An automated laser marking machine for toothbrush production

Abstract

The present application provides an automatic laser marking machine for toothbrush production, belonging to the technical field of toothbrush production. It includes a conveyor belt, above which there is a marking machine housing. A movable plate is slidably installed on the marking machine housing, and a laser marking head is slidably installed in the movable plate. An adjustment component is installed on the laser marking head. A moving groove is formed in the conveyor belt, and a connecting plate is slidably installed in the moving groove. A damping shaft is fixedly arranged on the connecting plate, and a first support plate, a second support plate, and a third support plate are installed on the damping shaft. Placing grooves are formed on the first support plate, the second support plate, and the third support plate. The front and rear sides of the connecting plate are respectively connected to the conveyor belt through a first elastic cord and a second elastic cord. The present application solves the problems that the existing laser marking machine cannot perform horizontal or oblique marking on the same row of toothbrushes, thus using the marking machine to achieve the classification marking function, and cannot achieve follow-up marking through a sliding structure during the continuous conveying of toothbrushes.

Description

Technical Field

[0001] The present invention relates to the technical field of toothbrush production, and specifically relates to an automatic laser marking machine for toothbrush production. Background Art

[0002] With the rapid development of the oral care industry towards the personalized direction, the demand for efficient and precise product marking technology in the toothbrush manufacturing field has gradually increased. The laser marking machine forms a permanent mark on the toothbrush surface through short-pulse laser. However, there are still some deficiencies in the existing laser marking machines.

[0003] The invention patent with the publication number of CN117260004B discloses a toothbrush head assembly device for electric toothbrush production, including a frame, a laser marking machine, and a laser engraving pretreatment part. An assembly seat is installed on the frame. After the toothbrush head is assembled, the assembly seat rotates. When the trigger part A operates, the reciprocating part will act, driving the air supply part to operate, so that gas enters the inside of the laser engraving pretreatment part. Through the operation of the reciprocating part, the laser engraving pretreatment part rotates to clean and blow air on the surface of the toothbrush head, improving the cleaning effect to ensure the integrity of laser marking. After cleaning the toothbrush head, the assembly seat continues to rotate. When the trigger part B operates, the transmission part will act, driving the pulling part to operate, so that the pulling part pulls the lens protection plate out of the lens protection cover, and the lens protection plate cancels the enclosure of the optical unit, so as to facilitate the laser marking operation of the laser marking machine. Although the above device can achieve the functions of cleaning and blowing air, during the marking process, it cannot perform horizontal or oblique marking on the same row of toothbrushes to utilize the marking machine to achieve the classification marking function. Moreover, the existing marking machine cannot adaptively adjust the support position and marking distance of toothbrushes of different sizes, and cannot achieve follow-up marking through the sliding structure during the continuous transportation of toothbrushes. Summary of the Invention

[0004] In view of the problems existing in the existing laser marking machine for toothbrush production, the present invention is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solution: An automatic laser marking machine for toothbrush production, including a conveyor belt. Above the conveyor belt, there is a marking machine housing. A movable plate is slidably installed on the marking machine housing. A laser marking head is slidably installed inside the movable plate. An adjustment component is installed on the laser marking head. A moving groove is formed in the conveyor belt. A connecting plate is slidably installed in the moving groove. A damping shaft is fixedly provided on the connecting plate. A first support plate, a second support plate, and a third support plate are installed on the damping shaft. Placing grooves are formed on the first support plate, the second support plate, and the third support plate. The front and rear sides of the connecting plate are respectively connected to the conveyor belt by a first elastic rope and a second elastic rope. A pushing component is arranged on the conveyor belt. A first electric push rod is installed on the connecting plate. An adapter plate is connected to the first electric push rod. The adapter plate and the third support plate are fixedly connected. A power supply is arranged below the marking machine housing. A first conductive contact piece is installed on the power supply. A second conductive contact piece is installed on the marking machine housing. A first spring is installed between the first support plate and the second support plate. A first connecting rod and a second connecting rod are fixedly installed on the connecting plate. A side plate is installed on the marking machine housing. A triggering component is installed on the side plate.

[0006] As a preferred solution of the present invention, the length of the moving groove is greater than the length of the connecting plate. The damping shaft is rotatably connected to the first support plate, and the damping shaft is slidably connected to the second support plate and the third support plate. The first connecting rod is slidably connected to the third support plate.

