A slitting machine capable of automatic tool change

Abstract

The application relates to an automatic blade-changing longitudinal shearing machine, and relates to the technical field of longitudinal shearing machines.The longitudinal shearing machine comprises a blade-changing mechanism and a shearing mechanism on a rack, the shearing mechanism is in two groups and is connected with the blade-changing mechanism, the rack is provided with a shearing station, and the blade-changing mechanism drives each group of shearing mechanisms to move to the shearing station one by one.The shearing mechanism comprises a driving piece and two groups of shearing assemblies, the driving piece is arranged on the blade-changing mechanism, each group of shearing assemblies comprises a rotating roller, a blade and an elastic piece, the two groups of rotating rollers are arranged on the blade-changing mechanism, the two groups of rotating rollers are oppositely arranged and are connected with the driving piece, the blade is arranged on the rotating roller, the rotating roller is provided with an inner sleeve, the inner sleeve is arranged between adjacent blades, the elastic piece is arranged on the inner sleeve, and the two groups of elastic pieces abut against a steel belt.Through the arrangement of the elastic pieces, the steel belt is extruded and supported, irregular vibration of the steel belt caused by suspension is reduced, noise intensity generated when the steel belt is sheared is reduced, and the working environment of the longitudinal shearing machine is improved.

Description

Technical Field

[0001] This application relates to the field of slitting machine technology, and in particular to a slitting machine with automatic blade changing capability. Background Technology

[0002] The automatic blade-changing slitting machine is a core piece of equipment for steel strip finishing, applied in the fields of steel strip manufacturing and deep processing. Its working principle is as follows: after the steel strip is conveyed and positioned, the cutter shaft drives the blades to complete the slitting of the wide steel strip, which is then coiled into narrow strips by the winding mechanism. The automatic blade-changing function is achieved through a preset blade magazine, servo drive, and high-precision positioning system, allowing for the selection and calibration of blades as needed, adapting to various processing requirements.

[0003] In existing technology, steel strips are precisely sheared by several blades arranged on a rotating roller, resulting in multiple strips of the required width. However, during the shearing process, the high-frequency vibrations generated between the blades and the steel strip due to the shearing force produce noise, and the noise intensity increases with the width of the steel strip. For steel strips with larger shearing widths, the irregular vibrations generated during shearing produce a significant amount of noise, resulting in a poor working environment for the slitting machine. Utility Model Content

[0004] In order to reduce the noise intensity generated during steel strip shearing and improve the working environment of the slitting machine, this application provides a slitting machine with automatic blade changing.

[0005] This application provides an automatic blade-changing slitting machine with the following technical solution: An automatic blade-changing slitting machine includes a blade-changing mechanism and a shearing mechanism. The blade-changing mechanism and the shearing mechanism are mounted on a frame. The number of shearing mechanisms is at least two sets, and each set of shearing mechanisms is connected to the blade-changing mechanism. The frame is provided with shearing stations for the operation of the shearing mechanisms. The blade-changing mechanism can drive each set of shearing mechanisms to move to the shearing station one by one. The shearing mechanism includes a driving component and two sets of shearing components. The driving component is mounted on the blade-changing mechanism. Each set of shearing components includes a rotating roller, a blade, and an elastic element. The two sets of rotating rollers are mounted on the blade-changing mechanism, and the two sets of rotating rollers are arranged opposite to each other and connected to the driving component. The blade is mounted on the rotating roller. The rotating roller is provided with an inner sleeve, which is located between two adjacent blades. The elastic element is mounted on the inner sleeve. The two sets of elastic elements can abut against the steel strip in the shearing state.

