Large cyclone rapid color changing plastic spraying coating production line

Abstract

The utility model relates to a large whirlwind quick color changing plastic spraying coating production line, which comprises a spraying chamber, a conveyor belt, a powder supply chamber, a drying chamber, an exhaust fan and a separator, the periphery of the spraying chamber is respectively connected with the powder supply chamber, the conveyor belt and the separator, one end of the conveyor belt is provided with the drying chamber, the exhaust fan is connected with the spraying chamber through the separator, and the separator is connected with the powder supply chamber. A spraying mechanical arm and a telescopic spraying workpiece which are connected with the powder supply chamber and a conversion mechanical arm used for conveying the workpiece are arranged in the spraying chamber. The utility model mainly aims to meet the requirements of comprehensive plastic spraying of rotary bodies such as a drying cylinder and the like in a manner of simultaneously spraying inside and outside through the spraying mechanical arm and the telescopic spraying workpiece, and replace the traditional manual plastic spraying manner with an automatic plastic spraying manner, so that the plastic spraying quality of the workpiece is high, and the surface treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spraying, in particular to a large cyclone rapid color-changing spraying coating production line. Background Art

[0002] Powder coating is a common surface treatment process. Powder coating is sprayed onto the surface of the workpiece using electrostatic powder spraying equipment. Under the action of static electricity, the powder will be evenly adsorbed on the surface of the workpiece to form a powdery coating. The powdery coating is baked at high temperature to level and solidify, becoming the final coating with different effects.

[0003] Traditional plastic spraying devices usually place the spray gun on both sides of the workpiece. This spray gun structure is suitable for sheet metal workpieces. However, for rotating workpieces such as drying cylinders, it is difficult for the coating to evenly cover the inner wall during the spraying process, resulting in poor rust prevention effect inside the drying cylinder and affecting the size and strength of the drying cylinder. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a large cyclone fast color change spray coating production line, including a spray chamber, a conveyor belt, a powder supply chamber, a drying chamber, an exhaust fan and a separator. The four sides of the spray chamber are respectively connected to the powder supply chamber, the conveyor belt and the separator. A drying chamber is provided at one end of the conveyor belt. The exhaust fan is connected to the spray chamber through a separator. The spray chamber is provided with a spray robot arm connected to the powder supply chamber and a telescopic spray workpiece, as well as a conversion robot for conveying the workpiece.

[0005] By adopting the above technical scheme, the utility model is mainly used for spraying plastic on a rotating body. The workpiece to be processed is placed in the spraying room. The spraying robot arm and the telescopic spraying workpiece spray the paint in the powder supply chamber and adsorb it on the outer surface and inner surface of the workpiece respectively. The sprayed workpiece is transferred to the conveyor belt by the conversion robot. The paint on the surface of the workpiece is melted at high temperature in the drying room and then cooled to form. The spraying robot arm and the telescopic spraying workpiece are sprayed inside and outside at the same time to meet the needs of comprehensive spraying of rotating bodies such as drying cylinders. The traditional manual spraying is replaced by automated spraying, so that the spraying quality of the workpiece is high and the efficiency of surface treatment is improved. The excess paint in the spraying room is adsorbed into the separator by the exhaust fan, and the powder is recovered by the separator, thereby recycling it and reducing the waste of raw materials.

[0006] The utility model is further configured that the spray chamber is provided with an X-axis module, an X-axis servo motor, a Z-axis module and a Z-axis servo motor, the X-axis servo motor is connected to and drives the spray robot arm through the X-axis module, and the Z-axis servo motor is connected to and drives the telescopic spray workpiece through the Z-axis module.

[0007] By adopting the above technical scheme, the X-axis module is a sliding module composed of a self-lubricating slider and a guide rail, the Z-axis module is a module composed of a closed guide rail and a screw rod, the spray robot arm moves laterally in the spraying room through the X-axis module, and cooperates with the X-axis module to spray the outer surface of the workpiece, the telescopic spray workpiece moves longitudinally in the spraying room through the Z-axis module, the nozzle of the telescopic spray workpiece extends from bottom to top to the inside of the workpiece and sprays the inner wall of the workpiece, and the distance between the nozzle and the workpiece surface is controlled by the X-axis module and the Z-axis module to improve the plastic spraying effect.

[0008] The utility model is further configured that the powder supply chamber is provided with a material storage area and a material supply pipe connected to a spraying mechanical arm and a telescopic spraying workpiece.

