A steel strip laser cutting apparatus

Abstract

The application relates to the technical field of laser cutting equipment, and relates to a steel strip laser cutting device which comprises a device base, symmetrical side supports are arranged on the top of the device base, a support module is arranged on the device base and located between the side supports, a moving module is arranged on the side supports, a laser cutting head is installed on the moving module, the support module comprises a support plate fixed on the device base, the laser cutting head is pressed to drive the lifting frame to synchronously move downwards, the pressing wheel of the pressing mechanism is pressed and tightly fitted on the upper surface of the steel strip cutting position, meanwhile, the lifting frame moves downwards to drive the pressing block to extrude the pressing wheel, the turnover rod is driven to rotate and pull the connecting rod and the lower support table to lift, the steel strip is tightly pressed and supported from the bottom, the upper and lower structures form rigid clamping and limiting, and the problems of steel strip warping, edge curling and arching deformation caused by high temperature laser cutting are inhibited.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting equipment technology, and specifically relates to a laser cutting device for steel strip. Background Technology

[0002] Steel strip is a basic raw and auxiliary material in various machinery manufacturing, hardware processing, steel structure production, and precision instrument processing industries. It has the characteristics of high strength, good toughness, excellent flatness, and strong plasticity. It is often processed into standard specification parts by laser cutting and is widely used in many production fields such as hardware accessories, precision stamping, equipment components, and steel structure processing.

[0003] In actual processing, existing steel strip laser cutting equipment uses conventional clamping structures that can only achieve single-sided clamping and limiting. The steel strip cutting station lacks rigid support, and the steel strip is prone to warping, arching, and curling deformation due to high temperature during laser cutting, resulting in a high scrap rate. Furthermore, at the moment the steel strip is completely cut, the residual stress in the steel strip can easily cause the strip to pull and move, further aggravating dimensional errors. Therefore, it is necessary to design a steel strip laser cutting equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a steel strip laser cutting device with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A steel strip laser cutting device includes a base platform with symmetrical side supports on both sides of the top of the base platform. A support module is positioned between the side supports on the base platform, and a movable module is mounted on the side supports, with a laser cutting head installed on the movable module. The support module includes a support plate fixed to the base platform, with a central slot at the center of the support plate. A lower support mechanism is provided on the support plate, including a lower support platform slidably connected in the central slot, which is connected to the side supports via a downward lifting mechanism. An edge clamping unit is provided on the side supports, including a lifting frame connected to the side supports via a floating support mechanism. A limit frame is slidably connected to the lifting frame. A limit sleeve matching the size of the groove at the top of the limit frame is fixed on the laser cutting head. Clamping mechanisms are evenly distributed on the lifting frame, and a follow-up avoidance mechanism connected to the clamping mechanisms is fixed on the limit frame.

[0006] As a further optimization of the present invention, the clamping mechanism includes a support frame uniformly fixed on the inner wall of the lifting frame, a sliding support is slidably sleeved on the support frame, and the sliding support and the support frame are connected to each other by a return spring.

[0007] As a further optimization of the present invention, a connecting plate is fixed between the sliding supports, and a pressure wheel and a friction wheel are rotatably connected on the connecting plate. A friction frame is fixed on the support frame and abuts against the friction wheel.

[0008] As a further optimization of the present invention, a connecting wheel is fixedly sleeved on both the pressure wheel and the friction wheel, and a connecting belt is tensioned on the connecting wheel.

[0009] As a further optimization of the present invention, the follow-up avoidance mechanism includes an arc-shaped bracket symmetrically fixed to the top of the limit frame, an avoidance wheel abutting against the side wall of the arc-shaped bracket, the avoidance wheel being rotatably connected to the fixed frame, and the fixed frame being fixed to the sliding support.

[0010] As a further optimization of the present invention, the floating support mechanism includes sliding blocks symmetrically fixed on the lifting frame, and a sliding groove for sliding the sliding blocks is provided on the side wall of the side support. The sliding blocks are connected to the side support by a support spring fixed at the top.

[0011] As a further optimization of the present invention, the downward lifting mechanism includes an inner support fixed on the side support, a flipping rod symmetrically rotatably connected to the inner support, and a connecting rod slidably connected in a long strip-shaped groove at one end of the flipping rod, the connecting rod being symmetrically fixed on the lower support platform.

[0012] As a further optimization of the present invention, an upper pressure wheel is fixed to the other end of the flipping rod, and a lower pressure block is fixed to the bottom of the sliding block above the upper pressure wheel.

