A multi-functional flying shear and its adjusting method

Abstract

The present application relates to a kind of multifunctional flying shear and its adjusting method, belong to metallurgical equipment technical field, including flying shear body, flying shear body includes the upper rotary drum supported at two ends on upper support seat and the lower rotary drum supported at two ends on lower support seat, upper support seat and lower support seat are connected with lifter to enable it to be lifted relative to rack, the circumferential interval of upper rotary drum and lower rotary drum is equipped with multiple groups of blade, to realize the blade of on-line selection matching, blade is connected with height adjusting device for adjusting the overlapping amount of blade, gap adjusting device for adjusting blade gap, shear adjusting device for adjusting blade opening degree, to realize the automatic adjustment of blade.The present application is equipped with multiple groups of blade and its adjusting device, can on-line automatically select blade, and automatically adjust blade gap, overlapping amount, opening degree, reduce production cost, improve product quality and production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical equipment technology and relates to a multifunctional flying shear and its adjustment method. Background Technology

[0002] Flying shears are crucial equipment in steel enterprises for shearing metal billets, and their structural performance directly impacts the production efficiency of rolling production lines. There are many structural forms of flying shear mechanisms, with the drum-type flying shear being one of them. Currently used flying shear blades have limited shearing functions; in the forming of cold or hot strip or waste-heat strip, the shape of the flying shear blades, blade gap, blade overlap, and opening degree cannot be automatically selected or adjusted online. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a multifunctional flying shear and its adjustment method, so as to realize online selection and automatic adjustment of the flying shear blades.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A multi-functional flying shear includes a flying shear body, which includes an upper drum supported at both ends on an upper support base and a lower drum supported at both ends on a lower support base. Both the upper and lower support bases are connected to a lifter to enable them to rise and fall relative to the frame. Multiple sets of blades are arranged circumferentially on the upper and lower drums to enable online selection and matching of blades. The blades are connected to a height adjustment device for adjusting the blade overlap, a gap adjustment device for adjusting the blade gap, and a shearing adjustment device for adjusting the blade opening degree to achieve automatic blade adjustment.

[0006] Optionally, the height adjustment device includes an upper wedge located below the blade and acting on the blade, a lower wedge matching the upper wedge, a push-pull rod connected to the lower wedge, and a height adjustment push-pull device connected to the push-pull rod.

[0007] Optionally, the working surface between the blade and the upper wedge is an arc surface or a plane.

[0008] Optionally, the gap adjustment device includes a positioning slant plate located on one side of the blade, a slant plate located between the blade and the positioning slant plate and slidably connected thereto, and a gap adjustment push-pull device connected to the slant plate. The gap adjustment push-pull device and the positioning slant plate are installed on the corresponding upper or lower drum.

[0009] Optionally, the gap adjustment device further includes a pushing mechanism, which includes a slide rod that is slidably connected to the positioning inclined plate and extends one end toward the blade, a pushing block located at the front end of the slide rod and acting on the blade, and a spring sleeved on the slide rod and located between the pushing block and the positioning inclined plate. A limiting member is provided at the rear end of the slide rod to prevent the slide rod from falling off the positioning inclined plate.

[0010] Optionally, the shearing adjustment device and the gap adjustment device are located on both sides of the blade. The shearing adjustment device includes a clamping sloping plate slidably connected to the blade, a connecting rod with one end slidably hinged to the clamping sloping plate, the other end of the connecting rod being hinged to the blade, and a pull rod hinged to the middle of the connecting rod. The pull rod is connected to a shearing adjustment push-pull device to move the clamping sloping plate up and down.

[0011] Optionally, an upper and lower drum balancing and positioning device is provided between the upper drum and the lower drum. The upper and lower drum balancing and positioning device is located at both ends of the drum and includes a slide rod with one end fixedly connected to the lower support seat, and the other end of the slide rod slidably connected to the upper support seat. A spring is sleeved on the slide rod and the spring is located between the upper support seat and the lower support seat.

[0012] Optionally, the height adjustment device, the gap adjustment device, and the shear adjustment device are all equipped with displacement sensors.