[0006] By adopting the above technical solution, when the steel strip enters the slitting machine for shearing, the drive unit drives two sets of oppositely arranged rotating rollers to rotate, causing the oppositely arranged blades to shear the steel strip into strips. The elastic element continuously applies compressive force to both sides of the steel strip during the shearing process. When changing blades, the blade changing mechanism can move the worn shearing mechanism out of the shearing station and move another set of spare shearing mechanisms to the shearing station to continue operation. Compared with the prior art, this application reduces the irregular vibration of the steel strip caused by suspension by setting up elastic elements to compress and support the steel strip between the blades, thereby reducing the noise intensity generated by the steel strip during shearing and improving the working environment of the slitting machine.

[0007] Preferably, an outer sleeve is coaxially provided on the inner sleeve, the outer diameter of the outer sleeve is less than or equal to the outer diameter of the blade, the outer sleeve is connected to the inner sleeve through the elastic element, and the elastic element can abut the outer sleeve against the surface of the steel strip.

[0008] By adopting the above technical solution, the outer sleeve is fitted on the rotating roller, and the elastic element can press the outer sleeve against the surface of the steel strip, so that the outer sleeve can exert continuous and uninterrupted extrusion force on the steel strip when the steel strip is sheared, thereby improving the stability of the extrusion of the elastic element.

[0009] Preferably, the elastic element includes a plurality of telescopic springs, which are evenly arranged along the circumference of the inner sleeve. One end of each telescopic spring is connected to the inner sleeve, and the other end of each telescopic spring is connected to the outer sleeve.

[0010] By adopting the above technical solution and utilizing several circumferentially arranged telescopic springs, the springs rebound more quickly during the rotation of the rotating shaft, making them more durable and avoiding frequent replacements that could affect production, thus improving the reliability of the slitting machine.

[0011] Preferably, multiple sets of the telescopic springs are spaced apart along the axial direction of the inner sleeve, and each telescopic spring is arranged radially along the inner sleeve.

[0012] By adopting the above technical solution, and using a structure in which multiple sets of telescopic springs are arranged along the axial direction of the inner sleeve and radially, the compressive force applied by the telescopic springs to various positions of the outer sleeve remains relatively consistent, thereby improving the stability of the compressive force applied to the outer sleeve.

[0013] Preferably, the outer sleeve is provided with a plurality of bolts, each bolt corresponding to a telescopic spring and fixedly connected to the telescopic spring, and the bolts are threadedly connected to the outer sleeve.

[0014] By adopting the above technical solution, the extension and retraction of the telescopic spring can be adjusted by using bolts to adjust the compressive force applied by the telescopic spring to the outer sleeve, thereby improving the adaptability of the telescopic spring to different working conditions.

[0015] Preferably, the frame is provided with a linear drive mechanism, which is connected to the tool changing mechanism. The linear drive mechanism can drive the tool changing mechanism to slide out and into the shearing station, so that each set of shearing mechanisms can switch positions outside the shearing station.

[0016] By adopting the above technical solution, the linear drive mechanism slides the shearing mechanism out of the shearing station, the tool changing mechanism switches to the next set of shearing mechanisms, and the linear drive mechanism then slides the shearing mechanism back into the shearing station, thus avoiding affecting the normal operation of other equipment and improving the convenience of automatic tool changing of the slitting machine.

[0017] Preferably, the tool changing mechanism includes a first rotary motor and a first rotary shaft. The first rotary motor is mounted on the linear drive mechanism, and the first rotary shaft is rotatably mounted on the linear drive mechanism. The first rotary motor is connected to the first rotary shaft, and the first rotary shaft is connected to each group of shearing mechanisms. The first rotary motor can drive each group of shearing mechanisms to rotate.

[0018] By adopting the above technical solution, the first rotating motor rotates the shearing mechanism outside the shearing station to achieve automatic blade changing, which effectively reduces the time for operators to change blades and improves the working efficiency of blade changing in the slitting machine.

[0019] Preferably, the two sets of oppositely arranged blades are staggered and fitted together.

[0020] By adopting the above technical solution, the blades on both sides of the steel strip are staggered and attached. The compression of the two sets of blades causes local stress concentration at the shearing part of the steel strip, which causes the blades to break and separate the steel strip, thus improving the efficiency of the blades in shearing the steel strip.