[0013] As a further optimization of the present invention, support seats are evenly provided on both sides of the bottom of the support plate, and support wheels for supporting the steel belt are rotatably connected between the support seats.

[0014] As a further optimization of the present invention, the moving module includes a transverse frame slidably connected to a side support, a transverse electric slide rail fixed on one side of the side support, the transverse frame fixed to the moving end of the transverse electric slide rail, a moving support slidably connected to the transverse frame, a first motor screw module disposed on the transverse frame, the moving support connected to the moving end of the first motor screw module, a lifting support slidably connected to the moving support, a laser cutting head fixed on the lifting support, a second motor screw module disposed on the moving support, and the lifting support fixed to the moving end of the second motor screw module.

[0015] The beneficial effects of this invention are as follows: 1. When the laser cutting head of the present invention is pressed vertically downward, the limiting sleeve fixed at its bottom will be nested and engaged inside the groove at the top of the limiting frame, so that the laser cutting head can only perform horizontal feed cutting along the preset direction of the central groove, avoiding the situation of deviation and shaking of the laser cutting head during operation, and effectively ensuring the dimensional accuracy and cutting straightness of the steel strip cut to length.

[0016] 2. During the cutting operation of this invention, the laser cutting head presses down, causing the lifting frame to move down synchronously, so that the lower pressure wheel of the clamping mechanism presses tightly against the upper surface of the steel strip cutting position; at the same time, the lower movement of the lifting frame causes the lower pressure block to squeeze the upper pressure wheel, driving the flipping rod to rotate and pulling the connecting rod to lift, causing the lower support platform to tightly press against the bottom of the steel strip for support. The upper and lower structures form a rigid clamping limit, firmly fixing the steel strip cutting area and effectively suppressing the problems of steel strip warping, curling, and arching deformation caused by heat during laser high-temperature cutting.

[0017] 3. During the standby and initial cutting stages of the equipment of this invention, the reset spring continuously pushes the sliding support inward to ensure that the friction wheel is always in close contact with the friction frame. The static friction force locks the rotational freedom of the friction wheel. Then, through the synchronous transmission action of the connecting wheel and the connecting belt, the lower pressure wheel is locked, keeping the lower pressure wheel in a static and pressed state. When the steel belt is completely cut, the displacement of the front and rear sections of the steel belt can be effectively constrained, preventing the steel belt from pulling or slipping due to the release of residual stress, thus improving safety performance.

[0018] 4. When the laser cutting head of this invention performs horizontal feed cutting, the limiting frame moves synchronously with the laser cutting head, driving the arc-shaped bracket to push the avoidance wheel, and driving the sliding support to overcome the spring force of the reset spring and slide outward. On the one hand, it drives the lower pressure wheel to shift laterally to automatically avoid the laser cutting path, and on the other hand, it causes the friction wheel to disengage from the friction frame, completely releasing the rotation lock of the lower pressure wheel. At this time, the lower pressure wheel can rotate freely, avoiding scratches and indentations on the steel strip surface caused by rigid friction, effectively ensuring the surface quality of the finished steel strip. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile module in this invention; Figure 3 This is a schematic diagram of the support module in this invention; Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle; Figure 5 This is a schematic diagram of the lower support mechanism in this invention; Figure 6 This is a schematic diagram of the edge clamping unit in this invention; Figure 7 This is an assembly diagram of the edge clamping unit in this invention.

