Dust-free spraying room for spraying

Abstract

The utility model relates to a dust-free spraying room for spraying, which comprises a spraying room provided with a glue spraying robot, a plurality of fans are arranged at the top of the outer side of the spraying room, a first filter is arranged in the spraying room, the first filter is positioned below air outlets of the fans, and the glue spraying robot is used for spraying workpieces. And air blown out of the fan penetrates through the first filter and then is blown to the glue spraying robot and / or the workpiece, so that glue mist sprayed out of the glue spraying robot is uniformly sprayed to the workpiece through air pressure. External air enters the spraying chamber through the draught fan and the first filter, air blown out of the draught fan is evenly blown to the position below the spraying chamber through the first filter, and the first filter filters and rectifies the air blown out of the draught fan. Air blown out by the fan enters the spraying chamber in the vertically downward direction, the airflow clamp presses glue mist sprayed out by the glue spraying robot downwards, the glue mist falls on a workpiece under the air pressure, and the glue mist is effectively prevented from rebounding.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, in particular to a dust-free spray room for spraying. Background Art

[0002] Chinese patent document No. CN201603659U discloses a dust-free paint spraying room, including a spraying room, a pool and an exhaust channel. The pool is set on the floor of the spraying room, and one end of the pool is provided with an exhaust channel partially immersed in water. A dust-reducing water curtain is provided in the exhaust channel, and the water in the pool is recycled through a water circulation system. The air is discharged from the exhaust channel, and the glue mist therein is blocked and retained by the water curtain and falls into the pool. The structure of the pool takes up a large area. Therefore, further improvement is needed.

[0003] For another example, Chinese patent document No. CN208679544U discloses a multi-station integrated automated painting equipment, including a door leaf front spraying device, a door leaf side spraying device and a door leaf back spraying device; the door leaf front spraying device, the door leaf side spraying device and the door leaf back spraying device are respectively connected to each other, and a multi-station reciprocating transmission component is arranged between each other, and the door leaf bracket on the multi-station reciprocating transmission component reciprocates in the door leaf front spraying device, the door leaf side spraying device and the door leaf back spraying device, and the door leaf front spraying device, the door leaf side spraying device and the door leaf back spraying device respectively include a spraying studio, and a spraying component, a driving component, a door leaf lifting component and a supporting frame arranged in the spraying studio, wherein the top of the spraying studio is connected to an air inlet booster chamber, and one side of the spraying studio is connected to a purification and recovery component. The structure that the spraying studio is connected to a purification and recovery component on one side leads to a large occupied area. Therefore, further improvement is needed. Utility Model Content

[0004] The utility model aims to provide a dust-free spray room for spraying, which can effectively prevent the rebound of glue mist during glue spraying and make the workpiece sprayed evenly.

[0005] A dust-free spray room for spraying designed for this purpose includes a spray room equipped with a glue spraying robot, a plurality of fans are arranged on the top of the outer side of the spray room, a first filter is arranged in the spray room, and the first filter is located below the air outlets of the plurality of fans. The glue spraying robot sprays the workpiece, and the wind blown by the fan passes through the first filter and then blows toward the glue spraying robot and / or the workpiece, so that the glue mist sprayed by the glue spraying robot is evenly sprayed onto the workpiece through wind pressure.

[0006] External air enters the spraying room through the fan and the first filter. The wind blown by the fan is evenly blown to the bottom of the spraying room through the first filter. The first filter filters and rectifies the wind blown by the fan. The wind blown by the fan enters the spraying room in a vertical downward direction, and the air flow clamp presses down the glue mist sprayed by the glue spraying robot. The glue mist falls on the workpiece under the wind pressure, effectively preventing the glue mist from rebounding.

[0007] An exhaust duct is provided on the top of the outer side of the spray room, and an outlet duct connected to the exhaust duct is provided on one or both sides of the spray room. A second filter is provided on the inner part of the spray room corresponding to the outlet duct. The gas in the spray room is discharged to the outside of the spray room through the second filter, the outlet duct, and the exhaust duct in sequence. The exhaust gas generated in the spray room is discharged to the outside of the spray room through the second filter, the outlet duct, and the exhaust duct to ensure that the air in the spray room is cleaner. The exhaust duct is provided on the top of the outer side of the spray room to eliminate the purification and recovery device on one side of the traditional spray room, saving equipment placement area and effectively saving space.

