An automatic focus-finding device for laser marking

Abstract

The present invention discloses an automatic focusing device for laser marking, which relates to the technical field of laser marking. The automatic focusing device for laser marking comprises a laser marking machine body, wherein a fixed connecting rail is fixedly connected to one side of the top of the laser marking machine body, a sliding assembly is provided on one side of the fixed connecting rail, a cleaning mechanism is provided on one side of the sliding assembly, a recovery mechanism is provided on the other side of the sliding assembly, and a placement table is fixedly connected to one side of the top of the laser marking machine body. In the automatic focusing device for laser marking, due to the design of the cleaning mechanism, the sliding connection block will tilt and slide down, and the rotating plate will synchronously drive the cleaning brush to rotate during the rotation process. The cleaning brush will clean the bottom of the focusing assembly and the irradiation surface of the irradiation mirror, so that the laser emitted by the irradiation mirror will not be affected by impurities and deviate, thereby making the process of focusing the material more accurate and reducing errors.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, in particular to an automatic focus-finding device for laser marking. Background Art

[0002] Laser marking technology is one of the largest applications of laser processing. Laser marking utilizes a high-energy-density laser to locally illuminate a workpiece, vaporizing the surface material or inducing a chemical reaction that changes color, leaving a permanent mark. Laser marking can produce a variety of text, symbols, and patterns, with character sizes ranging from millimeters to microns, which is particularly important for product anti-counterfeiting. The basic principle of laser marking is that a laser generator generates a high-energy, continuous laser beam. The focused laser beam is applied to the substrate, instantly melting or even vaporizing the surface material. By controlling the laser's path across the surface, the desired graphic mark is formed. Laser marking is characterized by its non-contact processing, allowing it to mark any irregular surface without deformation or internal stress. It is suitable for marking materials such as metal, plastic, glass, ceramics, wood, and leather.

[0003] At present, laser marking is mainly carried out through laser irradiation. Usually, an irradiation mirror is installed inside the laser marking equipment. However, if the irradiation mirror is not used for a long time, dust and impurities may adhere to its surface. If the material is directly irradiated and focused in this state, the presence of impurities will cause deviations in the irradiation point, which can easily cause inaccurate material marking. Therefore, further improvement is needed. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic focus-finding device for laser marking, which achieves the purpose of solving the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic focus-finding device for laser marking, comprising a laser marking machine body, a fixed connecting rail fixedly connected to one side of the top of the laser marking machine body, a sliding assembly provided on one side of the fixed connecting rail, a cleaning mechanism provided on one side of the sliding assembly, a recovery mechanism provided on the other side of the sliding assembly, and a placement table fixedly connected to one side of the top of the laser marking machine body;

[0006] The top of the rotating plate is fixedly connected with a cleaning brush, and a limited block is fixedly installed on one side of the bottom of the focusing assembly, and the bottom of the focusing assembly is embedded in the fixing shaft.

[0007] The recovery mechanism includes a magnetic stone, which is embedded in one side of the bottom of the focus-seeking component. A magnetic connection frame is provided at the bottom of the magnetic stone, and a folding cleaning rod is fixedly connected to one side of the top of the magnetic connection frame.

[0008] Preferably, the top of the sliding connecting plate contacts the bottom of the focus-finding assembly, and the top of the cleaning brush contacts the bottom of the focus-finding assembly, which can facilitate cleaning of the bottom of the focus-finding assembly during the movement of the cleaning brush.

[0009] Preferably, the rotating plate body extends into the interior of the sliding connection block, and the rotating plate body and the sliding connection block are movably connected via a rotating shaft, which can facilitate the rotational connection work of the rotating plate body.

[0010] Preferably, a sliding connection groove is opened on one side of the bottom of the focus-seeking component, and the sliding connection block is slidably connected to the inside of the sliding connection groove, which can facilitate the sliding connection block to slide inside the sliding connection groove.

[0011] Preferably, the magnetic poles between the magnetic stone and the magnetic connection frame are set to be opposite, and the magnetic stone and the magnetic connection frame are magnetically connected, which can facilitate the attraction between the two, and then the magnetic connection frame can be taken out and separated.

[0012] Preferably, the rotating connecting rod passes through the interior of the fixed connecting plate, and the rotating connecting rod and the fixed connecting plate are connected via a bearing, which can facilitate the rotation of the rotating connecting rod.

[0013] Preferably, a horizontal groove is provided inside the sliding component, and the focusing component is in contact with the horizontal groove. The design of the horizontal groove can facilitate the focusing component to be adjusted to a horizontal state during the focusing process, thereby facilitating subsequent accurate marking of the material.

