Paint mist collecting device for water curtain cabinet

Abstract

The invention relates to the technical field of paint mist treatment, in particular to a water curtain cabinet paint mist collecting device which comprises a cabinet body, a conveying pump, a backflow box and a waste gas purifier, the conveying pump is connected with a pipeline extending into the cabinet body and installed on the side wall of the backflow box, and the interior of the backflow box communicates with the interior of the cabinet body; the device further comprises a short pipe, a sprayer, an arc-shaped pipe, a first partition plate, a control assembly, a connecting assembly and an adjusting assembly, and the short pipe is connected to the end of the pipeline. The control assembly is arranged in the short pipe, and the rotating direction of the power structure is controlled to correspondingly change the shape and size of the sectional area of the water outlet of the arc-shaped pipe, so that the granularity of sprayed water mist is changed, and the granularity of the sprayed water mist is changed in combination with the mode that the sprayer is driven by water pressure to rotate in the corresponding direction. The problems that in the prior art, a variable frequency motor is adopted to drive a spray head to rotate, the equipment manufacturing cost is increased, the paint mist collecting cost is high, and the utilization rate of the internal space of a water curtain cabinet is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of paint mist treatment, and particularly to a paint mist collection device for a water curtain cabinet. Background Art

[0002] A water curtain cabinet is an environmental protection device used for operations such as spray painting and coating. It is mainly used to capture and filter paint mist, dust, and volatile organic compounds generated during the spraying process, to prevent the direct emission of organic waste gas generated during spray painting and coating operations into the atmospheric environment, thereby causing air pollution, reducing environmental pollution, and protecting the health of operators. Its core principle is to form a "water curtain" barrier through water flow, use the adsorption effect of water to intercept paint mist particles, and then combine with a circulating water system and a filtering device for purification treatment.

[0003] As the core component of the water curtain cabinet, the water curtain formation system plays a crucial role in the paint mist collection effect. It is usually composed of a water pump, pipes, and nozzles. Since the spraying efficiency changes continuously with the change of the spraying position of the workpiece during spray painting, the particle size of the formed paint mist also changes continuously. In the prior art, to adapt to the change of the paint mist particle size, the nozzle is usually connected to a motor, and the rotation speed of the nozzle is adjusted correspondingly when the paint mist particle size changes, so as to form water mist of corresponding size and ensure the paint mist collection effect. It is found in actual use that the method of driving the nozzle to change the rotation speed by a motor not only requires the selection of a variable frequency motor with adjustable rotation speed, but also requires the installation of supporting equipment such as a frequency converter, resulting in an increase in the manufacturing cost of the equipment, thereby reducing the market competitiveness. Moreover, the installed supporting electrical equipment is in a high humidity environment for a long time, and the service life of the equipment is easily shortened by the environmental effect, thereby resulting in a relatively high paint mist collection cost; in addition, the installed series of equipment will occupy a certain space inside the water curtain cabinet, thereby reducing the space for workpiece spray painting inside the water curtain cabinet, resulting in a reduced utilization rate of the internal space of the water curtain cabinet.

