A steel strip laser cutting apparatus

Abstract

The present application relates to a kind of steel band laser cutting equipment, belong to laser cutting equipment technical field, including first rack, second rack, conveying roller, laser cutting assembly, clamping assembly, unwinding assembly and steel roll surface dirt cleaning assembly, two racks are formed by welding using high-strength steel material, provide stable installation base for whole machine.Unwinding assembly is driven by servo motor screw and gear transmission, can be self-adapting adjustment unwinding roller position and unwinding speed, adapt different specifications steel roll smooth feeding;Dirt cleaning assembly uses upper and lower double-sided cleaning structure, can remove the oil dirt impurities on the surface of steel band, the equipment realizes steel band unwinding, conveying, double-sided oil removal, accurate clamping and laser cutting whole process automation operation, solve the existing equipment rack poor rigidity, unwinding weak adaptability, cleaning is not thorough, cutting is easy to deviate, the problem of low degree of automation, cutting precision is high, cut flat, strong universality, suitable for steel band batch fixed-length cutting processing use.

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] As a basic raw material for industries such as hardware processing, steel structure manufacturing, and pipe production, steel strip often needs to be laser-cut to a fixed length according to production specifications. Currently, there are many steel strip laser cutting equipment on the market that can realize the integrated operation of steel strip unwinding, conveying and laser cutting, which improves the automation level of steel strip cutting processing to a certain extent.

[0003] Existing equipment generally lacks a dedicated cleaning mechanism for oil stains on the surface of steel strips. Relying solely on simple manual wiping or one-sided simple cleaning can only remove surface dust and cannot completely remove oil stains and impurities that adhere to the steel strips during rolling and storage. Residual oil stains not only cause slag buildup and cutting failure during laser cutting, but also adhere to the surface of the laser cutting head, accelerating lens wear and aging, and increasing equipment maintenance costs and downtime for repairs. 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 first frame, a second frame fixedly mounted on the side wall of the first frame, an unwinding assembly on the side wall of the first frame, a steel coil on the unwinding assembly, and mounting plates fixedly mounted on the top front and top rear sides of the first frame. The device is characterized in that: the first frame is provided with a steel coil surface oil stain cleaning assembly that cooperates with the unwinding assembly; the steel coil surface oil stain cleaning assembly includes a mounting cover fixedly mounted on the top of the two mounting plates; and take-up rollers are rotatably mounted on both sides of the inner side wall of the mounting cover. The second unwinding roller and the take-up roller are both fitted with oil-absorbing cotton paper. The bottom of the oil-absorbing cotton paper is attached to a movable roller that is movably mounted above the first frame. The lower surface of the oil-absorbing cotton paper is repeatedly wiped on the upper surface of the steel coil by the movable roller. The inner side wall of the first frame is provided with a cleaning sponge that slides against the lower surface of the steel coil. The lower sides of the take-up roller and the second unwinding roller are provided with pressure rollers that move synchronously with the movable roller and cooperate to level the steel coil.

[0006] As a further optimization of the present invention, an L-shaped mounting plate is fixedly mounted on the side wall of the mounting cover, a third servo motor is fixedly mounted on the top of the L-shaped mounting plate, the output end of the third servo motor rotatably penetrates the side wall of the L-shaped mounting plate and is fixedly fitted with a rotating disk, a connecting rod is rotatably connected to the side wall of the rotating disk at an eccentric position, the other end of the connecting rod is rotatably connected to a reciprocating slide rod, a second guide rail is fixedly mounted on the top of the mounting cover, a first slider is slidably connected to the inner side wall of the second guide rail, the side wall of the first slider is fixedly connected to the other end of the reciprocating slide rod, a hydraulic cylinder is fixedly mounted on the top of the first slider, limiting slide rods that slide through the top two sides of the mounting cover are slidably connected to the bottom two sides of the bottom two sides of the first slider, the output end of the hydraulic cylinder movably penetrates the bottom of the mounting cover, and a connecting plate that is rotatably connected to the movable roller is fixedly connected to the output end of the hydraulic cylinder, and the bottoms of the two limiting slide rods are fixedly mounted on the top of the connecting plate.

[0007] As a further optimization of the present invention, a sliding plate is fixedly installed on the bottom front side and bottom rear side of the connecting plate, and the two pressure rollers are rotatably connected between the two sliding plates. A limit plate is fixedly connected to the front side wall and the rear side wall of the two sliding plates.

[0008] As a further optimization of the present invention, a U-shaped seat is fixedly installed below the two limiting plates. The two side walls of the U-shaped seat are fixedly connected to the corresponding limiting plates by locking bolts. An installation shell is fixedly installed on the top of the U-shaped seat, and the cleaning sponge is installed inside the installation shell.

[0009] As a further optimization of the present invention, the top of the first frame is provided with a laser cutting assembly for cutting steel coils, and the rear side wall of the first frame is provided with a clamping assembly that cooperates with the laser cutting assembly and the unwinding assembly.

[0010] As a further optimization of the present invention, the laser cutting assembly includes a first guide rail fixedly installed on the top of a first frame and a second frame, an electric slide block slidably connected to the outer side wall of the first guide rail, and a laser cutting head installed at the bottom of the electric slide block.

[0011] As a further optimization of the present invention, the unwinding assembly includes a mounting base fixedly installed on the side wall of the first frame, a lead screw rotatably connected to the inner side wall of the mounting base, an adjusting slide block slidably connected above the mounting base and threadedly sleeved on the outer side wall of the lead screw, a fixed base fixedly installed on the top of the mounting base, a first unwinding roller rotatably connected between the fixed base and the adjusting slide block, the steel coil being wound on the outer side wall of the first unwinding roller, and a second servo motor for driving the lead screw to rotate fixedly installed on the inner side wall of the second frame.

