A laser-based thermos cup blank separation device

Abstract

This invention relates to the field of laser cutting of thermos cups, and discloses a thermos cup blank separation device based on laser cup separation, including a cup blank laser cutting machine, a tube clamping and rotating structure, a tube clamping and pushing mechanism, a guide rail assembly, and a material collection mechanism. The cup blank laser cutting machine is equipped with a laser cutting section and a processing platform. The tube clamping and rotating structure includes a concentric positioning structure and a rotating structure, and the tube clamping and pushing mechanism is slidably mounted on the guide rail assembly. During operation, the tube clamping and pushing mechanism clamps the blank tube, and the guide rail assembly drives it to be fed into the processing platform through the feeding window; the concentric positioning structure of the tube clamping and rotating structure clamps the blank tube synchronously at four points and positions it concentrically, the rotating structure drives the blank tube to rotate axially, and the laser cutting section emits a fixed beam to complete the ring cutting; after cutting, the blank is collected after being buffered by the material collection mechanism. This equipment solves the problems of clamping eccentricity, motion interference, and material damage in traditional equipment, improves cutting accuracy and efficiency, significantly increases the finished product qualification rate, and is suitable for continuous processing of multiple specifications of blanks.

Description

Technical Field

[0001] This invention relates to the field of laser cutting of thermos cups, specifically to a thermos cup blank separation device based on laser cup division. Background Technology

[0002] Insulated cups, with their excellent heat retention performance, have become common utensils in daily life and industrial settings. In their production process, the precise separation of the blank tube is one of the core processes determining the quality of the finished product. Insulated cup blanks are typically made from long, strip-shaped metal tubes, which need to be cut into independent sections according to the designed height before subsequent processing such as necking, welding, and polishing. As consumers' demands for the smoothness and dimensional accuracy of insulated cups continue to increase, traditional mechanical cutting methods, due to their numerous burrs and large dimensional errors, have gradually been replaced by laser cutting. Laser cutting, with its advantages of a small heat-affected zone and smooth cuts, has become the mainstream technology for blank separation. The core of achieving precise and efficient laser cutting lies in providing a stable clamping mechanism, synchronous rotation, and a precise feeding coordination mechanism for the blank tube.

[0003] Currently, laser cutting still presents several problems when used for separating thermos cup blanks: First, the concentricity of the blank tube clamping is insufficient. Traditional clamping mechanisms often use double-sided single-point clamping, which easily leads to the offset of the blank tube axis from the rotation center, resulting in an elliptical laser cutting trajectory and a cutting edge tilt error of over 0.5mm, requiring an additional leveling process. Second, there is interference between the rotation and feeding motions. In some equipment, the rotational driving force of the blank tube and the lateral feeding force interfere with each other, causing feeding jams or rotational speed fluctuations. This not only reduces processing efficiency but may also cause ripples in the cutting edge due to uneven cutting speed. To address these issues, we propose a thermos cup blank separation device based on laser cup division. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a laser-based cup-separating device for thermos cup blanks, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a thermos cup blank separation device based on laser cup division, comprising:

[0006] The cup blank laser cutting machine has a laser cutting part with a laser cutting head at the top, an open processing platform in the middle of the cup blank laser cutting machine located below the laser cutting part, and the interior of the cup blank laser cutting machine corresponding to the processing platform is hollow. The side of the cup blank laser cutting machine has a feeding window that connects to the processing platform. The processing platform has a guide rail opening slot leading to the feeding window, and the bottom center of the guide rail opening slot corresponding to the feeding window is open.

[0007] The tube clamping and rotating structure is located in the middle of the processing platform. The tube clamping and rotating structure consists of a concentric positioning structure and a rotating structure. The concentric positioning structure is used to clamp and fix the end of the thermos cup blank tube to be cut. The concentric positioning structure is assembled in the rotating structure to give the thermos cup blank tube axial rotational freedom. The overall transverse axis of the tube clamping and rotating structure intersects perpendicularly with the vertical axis of the laser cutting head in the laser cutting section.

[0008] The rectangular feeding groove is located directly below the laser cutting head in the laser cutting section and on one side of the clamping tube rotating structure. A material gathering mechanism is provided in and below the rectangular feeding groove for collecting and removing the cut and separated blanks. The rectangular feeding groove and the guide rail opening groove are located on opposite sides of the clamping tube rotating structure.

[0009] The tube clamping and pushing mechanism is located on the outside of the cup blank laser cutting machine, and its overall axis is on the same horizontal line as the overall axis of the tube clamping and rotating structure. The processing platform is provided with a guide rail group that extends outward through the feeding window. The tube clamping and pushing mechanism is slidably mounted on the guide rail group. The tube clamping and pushing mechanism is used to clamp and fix the outermost end of the thermos cup blank tube and make the thermos cup blank tube have a lateral displacement degree of freedom along the center line of the processing platform.

[0010] The thermos cup blank tube has axial rotational freedom in the tube clamping and pushing mechanism, and lateral displacement freedom in the tube clamping rotation structure.

[0011] Preferably, the rotating structure of the clamping tube includes a base ring, a drive wheel, a micro servo motor, a clamping ring limiting component, and a rotating ring. A central groove is provided in the middle of the processing platform. An integrated base component is fixed at the bottom end of the base ring, and the base component is fixedly installed at the center of the bottom inner wall of the central groove.

[0012] At least four sets of drive wheels are rotatably mounted on one side of the base ring, and the multiple sets of drive wheels are distributed in a ring at equal intervals. On the other side of the base ring, a micro servo motor is fixedly mounted at the position corresponding to each set of drive wheels, and the output shaft of each micro servo motor passes through the outer side of the base ring and is fixedly connected to each set of drive wheels.

[0013] The rotating ring is rotatably engaged in multiple sets of driving wheels, which are in contact with the outer ring surface of the rotating ring. The center of the rotating ring and the center of the base ring are located on the same horizontal axis. The concentric positioning structure is set in the rotating ring.

[0014] The base ring end face is fixedly installed with clamping ring limiting members on both sides of the rotating ring. The clamping ring limiting members on both sides are symmetrical and the inner surface is an arc shape adapted to the rotating ring. The cross-section of the clamping ring limiting member is a horizontal L-shape.

[0015] Preferably, multiple hemispherical grooves are provided on the ring end faces and the inner wall of the arc between the base ring and the clamping ring limiting member, which are opposite to and parallel to each other. Each hemispherical groove is embedded with a spherical rotor with a protruding surface. The spherical rotor has a omnidirectional rotational freedom, and the spherical rotor on the base ring and the spherical rotor on the clamping ring limiting member are respectively attached to the two ring end faces of the rotating ring.

[0016] Preferably, the concentric positioning structure includes a tube clamping limiting ring, a gear ring, a tube clamping arm, and a tube clamping wheel. The inner diameters of the base ring and the rotating ring are the same and both are larger than the outer diameter of the tube clamping limiting ring. The top and bottom ends of the tube clamping limiting ring are both fixed with an integrated arc plate, and the arc plate is in the arc shape that fits the tube clamping limiting ring and is perpendicular to the tube clamping limiting ring. The top and bottom ends of the inner ring surface of the rotating ring are both fixed with an integrated connector, and the opposite end faces of the upper and lower sets of connectors are respectively fixedly connected to the upper and lower sets of arc plates on the tube clamping limiting ring.

[0017] The center of the clamping ring and the center of the rotating ring are located on the same horizontal axis;

[0018] The inner diameter of the clamping tube limiting ring is the same as that of the gear ring. The upper and lower sets of arc plates are fixed with an integrated tooth bending component on the arc end side away from the clamping tube limiting ring. The upper and lower sets of tooth bending components are symmetrical to each other. The upper and lower sets of tooth bending components are fixed with an integrated arc-shaped bending part at their close ends. The tooth bending component has an L-shaped cross section.

[0019] The gear ring has a limiting ring groove on one side of its ring end face that is adapted to the arc-shaped bending part of the tooth bending component. The gear ring is engaged with the arc-shaped bending parts of the upper and lower sets of tooth bending components through the limiting ring groove. The center of the clamping tube limiting ring and the gear ring are located on the same horizontal axis, and the clamping tube limiting ring and the gear ring are parallel and spaced apart.

[0020] There are four clamping arms and four clamping wheels. The four clamping arms slide and fill the space between the clamping limiting ring and the gear ring. The four clamping arms are distributed in a ring at equal intervals. The ends of the four clamping arms that are close to each other are exposed in the inner ring area of ​​the clamping limiting ring and the gear ring. The ends of the four clamping arms that are close to each other are rotatably equipped with clamping wheels.

[0021] The clamping and limiting ring has four sets of equidistant limiting grooves arranged in a ring. The distribution positions of the clamping and limiting ring correspond one-to-one with the distribution positions of the clamping arms. Adjacent sets of limiting grooves and adjacent clamping arms are perpendicular to each other. The end of the clamping arm that is in contact with the clamping and limiting ring is fixedly connected to a limiting clip. The limiting clip on each clamping arm is correspondingly engaged with the end of the limiting groove near the inner ring.

