Laser engraving equipment for keycap processing

Abstract

The present invention discloses a laser engraving device for keycap processing, which relates to the field of laser engraving devices, including a chassis and a shell, wherein first tracks are provided on both sides of the top surface of the chassis, a first slider is slidably connected in the first track, a pressure strip is fixedly connected between the tail ends of the first slider, and the height of the bottom surface of the pressure strip is flush with the height of the middle position of the side of the keycap, a laser head is rotatably connected between two second sliders in the chassis, a rotating disk is rotatably connected to the side of the moving block away from the second slider, a ratchet rod is slidably connected in the rotating disk along the diameter direction, and a second ratchet tongue matched with the ratchet rod is provided inside. The moving block of the present invention pushes the second slider to slide, and the position and inclination of the laser head are adjusted by the mutual cooperation between the moving block and the second slider, so that the laser emitted by the laser head can accurately engrave the side of the keycap on the keyboard, effectively solving the problem that it is difficult to perform accurate laser laser engraving on the side of the keycap on the keyboard.

Description

Technical Field

[0001] The invention relates to the field of laser engraving equipment, in particular to laser engraving equipment for key cap processing. Background Art

[0002] Laser engraving is a method of using high-energy-density laser to locally irradiate the workpiece, vaporizing the surface material of the workpiece to expose the deeper material, so as to display the desired pattern and text, thereby leaving a permanent mark on the surface of the workpiece.

[0003] A Chinese patent with the related announcement number CN109909620B discloses an automatic laser engraving device, including a laser head arranged in a horizontal direction, which performs laser engraving on the side of a workpiece on a conveying device to avoid flipping, conveying and turnover of the workpiece during conveyance on the conveying device.

[0004] A Chinese patent with relevant announcement number CN111922516B discloses a multi-dimensional laser engraving device, including a mounting base and a fixing kit. Fixed flat openings are symmetrically provided on both sides of the mounting base, mounting slots are provided on the mounting base at both ends of the fixed flat openings, and the fixing kit is snap-connected to the mounting slots. Extended support blocks are symmetrically connected to the inner wall positions of the mounting base corresponding to the mounting slots, a fastening groove is provided at one end of the fixing kit, a top clamping block is fixedly connected to one end of the laser fixing frame, a through hole is provided at one end of the top clamping block, a laser head is installed in the through hole, and a clamping adjustment port is provided at the other end of the top clamping block.

[0005] In response to the above-mentioned related technologies, the keycaps on the existing keyboards have a solution of engraving numbers and letters by laser engraving, but the engraving surface of the laser engraving is generally the top surface of the keycap. When it is necessary to laser engrave the side of the keycap facing the user, it is necessary to adjust the angle of the laser head or adjust the inclination of the keyboard. However, since the spacing between adjacent keycaps on the keyboard is close, the light beam directed to the side of the keycap is easily blocked by the adjacent keycaps, affecting the quality of the laser engraving on the side of the keycap. In summary, it is not easy for the existing laser engraving equipment to laser engrave the side walls of the keycaps on the keyboard. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a laser engraving device for keycap processing to solve the technical problem that the existing laser engraving equipment is not easy to perform laser engraving on the side walls of the keycaps on the keyboard.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser engraving device for keycap processing, comprising a chassis and a shell, wherein first tracks are arranged on both sides of the top surface of the chassis, a first slider is slidably connected in the first track, a pressure strip is fixedly connected between the tail ends of the first slider, the height of the bottom surface of the pressure strip is flush with the height of the middle position of the side surface of the keycap, a second track and a third track parallel to each other are fixedly connected above the first track in the shell, a moving block is slidably connected in the second track, a second slider is slidably connected in the third track, a laser head is rotatably connected between the two second sliders in the chassis, and the rotating shaft of the laser head penetrates into the second slider and is fixedly connected The cam is connected to a driving gear, and the top surface of the second slider is fixedly connected to a second rack on one side of the driving gear. The bottom surface of the moving block is provided with a first rack that can mesh with the driving gear and a first ratchet that cooperates with the second rack. The moving block is rotatably connected to a turntable on the side away from the second slider. A ratchet rod is slidably connected to the turntable along the diameter direction, and a second ratchet that cooperates with the ratchet rod is provided inside. One end of the ratchet rod is rotatably connected to the head end of the first slider. The first ratchet is used to limit the sliding of the moving block in the direction away from the second slider, and the second ratchet is used to limit the sliding of the turntable in the direction away from the head end of the first slider. Both the first ratchet and the second ratchet can be electrically retracted.