[0012] As a further optimization of the present invention, a transmission gear is fixedly connected to one end of the first unwinding roller, a drive gear that meshes with the transmission gear is rotatably connected to the side wall of the adjusting slide, and a first servo motor that drives the drive gear to rotate is fixedly installed on the side wall of the adjusting slide.

[0013] As a further optimization of the present invention, several conveying rollers that cooperate with the steel coil and the oil stain cleaning component on the surface of the steel coil are rotatably connected to both sides of the inner sidewall of the first frame, and the pressure roller, the movable roller and the cleaning sponge are movably connected between the two sets of conveying rollers.

[0014] As a further optimization of the present invention, the clamping assembly includes a first cylinder fixedly installed on the side wall of the first frame, the output end of the first cylinder slidingly through the side wall of the first frame and fixedly connected to a U-shaped block, a second cylinder fixedly installed on the top of the U-shaped block, and a clamping plate sliding inside the U-shaped block fixedly installed on the output end of the second cylinder, the clamping plate and the U-shaped block clamping one end of the steel coil.

[0015] The beneficial effects of this invention are as follows: 1. This invention features a steel coil surface oil cleaning component, employing an upper oil-absorbing cotton paper and a lower cleaning sponge for simultaneous cleaning on both sides. A third servo motor and a linkage slider mechanism drive the oil-absorbing cotton paper to reciprocate, significantly increasing the oil absorption coverage. Simultaneously, a hydraulic cylinder adaptively adjusts the height of the movable roller and pressure roller to accommodate steel strips of different thicknesses, ensuring a tight fit between the oil-absorbing cotton paper and the steel strip surface. Furthermore, a fourth servo motor drives the take-up roller and the second unwind roller to automatically rewind and replace the oil-absorbing cotton paper, automatically rewinding dirty consumables and automatically releasing new material. This eliminates the need for frequent manual replacement of cleaning consumables, providing a long-lasting and stable cleaning effect, thus ensuring high-quality laser cutting. This design effectively extends the lifespan of the laser cutting head and reduces equipment maintenance costs. The pressure roller, made of rubber, possesses excellent elasticity and wear resistance. It is rotatably connected to the corresponding component and adheres to the surface of the steel coil to press the steel strip, ensuring smooth conveying. Simultaneously, its reciprocating movement levels the steel strip and helps the oil-absorbing paper to make close contact with the steel coil, improving the cleaning effect. Furthermore, the movable roller presses the oil-absorbing paper down, ensuring that its lower surface adheres tightly to the upper surface of the steel coil. The rewinding direction of the oil-absorbing paper is opposite to the conveying direction of the steel coil, which improves the wiping efficiency of the upper surface of the steel coil, thereby enhancing the cleaning efficiency.

[0016] 2. The device of this invention is equipped with an independent clamping assembly. The first cylinder adjusts the front and rear positions, and the second cylinder drives the anti-slip clamping plate to press vertically. At the moment of laser cutting, the end of the steel strip is rigidly clamped and fixed. Compared with no clamping or simple spring clamping structure, this clamping method has uniform clamping force and firm positioning. It can completely avoid the displacement and shaking of the steel strip caused by laser thermal stress and conveying inertia during the cutting process, ensuring that the cutting size of each steel strip is uniform and the cut is neat. At the same time, it can prevent the steel strip from falling and deforming freely after cutting, making it easier to collect the finished products neatly and greatly improving the product processing qualification rate.

[0017] 3. The unwinding assembly of this invention adopts a servo-driven adjustment structure with a lead screw and an adjusting slide. The lead screw is precisely driven by a second servo motor, which can flexibly adjust the spacing and position of the unwinding rollers and adapt to steel coils with different inner diameters and widths. At the same time, the speed of the unwinding rollers is precisely controlled by the first servo motor through gear meshing, which can match the rhythm of subsequent steel strip conveying, cleaning and laser cutting in real time, and precisely control the unwinding tension and feeding speed to avoid the steel strip from becoming loose, stretched, wrinkled or deviating. It achieves uniform and stable automatic unwinding, and its versatility and feeding consistency are far superior to the traditional fixed shaft spacing and manually adjustable unwinding structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall top structure of the present invention; Figure 2 This is a partial axonometric structural diagram of the present invention; Figure 3 This is a frontal axial side view of the overall structure of the present invention; Figure 4 This is a partial top-section structural diagram of the present invention; Figure 5 This is a partial side-section structural diagram of the present invention; Figure 6 This is a first partial structural schematic diagram of the oil stain cleaning component for the steel coil surface of the present invention; Figure 7 This is a schematic diagram of the second partial structure of the oil stain cleaning component for the steel coil surface of the present invention; Figure 8 This is a partial top view of the steel coil surface oil stain cleaning component of the present invention; Figure 9 This is a schematic diagram of the third partial structure of the oil stain cleaning component for the steel coil surface of the present invention; Figure 10 This is a schematic diagram of the assembly structure of the third servo motor driving the first slider of the present invention; Figure 11 This is a partial side view of the structure of the present invention; Figure 12 This is a schematic diagram of the structure of the laser cutting component of the present invention; Figure 13 This is a schematic diagram of the clamping component of the present invention.

