A laser cutting device for finishing pipe

Abstract

The application relates to the technical field of laser cutting, in particular to a laser cutting equipment for decoration pipe materials, which comprises a positioning mechanism and a heat preservation mechanism, the positioning mechanism comprises an annular plate, a gear ring a, a clamping assembly a, a motor b, a moving assembly, a heating part and a laser cutter; the gear ring a is rotationally connected with the annular plate; the motor b is arranged on the annular plate and has a gear b meshing with the gear ring a connected to the output end of the motor b; the clamping assembly a is provided with multiple groups and is circumferentially distributed on the gear ring; the moving assembly is arranged on the annular plate and is connected with the heating part and the laser cutter; the heat preservation mechanism comprises a cylinder, a cover plate, a polishing plate a and a motor c; the cylinder is connected with a steering cylinder; the polishing plate a is rotationally connected with the cylinder; the motor c is arranged on the cylinder and is in transmission connection with the polishing plate a; a U-shaped piece is arranged on the cylinder; and the cover plate is rotationally connected with the U-shaped piece. The application can preheat the cutting point of the pipe material, balance the overall temperature of the pipe material in advance, reduce the local temperature gradient during cutting, and thus reduce the thermal stress.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and specifically to a laser cutting device for decorative pipes. Background Technology

[0002] Laser cutting is a processing method that uses a high-power-density laser beam to irradiate a workpiece, causing the irradiated material to melt, vaporize, ablate, or reach its ignition point rapidly. At the same time, a high-speed airflow coaxial with the laser beam blows away the molten material, thereby achieving high-precision and high-efficiency cutting of the workpiece.

[0003] Chinese patent CN118455782A discloses a tube laser cutting device; by introducing a suspended shielding rod, it can not only shield the cutting gap and significantly reduce the slag formed by molten metal particles, but also collect the cutting debris in a unified manner, thereby improving the quality of the inner wall of the tube.

[0004] However, the above-mentioned existing technology has the following drawbacks: when cutting thick-walled (wall thickness > 6 mm) high-carbon steel pipes, because high-carbon steel has undergone severe cold work hardening during the manufacturing process, there is a high residual stress inside. The high temperature heating of laser cutting will release these stresses, and they will be superimposed with thermal stress during the subsequent rapid cooling process, which can easily induce cracks; the above-mentioned existing technology cannot avoid the occurrence of cracks in high-carbon steel pipes during cutting. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a laser cutting device for decorative pipes.

[0006] The technical solution of the present invention: A laser cutting device for decorative pipes, comprising a conveying unit, a motor a, a base, and a steering cylinder; the steering cylinder is rotatably connected to the base; the motor a is mounted on the base and driven by the steering cylinder; the conveying unit is located on one side of the base; and further comprising:

[0007] The positioning mechanism includes an annular plate, a toothed ring a, a clamping assembly a, a motor b, a moving assembly, a heating element, and a laser cutter. The annular plate is mounted on the ground via support legs. The toothed ring a is rotatably connected to the annular plate. The motor b is mounted on the annular plate, and its output end is connected to a gear b that meshes with the toothed ring a. Multiple clamping assemblies a are provided and circumferentially distributed on the toothed ring. The moving assembly is mounted on the annular plate and connected to the heating element and the laser cutter.

[0008] The insulation mechanism comprises multiple components arranged circumferentially on the steering cylinder. The insulation mechanism includes a cylinder body, a cover plate, a grinding plate a, a motor c, a motor d, a clamping assembly b, and a grinding assembly. The cylinder body is connected to the steering cylinder. A circular opening is provided on the cylinder body. The grinding plate a is rotatably positioned inside the circular opening. The motor c is mounted on the cylinder body and is connected to the grinding plate a via a transmission connection. A U-shaped component is provided on the cylinder body. The cover plate is rotatably connected to the U-shaped component. The motor d is mounted on the U-shaped component, and its output end is connected to the cover plate. The grinding assembly is mounted on the cover plate. Multiple clamping assemblies b are arranged circumferentially on the cylinder body.