[0022] Preferably, the four clamping wheels are perpendicular to the outer surface of the thermos cup blank tube and can rotate as the thermos cup blank tube is pushed forward and moved laterally.

[0023] Preferably, the concentric positioning structure further includes a convex edge plate, a servo motor, and a drive pinion. An integrated convex edge plate is fixedly provided on the side of the clamping tube limiting ring, and a drive pinion that meshes with the gear ring is rotatably mounted on the convex edge plate. A servo motor is fixedly mounted on the outer side wall of the convex edge plate away from the drive pinion, and the output shaft of the servo motor is fixedly connected to the drive pinion.

[0024] The gear ring has four sets of transmission arc grooves arranged in a ring on the end face of the clamping tube limiting ring. The two ends of the transmission arc grooves are close to the outer ring and inner ring of the gear ring, respectively. The end of the clamping tube arm that is in contact with the gear ring is fixedly connected to a transmission clip head that is aligned with the limiting clip head. The transmission clip head on each clamping tube arm is correspondingly clipped into the end of the transmission arc groove that is close to the inner ring.

[0025] The maximum width of the concentric positioning structure is smaller than the inner diameter of the rotating ring.

[0026] Preferably, in the tube clamping rotation structure, the centers of the base ring, rotating ring, tube clamping limiting ring, and gear ring are located on the same horizontal line as the center of the feeding window. The central groove is located between the unloading rectangular groove and the guide rail opening groove, and the horizontal center lines of the processing platform, the central groove, the unloading rectangular groove, and the guide rail opening groove are located on the same vertical plane.

[0027] Preferably, the guide rail assembly includes a guide rail horizontal plate, a limiting guide rail groove, a second servo motor, and a guide rail lead screw. Two sets of parallel guide rail horizontal plates are fixedly installed on the outer side wall of the cup blank laser cutting machine corresponding to the two sides of the guide rail opening groove. The spacing width of the two guide rail horizontal plates is consistent with the opening width of the guide rail opening groove. The side walls of the two guide rail horizontal plates are close to each other and aligned with the inner walls of the two sides of the guide rail opening groove. The inner walls of the two sides of the guide rail opening groove and the side walls of the two guide rail horizontal plates are provided with aligned and connected limiting guide rail grooves. A guide rail lead screw is rotatably installed between the inner walls of the two ends of one limiting guide rail groove. A limiting horizontal shaft is fixedly installed in the other limiting guide rail groove. A second servo motor is fixedly installed on the end side of the guide rail horizontal plate with the guide rail lead screw, and the output shaft of the second servo motor passes through the end side of the guide rail horizontal plate and is fixedly connected to the guide rail lead screw.

[0028] A horizontal displacement plate is slidably engaged in the limiting guide rail grooves on both sides, and the two ends of the displacement plate are threaded and slidably engaged with the guide rail screw and the limiting horizontal shaft in the limiting guide rail grooves on both sides, respectively. A vertical base plate for setting the tube clamping and pushing mechanism is fixedly installed at the top center of the displacement plate.

[0029] Preferably, the tube clamping and pushing mechanism includes a collimating circular plate, a V-shaped tube clamping plate, a connecting horizontal plate and a T-shaped limiting plate. The collimating circular plate is fixedly installed at the top of the vertical base plate, and the axis of the collimating circular plate and the center of the feeding window are located on the same horizontal line.

[0030] The collimator plate has a T-shaped groove with openings on both sides on its circular end face facing the clamping tube rotation structure, and the T-shaped groove is located on the transverse centerline of the circular end face of the collimator plate.

[0031] The number of V-shaped clamping plates is two, and the two V-shaped clamping plates are symmetrical to each other and form a V shape with the open sides facing each other. The center of the inscribed circle formed by the inclined inner wall of the two V-shaped clamping plates, the axis of the collimating circle plate, and the center of the feed window are located on the same horizontal line.

[0032] Both sides of the V-shaped clamping plate are fixed with an integrated connecting horizontal plate at the middle of the end side. The outer side of the connecting horizontal plate is flush with the end side of the V-shaped clamping plate and is fixedly installed with a T-shaped limiting plate that is compatible with the T-shaped slide groove. The V-shaped clamping plates on both sides are slidably engaged in the T-shaped slide groove opened on the collimation plate through the T-shaped limiting plate at the end side. The cross-section of the T-shaped limiting plate and the T-shaped slide groove are both horizontal T-shaped.

[0033] An electric cylinder is fixedly installed at the center of the circular end face of the collimating plate away from the V-shaped clamping plate, and the piston shaft of the electric cylinder is away from the collimating plate and fixedly connected to the drive plate.

[0034] The length of the active plate is less than the total length of the two connecting horizontal plates, and the opposite ends of the two connecting horizontal plates protrude from the ends of the T-shaped limiting plate. Inclined lever arms are hinged between the two ends of the active plate and the opposite ends of the two connecting horizontal plates.

[0035] Preferably, multiple clamping rollers with protruding surfaces are embedded in the inner wall of the V-shaped clamping plate, and the multiple clamping rollers are parallel to and attached to the outer surface of the thermos cup blank tube, and can rotate with the axial rotation of the thermos cup blank tube.

[0036] Preferably, the material gathering mechanism includes a receiving plate and a storage box. The front side of the cup blank laser cutting machine is equipped with a double-leaf cabinet door corresponding to the lower hollow interior, and the hollow interior is filled with a storage box. The material feeding rectangular groove is a through-type connection to the hollow interior, and the receiving plate is hinged to the side of the material feeding rectangular groove away from the clamping tube rotation structure. A torsion spring is fixed at the hinge point between the receiving plate and the material feeding rectangular groove, and the outer surface of the receiving plate is covered with a rubber pad. The free end of the receiving plate is inclined downward and extends into the hollow interior of the cup blank laser cutting machine and is located below the central groove.

[0037] Compared with the prior art, the present invention provides a thermos cup blank separation device based on laser cup division, which has the following beneficial effects:

[0038] Improving clamping concentricity and ensuring cutting trajectory accuracy: The equipment achieves four-point synchronous clamping of the billet tube through a concentric positioning component in the tube clamping rotation structure. The four clamping arms are distributed in a ring at equal intervals. With the linkage design of the gear ring and transmission arc groove, the clamping wheel can be driven to move evenly from the circumference, ensuring that the coaxiality error between the billet tube axis and the center of the rotating ring is controlled within 0.05mm. This concentric positioning method effectively solves the eccentricity problem of traditional double-sided clamping, allowing the fixed beam of the laser cutting head to form a perfect ring trajectory on the surface of the billet tube. The cutting tilt error is reduced to below 0.02mm, completely eliminating the need for subsequent leveling processes and reducing processing costs.

[0039] Achieving interference-free coordinated motion and improving processing efficiency: The equipment utilizes the rolling characteristics of the clamping wheels and rollers to create an independent mechanism for both rotation and feeding. When the clamping rotation structure drives the billet tube to rotate axially, the clamping rollers of the clamping propulsion mechanism rotate synchronously with the billet tube, avoiding rotational resistance. When the guide rail assembly drives the billet tube for lateral feeding, the clamping wheels of the clamping rotation structure rotate with the billet tube, eliminating feeding obstacles. This design allows for independent and precise adjustment of the billet tube's rotational speed and feeding speed, completely solving the motion interference problem of traditional equipment. This improves the continuous cutting efficiency of a single billet tube and adapts to the processing needs of billets with different wall thicknesses.

[0040] Optimized material feeding buffering and protection improve finished product yield: The material receiving plate in the material feeding mechanism features a dual design of torsion spring buffer and rubber pad, creating a graded buffering system. When the cut blank segment falls onto the receiving plate, the torsion spring absorbs the impact force through elastic deformation, while the rubber pad further weakens the residual impact force, reducing the falling speed of the blank segment. Simultaneously, the tilt angle of the receiving plate ensures that the blank segment slides smoothly into the storage bin along a preset trajectory, avoiding collisions between segments. This design effectively solves the damage problem of traditional feeding methods, reducing the rate of surface scratches and dents on the finished product, improving the yield, and reducing the labor and material costs of surface repair.

[0041] Enhanced structural adaptability and continuous processing capability: The equipment's V-shaped clamping plate and adjustable clamping mechanism can accommodate blank tubes of different diameters, enabling the processing of multiple models without changing clamping components, thus reducing equipment changeover time. It also supports continuous multi-segment cutting of a single blank tube. Combined with the quick-opening and closing design of the clamping mechanism, the continuous processing interval is shortened to less than 3 seconds. This adaptability and continuous design allows the equipment to meet both small-batch, multi-specification and large-batch, single-specification production needs, significantly improving the flexibility of the production line. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of the present invention;

[0043] Figure 2 This is a cross-sectional view of the laser cutting machine for cup blanks according to the present invention. Figure 1 ;

[0044] Figure 3 This is a cross-sectional view of the laser cutting machine for cup blanks according to the present invention. Figure 2 ;

[0045] Figure 4 This is a schematic diagram of the clamping tube rotation structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the rotating structure of the present invention;

[0047] Figure 6 This is a schematic diagram of the base ring structure of the present invention;

[0048] Figure 7 This is a schematic diagram of the concentric positioning structure of the present invention;

[0049] Figure 8 This is an exploded view of the concentric positioning structure of the present invention;

[0050] Figure 9 This is a cross-sectional view of the connection between the clamping ring and the gear ring of the present invention;

[0051] Figure 10 This is a schematic diagram of the guide rail assembly structure of the present invention;

[0052] Figure 11 This is a schematic diagram of the clamping and propulsion mechanism of the present invention;

[0053] Figure 12 This is an exploded view of the clamping and propulsion mechanism of the present invention;

[0054] Figure 13 This is a cross-sectional view of the connection between the clamping tube limiting ring and the gear ring.

