A blank trimming device for stainless steel strip cold rolling production

Abstract

This invention relates to the field of stainless steel strip blank trimming technology, specifically to a blank trimming device for cold rolling stainless steel strip. It includes a worktable and a conveyor plate. The conveyor plate is used to fix the stainless steel strip and is mounted on the worktable. The worktable is equipped with multiple transport rollers for moving the conveyor plate. This solution utilizes multiple guide frames. When symmetrical arc-shaped trimming of the stainless steel strip's edges is required, multiple moving shafts are rotated, causing the guide frames to be arranged in a preset symmetrical arc shape. During trimming, the trimming blades change position as guided by the guide frames, thus ensuring the trimmed edge corresponds to the preset guide frame arrangement, thereby improving the trimming effect for a fixed length.

Description

Technical Field

[0001] This invention relates to the field of stainless steel strip blank trimming technology, specifically to a blank trimming device for cold rolling production of stainless steel strip. Background Technology

[0002] Stainless steel strip blank edge trimming involves precisely removing burrs, cracks, and irregular edges generated during rolling or slitting to ensure consistent strip width and smooth edges, thereby improving the finished product's appearance, dimensional accuracy, and mechanical properties. This process not only reduces scratches, wrinkles, or curling defects in subsequent processing but also optimizes material utilization and reduces waste, making it a crucial step in ensuring product reliability and production efficiency.

[0003] When trimming the blank, the stainless steel strip is usually cut on both sides by a rotating blade. However, during the cutting process, the debris generated will also fly everywhere as the initial speed of the blade rotates, which is not easy to deal with. In addition, due to the friction during the cutting process, the flying debris also has a certain temperature. If it flies onto the operator, it will cause injury to the operator.

[0004] For example, a stainless steel billet trimming device for cold rolling stainless steel strip, published in Chinese Patent Publication No. CN220362036U, is too fixed in its trimming process for stainless steel strip. The method can only be used to cut stainless steel strips of a fixed width, and its adaptability is limited. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a billet trimming device for cold rolling of stainless steel strip, so as to solve the problems mentioned in the background art.

[0006] To address the aforementioned problems, a billet trimming device for cold rolling of stainless steel strip is proposed, comprising a worktable and a conveyor plate. The conveyor plate is used to fix the stainless steel strip and is mounted on the worktable, which is equipped with multiple transport rollers for moving the conveyor plate. The workbench has two symmetrically arranged cutting blades on the moving path of the transmission plate. A first protective shell and a second protective shell are respectively provided above and below the cutting blades. In the initial state, the first protective shell and the second protective shell are far apart from each other in the vertical direction. When the cutting blade rotates to cut, the first protective shell and the second protective shell will move closer to each other. A guiding mechanism is provided above the transport roller. The guiding mechanism consists of multiple guide frames, and two guide frames are connected to the guide frames.

[0007] Preferably, during the movement of the conveyor plate: multiple guide frames adjust the distance between the two cutting blades, and multiple guide frames move synchronously with the conveyor plate, thereby adjusting the shape of the stainless steel strip cutting edge along the moving path formed by the multiple guide frames on the conveyor plate.

[0008] Preferably, a movable shaft is rotatably connected to the guide frame, and a first movable block and a second movable block are slidably connected to the guide frame, with the guide frame body respectively disposed below the first movable block and the second movable block; Both the first and second movable blocks are threadedly connected to the movable shaft. When the movable shaft rotates, it drives the first and second movable blocks to move in opposite or similar directions.

[0009] Preferably, any one of the conveying rollers rotates by the rotation of the drive shaft. A support plate is fixedly connected to the workbench, and a rotating shaft is rotatably connected to the support plate. A transmission wheel is connected to the rotating shaft, and the two transmission wheels located on the long side of the workbench are connected by a transmission belt. The drive shaft and the rotating shaft are connected by a synchronous belt. When the transport roller rotates, multiple guide frames also move synchronously with the movement of the transmission plate.