[0009] Preferably, the output end of motor a is connected to gear a; a gear ring b that meshes with gear a is connected to the steering cylinder.

[0010] Preferably, the clamping assembly a includes a telescopic component a, a U-shaped plate a, a motor e, and a roller a; the telescopic component a is connected to the toothed ring a; the U-shaped plate a is connected to the telescopic component a; the roller a is rotatably disposed inside the U-shaped plate a; the motor e is disposed on the U-shaped plate a and its output end is connected to the roller a.

[0011] Preferably, the moving component includes a connecting plate, a sliding frame, and a telescopic component b; the connecting plate is connected to the annular plate; the sliding frame is slidably connected to the connecting plate; the laser cutter is connected to the sliding frame; and the telescopic component b is connected to the annular plate and to the sliding frame.

[0012] Preferably, the heating part includes a ring and an electromagnetic induction heating coil; the ring is connected to the sliding frame; the electromagnetic induction heating coil is located inside the ring.

[0013] Preferably, the clamping assembly b includes a telescopic component c, a U-shaped plate b, a motor f, and a roller b; the telescopic component c is connected to the cylinder; the U-shaped plate b is connected to the telescopic component c; the roller b is rotatably disposed inside the U-shaped plate b; the motor f is disposed on the U-shaped plate b and its output end is connected to the roller b.

[0014] Preferably, the output end of the motor c is connected to a gear c; a toothed ring c that meshes with the gear c is connected to the grinding plate a.

[0015] Preferably, the polishing assembly includes a motor g, a disc, a sponge layer, and a polishing plate b; the motor g is mounted on the cover plate and its output end is connected to the disc; the sponge layer is connected to the disc; the polishing plate b is connected to the sponge layer; the disc has holes; and the polishing plate b has a rod a that is slidably connected to the holes.

[0016] Preferably, the steering cylinder has an opening a; a receiving column is slidably provided inside the opening a; the receiving column extends through the circular opening on the cylinder body to the inside of the cylinder body; a toothed plate is provided on the receiving column; a motor h is installed inside the steering cylinder, and the output end of the motor h is connected to a gear d that meshes with the toothed plate.

[0017] Preferably, the steering cylinder has an opening b; a door panel is hinged to the opening b.

[0018] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0019] By incorporating a positioning mechanism and a heating element, the cutting point of the pipe can be preheated before cutting. Preheating carbon steel pipes before cutting can balance the overall temperature of the pipe in advance, reduce the local temperature gradient during cutting, and thus reduce thermal stress. In addition, preheating can enhance the atomic mobility of the material, improve its toughness, and make it better able to withstand the stress during cutting.

[0020] By incorporating a heat-insulating mechanism, the cut pipe material can be kept warm, allowing the cut surface to cool slowly. This slow cooling also ensures that the entire workpiece cools to room temperature evenly, avoiding the problem of secondary thermal stress caused by uneven cooling. Attached Figure Description

[0021] Figure 1 A three-dimensional representation of an embodiment of the present invention Figure 1 ;

[0022] Figure 2 A three-dimensional representation of an embodiment of the present invention Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the positioning mechanism in the cross-sectional state of the annular plate in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the heat preservation mechanism in the cross-sectional state of the cylinder in one embodiment of the present invention;

[0026] Figure 6 This is an assembly structure diagram of the grinding component in one embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional structural diagram of the steering cylinder and the base in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point B.

