A laser marking device for electric toothbrush logo

Abstract

The present invention belongs to the technical field of toothbrush processing, and specifically relates to a laser marking device for electric toothbrush logos, comprising a workbench, a marking device, and an electric slide rail; a dust extraction mechanism, the dust extraction mechanism being arranged on the workbench; a fixing mechanism, two of the fixing mechanisms being arranged on the electric slide rail; a spraying mechanism, the spraying mechanism being arranged on the workbench; a rotating mechanism, the rotating mechanism being arranged on the workbench and used to drive the marking toothbrush to rotate; a clamping mechanism, the clamping mechanism being arranged on the fixing mechanism; wherein the spraying mechanism includes a storage box, the storage box being fixedly connected to the workbench, the top surface of the workbench being further provided with a spraying portion, an infusion portion being connected between the spraying portion and the storage box, and the infusion portion being provided with two linkage portions. The present invention improves the clarity of toothbrush logos and production efficiency through nano-coating spraying and full-scale rotary marking, while the dust extraction device ensures operational safety and environmental cleanliness.

Description

Technical Field

[0001] The invention belongs to the technical field of toothbrush processing, and particularly relates to a laser marking device for an electric toothbrush logo. Background Art

[0002] Laser marking technology is one of the largest applications of laser processing. Laser marking utilizes high-energy-density lasers 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. This is particularly important for product anti-counterfeiting. During toothbrush processing, laser marking equipment is used to print logos on the brush handles.

[0003] For example, the Chinese patent publication number is CN210498819U, which is an automatic laser marking machine for toothbrushes. The marking machine uses a feeding device to feed one toothbrush to be marked into the same specific position of the groove each time. At this time, the laser marker laser marks the toothbrush to be marked in the groove, and this cycle is repeated to complete the automated operation. It can realize linkage marking while feeding at high speed, which can greatly improve the work efficiency of the entire production line.

[0004] Laser marking machines such as the one mentioned above are unable to fully mark toothbrush handles. They also do not have the function of spraying a protective coating when marking toothbrushes. For example, direct marking on dark or highly reflective handles (such as metal coatings) can easily cause light spot scattering, resulting in blurred patterns and seriously reducing product quality. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser marking device for electric toothbrush logos, which improves the clarity of toothbrush logos and production efficiency through nano-coating spraying and full-scale rotary marking. At the same time, the dust extraction device ensures operational safety and environmental cleanliness.

[0006] The technical solutions adopted by the present invention are as follows:

[0007] A laser marking device for an electric toothbrush logo comprises a workbench, a marking device is fixedly mounted on the top surface of the workbench for laser marking a toothbrush, and an electric slide rail and a dust extraction mechanism are also mounted on the top surface of the workbench;

[0008] Fixing mechanism, both fixing mechanisms are arranged on the electric slide rail, used to fix the toothbrush to be processed, and the fixing mechanism located on the side is in the loading and unloading machine position, and the fixing mechanism located in the middle is in the marking machine position;

[0009] A spraying mechanism is provided on the workbench and is used to spray a nano coating onto the surface of the toothbrush to be processed when the fixing mechanism moves from the loading and unloading machine position to the marking machine position;

[0010] A rotating mechanism, which is arranged on a workbench and is used to drive the marking toothbrush to rotate;

[0011] A clamping mechanism, wherein the clamping mechanism is provided on the fixing mechanism;

[0012] Among them, the spraying mechanism includes a storage box, which is fixedly connected to the workbench. The top surface of the workbench is also provided with a spraying part. An infusion part is connected between the spraying part and the storage box. Two linkage parts are provided on the infusion part. When the fixed mechanism moves from the loading and unloading machine position to the marking machine position, the spraying part can move a distance with the fixed mechanism through the clamping mechanism, and the infusion part is driven by the linkage part to enable the spraying part to perform the spraying operation; and when the fixed mechanism moves from the marking machine position to the loading and unloading machine position, the spraying part is reset and the spraying operation is stopped.

[0013] In a preferred embodiment, a first rack is connected to the electric slide rail by a support rod, and teeth are provided at both ends of the first rack, and the middle end is a plane.

