A stainless steel strip edge trimming device

Abstract

The application discloses a stainless steel strip edge scraping device, which comprises a rack, a strip conveying roller mechanism and an edge scraping execution mechanism arranged on the rack; the edge scraping execution mechanism comprises a base, a pre-pressing roller assembly and a scraping assembly; the scraping assembly is arranged between two adjacent lateral pre-pressing rollers along the steel strip running direction, and comprises two clamping seats arranged on the rack; the left and right sides of each clamping seat are provided with interval distributed pressing blocks, and the adjacent pressing blocks form mounting cavities; a retractable scraper is arranged in each mounting cavity; the scraping assembly further comprises a cutting knife, which is located at the side of the steel strip and can reciprocatingly slide along the steel strip running direction; the cutting knife is arranged in an inclined manner relative to the side of the steel strip; the cutting knife edge is attached to the side of the steel strip, so that the cutting knife can scrape off the burrs scraped by the scraper to the side of the steel strip when the cutting knife reciprocatingly slides. The application forms segmented clamping and double scraping on the steel strip.

Description

Technical Field

[0001] This invention relates to the field of stainless steel strip processing technology, and in particular to a stainless steel strip scraping device. Background Technology

[0002] After rolling and slitting, stainless steel strips are prone to developing burrs and rough edges on both sides. If these burrs are not removed, they can easily scratch equipment and workpiece surfaces during subsequent winding, stamping, and composite processing, and will also generate metal debris, affecting the quality of the finished product. Therefore, it is necessary to scrape and deburr the sides of the steel strip. Most existing steel strip scraping equipment uses a method of clamping the steel strip in a partial manner, with the scraper continuously scraping the side burrs along the direction of the steel strip's travel. This type of structure has obvious shortcomings: First, the steel strip is prone to lateral movement and shaking during its travel, resulting in insufficient clamping stability and easy deviation of the steel strip during scraping, leading to unstable scraping quality. Second, continuous scraping over a long distance at once can leave burrs on the surface of the steel strip, making them difficult to remove completely. Summary of the Invention

[0003] The purpose of this invention is to provide a stainless steel strip scraping device to overcome the shortcomings of the above-mentioned technology.

[0004] This invention designs a stainless steel strip scraping device, including a frame. The frame is equipped with a strip conveying roller mechanism that horizontally conveys the steel strip in a front-to-back direction, and scraping execution mechanisms symmetrically arranged on the left and right sides of the steel strip. The scraping execution mechanism includes a base, a pre-compression roller assembly, and a scraping assembly. The base is mounted on the frame. The pre-compression roller assembly includes a roller support, a lateral pre-compression roller, and a roller-side elastic element. The lateral pre-compression roller is rotatably mounted on the roller support, and the roller support is floatingly mounted on the base via the roller-side elastic element. The base is mounted on the support, and the roller surface of the lateral pre-compression roller is in contact with the side edge of the steel strip. The scraping assembly is arranged between two adjacent lateral pre-compression rollers along the steel strip's travel direction. The scraping assembly includes two clamping seats mounted on the frame, positioned opposite each other above and below the steel strip. The two clamping seats can move up and down relative to the steel strip, and the up-and-down movement of the clamping seats is achieved by a telescopic rod or a hydraulic cylinder. The moving clamping seats are provided with spaced pressure blocks on their left and right sides along the steel strip's travel direction. The surface of each pressure block facing the steel strip is the clamping surface. Two clamping seats clamp the steel strip through the clamping surfaces of the corresponding pressure blocks, forming an installation cavity between adjacent pressure blocks. Each installation cavity is provided with a retractable scraper. The blade of the scraper is close to the side of the steel strip and adheres to the surface of the steel strip. The scraper scrapes the burrs on the surface of the steel strip to the side of the steel strip by extending and retracting left and right. The pressure blocks of the upper and lower clamping seats on the same side are staggered so that the installation cavity of one clamping seat corresponds to the pressure block of the other clamping seat on the same side. The scraping assembly also includes a cutting blade mounted on the frame. The cutting blade is located on the side of the steel strip and can slide back and forth along the steel strip's travel direction. The cutting blade is inclined relative to the side of the steel strip, and the blade of the cutting blade adheres to the side of the steel strip so that the cutting blade can scrape off the burrs scraped to the side of the steel strip when it slides back and forth.

