A laser etching and marking device for processing aluminum electrolytic capacitors

Abstract

The application discloses a laser etching and marking device for processing of aluminum electrolytic capacitors and relates to the technical field of laser etching. The turnover driving mechanism is used to drive the conical roller to rotate by power, so that the aluminum electrolytic capacitor is turned over by the friction force, the laser beam can form a vertical projection relationship with the surface of the aluminum electrolytic capacitor in real time, the etching depth is uniform, the line width is consistent, the etching mark quality is improved, the dust collecting assembly is arranged, the driving shaft II is used to drive the smoke dust suction assembly to operate, suction force is formed around the long suction nozzle, the small particles falling from the capacitor surface during the laser etching process are sucked into the smoke dust suction assembly for filtration, the falling etching dust can be prevented from polluting the capacitor, and the dust can be prevented from entering the air to harm the respiratory health of workers.

Description

Technical Field

[0001] This invention relates to the field of laser etching technology, specifically to a laser etching and marking device for processing aluminum electrolytic capacitors. Background Technology

[0002] In the processing of aluminum electrolytic capacitors, laser etching and marking technology is mainly used to engrave marking information on the outer sleeve or shell of the capacitor, such as the manufacturer's logo, rated working voltage, capacity, working temperature, positive and negative polarity markings, etc.

[0003] Referring to a method for laser marking plastic bottle caps disclosed in patent application CN105855713B, a laser beam emitted from a laser marking machine is directly applied to the top plate of the plastic bottle cap, etching a laser-etched layer capable of storing product information onto the top plate. This laser-etched layer is a raised QR code pattern formed on the top plate by the laser beam etching. Therefore, there is no need to apply an adhesive layer or a gasket layer inside the plastic bottle cap. The QR code pattern etched by the laser marking machine is an integral structure with the top plate. Even if the drinking liquid inside the bottle comes into direct contact with the QR code pattern during use, there is no need to worry about harm to human health, making it very safe.

[0004] The laser marking equipment in the prior art described above has the following drawbacks in practical use:

[0005] When marking products with cylindrical structures, since the outer surface of the cylindrical structure is curved, if it is fixed, the laser can only hit a certain point on the outer surface of the cylindrical structure. It is difficult to maintain the perpendicular projection relationship between the laser beam and the workpiece surface. Fluctuations in the incident angle cause problems such as uneven marking depth and poor line width consistency, ultimately resulting in unstable marking quality and insufficient precision, leading to deformation of the laser etching mark.

[0006] When a laser beam strikes the surface of a workpiece, the material instantly vaporizes, and the resulting tiny molten particles cool and form fine dust. This dust, when it adheres to the workpiece surface, not only affects its appearance but also poses a safety hazard for subsequent use.

[0007] Therefore, the present invention proposes a laser etching and marking device for processing aluminum electrolytic capacitors to solve the above problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a laser etching and marking device for processing aluminum electrolytic capacitors. This device solves the problems of existing laser etching and marking devices when marking cylindrical products. Because the outer surface of a cylindrical product is curved, the laser can only strike a single point on the surface, making it difficult to maintain a perpendicular projection relationship between the laser beam and the workpiece surface. This easily leads to uneven etching depth and deformation of the laser-etched marks. Furthermore, when the laser beam acts on the workpiece surface, the material instantly vaporizes, and the resulting tiny molten particles cool and form fine dust. This dust adheres to the workpiece surface, affecting its aesthetics and posing safety hazards for subsequent use.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a laser etching and marking device for processing aluminum electrolytic capacitors, comprising laser etching and a laser marking head disposed on top of the laser etching, and further comprising:

[0010] The conveying mechanism is located below the laser marking head and connected to the top of the laser etching via a mounting bracket. It is used to convey the aluminum electrolytic capacitor to be marked to the etching and marking position below the laser marking head.

[0011] Multiple capacitor transfer mechanisms are evenly arranged on the outer surface of the conveying mechanism. They are used to simulate and lift the aluminum electrolytic capacitor to be marked after conforming to its shape. During the marking process, the aluminum electrolytic capacitor is flipped simultaneously to complete the operation of the laser marking head to uniformly mark the arc-shaped outer wall of the aluminum electrolytic capacitor. While flipping the aluminum electrolytic capacitor, the capacitor transfer mechanism sucks up the smoke and dust generated by the laser marking to keep the surface of the aluminum electrolytic capacitor clean.

[0012] The drive block assembly is located on the top side of the conveying mechanism and is used to assist the capacitor transfer mechanism in completing the contour lifting action of the aluminum electrolytic capacitor.

[0013] The flipping drive mechanism is located on the top side of the laser etching and is used in conjunction with the drive block assembly to complete the contour clamping of the aluminum electrolytic capacitor and at the same time provide power for the flipping of the aluminum electrolytic capacitor.

[0014] Furthermore, the drive block assembly includes a vertical plate fixedly mounted on the top of the conveying mechanism and located directly in front of the laser marking head, and an arc-shaped protrusion is fixedly mounted on the side wall of the vertical plate near the laser marking head.

[0015] Furthermore, the flipping drive mechanism includes a support frame fixedly mounted on the top of the laser etching head and located directly behind the laser marking head. A servo motor and an electric push rod are fixedly mounted on the upper and lower sides of the side wall of the support frame, respectively. The output shaft of the servo motor rotates through the support frame and is fixedly mounted on a cross-shaped transmission shaft. A second sliding sleeve is slidably fitted on the outer wall of the cross-shaped transmission shaft. A second friction disc is also fixedly mounted at the end of the second sliding sleeve away from the cross-shaped transmission shaft. The output end of the electric push rod slides through the support frame and is connected to the second sliding sleeve through a connecting rod.