[0020] In the diagram: 1. Equipment base; 2. Side support; 3. Support module; 31. Support plate; 32. Central slot; 33. Support base; 34. Support wheel; 4. Moving module; 40. First motor lead screw module; 41. Horizontal moving frame; 42. Horizontal moving electric slide rail; 43. Moving support; 44. Lifting support; 45. Second motor lead screw module; 5. Laser cutting head; 6. Edge clamping unit; 61. Lifting frame; 62. Floating support mechanism; 621. Sliding block; 622. Support spring; 63. Limiting frame; 64. Limiting sleeve; 65. 651. Pressing mechanism; 652. Support frame; 653. Sliding support; 654. Connecting plate; 655. Return spring; 656. Lower pressure wheel; 657. Friction wheel; 658. Friction frame; 659. Connecting belt; 66. Follow-up avoidance mechanism; 661. Arc bracket; 662. Avoidance wheel; 663. Fixed frame; 7. Lower support mechanism; 71. Lower support platform; 72. Lower pressing and lifting mechanism; 721. Inner support; 722. Tilting rod; 723. Connecting rod; 724. Upper pressure wheel; 725. Lower pressure block. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Please refer to Figures 1-7A steel strip laser cutting device includes a base platform 1, with side supports symmetrically arranged on both sides of the top of the base platform 1. A support module 3 is mounted on the base platform 1, positioned between the side supports 2. A movable module 4 is mounted on each side support 2, and a laser cutting head 5 is mounted on the movable module 4. The laser cutting head 5 is prior art and will not be described in detail here. The support module 3 includes a support plate 31 fixed to the base platform 1. Support seats 33 are evenly arranged on both sides of the bottom of the support plate 31. Support wheels 34 for supporting the steel strip are rotatably connected between the support seats 33. An opening is located at the center of the support plate 31. A central slot 32 is provided, and a lower support mechanism 7 is provided on the support plate 31. The lower support mechanism 7 includes a lower support platform 71 slidably connected in the central slot 32. The lower support platform 71 is connected to the side support 2 through a downward lifting mechanism 72. An edge pressing unit 6 is provided on the side support 2. The edge pressing unit 6 includes a lifting frame 61. The lifting frame 61 is connected to the side support 2 through a floating support mechanism 62. A limit frame 63 is slidably connected to the lifting frame 61. A limit sleeve 64 matching the size of the groove at the top of the limit frame 63 is fixed on the laser cutting head 5. Pressing mechanisms 65 are evenly arranged on the lifting frame 61. The limit frame 63 is fixed with a follow-up avoidance mechanism 66 connected to the clamping mechanism 65; the equipment base 1 is used to bear the installation and operation load of the entire equipment; the support module 3 serves as the main bearing for steel strip conveying and cutting, wherein the support plate 31 is the basic mounting plate, the support seat 33 is used to fix the support point, and the support wheel 34 is used to roll and support the steel strip and reduce the conveying resistance; the lower support mechanism 7 is used to support the steel strip below the steel strip cutting station, and the lower lifting mechanism 72 is used to provide mechanical linkage lifting power to achieve the lifting effect of the lower support platform 71; the edge clamping unit 6 is used to press the upper part of the steel strip cutting area. The lifting frame 61 serves as the mounting carrier for the clamping structure, and the floating support mechanism 62 enables the elastic floating of the lifting frame 61. The limiting frame 63, in conjunction with the limiting sleeve 64, achieves trajectory limiting constraint for the laser cutting head 5. The clamping mechanism 65 can clamp and fix the steel strip at multiple points. The follow-up avoidance mechanism 66 is used to automatically avoid the clamping mechanism 65 during the cutting action. During operation, the support module 3 completes the stable transport and support of the steel strip, and the lower support mechanism 7 and the edge clamping unit 6 form a bidirectional clamping of the steel strip cutting area from top to bottom. In conjunction with the moving module 4, the laser cutting head 5 is driven to operate precisely, effectively avoiding deformation and movement of the steel strip during cutting.

[0023] Please see Figures 1-2The moving module 4 includes a transverse frame 41 slidably connected to a side support 2. A transverse electric slide rail 42 is fixed on one side of the side support 2. The transverse frame 41 is fixed to the moving end of the transverse electric slide rail 42. The transverse electric slide rail 42 is prior art and will not be described in detail here. A moving support 43 is slidably connected to the transverse frame 41. A first motor screw module 40 is provided on the transverse frame 41. The moving support 43 is connected to the moving end of the first motor screw module 40. The first motor screw module 40 is prior art and will not be described in detail here. A lifting support 44 is slidably connected to the moving support 43. The laser cutting head 5 is fixed to the lifting support 44. A second motor screw module 45 is provided on the moving support 43. The lowering support 44 is fixed on the moving end of the second motor lead screw module 45. The second motor lead screw module 45 is existing technology and will not be described in detail here. The horizontal sliding rail 42 is used to drive the overall structure to move laterally for alignment. The first motor lead screw module 40 is used to provide horizontal feed power for laser cutting, driving the moving support 43 to slide smoothly. The lifting support 44 is used to fix the laser cutting head 5. The second motor lead screw module 45 is used to drive the lifting support 44 to move vertically, realizing the downward pressing and lifting reset of the laser cutting head 5. During operation, the horizontal sliding rail 42 completes the lateral alignment of the equipment, the first motor lead screw module 40 achieves precise cutting feed, and the second motor lead screw module 45 completes the vertical height adjustment.

