A flying shear for transversely cutting a rolled piece
Patent Information
- Application Number
- CN202522558449.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-12-02
AI Technical Summary
[0005]为了解决现有的飞剪机在剪切板材时，转轴受到的径向力较大容易损伤轴承的问题，本申请提供了一种轧件横向剪切的飞剪机
包括工作台、机架、旋转辊、电机、缓冲件和切刀，机架设于工作台上；旋转辊转动连接在机架上，且旋转辊的辊面与工作台的台面之间形成有用于工件穿行的通料道；电机与旋转辊传动连接并能够驱动该旋转辊旋转；缓冲件设于旋转辊的辊面上；切刀沿旋转辊的轴向设于缓冲件上，在电机驱动旋转辊带动切刀旋转时，该切刀的刀口能够与工作台的台面抵接，并切断位于通料道内的工件，与现有飞剪机相比，现有的飞剪机在剪切板材时，刀片在接触轧件瞬间受到的巨大反向作用力会分解为轴向力与径向力，径向力沿转轴轴线传递至支撑轴承，导致轴承早期疲劳损坏；而本飞剪机通过缓冲件缓冲切刀受到的冲击力，可减少传递到旋转辊及相关部件的径向力，避免轴承承受显著的径向冲击载荷，降低轴承损坏风险，提高设备生产的连续性和稳定性。
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Figure CN224879467U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of flying shear technology, and in particular to a flying shear for transverse shearing of rolled pieces. Background Technology
[0002] Flying shears are key pieces of equipment on steel rolling production lines for lateral shearing of moving rolled pieces. They are mainly used for processes such as length cutting, head cutting, tail cutting, and accident handling. In flying shears, the blades are typically mounted on a rotating cutter head or drum, and are driven by a drive system to perform high-speed shearing.
[0003] When shearing sheet metal, the blades of existing flying shears are subjected to a huge reverse force at the moment of contact with the rolled workpiece. This force can be decomposed into axial and radial forces, with the radial force being transmitted along the axis of the shaft to the support bearing. After prolonged exposure to such significant radial impact loads, the bearing's raceways and rolling elements will experience premature fatigue damage, leading to increased bearing clearance, abnormal temperature rise, and even seizure failure, severely impacting the continuity and stability of production.
[0004] Therefore, there is a need to provide a flying shear for transverse shearing of rolled products. Utility Model Content
[0005] To address the problem that existing flying shears experience excessive radial force on the shaft during sheet metal shearing, which can easily damage the bearings, this application provides a flying shear for transverse shearing of rolled products.
[0006] This application provides a flying shear machine for transverse shearing of rolled products, which adopts the following technical solution: it includes a worktable, a frame, a rotating roller, a motor, a buffer component and a cutter, wherein the frame is mounted on the worktable; The rotating roller is rotatably connected to the frame, and a material passage for workpiece passage is formed between the roller surface of the rotating roller and the table surface of the worktable. The motor is connected to the rotating roller and can drive the rotating roller to rotate. The buffer element is disposed on the roller surface of the rotating roller; The cutter is mounted on the buffer along the axial direction of the rotating roller. When the motor drives the rotating roller to rotate the cutter, the cutting edge of the cutter can abut against the table surface of the worktable and cut off the workpiece located in the material passage.
[0007] By adopting the above technical solution, the rotating roller of this flying shear and the worktable form a material passage for easy workpiece passage. The motor drives the rotating roller to rotate the cutter, which can cut the workpiece in the material passage. The buffer component is set on the roller surface of the rotating roller to buffer the radial force transmitted from the cutter to the rotating roller. Compared with existing flying shears, when shearing sheet metal, the huge reverse force that the blade receives at the moment of contact with the rolled workpiece is decomposed into axial force and radial force. The radial force is transmitted to the support bearing along the axis of rotation, leading to premature fatigue damage of the bearing. However, this flying shear buffers the impact force on the cutter through the buffer component, which can reduce the radial force transmitted to the rotating roller and related components, avoid the bearing bearing significant radial impact load, reduce the risk of bearing damage, and improve the continuity and stability of equipment production.