[0004] Therefore, a paint mist collection device for a water curtain cabinet is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a paint mist collection device for a water curtain cabinet. By placing the control component inside the short pipe and controlling the rotation direction of the power structure to correspondingly change the shape and size of the cross-sectional area of the water outlet of the arc pipe, thereby changing the particle size of the sprayed water mist, combined with the method of driving the sprayer to rotate in the corresponding direction by water pressure, it solves the problems in the prior art that the use of a variable-frequency motor to drive the nozzle to rotate causes an increase in the manufacturing cost of the equipment, as well as high paint mist collection costs and low utilization rate of the internal space of the water curtain cabinet. It has the effect of being able to correspondingly change the particle size of the water mist sprayed in the sprayer according to the spraying efficiency of the workpiece without adding large-volume equipment, thereby effectively reducing the overall manufacturing cost and paint mist collection cost, and can also greatly improve the utilization rate of the internal space of the water curtain cabinet, which conforms to the green environmental protection concept of reducing air pollution.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A paint mist collection device for a water curtain cabinet, comprising a cabinet body, a delivery pump, a return tank, and an exhaust gas purifier. The delivery pump is connected to a pipe extending into the cabinet body, and the delivery pump is installed on the side wall of the return tank. The interior of the return tank is communicated with the interior of the cabinet body. It further includes a short pipe, a sprayer, an arc pipe, a first partition, a control component, a connection component, and an adjustment component. The short pipe is connected to the end of the pipe. Two sprayers are symmetrically and rotatably installed at both ends of the short pipe. A plurality of arc pipes are annularly and arrayedly installed on the outer periphery of the short pipe. The first partition is equidistantly installed in the water outlet of the arc pipe. The control component is installed on the inner periphery of the short pipe. Two connection components are respectively rotatably installed at both ends of the control component, and the two connection components are respectively located in the two sprayers. The end of the connection component extends into the arc pipe. The adjustment component is installed at the end of the control component, and the side wall of the adjustment component is in contact with the side wall of the first partition. When the control component exerts pressure on the connection component, the length of the connection component extending into the arc pipe increases, and at the same time, a corresponding-sized misalignment interval is formed between the adjustment component and the first partition.

[0008] Preferably, the water outlet directions of the arc pipes located on both sides of the short pipe are set in opposite directions.

[0009] Preferably, the sprayer includes a cylindrical pipe, a water inlet hole, a threaded cap, and a rotating pipe. The threaded cap is threadedly connected to the side of the cylindrical pipe close to the short pipe. A plurality of water inlet holes are annularly and arrayedly opened on the inner periphery of the cylindrical pipe. The rotating pipe is hermetically connected to the threaded cap and is rotatably connected to the end of the short pipe.

[0010] Preferably, the rotation directions of the two threaded caps located on both sides of the short pipe are set in opposite directions, and the rotation direction of the threaded cap is opposite to the water outlet direction of the arc pipe on the outer periphery of the cylindrical pipe it is connected to.

[0011] Preferably, the control assembly includes a fixed tube, a connecting strip, a power structure, a cross bar, a limiting seat and a conical seat. The connecting strip is installed on the inner circumference of the short tube. The fixed tube is connected to the end of the connecting strip and is located at the center of the short tube. The power structure is installed on the inner circumference of the fixed tube. The limiting seat is fitted and installed on the inner circumference of the fixed tube. The two cross bars are symmetrically arranged with respect to the power structure and are in transmission connection with the power structure. The cross bar is in sliding fit with the limiting seat. An avoidance groove is formed at the end of the cross bar, and a tooth groove is formed on the surface of the end of the cross bar. The conical seat is installed at one end of the cross bar away from the power structure and is in contact with the connecting component. When the power structure is started clockwise, the cross bar moves along the limiting seat towards the connecting component on the corresponding side, and the contact part between the conical seat and the connecting component changes accordingly.

[0012] Preferably, the power structure includes a waterproof motor, a driving gear and a transmission gear. The waterproof motor is installed in the fixed tube. The driving gear is installed at the end of the output shaft of the waterproof motor. The two transmission gears are rotatably installed on the inner circumference of the fixed tube and are symmetrically arranged with respect to the driving gear. The transmission gear is engaged between the driving gear and the tooth groove.

[0013] Preferably, the connecting component includes a rotating end and a connecting structure. The rotating end is rotatably connected to the end of the fixed tube. One end of the connecting structure extends into the rotating end, and the other end extends into the arc tube. The connecting structure is slidably arranged with the rotating end.

[0014] Preferably, the connecting structure includes a fitting seat, a push rod and a spring. The fitting seat is arranged inside the rotating end and is in contact with the conical seat. The push rod is installed at the end of the fitting seat and penetrates through the rotating end in a sliding manner. One end of the push rod away from the fitting seat extends into the arc tube. The spring is sleeved on the outer circumference of the push rod and abuts between the fitting seat and the rotating end.