[0024] Please see Figure 4 and Figures 6-7 The pressing mechanism 65 includes a support frame 651 evenly fixed on the inner wall of the lifting frame 61. A sliding support 652 is slidably sleeved on the support frame 651. The sliding support 652 and the support frame 651 are connected to each other by a return spring 654. A connecting plate 653 is fixed between the sliding supports 652. A lower pressure wheel 655 and a friction wheel 656 are rotatably connected to the connecting plate 653. A friction frame 657 is fixed on the support frame 651 and abuts against the friction wheel 656. A connecting wheel 658 is fixedly sleeved on both the lower pressure wheel 655 and the friction wheel 656. A connecting belt 659 is tensioned on the connecting wheel 658. The support frame 651 is a sliding... The moving structure provides a fixed base, and the return spring 654 provides elastic return thrust. The connecting wheel 658 and the connecting belt 659 are used to realize synchronous transmission between the pressure wheel 655 and the friction wheel 656. During the cutting process, the pressure wheel 655 is used to directly press the surface of the steel strip, and the friction wheel 656 and the friction frame 657 cooperate to generate frictional resistance and lock the wheel. When the equipment is in standby pressing mode, the return spring 654 pushes the sliding support 652 to fit and position, and the friction structure locks the pressure wheel 655 to prevent the steel strip from moving. During the cutting operation, the sliding support 652 can slide laterally to unlock, and the pressure wheel 655 can roll to fit the steel strip to avoid scratching the plate surface.

[0025] Please see Figure 3 and Figures 6-7The follow-up avoidance mechanism 66 includes an arc-shaped bracket 661 symmetrically fixed to the top of the limiting frame 63. An avoidance wheel 662 abuts against the side wall of the arc-shaped bracket 661. The avoidance wheel 662 is rotatably connected to the fixed frame 663, and the fixed frame 663 is fixed to the sliding support 652. The arc-shaped bracket 661 can move synchronously with the limiting frame 63 to output lateral thrust to trigger the avoidance action. The avoidance wheel 662 is used to reduce contact friction and ensure smooth pushing and sliding. The fixed frame 663 is used to fix and support the avoidance wheel 662. During operation, when the laser cutting head 5 feeds horizontally, it drives the arc-shaped bracket 661 to push the avoidance wheel 662, driving the sliding support 652 to shift laterally, so that the pressure wheel 655 automatically avoids the laser cutting path. After cutting, the avoidance wheel 662 and the arc-shaped bracket 661 disengage, and the pressing mechanism 65 automatically resets and locks under the action of the return spring 654.

[0026] Please see Figures 4-6 The floating support mechanism 62 includes sliding blocks 621 symmetrically fixed on the lifting frame 61. A sliding groove is provided on the side wall of the side support 2 for the sliding blocks 621 to slide. The sliding blocks 621 are connected to the side support 2 through a support spring 622 fixed at the top. The sliding blocks 621 are used to drive the lifting frame 61 to slide smoothly along the sliding groove. The sliding groove can limit the sliding trajectory and ensure the stability of the movement. The support spring 622 is used to provide elastic support force and automatic reset force. In the non-working state, the support spring 622 pulls the sliding blocks 621 to move upward, so that the lifting frame 61 is kept in a high position for standby. When cutting and pressing down, the downward movement of the sliding blocks 621 will stretch the support spring 622.

[0027] Please see Figures 4-6 The downward lifting mechanism 72 includes an inner support 721 fixed to the side support 2. A flipping rod 722 is symmetrically rotatably connected to the inner support 721. A connecting rod 723 is slidably connected to an elongated groove at one end of the flipping rod 722. The connecting rod 723 is symmetrically fixed to the lower support platform 71. An upper pressure wheel 724 is fixed to the other end of the flipping rod 722. A lower pressure block 725 is fixed to the bottom of the sliding block 621 and is located above the upper pressure wheel 724. The inner support 721 serves as the fulcrum for the rotation of the flipping rod 722. The flipping rod 722 is used to realize lever-type force transmission, and the long strip-shaped groove at the end is used to adapt to displacement difference and ensure smooth transmission. The connecting rod 723 is used to pull the lower support platform 71 to lift and lower. The upper pressure wheel 724 is used to receive the downward pressure of the lower pressure block 725. The lower pressure block 725 is used to output pressure as the lifting frame 61 moves down. During operation, the lower pressure block 725 presses down on the upper pressure wheel 724, driving the flipping rod 722 to rotate and swing. Through the connecting rod 723, it drives the lower support platform 71 to move up and support the cut part of the steel strip from below.