[0014] In a preferred embodiment, the dust extraction mechanism includes a dust extraction shell, which is fixedly connected to the top surface of the workbench by a support rod, a negative pressure fan is installed at the lower end of the dust extraction shell, and a filter plate is pull-out plugged into the dust extraction shell.

[0015] In a preferred embodiment, the fixing mechanism includes a slider, which is slidably connected in the electric slide rail, and a fixing ring is fixedly connected to the slider, and a hollow ring is rotatably connected to the fixing ring through a bearing, and clamping blocks are arranged in a ring-shaped distribution in the hollow ring, and a spring is fixedly connected between the clamping block and the hollow ring, and a gear ring is fixedly provided on the outer wall of one end of the hollow ring, and a sliding rod is also connected to one of the hollow rings, and a block is slidably connected to the sliding rod, and the hollow ring is also fixedly and rotatably connected to a screw, and the screw is threadedly connected to the block.

[0016] In a preferred embodiment, the inner side of the clamping block is covered with a high elasticity silicone layer.

[0017] In a preferred embodiment, the spraying part includes a slide rail, which is fixedly connected to the top surface of the workbench, a limit block is fixedly connected to the middle part of the slide rail, two moving blocks are slidably connected to the slide rail, a support rod is fixedly connected to the moving block, a hollow box is fixedly connected to the support rod, the lower end of the hollow box is connected to the nozzle in an array, and a hemispherical groove is provided on the moving block.

[0018] In a preferred embodiment, the infusion part includes a hollow cylinder, and the two hollow cylinders are fixedly connected to the top surface of the workbench. The first infusion tube and the second infusion tube are connected to the hollow cylinder, and the other end of the first infusion tube is connected to the storage box, and the other end of the second infusion tube is connected to the hollow box.

[0019] In a preferred embodiment, the linkage part includes a round rod, which is rotatably connected to the top surface of the workbench through a bearing, the lower end of the round rod is fixedly connected to a gear, the upper end of the round rod is fixedly connected to a winding roller, and the winding roller is fixedly connected to a traction rope. The top surface of the workbench is also fixedly connected to a guide frame, and the traction rope passes through the guide frame. A moving rod is piston-type inserted at one end of the hollow cylinder, and the end of the moving rod located in the hollow cylinder is fixedly connected to a piston plate, and the other end of the moving rod is fixedly connected to the traction rope, one side of the piston plate is fixedly connected to a compression spring, and the other end of the compression spring is fixedly connected to the inner wall of the hollow cylinder, and the two fixing mechanisms are fixedly connected to a second rack by a support rod.

[0020] In a preferred embodiment, the rotating mechanism includes an electric push rod, which is fixedly connected to the top surface of the workbench. A servo motor is fixedly installed on the telescopic end of the electric push rod. A fixed block is fixedly connected to the output shaft of the servo motor, and the fixed block is made of rubber.

[0021] In a preferred embodiment, the clamping mechanism includes a linkage rod, which is fixedly connected to the slider. A resistance block is slidably inserted into the cavity of the linkage rod, and a return spring is fixedly connected between the resistance block and the linkage rod.

[0022] The technical effects achieved by the present invention are:

[0023] By spraying a nano-coating on the toothbrush handle before laser marking, this invention optimizes the surface optical properties and reduces the scattering of laser energy. This allows for clearer marking even on dark or highly reflective materials (such as metal coatings), significantly improving product quality.

[0024] This invention utilizes a rotating mechanism to drive the toothbrush mounted on it to rotate, achieving full marking of the outer surface of the brush handle, overcoming the limitation of previous technologies that prevented full marking. Furthermore, the dual-station workflow design allows for simultaneous loading and unloading of one toothbrush while marking another, and nano-coating can be sprayed while the toothbrush is in motion, significantly improving production continuity and efficiency.