[0019] In the diagram: 1. First frame; 2. Conveyor roller; 3. Second frame; 4. Laser cutting assembly; 401. First guide rail; 402. Electric slide; 403. Laser cutting head; 5. Mounting plate; 6. Steel coil; 7. Unwinding assembly; 701. Mounting seat; 702. Lead screw; 703. Adjusting slide; 704. First servo motor; 705. Transmission gear; 706. First unwinding roller; 707. Drive gear; 708. Fixed seat; 709. Second servo motor; 8. Clamping assembly; 801. First cylinder; 802. U-block; 803. Second cylinder; 804. Clamping plate; 9. Steel coil surface. Oil stain cleaning components; 901, mounting cover; 902, second guide rail; 903, hydraulic cylinder; 904, locking bolt; 905, L-shaped mounting plate; 906, third servo motor; 907, rotating disk; 908, reciprocating slide bar; 909, first slider; 910, connecting rod; 911, oil-absorbing cotton paper; 912, U-shaped seat; 913, mounting shell; 914, cleaning sponge; 915, movable roller; 916, sliding plate; 917, limiting plate; 918, limiting slide bar; 919, pressure roller; 920, connecting plate; 921, fourth servo motor; 922, take-up roller; 923, second unwind roller. Detailed Implementation

[0020] 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.

[0021] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 12 and Figure 13As shown, a steel strip laser cutting device comprises a first frame 1 and a second frame 3. Both the first frame 1 and the second frame 3 are welded from high-strength steel, forming a frame structure with high rigidity and good stability, providing a stable installation foundation for all functional components of the equipment. The second frame 3 is fixedly installed on the side wall of the first frame 1, and the two are connected by bolts, ensuring a firm connection and precise positioning, forming a complete main body of the equipment. This ensures that the equipment does not shake or shift during steel strip processing, guaranteeing processing accuracy. The equipment is functionally divided into an unwinding assembly 7, a steel coil surface oil cleaning assembly 9, a laser cutting assembly 4, a clamping assembly 8, and a conveying roller 2. All components work together, strictly following the preset working principle, to achieve fully automated operation of the steel strip from unwinding, cleaning, leveling, conveying, clamping to laser cutting. The installation position, connection method, and structural parameters of all components strictly adhere to the design requirements, ensuring stable equipment operation and achieving the required processing results.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 11 As shown, the side wall of the first frame 1 is equipped with an unwinding assembly 7. The unwinding assembly 7 is the core component for unwinding the steel coil 6. It can precisely control the unwinding speed and tension of the steel coil 6, ensuring smooth conveying of the steel strip and providing a guarantee for subsequent cleaning, leveling, and cutting operations. The unwinding assembly 7 includes a mounting base 701 fixedly installed on the side wall of the first frame 1. The mounting base 701 is made of welded metal sheet and has a rectangular structure. It is fixed to the side wall of the first frame 1 with bolts, ensuring a firm installation and precise positioning. It is used to install components such as the lead screw 702 and the adjusting slide 703, providing stable installation support for each component. The lead screw 702 is rotatably connected to the inner side wall of the mounting base 701. The lead screw 702 is a high-precision ball screw, which has the advantages of precise positioning and smooth transmission. Both ends are rotatably connected to the mounting base 701 through bearings, ensuring smooth rotation without jamming. It can drive the adjusting slide 703 to slide along the mounting base 701, realizing the position adjustment of the first unwinding roller 706. The outer wall of the lead screw 702 is threaded with an adjusting slide 703 that is slidably connected to the mounting base 701. The adjusting slide 703 has a rectangular block structure, with its bottom slidably fitting against the top of the mounting base 701. Its inner wall is provided with an internal thread that matches the lead screw 702. When the lead screw 702 rotates, the adjusting slide 703 slides smoothly along the top of the mounting base 701, thereby adjusting the position of the first unwinding roller 706 to accommodate steel coils 6 of different sizes.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 11As shown, a fixed seat 708 is fixedly installed on the top of the mounting seat 701. The fixed seat 708 is made of metal block and is fixed to one end of the top of the mounting seat 701 by bolts. It is precisely positioned and has a solid structure. It is set opposite to the adjusting slide 703 and is used to cooperate with the adjusting slide 703 to install the first unwinding roller 706. A first unwinding roller 706 is rotatably connected between the fixed base 708 and the adjusting slide 703. The first unwinding roller 706 is made of high-strength metal roller body, and its two ends are rotatably connected to the fixed base 708 and the adjusting slide 703 respectively through bearings. It rotates smoothly and has a strong load-bearing capacity. The steel coil 6 is wound around the outer wall of the first unwinding roller 706. The unwinding operation of the steel coil 6 is realized by the rotation of the first unwinding roller 706. A second servo motor 709 that drives the lead screw 702 to rotate is fixedly installed on the inner wall of the second frame 3. The second servo motor 709 is a high-precision servo drive motor with the advantages of adjustable speed and accurate positioning. It is fixed to the inner wall of the second frame 3 by bolts. The output end is fixedly connected to one end of the lead screw 702 through a coupling to ensure smooth power transmission and no power loss. When the second servo motor 709 starts, it drives the lead screw 702 to rotate forward or reverse, which in turn drives the adjusting slide 703 to slide along the mounting base 701, adjusting the position of the first unwinding roller 706 to ensure that the steel coil 6 is accurately positioned and aligned with the subsequent conveying roller 2, the steel coil surface oil stain cleaning component 9, etc., to avoid unwinding deviation.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 11 As shown, a transmission gear 705 is fixedly connected to one end of the first unwinding roller 706. The transmission gear 705 is a high-strength gear and is interference-fitted with the first unwinding roller 706 to ensure synchronous rotation without relative slippage. It is used to transmit power and drive the first unwinding roller 706 to rotate to achieve unwinding. A drive gear 707 that meshes with the transmission gear 705 is rotatably connected to the side wall of the adjusting slide 703. The drive gear 707 and the transmission gear 705 are sized to match and mesh precisely, enabling the power of the first servo motor 704 to be transmitted to the transmission gear 705, thereby driving the first unwinding roller 706 to rotate. A first servo motor 704 that drives the drive gear 707 to rotate is fixedly installed on the side wall of the adjusting slide 703. The first servo motor 704 is fixed to the side wall of the adjusting slide 703 by bolts, and its output end is fixedly connected to the drive gear 707. After starting, it drives the drive gear 707 to rotate, and drives the transmission gear 705 and the first unwinding roller 706 to rotate through gear meshing. It precisely controls the speed of the first unwinding roller 706, thereby controlling the unwinding speed of the steel coil 6, and ensuring coordinated operation with the subsequent cleaning, leveling and cutting rhythm.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, several conveyor rollers 2 are rotatably connected to both sides of the inner wall of the first frame 1, which cooperate with the steel coil 6 and the steel coil surface oil stain cleaning component 9. The conveyor rollers 2 are made of high-strength wear-resistant metal rollers, and their two ends are rotatably connected to the inner wall of the first frame 1 through bearings, so that the rotation is smooth and without jamming. The several conveyor rollers 2 are evenly distributed on the inner side of the first frame 1 and arranged in a horizontal shape to support and convey the steel strip, so as to ensure that the steel strip moves smoothly without deviation or wrinkling during the unwinding, cleaning, leveling and cutting processes. The top of the conveyor roller 2 is in contact with the surface of the steel coil 6. After the steel coil 6 is unwound, the steel strip is smoothly conveyed along the top of the conveyor roller 2, and passes through the steel coil surface oil stain cleaning component 9, the clamping component 8 and the laser cutting component 4 in sequence to complete the cleaning, leveling, clamping and cutting operations. The pressure roller 919, the movable roller 915, and the cleaning sponge 914 are movably connected between the two sets of conveyor rollers 2, ensuring that the cleaning and leveling operations are completed between the two sets of conveyor rollers 2 without affecting the normal conveying of the steel belt, while ensuring the cleaning and leveling effect.

