A cold-rolled steel strip side edge burr removal device

Abstract

The utility model belongs to cold-rolled steel strip production technical field especially relates to a cold-rolled steel strip side edge burr removal device, its characterized in that, including equipment base, slide rail, connecting big arm, connecting small arm, laser head unit and laser head support, equipment base below is equipped with the slide rail, and connecting big arm is connected with equipment base through fixed axle, and connecting big arm is connected with connecting small arm through rotary positioning mechanism, and laser head unit is connected with connecting small arm through laser head support, laser head unit top still is connected with transmission optical fiber, cable and gas pipe, and is equipped with on / off button on laser head unit. The utility model's advantage is: the side edge of cold-rolled steel strip is cut off with laser beam and finishes ablating at the same time, can satisfy the size requirement of steel strip width direction, can improve the smoothness of material surface after processing, can realize the adjustment of multiple side edge angles, satisfies the production demand of large quantities of cold-rolled steel plate, improves the side edge processing size precision and production efficiency of cold-rolled steel plate.

Description

Technical Field

[0001] This utility model belongs to the field of cold-rolled steel strip production technology, and in particular relates to a device for removing side burrs from cold-rolled steel strip. Background Technology

[0002] Cold-rolled strip steel is a metallic material produced by cold rolling hot-rolled strip steel at room temperature. It typically has a thickness of 0.1-3 mm and a width of 100-2000 mm, and is characterized by high surface finish, good dimensional accuracy, and excellent mechanical properties. Product forms include coils, coated steel sheets, carbon structural steel, stainless steel, and electrical steel, and it is widely used in machinery manufacturing, the automotive industry, home appliance production, and building decoration. The production process includes pickling, cold rolling, annealing, and finishing. Quality is ensured by controlling parameters such as reduction and tension, and a leveling process is used to improve sheet shape and performance.

[0003] During the production of cold-rolled strip steel, errors can cause the width of the two sides of the strip to be different. Therefore, it is necessary to cut the two sides of the cold-rolled strip steel to make them parallel. After cutting, the two sides of the strip steel need to be deburred. Manually using a grinder to grind and deburr the edges of the cold-rolled plate is not only time-consuming and labor-intensive, but the waste generated may also cause harm to the workers' health, posing a certain risk factor. At the same time, it is difficult to accurately control the degree of grinding on the plate surface, which seriously affects the quality of the cold-rolled strip steel.

[0004] Chinese utility model patent with patent number 202221122349.9 discloses a cold-rolled strip steel cutting device, including a base, a cutting device, a conveying device, a rolling assembly, and a grinding assembly. An adjustment assembly is installed at the bottom of the support plate. Two sets of support rods are respectively connected to the two sides of the adjustment assembly. One end of the push rod is connected to the output end of the cylinder, and the other end of the push rod is connected to the cutter. The conveying device is installed on the top of the base for conveying the cold-rolled strip steel. The rolling assembly is installed on the fixed plate, and the grinding assembly is installed on the side wall of the support plate.

[0005] Chinese utility model patent No. 202122911312.6 discloses a deburring device for high yield strength cold-rolled steel sheets, including a transmission box, a processing box on the top of the transmission box, grooves at both ends of the processing box, a screw inside the grooves, a drive motor on the outside of the processing box, and the output shaft of the drive motor being movably connected to the screw through a pulley and a belt. Threaded blocks are provided on the outer periphery of both ends of the screw, and an electric push rod is fixedly provided at the bottom of the threaded blocks. A micro motor is fixedly provided at the bottom of the electric push rod, and a rotating wheel is fixedly provided at the bottom output shaft end of the micro motor. A grinding disc is provided at the bottom of the rotating wheel. This device can effectively replace traditional manual processing and greatly improve processing efficiency.

[0006] The existing grinding method used for deburring the sides of cold-rolled steel strips is subject to failure and replacement of the grinding discs, which are consumable materials, during the mass production of cold-rolled steel sheets. This inevitably affects the dimensional accuracy of the cold-rolled steel sheets and the production efficiency. It is necessary to adopt a more efficient and accurate technical solution. Utility Model Content

[0007] The purpose of this invention is to provide a device for removing side burrs from cold-rolled steel strips, overcoming the shortcomings of existing technologies. It adopts a laser cutting operation, using a laser beam to cut and ablate the side edges of the cold-rolled steel strips. This not only meets dimensional requirements but also improves the surface finish of the processed material. Furthermore, it allows for the adjustment of various side angles, meeting the needs of large-scale cold-rolled steel sheet production and improving the side dimensional accuracy and production efficiency of cold-rolled steel sheets.

[0008] To achieve the above objectives, this utility model employs the following technical solution: A device for removing side burrs from cold-rolled steel strip includes a base, a slide rail, a connecting arm, a connecting forearm, a laser head unit, and a laser head bracket. The slide rail is located below the base. The connecting arm is connected to the base via a fixed shaft and to the connecting forearm via a rotary positioning mechanism. The laser head unit is connected to the connecting forearm via the laser head bracket. The top of the laser head unit is also connected to a transmission optical fiber, a cable, and a gas supply pipe. An on / off button is provided on the laser head unit.

