A strip steel continuous trimming device and production line
By combining strip edge detection equipment and laser cutting components, the problems of high equipment cost, difficulty in control, and safety risks of disc shearing devices in continuous strip production have been solved, achieving precise cutting and efficient production.
Patent Information
- Application Number
- CN202521934546.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-09
AI Technical Summary
In the existing technology, the disc shearing device has high equipment cost and is difficult to control in the continuous production of strip steel. In addition, the strip steel is prone to hardening during the shearing process, and the shearing width cannot be adjusted in real time, resulting in the waste edge breaking off and requiring manual handling, which poses a safety risk.
Employing strip edge detection equipment and laser cutting components, the strip edge position is detected, and the laser cutting components independently cut on both sides of the strip. Combined with the drive components, the laser can move precisely and dynamically adjust the cutting edge width, avoiding the mechanical squeezing damage of traditional disc shears. A spare laser cutting component is also provided to enable maintenance without stopping the machine.
It enables precise cutting of the strip steel edges, avoids hardening damage, improves production stability and economic efficiency, reduces the risk of manually handling waste edges, and improves raw material utilization and processing performance.
Smart Images
Figure CN224674042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strip steel trimming technology, and more specifically, to a continuous strip steel trimming device and production line. Background Technology
[0002] Strip trimming is a critical step in the metallurgical industry, especially in integrated pickling and cold rolling production. The core requirements are to ensure the strip edges are neat, remove defective edges, adapt to the "continuous and high-speed" production rhythm, and uniformly handle the trimmed waste edges.
[0003] In related technologies, disc shearing is mainly used for edge cutting. However, disc shearing requires the addition of a looper to ensure continuous production without speed reduction, which increases equipment costs and control difficulty. During the edge cutting process, disc shearing inevitably compresses the strip steel, which can easily cause the strip steel to harden and affect subsequent rolling. For different steel coils, the ends of different steel coils need to be welded before edge cutting to ensure the continuity of edge cutting. The ends of the weld are then cut off with crescent shears to form an inward concavity, preventing the excess parts on both sides of the welded strip steel of inconsistent widths from scraping the equipment and affecting the stable operation of the strip steel. However, since disc shearing cannot adjust the edge cutting width in real time, when cutting to the concavity at the ends of the weld, disc shearing cannot cut the strip steel inside the concavity, resulting in the continuous waste edge breaking. The broken waste edge needs to be handled manually, which poses a certain degree of danger. Utility Model Content
[0004] This utility model aims to solve at least one of the above-mentioned problems.
[0005] To solve the above problems, this utility model provides a continuous strip cutting device and production line.
[0006] In a first aspect, this utility model provides a continuous strip cutting device, comprising a strip edge detection device and two laser cutting assemblies arranged sequentially along the strip running direction. The strip edge detection device is located above the strip and is used to obtain the edge positions on both sides of the strip. The two laser cutting assemblies are respectively located on both sides of the strip running direction. Each laser cutting assembly includes a laser and a driving assembly connected to each other. The driving assembly is used to move the laser cutting end of the laser to the target position, and the laser is used to cut the strip.
[0007] Optionally, the driving assembly includes a linear guide rail and a driving device. The linear guide rail includes a fixed track and a sliding bracket. The sliding bracket reciprocates along the fixed track. The laser is mounted on the sliding bracket, and the driving device is connected to the sliding bracket. The fixed track is fixed to the mounting surface.
[0008] Optionally, the drive device includes at least one of a servo hydraulic cylinder, a pneumatic cylinder, and an electric telescopic rod.
[0009] Optionally, the drive assembly further includes a displacement sensor disposed on the drive device, the displacement sensor being used to acquire the extension displacement of the drive device.
[0010] Optionally, the strip continuous edge trimming device further includes two backup laser cutting components, which are respectively located on both sides of the strip running direction.
[0011] Optionally, the continuous strip trimming device further includes pickling equipment, which is located upstream of the strip edge detection equipment along the running direction of the strip, and the strip outlet end of the pickling equipment is connected to the strip inlet end of the strip edge detection equipment.
[0012] Optionally, the continuous strip cutting device further includes a waste edge coiler, which is located downstream of the laser cutting assembly along the running direction of the strip and is used to collect the waste edges after laser cutting.
