Water curtain paint spraying cabinet

Abstract

A water curtain paint spraying cabinet relates to the technical field of paint spraying equipment and comprises a water curtain cabinet body, the water curtain cabinet body comprises a paint spraying chamber, a paint mist treatment chamber communicated with the paint spraying chamber, a water curtain plate and a fan assembly, the paint mist treatment chamber comprises a first chamber and a second chamber which are communicated with each other, the first chamber is located below the second chamber, and the water curtain plate is located below the first chamber. And the internal space of the first cavity is gradually reduced from top to bottom. By the adoption of the technical scheme, when the fan assembly works, large negative pressure can be generated at the communicating position of the first cavity and the paint spraying chamber, so that the speed of paint mist entering the first cavity is increased, the paint mist treatment efficiency is improved, the amount of the paint mist remaining in the paint spraying chamber is reduced, the paint spraying quality of workpieces is guaranteed, practicability is high, and practicability is high. Good market popularization prospects are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paint spraying equipment technical field, concretely relates to a water curtain paint spraying cabinet. BACKGROUND

[0002] The water curtain paint spraying cabinet is with water as medium, and water overflows from the water curtain plate and forms a certain thickness of uniform water film on the water curtain plate, and the operator carries out spraying work towards the water curtain, and paint mist flows towards the water curtain with air under the action of the exhaust fan, and the paint mist is brought to the circulating water pool at the lower part of the paint spraying room after colliding with the water curtain plate, and paint mist produced during spraying work is removed from air through water.

[0003] The existing water curtain paint spraying cabinet mainly comprises a paint spraying chamber, a paint mist treatment chamber and a water curtain plate, the bottom side of the paint spraying chamber is provided with a water pool, the top of the water curtain plate is provided with a water groove, the water curtain plate and the water pool liquid surface form a paint mist inlet for the paint mist to enter the paint mist treatment chamber, and the top of the paint mist treatment chamber is communicated with an exhaust fan. However, the existing paint mist treatment chamber is usually a square cavity, the internal air pressure distribution is relatively uniform, so that under the condition that the power of the exhaust fan remains constant, the negative pressure generated at the paint mist inlet is small, the paint mist in the paint spraying chamber is difficult to be quickly sucked into the paint mist treatment chamber, the paint mist treatment efficiency is reduced, and a large amount of paint mist is retained in the paint spraying chamber, affecting the paint spraying quality of the workpiece. SUMMARY

[0004] The utility model discloses a water curtain paint spraying cabinet, which solves the problem of the existing water curtain paint spraying cabinet that the paint mist treatment chamber is usually a square cavity with uniform internal air pressure distribution, the negative pressure generated at the paint mist inlet is small, the paint mist in the paint spraying chamber is difficult to be quickly sucked into the paint mist treatment chamber, the paint mist treatment efficiency is low, and a large amount of paint mist is retained in the paint spraying chamber, affecting the paint spraying quality of the workpiece.

[0005] The utility model discloses a water curtain paint spraying cabinet, which solves the problem of the existing water curtain paint spraying cabinet that the paint mist treatment chamber is usually a square cavity with uniform internal air pressure distribution, the negative pressure generated at the paint mist inlet is small, the paint mist in the paint spraying chamber is difficult to be quickly sucked into the paint mist treatment chamber, the paint mist treatment efficiency is low, and a large amount of paint mist is retained in the paint spraying chamber, affecting the paint spraying quality of the workpiece.

[0006] Optionally, the water curtain plate separates the interior of the water curtain cabinet body into the paint spraying chamber and the paint mist treatment chamber, the rear end plate of the water curtain cabinet body comprises an inclined lower plate and a vertical upper plate on the lower plate, the lower plate, the bottom plate of the water curtain cabinet body and the water curtain plate cooperate to form the first cavity of the paint mist treatment chamber, the upper plate, the top plate of the water curtain cabinet body and the water curtain plate cooperate to form the second cavity of the paint mist treatment chamber, and the top of the second cavity is provided with a paint mist outlet communicated with the fan assembly.

[0007] Optionally, at least one spoiler is arranged on the lower plate and the water curtain plate, the spoilers arranged on the lower plate and the water curtain plate are located in the first chamber and are arranged in a staggered manner, and the spoilers are arranged in an inclined downward manner.

[0008] Optionally, at least two groups of spray assemblies are arranged in the first chamber, and the at least two groups of spray assemblies correspond to the lower sides of the spoilers arranged on the lower plate and the water curtain plate, respectively.

