Steel pipe spraying machine

Abstract

The invention discloses a steel pipe spraying machine, which is characterized in that it comprises a machine body, wherein the machine body is provided with a paint spraying area, a transition area, and an air knife recovery area, an oil ring nozzle group is installed on the inner side of the machine body, a recovery air duct is installed on the outer side of the machine body, the collection air duct has a self-coagulation net, and when collecting exhaust gas in the machine, the paint in the exhaust gas can be automatically condensed and flowed back to the paint box for continued use, the recovery air duct is connected with the top of the machine body, a fan recovery box is installed at the bottom of the recovery air duct, the fan recovery box discharges the preliminarily filtered exhaust gas into the recovery box for sedimentation and filtration, and discharges after purification, and an inspection port is installed on the front surface of the machine body; by designing the present application, paint is supplied to the nozzle and excess paint is recovered and filtered, the paint is not atomized during use, and through precise positioning spraying, no paint drips on the ground, the paint utilization rate can reach 95%, and one kilogram of the same paint can spray 14-18 square meters when the paint film thickness is 20μ.

Description

Technical Field

[0001] The invention belongs to the technical field of spraying machines, and in particular relates to a steel pipe spraying machine. Background Art

[0002] At present, the main equipment for steel pipe painting are high-pressure airless spraying, which atomizes the paint particles and sprays them directly on the surface of the steel pipe, and ordinary spraying. Among them, high-pressure airless spraying will atomize the paint, waste a lot of paint, and pollute the atmosphere. The paint utilization rate can only reach 40%-60%. One kilogram of paint can only be sprayed on 5-10 square meters, and the paint film thickness is 20μ. For ordinary spraying, with the same paint film thickness, one kilogram of paint can be sprayed on 8-12 square meters, but it needs to be equipped with 0.5 kilograms of thinner, and the ground is also very easy. For this reason, we proposed the steel pipe sprayer. Summary of the invention

[0003] The object of the present invention is to provide a steel pipe spraying machine to solve the problem of low paint utilization rate proposed in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a steel pipe spraying machine, characterized in that it includes a machine body, wherein the machine body has a paint spraying area, a transition area, and a wind knife recovery area, an oil ring nozzle group is installed on the inner side of the machine body, and a recovery air duct is installed on the outer side of the machine body. The collection air duct has a condensation net, which can automatically condense the paint in the exhaust gas when collecting the exhaust gas in the machine, and flow it back to the paint box for continued use. The recovery air duct is connected to the top of the machine body, and a fan recovery box is installed at the bottom of the recovery air duct. The fan recovery box discharges the preliminarily filtered exhaust gas into the recovery box for sedimentation and filtration, and discharges it after purification. An inspection port is installed on the front surface of the machine body. A front collecting hood is installed on the side wall of the machine body, and the front recovery hood can recover overflowed paint to ensure that the ground is clean. A standard gate is installed at a position corresponding to the front collecting hood on the inner side of the machine body, and a gate is installed on the inner side of the machine body. A transition wheel for the smooth passage of steel pipes is installed on the inner side of the machine body, and the transition wheels constitute a transition zone. A wind knife that can blow off and flatten excess paint on the surface of the steel pipe is installed on the inner side of the machine body. The wind knife blows excess paint on the steel pipe to the wind knife recovery zone, and the thickness of the paint film on the steel pipe can be adjusted by the wind force of the wind knife. An oil tank paint supply system is installed at the bottom of the machine body, which is used for supplying paint to the oil ring nozzle group and recovering and filtering excess paint.

[0005] Preferably, the oil tank paint supply system includes a paint box, which is convenient for maintenance and replacement of paint types.

[0006] Preferably, the gate is used to isolate the internal area of ​​the machine body to ensure the independence of the wind knife recovery area, the transition area, and the spraying area.

[0007] Preferably, the oil ring of the sprayer adopts a wide-angle nozzle to form a paint curtain without changing the shape of the paint, thereby reducing paint volatilization, and the excess paint can automatically flow back to the paint box.

[0008] Preferably, the gate is an automatic double-opening gate.

[0009] Preferably, the wind knife recovery zone and the transition zone have recovery air outlets.