[0005] The frame is equipped with a slide rail, and the base is equipped with a sliding open mechanism that slides with the slide rail. The frame is also equipped with a servo adjustment unit, the drive end of which is connected to the base to drive the base to move horizontally left and right relative to the steel strip.

[0006] Further optimization involves two preload roller assemblies forming a group, with the two preload roller assemblies in the same group distributed on the same side and spaced apart along the direction of the steel strip travel. There are two groups of preload roller assemblies, which are symmetrically distributed on the left and right sides of the steel strip.

[0007] Further optimization involves mounting the two preload roller groups in the same group on the same base, so that the relative distance between the two preload roller groups can be adjusted.

[0008] Preferably, the base has an installation groove on the side facing the steel strip for the roller bracket to be movably embedded, the back of the roller bracket has a first positioning hole, the bottom of the installation groove has a second positioning hole, and the roller-side elastic element is located between the first positioning hole and the second positioning hole.

[0009] Preferably, the frame is provided with a tool holder, the cutting tool is movably mounted on the tool holder, and an elastic element is provided between the cutting tool and the tool holder to provide a preload force for the cutting tool to adhere to the steel strip.

[0010] Preferably, the clamping base includes a base and two movable blocks, which are symmetrically distributed on the left and right sides of the base. Both movable blocks are slidably connected to the base so that the relative distance between the two movable blocks can be adjusted. The pressure block is integrally disposed on the movable blocks.

[0011] Preferably, the frame is provided with chip collection grooves below both sides of the steel strip, and the frame is provided with downward blowing fans above both sides of the steel strip, so that the fans blow the scraped burrs or debris downward into the chip collection grooves, while avoiding the accumulation of scraped burrs or debris on the steel strip.

[0012] Further optimization involves a linear motor drive mounted on the frame, with the tool holder rotatably connected to the output of the linear motor drive, allowing the tool holder to adjust its installation angle relative to the frame.

[0013] The technical advantages of this invention are as follows: the steel strip is segmented and clamped by spaced-out pressure blocks, and the upper and lower clamping pressure blocks are staggered. The steel strip is divided into multiple scraping areas. Based on the clamping and positioning by the pressure blocks, the scraper in the mounting cavity scrapes or flattens the burrs on the surface of the steel strip in segments. Compared with the traditional whole-partial clamping and one-time scraping method, the steel strip is clamped more stably, suppressing steel strip shaking and lateral displacement, the burrs are removed more cleanly, and the scraping efficiency is higher. A preload roller assembly is installed, with lateral preload rollers floating against the side of the steel strip under the action of elastic elements on the roller side, pre-positioning the steel strip laterally, reducing lateral movement of the steel strip, and providing a positional reference for subsequent scraping. The base can move left and right along the slide rail via a servo adjustment unit, the spacing of the preload roller assembly is adjustable, and the spacing of the moving blocks of the clamping seat is adjustable, which can adapt to various widths of stainless steel strips; The scraper first scrapes the burrs on the surface of the steel strip toward the side of the steel strip, and then the reciprocating sliding cutting blade performs a second cutting on the side of the steel strip, removing burrs twice and improving the trimming quality. The cutting tool is preloaded by an elastic element, and the tilt angle of the tool holder can be flexibly adjusted in conjunction with the linear motor drive to ensure that the cutting edge is in contact with the side of the steel strip; With a compact overall structure, floating preload rollers, retractable cutters, and linear motor-driven reciprocating cutting blades, this product offers fast response and stable operation, making it suitable for online edge scraping operations on continuous stainless steel strip production lines. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure (the strip conveyor roller mechanism is omitted).

[0015] Figure 2 It is a structural assembly drawing of the clamping seat and the scraper.

[0016] Figure 3 This is a three-dimensional structural view of the clamping seat and preload roller assembly.

[0017] Figure 4 This is a structural diagram of the scraping actuator.