[0009] Optionally, the spray assembly comprises a water pipe fixedly arranged below the spoiler and a plurality of spray heads uniformly distributed on the water pipe, and the water spraying angles of the plurality of spray heads correspond to the inclined angles of the spoilers.

[0010] Optionally, a plurality of maintenance openings are arranged on the lower plate, a maintenance door for closing the maintenance openings is detachably connected to the lower plate, and an observation window for observing the internal condition of the paint mist treatment chamber is arranged on the maintenance door.

[0011] Optionally, a sawtooth plate is arranged on the bottom side of the water curtain plate, a water curtain collecting plate is arranged on the bottom of the side of the first chamber of the paint mist treatment chamber facing the paint spraying chamber, and the water curtain collecting plate and the sawtooth plate cooperatively form a paint mist inlet, so that the paint mist in the paint spraying chamber enters the first chamber of the paint mist treatment chamber through the paint mist inlet.

[0012] Optionally, an overflow groove is arranged at the top end of the side of the water curtain plate facing the paint spraying chamber, a water storage pool is arranged below the water curtain plate, the water storage pool is in communication with the paint spraying chamber and the paint mist treatment chamber, a water pump is arranged on the water curtain cabinet body, the water pump is connected to the overflow groove through a pipeline, so that the water in the water storage pool is continuously delivered into the overflow groove, and a water curtain is formed at the paint mist inlet when the water in the overflow groove overflows.

[0013] Optionally, a water collecting groove in communication with the water storage pool is arranged on the water curtain cabinet body, the water collecting groove is located on the side of the paint mist treatment chamber away from the paint spraying chamber, and the water inlet of the water pump extends into the water collecting groove.

[0014] Optionally, the water pump is arranged at one end of the water collecting groove, and a plurality of filter screens are arranged between the communication opening of the water collecting groove and the water inlet of the water pump.

[0015] After the above technical scheme is adopted, the paint mist treatment chamber has the following beneficial effects:

[0016] The present application divides the paint mist treatment chamber into a first chamber and a second chamber, and meanwhile, the internal space of the first chamber is arranged in a gradually decreasing manner from top to bottom, so that when the fan assembly is working, a greater negative pressure is generated at the communication between the first chamber and the paint spraying chamber, thereby accelerating the speed of paint mist entering the first chamber, improving the paint mist treatment efficiency, and further reducing the amount of paint mist remaining in the paint spraying chamber, ensuring the paint spraying quality of the workpiece, having strong practicability, and having a better market prospect. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0018] Figure 1 is a schematic view of the overall structure of the embodiment;

[0019] Figure 2 is a partial cross-sectional view of the embodiment;

[0020] Figure 3 is Figure 2 is an enlarged view of part A in the figure;

[0021] Figure 4 is another perspective view of the embodiment;

[0022] Figure 5 is a partial view of the embodiment.

[0023] The figure reference is explained as follows: 100, water curtain cabinet body; 101, lower plate; 102, upper plate; 103, access hole; 104, access door; 105, observation window; 10, paint spraying chamber; 20, paint mist treatment chamber; 21, first chamber; 211, paint mist inlet; 212, water curtain water receiving plate; 22, second chamber; 221, paint mist outlet; 30, water curtain plate; 31, spoiler; 32, serrated plate; 33, overflow groove; 40, spray assembly; 41, water pipe; 42, spray head; 50, water storage pool; 60, water pump; 70, water collecting groove; 701, filter screen. DETAILED DESCRIPTION

[0024] The following will combine the drawings in the embodiments of the present application to Figures 1-5The technical solutions in the embodiments of the present application are clearly and completely described, and obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0026] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is also not within the scope of protection required by the present application.

[0027] The present embodiment relates to a water curtain paint spraying cabinet, referring to Figures 1-5 , comprising a water curtain cabinet body 100, the water curtain cabinet body 100 comprises a paint spraying chamber 10, a paint mist treatment chamber 20, a water curtain plate 30 and a fan assembly (not shown in the figure), wherein the paint mist treatment chamber 20 comprises at least two cavities, in the present embodiment, the paint mist treatment chamber 20 comprises two cavities in communication with each other, which are a first cavity 21 and a second cavity 22, the first cavity 21 is located below the second cavity 22 and communicates with the paint spraying chamber 10, and the internal space of the first cavity 21 is gradually reduced from top to bottom, and at this time the fan assembly communicates with the second cavity 22.

[0028] It should be noted that in other embodiments, the paint spraying chamber 10 can also be provided with three or more cavities, and the fan assembly can correspondingly communicate with the uppermost cavity, which is not limited here.