[0008] Specifically, the buffer component includes multiple buffer blocks, the rotating roller has a buffer groove, the multiple buffer blocks are disposed in the buffer groove, the side of the cutter away from its own cutting edge is sealed on the opening of the buffer groove, and the multiple buffer blocks are abutted between the groove wall of the buffer groove and the cutter.
[0009] By adopting the above technical solution, when the cutter cuts the workpiece, multiple buffer blocks can disperse the radial force transmitted by the cutter to the rotating roller, reduce the damage to the rotating roller, and improve the service life and working stability of the flying shear.
[0010] Furthermore, the buffer also includes an elastic membrane disposed between the cutter and the rotating roller and capable of sealing the opening of the buffer groove, and the elastic membrane and the plurality of buffer blocks are abutted between the groove wall of the buffer groove and the cutter.
[0011] By adopting the above technical solution, when the cutter does not come into contact with the workpiece or other external objects, the elastic membrane can bind multiple buffer blocks in the buffer groove, so that these buffer blocks are kept in contact between the groove wall of the buffer groove and the elastic membrane.
[0012] Furthermore, a dovetail groove is provided axially on the shaft of the rotating roller, and a buffer groove is provided on the side wall of the dovetail groove away from its own opening. The side of the cutter away from its own cutting edge can be inserted into the dovetail groove and abut against the groove wall of the dovetail groove, and the cutting edge of the cutter extends out of the rotating roller through the opening of the dovetail groove.
[0013] By adopting the above technical solution, the dovetail groove opened on the rotating roller shaft can position and guide the cutter, so that the cutter can be accurately installed on the rotating roller and set along the axial direction, ensuring the installation accuracy of the cutter; the side of the cutter away from the blade edge is inserted into the dovetail groove and abuts against the groove wall, which can enhance the stability of the cutter installation and prevent the cutter from shaking or shifting when shearing the workpiece; the buffer groove opened in the groove wall of the dovetail groove, together with the buffer component, can further buffer the impact force on the cutter; the cutter blade edge extends out of the rotating roller through the opening of the dovetail groove, which can effectively cut the workpiece in the material passage.
[0014] Furthermore, the rotating roller also includes a pair of abutment plates and a pair of limiting bolts. Limiting screw holes are provided at both ends of the rotating roller. Each abutment plate is provided with a clearance hole. The clearance hole and the limiting screw hole correspond one-to-one with the limiting bolt. Each limiting bolt can be screwed to the rotating roller through its own screw end through the corresponding clearance hole and the limiting screw hole, and the abutment plate is abutted between the screw head end of the limiting bolt and the rotating roller, and the cutter is abutted between the two abutment plates.
[0015] By adopting the above technical solution, the limiting bolts are threaded through the clearance holes on the abutment plate and screwed into the limiting screw holes at both ends of the rotating roller. The abutment plate can be abutted between the screw head of the limiting bolt and the rotating roller, thereby abutting the cutter between the two abutment plates. This achieves reliable fixing of the cutter, prevents the cutter from shifting or loosening during the rotation of the rotating roller, ensures the stability and reliability of the cutter when shearing rolled parts, and improves the working accuracy and efficiency of the flying shear machine.
[0016] Furthermore, the limiting bolt is a hand-tightening bolt.
[0017] By adopting the above technical solution, the limit bolt is set as a hand-tightening bolt, which can be tightened or loosened directly by hand without the need for additional tools. This makes it easy for operators to quickly install or remove the abutment plate, thereby facilitating the replacement and maintenance of the cutter and improving the maintenance efficiency of the flying shear machine.
[0018] Furthermore, a spring washer is provided between the screw head end of each of the abutment plates and the corresponding limiting bolt.