[0029] Reference numerals: 1. Base; 2. Steering cylinder; 3. Gear ring b; 4. Cylinder body; 5. Cover plate; 6. Motor g; 7. Telescopic component c; 8. Grinding plate b; 9. Receiving column; 10. Annular plate; 11. Gear ring a; 12. Telescopic component a; 13. Roller a; 14. Motor e; 15. Conveying part; 16. Motor a; 17. Gear a; 18. Door panel; 19. Ring; 20. Telescopic component b; 21. Motor f; 22. Electromagnetic induction heating coil; 23. Motor b; 24. Gear b; 25. Grinding plate a; 26. Gear ring c; 27. Motor c; 28. Gear c; 29. ​​Rod a; 30. Motor d; 31. Disc; 32. Sponge layer; 33. Motor h; 34. Laser cutter; 35. Sliding frame; 36. Connecting plate; 37. Gear d; 38. Roller b. Detailed Implementation

[0030] Example 1, as Figure 1-5 As shown, the present invention proposes a laser cutting device for decorative pipes, including a conveying unit 15, a motor a16, a base 1, and a steering cylinder 2; the steering cylinder 2 is rotatably connected to the base 1 (multiple ball bearings are distributed around the bottom circumference of the steering cylinder 2 to reduce the friction between the steering cylinder 2 and the base 1); the motor a16 is mounted on the base 1 and is connected to the steering cylinder 2 for transmission, and the output end of the motor a16 is connected to a gear a17; a gear ring b3 that meshes with the gear a17 is connected to the steering cylinder 2; the conveying unit 15 is located on one side of the base 1 (the conveying unit 15 includes, but is not limited to, a roller conveyor, which is prior art, and its specific structure and working principle will not be described in detail here); it also includes a positioning mechanism and a heat preservation mechanism;

[0031] The positioning mechanism includes an annular plate 10, a toothed ring a11, a clamping assembly a, a motor b23, a moving assembly, a heating element, and a laser cutter 34. The annular plate 10 is mounted on the ground via support legs. The toothed ring a11 is rotatably connected to the annular plate 10. The motor b23 is mounted on the annular plate 10, and its output end is connected to a gear b24 that meshes with the toothed ring a11. The clamping assembly a has multiple sets distributed circumferentially on the toothed ring. The moving assembly is mounted on the annular plate 10 and connected to the heating element and the laser cutter 34. The heating element includes a circular ring 19 and an electromagnetic induction heating coil 22. The circular ring 19 is connected to a sliding frame 35. The electromagnetic induction heating coil 22 is located inside the circular ring 19. The clamping assembly a includes a telescopic component a1. 2. U-shaped plate a, motor e14, and roller a13; telescopic component a12 is connected to toothed ring a11; U-shaped plate a is connected to telescopic component a12; roller a13 is rotatably located inside U-shaped plate a (roller a13 is made of rubber material and its surface has anti-slip texture to increase the friction between it and the pipe); motor e14 is located on U-shaped plate a and its output end is connected to roller a13; the moving assembly includes connecting plate 36, sliding frame 35, and telescopic component b20; connecting plate 36 is connected to annular plate 10; sliding frame 35 is slidably connected to connecting plate 36; laser cutter 34 is connected to sliding frame 35; telescopic component b20 is connected to annular plate 10 and connected to sliding frame 35.

