Laser protective cover for laser engraving machine

Abstract

The utility model discloses a laser protective cover for a laser engraving machine, which comprises a protective cover module and a protective cover transmission module, the protective cover module comprises an upper cover plate, a lower bottom plate, a front side cover plate and a rear cover plate, an engraving area is formed among the upper cover plate, the lower bottom plate, the front side cover plate and the rear cover plate, a limiting chute is formed between the upper cover plate and the rear cover plate, and the protective cover transmission module is connected with the lower bottom plate. The protective cover transmission module is arranged on the inner side of the rear cover plate and is in transmission connection with the front side cover plate; the front side cover plate slides up and down or is fixed in the limiting sliding groove through the protective cover transmission module, and the protective cover transmission module is used for filtering dazzling laser in the laser engraving process to prevent eyes from being burnt. According to the laser engraving machine, the lifting type laser protective cover is adopted, so that the problem that eyes of a user are burnt by dazzling laser in the laser engraving process is effectively avoided, the laser protective cover runs stably and smoothly, the safety is high, the laser protective cover cannot rise or fall suddenly in the operation process, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving machines, in particular to a laser protective cover for a laser engraving machine. Background Art

[0002] In the prior art, engraving machines are widely used in the field of production and processing. From the processing principle, engraving is a combination of drilling and milling. Existing computer engraving machines are divided into two categories: laser engraving and mechanical engraving. Different types of engraving machines can be selected according to power requirements, so the application range of engraving machines is very wide. Existing laser engraving machines often consist of two parts: a support frame and an engraving module. However, such a structure has no protective cover on the outside. During the laser engraving process, it is easy to damage the user's eyes, which is poor in safety and low in practicality.

[0003] Regarding the problem in the related technology that the existing laser engraving machine lacks a protective cover and easily causes the user's eyes to be damaged by the laser, there is still a lack of a better technical solution. Utility Model Content

[0004] In view of this, it is necessary to provide a laser protective cover for a laser engraving machine, so as to at least solve the problem in the related art that the existing laser engraving machine lacks a protective cover and easily causes the user's eyes to be damaged by the laser.

[0005] The embodiment of the present application provides a laser protective cover for a laser engraving machine, which includes a protective cover module and a protective cover transmission module, the protective cover module includes an upper cover plate, a lower base plate, a front cover plate and a rear cover plate, an engraving area is formed between the upper cover plate, the lower base plate, the front cover plate and the rear cover plate, a limiting slide groove is formed between the upper cover plate and the rear cover plate, the protective cover transmission module is arranged on the inner side of the rear cover plate and is connected to the front cover plate in a transmission manner; wherein the front cover plate is slid up and down or fixed in the limiting slide groove by the protective cover transmission module, and the protective cover module is used to filter the glaring laser during the laser engraving process to avoid eye burns.

[0006] In one embodiment, both sides of the rear cover plate are provided with limit plates extending forward, the lower end of the upper cover plate is provided with an inner protective cover adapted to the limit plates, the gap between the inner side of the limit plates and the outer side of the inner protective cover forms the limit slide groove, and the inner side of the inner protective cover forms an engraving transmission area.

[0007] In one embodiment, the protective cover transmission module includes a fixed plate, a transmission slide rail, a transmission slider, a tension spring, a transmission roller and a limit device, the fixed plate is covered and fixed on the inner side of the rear cover plate, the transmission slide rail is installed on the outer side of the fixed plate, one side of the transmission slider is slidably arranged on the transmission slide rail, the other side of the transmission slider is fixedly connected to the front cover plate, the transmission roller is rotatably arranged on the transmission slide rail, one end of the tension spring is fixedly connected to the fixed plate, the other end of the tension spring bypasses the transmission roller and is fixedly connected to the front cover plate, and the limit device is arranged on the upper and lower sides of the transmission slide rail; wherein, when the front cover is opened, The transmission slide plate is configured to move upward on the transmission slide rail through the upward thrust of the user and the upward pulling force of the tension spring. When the transmission slide plate reaches the top, it is fixed by the upward pulling force of the tension spring and the upward suction of the limit device to prevent the front cover plate from falling suddenly. The front cover plate is closed, and the transmission slide plate is moved downward on the transmission slide rail through the gravity of the front cover plate. At this time, the tension spring generates an upward pulling force to buffer the front cover plate. When the transmission slide plate reaches the bottom, the upward pulling force of the tension spring is offset by the downward suction of the limit device to prevent the front cover plate from rising suddenly during the laser engraving process.

