diaphragm pump through a first shunt pipe.

[0012] Preferably, the first shunt pipe is connected to the feed pipe through a second shunt pipe, and a second solenoid valve is installed in the second shunt pipe. The second solenoid valve is in signal connection with the integrated control box.

[0013] The present invention also provides a usage method of the above online automatic atomizing spraying device for the steel surface, which is used in coordination with the steel billet conveying roller table, including the following steps:

[0014] S1: Start the steel billet conveying roller table to uniformly convey the whole steel billet along the length direction above the tabletop of the spraying workbench;

[0015] S2: When the steel billet moves directly above the grating sensor, the integrated control box receives the steel billet in-place signal from the grating sensor, and automatically controls the feeding mechanism to feed materials into the inlet ports of the spraying pipes and the air delivery mechanism to deliver air into the inlet ports of the spraying pipes, so that the coating is quickly atomized under the blowing of the air flow and is evenly sprayed on the surface of the steel billet from the outlet ports of the spraying pipes;

[0016] S3: After the end of the steel billet moves out from directly above the grating sensor, the integrated control box receives the spraying end signal from the grating sensor, controls the feeding mechanism to stop feeding materials into the inlet ports of the spraying pipes, and the air delivery mechanism to stop delivering air into the inlet ports of the spraying pipes, thus completing the spraying.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The online automatic atomizing spraying device for the steel surface of the present invention can detect the position of the steel billet through the grating sensor. After detecting that the steel billet is above the tabletop of the spraying workbench, the grating sensor will send a steel billet in-place signal to the integrated control box. After receiving the steel billet in-place signal, the integrated control box automatically controls the feeding mechanism and the air delivery mechanism to work, realizing the surface spraying treatment of the steel billet, effectively replacing the spraying method of manually operating the spraying machine, and saving manpower and time;

[0019] Meanwhile, after the coating material is fed into the spraying pipe by the feeding mechanism, it is atomized by the high-pressure air flow conveyed by the air conveying mechanism and sprayed out from the four spraying pipes arranged at the four corner positions of the tabletop of the spraying workbench, so that the spraying effect can be more uniform.

[0020] Since the usage method of the on-line automatic atomizing spraying device for steel surface of the present invention uses the above-mentioned on-line automatic atomizing spraying device for steel surface, it naturally has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the on-line automatic atomizing spraying device for steel surface in an embodiment of the present invention.

[0022] Figure 2 is a circuit layout diagram of the integrated control box on the on-line automatic atomizing spraying device for steel surface in an embodiment of the present invention.

[0023] Among them, the description of the reference numerals is as follows:

[0024] 1. Stirring tank 9. Discharge pipe

[0025] 2. Driving motor 10. Steel billet

[0026] 3. Air storage tank 11. Spraying workbench

[0027] 4. Air inlet pipe 12. Feeding pipe

[0028] 5. Diaphragm pump 13. First shunt pipe

[0029] 6. Screw pump 14. Second shunt pipe

[0030] 7. Air outlet pipe 15. Feed pipe

[0031] 8. Spraying pipe 16. Discharge pipe DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] See Figure 1 , this embodiment provides an on-line automatic atomizing spraying device for the surface of steel, which includes a spraying workbench 11, spraying pipes 8, a blanking mechanism, a gas transmission mechanism, and an integrated control box. A grating sensor is provided on the tabletop of the spraying workbench 11. The outlet nozzles of the four spraying pipes 8 are all inclined downward towards the tabletop of the spraying workbench 11, and the four spraying pipes 8 are respectively arranged at the four corner positions of the tabletop of the spraying workbench 11. The inlet nozzles of the four spraying pipes 8 are simultaneously connected to the blanking mechanism and the gas transmission mechanism. The blanking mechanism, the gas transmission mechanism, and the grating sensor are all signal-connected to the integrated control box.

[0037] The on-line automatic atomizing spraying device of this embodiment can detect the position of the steel billet 10 through the grating sensor. After detecting that the steel billet 10 is above the tabletop of the spraying workbench 11, the grating sensor will send a signal of the steel billet in place to the integrated control box. After receiving the signal of the steel billet in place, the integrated control box automatically controls the blanking mechanism and the gas transmission mechanism to work, realizing the spraying treatment of the surface of the steel billet 10, effectively replacing the spraying method of manually operating the spraying machine, and saving manpower and time;

[0038] Meanwhile, after the coating material is fed into the spraying pipe 8 by the feeding mechanism, it is atomized by the high-pressure air flow conveyed by the air conveying mechanism and sprayed out from the four spraying pipes 8 arranged at the four corner positions of the tabletop of the spraying workbench 11, so that the spraying effect can be more uniform.

