Electrostatic powder spraying room with anti-overflow and self-cleaning functions

Abstract

The utility model discloses an electrostatic powder spraying room with anti-overflow and self-cleaning functions, which relates to the technical field of electrostatic powder spraying equipment, and adopts the technical scheme that the electrostatic powder spraying room comprises a powder spraying room, and a powder spraying mechanism and a conveying roller which are arranged in the powder spraying room; a powder spraying mechanism is arranged in the powder spraying room and comprises a supporting bracket, a reciprocating machine and a sprayer. The electrostatic powder spraying room has the advantages that the electrostatic powder spraying room with the self-overflow-preventing and self-cleaning functions is provided, through multiple measures of a closed structure, a powder recycling system, an accurate spraying mechanism, illumination and the like, the recycling rate of powder coating is effectively increased, the dust-free working environment is guaranteed, and the service life of the powder spraying room is prolonged. Atomized powder is effectively prevented from overflowing, the recycling rate of powder coating is increased, the clean and dust-free working environment on site is guaranteed, the product quality is improved, and the problems that powder overflows during electrostatic powder spraying in a powder spraying room, and the powder spraying room is polluted by external impurities and dust can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic powder spraying equipment, in particular to an electrostatic powder spraying room with anti-overflow and self-cleaning functions. Background Art

[0002] At present, in order to reduce the pollution of coating to the environment, electrostatic powder spraying is used to coat the surface of metal sheets in the market. The remaining powder in the spraying process can be absorbed and processed by a recovery device for reuse. In addition to a part of the powder sprayed by the sprayer being adsorbed on the surface of the metal substrate, the rest of the powder settles naturally.

[0003] On the electrostatic powder spraying production line, in order to ensure the on-site working environment, a powder spraying room is set up in the spraying area of ​​the electrostatic powder spraying production line. The ceiling of the powder spraying room is provided with a full-length opening for substrate transportation, so that the coated substrate can be transported through; the powder spraying room is provided with an inlet and an outlet at the position where the coated substrate enters and exits; one side wall or both sides of the powder spraying room are provided with openings that allow the sprayer to extend in and meet the movement of the spray guns of the sprayer during spraying. In addition, in order to facilitate observation of the sprayer spraying situation, a window will be opened on the side to set a transparent curtain. Therefore, in order to prevent the powder from overflowing from the opening, the bottom of the powder spraying room is connected to the powder recovery system air duct to form a negative pressure in the powder spraying room, and a cyclone recovery device is set at the end.

[0004] However, for the high-speed continuous spraying production of flat intermittent steel plates, aluminum plates, steel coils, and aluminum coils, the substrate runs at a high speed, and the amount of charged powder sprayed per unit time is relatively large. In order to ensure that the plate is fully covered with powder, the sprayer is generally arranged in multiple rows and columns along the width of the plate. Since most of the sprayers are basically perpendicular to the plate surface and coil surface, the compressed air sprayed carries the electrostatic powder and sprays vertically to the surface of the steel plate. At the same time, the openings on the side walls, the substrate inlet and outlet, and the windows will still have some powder overflow when the sprayer sprays a large amount of powder. This problem is particularly prominent in high-speed continuous spraying production; and if the negative pressure in the powder spraying room is too large, it is easy to inhale dust and impurities outside the powder spraying room, and if the negative pressure is too small or the positive pressure is too small, it is easy to cause powder overflow. Especially the sprayer close to the side observation window will be more likely to overflow from the gap of the transparent curtain because it is close to the window and far away from the negative pressure air duct. A thick layer of powder will accumulate around the powder spraying room for a long time. On the one hand, it will cause dust to the on-site working environment, and on the other hand, it will cause waste of powder coating. In addition, due to the overflow of powder during the powder spraying process, the environment inside and outside the powder spraying room is easily affected by dust, affecting the health of workers and production efficiency.

