A hair ring laser cutting device and a cutting method thereof

Abstract

The application discloses a hair ring laser cutting equipment and a cutting method thereof, and relates to the technical field of hair ring manufacturing. The equipment comprises a rack body, an upper support plate and a lower table plate arranged in the inner cavity of the rack body, a plurality of rotating shaft assemblies capable of rotating synchronously in the circumferential direction are arranged on the top of the lower table plate, the plurality of rotating shaft assemblies sequentially form a first station, a second station, a third station and a fourth station, and one end of the first station, the second station and the third station is respectively provided with a driving assembly for driving the rotating shaft assembly to rotate. The application can effectively prevent the edge curling problem caused by the existing cold knife cutting, ensure that there is no gap at the cutting position of the hair ring, and guarantee the service life and resistance to change of the hair ring. Meanwhile, the cutting equipment can produce more hair rings with lower cost in the same length of hair ring blanks. In addition, the cutting process does not need to rely on manual operation, which saves time and effort, effectively guarantees the yield and efficiency of batch production, and realizes the continuous and large-scale production of the hair ring cutting process.

Description

Technical Field

[0001] This invention relates to the field of hair tie manufacturing technology, specifically to a hair tie laser cutting device and its cutting method. Background Technology

[0002] Hair ties are common head ornaments in daily life, mainly used to tidy up hair for a more aesthetically pleasing look. Currently, the mainstream production process for hair ties typically involves first preparing continuous, tubular blanks, and then cutting the long blanks into individual hair ties of a predetermined width.

[0003] However, current mass production processes generally employ traditional mechanical cold-blade cutting, a process with numerous inherent drawbacks in practical applications. For instance, cold-blade cutting relies on mechanical blades to rigidly cut fabric fibers, resulting in significant blade wear and high equipment maintenance costs. Furthermore, it easily causes fiber adhesion, fuzzing, and lint buildup at the cut edges, leading to curling and frayed edges on the finished product, resulting in poor product appearance consistency and low yield. Simultaneously, due to the limitations of the cold-blade cutting structure and process characteristics, the finished product's cutting width accuracy is insufficient, and specification adjustment is restricted, making it difficult to adapt to the demands of multi-specification, high-precision production. Subsequent secondary processing steps such as trimming and edge straightening are often required, increasing production steps and labor costs, resulting in low production efficiency and failing to meet the current market demands for high-quality, diversified, and high-efficiency production. Summary of the Invention

[0004] The purpose of this invention is to provide a laser cutting device and method for hair ties to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A hair tie laser cutting device includes a frame body and an upper support plate and a lower platform plate disposed in the inner cavity of the frame body. The top of the lower platform plate is provided with a plurality of rotating shaft assemblies capable of synchronous circumferential rotation. The plurality of rotating shaft assemblies sequentially form a first station, a second station, a third station, and a fourth station. One end of the first station, the second station, and the third station is respectively provided with a drive assembly for driving the rotating shaft assemblies to rotate. Above the first station, the second station, and the third station, a laser cutting mechanism is respectively mounted on the upper support plate. The laser cutting mechanism is used to laser cut the hair tie blanks on the rotating shaft assemblies. At the end of the first station away from the drive assembly, a pulling assembly, a feeding assembly, and a conveying assembly are sequentially provided. The conveying assembly is used to convey the hair tie blanks to the feeding assembly, and the pulling assembly is used to convey the hair tie blanks on the feeding assembly to the rotating shaft assembly of the first station for laser cutting by the laser cutting mechanism.

[0007] Preferably, the top of the lower platform is provided with a turntable for being driven by a first servo motor. Each of the rotating shaft assemblies includes a shaft rotatably mounted on the turntable and a driven gear connected to one end of the shaft. The end of the shaft away from the driven gear is provided with a docking slot for engaging with a feeding assembly. The outer peripheral wall of the shaft is provided with a plurality of auxiliary slots at equal intervals. The auxiliary slots are used to cooperate with the unloading mechanism to unload the finished hair rings on the fourth station.

[0008] Preferably, a support frame coaxially arranged with the turntable is fixedly installed on the top of the lower platform. Each drive component includes a pressing cylinder fixedly installed on the support frame, a second servo motor connected to the output end of the pressing cylinder, and a drive gear fixedly connected to the output end of the second servo motor. The drive gear is used to mesh or disengage with the driven gear under the drive of the pressing cylinder.

