Annular distribution external mixing spray coating device

Abstract

The utility model provides a kind of annular distribution outer mixed spray coating device, comprising: suspension bracket, installation box, first spraying mechanism, second spraying mechanism, first blow-drying mechanism, second blow-drying mechanism, liquid supply main pipeline and gas supply main pipeline, suspension bracket suspends installation box, installation box is provided with installation cavity, one vertical surface of installation box is first spraying station surface, another vertical surface of installation box is second spraying station surface, first spraying station surface and second spraying station surface are mutually parallel, first spraying station surface is opposite to the workpiece to be sprayed, and second spraying station surface is opposite to another workpiece to be sprayed.The annular distribution outer mixed spray coating device can uniformly and comprehensively spray the workpiece, ensure the uniformity of workpiece surface coating, and improve the spraying quality.

Description

Technical Field

[0001] This utility model relates to a spraying device, specifically to a ring-shaped external mixing spraying device. Background Technology

[0002] Traditional spraying operations suffer from several drawbacks. Firstly, the single-station spraying method results in low production efficiency, making it difficult to meet the demands of large-scale production. Secondly, separating the spraying and drying processes not only increases the equipment's footprint but also extends the production cycle. Furthermore, the paint supply system is typically complex, prone to uneven paint distribution, which affects coating quality. Utility Model Content

[0003] This invention provides a ring-shaped external mixing spraying device to solve the problem in the prior art that the spraying and drying processes cannot be carried out simultaneously, which affects the coating quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a ring-shaped external mixing spraying device, comprising: a suspension frame, a mounting box, a first spraying mechanism, a second spraying mechanism, a first drying mechanism, a second drying mechanism, a liquid supply main pipeline, and a gas supply main pipeline. The suspension bracket suspends the mounting box, which has a mounting cavity. One vertical surface of the mounting box is the first spraying station surface, and the other vertical surface is the second spraying station surface. The first and second spraying station surfaces are parallel to each other. The first spraying station surface is directly opposite the workpiece to be sprayed, and the second spraying station surface is directly opposite another workpiece to be sprayed. The main liquid supply line passes through the side of the mounting box into the mounting cavity. The main liquid supply line is connected to the input end of the first spraying mechanism and the input end of the second spraying mechanism. The output end of the first spraying mechanism emerges from the first spraying station surface, and the output end of the second spraying mechanism emerges from the second spraying station surface. The main gas supply line passes through the side of the mounting box into the mounting cavity. The main gas supply line is connected to the input end of the first drying mechanism and the input end of the second drying mechanism. The output end of the first drying mechanism emerges from the first spraying station surface, and the output end of the second drying mechanism emerges from the second spraying station surface.

[0005] Preferably, both the first spraying mechanism and the second spraying mechanism include: at least two rings of spray pipes, each ring of spray pipes is arranged on a circular ring, the center of the circular ring containing all the spray pipes is at a single point, each spray pipe passes through the wall of the mounting cavity, and the input end of each spray pipe is used to connect to the liquid supply main pipeline.

[0006] Preferably, both the first and second drying mechanisms include: a vent pipe, a vent seat, and a blower pipe. The vent seat is installed on the wall of the mounting box and has a ventilation cavity. The ventilation cavity is connected to the main air supply line through the vent pipe. At least three blower pipes are installed on the vent seat. The input end of each blower pipe is connected to the ventilation cavity. The second ring of nozzles from the outside in is the second outer ring nozzle. The output ends of all blower pipes are located between the outermost ring nozzle and the second outer ring nozzle.

[0007] Preferably, the ventilation seat includes: a first seat body, a second seat body, and a third seat body. The first seat body, the second seat body, and the third seat body are all strip-shaped structures. The first seat body, the second seat body, and the third seat body form a U-shaped structure. One end of the first seat body is in close contact with one end of the second seat body, and the other end of the first seat body is in close contact with one end of the third seat body. The inner cavities of the first seat body, the second seat body, and the third seat body are connected to form a ventilation cavity. The first seat body is connected to a ventilator.

[0008] Preferably, the blower pipe includes a connecting section and a jet section. The first end of the connecting section is installed on the first, second, or third base body. The connecting section is connected to the ventilation cavity. The second end of the connecting section is connected to the first end of the jet section. The connecting section is arranged along the first or second spraying station surface. The jet section is located between the outermost ring nozzle and the second outer ring nozzle. The first end of the jet section is located on the side of the second end of the jet section closer to the mounting box.

[0009] Preferably, the distance between the first end of the jet section and the center point is d1, and the distance between the second end of the jet section and the center point is d2, where d1 > d2.

