Flexible screen laser cutting equipment capable of reducing influence of heat effect

Abstract

The invention relates to the related technical field of laser beam cutting machining, in particular to flexible screen laser cutting equipment capable of reducing heat effect influence, which comprises a base, and further comprises an assembly plate movably arranged above the base and a laser cutting head arranged at the side part of the assembly plate, the assembly plate can be driven by a linear driving module arranged on the base, and the laser cutting head is arranged on the side part of the assembly plate. The assembling plate moves in the length, width and height directions of the base, a fixed arm is fixed to the bottom of the assembling plate, and a rotating pipe is rotationally installed on the fixed arm; before the laser cutting head changes the direction of a cutting path, the air cylinder can drive the rotating pipe to rotate through the transmission mechanism, position switching of the air blowing head and the flow guiding piece is achieved, and it is guaranteed that the air blowing head and the flow guiding piece are always located at the front end and the rear end of the moving direction of the laser cutting head respectively under the condition of different cutting paths; according to the dynamically-adjusted blowing mode, cooling gas can directly act on the cutting seam more accurately, heat is effectively taken away, and the cooling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of laser beam cutting processing technology, specifically to a flexible screen laser cutting device that reduces the impact of thermal effects. Background Technology

[0002] Flexible displays, as a cutting-edge display technology, are widely used in smartphones, tablets, wearable devices, and other fields due to their unique advantages such as thinness, flexibility, and foldability, bringing users a brand-new visual experience and ease of use. In the production process of flexible displays, laser cutting technology is widely used due to its significant advantages such as high precision, high efficiency, and non-contact processing. The cutting head moves linearly along the X-axis or Z-axis, reducing mechanical damage and improving cutting quality.

[0003] However, the thermal effects generated during laser cutting are a problem that urgently needs to be solved. Thermal effects can cause defects such as melting, burrs, and chipping at the edges of flexible screen materials, affecting the smoothness and quality of the cut edges. Furthermore, thermal effects can also cause changes in the microstructure of the material, thereby affecting its optical and electrical properties.

[0004] To address this issue, existing laser cutting equipment typically incorporates cooling nozzles near the cutting head. These nozzles spray cooling gas onto the cutting area, promptly removing heat generated during the cutting process and thus reducing the material temperature and the impact of thermal effects. However, existing air-blowing cooling methods have some limitations. Whether blowing directly onto the screen surface or using an oblique blowing method, the coverage area of ​​the cooling gas is relatively fixed, making it difficult to fully cover the entire length of the cut. Especially when the cutting head moves rapidly, the cooling gas may not be able to reach the front end of the cut in time, leading to localized heat accumulation. Furthermore, the cooling gas dissipates quickly after being blown out, resulting in low utilization of the cooling gas and affecting the cooling effect. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible screen laser cutting device that reduces the impact of thermal effects, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] Flexible screen laser cutting equipment to reduce the impact of thermal effects, including a base, and also including:

[0008] The assembly plate is located above the base and the laser cutting head is located on the side of the assembly plate. The assembly plate can be driven by the linear drive module on the base to move along the length, width and height of the base. A fixed arm is fixed at the bottom of the assembly plate, and a rotating tube is rotatably installed on the fixed arm. A horizontal plate is fixed at the bottom of the rotating tube, and the laser cutting head passes through the rotating tube and the horizontal plate.

[0009] The air blowing head fixed to the bottom of the horizontal plate and the guide component movable at the bottom of the horizontal plate are located on both sides of the laser cutting head.

[0010] The cylinder fixed to the assembly plate can drive the rotating tube to rotate through the transmission mechanism before the laser cutting head changes the direction of the cutting path, so that the air blowing head and the guide are respectively located at the front end and the rear end of the laser cutting head's moving direction. The cylinder can also drive the guide to perform an upward movement through the rolling engagement mechanism before the rotating tube performs the rotation action, so that the guide is separated from the screen.

[0011] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the flow guide has two first inclined portions on the side facing the air blowing head, and multiple rollers are provided at the bottom. When the rollers contact the screen surface, the flow guide and the screen surface form an air channel. The inner side of the flow guide also has two second inclined portions, so that the width of the air channel gradually decreases in the direction of movement of the laser cutting head.

