Flying shear capable of rapidly changing cutter and using method

Abstract

The invention discloses a flying shear capable of rapidly changing a cutter and a using method, and relates to the technical field of cutter changing of flying shears, and the flying shear comprises a flying shear, a blade, an abutting assembly and an adjusting assembly; the flying shear is provided with a guide groove for the blade to slide, the side portion and the bottom of the blade abut against the inner wall of the guide groove, the adjusting assembly is installed on the flying shear and used for adjusting the gap of the blade located in the guide groove, and the abutting assembly is installed on the flying shear and used for abutting against the two ends of the blade in the vertical direction. The flying shear has the advantages that potential safety hazards during blade replacement or blade disassembly are reduced, the safety of the flying shear in the blade replacement process is improved, the blade replacement time is shortened, and the blade can be more conveniently, easily and conveniently assembled or disassembled and maintained.

Description

Technical Field

[0001] The present application relates to the technical field of knife changing for flying shears, and in particular to a flying shear with fast knife changing and a method for using the same. Background Art

[0002] Flying shear is a kind of shearing machine, which can shear the moving rolled products horizontally. Flying shear is mainly used to shear medium and small billets, thin slabs, small steel (bars) and hot-rolled and cold-rolled strip steel (including coated ones). It is also used to cut the plate edges cut by the disc shear (i.e., edge shredder).

[0003] When existing flying shears cut workpieces, they need to use blades for cutting. Conventional blades are directly fixed inside the equipment by a number of bolts. When replacing or removing the blades, workers are required to manually reach into the equipment to remove the blades, which poses a great safety hazard and is extremely inconvenient during the manual installation or disassembly process. Summary of the invention

[0004] In order to improve the problem that when replacing or removing the blade, workers directly manually reach into the equipment to replace or remove the blade, which poses a great safety hazard, the present application provides a flying shear with a quick blade change and a method of use.

[0005] The present application provides a flying shear with a quick blade change and a method of use thereof, which adopts the following technical solutions: On the one hand, the present application discloses a flying shear with quick blade change, which includes a flying shear, a blade, a clamping assembly and an adjustment assembly; the flying shear is provided with a guide groove for the blade to slide, and the side and bottom of the blade are both against the inner wall of the guide groove, the adjustment assembly is installed on the flying shear to adjust the gap of the blade located in the guide groove, and the clamping assembly is installed on the flying shear to clamp the two ends of the blade in the vertical direction.

[0006] By adopting the above technical solution, workers use tools to transfer the blade along the guide groove on one side of the flying shears along the length direction of the blade. After installation, the adjustment component can adjust the gap on both sides of the blade so that the blade is in different shearing positions, thereby being able to adjust the gap in the guide groove and achieve installation and tightening for blades of different thicknesses. The tightening component tightens the end of the blade to maintain the stability of the blade during use. When replacing or disassembling, workers only need to transport the blade through the guide groove, reducing the need for workers to reach inside for disassembly and installation, greatly improving the safety of workers while also improving the efficiency of blade installation or disassembly.

[0007] Optionally, the clamping assembly includes a clamping member, a locking member, a hydraulic cylinder, a piston rod and a disc spring, the hydraulic cylinder is installed on the flying shear, one end of the piston rod is connected to the output end of the hydraulic cylinder, the other end of the piston rod is connected to the clamping member, the disc spring is installed on the piston rod, the clamping member is installed on the flying shear adjacent to one side of the blade, and the locking member is installed on the flying shear to lock both ends of the blade.

[0008] By adopting the above technical solution, the hydraulic cylinder is driven, and the disc spring sleeved on the piston rod overcomes the elastic force, and the blade is inserted from the side guide groove of the flying shear. After installation, the hydraulic cylinder unloads the force, and the locking part moves downward under the pressure of the disc spring to press the blade. After the blade is installed in place, the two ends of the blade are pressed against the two ends of the blade through the pressing part, thereby preventing the blade from being displaced. During the disassembly process, the operating actions are reversed.