[0021] 1. When the steel strip enters the slitting machine for shearing, the drive unit drives two sets of oppositely arranged rotating rollers to rotate, causing the oppositely arranged blades to shear the steel strip into slits. The elastic element continuously applies compressive force to both sides of the steel strip during the shearing process. When changing blades, the blade changing mechanism can move the worn shearing mechanism out of the shearing station and move another set of spare shearing mechanisms to the shearing station to continue operation. Compared with the prior art, this application reduces the irregular vibration of the steel strip caused by suspension by setting up an elastic element to compress and support the steel strip between the blades, thereby reducing the noise intensity generated by the steel strip during shearing and improving the working environment of the slitting machine.

[0022] 2. The outer sleeve is fitted onto the rotating roller, and the elastic element can press the outer sleeve against the surface of the steel strip, so that the outer sleeve can exert continuous and uninterrupted extrusion force on the steel strip when the steel strip is sheared, thereby improving the stability of the extrusion by the elastic element.

[0023] 3. With several circumferentially arranged telescopic springs, the springs rebound more quickly during the rotation of the rotating shaft, making them more durable and avoiding frequent replacements that could affect production, thus improving the reliability of the slitting machine. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a slitting machine with automatic blade changing according to an embodiment of this application.

[0025] Figure 2 This is a top view showing the slitting machine.

[0026] Figure 3 It is along Figure 2 A cross-sectional view along line AA in the middle.

[0027] Figure 4 It is along Figure 2 A cross-sectional view along the BB line.

[0028] Figure 5 yes Figure 4 Enlarged view of section C.

[0029] Explanation of reference numerals in the attached drawings: 1. Tool changing mechanism; 11. First rotating motor; 12. First rotating shaft; 13. Rectangular cylinder; 131. Flange; 132. Flange sleeve; 2. Shearing mechanism; 3. Driving component; 31. Second rotating motor; 32. Driving gear; 33. Driven gear; 4. Shearing assembly; 41. Rotating roller; 411. Slide groove; 412. Slider; 42. Blade; 43. Elastic component; 44. Telescopic spring; 45. Inner sleeve; 46. Outer sleeve; 461. Fixing bolt; 47. Fixing component; 5. Frame; 51. Shearing station; 6. Linear drive mechanism; 61. Linear drive hydraulic cylinder; 62. Tool changing base; 63. Guide rail. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0031] This application discloses a slitting machine with automatic blade changing.

[0032] Reference Figure 1An automatic blade-changing slitting machine includes a blade-changing mechanism 1 and a shearing mechanism 2. The blade-changing mechanism 1 and the shearing mechanism 2 are mounted on a frame 5. There are two sets of shearing mechanisms 2, each set of which is connected to the blade-changing mechanism 1. The frame 5 is provided with a shearing station 51 for the operation of the shearing mechanisms 2. The blade-changing mechanism 1 can gradually drive each set of shearing mechanisms 2 to move to the shearing station 51. The shearing mechanism 2 includes a driving component 3 and two sets of shearing components 4. One set of shearing components 4 is currently in use, and the other set of shearing components 4 is for backup. Each set of shearing components 4 includes a rotating roller 41, a blade 42, and an elastic element 43. The two sets of rotating rollers 41 are arranged opposite to each other and are connected to the driving component 3. The blade 42 is mounted on the rotating roller 41, and the rotating roller 41 is provided with an inner sleeve 45 (see reference). Figure 3 The inner sleeve 45 is positioned between two adjacent blades 42, and the elastic element 43 is positioned on the inner sleeve 45. The two sets of elastic elements 43 abut against the steel strip. By setting the elastic element 43 to compress and support the steel strip between the blades 42, the irregular vibration of the steel strip caused by suspension is reduced, thereby reducing the noise intensity generated by the steel strip during shearing and improving the working environment of the slitting machine.