[0008] By adopting the above technical solution, the moving block pushes the second slider to slide, and the position and inclination of the laser head are adjusted through the mutual cooperation between the moving block and the second slider. After the laser head is adjusted, the pressure bar presses down the keycaps on the keyboard in turn during the reverse sliding of the second slider, so that the laser emitted by the laser head can accurately engrave the sides of the keycaps on the keyboard, effectively solving the problem that it is difficult to perform accurate laser engraving on the sides of the keycaps on the keyboard.

[0009] The present invention is further configured such that a first spring for returning the first slider to its original position is provided between the first slider and the inner wall of the first track.

[0010] By adopting the above technical solution, after the second ratchet tongue is released from contact with the ratchet rod, the elastic potential energy accumulated when the first spring is compressed is used to push the first slider to reset.

[0011] The present invention is further configured such that at least one push piece is rotatably connected to the back of the pressure strip, the bottom end of the push piece is lower than the bottom surface of the pressure strip, and the height at which the rotating shaft of the push piece is arranged is higher than the bottom surface of the pressure strip.

[0012] By adopting the above technical solution, the keyboard body after laser engraving is pushed out during the resetting process of the first sliding block.

[0013] The present invention is further configured such that an air inlet is provided on a side of the pressure strip facing the key cap, and an air joint communicating with the air inlet is connected to one side of the pressure strip.

[0014] By adopting the above technical solution, the waste gas generated during the laser engraving process is sucked out by utilizing the negative pressure at the air intake port.

[0015] The present invention is further configured such that a baffle is disposed on the top surface of the chassis, and a clamping block capable of sliding in a direction orthogonal to the first track is disposed on one side of the baffle.

[0016] By adopting the above technical solution, the keyboard body is blocked by the blocking bar, and then the keyboard body is positioned and clamped by the clamping block.

[0017] The present invention is further configured such that a push block is provided on a side of the moving block that slides toward the second slider, a magnet for adsorbing the second slider is provided on the push block in the direction toward the second slider, and a second spring is provided in the sliding track of the push block within the moving block.

[0018] By adopting the above technical solution, the magnetic attraction between the push block and the second slider can pull the second slider to reset.

[0019] The present invention is further configured such that a driving structure for driving the moving block to slide is provided in the second track.

[0020] By adopting the above technical solution, the driving structure in the second track is used to drive the moving block to slide.

[0021] The present invention is further configured such that both ends of the second track are fixed to the inner wall of the shell, and are connected to the third track close to each other through a bracket structure, and the bracket structure between the second track and the third track will not affect the normal sliding of the moving block and the second slider.

[0022] By adopting the above technical solution, the normal sliding of the sliding assembly in the device will not be affected while the second rail and the third rail are fixed.

[0023] The present invention is further configured such that the first rack is meshed with the driving gear only after the second sliding block slides to the head end of the third track, and the first ratchet tongue is engaged with the second rack.

[0024] By adopting the above technical solution, the second slider is first pushed to the head end in the third track, and then the angle of the laser head is adjusted.