[0009] Optionally, the adjustment assembly includes a servo motor, a worm gear structure, an adjusting screw and a slider, the servo motor is installed on the flying shear, the worm gear structure is installed on the output end of the servo motor, the adjusting screw is installed on the end of the worm gear structure away from the servo, the adjusting screw and the slider are threadedly matched, and the slider and the guide groove are slidingly matched.

[0010] By adopting the above technical solution, after the servo motor is driven, the extended shaft of the servo motor drives the worm gear structure to transmit, the worm gear structure drives the adjusting screw to rotate, and the screw drives the slider to slide in the guide groove. Since the slider is inclined, when the position of the slider in the guide groove is adjusted, the blade is located at different depths in the guide groove, thereby changing the gap of the blade in the guide groove.

[0011] Optionally, the abutting member includes a wedge block and a stop block, the stop blocks are arranged in a linear array on the flying shear, the wedge block sliding on each stop block is fixed to a piston rod, and an end face of the wedge block away from the stop block and a side face of the blade are parallel to each other.

[0012] By adopting the above technical solution, the block is arranged and fixed at the notch position of the guide groove of the flying shear. The shape of the wedge block has an inclined end face on one side and a flat end face on the other side. The inclined end face fits with the end face when the block slides. When the wedge block and the block form a misaligned height difference, the tightness of the blade in the guide groove is changed.

[0013] Optionally, the locking member includes an upper knife mounting seat, an upper knife locking rod, a lower knife mounting seat and a lower knife locking rod, the upper knife mounting seat is arranged on the flying shear at one end of the blade, the lower knife mounting seat is arranged on the flying shear at the other end of the blade, the upper knife locking rod is installed on the upper knife mounting seat, and the lower knife locking rod is installed on the lower knife mounting seat, and the two ends of the blade are respectively against the upper knife locking rod and the lower knife locking rod.

[0014] By adopting the above technical solution, the upper blade mounting seat and the lower blade mounting seat are respectively integrated on the flying shear, and the upper blade locking rod and the lower blade locking rod respectively loosen or tighten the abutting positions at both ends of the blade, thereby improving the stability of the blade installed in the guide groove.

[0015] Optionally, the flying shear is also equipped with a gap adjustment mechanism, which includes an adjustment baffle, an adjustment bevel block, a slide plate adjustment screw, a slider pressure plate and a driving bevel block. The adjustment baffle is fixed on the flying shear, and the driving bevel block slides between the adjustment baffle and the adjustment bevel block. The slider pressure plate and the adjustment bevel block are fastened by bolts, and the slide plate adjustment screw passes through the adjustment baffle and the driving bevel block thread.

[0016] By adopting the above technical scheme, the adjustment baffle is fixed on the flying shear, the driving bevel block slides on the adjustment baffle, the slider pressure plate is fastened with bolts and the adjustment bevel block, and there is a transmission roller on the top of the slider pressure plate located inside the flying shear. When the steel billet, thin plate billet or small steel section to be sheared is transmitted inside the flying shear, after adjusting the driving bevel block to different positions of the adjusting bevel block, and locking the adjustment baffle and the driving bevel block, the gap between the slider pressure plate and the transmission roller can be adjusted and changed, so that when the steel billet, thin plate billet or small steel section transmitted by the transmission roller is sheared, the error during shearing is adjusted to reduce burrs on the blade.

[0017] Optionally, one end surface of the wedge block is inclined, and the other end surface of the wedge block and the blade remain horizontal.

[0018] By adopting the above technical solution, the shape of the wedge block makes it easier for the blade to be pressed tightly between the stop block and the wedge block, thereby improving the stability of the blade installation.