[0010] Preferably, the paint spraying area, transition area, and air knife recovery area all have partitions and double-opening gates, which can ensure that the paint is relatively sealed in the machine body and reduce the volatilization and overflow of paint and thinner.

[0011] Preferably, the paint box provides sufficient paint to the oil ring nozzle assembly through a diaphragm pump and automatically filters and recycles the paint.

[0012] Preferably, the machine body has a rectangular appearance and is fully enclosed, with only two circular inlet and outlet openings for steel pipes.

[0013] Preferably, the air knife has a self-cleaning function, and the cleaning agent enters the air knife through a pipeline and is blown out by high-pressure air to clean the air knife.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by designing the present application, paint is supplied to the nozzle and excess paint is recovered and filtered, the paint is not atomized during use, and through precise positioning spraying, there is no paint dripping on the ground, and the paint utilization rate can reach 95%. One kilogram of the same paint can spray 14-18 square meters when the paint film thickness is 20μ. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 A top view of the present invention;

[0018] Figure 3 is a side view of the present invention;

[0019] Figure 4 It is a rear view of the present invention;

[0020] In the figure: 1. Machine body; 2. Inspection port; 3. Front collection hood; 4. Standard gate; 5. Gate; 6. Oil ring nozzle assembly; 7. Transition wheel; 8. Recovery air duct; 9. Air knife; 10. Fan recovery box; 11. Oil tank paint supply system. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 cannot be understood as a limitation on the present invention.

[0023] Reference Figure 1-Figure 4 A technical solution proposed by the present invention: a steel pipe spraying machine includes a machine body 1, which adopts a rectangular appearance, is fully enclosed, and has only two steel pipe inlet and outlet circular openings. The machine body 1 has a paint spraying area, a transition area, and a wind knife recovery area. An oil ring nozzle group 6 is installed on the inner side of the machine body 1, and a recovery air duct 8 is installed on the outer side of the machine body 1. The collection air duct 8 has a condensation net. When collecting the exhaust gas in the machine, the paint in the exhaust gas can be automatically condensed and flowed back to the paint box for continued use. The recovery air duct 8 is connected to the top of the machine body 1, and a fan recovery box 10 is installed at the bottom of the recovery air duct 8. The fan recovery box 10 discharges the preliminarily filtered exhaust gas into the recovery box for sedimentation and filtration, and is discharged after purification. An inspection port 2 is installed on the front surface of the machine body 1, and a front collection cover 3 is installed on the side wall of the machine body 1. The front recovery cover 3 can recover overflowed paint to ensure that the ground is clean. A standard gate is installed at the position corresponding to the front collection cover 3 on the inner side of the machine body 1 4. A gate 5 is installed on the inner side of the machine body 1. The gate 5 is an automatic gate that opens in opposite directions. The gate 5 is used to isolate the inner area of ​​the machine body 1 to ensure the independence of the wind knife recovery area, the transition area, and the spraying area. A transition wheel 7 is installed on the inner side of the machine body 1 for the steel pipe to pass smoothly. The transition wheel 7 constitutes a transition area. A wind knife 9 is installed on the inner side of the machine body 1 for blowing off and flattening the excess paint on the surface of the steel pipe. The wind knife 9 blows the excess paint on the steel pipe to the wind knife recovery area. The thickness of the paint film on the steel pipe can be adjusted by the wind force of the wind knife. An oil tank paint supply system 11 is installed at the bottom of the machine body 1 for supplying paint to the oil ring nozzle group 6 and recovering and filtering excess paint. In this application, paint is supplied to the nozzle and excess paint is recovered and filtered. The paint is not atomized during use. Through precise positioning spraying, there is no paint dripping on the ground. The paint utilization rate can reach 95%. One kilogram of the same paint can spray 14-18 square meters under the condition of a paint film thickness of 20μ.

[0024] The oil tank paint supply system 11 includes a paint box, which provides sufficient paint to the oil ring nozzle group 6 through a diaphragm pump and automatically filters and recycles the paint, which is convenient for maintenance and replacement of paint types.

