Protective cover for laser engraving machine

Abstract

The utility model relates to the technical field of safety protection devices of laser processing equipment, in particular to a protective cover for a laser engraving machine. The protective cover comprises a cover body which is surrounded and fixed by a plurality of side plates, and one side plate of the cover body is provided with a smoke outlet hole; the bottom plate is connected to one side face of the cover body, the bottom plate and the side plates form a containing space, the bottom plate comprises a first hinge plate, a second hinge plate and a movable connecting piece, the first hinge plate is fixed to the side plates, and the second hinge plate is movably connected with the first hinge plate through the movable connecting piece and used for being arranged on the side plates in a covering mode; the smoke exhaust assembly comprises a smoke exhaust piece and a smoke outlet piece, the smoke exhaust piece is located in the containing space and arranged on one side plate of the cover body relative to the smoke outlet hole, and the smoke outlet piece is located on the outer side of the same side plate of the cover body and arranged relative to the smoke outlet hole and the smoke exhaust piece; and the sensing piece is located in the containing space, fixed to the side plate and used for sensing opening and closing of the second hinge plate. The operation convenience can be met, and the good protection effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety protection devices for laser processing equipment, and particularly relates to a protective cover for a laser engraving machine. BACKGROUND

[0002] As a high-precision processing equipment, the laser engraving machine is widely used in the fine processing of various materials such as wood, plastic, metal, etc. It realizes precise etching or cutting on the surface of the material through focusing high-energy-density laser beams. With the improvement of industrial automation level and the progress of technology, the laser engraving machine is more and more widely used in manufacturing industry, which not only improves the production efficiency, but also improves the quality and consistency of products.

[0003] In order to ensure the safety of the operator and reduce the pollution in the working environment, the existing laser engraving machine is usually equipped with a protective device. These protective devices mainly include a closed cover structure for isolating the laser source and the surrounding environment to prevent laser radiation from causing harm to the human body. In addition, some protective devices are also equipped with an exhaust system to remove harmful gases and particulate matter generated during the engraving process, keeping the air clean. Common solutions include using a fixed transparent cover to cover the entire work area, or using a semi-open shielding plate with a manually opened and closed mode; at the same time, using a fan or other air suction device to exhaust the exhaust gas to the external environment.

[0004] However, the above methods have certain limitations. For example, the fixed cover will limit the operator's field of vision and is not conducive to quick replacement of workpieces; while the semi-open design is convenient for operation, but lacks in safety and sealing performance. Especially for small workpieces that need to be frequently adjusted in position, how to ensure work efficiency while effectively controlling pollutant emissions has become a problem to be solved. Therefore, it is particularly important to develop a new protective cover that can meet the convenience of operation and has good protective effect. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to overcome the above technical problems, and provide a protective cover for a laser engraving machine, which not only meets the convenience of operation, but also has good protective effect.

[0006] The present application provides a protective cover for a laser engraving machine, which adopts the following scheme:

[0007] The utility model provides a protective cover for laser engraving machine, it includes: the cover body is surrounded fixedly by a plurality of side plates, and one side plate of cover body is provided with the smoke hole, the bottom plate is connected in one side of cover body to form the containing space with a plurality of side plates, the bottom plate includes first hinge plate, second hinge plate and movable connecting piece, first hinge plate is fixed on the side plate, second hinge plate is movably connected first hinge plate through movable connecting piece and is used to cover the side plate, the smoke exhaust component includes smoke exhaust piece and smoke outlet piece, smoke exhaust piece is located in the containing space and is arranged on one side plate of cover body relative to the smoke hole, and the smoke outlet piece is located outside one side plate of cover body and is arranged relative to the smoke hole and smoke exhaust piece, the sensing piece is located in the containing space and is fixed on the side plate and is used for sensing the opening and closing of second hinge plate.

