A steel coil cutting apparatus

Abstract

The present application relates to steel strip shearing technical field, specifically to a kind of steel coil shearing type cross cutting equipment, including base, base is sequentially installed uncoiler, roller conveyor, longitudinal cutting machine, straightening machine;Uncoiler rotates with coiled steel strip, and pick-up mechanism (including electric telescopic cylinder, seat body, lower pressure roller, shovel plate, can pick up the end of coiled steel strip and tension) is equipped between roller conveyor and uncoiler;Roller conveyor top is equipped with cross cutting machine (including suspension bracket, two-way threaded shaft, rudder, cutter, can cut transversely), and hydraulic cylinder body and pressure disc locking coiled steel strip can also be equipped, uncoiler includes machine table and drive unit with locking seat, and transport mechanism conveying steel coil can also be provided;The present application solves the problem that how to effectively pick up the end of coiled steel strip which is not disclosed in prior art.

Description

Technical Field

[0001] This invention relates to the field of steel strip shearing technology, specifically to a steel coil shearing and cross-cutting device. Background Technology

[0002] In metallurgy, machinery manufacturing, and other fields, steel strip is a key basic material. Its processing requires multiple core technological steps, including uncoiling, cross-cutting, longitudinal cutting, straightening, and oiling. The smooth connection of each process directly affects the processing efficiency and finished product quality. Among these, the shearing process often relies on roller conveyors to ensure the stable transport of the steel strip. However, after the entire roll of steel strip is uncoiled, the ends of the strip are prone to sticking to the bearing surface due to winding stress or its own rigidity, making it difficult for them to enter the conveyor channel of the roller conveyor on their own. Existing technologies related to steel strip shearing have been disclosed in the Chinese patent database (such as patents with authorization announcement numbers CN111545821A and CN221289697U).

[0003] However, the problem with the above-mentioned prior art is that although the existing related technologies (patents CN111545821A and CN221289697U) have designed for the shearing structure and conveying method of steel strip, none of them have disclosed a technical solution for effectively lifting the end of the coiled steel strip. This makes it easy for the coiled steel strip to get stuck or skewed when it enters the shearing roller conveyor, which directly affects the continuous operation of subsequent shearing processes and restricts the overall production efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a steel coil shearing and cross-cutting device to solve the problem that the prior art does not disclose how to effectively lift the ends of coiled steel strips.

[0005] This invention discloses a steel coil shearing cross-cutting device, comprising a base, an uncoiler, a roller conveyor, a slitting machine, and a straightening machine sequentially mounted on the base; a coiled steel strip is mounted on the uncoiler, which can drive the coiled steel strip to rotate; a lifting mechanism is disposed between the roller conveyor and the uncoiler, the lifting mechanism including an electric telescopic cylinder, the top of which is connected to the base to provide power for lifting the base; a lower pressure roller is mounted on the base and connected to a shovel plate; the end of the coiled steel strip can pass through the gap between the lower pressure roller and the base; driven by the electric telescopic cylinder, the upward-moving shovel plate can lift the end of the coiled steel strip, while the downward-moving lower pressure roller can tension the coiled steel strip; the cross-cutting machine is fixed on the top of the roller conveyor and spans the conveying path of the coiled steel strip, used for transverse cutting of the coiled steel strip; the slitting machine is connected to the conveying path of the roller conveyor, used for longitudinal cutting of the coiled steel strip; and the straightening machine is used for straightening the coiled steel strip.

[0006] Specifically, the cross-cutting machine includes a suspension frame, which is mounted on a roller conveyor, and a bidirectional threaded shaft is mounted on the suspension frame. The transmission of the conveyor belt connects the bidirectional threaded shaft to a servo motor, and the servo motor fixed to the suspension frame is used to drive the bidirectional threaded shaft to rotate. The first cutter and the second cutter are slidably connected to the suspension frame, and the first cutter shank and the second cutter shank are respectively threaded to the threaded portions at both ends of the bidirectional threaded shaft, with the threads at both ends rotating in opposite directions. When one side of the first cutter's cutting edge overlaps with one side of the second cutter's cutting edge, there is a gap between the two cutting edges.