[0014] Preferably, the cross section of the fixed connecting plate is L-shaped, and the cross section of the folding cleaning rod is a multi-segment arc.

[0015] The present invention provides an automatic focus-finding device for laser marking, which has the following beneficial effects:

[0016] 1. The automatic focusing device for laser marking, through the design of the cleaning mechanism, will brush against the outer surface of the limit block due to the large mass of the sliding connection block itself and the state of tilting and sliding. Then the restoring telescopic spring will quickly stretch and drive the rotating plate to rotate. During the rotation process, the rotating plate will synchronously drive the cleaning brush to rotate. The cleaning brush will clean the bottom of the focusing assembly and the irradiation surface of the irradiation mirror, so that the laser emitted by the irradiation mirror will not deviate due to the influence of impurities, making the process of focusing the material more accurate and reducing errors.

[0017] 2. The automatic focus-finding device for laser marking is designed with a cleaning mechanism and a recovery mechanism, so that the cleaning brush will gradually enter the interior of the magnetic connection frame during the sliding process. When the cleaning brush contacts the folding cleaning rod, the cleaning brush and the folding cleaning rod move relative to each other, so the impurities and dust adhering to the surface of the cleaning brush will be scraped off, making the cleaning brush self-cleaning, making it convenient for the subsequent cleaning brush to remain in an efficient state when cleaning the focus-finding component and the bottom of the irradiation mirror, and preventing the problem of decreased effect after long-term cleaning.

[0018] 3. The automatic focus-finding device for laser marking is designed with a cleaning mechanism and a recycling mechanism. Since the cleaning brush can be self-cleaned, the impurities and dust after self-cleaning will automatically fall into the inside of the magnetic connection frame to facilitate the recovery of impurities and dust, preventing impurities and dust from falling on the material or the surface of the placement plate, which requires manual cleaning, thereby ensuring practical effects.

[0019] 4. The laser marking automatic focus-finding device has a recycling mechanism design. Since the collection work can be completed inside the folding cleaning rod, when the staff needs to take out the folding cleaning rod and pour out the impurities and dust inside it, the staff can separate the folding cleaning rod from the magnetic stone to facilitate the cleaning of impurities and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention from a frontal perspective;

[0021] Figure 2 This is a schematic diagram of the overall structure of the rear view perspective of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified view of point A in the figure;

[0023] Figure 4It is a partial structural diagram of the cleaning mechanism in the present invention;

[0024] Figure 5 Schematic diagram of the overall structure of the collecting mechanism in the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged view of point B in FIG.

[0026] Figure 7 For the present invention Figure 5 Enlarged view of point C in the figure.

[0027] In the figure: 1. Laser marking machine body; 2. Fixed connecting rail; 3. Sliding assembly; 4. Cleaning mechanism; 401. Fixed connecting plate; 402. Motor; 403. Rotating connecting rod; 404. Focusing assembly; 405. Sliding connecting block; 406. Sliding connecting rod; 407. Sliding connecting plate; 408. Restoring telescopic spring; 409. Rotating plate; 410. Cleaning brush; 411. Limiting block; 5. Recovery mechanism; 501. Magnetic stone; 502. Magnetic connecting frame; 503. Folding cleaning rod; 6. Illumination mirror. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0030] See also Figure 1-7 The present invention provides a technical solution: an automatic focus-finding device for laser marking, comprising a laser marking machine body 1, a fixed connecting rail 2 fixedly connected to one side of the top of the laser marking machine body 1, a sliding assembly 3 provided on one side of the fixed connecting rail 2, a cleaning mechanism 4 provided on one side of the sliding assembly 3, a recycling mechanism 5 provided on the other side of the sliding assembly 3, and a placement table fixedly connected to one side of the top of the laser marking machine body 1;

[0031] The cleaning mechanism 4 includes a fixed connecting plate 401, which is fixedly connected to one side of the outside of the sliding assembly 3, and one side of the fixed connecting plate 401 is fixedly connected to a motor 402, and the motor 402 is fixedly connected to a rotating connecting rod 403 through an output shaft, and one end of the rotating connecting rod 403 is fixedly connected to a focus-seeking assembly 404, and one side of the bottom of the focus-seeking assembly 404 is fixedly connected to a sliding connecting block 405, and one end of the sliding connecting block 405 is fixedly connected to a sliding connecting rod 406, and one side of the sliding connecting rod 406 is fixedly connected to a sliding connecting plate 407, and one side of the sliding connecting plate 407 is fixedly connected to a restoring telescopic spring 408, and one end of the restoring telescopic spring 408 is fixedly connected to a rotating plate body 409, and a cleaning brush 410 is fixedly connected to the top of the rotating plate body 409, and a limiting block 411 is fixedly installed on one side of the bottom of the focus-seeking assembly 404, and an irradiation mirror 6 is embedded in the bottom of the focus-seeking assembly 404;