[0016] Furthermore, the conveying mechanism includes a conveying bracket and gears rotatably disposed on both sides inside the conveying bracket. A first toothed belt is fitted on the outer wall of the two gears. A support plate is also fixedly disposed on the inner wall of the conveying bracket below the first toothed belt. The top of the support plate has a lifting groove adapted to the structure of the first toothed belt. The first toothed belt is slidably disposed in the lifting groove.

[0017] Furthermore, the capacitor transfer mechanism includes a base detachably mounted on the top of the conveying mechanism. Two rollers are rotatably mounted on both sides of the base. A contouring limiting component for contouring and lifting the aluminum electrolytic capacitor is mounted on the top of the base. A flipping component for shielding the internal space of the contouring limiting component to prevent etching dust from scattering is mounted on the top of the contouring limiting component. A positioning component is also mounted on the side of the contouring limiting component near the drive block component. When the drive block component and the contouring limiting component meet, they can push one end of the positioning component to move a fixed distance.

[0018] The positioning component includes a side plate fixedly mounted on the outer wall of the contour limiting component. A first sliding sleeve slides through the inside of the side plate. A clamping arm is slidably mounted inside the first sliding sleeve. The clamping arm and the first sliding sleeve are locked in position by fastening bolts. A first friction plate is also fixedly mounted at the end of the clamping arm away from the side plate. Multiple balls are rotatably mounted on the outer wall of the first friction plate. A hemispherical protrusion is fixedly mounted at the end of the first sliding sleeve away from the clamping arm. A spring is slidably mounted on the outer wall of the first sliding sleeve between the side plate and the hemispherical protrusion.

[0019] Furthermore, the contouring limiting component includes a mounting box and sliding grooves on both sides of the outer wall of the mounting box. Two through grooves are opened on both sides of the side wall of the mounting box. A guide post is fixedly installed inside each through groove. A spring is slidably sleeved on the outer wall of the guide post. Mounting seat one and mounting seat two are fixedly installed on both sides of the interior of the mounting box. Multiple lifting grooves are opened on the top of mounting seat one and mounting seat two. A contouring lifting unit is movably installed in the two lifting grooves at opposite positions of mounting seat one and mounting seat two. Multiple contouring lifting units can lock the height of the top or unlock it through locking component one and locking component two to readjust the height of the top.

[0020] The contour lifting unit includes lifting columns that are slidably disposed in lifting grooves at opposite positions within mounting base one and mounting base two. Long roller shafts are rotatably disposed on the opposite side walls of the two lifting columns. A second spring is fixedly disposed at the bottom end of the lifting column and inside the lifting groove at the corresponding position. A limit tooth plate is fixedly disposed on the outer wall of the lifting column near the first locking component.

[0021] Furthermore, the No. 1 locking assembly and the No. 2 locking assembly have the same structure. The No. 1 locking assembly includes a long box that is detachably mounted on one side wall of the mounting base by bolts. A long slider is slidably mounted inside the long box. On the outer wall of the long slider near the mounting base, there are racks that correspond one-to-one with the positions of multiple limiting tooth plates. Each rack slides through the long box and extends into the interior of the lifting groove. The locking or unlocking operation of the lifting column is completed by the engagement or disengagement of the racks and the corresponding upper limiting tooth plates. An L-shaped push-pull arm is also fixedly mounted on the side wall of the long slider. The L-shaped push-pull arm slides through the long box and extends to the outside.

[0022] Furthermore, the flipping assembly includes an etching protective cover and long sliders fixedly disposed on both sides of the inner wall of the etching protective cover. The top of the etching protective cover is provided with an obstacle passage for the laser beam to pass through, and the interior of the etching protective cover is provided with a dust collection assembly for collecting laser etching dust and a flipping execution assembly for driving the aluminum electrolytic capacitor to flip.

[0023] The dust collection assembly includes long suction nozzles fixedly mounted on both sides of the inner wall of the etching protective cover via a mounting bracket, and a smoke suction assembly for sucking up etching dust is also provided on one side of the two long suction nozzles. The smoke suction assembly and the two long suction nozzles are connected by a pipe.

[0024] Furthermore, the dust extraction assembly includes a dust collection cylinder and an air inlet pipe fixedly installed on the top of the dust collection cylinder and connected to its interior. A gearbox is fixedly installed at one end of the dust collection cylinder, a gear 2 is fixedly sleeved at the input end of the gearbox, and the output pipe of the gearbox rotates through the dust collection cylinder and is fixedly installed with a fan blade. A filter element for filtering etched dust is detachably installed on the side of the dust collection cylinder away from the fan blade through a limiting bracket.

[0025] Furthermore, the flipping execution component includes a second horizontal plate and a first horizontal plate disposed on the inner and outer sides of the etching protective cover. Drive shaft one and drive shaft two are rotatably disposed on the inner sides of the second horizontal plate and the first horizontal plate. A conical roller is fixedly disposed at one end of the first and the second drive shafts located on the etching protective cover. A third spring is slidably sleeved on the outer wall of the first and the second drive shafts located between the first horizontal plate and the etching protective cover. A friction disc is fixedly disposed at the end of the second drive shaft away from the conical roller. A gear three is also fixedly sleeved on the outer wall of the second drive shaft located inside the etching protective cover. A second toothed belt is sleeved on the outer wall of the third and the second gear.