[0018] Figure 5 This is a structural side view of the clamping seat and preload roller assembly.

[0019] Figure 6 This is a sectional view of the structural assembly of the cutting tool and tool holder.

[0020] In the diagram: 1. Frame; 2. Strip conveyor roller mechanism; 3. Steel strip; 4. Scraping actuator; 41. Base; 42. Preload roller assembly; 421. Roller support; 422. Lateral preload roller; 423. Roller side elastic element; 43. Scraping assembly; 431. Clamping seat; 4311. Base; 4312. Moving block; 432. Pressure block; 433. Mounting cavity; 434. Scraper; 435. Cutting blade; 436. Tool holder; 437. Elastic element; 5. Slide rail; 6. Servo adjustment unit; 7. Mounting slot; 8. First positioning hole; 10. Chip collection groove; 11. Fan; 12. Linear motor drive. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0022] This invention discloses a scraping device for stainless steel strip 3, which includes a frame 1, a strip conveying roller mechanism 2 installed on the frame 1, the strip conveying roller mechanism 2 continuously conveys the steel strip 3 in the front and rear horizontal direction; scraping execution mechanisms 4 are symmetrically arranged on the left and right sides of the steel strip 3, and the scraping and deburring operation of the left and right sides of the steel strip 3 is completed simultaneously on both sides.

[0023] The scraping actuator 4 includes a base 41, a pre-pressure roller assembly 42, and a scraping assembly 43. The base 41 is slidably mounted on the slide rail 5 of the frame 1. The frame 1 is equipped with a servo adjustment unit 6, such as a servo motor or a hydraulic cylinder. The servo adjustment unit 6 drives the base 41 to move horizontally left and right along the slide rail 5, thereby changing the distance between the scraping actuator 4 and the side of the steel strip 3 to adapt to the change in the width of the steel strip 3.

[0024] Two preload roller assemblies 42 form a group. The two preload roller assemblies 42 in the same group are located on the same side of the steel strip 3 and are arranged at intervals along the traveling direction of the steel strip 3. A total of two groups of preload roller assemblies are set up, and the two groups are arranged on the left and right sides of the steel strip 3 respectively. The two preload roller assemblies 42 on the same side are installed on the same base 41 and move synchronously with the base 41. As the bases 41 on both sides move relative to each other or in opposite directions, the spacing between the preload roller groups 42 on both sides of the steel strip 3 can be adjusted, thereby adapting to the width change of the steel strip 3.

[0025] Each preload roller assembly 42 includes a roller bracket 421, a lateral preload roller 422, and a roller-side elastic element 423. A mounting groove 7 is formed on the side of the base 41 facing the steel strip 3. The roller bracket 421 is embedded inside the mounting groove 7 and can move axially along the mounting groove. A first positioning hole 8 is provided on the back of the roller bracket 421, and a second positioning hole 9 is provided at the bottom of the mounting groove 7. The roller-side elastic element 423 (usually a spring) is assembled between the first positioning hole 8 and the second positioning hole 9, enabling the roller bracket 421 to float relative to the mounting groove 7. The lateral preload roller 422 is rotatably mounted on the roller bracket 421. The roller surface of the lateral preload roller 422 always elastically abuts against the side of the steel strip 3, achieving lateral pre-positioning of the steel strip 3. This buffers the steel strip 3 and effectively prevents lateral vibration of the steel strip 3, avoiding impact on edge scraping.