[0007] As a preferred solution of the present invention, a second groove is formed in the first support plate. A docking rod for docking with the second groove is fixedly connected to the second support plate. A first groove for placing the first spring is formed in the second support plate. The connection methods between the first support plate and the leftmost second support plate, the rightmost second support plate, the third support plate, and between adjacent two second support plates are all the same.

[0008] As a preferred solution of the present invention, the first elastic rope and the second elastic rope are evenly distributed on the front and rear sides of the connecting plate. The inner wall of the moving groove and the outer wall of the connecting plate are in mutual contact.

[0009] As a preferred solution of the present invention, the pushing component includes openings formed at the bottoms of the first support plate, the second support plate, and the third support plate. Sliders are slidably installed on both the first support plate and the second support plate. A convex block is fixedly connected to the conveyor belt.

[0010] As a preferred solution of the present invention, an inclined plane is arranged above the slider. The height of the slider is less than the height of the opening. The opening extends to the front side of the placing grooves on the first support plate, the second support plate, and the third support plate.

[0011] As a preferred embodiment of the present invention, the side plate is connected to the output shaft of the electromagnetic braking motor, and the output shaft of the electromagnetic braking motor is fixedly connected to the marking machine housing.

[0012] As a preferred embodiment of the present invention, the triggering assembly includes a connecting cylinder fixedly installed on the side plate. A first rotating plate is rotatably installed on the connecting cylinder. A first scroll spring is installed between the connecting cylinder and the first rotating plate. A damping ring is fixedly connected to the first rotating plate. A second rotating plate is rotatably installed on the damping ring. A second scroll spring is installed between the second rotating plate and the first rotating plate. The spring constant of the second scroll spring is greater than that of the first scroll spring.

[0013] As a preferred embodiment of the present invention, a second electric push rod is installed between the rightmost movable plate and the marking machine housing. Second springs are fixedly connected between adjacent two movable plates and between the leftmost movable plate and the marking machine housing.

[0014] As a preferred embodiment of the present invention, the adjusting assembly includes a fixed block welded above the laser marking head. A ball shaft is rotatably installed in the fixed block. A slide rod penetrates through the ball shaft. Blocks are fixedly connected to both ends of the slide rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By providing the movable plate, the laser marking head, the adjusting assembly and the second spring, when the device is marking, the front-back position of each laser marking head in the corresponding movable plate can be changed by adjusting the angle of the slide rod, and the front-back distance between adjacent two laser marking heads can be kept equal. Furthermore, the device can perform multi-segment marking with equal front-back distance on the same row of toothbrushes, so as to classify and mark different toothbrushes subsequently, enhancing the functionality of the device, and solving the problem that the existing laser marking machine cannot perform horizontal or oblique marking on the same row of toothbrushes for classification marking. This device has the advantage of stronger adaptability.

[0017] 2. The device is provided with a first spring, a first support plate, a second support plate and a third support plate. When the third support plate is pushed to the right, the first springs at various places are stretched. The distance between the first support plate and the leftmost second support plate, between adjacent two second support plates, and between the rightmost second support plate and the third support plate can be kept equal. Furthermore, the overall width of the placement groove is increased, so as to support toothbrushes of different sizes. At the same time, when the second electric push rod is shortened, the second springs on each movable plate are synchronously stretched, so that the left-right distance between each laser marking head remains the same, enabling the device to adaptively adjust the marking distance according to the size of the toothbrush, enhancing the applicable range of the device, and solving the problem that the existing marking machine cannot adaptively adjust the support position and marking distance of toothbrushes of different sizes.