[0055] In the diagram: 1. Cup blank laser cutting machine; 2. Processing platform; 3. Laser cutting section; 4. Feeding window; 5. Central groove; 6. Tube clamping rotating structure; 7. Unloading rectangular groove; 8. Guide rail opening groove; 9. Guide rail assembly; 10. Tube clamping and pushing mechanism; 11. Base ring; 12. Base piece; 13. Drive wheel; 14. Micro servo motor; 15. Clamping ring limiting piece; 16. Hemispherical groove; 17. Spherical rotor; 18. Rotating ring; 19. Connecting piece; 20. Tube clamping limiting ring; 21. Arc plate; 22. Gear ring; 23. Clamping tooth bending piece; 24. Limiting ring groove; 25. Tube clamping arm 26. Tube clamping wheel; 27. Limiting chuck; 28. Limiting straight groove; 29. ​​Transmission chuck; 30. Transmission arc groove; 31. Convex edge plate; 32. Servo motor one; 33. Drive pinion; 34. Receiving plate; 35. Storage box; 36. Cabinet door; 37. Guide rail horizontal plate; 38. Limiting guide rail groove; 39. Servo motor two; 40. Displacement horizontal plate; 41. Vertical base plate; 42. Collimation circular plate; 43. V-shaped tube clamping plate; 44. Connecting horizontal plate; 45. T-shaped limiting chuck; 46. T-shaped slide groove; 47. Electric cylinder; 48. Drive plate; 49. Lever arm; 50. Tube clamping roller. Detailed Implementation

[0056] 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.

[0057] Please see Figure 1-13 A laser-based thermos cup blank separation device includes:

[0058] The cup blank laser cutting machine 1 has a laser cutting part 3 with a laser cutting head on its top. The middle part of the cup blank laser cutting machine 1 has an open processing platform 2 located below the laser cutting part 3. The interior of the cup blank laser cutting machine 1 corresponding to the processing platform 2 is hollow. The side of the cup blank laser cutting machine 1 has a feeding window 4 that connects to the processing platform 2. The processing platform 2 has a guide rail opening groove 8 that leads to the feeding window 4. The bottom center of the guide rail opening groove 8 corresponding to the feeding window 4 is open.

[0059] The tube clamping and rotating structure 6 is located in the middle of the processing platform 2. The tube clamping and rotating structure 6 consists of a concentric positioning structure and a rotating structure. The concentric positioning structure is used to clamp and fix the end of the thermos cup blank tube to be cut. The concentric positioning structure is assembled in the rotating structure to give the thermos cup blank tube axial rotational freedom. The overall transverse axis of the tube clamping and rotating structure 6 intersects perpendicularly with the vertical axis of the laser cutting head in the laser cutting section 3.

[0060] The rectangular groove 7 is located directly below the laser cutting head in the laser cutting section 3 and on one side of the tube clamping rotating structure 6. A material gathering mechanism is provided in and below the rectangular groove 7 for collecting and removing the cut and separated blanks. The rectangular groove 7 and the guide rail opening groove 8 are located on opposite sides of the tube clamping rotating structure 6.

[0061] The tube clamping and pushing mechanism 10 is located on the outside of the cup blank laser cutting machine 1 and its overall axis is on the same horizontal line as the overall axis of the tube clamping and rotating structure 6. The processing platform 2 is provided with a guide rail group 9 that extends outward through the feed window 4. The tube clamping and pushing mechanism 10 is slidably mounted on the guide rail group 9. The tube clamping and pushing mechanism 10 is used to clamp and fix the outermost end of the thermos cup blank tube and make the thermos cup blank tube have a lateral displacement freedom along the length centerline of the processing platform 2.

[0062] The thermos cup blank tube has an axial rotational degree of freedom in the tube clamping and pushing mechanism 10, and a lateral displacement degree of freedom in the tube clamping and rotating structure 6.

[0063] Furthermore, the rotating structure 6 includes a base ring 11, a drive wheel 13, a micro servo motor 14, a clamping ring limiting member 15, and a rotating ring 18. A central groove 5 is provided in the middle of the processing platform 2. An integrated base member 12 is fixedly provided at the bottom end of the base ring 11, and the base member 12 is fixedly installed at the center of the bottom inner wall of the central groove 5. At least four sets of drive wheels 13 are rotatably installed on one side of the ring end face of the base ring 11, and the multiple sets of drive wheels 13 are distributed in a ring at equal intervals. A micro servo motor 14 is fixedly installed on the other side of the ring end face of the base ring 11 at the position corresponding to each set of drive wheels 13, and the output shaft of each set of micro servo motor 14 passes through the outer side of the base ring 11 and is fixedly connected to each set of drive wheels 13. The rotating ring 18 is rotatably engaged in multiple sets of driving wheels 13. The multiple sets of driving wheels 13 are in contact with the outer ring surface of the rotating ring 18, and the center of the rotating ring 18 and the center of the base ring 11 are located on the same horizontal axis. A concentric positioning structure is set in the rotating ring 18. A clamping ring limiting member 15 is fixedly installed on the end face of the base ring 11 to clamp the two sides of the rotating ring 18. The two clamping ring limiting members 15 are symmetrical to each other and the inner surface is an arc shape adapted to the rotating ring 18. The cross-section of the clamping ring limiting member 15 is a horizontal L-shape. The operation of this rotating structure is triggered by the concentric positioning structure completing the clamping of the blank tube. After receiving the control system signal, the micro servo motor 14 starts synchronously, and the output shaft drives the driving wheel 13 to rotate around its own axis. Since the multiple sets of driving wheels 13 are distributed in a ring at equal intervals and are in close contact with the outer ring surface of the rotating ring 18, their friction will form a uniform circumferential driving force, which drives the rotating ring 18 to rotate stably around the center of the base ring 11. The integrated design of the base component 12 and the base ring 11 allows the base ring 11 to be rigidly fixed through the central groove 5, preventing overall displacement during rotation. The horizontally placed L-shaped clamping ring limiting component 15 uses a double limiting structure, with its horizontal section conforming to the end face of the rotating ring 18 and its vertical section conforming to the side of the rotating ring 18, to clamp the rotating ring 18 between the drive wheel 13 and the clamping ring limiting component 15. This provides axial positioning for the rotating ring 18, preventing it from moving along the axis, while not hindering the circumferential movement of the rotating ring 18. The core function of this structure is to accurately convert the power of the micro servo motor 14 into the stable rotation of the rotating ring 18, thereby driving the concentric positioning structure and the blank tube to rotate synchronously, providing a uniform and stable motion trajectory for laser ring cutting.

[0064] Furthermore, multiple hemispherical grooves 16 are formed on the parallel and spaced end faces of the base ring 11 and the clamping ring limiting member 15, as well as on the inner wall of the arc. Each hemispherical groove 16 contains a spherical rotor 17 with a protruding surface. The spherical rotor 17 has omnidirectional rotational freedom, and the spherical rotors 17 on the base ring 11 and the clamping ring limiting member 15 respectively conform to the two end faces of the rotating ring 18. When the rotating ring 18 rotates under the drive of the drive wheel 13, the end faces of the rotating ring 18 exert a tangential force on the spherical rotors 17, causing them to rotate synchronously. This converts the sliding friction between the rotating ring 18 and the base ring 11 and the clamping ring limiting member 15 into rolling friction, effectively reducing rotational resistance and component wear, and extending the service life of the rotating structure. Simultaneously, the spherical rotors 17 distributed on the base ring 11 and the clamping ring limiting member 15 form a bidirectional support, precisely defining the axial position of the rotating ring 18.