[0033] Reference Figure 1 , Figure 2 The frame 5 is equipped with a linear drive mechanism 6, which is a linear drive hydraulic cylinder 61. The cylinder body of the linear drive hydraulic cylinder 61 is fixedly connected to the frame 5. The piston rod of the linear drive hydraulic cylinder 61 faces the shearing station 51. A tool changing base 62 is provided on the piston rod of the linear drive hydraulic cylinder 61. Two sets of guide rails 63 are fixedly provided on the frame 5. The setting direction of the guide rails 63 is parallel to the setting direction of the piston rod of the linear drive hydraulic cylinder 61. The tool changing base 62 is slidably connected to the two sets of guide rails 63, so that the linear drive hydraulic cylinder 61 can drive the tool changing base 62 to slide out and in on the guide rails 63. The linear drive hydraulic cylinder 61 slides the shearing mechanism 2 out of the shearing station 51, the tool changing mechanism 1 switches to the next set of shearing mechanisms 2, and the linear drive hydraulic cylinder 61 then slides the shearing mechanism 2 back into the shearing station 51. This avoids affecting the normal operation of other equipment and improves the convenience of automatic tool changing of the slitting machine.

[0034] The tool changing mechanism 1 includes a first rotary motor 11 and a first rotary shaft 12. The first rotary shaft 12 is a rectangular cylinder 13. The tool changing base 62 has a space for the first rotary motor 11. The output shaft of the first rotary motor 11 is fixedly connected to the rectangular cylinder 13. Each rotating roller 41 is mounted on the rectangular cylinder 13. The first rotary motor 11 can drive each rotating roller 41 to rotate in the horizontal direction. By rotating the rotating rollers 41 in the horizontal direction outside the shearing station 51 with the first rotary motor 11, the automatic tool changing is achieved, effectively reducing the operator's tool changing time and improving the working efficiency of the slitting machine.

[0035] Reference Figure 2 , Figure 3 Two rotating rollers 41 are arranged vertically at intervals on the side of the rectangular cylinder 13 and are parallel to each other in the horizontal direction. Two spare rotating rollers 41 are arranged on opposite sides of the rectangular cylinder 13. The rectangular cylinder 13 is provided with flanges 131 and flange sleeves 132. There are four flanges 131 and four flange sleeves 132, which correspond one-to-one with the rotating rollers 41. Each flange 131 is fixedly connected to the rectangular cylinder 13 by several bolts. Each flange sleeve 132 is fixedly arranged on the flange 131. Each flange sleeve 132 is provided with a bearing for the rotating rollers 41 to insert into. Each rotating roller 41 is rotatably connected to the flange sleeve 132 through the bearing. The drive unit 3 includes two sets of second rotating motors 31. Each set of second rotating motors 31 is mounted on the rectangular cylinder 13 and corresponds to two sets of rotating rollers 41. The two sets of second rotating motors 31 are located on opposite sides of the rectangular cylinder 13. The output shaft of each second rotating motor 31 is connected to the input shaft of the gearbox. The output shaft of the gearbox is connected to the rotating rollers 41 through a coupling. A drive gear 32 and a driven gear 33 are fixedly mounted on the two rotating rollers 41 respectively. The drive gear 32 and the driven gear 33 are meshed and connected. The parameters of the drive gear 32 and the driven gear 33 are the same, so that the two rotating rollers 41 rotate in opposite directions.

[0036] Reference Figure 4 , Figure 5 Each rotating roller 41 is provided with a groove 411, the length of which is equal to the axial length of the rotating roller 41. Each blade 42 and each inner sleeve 45 are coaxially sleeved on the rotating roller 41. Each blade 42 and each inner sleeve 45 is provided with a slider 412 on the inner wall of its hole. The length of the slider 412 along the axial direction of the rotating roller 41 is equal to the axial length of the blade 42. The slider 412 is adapted to the groove 411. The blade 42 and the inner sleeve 45 are coaxially arranged with the rotating roller 41, so that the rotating roller 41 can drive the blade 42 and the inner sleeve 45 to rotate. Each rotating roller 41 is coaxially sleeved with two fixing members 47 on both sides. Both fixing members 47 are fixedly connected to the rotating roller 41 by fixing bolts 461, so that several blades 42 and inner sleeves 45 are pressed and fixed between the two fixing members 47.