[0018] 3. Through the first elastic cord, the second elastic cord, the connecting plate and the triggering component provided, the function of follow-up laser marking is realized. When the conveyor belt works, the second connecting rod on the side of the connecting plate can abut against the first conductive contact piece. The first conductive contact piece in the bent state will gradually contact the second conductive contact piece, thereby turning on the power supply of the marking machine and making the marking machine start to work. When the connecting plate moves to the rearmost side of the moving groove, the inner wall of the moving groove will abut against the rear surface of the connecting plate. At this time, the first rotating plate and the second rotating plate are pressed and rotate counterclockwise. After the second connecting rod moves away from the second rotating plate, the first rotating plate and the second rotating plate are reset under the elastic force of the first scroll spring and the second scroll spring. The second conductive contact piece is disengaged from the abutting state with the first conductive contact piece and returns to the state in Figure 6 until the next connecting plate moves to the position of the triggering component to perform the marking work again. When the device is marking, since the second rotating plate on the triggering component abuts against the second connecting rod, the connecting plate can be kept stationary relative to the marking machine housing, so that the device can perform follow-up laser marking work during the continuous transportation of toothbrushes, enhancing the convenience of the device during use. Figure 6 the state in Figure 6 , until the next connecting plate moves to the position of the triggering component to perform the marking work again. When the device is marking, since the second rotating plate on the triggering component abuts against the second connecting rod, the connecting plate can be kept stationary relative to the marking machine housing, so that the device can perform follow-up laser marking work during the continuous transportation of toothbrushes, enhancing the convenience of the device during use.

[0019] 4. The device is provided with a pushing component, a second elastic cord and a placement groove. After the device completes one marking, the connecting plate will be reset under the pulling force of the second elastic cord. After the connecting plate is pulled and reset by the second elastic cord, it will hit the convex block through the slider. The inclined plane on the slider will push the toothbrush in the placement groove upward, thereby realizing the function of automatic blanking, enhancing the practicability of the device and making the device automatically blank after the marking is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is the overall structural schematic diagram of an automatic laser marking machine for toothbrush production according to the present invention;

[0022] Figure 2 is Figure 1 the enlarged schematic diagram of the structure at A in Figure 2 ;

[0023] Figure 3 is Figure 1 the enlarged schematic diagram of the structure at B in Figure 1 ;

[0024] Figure 4 is Figure 1 the enlarged schematic diagram of the structure at C in Figure 1 ;

[0025] Figure 5 isFigure 1 Enlarged schematic view of the structure at position D in the [specific context];

[0026] Figure 6 Schematic diagram of the connection structure between the side plate and the trigger assembly of the present invention;

[0027] Figure 7 Schematic diagram of the connection structure between the connecting plate and the first elastic cord of the present invention;

[0028] Figure 8 It is Figure 7 Enlarged schematic view of the structure at position E in the [specific context];

[0029] Figure 9 Schematic diagram of the connection structure between the damping shaft and the first support plate of the present invention;

[0030] Figure 10 Schematic diagram of the split structure between the first support plate and the second support plate of the present invention;

[0031] Figure 11 Schematic diagram of the connection structure between the housing of the marking machine and the movable plate of the present invention;

[0032] Figure 12 It is Figure 11 Enlarged schematic view of the structure at position F in the [specific context].

[0033] Reference numerals: 1, conveyor belt; 2, moving groove; 3, connecting plate; 4, damping shaft; 5, first support plate; 6, second support plate; 7, third support plate; 8, placement groove; 9, first elastic cord; 10, second elastic cord; 11, pushing assembly; 1101, opening; 1102, slider; 1103, convex block; 12, first electric push rod; 13, connecting plate; 14, electromagnetic braking motor; 15, side plate; 16, first connecting rod; 17, second connecting rod; 18, trigger assembly; 1801, connecting cylinder; 1802, first rotating plate; 1803, first scroll spring; 1804, damping ring; 1805, second rotating plate; 1806, second scroll spring; 19, first conductive contact; 20, second conductive contact; 21, power supply; 22, first groove; 23, docking rod; 24, second groove; 25, first spring; 26, housing of the marking machine; 27, movable plate; 28, laser marking head; 29, adjusting assembly; 2901, fixed block; 2902, ball shaft; 2903, stop block; 2904, sliding rod; 30, second spring; 31, second electric push rod. Detailed implementation manners

[0034] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention is provided in conjunction with the accompanying drawings.