[0015] Preferably, the adjusting assembly includes a square frame and a second partition. The square frame is installed at one end of the push rod inside the arc tube. The second partitions are installed at equal intervals on the inner circumference of the square frame and are arranged side by side with the first partition in the initial state.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. When the present invention is collecting and treating paint mist, when the spraying efficiency of the workpiece changes, the power structure is controlled to rotate in the corresponding direction. The power mechanism changes the contact part between the conical seat and the connecting component by pushing the cross bar to displace horizontally. The connecting component then correspondingly changes the cross-sectional area and shape of the water outlet of the arc tube, and water mist particles corresponding to the spraying efficiency of the workpiece can be formed. Thus, the collection and treatment effect of the paint mist is fully guaranteed. At the same time, it is avoided to use a frequency conversion motor to drive the sprayer to rotate, and a series of equipment supporting the frequency conversion motor does not need to be installed. While reducing the production cost of the equipment, the utilization rate of the spraying space inside the water curtain cabinet is also greatly improved.

[0018] 2. Through the arranged sprayer and arc tube, the water outlet directions of the arc tubes on both sides of the short tube are arranged in opposite directions. When water flows out from the water outlets at the ends of the arc tubes, the two sprayers rotate in opposite directions at the same time, so as to maintain the rotational balance between the sprayer and the short tube. Thus, it is ensured that the coverage range of the sprayed water mist will not change greatly, which is beneficial to improving the stability of the paint mist collection effect.

[0019] 3. Through the arranged control component, connecting component and adjusting component, the above structures are located between the short tube, the sprayer and the arc tube. By flexibly controlling the starting direction of the power structure to correspondingly change the horizontal position of the cross bar, and then changing the contact part between the conical seat and the connecting component, and jointly changing the relative position between the adjusting component and the water outlet of the arc tube, when realizing the change of the size of the water mist particles formed after the water sprays out from the water outlet of the arc tube, it can more flexibly adapt to the change of the spraying efficiency of the workpiece. When correspondingly adjusting the size of the water mist particles to ensure the paint mist collection effect, it can also not occupy the internal space of the water curtain cabinet, and fully improve the utilization rate of the internal space of the water curtain cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram of the sprayer of the present invention;

[0022] Figure 3 is the structural schematic diagram of the short tube and the connecting component of the present invention;

[0023] Figure 4 is the exploded view of the unilateral sprayer of the present invention;

[0024] Figure 5 is the cross-sectional view of the control component of the present invention;

[0025] Figure 6 is the structural schematic diagram of the cross bar of the present invention;

[0026] Figure 7 is the cross-sectional view of the cylindrical tube of the present invention;

[0027] Figure 8 For the present invention Figure 7 is an enlarged view of the structure at position A in the present invention.

[0028] In the figure: 1, cabinet body; 2, delivery pump; 3, reflux tank; 4, waste gas purifier; 5, short pipe; 6, sprayer; 61, cylindrical pipe; 62, water inlet hole; 63, threaded cap; 64, rotating pipe; 7, arc-shaped pipe; 8, first partition; 9, control assembly; 91, fixed pipe; 92, connecting strip; 93, power structure; 931, waterproof motor; 932, driving gear; 933, driven gear; 94, cross bar; 941, avoidance groove; 942, tooth groove; 95, limiting seat; 96, conical seat; 10, connecting assembly; 101, rotating end; 102, connecting structure; 1021, fitting seat; 1022, push rod; 1023, spring; 11, adjusting assembly; 111, square frame; 112, second partition. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 8 , the present invention provides a water curtain cabinet paint mist collection device, and the technical solution is as follows:

[0031] Refer to Figure 1 , Figure 2 and Figure 3, a water curtain cabinet paint mist collection device, comprising a cabinet body 1, a delivery pump 2, a reflux tank 3, and an exhaust gas purifier 4. The delivery pump 2 is connected to a pipeline extending into the cabinet body 1. The pipeline is used to transport circulating water that forms water mist after being pressurized. And the delivery pump 2 is installed on the side wall of the reflux tank 3. The water inlet pipe of the delivery pump 2 extends into the reflux tank 3. The inside of the reflux tank 3 is communicated with the inside of the cabinet body 1. The water mist gathers on the bottom surface inside the cabinet body 1 after falling. The gathered water flows into the reflux tank 3 through an inclined surface arranged at the bottom of the cabinet body 1. The reflux tank 3 and the exhaust gas purifier 4 are installed on the back side of the cabinet body 1. The exhaust gas purifier 4 is used to guide the air flow inside the cabinet body 1 and perform secondary treatment on the air containing a small amount of paint mist that has not been collected; it also includes a short pipe 5, a sprayer 6, an arc-shaped pipe 7, a first partition 8, a control component 9, a connection component 10, and an adjustment component 11. The short pipe 5 is connected to the end of the pipeline. Two sprayers 6 are symmetrically and rotatably installed at both ends of the short pipe 5. A plurality of arc-shaped pipes 7 are installed in a circular array on the outer periphery of the sprayer 6. When water flows out from the end of the arc-shaped pipe 7, under the action of water pressure, the arc-shaped pipe 7 and the sprayer 6 can be driven to rotate in the direction opposite to the water flow. The first partition 8 is installed at equal intervals in the water outlet of the arc-shaped pipe 7. The control component 9 is installed on the inner periphery of the short pipe 5. The inner peripheral diameter of the short pipe 5 is correspondingly enlarged to compensate for the cross-sectional area of the inner periphery of the short pipe 5 occupied by the control component 9, ensuring that the water output of the sprayer 6 is not reduced due to the influence of the internally arranged control component 9. Two connection components 10 are respectively rotatably installed at both ends of the control component 9, and the two connection components 10 are respectively located in the two sprayers 6. When the sprayer 6 rotates, the connection component 10 and the control component 9 maintain relative rotation. The end of the connection component 10 extends into the arc-shaped pipe 7. The adjustment component 11 is installed at the end of the control component 9, and the side wall of the adjustment component 11 is attached to the side wall of the first partition 8. When the control component 9 presses the connection component 10 towards the connection component 10 side, the length of the connection component 10 extending into the arc-shaped pipe 7 increases. At the same time, a misalignment interval of corresponding size is formed between the adjustment component 11 and the first partition 8.

[0032] Referring to Figure 2 , as an implementation manner of the present invention, specifically, the water outlet directions of the arc-shaped pipes 7 on both sides of the short pipe 5 are set in the opposite direction. When water flows out from the water outlets of the arc-shaped pipes 7, the arc-shaped pipes 7 drive the sprayer 6 to rotate under the action of the water flow. Since the water outlet directions of the arc-shaped pipes 7 on both sides of the short pipe 5 are set in the opposite direction, the sprayers 6 on both sides of the short pipe 5 rotate in opposite directions simultaneously. Thus, the stability between the short pipe 5 and the sprayer 6 can be improved.

[0033] Referring to Figure 4, as an embodiment of the present invention, specifically, the sprayer 6 includes a cylindrical tube 61, a water inlet hole 62, a threaded cap 63 and a rotating tube 64. The threaded cap 63 is threadedly connected to the cylindrical tube 61 near the short tube 5. A plurality of water inlet holes 62 are arranged in an annular array on the inner circumference of the cylindrical tube 61. The rotating tube 64 is hermetically connected to the threaded cap 63 and is rotatably connected to the end of the short tube 5. The rotating tube 64 is connected to the end of the short tube 5 through a sealed bearing, thereby preventing water from leaking from the connection position between the short tube 5 and the rotating tube 64. Water enters the cylindrical tube 61 from the short tube 5 and then enters the arc tube 7 through the water inlet hole 62. The rotation directions of the two threaded caps 63 on both sides of the short tube 5 are opposite, and the rotation direction of the threaded cap 63 is opposite to the water outlet direction of the arc tube 7 on the outer circumference of the cylindrical tube 61 to which it is connected. Under the action of the opposite rotation directions of the threaded caps 63, when the cylindrical tube 61 rotates, the threaded cap 63 can be kept in close fit with the cylindrical tube 61.