[0025] In summary, the present invention mainly has the following beneficial effects:

[0026] 1. The present invention uses a moving block to push the second slider to slide, and the moving block and the second slider cooperate with each other to adjust the position and inclination of the laser head. After the laser head is adjusted, the pressure strip presses down the keycaps on the keyboard in sequence during the reverse sliding of the second slider, so that the laser emitted by the laser head can accurately engrave the side of the keycaps on the keyboard, effectively solving the problem that it is difficult to perform accurate laser engraving on the side of the keycaps on the keyboard;

[0027] 2. The present invention arranges a push-piece structure on the back of the pressure strip by rotation. When the pressure strip presses down all the keycaps on the keyboard in sequence and the laser engraving work on the side of the keycap is completed, the first slider continues to move toward the tail end of the first track until the push-piece contacts the side of the keyboard. The elastic potential energy accumulated by the first spring is released, so that the pressure strip slides toward the head end of the first track, and the keyboard after laser engraving is pushed out, which is convenient for the staff to take it out. At the same time, the pressure strip can be quickly reset, which is convenient for the laser engraving work of the next keyboard.

[0028] 3. An air inlet is set along the length direction of the end of the pressure strip facing the keyboard. Since the air inlet is close to the position of the laser engraving on the keycap, it can collect the waste gas generated during the laser engraving process on the side of the keyboard, effectively preventing the waste gas generated during the laser engraving process from leaking out;

[0029] 4. The push block in the moving block pushes the second slider to slide. When the second slider slides to the front end of the third track, the moving block continues to move in the second track. The elastic force generated by the compression of the first spring in the moving block can further improve the stability of the cooperation between the first ratchet tongue and the second rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 It is a three-dimensional view of the interior of the housing of the present invention;

[0032] Figure 3 For the present invention Figure 2 A magnified view of middle;

[0033] Figure 4 For the present invention Figure 2 Enlarged view of middle B;

[0034] Figure 5 Another perspective view of the interior of the housing of the present invention;

[0035] Figure 6 For the present invention Figure 5 Enlarged view of middle C;

[0036] Figure 7 For the present invention Figure 5 Enlarged view of middle D;

[0037] Figure 8 A three-dimensional view of the interior of the housing when the moving block of the present invention moves to the front end of the second track;

[0038] Fig. 9 For the present invention Figure 8 Enlarged view of E in the middle;

[0039] Fig.10 It is a three-dimensional diagram of the second track and the moving block structure of the present invention;

[0040] Fig.11 This is a diagram showing the ratchet rod of the present invention passing through the internal state of the rotating disk.

[0041] In the figure: 1, chassis; 2, shell; 3, first track; 4, second track; 5, third track; 6, laser head; 7, pressure strip; 8, first slider; 9, first spring; 10, air inlet; 11, air joint; 12, moving block; 13, second spring; 14, push block; 15, first ratchet; 16, first rack; 17, second rack; 18, driving gear; 19, second slider; 20, turntable; 21, ratchet rod; 22, second ratchet; 23, stop bar; 24, clamping block; 25, push piece; 26, keyboard body. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The following describes an embodiment of the present invention based on its overall structure.

[0044] Embodiment 1

[0045] A laser engraving device for keycap processing, such as Figure 1-11As shown, it includes a chassis 1 and a shell 2, one end of the shell 2 is provided with an opening for taking and placing a keyboard body 26, first tracks 3 are provided on both sides of the top surface of the chassis 1, a first slider 8 is slidably connected in the first track 3, a pressure strip 7 is fixedly connected between the tail ends of the first slider 8, and the height of the bottom surface of the pressure strip 7 is flush with the height of the middle position of the side surface of the keycap. Specifically, during the movement of the pressure strip 7 toward the keyboard body 26, the pressure strip 7 contacts the side surface of the keycap on the keyboard body 26. As the pressure strip 7 continues to slide toward the keyboard body 26, the keycap is pressed down by an oblique downward force. With the continuous movement of the pressure strip 7, the keycaps can be pressed down row by row in sequence, and the shell 28 is pressed down. A second track 4 and a third track 5 are fixedly connected to each other above the first track 3 in the body 2, a moving block 12 is slidably connected in the second track 4, and a second slider 19 is slidably connected in the third track 5. A laser head 6 is rotatably connected between the two second sliders 19 in the chassis 1, and the rotating shaft of the laser head 6 penetrates into the second slider 19 and is fixedly connected to a driving gear 18. The top surface of the second slider 19 is fixedly connected to a second rack 17 on one side of the driving gear 18. Specifically, the second rack 17 is a ratchet rack, and the bottom surface of the moving block 12 is provided with a first rack 16 that can mesh with the driving gear 18 and a first ratchet tongue 15 that cooperates with the second rack 17.