[0009] Furthermore, two ends of the separator are respectively provided with a pipeline a for connecting to the spraying room, and a pipeline b for connecting to the exhaust fan.

[0010] Furthermore, a return pipe connected to the powder supply chamber is provided at the bottom of the separator, and one end of the return pipe extends to the material storage area.

[0011] By adopting the above technical scheme, when the spray robot arm and the telescopic spray workpiece are spraying, the plastic powder not attached to the workpiece is settled to the bottom of the spray chamber, and the exhaust fan generates negative pressure inside the separator through the pipe b, so that the plastic powder is adsorbed from the pipe a to the separator, and the separated plastic powder is sent back to the powder supply chamber through the return pipe through the pneumatic butterfly valve. The single separation rate of the separator is as high as 97%, and the comprehensive utilization rate is more than 95%. When the color needs to be changed, the powder box in the storage area is replaced, and the powder suction pipe, powder pump, powder supply pipe and the inner wall of the spray gun are cleaned through the air valve in the powder supply chamber, and then another powder box is replaced to complete the color change.

[0012] The utility model is further configured that a filter is provided inside the exhaust fan, and a powder collecting bucket is provided at the bottom of the filter.

[0013] With the above technical solution, the filter is a rotary wing filter, which is used to filter a small amount of dust brought by the exhaust fan to avoid clogging. The filtered dust is collected by a powder collecting bucket for easy recycling.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is mainly used for spraying plastic on rotating bodies. Through the spraying mechanical arm and the telescopic spraying workpiece, the internal and external spraying is carried out simultaneously to meet the demand for comprehensive spraying of rotating bodies such as drying cylinders. The automatic spraying method replaces the traditional manual spraying method, so that the spraying quality of the workpiece is high and the efficiency of surface treatment is improved;

[0016] 2. The excess paint in the spray room is adsorbed into the separator by the exhaust fan, and the powder is recovered by the separator for recycling, thus reducing the waste of raw materials.

[0017] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the plane distribution diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the powder supply chamber of the utility model connected with the exhaust fan and the separator;

[0020] Figure 3 For the utility model Figure 2 A partial enlarged view of the A-direction view;

[0021] Figure 4 It is a cross-sectional view of the powder supply chamber of the utility model;

[0022] Figure 5 It is a cross-sectional view of the exhaust fan of the utility model;

[0023] Among them: 1- spraying room, 2- conveyor belt, 3- powder supply room, 4- drying room, 5- exhaust fan, 6- separator, 7- spraying robot arm, 8- telescopic spraying workpiece, 9- conversion robot, 11- X-axis module, 12- X-axis servo motor, 13- Z-axis module, 14- Z-axis servo motor, 15- material storage area, 16- feed pipe, 17- return pipe, 18- pipe a, 19- pipe b, 21- filter, 22- powder collecting barrel; DETAILED DESCRIPTION

[0024] like Figure 1 , 2 As shown, the present embodiment provides a large cyclone fast color-changing spray coating production line, comprising a spray chamber 1, a conveyor belt 2, a powder supply chamber 3, a drying chamber 4, an exhaust fan 5 and a separator 6. The spray chamber 1 is connected to the powder supply chamber 3, the conveyor belt 2 and the separator 6 on all four sides, a drying chamber 4 is provided at one end of the conveyor belt 2, the exhaust fan 5 is connected to the spray chamber 1 through the separator 6, and a spray robot arm 7 connected to the powder supply chamber 3 and a telescopic spray workpiece 8, as well as a conversion robot arm 9 for conveying the workpiece are provided in the spray chamber 1.

[0025] The utility model is mainly used for spraying plastic on a rotating body. A workpiece to be processed is placed in a spraying room 1. A spraying robot arm 7 and a telescopic spraying workpiece 8 spray the paint in a powder supply room 3 and adsorb it on the outer surface and inner surface of the workpiece respectively. A conversion robot arm 9 transfers the sprayed workpiece to a conveyor belt 2. The paint on the surface of the workpiece is melted at high temperature in a drying room 4 and then cooled and formed. By replacing traditional manual spraying with automated spraying, the spraying quality of the workpiece is high and the efficiency of surface treatment is improved. The excess paint in the spraying room 1 is adsorbed into a separator 6 under the action of an exhaust fan 5, and the powder is recovered by the separator 6, thereby recycling it and reducing the waste of raw materials.