[0009] Preferably, each of the laser cutting mechanisms includes a support plate and an adjustment bracket connected to the upper support plate, a first linear module fixedly mounted on the support plate, a laser head and an industrial camera mounted on the first slide plate of the first linear module, and a light refraction plate fixedly mounted on the adjustment bracket. The top of the upper support plate is provided with multiple laser generators, each of which introduces laser light into the laser head through a corresponding light refraction plate. The laser head is used to output laser light to cut the hair ring blank on the shaft.

[0010] Preferably, the feeding assembly includes a roller support plate fixedly installed on the top of the lower platform, a roller assembly disposed on the roller support plate, a third servo motor for driving the roller assembly to rotate, and a material frame located inside the machine frame. When the roller assembly rotates, it is used to convey the hair ring blanks in the material frame to the feeding assembly.

[0011] Preferably, the feeding assembly includes a feeding cylinder fixedly installed on the top of the lower platform, a sliding frame connected to the output end of the feeding cylinder and slidably mounted on the top of the lower platform, a first pneumatic gripper installed on the sliding frame, and short clamping parts respectively connected to the two clamping ends of the first pneumatic gripper.

[0012] The feeding assembly also includes a docking shaft for being disposed between the two short coupling parts. One end of the docking shaft is connected to a connector for engaging with the docking slot, and the end of the hair tie blank is used to be fitted onto the docking shaft to complete the feeding operation.

[0013] Preferably, the material pulling assembly includes a second linear module connected to the top of the lower platform, a second pneumatic gripper mounted on the second slide plate of the second linear module, and long clamping members respectively connected to the two clamping ends of the second pneumatic gripper, and the channel formed by the two long clamping members when they are in contact with each other is arranged coaxially with the docking shaft and the shaft body.

[0014] Preferably, the assembly further includes a lifting cylinder located between the pulling assembly and the feeding assembly, and a dust collection device for dust collection at the first station, the second station and the third station, wherein a non-powered roller is connected to the output end of the lifting cylinder.

[0015] The present invention also provides a cutting method using the hair tie laser cutting equipment described above, comprising the following steps:

[0016] S1. After placing the whole roll of hair tie blank in the material frame, manually pull one end of the hair tie blank around the roller assembly and completely fit it onto the docking shaft; then drive the two short clamping parts to close together through the first pneumatic gripper to clamp and position the hair tie blank at the tail end on the docking shaft.

[0017] S2. The extension of the feeding cylinder enables the connector at the front end of the docking shaft to engage with the docking slot of the rotating shaft assembly at the first station. Then, the second pneumatic gripper drives the two long clamping parts to close together to clamp and position the hair ring blank at the front end of the docking shaft. Subsequently, as the two short clamping parts separate and the second linear module moves, the hair ring blank can be fitted onto the outer circumference of the shaft at the first station, completing the fitting process.

[0018] S3. The downward cylinder corresponding to the first station extends to drive the drive gear to move down and mesh with the driven gear of the shaft; the upward cylinder pushes the unpowered roller against the surface of the trigger ring blank, the second pneumatic gripper drives the two long clamping parts to separate, the first linear module drives the industrial camera to move to take pictures and judge; then, when the second servo motor drives the shaft to rotate at a constant speed through gear transmission, the docking shaft can rotate synchronously, and the laser head can perform a circumferential laser cut on the outer periphery of the hair ring blank to obtain the blank segment sleeved on the shaft;

[0019] S4. Through the sequential reset of the shaft and the lifting cylinder, and the closing of the two short clamping parts, the feeding cylinder can be retracted to drive the butt joint to separate from the docking slot; then the pressing cylinder of the first station retracts and drives the drive gear to reset.

[0020] S5. The first servo motor drives the turntable to rotate, so that the rotating shaft assembly carrying the blank section can rotate to the second station.

[0021] The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station to obtain a billet segment;

[0022] The second station follows the processes of gear meshing, visual positioning, and shaft rotation, allowing the laser head at the second station to perform two circumferential laser cuts on the blank section to obtain three semi-finished hair ties.

[0023] S6. The lowering cylinder of the second station retracts and drives the drive gear to reset; the first servo motor drives the turntable to rotate, causing the semi-finished hair ring on the second station to rotate to the third station;

[0024] The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station to obtain a billet segment; the billet segment is then continuously processed by two circumferential cutting operations at the second station.