[0007] The optimized cross-cutting machine also includes a hydraulic cylinder and a pressure plate; the hydraulic cylinder is mounted on the suspension frame of the cross-cutting machine and is located at the position corresponding to the conveying path of the coiled steel strip; the pressure plate is fixed on the telescopic shaft of the hydraulic cylinder, and the pressure plate is used to squeeze and lock the coiled steel strip on the roller conveyor.

[0008] Specifically, the uncoiler includes two machines, which are located at one end near the roller conveyor. Each machine is equipped with a drive unit, and each drive unit is equipped with a locking seat for locking the left and right sides of the coiled steel strip. The drive unit is used to output power to drive the locked coiled steel strip to rotate.

[0009] More specifically, the drive unit includes a sleeve that is fitted onto the side wall of the machine base. A drive motor on the machine base is connected to the sleeve via a belt to drive the sleeve to rotate. One end of the sleeve is slidably connected to a support column, which moves through the machine base. The other end of the support column is connected to a locking seat, and a buffer spring is connected between the locking seat and the machine base to buffer and reset the locking seat. The other end of the sleeve is slidably engaged with the rod of an electric push rod, and the cylinder of the electric push rod is rotatably connected to the rotating sleeve, which is fixed to the machine base. A limit block is provided on the output shaft of the electric push rod, which can be slidably connected to the limit groove on the sleeve. A hexagonal prism is connected to the end of the rod of the electric push rod, which can be adapted to the hexagonal groove on the support column.

[0010] In an optimized version, the present invention also includes a transport mechanism, which includes a slide rail plate disposed in a groove at the bottom of the base; a movable seat cooperates with the slide rail plate via rollers and can slide along the slide rail plate; at least one electric telescopic rod is connected to the movable seat, the top of the electric telescopic rod is connected to the pallet and is used to drive the pallet to perform lifting and lowering movements; the movable pallet is used to transport the coiled steel strip to the center line between the two locking seats of the uncoiler.

[0011] The beneficial effects of this invention are as follows:

[0012] This invention addresses the problem of existing technologies not disclosing how to effectively lift the end of a coiled steel strip. By setting up a lifting mechanism, an electric telescopic cylinder drives the base, lower pressure roller, and shovel plate to move upward, so that the shovel plate contacts the end of the coiled steel strip and lifts it up. This facilitates the coiled steel strip passing through the gap between the lower pressure roller and the base. Subsequently, the electric telescopic cylinder can drive the shovel plate and lower pressure roller to move downward, allowing the lower pressure roller to complete the tensioning of the coiled steel strip. This effectively achieves the lifting operation of the end of the coiled steel strip, providing convenience for subsequent conveying and processing of the coiled steel strip. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the steel coil shearing and cross-cutting equipment of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the cross-cutting machine of the present invention.

[0015] Figure 3 This is a schematic diagram of the arrangement of the first and second cutters of the present invention.

[0016] Figure 4 This is a schematic diagram of the assembly structure of the hydraulic cylinder body of the present invention.

[0017] Figure 5 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0018] Figure 6 This is a three-dimensional structural diagram of the uncoiler of the present invention.

[0019] Figure 7 This is a schematic diagram of the installation structure of the drive unit of the present invention.

[0020] Figure 8 This is a schematic diagram of the exploded structure of the driving unit of the present invention.

[0021] Figure 9 This is a schematic diagram of the installation structure of the transportation mechanism of the present invention.

[0022] Figure 10 This is a schematic diagram of the installation of the adjustment unit of the present invention.

[0023] Figure 11 This is a partial installation diagram of the adjustment unit of the present invention.

[0024] Figure 12 This is a diagram showing the usage state of the adjustment unit of the present invention.

[0025] Figure 13 This is a schematic diagram of the optimized installation structure of the adjustment unit of the present invention.