[0026] The scraping assembly 43 is arranged between two adjacent lateral preload rollers 422. The scraping assembly 43 includes two clamping seats 431, which are located on the upper and lower sides of the steel strip 3, respectively. The clamping seats 431 can move up and down relative to the steel strip 3 to clamp and release the steel strip 3. The clamping seats 431 move up and down through a sliding transmission structure. The sliding transmission structure adopts a slider-rail cooperation method, plus a hydraulic cylinder or telescopic rod as the drive. Since it is a conventional technology, the specific structure and working principle of the sliding transmission structure will not be described in detail here. The clamping seat 431 consists of a base 4311 and two moving blocks 4312, with the base slidably connected. On the frame 1, two movable blocks 4312 are slidably disposed on the left and right sides of the base 4311. The distance between the two movable blocks 4312 can be adjusted. The two movable blocks 4312 are moved relative to each other through a sliding transmission structure. The pressure block 432 is integrally formed on the movable block 4312. The side of the pressure block 432 facing the steel strip 3 is the clamping surface. The pressure blocks 432 of the upper and lower clamping seats 431 are staggered. That is, the position of the pressure block 432 of the clamping seat 431 above the steel strip 3 corresponds to the mounting cavity 433 of the lower clamping seat 431, and the position of the pressure block 432 of the lower clamping seat 431 corresponds to the mounting cavity 433 of the upper clamping seat 431.

[0027] The pressure blocks 432 are arranged at intervals along the conveying direction of the steel belt 3, with a gap between adjacent pressure blocks 432, thus forming an installation cavity 433. This allows the installation cavities 433 and pressure blocks 432 on the moving block 4312 to be distributed at intervals along the traveling direction of the steel belt 3. Each installation cavity 433 is equipped with a scraper 434 that can extend and retract left and right. A drive unit is provided between the two moving blocks 4312 of the clamping seat 431. The drive unit has telescopic rods corresponding one-to-one with the scrapers 434. The telescopic ends of the telescopic rods are connected to the scrapers 434, and the scrapers 434 are slidably inserted into the installation cavity 433. Driven by the corresponding telescopic rod, 434 performs telescopic movements. All scrapers 434 can telescopically extend and retract synchronously. The left and right ends of the mounting cavity 433 are open. The blade of the scraper 434 faces the outward opening. The blade of the scraper 434 retracts and extends from the outward opening. When the scraper 434 extends, the blade pushes and scrapes the surface of the steel strip 3. The side of the steel strip 3 usually has burrs that stick up and down. The blade of the scraper 434 extends along the surface of the steel strip 3 to above or below the side of the steel strip 3, thereby scraping off or flattening the sticking burrs. The flattened burrs then extend horizontally in the left and right directions.

[0028] It should be noted that the blade of the scraper 434 is close to the side of the steel strip 3 and adheres tightly to the upper and lower surfaces of the steel strip 3. During operation, the upper and lower clamping seats 431 close, and the pressure block 432 clamps the steel strip 3 in sections. As the steel strip 3 moves, the scraper 434 extends towards the side of the steel strip 3. The sectioned clamping method can effectively suppress the vibration and deviation of the steel strip 3, and can buffer the extension of the steel strip 3 during clamping, preventing the steel strip 3 from wrinkling along its length and ensuring the scraping accuracy. In addition, the blade of the scraper 434 is close to the side of the steel strip 3, which makes the extension and retraction range of the scraper 434 very small, that is, it will not cause obvious scratches on the surface of the steel strip 3 when scraping burrs.

[0029] The scraping assembly 43 also includes a cutting blade 435, which is arranged on the left and right sides of the steel strip 3. The frame 1 is equipped with a linear motor drive 12, and the blade holder 436 is rotatably connected to the output end of the linear motor drive 12. The linear motor drive 12 drives the blade holder 436 to slide back and forth along the traveling direction of the steel strip 3 with the cutting blade 435. On the other hand, the blade holder 436 can be rotated to adjust the angle so that the cutting blade 435 is tilted to fit against the side of the steel strip 3. An elastic element 437 is assembled between the cutting blade 435 and the blade holder 436. The elastic element 437 provides a pre-tightening force for the cutting blade 435 to press against the side of the steel strip 3. After the scraper 434 pushes the burr to the side of the steel strip 3 and extends horizontally, the reciprocating cutting blade 435 scrapes off the horizontal burr on the side of the steel strip 3, completing the secondary trimming. Therefore, the scraper 434 pushes the burr flat, and then the cutting blade 435 scrapes off the burr by sliding back and forth.