[0005] How to solve the above problems is the research topic of this program. Utility Model Content

[0006] In order to achieve the above-mentioned purpose of the utility model and to solve the above-mentioned technical problems, the utility model provides an electrostatic powder spray booth with anti-overflow and self-cleaning functions.

[0007] The technical solution is as follows: it comprises a powder spraying room, a powder spraying mechanism and a conveying roller arranged in the powder spraying room;

[0008] The powder spraying mechanism is arranged in the powder spraying room, and the powder spraying mechanism comprises a supporting bracket, a reciprocating machine and a sprayer, and the powder spraying mechanism is arranged in the upper part of the inner cavity of the powder spraying room.

[0009] The interior of the powder spraying room is arranged as a separate closed space.

[0010] An air outlet is arranged on the top of the powder spraying room, and the air outlet is connected to a powder cyclone recovery device to facilitate the cleaning and recovery of the powder.

[0011] The powder spraying room is erected above the conveying roller, and a conveying opening is opened at the bottom of the powder spraying room corresponding to the conveying direction of the conveying roller to facilitate the conveying of the plate.

[0012] The powder spraying room is surrounded by closed enclosure panels, and lighting lamps are arranged inside the roof of the powder spraying room. The lighting lamps are located at both ends of the supporting bracket.

[0013] The sprayer is fixedly arranged on the reciprocating machine, and the reciprocating machine is arranged on the supporting bracket, so as to facilitate the reciprocating spraying of the sprayer, and the top of the supporting bracket is fixedly connected to the roof plate of the powder spraying room.

[0014] Vertical connecting rods are respectively threadedly connected on both sides of the reciprocating machine, a cross rod is threadedly connected at the bottom of the vertical connecting rod, one end of the cross rod is threadedly connected to a fixing seat, and the sprayer is fixedly arranged on the fixing seat.

[0015] The nozzle of the sprayer is arranged toward the conveying roller.

[0016] The powder spraying mechanism is arranged at the upper part of the inner cavity of the powder spraying room. Such a layout can centralize the powder spraying operation, reduce the risk of powder spillage, and keep the interior of the spraying room clean through the self-cleaning function of the powder spraying mechanism.

[0017] The interior of the powder spraying room is set up as a separate closed space, which helps to control the diffusion of powder during the powder spraying process, prevent the powder from overflowing into the external environment, and also facilitates the recovery of the powder inside.

[0018] An air outlet is set on the top of the powder spraying room, which is connected to the powder cyclone recovery device. This design can effectively recycle the used powder, reduce material waste, and keep the interior of the spraying room clean.

[0019] A conveying port is opened at the bottom of the powder spraying room corresponding to the conveying direction of the conveying roller. This design allows the plates to enter and leave the powder spraying room smoothly, thus improving production efficiency.

[0020] The powder spraying room is surrounded by closed enclosures and the top plate is equipped with lighting. This design not only prevents powder from spilling out, but also provides good lighting conditions, making it easier for operators to observe and control the spraying process. The use of a closed enclosure structure and an embedded spraying mechanism can avoid opening holes around the powder spraying room to set up a sprayer reciprocating mechanism and an observation window, effectively preventing atomized powder from spilling out through the openings and observation window gaps, increasing the recycling rate of powder coatings, ensuring a dust-free working environment on site, and improving product quality.

[0021] The sprayer is fixed on the reciprocating machine, and the reciprocating machine is set on the supporting bracket. This design allows the sprayer to perform precise reciprocating spraying in the powder spraying room, improving the uniformity and efficiency of spraying.

[0022] The reciprocating machine is connected to vertical connecting rods and cross bars on both sides, and the sprayer is fixed on the fixed seat of the cross bar. This structural design provides stable support and flexible adjustment to meet the spraying needs of plates of different sizes.

[0023] The nozzle of the sprayer is set towards the conveying roller to ensure that the spraying powder acts directly on the surface of the plate, improving the accuracy and coverage of the spraying.