[0032] It should be noted that the pipe to be cut is placed on the conveying unit 15 and pushed to the initial point (i.e., one end of the pipe to be cut is located at the heating unit). Then, the telescopic component a12 is activated. The telescopic component a12 drives the U-shaped plate and rollers a13 to move towards the axis of the pipe, so that the rollers a13 around the pipe can clamp and fix the pipe, making the axis of the pipe coincide with the axis of the annular plate 10. The motor a16 drives the rollers a13 to rotate, which, in conjunction with the conveying unit 15, conveys the pipe, so that the cutting point of the pipe to be cut moves to the heating unit. At the hot section; then turn on the electromagnetic induction heating coil 22 to heat the pipe cutting point (carbon steel materials are generally heated to 550-600℃; the electromagnetic induction heating coil 22 can achieve the function of heating metal, which is existing technology, and its working principle and specific structure will not be described in detail here), to achieve the preheating function of the cutting point. Preheating of carbon steel pipes before cutting can balance the overall temperature of the pipe in advance, reduce the local temperature gradient during cutting, thereby reducing thermal stress. In addition, preheating can enhance the atomic mobility of the material and improve its toughness. It can withstand the stress during cutting, and the preheated pipe produces less slag during laser cutting, making subsequent slag removal easier (the viscosity of metal decreases as temperature increases; preheating puts the pipe in a hotter state, resulting in better fluidity of the molten metal at the cut; the more fluid the molten material is more easily and cleanly blown away from the cut by auxiliary gas (such as oxygen or nitrogen), rather than adhering to the bottom and forming slag); after preheating, the telescopic component b20 drives the sliding frame 35 to move, and the sliding frame 35 drives the laser cutter 34 and the... The heated part moves, causing the laser cutter 34 to move to the cutting point, activating the laser cutter 34 and the motor b23. The motor b23 drives the gear b24 to rotate, which in turn drives the gear ring a11 to rotate. The gear ring drives the telescopic component a12 to rotate, which in turn drives the roller a13 to perform a circular motion. The roller a13 uses the friction between itself and the pipe to drive the pipe to rotate, enabling the laser cutter 34 to perform the cutting function on the pipe. After the cutting function is completed, the telescopic component b20 drives the laser cutter 34 and the heated part to reset, so as to perform the next cutting operation.

[0033] It should be noted that by using motor e14 to drive roller a13 to rotate, the pipe can be conveyed at the same speed as the conveying unit 15. The conveying unit 15 and roller a13 move the same distance each time (the conveying speed of the conveying unit 15 and the conveying speed of motor e14 driving roller a13 are both controlled by an external controller; the conveying speed can be adjusted by the external controller according to the cutting length of the pipe), ensuring that the cutting point of the pipe can stop at the position of the heating unit each time the pipe stops.

[0034] Multiple insulation mechanisms are provided and circumferentially distributed on the steering cylinder 2; the insulation mechanism includes a cylinder 4, a cover plate 5, a grinding plate a25, a motor c27, a motor d30, a clamping assembly b, and a grinding assembly; the cylinder 4 is connected to the steering cylinder 2; a circular opening is provided on the cylinder 4; the grinding plate a25 is rotatably located inside the circular opening; the motor c27 is located on the cylinder 4 and is connected to the grinding plate a25 for transmission; a U-shaped component is provided on the cylinder 4; the cover plate 5 is rotatably connected to the U-shaped component; the motor d30 is located on the U-shaped component and its output end is connected to the cover plate 5; the grinding assembly... The cover plate 5 is used for grinding the cut surface of the pipe; multiple clamping components b are provided and distributed circumferentially on the cylinder 4; the clamping components b include a telescopic component c7, a U-shaped plate b, a motor f21 and a roller b38; the telescopic component c7 is connected to the cylinder 4; the U-shaped plate b is connected to the telescopic component c7; the roller b38 is rotatably located inside the U-shaped plate b (the roller b38 is made of rubber material and its surface is provided with anti-slip texture to increase the friction between it and the pipe); the motor f21 is located on the U-shaped plate b and its output end is connected to the roller b38.