[0026] In the diagram, 1. Base; 2. Roller conveyor; 3. Slitting machine; 4. Straightening machine; 5. Coiled steel strip; 6. Suspension frame; 7. Double-threaded shaft; 8. Steering motor; 9. First cutter; 10. Second cutter; 11. Conveyor belt; 12. Hydraulic cylinder; 13. Pressure plate; 14. Electric telescopic cylinder; 15. Seat; 16. Lower pressure roller; 17. Shovel plate; 18. Machine platform; 19. Locking seat; 20. Sleeve; 21. Drive motor; 22. Belt; 23. Support column; 24. Buffer spring; 5. Electric push rod; 26. Rotating sleeve; 27. Limiting block; 28. Hexagonal prism; 29. ​​Hexagonal groove; 30. Limiting groove; 31. Slide rail plate; 32. Groove; 33. Moving seat; 34. Roller; 35. Electric telescopic rod; 36. Tray; 37. Right adjusting arm; 38. Second spring; 39. Trigger seat; 40. First spring; 41. Pressure plate; 42. Flipping plate; 43. Rod body; 44. Pull arm; 45. Left adjusting arm; 46. Transmission gear; 47. Left gear plate; 48. Right gear plate. Detailed Implementation

[0027] To clearly understand the technical solution of this application, the following will describe in detail a steel coil shearing and cross-cutting device provided by this application in conjunction with specific embodiments and accompanying drawings.

[0028] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two.

[0029] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "one embodiment," "some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0030] Example 1: This example provides a steel coil shearing and cross-cutting device, refer to... Figure 1The diagram shows the overall structure of a steel coil shearing and cross-cutting equipment. As can be seen, the equipment includes a base 1, which provides the mounting foundation for all components. The uncoiler, roller conveyor 2, slitting machine 3, and straightener 4 are installed on the base 1 from right to left (the slitting machine 3 and straightener 4 can be readily available commercial products and will not be described further here). The coiled steel strip 5 is mounted on the uncoiler, which drives the coiled steel strip 5 to rotate. A lifting mechanism is located between the roller conveyor 2 and the uncoiler, enabling the uncoiler to drive the coiled steel strip 5 to rotate. At this time, the end of the coiled steel strip 5 is lifted up; the lifted end of the coiled steel strip 5 extends to the cross-cutting machine on the roller conveyor 2. The cross-cutting machine is fixed on the top of the roller conveyor 2 and spans across the conveying path of the coiled steel strip 5, and is used to cut the coiled steel strip 5 laterally; the coiled steel strip 5 after being cut by the cross-cutting machine is conveyed to the longitudinal cutting machine 3 via the roller conveyor 2; the longitudinal cutting machine 3 is connected to the conveying path of the roller conveyor 2, and is used to cut the coiled steel strip 5 longitudinally; the coiled steel strip 5 after longitudinal cutting is then conveyed to the straightening machine 4, and the straightening machine 4 straightens the coiled steel strip 5.

[0031] For details, please refer to Figure 2 The diagram shows a three-dimensional structural schematic of a cross-cutting machine. As can be seen, the machine includes a suspension frame 6, the bottom of which is fixed to both sides of the roller conveyor 2. A bidirectional threaded shaft 7 is mounted on the suspension frame 6, and a servo motor 8 fixed on the suspension frame 6 is connected to the bidirectional threaded shaft 7 to drive its rotation. A first cutter 9 and a second cutter 10 are slidably connected to the suspension frame 6. The shanks of the first cutter 9 and the second cutter 10 are respectively threaded to the threads at both ends of the bidirectional threaded shaft 7. The threads at both ends of the bidirectional threaded shaft 7 rotate in opposite directions, allowing the first cutter 9 and the second cutter 10 to move in opposite or relative directions when the bidirectional threaded shaft 7 rotates. The cutting edge of the first cutter 9 is located on one side, and the cutting edge of the second cutter 10 is located on one side. When the cutting edges of the first cutter 9 and the second cutter 10 overlap, there is a gap s1 between them (e.g., ...). Figure 3 The diagram shows the arrangement of the first cutter 9 and the second cutter 10; the two ends of the conveyor belt 11 are respectively connected to the adjacent ends of the bidirectional threaded shaft 7 and the output shaft of the servo motor 8.