[0028] It should be noted that, in the use of this steel strip laser cutting equipment, the long steel strip to be processed is first continuously conveyed to the top of the equipment base 1 through the external feeding mechanism. It is then stably supported and conveyed by the support seat 33 and support wheel 34 on the support module 3, so that the steel strip passes smoothly over the support plate 31. The central groove 32 in the center of the support plate 31 corresponds to the steel strip cutting station, and sufficient clearance is reserved for the cutting operation and the bottom support lifting. When the equipment is not started, the support spring 622 of the floating support mechanism 62 pulls the sliding block 621 to a high position, raising the lifting frame 61 as a whole, so that the edge pressing unit 6 and the lower support mechanism 7 are both in a loosened high-position standby state, and the entire equipment is in a waiting state. After the steel strip is conveyed to the preset cutting position, the transverse electric slide rail 42 drives the transverse frame 41 to complete the transverse positioning. In conjunction with the first motor screw module 40, it drives the moving support 43 and the lifting support 44 to move precisely, so that the laser cutting head 5 moves to the top of the limiting frame 63. Meanwhile, the second motor screw module 45 drives the lifting support 44 to move vertically downward, causing the laser cutting head 5 to press down as a whole. This causes the limiting sleeve 64 at the bottom of the laser cutting head 5 to be nested and locked inside the groove at the top of the limiting frame 63, completing the mechanical alignment and limiting of the laser cutting head 5 and the edge pressing unit 6. After the limiting is engaged, the laser cutting head 5 can only be fed horizontally along the direction of the central slot 32, effectively constraining the cutting trajectory and ensuring the cutting size accuracy of the steel strip. As the laser cutting head 5 continues to feed downwards, it drives the limiting frame 63 and the lifting frame 61 to press down synchronously, stretching the support spring 622 of the floating support mechanism 62, causing the sliding block 621 to slide down along the slide groove of the side support 2. As the sliding block 621 moves down, it drives the bottom pressing block 725 to press down the upper pressing wheel 724, driving the flipping rod 722 to rotate and swing around the inner support 721. The flipping rod 722 pulls the connecting rod 723 vertically upwards through the long strip-shaped slide groove at the end, thereby driving the lower support platform 71 to slide upwards along the central slot 32 until the lower support platform 71 is tightly against the lower surface of the steel strip cutting position, completing the rigid support of the bottom of the steel strip. While the lower support platform 71 presses against the lower surface of the steel strip, the lifting frame 61 presses down and drives each pressing mechanism 65 to move down synchronously, so that the lower pressing wheel 655 presses tightly against the upper surface of the steel strip cutting position, forming a two-way clamping structure with the bottom lower support platform 71, firmly fixing the steel strip cutting area, and effectively suppressing processing defects such as edge warping, deformation, and arching of the steel strip during the laser high temperature cutting process. Before the cutting is executed, the avoidance wheel 662 of the follow-up avoidance mechanism 66 at the non-cutting part does not contact the arc bracket 661. The return spring 654 pushes the sliding support 652 to make the friction wheel 656 tightly abut against the friction frame 657. The friction wheel 656 is locked by friction force, and the rotation function of the pressure wheel 655 is locked by the transmission action of the connecting wheel 658 and the connecting belt 659, so that the pressure wheel 655 is stationary and locked, which effectively prevents the problem of scrambling and slipping due to stress release at the moment of steel strip cutting, and further improves the cutting accuracy. When the first motor lead screw module 40 drives the laser cutting head 5 to feed horizontally, the laser cutting head 5 drives the limiting frame 63 to move synchronously through the limiting sleeve 64. The arc-shaped bracket 661 at the top of the limiting frame 63 gradually abuts against and pushes the avoidance wheel 662 with the displacement, so that the avoidance wheel 662 drives the sliding support 652 to slide outward against the elastic force of the return spring 654 through the fixed frame 663. During the sliding process, the sliding support 652 drives the lower pressure wheel 655 to shift laterally, automatically avoiding the laser cutting trajectory and avoiding interference with the cutting operation. At the same time, the friction wheel 656 disengages from the friction frame 657, releasing the rotation lock state of the lower pressure wheel 655, so that the lower pressure wheel 655 can roll freely and fit against the surface of the steel strip, rolling synchronously with the cutting feed, avoiding scratches on the steel strip surface caused by rigid friction.