[0034] Refer to Figure 4 , Figure 5 and Figure 6, as an implementation manner of the present invention, specifically, the control component 9 includes a fixed pipe 91, a connecting bar 92, a power structure 93, a cross bar 94, a limiting seat 95 and a conical seat 96. The connecting bar 92 is installed on the inner circumference of the short pipe 5. The fixed pipe 91 is connected to the end of the connecting bar 92, and the fixed pipe 91 is located at the center position of the short pipe 5. A lithium battery and a remote infrared circuit control board are installed inside the fixed pipe 91. The lithium battery is used to supply power to the control component 9, and the remote infrared circuit control board is used to turn on and switch the driving direction of the control component 9. An annular groove is provided at the position of the fixed pipe 91 for installing the lithium battery. The lithium battery is fitted and installed in the annular groove, and the fixed pipe 91 is of a spliced structure. The installation part of the lithium battery and the fixed pipe 91 is a splicing part with an isosceles trapezoidal cross-section, and the splicing part is in sealed contact with the fixed pipe 91, thus avoiding the inconvenience caused by replacing the lithium battery; the position between the fixed pipe 91 and the short pipe 5 remains relatively fixed. Since the fixed pipe 91 is arranged inside the short pipe 5, the internal cross-sectional area of the short pipe 5 becomes smaller. Therefore, the diameter is increased at the overlapping position of the short pipe 5 and the fixed pipe 91, thus avoiding the problem that the internal water flow cross-sectional area of the short pipe 5 becomes smaller due to the fixed pipe 91 being arranged inside the short pipe 5; the power structure 93 is installed on the inner circumference of the fixed pipe 91. The limiting seat 95 is fitted and installed on the inner circumference of the fixed pipe 91. Two cross bars 94 are symmetrically arranged with respect to the power structure 93, and the cross bars 94 are in transmission connection with the power structure 93. The cross bars 94 are in sliding contact with the limiting seat 95. An avoidance groove 941 is provided at the end of the cross bar 94, and a tooth groove 942 is provided on the surface of the end of the cross bar 94. The conical seat 96 is installed at one end of the cross bar 94 away from the power structure 93, and the conical seat 96 is in contact with the connecting component 10. When the power structure 93 starts clockwise, the cross bar 94 moves along the limiting seat 95 towards the connecting component 10 on the corresponding side, and the contact part between the conical seat 96 and the connecting component 10 changes correspondingly. When the power structure 93 rotates in the corresponding direction, it controls the two cross bars 94 symmetrically arranged with respect to the center of the power structure 93 to move in opposite directions at the same time, and the cross bars 94 maintain horizontal movement under the action of the limiting seat 95. When the cross bar 94 generates a horizontal displacement, it drives the conical seat 96 to move horizontally together, thereby changing the contact part between the conical seat 96 and the connecting component 10 in contact with it, and thus changing the relative position between the connecting component 10 and the arc-shaped pipe 7.

[0035] Refer to Figure 5, as an implementation manner of the present invention, specifically, the power structure 93 includes a waterproof motor 931, a driving gear 932 and a transmission gear 933. The waterproof motor 931 is installed in the fixed pipe 91, the driving gear 932 is installed at the end of the output shaft of the waterproof motor 931, and the two transmission gears 933 are rotatably installed on the inner circumference of the fixed pipe 91, and the two transmission gears 933 are symmetrically arranged with respect to the driving gear 932. The transmission gear 933 is engaged between the driving gear 932 and the tooth groove 942. When the waterproof motor 931 is started, it drives the driving gear 932 to rotate in the same direction. Then, the driving gear 932 drives the two transmission gears 933 engaged therewith to rotate. The transmission gear 933 drives the cross bar 94 to horizontally move in the corresponding direction through the tooth groove 942. Since the two cross bars 94 are centrally symmetrically arranged with respect to the driving gear 932, when the driving gear 932 rotates, the two cross bars 94 translate in opposite directions simultaneously.