[0032] Based on the above connections, the working principle of the cross-cutting machine is as follows:

[0033] When the cross-cutting machine is in use, the servo motor 8 is started, which drives the bidirectional threaded shaft 7 to rotate via the conveyor belt 11. Since the threads at both ends of the bidirectional threaded shaft 7 rotate in opposite directions, and the shanks of the first cutter 9 and the second cutter 10 are respectively threaded to the two ends of the bidirectional threaded shaft 7, the first cutter 9 and the second cutter 10 will move in opposite or opposite directions when the bidirectional threaded shaft 7 rotates. When cutting is required, the servo motor 8 is controlled to move the first cutter 9 and the second cutter 10 relative to each other. The gap s1 that exists when the blades of the two overlap is used to perform transverse cutting on the material conveyed on the roller conveyor 2. After cutting is completed, the bidirectional threaded shaft 7 can rotate in the opposite direction, driving the first cutter 9 and the second cutter 10 to move back to their original positions in the opposite direction, in preparation for the next cutting.

[0034] The present invention, by setting up a cross-cutting machine, has the following beneficial effects:

[0035] The present invention can drive the bidirectional threaded shaft 7 to rotate via the servo motor 8. By means of the opposite threads at both ends of the bidirectional threaded shaft 7, the first cutter 9 and the second cutter 10 are driven to move in opposite or opposite directions, thereby adjusting the relative position and blade clearance of the first cutter 9 and the second cutter 10, and thus adapting to the shearing requirements of coiled steel strips 5 of different specifications.

[0036] In actual scenarios where a cross-cutting machine is used to cut coiled steel strip 5, the coiled steel strip 5 is prone to slippage along its length or width in the cutting area due to factors such as fluctuations in the tension of the coiled steel strip 5 itself, uneven friction of the conveyor rollers, and the impact force at the moment of cutting. This slippage problem not only causes the cutting dimensions of the coiled steel strip 5 to deviate from the design tolerance, but may also cause quality defects such as rough cut edges and curled edges of the coiled steel strip 5. In severe cases, the machine needs to be stopped to adjust the position of the coiled steel strip 5, significantly reducing production efficiency.

[0037] To effectively solve the slippage problem during the cutting of the coiled steel strip 5, this embodiment proposes a targeted technical solution as an optimization: (Refer to...) Figure 4 The diagram shows the assembly structure of the hydraulic cylinder 12. As can be seen from the diagram, the hydraulic cylinder 12 is installed on the suspension frame 6 of the cross-cutting machine at the position corresponding to the conveying path of the coiled steel strip 5. A pressure plate 13 is fixed on the telescopic shaft of the hydraulic cylinder 12. The pressure plate 13 is used to squeeze and lock the coiled steel strip 5 on the roller conveyor 2. The hydraulic cylinder 12 is a mature existing product, and the stable output force of the existing hydraulic cylinder 12 can be used to achieve precise pressing and limiting of the coiled steel strip 5.

[0038] For details, please refer to Figure 5The diagram shows a three-dimensional structural schematic of the lifting mechanism. As can be seen from the diagram, the lifting mechanism includes an electric telescopic cylinder 14, the top of which is connected to the base 15, providing power for the lifting and lowering of the base 15. A lower pressure roller 16 is installed on the base 15, and a shovel plate 17 is connected to the base 15. Driven by the electric telescopic cylinder 14, the base 15 can drive the lower pressure roller 16 and the shovel plate 17 to move upward, so that the shovel plate 17 contacts the end of the coiled steel strip 5 and lifts the end. At this time, the gap between the lower pressure roller 16 and the base 15 is opposite to the end of the lifted coiled steel strip 5, so as to facilitate the coiled steel strip 5 to pass through the gap. After the end of the coiled steel strip 5 is lifted and passes through the gap between the lower pressure roller 16 and the base 15, the electric telescopic cylinder 14 drives the shovel plate 17 and the lower pressure roller 16 to move downward, and the lower pressure roller 16 can complete the tensioning of the coiled steel strip 5.

[0039] The present invention, by setting up a lifting mechanism, has the following beneficial effects:

[0040] This invention addresses the problem of existing technologies not disclosing how to effectively lift the end of a coiled steel strip 5. By setting up a lifting mechanism, an electric telescopic cylinder 14 drives the base 15, lower pressure roller 16, and shovel plate 17 to move upward, causing the shovel plate 17 to contact the end of the coiled steel strip 5 and lift that end. This facilitates the coiled steel strip 5 passing through the gap between the lower pressure roller 16 and the base 15. Subsequently, the electric telescopic cylinder 14 can drive the shovel plate 17 and lower pressure roller 16 to move downward, allowing the lower pressure roller 16 to complete the tensioning of the coiled steel strip 5. This effectively achieves the lifting operation of the end of the coiled steel strip 5, providing convenience for the subsequent conveying and processing of the coiled steel strip 5.