[0046] See also Figure 1-11 The side of the moving block 12 away from the second slider 19 is rotatably connected to a turntable 20, a ratchet rod 21 is slidably connected in the diameter direction of the turntable 20, and a second ratchet tongue 22 cooperating with the ratchet rod 21 is arranged inside, one end of the ratchet rod 21 is rotatably connected to the head end of the first slider 8, the first ratchet tongue 15 is used to limit the sliding of the moving block 12 in the direction away from the second slider 19, and the second ratchet tongue 22 is used to limit the sliding of the turntable 20 away from the head end of the first slider 8, the first ratchet tongue 15 and the second ratchet tongue 22 can be electrically retracted, specifically, when the push piece 25 is released to the side of the rear end of the keyboard body 26, the second ratchet tongue 2 The electromagnet at 2 is energized to disengage the second ratchet tongue 22 from the ratchet rod 21, and the first slider 8 slides and resets under the push of the first spring 9, while the keyboard body 26 is pushed out. The laser head 6 has completed the laser engraving of the keyboard body 26 before it moves to the top of the keyboard body 26. The moving block 12 continues to slide in the opposite direction, and the first ratchet tongue 15 disengages from the second rack 17. Under the action of the magnet on the push block 14, the second slider 19 is pulled and reset, and the first rack 16 and the driving gear 18 disengage from each other. The laser head 6 rotates and resets under its own gravity, so that the laser head 6 faces directly downward.

[0047] See also Figure 2-7, 10-11, a push block 14 is provided on a side of the moving block 12 that slides toward the second sliding block 19, and a magnet for adsorbing the second sliding block 19 is provided on the push block 14 in the direction toward the second sliding block 19. Specifically, after the magnet on the push block 14 adsorbs the second sliding block 19, the stability of the contact with the second sliding block 19 can be further improved, and in the process of the reverse movement of the moving block 12, after the first ratchet 15 is no longer in contact with the second rack 17, the second sliding block 19 can be pulled to reset as the moving block 12 continues to move in the reverse direction. After the second sliding block 19 is reset, the laser head 6 faces the center of the keyboard body 26, and a second spring 13 is provided in the sliding track of the push block 14 in the moving block 12. The push block 14 is used to push the second sliding block 19 to slide. At the same time, in the process of the reverse movement of the moving block 12, the magnetic attraction between the push block 14 and the second sliding block 19 can pull the second sliding block 19 to reset. A driving structure for driving the moving block 12 to slide is provided in the second track 4, and the driving structure in the second track 4 is used to drive the moving block 12 to slide.

[0048] See also Figure 2-7 Both ends of the second track 4 are fixed to the inner wall of the shell 2, and are connected to the third track 5 close to each other through a bracket structure. The bracket structure between the second track 4 and the third track 5 will not affect the normal sliding of the moving block 12 and the second slider 19. While fixing the second track 4 and the third track 5, it will not affect the normal sliding of the sliding assembly in the device. After the second slider 19 slides to the head end of the third track 5, the first rack 16 will engage with the driving gear 18, and at the same time, the first ratchet 15 and the second rack 17 will be engaged. First, the second slider 19 is pushed to the head end of the third track 5, and then the angle of the laser head 6 is adjusted. A first spring 9 for resetting the first slider 8 is arranged between the first slider 8 and the inner wall of the first track 3. After the second ratchet 22 releases the contact with the ratchet rod 21, the elastic potential energy accumulated when the first spring 9 is compressed is used to push the first slider 8 to reset.