[0035] It should be noted that when the pipe stops being conveyed, some of the pipe moves into the cylinder 4. At this time, the external controller will control the telescopic component c7 to work. The telescopic component c7 drives the U-shaped plate b and the roller b38 to move towards the pipe axis, so that the roller b38 contacts the pipe surface. There is only contact without extrusion force between the two, so as to avoid affecting the normal rotation of the pipe. When the laser cutter 34 completes the cutting of the pipe, the rollers b38 around the perimeter can limit the cut pipe to prevent it from falling. Afterwards, the external controller will control the telescopic component c7 to work again, so that the rollers b38 can squeeze the cut pipe to achieve its clamping function, and then control the motor. When motor f21 operates, it drives roller b38 to rotate, conveying the cut pipe material into the cylinder 4 until one end of the cut pipe material touches the grinding plate a25. Then, the external controller controls motor h33 to operate, first causing the receiving column 9 to move completely into the cylinder 4. After the cut pipe material enters the cylinder 4, motor a16 will operate, driving gear a17 to rotate. Gear a17 drives gear ring b3 to rotate, gear ring b3 drives the rotating cylinder 2 to rotate, and the rotating cylinder 2 drives the insulation mechanism to make a circular motion, so that the next insulation mechanism rotates to the pipe material to be cut (motor a16 drives the rotating cylinder 2 to rotate 1 / N angle each time, where N is the number of insulation mechanisms).

[0036] Then, control motor d30 to work. Motor d30 drives cover plate 5 to rotate and combine with cylinder 4. At this time, the grinding component contacts the other end of the cut-off pipe. The cut-off pipe is located inside cylinder 4. Cylinder 4 can play a certain role in heat preservation for the cut-off pipe, so that the cut surface of the pipe can be cooled slowly. Slow cooling can also ensure that the entire workpiece is cooled to room temperature evenly, avoiding secondary thermal stress caused by uneven cooling.

[0037] It should be noted that the direction in which motor a16 drives the steering cylinder 2 to rotate is clockwise (refer to...). Figure 1 When the cylinder 4 rotates to the last station (i.e., rotates clockwise to the station before the station to be cut), the motor d30 drives the cover plate 5 to rotate and separate from the cylinder 4. Then, the cut pipe inside the cylinder 4 moves out of the cylinder 4 under the drive of the roller b38. The staff can place the recycling box and other structures here for recycling.

[0038] It should be noted that enough insulation mechanisms can be set up according to the actual situation to ensure that the cut pipe can be cooled to room temperature before rotating to the last station and that the surface grinding operation can be completed.

[0039] Example 2, as Figure 5-6 As shown, the laser cutting equipment for decorative pipes proposed in this invention, compared with Embodiment 1, further details the structure of the grinding component; the grinding component includes a motor g6, a disc 31, a sponge layer 32, and a grinding plate b8; the motor g6 is mounted on the cover plate 5 and its output end is connected to the disc 31; the sponge layer 32 is connected to the disc 31; the grinding plate b8 is connected to the sponge layer 32; holes are provided on the disc 31; a rod a29 that is slidably connected to the holes is connected to the grinding plate b8; the output end of the motor c27 is connected to a gear c28; a gear ring c26 that meshes with the gear c28 is connected to the grinding plate a25.

[0040] It should be noted that a temperature sensor is installed inside the cylinder 4 to monitor the internal temperature value of the cylinder 4.

[0041] In this embodiment, when the cover plate 5 is combined with the cylinder 4, the sponge layer 32 creates a squeezing force between the grinding plate b8 and the cut surface of the pipe, facilitating the grinding plate b8 to grind the cut surface. The temperature sensor only starts working after the cut pipe has completely entered the cylinder 4. The temperature sensor will detect that the temperature inside the cylinder 4 first rises and then falls (because the temperature at the pipe cut surface is high, the temperature inside the cylinder 4 rises, and then the temperature at the cut surface slowly decreases and cools down, and the temperature inside the cylinder 4 decreases accordingly). When the temperature sensor detects that the temperature inside the cylinder 4 has recovered to and maintained at room temperature, the temperature sensor feeds back to the external controller. The external controller controls the motors c27 and g6 to work. The motor c27 drives the gear c28 to rotate, the gear c28 drives the gear ring c26 to rotate, and the gear ring c26 drives the grinding plate a25 to rotate. At the same time, the motor g6 drives the disc 31 to rotate, and the disc 31 drives the grinding plate b8 to rotate through the rod a29, so that the grinding plates a25 and b8 can perform the grinding function of the pipe cut surface.