[0012] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the transmission mechanism includes a vertical shaft rotatably mounted on the bottom of the assembly plate, a first gear fixed to the end of the vertical shaft away from the assembly plate, and a second gear fixed on the rotating tube. The first gear meshes with the second gear, and a sliding fit structure is provided between the vertical shaft and the cylinder.

[0013] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the sliding fit structure includes a sliding sleeve that is slidably sleeved on the vertical shaft, the sliding sleeve being fixedly connected to the movable end of the cylinder, and a drive column being fixedly provided on the sliding sleeve. The vertical shaft is provided with a plurality of connected grooves that are adapted to the drive column, and the drive column extends into the groove and is slidably connected to the vertical shaft.

[0014] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: multiple grooves are distributed along a spiral path, each groove includes a first slide groove and a second slide groove connected together, the first slide groove is arranged along the axial direction of the vertical shaft, and the second slide groove is spirally arranged, and the rolling engagement mechanism is triggered when the drive column slides in the first slide groove.

[0015] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the bottom of the fixed arm is provided with a guide groove, the rolling engagement mechanism includes a slider that is slidably fitted in the guide groove, the slider is connected to two sets of elastic structures on both sides of the fixed arm, and is also provided with two sets of driven structures between it and the moving end of the cylinder, and the slider is also connected to the guide member through a follower structure.

[0016] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the elastic structure includes a crossbar fixed to the side of the fixed arm by a protruding block and a spring sleeved on the outer periphery of the crossbar. The crossbar passes through the slider and is slidably connected to it. The two ends of the spring are respectively connected to the protruding block and the slider.

[0017] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the driven structure includes a vertical arm fixed to the slider via a connecting arm, the side of the vertical arm is provided with multiple protrusions at equal intervals, the protrusions are arranged in a trapezoidal shape and both sides are formed with inclined surfaces, and the movable end of the cylinder is connected to a drive wheel that cooperates with the protrusions.

[0018] The flexible screen laser cutting equipment for reducing the impact of thermal effects as described above: the follower structure includes a follower ring that is slidably sleeved on the rotating tube and fixedly connected to the guide member through two columns. The two columns are slidably connected to the horizontal plate. The follower ring is provided with an annular groove, and an insert block is slidably fitted in the annular groove.

[0019] A connecting rod is provided between the fitting block and the slider, and the two ends of the connecting rod are respectively hinged to the fitting block and the slider.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] For the guide component, the two first inclined parts can collect the cooling gas blown away by the air blower, allowing the cooling gas to enter the guide component, thereby reducing the loss of cooling gas and improving the utilization rate of cooling gas. Secondly, the setting of the two second inclined parts makes the cross-sectional conductivity of the air duct gradually decrease during the movement of the cooling gas in the guide component, thereby accelerating the cooling gas and improving the efficiency of the cooling gas in carrying the hot air out of the cutting seam.

[0022] In addition, whenever the laser cutting head changes the direction of the cutting path, the cylinder can drive the rotating tube to rotate through the transmission mechanism, thereby switching the position of the air blowing head and the guide component, ensuring that the air blowing head and the guide component are always located at the front and rear ends of the laser cutting head's moving direction, respectively, under different cutting paths.

[0023] Therefore, this dynamically adjusted air blowing method can more precisely apply cooling gas directly to the cutting seam, effectively removing heat and improving cooling efficiency. At the same time, it can also ensure that the cooling gas evenly covers the cutting seam, avoiding the uneven cooling problem caused by the fixed air blowing angle in existing methods. In addition, the dynamic following design of the air blowing head further enhances the protective effect of the cooling gas on the cutting area and reduces the adverse effects of thermal effects. This cooling method, which is adjusted according to the cutting path, not only improves the cutting quality but also enhances the performance stability of the flexible screen material, bringing optimization to the laser cutting process of flexible screens. Attached Figure Description

[0024] Figure 1 A schematic diagram of one embodiment of a flexible screen laser cutting equipment designed to reduce the impact of thermal effects.

[0025] Figure 2 A schematic diagram of another aspect of an embodiment of a flexible screen laser cutting device designed to reduce the impact of thermal effects.

[0026] Figure 3 A schematic diagram of the structure of a flexible screen laser cutting equipment from another angle, designed to reduce the impact of thermal effects.