[0041] For details, please refer to Figure 6 The diagram shows a three-dimensional structural schematic of the uncoiler. As can be seen, the uncoiler includes two machine bases 18, located on either side of the right end near the roller conveyor 2. These machine bases 18 serve as stable support carriers, providing the mounting foundation for the drive units. Each machine base 18 is equipped with a drive unit (i.e., a drive source), and each drive unit is equipped with a locking seat 19. The left and right sides of the coiled steel strip 5 are respectively fitted with the locking seats 19 of the two drive units, thereby effectively locking the left and right sides of the coiled steel strip 5. Simultaneously, the two drive units can output power, thereby driving the locked coiled steel strip 5 to rotate, meeting the corresponding process operation requirements. A more detailed structure of the drive unit is shown below.

[0042] refer to Figure 7-8 ,in, Figure 7 The diagram shown is a schematic of the installation structure of the drive unit, while Figure 8The diagram shows the exploded structure of the drive unit. As can be seen from the two figures above, the drive unit includes a sleeve 20, which is rotatably connected to the side wall of the machine base 18. The power shaft of the drive motor 21 is connected to the sleeve 20 via a belt 22, allowing the drive motor 21 to rotate the sleeve 20. The drive motor 21 is mounted on the machine base 18. One end of the sleeve 20 is slidably connected to a support column 23, which movably passes through the machine base 18. The other end of the support column 23 is connected to a locking seat 19, and a buffer spring 24 connects the locking seat 19 to the machine base 18. The buffer spring 24 can buffer and reset the locking seat 19; the other end of the sleeve 20 is slidably engaged with the rod of the electric push rod 25, the cylinder of the electric push rod 25 is rotatably connected to the rotating sleeve 26, and the rotating sleeve 26 is fixed to the machine base 18; a limit block 27 is formed on the output shaft of the electric push rod 25, which is slidably connected with the limit groove 30 on the sleeve 20 to limit the relative rotation between the electric push rod 25 and the sleeve 20; a hexagonal prism 28 is connected to the end of the rod of the electric push rod 25, which is adapted to the hexagonal groove 29 on the support column 23 to achieve a locking engagement between the two.

[0043] The working principle of the drive unit is as follows:

[0044] When the coiled steel strip 5 needs to be locked and rotated, the electric push rod 25 is activated, and its rod moves along the sleeve 20 towards the support column 23, driving the locking seat 19 to move towards the corresponding side of the coiled steel strip 5 until the hexagonal prism 28 and the hexagonal groove 29 form a locking engagement. At the same time, the central axis of the locking seat 19 is inserted into the center of the coiled steel strip 5. Then, the drive motor 21 is activated, which drives the sleeve 20 to rotate through the belt 22. Because the engagement of the limit block 27 and the limit groove 30 restricts the relative rotation between the electric push rod 25 and the sleeve 20, and the hexagonal prism 28 and the hexagonal groove 29 are locked, the sleeve 20 can sequentially drive the electric push rod 25, the support column 23, and the locking seat 19 to rotate together (during this process, the electric push rod 25 rotates synchronously within the rotating sleeve 26), thereby driving the coiled steel strip 5 to rotate.

[0045] When the coiled steel strip 5 is used up, the rod of the electric push rod 25 retracts, the hexagonal prism 28 and the hexagonal slot 29 disengage, and the buffer spring 24 drives the locking seat 19 to reset. At this time, even if the drive motor 21 rotates unexpectedly, since the hexagonal prism 28 and the hexagonal slot 29 have disengaged and cannot transmit torque, the coiled steel strip 5 and the electric push rod 25 will not rotate, thus preventing accidents from occurring at the source.

[0046] In Example 2, a problem arises when locking and rotating the coiled steel strip 5: before locking the coiled steel strip 5 via the uncoiler's drive source, it needs to be precisely transported to a designated position using a conveying mechanism to ensure the smooth execution of subsequent locking and other operations. To solve this problem, see [link to example]. Figure 1 This embodiment further designs a transport mechanism, which is used to transport the coiled steel strip 5 to the centerline between the two locking seats 19, providing precise transport assurance for the subsequent operation of locking the coiled steel strip 5 and driving its rotation through components such as a drive source. The specific scheme of the transport mechanism is as follows.