[0035] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways than those specifically described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of clarity, the cross-sectional views showing the device structures will be enlarged locally out of the ordinary scale, and the schematic diagrams are only examples and should not limit the scope of the present invention. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0037] To make the objectives, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Such as Figures 1 - 11As shown in the figure, an automatic laser marking machine for toothbrush production includes a conveyor belt 1. Above the conveyor belt 1, there is a marking machine housing 26. A movable plate 27 is slidably installed on the marking machine housing 26. A laser marking head 28 is slidably installed in the movable plate 27. An adjustment component 29 is installed on the laser marking head 28. The adjustment component 29 is used to change the front-back distance of the laser marking head 28 in each movable plate 27, so as to adapt to subsequent laser marking work for toothbrushes with different placement distances. A moving groove 2 is opened on the conveyor belt 1. A connecting plate 3 is slidably installed in the moving groove 2. A damping shaft 4 is fixedly arranged on the connecting plate 3. A first support plate 5, a second support plate 6, and a third support plate 7 are installed on the damping shaft 4. Placement grooves 8 are opened on the first support plate 5, the second support plate 6, and the third support plate 7. The front and rear sides of the connecting plate 3 are respectively connected to the conveyor belt 1 through a first elastic cord 9 and a second elastic cord 10. A pushing component 11 is arranged on the conveyor belt 1. A first electric push rod 12 is installed on the connecting plate 3. A connecting plate 13 is connected to the first electric push rod 12. The connecting plate 13 and the third support plate 7 are fixedly connected. A power supply 21 is arranged below the marking machine housing 26. A first conductive contact piece 19 is installed on the power supply 21. A second conductive contact piece 20 is installed on the marking machine housing 26, so that the marking machine is powered on for automatic marking. After the connecting plate 3 moves to a suitable position, the first conductive contact piece 19 will contact the second conductive contact piece 20. A first spring 25 is installed between the first support plate 5 and the second support plate 6. After the third support plate 7 on the device is pulled to the right, the first springs 25 at various places are stretched synchronously to adapt to wider toothbrushes for use. A first connecting rod 16 and a second connecting rod 17 are fixedly installed on the connecting plate 3. A side plate 15 is installed on the marking machine housing 26. A triggering component 18 is installed on the side plate 15. When the conveyor belt 1 is continuously working, the second connecting rod 17 on the connecting plate 3 will contact the triggering component 18. The triggering component 18 makes the marking machine automatically powered on. At the same time, the connecting plate 3 will slide in the moving groove 2, so as to realize the function of follow-up marking after power on.

[0039] In this embodiment, the length of the moving groove 2 is greater than the length of the connecting plate 3 to ensure that the connecting plate 3 can slide back and forth in the moving groove 2. The damping shaft 4 is rotatably connected to the first support plate 5, and the damping shaft 4 is slidably connected to the second support plate 6 and the third support plate 7. The first connecting rod 16 is slidably connected to the third support plate 7 to ensure that the left and right positions of the first support plate 5 on the device do not change, so as to adapt to subsequent support and marking of toothbrushes with different widths.

[0040] In this embodiment, a second groove 24 is formed in the first support plate 5, a docking rod 23 for docking with the second groove 24 is fixedly connected to the second support plate 6, a first groove 22 for placing a first spring 25 is formed in the second support plate 6, and the connection methods between the first support plate 5 and the leftmost second support plate 6, between the rightmost second support plate 6 and the third support plate 7, and between adjacent second support plates 6 are all the same. When the third support plate 7 is pushed to the right, the first spring 25 in the first groove 22 will be stretched, and the docking rod 23 will slide in the second groove 24, so that the distances between the first support plate 5 and the leftmost second support plate 6, between the rightmost second support plate 6 and the third support plate 7, and between adjacent second support plates 6 are all kept the same. At this time, the space size for placing the toothbrushes to be marked is synchronously adjusted, enabling the device to be used for multiple toothbrushes of different sizes.

[0041] In this embodiment, the first elastic cord 9 and the second elastic cord 10 are evenly distributed on the front and rear sides of the connecting plate 3. The inner wall of the moving groove 2 and the outer wall of the connecting plate 3 are in mutual contact. The first elastic cord 9 and the second elastic cord 10 enable the connecting plate 3 to reset after the position change, enhancing the convenience during the use of the device. And later, the elastic force provided by the second elastic cord 10 when the connecting plate 3 resets can be utilized to achieve the material discharging function.