[0008] Through the above technical scheme, the cover body is surrounded and fixed by a plurality of side plates, and the smoke hole is arranged on one side plate, which can ensure the smoothness of the smoke exhaust path. The design of the bottom plate includes a first hinge plate, a second hinge plate and a movable connecting piece, so that the bottom plate can be flexibly opened and closed, facilitating the entry and exit of materials, while ensuring the sealing performance. The smoke exhaust component includes a smoke exhaust piece and a smoke outlet piece, which are arranged opposite to each other inside and outside one side plate of the cover body, ensuring effective exhaust function. The sensing piece is installed in the containing space and is used for detecting the opening and closing state of the second hinge plate, improving the automation degree and safety of the system.

[0009] Optionally, the smoke outlet piece is provided with a fixed edge abutting against the side plate at one end, and a first fixing hole is arranged on the fixed edge; wherein a second fixing hole is arranged on the side plate, and a third fixing hole is arranged on the smoke exhaust piece, and the smoke exhaust piece and the smoke outlet piece are used to be fixed on the same side edge of the cover body in sequence through the first fixing piece penetrating the first fixing hole, the second fixing hole and the third fixing hole.

[0010] Through the above technical scheme, the smoke outlet piece can be stably installed on the side plate of the cover body, ensuring the overall stability and reliability of the smoke exhaust component. Specifically, the design of the fixed edge increases the contact area between the smoke outlet piece and the side plate, improving the stability of the fixation; and the cooperation of the first fixing hole, the second fixing hole and the third fixing hole enables the smoke exhaust piece and the smoke outlet piece to be firmly fixed together, avoiding loosening or falling off due to vibration or external force, thereby ensuring the effective operation of the smoke exhaust function.

[0011] Optionally, it further includes: a fixed connecting plate located in the containing space and fixed on two side plates.

[0012] By adopting the technical scheme, the fixed connecting plate can enhance the overall structural stability of the cover body, prevent the side plate from being deformed or loosened due to external impact or vibration during use, and thus improve the safety and reliability of the protective cover.

[0013] Optionally, the device further comprises a displacement piece arranged on a side plate of the cover body, and a through hole is arranged on the cover body corresponding to the displacement piece.

[0014] By adopting the technical scheme, the displacement piece is arranged on a side plate of the cover body, and a through hole is arranged on the cover body corresponding to the displacement piece, which can effectively prevent high-temperature or high-pressure gas generated during laser engraving from damaging the cover body, thereby improving the safety and stability of the device. Meanwhile, the presence of the displacement piece makes the operation more convenient, and does not affect the normal work of the laser head due to the complete sealing of the cover body.

[0015] Optionally, the displacement piece is provided with a clamping groove for sleeving the edge of the through hole, and the displacement piece is made of soft material.

[0016] By adopting the technical scheme, the clamping groove on the displacement piece can be effectively sleeved on the edge of the through hole, ensuring the close connection between the displacement piece and the cover body. Meanwhile, since the displacement piece is made of soft material, it can better adapt to through holes of different shapes and sizes, improving the convenience and sealing performance of installation, effectively preventing dust and other impurities from entering the accommodation space, and protecting the safe operation of the internal equipment.

[0017] Optionally, the device further comprises a second fixing piece arranged on a plurality of side plates of the cover body and located in the accommodation space.

[0018] By adopting the technical scheme, the second fixing piece is arranged on a plurality of side plates of the cover body, which provides a convenient condition for the installation of other components, thereby effectively improving the stability of the internal structure of the protective cover.

[0019] Optionally, the device further comprises a push-pull piece arranged on an end of the second hinge plate away from the smoke outlet piece, and a recess is arranged on the push-pull piece.

[0020] By adopting the technical scheme, the push-pull piece is arranged on an end of the second hinge plate away from the smoke outlet piece, which enables the operator to conveniently open the protective cover, thereby improving the convenience of use. Meanwhile, the design of the recess increases the contact area of the hand, further improving the comfort and stability of the operation.

[0021] Optionally, the sensing piece is a proximity switch.

[0022] By adopting the above technical solution, using a proximity switch as a sensing element can accurately detect the opening and closing state of the second hinge plate, improving the system's response speed and reliability. When the second hinge plate opens or closes, the proximity switch can quickly sense the change and promptly send a signal to the control system, ensuring the safe operation of the laser engraving machine.

[0023] Optionally, the second hinge plate is provided with a magnet for adsorbing the side plate.