[0008] The air outlet of the exhaust duct is connected to the exhaust fan through a pipeline; or, the exhaust fan is arranged in the exhaust duct.

[0009] The first filter and the second filter are respectively disassembled and assembled in the spraying room, so it is convenient to clean or replace the filters.

[0010] The first filter and the second filter are filter nets or filter cottons.

[0011] A third filter is provided between the air outlet of the exhaust duct and the exhaust fan.

[0012] A conveyor table for transporting workpieces is provided in the spraying room.

[0013] A support frame is provided on the outside of the spray chamber corresponding to the conveyor platform, and a 3D visual scanner is installed inside the support frame for scanning and identifying the shape and size of the workpiece.

[0014] The glue spraying robot includes a six-axis manipulator, one end of which is provided with a connecting support, the connecting support is provided with a swing arm, the outer side of the swing arm is provided with a rotating cylinder, the rotating cylinder is transmission-connected to the swing arm, the swing arm is rotatably arranged on the connecting support, a glue spraying gun is provided on the swing arm, and the rotating cylinder drives the glue spraying gun to rotate through the swing arm.

[0015] The six-axis manipulator is provided with a valve body connected to the glue spray gun through an oil pipe, and the six-axis manipulator is provided with a valve body connected to the rotating cylinder through an air pipe.

[0016] The beneficial effects of the utility model are as follows:

[0017] External air enters the spraying room through the fan and the first filter. The wind blown by the fan is evenly blown to the bottom of the spraying room through the first filter. The first filter filters and rectifies the wind blown by the fan. The wind blown by the fan enters the spraying room in a vertical downward direction, and the air flow clamp presses down the glue mist sprayed by the glue spraying robot. The glue mist falls on the workpiece under the wind pressure, effectively preventing the glue mist from rebounding.

[0018] The exhaust gas generated in the spraying room is discharged to the outside of the spraying room through the second filter, the air outlet duct and the exhaust duct, ensuring that the air in the spraying room is cleaner.

[0019] The first filter and the second filter are respectively disassembled and assembled in the spraying room, so it is convenient to clean or replace the filters.

[0020] The top of the spray booth must have full pressure function and be equipped with level II air inlet filtration. The air supply at the spraying position should be ≥20,000m3 / h. The air blown by the fan should evenly cover the interior space of the spray booth through the filter.

[0021] The dust-free spray room is equipped with an overspray glue mist treatment device. The exhaust volume of the overspray glue mist treatment device is ≥15000m3 / h. The particles generated by the overspray glue mist are filtered and purified, and then discharged after secondary filtration through the centralized filtration and purification system of the production workshop.

[0022] Four axial flow fans are used to supply air, and the air supply filtration on the top of the spray booth adopts a mesh frame type three-dimensional spray glue fine filtration system to ensure uniform airflow at different locations in the room.

[0023] A reasonable full-pressure wind speed is recommended to flow downward at a speed of 0.2-0.3m / s, so that the glue mist particles generated after spraying do not stay in the air, but directly enter the overspray glue mist treatment device for purification and then discharge.

[0024] The indoor air is continuously circulated and converted, which can make the indoor air cleanliness reach more than 95%. The air supplied is pressurized, which can form a constant airflow in the spraying area to remove overspray glue mist and ensure the overspray quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a three-dimensional structural diagram of a dust-free spray booth according to an embodiment of the utility model.

[0026] Figure 2 The figure is a schematic diagram of the plan structure of a dust-free spray booth according to an embodiment of the utility model.

[0027] Figure 3 This is a schematic diagram of the planar structure of a dust-free spray booth in another aspect of an embodiment of the utility model.

[0028] Figure 4 for Figure 2 Schematic diagram of the AA cross-section structure.