[0025] The third station, following the processes of gear meshing, visual positioning, and shaft rotation, allows the laser head at the third station to perform three circumferential laser cuts on the blank segment, dividing the hair tie blank segment into six independent finished hair ties.

[0026] S7. The downward cylinder of the third station retracts and drives the drive gear to reset; the first servo motor drives the turntable to rotate, so that the finished hair ring on the third station rotates to the fourth station.

[0027] The equipment executes in parallel: the first station continuously performs processes S2 to S4; the second station continuously performs two cutting processes; and the third station continuously performs three cutting processes.

[0028] The fourth station's shaft, in conjunction with an external unloading mechanism, removes six finished hair rings from the shaft at once; this process is repeated to achieve uninterrupted mass production.

[0029] Preferably, during the entire process of laser circumferential cutting at the first, second, and third workstations, the dust collection equipment continuously absorbs and removes the smoke and debris generated during cutting.

[0030] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0031] This invention provides an automated mass production equipment for laser cutting of hair ties, which effectively prevents edge curling caused by mechanical cold knife cutting, ensuring no gaps at the cut, and guaranteeing the lifespan and resistance to deformation of the hair ties. Simultaneously, this cutting equipment, relying on the combination of laser and linear module, produces hair ties with smaller widths, allowing for the production of more hair ties from the same length of blank material, resulting in lower costs. Furthermore, this structure allows for precise adjustment of cutting specifications, meeting the diverse and accurate requirements of hair tie cutting. In addition, this equipment eliminates the need for manual secondary processing during the cutting process, saving time and labor, effectively ensuring high yield and efficiency in mass production, and realizing continuous and large-scale production of hair ties. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a partial structural diagram of the lower platform of the present invention;

[0034] Figure 3 for Figure 2 A schematic diagram of the rear view structure;

[0035] Figure 4 for Figure 2 Enlarged structural diagram at point A in the diagram;

[0036] Figure 5 This is a schematic diagram of the cooperation structure between each workstation and the corresponding drive component in this invention;

[0037] Figure 6 This is a schematic diagram of the rotating shaft assembly and docking shaft structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the laser cutting mechanism and each workstation structure of the present invention.

[0039] In the diagram: 1. Frame body; 2. Upper support plate; 3. Lower platform plate;

[0040] 4. Shaft assembly; 41. Shaft body; 42. Driven gear; 43. Connecting groove; 44. Auxiliary groove;

[0041] 5. Drive components; 51. Downward-pressing cylinder; 52. Second servo motor; 53. Drive gear;

[0042] 6. Laser cutting mechanism; 61. Support plate; 62. Adjustment bracket; 63. First linear module; 64. First slide plate; 65. Laser head; 66. Industrial camera; 67. Light refraction plate;

[0043] 7. Material pulling assembly; 71. Second linear module; 72. Second pneumatic gripper; 73. Long clamping component; 74. Second slide plate;

[0044] 8. Feeding assembly; 81. Feeding cylinder; 82. Sliding frame; 83. First pneumatic gripper; 84. Short clamping component; 85. Docking shaft; 86. Butt joint;

[0045] 9. Material conveying assembly; 91. Roller support plate; 92. Roller assembly; 93. Third servo motor;

[0046] 10. First servo motor; 11. Turntable; 12. Support frame; 13. Laser generator; 14. Lifting cylinder; 15. Dust collection device; 16. Non-powered roller;

[0047] 100, First workstation; 200, Second workstation; 300, Third workstation; 400, Fourth workstation. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to embodiments:

[0049] Example 1

[0050] like Figure 1-7 As shown, the present invention provides a hair tie laser cutting device, including a frame body 1 and an upper support plate 2 and a lower platform plate 3 disposed in the inner cavity of the frame body 1. The top of the lower platform plate 3 is provided with a plurality of rotating shaft assemblies 4 capable of synchronous circumferential rotation. The plurality of rotating shaft assemblies 4 sequentially form a first station 100, a second station 200, a third station 300 and a fourth station 400. One end of the first station 100, the second station 200 and the third station 300 is respectively provided with a driving assembly 5 for driving the rotating shaft assembly 4 to rotate. The first station 100, the second station 200 and the third station 300 are respectively provided with a driving assembly 5 for driving the rotating shaft assembly 4 to rotate. Above the first station 100 and the third station 300, laser cutting mechanisms 6 are respectively installed on the upper support plate 2. The laser cutting mechanisms 6 are used to laser cut the hair tie blanks on the rotating shaft assembly 4. At the end of the first station 100 furthest from the drive assembly 5, a pulling assembly 7, a feeding assembly 8, and a conveying assembly 9 are sequentially arranged. The conveying assembly 9 is used to transport the hair tie blanks to the feeding assembly 8, and the pulling assembly 7 is used to transport the hair tie blanks from the feeding assembly 8 to the rotating shaft assembly 4 of the first station 100 for laser cutting by the laser cutting mechanism 6. This invention provides an automated mass production processing equipment for laser cutting of hair ties. The cutting process eliminates the need for manual intervention in feeding and alignment, effectively ensuring the yield and efficiency of mass production.

[0051] Furthermore, such as Figure 2 and Figure 6 As shown, the top of the lower platform 3 is provided with a turntable 11 for driving by the first servo motor 10. The transmission structure between the first servo motor 10 and the turntable 11 is not described in detail here. Those skilled in the art can use it according to the conventional technology of existing automated multi-station rotation. Each rotating shaft assembly 4 includes a shaft 41 rotatably mounted on the turntable 11 and a driven gear 42 connected to one end of the shaft 41. The end of the shaft 41 away from the driven gear 42 is provided with a docking slot 43 for engaging with the feeding assembly 8. Multiple auxiliary slots 44 are provided at equal intervals on the outer peripheral wall of the shaft 41. The auxiliary slots 44 are used to cooperate with the unloading mechanism to unload the finished hair rings on the fourth station 400.

[0052] The components of the feeding mechanism will not be described in detail here; however, it should be noted that the number of feeding shafts used to remove the finished hair ties is the same as the number of auxiliary grooves 44 on the shaft body 41. The feeding shafts can move back and forth inside the auxiliary grooves 44, and the back and forth movement of the feeding shafts can be driven by the moving components in the feeding mechanism. In addition, multiple feeding shafts can also move together or apart synchronously around the axis of the shaft body 41. When multiple feeding shafts are opened synchronously, the finished hair ties on the shaft body 41 can be opened so that the finished hair ties can be smoothly removed from the shaft body 41, thereby improving production efficiency.

[0053] like Figure 5 As shown, each station on the turntable 11 is provided with a bearing seat, and one end of the shaft 41 of each rotating shaft assembly 4 is rotatably mounted on the corresponding bearing seat; and each bearing seat can also be provided with a buffer assembly. The buffer assembly can be assembled with relatively simple components, such as buffer springs, guide rods and limit blocks; the buffer assembly is used to buffer the downward second servo motor 52, so that the driving gear 53 smoothly engages with the driven gear 42, avoiding hard impact of the gears and preventing damage to the gear teeth.

[0054] Furthermore, such as Figure 2 , Figure 5 and Figure 7 As shown, a support frame 12 coaxially arranged with the turntable 11 is fixedly installed on the top of the lower platform 3. Each drive component 5 includes a pressing cylinder 51 fixedly installed on the support frame 12, a second servo motor 52 connected to the output end of the pressing cylinder 51, and a drive gear 53 fixedly connected to the output end of the second servo motor 52. The drive gear 53 is used to mesh or disengage with the driven gear 42 under the drive of the pressing cylinder 51.

[0055] Among them, vertical slide rails can be fixedly installed on the surfaces of the support frame 12 corresponding to the first station 100, the second station 200 and the third station 300 respectively. A sliding support can be slidably mounted on each vertical slide rail. The second servo motor 52 is fixedly installed on the sliding support to ensure the stable lifting and lowering of the second servo motor 52. The output end of the pressing cylinder 51 is fixedly connected to the sliding support. The drive gear 53 is installed on the sliding support through the transmission shaft to ensure that the second servo motor 52 stably drives the rotation of the drive gear 53.

[0056] Furthermore, such as Figure 2 and Figure 7As shown, each laser cutting mechanism 6 includes a support plate 61 and an adjusting bracket 62 connected to the upper support plate 2, a first linear module 63 fixedly installed on the support plate 61, a laser head 65 and an industrial camera 66 installed on the first slide plate 64 of the first linear module 63, and a light refraction plate 67 fixedly installed on the adjusting bracket 62. The top of the upper support plate 2 is provided with multiple laser generators 13. Each laser generator 13 introduces laser light into the laser head 65 through the corresponding light refraction plate 67. The laser head 65 is used to output laser light to cut the hair ring blank on the shaft 41.