[0010] Preferably, both the first spraying mechanism and the second spraying mechanism further include: a liquid inlet pipe and a liquid inlet seat. The inlet end of the liquid inlet pipe is connected to the main liquid supply pipeline. A liquid inlet seat is installed on the wall of the mounting box. The liquid inlet seat forms at least two annular liquid supply grooves. Each annular liquid supply groove is connected to the outlet end of a liquid inlet pipe. A spray pipe is installed on the liquid inlet seat. The inlet end of each spray pipe is connected to the same annular liquid supply groove.

[0011] Compared with existing technologies, this utility model has the following advantages: The annular external mixing spraying device, with its first and second spraying stations parallel to each other and facing two workpieces to be sprayed respectively, can spray two workpieces simultaneously, greatly improving production efficiency. Both the first and second spraying mechanisms include at least two rings of spray pipes, each arranged on a circular ring with all rings having the same center. Each ring of spray pipes corresponds to the annular groove of the workpiece to be sprayed. This annular distribution of spray pipes ensures uniform and comprehensive spraying of the annular groove of the workpiece, guaranteeing the uniformity of the coating on the workpiece surface and improving spraying quality. The output end of the blower is located between the outermost and second outermost spray pipes, and the distance from the first end of the air jet section to the center point is greater than the distance from the second end of the air jet section to the center point. This design allows the drying airflow to act more precisely on the surface of the sprayed workpiece, effectively removing excess paint and impurities and improving drying efficiency.

[0012] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a ring-shaped external mixing spraying device.

[0014] Figure 2 Perspective view of a ring-shaped external mixing spraying device.

[0015] Figure 3 Perspective view of a ring-shaped external mixing spraying device.

[0016] Reference numerals in the attached drawings: 1. Suspension bracket; 2. Mounting box; 3. First spraying mechanism; 3. Spray pipe; 31. Liquid inlet pipe; 32. Liquid inlet seat; 33. Second spraying mechanism; 4. First drying mechanism; 5. Air inlet pipe; 51. Air inlet seat; 52. First seat; 521. Second seat; 522. Third seat; 523. Air blower; 53. Connecting section; 531. Air jet section; 532. Second drying mechanism; 6. Liquid supply main line; 7. Air supply main line; 8. Detailed Implementation

[0017] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 3As shown, this utility model proposes a ring-shaped external mixing spraying device, including: a suspension frame 1, a mounting box 2, a first spraying mechanism 3, a second spraying mechanism 4, a first drying mechanism 5, a second drying mechanism 6, a liquid supply main pipeline 7, and a gas supply main pipeline 8. The suspension frame 1 suspends the mounting box 2, and the mounting box 2 is provided with a mounting cavity. One vertical surface of the mounting box 2 is the first spraying station surface, and the other vertical surface of the mounting box 2 is the second spraying station surface. The first spraying station surface and the second spraying station surface are parallel to each other. The first spraying station surface faces the workpiece to be sprayed, and the second spraying station surface faces another workpiece to be sprayed. The workpiece is facing forward; the liquid supply main line 7 enters the mounting cavity from the side of the mounting box 2, and the liquid supply main line 7 is connected to the input end of the first spraying mechanism 3 and the input end of the second spraying mechanism 4. The output end of the first spraying mechanism 3 emerges from the first spraying station surface, and the output end of the second spraying mechanism 4 emerges from the second spraying station surface; the air supply main line 8 enters the mounting cavity from the side of the mounting box 2, and the air supply main line 8 is connected to the input end of the first drying mechanism 5 and the input end of the second drying mechanism 6. The output end of the first drying mechanism 5 emerges from the first spraying station surface, and the output end of the second drying mechanism 6 emerges from the second spraying station surface.

[0018] In use, the paint enters the mounting cavity inside the mounting box 2 through the liquid supply main line 7, and is then distributed to the first spraying mechanism 3 and the second spraying mechanism 4 respectively. The spray nozzle 31 of the spraying mechanism sprays the paint evenly onto the surface of the workpiece to be sprayed on the first spraying station surface and the second spraying station surface directly opposite it. Gas enters the mounting cavity from the gas supply main line 8, and enters the first drying mechanism 5 and the second drying mechanism 6 respectively. The air blowing pipe 53 of the drying mechanism blows out the gas to dry the surface of the workpiece that has just been sprayed, so as to remove excess paint and impurities.

[0019] Both the first spraying mechanism 3 and the second spraying mechanism 4 include at least two rings of spray pipes 31. Each ring of spray pipes 31 is arranged on a circular ring, with the centers of all the rings of spray pipes 31 located at a single point. Each spray pipe 31 passes through the wall of the mounting cavity, and the input end of each spray pipe 31 is connected to the main liquid supply line 7. The spray pipes 31 are evenly arranged on different circular rings centered on the same point, and the input end of each spray pipe 31 is connected to the main liquid supply line 7. Under the pressure of the main liquid supply line 7, the paint passes through the wall of the mounting cavity via each spray pipe 31 and is evenly sprayed from the output ends of the spray pipes 31 at the first and second spraying stations.