[0029] It can be understood that during work, workers (or reciprocating paint sprayers) perform paint spraying work on workpieces in the paint spraying chamber 10, and a large amount of paint mist is generated at this time. At this time, the air in the paint mist treatment chamber 20 is sucked by driving the fan assembly to work. Since the first chamber 21 is located below the second chamber 22, and the internal space of the first chamber 21 is gradually reduced from top to bottom, the suction force of the first chamber 21 is greater than that of the second chamber 22, that is, a larger negative pressure is generated at the communication port of the first chamber 21 and the paint spraying chamber 10, and the paint mist in the paint spraying chamber 10 is sucked in. Compared with the traditional paint mist treatment chamber 20, more paint mist can be sucked into the paint mist treatment chamber 20 for treatment under the condition that the power of the fan is unchanged, thereby speeding up the paint mist treatment speed, reducing the amount of paint mist in the paint spraying chamber 10, and further ensuring the paint spraying quality of the workpiece.

[0030] Further, referring to Figure 1 and Figure 2 , the water curtain plate 30 divides the interior of the water curtain cabinet body 100 into the paint spraying chamber 10 and the paint mist treatment chamber 20. The rear end plate of the water curtain cabinet body 100 includes an inclined lower plate 101 and an upper plate 102 vertically arranged on the lower plate 101. The lower plate 101, the bottom plate of the water curtain cabinet body 100, and the water curtain plate 30 cooperate to form the first chamber 21 of the paint mist treatment chamber 20. The upper plate 102, the top plate of the water curtain cabinet body 100, and the water curtain plate 30 cooperate to form the second chamber 22 of the paint mist treatment chamber 20. The communication port of the first chamber 21 and the paint spraying chamber 10 is located at the bottom of the first chamber 21, and the top of the second chamber 22 is provided with a paint mist outlet 221 communicated with the fan assembly.

[0031] The interior of the water curtain cabinet body 100 is divided into the paint spraying chamber 10 and the paint mist treatment chamber 20 by the water curtain plate 30, so that the interior of the water curtain cabinet body 100 is more compact, which is conducive to reducing the volume of the water curtain cabinet body 100. At the same time, through the arrangement of the lower plate 101 and the upper plate 102, a first chamber 21 with an internal space gradually increasing from bottom to top and a second chamber 22 with a stable internal space can be formed in cooperation with the water curtain plate 30, so that a larger negative pressure can be generated at the communication port of the first chamber 21 and the paint spraying chamber 10, so as to more quickly suck the paint mist in the paint spraying chamber 10.

[0032] Further, at least one spoiler 31 is arranged on the side of the lower plate 101 opposite to the water curtain plate 30. The spoilers 31 arranged on the lower plate 101 and the water curtain plate 30 are located in the first chamber 21 and are arranged in a staggered manner, and the spoilers 31 are all arranged inclined downward.

[0033] In this embodiment, the number of spoilers 31 arranged on the lower plate 101 and the water curtain plate 30 is one. In other embodiments, the number of spoilers 31 can be increased according to actual conditions, which is not limited here.

[0034] The air flow in the first chamber 21 is disturbed by the spoiler 31, so that the paint mist sucked into the first chamber 21 can only pass through the gap formed by the two spoilers 31 to be sucked into the second chamber 22, thereby facilitating the next step of processing the paint mist.

[0035] Further, referring to Figure 2 and Figure 3 , at least two groups of spray assemblies 40 are further arranged in the first chamber 21, and the at least two groups of spray assemblies 40 are respectively arranged below the spoilers 31 arranged on the lower plate 101 and the water curtain plate 30, so as to form at least two water mists in the first chamber 21 for capturing the paint mist.

[0036] In the embodiment, the number of spray assemblies 40 is two groups, and the two groups of spray assemblies 40 are respectively arranged below the two spoilers 31. Specifically, the spray assembly 40 includes a water pipe 41 fixed below the spoiler 31 and a plurality of spray heads 42 uniformly distributed on the water pipe 41, and the water pipe 41 is communicated with a water supply member, and the spray angles of the plurality of spray heads 42 correspond to the inclination angles of the spoilers 31.

[0037] By spraying two water mists in the first chamber 21 by the two groups of spray assemblies 40, the paint mist in the first chamber 21 and blown from the first chamber 21 to the second chamber 22 is captured, thereby greatly reducing the amount of paint mist sucked into the second chamber 22, i.e. reducing the amount of paint mist sucked into the fan assembly, improving the paint mist processing effect, and reducing environmental pollution.