[0026] This invention provides a laser etching and marking device for processing aluminum electrolytic capacitors. Compared with the prior art, it has the following advantages:

[0027] 1. A laser etching and marking device for processing aluminum electrolytic capacitors, comprising a capacitor transfer mechanism, which uses an internal contouring and limiting component to simulate the shape of aluminum electrolytic capacitors of different sizes. This allows the tops of multiple long rollers to form an arc shape that matches the outer contour of the aluminum electrolytic capacitor, thus stably supporting the capacitor and preventing positional shifts during laser etching. It also lays the foundation for the flipping etching operation of the aluminum electrolytic capacitor. Furthermore, the contouring and limiting component can provide contour support for cylindrical capacitors of different sizes, and the multiple long rollers together create a flat top support surface, enabling the support of capacitors with regular planar shapes. This expands the applicability. Moreover, the simulated contouring and lifting process only requires pressing down on the target capacitor to form the contour shape of the multiple long rollers, making the contouring operation simple and easy to operate.

[0028] 2. A laser etching and marking device for processing aluminum electrolytic capacitors, by setting a first locking component and a second locking component, can control the directional movement of a long slider by manually pressing the L-shaped push-pull arms on both sides, so that the rack can disengage from the corresponding limiting tooth plate, releasing the position lock of the lifting column. This allows the lifting column to move freely downward when pressure is applied to the top of the long roller shaft, thereby providing support for multiple long roller shafts to achieve various contour shapes. Moreover, after releasing the two L-shaped push-pull arms, the long slider can immediately reset, so that the rack can engage with the corresponding limiting tooth plate, completing the rapid locking of the lifting column position, which greatly improves the speed of capacitor simulation contouring.

[0029] 3. A laser etching and marking device for processing aluminum electrolytic capacitors, which, by setting a flipping component and a flipping drive mechanism, can use the power of the flipping drive mechanism to drive the conical roller to rotate, thereby using the friction force to drive the aluminum electrolytic capacitor to flip, so that the laser beam can form a vertical projection relationship with the surface of the aluminum electrolytic capacitor in real time, ensuring uniform laser etching depth and consistent line width, thereby improving the quality of etching marks. Furthermore, by setting two conical rollers, it can achieve clamping and limiting on both sides of the aluminum electrolytic capacitor, and each conical roller can rotate relative to the capacitor, thereby preventing positional displacement of the capacitor during the flipping process while ensuring normal flipping of the capacitor, and ensuring that the etched marks will not be deformed.

[0030] 4. A laser etching and marking device for processing aluminum electrolytic capacitors, which, by setting up a dust collection component, can drive the dust extraction component to operate by using the power of the rotation of the drive shaft, thereby forming a suction force around the long suction nozzle, so that the tiny particles that fall off the surface of the capacitor during laser etching are sucked into the dust extraction component for filtration. This not only prevents the falling etching dust from contaminating the capacitor, but also prevents the dust from entering the air and harming the respiratory health of the workers. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 A magnified structural diagram of part A in the diagram;

[0033] Figure 3 For the present invention Figure 1 A magnified structural diagram of part B in the diagram;

[0034] Figure 4 This is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the flipping drive mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the capacitor transfer mechanism of the present invention;

[0037] Figure 7 This is a schematic diagram of the first disassembled state of the capacitor transfer mechanism of the present invention;

[0038] Figure 8 This is a schematic diagram of the second disassembled state structure of the capacitor transfer mechanism of the present invention;

[0039] Figure 9 For the present invention Figure 8 A magnified structural diagram of part C in the diagram;

[0040] Figure 10 This is a schematic diagram of the exploded state structure of the contour-following limiting component of the present invention;

[0041] Figure 11 For the present invention Figure 10 A magnified structural diagram of part D in the diagram;

[0042] Figure 12 For the present invention Figure 10 A magnified structural diagram of part E in the diagram;

[0043] Figure 13 This is a schematic diagram of the shape-following limiting component of the present invention with the mounting box removed.

[0044] Figure 14 For the present invention Figure 13 A magnified structural diagram of part F in the diagram;

[0045] Figure 15 This is a cross-sectional view of the flipping component of the present invention;

[0046] Figure 16 This is a schematic diagram of the first state structure of the flipping component of the present invention after removing the etched protective cover;

[0047] Figure 17 This is a schematic diagram of the second state structure of the flipping component of the present invention after removing the etched protective cover;

[0048] Figure 18 For the present invention Figure 17 A magnified structural diagram of part G in the diagram;

[0049] Figure 19 This is a cross-sectional view of the smoke and dust extraction component of the present invention.

