An automatic cleaning circular powder spraying booth

Abstract

The present invention discloses an automatic cleaning circular powder spraying booth, which includes a base. An outer shell is provided on the base. Doors are respectively provided on the front and rear sides of the outer shell. A cavity for powder collection is provided inside the outer shell. An air extraction structure for extracting powder is provided in the cavity. A cleaning device for cleaning the internal powder is provided in the cavity. A convex plate is provided on the outer shell. A spray gun groove is provided on the convex plate. A closing structure for closing the spray gun groove is provided on one side of the convex plate. In the present invention, an arc-shaped structure is adopted. The design of the arc-shaped powder spraying booth can guide strong air flow during cleaning. Combined with the unique air extraction port at the bottom of the powder spraying booth, a vortex can be formed in the powder spraying booth, and the powder is extracted from the air extraction port under the action of the vortex, avoiding powder overflowing into the factory workshop when cleaning the powder spraying booth and avoiding manual entry into the powder spraying booth for manual cleaning. The entire cleaning process will be automatically controlled by a programmable controller.

Description

Technical Field

[0001] The present invention relates to the field of industrial painting equipment, and particularly relates to an automatic cleaning circular powder spraying booth. Background Art

[0002] The powder spraying booth is a device for spraying workpieces such as sheet metal parts. In the spraying industry, powder is extremely harmful to the human body, and the automatic color-changing spraying booth plays an important role. Even so, when the quick color-changing spraying booth needs to change colors, it still requires manual entry into the booth to manually clean the powder electrostatically adsorbed on the surface of the booth. This leads to a large area of contact between the spraying personnel and the powder, and it is inevitable that the powder enters the respiratory system of the human body, which greatly damages the physical health of the spraying personnel. Most of the existing powder spraying booths are square in design, and manual cleaning is required during powder recovery, with a very slow cleaning speed. Moreover, the cleaning of the four corners of the square is often not in place, affecting powder color change. The traditional powder spraying booth has slow powder cleaning, slow recovery, insufficient recovery, and consumes manpower, increasing labor costs.

[0003] Therefore, the existing powder spraying booth needs to be further improved. Summary of the Invention

[0004] In view of the above-mentioned prior art, the technology to be achieved by the present invention is that the spraying booth has a self-cleaning function, which can not only reduce the harm of powder to the human body during spraying operations, but also quickly clean the powder to facilitate quick color-changing powder spraying.

[0005] To achieve the above object, the present invention adopts the following solutions:

[0006] An automatic cleaning circular powder spraying booth, comprising a base, on which an outer shell is provided. Doors are respectively provided on the front and rear sides of the outer shell. A cavity for powder to gather is provided inside the outer shell. An air extraction structure for extracting powder is provided in the cavity. A cleaning device for cleaning the internal powder is provided in the cavity. A convex plate is provided on the outer shell, and a spray gun groove is provided on the convex plate. A closing structure for closing the spray gun groove is provided on one side of the convex plate.

[0007] Further, the cavity in the present invention includes a cylindrical cavity provided inside the outer shell, and a circular concave cavity is provided on the base and inside the cylindrical cavity.

[0008] Further, the air extraction structure in the present invention includes an air extraction port provided at the center of the circular concave cavity. A storage cavity is communicated and provided below the air extraction port and inside the base. The storage cavity communicates to one side wall surface outside the base. A cover is provided on the upper side of the storage cavity, and a gap is left between the cover and the air extraction port.

[0009] Furthermore, the cleaning device in the present invention includes a seat plate fixed at the air extraction port. A connecting seat is provided on the seat plate. A fixed pipe is communicatively provided above the connecting seat. A bottom tee is movably provided above the fixed pipe. Cleaning pipes are communicatively and symmetrically provided on the left and right sides of the bottom tee. A top tee is connected between the tops of the cleaning pipes on both sides. The top of the top tee penetrates through the top of the housing. A jack for installing a blowing pipe is provided at the bottom of the connecting seat. The jack communicates with the inside of the fixed pipe. Blowing holes are communicatively provided on the cleaning pipes.

[0010] Furthermore, the blowing holes on the cleaning pipes in the present invention are arranged on opposite sides.