[0032] The recovery mechanism 5 includes a magnetic stone 501, which is embedded in one side of the bottom of the focus-finding component 404. A magnetic connection frame 502 is provided at the bottom of the magnetic stone 501, and a folding cleaning rod 503 is fixedly connected to one side of the top of the magnetic connection frame 502.

[0033] The top of the sliding connecting plate 407 contacts the bottom of the focus-finding assembly 404 , and the top of the cleaning brush 410 contacts the bottom of the focus-finding assembly 404 .

[0034] The rotating plate 409 extends into the interior of the sliding connection block 405 , and the rotating plate 409 and the sliding connection block 405 are movably connected via a rotating shaft.

[0035] A sliding connection groove is provided on one side of the bottom of the focus-seeking component 404 , and the sliding connection block 405 is slidably connected inside the sliding connection groove.

[0036] The magnetic poles between the magnetic stone 501 and the magnetic connection frame 502 are set to be opposite, and the magnetic stone 501 and the magnetic connection frame 502 are connected by magnetism.

[0037] The rotating connecting rod 403 passes through the interior of the fixed connecting plate 401 , and the rotating connecting rod 403 and the fixed connecting plate 401 are connected via a bearing.

[0038] A horizontal groove is provided inside the sliding component 3 , and the focus-finding component 404 is in contact with the horizontal groove.

[0039] The cross section of the fixed connecting plate 401 is set to be L-shaped, and the cross section of the folded cleaning rod 503 is a multi-segment arc.

[0040] During use, when the material needs to be laser marked, the staff first places the material on the top of the placement table, and then turns on the laser marking machine body 1. The laser marking machine body 1 will control the sliding component 3 to move up and down to the appropriate position, and then the staff will turn on the motor 402 to the forward mode. The motor 402 will drive the rotating connecting rod 403 to rotate clockwise. During the rotation process, the rotating connecting rod 403 will synchronously drive the focusing component 404 to tilt to a certain degree. At this time, the sliding connecting block 405 will begin to slide downward inside the sliding connecting groove by its own weight. During the downward sliding process, the sliding connecting block 405 will synchronously drive the sliding connecting rod 406 and the sliding connecting plate 407 to slide synchronously. During the sliding process, the sliding connecting plate 407 will synchronously drive the recovery and extension The spring 408 and the rotating plate 409 slide downward, and when the rotating plate 409 slides down and contacts the limit block 411, the limit block 411 will block the rotating plate 409, and the restoring telescopic spring 408 will be compressed in this process. Since the sliding connection block 405 itself has a large mass and is in a tilted and sliding state, it will brush against the outer surface of the limit block 411. Then the restoring telescopic spring 408 will quickly stretch and drive the rotating plate 409 to rotate. During the rotation of the rotating plate 409, the cleaning brush 410 will be synchronously driven to rotate. The cleaning brush 410 will clean the bottom of the focus-finding assembly 404 and the irradiation surface of the irradiation mirror 6, so that the limit block 411 can more effectively clean the irradiation surface of the irradiation mirror 6 through acceleration during the cleaning process;

[0041] Through the above work, the irradiation mirror 6 can be cleaned, so that the laser irradiated by the irradiation mirror 6 will not be affected by impurities and deviate, making the process of focusing on the material more accurate and reducing errors;

[0042] During the above working process, the cleaning brush 410 will continue to slide down after cleaning the irradiation surface of the irradiation mirror 6. During the sliding process, the cleaning brush 410 will gradually enter the interior of the magnetic connection frame 502. When the cleaning brush 410 contacts the folding cleaning rod 503, the cleaning brush 410 and the folding cleaning rod 503 move relative to each other, so that impurities and dust adhering to the surface of the cleaning brush 410 will be scraped off, so that the cleaning brush 410 is self-cleaning, which is convenient for the subsequent cleaning brush 410 to be in an efficient state when cleaning the focus finding component 404 and the bottom of the irradiation mirror 6, thereby preventing the problem of decreased cleaning effect after long-term cleaning.