[0019] On the other hand, the present application also discloses a method for using a fast blade-changing shear, comprising the following working steps: First, when the shearing machine changes the blade quickly, the hydraulic cylinder drives the piston rod and the wedge block to move upward to overcome the elastic force of the disc spring. The blade is installed along the guide groove opened on the side of the shearing machine, the clamping piece is against the end of the blade, and the locking piece adjusts the gap between different blades. Secondly, the servo motor is driven, and the output shaft of the servo motor drives the worm gear transmission, the worm gear and the adjusting screw rotate together, and the slider slides in the guide groove to adapt to the gap adjustment of the blade installed in different positions; Finally, the blade is installed in the guide groove, the disc spring and the wedge block press the blade tightly, and the blade and the shear are locked by bolts to ensure the blade is firmly installed. During the blade removal process, loosen the fixing bolts on the flying shear, open the hydraulic cylinder, move the piston rod and the wedge upward, the disc spring overcomes the spring action, the wedge disengages from the end of the abutting blade, adjust the gap of the blade in the guide groove, and manually pull the blade out from the guide groove on one side of the flying shear to achieve quick replacement operation.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The tightening assembly on the flying shear is in a loose state, and the blade is conveyed through the guide groove on the side of the flying shear. After the blade is installed in place, the gap size on both sides of the blade is adjusted by adjusting the assembly to meet the installation conditions of blades of different thicknesses in the flying shear; 2. Workers transfer the blades to the inside of the shears through the guide groove, avoiding manual entry into the shears for installation or disassembly, thus ensuring the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of this application when viewed from the front.

[0023] Figure 2 It is a cross-sectional view showing the gap adjustment mechanism of the present application.

[0024] Figure 3 It is a cross-sectional view showing the tightening component of the present application.

[0025] Figure 4 It is a cross-sectional view showing the adjustment assembly of the present application.

[0026] Figure 5 This application displays Figure 2 A-axis enlarged view.

[0027] Figure numerals: 1. flying shear; 2. blade; 4. adjustment assembly; 31. pressing member; 32. locking member; 42. worm gear structure; 43. adjusting screw; 44. slider; 321. upper knife mounting seat; 322. upper knife locking rod; 323. lower knife mounting seat; 324. lower knife locking rod; 5. gap adjustment mechanism; 51. adjustment block; 52. adjustment bevel block; 53. slide plate adjustment screw; 54. slider pressure plate; 55. driving bevel block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1To Attachment Figure 5 This application is described in further detail.

[0029] The embodiment of the present application discloses a flying shear with fast knife change.

[0030] Reference Figure 1 , which consists of a shearing machine 1, a blade 2, a clamping assembly and an adjusting assembly 4; a guide groove for the blade 2 to slide is provided on the shearing machine 1. When the blade 2 is installed in the guide groove, the side and bottom of the blade 2 are both against the inner wall of the guide groove. The adjusting assembly 4 is installed on the shearing machine 1 to adjust the gap of the blade 2 located in the guide groove. The clamping assembly is installed on the shearing machine 1 to clamp the two ends of the blade 2 in the vertical direction. The blade 2 is installed or removed from the guide groove in the shearing machine 1. On the one hand, it plays a limiting role in the transmission of the blade 2. On the other hand, the worker can operate the transmission alone, which improves the efficiency of the installation or disassembly process. It is safer when the blade 2 is manually pumped, which reduces the number of people entering the shearing machine 1 for installation and disassembly, thereby improving safety.

[0031] The clamping assembly is composed of a clamping member 31, a locking member 32, a hydraulic cylinder, a piston rod and a disc spring (the hydraulic cylinder, the piston rod and the disc spring are not shown). The hydraulic cylinder is installed on the shearing machine 1, one end of the piston rod is connected to the output end of the hydraulic cylinder, and the other end of the piston rod is connected to the clamping member 31. The disc spring is installed on the piston rod. The clamping member 31 is installed on the shearing machine 1 that is attached to one side of the blade 2. The locking member 32 is installed on the shearing machine 1 to lock the two ends of the blade 2. When the blade 2 is installed, the hydraulic cylinder drives the locking member 32 to disengage from the clamping blade 2 and overcome the elastic action of the disc spring. Apply force, then insert the blade 2 into the guide groove of the shearing machine 1. After the blade 2 is installed in place, the hydraulic cylinder unloads the force, and the pressure of the butterfly spring moves downward to press the blade 2 tightly. The two ends of the blade 2 are locked on the body of the shearing machine 1 by the locking piece 32, thereby preventing the blade 2 from moving; when the blade 2 is removed, the locking piece 32 is disengaged from the abutment of the end of the blade 2, and the hydraulic cylinder will retreat to overcome the force of the butterfly spring, and the blade 2 can be smoothly pulled out along the guide groove to the outside of the shearing machine 1, which provides great convenience for manual work and ensures the safety of customers during installation or disassembly.