[0042] In this embodiment, the top-pushing assembly 11 includes an opening 1101 formed at the bottoms of the first support plate 5, the second support plate 6, and the third support plate 7. Sliders 1102 are slidably installed on both the first support plate 5 and the second support plate 6. A convex block 1103 is fixedly connected to the conveyor belt 1. When the first support plate 5, the second support plate 6, and the third support plate 7 reset, the first support plate 5 quickly moves backward and makes the slider 1102 abut against the convex block 1103. Since the convex block 1103 is fixed to the conveyor belt 1, the marked toothbrushes on the device can be pushed out by using the slider 1102 to achieve the automatic material discharging function.

[0043] In this embodiment, an inclined surface is provided above the slider 1102, the height of the slider 1102 is less than the height of the opening 1101, and the opening 1101 extends to the front side of the placing groove 8 on the first support plate 5, the second support plate 6, and the third support plate 7, so that the placing groove 8 for placing the toothbrushes is in communication with the opening 1101. The inclined surface on the slider 1102 can gradually lift the toothbrushes in the device upward.

[0044] In this embodiment, the side plate 15 is connected to the output shaft of the electromagnetic braking motor 14, and the output shaft of the electromagnetic braking motor 14 is fixedly connected to the marking machine housing 26. The electromagnetic braking motor 14 can keep the position of the side plate 15 fixed after the position adjustment, and by changing the initial angle of the side plate 15, the front and rear initial marking positions of the whole device can be adjusted.

[0045] In this embodiment, the trigger assembly 18 includes a connecting cylinder 1801 fixedly installed on the side plate 15. A first rotating plate 1802 is rotatably installed on the connecting cylinder 1801. A first scroll spring 1803 is installed between the connecting cylinder 1801 and the first rotating plate 1802. A damping ring 1804 is fixedly connected to the first rotating plate 1802. A second rotating plate 1805 is rotatably installed on the damping ring 1804. A second scroll spring 1806 is installed between the second rotating plate 1805 and the first rotating plate 1802. The spring constant of the second scroll spring 1806 is greater than that of the first scroll spring 1803. When the second rotating plate 1805 is resisted, it will drive the first rotating plate 1802 to rotate, so as to realize the power-on function subsequently (as can be seen in combination with Figure 6 ). As the pressure on the first rotating plate 1802 and the second rotating plate 1805 gradually increases, both the second scroll spring 1806 and the first scroll spring 1803 will be compressed. After the marking is completed, the first scroll spring 1803 and the second scroll spring 1806 will cause the trigger assembly 18 to return to the Figure 6 state in the figure for the next use.

[0046] In this embodiment, a second electric push rod 31 is installed between the rightmost movable plate 27 and the marking machine housing 26. Second springs 30 are fixedly connected between adjacent movable plates 27 and between the leftmost movable plate 27 and the marking machine housing 26. When the second electric push rod 31 shortens, the rightmost movable plate 27 is pulled to the right, and the second springs 30 at each place are synchronously stretched, so that the device can simultaneously adjust the left-right spacing of multiple movable plates 27 and keep the distance between adjacent movable plates 27 equal to adapt to toothbrushes of different widths for synchronous laser marking work.

[0047] In this embodiment, the adjusting assembly 29 includes a fixed block 2901 welded above the laser marking head 28. A ball shaft 2902 is rotatably installed in the fixed block 2901. A slide rod 2904 penetrates through the ball shaft 2902. Blocks 2903 are fixedly connected to both ends of the slide rod 2904. The blocks 2903 are used to prevent the slide rod 2904 from being pulled out of the interior of the ball shaft 2902. When the angle of the slide rod 2904 changes, it will drive the angle of the ball shaft 2902 in the fixed block 2901 to change, so that the laser marking heads 28 change the arrangement mode while maintaining equal left-right spacing and equal front-back spacing. When the multiple laser marking heads 28 are arranged horizontally, the printing positions of each toothbrush can be kept the same. When the laser marking heads 28 are arranged obliquely, different toothbrushes can be marked and classified according to different marking positions.

[0048] It should be noted that the present invention is an automatic laser marking machine for toothbrush production. First, as Figures 1 - 7As shown, the conveyor belt 1 is used to convey the first support plate 5, the second support plate 6, and the third support plate 7 on the connecting plate 3, so as to continuously convey the toothbrushes in the placement groove 8 to the designated position for laser marking work. When the device is in use, the marking machine housing 26 is used to support the laser marking head 28 in the movable plate 27, and connect the second conductive contact piece 20 from the inside of the marking machine housing 26 to each laser marking head 28, so that multiple laser marking heads 28 can be simultaneously powered on 21 and perform synchronous marking work subsequently.

