A type of horizontal shearing and leveling flying shear equipment

Abstract

The present application relates to the technical field of steel coil processing, and particularly relates to a transverse shearing and flattening flying shearing device, which is characterized by comprising, in sequence and side by side, a decoiling device, a pinch shearing bed, a front film laminating machine, a flattening machine, a rear film laminating machine, a pinch sizing machine, a flying shearing machine, a conveying device and a stacking device. The present application can not only make the transfer of the steel coil extremely accurate and stable, but also greatly reduce the probability of scratches or scratches in the steel coil processing process, and can make the shearing of the steel coil extremely accurate and stable, which can greatly improve the quality of the steel coil processing.

Description

Technical Field

[0001] This invention relates to the field of steel coil processing technology, and in particular to a cross-cutting and leveling flying shear device. Background Technology

[0002] Chinese patent document CN215146675U discloses a technical solution entitled "A Coil Flying Shear Stacking Device," which includes the following technical features: an uncoiler, a leveler, a laminator, a flying shear, and a stacking machine arranged side-by-side from right to left. In this solution, the uncoiler directly feeds the steel coil to the leveler. Because the diameter of the steel coil gradually decreases during the uncoiler's output process, the output speed of the steel coil is prone to variation. This not only leads to lower accuracy in steel coil transfer but also lower accuracy in the flying shear's cutting, and the steel coil is easily scratched or damaged during the leveling process of the leveler, significantly affecting the quality of steel coil processing. Therefore, it is essential to design a cross-cutting, leveling, and flying shear device to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and deficiencies, and to provide a cross-cutting and leveling flying shear device. This cross-cutting and leveling flying shear device can not only make the transfer of steel coils extremely accurate and stable, but also greatly reduce the probability of scratches or abrasions during the processing of steel coils, and make the cutting of steel coils very accurate and stable, which can greatly improve the quality of steel coil processing.

[0004] The technical solution of this invention is implemented as follows:

[0005] A cross-cutting and leveling flying shear device is characterized by comprising an unwinding device, a clamping shear, a front laminator, a leveler, a rear laminator, a clamping and sizing machine, a flying shear, a conveying device, and a stacking device arranged side-by-side. The unwinding device includes a material preparation cart, a transfer cart, and an unwinding machine. The material preparation cart is located beside the unwinding machine and has two support positions for placing steel coils. The transfer cart can reciprocate between the material preparation cart and the unwinding machine, allowing it to remove steel coils from either support position and place them on the unwinding machine, and also to remove steel coils from the unwinding machine and place them on either support position. The clamping shear includes a roller clamping mechanism and a lifting shearing mechanism arranged side-by-side along the steel coil conveying direction. The lifting shearing mechanism includes a fixed frame, a lifting frame, an upper blade, a lower blade, and an elastic pressing mechanism. The fixed frame is equipped with a material support platform. The lifting frame is vertically movable on the fixed frame. The elastic pressing mechanism and the upper cutting strip are arranged side by side on the lifting frame along the steel coil conveying direction, and the elastic pressing mechanism can move downward with the lifting frame and elastically press against the material support platform. The lower cutting strip is arranged on the side wall of the material support platform opposite to the upper cutting strip, and the lower cutting strip and the upper cutting strip can cut the steel coil together. The clamping and feeding machine includes a mounting frame, a drive motor, a gear transmission box, and a transfer roller group. The gear transmission box is equipped with two synchronously rotating power output shafts. The drive motor and the gear transmission box are arranged on or beside the mounting frame, and the input end of the gear transmission box is connected to the drive motor. The transfer roller group includes two transfer rollers, which are arranged parallel to each other on the mounting frame, and the two transfer rollers are respectively connected to the two power output shafts.