[0019] By adopting the above technical solution, a spring washer is set between the screw head of the abutment plate and the limit bolt, which can prevent the limit bolt from loosening, ensure the abutment plate's abutment action on the cutter, make the cutter installation more stable, and thus ensure the stability and reliability of the cutter during the operation of the flying shear machine, and improve the cutting accuracy and quality.
[0020] Specifically, it also includes a protective plate, the top of which is connected to the frame, and the bottom of which extends downward and is not lower than the bottom of the rotating roller.
[0021] By adopting the above technical solution, the top of the protective plate is connected to the frame and the bottom extends downwards to a level not lower than the bottom of the rotating roller, which can protect the rotating roller, prevent operators from accidentally contacting the rotating roller, improve the safety of the flying shear machine during use, and at the same time prevent debris from splashing into the material passage between the rotating roller and the worktable, ensuring the normal operation of the flying shear machine.
[0022] In summary, this application includes the following beneficial technical effects: The machine includes a worktable, frame, rotating roller, motor, buffer, and cutter. The frame is mounted on the worktable. The rotating roller is rotatably connected to the frame, and a material passage for workpieces is formed between the roller surface and the worktable surface. The motor is driven by the rotating roller and can drive its rotation. The buffer is located on the roller surface of the rotating roller. The cutter is mounted on the buffer along the axial direction of the rotating roller. When the motor drives the rotating roller to rotate the cutter, the cutter's blade can abut against the worktable surface and cut the workpiece located in the material passage. Compared with existing flying shears, when shearing sheet metal, the huge reverse force that the blade receives at the moment of contact with the rolled workpiece is decomposed into axial and radial forces. The radial force is transmitted to the support bearing along the axis of rotation, leading to premature fatigue damage of the bearing. This flying shear, however, uses a buffer to buffer the impact force on the cutter, which can reduce the radial force transmitted to the rotating roller and related components, avoid the bearing from bearing significant radial impact load, reduce the risk of bearing damage, and improve the continuity and stability of equipment production. Attached Figure Description
[0023] Figure 1 This is a perspective view of a flying shear for transverse shearing of rolled products according to this application; Figure 2 This is a schematic cross-sectional view taken along the central axis of the rotating roller in the length direction of this application; Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the AA direction; Figure 4 yes Figure 3 A schematic enlarged view of region B, showing the spring pad.
[0024] Reference numerals in the attached drawings: 1. Workbench; 2. Frame; 3. Rotating roller; 31. Abutment plate; 32. Limit bolt; 33. Spring pad; 4. Motor; 5. Buffer component; 51. Buffer block; 52. Elastic membrane; 6. Cutter; 7. Protective plate. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1-4 Further explanation: See Figure 1 and Figure 2The flying shear for transverse shearing of rolled products provided in this application includes: a worktable 1, a frame 2, a rotating roller 3, a motor 4, a buffer 5, a cutter 6, and two protective plates 7. The frame 2 can be a gantry frame composed of two columns and a crossbeam. The two columns of the frame 2 are set on the worktable 1, and the rotating roller 3 is set between the two columns along the length of the crossbeam. The two ends of the rotating roller 3 are rotatably connected to the adjacent columns by bearings. The two protective plates 7 are arranged opposite each other with the crossbeam as the center. The top of each protective plate 7 is bolted through a through hole in the protective plate 7 and a screw hole in the crossbeam. The screw is connected to the frame 2. The bottom of each protective plate 7 extends downward and is not lower than the bottom of the rotating roller 3, so that the protective plate 7 can protect the rotating roller 3 and prevent the operator from accidentally contacting the rotating roller 3, thus improving the safety of the flying shear during use. At the same time, it can also prevent debris from splashing into the material passage between the rotating roller 3 and the worktable 1, ensuring the normal operation of the flying shear. A material passage for workpieces to pass through is formed between the roller surface of the rotating roller 3 and the table surface of the worktable 1. The motor 4 is mounted on the frame 2, and the output shaft of the motor 4 is connected to the rotating shaft of the rotating roller 3 and can drive the rotating roller 3 to rotate.