[0025] The dust extraction mechanism in this invention not only effectively collects smoke and dust generated during the laser marking process, but also removes particles that may be dispersed during the spraying operation, reducing the risk of environmental pollution, improving the working environment, and protecting the health of operators. The filter plate design is easy to clean and replace, ensuring the continued effectiveness of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a right side view of the present invention as a whole;

[0027] Figure 2 It is a left side view of the present invention as a whole;

[0028] Figure 3 This is a schematic diagram of the structure of the marking device on the workbench of the present invention after being disassembled;

[0029] Figure 4 This invention Figure 3 Rear view;

[0030] Figure 5 It is a structural diagram of the linkage part and the fixing mechanism of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0032] Figure 7 This invention Figure 6 Right side view;

[0033] Figure 8 It is a schematic diagram of the internal structure of the hollow cylinder of the present invention;

[0034] Figure 9 It is a structural schematic diagram of the spraying part of the present invention;

[0035] Figure 10 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0036] Figure 11 This invention Figure 1 An enlarged schematic diagram of part A shown in FIG;

[0037] Figure 12 1. It is a disassembled schematic diagram of the dust extraction mechanism of the present invention;

[0038] Figure 13 This invention Figure 12 Bottom view of

[0039] Figure 14 It is a structural diagram of a toothbrush in the present invention.

[0040] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0041] 1. Workbench; 2. Marking equipment; 3. Electric slide rail; 31. First rack; 4. Dust extraction mechanism; 5. Fixing mechanism; 6. Spraying mechanism; 7. Rotating mechanism; 8. Clamping mechanism;

[0042] 41. Dust extraction shell; 42. Negative pressure fan; 43. Filter plate;

[0043] 51. Slider; 52. Fixing ring; 53. Hollow ring; 54. Spring; 55. Clamp; 56. Ring gear; 57. Sliding rod; 58. Screw; 59. Stopper;

[0044] 61. Storage box; 62. Spraying unit; 63. Infusion unit; 64. Linkage unit;

[0045] 621, slide rail; 622, limit block; 623, moving block; 624, support rod; 625, hollow box; 626, nozzle; 627, groove;

[0046] 631, hollow tube; 632, first infusion tube; 633, second infusion tube;

[0047] 641, round rod; 642, gear; 643, winding roller; 644, traction rope; 645, guide frame; 646, moving rod; 647, piston plate; 648, compression spring; 649, second rack;

[0048] 71. Electric push rod; 72. Servo motor; 73. Fixed block;

[0049] 81. Linkage rod; 82. Resistance block; 83. Return spring. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0051] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0052] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0053] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0054] Please see the attached Figures 1 to 4 As shown, this embodiment provides a laser marking device for an electric toothbrush logo, comprising a workbench 1, a marking device 2 is fixedly mounted on the top surface of the workbench 1 for laser marking a toothbrush, and an electric slide rail 3 and a dust extraction mechanism 4 are also mounted on the top surface of the workbench 1;

[0055] Fixing mechanism 5, two fixing mechanisms 5 are arranged on the electric slide rail 3, used to fix the toothbrush to be processed, and the fixing mechanism 5 located on the side is in the loading and unloading machine position, and the fixing mechanism 5 located in the middle is in the marking machine position;

[0056] The spraying mechanism 6 is arranged on the workbench 1 and is used to spray the nano coating on the surface of the toothbrush to be processed when the fixing mechanism 5 moves from the loading and unloading machine position to the marking machine position;

[0057] Rotating mechanism 7, which is provided on the workbench 1 and is used to drive the marking toothbrush to rotate;

[0058] The clamping mechanism 8 is provided on the fixing mechanism 5;

[0059] Among them, the spraying mechanism 6 includes a storage box 61, which is fixedly connected to the workbench 1. The top surface of the workbench 1 is also provided with a spraying part 62, and an infusion part 63 is connected between the spraying part 62 and the storage box 61. The infusion part 63 is provided with two linkage parts 64. When the fixing mechanism 5 moves from the loading and unloading machine position to the marking machine position, the spraying part 62 can move a distance with the fixing mechanism 5 through the clamping mechanism 8, and drive the infusion part 63 to operate through the linkage part 64 to enable the spraying part 62 to perform the spraying operation; and when the fixing mechanism 5 moves from the marking machine position to the loading and unloading machine position, the spraying part 62 is reset and the spraying operation is stopped.

[0060] Next, please refer to Figure 3 The electric slide rail 3 is connected to a first rack 31 by a support rod, and teeth are provided at both ends of the first rack 31, and the middle end is a plane.