[0057] Specifically, there are three laser generators 13, which are used to provide laser light sources for the laser heads 65 of the first station 100, the second station 200, and the third station 300, respectively. The present invention also has a laser cooling mechanism (not shown in the figure).

[0058] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the feeding assembly 9 includes a roller support plate 91 fixedly mounted on the top of the lower platform 3, a roller assembly 92 disposed on the roller support plate 91, a third servo motor 93 for driving the roller assembly 92 to rotate, and a material frame (not shown in the figure) located inside the frame body 1. When the roller assembly 92 rotates, it is used to convey the hair tie blanks in the material frame to the feeding assembly 8. The roller assembly 92 is used to ensure the consistency of the hair tie blanks' orientation.

[0059] Furthermore, such as Figure 2 and Figure 4 As shown, the feeding assembly 8 includes a feeding cylinder 81 fixedly installed on the top of the lower platform 3, a sliding frame 82 connected to the output end of the feeding cylinder 81 and slidably mounted on the top of the lower platform 3, a first pneumatic gripper 83 mounted on the sliding frame 82, and short clamping parts 84 respectively connected to the two clamping ends of the first pneumatic gripper 83; wherein, a guide rail is installed on the top of the lower platform 3, and a slide frame is fixedly connected to the guide rail, the output end of the feeding cylinder 81 is connected to the slide frame, and the first pneumatic gripper 83 is fixedly installed on the slide frame; thus, when the feeding cylinder 81 is started, the slide frame can stably drive the first pneumatic gripper 83 to move, ensuring that the hair tie blank can be fed to the first station 100.

[0060] Furthermore, such as Figure 6 As shown, the feeding assembly 8 also includes a docking shaft 85 disposed between the two short coupling parts 84. One end of the docking shaft 85 is connected to a connector 86 for mating with the docking slot 43, and the end of the hair tie blank is fitted onto the docking shaft 85 to complete the feeding operation.

[0061] Specifically, when the connector 86 is connected to the docking slot 43, the docking slot 43 can be used to restrict the circumferential movement of the connector 86. Thus, when the shaft 41 rotates, it can synchronously drive the docking shaft 85 to rotate, thereby realizing the rotation of the end of the whole roll of hair tie blank. This facilitates the laser head 65 to perform a circumferential laser cut on the outer periphery of the hair tie blank to obtain the blank segment sleeved on the shaft 41.

[0062] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the feeding assembly 7 includes a second linear module 71 connected to the top of the lower platform 3, a second pneumatic gripper 72 mounted on the second slide plate 74 of the second linear module 71, and long clamping members 73 respectively connected to the two clamping ends of the second pneumatic gripper 72. The channel formed by the two long clamping members 73 when they are in contact with each other is coaxially arranged with the docking shaft 85 and the shaft body 41. When the two long clamping members 73 clamp the ends of the hair tie blank through the activation of the second pneumatic gripper 72, the operation of the second linear module 71 enables the hair tie blank to be driven to the shaft body 41, ensuring accurate feeding of the blank.

[0063] Furthermore, such as Figure 2 and Figure 4 As shown, it also includes a lifting cylinder 14 located between the material pulling assembly 7 and the feeding assembly 8, and a dust collection device 15 for dust collection of the first station 100, the second station 200 and the third station 300, and a non-powered roller 16 is connected to the output end of the lifting cylinder 14.

[0064] Specifically, when the two short clamping parts 84 and the two long clamping parts 73 lose their clamping force on the docking shaft 85 and the blank on the docking shaft 85, the lifting cylinder 14 pushes the unpowered roller 16 to rise, so that the unpowered roller 16 can stably support the docking shaft 85. This facilitates the shaft body 41 to synchronously drive the docking shaft 85 to rotate, and the docking shaft 85 can rotate stably to achieve circumferential cutting of the blank.

[0065] The dust collection device 15 can be a general-purpose device in the automation industry, which may include a dust collection nozzle and components for generating suction from the dust collection nozzle. As one embodiment, the dust collection nozzle can be fixedly mounted on the first slide plate 64 to move synchronously with the laser head 65, thereby enabling real-time adsorption and removal of smoke and debris generated during cutting.