[0009] Furthermore, the equipment base and the slide rail are fixedly connected by a limiting pressure plate, and the position of the equipment base relative to the slide rail is adjustable.

[0010] Furthermore, the laser head unit is a 3000W fiber laser cutting unit with a maximum cutting speed of 100m / min.

[0011] Furthermore, the rotary positioning mechanism includes a rotary shaft and a servo motor with a circular encoder. The outer side of the rotary shaft is fixedly connected to the connecting arm, and the inner side of the rotary shaft is connected to the output shaft of the servo motor via a double key. The servo motor is fixedly connected to the connecting arm via a motor mount, and both ends of the rotary shaft are connected to the connecting arm via bearings.

[0012] Furthermore, the limiting pressure plate structure includes a pressure plate, a positioning bolt, a support base, and a set screw. One end of the pressure plate presses against the protrusion at the lower edge of the equipment base, and the other end of the pressure plate presses against the support block of the support base. The positioning bolt passes through the pressure plate and connects to the support base. The set screw is set on the set screw seat at the end of the support base. After the positioning bolt is fixed, the pressure plate remains horizontal. There are multiple limiting pressure plate structures, which are respectively set on the base components inside the slide rail on the front and / or rear sides of the equipment base.

[0013] Furthermore, the gas supply pipe is connected to a nitrogen pipe or a compressed air pipe, and valves are provided on the nitrogen pipe and the compressed air pipe respectively.

[0014] Furthermore, the end of the rotary shaft is provided with an angle scale, with a minimum scale of 0.5°, and the pointer is drawn on the outside of the connecting arm.

[0015] Compared with the prior art, the beneficial effects of this utility model are: The laser edge cutting method uses a laser beam to cut off the side edge of the cold-rolled steel strip while simultaneously ablating it. This method can meet the dimensional requirements in the width direction of the steel strip and improve the surface finish of the processed material. It can also achieve various side angle adjustments, such as directly cutting out welding bevels, making the production process flexible, meeting the production needs of large-volume cold-rolled steel sheets, and improving the side processing dimensional accuracy and production efficiency of cold-rolled steel sheets. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the symmetrical arrangement structure in the production of cold-rolled steel strip according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the rotary positioning mechanism according to an embodiment of the present utility model; In the diagram: 1-Equipment base, 2-Slide rail, 3-Connecting upper arm, 4-Connecting lower arm, 5-Laser head unit, 6-Laser head bracket, 7-Fixed shaft, 8-Rotation positioning mechanism, 9-Transmission fiber optic cable, 10-Gas supply pipe, 11-Servo motor, 12-Rotation shaft, 13-Bearing, 14-Pressure plate, 15-Positioning bolt, 16-Support seat, 17-Support block, 18-Top screw seat, 19-Top screw, 20-Beam expander system, 21-Dynamic focusing system, 22-Focusing lens, 23-Cold rolled steel strip, 24-Cutting head, 25-Roller, 26-Angle scale. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0019] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] See Figure 1-3 This is a schematic diagram of a cold-rolled steel strip side burr removal device according to an embodiment of the present invention. It includes a base 1, a slide rail 2, a connecting arm 3, a connecting arm 4, a laser head unit 5, and a laser head support 6. The slide rail 2 is located below the base 1. The connecting arm 3 is connected to the base 1 via a fixed shaft 7 and to the connecting arm 4 via a rotary positioning mechanism 8. The laser head unit 5 is connected to the connecting arm 4 via the laser head support 6. The top of the laser head unit 5 is also connected to a transmission optical fiber 9, a cable, and a gas supply pipe 10. An on / off button is provided on the laser head unit 5. The laser head unit 5 is a 3000W fiber laser cutting unit manufactured by Bond Company, with a maximum cutting speed of 100m / min.

[0021] The equipment base 1 and the slide rail 2 are fixedly connected by a limiting pressure plate. The position of the equipment base 1 relative to the slide rail 2 is adjustable, allowing for front and rear position adjustment of the device. The limiting pressure plate structure includes a pressure plate 14, a positioning bolt 15, a support seat 16, and a set screw 19. One end of the pressure plate 14 presses against the lower edge protrusion of the equipment base 1, and the other end of the pressure plate 14 presses against the support block 17 of the support seat 16. The positioning bolt 15 passes through the pressure plate 14 and connects to the support seat 16. The set screw is set on the set screw seat 18 at the end of the support seat 16. After the positioning bolt 15 is fixed, the pressure plate 14 remains horizontal. There can be multiple limiting pressure plates, which are respectively set on the base components inside the slide rail 2 on the front and / or rear sides of the equipment base 1.

[0022] The rotary positioning mechanism 8 includes a rotary shaft 12 and a servo motor 11 with a circular encoder. The outer side of the rotary shaft 12 is fixedly connected to the connecting arm 4, and the inner side of the rotary shaft 12 is connected to the output shaft of the servo motor 11 via a double key. The servo motor 11 is fixedly connected to the connecting arm 3 via a motor mount. Both ends of the rotary shaft 12 are connected to the connecting arm 3 via bearings 13. Controlling the servo motor 11 can achieve the deflection of the laser head unit 5 relative to the rotary shaft 12, thereby controlling the angle between the laser beam and the side of the cold-rolled steel strip. This allows for the cutting of vertical or beveled sides with different angles, such as welding bevels, to meet production requirements.