[0061] Next, please refer to Figures 5 to 7The fixing mechanism 5 includes a slider 51, which is slidably connected to the electric slide rail 3. A fixing ring 52 is fixedly connected to the slider 51, and a hollow ring 53 is rotatably connected to the fixing ring 52 through a bearing. Clamps 55 are arranged in an annular shape in the hollow ring 53, and a spring 54 is fixedly connected between the clamp 55 and the hollow ring 53. A gear ring 56 is fixedly sleeved on the outer wall of one end of the hollow ring 53. A sliding rod 57 is also connected to one of the hollow rings 53, and a stopper 59 is slidably connected to the sliding rod 57. The hollow ring 53 is also fixedly rotatably connected to a screw 58, and the screw 58 is threadedly connected to the stopper 59, wherein the inner side of the clamp 55 is covered with a high-elasticity silicone layer.

[0062] In this embodiment, if Figure 3 As shown, the toothbrush is marked in the fixing mechanism 5 located in the middle of the workbench 1 and directly below the marking device 2. At this time, the toothbrush to be processed is placed in the fixing mechanism 5 located on one side of the workbench 1. Specifically, the brush handle is inserted into the two hollow rings 53 in sequence. During the insertion process, the clamping blocks 55 in the hollow rings 53 move away from each other and squeeze the spring 54. The spring 54 generates a reaction force and applies it to the clamping blocks 55, causing the clamping blocks 55 in the hollow rings 53 to move closer to each other. The toothbrush handle is fixed by using multiple clamping blocks 55. Until the end of the brush handle hits the stop block 59, it can no longer be inserted inward, and the toothbrush is fixed at this point. The inner side of the clamping block 55 is covered with a highly elastic silicone layer to prevent the clamping block 55 from scratching the toothbrush handle.

[0063] It is important to note that after the toothbrush is secured, the bristle-side of the toothbrush head must be facing upward, with the end of the handle resting against the stopper 59. This helps to define the position of the handle and ensure consistent marking. Furthermore, by twisting the screw 58, the stopper 59 can be moved along the slide bar 57, thereby adjusting the position of the stopper 59 and, in turn, the insertion depth of the toothbrush handle to adjust the marking position.

[0064] When the toothbrush in the middle is marked, the slider 51 is moved by the electric slide rail 3, thereby driving the two fixing mechanisms 5 to move to the left. Then the right fixing mechanism 5 moves to the marking position for marking, and the left fixing mechanism 5 moves to the left side of the workbench 1. In this way, the toothbrush can be loaded and unloaded while marking, so that the marking operation can be carried out continuously, reducing time waste and improving processing efficiency.

[0065] This dual-station workflow design not only improves production efficiency but also ensures accurate and consistent marking of toothbrushes. By controlling the insertion depth of the toothbrush handle, the marking position can be guaranteed every time, avoiding the errors that may be caused by manual operation.

[0066] Please refer again Figure 10The clamping mechanism 8 includes a linkage rod 81, which is fixedly connected to the slider 51. A resistance block 82 is slidably inserted into the cavity of the linkage rod 81, and a return spring 83 is fixedly connected between the resistance block 82 and the linkage rod 81.

[0067] In this embodiment, the resistance block 82 is connected in a sliding manner in the cavity and is equipped with a return spring 83 so that it can shrink into the cavity when subjected to pressure, and after the pressure is eliminated, it returns to its original position with the help of the elastic force of the return spring 83; in addition, the end of the resistance block 82 is designed to be hemispherical.

[0068] Please refer again Figure 3 and Figure 9 The spraying part 62 includes a slide rail 621, which is fixedly connected to the top surface of the workbench 1. The middle part of the slide rail 621 is fixedly connected to a limit block 622. Two moving blocks 623 are slidably connected to the slide rail 621. The moving block 623 is fixedly connected to a support rod 624. The support rod 624 is fixedly connected to a hollow box 625. The lower end of the hollow box 625 is connected to a nozzle 626 in an array distribution. A hemispherical groove 627 is provided on the moving block 623.

[0069] In this embodiment, the design of the slide rail 621 allows the two moving blocks 623 to slide freely thereon, thereby driving the hollow box 625 and the nozzle 626 to move. The setting of the limit block 622 ensures the accuracy of the moving block 623 during the sliding process and prevents it from sliding out of the limited range.