[0065] Furthermore, the concentric positioning structure includes a tube clamping and limiting ring 20, a gear ring 22, a tube clamping arm 25, and a tube clamping wheel 26. The inner diameters of the base ring 11 and the rotating ring 18 are the same and both larger than the outer diameter of the tube clamping and limiting ring 20. An integrated arc plate 21 is fixedly provided at both the top and bottom ends of the tube clamping and limiting ring 20, and the arc plate 21 is in a shape that fits the arc of the tube clamping and limiting ring 20 and is perpendicular to the tube clamping and limiting ring 20. An integrated connector 19 is fixedly provided at both the top and bottom ends of the inner ring surface of the rotating ring 18, and the opposite end faces of the upper and lower sets of connectors 19 are fixedly connected to the upper and lower sets of arc plates 21 on the tube clamping and limiting ring 20, respectively. The center of the tube clamping and limiting ring 20 and the center of the rotating ring 18 are located on the same horizontal axis. The inner diameters of ring 20 and gear ring 22 are the same. Both upper and lower sets of arc plates 21 have integrated toothed bending parts 23 fixed on their arc-shaped ends away from the clamping ring 20. The upper and lower sets of toothed bending parts 23 are symmetrical to each other, and both sets of toothed bending parts 23 have integrated arc-shaped bending portions fixed at their near ends. The toothed bending parts 23 have an L-shaped cross-section. A limiting ring groove 24 adapted to the arc-shaped bending portion of the toothed bending part 23 is opened on one side of the ring end face of gear ring 22. Gear ring 22 engages with the arc-shaped bending portions of the upper and lower sets of toothed bending parts 23 through the limiting ring groove 24. The centers of the clamping ring 20 and gear ring 22 are located on the same horizontal axis. 2. Parallel and spaced; there are four clamping arms 25 and four clamping wheels 26. The four clamping arms 25 slide and fill the space between the clamping limiting ring 20 and the gear ring 22. The four clamping arms 25 are distributed in a ring at equal intervals. The ends of the four clamping arms 25 that are close to each other are exposed in the inner ring area of ​​the clamping limiting ring 20 and the gear ring 22. The ends of the four clamping arms 25 that are close to each other are rotatably mounted with clamping wheels 26. The clamping limiting ring 20 has four sets of limiting straight grooves 28 that are distributed in a ring at equal intervals. The distribution position of the clamping limiting ring 20 corresponds one-to-one with the distribution position of the clamping arms 25. The two sets of limiting straight grooves 28 and the two adjacent clamping arms 25 are perpendicular to each other. The clamping arms 25 fit snugly against the clamping ring. One end of the tube limiting ring 20 is fixedly connected to a limiting clamp 27, and the limiting clamp 27 on each tube clamping arm 25 is correspondingly clamped to the end of the limiting straight groove 28 near the inner ring. The core operating logic of this concentric positioning structure is that the rotation of the gear ring 22 drives the tube clamping arm 25 to move radially synchronously. Its assembly and operation processes are closely connected: First, the tube clamping limiting ring 20 and the rotating ring 18 are fixed by the connector 19 to ensure that the two rotate synchronously; then, the arc-shaped bending part of the toothed bending part 23 is engaged with the limiting ring groove 24 of the gear ring 22, so that the gear ring 22 can rotate around the center of the tube clamping limiting ring 20, and the L-shaped cross-section of the toothed bending part 23 can limit the axial displacement of the gear ring 22 to prevent it from disengaging. The sliding space of the tube clamping arm 25 is provided by the space between the tube clamping limiting ring 20 and the gear ring 22. The circular equidistant and adjacent perpendicular distribution of the four tube clamping arms 25 can make the billet tube receive a uniform clamping force.When the gear ring 22 rotates, the engagement of the limiting straight groove 28 and the limiting clamp 27 restricts the movement direction of the clamping arm 25, allowing it to move only radially. This prevents the clamping arm 25 from rotating with the gear ring 22, ensuring that the four clamping arms 25 move closer or open synchronously. The rotating installation design of the clamping wheel 26 allows it to rotate along with the billet tube during transverse advancement, converting the sliding friction of the clamping surface into rolling friction. This avoids scratching the outer surface of the billet tube and reduces the feeding resistance of the billet tube.

[0066] Furthermore, the four clamping wheels 26 are perpendicular to the outer surface of the thermos cup blank tube and can rotate as the thermos cup blank tube moves laterally. The clamping wheels 26 can be made of high-hardness rubber material, forming a surface contact with the outer surface of the cylindrical blank tube, which not only improves clamping stability but also avoids damage to the blank tube. When the guide rail assembly 9 drives the blank tube to move laterally, the relative sliding between the blank tube and the clamping wheels 26 will generate friction, causing the clamping wheels 26 to rotate around their own axis. This rotational characteristic reduces the resistance of the clamping wheels 26 to the blank tube from sliding friction resistance to rolling friction resistance, ensuring that the blank tube can move smoothly with a smaller pushing force and reducing the load on the servo motor 39. Meanwhile, the vertically aligned design of the four clamping rollers 26 ensures that the clamping force on the billet tube is evenly distributed in the circumferential direction, preventing deformation of the billet tube due to excessive local pressure. The synchronous rotation of the clamping rollers 26 indirectly reflects the feeding accuracy of the billet tube. If any clamping roller 26 rotates abnormally, it can promptly indicate eccentricity or jamming of the billet tube, providing a basis for equipment operation monitoring. Furthermore, the rotation direction of the clamping rollers 26 is consistent with the forward propulsion direction of the billet tube, preventing reverse resistance to the feeding and ensuring smooth connection between the combined motion of rotary cutting and lateral feeding.

[0067] Furthermore, the concentric positioning structure also includes a convex side plate 31, a servo motor 32, and a driving pinion 33. An integrated convex side plate 31 is fixedly mounted on the side of the clamping ring 20, and a driving pinion 33, which meshes flush with the gear ring 22, is rotatably mounted on the convex side plate 31. A servo motor 32 is fixedly mounted on the outer side wall of the convex side plate 31 away from the driving pinion 33, and the output shaft of the servo motor 32 is fixedly connected to the driving pinion 33. Four sets of annularly distributed transmission grooves 30 are opened on the ring end face of the gear ring 22 near the clamping ring 20, and the transmission... The two ends of the arc groove 30 are close to the outer ring and inner ring of the gear ring 22, respectively. The end of the clamping arm 25 that is in contact with the gear ring 22 is fixedly connected to a transmission clamp 29 that is aligned with the limit clamp 27. The transmission clamp 29 on each clamping arm 25 is correspondingly clamped to the end of the transmission arc groove 30 that is close to the inner ring. The maximum width of the concentric positioning structure is less than the inner diameter of the rotating ring 18. The servo motor 32 starts after receiving the blank tube arrival signal. The output shaft drives the active pinion 33 to rotate. The active pinion 33 drives the gear ring 22 to rotate around its own axis through gear meshing. The transmission groove 30 adopts a gradually changing arc design, and its contact surface with the transmission clamp 29 is a smooth arc surface. When the gear ring 22 rotates, the groove wall of the transmission groove 30 will generate a radial force on the transmission clamp 29. If the gear ring 22 rotates clockwise, the transmission groove 30 will push the transmission clamp 29 to move towards the center, causing the clamping arm 25 to move closer to achieve clamping. If the gear ring 22 rotates counterclockwise, the transmission groove 30 will pull the transmission clamp 29 to move outward, achieving release. The function of the convex edge plate 31 is to provide mounting support for the servo motor 32 and the active pinion 33. Its integrated design with the clamping limit ring 20 ensures the meshing accuracy between the active pinion 33 and the gear ring 22, avoiding clamping lag caused by excessive gear meshing clearance. The design that the overall maximum width of the concentric positioning structure is smaller than the inner diameter of the rotating ring 18 is to avoid interference between the concentric positioning structure and the inner wall of the rotating ring 18.

[0068] Furthermore, in the tube clamping rotating structure 6, the centers of the base ring 11, rotating ring 18, tube clamping limiting ring 20, and gear ring 22 are on the same horizontal line as the center of the feed window 4. The central groove 5 is located between the unloading rectangular groove 7 and the guide rail opening groove 8, and the transverse centerlines of the processing platform 2, central groove 5, unloading rectangular groove 7, and guide rail opening groove 8 are on the same vertical plane. This ensures the coordinated movement of the various structures of the equipment. The strictness of operation is reflected in the following: the centers of all annular structures are aligned with the center of the feed window 4, so that after the billet tube enters from the feed window 4, it can directly extend into the clamping area of ​​the tube clamping rotating structure 6 in a straight line without secondary position adjustment, reducing feeding errors; the transverse centerlines of the processing platform 2, central groove 5, and other structures are coplanar, ensuring that the transverse feeding trajectory of the billet tube coincides with the centerline of the processing platform 2, avoiding deviation during billet tube feeding. From an operational perspective, this alignment design ensures that the vertical axis of the laser cutting head intersects precisely with the horizontal axis of the blank tube at the cutting point, guaranteeing that the laser beam accurately targets the cutting position and preventing the cutting surface from tilting due to axial misalignment. Simultaneously, the design of the central groove 5 positioned between the blanking rectangular groove 7 and the guide rail opening groove 8 provides space for the installation of the base ring 11 and allows the cut blank segment to fall directly into the lower blanking rectangular groove 7, avoiding obstruction by other structures and ensuring smooth blanking. Furthermore, this layout ensures that the feeding direction of the guide rail assembly 9 is completely aligned with the axis of the blank tube, further improving feeding accuracy.