[0036] Refer to Figure 5 and Figure 7 , as an implementation manner of the present invention, specifically, the connection assembly 10 includes a rotating end 101 and a connection structure 102. The rotating end 101 is rotatably connected to the end of the fixed pipe 91. One end of the connection structure 102 extends into the rotating end 101, and the other end thereof extends into the arc-shaped pipe 7. The connection structure 102 is slidably arranged with the rotating end 101. The rotating end 101 can rotate together with the cylindrical pipe 61, and when the rotating end 101 rotates, it rotates relative to the fixed pipe 91. When the rotating end 101 rotates, the connection structure 102 rotates therewith.

[0037] Refer to Figure 5 、 Figure 6 and Figure 8, as an embodiment of the present invention, specifically, the connection structure 102 includes a fitting seat 1021, a push rod 1022, and a spring 1023. The fitting seat 1021 is arranged inside the rotating end 101 and is in contact with the conical seat 96. The push rod 1022 is installed at the end of the fitting seat 1021 and is slidably penetrated through the rotating end 101. The waterproof motor 931, the lithium battery, and the circuit connected therebetween are all waterproofed. Therefore, there is no need to waterproof the connection between the push rod 1022 and the rotating end 101. Teflon coatings are applied to the outer circumference of the push rod 1022 and the opening part of the rotating end 101 adapted to the push rod 1022 to enable the push rod 1022 to slide more smoothly. One end of the push rod 1022 away from the fitting seat 1021 extends into the arc-shaped tube 7. The spring 1023 is sleeved on the outer circumference of the push rod 1022 and abuts between the fitting seat 1021 and the rotating end 101. When the conical seat 96 generates a horizontal displacement along with the cross bar 94, the contact part between the fitting seat 1021 and the conical seat 96 changes accordingly. Therefore, the distance between adjacent fitting seats 1021 also changes. When the cross bar 94 moves towards the rotating end 101, the distance between adjacent fitting seats 1021 increases, causing the push rod 1022 to move into the arc-shaped tube 7, thereby changing the relative position between the adjusting assembly 11 and the water outlet of the arc-shaped tube 7. At the same time, the spring 1023 is in a compressed state. When the waterproof motor 931 rotates in the reverse direction, the fitting seat 1021, which loses the external force of the cross bar 94 and the conical seat 96, can move towards the conical seat 96 under the action of the spring 1023 and always remain in contact with the conical seat 96, thereby resetting the adjusting assembly 11.

[0038] Referring to Figure 3 , as an embodiment of the present invention, specifically, the adjusting assembly 11 includes a square frame 111 and a second partition 112. The square frame 111 is installed at one end of the push rod 1022 inside the arc-shaped tube 7. The second partition 112 is equally spaced and installed on the inner circumference of the square frame 111. In the initial state, the second partition 112 is arranged side by side with the first partition 8. When the length of the part of the push rod 1022 inside the arc-shaped tube 7 changes, the square frame 111 moves accordingly, causing the second partition 112 to be misaligned with the first partition 8, and forming intervals of corresponding sizes at the water outlet of the arc-shaped tube 7, thereby changing the particle size of the sprayed water mist.

[0039] Working principle: Water is transported into the short pipe 5 under the action of the conveying pump 2, and then enters the sprayer 6 and is sprayed out from the water outlet at the end of the arc-shaped pipe 7 to form water mist of corresponding size; when the spraying efficiency of the workpiece changes, the power structure 93 in the remote infrared remote control driving control component 9 is driven to rotate in the corresponding direction. When the power structure 93 rotates, the cross bar 94 is controlled to move horizontally in the corresponding direction through the tooth groove 942, thereby changing the distance between the conical seat 96 and the rotating end 101 on this side. At this time, the contact part between the conical seat 96 and the connecting structure 102 changes, and then the length of the part of the connecting structure 102 extending into the arc-shaped pipe 7 changes, and the relative position between the adjusting component 11 and the water outlet of the arc-shaped pipe 7 changes, thereby realizing the corresponding adjustment of the cross-sectional area size and shape of the water outlet of the arc-shaped pipe 7 to adjust the particle size of the sprayed water mist, and ensuring the capture and collection effect of the sprayed water mist on the paint mist;