[0006] Preferably, the unwinding shaft of the unwinding machine is arranged longitudinally facing forward, and the material preparation cart is arranged on the front side of the unwinding machine. The material preparation cart includes a transverse moving frame and a first hydraulic cylinder. The transverse moving frame is connected to the movable end of the first hydraulic cylinder, enabling the first hydraulic cylinder to drive the transverse moving frame to perform transverse reciprocating motion. The two material support positions are V-shaped material support notches opened side by side on the rear end of the transverse moving frame. The transfer cart includes a longitudinal moving frame, a lifting drive mechanism, and a material support frame. The longitudinal moving frame can perform longitudinal reciprocating motion between the V-shaped material support notch and the unwinding machine. The lifting drive mechanism is set on the longitudinal moving frame, and the material support frame is set on the lifting end of the lifting drive mechanism, enabling the material support frame to move up and down and longitudinally enter and exit either of the V-shaped material support notches.

[0007] Preferably, the pre-coating machine includes a frame, a coating roller pressing assembly, an unwinding roller, and a swing positioning mechanism. The coating roller pressing assembly is mounted on the frame. One end of the unwinding roller is rotatably mounted on the frame. A positioning protrusion is provided on the outer circumferential surface of one end of the unwinding roller. A small shaft is provided on the end face of the other end of the unwinding roller. A guide cone extending to the small shaft is provided on the corner of the other end of the unwinding roller. The outer end of the small shaft is a frustum end that is smaller on the outside and larger on the inside. The swing positioning mechanism is mounted on the frame. A fitting hole matching the frustum end is provided on the swing end of the swing positioning mechanism. The fitting hole can reciprocate away from and towards the frustum end as the swing end of the swing positioning mechanism swings. The fitting hole can also be rotatably fitted onto the frustum end.

[0008] Preferably, the post-coating machine includes a roller pressing mechanism, an upper film feeding mechanism, and a lower film feeding mechanism, wherein the upper film feeding mechanism and the lower film feeding mechanism are respectively arranged in the vertical direction at the rollers of the roller pressing mechanism.

[0009] Preferably, the conveying device includes a positioning bracket, a swing frame, a drive cylinder, and a conveyor belt assembly. One end of the swing frame is hinged to the positioning bracket, allowing the other end of the swing frame to swing up and down. One end of the drive cylinder is hinged to the positioning bracket, and the other end of the drive cylinder is hinged to the other end of the swing frame, allowing the drive cylinder to drive the other end of the swing frame to swing up and down reciprocally. The conveyor belt assembly is mounted on the swing frame, with its input end located at one end of the swing frame and its output end located at the other end of the swing frame. The stacking device includes a scrap car and two stacking machines. One of the stacking machines is used to stack long steel plates, and the other is used to stack short steel plates. The input ends of the two stacking machines and the scrap car are arranged vertically side by side from top to bottom on one side of the output end of the conveyor belt assembly. The output end of the conveyor belt assembly can be driven by the drive cylinder to face the input ends of the two stacking machines and the scrap car, respectively, and the output end of the conveyor belt assembly can convey steel plates to the input ends of the two stacking machines and the scrap car.

[0010] Preferably, the stacking machine includes a conveyor belt device, a blocking mechanism, and a discharging device. The blocking mechanism is provided with a stacking cavity. The input end of the conveyor belt device can receive steel plates from the output end of the conveyor belt assembly, and the output end of the conveyor belt device can convey steel plates into the stacking cavity. The discharging device includes a lifting mechanism, a first receiving and feeding mechanism, and a second receiving and feeding mechanism. The lifting mechanism is arranged in or beside the stacking cavity. Both the first and second receiving and feeding mechanisms are horizontal receiving and feeding mechanisms. The first receiving and feeding mechanism is arranged in the stacking cavity and is connected to the lifting end of the lifting mechanism. The second receiving and feeding mechanism is arranged beside the first receiving and feeding mechanism and can horizontally receive the material horizontally moved by the first receiving and feeding mechanism.

[0011] Preferably, the first feeding mechanism includes a first motor and at least one set of first support rollers. The first motor is mounted on the lifting end of the lifting mechanism. The first support roller set includes a plurality of first support rollers, which are arranged horizontally side by side on the lifting end of the lifting mechanism and are parallel to each other. At least one first support roller is driven and connected to the first motor. The second feeding mechanism includes a positioning frame, a second motor, and at least one set of second support rollers. The second motor is mounted on the positioning frame. The second support roller set includes a plurality of second support rollers, which are arranged horizontally side by side on the top of the positioning frame and are parallel to each other. At least one second support roller is driven and connected to the second motor.