[0013] A method for adjusting a multi-functional flying shear is provided, wherein when shearing brittle steel, the upper and lower shear blades retract rapidly after approaching the center line of the workpiece to be sheared, in order to prevent deformation caused by raising or lowering the workpiece.

[0014] Optionally, the type and quantity of blades are matched with production needs to enable online automatic selection of matching blades based on production requirements.

[0015] The beneficial effects of this invention are: it can automatically select the shape of the flying shear blades online according to product needs, and automatically adjust the blade gap, overlap and opening, thereby reducing production costs and improving product quality and production efficiency.

[0016] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the flying shear of the present invention;

[0019] Figure 2 This is a side view of the flying shear body;

[0020] Figure 3 This is the main view of the flying shear body;

[0021] Figure 4 Schematic diagram of blade arrangement Figure 1(12 sets of blades);

[0022] Figure 5 Schematic diagram of blade arrangement Figure 2 (6 sets of blades);

[0023] Figure 6 Blade adjustment diagram Figure 1 ;

[0024] Figure 7 This is a schematic diagram of blade wedge adjustment;

[0025] Figure 8 Blade adjustment diagram Figure 2 ;

[0026] Figure 9 This is a schematic diagram showing the positions of the upper and lower blades in a shearing state. Figure 9 a is a schematic diagram of the horizontal gap t2, overlap t1 and the positions of the upper and lower blades; Figure 9 b is a schematic diagram showing the overlap amount t1, strip thickness or section steel height h1 and the positions of the upper and lower blades; Figure 9 c is a schematic diagram showing the opening degree t3, strip thickness or section steel height h1 and the positions of the upper and lower blades;

[0027] Figure 10 This is a schematic diagram of the shearing state;

[0028] Figure 11 This is a top view of the cut shape of sheared strips or sections of steel, where... Figure 11 a to 11d are top views of four different planar cut shapes;

[0029] Figure 12 This is a schematic diagram of the cut shape for shearing strips or steel profiles.

[0030] Reference numerals: Flying shear body 100, upper drum assembly 110, upper drum 111, lower drum assembly 120, lower drum 121, lifting device 130, frame assembly 140, upper and lower drum balance positioning device 150, height adjustment device 160, push-pull device 161, push-pull rod 162, lower wedge 163, upper wedge 164, positioning plate 165, rotary joint 170, shearing adjustment device 180, clamping inclined plate 181, connecting rod 182, pull rod 183, positioning baffle 184, shearing adjustment push-pull device 185, upper blade 191A, lower blade 191B, inclined pad 192, positioning inclined plate 193, clearance adjustment push-pull device 194, connecting rod 195, transmission device 200, motor reducer 201, backlash-free reducer 202, backlash-free universal joint 203, universal joint positioning device 204. Detailed Implementation

[0031] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Please see Figures 1-12 A multi-functional flying shear includes a flying shear body 100, which includes an upper drum 111 supported at both ends on an upper support base and a lower drum 121 supported at both ends on a lower support base. Both the upper and lower support bases are connected to a lifter 130 to enable them to rise and fall relative to the frame. Multiple sets of blades are circumferentially spaced on the upper drum 111 and the lower drum 121 to enable online selection and matching of blades. The blades are connected to a height adjustment device 160 for adjusting the blade overlap, a gap adjustment device for adjusting the blade gap, and a shearing adjustment device 180 for adjusting the blade opening degree to achieve automatic blade adjustment.

[0035] This invention features multiple sets of blades and their adjustment devices, which can automatically select the shape of the flying shear blades online according to the needs of hot and cold strip production or waste heat forming products. It intelligently controls and adjusts the blade gap, overlap, and opening, reducing downtime adjustment costs and improving the quality of sheared products, production efficiency, and productivity.