[0010] Preferably, a mounting frame is provided in the arrangement direction of the multiple transport rollers, an adapter shaft is fixedly connected to the mounting frame, two mounting rods are slidably connected to the adapter shaft, and two cutting blades are respectively disposed on the two mounting rods; The top of the mounting rod is equipped with a guide pulley, which is located within the channel formed by multiple guide frames. The guide pulley is used to reduce the friction when the mounting rod moves within the channel formed by the guide frames.

[0011] Preferably, the first and second protective shells are slidably connected to the mounting rod. The rear side of the cutting blade is driven to rotate by a cutting shaft. A driving device is connected to the cutting shaft. A first moving rod is fixedly connected to the first protective shell. A driving rack is provided on both sides of the first moving rod. A toothed gear is fixedly connected to the cutting shaft. The toothed gear and the driving rack are adapted to each other. The rotation of the toothed gear makes the first protective shell position close to the cutting blade.

[0012] Preferably, a transmission gear is rotatably connected to the mounting rod, and a second moving rod is fixedly connected to the second protective shell. The second moving rod is provided with a driven rack. The driving rack and the driven rack are located on opposite sides of the transmission gear, and both are meshed with the transmission gear.

[0013] Preferably, the bottom of the second protective shell is provided with a feeding port, a feeding frame is provided inside the feeding port, two blocking inclined plates are provided inside the feeding frame, and a collection groove is provided on the worktable. The debris generated when the stainless steel strip is cut will slide into the collection groove through the two blocking inclined plates.

[0014] Preferably, the transmission plate has insertion plates on both sides of its long side, and the insertion plates are equipped with fixing devices for fixing the stainless steel plate.

[0015] The beneficial effects of this invention are as follows: 1. This solution uses multiple guide frames. When it is necessary to symmetrically cut the edge of the stainless steel strip, multiple moving shafts are rotated to arrange the multiple guide frames in a preset symmetrical arc shape. When cutting the stainless steel strip, the cutting blade will change position as guided by the guide frames, so that the cut edge of the stainless steel strip corresponds to the preset arrangement of the guide frames, thereby improving the cutting effect of a fixed length.

[0016] 2. This solution, through the setting of a first protective shell and a second protective shell, allows the first and second protective shells to move closer together when the cutting blade rotates to cut the stainless steel strip. The debris generated during cutting is blocked by the first and second protective shells. Furthermore, through the setting of the feeding frame, the debris that splashes in all directions will slide into the collection groove, making it convenient for operators to collect the debris and preventing the debris with a certain temperature from causing injury to the operators. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the guide frame structure in this invention; Figure 3 This is a schematic diagram showing the positions of the mounting frame and the worktable in this invention; Figure 4 This is a schematic diagram showing the positions of the first protective shell and the second protective shell in this invention; Figure 5 This is a schematic diagram showing the position of the first moving rod in this invention; Figure 6 This is a cross-sectional view of the feeding frame in this invention; Figure 7 This is a schematic diagram of the transmission board in this invention.

[0018] In the picture: 1. Workbench; 2. Conveyor plate; 3. Cutting blade; 4. Transport roller; 5. Drive shaft; 6. Synchronous belt; 7. Support plate; 8. Transmission wheel; 9. Transmission belt; 10. Guide frame; 11. Moving shaft; 12. First moving block; 13. Second moving block; 14. Guide frame; 15. Mounting frame; 16. Mounting rod; 17. Guide pulley; 18. Adaptor shaft; 19. First protective shell; 20. Second protective shell; 21. Unloading frame; 22. Gear with missing teeth; 23. First moving rod; 24. Transmission gear; 25. Second moving rod; 26. Cutting shaft; 27. Blocking inclined plate; 28. Collection groove; 29. ​​Insertion plate; 30. Fixing device. Detailed Implementation

[0019] The following will refer to the attached reference. Figures 1 to 7 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] Example 1

[0021] A blank trimming device for cold rolling stainless steel strip includes a worktable 1 and a conveyor plate 2. The conveyor plate 2 is used to fix the stainless steel strip and is mounted on the worktable 1. The worktable 1 is equipped with multiple transport rollers 4 for moving the conveyor plate 2. The transport rollers 4 drive the conveyor plate 2 to move on the worktable 1 by rotation. This conveying method is a conventional driving method and will not be described in detail.