[0047] refer to Figure 9 The diagram shows the installation structure of the transportation mechanism. As can be seen from the diagram, the transportation mechanism includes a slide rail plate 31. The slide rail plate 31 is installed in the groove 32 at the bottom of the base 1. The movable seat 33 cooperates with the slide rail plate 31 through rollers 34 and can slide along the slide rail plate 31. In this embodiment, four electric telescopic rods 35 are provided. The bottom of the electric telescopic rods 35 is connected to the movable seat 33 and the top is connected to the tray 36, which can drive the tray 36 to move up and down.

[0048] In Example 3, after the coiled steel strip 5 is placed on the pallet 36 of the transport mechanism, a key positioning problem arises: the coiled steel strip 5 is easily affected by factors such as hoisting accuracy during placement, resulting in deviations in its actual position on the pallet 36. This deviation directly affects the subsequent docking with the uncoiler. One of the core functions of the transport mechanism is to move upwards and accurately deliver the coiled steel strip 5 between the two locking seats 19 of the uncoiler. If the position of the coiled steel strip 5 is offset, the locking seats 19 may not be able to clamp and fix the coiled steel strip 5 smoothly, affecting the start-up efficiency of the uncoiling operation.

[0049] To address the aforementioned positional deviation of the coiled steel strip 5 on the pallet 36 and ensure accurate placement between the two locking seats 19 of the uncoiler during upward movement of the transport mechanism, this embodiment further optimizes the transport mechanism in Embodiment 2. An adjustment unit is added to the original transport mechanism and connected to the pallet 36. This optimized transport mechanism (i.e., the adjustment unit) also allows for fine-tuning of the coiled steel strip 5 on the pallet 36, effectively correcting the initial positional deviation. The specific structure of the adjustment unit is as follows.

[0050] refer to Figure 10-11 ,in, Figure 10 The diagram shown is an installation schematic of the adjustment unit. Figure 11The diagram shows a partial installation schematic of the adjustment unit. As can be seen, the adjustment unit includes a right adjusting arm 37, whose sliding part is slidably connected to the right side of the outer wall of the tray 36. A second spring 38 connects the right adjusting arm 37 to a bracket on the tray 36. The holding part of the right adjusting arm 37 can apply a pushing force to the adjacent side wall of the steel coil to achieve fine-tuning of one side of the coiled steel strip 5. A trigger seat 39 extends through the top of the tray 36 and is slidably connected to the tray 36. A first spring 40 connects the tray 36 and the trigger seat 39, allowing the trigger seat 39 to slide relative to the tray 36, and the first spring 40 provides a restoring force for the trigger seat 39. A pressure plate 41 is fixed on the trigger seat 39; a flip plate 42 is provided on one side of the pressure plate 41, and the flip plate 42 is rotatably connected to the bottom of the tray 36 via a rod 43. The pressure plate 41 and the flip plate 42 can form an abutting fit (that is, when the pressure plate 41 moves down, it can press against the flip plate 42 to make it flip); the other end of the flip plate 42 is hinged to the pull arm 44, and the other end of the pull arm 44 is hinged to the right adjusting arm 37, thus forming a transmission link from the pressure plate 41 to the right adjusting arm 37. (Reference) Figure 12 The diagram shows the usage state of the adjustment unit. When the coiled steel strip 5 falls on the top arc surface of the tray 36, the weight of the coiled steel strip 5 will press against the trigger seat 39, causing the pressure plate 41 to move downward with the trigger seat 39 (at this time, the first spring 40 is compressed and deformed); the pressure plate 41 presses down on the flip plate 42, causing the flip plate 42 to flip along a set direction (such as direction a); after the flip plate 42 flips, it drives the right adjustment arm 37 to move towards the tray 36 through the hinged pull arm 44 (such as direction b, at this time the second spring 38 is stretched and deformed). Once the coiled steel strip 5 is fully in contact with the pallet 36, the right adjusting arm 37 is positioned precisely to abut against the right end of the coiled steel strip 5, which is centered on the pallet 36. It is worth noting that the right adjusting arm 37 only serves to pre-designate the centering position of the coiled steel strip 5: if the coiled steel strip 5 is initially close to the right adjusting arm 37, the right adjusting arm 37 can assist in moving the coiled steel strip 5 to the centering position during its movement; if the coiled steel strip 5 is initially far from the right adjusting arm 37, after the right adjusting arm 37 moves to the designated position, external force is used to move the coiled steel strip 5 to contact the right adjusting arm 37.