[0024] By adopting the above technical solution, the magnetic component allows the second hinge plate to be firmly attached to the side plate, thereby improving the sealing performance of the protective cover and effectively preventing fumes generated during laser engraving from leaking into the external environment. At the same time, this design also allows users to quickly open or close the second hinge plate, enhancing operational convenience and user experience.

[0025] Optionally, the cover is made of a light-transmitting material; the bend of the second hinge plate is arc-shaped.

[0026] By adopting the above technical solution, the use of light-transmitting materials for the enclosure ensures that operators can observe the laser engraving process without opening the protective cover, improving both convenience and safety. Simultaneously, the curved design of the second hinge avoids the risk of injury from sharp edges, further enhancing the equipment's safety performance.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting a movable first hinge plate and a second hinge plate, the flexible opening and closing function of the base plate is realized, which improves the convenience and safety of operation;

[0029] 2. The design of the smoke extraction system can efficiently remove the smoke and harmful gases generated during laser engraving, improving the working environment and ensuring the health of operators;

[0030] 3. The sensor can monitor the opening and closing status of the second hinge plate in real time, which enhances the safety of the protective cover and avoids safety accidents caused by misoperation. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a protective cover for a laser engraving machine disclosed in an embodiment of this application;

[0032] Figure 2 for Figure 1 The diagram shows a three-dimensional structural schematic of a protective cover for a laser engraving machine from another angle.

[0033] Figure 3 for Figure 1Another perspective view of a protective cover for a laser engraving machine is shown.

[0034] Figure 4 For Figure 1 An exploded view of a protective cover for a laser engraving machine is shown.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 10, cover body; 11, smoke outlet hole; 12, second fixing hole; 13, through hole; 20, bottom plate; 201, accommodating space; 21, first hinge plate; 22, second hinge plate; 23, movable connecting piece; 30, smoke exhaust assembly; 31, smoke exhaust piece; 311, third fixing hole; 32, smoke exhaust piece; 321, fixed edge; 3211, first fixing hole; 40, sensing piece; 50, fixed connecting plate; 60, accommodating piece; 61, clamping groove; 70, second fixing piece; 80, push-pull piece; 81, groove. DETAILED DESCRIPTION

[0037] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and the appended claims of the application, the singular forms "a," "an" and "the" are intended to include both singular and plural forms, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used in the application, encompasses any and all possible combinations of one or more of the associated listed items.

[0038] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description and should not be understood as suggesting or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise stated.

[0039] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0040] Referring to Figure 1 and Figure 2 A protective cover for a laser engraving machine disclosed in the embodiments of the present application comprises a cover body 10, a bottom plate 20, a smoke exhaust assembly 30 and a sensing piece 40, the cover body 10 is connected and fixed with the bottom plate 20, and forms an accommodating space 201 for accommodating the laser engraving machine, the smoke exhaust assembly 30 is arranged on one side edge of the cover body 10 and penetrates the accommodating space 201, for exhausting smoke and harmful gas generated during the laser engraving process, and the sensing piece 40 is used for sensing the opening and closing state of the bottom plate 20, to enhance the safety of the protective cover.

[0041] Wherein, the cover body 10 is surrounded and fixed by a plurality of side plates, as shown Figure 1 The side plates are light-transmitting materials, that is, the cover body 10 is a light-transmitting material, so that the operator can observe the laser engraving process without opening the cover body 10, improving the convenience and safety of work. The side plates are fixed together by threaded parts. In this embodiment, it also includes a fixed connecting plate 50, which is L-shaped in appearance, and the two sides are attached to the side plates and located in the accommodation space 201. In this way, the threaded parts are sequentially fixed through the fixed connecting plate 50 and the side plates.

[0042] The bottom plate 20 includes a first hinge plate 21, a second hinge plate 22, and a movable connecting piece 23. The first hinge plate 21 is fixed on the side plate, and the second hinge plate 22 is connected to the first hinge plate 21 through the movable connecting piece 23. The movable connecting piece 23, that is, the hinge, allows the second hinge plate 22 to be easily opened and closed relative to the cover body 10.