[0039] Preferably, referring to Figure 1 , the feeding mechanism includes a stirring tank 1, a diaphragm pump 5 and a screw pump 6. The discharge port of the stirring tank 1 is connected to the inlet port of the diaphragm pump 5 through a feed pipe 15, and a control valve is installed in the feed pipe 15. The discharge port of the diaphragm pump 5 is connected to the inlet ports of the four screw pumps 6 through a discharge pipe 16. The discharge port of each screw pump 6 is respectively connected to the inlet pipe orifice of a spraying pipe 8. The stirring tank 1, the diaphragm pump 5, the screw pump 6 and the control valve are all connected to the integrated control box in signal.

[0040] Among them, the stirring tank 1 can stir and mix the coating material, the diaphragm pump 5 can ensure that the coating material in the stirring tank 1 is fed at a stable rate, the screw pump 6 can realize the stable transportation of the coating material from the discharge pipe 16 to the spraying pipe 8, and the setting of the control valve in the feed pipe 15 can control the on-off of the feed pipe 15.

[0041] Preferably, referring to Figure 1 , a driving motor 2 is fixedly installed at the upper end of the stirring tank 1. A stirring assembly is installed inside the stirring tank 1. The driving motor 2 is connected to the stirring assembly and is connected to the integrated control box in signal.

[0042] The integrated control box can control the rotation of the driving motor 2, and then drive the stirring assembly inside the stirring tank 1 to rotate, so as to realize the stirring and mixing process of the coating material.

[0043] Preferably, referring to Figure 1 , the discharge pipe 16 is connected with four feed pipes 12, and each feed pipe 12 is respectively connected to the inlet port of a screw pump 6.

[0044] Preferably, referring to Figure 1 , the discharge port of each screw pump 6 is connected to the inlet pipe orifice of a spraying pipe 8 through a discharge pipe 9, and a one-way check valve is installed in the discharge pipe 9.

[0045] The setting of the one-way check valve in the discharge pipe 9 can not only prevent the coating material from flowing back, but also prevent the air flow from flowing back into the discharge pipe 9 when the air outlet pipe 7 conveys air to the spraying pipe 8, thereby having an adverse effect on the screw pump 6.

[0046] Preferably, referring to Figure 1The gas delivery mechanism includes a gas storage tank 3, an air inlet pipe 4 and an air outlet pipe 7. The air outlet of the gas storage tank 3 is connected to the air inlet of the air inlet pipe 4. The air outlet of the air inlet pipe 4 is simultaneously connected to the inlets of four spray pipes 8 through the air outlet pipe 7. The air outlet pipe 7 is respectively installed with a first solenoid valve at the connection position with the inlet of the four spray pipes 8. The four first solenoid valves are all connected to the integrated control box signal.

[0047] Among them, the gas tank 3 is used as the high-pressure gas source, and the air inlet pipe 4 and the air outlet pipe 7 are used as air flow channels. The high-pressure airflow enters the spray pipe 8 from the gas tank 3 through the air inlet pipe 4 and the air outlet pipe 7, and then blows and atomizes the paint in the spray pipe 8; and the first solenoid valve can control the on and off connection between the air outlet pipe 7 and the spray pipe 8.

[0048] Preferably, see Figure 1 The diaphragm pump 5 is a pneumatic diaphragm pump, and the air inlet pipe 4 is connected to the high-pressure air inlet of the pneumatic diaphragm pump through the first shunt pipe 13. The first shunt pipe 13 is provided so that the air storage tank 3 can also be used as a power source for the pneumatic diaphragm pump, and the pneumatic diaphragm pump no longer needs to be connected to a new external power source, which is conducive to simplifying the structure.

[0049] Preferably, see Figure 1 The first shunt pipe 13 is connected to the feed pipe 15 through the second shunt pipe 14, and a second solenoid valve is installed in the second shunt pipe 14, and the second solenoid valve is connected to the integrated control box signal.

[0050] When the mixing tank 1 needs to be cleaned, the air storage tank 3 can be connected to the mixing tank 1 by opening the control valve in the feed pipe 15 and the second solenoid valve in the second diversion pipe 14, and the cleaning of the mixing tank 1 can be assisted by delivering high-pressure airflow into the mixing tank 1.