[0070] The design of hemispherical groove 627 not only perfectly fits the hemispherical end of the resistance block 82, but also provides a smooth sliding path when the resistance block 82 is subjected to pressure, ensuring that the resistance block 82 can be smoothly retracted into the cavity of the linkage rod 81. When the pressure is removed, the elastic force of the return spring 83 pushes the resistance block 82 back to its original position, allowing the hemispherical end of the resistance block 82 to be tightly embedded in the hemispherical groove 627, achieving a stable engagement.

[0071] In addition, the hollow box 625 can store paint inside and evenly spray it on the toothbrush handle through the nozzle 626 to assist the subsequent laser marking operation.

[0072] Please refer again Figure 3 and Figure 8 The infusion part 63 includes a hollow cylinder 631, and the two hollow cylinders 631 are fixedly connected to the top surface of the workbench 1. The first infusion tube 632 and the second infusion tube 633 are connected to the hollow cylinder 631, and the other end of the first infusion tube 632 is connected to the storage box 61, and the other end of the second infusion tube 633 is connected to the hollow box 625.

[0073] In this embodiment, one-way valves are installed at the connection ends of the first and second liquid infusion tubes 632, 633, and the hollow cylinder 631. The one-way valve on the first liquid infusion tube 632 ensures that the paint can flow into the hollow cylinder 631 in one direction, while preventing the paint from flowing out in the opposite direction. Conversely, the one-way valve on the second liquid infusion tube 633 allows the paint to be discharged from the hollow cylinder 631, but prevents the paint from entering in the opposite direction. Therefore, under the movement of the piston plate 647, the paint can only be discharged through the second liquid infusion tube 633. When the piston plate 647 performs the extraction action and draws the paint into the hollow cylinder 631, the paint can only enter through the first liquid infusion tube 632.

[0074] It should be noted that the first infusion tube 632 is a hard tube, and a portion of the second infusion tube 633 is a hard tube and a portion is a soft tube, and a fixing frame is provided on the second infusion tube 633 .

[0075] Please refer again Figure 3 、 Figure 5 and Figure 8 The linkage part 64 includes a round rod 641, which is rotatably connected to the top surface of the workbench 1 through a bearing. The lower end of the round rod 641 is fixedly connected to a gear 642, and the upper end of the round rod 641 is fixedly connected to a winding roller 643, and the winding roller 643 is fixedly connected to a traction rope 644. The top surface of the workbench 1 is also fixedly connected to a guide frame 645, and the traction rope 644 passes through the guide frame 645. One end of the hollow cylinder 631 is piston-type plugged with a moving rod 646, and one end of the moving rod 646 located in the hollow cylinder 631 is fixedly connected to a piston plate 647, and the other end of the moving rod 646 is fixedly connected to the traction rope 644, and one side of the piston plate 647 is fixedly connected to a compression spring 648, and the other end of the compression spring 648 is fixedly connected to the inner wall of the hollow cylinder 631. The two fixing mechanisms 5 are fixedly connected to a second rack 649 by a support rod.

[0076] In this embodiment, as the two fixing mechanisms 5 drive the second rack 649 to move leftward, the second rack 649 engages with the gear 642, thereby causing the round rod 641 to rotate. As the round rod 641 rotates, the right round rod 641 drives the take-up roller 643 to unwind, while the left round rod 641 drives the take-up roller 643 to rewind. Conversely, when the second rack 649 moves rightward, the right take-up roller 643 rewinds, while the left take-up roller 643 unwinds.