[0037] The blades 42 on the two sets of rotating rollers 41 are staggered in the vertical direction, and the side walls of the two sets of blades 42 are in contact. By using the staggered contact of the blades 42 on both sides of the steel strip, the pressure of the two sets of blades 42 causes local stress concentration at the shearing part of the steel strip, which causes the blades 42 to break and separate the steel strip, thus improving the efficiency of the blades 42 in shearing the steel strip.

[0038] An outer sleeve 46 is coaxially provided on the inner sleeve 45. The elastic element 43 is a telescopic spring 44. The outer sleeve 46 and the inner sleeve 45 are connected by the telescopic spring 44. The outer diameter of the outer sleeve 46 is not greater than the outer diameter of the blade 42. The outer sleeve 46 is separated from the blade 42 on the same side along the axial direction by the thickness of one blade 42. This avoids the adjacent blades 42 from affecting the outer sleeve 46 during the steel strip shearing process. This allows the telescopic spring 44 to press the outer peripheral sidewall of the outer sleeve 46 against the surface of the steel strip, improving the stability of the elastic element 43 during extrusion.

[0039] Multiple sets of telescopic springs 44 are spaced apart along the axial direction of the inner sleeve 45. Each set contains eight telescopic springs 44. The eight telescopic springs 44 are evenly arranged along the circumference of the inner sleeve 45. Each telescopic spring 44 is arranged radially along the inner sleeve 45, so that the compressive force applied by the telescopic springs 44 to each position of the outer sleeve 46 remains relatively consistent, thereby improving the stability of the compressive force applied by the telescopic springs 44.

[0040] The outer sleeve 46 is fitted with fixing bolts 461. The number of fixing bolts 461 is equal to that of the telescopic springs 44, and they correspond one-to-one with the telescopic springs 44. The ends of the fixing bolts 461 face the rotation axis of the inner sleeve 45. One end of the telescopic spring 44 is hooked to the outer surface of the inner sleeve 45, and the other end of the telescopic spring 44 is hooked to the end of the fixing bolt 461. The fixing bolts 461 are threadedly connected to the outer sleeve 46. When adjusting the extension and contraction of the spring, the fixing bolts 461 inside the outer sleeve 46 are rotated to adjust the compressive force applied by the telescopic spring 44 to the outer sleeve 46. The extension and contraction of the telescopic spring 44 is adjusted by rotating the fixing bolts 461, which improves the adaptability of the telescopic spring 44 to different working conditions.

[0041] The implementation principle of the automatic blade-changing slitting machine in this application embodiment is as follows: when the two sets of blades 42 are worn, the linear drive hydraulic cylinder 61 drives the rectangular cylinder 13 to slide out of the shearing station 51 along the track. The first rotary motor 11 drives the two sets of worn blades 42 on the rectangular cylinder 13 to rotate 180°, so that the two sets of worn blades 42 and the two sets of spare blades 42 exchange positions. Finally, the linear drive hydraulic cylinder 61 drives the rectangular cylinder 13 again, so that the two sets of spare blades 42 slide into the shearing station 51, completing the automatic blade changing.