[0029] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A steel strip laser cutting device, comprising a base platform (1), characterized in that: The equipment base (1) is symmetrically provided with side supports (2) on both sides of the top. A support module (3) is provided on the equipment base (1) between the side supports (2). A moving module (4) is provided on the side supports (2). A laser cutting head (5) is installed on the moving module (4). The support module (3) includes a support plate (31) fixed on the equipment base (1). A central slot (32) is provided at the center of the support plate (31). A lower support mechanism (7) is provided on the support plate (31). The lower support mechanism (7) includes a lower support platform (71) slidably connected in the central slot (32). 1) Connected to the side support (2) by a downward lifting mechanism (72); the side support (2) is provided with an edge pressing unit (6), the edge pressing unit (6) includes a lifting frame (61), the lifting frame (61) is connected to the side support (2) by a floating support mechanism (62), a limit frame (63) is slidably connected to the lifting frame (61), a limit sleeve (64) matching the size of the groove at the top of the limit frame (63) is fixed on the laser cutting head (5), a pressing mechanism (65) is evenly provided on the lifting frame (61), and a follow-up avoidance mechanism (66) connected to the pressing mechanism (65) is fixed on the limit frame (63).

2. The steel strip laser cutting equipment according to claim 1, characterized in that: The pressing mechanism (65) includes a support frame (651) evenly fixed on the inner wall of the lifting frame (61), and a sliding support (652) is slidably sleeved on the support frame (651). The sliding support (652) and the support frame (651) are connected to each other by a return spring (654).

3. The steel strip laser cutting equipment according to claim 2, characterized in that: A connecting plate (653) is fixed between the sliding supports (652). A pressure wheel (655) and a friction wheel (656) are rotatably connected on the connecting plate (653). A friction frame (657) is fixed on the support frame (651) and abuts against the friction wheel (656).

4. The steel strip laser cutting equipment according to claim 3, characterized in that: A connecting wheel (658) is fixedly sleeved on both the pressure wheel (655) and the friction wheel (656), and a connecting belt (659) is tensioned on the connecting wheel (658).

5. A steel strip laser cutting device according to claim 2, characterized in that: The follow-up avoidance mechanism (66) includes an arc-shaped bracket (661) symmetrically fixed on the top of the limit frame (63). An avoidance wheel (662) is abutted on the side wall of the arc-shaped bracket (661). The avoidance wheel (662) is rotatably connected to the fixed frame (663), and the fixed frame (663) is fixed on the sliding support (652).

6. The steel strip laser cutting equipment according to claim 1, characterized in that: The floating support mechanism (62) includes sliding blocks (621) symmetrically fixed on the lifting frame (61). The side wall of the side support (2) is provided with a sliding groove for the sliding block (621) to slide. The sliding block (621) is connected to the side support (2) through a support spring (622) fixed at the top.

7. A steel strip laser cutting device according to claim 6, characterized in that: The pressing and lifting mechanism (72) includes an inner support (721) fixed on the side support (2), a flipping rod (722) is symmetrically rotatably connected to the inner support (721), and a connecting rod (723) is slidably connected in a long strip groove opened at one end of the flipping rod (722), and the connecting rod (723) is symmetrically fixed on the lower support platform (71).

8. The steel strip laser cutting equipment according to claim 7, characterized in that: The other end of the flipping rod (722) is fixed with an upper pressure wheel (724), and the bottom of the sliding block (621) is fixed with a lower pressure block (725) located above the upper pressure wheel (724).

9. A steel strip laser cutting device according to claim 1, characterized in that: Support seats (33) are evenly arranged on both sides of the bottom of the support plate (31), and support wheels (34) for supporting the steel belt are rotatably connected between the support seats (33).

10. A steel strip laser cutting device according to claim 1, characterized in that: The moving module (4) includes a transverse frame (41) slidably connected to a side support (2). A transverse electric slide rail (42) is fixed on one side of the side support (2). The transverse frame (41) is fixed on the moving end of the transverse electric slide rail (42). A moving support (43) is slidably connected to the transverse frame (41). A first motor screw module (40) is provided on the transverse frame (41). The moving support (43) is connected to the moving end of the first motor screw module (40). A lifting support (44) is slidably connected to the moving support (43). A laser cutting head (5) is fixed on the lifting support (44). A second motor screw module (45) is provided on the moving support (43). The lifting support (44) is fixed on the moving end of the second motor screw module (45).

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