[0043] In order to improve the sealing performance of the protective cover, a magnet (not shown in the figure) is provided on the second hinge plate 22 for adsorbing the side plate. Correspondingly, the side plate can be made of metal material, thereby effectively preventing the smoke generated during laser engraving from leaking to the external environment. At the same time, this design also facilitates the user to quickly open or close the second hinge plate 22, improving the operation convenience and user experience. In this embodiment, the second hinge plate 22 is designed to be bent to better cover and fit the side plate. When the second hinge plate 22 is opened, it will present a larger space for the operator to operate. In addition, the bent part of the second hinge plate 22 is arc-shaped to avoid the risk of injury caused by sharp edges, further improving the safety performance of the equipment.

[0044] Referring to Figure 2 and Figure 3 , the smoke exhaust assembly 30 includes a smoke exhaust part 31 and a smoke outlet part 32. The smoke exhaust part 31 is located in the accommodation space 201 and is a small fan or air pump. Correspondingly, a smoke outlet hole 11 is provided on one side plate of the cover body 10. The smoke exhaust part 31 is arranged on one side plate of the cover body 10 relative to the smoke outlet hole 11. The smoke outlet part 32 is a smoke passage that penetrates the smoke outlet hole 11 and is located on the outside of the same side plate of the cover body 10 and relative to the smoke outlet hole 11 and the smoke exhaust part 31. In this way, the harmful gas in the accommodation space 201 is exhausted through the smoke outlet hole 11, the smoke outlet part 32 by the smoke exhaust part 31.

[0045] Wherein, one end of the smoke outlet part 32 is provided with a fixed edge 321, and the fixed edge 321 is provided with a first fixed hole 3211. The side plate is provided with a second fixed hole 12 (see Figure 4), the third fixing hole 311 is arranged on the smoke exhaust member 31, and the smoke exhaust member 31 and the smoke outlet member 32 are fixed on the same side of the cover body 10 by the first fixing member such as a screw member and in sequence through the three fixing holes by a nut. In this way, the stability of the smoke exhaust assembly 30 is ensured, and the disassembly and maintenance are facilitated.

[0046] Referring to Figure 2 , the sensing member 40 is located in the accommodation space 201 and is fixed on the side plate for sensing the opening and closing state of the second hinge plate 22. The sensing member 40 is a proximity switch that can monitor the state of the second hinge plate 22 in real time. The proximity switch is installed on the edge of the side plate close to the second hinge plate 22, and when the second hinge plate 22 is closed, the proximity switch detects a signal and sends it to the control system, thereby triggering corresponding actions such as stopping laser engraving and issuing an alarm. Of course, in the embodiment, the type of the sensing member 40 is not limited, and in another embodiment, the sensing member 40 can also be a photoelectric sensor or other types of sensors as long as the same technical effect can be achieved.

[0047] Referring to Figure 2 and Figure 4 , in the embodiment, the accommodation member 60 is arranged on one side plate of the cover body 10, and a through hole 13 is arranged on the corresponding side plate of the cover body 10. This makes it convenient to operate through the through hole 13 when installing or maintaining the internal parts of the laser engraving machine, thereby improving the maintainability and convenience of the equipment. At the same time, this design can also avoid structural damage caused by frequent disassembly and assembly of the protective cover, thereby prolonging the service life of the protective cover.

[0048] The accommodation member 60 is provided with a clamping groove 61 for sleeving the edge of the through hole 13, thereby ensuring the close connection between the accommodation member 60 and the cover body 10. At the same time, since the accommodation member 60 is made of soft material, it can better adapt to through holes 13 of different shapes and sizes, thereby improving the convenience and sealing performance of installation and effectively preventing dust and other impurities from entering the accommodation space 201 to protect the safe operation of the internal equipment.

[0049] Referring to Figure 3 and Figure 4 , in the embodiment, the second fixing member 70 is arranged on the plurality of side plates of the cover body 10 and located in the accommodation space 201, thereby providing a convenient condition for the installation of other parts to effectively improve the stability of the internal structure of the protective cover. The second fixing member 70 is made of metal, for example, the structure shown in the figure.