[0029] Figure 5 for Figure 3 Schematic diagram of the BB cross-section structure.

[0030] Figure 6 This is a structural schematic diagram of a dust-free spray room equipped with a glue spraying robot and a conveying platform in one embodiment of the utility model.

[0031] Figure 7 for Figure 6 Enlarged view of center C. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] See also Figure 1-Figure 7 A dust-free spray room for spraying includes a spray room 2 provided with a glue spraying robot 1, a plurality of fans 3 are provided on the outer top of the spray room 2, a first filter 4 is provided in the spray room 2, and the first filter 4 is located below the air outlets of the plurality of fans 3. The glue spraying robot 1 sprays the workpiece, and the wind blown by the fan 3 passes through the first filter 4 and then blows toward the glue spraying robot 1 and / or the workpiece, so that the glue mist sprayed by the glue spraying robot 1 is evenly sprayed onto the workpiece through wind pressure.

[0034] In this embodiment, the first filter 4 is located below the air outlets of several fans 3. A distance is provided between the first filter 4 and the inner top wall of the spray chamber 2 to form an air inlet duct. The wind blown out by the fan 3 enters the air inlet duct downward, and then blows from the first filter 4 to the glue spraying robot 1 and / or the workpiece.

[0035] An exhaust duct 5 is provided on the top of the outer side of the spraying room 2, and an outlet duct 6 connected to the exhaust duct 5 is provided on one side or both sides of the spraying room 2. A second filter 7 is provided on the inner part of the spraying room 2 corresponding to the outlet duct 6. The gas in the spraying room 2 is discharged to the outside of the spraying room 2 through the second filter 7, the outlet duct 6 and the exhaust duct 5 in sequence.

[0036] In this embodiment, air outlet ducts 6 connected to the exhaust duct 5 are provided on both sides of the spraying room 2 , and the wind entering the air outlet duct 6 from both sides of the spraying room 2 is gathered from the exhaust duct 5 .

[0037] The air outlet of the exhaust duct 5 is connected to the exhaust fan through a pipeline; or, the exhaust fan is arranged in the exhaust duct 5.

[0038] The first filter 4 and the second filter 7 are respectively installed and removed in the spraying room 2 .

[0039] In this embodiment, a first installation position and a second installation position for installing the first filter 4 and the second filter 7 are respectively provided in the spraying room 2, and each filter is assembled and disassembled at the installation position by means of screws, buckles or plug-ins.

[0040] The first filter 4 and the second filter 7 are filter nets or filter cottons.

[0041] A third filter is provided between the air outlet of the exhaust duct 5 and the exhaust fan.

[0042] A conveying platform 8 for conveying workpieces is provided in the spraying room 2. The conveying platform 8 can adopt conveying structures such as chains, sprockets or synchronous wheels, conveyor belts, etc.

[0043] A support frame 9 is provided outside the spray chamber 2 corresponding to the conveying platform 8, and a 3D visual scanner for scanning and identifying the shape and size of the workpiece is provided inside the support frame 9.

[0044] This structure is mainly used in the furniture industry, and is mainly suitable for online glue spraying operations such as solid wood, medium-density fiberboard, and plastic boards.

[0045] Through the 3D visual recognition system (3D visual scanner), the glue spraying robot 1 is controlled to perform automatic spraying, which is suitable for coating operations such as the upper surface, inner and outer edges, surface grooves, and bosses of panel furniture.

[0046] The process flow of glue spraying operation is as follows: 3D visual positioning recognition → automatic optimization of control program → automatic transmission → automatic spraying operation.

[0047] The loading scanning area is connected to the upstream transmission machinery to realize automatic loading.

[0048] The 3D camera simultaneously performs laser line scanning on the workpiece, and the 3D visual recognition system automatically generates the spraying trajectory through manually preset parameters.

[0049] The workpiece is transported to the spraying area, and the glue spraying robot 1 automatically sprays the surface of the workpiece, and can select fixed-point spraying or tracking spraying.