[0008] In one embodiment, the limit device includes an upper limit magnet, a lower limit magnet and a limit switch, the upper limit magnet is located below the transmission roller, the lower limit magnet is located below the upper limit magnet, and the limit switch is located at the lower end of the lower limit magnet. The upper limit magnet and the lower limit magnet are respectively used in conjunction with the sensing probe of the limit switch, the upper limit magnet is used to limit the transmission slider at the uppermost end of the transmission slide rail, and the lower limit magnet is used to limit the transmission slider at the lowermost end of the transmission slide rail.

[0009] In one of the embodiments, inwardly extending protruding plates are provided on both sides of the front cover plate, and a safety protection switch is provided on the limit switch; wherein, when the transmission slider reaches the bottom, the front cover plate is located at the lowest end, and the protruding plate contacts the safety protection switch.

[0010] In one of the embodiments, ventilation holes are provided on the rear cover plate and the fixed plate, and smoke exhaust fans are installed at the ventilation holes; wherein the smoke exhaust fan is used to discharge the smoke generated by engraving to the outside of the protective cover module during the engraving process.

[0011] In one embodiment, the lower base plate is a hollow structure.

[0012] In one of the embodiments, anti-slip strips are provided on the upper side of the lower base plate and the bottom of the lower base plate.

[0013] The beneficial effects of the utility model are as follows: the application adopts the structural design of the protective cover module, and drives the protective cover module to open or close through the protective cover transmission module, thereby solving the problem of laser damaging the user's eyes during laser engraving. Specifically, by adopting a tension spring, a transmission roller and a transmission slide block, the front cover plate slides on the transmission slide rail, and the limit magnet and the travel switch limit the front cover plate, so that the front cover plate is opened or closed outside the engraving machine head, the front cover plate is easy to lift, and the problem of the front cover plate suddenly falling due to gravity or suddenly rising due to the tension of the tension spring can be avoided. The utility model has high safety and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application without the rear cover;

[0015] Figure 2 This is a schematic structural diagram of a protective cover transmission module according to an embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the structure of an embodiment of the present application without the front cover plate;

[0017] Figure 4 This is an overall external stereoscopic view of an embodiment of the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0021] See also Figures 1 to 4 A laser protective cover for a laser engraving machine according to an embodiment of the present application includes a protective cover module 100 and a protective cover transmission module 200. The protective cover module 100 includes an upper cover plate 11, a lower bottom plate 12, a front cover plate 13 and a rear cover plate 14. An engraving area is formed between the upper cover plate 11, the lower bottom plate 12, the front cover plate 13 and the rear cover plate 14. A limiting slide groove 15 is formed between the upper cover plate 11 and the rear cover plate 14. The protective cover transmission module 200 is arranged on the inner side of the rear cover plate 14 and is transmission-connected to the front cover plate 13.

[0022] It should be noted that the front cover plate 13 slides up and down in the limiting slide groove 15 through the protective cover transmission module 200, and an engraving area is enclosed by the upper cover plate 11, the lower base plate 12, the front cover plate 13 and the rear cover plate 14. During the engraving process, the upper cover plate 111, the lower base plate 112, the front cover plate 113 and the rear cover plate 114 are made of laser protection materials, which can block and filter the dazzling laser, thereby avoiding burns to the user's eyes and having a good protection effect.

[0023] In some optional embodiments, forward-extending limit plates 16 are provided on both sides of the rear cover plate 14, an inner protective cover 17 matched with the limit plates 16 is provided at the lower end of the upper cover plate 11, and a limit slot 15 is formed by the gap between the inner side of the limit plate 16 and the outer side of the inner protective cover 17.

[0024] It should be noted that the limiting slide groove 15 has a limiting and guiding function for the front cover plate 13 to prevent the front cover plate 13 from deviating and thus performing a lifting movement.