[0022] The workbench 1 has two symmetrically arranged cutting blades 3 on the moving path of the transmission plate 2. The cutting blades 3 are provided with a first protective shell 19 and a second protective shell 20 above and below them, respectively. The first protective shell 19 and the second protective shell 20 are used to protect the flying debris when the cutting blades 3 cut the stainless steel strip, and can also collect the debris.

[0023] A guiding mechanism is provided above the transport roller 4. The guiding mechanism consists of multiple guide frames 10, and two guide frames 14 are connected to the guide frames 10. The guiding mechanism can guide the two cutting blades 3, so that the cutting blades 3 can move with the arrangement of the multiple guide frames 14, thereby aligning the cutting edge of the stainless steel strip with the preset arrangement of the guide frames 14.

[0024] Example 2

[0025] This embodiment enables the adjustment of the position of the cutting blade 3 when cutting stainless steel strips, thereby achieving the cutting of different and continuously symmetrical stainless steel strips.

[0026] During the movement of the transmission plate 2: multiple guide frames 14 adjust the distance between the two cutting blades 3, and multiple guide frames 14 move synchronously with the transmission plate 2. The shape of the stainless steel strip cutting edge is adjusted by multiple guide frames 14 on the moving path formed by the transmission plate 2.

[0027] See attached document Figure 2 The guide frame 10 is rotatably connected to a movable shaft 11, and a first movable block 12 and a second movable block 13 are slidably connected to the guide frame 10. The guide frame 14 is respectively disposed below the first movable block 12 and the second movable block 13. The first moving block 12 and the second moving block 13 are both threadedly connected to the moving shaft 11. When the moving shaft 11 rotates, it will drive the first moving block 12 and the second moving block 13 to move in opposite or similar directions.

[0028] The multiple guide frames 10, by rotating different moving shafts 11 in sequence, cause multiple first moving blocks 12 and second moving blocks 13 to move. This results in the trajectory formed by the multiple guide frames 14 corresponding to the shape of the stainless steel strip to be cut. The trajectory formed by the multiple guide frames 14 is the distance the cutting blade 3 moves laterally during the movement of the multiple guide frames 10. By adjusting the position of the cutting blade 3 during the cutting process, different cutting edges of the stainless steel strip can be achieved. However, it should be noted that the guide frames 14 between adjacent guide frames 10 should be connected front to back without any gaps, to prevent the cutting blade 3 from moving outside the guide frame 14 during the movement of the multiple guide frames 14.

[0029] Each conveyor roller 4 rotates via the rotation of the drive shaft 5. A support plate 7 is fixedly connected to the worktable 1, and a rotating shaft is rotatably connected to the support plate 7. A transmission wheel 8 is connected to the rotating shaft. The two transmission wheels 8 located on the long side of the worktable 1 are connected by a transmission belt 9. The drive shaft 5 and the rotating shaft are connected by a synchronous belt 6. When the conveyor roller 4 rotates, multiple guide frames 10 also move synchronously with the movement of the transmission plate 2.

[0030] In this way, the transmission speed of the conveyor roller 4 to the transmission plate 2 can be consistent with the transmission speed of the drive belt 9 to the guide frame 10, thus avoiding the situation where the cut edge of the stainless steel strip is inconsistent with the path planned by the multiple guide frames 14.

[0031] Example 3

[0032] Initially, the first protective shell 19 and the second protective shell 20 are far apart in the vertical direction. When the cutting blade 3 rotates and cuts, the first protective shell 19 and the second protective shell 20 will move closer together. During the cutting process of the stainless steel strip, the debris generated by the cutting blade 3 will splash. The first protective shell 19 and the second protective shell 20, when they are close together, will block the splashing debris, protecting the surrounding operators. It also makes it easy to collect the debris.

[0033] A mounting frame 15 is provided in the arrangement direction of multiple transport rollers 4. An adapter shaft 18 is fixedly connected to the mounting frame 15. Two mounting rods 16 are slidably connected to the adapter shaft 18. Two cutting blades 3 are respectively set on the two mounting rods 16. The top of the mounting rod 16 is provided with a guide pulley 17, which is located in the channel formed by multiple guide frames 14. The guide pulley 17 is used to reduce the friction when the mounting rod 16 moves in the channel formed by the guide frames 14.