[0051] Preferably, due to the presence of the integrated control box, in this embodiment, the online steel surface automatic atomization spraying device has two working modes: manual operation mode and automatic operation mode:

[0052] (I) Manual operation mode

[0053] Start: See Figure 2, adjust the SA1 changeover switch to state 1 in the integrated control box; then press the start button SB2 to energize the coil of the KA1 intermediate relay, and the normally open contact of the KA1 intermediate relay closes; afterwards, the coil of the KT1 time relay is energized, and the normally closed contact of the KT2 time relay closes; then the coils of the KA2, KA3, KA4, and KA5 intermediate relays are energized, and the gas transmission mechanism starts to inject gas into the spraying pipe 8; after the KT1 time relay delays for 5 seconds, the coils of the KA1 intermediate relay, KM2, KM3, and KM4 contactors are energized, and the KM1, KM2, KM3, and KM4 contactors close, the screw pump 6 operates, and the spraying pipe 8 starts spraying.

[0054] Stop: Refer to Figure 2 , press the stop button SB1 to de-energize the coil of the KA1 intermediate relay; then after the KT3 time relay coil de-energizes and delays for 5 seconds, the coils of the KM1, KM2, KM3, and KM4 contactors are de-energized, the KM1, KM2, KM3, and KM4 contactors open, the screw pump 6 shuts down, and the spraying pipe 8 stops spraying; afterwards, after the KT2 time relay coil de-energizes and delays for 5 seconds, the KA2, KA3, KA4, and KA5 intermediate relays are de-energized, and the gas transmission mechanism stops injecting gas.

[0055] (2) Automatic operation mode

[0056] Start: Refer to Figure 2 , adjust the SA1 changeover switch to state 2 in the integrated control box. If the grating sensor detects the steel billet 10, the coil of the KA1 intermediate relay is energized, and the normally open contact of the KA1 intermediate relay closes; afterwards, the coil of the KT1 time relay is energized, and the normally closed contact of the KT2 time relay closes; then the coils of the KA2, KA3, KA4, and KA5 intermediate relays are energized, and the gas transmission mechanism starts to inject gas into the spraying pipe 8; after the KT1 time relay delays for 5 seconds, the coils of the KA1 intermediate relay, KM2, KM3, and KM4 contactors are energized, the KM1, KM2, KM3, and KM4 contactors close, the screw pump 6 operates, and the spraying pipe 8 starts spraying.

[0057] This embodiment also provides a usage method of the above-mentioned on-line automatic atomized spraying device for the steel surface, which is used in coordination with the steel billet transport roller table, including the following steps:

[0058] S1: Start the steel billet transport roller table to uniformly convey the whole steel billet 10 along the length direction above the tabletop of the spraying workbench 11;

[0059] S2: When the steel billet 10 moves directly above the grating sensor, the integrated control box receives the signal indicating the arrival of the steel billet from the grating sensor, and automatically controls the blanking mechanism to feed materials into the inlet of the spraying pipe 8 and the air supply mechanism to supply air to the inlet of the spraying pipe 8, so that the coating is rapidly atomized under the blowing of the air flow and is evenly sprayed on the surface of the steel billet 10 from the outlet of the spraying pipe 8;

[0060] S3: When the end of the steel billet 10 moves out from directly above the grating sensor, the integrated control box receives the spraying end signal from the grating sensor, controls the blanking mechanism to stop feeding materials into the inlet of the spraying pipe 8 and the air supply mechanism to stop supplying air to the inlet of the spraying pipe 8, and completes the spraying.

[0061] Since the method for using the on-line automatic atomizing spraying device for the steel surface in this embodiment uses the above-mentioned on-line automatic atomizing spraying device for the steel surface, it naturally has the above-mentioned beneficial effects.

[0062] And a specific method for using the above-mentioned on-line automatic atomizing spraying device for the steel surface is as follows:

[0063] When the steel billet 10 is conveyed to the spraying workbench 11 through the steel billet conveying roller path, it is detected by the grating sensor whether it is conveyed in place. If it is detected that it is conveyed in place, under the control of the integrated control box, the diaphragm pump 5 conveys the coating stirred in the stirring tank 1 from the feed pipe 15 to the discharge pipe 16 and each blanking pipe 12 in sequence, and after being conveyed by each screw pump 6, it enters the spraying pipe 8 through the discharge pipe 9;

[0064] Meanwhile, the first electromagnetic valve in the air outlet pipe 7 is opened, and the high-pressure air flow in the air storage tank 3 is also conveyed to the spraying pipe 8. In this way, the coating can be rapidly atomized under the blowing action of the high-pressure air flow and is evenly sprayed on the surface of the steel billet 10. When the steel billet 10 moves to a position where it cannot be detected by the grating sensor, the screw pump 6 and the first electromagnetic valve in the air outlet pipe 7 lose power and close, and the spraying of the entire steel billet 10 is completed, thereby realizing automatic spraying.