[0011] Furthermore, the closing structure in the present invention includes slide rails symmetrically provided on the upper and lower sides of the convex plate. A closing plate is provided on one side of the convex plate. Sliders are symmetrically provided on the upper and lower sides of the closing plate. The sliders are arranged in the slide rails so that the closing plate can slide horizontally. An inner through groove is provided on the closing plate. A pressing plate is movably provided in the inner through groove. A plug plate for closing the spray gun groove is fixed on one wall of the pressing plate. A plurality of limit pins are provided on the top of the pressing plate. A plurality of limit grooves corresponding to the limit pins are provided on the top of the closing plate. The limit pins are axially limited and movable in the limit grooves.

[0012] Furthermore, the plug plate in the present invention is inserted into the spray gun groove so that the inner wall surface of the cylindrical cavity is a complete circle.

[0013] Furthermore, a step is provided on one side of the base in the present invention.

[0014] Furthermore, a control console is provided on the step in the present invention.

[0015] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0016] The structure of the present invention is simple and convenient to use. In the past, the shape of traditional spray booths was mainly square. In the present invention, an arc-shaped structure is adopted. The design of the arc-shaped spray booth can guide strong airflows during cleaning. Combined with the unique air extraction port at the bottom of the spray booth, a vortex can be formed in the spray booth. Under the action of the vortex, the powder is extracted from the air extraction port, facilitating further entry into the filter system. The present invention avoids powder spilling out into the factory workshop during spray booth cleaning, polluting the environmental hygiene. The annular cleaning device in the spray booth is connected to the air source, avoiding manual entry into the spray booth for manual cleaning. The entire cleaning process will be automatically controlled by a programmable controller without manual operation. Moreover, as the speed of cleaning the powder increases, color change is also faster, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 Schematic diagram of the three-dimensional decomposition of the present invention.

[0019] Figure 3 One of the schematic diagrams of the three-dimensional dissection of the present invention.

[0020] Figure 4 Another schematic diagram of the three-dimensional dissection of the present invention.

[0021] Figure 5 Schematic three-dimensional diagram of the cleaning device of the present invention.

[0022] Figure 6 Partial plan schematic diagram of the cleaning device of the present invention.

[0023] Figure 7 Schematic three-dimensional diagram of the closed structure of the present invention.

[0024] Figure 8 Schematic three-dimensional diagram of the connecting seat of the present invention. Detailed implementation manners

[0025] The present invention will be further described below in conjunction with the accompanying drawings and detailed implementation manners:

[0026] As Figures 1 to 8 shown, an automatic cleaning circular powder spraying booth includes a base 1, on which an outer shell 11 is provided. Doors 12 are respectively provided on the front and rear sides of the outer shell 11. A cavity 2 for powder collection is provided inside the outer shell 11. An air extraction structure 3 for extracting powder is provided in the cavity 2. A cleaning device 4 for cleaning the internal powder is provided in the cavity 2. A convex plate 5 is provided on the outer shell 11. A spray gun groove 51 is provided on the convex plate 5. A closed structure 6 for closing the spray gun groove 51 is provided on one side of the convex plate 5. During operation, the inside of the outer shell can form a production line for spraying workpieces by opening the two side doors, or the workpiece can be sprayed individually. The spray gun groove is the activity area of the spray gun. When the whole needs to be cleaned or the powder needs to be changed, the doors are closed, and the spray gun groove on the convex plate is closed by the closed structure to prevent powder leakage. At this time, the cleaning device is controlled to clean the inside of the cavity. The powder will form a vortex and converge quickly in combination with the shape of the cavity and the air extraction structure. The converged powder can be reused in the production line or enter the filter system to achieve the effect of rapid recovery.

[0027] In the present invention, the cavity 2 includes a cylindrical cavity 21 provided inside the outer shell 11. A circular concave cavity 22 is provided on the base 1 and inside the cylindrical cavity 21. The cylindrical cavity enables the cleaning device to clean without dead corners. Compared with the traditional square cavity, it avoids the drawback that powder cannot be cleaned when hidden in the four corners. The circular concave cavity will enable the powder to slide naturally and is convenient for the air flow of the cleaning device to drive the formation of a vortex and converge towards the center of the circular concave cavity.