[0042] It is worth noting that the cut pipe will not rotate with the grinding plates a25 and b8 under the clamping action of the roller b38, thus ensuring the effectiveness of the grinding plates a25 and b8 in grinding the cut surface of the pipe.

[0043] Example 3, as Figure 7-8 As shown, the laser cutting equipment for decorative pipes proposed in this invention, compared with Embodiment 2, further includes an opening a on the rotating cylinder 2; a receiving column 9 (with an inclined guide groove on the receiving column 9) is slidably provided inside the opening a; the receiving column 9 extends through the circular opening on the cylinder 4 to the inside of the cylinder 4; a toothed plate is provided on the receiving column 9; a motor h33 is installed inside the rotating cylinder 2, and the output end of the motor h33 is connected to a gear d37 that meshes with the toothed plate; an opening b is provided on the rotating cylinder 2; a door panel 18 is hinged to the opening b.

[0044] In this embodiment, when the laser cutter 34 cuts the pipe, the slag generated during the cutting process will fall into the guide trough and slide down into the deflector cylinder 2 for recycling. By opening the door panel 18 on the deflector cylinder 2, the slag collected in the deflector cylinder 2 can be cleaned.

[0045] Before the cover plate 5 is closed, the motor h33 can drive the gear d37 to rotate, which in turn cooperates with the toothed plate on the receiving column 9 to transport the receiving column 9 into the cylinder 4, so that the cover plate 5 can be closed.

[0046] It should be noted that all electrical equipment in this patent is controlled by an external controller (including but not limited to a PLC controller).

[0047] In summary, when using this invention, the pipe to be cut is placed on the conveying unit 15 and pushed to the initial point (i.e., one end of the pipe to be cut is located at the heating unit). Then, the telescopic component a12 is activated, which drives the U-shaped plate and rollers a13 to move towards the pipe axis, so that the rollers a13 around the pipe clamp and fix the pipe, making the pipe axis coincide with the axis of the annular plate 10. The motor a16 drives the rollers a13 to rotate while cooperating with the conveying unit 15 to convey the pipe. When the pipe stops being conveyed, the pipe to be cut... The cutting point is located at the heating section, and simultaneously, part of the pipe moves into the cylinder 4. At this time, the external controller controls the telescopic component c7 to work. The telescopic component c7 drives the U-shaped plate b and the roller b38 to move towards the pipe axis, so that the roller b38 contacts the pipe surface. There is only contact between the two without any squeezing force, so as to avoid affecting the normal rotation of the pipe. Then, the electromagnetic induction heating coil 22 is turned on to heat the pipe cutting point, realizing the preheating function of the cutting point. Preheating of carbon steel pipes before cutting can balance the overall temperature of the pipe in advance and reduce the cutting time. Preheating reduces thermal stress by minimizing the local temperature gradient during laser cutting. Furthermore, preheating enhances the atomic mobility of the material, improving its toughness and making it more resilient to cutting stress. Preheated pipes also produce less slag during laser cutting, facilitating subsequent slag removal. After preheating, the telescopic component b20 moves the sliding frame 35, which in turn moves the laser cutter 34 and the heating element. This moves the laser cutter 34 to the cutting point, activating the laser cutter 34 and motor b23. Motor b23 drives gear b24, which in turn drives the gear ring a11. The rotating gear ring drives the telescopic component a12 to rotate, which in turn drives the roller a13 to make a circular motion. The roller a13 uses the friction between itself and the pipe to drive the pipe to rotate, so that the laser cutter 34 can realize the cutting function of the pipe. The slag generated during the cutting process will fall into the guide trough and slide down the guide trough into the rotating cylinder 2 for recycling. By opening the door plate 18 on the rotating cylinder 2, the slag collected in the rotating cylinder 2 can be cleaned. After the cutting function is realized, the telescopic component b20 drives the laser cutter 34 and the heating part to reset so as to carry out the next cutting operation.