[0077] For example, when the second rack 649 moves to the left, the right reel 643 begins to unwind, causing the right movable rod 646 to gradually lose the tension of the traction rope 644. Under the restoring force of the compression spring 648, the piston plate 647 and movable rod 646 move toward the end connected to the second infusion tube 633. As the piston plate 647 moves, the paint within the hollow cylinder 631 is squeezed, passing along the second infusion tube 633 into the hollow box 625, and ultimately sprayed out of the nozzle 626 (which can be an atomizing nozzle, ultrasonic atomizing nozzle, etc.), evenly spraying the toothbrush handle. At the same time, the left winding roller 643 rewinds, and the left movable rod 646 moves away from the end connected to the second liquid infusion tube 633 under the tension of the traction rope 644. The movement of the movable rod 646 drives the piston plate 647 to pump the paint in the storage box 61 along the first liquid infusion tube 632 into the hollow cylinder 631. When the second rack 649 moves rightward, the left piston plate 647 moves to squeeze the paint out of the left hollow cylinder 631, while the right piston plate 647 pumps the paint along the first liquid infusion tube 632 into the right hollow cylinder 631. Specifically, when the two fixing mechanisms 5 move leftward, the toothbrush on the right fixing mechanism 5 performs the spraying operation, while the toothbrush on the left fixing mechanism 5 does not. Conversely, when the two fixing mechanisms 5 move rightward, the toothbrush on the left fixing mechanism 5 performs the spraying operation, while the toothbrush on the right fixing mechanism 5 does not. By doing this, it is possible to ensure that the toothbrush is sprayed with a nano-coating before marking. The nano-coating optimizes the optical properties of the surface, reduces the scattering of laser energy, and makes the marking pattern clearer.

[0078] The ring gear 56 on the hollow ring 53 meshes with the first rack 31, causing the fixing mechanism 5 to rotate the hollow ring 53 during movement. The synchronized rotation of the two hollow rings 53 drives the toothbrush, allowing the surface of the toothbrush handle to be evenly and comprehensively coated with paint. The meshing of the ring gear 56 with the first rack 31 causes the hollow ring 53 to rotate one or more times (not specifically limited), ensuring that when the toothbrush moves directly below the marking area, the bristle-bearing side of the toothbrush head remains facing upward.

[0079] It should be further explained that, during the movement of the two fixing mechanisms 5 to the left, the clamping mechanism 8 on the right fixing mechanism 5 will drive the right moving block 623 to move synchronously. The movement of the moving block 623 will drive the hollow box 625 and the nozzle 626 on the support rod 624 to move, so that the toothbrush can be sprayed synchronously while rotating, ensuring that the outer surface of the toothbrush handle can be fully sprayed with the nano-coating. When the right moving block 623 moves to the limit block 622, it will no longer be able to move, and the clamping mechanism 8 will disengage from the moving block 623. At this time, the fixing mechanism 5 continues to move, and the hollow box 625 and the nozzle 626 will no longer be able to move, thereby avoiding the hollow box 625 from blocking the marking area. In the process of the left fixing mechanism 5 moving to the left, when the clamping mechanism 8 hits the left moving block 623, it will drive it to move synchronously. When the left moving block 623 moves to the left to its maximum stroke, the moving block 623 will no longer be able to move, and the left fixing mechanism 5 will also move a distance to the left. At this time, the interference block 82 will be squeezed by the moving block 623, move into the cavity of the linkage rod 81, and squeeze the return spring 83. When the left fixing mechanism 5 moves to the leftmost side, the interference block 82 is just located at the groove 627 on the moving block 623. Subsequently, under the reset force of the return spring 83, the interference block 82 is inserted into the groove 627. When the two fixing mechanisms 5 move to the right, since the interference block 82 on the left fixing mechanism 5 has been inserted into the groove 627 on the moving block 623, the left fixing mechanism 5 can drive the moving block 623 to move synchronously when it moves to the right. When the left moving block 623 moves to the limit block 622, it will be unable to move. Since the fixing mechanism 5 will continue to move to the right, the resistance block 82 will be squeezed and pressed into the cavity on the linkage rod 81, and then the resistance block 82 will disengage from the groove 627.

[0080] According to this operation, the two fixing mechanisms 5 are moved back and forth, and the toothbrush on one fixing mechanism 5 can be marked while the toothbrush on the other fixing mechanism 5 is loaded and unloaded. Nano coating can be sprayed during the movement to improve the quality of subsequent marking.

[0081] Please refer again Figure 11 The rotating mechanism 7 includes an electric push rod 71, which is fixedly connected to the top surface of the workbench 1. A servo motor 72 is fixedly installed on the telescopic end of the electric push rod 71. A fixed block 73 is fixedly connected to the output shaft of the servo motor 72, and the fixed block 73 is made of rubber.