[0025] The oil ring of the spray machine adopts a wide-angle nozzle, which forms a paint curtain without changing the shape of the paint, reduces paint volatilization, and the excess paint can automatically flow back to the paint box.

[0026] The air knife recovery zone and transition zone are provided with recovery air ports.

[0027] The paint spraying area, transition area and air knife recovery area are all provided with partitions and double-opening gates 5, which can ensure that the paint is relatively sealed in the machine body 1 and reduce the volatilization and overflow of paint and thinner.

[0028] The air knife 9 has a built-in cleaning function. The cleaning agent enters the air knife through a pipeline and is blown out by high-pressure air to clean the air knife.

[0029] The working principle and use process of the present invention are as follows: during the process of spraying steel pipes by the sprayer, when the steel pipe passes through the sprayer, it first passes through the front recovery cover and then passes through the gate 5. When it passes through the paint spraying ring, the nozzle of the spray ring group is automatically opened through the control system to spray paint around the steel pipe. When the steel pipe continues to pass through the transition zone, it is transported by wheels. The steel pipe passes through the wind knife 9 at the same height. The wind knife 9 blows the excess paint on the steel pipe back into the machine body 1 to complete the spraying. The machine body 1 recovers the excess paint and sends it to the paint box for filtration through a pipeline for recycling. The air duct recovery system filters and recovers the waste gas and waste paint generated by the paint spraying. The waste paint flows into the paint box after recovery for recycling. The waste gas is filtered and discharged. By designing this application, paint is supplied to the nozzle and excess paint is recovered and filtered. The paint is not atomized during use. By precisely positioning the spraying, there is no paint dripping on the ground. The paint utilization rate can reach 95%. One kilogram of the same paint can spray 14-18 square meters when the paint film thickness is 20μ.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Steel pipe spraying machine, characterized in that, The invention comprises a machine body (1), wherein the machine body (1) has a paint spraying area, a transition area, and an air knife recovery area. An oil ring nozzle group (6) is installed on the inner side of the machine body (1), and a recovery air duct (8) is installed on the outer side of the machine body (1). The collection air duct (8) has a condensation net, and when collecting the exhaust gas in the machine, the paint in the exhaust gas can be automatically condensed and flowed back to the paint box for continued use. The recovery air duct (8) is connected to the top of the machine body (1), and a fan recovery box (10) is installed at the bottom of the recovery air duct (8). The fan recovery box (10) discharges the preliminarily filtered exhaust gas into the recovery box for sedimentation and filtration, and then discharges it after purification. An inspection port (2) is installed on the front surface of the machine body (1), and a front collection cover (3) is installed on the side wall of the machine body (1). The front collection cover (3) can recover the overflowed paint to ensure that the ground is clean. The inner side of the machine body (1) is connected to the front collection cover (10). A standard gate plate (4) is installed at a position corresponding to the cover (3), a gate (5) is installed on the inner side of the body (1), a transition wheel (7) is installed on the inner side of the body (1) for the steel pipe to pass smoothly, and the transition wheel (7) forms a transition zone. A wind knife (9) is installed on the inner side of the body (1) for blowing off and flattening excess paint on the surface of the steel pipe. The wind knife (9) blows excess paint on the steel pipe to the wind knife recovery zone, and the thickness of the paint film on the steel pipe can be adjusted by the wind force of the wind knife. An oil tank paint supply system (11) is installed at the bottom of the body (1) for supplying paint to the oil ring nozzle group (6) and recovering and filtering excess paint. The oil tank paint supply system (11) includes a paint box. The oil ring of the sprayer adopts a wide-angle nozzle. The wind knife recovery zone and the transition zone have recovery air ports. The spraying zone, the transition zone, and the wind knife recovery zone all have partitions and gates (5) that open in opposite directions.

2. The steel pipe spraying machine according to claim 1, characterized in that: The paint box provides sufficient paint to the oil ring nozzle assembly (6) through a diaphragm pump and automatically filters and recycles the paint.

3. The steel pipe spraying machine according to claim 1, characterized in that: The air knife (9) has a built-in cleaning function. The cleaning agent enters the air knife through a pipeline and is blown out by high-pressure air to clean the air knife.

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