[0028] In the present invention, the exhaust structure 3 includes an exhaust port 31 disposed at the center of the circular cavity 22. A storage cavity 32 is communicated and arranged inside the base 1 below the exhaust port 31. The storage cavity 32 is communicated to a side wall surface outside the base 1. A cover 33 is arranged above the storage cavity 32. A gap 34 is left between the cover 33 and the exhaust port 31. During operation, the converged powder concentrates towards the exhaust port, and falls into the storage cavity through the gap. The storage cavity is connected to the wall surface outside the base, and can be connected to a production line for further recovery and filtration of the powder.

[0029] In the present invention, the cleaning device 4 includes a seat plate 41 fixed at the exhaust port 31. A connecting seat 42 is arranged on the seat plate 41. A fixed pipe 43 is communicated and arranged above the connecting seat 42. A bottom three-way head 44 is movably arranged above the fixed pipe 43. Cleaning pipes 45 are symmetrically communicated and arranged on the left and right sides of the bottom three-way head 44. A top three-way head 46 is connected between the tops of the two cleaning pipes 45. The top of the top three-way head 46 penetrates through the top of the outer shell 11. An insertion hole 47 for installing a blowing pipe is arranged at the bottom of the connecting seat 42. The insertion hole 47 is communicated with the inside of the fixed pipe 43. A blowing hole 48 is communicated and arranged on the cleaning pipe 45. During operation, since the insertion hole at the bottom of the connecting seat is connected to the blowing pipe, when the blowing pipe discharges air, the air flow enters the fixed pipe, and then is split by the bottom three-way head and enters the two cleaning pipes on both sides, and the gas is blown out through the blowing holes to clean the inner wall of the cylindrical cavity. At the same time, since the tops of the two cleaning pipes are connected by the top three-way head, and the top of the top three-way head is inserted into the inner top wall of the outer shell, at this time, the top three-way head and the bottom three-way head are on the same axis, which will enable the top three-way head and the bottom three-way head to rotate. Therefore, when the cleaning pipe blows out gas, the cleaning pipe can be driven to move by the stress of the gas ejected.

[0030] In the present invention, the blowing holes 48 on the two cleaning pipes 45 are arranged on opposite sides. The blowing holes are arranged on the sides of the two cleaning pipes and the two groups of blowing holes are arranged in opposite corresponding directions. When the cleaning pipe ejects gas, the gas is obliquely ejected through the blowing holes on both sides to generate a thrust force to rotate the top three-way head and the bottom three-way head, and the cleaning pipe rotates around the center of the cylindrical cavity, and performs rotary jet cleaning on the inner circumference of the cylindrical cavity.

[0031] In the present invention, the closed structure 6 includes slide rails 61 symmetrically arranged on the upper and lower sides of the convex plate 5. A closing plate 62 is arranged on one side of the convex plate 5. Sliders 63 are symmetrically arranged on the upper and lower sides of the closing plate 62. The sliders 63 are arranged in the slide rails 61 so that the closing plate 62 can slide horizontally. An inner through groove 64 is arranged on the closing plate 62. A pressing plate 65 is movably arranged in the inner through groove 64. A plug plate 66 capable of closing the spray gun groove 51 is fixed on one wall of the pressing plate 65. A plurality of limit pins 67 are arranged on the top of the pressing plate 65. A plurality of limit grooves 68 corresponding to the limit pins 67 are arranged on the top of the closing plate 62. The limit pins 67 are axially limited and movable in the limit grooves 68. When spraying and dyeing, the convex plate is exposed, and the spray gun extends into the interior of the housing from the spray gun groove for spraying and dyeing. When cleaning, the closing plate is pulled towards the convex plate until they coincide. At this time, the slider will also reach the limit of the slide rail. At this time, since the spray gun groove is still empty, powder will accumulate in the spray gun groove. To prevent this problem, the pressing plate is pressed inward so that the plug plate is inserted into the spray gun groove until the spray gun groove is completely filled. The protruding end of the plug plate is set to be arc-shaped to fit the inner cavity of the cylinder. When the plug plate is completely inserted into the spray gun groove, the inner cavity of the cylinder is in a complete circular shape. The cooperation of the limit pin and the limit groove enables the pressing plate to move axially to one side.