[0050] Referring to Figure 4In the embodiment, the push-pull piece 80 is arranged on the end of the second hinge plate 22 away from the smoke outlet piece 32, and the recess 81 is arranged on the push-pull piece 80. In this way, the operator can conveniently open the protective cover, and the convenience of use is improved. Meanwhile, the design of the recess 81 increases the contact area of the hand, and further improves the comfort and stability of the operation.

[0051] In summary, the protective cover for the laser engraving machine disclosed in the embodiments of the present application has the flexible opening and closing function of the bottom plate 20 by arranging the first hinge plate 21 and the second hinge plate 22 in a movable manner, and the operation convenience and safety are improved. The design of the smoke exhaust assembly 30 can efficiently exhaust the smoke and harmful gas generated in the laser engraving process, improve the working environment, and ensure the health of the operator. The sensing piece 40 can monitor the opening and closing state of the second hinge plate 22 in real time, and the safety of the protective cover is enhanced, so that the safety accidents caused by misoperation are avoided.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A protective cover for a laser engraver, characterized in that, The utility model relates to a smoke exhaust device, including: Cover (10) is surrounded fixedly by a plurality of side plates, and one side plate of cover (10) is provided with smoke outlet hole (11); Bottom plate (20) is connected on one side of cover (10) to form containing space (201) with a plurality of side plates, and bottom plate (20) includes first hinge plate (21), second hinge plate (22) and movable connecting piece (23), first hinge plate (21) is fixed on the side plate, second hinge plate (22) is movably connected with first hinge plate (21) through movable connecting piece (23), and is used for covering the side plate; Smoke exhaust assembly (30) includes smoke exhaust piece (31) and smoke outlet piece (32), smoke exhaust piece (31) is located in containing space (201), and is arranged on one side plate of cover (10) relative to smoke outlet hole (11), and smoke outlet piece (32) is located on the outside of the same side plate of cover (10) and is arranged relative to smoke outlet hole (11) and smoke exhaust piece (31); Sensing piece (40) is located in containing space (201) and is fixed on the side plate and is used for sensing the opening and closing of second hinge plate (22).

2. A protective cover for a laser-engraving machine according to claim 1, characterized in that, One end of smoke outlet piece (32) is provided with fixed edge (321) abutting against the side plate, and first fixed hole (3211) is arranged on fixed edge (321); Wherein, second fixed hole (12) is arranged on the side plate, third fixed hole (311) is arranged on smoke exhaust piece (31), and smoke exhaust piece (31) and smoke outlet piece (32) are used for being fixed on the same side of cover (10) through first fixed piece in sequence penetrating first fixed hole (3211), second fixed hole (12) and third fixed hole (311).

3. The protective cover for a laser-engraving machine of claim 1, wherein, Further including: Fixed connecting plate (50) is located in containing space (201) and is fixed on two side plates.

4. The protective cover for a laser-engraving machine of claim 1, wherein, Further including: Make room piece (60) is arranged on one side plate of cover (10), and corresponding through hole (13) is arranged on cover (10).

5. A protective cover for a laser-engraving machine according to claim 4, characterized in that, Clamping groove (61) is arranged on make room piece (60) and is used for sleeving the edge of through hole (13), and make room piece (60) is soft material.

6. The protective cover for a laser-engraving machine of claim 1, wherein, Further including: Second fixed piece (70) is arranged on a plurality of side plates of cover (10) and is located in containing space (201).

7. The protective cover for a laser-engraving machine of claim 1, wherein, Further including: Push-pull piece (80) is arranged on one end of second hinge plate (22) away from smoke outlet piece (32), and recess (81) is arranged on push-pull piece (80).

8. The protective cover for a laser-engraving machine of claim 1, wherein, Sensing piece (40) is proximity switch.

9. The protective cover for a laser-engraving machine of claim 1, wherein, Magnet piece is arranged on second hinge plate (22) and is used for adsorbing the side plate.

10. The protective cover for a laser-engraving machine of claim 1, wherein, Cover (10) is light-transmitting material; The bending part of second hinge plate (22) is arc-shaped.

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