[0043] During the above working process, the cleaning brush 410 is self-cleaning, so the impurities and dust after self-cleaning by the cleaning brush 410 will automatically fall into the interior of the magnetic connection frame 502, so as to facilitate the work of recycling the impurities and dust, and prevent the impurities and dust from falling on the surface of the material or the placement plate, which requires manual cleaning, thereby ensuring practical effect;

[0044] During the above working process, since the folding cleaning rod 503 has completed the collection work, when the staff needs to take out the folding cleaning rod 503 and pour out the impurities and dust inside it, the staff can separate the folding cleaning rod 503 from the magnetic stone 501 and then proceed with subsequent work.

[0045] When all the above work is completed, the irradiation mirror 6 can accurately focus the material. When the marking work on the material is completed, the staff will turn on the reverse mode of the motor 402 until the focusing assembly 404 is reversed and tilted. The sliding connection block 405 will slide and reset inside the sliding connection groove by its own weight to facilitate subsequent cleaning work.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser marking automatic focus-finding device, comprising a laser marking machine body (1), characterized in that: A fixed connecting rail (2) is fixedly connected to one side of the top of the laser marking machine body (1), a sliding assembly (3) is provided on one side of the fixed connecting rail (2), a cleaning mechanism (4) is provided on one side of the sliding assembly (3), and a recycling mechanism (5) is provided on the other side of the sliding assembly (3), and a placement table is fixedly connected to one side of the top of the laser marking machine body (1); The cleaning mechanism (4) comprises a fixed connecting plate (401), the fixed connecting plate (401) being fixedly connected to one side of the outside of the sliding assembly (3), one side of the fixed connecting plate (401) being fixedly connected to a motor (402), the motor (402) being fixedly connected to a rotating connecting rod (403) via an output shaft, one end of the rotating connecting rod (403) being fixedly connected to a focus-finding assembly (404), one side of the bottom of the focus-finding assembly (404) being fixedly connected to a sliding connecting block (405), one end of the sliding connecting block (405) being fixedly connected to a sliding connecting rod (406), and one side of the sliding connecting rod (406) being fixedly connected to a focus-finding assembly (404). A sliding connecting plate (407) is connected, one side of the sliding connecting plate (407) is fixedly connected to a restoring telescopic spring (408), one end of the restoring telescopic spring (408) is fixedly connected to a rotating plate (409), the top of the rotating plate (409) is fixedly connected to a cleaning brush (410), a limiting block (411) is fixedly installed on one side of the bottom of the focusing assembly (404), and an irradiation mirror (6) is embedded in the bottom of the focusing assembly (404); the rotating plate (409) extends into the interior of the sliding connecting block (405), and the rotating plate (409) and the sliding connecting block (405) are movably connected via a rotating shaft; A sliding connection groove is provided on one side of the bottom of the focus-seeking component (404), and the sliding connection block (405) is slidably connected inside the sliding connection groove.

2. The laser marking automatic focus-finding device according to claim 1, characterized in that: The recovery mechanism (5) comprises a magnetic stone (501), the magnetic stone (501) being embedded in one side of the bottom of the focus-seeking component (404), a magnetic connection frame (502) being provided at the bottom of the magnetic stone (501), and a folding cleaning rod (503) being fixedly connected to one side of the top of the magnetic connection frame (502).

3. The laser marking automatic focus-finding device according to claim 2, characterized in that: The top of the sliding connection plate (407) contacts the bottom of the focus-finding assembly (404), and the top of the cleaning brush (410) contacts the bottom of the focus-finding assembly (404).

4. The laser marking automatic focus-finding device according to claim 2, characterized in that: The magnetic attraction stone (501) and the magnetic attraction connection frame (502) are magnetically arranged to have different poles, and the magnetic attraction stone (501) and the magnetic attraction connection frame (502) are connected to each other through magnetism.

5. The laser marking automatic focus-finding device according to claim 2, characterized in that: The rotating connecting rod (403) passes through the interior of the fixed connecting plate (401), and the rotating connecting rod (403) and the fixed connecting plate (401) are connected via a bearing.

6. The laser marking automatic focus-finding device according to claim 2, characterized in that: A horizontal groove is provided inside the sliding component (3), and the focus-seeking component (404) is in contact with the horizontal groove.

7. The laser marking automatic focus-finding device according to claim 2, characterized in that: The cross section of the fixed connecting plate (401) is configured to be L-shaped, and the cross section of the folding cleaning rod (503) is configured to be multi-segment arc-shaped.

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