[0026] like Figure 1 - Figure 12 As shown, the steel coil surface oil cleaning component 9 is one of the core functional components of this equipment. It is used to remove oil and impurities from the surface of the steel coil 6, and works with the pressure roller 919 to level the steel strip, preventing oil from affecting the laser cutting effect, preventing wrinkles in the steel strip from causing cutting deviation, ensuring a flat and burr-free cut surface, and protecting the laser cutting head 403, extending its service life. Mounting plates 5 are fixedly installed on both sides of the top of the first frame 1. The mounting plates 5 are made of metal sheet, arranged vertically, and fixed to the top of the first frame 1 with bolts. They are symmetrically distributed, structurally robust, and used to install the various components of the steel coil surface oil cleaning component 9, providing stable installation support.

[0027] like Figure 1 - Figure 10 As shown, the steel coil surface oil stain cleaning component 9 includes a mounting cover 901 fixedly installed on the top of two mounting plates 5. The mounting cover 901 is made of welded metal sheet, has a rectangular cover structure, an open bottom, and is fixedly installed on the top of the two mounting plates 5, providing good sealing performance. It is used to accommodate components such as the take-up roller 922, the second unwind roller 923, and the oil-absorbing paper 911, preventing oil stains from splashing during the cleaning process and protecting the internal components. The take-up roller 922 and the second unwind roller 923 are rotatably mounted on both sides of the inner wall of the mounting cover 901. Both the take-up roller 922 and the second unwind roller 923 are made of metal rollers, and their ends are rotatably connected to the inner wall of the mounting cover 901 through detachable bearings. The rotation is smooth and the load-bearing capacity is strong. The two are arranged in parallel, and the spacing is adapted to the length of the oil-absorbing paper 911. Both the take-up roller 922 and the second unwind roller 923 are detachable, which facilitates the replacement of new oil-absorbing paper 911. The operation is convenient and ensures that the cleaning effect always meets the standard.

[0028] like Figure 3 and Figure 4 As shown, a fourth servo motor 921 for driving the take-up roller 922 is fixedly installed on the side wall of the mounting cover 901. The fourth servo motor 921 is a high-precision servo drive motor, which is fixed to the side wall of the mounting cover 901 by bolts. The output end is fixedly connected to one end of the take-up roller 922 through a coupling. After starting, it drives the take-up roller 922 to rotate, which in turn drives the oil-absorbing cotton paper 911 to move, realizing the recycling of the oil-absorbing cotton paper 911. When the oil-absorbing cotton paper 911 absorbs oil stains to a certain extent, the take-up roller 922 and the second unwinding roller 923 can be disassembled, new oil-absorbing cotton paper 911 can be replaced, and then reinstalled and fixed to ensure stable cleaning effect. At the same time, the oil-absorbing cotton paper 911 is pressed down by the movable roller 915 so that the lower surface of the oil-absorbing cotton paper 911 can be closely attached to the upper surface of the steel coil 6, and the winding direction of the oil-absorbing cotton paper 911 is opposite to the conveying direction of the steel coil 6, which can improve the wiping efficiency of the upper surface of the steel coil 6 and thus improve the cleaning efficiency of the steel coil.

[0029] like Figure 6 - Figure 8 As shown, oil-absorbing cotton paper 911 is fitted onto both the second unwinding roller 923 and the take-up roller 922. The oil-absorbing cotton paper 911 is made of highly absorbent and wear-resistant cotton material, and has a strip-like structure. It is tightly fitted onto the outside of the second unwinding roller 923 and the take-up roller 922, and can move with the rotation of the two rollers to absorb oil stains on the upper surface of the steel coil 6. A movable roller 915, movably mounted above the first frame 1, is attached to the bottom of the oil-absorbing cotton paper 911. The movable roller 915 is made of metal and rotates flexibly. It is used to tightly press the oil-absorbing cotton paper 911 onto the upper surface of the steel coil 6, ensuring full contact between the oil-absorbing cotton paper 911 and the steel coil 6. Simultaneously, driven by power, the oil-absorbing cotton paper 911 reciprocates to wipe the upper surface of the steel coil 6, improving the oil absorption effect. The lower surface of the oil-absorbing cotton paper 911 is repeatedly wiped against the upper surface of the steel coil 6 by the movable roller 915, achieving thorough removal of oil stains from the upper surface of the steel coil 6.