[0051] The present invention has the following beneficial effects by setting an adjustment unit for the transport mechanism: The present invention can use the gravity of the coiled steel strip 5 to trigger the transmission, drive the right adjustment arm 37 to move, realize the fine adjustment of the position of the coiled steel strip 5 on the pallet 36, effectively correct the initial placement deviation, ensure that it can be accurately transported to the two locking seats 19 of the uncoiler, and ensure the start-up efficiency of the uncoiling operation.

[0052] The right adjusting arm 37 of the aforementioned adjusting unit only serves to "pre-designate the centering position of the coiled steel strip 5"; to ensure that the adjusting unit can assist both ends of the coiled steel strip 5 in moving simultaneously to the centering position when the centering position of the coiled steel strip 5 is designated, as an optimization scheme, the adjusting unit is further optimized as follows: (Refer to...) Figure 13 The diagram shows the optimized installation structure of the adjustment unit. As can be seen from the diagram, the adjustment unit also includes a left adjustment arm 45. The sliding part of the left adjustment arm 45 is slidably connected to the left side of the tray 36. The left adjustment arm 45 and the right adjustment arm 37 are arranged opposite to each other. A transmission gear 46 is rotatably connected to the tray 36 between the left adjustment arm 45 and the right adjustment arm 37. The two sides of the transmission gear 46 are respectively meshed with the left toothed plate 47 and the right toothed plate 48. The left toothed plate 47 is fixedly connected to the left adjustment arm 45, and the right toothed plate 48 is fixedly connected to the right adjustment arm 37. Through the above connection, when the right adjustment arm 37 moves, the left adjustment arm 45 and the right adjustment arm 37 can move closer to each other by means of the meshing transmission between the toothed plate and the transmission gear 46, thereby assisting in the movement and centering of the coiled steel strip 5.

[0053] The present invention has the following beneficial effects by setting up an optimized adjustment unit: when the right adjusting arm 37 moves, the left and right adjusting arms move closer to each other synchronously by means of the meshing transmission of the toothed plate and the transmission gear 46, which helps the two ends of the coiled steel strip 5 to move towards the centering position at the same time, achieving centering more efficiently and accurately, further ensuring the accuracy of subsequent docking with the uncoiler, and improving the start-up efficiency of the uncoiling operation.