[0025] In some optional embodiments, the protective cover transmission module 200 includes a fixed plate 21, a transmission rail 22, a transmission slider 23, a tension spring 24, a transmission roller 25 and a limit device, the fixed plate 21 is covered and fixed on the inner side of the rear cover 14, the transmission rail 22 is installed on the outer side of the fixed plate 21, one side of the transmission slider 23 is slidably arranged on the transmission rail 22, the other side of the transmission slider 23 is fixedly connected to the front cover 13, the transmission roller 25 is rotatably arranged on the transmission rail 22, one end of the tension spring 24 is fixedly connected to the fixed plate 21, the other end of the tension spring 24 bypasses the transmission roller 25 and is fixedly connected to the front cover 13, and the limit device is arranged on the upper and lower sides of the transmission rail 22; wherein , open the front cover 13, and through the upward thrust of the user and the upward pulling force of the tension spring 24, the transmission slider 23 moves upward on the transmission slide rail 22. When the transmission slider 23 reaches the top, it is fixed by the upward pulling force of the tension spring 24 and the upward suction of the limit device to prevent the front cover 13 from falling suddenly: close the front cover 13, and the transmission slider 23 moves downward on the transmission slide rail 22 through the gravity of the front cover 13. At this time, the tension spring 24 generates an upward pulling force to buffer the front cover 13. When the transmission slider 23 reaches the bottom, the upward pulling force of the tension spring 24 is offset by the downward suction of the limit device to prevent the front cover 13 from rising suddenly during the laser engraving process.

[0026] In some optional embodiments, the limit device includes an upper limit magnet 26, a lower limit magnet 27 and a limit switch 28. The upper limit magnet 26 is located below the transmission roller 25, the lower limit magnet 27 is located below the upper limit magnet 26, and the limit switch 28 is located at the lower end of the lower limit magnet 27. The upper limit magnet 26 and the lower limit magnet 27 are respectively used in conjunction with the induction probe of the limit switch 28. The upper limit magnet 26 is used to limit the transmission slider 23 at the uppermost end of the transmission slide rail 22, and the lower limit magnet 27 is used to limit the transmission slider 23 at the lowermost end of the transmission slide rail 22.

[0027] In some optional embodiments, inwardly extending protruding plates 18 are provided on both sides of the front cover plate 13, and a safety protection switch 29 is provided on the limit switch 28; wherein, when the transmission slider 23 reaches the bottom, the front cover plate 13 is located at the lowest end, and the protruding plate 18 contacts the safety protection switch 29.

[0028] It should be noted that when the front cover 13 is opened, the transmission slider 23 moves upward on the transmission slide rail 22 through the upward thrust of the user and the upward pulling force of the tension spring 24. When the transmission slider 23 reaches the top, it is fixed by the upward pulling force of the tension spring 24 and the upward suction force of the upper limit magnet 26 to prevent the front cover 13 from falling suddenly. When the front cover 13 is closed, the transmission slider 123 moves downward on the transmission slide rail 22 through the downward gravity of the front cover 13. At this time, the tension spring 24 generates an upward pulling force to buffer the front cover 13. When the transmission slider 23 reaches the bottom, the upward pulling force of the tension spring 24 is offset by the downward suction force of the lower limit magnet 27 to prevent the front cover 13 from rising suddenly during the laser engraving process, thereby improving the safety of the protective cover module 100 and having high safety.

[0029] Furthermore, the transmission slide rail 22 and the transmission slider 23 adopt industrial-grade slide rails and industrial-grade sliders, which run smoothly, and a safety protection switch 29 is provided at the lower end of the limit switch 28. When the transmission slider 23 reaches the bottom end, the protruding plate 24 touches the safety protection switch 29, and the engraving mechanism works. If the safety protection switch 29 is not touched, the engraving mechanism cannot perform the engraving operation, further improving safety.

[0030] In some optional embodiments, ventilation holes 19 are provided on the rear cover plate 14 and the fixing plate 21, and a smoke exhaust fan 300 is installed at the ventilation hole 19; wherein, the smoke exhaust fan 300 is used to discharge the smoke generated by engraving to the outside of the protective cover module during the engraving process.

[0031] It should be noted that the smoke exhaust fan 300 is used to exhaust the smoke generated by the engraving to the outside of the protective cover module 100 during the engraving process, and the vent 19 is provided with an external card slot to which an external smoke purifier can be connected, further enhancing the safety of the engraving operation.

[0032] In some optional embodiments, the lower base plate 12 is a hollow structure, and a lifting column can be installed on the lower base plate 12 to lift the protective cover module 100 to a certain height (such as 6-12 cm), matching engraving heads of different specifications, so that the engraving head can perform engraving work on cylindrical objects.