[0020] Both the first drying mechanism 5 and the second drying mechanism 6 include: a vent pipe 51, a vent seat 52, and a blower pipe 53. The vent seat is installed on the wall of the mounting box 2, and the vent seat has a ventilation cavity. The ventilation cavity is connected to the main air supply line 8 through the vent pipe 51. At least three blower pipes 53 are installed on the vent seat, and the input end of each blower pipe 53 is connected to the ventilation cavity. The second ring of nozzles 31 from the outside in is the second outer ring nozzle 31. The output ends of all blower pipes 53 are located between the outermost ring nozzle 31 and the second outer ring nozzle 31. Gas enters the mounting cavity in the mounting box 2 through the main air supply line 8 and flows into the ventilation cavity of the vent seat through the vent pipe 51. Since the vent seats of the first drying mechanism 5 and the second drying mechanism 6 are each equipped with at least three blower pipes 53, and the input end of each blower pipe 53 is connected to the ventilation cavity, gas is ejected from the output end of the blower pipe 53 under pressure.

[0021] The ventilation seat includes a first seat body 521, a second seat body 522, and a third seat body 523. Each of these three seats is a strip-shaped structure, forming a U-shape. One end of the first seat body 521 is in close contact with one end of the second seat body 522, and the other end of the first seat body 521 is in close contact with one end of the third seat body 523. The inner cavities of the first, second, and third seats are connected to form a ventilation cavity. The first seat body 521 is connected to a vent pipe 51. A main gas supply line 8 provides the gas source, and the gas enters the ventilation cavity within the ventilation seat via the vent pipe 51. The U-shaped structure of the ventilation seat, composed of the first, second, and third seats 523, ensures uniform gas distribution. The gas in the ventilation cavity enters through the input ends of multiple air blowers 53, and the output ends of the air blowers 53 are located between the outermost ring nozzle 31 and the second outer ring nozzle 31, so that during the spraying process, the air blowers 53 can accurately spray the gas onto the surface of the workpiece.

[0022] Each blower pipe 53 includes a connecting section 531 and a jet section 532. The first end of the connecting section 531 is installed on the first base 521, the second base 522 or the third base 523. The connecting section 531 is connected to the ventilation cavity. The second end of the connecting section 531 is connected to the first end of the jet section 532. The connecting section 531 is set along the first spraying station surface or the second spraying station surface. The jet section 532 is located between the outermost ring nozzle 31 and the second outer ring nozzle 31. The first end of the jet section 532 is located on the side of the second end of the jet section 532 that is close to the mounting box 2. The first end of the connecting section 531 is installed on the first seat 521, the second seat 522, or the third seat 523 of the ventilation seat and communicates with the ventilation cavity; the connecting section 531 is set along the first spraying station surface or the second spraying station surface, and its second end is connected to the first end of the jet section 532; the jet section 532 is located between the outermost ring nozzle 31 and the second outer ring nozzle 31, and the first end of the jet section 532 is close to the mounting box 2. When the gas enters the ventilation cavity from the main gas supply line 8, it is guided to the jet section 532 through the connecting section 531, and then sprayed out from the output end of the jet section 532 to form a directional airflow to dry the surface of the workpiece.