[0048] When the laser cutter 34 completes the cutting of the pipe, the rollers b38 around the perimeter limit the cut pipe to prevent it from falling. Then, the external controller controls the telescopic component c7 to work, causing the rollers b38 to clamp the cut pipe. Next, the external controller controls motor f21, which drives the rollers b38 to rotate, conveying the cut pipe into the cylinder 4 until one end of the cut pipe contacts the grinding plate a25. Then, the external controller controls motor h33, which drives gear d37 to rotate. This, in turn, works with the toothed plate on the receiving column 9 to convey the receiving column 9 into the cylinder 4, allowing the cover plate 5 to close. Then, the external controller controls motor a16, which drives gear a17 to rotate. Gear a17 drives gear ring b3 to rotate, which in turn drives the rotating cylinder 2 to rotate. The rotating cylinder 2 then drives the insulation mechanism to perform a clockwise circular motion (see reference). Figure 1 This causes the next insulation mechanism to rotate to the pipe to be cut.

[0049] When the cylinder 4 moves away from the pipe to be cut, the motor d30 is controlled to work. The motor d30 drives the cover plate 5 to rotate and engage with the cylinder 4. At this time, the grinding assembly contacts the other end of the cut pipe. The cut pipe is located inside the cylinder 4. The cylinder 4 can provide a certain heat preservation effect for the cut pipe, so that the cut surface of the pipe can be cooled slowly. Slow cooling can also ensure that the entire workpiece is cooled to room temperature evenly, avoiding secondary thermal stress caused by uneven cooling.

[0050] When the cover plate 5 is combined with the cylinder 4, the sponge layer 32 creates a squeezing force between the grinding plate b8 and the cut surface of the pipe, facilitating the grinding plate b8 to grind the cut surface. The temperature sensor only starts working after the cut pipe has completely entered the cylinder 4. The temperature sensor will detect that the temperature inside the cylinder 4 first rises and then falls (because the temperature at the pipe cut surface is higher, causing the temperature inside the cylinder 4 to rise, and then the temperature at the cut surface slowly decreases and cools down, causing the temperature inside the cylinder 4 to drop accordingly). When the temperature sensor detects that the temperature inside the cylinder 4 has returned to and maintained at room temperature, the temperature sensor feeds back to the external controller. The external controller controls the motors c27 and g6 to work. The motor c27 drives the gear c28 to rotate, the gear c28 drives the gear ring c26 to rotate, and the gear ring c26 drives the grinding plate a25 to rotate. At the same time, the motor g6 drives the disc 31 to rotate, and the disc 31 drives the grinding plate b8 to rotate through the rod a29, so that the grinding plates a25 and b8 can perform the grinding function of the pipe cut surface.