[0030] like Figure 6 - Figure 10As shown, the inner wall of the first frame 1 is provided with a cleaning sponge 914 that slides against the lower surface of the steel coil 6. The cleaning sponge 914 is made of highly elastic and highly absorbent sponge, which is in close contact with the lower surface of the steel coil 6 and works in conjunction with the oil-absorbing paper 911 to clean the steel coil 6 from both the top and bottom, further improving the cleaning effect and ensuring that there is no residual oil or impurities on the surface of the steel strip. The take-up roller 922 and the second unwinding roller 923 are both provided with pressure rollers 919 on their lower sides, which move synchronously with the movable roller 915 and cooperate in leveling the steel coil 6. The pressure rollers 919 are made of rubber and have good elasticity and wear resistance. They are rotatably connected to the corresponding components and are in contact with the surface of the steel coil 6. On the one hand, they move synchronously with the movable roller 915, and on the other hand, they perform leveling operations on the steel coil 6, eliminating wrinkles on the surface of the steel strip, ensuring that the steel strip is transported flat, providing a flat processing surface for subsequent laser cutting, and avoiding cutting deviation caused by wrinkles.

[0031] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 10 and Figure 11As shown, an L-shaped mounting plate 905 is fixedly installed on the side wall of the mounting cover 901. The L-shaped mounting plate 905 is made of bent metal sheet and is fixed to the side wall of the mounting cover 901 by bolts. It has a solid structure and precise positioning. It is used to install components such as the third servo motor 906 and provides stable installation support for them. A third servo motor 906 is fixedly mounted on the top of the L-shaped mounting plate 905. The third servo motor 906 is a high-precision servo drive motor with the advantages of adjustable speed and stable operation. It is the core power component that drives the movable roller 915 to reciprocate. The output end rotates through the side wall of the L-shaped mounting plate 905 and is fixedly fitted with a rotating disk 907. The rotating disk 907 and the output end of the third servo motor 906 are interference-fitted to ensure that the two rotate synchronously without relative slippage. A connecting rod 910 is rotatably connected to the eccentric part of the side wall of the rotating disk 907. One end of the connecting rod 910 is hinged to the edge of the side wall of the rotating disk 907 through a hinge shaft, and the other end is rotatably connected to a reciprocating slide rod 908. The connecting rod 910 is used to transmit power, converting the rotational motion of the rotating disk 907 into the linear reciprocating motion of the reciprocating slide rod 908, thereby driving the movable roller 915 to reciprocate. A second guide rail 902 is fixedly installed on the top of the mounting cover 901. The second guide rail 902 is made of high-strength metal and is arranged horizontally. It is fixed to the top of the mounting cover 901 by bolts and is used to provide sliding guidance for the first slider 909, ensuring that the first slider 909 can slide smoothly along the second guide rail 902 without jamming or deviation, thereby ensuring the smooth reciprocating movement of the movable roller 915. The first slider 909 is slidably connected to the inner wall of the second guide rail 902. The structure of the first slider 909 is adapted to the second guide rail 902 and slides smoothly. The side wall of the first slider 909 is fixedly connected to the other end of the reciprocating slide rod 908. When the reciprocating slide rod 908 makes linear reciprocating motion, it drives the first slider 909 to make linear reciprocating motion synchronously along the second guide rail 902, thereby driving the movable roller 915, pressure roller 919 and cleaning sponge 914 to move synchronously back and forth. A hydraulic cylinder 903 is fixedly installed on the top of the first slider 909. The hydraulic cylinder 903 is a small pneumatic cylinder with the advantages of adjustable stroke and rapid action. It is the core component for controlling the downward pressing of the oil-absorbing cotton paper 914 to adhere to the steel roll 6. It is fixed to the top of the first slider 909 by bolts, and the output end moves through the bottom of the mounting cover 901 and extends into the interior of the mounting cover 901.