[0034] Refer to Appendix 3 - Appendix Figure 4 In Embodiment 2, after planning the trajectory formed by multiple guide frames 14, the transport roller 4 drives the stainless steel sheet to move, simultaneously causing multiple guide frames 10 to move. The positions of the guide frames 14 on the multiple guide frames 10 correspond to the shape of the stainless steel sheet. As the stainless steel sheet moves, the multiple guide frames 14 forming the trajectory also move. Under the action of the guide frames 14, the positions of the two cutting blades 3 also move, and the positions of the cutting blades 3 after moving always correspond to the two sides of the stainless steel sheet. Through the action of the cutting blades 3, burrs and other defects on both sides of the stainless steel sheet are cut. This method can cut stainless steel sheets of different shapes and mutual symmetry, and has wider adaptability compared to the current method that can only determine the position of the blades.

[0035] Specifically, the first protective shell 19 and the second protective shell 20 are slidably connected to the mounting rod 16. The rear side of the cutting blade 3 is driven to rotate by the cutting shaft 26. The cutting shaft 26 is externally connected to a driving device. A first moving rod 23 is fixedly connected to the first protective shell 19. A driving rack is provided on both sides of the first moving rod 23. A toothed gear 22 is fixedly connected to the cutting shaft 26. The toothed gear 22 is adapted to the driving rack. The rotation of the toothed gear 22 causes the first protective shell 19 to be positioned close to the cutting blade 3.

[0036] A transmission gear 24 is rotatably connected to the mounting rod 16, and a second moving rod 25 is fixedly connected to the second protective shell 20. The second moving rod 25 is provided with a driven rack. The driving rack and the driven rack are located on opposite sides of the transmission gear 24, and are both meshed with the transmission gear 24.

[0037] See attached document Figure 5 When the cutting blade 3 performs the cutting action, the cutting shaft 26 will rotate, thereby driving the cutting blade 3 to rotate. When the cutting shaft 26 rotates, it will also drive the toothed gear 22 to rotate. When the toothed gear 22 rotates, its gear edge will drive the first moving rod 23 to move downward through the drive rack. When the toothed edge is opposite to the first moving rod 23, the first moving rod 23 will have an upward tendency. Because the toothed gear 22 rotates at a high speed, the first moving rod 23 will be driven downward by the gear edge before it moves upward. Thus, the first protective shell 19 is always in a position close to the cutting blade 3.

[0038] When the first protective shell 19 moves downward, the drive rack on its other side moves downward synchronously. Through the action of the transmission gear 24, the second protective shell 20 below moves upward. Since the first protective shell 19 is always positioned close to the cutting blade 3 when the cutting blade 3 rotates, the second protective shell 20 will also always be positioned close to the cutting blade 3. In this way, the debris generated by the cutting blade 3 during cutting will be blocked by the first protective shell 19 and the second protective shell 20, and the blocked debris will lose its initial velocity and slide down to the bottom of the second protective shell 20.

[0039] The bottom of the second protective shell 20 is provided with a feeding port, inside which is a feeding frame 21. Two obstructing ramps 27 are provided inside the feeding frame 21. A collection groove 28 is provided on the workbench 1. Debris generated during the cutting of the stainless steel strip slides down into the collection groove 28 through the two obstructing ramps 27. The obstructing ramps 27 prevent downward-splashing debris from directly contacting the collection groove 28 through the feeding frame 21 and thus scattering it outside the collection groove 28. The debris that slides down will also slide down into the collection groove 28 under the influence of gravity, thus facilitating debris collection.

[0040] The transmission plate 2 has insertion plates 29 on both sides of its long side, and the insertion plates 29 are equipped with fixing devices 30 for fixing the stainless steel plates. The fixing devices 30 are conventional and are designed to prevent the stainless steel plates from shifting during edge cutting.