[0066] Example 2

[0067] like Figure 1-7 As shown, the present invention provides a cutting method for a hair tie laser cutting device, specifically including the following steps:

[0068] S1. After placing the whole roll of hair tie blank in the material frame, manually pull one end of the hair tie blank around the roller assembly 92 and completely fit it onto the docking shaft 85; then drive the two short clamping parts 84 to close together through the first pneumatic gripper 83 to clamp and position the hair tie blank at the tail end on the docking shaft 85.

[0069] S2. By extending the feeding cylinder 81, the butt joint 86 at the front end of the docking shaft 85 can be engaged with the docking slot 43 of the rotating shaft assembly 4 on the first station 100. Then, the second pneumatic gripper 72 drives the two long clamping parts 73 to close together to clamp and position the hair ring blank at the front end of the docking shaft 85. Subsequently, with the separation of the two short clamping parts 84 and the movement of the second linear module 71, the hair ring blank can be fitted onto the outer circumference of the shaft body 41 of the first station 100, completing the fitting without manual intervention.

[0070] S3. The downward cylinder 51 corresponding to the first work station 100 extends to drive the drive gear 53 to move down and mesh with the driven gear 42 of the shaft 41; the rising cylinder 14 pushes the unpowered roller 16 to abut the surface of the hair ring blank, the second pneumatic gripper 72 drives the two long clamping parts 73 to separate, the first linear module 63 drives the industrial camera 66 to move to take pictures and judge; then, when the second servo motor 52 drives the shaft 41 to rotate at a constant speed through gear transmission, the docking shaft 85 can rotate synchronously, and the laser head 65 can perform a circumferential laser cut on the outer periphery of the hair ring blank to obtain a blank segment sleeved on the shaft 41, which has six trademark LOGOs;

[0071] S4. Through the sequential reset of the shaft 41 and the lifting cylinder 14, and the closing of the two short clamping parts 84, the feeding cylinder 81 can be retracted to drive the butt joint 86 to separate from the docking slot 43; then the pressing cylinder 51 of the first station 100 retracts and drives the drive gear 53 to reset.

[0072] S5. The first servo motor 10 drives the turntable 11 to rotate, so that the rotating shaft assembly 4 carrying the blank section can rotate to the second station 200.

[0073] The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station 100 to obtain a billet segment;

[0074] According to the process of gear meshing, visual positioning and shaft 41 rotation, the laser head 65 of the second station 200 can perform two circumferential laser cuts on the blank section to obtain three semi-finished hair ties, that is, two are divided into three.

[0075] S6. The pressing cylinder 51 of the second station 200 retracts and drives the drive gear 53 to reset; the first servo motor 10 drives the turntable 11 to rotate, so that the semi-finished hair ring on the second station 200 rotates to the third station 300.

[0076] The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station 100 to obtain a billet segment; the billet segment is then continuously processed by two circumferential cutting operations at the second station 200.

[0077] According to the process of gear meshing, visual positioning and shaft 41 rotation, the laser head 65 of the third station 300 can perform three circumferential laser cuts on the blank segment, so that the hair tie blank segment is divided into six independent finished hair ties.

[0078] S7, the pressing cylinder 51 of the third station 300 retracts and drives the drive gear 53 to reset; the first servo motor 10 drives the turntable 11 to rotate, so that the finished hair ring on the third station 300 rotates to the fourth station 400.

[0079] The equipment executes in parallel: Station 100 continuously performs processes S2 to S4; Station 200 continuously performs two cutting processes; Station 300 continuously performs three cutting processes.

[0080] The shaft 41 of the fourth station 400, in conjunction with the external unloading mechanism, removes six finished hair rings from the shaft 41 at once, dividing them into three parts; this process is repeated to achieve uninterrupted mass production.

[0081] It is worth noting that, in order to display the trademark logo on the finished hair ties, the hair tie blanks are usually marked with a logo. The industrial camera 66 can accurately determine the blank segment to be cut by recognizing the logo. The embodiment in this article takes six logos as the standard, so that after the rotating shaft assembly 4 travels around each station to complete one circle, six finished hair ties can be obtained without the need for secondary manual processing.

[0082] Regarding the feeding process in S2, as another implementation method, when the second linear module 71 moves to drive the hair tie blank to be fitted onto the shaft 41 of the first station 100, the industrial camera 66 can acquire the LOGO on the hair tie blank in real time, so as to ensure that the second linear module 71 can stop moving through the data feedback of the industrial camera 66 when there is no set feed stroke.