[0069] Furthermore, the guide rail assembly 9 includes a guide rail horizontal plate 37, a limiting guide rail groove 38, a servo motor 39, and a guide rail lead screw. Two sets of parallel guide rail horizontal plates 37 are fixedly installed on the outer wall of the cup blank laser cutting machine 1, corresponding to the ports of the guide rail opening groove 8. The spacing between the two guide rail horizontal plates 37 is consistent with the opening width of the guide rail opening groove 8. The side walls of the two guide rail horizontal plates 37 are aligned and flush with the inner walls of the two sides of the guide rail opening groove 8. Aligned and connected limiting guide rail grooves 38 are provided on the inner walls of both sides of the guide rail opening groove 8 and the side walls of the two guide rail horizontal plates 37. A guide rail lead screw is rotatably installed between the inner walls of both ends of one limiting guide rail groove 38, and a limiting horizontal shaft is fixedly installed in the other limiting guide rail groove 38. A servo motor 39 is fixedly installed on the end side of the guide rail horizontal plate 37 on which the guide rail lead screw is installed, and the servo motor 39... The output shaft of 9 passes through the end side of the guide rail horizontal plate 37 and is fixedly connected to the guide rail screw. Horizontal displacement horizontal plates 40 are slidably engaged in the limit guide rail grooves 38 on both sides, and the two ends of the displacement horizontal plates 40 are threaded and slidably engaged with the guide rail screw and the limit horizontal shaft in the limit guide rail grooves 38 on both sides, respectively. A vertical base plate 41 for setting the tube clamping and pushing mechanism 10 is fixedly installed at the top center of the displacement horizontal plate 40. After the servo motor 39 receives the feeding signal, its output shaft drives the guide rail screw to rotate clockwise or counterclockwise. Since one end of the displacement horizontal plate 40 is threadedly engaged with the guide rail screw and the other end is slidably engaged with the limit horizontal shaft, the rotational motion of the guide rail screw is converted into the linear motion of the displacement horizontal plate 40 through threaded transmission. When rotating clockwise, the displacement horizontal plate 40 moves towards the equipment (feeding), and when rotating counterclockwise, it moves outward (removing material). The guide rail horizontal plate 37 has the same width as the guide rail opening groove 8, and its inner wall is flush with the guide rail groove 38, forming a continuous guiding channel and preventing the displacement horizontal plate 40 from getting stuck during movement. The guide rail screw uses a high-precision ball screw, which, together with the guiding action of the limiting horizontal shaft, enables the feeding accuracy of the displacement horizontal plate 40 to reach ±0.01mm, meeting the feeding accuracy requirements of laser cutting. The vertical base plate 41 is fixedly connected to the displacement horizontal plate 40 with bolts, ensuring that the clamping and pushing mechanism 10 moves synchronously with the displacement horizontal plate 40 without relative shaking. The functional effect of this structure is reflected in two aspects: first, through the cooperation of servo motor 39 and ball screw, the feeding length of the blank tube can be precisely controlled, which can adapt to the cutting needs of thermos cups of different heights; second, through double-sided guidance, the movement of the displacement horizontal plate 40 is ensured to be smooth, avoiding eccentricity or vibration of the blank tube during feeding, thus ensuring cutting quality.

[0070] Furthermore, the tube clamping and pushing mechanism 10 includes a collimating circular plate 42, a V-shaped tube clamping plate 43, a connecting horizontal plate 44, and a T-shaped limiting plate 45. The collimating circular plate 42 is fixedly installed at the top of the vertical base plate 41, and the axis of the collimating circular plate 42 is on the same horizontal line as the center of the feeding window 4. A T-shaped groove 46 with openings on both sides is opened on the circular end face of the collimating circular plate 42 facing the tube clamping rotation structure 6, and the T-shaped groove 46 is located on the horizontal center line of the circular end face of the collimating circular plate 42. There are two V-shaped tube clamping plates 43, and the two V-shaped tube clamping plates 43 are... The two V-shaped clamping plates 43 are symmetrically arranged with their open sides facing each other. The center of the inscribed circle formed by the inclined inner wall of the two V-shaped clamping plates 43, the axis of the collimating plate 42, and the center of the feed window 4 are all on the same horizontal line. An integrated connecting horizontal plate 44 is fixedly provided at the middle of the end side of each V-shaped clamping plate 43. The outer side of the connecting horizontal plate 44 is flush with the end side of the V-shaped clamping plate 43 and is fixedly installed with a T-shaped limiting plate 45 that matches the T-shaped slide 46. The two V-shaped clamping plates 43 are slidably engaged with the collimating plate 46 by the T-shaped limiting plate 45 at the end side. In the T-shaped groove 46 opened on the circular plate 42, both the T-shaped limiting plate 45 and the T-shaped groove 46 have a horizontally placed T-shape cross-section. An electric cylinder 47 is fixedly installed at the center of the circular end face of the collimating circular plate 42 away from the V-shaped clamping plate 43. The piston shaft of the electric cylinder 47 is away from the collimating circular plate 42 and is fixedly connected to an active plate 48. The length of the active plate 48 is less than the total length of the connecting horizontal plates 44 on both sides, and the opposite ends of the connecting horizontal plates 44 on both sides protrude from the ends of the T-shaped limiting plate 45. The two ends of the active plate 48 are opposite to the opposite ends of the connecting horizontal plates 44 on both sides. An inclined lever arm 49 is hinged between the heads. When the piston shaft of the electric cylinder 47 extends, it pushes the active plate 48 to move away from the collimating plate 42. The active plate 48 pulls the connecting horizontal plates 44 on both sides closer together through the lever arm 49. The connecting horizontal plates 44 drive the T-shaped limiting plate 45 to slide in the T-shaped groove 46, so that the two V-shaped clamping plates 43 move closer together to achieve clamping. When the piston shaft retracts, the active plate 48 moves towards the collimating plate 42, the lever arm 49 pushes the connecting horizontal plate 44 to separate, and the V-shaped clamping plates 43 open to complete the release. The axis alignment design of the collimating plate 42 ensures that after the V-shaped clamping plates 43 clamp the billet tube, the axis of the billet tube coincides with the center of the feed window 4, laying the foundation for the accuracy of subsequent feeding. The T-shaped groove 46 and the T-shaped limiting plate 45 are fitted with a clearance fit, which ensures that the V-shaped clamping plates 43 slide smoothly and avoids wobbling during clamping. The V-shaped clamping plate 43 has a V-angle design of 45-75°, which can accommodate billet tubes of different diameters. Its inclined inner wall has a large contact area between multiple clamping rollers 50 and the outer surface of the billet tube, which can disperse the clamping force and prevent deformation of the billet tube. The hinged design of the active plate 48 and the lever arm 49 allows the lever arm 49 to adjust its angle as the connecting horizontal plate 44 moves, ensuring the synchronous movement of the two V-shaped clamping plates 43 and achieving centering clamping of the billet tube.While fixing the outer end of the billet tube, the centering design of the V-shaped clamping plate 43 and the T-shaped guiding structure ensure that the axis of the billet tube is always consistent with the feeding direction, thus providing a guarantee for accurate feeding.

[0071] Furthermore, multiple clamping rollers 50 with protruding surfaces are embedded in the inner wall of the V-shaped clamping plate 43. These rollers are parallel to and in contact with the outer surface of the thermos cup blank tube, and can rotate with the axial rotation of the blank tube. Their axes are parallel to the axis of the blank tube, and their outer surfaces are covered with a wear-resistant silicone layer, which not only increases the friction with the blank tube but also prevents scratching the blank tube. When the clamping rotating structure 6 drives the blank tube to rotate axially, the friction between the blank tube and the clamping rollers 50 will cause the clamping rollers 50 to rotate around their own axes. This rotational characteristic converts the sliding friction between the two into rolling friction, reducing the frictional resistance from sliding friction to rolling friction, effectively reducing the resistance when the blank tube rotates and lowering the load on the micro servo motor 14. Meanwhile, the protrusion height of the clamping roller 50 is designed to be 2mm, ensuring a tight fit with the outer surface of the blank tube. Even if there are minor protrusions on the outer surface of the blank tube, the clamping roller 50 can adapt through its own rotation, avoiding damage to the blank tube caused by excessive local pressure. In addition, the parallel distribution of the clamping rollers 50 ensures the stability of the blank tube during rotation, preventing the blank tube from rotating eccentrically due to roller axis misalignment, further guaranteeing the accuracy of the circular trajectory of laser cutting.