[0032] like Figure 6 - Figure 10As shown, the bottom sides of the first slider 909 are slidably penetrated by limit slide rods 918. The limit recesses 918 are symmetrically distributed with a metal block structure, used to limit and guide the first slider 909, ensuring that the output end of the hydraulic cylinder 903 moves smoothly up and down without deviation. The top sides of the mounting cover 901 are provided with sliding grooves that cooperate with the limit slide rods 918. The output end of the hydraulic cylinder 903 is fixedly connected to a connecting plate 920 that is rotatably connected to the movable roller 915. The connecting plate 920 is made of metal sheet, and the two limit slide rods 918 are fixedly installed on the top of the connecting plate 920. The connecting plate 920 is used for... The movable roller 915 and pressure roller 919 are installed. The hydraulic cylinder 903 can drive the connecting plate 920 to move up and down, thereby adjusting the height of the movable roller 915 and pressure roller 919. This ensures that the absorbent paper 911 can tightly adhere to the upper surface of the steel coil 6, and that the pressure roller 919 can adhere to the surface of the steel coil 6 for leveling. This accommodates steel strips of different thicknesses. Slide plates 916 are fixedly installed on the front and rear sides of the bottom of the connecting plate 920. The slide plates 916 are made of metal sheet, arranged vertically, and welded to the connecting plate 920 for a sturdy structure. The two slide plates 916 are symmetrically distributed and used to install the pressure roller 919 and the limiting plate 917. The two pressure rollers 919 are rotatably connected between the two slide plates 916. The two ends of the pressure rollers 919 are rotatably connected to the slide plates 916 through bearings, allowing for flexible rotation. They can rotate synchronously with the steel strip conveyor, avoiding wear on the steel strip. At the same time, they move synchronously back and forth with the connecting plate 920 to perform leveling operations on the steel coil 6. Limiting plates 917 are fixedly connected to the front and rear side walls of the two sliding plates 916. The limiting plates 917 are rectangular plates that are welded and fixed to the sliding plates 916. The structure is sturdy and is used to install the U-shaped seat 912. At the same time, it limits the movement of the cleaning sponge 914 to ensure that the cleaning sponge 914 can move synchronously with the movable roller 915. The U-shaped seat 912 is fixedly installed between the two limiting plates 917. The U-shaped seat 912 is made of bent metal plate and has a U-shaped structure. It is fixedly installed at the bottom of the two limiting plates 917. The structure is sturdy and is used to install the mounting shell 913 and the cleaning sponge 914.Both sides of the U-shaped seat 912 are fixedly connected to the corresponding limiting plates 917 by locking bolts 904. The locking bolts 904 are high-strength bolts, which, when tightened, can firmly fix the U-shaped seat 912 to the limiting plates 917. At the same time, it is easy to adjust the vertical position of the U-shaped seat 912 by loosening the locking bolts 904, thereby adjusting the height of the cleaning sponge 914. This ensures that the cleaning sponge 914 can be closely attached to the lower surface of the steel coil 6 and move synchronously with the movable roller 915 to achieve wiping and cleaning of the lower surface of the steel coil 6. The top of the U-shaped seat 912 is fixedly installed with a mounting shell 913. The mounting shell 913 has a rectangular shell structure with an opening at the top and is fixed to the top of the U-shaped seat 912 by bolts. It is used to install the cleaning sponge 914. The cleaning sponge 914 is installed inside the mounting shell 913 and fixed by the mounting shell 913 to ensure that the cleaning sponge 914 is closely attached to the bottom of the steel coil 6. It also facilitates the disassembly, cleaning and replacement of the cleaning sponge 914. Before operating the equipment, the position of the U-shaped seat 912 needs to be adjusted up and down by loosening the locking bolt 904, thereby adjusting the height of the cleaning sponge 914. After the adjustment is completed, tighten the locking bolt 904 to ensure that the cleaning sponge 914 can adhere to the lower surface of the steel coil 6 and move synchronously with the movable roller 915 to ensure the cleaning effect of the lower surface.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 12 As shown, the top of the first frame 1 is equipped with a laser cutting assembly 4 for cutting steel coils 6. The laser cutting assembly 4 is the core component for cutting steel strips, possessing advantages such as high cutting precision, fast cutting speed, and smooth cuts. It can accurately cut steel strips to meet processing requirements of different sizes. The laser cutting assembly 4 includes a first guide rail 401 fixedly installed on the top of the first frame 1 and the second frame 3. The first guide rail 401 is made of high-strength metal and is arranged horizontally. It is fixed to the top of the first frame 1 and the second frame 3 by bolts, spanning between the two frames. Its structure is robust and its positioning is precise. It provides sliding guidance for the electric slide block 402, ensuring that the electric slide block 402 can slide smoothly along the first guide rail 401 without jamming or offset. The electric slide block 402 is slidably connected to the outer wall of the first guide rail 401. The electric slide block 402 is a high-precision electric slide block with a built-in drive motor. The motor drives the pulley to slide smoothly along the first guide rail 401, achieving precise positioning for cutting operations at different positions. A laser cutting head 403 is installed at the bottom of the electric slide 402. The laser cutting head 403 is a high-precision laser cutting head that can emit high-intensity laser to achieve precise cutting of the steel strip. The laser cutting head 403 is detachably connected to the electric slide 402 for easy maintenance and replacement. Its height can be adjusted according to the thickness of the steel strip to ensure that the cutting effect meets the standards.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 12 and Figure 13 As shown, the rear side wall of the first frame 1 is provided with a clamping assembly 8 that cooperates with the laser cutting assembly 4 and the unwinding assembly 7. The clamping assembly 8 is used to clamp and fix one end of the steel strip during laser cutting to prevent the steel strip from shaking or shifting during the cutting process, ensuring cutting accuracy, and preventing the cut steel strip from falling off for easy collection later. The clamping assembly 8 includes a first cylinder 801 fixedly installed on the side wall of the first frame 1. The first cylinder 801 is a pneumatic cylinder with the advantages of adjustable clamping force and rapid action. It is fixed to the side wall of the first frame 1 by bolts. The output end slides through the side wall of the first frame 1 and extends to the inner side of the first frame 1 to drive the U-shaped block 802 to move and adjust the clamping position. The output end of the first cylinder 801 is fixedly connected to the U-shaped block 802. The U-shaped block 802 is made of welded metal sheet and has a U-shaped structure, which is sturdy and used to install the second cylinder 803 and... The clamping plate 804, when the first cylinder 801 is activated, drives the U-shaped block 802 to move back and forth, adjusting the relative position of the clamping plate 804 and the steel strip to accommodate steel strips of different sizes. A second cylinder 803, a pneumatic cylinder, is fixedly installed on the top of the U-shaped block 802, working in conjunction with the first cylinder 801. The output end of the second cylinder 803 has the clamping plate 804, which slides inside the U-shaped block 802. The clamping plate 804 is made of metal sheet with anti-slip textures on the bottom to increase friction with the steel strip, ensuring a firm grip and preventing slippage. The clamping plate 804 and the U-shaped block 802 clamp one end of the steel coil 6. When the steel strip is conveyed to the cutting position, the first cylinder 801 moves the U-shaped block 802 to one end of the steel strip, and the second cylinder 803 moves the clamping plate 804 downwards, engaging with the bottom of the U-shaped block 802 to firmly clamp one end of the steel strip, ensuring a stable cutting process.