[0036] Optionally, the height adjustment device 160 includes an upper inclined wedge 164 located below the blade and acting on the blade, a lower inclined wedge 163 matching the upper inclined wedge 164, a push-pull rod 162 connected to the lower inclined wedge 163, and a height adjustment push-pull device 161 connected to the push-pull rod 162; the working surface between the blade and the upper inclined wedge 164 is an arc surface or a plane; the gap adjustment device includes a positioning inclined plate 193 located on one side of the blade, an inclined pad 192 located between the blade and the positioning inclined plate 193 and slidably connected thereto, and a height adjustment push-pull device 161 connected to the upper inclined wedge 164. The gap adjustment push-pull device 194 is connected to the pad 192. The gap adjustment push-pull device 194 and the positioning inclined plate 193 are installed on the corresponding upper drum 111 or lower drum 121. The gap adjustment device also includes a pushing mechanism, which includes a slide rod that is slidably connected to the positioning inclined plate 193 and extends one end toward the blade, a pushing block located at the front end of the slide rod and acting on the blade, and a spring sleeved on the slide rod and located between the pushing block and the positioning inclined plate 193. A limiting member is provided at the rear end of the slide rod to prevent the slide rod from falling off the positioning inclined plate 193. The shearing adjustment device 180 and the gap adjustment device are located on both sides of the blade. The shearing adjustment device 180 includes a clamping inclined plate 181 slidably connected to the blade, a connecting rod 182 with one end slidably hinged to the clamping inclined plate 181, and the other end of the connecting rod 182 hinged to the blade. A pull rod 183 is hinged to the middle of the connecting rod 182. The pull rod 183 is connected to a shearing adjustment push-pull device 185 to move the clamping inclined plate 181 up and down. The clamping inclined plate 181 is connected to the corresponding upper drum 111 or lower drum. The positioning baffle 184 on 121 limits its large end limit position; an upper and lower drum balance positioning device 150 is provided between the upper drum 111 and the lower drum 121. The upper and lower drum balance positioning device 150 is located at both ends of the drum and includes a slide rod with one end fixedly connected to the lower support seat and the other end of the slide rod slidably connected to the upper support seat. A spring is sleeved on the slide rod and the spring is located between the upper support seat and the lower support seat; the height adjustment device 160, the gap adjustment device, and the shear adjustment device 180 are all equipped with displacement sensors.

[0037] A method for adjusting a multi-functional flying shear is provided, wherein when shearing brittle steel, the upper and lower shear blades retract rapidly after approaching the center line of the workpiece to be sheared, in order to prevent deformation caused by raising or lowering the workpiece; the type and quantity of blades are matched with production requirements, so as to realize the online automatic selection of matching blades according to production requirements.

[0038] Example

[0039] A multi-functional flying shear, such as Figures 1-12 As shown, it includes a flying shear body 100, a lifting device 130, a frame assembly 140, an upper drum balancing and positioning device 150, a height adjustment device 160, a gap adjustment device, a rotary joint 170, a shearing adjustment device 180, a blade assembly, a transmission device 200, and an external (operating side) quick-change device for the upper and lower drums, etc.

[0040] Meaning of symbols in the image:

[0041] h1: Plate / strip thickness or section steel height; the thickness of hot-rolled plate / strip sheared or formed is preferably 5-60 mm.

[0042] b: Width, the width of the shearing of strips or sections of steel. The width of a single strip is preferably 800-5000mm, or the width of multiple cut strips or shaped sections of steel, arranged and sheared simultaneously.

[0043] L: Length, the length of the strip or section steel being cut, or the length of the cut segment;

[0044] t2: Horizontal gap between the upper and lower blades, preferably t2 = 5% × h1 ~ 20% × h1;

[0045] t1: Overlap of the upper and lower blades, preferably t1 = 0 to 10 mm;

[0046] t3: Opening degree of the upper and lower blades; when plate, strip or section steel passes through, t3>h1;

[0047] A: Center distance between the upper and lower drums;

[0048] The flying shear body 100 includes an upper drum assembly 110 and a lower drum assembly 120. The upper drum assembly 110 includes an upper drum 111, bearings, bearing seats, seals, connectors, etc.; the lower drum assembly 120 includes a lower drum 121, bearings, bearing seats, seals, connectors, etc.

[0049] The lifting device 130 is a hydraulic cylinder or jack structure;

[0050] The frame assembly 140 includes a drive shaft axial positioning device 141, a drive-side frame, an operating-side frame, an upper crossbeam, a lower crossbeam, connecting parts, etc.; the drive shaft axial positioning device 141 is located on the operating side and includes a hydraulic cylinder, a sliding plate, etc.