[0013] Optionally, the continuous strip cutting device further includes a cooling assembly, which includes a cooling jacket and a coolant circulation pipe. The cooling jacket is fitted over the outside of the laser, and the two ends of the coolant circulation pipe are connected to the inlet and outlet of the cooling jacket, respectively.
[0014] Optionally, the guide surface of the linear guide is coated with a wear-resistant coating.
[0015] Secondly, this utility model provides a continuous strip trimming production line, including the continuous strip trimming device as described in the first aspect.
[0016] The beneficial effects of the continuous strip cutting device of this utility model are: Firstly, the strip edge detection equipment, positioned above the strip, accurately acquires the position information of both sides of the strip edge, providing real-time and reliable positioning data for subsequent cutting and laying the foundation for precise adjustment of the cutting width. The design of two laser cutting components, each positioned on either side of the strip's running direction, allows for independent cutting operations on both sides of the strip edge. Through the drive component within the laser cutting assembly, the laser cutting end of the laser can be precisely moved to the target position. Furthermore, by combining the edge position information from the strip edge detection equipment, dynamic adjustment of the cutting width can be achieved, solving the problems inherent in traditional disc shears. The inability to effectively widen the strip leads to the easy breakage of the edge wires when the strip passes through the crescent shear area, requiring manual re-threading, which is labor-intensive and poses safety risks. Ensuring edge wire continuity is crucial. Furthermore, laser cutting, compared to the mechanical extrusion cutting of traditional disc shears, does not cause hardening damage to the strip edge, improving the quality of the strip edge. Laser cutting also features superior edge quality and smaller cutting volume, increasing the utilization rate of strip raw materials. It can also achieve localized heat treatment of the strip edge, further optimizing the processing performance of the strip edge during subsequent rolling, thus improving the overall production stability and economic benefits of the unit. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the continuous strip cutting device provided in the embodiment of the present utility model; Figure 2 This is a schematic diagram of the cutting path provided in an embodiment of the present invention.
[0018] Explanation of reference numerals in the attached figures: 1. Steel strip; 2. Steel strip edge inspection equipment; 3. Laser cutting assembly; 31. Laser; 32. Linear guide rail; 33. Servo hydraulic cylinder; 34. Displacement sensor; 4. Spare laser cutting assembly; 5. Pickling process equipment. Detailed Implementation
[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.
[0020] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0021] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0022] like Figure 1 As shown in the figure, the present invention provides a continuous strip cutting device, including a strip edge detection device 2 and two laser cutting components 3 arranged sequentially along the running direction of the strip 1. The strip edge detection device 2 is located above the strip 1 and is used to obtain the edge positions on both sides of the strip 1. The two laser cutting components 3 are respectively located on both sides of the running direction of the strip 1. Each laser cutting component 3 includes a laser 31 and a driving component connected to each other. The driving component is used to move the laser cutting end of the laser 31 to the target position. The laser 31 is used to cut the strip 1.
[0023] Specifically, the strip edge detection device 2 can employ the existing EMG VK13 inductive measuring device, which can accurately detect edges in polluted environments, compensating for the influence of material and height. The strip edge detection device 2 is positioned above the strip 1 to acquire the edge positions on both sides of the strip 1 and transmit these positions to the processor of the drive assembly. The processor can use existing methods, such as addition and subtraction, i.e., subtracting the distance from the edge position to the axis of the strip 1 from the current position of the laser 31, and then adding the shearing width, to obtain the distance the laser 31 needs to move. Based on this distance, the laser 31 is driven to move, thereby adjusting the edge-cutting position of the laser 31. Figure 1 The arrow in the image indicates the direction of travel for strip 1. For example... Figure 2 As shown in the figure, the dashed line represents the trajectory of the laser 31 cutting edge, the middle vertical line represents the weld seam, the right side of the middle vertical line represents the tail of the previous strip 1, and the left side represents the head of the next strip 1. Figure 2As can be seen, the two strip steel sections 1 have different widths, and after welding and crescent shearing, the width of the two sides of the strip steel 1 changes significantly. However, the continuous strip steel cutting device provided in this embodiment can still ensure the same cutting width.