[0082] In this embodiment, before the fixing mechanism 5 moves to the middle and prepares for marking, the electric push rod 71 is first activated, extending and driving the servo motor 72 and fixed block 73 to move, ensuring that the fixed block 73 is in close contact with the stopper 59. During the marking process, the servo motor 72 is activated to rotate the fixed block 73. Due to the close contact between the fixed block 73 and the stopper 59, the stopper 59 rotates, driving the hollow ring 53 connected to it to rotate as well. This in turn causes the toothbrush fixed within the hollow ring 53 to rotate, achieving full marking of the outer surface of the brush handle. After marking is completed, the electric push rod 71 is controlled to retract, separating the fixed block 73 from the stopper 59.

[0083] Secondly, please also refer to Figure 12 and Figure 13 The dust extraction mechanism 4 includes a dust extraction shell 41, which is fixedly connected to the top surface of the workbench 1 by a support rod. A negative pressure fan 42 is installed at the lower end of the dust extraction shell 41, and a filter plate 43 is inserted into the dust extraction shell 41 in a pull-out manner.

[0084] In this embodiment, during the spraying and marking processes, negative pressure blower 42 is activated, creating the necessary negative pressure within dust extraction housing 41. This negative pressure effectively draws smoke and dust generated during the marking process into dust extraction housing 41, while also removing scattered particles generated during the spraying process. The inhaled smoke and scattered particles are then further purified and blocked by filter plate 43.

[0085] It's worth noting that filter plate 43 consists of a frame and a filter. The filter is securely fastened to the frame, and the filter itself is composed of a filter screen and an activated carbon plate. When smoke passes through this filter screen and activated carbon plate, particulate matter and impurities are effectively trapped by the filter screen, while harmful gases in the smoke are purified by the activated carbon plate and safely discharged. At the same time, scattered particles are also trapped by the filter screen. After a period of use, filter plate 43 can be removed from dust extraction housing 41 for necessary cleaning or replacement to ensure the continued effective operation of the entire system.

[0086] The marking equipment 2, electric slide rail 3, negative pressure fan 42, nozzle 626, electric push rod 71 and servo motor 72 are all products currently available on the market. When selecting, you should try to choose one that meets the requirements of this application under the premise that the specifications and usage scenarios are suitable. The specific model specifications are not limited here.

[0087] The working principle of the present invention is:

[0088] Fixing and positioning: The electric toothbrush is fixed by inserting its handle into the hollow ring 53 of the fixing mechanism 5. The spring 54 and clamp 55 ensure the stability of the handle, and the position of the stopper 59 is controlled by adjusting the screw 58, thereby adjusting the insertion depth of the handle to ensure the consistency of the marking position.

[0089] Spraying nano-coating: Before laser marking, the spraying mechanism 6 transports the coating from the storage tank 61 to the spraying unit 62 through the infusion unit 63, and then evenly sprays it on the toothbrush handle through the nozzle 626 to optimize the optical properties, reduce the scattering of laser energy, and make the marking pattern clearer.

[0090] Rotation and Marking: Rotation mechanism 7 rotates the fixed toothbrush, ensuring that the outer surface of the brush handle can fully receive the marking operation of laser marking device 2. Servo motor 72 drives fixed block 73 to rotate, and through close contact with stopper 59, it drives hollow ring 53 and the toothbrush inside to rotate together.

[0091] Automated Process: The electric slide 3 allows the two fixtures 5 to move left and right, achieving a dual-station workflow. While one fixture 5 is marking a toothbrush, the other fixture 5 can simultaneously load and unload, improving efficiency. Furthermore, as the fixtures 5 move, the coupling mechanism 8 drives the spray unit 62 in sync, ensuring a comprehensive nanocoating application while the toothbrush rotates.

[0092] Environmental maintenance: The dust extraction mechanism 4 uses a negative pressure fan 42 to suck the smoke and dust generated during the marking process and the particles scattered during the spraying operation into the dust extraction housing 41, and purifies them through the filter plate 43 (including the filter screen and the activated carbon plate) to ensure the safety and cleanliness of the working environment.