[0027] Figure 4 A front view of an embodiment of a flexible screen laser cutting device designed to reduce the impact of thermal effects.

[0028] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0029] Figure 6 A schematic diagram of the assembly of the laser cutting head in one embodiment of a flexible screen laser cutting equipment designed to reduce the impact of thermal effects.

[0030] Figure 7 A schematic diagram of the flow guide component in one embodiment of a flexible screen laser cutting equipment designed to reduce the impact of thermal effects.

[0031] Figure 8 for Figure 7 Enlarged view of the structure at point B in the middle.

[0032] Figure 9 An exploded view of the rolling fit mechanism in one embodiment of a flexible screen laser cutting equipment designed to reduce the impact of thermal effects.

[0033] In the diagram: 1. Base; 2. Horizontal platform; 3. Movable seat; 4. Lifting seat; 5. Assembly plate; 6. Laser cutting head; 7. Fixed arm; 701. Guide groove; 8. Rotating tube; 9. First gear; 10. Second gear; 11. Cylinder; 1101. Drive wheel; 12. Vertical shaft; 1201. First sliding groove; 1202. Second sliding groove; 13. Sliding sleeve; 1301. Drive column; 14. Air blowing head; 15. Guide component; 1501. First inclined part; 1502. Second inclined part; 1503. Roller; 16. Horizontal plate; 17. Column; 18. Follower ring; 1801. Annular groove; 19. Fitting block; 20. Connecting rod; 21. Slider; 22. Vertical arm; 2201. Protrusion; 23. Protruding block; 24. Crossbar; 25. Spring; 26. Connecting arm. Detailed Implementation

[0034] 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.

[0035] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Please see Figures 1-9 In this embodiment, the flexible screen laser cutting equipment for reducing the impact of thermal effects includes a base 1, and further includes:

[0037] The assembly plate 5 is located above the base 1 and the laser cutting head 6 is located on the side of the assembly plate 5. The assembly plate 5 can be driven by the linear drive module on the base 1 to move along the length, width and height of the base 1. The bottom of the assembly plate 5 is fixed with a fixed arm 7, and a rotating tube 8 is rotatably installed on the fixed arm 7. A horizontal plate 16 is fixed at the bottom of the rotating tube 8, and the laser cutting head 6 passes through the rotating tube 8 and the horizontal plate 16.

[0038] The air blowing head 14 fixed to the bottom of the horizontal plate 16 and the flow guide 15 movably disposed at the bottom of the horizontal plate 16 are located on both sides of the laser cutting head 6.

[0039] The cylinder 11, fixed on the mounting plate 5, can drive the rotating tube 8 to rotate through the transmission mechanism before the laser cutting head 6 changes the direction of the cutting path, so that the air blowing head 14 and the guide 15 are respectively located at the front end and rear end of the moving direction of the laser cutting head 6. The cylinder 11 can also drive the guide 15 to perform an upward action through the rolling engagement mechanism before the rotating tube 8 performs the rotation action, so that the guide 15 is separated from the screen.

[0040] In this embodiment, the linear drive module includes a cross platform 2 movably disposed on the base 1, a movable seat 3 movably disposed on the cross platform 2, and a lifting seat 4 movably disposed on the side of the movable seat 3, and the assembly plate 5 is fixed to the side of the lifting seat 4.

[0041] The horizontal platform 2 can move along the length of the base 1, and the movable seat 3 can move along the width of the base 1 on the horizontal platform 2. This enables the X and Z axis movement of the laser cutting head 6, achieving effective switching of the cutting path. The lifting seat 4 can move relative to the movable seat 3 along the height direction (i.e., the Y axis) of the base 1, thereby enabling fine adjustment of the distance between the bottom of the laser cutting head 6 and the screen.

[0042] It should be noted that the movement of the horizontal platform 2, the movable seat 3, and the lifting seat 4 can be driven by a lead screw and a servo motor. Of course, the appropriate method can be selected according to actual needs, as long as the drive requirements and accuracy are met. This application will not elaborate further on this.

[0043] It should also be emphasized that during the operation of the laser cutting head 6, the laser beam emitted by it coincides with the central axis of the rotating tube 8. Therefore, after the rotating tube 8 rotates, the distance between the air blowing head 14 and the air guide 15 and the cut point of the screen remains unchanged, thereby ensuring the consistency of the cooling effect.