[0038] Further, a plurality of maintenance openings 103 are arranged on the lower plate 101, and a maintenance door 104 for closing the maintenance opening 103 is detachably connected to the lower plate 101, and an observation window 105 for observing the internal condition of the paint mist processing chamber 20 is arranged on the maintenance door 104.

[0039] It can be understood that during operation, the internal condition of the paint mist processing chamber 20 can be observed by the staff through the observation window 105 to ensure the normal operation of the paint mist processing, and when the paint mist processing chamber 20 is observed to have conditions such as damaged spray heads 42 or needs daily maintenance, the internal maintenance of the paint mist processing chamber 20 can be performed by detaching the maintenance door 104, which is simple and convenient to operate and has strong practicality.

[0040] Further, a sawtooth plate 32 is arranged on the bottom side of the water curtain plate 30, and a water curtain water receiving plate 212 is arranged on the bottom of the side of the first chamber 21 of the paint mist processing chamber 20 facing the paint spraying chamber 10, and the water curtain water receiving plate 212 cooperates with the sawtooth plate 32 to form a paint mist inlet 211 (i.e. the communication port of the first chamber 21 and the paint spraying chamber 10), so that the paint mist in the paint spraying chamber 10 enters the first chamber 21 through the paint mist inlet 211.

[0041] Further, referring to Figure 4 and Figure 5 , the water curtain plate 30 is provided with an overflow groove 33 at the top end of the side facing the paint spraying chamber 10, and the water curtain plate 30 is provided with a water storage tank 50 below, the water storage tank 50 is communicated with the paint spraying chamber 10 and the paint mist treatment chamber 20, and the water curtain cabinet body 100 is provided with a water pump 60, the water pump 60 is connected to the overflow groove 33 and the water storage tank 50 through a pipeline, so that the water in the water storage tank 50 is continuously transported into the overflow groove 33, and when the water in the overflow groove 33 overflows, a water curtain can be formed at the paint mist inlet 211.

[0042] It can be understood that through the cooperation of the sawtooth plate 32 and the water curtain plate 30, a water curtain can be formed at the paint mist inlet 211 when the overflow groove 33 is full of water, and the paint mist entering the first chamber 21 from the paint mist inlet 211 can be captured by the water curtain, that is, the paint mist is hit into the water storage tank 50 by the water curtain, thereby reducing the amount of paint mist entering the first chamber 21 and improving the paint mist treatment effect.

[0043] Further, the water curtain cabinet body 100 is provided with a water collecting groove 70 communicated with the water storage tank 50, the water collecting groove 70 is located on the side of the paint mist treatment chamber 20 away from the paint spraying chamber 10, and the water inlet of the water pump 60 extends into the water collecting groove 70.

[0044] It can be understood that through the setting of the water collecting groove 70, when the paint residue formed by the paint mist in the water is cleaned, it is not necessary to enter the paint spraying chamber 10, and the paint residue can be directly cleaned outside the water curtain cabinet body 100, which facilitates the cleaning work of the staff.

[0045] In order to avoid the situation that the paint residue formed by the paint mist in the water enters the water pump 60 and causes damage to the water pump 60, a plurality of filter screens 701 are arranged between the communication port of the water collecting groove 70 and the water storage tank 50 and the water inlet of the water pump 60. The paint residue is filtered by the filter screen 701, thereby effectively avoiding the phenomenon that the paint residue enters the water pump 60, and prolonging the service life of the water pump 60.

[0046] In addition, it should be noted that the water supply member of the spray assembly 40 is the water pump 60 arranged on the water collecting groove 70, the water inlet of the water pump 60 extends into the water collecting groove 70, and the water outlet of the water pump 60 is communicated with three pipelines, two of which are respectively communicated with the water pipes 41 of the two groups of spray assemblies 40 in the first chamber 21, and the other pipeline is communicated with the overflow groove 33. During operation, the water pump 60 transports the water in the water collecting groove 70 to the water pipes 41 of the spray assemblies 40 and the overflow groove 33, respectively, the water in the water pipes 41 is sprayed out by the spray heads 42 and falls into the water storage tank 50, the water in the overflow groove 33 falls into the water storage tank 50 after forming a water curtain below the water curtain plate 30, and the water in the water storage tank 50 is sucked into the water pump 60 after flowing into the water collecting groove 70, thereby forming a complete water circulation system.

[0047] The above merely aims to illustrate the technical solutions of the present application and is not intended to limit the present application. Other modifications or equivalent replacements made by those skilled in the art to the technical solutions of the present application should be encompassed in the scope of the claims of the present application, as long as they do not depart from the spirit and scope of the present application.