[0012] The beneficial effects of this invention are as follows: In this cross-cutting and leveling flying shear equipment, the unwinding device, clamping shear, front laminator, leveler, rear laminator, clamping length cutter, flying shear, conveying device, and stacking device are arranged side by side in sequence. This allows the clamping shear to achieve accurate and stable conveying of steel coils, thereby ensuring that the lamination of the front laminator, the leveling of the leveler, and the lamination of the rear laminator can all be carried out accurately and stably, thus ensuring high quality in both lamination and leveling. The clamping shear can also cut from the beginning and end of the unwinding of the steel coil. This not only facilitates the cutting and handling of poor-quality end materials, but also allows for the unloading of the previous steel coil and the installation of the next coil during the time between cutting the previous coil and the completion of stacking by the stacking device when the steel coil on the unwinding device is not fully unwound and another coil needs to be processed. This greatly reduces equipment downtime and thus improves production efficiency. A pre-coating machine protects the steel coils by coating them, preventing scratches or damage from the leveling machine. A post-coating machine further protects the coils, preventing scratches or damage during subsequent processing and providing protection during use, thus effectively improving the production quality. A clamping and length-setting machine ensures accurate and stable coil transfer, significantly improving the stability and accuracy of the coil delivery to the flying shear, which in turn ensures accurate and stable shearing, greatly enhancing the shearing quality. A conveying device not only facilitates the accurate and stable entry of the sheared steel sheets into the stacking device but also delays the time it takes for the sheets to enter the stacking process. This allows workers to observe the quality of the steel sheets or use instruments for inspection, enabling the removal of defective or scrap products, ensuring high output quality and accurate and stable stacking. Therefore, this cross-cutting and leveling flying shear equipment not only enables extremely accurate and stable transfer of steel coils, but also greatly reduces the probability of scratches or abrasions during steel coil processing, and enables very accurate and stable shearing of steel coils, which can greatly improve the quality of steel coil processing. Attached Figure Description

[0013] Figure 1 This is a top-view structural diagram of the horizontal shearing and leveling flying shear equipment of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the cross-cutting and leveling flying shear equipment in this invention from the main view direction.

[0015] Figure 3 This is a schematic diagram of the material preparation vehicle in this invention.

[0016] Figure 4 This is a schematic diagram of the transfer vehicle in this invention.

[0017] Figure 5 This is a schematic diagram of the clamping shearing machine in this invention.

[0018] Figure 6 This is a schematic diagram of the elastic pressing mechanism in this invention.

[0019] Figure 7 This is a schematic diagram of the front coating machine in this invention.

[0020] Figure 8 This is a schematic diagram of the coating roller pressing assembly in this invention.

[0021] Figure 9 This is a schematic diagram of the overall structure of the unwinding roller and the swing positioning mechanism assembled in this invention.

[0022] Figure 10 This is a partial structural diagram of the assembly of the unwinding roller and the swing positioning mechanism in this invention.

[0023] Figure 11 This is a schematic diagram of the assembly structure of the post-coating machine and the clamping and length-setting machine in this invention.

[0024] Figure 12 This is a schematic diagram of the assembly of the clamping and length-setting machine and the protective net in this invention.

[0025] Figure 13 This is one of the structural schematic diagrams of the clamping and length-setting machine in this invention.

[0026] Figure 14 This is the second schematic diagram of the clamping and length-setting machine in this invention.

[0027] Figure 15 This is a cross-sectional view of the transfer roller in this invention.

[0028] Figure 16 This is a schematic diagram of the conveying device and part of the stacking device in this invention.

[0029] Figure 17 This is a schematic diagram of the stacking device in this invention.

[0030] Figure 18 This is a side view of the structure of the discharge device in this invention.

[0031] Figure 19 This is a top view of the structure of the discharge device in this invention.