[0050] In the diagram: 1. Laser etching frame; 2. Laser marking head; 3. Conveying mechanism; 31. Conveying bracket; 32. Gear 1; 33. Gear belt with tooth 1; 34. Pallet; 4. Capacitor transfer mechanism; 41. Base; 42. Roller; 43. Contouring limit assembly; 431. Mounting box; 432. Slide groove; 433. Through groove; 434. Guide post; 435. Spring 1; 436. Mounting base 1; 437. Mounting base 2; 438, Lifting groove; 439, Lifting column; 4310, Long roller shaft; 4311, No. 2 spring; 4312, Limiting toothed plate; 4313, No. 1 locking assembly; a1, Long box body; a2, Long strip slider; a3, Rack; a4, L-shaped push-pull arm; 4314, No. 2 locking assembly; 44, Flipping assembly; 441, Etched protective cover; 442, Clearance groove; 443, Smoke and dust extraction assembly; b1. Dust collection bin; b2. Air inlet pipe; b3. Gearbox; b4. Gear 2; b5. Fan blade; b6. Filter element; 444. Mounting bracket; 445. Long suction nozzle; 446. Horizontal plate 1; 447. Horizontal plate 2; 448. Drive shaft 1; 449. Drive shaft 2; 4410. Conical roller; 4411. Spring 3; 4412. Friction disc 1; 4413. Gear 3; 4414. Gear 2 45. Belt; 451. Positioning assembly; 452. Side plate; 453. No. 1 sliding sleeve; 454. Clamping arm; 455. No. 1 friction plate; 456. Scale groove; 457. Hemispherical protrusion; 458. Spring; 5. Vertical plate; 6. Arc-shaped protrusion; 79. Flipping drive mechanism; 70. Support frame; 71. Electric push rod; 72. Servo motor; 73. Cross-shaped drive shaft; 74. No. 2 sliding sleeve; 75. No. 2 friction disc. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] This invention provides three technical solutions: a laser etching and marking device for processing aluminum electrolytic capacitors, specifically including the following embodiments:

[0053] like Figures 1-5 The first embodiment is shown: a laser etching and marking apparatus for processing aluminum electrolytic capacitors, including a laser etching frame 1 and a laser marking head 2 disposed on top of the laser etching frame 1, and further comprising:

[0054] The conveying mechanism 3 is located below the laser marking head 2 and is connected to the top of the laser etching frame 1 via a mounting bracket. It is used to convey the aluminum electrolytic capacitor to be marked to the etching and marking position below the laser marking head 2.

[0055] Multiple capacitor transfer mechanisms 4 are evenly arranged on the outer surface of the conveying mechanism 3. They are used to simulate the outline of the aluminum electrolytic capacitor to be marked and then lift it accordingly. During the marking process, the aluminum electrolytic capacitor is flipped simultaneously to complete the operation of the laser marking head 2 to uniformly mark the arc-shaped outer wall of the aluminum electrolytic capacitor. While flipping the aluminum electrolytic capacitor, the capacitor transfer mechanism 4 sucks up the smoke and dust generated by the laser marking to keep the surface of the aluminum electrolytic capacitor clean.

[0056] The drive block assembly is located on the top side of the conveying mechanism 3 and is used to assist the capacitor transfer mechanism 4 in completing the contour lifting action of the aluminum electrolytic capacitor.

[0057] The flipping drive mechanism 7 is located on the top side of the laser etching frame 1. It works in conjunction with the drive block assembly to complete the contour clamping of the aluminum electrolytic capacitor and at the same time provide power for the flipping of the aluminum electrolytic capacitor.

[0058] The drive block assembly includes a vertical plate 5 fixedly mounted on the top of the conveying mechanism 3 and located directly in front of the laser marking head 2. An arc-shaped protrusion 6 is fixedly mounted on the side wall of the vertical plate 5 near the laser marking head 2.

[0059] The flipping drive mechanism 7 includes a support frame 71 fixedly mounted on the top of the laser etching frame 1 and located directly behind the laser marking head 2. A servo motor 73 and an electric push rod 72 are fixedly mounted on the upper and lower sides of the side wall of the support frame 71, respectively. The output shaft of the servo motor 73 rotates through the support frame 71 and is fixedly mounted with a cross-shaped transmission shaft 74. A second sliding sleeve 75 is slidably fitted on the outer wall of the cross-shaped transmission shaft 74. A second friction disc 76 is fixedly mounted at the end of the second sliding sleeve 75 away from the cross-shaped transmission shaft 74. The electric push rod 72... The output end slides through the support frame 71 and is connected to the second sliding sleeve 75 via a connecting rod. The servo motor 73 and the electric push rod 72 are both controlled by the controller. The controller first controls the electric push rod 72 to push the second sliding sleeve 75 to slide a preset distance along the outer wall of the cross-shaped transmission shaft 74 within the same interval time. Then, it controls the servo motor 73 to rotate at a preset speed for a preset time. After the servo motor 73 finishes running, the electric push rod 72 will pull the second sliding sleeve 75 again to return to its original position. The connecting rod can only rotate relative to the outer wall of the second sliding sleeve 75.

[0060] The conveying mechanism 3 includes a conveying bracket 31 and gears 32 rotatably disposed on both sides inside the conveying bracket 31. A first toothed belt 33 is fitted on the outer wall of the two gears 32. A support plate 34 is fixedly disposed on the inner wall of the conveying bracket 31 and below the first toothed belt 33. The top of the support plate 34 has a lifting groove adapted to the structure of the first toothed belt 33. The first toothed belt 33 is slidably disposed in the lifting groove. A stepper motor for driving one of the gears 32 to rotate is fixedly disposed on the outer wall of the conveying bracket 31. The output shaft of the stepper motor rotates through the conveying bracket 31 and is connected to one of the gears 32.