[0049] See also Figure 5-7 A baffle 23 is provided on the top surface of the chassis 1, and a clamping block 24 that can slide in a direction orthogonal to the first track 3 is provided on one side of the baffle 23. Specifically, there are two baffles 23, which are equidistantly arranged between the first tracks 3. After the keyboard body 26 that needs laser engraving is placed in the chassis 1, the keyboard body 26 is pushed so that its side is close to the baffle 23, and then the clamping block 24 sliding in opposite directions pushes the keyboard body 26 to position in the length direction and clamps the keyboard body 26, and the baffle 23 is used to block the keyboard body 26, and then the clamping block 24 is used to position the keyboard body 26 and clamp the keyboard body 26 at the same time, and the clamping block 24 can be specifically driven by an electric push rod or a threaded screw. In the prior art, there is a solution for making the clamping block 24 move in opposite directions to clamp objects, which will not be repeated here.

[0050] Embodiment 2

[0051] A laser engraving device for keycap processing, such as Figure 1-11 As shown, on the basis of Example 1, the difference from Example 1 is that the back of the pressure strip 7 is rotatably connected to at least one push piece 25. Specifically, in this embodiment, two push pieces 25 are preferably provided, and they are staggered with the blocking strip 23. The bottom end of the push piece 25 is lower than the bottom surface of the pressure strip 7, and the height of the rotating shaft of the push piece 25 is higher than the bottom surface of the pressure strip 7. When the pressure strip 7 slides toward the keyboard body 26, the keycap is pressed down. When the push piece 25 contacts the keycap or the keyboard body 26, since the push piece 25 can rotate upward freely, it will not affect the normal movement of the pressure strip 7. When the pressure strip 7 moves to a position close to the tail end of the first track 3, after the pressure strip 7 is out of contact with the keyboard body 26, the bottom end of the push piece 25 can contact the side wall of the keyboard, and the keyboard body 26 after laser engraving is pushed out during the resetting process of the first slider 8.

[0052] Embodiment 3

[0053] A laser engraving device for keycap processing, such as Figure 1-11 As shown, on the basis of Example 2, the difference from Example 2 lies in that an air intake port 10 is provided on the side of the pressure strip 7 facing the keycap, and an air joint 11 connected to the air intake port 10 is connected to one side of the pressure strip 7. Specifically, the air joint 11 is connected to the ventilation pipeline of the vacuum exhaust gas treatment equipment, and the negative pressure at the air intake port 10 is used to remove the exhaust gas generated in the laser engraving process. In the process that the pressure strip 7 presses down the keycaps on the keyboard body 26 in turn, the air intake port 10 moves with the engraving position of the laser, thereby achieving sufficient collection of the exhaust gas.

[0054] The working principle of the present invention is as follows: the keyboard body 26 is placed on top of the chassis 1, and the clamping structure on top of the chassis 1 positions and clamps the keyboard body 26. The moving block 12 is driven by the driving structure to slide toward the head end of the second track 4. During this process, the ratchet rod 21 contacts the second ratchet tongue 22, and the turntable 20 slides near the head end of the first slider 8 in the length direction of the ratchet rod 21. When the push block 14 contacts the second slider 19, as the moving block 12 continues to slide, the push block 14 can push the second slider 19 to move toward the head end of the third track 5. When the second slider 19 slides to the head end of the third track 5, the push block 14 remains stationary relative to the second slider 19, while the moving block 12 continues to slide, and at the same time, the second spring 13 in the moving block 12 is compressed. The first rack 16 is meshed with the driving gear 18 to allow the laser head 6 to rotate to adjust the angle, and the first ratchet 15 slides unimpeded on the second rack 17 until the angle of the laser head 6 is adjusted to the right position. The driving structure in the second track 4 drives the moving block 12 to slide in the opposite direction. At this time, the second ratchet 22 in the turntable 20 is engaged with the ratchet rod 21 to prevent the ratchet rod 21 and the turntable 20 from sliding relative to each other, and the first ratchet 15 is engaged with the second rack 17 to prevent the second slider 19 and the moving block 12 from sliding relative to each other. As the moving block 12 slides in the opposite direction, the pressure strip 7 moves toward the keyboard body 26 together with the laser head 6, and the pressure strip 7 presses down the keycaps on the keyboard body 26 in turn, so that the laser head 6 can perform precise laser engraving on the side of the keycaps.