[0032] Figure 20 This is a schematic diagram of the structure of the first feeding mechanism in this invention. Detailed Implementation

[0033] like Figure 1 and Figure 2 As shown, the cross-cutting and leveling flying shear equipment of the present invention includes an unwinding device 1, a clamping shear bed 2, a front laminating machine 3, a leveling machine 4, a rear laminating machine 5, a clamping and length-setting machine 6, a flying shear 7, a conveying device 8, and a stacking device 9 arranged in sequence side by side.

[0034] The horizontal shearing and leveling flying shear equipment consists of an unwinding device 1, a clamping shear bed 2, a front laminating machine 3, a leveling machine 4, a rear laminating machine 5, a clamping and length-setting machine 6, a flying shear 7, a conveying device 8, and a stacking device 9, arranged in a row. This allows the clamping shear 2 to accurately and stably convey steel coils, ensuring that the laminating of the front laminating machine 3, the leveling of the leveling machine 4, and the laminating of the rear laminating machine 5 are all carried out accurately and stably, thus ensuring high quality in both lamination and leveling. The clamping shear 2 can also cut the steel coil at the beginning and end of its unwinding process. This not only facilitates the cutting and handling of poor-quality end materials, but also allows for the unloading of the previous coil and installation of the next coil during the time between cutting the previous coil and stacking the next coil on the unwinding device 1 when the coil on the unwinding device 1 is not fully unwound and another coil needs to be processed. This significantly reduces equipment downtime and improves production efficiency.

[0035] The front laminating machine 3 protects the steel coil by applying a protective film, thus preventing the leveling machine 4 from scratching or damaging it. The rear laminating machine 5 further protects the steel coil, not only preventing scratches or damage during subsequent processing but also providing protection during use, thereby effectively improving the production quality of the steel coil.

[0036] The clamping and length-fixing machine 6 is set up, which makes the transfer of steel coils very accurate and stable, thereby greatly improving the stability and accuracy of the steel coils being fed to the flying shear machine 7, and in turn, making the cutting of the flying shear machine 7 very accurate and stable, which greatly improves the cutting quality of the flying shear machine 7.

[0037] The conveying device 8 not only facilitates the accurate and stable entry of the sheared steel plates into the stacking device 9, but also delays the time it takes for the steel plates to enter the stacking process. This allows workers to observe the quality of the steel plates or inspect them with instruments during this time, so that workers can remove defective or scrap products. This helps to ensure that the output quality is very high and that the stacking is very accurate and stable.

[0038] Therefore, this cross-cutting and leveling flying shear equipment not only enables extremely accurate and stable transfer of steel coils, but also greatly reduces the probability of scratches or abrasions during steel coil processing, and enables very accurate and stable shearing of steel coils, which can greatly improve the quality of steel coil processing.

[0039] like Figures 1 to 3 As shown, the uncoiling device 1 includes a preparation cart 11, a transfer cart 12, and an uncoiling machine 13. The preparation cart 11 is arranged beside the uncoiling machine 13, and has two support positions 111 for placing steel coils. The transfer cart 12 can reciprocate between the preparation cart 11 and the uncoiling machine 13, allowing it to remove steel coils from either of the two support positions 111 and place them on the uncoiling machine 13, and also to remove steel coils from the uncoiling machine 13 and place them on either support position 111. This facilitates rapid loading and unloading of steel coils, thereby greatly improving production efficiency.