[0051] When the cylinder 4 rotates to the last station (i.e., rotates clockwise to the station before the one where the pipe to be cut is located), the motor d30 drives the cover plate 5 to rotate and separate from the cylinder 4. Then, the cut pipe inside the cylinder 4 moves out of the cylinder 4 under the drive of the roller b38. Workers can place recycling boxes or other structures here for recycling, and at the same time, they can clean up the debris generated during grinding inside the cylinder 4.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A laser cutting device for decorative pipes, characterized in that, The system includes a conveyor (15), a motor a (16), a base (1), and a steering cylinder (2); the steering cylinder (2) is rotatably connected to the base (1); the motor a (16) is mounted on the base (1) and is driven by the steering cylinder (2); the conveyor (15) is located on one side of the base (1); and also includes: The positioning mechanism includes an annular plate (10), a toothed ring a (11), a clamping assembly a, a motor b (23), a moving assembly, a heating element, and a laser cutter (34); the annular plate (10) is mounted on the ground via support legs; the toothed ring a (11) is rotatably connected to the annular plate (10); the motor b (23) is mounted on the annular plate (10) and its output end is connected to a gear b (24) that meshes with the toothed ring a (11); the clamping assembly a has multiple sets and is circumferentially distributed on the toothed ring; the moving assembly is mounted on the annular plate (10) and is connected to the heating element and the laser cutter (34); The insulation mechanism is provided with multiple components arranged circumferentially on the steering cylinder (2); the insulation mechanism includes a cylinder (4), a cover plate (5), a grinding plate a (25), a motor c (27), a motor d (30), a clamping assembly b, and a grinding assembly; the cylinder (4) is connected to the steering cylinder (2); a circular opening is provided on the cylinder (4); the grinding plate a (25) is rotatably located inside the circular opening; the motor c (27) is located on the cylinder (4) and is connected to the grinding plate a (25) for transmission; a U-shaped part is provided on the cylinder (4); the cover plate (5) is rotatably connected to the U-shaped part; the motor d (30) is located on the U-shaped part and its output end is connected to the cover plate (5); the grinding assembly is located on the cover plate (5); multiple clamping assemblies b are provided and arranged circumferentially on the cylinder (4); The moving component includes a connecting plate (36), a sliding frame (35), and a telescopic component b (20); the connecting plate (36) is connected to the annular plate (10); the sliding frame (35) is slidably connected to the connecting plate (36); the laser cutter (34) is connected to the sliding frame (35); the telescopic component b (20) is connected to the annular plate (10) and is connected to the sliding frame (35); The heating element includes a ring (19) and an electromagnetic induction heating coil (22); the ring (19) is connected to the sliding frame (35); the electromagnetic induction heating coil (22) is located inside the ring (19); The polishing assembly includes a motor g (6), a disc (31), a sponge layer (32), and a polishing plate b (8); the motor g (6) is mounted on the cover plate (5) and its output end is connected to the disc (31); the sponge layer (32) is connected to the disc (31); the polishing plate b (8) is connected to the sponge layer (32); the disc (31) has holes; the polishing plate b (8) is connected to a rod a (29) that is slidably connected to the holes; An opening a is provided on the steering cylinder (2); a receiving column (9) is slidably provided inside the opening a; the receiving column (9) extends through the circular opening on the cylinder (4) to the inside of the cylinder (4); a toothed plate is provided on the receiving column (9); a motor h (33) is installed inside the steering cylinder (2), and the output end of the motor h (33) is connected to a gear d (37) that meshes with the toothed plate.

2. The laser cutting equipment for decorative pipes according to claim 1, characterized in that, The output end of motor a (16) is connected to gear a (17); the steering cylinder (2) is connected to a gear ring b (3) that meshes with gear a (17).

3. The laser cutting equipment for decorative pipes according to claim 1, characterized in that, The clamping assembly a includes a telescopic component a (12), a U-shaped plate a, a motor e (14) and a roller a (13); the telescopic component a (12) is connected to the toothed ring a (11); the U-shaped plate a is connected to the telescopic component a (12); the roller a (13) is rotatably located inside the U-shaped plate a; the motor e (14) is located on the U-shaped plate a and its output end is connected to the roller a (13).

4. The laser cutting equipment for decorative pipes according to claim 1, characterized in that, The clamping assembly b includes a telescopic component c (7), a U-shaped plate b, a motor f (21), and a roller b (38); the telescopic component c (7) is connected to the cylinder (4); the U-shaped plate b is connected to the telescopic component c (7); the roller b (38) is rotatably located inside the U-shaped plate b; the motor f (21) is located on the U-shaped plate b and its output end is connected to the roller b (38).

5. The laser cutting equipment for decorative pipes according to claim 1, characterized in that, The output end of motor c (27) is connected to gear c (28); a gear ring c (26) that meshes with gear c (28) is connected to grinding plate a (25).

6. The laser cutting equipment for decorative pipes according to claim 1, characterized in that, An opening b is provided on the steering cylinder (2); a door panel (18) is hinged to the opening b.

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