[0023] Gas supply pipe 10 connects to nitrogen and / or oxygen pipes respectively. Valves are installed on both the nitrogen and oxygen pipes, which can be selected according to different steel strip materials. In fiber laser cutting, the gas mainly plays the following roles: Blowing away molten slag: High-pressure jetting removes molten slag and debris generated during the cutting process, ensuring the laser beam continuously acts on the material surface for efficient and precise cutting. Assisting cutting: Oxygen reacts with carbon steel and other materials to release heat, accelerating the cutting speed, suitable for thick plates and high-speed cutting. Nitrogen, as an inert gas, prevents oxidation of stainless steel, aluminum alloys, and other materials, resulting in a smooth cut. Cooling the kerf: Gas flow lowers the temperature of the kerf area, reducing the heat-affected zone and preventing overheating deformation or oxidation of the material. Protecting optical components: Nitrogen can blow away contaminants on the lens surface, preventing laser beam deviation or discontinuous cutting.

[0024] The end of the rotary shaft 12 is equipped with an angle scale 26, with a minimum scale of 0.5°. The pointer is marked on the outside of the connecting arm 3. By controlling the servo motor 11, the precise deflection angle of the laser head unit can be obtained, making the angle of the cold-rolled steel strip side uniform and consistent. This is suitable for making V-shaped bevels on the side of the steel strip. Under normal circumstances, adjusting the cutting head 24 to a vertical position will yield a qualified vertical cut edge for the cold-rolled steel strip product.

[0025] In the embodiment of this utility model, two burr removal devices are placed on both sides of the cold-rolled steel strip 23, located at marker points A and B respectively. The equipment base 1 and slide rail 2 are positioned in the middle of adjacent conveyor rollers. The front and rear positions of the burr removal devices are adjusted according to the dimensions of the cold-rolled steel strip. After the positions are adjusted, the equipment base 1 is fixed to the slide rail 2 using a limiting pressure plate structure. Based on the shape requirements of the side of the cold-rolled steel strip, the rotary positioning mechanism 8 is adjusted so that the angle between the laser head unit and the side of the steel strip meets the process requirements. The conveyor rollers are then opened to move the cold-rolled steel strip 23 relative to the burr removal devices at a speed lower than 100 m / min to ensure that the surface quality of the side of the processed cold-rolled steel strip meets the process requirements.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing side burrs from cold-rolled steel strip, characterized in that, The device includes a base, a slide rail, a connecting arm, a connecting forearm, a laser head unit, and a laser head bracket. The base has a slide rail underneath. The connecting arm is connected to the base via a fixed shaft and to the connecting forearm via a rotary positioning mechanism. The laser head unit is connected to the connecting forearm via the laser head bracket. The top of the laser head unit is also connected to a transmission optical fiber, a cable, and a gas supply pipe. The laser head unit has an on / off button.

2. The cold-rolled steel strip side burr removal device according to claim 1, characterized in that, The equipment base and the slide rail are fixedly connected by a limiting pressure plate, and the position of the equipment base relative to the slide rail is adjustable.

3. The cold-rolled steel strip side burr removal device according to claim 1, characterized in that, The laser head unit is a 3000W fiber laser cutting unit with a maximum cutting speed of 100m / min.

4. The cold-rolled steel strip side burr removal device according to claim 1, characterized in that, The rotary positioning mechanism includes a rotary shaft and a servo motor with a circumferential encoder. The outer side of the rotary shaft is fixedly connected to the connecting arm, and the inner side of the rotary shaft is connected to the output shaft of the servo motor via a double key. The servo motor is fixedly connected to the connecting arm via a motor mount, and both ends of the rotary shaft are connected to the connecting arm via bearings.

5. The cold-rolled steel strip side burr removal device according to claim 2, characterized in that, The limiting pressure plate structure includes a pressure plate, positioning bolts, a support base, and a set screw. One end of the pressure plate presses against the protrusion at the lower edge of the equipment base, and the other end of the pressure plate presses against the support block of the support base. The positioning bolts pass through the pressure plate and connect to the support base. The set screws are set on the set screw seat at the end of the support base. After the positioning bolts are fixed, the pressure plate remains horizontal. There are multiple limiting pressure plate structures, which are respectively set on the base components inside the slide rail on the front and / or rear sides of the equipment base.

6. The cold-rolled steel strip side burr removal device according to claim 1, characterized in that, The gas supply pipes are respectively connected to nitrogen pipes or compressed air pipes, and valves are provided on the nitrogen pipes and compressed air pipes respectively.

7. The cold-rolled steel strip side burr removal device according to claim 4, characterized in that, The end of the rotary shaft is equipped with an angle scale, with a minimum scale of 0.5°, and the pointer is drawn on the outside of the connecting arm.

Images