[0035] It should be noted that when using this steel strip laser cutting equipment, before laser cutting the steel coil 6, the equipment should first be debugged, with a focus on debugging the oil stain cleaning component 9 on the steel coil surface to ensure that the cleaning and leveling effect meets the standards. The first step is to adjust the position of the cleaning sponge 914: loosen the locking bolts 904 on both sides of the U-shaped seat 912, adjust the height of the U-shaped seat 912 up and down, and then adjust the height of the cleaning sponge 914 installed inside the mounting shell 913 until the cleaning sponge 914 can fit tightly against the lower surface of the steel coil 6, and ensure that the cleaning sponge 914 can move synchronously with the movable roller 915. After debugging, tighten the locking bolts 904 to firmly fix the U-shaped seat 912 on the limiting plate 917, thus completing the position debugging of the cleaning sponge 914.

[0036] Installation of oil-absorbing paper 911: Since both the take-up roller 922 and the second unwind roller 923 are detachable, the new oil-absorbing paper 911 is tightly fitted onto the outside of the second unwind roller 923 and the take-up roller 922. Then, the take-up roller 922 and the second unwind roller 923 are installed on the inner wall of the mounting cover 901 through detachable bearings to ensure that both rotate smoothly and that the oil-absorbing paper 911 can rotate with the two rollers, thus completing the installation of the oil-absorbing paper 911.

[0037] To achieve the downward pressing and bonding of the oil-absorbing cotton paper 911: Start the hydraulic cylinder 903. The output end of the hydraulic cylinder 903 extends downward, driving the connecting plate 920, the movable roller 915, and the pressure roller 919 to move downward synchronously until the movable roller 915 presses the oil-absorbing cotton paper 911 tightly onto the upper surface of the steel coil 6, while the pressure roller 919 adheres to the surface of the steel coil 6, completing the downward pressing and bonding of the oil-absorbing cotton paper 911. At this time, close the hydraulic cylinder 903 and keep the current position unchanged.

[0038] Initiating oil stain cleaning and leveling operations: Start the third servo motor 906, which drives the rotating disk 907 to rotate. The rotating disk 907 drives the reciprocating slide bar 908 to perform linear reciprocating motion through the connecting rod 910. The reciprocating slide bar 908 drives the first slider 909 to slide synchronously along the second guide rail 902, thereby driving the hydraulic cylinder 903, connecting plate 920, movable roller 915, pressure roller 919, limit plate 917, U-shaped seat 912, mounting shell 913 and cleaning sponge 914 to move synchronously back and forth. During this process, the movable roller 915 drives the oil-absorbing paper 911 to repeatedly wipe the upper surface of the steel coil 6, absorbing the oil stains on the upper surface of the steel coil 6. At the same time, the oil-absorbing paper 911 is wound in the opposite direction to the steel coil conveying direction, in order to increase the friction of contact and improve the cleaning efficiency. The cleaning sponge 914 moves back and forth synchronously with the movable roller 915, wiping the lower surface of the steel coil 6, so as to achieve synchronous cleaning of the upper and lower surfaces of the steel coil 6. At the same time, the movable roller 915 presses the oil-absorbing paper 911 down so that the lower surface of the oil-absorbing paper 911 can be closely attached to the upper surface of the steel coil 6. Furthermore, the winding direction of the oil-absorbing paper 911 is opposite to the steel coil conveying direction, which can improve the wiping efficiency of the upper surface of the steel coil 6 and thus improve the cleaning efficiency of the steel coil 6.

[0039] The cyclical replacement of oil-absorbing cotton paper 911: During the cleaning process, the fourth servo motor 921 is started, which drives the take-up roller 922 to rotate slowly. The take-up roller 922 slowly rolls up the oil-absorbing cotton paper 911 after it has absorbed the oil. At the same time, the second unwind roller 923 rotates synchronously to release new oil-absorbing cotton paper 911, ensuring that the oil-absorbing cotton paper 911 is always clean and improving the cleaning effect. After all the oil-absorbing cotton paper 911 has been rolled up, the fourth servo motor 921 is turned off, the take-up roller 922 and the second unwind roller 923 are disassembled, new oil-absorbing cotton paper 911 is replaced, and the paper is reinstalled to continue the cleaning operation.

[0040] After cleaning and leveling are completed, the unwinding assembly 7 is started. The first servo motor 704 drives the drive gear 707 to rotate. The drive gear 707 meshes with the transmission gear 705 and the first unwinding roller 706 to rotate, and the steel coil 6 begins to unwind. The steel strip is smoothly conveyed along the conveyor roller 2 to the area below the laser cutting assembly 4. The clamping assembly 8 is started. The first cylinder 801 drives the U-shaped block 802 to move to one end of the steel strip, and the second cylinder 803 drives the clamping plate 804 to move downward, cooperating with the U-shaped block 802 to clamp and fix one end of the steel strip. The laser cutting assembly 4 is started. The electric slide 402 slides along the first guide rail 401, driving the laser cutting head 403 to move. The laser cutting head 403 emits a laser to precisely cut the leveled and cleaned steel strip. After cutting, the clamping assembly 8 releases the clamp, and the cut steel strip is collected to a preset position, completing one cutting operation. The above process is repeated to achieve batch processing.