[0024] The beneficial effects of the technical solution provided by the embodiment of the utility model are as follows: the solution provides an electrostatic powder spraying room with self-overflow prevention and self-cleaning functions, which effectively improves the recovery rate of powder coatings through multiple measures such as a closed structure, a powder recovery system, a precise spraying mechanism and lighting, ensures a dust-free working environment, effectively prevents atomized powder from overflowing, improves the recovery rate of powder coatings, ensures a clean and dust-free working environment on site, improves product quality, and can solve the problem of powder overflow and external impurities and dust polluting the spraying room during electrostatic powder spraying in the spraying room. Its advantages are mainly reflected in the following aspects:

[0025] (1) Improve powder recovery efficiency: By setting up a closed baffle plate and a top air outlet connected to a powder cyclone recovery device, powder spillage can be effectively reduced and recovery efficiency can be improved;

[0026] (2) Improve the working environment: The interior of the powder spraying room is set as a separate closed space to reduce the impact of dust on the working environment;

[0027] (3) Reduce powder spillage: The design of the closed enclosure panels around the powder spraying room effectively prevents powder from spilling out of the openings;

[0028] (4) Self-cleaning function: The self-cleaning design of the powder spraying room reduces the powder accumulation over a long period of time, thus reducing maintenance costs and workload;

[0029] (5) Optimize the layout of the sprayer: The sprayer is fixed on the reciprocating machine, and the reciprocating machine is set on the support bracket. This design allows the sprayer to perform efficient and uniform reciprocating spraying in the powder spraying room. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0031] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0032] Figure 3 for Figure 2 A partial enlarged view of .

[0033] Among them, the figure markings are: 1, powder spraying room; 2, conveying roller; 3, conveying port; 4, supporting bracket; 5, reciprocating machine; 6, sprayer; 7, air outlet; 8, lighting lamp; 9, vertical connecting rod; 10, cross bar; 11, fixing seat. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the invention of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0038] Example 1

[0039] See also Figures 1 to 3 The utility model provides an electrostatic powder spraying room with anti-overflow and self-cleaning functions, comprising a powder spraying room 1, a powder spraying mechanism and a conveying roller 2 arranged in the powder spraying room 1;

[0040] A powder spraying mechanism is arranged in the powder spraying room 1 , and the powder spraying mechanism comprises a supporting bracket 4 , a reciprocating machine 5 and a sprayer 6 . The powder spraying mechanism is arranged at the upper part of the inner cavity of the powder spraying room 1 .

[0041] The interior of the powder spraying room 1 is arranged as a separate closed space.

[0042] An air outlet 7 is provided on the top of the powder spraying room 1, and the air outlet 7 is connected to a powder cyclone recovery device to facilitate the cleaning and recovery of the powder.

[0043] The powder spraying room 1 is erected above the conveying roller 2, and a conveying opening 3 is provided at the bottom of the powder spraying room 1 corresponding to the conveying direction of the conveying roller 2 for conveying the plate.

[0044] The powder spraying room 1 is surrounded by closed enclosure panels, and lighting lamps 8 are arranged inside the top plate of the powder spraying room 1 . The lighting lamps 8 are located at both ends of the support bracket 4 .

[0045] The sprayer 6 is fixedly arranged on the reciprocating machine 5 , and the reciprocating machine 5 is arranged on the supporting bracket 4 , so as to facilitate the reciprocating spraying of the sprayer. The top of the supporting bracket 4 is fixedly connected to the top plate of the powder spraying room 1 .

[0046] The nozzle of the sprayer 6 is disposed toward the conveying roller 2 .

[0047] The method of using the utility model is as follows:

[0048] Preparation stage:

[0049] Ensure that the interior of the powder spraying room 1 is clean and free of residual powder or other impurities.

[0050] Check the various components of the powder spraying mechanism, including the support bracket 4, the reciprocator 5, the sprayer 6, etc., to ensure that they are all in good working condition.

[0051] Start the conveying system:

[0052] The conveying roller 2 is started to convey the metal sheet or coil to be coated into the powder spraying room 1.