[0024] In this embodiment, the strip edge detection device 2, positioned above the strip 1, accurately acquires the position information of both sides of the strip 1's edges, providing real-time and reliable positioning data for subsequent cutting and laying the foundation for precise adjustment of the cutting width. The design of two laser cutting components 3, respectively positioned on either side of the strip 1's running direction, allows for independent cutting operations on both sides of the strip's edges. Through the driving component in the laser cutting component 3, the laser cutting end of the laser 31 can be precisely moved to the target position. Furthermore, by combining the edge position information from the strip edge detection device, dynamic adjustment of the cutting width can be achieved, solving the problem of… The traditional disc shear cannot effectively adjust the strip width, causing the edge wires to easily break when the strip passes through the crescent shear area, requiring manual re-threading, which is labor-intensive and poses safety risks. This invention ensures continuous edge wires. In addition, the laser cutting method of laser 31, compared with the mechanical extrusion cutting of the traditional disc shear, does not cause hardening damage to the strip edge, thus improving the quality of the strip edge. At the same time, laser cutting has the characteristics of high-quality cutting and small cutting amount, which can improve the utilization rate of strip raw materials. It can also realize local heat treatment of strip edge, further optimizing the processing performance of strip edge during subsequent rolling, and improving the overall production stability and economic benefits of the unit.
[0025] Optionally, such as Figure 1 As shown, the driving assembly includes a linear guide rail 32 and a driving device. The linear guide rail 32 includes a fixed track and a sliding bracket. The sliding bracket slides back and forth along the fixed track. The laser 31 is mounted on the sliding bracket, and the driving device is connected to the sliding bracket. The fixed track is fixed to the mounting surface.
[0026] Specifically, the drive assembly includes a linear guide rail 32 and a drive device. The linear guide rail 32 includes a fixed track and a sliding bracket. The sliding bracket slides back and forth along the fixed track. The laser 31 is mounted on the sliding bracket, and the drive device is connected to the sliding bracket. The fixed track is fixed to the mounting surface. Thus, under the drive of the drive device, the laser 31 moves in the direction of approaching or moving away from the strip 1 to adjust the cutting edge width.
[0027] Optionally, such as Figure 1 As shown, the drive device includes at least one of a servo hydraulic cylinder 33, a pneumatic cylinder, and an electric telescopic rod.
[0028] Specifically, the driving device includes at least one of a servo hydraulic cylinder 33, a pneumatic cylinder, and an electric telescopic rod, thereby enabling the movement of the laser 31.
[0029] Optionally, such as Figure 1 As shown, the drive assembly also includes a displacement sensor 34, which is disposed on the drive device and is used to acquire the extension displacement of the drive device.
[0030] Specifically, the drive assembly also includes a displacement sensor 34, which is located on the drive device. The displacement sensor 34 is used to obtain the extension displacement of the drive device, such as the extension displacement of the servo hydraulic cylinder 33, the pneumatic cylinder and the electric telescopic rod, i.e. the extension amount. Since the drive device drives the laser 31 to move along the width direction of the strip 1, the displacement of the laser 31 is the same as the extension displacement of the drive device, so the displacement of the laser 31 can be obtained to achieve precise drive control.
[0031] Optionally, such as Figure 1 As shown, the continuous strip cutting device also includes two backup laser cutting components 4, which are respectively located on both sides of the running direction of the strip 1.
[0032] Specifically, the continuous strip cutting device also includes two backup laser cutting components 4, which are respectively located on both sides of the running direction of the strip 1, realizing the "one backup, one use" laser configuration logic on both the operation side and the transmission side. This enables maintenance without stopping the machine, and unlike traditional disc shears, it does not require stopping the machine for adjustment or maintenance. Consequently, it eliminates the need for a looper device (traditional looper devices require a correction device, increasing equipment investment and control difficulty), significantly reducing the overall investment cost and control complexity of the unit.
[0033] Optionally, such as Figure 1 As shown, the continuous strip cutting device also includes pickling equipment 5, which is located upstream of the strip edge detection equipment 2 along the running direction of the strip 1, and the strip outlet end of the pickling equipment 5 is connected to the strip inlet end of the strip edge detection equipment 2.
[0034] Specifically, the continuous strip trimming device also includes pickling equipment 5, which is located upstream of strip edge detection equipment 2 along the running direction of strip 1. The strip outlet end of pickling equipment 5 is connected to the strip inlet end of strip edge detection equipment 2. Strip 1 first enters pickling equipment 5 for pickling, and then enters strip inlet end of strip edge detection equipment 2 from the strip outlet end of pickling equipment 5.