[0093] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A laser marking device for electric toothbrush logos, characterized by: The machine comprises a workbench, the top surface of which is fixedly provided with a marking device for laser marking toothbrushes, and the top surface of the workbench is also provided with an electric slide rail and a dust extraction mechanism; Fixing mechanism: Both fixing mechanisms are arranged on the electric slide rail, and are used to fix the toothbrush to be processed. The fixing mechanism located on the side is in the loading and unloading machine position, and the fixing mechanism located in the middle is in the marking machine position; The spraying mechanism is arranged on the workbench and is used to spray the nano coating on the surface of the toothbrush to be processed when the fixing mechanism moves from the loading and unloading machine position to the marking machine position; The rotating mechanism is arranged on the workbench and is used to drive the marking toothbrush to rotate; A clamping mechanism, the clamping mechanism is arranged on the fixing mechanism; The spraying mechanism includes a storage box, which is fixedly connected to the workbench. A spraying part is also provided on the top surface of the workbench. An infusion part is connected between the spraying part and the storage box. Two linkage parts are provided on the infusion part. When the fixed mechanism moves from the loading and unloading machine position to the marking machine position, the spraying part can move a certain distance with the fixed mechanism through the clamping mechanism, and the infusion part is driven by the linkage part to operate the spraying part to perform the spraying operation; and when the fixed mechanism moves from the marking machine position to the loading and unloading machine position, the spraying part is reset and the spraying operation is stopped. The fixing mechanism includes a slider, which is slidably connected to the electric slide rail, a fixed ring fixedly connected to the slider, a hollow ring rotatably connected to the fixed ring through a bearing, clamping blocks are arranged in an annular pattern in the hollow ring, and a spring is fixedly connected between the clamping blocks and the hollow ring, a gear ring is fixedly sleeved on the outer wall of one end of the hollow ring, a sliding rod is further connected to one of the hollow rings, a stopper is slidably connected to the sliding rod, and the hollow ring is also fixedly rotatably connected to a screw, and the screw is threadedly connected to the stopper; The spraying part includes a slide rail, which is fixedly connected to the top surface of the workbench. The middle part of the slide rail is fixedly connected to a limit block. Two moving blocks are slidably connected to the slide rail. The moving blocks are fixedly connected to support rods. The support rods are fixedly connected to hollow boxes. The lower ends of the hollow boxes are connected to spray heads in an array. The moving blocks are provided with hemispherical grooves. The infusion part includes two hollow cylinders, both of which are fixedly connected to the top surface of the workbench; The linkage part includes a round rod, which is rotatably connected to the top surface of the workbench through a bearing. The lower end of the round rod is fixedly connected to a gear, and the upper end of the round rod is fixedly connected to a winding roller, and the winding roller is fixedly connected to a traction rope. The top surface of the workbench is also fixedly connected to a guide frame, and the traction rope passes through the guide frame. A moving rod is piston-type inserted at one end of the hollow cylinder, and one end of the moving rod located in the hollow cylinder is fixedly connected to a piston plate, and the other end of the moving rod is fixedly connected to the traction rope, and one side of the piston plate is fixedly connected to a compression spring, and the other end of the compression spring is fixedly connected to the inner wall of the hollow cylinder. A second rack is fixedly connected to the two fixing mechanisms by a support rod.

2. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The electric slide rail is connected with a first rack by a support rod, and teeth are arranged at both ends of the first rack, and the middle end is a plane.

3. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The dust extraction mechanism includes a dust extraction shell, which is fixedly connected to the top surface of the workbench by a support rod, and a negative pressure fan is installed at the lower end of the dust extraction shell. A filter plate is inserted in the dust extraction shell in a pull-out manner.

4. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The inner side of the clamp is covered with a highly elastic silicone layer.

5. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The hollow cylinder is connected with a first infusion tube and a second infusion tube, and the other end of the first infusion tube is communicated with the storage box, and the other end of the second infusion tube is communicated with the hollow box.

6. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The rotating mechanism includes an electric push rod, which is fixedly connected to the top surface of the workbench. A servo motor is fixedly installed on the telescopic end of the electric push rod. A fixed block is fixedly connected to the output shaft of the servo motor, and the fixed block is made of rubber.

7. The laser marking device for an electric toothbrush logo according to claim 1, characterized in that: The clamping mechanism comprises a linkage rod which is fixedly connected to the slider. A resistance block is slidably inserted into the cavity of the linkage rod. A reset spring is fixedly connected between the resistance block and the linkage rod.

Images