[0049] As Figures 1 - 10 shown, during the working process of the device, the width of the placement groove 8 is adjusted according to the width of the toothbrush. By extending the first electric push rod 12, the connecting plate 13 is driven to move to the right side of the device. The connecting plate 13 drives the third support plate 7 to slide to the right. The first spring 25 in the first groove 22 will be stretched, and the docking rod 23 will slide in the second groove 24. At this time, the distance between the first support plate 5 and the leftmost second support plate 6, the distance between the rightmost second support plate 6 and the third support plate 7, and the distance between adjacent two second support plates 6 are synchronously increased while maintaining equal distance, and the size of the placement groove 8 is synchronously adjusted. After the adjustment is completed, the marking distance also needs to be adjusted. As Figure 11 and Figure 12 shown, by shortening the second electric push rod 31, the rightmost movable plate 27 is pulled to the right, and the second springs 30 are synchronously stretched, so that the device can simultaneously adjust the left and right distances of multiple movable plates 27 and keep the distance between adjacent two movable plates 27 equal. At this time, the left and right distances of adjacent two movable plates 27 and the laser marking heads 28 inside them are synchronously adjusted, which can adapt to toothbrushes with different widths and placement distances for laser marking work. The device can perform aligned marking on a whole row of toothbrushes or perform stepped marking on a whole row of toothbrushes. By adjusting the angle of the sliding rod 2904, when the angle of the sliding rod 2904 changes, the angle of the ball shaft 2902 in the fixed block 2901 also changes, so that while maintaining equal left and right distances and equal front and back distances, the arrangement of the laser marking heads 28 is changed. When multiple laser marking heads 28 are arranged horizontally, the printing positions of each toothbrush can be kept the same. When the laser marking heads 28 are arranged obliquely, different toothbrushes can be marked, and at the same time, according to the different marking positions, different toothbrush pairs in the first support plate 5, the second support plate 6, and the third support plate 7 can be classified and marked. By changing the front and back positions of each laser marking head 28 in the corresponding movable plate 27 and changing the marking angle, different toothbrushes can be classified and marked subsequently.

[0050] As Figures 1 - 8As shown, when the conveyor belt 1 is working, the second connecting rod 17 on the side of the connecting plate 3 can abut against the first conductive contact piece 19. The first conductive contact piece 19 in the bent state will gradually come into contact with the second conductive contact piece 20. At this time, the laser marking head 28 is powered on by the power supply 21 and performs automatic marking work. When the connecting plate 3 moves to the rearmost side of the moving groove 2, the inner wall of the moving groove 2 will abut against the rear surface of the connecting plate 3. At this time, the pressure on the first rotating plate 1802 and the second rotating plate 1805 increases, and both the second scroll spring 1806 and the first scroll spring 1803 will be compressed. The second connecting rod 17 will pass under the second rotating plate 1805. The first scroll spring 1803 and the second scroll spring 1806 will cause the trigger assembly 18 to return to Figure 6 the state in the figure, and the first conductive contact piece 19 abutting against the second conductive contact piece 20 will reset, so that the laser marking head 28 is powered off again, completing one marking step until the second connecting rod 17 on the next connecting plate 3 acts on the trigger assembly 18 to achieve automatic marking work. When performing laser marking work, since the second rotating plate 1805 on the trigger assembly 18 abuts against the second connecting rod 17, the connecting plate 3 can be kept stationary relative to the marking machine housing 26, so that the device can perform follow-up laser marking during the continuous conveying of the toothbrush. Since the spring constant of the second scroll spring 1806 is greater than that of the first scroll spring 1803, and a damping ring 1804 is provided between the first rotating plate 1802 and the second rotating plate 1805, the damping ring 1804 makes it difficult for the second rotating plate 1805 to rotate under the first rotating plate 1802, so as to continuously push the connecting plate 3 on the device to move in the moving groove 2 in the conveyor belt 1 subsequently, so as to keep the first support plate 5, the second support plate 6, the third support plate 7 on the connecting plate 3 and the laser marking heads 28 at various positions on the marking machine housing 26 in position correspondence, thus ensuring the stability of the device during operation.