[0044] As a further embodiment of the present invention, please refer again. Figure 7 The air guide 15 has two first inclined portions 1501 on the side facing the air blowing head 14, and multiple rollers 1503 are provided at the bottom. When the rollers 1503 contact the screen surface, the air guide 15 and the screen surface form an air channel. The inner side of the air guide 15 also has two second inclined portions 1502, so that the width of the air channel gradually decreases in the moving direction of the laser cutting head 6.

[0045] In this embodiment, during the cutting process, multiple rollers 1503 contact the screen surface. When the horizontal platform 2 moves along the length direction of the base 1 or the moving seat 3 moves along the width direction of the base 1, the air blowing head 14 and the guide 15 are respectively located at the front end and rear end of the laser cutting head 6 in the moving direction. The air blowing head 14 blows cooling gas to the cutting point of the screen. Under the guidance of the two first inclined parts 1501, the cooling gas can be gathered, allowing the cooling gas to enter the guide 15, thereby reducing the loss of cooling gas and improving the utilization rate of cooling gas. Secondly, the setting of the two second inclined parts 1502 makes the cross-sectional conductivity of the air duct gradually decrease during the movement of the cooling gas in the guide 15, thereby accelerating the cooling gas and improving the efficiency of the cooling gas in carrying hot air out of the cutting seam.

[0046] In addition, whenever the laser cutting head 6 changes the direction of the cutting path, the cylinder 11 can drive the rotating tube 8 to rotate through the transmission mechanism to switch the positions of the air blowing head 14 and the guide 15, so as to ensure that the air blowing head 14 and the guide 15 are always located at the front end and rear end of the laser cutting head 6 respectively in the direction of movement under different cutting paths.

[0047] Therefore, this dynamically adjusted air blowing method can more precisely apply cooling gas directly to the cutting seam, effectively removing heat and improving cooling efficiency. At the same time, it can also ensure that the cooling gas evenly covers the cutting seam, avoiding the uneven cooling problem caused by the fixed air blowing angle in existing methods. In addition, the dynamic following design of the air blowing head 14 further enhances the protective effect of the cooling gas on the cutting area and reduces the adverse effects of thermal effects. This cooling method, which is adjusted according to the cutting path, not only improves the cutting quality but also enhances the performance stability of the flexible screen material, bringing optimization to the laser cutting process of flexible screens.

[0048] As a further embodiment of the present invention, please refer again. Figure 5 , Figure 8 as well as Figure 9The transmission mechanism includes a vertical shaft 12 rotatably mounted on the bottom of the assembly plate 5, a first gear 9 fixed to one end of the vertical shaft 12 away from the assembly plate 5, and a second gear 10 fixed to the rotating tube 8. The first gear 9 meshes with the second gear 10. A sliding fit structure is provided between the vertical shaft 12 and the cylinder 11. The sliding fit structure includes a sliding sleeve 13 slidably sleeved on the vertical shaft 12. The sliding sleeve 13 is fixedly connected to the movable end of the cylinder 11, and a drive column 1301 is fixedly provided on the sliding sleeve 13. The vertical shaft 12 is provided with multiple connected grooves adapted to the drive column 1301. The drive column 1301 extends into the groove and is slidably connected to the vertical shaft 12. Multiple grooves are distributed along a spiral path. Each groove includes a first slide groove 1201 and a second slide groove 1202 connected together. The first slide groove 1201 is arranged along the axial direction of the vertical shaft 12, and the second slide groove 1202 is spirally arranged. When the drive column 1301 slides in the first slide groove 1201, the rolling engagement mechanism is triggered.

[0049] In this embodiment, during the processing, whenever it is necessary to adjust the position of the air blowing head 14 and the guide 15, the movable end of the cylinder 11 moves, causing the sliding sleeve 13 to slide along the axial direction of the vertical shaft 12 on the vertical shaft 12. Correspondingly, the drive column 1301 will slide in the first sliding groove 1201 and the second sliding groove 1202.