[0065] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An online automatic atomizing spraying device for steel surface, Characterized in that, It includes a spraying workbench (11), a spraying pipe (8), a feeding mechanism, a gas transmission mechanism and an integrated control box. A grating sensor is provided on the tabletop of the spraying workbench (11). The outlet nozzles of the four spraying pipes (8) are all inclined downward towards the tabletop of the spraying workbench (11), and the four spraying pipes (8) are respectively arranged at the four corner positions of the tabletop of the spraying workbench (11). The inlet nozzles of the four spraying pipes (8) are simultaneously connected to the feeding mechanism and the gas transmission mechanism. The feeding mechanism, the gas transmission mechanism and the grating sensor are all signal-connected to the integrated control box.

2. The online automatic atomizing spraying device for steel surface according to claim 1, Characterized in that, The feeding mechanism includes a stirring tank (1), a diaphragm pump (5) and a screw pump (6). The discharge port of the stirring tank (1) is connected to the inlet port of the diaphragm pump (5) through a feed pipe (15), and a control valve is installed in the feed pipe (15). The discharge port of the diaphragm pump (5) is connected to the inlet ports of the four screw pumps (6) through a discharge pipe (16). The discharge port of each screw pump (6) is respectively connected to the inlet nozzle of a spraying pipe (8). The stirring tank (1), the diaphragm pump (5), the screw pump (6) and the control valve are all signal-connected to the integrated control box.

3. The online automatic atomizing spraying device for steel surface according to claim 2, Characterized in that, A driving motor (2) is fixedly installed at the upper end of the stirring tank (1). A stirring assembly is installed inside the stirring tank (1). The driving motor (2) is connected to the stirring assembly. The driving motor (2) is signal-connected to the integrated control box.

4. The online automatic atomizing spraying device for steel surface according to claim 2, Characterized in that, Four feed pipes (12) are connected to the discharge pipe (16). The discharge port of each screw pump (6) is respectively connected to the inlet port of a spraying pipe (8).

5. The online automatic atomizing spraying device for steel surface according to claim 2, Characterized in that, The discharge port of each screw pump (6) is connected to the inlet nozzle of a spraying pipe (8) through a discharge pipe (9), and a one-way check valve is installed in the discharge pipe (9).

6. The online automatic atomizing spraying device for steel surface according to claim 2, Characterized in that, The gas transmission mechanism includes a gas storage tank (3), an inlet pipe (4) and an outlet pipe (7). The gas outlet of the gas storage tank (3) is connected to the gas inlet of the inlet pipe (4). The gas outlet of the inlet pipe (4) is simultaneously connected to the inlet nozzles of the four spraying pipes (8) through the outlet pipe (7). First solenoid valves are respectively installed at the connection positions of the outlet pipe (7) with the inlet nozzles of the four spraying pipes (8). The four first solenoid valves are all signal-connected to the integrated control box.

7. The online automatic atomizing spraying device for steel surface according to claim 6, Characterized in that, The diaphragm pump (5) is a pneumatic diaphragm pump, and the air inlet pipe (4) is connected to the high-pressure air inlet of the pneumatic diaphragm pump through a first shunt pipe (13).

8. The on-line automatic atomizing spraying device for the steel surface according to claim 7, wherein, the first shunt pipe (13) is connected to the feed pipe (15) through a second shunt pipe (14), and a second solenoid valve is installed in the second shunt pipe (14), and the second solenoid valve is in signal connection with the integrated control box.

9. The using method of the on-line automatic atomizing spraying device for the steel surface according to any one of claims 1-8, wherein, The on-line automatic atomizing spraying device for the steel surface is used in coordination with the billet conveying roller table, including the following steps: S1: Start the billet conveying roller table to uniformly convey the whole steel billet (10) along the length direction above the table surface of the spraying workbench (11); S2: When the steel billet (10) moves directly above the grating sensor, the integrated control box receives the billet in-place signal of the grating sensor, and automatically controls the blanking mechanism to feed materials into the inlet of the spraying pipe (8) and the air conveying mechanism to convey air into the inlet of the spraying pipe (8), so that the coating is quickly atomized under the blowing of the air flow and is uniformly sprayed on the surface of the steel billet (10) from the outlet of the spraying pipe (8); S3: When the end of the steel billet (10) moves out from directly above the grating sensor, the integrated control box receives the spraying end signal of the grating sensor, controls the blanking mechanism to stop feeding materials into the inlet of the spraying pipe (8) and the air conveying mechanism to stop conveying air into the inlet of the spraying pipe (8), and completes the spraying.

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