A protective device and a roller coating machine having the same.

Abstract

This invention relates to the field of sheet metal processing technology, specifically to a protective device and a roller coating machine having the same. The protective device includes: a cover having an opening adapted to be assembled with a machine body to form a sealing structure; at least one suction port is provided on the top wall of the cover opposite to the opening; and a suction structure disposed inside the top wall of the cover and opposite to the machine body, having multiple openings communicating with the suction ports through the inner cavity of the suction structure. This invention provides a protective device with good protective effect and a roller coating machine having the same.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, specifically to a protective device and a roller coating machine having the same. Background Technology

[0002] Roller coating machines are mainly used for painting detachable furniture, cabinet doors, flat doors, and metal sheets. Existing roller coating machines emit harmful gases during the paint and material feeding process, posing a health risk to operators. While some employees wear masks, many remove them in hot weather, allowing the harmful gases to still affect their health. To address this, existing technology provides a method that uses a fan to blow air directly onto the ground, creating an air curtain to expel the harmful gases emitted by the roller coating machine through pipes within the air curtain. However, the air curtain's sealing is still limited, and harmful gases can escape through gaps, resulting in less than ideal protection. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art where the protective effect of the roller coating machine is not ideal and the emitted harmful gases still endanger the health of employees, thereby providing a protective device with good protective effect and a roller coating machine having the same.

[0004] To address the aforementioned technical problems, the present invention provides a protective device, comprising:

[0005] The cover has an opening adapted to be assembled with the body to form a sealing structure, and at least one suction port is provided on the top wall of the cover opposite to the opening.

[0006] The suction structure is located on the inner side of the top wall of the cover and is positioned opposite to the body. It has multiple openings, which are connected to the suction port through the inner cavity of the suction structure.

[0007] Optionally, the cover is made of a transparent material.

[0008] Optionally, the enclosure is further provided with at least one pair of mounting structures, the at least one pair of mounting structures being spaced apart along the length of the enclosure, the mounting structure having a first connector fixed to the top wall of the enclosure and a second connector detachably connected to the body.

[0009] Optionally, the second connector is a horizontally arranged U-shaped plate, and the support arm of the U-shaped plate is provided with mounting holes that allow fasteners to pass through.

[0010] Optionally, the suction structure is an inverted trapezoid, with the lower base of the inverted trapezoid fixed to the top wall of the cover, and the opening is located on the two sides of the inverted trapezoid.

[0011] Optionally, the first connector is an inverted trapezoid, and the two waists of the first connector are fitted to fit against the waist of the suction structure.

[0012] Optionally, the mounting structure further includes a third connector for connecting the first connector and the second connector, the third connector being disposed perpendicular to the second connector.

[0013] Optionally, the enclosure may also include a lighting structure.

[0014] Optionally, the outer side of the top wall of the cover is also provided with multiple lifting lugs.

[0015] A roller coating machine is also provided, including the aforementioned protective device, wherein the suction port is connected to a ventilation pipe.

[0016] The technical solution of this invention has the following advantages:

[0017] 1. The protective device provided by this invention, when the machine is in operation, allows harmful gases emitted from the plates it supports to pass through the openings and inner cavity of the suction structure sequentially, and then be discharged through the suction port on the top wall of the cover. Throughout the entire processing, because the cover and the machine form a relatively closed sealed structure, the harmful gases will only flow along a specific trajectory inside the cover and will not overflow from the sides, effectively ensuring the health of employees and improving the protective effect.

[0018] 2. The protective device provided by the present invention has a transparent cover, which makes it convenient for employees to observe the working status of the machine from the outside and to make real-time control and adjustment.

[0019] 3. The protective device provided by the present invention has a housing structure that ensures a reliable connection between the housing and the machine body, and reduces the space occupied.

[0020] 4. The protective device provided by the present invention has an inverted trapezoidal suction structure that reduces the space occupied at the bottom of the cover, making the internal space layout of the cover more reasonable; and harmful gases escape through the openings on both sides of the inverted trapezoid, making exhaust more timely. At the same time, it avoids the possibility that the high suction pressure may affect the painting effect on the surface of the plate on the machine body when the openings are set directly opposite the machine body. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1A schematic diagram of the protective device provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the protective device provided by the present invention from another angle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cover; 2. Suction structure; 3. Suction port; 4. Opening; 5. First connector; 6. Second connector; 7. Third connector; 8. Mounting hole; 9. Lifting lug. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figure 1 and 2 One specific embodiment of the protective device is used for protective treatment when painting the surface of a board, including a cover 1 with an opening and a suction structure 2 disposed on the inner side of the top wall of the cover 1.