[0041] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A billet trimming device for cold rolling of stainless steel strip, characterized in that, It includes a workbench (1) and a transmission plate (2). The transmission plate (2) is used to fix the stainless steel strip. The transmission plate (2) is set on the workbench (1). The workbench (1) is provided with a plurality of transport rollers (4) for driving the transmission plate (2) to move. The workbench (1) has two symmetrically arranged cutting blades (3) on the moving path of the transmission plate (2). The cutting blades (3) are respectively provided with a first protective shell (19) and a second protective shell (20) above and below. In the initial state, the first protective shell (19) and the second protective shell (20) are far apart from each other in the vertical direction. When the cutting blades (3) rotate to cut, the first protective shell (19) and the second protective shell (20) will move closer to each other. A guide mechanism is provided above the transport roller (4). The guide mechanism consists of multiple guide frames (10), and two guide frames (14) are connected to the guide frames (10). During the movement of the transmission plate (2): multiple guide frames (14) adjust the distance between the two cutting blades (3), and multiple guide frames (14) move synchronously with the transmission plate (2). Through the multiple guide frames (14) on the moving path formed by the transmission plate (2), the shape of the stainless steel strip cutting edge is adjusted. The guide frame (10) is rotatably connected to a movable shaft (11), and the guide frame (10) is also slidably connected to a first movable block (12) and a second movable block (13). The guide frame (14) is respectively located below the first movable block (12) and the second movable block (13). The first moving block (12) and the second moving block (13) are both threadedly connected to the moving shaft (11). When the moving shaft (11) rotates, it will drive the first moving block (12) and the second moving block (13) to move in opposite or similar directions. A mounting frame (15) is provided in the arrangement direction of multiple transport rollers (4). An adapter shaft (18) is fixedly connected to the mounting frame (15). Two mounting rods (16) are slidably connected to the adapter shaft (18). Two cutting blades (3) are respectively set on the two mounting rods (16). The top of the mounting rod (16) is provided with a guide pulley (17), which is located in the channel formed by multiple guide frames (14). The guide pulley (17) is used to reduce the friction when the mounting rod (16) moves in the channel formed by the guide frames (14). The first protective shell (19) and the second protective shell (20) are slidably connected to the mounting rod (16).

2. The billet trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that, Any one of the transport rollers (4) rotates by the rotation of the drive shaft (5). A support plate (7) is fixedly connected to the worktable (1), and a rotating shaft is rotatably connected to the support plate (7). A transmission wheel (8) is connected to the rotating shaft. The two transmission wheels (8) located on the long side of the worktable (1) are connected by a transmission belt (9). The drive shaft (5) is connected to the rotating shaft by a synchronous belt (6). When the transport roller (4) rotates, multiple guide frames (10) will also move synchronously with the movement of the transmission plate (2).

3. The billet trimming device for cold rolling production of stainless steel strip according to claim 1, characterized in that, The rear side of the cutting blade (3) is driven to rotate by the cutting shaft (26). The cutting shaft (26) is externally connected to a driving device. The first protective shell (19) is fixedly connected to a first moving rod (23). Both sides of the first moving rod (23) are provided with driving racks. The cutting shaft (26) is fixedly connected to a toothed gear (22). The toothed gear (22) and the driving rack are adapted to each other. The rotation of the toothed gear (22) makes the first protective shell (19) close to the cutting blade (3).

4. The billet trimming device for cold rolling of stainless steel strip according to claim 3, characterized in that, A transmission gear (24) is rotatably connected to the mounting rod (16), and a second moving rod (25) is fixedly connected to the second protective shell (20). A driven rack is provided on the second moving rod (25). The driving rack and the driven rack are located on opposite sides of the transmission gear (24) and are meshed with the transmission gear (24).

5. A billet trimming device for cold rolling production of stainless steel strip according to claim 1, characterized in that, The bottom of the second protective shell (20) is provided with a feeding port, and a feeding frame (21) is provided inside the feeding port. Two obstructing inclined plates (27) are provided inside the feeding frame (21). A collection groove (28) is provided on the workbench (1). The debris generated when the stainless steel strip is cut falls into the collection groove (28) through the two obstructing inclined plates (27).

6. The billet trimming device for cold rolling production of stainless steel strip according to claim 1, characterized in that, The transmission plate (2) has insertion plates (29) on both sides of its long side. The insertion plate (29) is provided with a fixing device (30) for fixing the stainless steel strip.

Images