[0032] In the present invention, the plug plate 66 is inserted into the spray gun groove 51 to make the inner wall surface of the cylindrical cavity 21 a complete circle. After the plug plate is inserted into the spray gun groove, the empty position of the spray gun groove is filled, and the end face of the plug plate is set to be arc-shaped to fit the cylindrical cavity. The complete circular inner part makes the cleaning more thorough without dead corners.

[0033] In the present invention, a step 7 is arranged on one side of the base 1, which is convenient for people to enter the working area.

[0034] In the present invention, a control console 71 is arranged on the step 7. The spraying and dyeing of the spray gun or the movement coordination of the production line are controlled through the control console. The control console can control the external cylinder to control the opening and closing of the air blowing of the air blowing pipe, so as to control the opening and closing of the cleaning device.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning circular powder spraying booth, comprising a base (1), an outer shell (11) is provided on the base (1), and doors (12) are respectively provided on the front and rear sides of the outer shell (11), and it is characterized in that: Inside the housing (11), there is a cavity (2) for powder collection. Inside the cavity (2), there is an air extraction structure (3) for extracting powder. Inside the cavity (2), there is a cleaning device (4) for cleaning the internal powder. On the housing (11), there is a convex plate (5). On the convex plate (5), there is a spray gun slot (51). On one side of the convex plate (5), there is a closing structure (6) for closing the spray gun slot (51). The cavity (2) includes a cylindrical cavity (21) arranged inside the housing (11). On the base (1) and inside the cylindrical cavity (21), there is a circular concave cavity (22). The closing structure (6) includes slide rails (61) symmetrically arranged on the upper and lower sides of the convex plate (5). On one side of the convex plate (5), there is a closing plate (62). On the upper and lower sides of the closing plate (62), there are symmetrically arranged sliders (63). The sliders (63) are arranged in the slide rails (61) so that the closing plate (62) can slide horizontally. On the closing plate (62), there is an inner through slot (64). Inside the inner through slot (64), there is a pressing plate (65) arranged movably. On one wall of the pressing plate (65), there is a plug plate (66) for closing the spray gun slot (51). On the top of the pressing plate (65), there are multiple limit pins (67). On the top of the closing plate (62), there are multiple limit slots (68) corresponding to the limit pins (67). The limit pins (67) are axially limited and movable in the limit slots (68). The plug plate (66) is inserted into the spray gun slot (51) to make the inner wall surface of the cylindrical cavity (21) a complete circle. On one side of the base (1), there is a step (7).

2. The automatic cleaning circular powder spraying booth according to claim 1, characterized in that The air extraction structure (3) includes an air extraction port (31) arranged at the center of the circular concave cavity (22). Below the air extraction port (31) and inside the base (1), there is a storage cavity (32) connected in communication. The storage cavity (32) communicates with the outer side wall surface of the base (1). On the upper side of the storage cavity (32), there is a cover (33). There is a gap (34) left between the cover (33) and the air extraction port (31).

3. The automatic cleaning circular powder spraying booth according to claim 2, characterized in that The cleaning device (4) includes a seat plate (41) fixed at the air extraction port (31). On the seat plate (41), there is a connecting seat (42). On the upper side of the connecting seat (42), there is a fixed pipe (43) connected in communication. On the upper side of the fixed pipe (43), there is a bottom three-way head (44) arranged movably. On the left and right sides of the bottom three-way head (44), there are symmetrically arranged cleaning pipes (45) connected in communication. Between the tops of the two cleaning pipes (45), there is a top three-way head (46) connected. The top of the top three-way head (46) penetrates through the top of the housing (11). At the bottom of the connecting seat (42), there is a jack (47) for installing a blowing pipe. The jack (47) communicates with the inside of the fixed pipe (43). On the cleaning pipe (45), there is a blowing hole (48) connected in communication.

4. The automatic cleaning circular powder spraying booth according to claim 3, characterized in that The blowing holes (48) on the two cleaning pipes (45) are arranged on the opposite sides.

5. The automatic cleaning circular powder spraying booth according to claim 1, characterized in that On the step (7), there is a control console (71).

Images