[0026] See Figure 2 and Figure 3 The rotating roller 3 has a dovetail groove axially formed on its shaft. A buffer groove is formed on the side of the dovetail groove away from its opening. The side of the cutter 6 away from its cutting edge can be inserted into the dovetail groove and abut against the groove wall. The cutting edge of the cutter 6 extends through the opening of the dovetail groove and out of the rotating roller 3. The buffer element 5 includes an elastic membrane 52 and multiple buffer blocks 51. The elastic membrane 52 is located between the cutter 6 and the rotating roller 3 and can seal the opening of the buffer groove. The multiple buffer blocks 51 are located in the buffer groove, and the elastic membrane 52 and the multiple buffer blocks 51 are abutted against the groove wall of the buffer groove and between the cutter 6. The rotating roller 3 also includes a pair of abutment plates 31 and a pair of limiting bolts 32. Limiting bolt holes are formed at both ends of the rotating roller 3. Each of the components 1 has clearance holes, and the clearance holes and limit screw holes correspond one-to-one with the limit bolts 32. Each limit bolt 32 can be screwed to the rotating roller 3 through its own screw end through the corresponding clearance hole and limit screw hole. The abutment plate 31 is abutted between the screw head end of the limit bolt 32 and the rotating roller 3, and the cutter 6 is abutted between the two abutment plates 31 to achieve reliable fixation of the cutter 6, prevent the cutter 6 from being displaced or loosened during the rotation of the rotating roller 3, ensure the stability and reliability of the cutter 6 when shearing the rolled workpiece, and improve the working accuracy and efficiency of the flying shear. When the motor 4 drives the rotating roller 3 to rotate the cutter 6, the blade of the cutter 6 can abut against the table surface of the worktable 1 and cut the workpiece located in the material passage.
[0027] See Figure 2 and Figure 4Specifically, the limiting bolt 32 can be a hand-tightening bolt, allowing users to tighten or loosen it by hand without additional tools. This facilitates quick installation or removal of the abutment plate 31, making it easier to replace and maintain the cutter 6, thus improving the maintenance efficiency of the flying shear. Spring washers 33 can also be placed between the bolt heads of each abutment plate 31 and the corresponding limiting bolt 32 to prevent the limiting bolt 32 from loosening, ensuring the abutment plate 31's contact with the cutter 6 and making the cutter 6 more securely installed. This ensures the stability and reliability of the cutter 6 during operation, improving cutting accuracy and quality. The buffer block 51 can be an irregular metal block, allowing multiple buffer blocks 51 to be bound by the elastic membrane 52. The buffer blocks 51 can lock together in the buffer groove, preventing them from sliding radially on the rotating roller 3 when the cutter 6 transmits radial force. This also makes the contact surfaces between the multiple buffer blocks 51 irregular, similar to a pile of stones under a railway track, dispersing the radial force transmitted by the cutter 6 over a wide area. This avoids significant radial impact loads on the bearings, reduces the risk of bearing damage, and improves the continuity and stability of equipment production. The buffer blocks 51 can also be relatively large sand or gravel, which, similar to a pile of stones under a railway track, disperses the radial force transmitted by the cutter 6 over a wide area, avoiding significant radial impact loads on the bearings, reducing the risk of bearing damage, and improving the continuity and stability of equipment production. Furthermore, it significantly reduces the pressure between the multiple buffer blocks 51 and the buffer groove wall.