[0042] During the shearing process of the steel strip, the steel strip enters between the upper and lower rotating rollers 41. The second rotating motor 31 simultaneously drives the upper and lower sets of blades 42 to rotate in opposite directions. The two sets of blades 42 compress the steel strip, causing stress concentration and breakage. The outer sleeve 46 continuously abuts against the surface of the steel strip under the action of the telescopic spring 44, suppressing the irregular vibration of the steel strip surface caused by shearing, thereby reducing the noise generated by the steel strip. By setting the telescopic spring 44 to compress and support the steel strip between the blades 42, the irregular vibration of the steel strip caused by suspension is reduced, thereby reducing the noise intensity generated by the steel strip during shearing and improving the working environment of the slitting machine.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A slitting machine with automatic blade changing, characterized in that: The system includes a tool changing mechanism (1) and a shearing mechanism (2), which are mounted on a frame (5). The shearing mechanism (2) consists of at least two sets, each connected to the tool changing mechanism (1). The frame (5) has a shearing station (51) for the shearing mechanism (2) to operate. The tool changing mechanism (1) can drive each set of shearing mechanisms (2) to the shearing station (51) sequentially. The shearing mechanism (2) includes a driving component (3) and two sets of shearing assemblies (4). The driving component (3) is mounted on the tool changing mechanism (1). Each set of shearing components (4) includes a rotating roller (41), a blade (42), and an elastic element (43). Two sets of rotating rollers (41) are arranged on the blade changing mechanism (1). The two sets of rotating rollers (41) are arranged opposite to each other and connected to the driving component (3). The blade (42) is arranged on the rotating roller (41). The rotating roller (41) is provided with an inner sleeve (45). The inner sleeve (45) is arranged between two adjacent blades (42). The elastic element (43) is arranged on the inner sleeve (45). The two sets of elastic elements (43) can abut against the steel strip in the shearing state.

2. The slitting machine with automatic blade changing according to claim 1, characterized in that: An outer sleeve (46) is coaxially provided on the inner sleeve (45). The outer diameter of the outer sleeve (46) is less than or equal to the outer diameter of the blade (42). The outer sleeve (46) is connected to the inner sleeve (45) through the elastic element (43). The elastic element (43) can abut the outer sleeve (46) against the surface of the steel strip.

3. The slitting machine with automatic blade changing according to claim 2, characterized in that: The elastic element (43) includes a plurality of telescopic springs (44), which are evenly arranged along the circumference of the inner sleeve (45). One end of the telescopic spring (44) is connected to the inner sleeve (45), and the other end of the telescopic spring (44) is connected to the outer sleeve (46).

4. The slitting machine with automatic blade changing according to claim 3, characterized in that: Multiple sets of the telescopic springs (44) are arranged at intervals along the axial direction of the inner sleeve (45), and each telescopic spring (44) is arranged radially along the inner sleeve (45).

5. The slitting machine with automatic blade changing according to claim 3, characterized in that: The outer sleeve (46) is provided with a plurality of fixing bolts (461), each fixing bolt (461) corresponding to one of the telescopic springs (44) and fixedly connected to the telescopic springs (44), and the fixing bolts (461) are threadedly connected to the outer sleeve (46).

6. The slitting machine with automatic blade changing according to claim 1, characterized in that: The frame (5) is provided with a linear drive mechanism (6), which is connected to the tool changing mechanism (1). The linear drive mechanism (6) can drive the tool changing mechanism (1) to slide out and into the shearing station (51), so that each set of shearing mechanisms (2) can switch positions outside the shearing station (51).

7. The slitting machine with automatic blade changing according to claim 6, characterized in that: The tool changing mechanism (1) includes a first rotating motor (11) and a first rotating shaft (12). The first rotating motor (11) is mounted on the linear drive mechanism (6), and the first rotating shaft (12) is rotatably mounted on the linear drive mechanism (6). The first rotating motor (11) is connected to the first rotating shaft (12), and the first rotating shaft (12) is connected to each group of shearing mechanisms (2). The first rotating motor (11) can drive each group of shearing mechanisms (2) to rotate.

8. The slitting machine with automatic blade changing according to claim 1, characterized in that: The two sets of oppositely arranged blades (42) are staggered and fitted together.

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