[0050] After spraying is completed, the workpiece is transferred to the unloading area and connected to the downstream transmission machinery to realize automatic unloading.

[0051] The spraying and conveying actions are operated in a reciprocating cycle in sequence, so that the glue spraying robot 1 is linked with other execution functions.

[0052] The glue spraying robot 1 includes a six-axis manipulator, one end of which is provided with a connecting support 10, a swing arm 11 is provided on the connecting support 10, a rotating cylinder 12 is provided on the outer side of the swing arm 11, the rotating cylinder 12 is transmission-connected to the swing arm 11, the swing arm 11 is rotatably arranged on the connecting support 10, a glue spraying gun 13 is provided on the swing arm 11, and the rotating cylinder 12 drives the glue spraying gun 13 to rotate through the swing arm 11.

[0053] The six-axis manipulator is provided with a valve body connected to the glue spray gun 13 through an oil pipe, and the six-axis manipulator is provided with a valve body connected to the rotating cylinder 12 through an air pipe.

[0054] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dust-free spray booth for spraying, comprising a spray booth (2) provided with a glue spraying robot (1), characterized in that: A plurality of fans (3) are arranged on the top of the outer side of the spraying room (2), a first filter (4) is arranged in the spraying room (2), and the first filter (4) is located below the air outlets of the plurality of fans (3). The glue spraying robot (1) performs a spraying operation on the workpiece, and the wind blown by the fan (3) passes through the first filter (4) and then blows toward the glue spraying robot (1) and / or the workpiece, so that the glue mist sprayed by the glue spraying robot (1) is evenly sprayed onto the workpiece by wind pressure.

2. The dust-free spray booth for spraying according to claim 1, characterized in that: An exhaust duct (5) is provided at the top of the outer side of the spraying room (2); an outlet duct (6) connected to the exhaust duct (5) is provided on one side or both sides of the spraying room (2); a second filter (7) is provided at the inner side of the spraying room (2) corresponding to the outlet duct (6); gas in the spraying room (2) is discharged to the outside of the spraying room (2) through the second filter (7), the outlet duct (6), and the exhaust duct (5) in sequence.

3. The dust-free spray booth for spraying according to claim 2, characterized in that: The air outlet of the exhaust air duct (5) is connected to the exhaust fan via a pipeline; or, the exhaust fan is arranged in the exhaust air duct (5).

4. The dust-free spray booth for spraying according to claim 2, characterized in that: The first filter (4) and the second filter (7) are respectively installed and disassembled in the spraying room (2).

5. The dust-free spray booth for spraying according to claim 2, characterized in that: The first filter (4) and the second filter (7) are filter nets or filter cotton.

6. The dust-free spray booth for spraying according to claim 3, characterized in that: A third filter is provided between the air outlet of the exhaust air duct (5) and the exhaust fan.

7. The dust-free spray booth for spraying according to claim 1, characterized in that: A conveying platform (8) for conveying workpieces is provided in the spraying room (2).

8. The dust-free spray booth for spraying according to claim 7, characterized in that: A support frame (9) is provided outside the spray chamber (2) corresponding to the conveying platform (8), and a 3D visual scanner for scanning and identifying the shape and size of the workpiece is provided inside the support frame (9).

9. The dust-free spray booth for spraying according to claim 1, characterized in that: The glue spraying robot (1) comprises a six-axis manipulator, a connecting support (10) is provided at one end of the six-axis manipulator, a swing arm (11) is provided on the connecting support (10), a rotating cylinder (12) is provided on the outer side of the swing arm (11), the rotating cylinder (12) is transmission-connected to the swing arm (11), the swing arm (11) is rotatably arranged on the connecting support (10), a glue spraying gun (13) is provided on the swing arm (11), and the rotating cylinder (12) drives the glue spraying gun (13) to rotate through the swing arm (11).

10. The dust-free spray booth for spraying according to claim 9, characterized in that: The six-axis manipulator is provided with a valve body connected to the glue spray gun (13) through an oil pipe, and the six-axis manipulator is provided with a valve body connected to the rotary cylinder (12) through an air pipe.

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