[0051] The upper and lower drum balancing and positioning device 150 includes a spring, a positioning bushing, a shaft, and connecting parts. The upper and lower drum balancing and positioning device 150 is fixedly connected to the bearing seat of the lower drum assembly 120 and slidably connected to the bearing seat of the upper drum assembly 110. It balances the weight of the upper drum assembly 110 and positions the center position of the upper and lower drum assemblies with high precision.

[0052] The height adjustment device 160 includes a height adjustment push-pull device 161, a push-pull rod 162, a lower inclined wedge 163, an upper inclined wedge 164, a positioning plate 165, and connecting parts, etc.

[0053] The shearing adjustment device 180, driven by a hydraulic cylinder or spring cylinder, includes a shearing adjustment push-pull device 185, a clamping inclined plate 181, a connecting rod 182, a pull rod 183, a positioning baffle 184, and connecting parts. The shearing adjustment push-pull device 185 is fixedly connected to the upper drum 111 and the lower drum 121, respectively, and is assembled in the holes of the upper and lower drums. The pull rod 183 is hinged to the connecting rod 182 and the shearing adjustment push-pull device 185. The connecting rod 182 is hinged to the upper blade 191A and the lower blade 191B, and is slidably hinged to the clamping inclined plate 181. The clamping inclined plate 181 is slidably connected to the upper blade 191A and the lower blade 191B, and is slidably connected to the upper drum 111 and the lower drum 121.

[0054] The upper and lower blade assemblies include an upper blade 191A, a lower blade 191B, a slanted pad 192, a positioning slant plate 193, a gap adjustment push-pull device 194, a connecting rod 195, and connecting parts. The slanted pad 192 is slidably connected to the upper blade 191A and the lower blade 191B. The gap adjustment push-pull device 194 is fixedly connected to the upper drum 111 and the lower drum 121, respectively. Each blade has at least two push-pull devices 194, connecting rods 195, and connecting parts, which are respectively assembled at both ends of the blade 191. The shapes of the N and M surfaces of the upper blade 191A and the lower blade 191B can be one of the following: flat, curved, rectangular, triangular, or curved, or a combination of various flat, curved, or convex / concave shapes that are cyclically matched, to achieve multi-functional intelligent control selection for shearing. The height adjustment device 160, the shearing adjustment push-pull device 180, and the gap adjustment push-pull device 194 work together to achieve intelligent control adjustment for multi-functional shearing.

[0055] The flying shear includes at least one set of upper blade assembly 190A and lower blade assembly 190B that match each other; the number of matching upper blade assembly 190A and lower blade assembly 190B is determined according to the size of the flying shear (the diameter of the upper drum 111 and lower drum 121) or the needs of the product being sheared. Figure 4 (Illustration: 12 sets of left, right, up, and down blades are to be assembled);

[0056] The transmission device 200 includes a motor reducer 201, a backlash-free reducer 202, a backlash-free universal joint 203, a universal joint positioning device 204, as well as couplings, connecting parts, etc.

[0057] Intelligent adjustment method (according to) Figure 8(Enlarged view description): The piston rod of the shear adjustment push-pull device 185 extends, pushing the pull rod 183 and connecting rod 182 to move upward and press the inclined plate 181, upper blade 191A, or lower blade 191B; at the same time, the blade height adjustment push-pull device 161 pushes the push-pull rod 162 and lower inclined wedge 163 to move the upper inclined wedge 164 upward, while simultaneously driving the upper blade 191A or lower blade 191B to adjust the overlap and opening of the upper and lower blades; at this time, if it is necessary to adjust the gap between the upper and lower blades, the gap adjustment push-pull device 194 pushes and pulls the inclined pad 192, driving the upper blade 191A or lower blade 191B to move horizontally to adjust the gap; after the blade height and gap are adjusted to the correct position, the blade height adjustment push-pull device 161 and the gap adjustment push-pull device 194 remain in the positioning state, the piston rod of the shear adjustment push-pull device 185 retracts and maintains a certain pulling force to press the blade, and the blade adjustment is completed. The blade height adjustment push-pull device 161, the shearing adjustment push-pull device 185, and the gap adjustment push-pull device 194 are all equipped with displacement sensors to control the adjustment amount.