[0026] Combination Figure 3 As shown, in this embodiment, the spray chamber 1 is provided with an X-axis module 11, an X-axis servo motor 12, a Z-axis module 13 and a Z-axis servo motor 14. The X-axis servo motor 12 is connected to and drives the spray robot 7 through the X-axis module 11, and the Z-axis servo motor 14 is connected to and drives the telescopic spray workpiece 8 through the Z-axis module 13. The X-axis module 11 is a sliding module composed of a self-lubricating slider and a guide rail, and the Z-axis module 13 is a module composed of a closed guide rail and a screw rod. The spray robot 7 moves laterally in the spray chamber 1 through the X-axis module 11, and cooperates with the X-axis module 11 to spray the outer surface of the workpiece. The telescopic spray workpiece 8 moves longitudinally in the spray chamber 1 through the Z-axis module 13. The nozzle of the telescopic spray workpiece 8 extends from bottom to top to the inside of the workpiece and sprays the inner wall of the workpiece. The distance between the nozzle and the surface of the workpiece is controlled by the X-axis module 11 and the Z-axis module 13 to improve the spray adsorption effect.

[0027] Combination Figure 4 As shown, in this embodiment, the powder supply chamber 3 is provided with a storage area 15, and a supply pipe 16 connected to the spraying robot arm 7 and the telescopic spraying workpiece 8. The two ends of the separator 6 are respectively provided with a pipe a18 for connecting to the spraying chamber 1, and a pipe b19 for connecting to the exhaust fan 5. The bottom of the separator 6 is provided with a return pipe 17 connected to the powder supply chamber 3, and one end of the return pipe 17 extends to the storage area 15. When the spraying robot arm 7 and the telescopic spraying workpiece 8 are sprayed, the plastic powder not attached to the workpiece is precipitated to the bottom of the spraying chamber 1, and the exhaust fan 5 generates a negative pressure inside the separator 6 through the pipe b19, so that the plastic powder is adsorbed from the pipe a18 into the separator 6. The separator 6 is a large cyclone separator with a single separation rate of up to 97% and a comprehensive utilization rate of more than 95%.

[0028] Combination Figure 5 As shown, in this embodiment, the exhaust fan 5 is provided with a filter 21 and a powder collecting bucket 22 arranged at the bottom of the filter 21. The filter 21 is a rotary wing filter, which is used to filter a small amount of dust brought by the exhaust fan 5 to avoid blockage. The filtered dust is collected by the powder collecting bucket 22 for easy recycling.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large cyclone rapid color change spray coating production line, characterized in that: The invention comprises a spraying chamber (1), a conveyor belt (2), a powder supply chamber (3), a drying chamber (4), an exhaust fan (5) and a separator (6). The spraying chamber (1) is connected to the powder supply chamber (3), the conveyor belt (2) and the separator (6) on all sides thereof. A drying chamber (4) is arranged at one end of the conveyor belt (2). The exhaust fan (5) is connected to the spraying chamber (1) via the separator (6). A spraying mechanical arm (7) connected to the powder supply chamber (3) and a telescopic spraying workpiece (8) are arranged in the spraying chamber (1), as well as a conversion mechanical arm (9) for conveying the workpiece.

2. According to claim 1, a large cyclone rapid color change spray coating production line is characterized by: The spraying chamber (1) is provided with an X-axis module (11), an X-axis servo motor (12), a Z-axis module (13) and a Z-axis servo motor (14); the X-axis servo motor (12) is connected to and drives the spraying robot arm (7) via the X-axis module (11); and the Z-axis servo motor (14) is connected to and drives the telescopic spraying workpiece (8) via the Z-axis module (13).

3. The large cyclone rapid color change spray coating production line according to claim 2 is characterized by: The powder supply chamber (3) is provided with a material storage area (15) and a material supply pipe (16) connected to a spraying mechanical arm (7) and a telescopic spraying workpiece (8).

4. The large cyclone rapid color-changing plastic spray coating production line according to claim 3 is characterized by: The two ends of the separator (6) are respectively provided with a pipeline a (18) for connecting to the spray chamber (1), and a pipeline b (19) for connecting to the exhaust fan (5).

5. The large cyclone rapid color-changing plastic spray coating production line according to claim 4 is characterized by: A return pipe (17) connected to the powder supply chamber (3) is provided at the bottom of the separator (6), and one end of the return pipe (17) extends to the material storage area (15).

6. The large cyclone rapid color change spray coating production line according to claim 1 is characterized by: The exhaust fan (5) is provided with a filter (21) and a powder collecting bucket (22) arranged at the bottom of the filter (21).

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