[0040] like Figures 1 to 4 As shown, the unwinding shaft 131 of the unwinding machine 13 is arranged longitudinally forward. The material preparation cart 11 is arranged on the front side of the unwinding machine 13. The material preparation cart 11 includes a transverse moving frame 112 and a first hydraulic cylinder 113. The transverse moving frame 112 is connected to the movable end of the first hydraulic cylinder 113, enabling the first hydraulic cylinder 113 to drive the transverse moving frame 112 to perform transverse reciprocating motion. The two material support positions 111 are V-shaped material support notches opened side by side on the rear end of the transverse moving frame 112. The transfer cart 12 includes a longitudinal moving frame 121, a lifting drive mechanism 122, and a material support frame 123. The longitudinal moving frame 121 can perform longitudinal reciprocating motion between the V-shaped material support notch and the unwinding machine 13. The lifting drive mechanism 122 is set on the longitudinal moving frame 121. The material support frame 123 is set on the lifting end of the lifting drive mechanism 122, enabling the material support frame 123 to move up and down and longitudinally enter and exit any one of the V-shaped material support notches. Such a material preparation vehicle 11 and transfer vehicle 12 are very simple and reliable. They can not only accurately position the steel coil, but also accurately transfer the steel coil, thereby helping to further improve the speed and accuracy of steel coil loading and unloading, and thus improve production safety and efficiency.

[0041] like Figure 1 and Figure 3As shown, the transverse moving frame 112 is limited and guided by limiting rollers 114 and transverse guide rails 115. Specifically, two transverse guide rails 115 are arranged side by side. Several first limiting rollers 114 are respectively set on the front and rear ends of the transverse moving frame 112, and the front and rear first limiting rollers 114 are respectively rolled and locked onto the front and rear transverse guide rails 115. The middle of the rear transverse guide rail 115 is broken to form a clearance gap for the material support frame 123 to pass through. This ensures that the transverse moving frame 112 moves very accurately and stably, thereby ensuring that the steel coil transfer is very accurate and stable.

[0042] like Figure 1 , Figure 2 and Figure 4 As shown, a longitudinal guide rail 124 is provided between the material preparation cart 11 and the unwinding machine 13. Traveling rollers 125 are provided on the longitudinal moving frame 121, and the traveling rollers 125 are driven by a first motor 126 mounted on the longitudinal moving frame 121. The lifting drive mechanism 122 uses a hydraulic cylinder for lifting, and the material support frame 123 uses two longitudinally arranged material support rollers 1231 to support the steel coil. This not only facilitates manufacturing but also ensures highly accurate and stable longitudinal transfer of the steel coil, thereby contributing to further improving the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0043] like Figure 1 and Figure 2 As shown, the unwinding shaft 131 is rotatably connected at its rear end and suspended at its front end. A swing support mechanism 14 is provided on the side of the unwinding machine 13. The swing support mechanism 14 is driven by a hydraulic cylinder to swing a bracket to support the front end of the unwinding shaft 131. Rollers are provided on the swing end of the swing bracket to roll in contact with the unwinding shaft 131. This not only allows the unwinding shaft 131 to support the unwinding very stably, but also facilitates the loading and unloading of the steel coil, thus better meeting the needs of practical use.

[0044] like Figure 1 and Figure 2 As shown, at least one paper take-up machine 15 is arranged on the side of the unwinder 13, and the paper take-up machine 15 is located on the side of the unwinder 13 away from the clamping shear bed 2. This can take up the release paper on the steel coil, thereby improving the convenience of release paper recycling management.

[0045] like Figure 5As shown, the clamping shearing machine 2 includes a double-roller clamping mechanism 21 and a lifting shearing mechanism 22 arranged side-by-side along the steel coil conveying direction. The lifting shearing mechanism 22 includes a fixed frame 221, a lifting frame 222, an upper blade 223, a lower blade 224, and an elastic pressing mechanism 225. A material support platform 226 is provided on the fixed frame 221. The lifting frame 222 is vertically movable on the fixed frame 221. The elastic pressing mechanism 225 and the upper blade 223 are arranged side-by-side on the lifting frame 222 along the steel coil conveying direction, and the elastic pressing mechanism 225 can move downward with the lifting frame 222 and elastically press against the material support platform 226. The lower blade 224 is provided on the side wall of the material support platform 226 opposite to the upper blade 223, and the lower blade 224 and the upper blade 223 can jointly cut the steel coil. The use of the double-roller clamping mechanism 21 can significantly improve the accuracy and stability of steel coil transfer. The use of the elastic pressing mechanism 225 allows the steel coil to be elastically pressed during the shearing process of the lifting shearing mechanism 22, which facilitates a smoother and more accurate shearing process and helps to further improve the quality of shearing.