[0050] Specifically, with attachment Figure 5 Taking the state shown as an example, at this time, the roller 1503 is in contact with the screen surface, the movable end of the cylinder 11 is extended, and the drive column 1301 first slides along the first slide groove 1201. Since the first slide groove 1201 is arranged along the axial direction of the vertical shaft 12, the vertical shaft 12 does not rotate. During this process, the rolling engagement mechanism is triggered, driving the guide 15 to lift up so that the roller 1503 is separated from the screen surface, so as to avoid the roller 1503 scratching the screen surface when the guide 15 changes position later.

[0051] After the drive column 1301 enters the second slide groove 1202, it will slide and engage with the vertical shaft 12, thereby causing the vertical shaft 12 to rotate. It should be emphasized that during the process of the drive column 1301 passing through the second slide groove 1202, the vertical shaft 12 will drive the rotating tube 8 to rotate 90° through the first gear 9 and the second gear 10. Therefore, it is possible to adjust the air blowing head 14 and the flow guide 15 at four equidistant points in the circumferential direction of the laser beam, ensuring that under different cutting paths, the air blowing head 14 and the flow guide 15 are always located at the front end and rear end of the moving direction of the laser cutting head 6, respectively, realizing a dynamically adjustable air blowing method.

[0052] As a further embodiment of the present invention, please refer again. Figure 5 , Figure 8 as well as Figure 9 The bottom of the fixed arm 7 is provided with a guide groove 701. The rolling engagement mechanism includes a slider 21 that is slidably fitted into the guide groove 701. The slider 21 is connected to two sets of elastic structures on both sides of the fixed arm 7, and also has two sets of driven structures between it and the movable end of the cylinder 11. The slider 21 is also connected to the guide member 15 through a follower structure. The elastic structure includes a crossbar 24 fixed to the side of the fixed arm 7 by a protruding block 23 and a spring 25 sleeved on the outer periphery of the crossbar 24. The crossbar 24 passes through the slider 21 and is slidably connected to it. The two ends of the spring 25 are respectively connected to the protruding block 23 and the slider 21. The driven structure includes a vertical arm 22 fixed to the slider 21 via a connecting arm 26. The vertical arm 22 has a plurality of protrusions 2201 equidistantly arranged on its side. The protrusions 2201 are trapezoidal and have inclined surfaces on both sides. The movable end of the cylinder 11 is connected to a drive wheel 1101 that cooperates with the protrusions 2201.

[0053] In this embodiment, with attachment Figure 8 Taking the illustrated state as an example, when the movable end of the cylinder 11 moves downward, firstly, the drive column 1301 slides within the first slide groove 1201, the vertical shaft 12 does not rotate, the drive wheel 1101 acts on the upper inclined surface of the protrusion 2201, thereby causing the vertical arm 22 to move aside. The vertical arm 22 drives the slider 21 to slide towards the protruding block 23 on the crossbar 24 through the connecting arm 26, causing the spring 25 to be compressed. At the same time, the slider 21 drives the guide 15 to rise through the follower structure, preventing the roller 15 from changing position when the guide 15 changes position later. 03. The screen surface is scratched. Then, the drive wheel 1101 rolls to the vertical surface of the protrusion 2201 away from the support arm 22. The guide 15 remains in the raised state, and the drive column 1301 enters the second slide groove 1202, causing the vertical shaft 12 to rotate. The rotating tube 8 rotates, causing the air blowing head 14 and the guide 15 to switch positions. After the drive wheel 1101 separates from the vertical surface of the protrusion 2201 away from the support arm 22, the spring 25 rebounds, the slider 21 resets, and the guide 15 moves down.

[0054] The follower structure includes a follower ring 18 that is slidably sleeved on the rotating tube 8 and fixedly connected to the guide member 15 through two columns 17. The two columns 17 are slidably connected to the horizontal plate 16. The follower ring 18 is provided with an annular groove 1801, and a fitting block 19 is slidably fitted in the annular groove 1801.

[0055] A connecting rod 20 is provided between the fitting block 19 and the slider 21, and the two ends of the connecting rod 20 are respectively hinged to the fitting block 19 and the slider 21.