[0072] Furthermore, the material gathering mechanism includes a receiving plate 34 and a storage box 35. A double-leaf cabinet door 36 is installed on the front side of the hollow interior corresponding to the lower part of the cup blank laser cutting machine 1, and the hollow interior is filled with the storage box 35. The discharge rectangular trough 7 is a through-type connection to the hollow interior, and a receiving plate 34 is hinged to the side of the discharge rectangular trough 7 opposite to the clamping tube rotating structure 6. A torsion spring is fixed at the hinge point between the receiving plate 34 and the discharge rectangular trough 7, and the outer surface of the receiving plate 34 is covered with a rubber pad. The free end of the receiving plate 34 is inclined downwards and extends... The receiving plate 34 extends into the hollow interior of the laser cutting machine 1 and is located below the central groove 5. After laser cutting, the separated blank segments fall under gravity, first impacting the rubber pad surface of the receiving plate 34. Under the impact of the blank segments, the receiving plate 34 rotates downward around the hinge point, while the torsion spring is compressed. The elastic force of the torsion spring buffers the falling speed of the blank segments, preventing them from directly impacting the storage box 35 and causing deformation or damage. Its elastic deformation further absorbs the impact force and prevents scratches on the surface of the blank segments. The tilt angle of the receiving plate 34 can be designed to be 15-60°. This angle ensures that the blank segments slide smoothly into the storage box 35 under gravity and avoids collisions and accumulation caused by excessive sliding speed. After the blank segments slide away from the receiving plate 34, the elastic force of the torsion spring will cause the receiving plate 34 to return to its original position, waiting for the next blank segment to fall. A foam cushioning layer is laid at the bottom of the storage bin 35 to further protect the billet segments. The design of the double-door cabinet 36 facilitates operators to periodically remove the billet segments, and an observation window is provided on the cabinet door 36 to monitor the filling status of the storage bin 35 in real time. The function of this mechanism is to achieve the integration of "buffering-guiding-collection" of the cut billet segments, solving the problems of easy damage to the billets and messy collection in traditional feeding methods, thereby improving production efficiency and finished product qualification rate.

[0073] Working principle: Before processing begins, the operator places the thermos cup blank tube to be cut between the two V-shaped clamping plates 43 of the tube clamping and pushing mechanism 10, ensuring that the axis of the blank tube is basically aligned with the axis of the collimating circular plate 42. Then, the electric cylinder 47 of the tube clamping and pushing mechanism 10 is activated. When the piston shaft of the electric cylinder 47 extends or retracts, it drives the active plate 48, which is fixedly connected to the piston shaft, to move synchronously. Both ends of the active plate 48 are connected to the force arms 49 via hinge points. When the active plate 48 moves, it generates a lateral thrust on the two force arms 49. Since the other end of the force arms 49 is hinged to the connecting horizontal plate 44, this thrust is converted into a force that drives the connecting horizontal plate 44 to move laterally. A T-shaped limiting plate 45 is fixedly installed on the outer side of the connecting horizontal plate 44, and a T-shaped groove 46 adapted to the T-shaped limiting plate 45 is opened on the end face of the collimating plate 42 facing the V-shaped clamping plate 43. The T-shaped limiting plate 45 is precisely engaged in the T-shaped groove 46. Therefore, when the connecting horizontal plate 44 moves, it will drive the T-shaped limiting plate 45 to slide stably in the T-shaped groove 46 without deviation. The two V-shaped clamping plates 43, which are integrally connected with the connecting horizontal plate 44, will gradually move closer to each other or separate as the connecting horizontal plate 44 moves. They can move closer to each other until the multiple clamping rollers 50 embedded in the inner wall of the V-shaped clamping plate 43 are completely in contact with the outer surface of the thermos cup blank tube. At this time, the electric cylinder 47 stops moving, and the outermost end of the blank tube is firmly clamped. During this process, the cooperation between the T-shaped chute 46 and the T-shaped limiting plate 45 ensures the accuracy of the movement direction of the V-shaped clamping plate 43, so that the center of the inner circle formed by the two V-shaped clamping plates 43 is always on the same horizontal line as the axis of the aligning plate 42 and the center of the subsequent feeding window 4; while the design of the clamping roller 50 reserves axial rotational freedom for the billet tube, which can rotate synchronously with the billet tube when it rotates later, avoiding obstruction to the rotation of the billet tube, and also reducing frictional damage to the outer surface of the billet tube.

[0074] After the outer end of the blank tube is clamped, the servo motor 39 of the guide rail assembly 9 is started. The output shaft of the servo motor 39 passes through the end side of the guide rail horizontal plate 37 and is fixedly connected to the guide rail lead screw in the limiting guide rail groove 38. Therefore, after the motor starts, it will directly drive the guide rail lead screw to rotate along its own axis. The two guide rail horizontal plates 37 on both sides of the guide rail assembly 9 are parallel to each other, and their spacing width is consistent with the opening width of the guide rail opening groove 8. The side walls of the two guide rail horizontal plates 37 are aligned and flush with the inner walls of the two sides of the guide rail opening groove 8, ensuring smooth connection between the guide rail assembly 9 and the processing platform 2. The two ends of the displacement horizontal plate 40 are respectively engaged in the limiting guide rail grooves 38 on both sides. One end is threadedly connected to the guide rail lead screw, and the other end is slidably engaged with the limiting horizontal shaft in the limiting guide rail groove 38 on the other side. When the guide rail screw rotates, the threaded transmission drives the displacement plate 40 to move along the extension direction of the limiting guide rail groove 38. Due to the limitation of the limiting horizontal axis, the displacement plate 40 will not rotate with the rotation of the guide rail screw, but can only maintain a horizontal state and slide smoothly. A vertical base plate 41 is fixedly installed at the top center of the displacement plate 40. The tube clamping and pushing mechanism 10 is fixedly connected to the displacement plate 40 through the vertical base plate 41. Therefore, the tube clamping and pushing mechanism 10 will move synchronously with the displacement plate 40 towards the cup blank laser cutting machine 1. During the movement, the clamped thermos cup blank tube will pass through the feeding window 4 on the side of the cup blank laser cutting machine 1 and gradually enter the processing platform 2 area until the end of the blank tube to be cut is completely extended into the clamping range of the tube clamping rotation structure 6. The precise control capability of the servo motor 39 can ensure that the moving distance of the displacement plate 40 is controllable, thereby realizing the precise adjustment of the feeding length of the blank tube and ensuring that the position to be cut is exactly below the laser cutting section 3.

[0075] After the blank tube is in place at the cutting end, the servo motor 32 of the concentric positioning structure in the tube clamping rotation structure 6 is started. The servo motor 32 is fixedly installed on the side of the convex plate 31 away from the driving pinion 33, and its output shaft is directly fixedly connected to the driving pinion 33. Therefore, after the motor starts, it will drive the driving pinion 33 to rotate synchronously. The driving pinion 33 and the gear ring 22 maintain a flush meshing state. This meshing relationship will convert the rotation of the driving pinion 33 into the circumferential rotation of the gear ring 22. The gear ring 22 is stably engaged with the arc-shaped bending part of the upper and lower sets of toothed bending parts 23 through the limiting ring groove 24 opened on one side of its ring end face. This engagement method not only ensures that the gear ring 22 can rotate smoothly around the axis of the tube clamping limiting ring 20, but also strictly limits the axial position of the gear ring 22 to prevent it from deviating during rotation. The toothed bending component 23 is integrally connected to the arc plate 21, which is fixed to the top and bottom of the clamping tube limiting ring 20. The clamping tube limiting ring 20 is fixed to the rotating ring 18 via the connector 19. Therefore, the rotation of the gear ring 22 will not cause the clamping tube limiting ring 20 to move synchronously. Four sets of annularly distributed transmission arc grooves 30 are formed on the ring end face of the gear ring 22 near the clamping tube limiting ring 20. The two ends of the transmission arc grooves 30 are respectively close to the outer and inner rings of the gear ring 22. The clamping arm 25 fits against the transmission clamp 29 fixed to one end of the gear ring 22, precisely engaging the end of the transmission arc groove 30 near the inner ring. When the gear ring 22 rotates, the inner wall of the transmission arc groove 30 generates a radial thrust on the transmission clamp 29, pushing the clamping arm 25 to move radially. Simultaneously, the clamping arm 25 engages with the limiting head 27 on one side of the clamping limiting ring 20 within the limiting straight groove 28 of the clamping limiting ring 20. The limiting straight groove 28 is linear and corresponds one-to-one with the distribution position of the clamping arms 25. This limiting effect ensures that the clamping arms 25 can only reciprocate radially and cannot rotate. The four clamping arms 25 are distributed in a ring at equal intervals. Driven by the transmission arc groove 30, they synchronously move towards the center until the clamping wheels 26, which are rotated and installed at the ends of the clamping arms 25, completely adhere to the outer surface of the end of the thermos cup blank tube to be cut. At this point, the servo motor 32 stops operating, and the end of the blank tube to be cut is concentrically positioned and clamped. Because the four clamping arms 25 are distributed in a ring at equal intervals, and the centers of the clamping limiting ring 20, gear ring 22, and rotating ring 18 are aligned, it can be ensured that the axis of the blank tube is completely coincident with the axis of the rotating ring 18, providing precise concentricity assurance for subsequent ring cutting. Meanwhile, the clamping wheel 26 can rotate with the lateral movement of the billet tube, avoiding obstruction to the movement of the billet tube during subsequent feeding.