[0033] In some optional implementations, anti-slip strips 121 are provided on the upper side of the lower base plate 12 and the bottom of the lower base plate 12 .

[0034] It should be noted that the anti-skid strip 121 can prevent the sculpture from slipping or the sculpture from slipping between the sculpture and the workbench.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser protective cover for a laser engraving machine, characterized in that: It includes a protective cover module and a protective cover transmission module, the protective cover module includes an upper cover plate, a lower bottom plate, a front cover plate and a rear cover plate, an engraving area is formed between the upper cover plate, the lower bottom plate, the front cover plate and the rear cover plate, a limiting slide groove is formed between the upper cover plate and the rear cover plate, the protective cover transmission module is arranged on the inner side of the rear cover plate and is connected to the front cover plate in transmission connection; wherein, the front cover plate slides up and down or is fixed in the limiting slide groove through the protective cover transmission module, and the protective cover module is used to filter the glaring laser during the laser engraving process to avoid eye burns.

2. The laser protective cover for a laser engraving machine according to claim 1, characterized in that: The two sides of the rear cover plate are provided with limit plates extending forward, the lower end of the upper cover plate is provided with an inner protective cover adapted to the limit plates, and the gap between the inner side of the limit plates and the outer side of the inner protective cover forms the limit sliding groove.

3. The laser protective cover for a laser engraving machine according to claim 2, characterized in that: The protective cover transmission module comprises a fixed plate, a transmission slide rail, a transmission slider, a tension spring, a transmission roller and a limit device, wherein the fixed plate is covered and fixed on the inner side of the rear cover plate, the transmission slide rail is installed on the outer side of the fixed plate, one side of the transmission slider is slidably arranged on the transmission slide rail, the other side of the transmission slider is fixedly connected to the front cover plate, the transmission roller is rotatably arranged on the transmission slide rail, one end of the tension spring is fixedly connected to the fixed plate, the other end of the tension spring bypasses the transmission roller and is fixedly connected to the front cover plate, and the limit device is arranged on the upper and lower sides of the transmission slide rail; wherein, the front cover plate is opened by The upward thrust of the user and the upward pulling force of the tension spring cause the transmission slider to move upward on the transmission slide rail. When the transmission slider reaches the top, it is fixed by the upward pulling force of the tension spring and the upward suction of the limiting device to prevent the front cover from falling suddenly. The front cover is closed, and the transmission slider is moved downward on the transmission slide rail by the gravity of the front cover. At this time, the tension spring generates an upward pulling force to buffer the front cover. When the transmission slider reaches the bottom, the upward pulling force of the tension spring is offset by the downward suction of the limiting device to prevent the front cover from rising suddenly during the laser engraving process.

4. The laser protective cover for a laser engraving machine according to claim 3, characterized in that: The limit device includes an upper limit magnet, a lower limit magnet and a limit switch, the upper limit magnet is located below the transmission roller, the lower limit magnet is located below the upper limit magnet, the limit switch is located at the lower end of the lower limit magnet, the upper limit magnet and the lower limit magnet are respectively used in conjunction with the induction probe of the limit switch, the upper limit magnet is used to limit the transmission slider at the uppermost end of the transmission slide rail, and the lower limit magnet is used to limit the transmission slider at the lowermost end of the transmission slide rail.

5. The laser protective cover for a laser engraving machine according to claim 4, characterized in that: The front cover plate is provided with inwardly extending protruding plates on both sides, and the limit switch is provided with a safety protection switch; wherein, when the transmission slider reaches the bottom end, the front cover plate is located at the lowest end, and the protruding plate contacts the safety protection switch.

6. The laser protective cover for a laser engraving machine according to claim 3, characterized in that: The rear cover plate and the fixing plate are both provided with ventilation holes, and smoke exhaust fans are installed at the ventilation holes; wherein the smoke exhaust fan is used to exhaust the smoke generated by engraving to the outside of the protective cover module during the engraving process.

7. The laser protective cover for a laser engraving machine according to claim 1, characterized in that: The lower base plate is a hollow structure.

8. The laser protective cover for a laser engraving machine according to claim 1, characterized in that: The upper side of the lower bottom plate and the bottom of the lower bottom plate are both provided with anti-slip strips.

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