[0028] The working principle of the flying shear for transverse shearing of rolled products according to this application is as follows: In this flying shear, the rotating roller 3 and the worktable 1 form a material passage for easy workpiece passage. The motor 4 drives the rotating roller 3, which in turn drives the cutter 6 to rotate and cut the workpiece in the material passage. The buffer 5 is installed on the surface of the rotating roller 3 to buffer the radial force transmitted from the cutter 6 to the rotating roller 3. Compared with existing flying shears, when shearing sheet metal, the huge reverse force that the blade experiences at the moment of contact with the rolled workpiece is decomposed into axial and radial forces. The radial force is transmitted along the axis of rotation to the support bearing, leading to premature fatigue damage of the bearing. In contrast, this flying shear uses the buffer 5 to buffer the impact force on the cutter 6, which reduces the radial force transmitted to the rotating roller 3 and related components, avoids the bearing bearing significant radial impact load, reduces the risk of bearing damage, and improves the continuity and stability of equipment production.
[0029] It should be noted that the above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A flying shear for transverse shearing of rolled products, characterized in that: It includes a worktable (1), a frame (2), a rotating roller (3), a motor (4), a buffer (5), and a cutter (6), wherein the frame (2) is mounted on the worktable (1); The rotating roller (3) is rotatably connected to the frame (2), and a material passage for workpiece passage is formed between the roller surface of the rotating roller (3) and the table surface of the worktable (1); The motor (4) is connected to the rotating roller (3) and can drive the rotating roller (3) to rotate; The buffer (5) is disposed on the roller surface of the rotating roller (3); The cutter (6) is mounted on the buffer (5) along the axial direction of the rotating roller (3). When the motor (4) drives the rotating roller (3) to rotate the cutter (6), the cutting edge of the cutter (6) can abut against the table surface of the worktable (1) and cut off the workpiece located in the material passage.
2. The flying shear for transverse shearing of rolled products according to claim 1, characterized in that: The buffer component (5) includes multiple buffer blocks (51), and a buffer groove is provided on the rotating roller (3). The multiple buffer blocks (51) are disposed in the buffer groove. The side of the cutter (6) away from its own cutting edge is sealed on the opening of the buffer groove, and the multiple buffer blocks (51) are abutted between the groove wall of the buffer groove and the cutter (6).
3. A flying shear for transverse shearing of rolled products according to claim 2, characterized in that: The buffer (5) further includes an elastic membrane (52), which is disposed between the cutter (6) and the rotating roller (3) and can block the opening of the buffer groove. The elastic membrane (52) and the plurality of buffer blocks (51) are abutted between the groove wall of the buffer groove and the cutter (6).
4. A flying shear for transverse shearing of rolled products according to claim 3, characterized in that: The rotating roller (3) has a dovetail groove along its axial direction. The buffer groove is provided on the side wall of the dovetail groove away from its own opening. The side of the cutter (6) away from its own cutting edge can be inserted into the dovetail groove and abut against the groove wall of the dovetail groove. The cutting edge of the cutter (6) extends out of the rotating roller (3) through the opening of the dovetail groove.
5. A flying shear for transverse shearing of rolled products according to claim 4, characterized in that: The rotating roller (3) also includes a pair of abutment plates (31) and a pair of limiting bolts (32). Both ends of the rotating roller (3) are provided with limiting screw holes. Each abutment plate (31) is provided with a clearance hole. The clearance hole and the limiting screw hole correspond one-to-one with the limiting bolt (32). Each limiting bolt (32) can be connected to the rotating roller (3) by passing its own screw end through the corresponding clearance hole and the limiting screw hole, and the abutment plate (31) is abutted between the screw head end of the limiting bolt (32) and the rotating roller (3), and the cutter (6) is abutted between the two abutment plates (31).
6. A flying shear for transverse shearing of rolled products according to claim 5, characterized in that: The limiting bolt (32) is a hand-tightening bolt.
7. A flying shear for transverse shearing of rolled products according to claim 5, characterized in that: Each of the abutment plates (31) and the corresponding limiting bolts (32) is provided with a spring washer (33).
8. A flying shear for transverse shearing of rolled products according to claim 1, characterized in that: It also includes a protective plate (7), the top of which is connected to the frame (2), and the bottom of which extends downward and is not lower than the bottom of the rotating roller (3).