[0083] Furthermore, in the second station 200 and the third station 300, the processes of gear meshing, visual positioning, and shaft 41 rotation are the same as those in the first station 100.

[0084] Furthermore, throughout the entire process of laser circumferential cutting operations performed at the first station 100, the second station 200, and the third station 300, the dust collection device 15 continuously absorbs and removes the smoke and debris generated during cutting.

[0085] In summary, this invention provides an automated mass production equipment for laser cutting of hair ties, which effectively prevents edge curling caused by mechanical cold knife cutting, ensuring no gaps at the cut edges and guaranteeing the lifespan and resistance to deformation of the hair ties. Simultaneously, this cutting equipment, relying on the combination of laser and linear module, produces hair ties with smaller widths, allowing for the production of more hair ties from the same length of blank material, resulting in lower costs. Furthermore, this structure allows for precise adjustment of cutting specifications, meeting the diverse and precise requirements of hair tie cutting. In addition, this equipment eliminates the need for manual secondary processing during the cutting process, saving time and labor, effectively ensuring high yield and efficiency in mass production, and realizing continuous and large-scale production of hair ties.

[0086] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0087] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A laser cutting device for hair ties, comprising a frame body and an upper support plate and a lower platform plate disposed within the inner cavity of the frame body, characterized in that, The top of the lower platform is provided with multiple rotating shaft assemblies capable of synchronous circumferential rotation. These rotating shaft assemblies sequentially form a first station, a second station, a third station, and a fourth station. Each of the first, second, and third stations has a drive assembly at one end for driving the rotating shaft assemblies to rotate. Above each of the first, second, and third stations, a laser cutting mechanism mounted on an upper support plate is provided. The laser cutting mechanism is used to laser cut the hair tie blanks on the rotating shaft assemblies. At the end of the first station away from the drive assembly, a pulling assembly, a feeding assembly, and a conveying assembly are sequentially provided. The conveying assembly is used to transport the hair tie blanks to the feeding assembly, and the pulling assembly is used to transport the hair tie blanks on the feeding assembly to the rotating shaft assembly of the first station for laser cutting by the laser cutting mechanism.

2. The hair tie laser cutting equipment according to claim 1, characterized in that: The top of the lower platform is provided with a turntable for being driven by a first servo motor. Each of the rotating shaft assemblies includes a shaft rotatably mounted on the turntable and a driven gear connected to one end of the shaft. The end of the shaft away from the driven gear is provided with a docking slot for engaging with a feeding assembly. Multiple auxiliary slots are provided at equal intervals on the outer peripheral wall of the shaft. The auxiliary slots are used to cooperate with the unloading mechanism to unload the finished hair rings on the fourth station.

3. The hair tie laser cutting equipment according to claim 2, characterized in that: The top of the lower platform is fixedly mounted with a support frame coaxially arranged with the turntable. Each drive component includes a pressing cylinder fixedly mounted on the support frame, a second servo motor connected to the output end of the pressing cylinder, and a drive gear fixedly connected to the output end of the second servo motor. The drive gear is used to mesh or disengage with the driven gear under the drive of the pressing cylinder.

4. The hair tie laser cutting equipment according to claim 2, characterized in that: Each of the laser cutting mechanisms includes a support plate and an adjustment bracket connected to the upper support plate, a first linear module fixedly mounted on the support plate, a laser head and an industrial camera mounted on the first slide plate of the first linear module, and a light refraction plate fixedly mounted on the adjustment bracket. The top of the upper support plate is provided with multiple laser generators. Each laser generator introduces laser light into the laser head through a corresponding light refraction plate. The laser head is used to output laser light to cut the hair ring blank on the shaft.

5. The hair tie laser cutting equipment according to claim 1, characterized in that: The feeding assembly includes a roller support plate fixedly installed on the top of the lower platform, a roller assembly disposed on the roller support plate, a third servo motor for driving the roller assembly to rotate, and a material frame located inside the machine frame. When the roller assembly rotates, it is used to convey the hair ring blanks in the material frame to the feeding assembly.