[0040] Specifically, when the spraying efficiency decreases, the amount of paint sprayed per unit time decreases, and the particle size of the formed paint mist also becomes smaller accordingly. To ensure the capture effect of the water mist on the paint mist with smaller size, it is necessary to correspondingly reduce the particle size of the water mist. At this time, the waterproof motor 931 is controlled to rotate clockwise by the remote infrared remote control. Referring to Figure 5 , the output shaft of the waterproof motor 931 drives the driving gear 932 to rotate clockwise, and then the two transmission gears 933 rotate counterclockwise at the same time. The two transmission gears 933 drive the two cross bars 94 symmetrically distributed about the center of the driving gear 932 to translate along the limit seat 95 towards the rotating end 101 on the corresponding side through the tooth groove 942. When the cross bar 94 translates, the conical seat 96 moves horizontally synchronously, and then the contact position between the fitting seat 1021 and the conical seat 96 changes. At this time, the length of the part of the push rod 1022 located inside the rotating end 101 decreases, and then the length of the part of the push rod 1022 located inside the arc-shaped pipe 7 increases, so that the second partition 112 and the first partition 8 are misaligned and form a smaller interval. Without adjusting the water pressure, the particle size of the sprayed water mist is smaller. When the spraying efficiency increases, the waterproof motor 931 is controlled to rotate in the reverse direction, and the fitting seat 1021 moves towards the conical seat 96 under the action of the spring 1023, and then the length of the part of the push rod 1022 extending into the rotating end 101 increases, thereby matching the change of the spraying efficiency of the workpiece and fully ensuring the collection effect of the paint mist.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paint mist collection device for a water curtain cabinet, comprising a cabinet body (1), a delivery pump (2), a reflux tank (3), and an exhaust gas purifier (4). The delivery pump (2) is connected to a pipeline extending into the cabinet body (1), and the delivery pump (2) is installed on the side wall of the reflux tank (3). The interior of the reflux tank (3) is in communication with the interior of the cabinet body (1), and it is characterized in that: It also includes a short pipe (5), a sprayer (6), an arc-shaped pipe (7), a first partition plate (8), a control component (9), a connection component (10), and an adjustment component (11). The short pipe (5) is connected to the end of the pipeline. The two sprayers (6) are symmetrically and rotatably installed at both ends of the short pipe (5). A plurality of the arc-shaped pipes (7) are installed in a circular array on the outer periphery of the sprayer (6). The first partition plate (8) is installed at equal intervals in the water outlet of the arc-shaped pipe (7). The control component (9) is installed on the inner periphery of the short pipe (5). The two connection components (10) are respectively rotatably installed at both ends of the control component (9), and the two connection components (10) are respectively located in the two sprayers (6). The end of the connection component (10) extends into the arc-shaped pipe (7). The adjustment component (11) is installed at the end of the control component (9), and the side wall of the adjustment component (11) is attached to the side wall of the first partition plate (8). When the control component (9) presses on the connection component (10), the length of the connection component (10) extending into the arc-shaped pipe (7) increases, and at the same time, the adjustment component (11) and the first partition plate (8) form a misalignment interval of corresponding size.

2. The paint mist collection device for the water curtain cabinet according to claim 1, wherein: The water outlet directions of the arc-shaped pipes (7) located on both sides of the short pipe (5) are set in opposite directions.