[0058] Intelligent control shearing adjustment method during movement: During actual shearing, the upper and lower shear blades are close to the thickness of the steel plate. After shearing near the center line, they quickly retract to prevent the steel plate from being raised or lowered and deformed, or the upper and lower shear blades from interfering with each other. This realizes an intelligent control adjustment method for shearing irregular-shaped steel.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-functional flying shear, comprising a flying shear body (100), the flying shear body (100) comprising an upper drum (111) supported at both ends on an upper support base and a lower drum (121) supported at both ends on a lower support base, wherein both the upper and lower support bases are connected to a lifter (130) to enable them to move up and down relative to a frame, characterized in that: Multiple sets of blades are provided circumferentially at intervals between the upper drum (111) and the lower drum (121) to enable online selection of matching blades. The blades are connected to a height adjustment device (160) for adjusting the blade overlap, a gap adjustment device for adjusting the blade gap, and a shearing adjustment device (180) for adjusting the blade opening, so as to achieve automatic blade adjustment. The shearing adjustment device (180) and the gap adjustment device are located on both sides of the blade. The shearing adjustment device (180) includes a clamping inclined plate (181) slidably connected to the blade, a connecting rod (182) with one end slidably hinged to the clamping inclined plate (181), the other end of the connecting rod (182) being hinged to the blade, and a pull rod (183) being hinged to the middle of the connecting rod (182). The pull rod (183) is connected to a shearing adjustment push-pull device (185) to make the clamping inclined plate (181) move up and down. The height adjustment device (160) includes an upper inclined wedge (164) located below the blade and acting on the blade, a lower inclined wedge (163) matching the upper inclined wedge (164), a push-pull rod (162) connected to the lower inclined wedge (163), and a height adjustment push-pull device (161) connected to the push-pull rod (162); The gap adjustment device includes a positioning inclined plate (193) located on one side of the blade, an inclined pad (192) located between the blade and the positioning inclined plate (193) and slidably connected thereto, and a gap adjustment push-pull device (194) connected to the inclined pad (192). The gap adjustment push-pull device (194) and the positioning inclined plate (193) are installed on the corresponding upper drum (111) or lower drum (121).

2. The multifunctional flying shear according to claim 1, characterized in that: The working surface between the blade and the upper inclined wedge (164) is an arc surface or a plane.

3. The multi-functional flying shear according to claim 1, characterized in that: The gap adjustment device also includes a pushing mechanism, which includes a slide rod that is slidably connected to the positioning inclined plate (193) and one end extends toward the blade, a pushing block located at the front end of the slide rod and acting on the blade, and a spring sleeved on the slide rod and located between the pushing block and the positioning inclined plate (193). A limiting member is provided at the rear end of the slide rod to prevent the slide rod from falling off the positioning inclined plate (193).

4. The multi-functional flying shear according to claim 1, characterized in that: A balance positioning device (150) for upper and lower drums is provided between the upper drum (111) and the lower drum (121). The balance positioning device (150) is located at both ends of the drum and includes a slide rod with one end fixedly connected to the lower support seat and the other end of the slide rod slidably connected to the upper support seat. A spring is sleeved on the slide rod and the spring is located between the upper support seat and the lower support seat.

5. A multi-functional flying shear according to claim 1, characterized in that: The height adjustment device (160), the gap adjustment device, and the shear adjustment device (180) are all equipped with displacement sensors.

6. A method for adjusting a multi-functional flying shear, characterized in that: A multi-functional flying shear as described in any one of claims 1 to 5 is provided, wherein when shearing brittle steel, the upper and lower shear blades retract rapidly after approaching the center line of the workpiece to be sheared, in order to prevent deformation caused by lifting or pressing down the workpiece.

7. The adjustment method for a multi-functional flying shear according to claim 6, characterized in that: The type and quantity of blades are matched with production needs to enable online automatic selection of matching blades based on production requirements.

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