[0053] Adjust spraying parameters:

[0054] According to the type and requirements of the coating material, the spraying parameters of the sprayer 6 are adjusted, including the spraying speed, powder flow rate, etc.

[0055] Start the spraying mechanism:

[0056] The reciprocating machine 5 is started to make the sprayer 6 spray reciprocatingly along the width of the plate.

[0057] Controlled negative pressure system:

[0058] Adjust the negative pressure system in the powder spraying room 1 to ensure that the powder can be effectively adsorbed onto the substrate and prevent the powder from overflowing.

[0059] Powder recovery:

[0060] During the spraying process, the powder that is not adsorbed onto the substrate is sucked into the powder cyclone recovery device through the air outlet 7 at the top of the powder spraying room 1, so as to realize the recovery and reuse of the powder.

[0061] Finish spraying:

[0062] When the coating of the sheet or coil is completed, the conveying roller 2 and the spraying mechanism are closed to stop the spraying process.

[0063] Cleaning and Maintenance:

[0064] After spraying is completed, the interior of the powder spraying room 1 is cleaned, and the accumulated powder is removed by using the self-cleaning function to keep the powder spraying room clean and ready for the next spraying.

[0065] Shutdown the system:

[0066] Finally, turn off all power supplies and equipment to ensure the safety of the equipment in a non-working state.

[0067] Example 2

[0068] On the basis of Example 1, vertical connecting rods 9 are respectively threadedly connected on both sides of the reciprocating machine 5, a cross bar 10 is threadedly connected to the bottom of the vertical connecting rod 9, one end of the cross bar 10 is threadedly connected to a fixing seat 11, and the sprayer 6 is fixedly set on the fixing seat 11.

[0069] The reciprocating machine is connected to vertical connecting rods and cross bars on both sides, and the sprayer is fixed on the fixed seat of the cross bar. This structural design provides stable support and flexible adjustment to meet the spraying needs of plates of different sizes.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrostatic powder spray booth with anti-overflow and self-cleaning functions, characterized in that: It comprises a powder spraying room (1), a powder spraying mechanism and a conveying roller (2) arranged in the powder spraying room (1); The powder spraying mechanism is arranged in the powder spraying room (1), and comprises a support bracket (4), a reciprocating machine (5) and a sprayer (6). The powder spraying mechanism is arranged in the upper part of the inner cavity of the powder spraying room (1).

2. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 1, characterized in that: The interior of the powder spraying room (1) is arranged as a separate closed space.

3. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 1, characterized in that: The top of the powder spraying room (1) is provided with an air outlet (7), and the air outlet (7) is connected to a powder cyclone recovery device.

4. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 1, characterized in that: The powder spraying room (1) is erected above the conveying roller (2), and a conveying opening (3) is provided at the bottom of the powder spraying room (1) corresponding to the conveying direction of the conveying roller (2).

5. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 1, characterized in that: The powder spraying room (1) is provided with closed enclosure panels around its periphery, and lighting lamps (8) are provided inside the top plate of the powder spraying room (1), and the lighting lamps (8) are located at both ends of the support bracket (4).

6. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 5, characterized in that: The sprayer (6) is fixedly arranged on the reciprocating machine (5), the reciprocating machine (5) is arranged on the supporting bracket (4), and the top of the supporting bracket (4) is fixedly connected to the top plate of the powder spraying room (1).

7. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 6, characterized in that: The two sides of the reciprocating machine (5) are respectively threadedly connected with vertical connecting rods (9), the bottom of the vertical connecting rod (9) is threadedly connected with a cross rod (10), one end of the cross rod (10) is threadedly connected with a fixed seat (11), and the sprayer (6) is fixedly arranged on the fixed seat (11).

8. The electrostatic powder spray booth with anti-overflow and self-cleaning functions according to claim 7, characterized in that: The nozzle of the sprayer (6) is arranged toward the conveying roller (2).

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