[0029] The cover 1 is a rectangular prism made of transparent material, for example, the peripheral walls are made of transparent glass, and the top wall is a non-transparent metal plate. Its size is adapted to the machined surface of the machine body so as to completely cover the machined surface of the machine body. The opening is arranged opposite to the top wall, which is suitable for assembly with the machine body to form a sealed structure. The top wall of the cover 1 opposite to the opening is provided with two suction ports 3, which are used to connect to the ventilation pipe to provide suction force.

[0030] The suction structure 2 is positioned opposite the body and has multiple openings 4 arranged side-by-side at intervals, forming an elongated shape. Each opening 4 communicates with the suction port 3 through the inner cavity of the suction structure 2. Specifically, as shown... Figure 2 As shown, the suction structure 2 is an inverted trapezoid, located in the center of the top wall and extending along its length to be almost flush with the top wall, so as to cover the processing surface of the machine body to the greatest extent. The bottom of the inverted trapezoid is fixed to the top wall of the cover 1. The opening 4 is located on the two sides of the inverted trapezoid, and the interior of the inverted trapezoid is a cavity. The suction structure 2 can be integrally formed from a stainless steel plate.

[0031] To facilitate the installation of the cover 1 and the machine body, a pair of mounting structures are provided inside the cover 1. These mounting structures are spaced apart along the length of the cover 1 and are located near two opposite edges of the top wall. Each mounting structure has a first connecting member 5 fixed to the top wall of the cover 1, a second connecting member 6 detachably connected to the machine body, and a third connecting member 7 for connecting the first connecting member 5 and the second connecting member 6. The first connecting member 5 is an inverted trapezoid, and its two sides fit snugly against the sides of the suction structure 2. It can be fixed by welding, gluing, or screw fastening. The second connecting member 6 is a horizontally arranged U-shaped plate with its opening facing outwards. The openings of the two U-shaped plates are spaced far apart. The support arms of the U-shaped plate have mounting holes 8 that allow fasteners to pass through. Corresponding mounting holes are also provided on the machine body. Screws, acting as fasteners, pass through the corresponding mounting holes in sequence, thereby fixing the cover 1 to the machine body. The third connector 7 is perpendicular to the second connector 6, and its length is preferably such that the second connector 6 is just flush with and fixed to the working surface of the machine body. The first connector 5, the third connector 7, and the second connector 6 are integrally formed, or connected by welding, gluing, or screw fastening.

[0032] To facilitate observation of the working status of the machine inside the enclosure 1, a lighting structure is also provided inside the enclosure 1. Specifically, the lighting structure consists of lamps arranged on the top and side walls of the enclosure 1.

[0033] To facilitate the assembly and disassembly of the cover 1, a plurality of lifting lugs 9 are provided on the outer side of the top wall of the cover, and the plurality of lifting lugs 9 are equally spaced along the outer periphery of the top wall.

[0034] A roller coating machine is also provided, including the aforementioned protective device.

[0035] As an alternative implementation, the cover 1 can also be made of a non-transparent material, with a transparent observation window opened on the side wall of the cover 1.

[0036] As an alternative implementation, multiple openings 4 can also be arranged side by side on the upper bottom of the suction structure 2 to further improve the suction efficiency.

[0037] As an alternative implementation, the mounting structure can be installed on the outer wall of the cover 1.

[0038] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A protective device, characterized in that, include: The cover (1) has an opening that is adapted to be assembled with the body and form a sealing structure. At least one suction port (3) is provided on the top wall of the cover (1) opposite to the opening. The suction structure (2) is located on the inner side of the top wall of the cover (1) and is positioned opposite to the body. It has multiple openings (4), which are connected to the suction port (3) through the inner cavity of the suction structure (2). The suction structure (2) is an inverted trapezoid, with the bottom of the inverted trapezoid fixed to the top wall of the cover (1). The openings (4) are located on the two sides of the inverted trapezoid. The cover (1) is also provided with at least one pair of mounting structures. The at least one pair of mounting structures are spaced apart along the length of the cover (1). The mounting structure has a first connector (5) fixed to the top wall of the cover (1) and a second connector (6) detachably connected to the body. The second connector (6) is a horizontally arranged U-shaped plate. The support arm of the U-shaped plate is provided with mounting holes (8) that allow fasteners to pass through. The first connector (5) is an inverted trapezoid, and the two waists of the first connector (5) are fitted to the waist of the suction structure (2). The mounting structure also includes a third connector (7) for connecting the first connector (5) and the second connector (6). The third connector (7) is arranged perpendicular to the second connector (6).

2. The protective device according to claim 1, characterized in that, The cover (1) is made of transparent material.

3. The protective device according to claim 1, characterized in that, The enclosure (1) is also equipped with a lighting structure.

4. The protective device according to any one of claims 1-3, characterized in that, The outer side of the top wall of the cover (1) is also provided with multiple hanging lugs (9).

5. A roller coating machine, characterized in that, The protective device includes any one of claims 1-4, wherein the suction port (3) is connected to a ventilation pipe.

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