[0032] See also Figure 1 As shown, the clamping member 31 includes a wedge and a stopper (the wedge and the stopper are not shown). The stopper is fixedly arranged in a linear array on the shearing machine 1. The wedge sliding on each stopper is fixed to the piston rod. The end face of the wedge away from the stopper and the side face of the blade 2 are parallel to each other. In this embodiment, the cross-section of the wedge is a right-angled trapezoid. The side of the stopper close to the wedge is provided with an inclined surface, which serves as the plane of the wedge and the blade 2 against each other. The blade 2 is squeezed on one side of the plane end of the wedge block, so that the wedge block is squeezed out from one side of the stopper, thereby clamping the blades 2 of different thicknesses.

[0033] See also Figure 3 As shown, the locking member 32 includes an upper knife mounting seat 321, an upper knife locking rod 322, a lower knife mounting seat 323 and a lower knife locking rod 324. The upper knife mounting seat 321 is arranged on the flying shear 1 at one end of the blade 2, and the lower knife mounting seat 323 is arranged on the flying shear 1 at the other end of the blade 2. The upper knife locking rod 322 slides on the upper knife mounting seat 321, and the lower knife locking rod 324 slides on the lower knife mounting seat 323. The upper knife locking rod 322 and the lower knife locking rod 324 are respectively fixed with pressure plates near one end of the blade 2, and the pressure plates on both sides are respectively abutted against the end of the blade 2, so that there is a clamping force on both sides when the blade 2 is installed or removed in the guide groove.

[0034] See also Figure 4 As shown, the adjustment component 4 includes a servo motor (not shown), a worm gear structure 42, an adjustment screw 43 and a slider 44. The servo motor is installed on the flying shear 1, the worm gear structure 42 is installed on the output end of the servo motor, and the adjustment screw 43 is installed on the end of the worm gear structure 42 away from the servo. The adjustment screw 43 and the slider 44 are threadedly matched, and the slider 44 and the guide groove are slidingly matched. After the servo motor is turned on, the output end of the servo motor drives the worm gear structure 42 to transmit, the worm gear structure 42 drives the adjustment screw 43 to rotate, and the screw drives the slider 44 to slide in the guide groove. Since the slider 44 is inclined, when the position of the slider 44 in the guide groove is adjusted, the blade 2 is located at different depths in the guide groove, thereby changing the gap of the blade 2 in the guide groove.

[0035] See also Figure 2 and Figure 5 As shown, a gap adjustment mechanism 5 is also installed on the flying shear 1, and the gap adjustment mechanism 5 includes an adjustment block 51, an adjustment bevel block 52, a slide adjustment screw 53, a slider 44 pressure plate and a driving bevel block 55. The adjustment block 51 is fixed on the flying shear 1, and the driving bevel block 55 slides between the adjustment block 51 and the adjustment bevel block 52. The slider 44 pressure plate and the adjustment bevel block 52 are fastened by bolts, and the slide adjustment screw 53 passes through the adjustment block 51 and the driving bevel block 55 to be threaded. The adjusting block 51 is fixed on the flying shear 1, the driving bevel block 55 slides on the adjusting block 51, the slider 44 pressure plate is fastened with bolts and the adjusting bevel block 52, and there is a transmission roller on the top of the slider 44 pressure plate located inside the flying shear 1. When the steel billet, thin slab or small steel to be sheared is transmitted inside the flying shear 1, after adjusting the driving bevel block 55 to different positions of the adjusting bevel block 52, and locking the adjusting baffle and the driving bevel block 55, the gap between the slider 44 pressure plate and the transmission roller can be adjusted and changed, so that when the steel billet, thin slab or small steel transmitted by the transmission roller is sheared, the burrs on the blade 2 are reduced, the error range during shearing is adjusted, and the shearing accuracy is improved.