[0061] like Figures 6-14 The second embodiment is shown, which differs from the first embodiment in that: the capacitor transfer mechanism 4 includes a base 41 detachably mounted on the top of the transfer mechanism 3. Two rollers 42 are rotatably mounted on both sides of the outer surface of the base 41. A contouring limiting component 43 for contouring and lifting the aluminum electrolytic capacitor is mounted on the top of the base 41. A flipping component 44 for shielding its internal space to prevent etching dust from scattering is mounted on the top of the contouring limiting component 43. A positioning component 45 is also mounted on the side of the contouring limiting component 43 near the drive block component. When the drive block component and the contouring limiting component 43 meet, they can push one end of the positioning component 45 to move a fixed distance. The rollers 42 slide along the top sides of the support plate 34.

[0062] Positioning component 45 includes a side plate 451 fixedly mounted on the outer wall of contouring limiting component 43. A first sliding sleeve 452 slides through the interior of the side plate 451. A clamping arm 453 is slidably mounted inside the first sliding sleeve 452. The clamping arm 453 and the first sliding sleeve 452 are locked in position by fastening bolts. A first friction plate 454 is also fixedly mounted at the end of the clamping arm 453 away from the side plate 451. Multiple balls are rotatably mounted on the outer wall of the first friction plate 454. Each ball is fitted with a rubber protective sleeve on its outer wall. The end of the first sliding sleeve 452 away from the clamping arm 453... A hemispherical protrusion 456 is fixedly provided, and a spring 457 is slidably sleeved on the outer wall of the first sliding sleeve 452 between the side plate 451 and the hemispherical protrusion 456. The first sliding sleeve 452 can only slide relative to the side plate 451 and cannot rotate. The clamping arm 453 can only slide along the inner wall of the first sliding sleeve 452. By flexibly adjusting the length of the clamping arm 453 extending out of the first sliding sleeve 452, it can be ensured that after the first friction plate 454 is pushed a fixed distance by the arc protrusion 6, the distance between one end of the aluminum electrolytic capacitor of different length and one end of the mounting box 431 is always a fixed distance.

[0063] The contouring limiting component 43 includes a mounting box 431 and sliding grooves 432 formed on both sides of the outer wall of the mounting box 431. Two through grooves 433 are formed on both sides of the side wall of the mounting box 431. A guide post 434 is fixedly installed inside each through groove 433. A first spring 435 is slidably sleeved on the outer wall of the guide post 434. Mounting seat 1 436 and mounting seat 2 437 are fixedly installed on both sides of the interior of the mounting box 431. Multiple lifting grooves 438 are formed on the top of mounting seat 1 436 and mounting seat 2 437. A contouring lifting unit is movably arranged in the two lifting grooves 438 at the opposite positions of mounting seat 1 436 and mounting seat 2 437. Multiple contouring lifting units are locked or unlocked by locking component 1 4313 and locking component 2 4314 to readjust the height of the top.

[0064] The contour lifting unit includes lifting columns 439 that are slidably disposed in lifting grooves 438 at opposite positions within mounting base 1 436 and mounting base 2 437. Long roller shafts 4310 are rotatably disposed on the opposite side walls of the two lifting columns 439. A second spring 4311 is fixedly disposed inside the lifting groove 438 at the bottom end of the lifting column 439 at the corresponding position. A limit tooth plate 4312 is fixedly disposed on the outer wall of the lifting column 439 near the first locking component 4313. A rubber anti-slip sleeve is fixedly sleeved on the outer wall of the long roller shaft 4310.

[0065] Locking component 4313 and locking component 4314 have the same structure. Locking component 4313 includes a long box a1 that is detachably mounted on the side wall of mounting base 436 by bolts. A long slider a2 is slidably mounted inside the long box a1. A rack a3 is evenly fixed on the outer wall of the long slider a2 near the mounting base 436, corresponding to the positions of multiple limiting tooth plates 4312. Each rack a3 slides through the long box a1 and extends into the interior of the lifting groove 438. The locking or unlocking operation of the lifting column 439 is completed by the engagement or disengagement of the rack a3 and the corresponding upper limit tooth plate 4312. An L-shaped push-pull arm a4 is also fixed on the side wall of the long slider a2. The L-shaped push-pull arm a4 slides through the long box a1 and extends to the outside. One end of the L-shaped push-pull arm a4 slides through a through groove 433 on the left side and extends to the outside, and the guide post 434 at the corresponding position slides through the L-shaped push-pull arm a4. The first spring 435 is located between the inner wall of the through groove 433 and the L-shaped push-pull arm a4.

[0066] like Figures 15-19The third embodiment is shown, which differs from the second embodiment in that: the flipping assembly 44 includes an etching protective cover 441 and long sliders fixedly disposed on both sides of the inner wall of the etching protective cover 441. The top of the etching protective cover 441 is provided with a clearance groove 442 for the laser beam to pass through, and the interior of the etching protective cover 441 is provided with a dust collection assembly for collecting laser etching dust and a flipping execution assembly for driving the aluminum electrolytic capacitor to flip. The two long sliders are respectively slidably disposed inside the slide groove 432.

[0067] The dust collection assembly includes long suction nozzles 445 fixedly mounted on both sides of the inner wall of the etching protective cover 441 via mounting brackets 444. A dust suction assembly 443 for suctioning etching dust is also provided on one side of each of the two long suction nozzles 445. The dust suction assembly 443 and the two long suction nozzles 445 are connected by a pipe. The dust suction assembly 443 includes a dust collection cylinder b1 and an air inlet pipe b2 fixedly mounted on the top of the dust collection cylinder b1 and communicating with its interior. A gearbox b3 is fixedly mounted at one end of the dust collection cylinder b1. The input end of the transmission b3 is fixedly fitted with gear two b4, and the output pipe of the transmission b3 rotates through the dust collection cylinder b1 and is fixedly equipped with fan blades b5. Inside the dust collection cylinder b1, on the side away from the fan blades b5, a filter element b6 for filtering etching dust is detachably installed through a limiting bracket. The air inlet pipe b2 is located on the side close to the transmission b3. The fan blades b5 can generate a suction force towards the filter element b6. Multiple exhaust ports are opened at the end of the dust collection cylinder b1 away from the transmission b3 to discharge the air filtered by the filter element b6.