[0030] It should be noted that the cutting blade 435 is inclined relative to the side of the steel strip 3. In this way, the cutting blade 435 performs a scraping and shoveling action by sliding back and forth for one stroke. That is, the cutting blade 435 moves in one direction along the length of the steel strip 3 to form a scraping action. The front of the cutting blade 435 scrapes off the burrs. If some burrs are stubborn and do not fall off, the back of the cutting blade 435 scrapes off the stubborn burrs when it moves back in the opposite direction. This scraping and shoveling action is repeated to achieve the purpose of scraping the edge.

[0031] The frame 1 has chip collection grooves 10 on both sides of the steel strip 3 below, and blowers 11 blowing downwards are installed on both sides of the steel strip 3 above. The blowers 11 blow downwards to blow off the metal burrs and chips generated by scraping. The chips fall into the chip collection grooves 10 and are collected in a concentrated manner to prevent the chips from adhering to the surface of the steel strip 3 and to ensure that the surface of the steel strip 3 is clean.

[0032] Working process of this invention: Stainless steel strip 3 is continuously conveyed in the front-to-back direction by strip conveying roller mechanism 2; servo adjustment unit 6 drives base 41 to move left and right, adjusting the position of scraping execution mechanism 4 on both sides according to the actual width of steel strip 3; steel strip 3 enters the scraping station, lateral pre-pressure roller 422 elastically presses against the side of steel strip 3 under the action of roller side elastic element 423, completing lateral pre-positioning; steel strip 3 continues to move to the scraping assembly 43 position, two clamping seats 431 close up and down, pressure block 432 presses steel strip 3 in sections, so that the upper and lower clamping seats 431 clamp and fix steel strip 3, at which time the conveying of steel strip 3 stops; all scrapers 434 extend and retract synchronously, synchronously scraping the burrs near the sides of the surface of steel strip 3, pushing the burrs to the side of steel strip 3; then linear motor drive 12 drives the tool holder 436 and cutting blade 435 to slide back and forth. The cutting blade 435 is inclined and pressed against the side of the steel strip 3 to perform secondary scraping of the burrs on the side of the steel strip 3; the fan 11 blows air downwards, and the debris generated by scraping falls into the chip collection groove 10 for collection; after the scraping is completed, the steel strip 3 continues to be conveyed backwards to enter the next process. Since the steel strip 3 advances in a step-by-step manner, the distance of each advance is the width of one pressure block 432 or the mounting cavity 433. That is, after the clamping seat 431 is released, the steel strip 3 advances another distance of one pressure block. In this way, all the burrs along the length of the steel strip 3 can be pushed flat by the scraper 434 one by one, forming a segmented progressive scraping. This not only can the steel strip 3 be stably clamped, but also improves the scraping efficiency. Compared with the conventional technology of clamping the entire part of the steel strip 3 and scraping it from beginning to end at once, its scraping efficiency is better, and the burrs or burrs are removed more cleanly.

[0033] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A stainless steel strip edge scraping device, characterized in that, Includes a frame (1), on which a strip conveying roller mechanism (2) for conveying steel strip (3) in the front-to-back horizontal direction and scraping execution mechanism (4) symmetrically arranged on the left and right sides of the steel strip (3). The scraping actuator (4) includes a base (41), a pre-pressure roller assembly (42), and a scraping assembly (43). The base (41) is mounted on the frame (1). The pre-pressure roller assembly (42) includes a roller support (421), a lateral pre-pressure roller (422), and a roller-side elastic element (423). The lateral pre-pressure roller (422) is rotatably mounted on the roller support (421). The roller support (421) is floatingly mounted on the base (41) through the roller-side elastic element (423). The base (41) is mounted on the support. The roller surface of the lateral pre-pressure roller (422) is attached to the side of the steel strip (3). The scraping assembly (43) is arranged between two adjacent lateral preload rollers (422) along the traveling direction of the steel strip (3). The scraping assembly (43) includes two clamping seats (431) mounted on the frame (1). The two clamping seats (431) are located above and below the steel strip (3) respectively. The two clamping seats (431) can move up and down relative to the steel strip (3). The clamping seats (431) can move up and down by means of telescopic rods or hydraulic cylinders. Each clamping seat (431) has spaced pressure blocks (432) on its left and right sides along the traveling direction of the steel strip (3). The surface of the pressure block (432) facing the steel strip (3) is the clamping surface. (431) The steel strip (3) is clamped by the clamping surface of the corresponding pressure block (432), and an installation cavity (433) is formed between adjacent pressure blocks (432). Each installation cavity (433) is provided with a retractable scraper (434). The blade of the scraper (434) is close to the side of the steel strip (3) and adheres to the surface of the steel strip (3). The scraper (434) scrapes the burrs on the surface of the steel strip (3) to the side of the steel strip (3) by extending and retracting left and right. The pressure blocks (432) of the upper and lower clamping seats (431) on the same side are staggered so that the installation cavity (433) of one clamping seat (431) on the same side corresponds to the pressure block (432) of the other clamping seat (431). The scraping assembly (43) also includes a cutting blade (435) mounted on the frame (1). The cutting blade (435) is located on the side of the steel strip (3) and can slide back and forth along the direction of travel of the steel strip (3). The cutting blade (435) is inclined relative to the side of the steel strip (3). The cutting edge of the cutting blade (435) is attached to the side of the steel strip (3) so that the cutting blade (435) can scrape off the burrs scraped to the side of the steel strip (3) by the scraper (434) when it slides back and forth.