[0056] Specifically, when the upright arm 22 moves aside under the action of the drive wheel 1101, the slider 21 slides toward the protruding block 23, thereby pulling the follower ring 18 upward on the rotating tube 8 through the connecting rod 20 and the fitting block 19. The follower ring 18 then drives the guide 15 to be lifted up through the two columns 17. Conversely, during the rebound of the spring 25, the slider 21 slides away from the protruding block 23 and resets, then pushes the follower ring 18 downward on the rotating tube 8 through the connecting rod 20 and the fitting block 19. This causes the follower ring 18 to drive the guide 15 downward through the two columns 17, ensuring that during the cutting process, the air duct that improves the utilization rate of cooling gas can be formed between the guide 15 and the screen.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Flexible screen laser cutting equipment with reduced thermal effects, including a base; Its features are, Also includes: The assembly plate is located above the base and the laser cutting head is located on the side of the assembly plate. The assembly plate can be driven by the linear drive module on the base to move along the length, width and height of the base. A fixed arm is fixed at the bottom of the assembly plate, and a rotating tube is rotatably installed on the fixed arm. A horizontal plate is fixed at the bottom of the rotating tube, and the laser cutting head passes through the rotating tube and the horizontal plate. The air blowing head fixed to the bottom of the horizontal plate and the guide component movable at the bottom of the horizontal plate are located on both sides of the laser cutting head. The cylinder fixed to the assembly plate can drive the rotating tube to rotate through the transmission mechanism before the laser cutting head changes the direction of the cutting path, so that the air blowing head and the guide are respectively located at the front end and the rear end of the laser cutting head's moving direction. The cylinder can also drive the guide to perform an upward movement through the rolling engagement mechanism before the rotating tube performs the rotation action, so that the guide is separated from the screen.

2. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 1, characterized in that, The air guide has two first inclined portions on the side facing the air blowing head, and multiple rollers are provided at the bottom. When the rollers contact the screen surface, the air guide and the screen surface form an air channel. The inner side of the air guide also has two second inclined portions, so that the width of the air channel gradually decreases in the direction of laser cutting head movement.

3. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 1, characterized in that, The transmission mechanism includes a vertical shaft rotatably mounted on the bottom of the assembly plate, a first gear fixed to one end of the vertical shaft away from the assembly plate, and a second gear fixed to the rotating tube. The first gear meshes with the second gear, and a sliding fit structure is provided between the vertical shaft and the cylinder.

4. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 3, characterized in that, The sliding fit structure includes a sliding sleeve that is slidably sleeved on the vertical shaft. The sliding sleeve is fixedly connected to the movable end of the cylinder, and a drive column is fixedly provided on the sliding sleeve. The vertical shaft is provided with a plurality of connected grooves that are adapted to the drive column. The drive column extends into the groove and is slidably connected to the vertical shaft.

5. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 4, characterized in that, Multiple grooves are distributed along a spiral path. Each groove includes a first slide groove and a second slide groove connected together. The first slide groove is arranged along the axial direction of the vertical shaft, and the second slide groove is spirally arranged. When the drive column slides in the first slide groove, the rolling engagement mechanism is triggered.

6. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 1, characterized in that, The bottom of the fixed arm is provided with a guide groove. The rolling engagement mechanism includes a slider that is slidably fitted in the guide groove. The slider is connected to two sets of elastic structures on both sides of the fixed arm and is also provided with two sets of driven structures between it and the movable end of the cylinder. The slider is also connected to the guide member through a follower structure.

7. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 6, characterized in that, The elastic structure includes a crossbar fixed to the side of the fixed arm by a protrusion and a spring sleeved on the outer periphery of the crossbar. The crossbar passes through the slider and is slidably connected to it. The two ends of the spring are respectively connected to the protrusion and the slider.

8. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 6, characterized in that, The driven structure includes a vertical arm fixed to the slider via a connecting arm. The vertical arm has multiple protrusions equidistantly arranged on its side. The protrusions are trapezoidal in shape and have inclined surfaces on both sides. The movable end of the cylinder is connected to a drive wheel that cooperates with the protrusions.

9. The flexible screen laser cutting equipment for reducing the impact of thermal effects according to claim 6, characterized in that, The follower structure includes a follower ring that is slidably sleeved on the rotating tube and fixedly connected to the guide member through two columns. The two columns are slidably connected to the horizontal plate. The follower ring is provided with an annular groove, and an insert block is slidably fitted in the annular groove.

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