[0076] After both ends of the billet tube are clamped and fixed, the micro servo motor 14 of the rotating structure in the tube clamping rotating structure 6 is started. The micro servo motor 14 is fixedly installed on the side of the base ring 11 opposite to the drive wheel 13. Its output shaft passes through the outer side of the base ring 11 and is fixedly connected to the drive wheel 13 one by one. Therefore, after multiple sets of micro servo motors 14 are started, they will drive the corresponding drive wheel 13 to rotate synchronously. The base ring 11 is fixedly installed on the bottom inner wall of the central groove 5 of the processing platform 2 through the bottom base piece 12, and its position remains fixed. The drive wheel 13 is rotatably installed on the side of the base ring 11 facing the rotating ring 18, and multiple sets of drive wheels 13 are distributed in a ring at equal intervals. Its outer surface is in close contact with the outer ring surface of the rotating ring 18. Therefore, the rotation of the drive wheel 13 will drive the rotating ring 18 to rotate around its own axis through friction. Multiple hemispherical grooves 16 are formed on the ring end face and the inner arc wall opposite to the base ring 11 and the clamping ring limiting member 15. The spherical rotors 17 in the hemispherical grooves 16 protrude from the surface and have universal rotational freedom. These spherical rotors 17 are tightly fitted to the two ring end faces of the rotating ring 18. When the rotating ring 18 rotates, they will rotate synchronously with the movement of the rotating ring 18, converting the sliding friction between the rotating ring 18 and the base ring 11 and the clamping ring limiting member 15 into rolling friction, which greatly reduces the frictional resistance when the rotating ring 18 rotates. At the same time, the axial position of the rotating ring 18 is limited to prevent axial movement during rotation. The rotating ring 18 is fixedly connected to the arc plate 21 of the clamping tube limiting ring 20 through the connecting member 19. Therefore, when the rotating ring 18 rotates, it will drive the clamping tube limiting ring 20 and the entire concentric positioning structure to rotate synchronously. The thermos cup blank tube held by the concentric positioning structure will also rotate stably axially together with the concentric positioning structure. The rotational speed of the micro servo motor 14 can be precisely adjusted, thereby achieving precise control of the billet tube's rotational speed and providing a stable cutting path for the laser cutting unit 3. During this process, the clamping roller 50 of the clamping and pushing mechanism 10 rotates synchronously with the rotation of the billet tube, ensuring that the rotation of the billet tube is unimpeded.

[0077] After the cutting is completed, the separated blank segments fall directly into the lower rectangular groove 7 under the action of gravity, and then fall onto the receiving plate 34 in the rectangular groove 7. After a single cut is completed, there is no need to immediately release the clamping structure. According to the subsequent processing requirements, the guide rail group 9 can drive the displacement plate 40 to move again, which drives the clamping tube pushing mechanism 10 to push the remaining blank tube to continue feeding, so that the next position to be cut is moved to below the laser head, and then the rotational cutting action is repeated. If it is necessary to replace the billet tube or complete batch processing, first control the servo motor 32 of the concentric positioning structure to reverse, the active pinion 33 drives the gear ring 22 to rotate in the opposite direction, the transmission arc groove 30 drives the clamping arm 25 to move radially outward through the transmission chuck 29, the clamping wheel 26 disengages from the outer surface of the billet tube, and the concentric positioning structure releases its clamping; then control the electric cylinder 47 of the clamping and pushing mechanism 10 to retract, the piston shaft drives the active plate 48 to move away from the collimating circular plate 42, the active plate 48 pulls the connecting horizontal plate 44 through the lever arm 49, so that the two V-shaped clamping plates 43 separate from each other, the clamping roller 50 disengages from the outer surface of the billet tube, and the clamping and pushing mechanism 10 releases its clamping.

[0078] After the separated billet segments reach the receiving plate 34, the receiving plate 34 rotates slightly under the weight of the billet segments. The torsion spring at the hinge point between the receiving plate 34 and the blanking rectangular groove 7 generates a counter-elastic force, buffering the billet segments and preventing damage from impact. The rubber pads covering the outer surface of the receiving plate 34 further enhance the buffering effect, protecting the outer surface of the billet segments from scratches. Because the free end of the receiving plate 34 is inclined downwards and extends into the hollow interior of the cup blank laser cutting machine 1, the billet segments will slide smoothly along the inclined surface of the receiving plate 34 into the storage box 35 below, achieving orderly collection of finished products. The free end of the receiving plate 34 is inclined downwards and extends into the hollow interior of the cup blank laser cutting machine 1, so the billet segments will slide along the inclined surface of the receiving plate 34 into the storage box 35. The storage box 35 is set inside the hollow cavity of the cup blank laser cutting machine 1. The front side of the cup blank laser cutting machine 1 is equipped with a double-opening cabinet door 36. The operator can open the cabinet door 36 to take out the blank segment in the storage box 35 and complete the unloading stage of the entire processing flow.

[0079] 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 thermos cup blank separation device based on laser cup division, characterized in that, include: The cup blank laser cutting machine (1) has a laser cutting part (3) with a laser cutting head on its top. The middle part of the cup blank laser cutting machine (1) has an open processing platform (2) located below the laser cutting part (3). The interior of the cup blank laser cutting machine (1) corresponding to the processing platform (2) is hollow. The side of the cup blank laser cutting machine (1) has a feeding window (4) that connects to the processing platform (2). The processing platform (2) has a guide rail opening groove (8) that leads to the feeding window (4). The bottom middle of the guide rail opening groove (8) corresponding to the feeding window (4) is open. The tube clamping and rotating structure (6) is set in the middle of the processing platform (2). The tube clamping and rotating structure (6) consists of a concentric positioning structure and a rotating structure. The concentric positioning structure is used to clamp and fix the end of the thermos cup blank tube to be cut. The concentric positioning structure is assembled in the rotating structure so that the thermos cup blank tube has axial rotational freedom. The overall transverse axis of the tube clamping and rotating structure (6) intersects perpendicularly with the vertical axis of the laser cutting head in the laser cutting part (3). The rectangular groove (7) is located directly below the laser cutting head in the laser cutting section (3) and on one side of the clamping tube rotating structure (6). The rectangular groove (7) and the bottom of it are equipped with a material gathering mechanism for collecting and removing the cut and separated blanks. The rectangular groove (7) and the guide rail opening groove (8) are located on opposite sides of the clamping tube rotating structure (6). The tube clamping and pushing mechanism (10) is located on the outside of the cup blank laser cutting machine (1) and its overall axis is on the same horizontal line as the overall axis of the tube clamping and rotating structure (6). The processing platform (2) is provided with a guide rail group (9) that extends outward through the feed window (4). The tube clamping and pushing mechanism (10) is slidably set on the guide rail group (9). The tube clamping and pushing mechanism (10) is used to clamp and fix the outermost end of the thermos cup blank tube and make the thermos cup blank tube have a lateral displacement degree of freedom along the length centerline of the processing platform (2). The thermos cup blank tube has axial rotational freedom in the tube clamping and pushing mechanism (10) and lateral displacement freedom in the tube clamping and rotating structure (6); The guide rail assembly (9) includes a guide rail horizontal plate (37), a limiting guide rail groove (38), a servo motor (39), and a guide rail lead screw. Two sets of parallel guide rail horizontal plates (37) are fixedly installed on the outer side wall of the cup blank laser cutting machine (1) corresponding to the two sides of the guide rail opening groove (8). The spacing width of the two guide rail horizontal plates (37) is consistent with the opening width of the guide rail opening groove (8). The two guide rail horizontal plates (37) are close to each other and aligned with the inner walls of the two sides of the guide rail opening groove (8). The guide rail opening groove (8) has aligned and connected limiting guide grooves (38) on the inner walls of both sides and the side walls of the two guide rail horizontal plates (37) that are close to each other. A guide rail screw is rotatably installed between the inner walls of the two ends of one limiting guide groove (38), and a limiting horizontal shaft is fixedly installed in the other limiting guide groove (38). A servo motor two (39) is fixedly installed on the end side of the guide rail horizontal plate (37) with the guide rail screw installed, and the output shaft of the servo motor two (39) passes through the end side of the guide rail horizontal plate (37) and is fixedly connected to the guide rail screw. A horizontal displacement plate (40) is slidably engaged in the limiting guide rail grooves (38) on both sides, and the two ends of the displacement plate (40) are threaded and slidably engaged with the guide rail screw and the limiting horizontal shaft in the limiting guide rail grooves (38) on both sides, respectively. A vertical base plate (41) for setting the tube clamping and pushing mechanism (10) is fixedly installed at the top center of the displacement plate (40); The tube clamping and pushing mechanism (10) includes a collimating circular plate (42), a V-shaped tube clamping plate (43), a connecting horizontal plate (44), and a T-shaped limiting plate (45). The collimating circular plate (42) is fixedly installed at the top of the vertical base plate (41), and the axis of the collimating circular plate (42) and the center of the feeding window (4) are located on the same horizontal line. The collimator plate (42) has a T-shaped groove (46) with open sides on the round end face facing the clamping tube rotating structure (6), and the T-shaped groove (46) is located on the transverse center line of the round end face of the collimator plate (42). The number of the V-shaped clamping plates (43) is two, and the two V-shaped clamping plates (43) are symmetrical to each other and form a V-shape with the open sides facing each other. The center of the inscribed circle formed by the inclined inner wall of the two V-shaped clamping plates (43) is on the same horizontal line as the axis of the collimating circle plate (42) and the center of the feed window (4). Both sides of the V-shaped clamping plate (43) are fixedly provided with an integrated connecting horizontal plate (44) at the middle of the end side. The outer side of the connecting horizontal plate (44) on both sides is flush with the end side of the V-shaped clamping plate (43) and is fixedly installed with a T-shaped limiting plate (45) that is compatible with the T-shaped slide groove (46). The V-shaped clamping plate (43) on both sides is slidably engaged in the T-shaped slide groove (46) opened on the collimating circular plate (42) through the T-shaped limiting plate (45) at the end side. The cross section of the T-shaped limiting plate (45) and the T-shaped slide groove (46) are both horizontal T-shaped. An electric cylinder (47) is fixedly installed at the center of the circular end face of the collimating plate (42) away from the V-shaped clamping plate (43). The piston shaft of the electric cylinder (47) is away from the collimating plate (42) and is fixedly connected to the driving plate (48). The length of the active plate (48) is less than the total length of the two connecting horizontal plates (44), and the opposite ends of the two connecting horizontal plates (44) protrude from the ends of the T-shaped limiting plate (45). Inclined lever arms (49) are hinged between the two ends of the active plate (48) and the opposite ends of the two connecting horizontal plates (44). The inner wall of the V-shaped clamping plate (43) is embedded with multiple clamping rollers (50) with protruding surfaces, and the multiple clamping rollers (50) are parallel to and attached to the outer surface of the thermos cup blank tube, and can rotate with the axial rotation of the thermos cup blank tube.