2. The stainless steel strip (3) scraping device according to claim 1, characterized in that, The frame (1) is provided with a slide rail (5), and the base (41) is provided with a sliding opening that forms a sliding fit with the slide rail (5). The frame (1) is also provided with a servo adjustment unit (6). The drive end of the servo adjustment unit (6) is connected to the base (41) to drive the base (41) to move horizontally left and right relative to the steel strip (3).

3. The stainless steel strip (3) scraping device according to claim 2, characterized in that, Two of the preload roller assemblies (42) form a group. The two preload roller assemblies (42) in the same group are distributed on the same side and at intervals along the traveling direction of the steel strip (3). There are two groups of preload roller assemblies (42), and the two groups of preload roller assemblies are symmetrically distributed on the left and right sides of the steel strip (3).

4. The stainless steel strip (3) scraping device according to claim 3, characterized in that, The two pre-pressing roller groups in the same group are installed on the same base (41) so that the relative distance between the two pre-pressing roller groups can be adjusted.

5. The stainless steel strip (3) scraping device according to claim 1, characterized in that, The base (41) has an installation groove (7) on the side facing the steel strip (3) for the roller bracket (421) to be movably embedded. The back of the roller bracket (421) has a first positioning hole (8), and the bottom of the installation groove (7) has a second positioning hole. The roller side elastic element (423) is located between the first positioning hole (8) and the second positioning hole.

6. The stainless steel strip (3) scraping device according to claim 1, characterized in that, The frame (1) is provided with a tool holder (436), and the cutting tool (435) is movably mounted on the tool holder (436). An elastic element (437) is provided between the cutting tool (435) and the tool holder (436) to provide a preload force for the cutting tool (435) to adhere to the steel strip (3).

7. The stainless steel strip (3) scraping device according to claim 1, characterized in that, The clamping seat (431) includes a base (4311) and two movable blocks (4312). The two movable blocks (4312) are symmetrically distributed on the left and right sides of the base (4311). Both movable blocks (4312) are slidably connected to the base (4311) so that the relative distance between the two movable blocks (4312) can be adjusted. The pressure block (432) is integrally set on the movable block (4312).

8. The stainless steel strip (3) scraping device according to claim 1, characterized in that, The frame (1) is provided with chip collection grooves (10) located below both sides of the steel strip (3), and the frame (1) is provided with downward blowing fans (11) located above both sides of the steel strip (3) so that the fans (11) blow the scraped burrs or debris downward into the chip collection grooves (10), while avoiding the scraped burrs or debris from accumulating on the steel strip (3).

9. A scraping device for stainless steel strip (3) according to claim 6, characterized in that, The frame (1) is provided with a linear motor drive (12), and the tool holder (436) is rotatably connected to the output end of the linear motor drive (12) so that the tool holder (436) can adjust the installation angle relative to the frame (1).

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