[0041] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present 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 first frame (1), a second frame (3) fixedly mounted on the side wall of the first frame (1), an unwinding assembly (7) provided on the side wall of the first frame (1), a steel coil (6) provided on the unwinding assembly (7), and mounting plates (5) fixedly mounted on the top front side and top rear side of the first frame (1), characterized in that: The first frame (1) is provided with a steel coil surface oil stain cleaning assembly (9) that cooperates with the unwinding assembly (7). The steel coil surface oil stain cleaning assembly (9) includes a mounting cover (901) fixedly installed on the top of two mounting plates (5). A take-up roller (922) and a second unwinding roller (923) are rotatably installed on both sides of the inner side wall of the mounting cover (901). A fourth servo motor (921) for driving the take-up roller (922) to rotate is fixedly installed on the side wall of the mounting cover (901). The second unwinding roller (923) and the take-up roller (922) are fitted together with a suction device. Oil-absorbing cotton paper (911), the bottom of the oil-absorbing cotton paper (911) is attached to a movable roller (915) that is movably set above the first frame (1), the lower surface of the oil-absorbing cotton paper (911) is wiped back and forth on the upper surface of the steel coil (6) by the movable roller (915), the inner side wall of the first frame (1) is provided with a cleaning sponge (914) that slides and adheres to the lower surface of the steel coil (6), and the take-up roller (922) and the second unwinding roller (923) are both provided with pressure rollers (919) that move synchronously with the movable roller (915) and cooperate with the steel coil (6) to level it. An L-shaped mounting plate (905) is fixedly mounted on the side wall of the mounting cover (901). A third servo motor (906) is fixedly mounted on the top of the L-shaped mounting plate (905). The output end of the third servo motor (906) rotatably passes through the side wall of the L-shaped mounting plate (905) and is fixedly fitted with a rotating disk (907). A connecting rod (910) is rotatably connected to the eccentric position of the side wall of the rotating disk (907). A reciprocating slide rod (908) is rotatably connected to the other end of the connecting rod (910). A second guide rail (902) is fixedly mounted on the top of the mounting cover (901). A first slider is slidably connected to the inner side wall of the second guide rail (902). (909), the side wall of the first slider (909) is fixedly connected to the other end of the reciprocating slide rod (908), a hydraulic cylinder (903) is fixedly installed on the top of the first slider (909), and the bottom two side walls of the first slider (909) are slidably connected to the limiting slide rods (918) on both sides of the top of the mounting cover (901). The output end of the hydraulic cylinder (903) is movably connected to the bottom of the mounting cover (901), and the output end of the hydraulic cylinder (903) is fixedly connected to the connecting plate (920) which is rotatably connected to the movable roller (915). The bottoms of the two limiting slide rods (918) are fixedly installed on the top of the connecting plate (920).

2. The steel strip laser cutting equipment according to claim 1, characterized in that: The connecting plate (920) has a sliding plate (916) fixedly installed on the bottom front side and bottom rear side. The two pressure rollers (919) are rotatably connected between the two sliding plates (916). The front sidewall and rear sidewall of the two sliding plates (916) are fixedly connected to a limiting plate (917).

3. The steel strip laser cutting equipment according to claim 2, characterized in that: A U-shaped seat (912) is fixedly installed below the two limiting plates (917). Both sides of the U-shaped seat (912) are fixedly connected to the corresponding limiting plate (917) by locking bolts (904). An installation shell (913) is fixedly installed on the top of the U-shaped seat (912). The cleaning sponge (914) is installed inside the installation shell (913).

4. The steel strip laser cutting equipment according to claim 3, characterized in that: The top of the first frame (1) is provided with a laser cutting assembly (4) for cutting steel coils (6), and the rear side wall of the first frame (1) is provided with a clamping assembly (8) that cooperates with the laser cutting assembly (4) and the unwinding assembly (7).

5. The steel strip laser cutting equipment according to claim 4, characterized in that: The laser cutting assembly (4) includes a first guide rail (401) fixedly installed on the top of the first frame (1) and the second frame (3), an electric slide (402) is slidably connected to the outer side wall of the first guide rail (401), and a laser cutting head (403) is installed at the bottom of the electric slide (402).

6. The steel strip laser cutting equipment according to claim 4, characterized in that: The unwinding assembly (7) includes a mounting base (701) fixedly installed on the side wall of the first frame (1). A lead screw (702) is rotatably connected to the inner side wall of the mounting base (701). An adjusting slide (703) is threadedly fitted on the outer side wall of the lead screw (702) and slidably connected to the upper part of the mounting base (701). A fixed seat (708) is fixedly installed on the top of the mounting base (701). A first unwinding roller (706) is rotatably connected between the fixed seat (708) and the adjusting slide (703). The steel coil (6) is wound around the outer side wall of the first unwinding roller (706). A second servo motor (709) that drives the lead screw (702) to rotate is fixedly installed on the inner side wall of the second frame (3).

7. The steel strip laser cutting equipment according to claim 6, characterized in that: One end of the first unwinding roller (706) is fixedly connected to a transmission gear (705), and the side wall of the adjusting slide (703) is rotatably connected to a drive gear (707) that meshes with the transmission gear (705). The side wall of the adjusting slide (703) is fixedly installed with a first servo motor (704) that drives the drive gear (707) to rotate.

8. A steel strip laser cutting device according to claim 4, characterized in that: The inner sidewalls of the first frame (1) are rotatably connected to several conveying rollers (2) that cooperate with the steel coil (6) and the oil stain cleaning component (9) on the surface of the steel coil. The pressure roller (919), the movable roller (915) and the cleaning sponge (914) are movably connected between the two sets of conveying rollers (2).

9. A steel strip laser cutting device according to claim 4, characterized in that: The clamping assembly (8) includes a first cylinder (801) fixedly installed on the side wall of the first frame (1). The output end of the first cylinder (801) slides through the side wall of the first frame (1) and is fixedly connected to a U-shaped block (802). A second cylinder (803) is fixedly installed on the top of the U-shaped block (802). A clamping plate (804) that slides inside the U-shaped block (802) is fixedly installed on the output end of the second cylinder (803). The clamping plate (804) and the U-shaped block (802) clamp one end of the steel coil (6).

Images