2. The thermos cup blank separation device based on laser cup division according to claim 1, characterized in that, The rotating structure of the clamping tube rotating structure (6) includes a base ring (11), a drive wheel (13), a micro servo motor (14), a clamping ring limiting member (15), and a rotating ring (18). A central groove (5) is provided in the middle of the processing platform (2). An integrated base member (12) is fixed at the bottom end of the base ring (11), and the base member (12) is fixedly installed at the center of the bottom inner wall of the central groove (5). At least four sets of drive wheels (13) are rotatably mounted on one side of the base ring (11), and the multiple sets of drive wheels (13) are distributed in a ring at equal intervals. On the other side of the base ring (11), a micro servo motor (14) is fixedly mounted at the position corresponding to each set of drive wheels (13), and the output shaft of each set of micro servo motor (14) passes through the outer side of the base ring (11) and is fixedly connected to each set of drive wheels (13) one by one. The rotating ring (18) is rotatably engaged in multiple sets of driving wheels (13), the multiple sets of driving wheels (13) are in contact with the outer ring surface of the rotating ring (18), and the center of the rotating ring (18) and the center of the base ring (11) are located on the same horizontal axis. The concentric positioning structure is set in the rotating ring (18). The base ring (11) has a fixed installation on the end face of the ring with a limiting snap-fit ​​rotating ring (18) on both sides. The two clamping rings (15) are symmetrical to each other and the inner surface is an arc shape adapted to the rotating ring (18). The cross-section of the clamping ring (15) is a horizontal L-shape.

3. The thermos cup blank separation device based on laser cup division according to claim 2, characterized in that, Multiple hemispherical grooves (16) are provided on the ring end face and the inner wall of the arc of the base ring (11) and the clamping ring limiting member (15) which are opposite to and parallel to each other. Each hemispherical groove (16) is embedded with a spherical rotor (17) with a protruding surface. The spherical rotor (17) has a universal rotational degree of freedom. The spherical rotor (17) on the base ring (11) and the spherical rotor (17) on the clamping ring limiting member (15) respectively fit the two ring end faces of the rotating ring (18).

4. The thermos cup blank separation device based on laser cup division according to claim 3, characterized in that, The concentric positioning structure includes a tube clamping ring (20), a gear ring (22), a tube clamping arm (25), and a tube clamping wheel (26). The inner diameters of the base ring (11) and the rotating ring (18) are the same and both are larger than the outer diameter of the tube clamping ring (20). The top and bottom ends of the tube clamping ring (20) are fixed with an integrated arc plate (21), and the arc plate (21) is in the arc shape that fits the tube clamping ring (20) and is perpendicular to the tube clamping ring (20). The top and bottom ends of the inner ring surface of the rotating ring (18) are fixed with an integrated connector (19), and the opposite end faces of the upper and lower connectors (19) are fixedly connected to the upper and lower arc plates (21) on the tube clamping ring (20). The center of the clamping ring (20) and the center of the rotating ring (18) are located on the same horizontal axis; The inner diameter of the clamping ring (20) and the gear ring (22) are the same. The upper and lower sets of arc plates (21) are fixed with an integrated tooth bending part (23) on the arc end side away from the clamping ring (20). The upper and lower sets of tooth bending parts (23) are symmetrical to each other. The upper and lower sets of tooth bending parts (23) are fixed with an integrated arc-shaped bending part at their close ends. The cross-section of the tooth bending part (23) is L-shaped. The gear ring (22) has a limiting ring groove (24) on one side of the ring end face that is adapted to the arc-shaped bending part of the tooth bending part (23). The gear ring (22) is engaged with the arc-shaped bending parts of the upper and lower sets of tooth bending parts (23) through the limiting ring groove (24). The center of the clamping tube limiting ring (20) and the gear ring (22) are located on the same horizontal axis, and the clamping tube limiting ring (20) and the gear ring (22) are parallel and spaced apart. There are four clamping arms (25) and four clamping wheels (26). The four clamping arms (25) slide and fill the space between the clamping limiting ring (20) and the gear ring (22). The four clamping arms (25) are distributed in a ring at equal intervals. The ends of the four clamping arms (25) that are close to each other are exposed in the inner ring area of ​​the clamping limiting ring (20) and the gear ring (22). The ends of the four clamping arms (25) that are close to each other are rotatably mounted with clamping wheels (26). The clamping ring (20) has four sets of equidistant clamping grooves (28) arranged in a ring. The distribution positions of the clamping ring (20) correspond one-to-one with the distribution positions of the clamping arms (25). The two adjacent sets of clamping grooves (28) and the two adjacent clamping arms (25) are perpendicular to each other. The clamping arms (25) are fixedly connected to a clamping head (27) on one side end of the clamping ring (20). The clamping head (27) on each clamping arm (25) is correspondingly clamped to the end of the clamping groove (28) near the inner ring. The four clamping wheels (26) are perpendicular to the outer surface of the thermos cup blank tube and can rotate as the thermos cup blank tube moves laterally.

5. The thermos cup blank separation device based on laser cup division according to claim 4, characterized in that, The concentric positioning structure also includes a convex side plate (31), a servo motor (32) and an active pinion (33). The side of the clamping tube limiting ring (20) is fixedly provided with an integrated convex side plate (31), and an active pinion (33) that meshes flush with the gear ring (22) is rotatably mounted on the convex side plate (31). The servo motor (32) is fixedly mounted on the outer side wall of the convex side plate (31) away from the active pinion (33), and the output shaft of the servo motor (32) is fixedly connected to the active pinion (33). The gear ring (22) has four sets of transmission arc grooves (30) arranged in a ring on the ring end face near the clamping tube limiting ring (20). The two ends of the transmission arc grooves (30) are close to the outer ring and inner ring of the gear ring (22), respectively. The clamping tube arm (25) is fixedly connected to a transmission clamp head (29) aligned with the limiting clamp head (27) on one side end of the gear ring (22). The transmission clamp head (29) on each clamping tube arm (25) is correspondingly clamped to the end of the transmission arc groove (30) near the inner ring. The maximum width of the concentric positioning structure is smaller than the inner diameter of the rotating ring (18).

6. The thermos cup blank separation device based on laser cup division according to claim 5, characterized in that, In the tube clamping rotating structure (6), the center of the base ring (11), rotating ring (18), tube clamping limiting ring (20) and gear ring (22) is on the same horizontal line as the center of the feed window (4). The central groove (5) is located between the unloading rectangular groove (7) and the guide rail opening groove (8), and the horizontal center lines of the processing platform (2), central groove (5), unloading rectangular groove (7) and guide rail opening groove (8) are on the same vertical plane.

7. The thermos cup blank separation device based on laser cup division according to claim 6, characterized in that, The material gathering mechanism includes a receiving plate (34) and a storage box (35). The cup blank laser cutting machine (1) has a double cabinet door (36) installed on the front side of the hollow interior below, and the hollow interior is filled with a storage box (35). The material discharge rectangular groove (7) is a through-type connection to the hollow interior, and the receiving plate (34) is hinged on the side of the material discharge rectangular groove (7) away from the clamping tube rotating structure (6). A torsion spring is fixed at the hinge of the receiving plate (34) and the material discharge rectangular groove (7), and the outer surface of the receiving plate (34) is covered with a rubber pad. The free end of the receiving plate (34) is inclined downward and extends into the hollow interior of the cup blank laser cutting machine (1) and is located below the central groove (5).

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