[0055] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A laser engraving device for keycap processing, comprising a chassis (1) and a housing (2), characterized in that: A first track (3) is provided on both sides of the top surface of the chassis (1), a first slider (8) is slidably connected in the first track (3), a pressure strip (7) is fixedly connected between the tail ends of the first slider (8), and the bottom surface of the pressure strip (7) is flush with the height of the middle position of the side surface of the key cap, a second track (4) and a third track (5) are fixedly connected above the first track (3) in the shell (2), a moving block (12) is slidably connected in the second track (4), and a second slider (19) is slidably connected in the third track (5), a laser head (6) is rotatably connected between the two second sliders (19) in the chassis (1), a rotating shaft of the laser head (6) penetrates into the second slider (19) and is fixedly connected to a driving gear (18), and the top surface of the second slider (19) is fixedly connected to one side of the driving gear (18) A second rack (17) is provided, and the bottom surface of the moving block (12) is provided with a first rack (16) capable of meshing with a driving gear (18) and a first ratchet (15) matched with the second rack (17); the moving block (12) is rotatably connected to a turntable (20) on the side away from the second slider (19); a ratchet rod (21) is slidably connected inside the turntable (20) along the diameter direction, and a second ratchet (22) matched with the ratchet rod (21) is provided inside; one end of the ratchet rod (21) is rotatably connected to the head end of the first slider (8); the first ratchet (15) is used to limit the sliding of the moving block (12) in the direction away from the second slider (19); the second ratchet (22) is used to limit the sliding of the turntable (20) in the direction away from the head end of the first slider (8); and both the first ratchet (15) and the second ratchet (22) can be electrically retracted.

2. The laser engraving device for keycap processing according to claim 1, characterized in that: A first spring (9) for returning the first slider (8) to its original position is arranged between the first slider (8) and the inner wall of the first track (3).

3. The laser engraving device for keycap processing according to claim 2, characterized in that: The back side of the pressure strip (7) is rotatably connected with at least one push piece (25), the bottom end of the push piece (25) is lower than the bottom surface of the pressure strip (7), and the height at which the rotation axis of the push piece (25) is arranged is higher than the bottom surface of the pressure strip (7).

4. The laser engraving device for keycap processing according to claim 1, characterized in that: An air inlet (10) is provided on one side of the pressure strip (7) facing the key cap, and an air joint (11) connected to the air inlet (10) is connected to one side of the pressure strip (7).

5. The laser engraving device for keycap processing according to claim 1, characterized in that: A baffle (23) is provided on the top surface of the chassis (1), and a clamping block (24) capable of sliding in a direction orthogonal to the first track (3) is provided on one side of the baffle (23).

6. The laser engraving device for keycap processing according to claim 1, characterized in that: A push block (14) is provided on one side of the moving block (12) so as to slide toward the second slider (19); a magnet for adsorbing the second slider (19) is provided on the push block (14) in the direction toward the second slider (19); and a second spring (13) is provided in the sliding track of the push block (14) in the moving block (12).

7. The laser engraving device for keycap processing according to claim 1, characterized in that: A driving structure for driving the moving block (12) to slide is arranged in the second track (4).

8. The laser engraving device for keycap processing according to claim 1, characterized in that: Both ends of the second track (4) are fixed to the inner wall of the shell (2), and are connected to the third track (5) which is close to each other through a bracket structure. The bracket structure between the second track (4) and the third track (5) will not affect the normal sliding of the moving block (12) and the second sliding block (19).

9. The laser engraving device for keycap processing according to claim 1, characterized in that: After the second sliding block (19) slides to the head end of the third track (5), the first rack (16) will mesh with the driving gear (18), and at the same time, the first ratchet tongue (15) will be engaged with the second rack (17).

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