[0051] As Figure 2 shown, Figure 7 and Figure 8 shown, when the device completes one marking, the connecting plate 3 will reset under the pulling force of the second elastic cord 10. After the connecting plate 3 is pulled and reset by the second elastic cord 10, it will impact the convex block 1103 through the slider 1102 under the action of inertia. Since the convex block 1103 is fixed to the conveyor belt 1, the toothbrush that has completed marking can be gradually pushed out by using the inclined surface of the slider 1102, realizing the function of automatic blanking after marking. The electromagnetic braking motor 14 can keep the position of the side plate 15 fixed after adjustment, and by changing the initial angle of the side plate 15, the front and rear initial positions of the overall marking of the device can be adjusted.

[0052] Although the present invention has been described above with reference to the embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automated laser marking machine for toothbrush production, comprising a conveyor belt, characterized in that: Above the conveyor belt, there is a marking machine housing. An activity plate is slidably installed on the marking machine housing. A laser marking head is slidably installed inside the activity plate. An adjustment component is installed on the laser marking head. A moving groove is formed on the conveyor belt. A connecting plate is slidably installed inside the moving groove. A damping shaft is fixedly arranged on the connecting plate. A first support plate, a second support plate, and a third support plate are installed on the damping shaft. Placing grooves are formed on the first support plate, the second support plate, and the third support plate. The front and rear sides of the connecting plate are respectively connected to the conveyor belt through a first elastic cord and a second elastic cord. A pushing component is arranged on the conveyor belt. A first electric push rod is installed on the connecting plate. An adapter plate is connected to the first electric push rod. The adapter plate and the third support plate are fixedly connected. A power supply is arranged below the marking machine housing. A first conductive contact piece is installed on the power supply. A second conductive contact piece is installed on the marking machine housing. A first spring is installed between the first support plate and the second support plate. A first connecting rod and a second connecting rod are fixedly installed on the connecting plate. A side plate is installed on the marking machine housing. A triggering component is installed on the side plate; The pushing component includes openings formed at the bottoms of the first support plate, the second support plate, and the third support plate. Sliders are slidably installed on both the first support plate and the second support plate. A convex block is fixedly connected to the conveyor belt; The adjustment component includes a fixing block welded above the laser marking head. A ball shaft is rotatably installed inside the fixing block. A sliding rod penetrates through the ball shaft. Blocks are fixedly connected to both ends of the sliding rod.

2. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: The length of the moving groove is greater than the length of the connecting plate. The damping shaft is rotatably connected to the first support plate. The damping shaft is slidably connected to the second support plate and the third support plate. The first connecting rod is slidably connected to the third support plate.

3. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: A second groove is formed on the first support plate. A docking rod for docking with the second groove is fixedly connected to the second support plate. A first groove for placing the first spring is formed on the second support plate. The connection methods between the first support plate and the leftmost second support plate, the rightmost second support plate, the third support plate, and between adjacent two second support plates are all the same.

4. An automatic laser marking machine for toothbrush production according to claim 1, characterized in that: The first elastic cord and the second elastic cord are evenly distributed on the front and rear sides of the connecting plate. The inner wall of the moving groove and the outer wall of the connecting plate are in mutual contact.

5. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: An inclined plane is arranged above the slider. The height of the slider is less than the height of the opening. The opening extends to the front side of the placing grooves on the first support plate, the second support plate, and the third support plate.

6. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: The side plate is connected to the output shaft of the electromagnetic braking motor. The output shaft of the electromagnetic braking motor is fixedly connected to the marking machine housing.

7. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: The triggering component includes a connecting cylinder fixedly installed on the side plate. A first rotating plate is rotatably installed on the connecting cylinder. A first scroll spring is installed between the connecting cylinder and the first rotating plate. A damping ring is fixedly connected to the first rotating plate. A second rotating plate is rotatably installed on the damping ring. A second scroll spring is installed between the second rotating plate and the first rotating plate. The stiffness coefficient of the second scroll spring is greater than that of the first scroll spring.

8. An automated laser marking machine for toothbrush production according to claim 1, characterized in that: A second electric push rod is installed between the rightmost activity plate and the marking machine housing. Second springs are fixedly connected between adjacent two activity plates and between the leftmost activity plate and the marking machine housing.

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