[0036] First, when the shearing machine 1 is changing the blade quickly, the hydraulic cylinder drives the piston rod and the wedge block to move upward to overcome the elastic force of the disc spring, and the blade 2 is installed along the guide groove opened on the side of the shearing machine 1. The tightening member 31 presses against the end of the blade 2, and the locking member 32 adjusts the gap between different blades 2; Secondly, the servo motor is driven, and the output shaft of the servo motor drives the worm gear transmission, the worm gear and the adjusting screw 43 rotate, and the slider 44 slides in the guide groove to adapt to the gap adjustment of the blade 2 installed in different positions; Finally, the blade 2 is installed in the guide groove, the disc spring and the wedge block press the blade 2 tightly, and the blade 2 and the shear 1 are locked by bolts, so that the blade 2 is firmly installed; During the disassembly process of blade 2, loosen the fixing bolts on the shearing machine 1, open the hydraulic cylinder, move the piston rod and the wedge upward, the disc spring overcomes the spring action, the wedge disengages from the end of the abutting blade 2, adjust the gap of blade 2 in the guide groove, and manually pull out the blade 2 from the guide groove on one side of the shearing machine 1 to achieve a quick replacement operation.

[0037] The implementation principle of the flying shear 1 with quick blade change and the method of using the flying shear 1 is as follows: the blade 2 is installed and inserted into the guide groove of the flying shear 1. After the hydraulic cylinder is turned on, the piston rod and the wedge block move upward to overcome the elastic force of the disc spring, so as to facilitate sufficient space to insert the blade 2 into the guide groove. After the blade 2 is installed in place, the hydraulic cylinder unloads the force, and the wedge block moves downward under the pressure of the disc spring to press against the blade 2. The worm gear structure 42 in the adjustment component 4 is driven by the servo motor to drive the adjustment screw 43 to rotate, and the adjustment screw 43 drives the slider 44 in the guide groove. The side of the blade 2 is pressed against the inside, thereby adjusting the gap between the blades 2, so that the blade 2 is pressed against different degrees in the guide groove of the shearing machine 1, and the end of the blade 2 is pressed against the locking piece 32 to improve the stability during the installation process. During the entire installation or disassembly process, the worker only needs to pull the blade 2 from the guide groove on the side of the shearing machine 1, and there is no need to enter the inside of the shearing machine 1 for installation, which improves the safety performance and reduces the output of human labor. It provides great convenience for manual installation, disassembly and maintenance of the blade 2 and shortens the time for installing or disassembling the blade 2.

[0038] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flying shear with fast knife change, characterized in that: The invention comprises a shearing machine (1), a blade (2), a pressing assembly and an adjusting assembly (4); the shearing machine (1) is provided with a guide groove for the blade (2) to slide, the side and bottom of the blade (2) are pressed against the inner wall of the guide groove, the adjusting assembly (4) is installed on the shearing machine (1) and is used to adjust the gap of the blade (2) located in the guide groove, and the pressing assembly is installed on the shearing machine (1) and is used to press against the two ends of the blade (2) in the vertical direction.

2. A flying shear with rapid knife change according to claim 1, characterized in that: The clamping assembly comprises a clamping member (31), a locking member (32), a hydraulic cylinder, a piston rod and a disc spring. The hydraulic cylinder is mounted on the shearing machine (1). One end of the piston rod is connected to the output end of the hydraulic cylinder. The other end of the piston rod is connected to the clamping member (31). The disc spring is mounted on the piston rod. The clamping member (31) is mounted on the shearing machine (1) in contact with one side of the blade (2). The locking member (32) is mounted on the shearing machine (1) to lock the two ends of the blade (2).