3. The paint mist collection device for the water curtain cabinet according to claim 2, wherein: The sprayer (6) includes a cylindrical pipe (61), a water inlet hole (62), a threaded cap (63), and a rotating pipe (64). The threaded cap (63) is threadedly connected to the side of the cylindrical pipe (61) close to the short pipe (5). A plurality of the water inlet holes (62) are arranged in a circular array on the inner periphery of the cylindrical pipe (61). The rotating pipe (64) is hermetically connected to the threaded cap (63), and the rotating pipe (64) is rotatably connected to the end of the short pipe (5).

4. The paint mist collection device for the water curtain cabinet according to claim 3, wherein: The rotation directions of the two threaded caps (63) located on both sides of the short pipe (5) are set in opposite directions, and the rotation direction of the threaded cap (63) is opposite to the water outlet direction of the arc-shaped pipe (7) on the outer periphery of the cylindrical pipe (61) to which it is connected.

5. The paint mist collection device for a water curtain cabinet according to claim 1, wherein: The control component (9) includes a fixed pipe (91), a connecting bar (92), a power structure (93), a cross bar (94), a limiting seat (95) and a conical seat (96). The connecting bar (92) is installed on the inner circumference of the short pipe (5). The fixed pipe (91) is connected to the end of the connecting bar (92), and the fixed pipe (91) is located at the central position of the short pipe (5). The power structure (93) is installed on the inner circumference of the fixed pipe (91). The limiting seat (95) is fitted and installed on the inner circumference of the fixed pipe (91). The two cross bars (94) are symmetrically arranged with respect to the power structure (93), and the cross bar (94) is in transmission connection with the power structure (93). The cross bar (94) is slidably fitted with the limiting seat (95). An avoidance groove (941) is formed at the end of the cross bar (94), and a tooth groove (942) is formed on the surface of the end of the cross bar (94). The conical seat (96) is installed at one end of the cross bar (94) away from the power structure (93), and the conical seat (96) abuts against the connection component (10). When the power structure (93) starts clockwise, the cross bar (94) moves along the limiting seat (95) towards the connection component (10) on the corresponding side, and the contact part between the conical seat (96) and the connection component (10) changes correspondingly.

6. The paint mist collection device for a water curtain cabinet according to claim 5, wherein: The power structure (93) includes a waterproof motor (931), a driving tooth (932) and a transmission tooth (933). The waterproof motor (931) is installed in the fixed pipe (91). The driving tooth (932) is installed at the end of the output shaft of the waterproof motor (931). The two transmission teeth (933) are both rotatably installed on the inner circumference of the fixed pipe (91), and the two transmission teeth (933) are symmetrically arranged with respect to the driving tooth (932). The transmission tooth (933) is engaged between the driving tooth (932) and the tooth groove (942).

7. The water curtain cabinet paint mist collection device according to claim 5, characterized in that: The connection component (10) includes a rotating end (101) and a connection structure (102). The rotating end (101) is rotatably connected to the end of the fixed pipe (91). One end of the connection structure (102) extends into the rotating end (101), and the other end thereof extends into the arc-shaped pipe (7). The connection structure (102) is slidably arranged with the rotating end (101).

8. The paint mist collection device for a water curtain cabinet according to claim 7, wherein: The connection structure (102) includes a fitting seat (1021), a push rod (1022) and a spring (1023). The fitting seat (1021) is arranged inside the rotating end (101), and the fitting seat (1021) is in contact with the conical seat (96). The push rod (1022) is installed at the end of the fitting seat (1021), and the push rod (1022) penetrates through the rotating end (101) in a sliding manner. One end of the push rod (1022) away from the fitting seat (1021) extends into the arc-shaped pipe (7). The spring (1023) is sleeved on the outer circumference of the push rod (1022), and the spring (1023) abuts between the fitting seat (1021) and the rotating end (101).

9. The paint mist collection device for a water curtain cabinet according to claim 8, characterized in that: The adjusting component (11) includes a square frame (111) and a second partition plate (112). The square frame (111) is installed at one end of the push rod (1022) located inside the arc-shaped tube (7). The second partition plates (112) are installed at equal intervals on the inner circumference of the square frame (111), and the second partition plates (112) are arranged side by side with the first partition plate (8) in the initial state.

Images