[0068] The flipping execution assembly includes a second horizontal plate 447 and a first horizontal plate 446 disposed on the inner and outer sides of the etching protective cover 441. Drive shaft 1 448 and drive shaft 2 449 are rotatably mounted on the inner sides of the second horizontal plate 447 and the first horizontal plate 446. A conical roller 4410 is fixedly mounted on one end of each drive shaft 1 448 and drive shaft 2 449 at the same location. A third spring 4411 is slidably sleeved on the outer wall of each drive shaft 1 448 and drive shaft 2 449 between the first horizontal plate 446 and the etching protective cover 441. The end of drive shaft 2 449 furthest from the conical roller 4410 is fixed... A first friction disk 4412 is fixedly installed. A third gear 4413 is also fixedly fitted on the outer wall of the second drive shaft 449 and inside the etching protective cover 441. A second toothed belt 4414 is fitted on the outer wall of the third gear 4413 and the second gear 4414. Each time the transmission mechanism 3 runs intermittently, a capacitor transfer mechanism 4 reaches the position opposite to the laser marking head 2. At this position, the first friction disk 4412 and the second friction disk 76 inside the capacitor transfer mechanism 4 are facing each other. Each time, the second friction disk 76 will push the first friction disk 4412 to move a fixed distance towards the etching protective cover 441.

[0069] In use, first place the aluminum electrolytic capacitor to be marked in the middle of the top of the contour limiting component 43, then manually press the L-shaped push-pull arm a4 with one hand. The L-shaped push-pull arm a4 pulls the rack a3 along the inner wall of the long box a1 away from the limiting tooth plate 4312. At the same time, the L-shaped push-pull arm a4 slides along the outer wall of the guide column 434. The first spring 435 is compressed and undergoes elastic deformation. Multiple racks a3 and the limiting tooth plate 4312 at the corresponding positions disengage. At this time, the lifting column 439 can move up or down in the longitudinal direction.

[0070] Then, the aluminum electrolytic capacitor is pressed vertically downwards. The long roller shaft 4310 located below the aluminum electrolytic capacitor is pushed by the downward pressure, causing the corresponding lifting column 439 to move down along the lifting groove 438. At this time, the second spring 4311 at the corresponding position is compressed and undergoes elastic deformation, pressing down on the aluminum electrolytic capacitor until the long roller shaft 4310 in contact with it can no longer move down. Then, the two L-shaped push-pull arms a4 are released. The two L-shaped push-pull arms a4 are pushed back to their original positions by the elastic force of the first spring 435 at the corresponding position. At the same time, the long slider a2 is pushed by the L-shaped push-pull arms a4 at the corresponding position and moves closer to the limiting tooth plate 4312 at the opposite position until the long slider a2 and the opposite limiting tooth plate 4312 mesh with each other, and the positions of the lifting columns 439 at multiple positions are locked. At this point, the simulated contour lifting operation of the contour limiting component 43 is completed. The same operation is performed on other capacitor transfer mechanisms 4 according to the above simulated contour lifting operation method.

[0071] Next, adjust the length of the clamping arm 453 extending out of the first sliding sleeve 452 according to the scale groove 455 on the outer wall of the clamping arm 453. Then, use the fastening bolts to lock the position of the clamping arm 453, and adjust the clamping arms 453 in other positions of the capacitor transfer mechanism 4 in the same way to ensure that the aluminum electrolytic capacitors of the same batch can move the same distance along the top of the contour limiting component 43 after being pushed by the first friction plate 454.

[0072] It should be noted that the laser etching and marking device for processing aluminum electrolytic capacitors has a pre-set marking control program for aluminum electrolytic capacitors of known conventional sizes. Using this control program, the electric push rod 72 and servo motor 73 in the flipping drive mechanism 7 select the corresponding control program according to the size of the aluminum electrolytic capacitor to be marked. The electric push rod 72 can use the connecting rod to first push the second sliding sleeve 75 to move a preset distance, so that the second friction disk 76 and the first friction disk 4412, which has been moved to the marking position, come into contact and push the first friction disk 4412 to move a preset distance. This allows the outer walls of the tapered rollers 4410 on both sides to come into contact with the outer wall of the aluminum electrolytic capacitor and form a certain amount of squeezing force on the outer wall of the aluminum electrolytic capacitor. Furthermore, under different control programs, the first friction piece 454 at the corresponding position has a unique and specific position corresponding to it, so that the other end of the aluminum electrolytic capacitor will not be pushed by the tapered roller 4410 and will not move relative to the long roller shaft 4310 due to the limitation of the first friction piece 454.

[0073] Therefore, based on the current size of the aluminum electrolytic capacitor that has been lifted and shaped, the corresponding control program for the control flipping drive mechanism 7 is selected, and the position of the first friction plate 454, i.e. the length of the clamping arm 453 extending out of the first sliding sleeve 452, is also the preset length corresponding to this control program.