Claims

1. A steel coil shearing and cross-cutting device, characterized in that: The system includes a base, an uncoiler, a roller conveyor, a slitting machine, and a straightening machine, all sequentially mounted on the base. The coiled steel strip is mounted on the uncoiler, which drives the coiled steel strip to rotate. A lifting mechanism is located between the roller conveyor and the uncoiler. The lifting mechanism includes an electric telescopic cylinder, the top of which is connected to the base to provide power for lifting the base. A lower pressure roller is mounted on the base and connected to a shovel plate. The end of the coiled steel strip passes through the gap between the lower pressure roller and the base. Driven by the electric telescopic cylinder, the upper... The moving shovel can lift the end of the coiled steel strip, while the downward-moving pressure roller can tension the coiled steel strip; the cross-cutting machine is fixed on top of the roller conveyor and spans across the coiled steel strip conveying path, and is used to cut the coiled steel strip transversely; the slitting machine is connected to the conveying path of the roller conveyor and is used to cut the coiled steel strip longitudinally; the straightening machine is used to straighten the coiled steel strip; it also includes a transport mechanism, a moving pallet for transporting the coiled steel strip to the centerline between the two locking seats of the uncoiler; The transport mechanism includes an adjustment unit connected to the pallet; the adjustment unit includes a right adjustment arm, the sliding part of which is slidably connected to the right side of the outer wall of the pallet, and a second spring connecting the right adjustment arm to a bracket on the pallet; the holding part of the right adjustment arm applies a pushing force to the adjacent side wall of the steel coil; a trigger seat penetrates the top of the pallet and is slidably connected to the pallet, with a first spring connecting the pallet and the trigger seat; a pressure plate is fixed on the trigger seat; a flip plate is provided on one side of the pressure plate, and the flip plate is rotatably connected to the bottom of the pallet via a rod, with the pressure plate and the flip plate forming an abutment fit; the other end of the flip plate is hinged to a pull arm, and the other end of the pull arm is hinged to the right adjustment arm; when the coiled steel strip falls onto the top arc surface of the pallet... The weight of the coiled steel strip presses against the trigger seat, causing the pressure plate to move downward with the trigger seat; the pressure plate presses down on the flip plate, causing the flip plate to flip; after the flip plate flips, it drives the right adjusting arm to move towards the pallet through the hinged pull arm; when the coiled steel strip is in complete contact with the pallet, the right adjusting arm abuts against the right end of the coiled steel strip centered on the pallet; the adjusting unit also includes a left adjusting arm, the sliding part of the left adjusting arm is slidably connected to the left side of the pallet, and the left adjusting arm is opposite to the right adjusting arm; a transmission gear is rotatably connected on the pallet between the left and right adjusting arms, and the two sides of the transmission gear are respectively meshed with the left tooth plate and the right tooth plate, and the left tooth plate is fixedly connected to the left adjusting arm, and the right tooth plate is fixedly connected to the right adjusting arm; The uncoiler comprises two machine sets located near one end of the roller conveyor. Each machine set is equipped with a drive unit, and each drive unit has a locking seat for locking the left and right sides of the coiled steel strip. The drive unit outputs power to rotate the locked coiled steel strip. The drive unit includes a sleeve that is rotatably connected to the side wall of the machine set. A drive motor on the machine set is connected to the sleeve via a belt to drive the sleeve to rotate. One end of the sleeve is slidably connected to a support column that movably passes through the machine set. The other end of the support column is connected to the locking seat. A buffer spring is connected between the locking seat and the machine set to buffer and reset the locking seat. The other end of the sleeve is slidably engaged with the rod of an electric push rod. The cylinder of the electric push rod is rotatably connected to a rotating sleeve, which is fixed to the machine set. A limit block is provided on the output shaft of the electric push rod, and the limit block is slidably connected to a limit groove on the sleeve. The end of the rod of the electric push rod is connected to a hexagonal prism, which is adapted to a hexagonal groove on the support column.

2. The steel coil shearing and cross-cutting equipment according to claim 1, characterized in that: The cross-cutting machine includes a suspension frame, which is mounted on a roller conveyor. A bidirectional threaded shaft is mounted on the suspension frame. The transmission of the conveyor belt connects the bidirectional threaded shaft to a servo motor. The servo motor, which is fixed to the suspension frame, is used to drive the bidirectional threaded shaft to rotate. A first cutter and a second cutter are slidably connected to the suspension frame. The shank of the first cutter and the shank of the second cutter are respectively threaded to the threaded portions at both ends of the bidirectional threaded shaft, and the threads at both ends rotate in opposite directions. When one side of the first cutter's cutting edge overlaps with one side of the second cutter's cutting edge, there is a gap between the two cutting edges.

3. The steel coil shearing and cross-cutting equipment according to claim 2, characterized in that: It also includes a hydraulic cylinder and a pressure plate; the hydraulic cylinder is mounted on the suspension frame of the cross-cutting machine and is located at the position corresponding to the conveying path of the coiled steel strip; the pressure plate is fixed on the telescopic shaft of the hydraulic cylinder, and the pressure plate is used to squeeze and lock the coiled steel strip on the roller conveyor.

4. The steel coil shearing and cross-cutting equipment according to claim 1, characterized in that: The transport mechanism includes a slide rail plate, which is set in a groove at the bottom of the base; a movable seat is equipped with rollers that cooperate with the slide rail plate and can slide along the slide rail plate; at least one electric telescopic rod is connected to the movable seat, and the top of the electric telescopic rod is connected to the pallet to drive the pallet to move up and down.

Images