Claims

1. A water curtain paint booth comprising a water curtain booth body (100) including a paint spray chamber (10), a paint mist treatment chamber (20) in communication with the paint spray chamber (10), a water curtain panel (30), and a fan assembly, characterized in that, The paint mist treatment chamber (20) comprises a first chamber (21) and a second chamber (22) in communication with each other, the first chamber (21) is located below the second chamber (22), and the internal space of the first chamber (21) is arranged in a gradually decreasing manner from top to bottom.

2. A down-draft paint booth according to claim 1, wherein The water curtain plate (30) separates the interior of the water curtain cabinet body (100) into the paint spraying chamber (10) and the paint mist treatment chamber (20), the rear end plate of the water curtain cabinet body (100) comprises an inclined lower plate (101) and an upper plate (102) vertically arranged on the lower plate (101), the lower plate (101), the bottom plate of the water curtain cabinet body (100) and the water curtain plate (30) cooperate to form the first chamber (21) of the paint mist treatment chamber (20), the upper plate (102), the upper plate of the water curtain cabinet body (100) and the water curtain plate (30) cooperate to form the second chamber (22) of the paint mist treatment chamber (20), the communication port of the first chamber (21) and the paint spraying chamber (10) is located at the bottom of the first chamber (21), and the top of the second chamber (22) is provided with a paint mist outlet (221) in communication with the fan assembly.

3. A down-draft paint booth according to claim 2, wherein, At least one spoiler (31) is arranged on the lower plate (101) and the water curtain plate (30), the spoilers (31) arranged on the lower plate (101) and the water curtain plate (30) are located in the first chamber (21) and are arranged in a staggered manner, and the spoilers (31) are arranged in an inclined downward manner.

4. A down-draft paint booth according to claim 2 wherein, At least two groups of spray assemblies (40) are arranged in the first chamber (21), and the at least two groups of spray assemblies (40) correspond to the positions below the spoilers (31) arranged on the lower plate (101) and the water curtain plate (30) respectively.

5. A down-draft paint booth according to claim 4, wherein, The spray assembly (40) comprises a water pipe (41) fixedly arranged below the spoiler (31) and a plurality of spray heads (42) uniformly distributed on the water pipe (41), and the water spraying angles of the plurality of spray heads (42) correspond to the inclined angles of the spoilers (31).

6. A down-draft paint booth according to claim 2 wherein, A plurality of maintenance openings (103) are arranged on the lower plate (101), a maintenance door (104) for closing the maintenance openings (103) is detachably connected to the lower plate (101), and an observation window (105) for observing the internal conditions of the paint mist treatment chamber (20) is arranged on the maintenance door (104).

7. A down-draft paint booth according to claim 1 wherein, A sawtooth plate (32) is arranged on the bottom side of the water curtain plate (30), a water curtain water receiving plate (212) is arranged at the bottom of the side of the first chamber (21) of the paint mist treatment chamber (20) facing the paint spraying chamber (10), and the water curtain water receiving plate (212) and the sawtooth plate (32) cooperate to form a paint mist inlet (211), so that the paint mist in the paint spraying chamber (10) enters the first chamber (21) through the paint mist inlet (211).

8. A down-draft paint booth according to claim 7, wherein, The water curtain plate (30) is provided with a water overflow groove (33) at the top end of the side facing the paint spraying chamber (10), and a water storage pool (50) is arranged below the water curtain plate (30), the water storage pool (50) is communicated with the paint spraying chamber (10) and the paint mist treatment chamber (20), a water pump (60) is arranged on the water curtain cabinet body (100), the water pump (60) is connected to the water overflow groove (33) and the water storage pool (50) through a pipeline, so that the water in the water storage pool (50) is continuously conveyed into the water overflow groove (33), and when the water in the water overflow groove (33) overflows, a water curtain is formed at the paint mist inlet (211).

9. A down-draft paint booth according to claim 8, wherein, The water curtain cabinet body (100) is provided with a water collecting groove (70) communicated with the water storage pool (50), the water collecting groove (70) is located on the side of the paint mist treatment chamber (20) away from the paint spraying chamber (10), and the water inlet of the water pump (60) extends into the water collecting groove (70).

10. A down-draft paint booth according to claim 9, wherein, The water pump (60) is arranged at one end of the water collecting groove (70), and a plurality of filter screens (701) are arranged between the communication opening of the water collecting groove (70) and the water inlet of the water pump (60).

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