[0023] The distance from the first end of jet section 532 to the center point is d1, and the distance from the second end of jet section 532 to the center point is d2, where d1 > d2. Since the distance d1 from the first end of jet section 532 to the center point is greater than the distance d2 from the second end of jet section 532 to the center point, when gas enters jet section 532 through the ventilation cavity and connecting section 531, the gas is ejected at a certain angle and direction, enabling more precise coverage of specific areas on the workpiece surface. When the gas exits from the second end of jet section 532, due to the smaller d2, the gas is closer to the workpiece surface, thus achieving concentrated drying of the freshly sprayed area. Both the first spraying mechanism 3 and the second spraying mechanism 4 further include: a liquid inlet pipe 32 and a liquid inlet seat 33. The inlet end of the liquid inlet pipe 32 is connected to the main liquid supply line 7. The liquid inlet seat 33 is installed on the wall of the mounting box 2, and the liquid inlet seat 33 forms at least two annular liquid supply grooves. Each annular liquid supply groove is connected to the outlet end of a liquid inlet pipe 32. A spray pipe 31 is installed on the liquid inlet seat 33, and the inlet end of each spray pipe 31 is connected to the same annular liquid supply groove. The paint flows from the main liquid supply line 7 into the liquid inlet pipe 32, and then enters the annular liquid supply groove in the liquid inlet seat 33. The liquid inlet seat 33 is installed on the wall of the mounting box 2, and at least two annular liquid supply grooves on it are respectively connected to the inlet ends of the corresponding spray pipes 31. The spray pipes 31 are installed on the liquid inlet seat 33, and the paint is evenly sprayed onto the surface of the workpiece along the spray pipes 31.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A ring-shaped external mixing spraying device, characterized in that, include: The suspension bracket (1), the mounting box (2), the first spraying mechanism (3), the second spraying mechanism (4), the first drying mechanism (5), the second drying mechanism (6), the liquid supply main line (7), and the air supply main line (8); The suspension bracket (1) suspends the mounting box (2). The mounting box (2) has a mounting cavity. One vertical surface of the mounting box (2) is the first spraying station surface, and the other vertical surface of the mounting box (2) is the second spraying station surface. The first spraying station surface and the second spraying station surface are parallel to each other. The first spraying station surface is directly opposite the workpiece to be sprayed, and the second spraying station surface is directly opposite another workpiece to be sprayed. The main liquid supply line (7) passes through the side of the mounting box (2) into the mounting cavity. The main liquid supply line (7) is connected to the input end of the first spraying mechanism (3) and the input end of the second spraying mechanism (4). The output end of the first spraying mechanism (3) emerges from the first spraying station surface, and the output end of the second spraying mechanism (4) emerges from the second spraying station surface. The main gas supply line (8) passes through the side of the mounting box (2) into the mounting cavity. The main gas supply line (8) is connected to the input end of the first drying mechanism (5) and the input end of the second drying mechanism (6). The output end of the first drying mechanism (5) emerges from the first spraying station surface, and the output end of the second drying mechanism (6) emerges from the second spraying station surface.

2. The annular external mixing spraying device according to claim 1, characterized in that, Both the first spraying mechanism (3) and the second spraying mechanism (4) include: at least two rings of spray pipes (31), each ring of spray pipes (31) is arranged on a ring, the center of the ring containing all the rings of spray pipes (31) is at a single point, each spray pipe (31) passes through the wall of the mounting cavity, and the input end of each spray pipe (31) is used to connect to the main liquid supply line (7).

3. The annular external mixing spraying device according to claim 2, characterized in that, The first drying mechanism (5) and the second drying mechanism (6) both include: a ventilation pipe (51), a ventilation seat (52) and a blower pipe (53). The ventilation seat is installed on the wall of the mounting box (2). The ventilation seat has a ventilation cavity. The ventilation cavity is connected to the main gas supply line (8) through the ventilation pipe (51). At least three blower pipes (53) are installed on the ventilation seat. The input end of each blower pipe (53) is connected to the ventilation cavity. The second ring of nozzles (31) from the outside to the inside is the second outer ring nozzle (31). The output ends of all blower pipes (53) are located between the outermost ring nozzle (31) and the second outer ring nozzle (31).

4. The annular external mixing spraying device according to claim 3, characterized in that, The ventilation seat includes a first seat (521), a second seat (522), and a third seat (523). The first seat (521), the second seat (522), and the third seat (523) are all strip-shaped structures. The first seat (521), the second seat (522), and the third seat (523) form a U-shaped structure. One end of the first seat (521) is in close contact with one end of the second seat (522), and the other end of the first seat (521) is in close contact with one end of the third seat (523). The inner cavity of the first seat (521), the inner cavity of the second seat (522), and the inner cavity of the third seat are connected to form a ventilation cavity. The first seat (521) is connected to a ventilation pipe (51).

5. The annular external mixing spraying device according to claim 4, characterized in that, Each blower pipe (53) includes a connecting section (531) and a jet section (532). The first end of the connecting section (531) is installed on the first base (521), the second base (522) or the third base (523). The connecting section (531) is connected to the ventilation cavity. The second end of the connecting section (531) is connected to the first end of the jet section (532). The connecting section (531) is set along the first spraying station surface or the second spraying station surface. The jet section (532) is located between the outermost ring nozzle (31) and the second outer ring nozzle (31). The first end of the jet section (532) is located on the side of the second end of the jet section (532) close to the mounting box (2).

6. The annular external mixing spraying device according to claim 5, characterized in that, The distance between the first end of the jet section (532) and the center point is d1, and the distance between the second end of the jet section (532) and the center point is d2, where d1 > d2.

7. The annular external mixing spraying device according to claim 6, characterized in that, Both the first spraying mechanism (3) and the second spraying mechanism (4) further include: a liquid pipe (32) and a liquid seat (33). The input end of the liquid pipe (32) is connected to the main liquid supply line (7). A liquid seat (33) is installed on the wall of the mounting box (2). The liquid seat (33) forms at least two annular liquid supply grooves. Each annular liquid supply groove is connected to the output end of a liquid pipe (32). A spray pipe (31) is installed on the liquid seat (33). The input end of each annular spray pipe (31) is connected to the same annular liquid supply groove.

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