[0035] Optionally, the continuous strip cutting device further includes a waste edge coiler, which is located downstream of the laser cutting assembly 3 along the running direction of the strip 1, and is used to collect the waste edges cut by the laser 31.
[0036] Specifically, the continuous strip cutting device also includes a waste edge coiler, which is located downstream of the laser cutting assembly 3 along the running direction of the strip 1. It is used to collect the waste edges after the laser 31 cuts the strip. The waste edge inlet of the waste edge coiler is connected to the cutting point of the strip 1 so as to smoothly feed the waste edges into the waste edge coiler.
[0037] Optionally, the continuous strip cutting device further includes a cooling assembly, which includes a cooling jacket and a coolant circulation pipe. The cooling jacket is fitted over the outside of the laser 31, and the two ends of the coolant circulation pipe are respectively connected to the inlet and outlet of the cooling jacket.
[0038] Specifically, the strip continuous edge cutting device also includes a cooling component, which includes a cooling jacket and a coolant circulation pipe. The cooling jacket is fitted on the outside of the laser 31, and the two ends of the coolant circulation pipe are connected to the inlet and outlet of the cooling jacket, respectively, so as to inject coolant into the cooling jacket and thereby cool the laser 31.
[0039] Optionally, the guide surface of the linear guide 32 is coated with a wear-resistant coating.
[0040] Specifically, the guide surface of the linear guide 32 is coated with a wear-resistant coating to reduce wear on the linear guide 32.
[0041] This utility model provides a continuous strip trimming production line, including the continuous strip trimming device described above.
[0042] The advantages of the continuous strip trimming production line in this embodiment compared to the prior art are the same as those of the continuous strip trimming device described above, and will not be repeated here.
[0043] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A continuous strip cutting device, characterized in that, The device includes a strip edge detection device (2) and two laser cutting assemblies (3) arranged sequentially along the running direction of the strip (1). The strip edge detection device (2) is located above the strip (1) and is used to obtain the edge positions on both sides of the strip (1). The two laser cutting assemblies (3) are respectively located on both sides of the running direction of the strip (1). The laser cutting assembly (3) includes a laser (31) and a driving assembly connected to each other. The driving assembly is used to move the laser cutting end of the laser (31) to the target position. The laser (31) is used to cut the strip (1).
2. The continuous strip cutting device according to claim 1, characterized in that, The drive assembly includes a linear guide rail (32) and a drive device. The linear guide rail (32) includes a fixed track and a sliding bracket. The sliding bracket slides back and forth along the fixed track. The laser (31) is mounted on the sliding bracket, and the drive device is connected to the sliding bracket. The fixed track is fixed to the mounting surface.
3. The continuous strip cutting device according to claim 1, characterized in that, The drive device includes at least one of a servo hydraulic cylinder (33), a pneumatic cylinder, and an electric telescopic rod.
4. The continuous strip cutting device according to claim 2, characterized in that, The drive assembly further includes a displacement sensor (34), which is disposed on the drive device and is used to acquire the extension displacement of the drive device.
5. The continuous strip cutting device according to claim 1, characterized in that, It also includes two backup laser cutting components (4), which are respectively located on both sides of the running direction of the strip (1).
6. The continuous strip trimming device according to claim 1, characterized in that, It also includes pickling process equipment (5), which is located upstream of the strip edge detection equipment (2) along the running direction of the strip (1), and the strip outlet end of the pickling process equipment (5) is connected to the strip inlet end of the strip edge detection equipment (2).
7. The continuous strip cutting device according to claim 1, characterized in that, It also includes a waste edge coiler, which is located downstream of the laser cutting assembly (3) along the running direction of the strip (1) and is used to collect the waste edges after the laser (31) cuts.
8. The continuous strip cutting device according to claim 1, characterized in that, It also includes a cooling assembly, which includes a cooling jacket and a coolant circulation pipe. The cooling jacket is fitted over the outside of the laser (31), and the two ends of the coolant circulation pipe are connected to the inlet and outlet of the cooling jacket, respectively.
9. The continuous strip cutting device according to claim 2, characterized in that, The guide surface of the linear guide (32) is coated with a wear-resistant coating.
10. A continuous strip steel trimming production line, characterized in that, Includes the strip continuous edge trimming device as described in any one of claims 1 to 9.