[0074] After the preliminary preparations are completed, the aluminum electrolytic capacitors to be marked are placed in the middle position on top of multiple contouring limiting components 43, ensuring that one end of the aluminum electrolytic capacitor abuts against the side wall of the first friction plate 454. When the conveying mechanism 3 is running, it drives multiple capacitor transfer mechanisms 4 to pass under the laser marking head 2 in sequence. At the same time that the capacitor transfer mechanism 4 reaches the laser marking head 2, the hemispherical protrusion 456 and the arc protrusion 6 meet and are pushed by the arc protrusion 6, which pushes the first friction plate 454 to move a fixed distance into the mounting box 431. The aluminum electrolytic capacitor moves to the middle position on top of the contouring limiting component 43 under the push of the first friction plate 454. There is a five-second pause when the capacitor transfer mechanism 4 reaches the laser marking head 2. At this time, the first friction disk 4412 and the second friction disk 76 in the capacitor transfer mechanism 4 are facing each other. During the five-second pause, the control program of the flipping drive mechanism 7 first controls the electric push rod 72 to push the second friction disk 76 to move a preset distance using the connecting rod. After the outer walls of friction disk 76 and friction disk 4412 come into contact, they continue to move. Drive shaft 1 448 and drive shaft 2 449 slide along the inner wall of the etched protective cover 441. The two conical rollers 4410 connected to drive shaft 1 448 and drive shaft 2 449 respectively come into contact with the inner wall of the aluminum electrolytic capacitor and the outer wall of the aluminum electrolytic capacitor. When friction disk 4412 is pushed to its limit position, the two conical rollers 4410 exert a certain amount of squeezing force on the outer wall of the aluminum electrolytic capacitor. The pressure will not damage the capacitor. Then, the servo motor 73 drives the second friction disk 76 to rotate according to the preset program. Under the action of friction between the second friction disk 76 and the first friction disk 4412, the first friction disk 4412 uses the power of the second friction disk 76 to drive the second drive shaft 449 to rotate. The conical roller 4410 uses friction to drive the aluminum electrolytic capacitor to rotate. At the same time, the laser beam emitted by the laser marking head 2 passes through the avoidance groove 442 and forms a preset etching mark on the surface of the aluminum electrolytic capacitor.

[0075] While the conical roller 4410 is rotating, gear 3 4413 drives gear 2 b4 to rotate through the second toothed belt 4414. Gear 2 b4 inputs power into the transmission b3 and outputs it after acceleration. The fan blade b5 is accelerated and rotated under the drive of the output shaft of the transmission b3. The suction force generated by the fan blade b5 forms a negative pressure state around the air inlet of the long dust suction nozzle 445 through the pipe. The dust formed by laser etching is sucked into the air intake pipe b2 through the air inlet on the side wall of the long dust suction nozzle 445. The etching dust is filtered and intercepted when it flows through the filter element b6 with the air. The air is output through the exhaust port at the end of the dust collection cylinder b1.

[0076] After the etching operation of the laser marking head 2 is completed, the servo motor 73 immediately stops running, the electric push rod 72 pulls the second sliding sleeve 75 back to its original position, and the conveying mechanism 3 continues to drive the capacitor transfer mechanism 4 to move intermittently. During the subsequent movement interval, the marked aluminum electrolytic capacitor can be taken out from the capacitor transfer mechanism 4.

[0077] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0078] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser etching and marking device for processing aluminum electrolytic capacitors, comprising laser etching and a laser marking head disposed on top of the laser etching, characterized in that, Also includes: The conveying mechanism is located below the laser marking head and connected to the top of the laser etching via a mounting bracket. It is used to convey the aluminum electrolytic capacitor to be marked to the etching and marking position below the laser marking head. Multiple capacitor transfer mechanisms are evenly arranged on the outer surface of the conveying mechanism. They are used to simulate and lift the aluminum electrolytic capacitor to be marked after conforming to its shape. During the marking process, the aluminum electrolytic capacitor is flipped simultaneously to complete the operation of the laser marking head to uniformly mark the arc-shaped outer wall of the aluminum electrolytic capacitor. While flipping the aluminum electrolytic capacitor, the capacitor transfer mechanism sucks up the smoke and dust generated by the laser marking to keep the surface of the aluminum electrolytic capacitor clean. The drive block assembly is located on the top side of the conveying mechanism and is used to assist the capacitor transfer mechanism in completing the contour lifting action of the aluminum electrolytic capacitor. The flipping drive mechanism is located on the top side of the laser etching and is used to work with the drive block assembly to complete the contour clamping of the aluminum electrolytic capacitor and at the same time provide power for the flipping of the aluminum electrolytic capacitor. The capacitor transfer mechanism includes a base detachably mounted on top of the conveying mechanism. The top of the base is provided with a contouring limiting component for contouring and lifting the aluminum electrolytic capacitor. The contouring limiting component includes a mounting box and sliding grooves on both sides of the outer wall of the mounting box. Two through slots are provided on both sides of the side wall of the mounting box. A guide post is fixedly installed inside each through slot. A No. 1 spring is slidably sleeved on the outer wall of the guide post. Mounting seat 1 and mounting seat 2 are fixedly installed on both sides of the inner side of the mounting box. Multiple lifting slots are provided on the top of mounting seat 1 and mounting seat 2. A contouring lifting unit is movably installed in the two lifting slots at opposite positions of mounting seat 1 and mounting seat 2. Multiple contouring lifting units are locked or unlocked by locking component 1 and locking component 2 to readjust the height of the top. The contour lifting unit includes lifting columns that are slidably disposed in lifting grooves at opposite positions within mounting base one and mounting base two. Long roller shafts are rotatably disposed on the opposite side walls of the two lifting columns. A second spring is fixedly disposed at the bottom end of the lifting column and inside the lifting groove at the corresponding position. A limit tooth plate is fixedly disposed on the outer wall of the lifting column near the first locking component.

2. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 1, characterized in that: The drive block assembly includes a vertical plate fixedly mounted on the top of the conveying mechanism and located directly in front of the laser marking head. An arc-shaped protrusion is fixedly mounted on the side wall of the vertical plate near the laser marking head.

3. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 1, characterized in that: The flipping drive mechanism includes a support frame fixedly mounted on the top of the laser etching head and located directly behind the laser marking head. A servo motor and an electric push rod are fixedly mounted on the upper and lower sides of the side wall of the support frame, respectively. The output shaft of the servo motor rotates through the support frame and is fixedly mounted on a cross-shaped transmission shaft. A second sliding sleeve is slidably fitted on the outer wall of the cross-shaped transmission shaft. A second friction disc is also fixedly mounted at the end of the second sliding sleeve away from the cross-shaped transmission shaft. The output end of the electric push rod slides through the support frame and is connected to the second sliding sleeve through a connecting rod.

4. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 1, characterized in that: The conveying mechanism includes a conveying bracket and gears 1 rotatably disposed on both sides inside the conveying bracket. A first toothed belt is fitted on the outer wall of the two gears 1 together. A support plate is also fixedly disposed on the inner wall of the conveying bracket and below the first toothed belt. The top of the support plate has a lifting groove adapted to the structure of the first toothed belt. The first toothed belt is slidably disposed in the lifting groove.

5. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 1, characterized in that: The base has two rollers rotatably mounted on both sides of its outer surface, and the top of the contouring limiting component is provided with a flipping component to shield its internal space and prevent etching dust from scattering. Furthermore, the contouring limiting component is also provided with a positioning component on the side near the drive block component. When the drive block component and the contouring limiting component meet, they can push one end of the positioning component to move a fixed distance. The positioning component includes a side plate fixedly mounted on the outer wall of the contour limiting component. A first sliding sleeve slides through the inside of the side plate. A clamping arm is slidably mounted inside the first sliding sleeve. The clamping arm and the first sliding sleeve are locked in position by fastening bolts. A first friction plate is also fixedly mounted at the end of the clamping arm away from the side plate. Multiple balls are rotatably mounted on the outer wall of the first friction plate. A hemispherical protrusion is fixedly mounted at the end of the first sliding sleeve away from the clamping arm. A spring is slidably mounted on the outer wall of the first sliding sleeve between the side plate and the hemispherical protrusion.

6. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 1, characterized in that: The No. 1 locking assembly and the No. 2 locking assembly have the same structure. The No. 1 locking assembly includes a long box that is detachably mounted on one side wall of the mounting base by bolts. A long slider is slidably mounted inside the long box. A rack is evenly fixed on the outer wall of the long slider near the mounting base, and the racks correspond one-to-one with the positions of multiple limiting tooth plates. Each rack slides through the long box and extends into the interior of the lifting groove. The locking or unlocking operation of the lifting column is completed by the engagement or disengagement of the racks and the corresponding upper limiting tooth plates. An L-shaped push-pull arm is also fixed on the side wall of the long slider. The L-shaped push-pull arm slides through the long box and extends to the outside.

7. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 5, characterized in that: The flipping assembly includes an etching protective cover and long sliders fixedly disposed on both sides of the inner wall of the etching protective cover. The top of the etching protective cover is provided with a clearance slot for the laser beam to pass through, and the interior of the etching protective cover is provided with a dust collection assembly for collecting laser etching dust and a flipping execution assembly for driving the aluminum electrolytic capacitor to flip. The dust collection assembly includes long suction nozzles fixedly mounted on both sides of the inner wall of the etching protective cover via a mounting bracket, and a smoke suction assembly for sucking up etching dust is also provided on one side of the two long suction nozzles. The smoke suction assembly and the two long suction nozzles are connected by a pipe.

8. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 7, characterized in that: The dust extraction assembly includes a dust collection cylinder and an air inlet pipe fixedly installed on the top of the dust collection cylinder and connected to its interior. A gearbox is fixedly installed at one end of the dust collection cylinder. A gear two is fixedly fitted at the input end of the gearbox, and the output pipe of the gearbox rotates through the dust collection cylinder and is fixedly installed with a fan blade. A filter element for filtering etched dust is detachably installed on the side of the dust collection cylinder away from the fan blade through a limiting bracket.

9. The laser etching and marking device for processing aluminum electrolytic capacitors according to claim 8, characterized in that: The flipping execution component includes a second horizontal plate and a first horizontal plate disposed on the inner and outer sides of the etching protective cover. Drive shaft one and drive shaft two are rotatably disposed on the inner sides of the second horizontal plate and the first horizontal plate. A conical roller is fixedly disposed at one end of the first and the second drive shafts located on the etching protective cover. A third spring is slidably sleeved on the outer wall of the first and the second drive shafts located between the first horizontal plate and the etching protective cover. A friction disc is fixedly disposed at the end of the second drive shaft away from the conical roller. A gear three is also fixedly sleeved on the outer wall of the second drive shaft located inside the etching protective cover. A second toothed belt is sleeved on the outer wall of the third and the second gear.

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