6. The hair tie laser cutting equipment according to claim 2, characterized in that: The feeding assembly includes a feeding cylinder fixedly installed on the top of the lower platform, a sliding frame connected to the output end of the feeding cylinder and slidably mounted on the top of the lower platform, a first pneumatic gripper installed on the sliding frame, and short clamping parts respectively connected to the two clamping ends of the first pneumatic gripper. The feeding assembly also includes a docking shaft for being disposed between the two short coupling parts. One end of the docking shaft is connected to a connector for engaging with the docking slot, and the end of the hair tie blank is used to be fitted onto the docking shaft to complete the feeding operation.

7. The hair tie laser cutting equipment according to claim 6, characterized in that: The material pulling assembly includes a second linear module connected to the top of the lower platform, a second pneumatic gripper mounted on the second slide plate of the second linear module, and long clamping members respectively connected to the two clamping ends of the second pneumatic gripper. The channel formed by the two long clamping members when they are in contact with each other is arranged coaxially with the docking shaft and the shaft body.

8. The hair tie laser cutting equipment according to claim 1, characterized in that: It also includes a lifting cylinder located between the material pulling assembly and the material feeding assembly, and a dust collection device for dust removal and suction of the first station, the second station and the third station, and a non-powered roller is connected to the output end of the lifting cylinder.

9. A cutting method using the hair tie laser cutting equipment according to any one of claims 1-8, characterized in that: Includes the following steps: S1. After placing the whole roll of hair tie blank in the material frame, manually pull one end of the hair tie blank around the roller assembly and completely fit it onto the docking shaft; then drive the two short clamping parts to close together through the first pneumatic gripper to clamp and position the hair tie blank at the tail end on the docking shaft. S2. The extension of the feeding cylinder enables the connector at the front end of the docking shaft to engage with the docking slot of the rotating shaft assembly at the first station. Then, the second pneumatic gripper drives the two long clamping parts to close together to clamp and position the hair ring blank at the front end of the docking shaft. Subsequently, as the two short clamping parts separate and the second linear module moves, the hair ring blank can be fitted onto the outer circumference of the shaft at the first station, completing the fitting process. S3. The downward cylinder corresponding to the first station extends to drive the drive gear to move down and mesh with the driven gear of the shaft. The rising cylinder pushes the unpowered roller against the surface of the trigger ring blank, the second pneumatic gripper drives the two long clamping parts to separate, the first linear module drives the industrial camera to move to take pictures and judge; then the second servo motor drives the shaft to rotate at a constant speed through gear transmission, the docking shaft can rotate synchronously, and the laser head can perform a circumferential laser cut on the outer periphery of the hair ring blank to obtain the blank segment sleeved on the shaft. S4. Through the sequential reset of the shaft and the lifting cylinder, and the closing of the two short clamping parts, the feeding cylinder can be retracted to drive the butt joint to separate from the docking slot; then the pressing cylinder of the first station retracts and drives the drive gear to reset. S5. The first servo motor drives the turntable to rotate, so that the rotating shaft assembly carrying the blank section can rotate to the second station. The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station to obtain a billet segment; The second station follows the processes of gear meshing, visual positioning, and shaft rotation, allowing the laser head at the second station to perform two circumferential laser cuts on the blank section to obtain three semi-finished hair ties. S6. The lowering cylinder of the second station retracts and drives the drive gear to reset; the first servo motor drives the turntable to rotate, causing the semi-finished hair ring on the second station to rotate to the third station; The equipment operates in parallel: the new billet is processed by repeating steps S2 to S4 at the first station to obtain a billet segment; the billet segment is then continuously processed by two circumferential cutting operations at the second station. The third station, following the processes of gear meshing, visual positioning, and shaft rotation, allows the laser head at the third station to perform three circumferential laser cuts on the blank segment, dividing the hair tie blank segment into six independent finished hair ties. S7. The downward cylinder of the third station retracts and drives the drive gear to reset; the first servo motor drives the turntable to rotate, so that the finished hair ring on the third station rotates to the fourth station. The equipment executes in parallel: the first station continuously performs processes S2 to S4; the second station continuously performs two cutting processes; and the third station continuously performs three cutting processes. The fourth station's shaft, in conjunction with an external unloading mechanism, removes six finished hair rings from the shaft at once; this process is repeated to achieve uninterrupted mass production.

10. The cutting method according to claim 9, characterized in that: Throughout the laser circumferential cutting process at the first, second, and third workstations, the dust collection equipment continuously absorbs and removes the smoke and debris generated during the cutting process.

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