3. A flying shear with rapid knife change according to claim 1, characterized in that: The adjustment assembly (4) comprises a servo motor, a worm gear structure (42), an adjustment screw (43) and a slider (44); the servo motor is mounted on the flying shear (1); the worm gear structure (42) is mounted on the output end of the servo motor; the adjustment screw (43) is mounted on the end of the worm gear structure (42) away from the servo; the adjustment screw (43) and the slider (44) are threadedly matched; and the slider (44) and the guide groove are slidingly matched.

4. A flying shear with rapid knife change according to claim 2, characterized in that: The abutting member (31) comprises a wedge block and a stop block, wherein the stop blocks are arranged in a linear array on the shearing machine (1), the wedge block sliding on each stop block is fixed to the piston rod, and the end face of the wedge block away from the stop block and the side face of the blade (2) are parallel to each other.

5. A flying shear with rapid blade change according to claim 2, characterized in that: The locking member (32) comprises an upper blade mounting seat (321), an upper blade locking rod (322), a lower blade mounting seat (323) and a lower blade locking rod (324); the upper blade mounting seat (321) is arranged on the shearing machine (1) at one end of the blade (2); the lower blade mounting seat (323) is arranged on the shearing machine (1) at the other end of the blade (2); the upper blade locking rod (322) is mounted on the upper blade mounting seat (321); the lower blade locking rod (324) is mounted on the lower blade mounting seat (323); and the two ends of the blade (2) are respectively against the upper blade locking rod (322) and the lower blade locking rod (324).

6. A flying shear with rapid knife change according to claim 1, characterized in that: The shearing machine (1) is also provided with a gap adjustment mechanism (5), and the gap adjustment mechanism (5) comprises an adjustment block (52), an adjustment bevel block (52), a slide adjustment screw (53), a slider (44) pressure plate and a driving bevel block (55). The adjustment block (52) is fixed on the shearing machine (1), and the driving bevel block (55) slides between the adjustment block (52) and the adjustment bevel block (52). The slider (44) pressure plate and the adjustment bevel block (52) are fastened by bolts, and the slide adjustment screw (53) passes through the adjustment block (52) and the driving bevel block (55) and is threadedly engaged.

7. A flying shear with rapid blade change according to claim 4, characterized in that: One end surface of the wedge block is inclined, and the other end surface of the wedge block and the blade (2) remain horizontal.

8. A method for using a fast blade-changing flying shear (1) according to any one of claims 1 to 7, characterized in that: The following steps are included: First, when the shearing machine (1) is changing the blade quickly, the hydraulic cylinder drives the piston rod and the wedge block to move upward to overcome the elastic force of the disc spring, and the blade (2) is installed along the guide groove opened on the side of the shearing machine (1). The abutment member (31) is pressed against the end of the blade (2), and the locking member (32) is used to adjust the gap between different blades (2); Secondly, the servo motor is driven, and the output shaft of the servo motor drives the worm gear transmission, the worm gear and the adjusting screw (43) rotate, and the slider (44) slides in the guide groove to adapt to the gap adjustment of the blade (2) installed in different positions; Finally, the blade (2) is installed in the guide groove, the disc spring and the wedge block press the blade (2), and the blade (2) and the shear (1) are locked by bolts, so that the blade (2) is firmly installed; During the removal of the blade (2), the fixing bolts on the shear (1) are loosened, the hydraulic cylinder is opened, the piston rod and the wedge block are moved upward, the disc spring overcomes the spring action, the wedge block is separated from the end of the blade (2) abutting, the gap of the blade (2) in the guide groove is adjusted, and the blade (2) is manually pulled out from the guide groove on one side of the shear (1), thereby realizing a quick replacement operation.

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