[0046] like Figure 5 and Figure 6 As shown, the elastic pressing mechanism 225 includes a positioning block 2251, a vertical shaft 2252, a spring 2253, a pressing block 2254, and at least one anti-fall nut 2255. The positioning block 2251 is disposed on the side wall of the lifting frame 222. The upper end of the vertical shaft 2252 is vertically slidably disposed through the positioning block 2251. The anti-fall nut 2255 is threadedly fitted onto the upper end of the vertical shaft 2252 that extends out of the positioning block 2251. The anti-fall nut 2255 can prevent... The vertical shaft 2252 is disengaged downwards from the positioning block 2251. The spring 2253 is fitted onto the vertical shaft 2252 below the positioning block 2251. The pressure block 2254 is positioned on the lower end of the vertical shaft 2252, and the upper and lower ends of the spring 2253 elastically press against the bottom surface of the positioning block 2251 and the top surface of the pressure block 2254, respectively. A rubber pad 2256 is provided on the bottom surface of the pressure block 2254, and the rubber pad 2256 is positioned directly above the material support platform 226. This elastic pressure mechanism 225 is very simple and reliable. It is not only easy to manufacture, but also achieves a very stable and reliable elastic pressure effect, and can avoid damage when shearing normal steel coils. This helps to further improve the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0047] like Figure 7 , Figure 9 and Figure 10As shown, the pre-coating machine 3 includes a frame 31, a coating roller pressing assembly 32, an unwinding roller 33, and a swing positioning mechanism 34. The coating roller pressing assembly 32 is mounted on the frame 31. One end of the unwinding roller 33 is rotatably mounted on the frame 31. A positioning protrusion 331 is provided on the outer circumferential surface of one end of the unwinding roller 33. A small shaft portion 332 is provided on the end face of the other end of the unwinding roller 33. An extension to the small shaft portion 33 is provided on the corner of the other end of the unwinding roller 33. The guide cone surface 333 on the 2nd section, the outer end of the small shaft portion 332 is a frustoconical end 334 with a smaller outer diameter and a larger inner diameter, the swing positioning mechanism 34 is mounted on the frame 31, the swing end of the swing positioning mechanism 34 is provided with a fitting hole 341 that matches the frustoconical end 334, and the fitting hole 341 can reciprocate away from and towards the frustoconical end 334 with the swing end of the swing positioning mechanism 34, and the fitting hole 341 can be rotatably fitted onto the frustoconical end 334. By providing a small shaft portion 332 on the other end face of the unwinding roller 33, and providing a guide cone surface 333 extending to the small shaft portion 332 on the corner of the other end of the unwinding roller 33, and making the outer end of the small shaft portion 332 a frustoconical end 334 with a smaller outer diameter and a larger inner diameter, this not only greatly facilitates the fitting of the unwinding roller 33 to the end of the paper tube, but also reduces the probability of the end folding during the paper tube fitting process, which greatly improves the convenience of protective film roll installation. By providing a positioning protrusion 331 on the outer circumferential surface of one end of the unwinding roller 33, the positioning protrusion 331 can quickly and accurately define the installation position of the protective film roll, thereby improving the convenience and accuracy of the protective film roll installation and positioning. The swing positioning mechanism 34 not only achieves accurate and stable positioning of the other end of the unwinding roller 33, but also prevents the swing positioning mechanism 34 from affecting the installation process of the protective film roll. This type of cross-cutting and leveling flying shear equipment has very high reliability and applicability.

[0048] like Figure 7 and Figure 10As shown, the swing positioning mechanism 34 includes a swing rod 342, a limiting rod 343, a locking screw 344, and a limiting block 345. One end of the swing rod 342 is hinged to the frame 31, and the fitting hole 341 is opened on the other end of the swing rod 342. The limiting rod 343 and the limiting block 345 are respectively arranged on both sides of the swing direction of the swing rod 342, and the limiting block 345 is fixed to the frame 31. One end of the limiting rod 343 is also hinged to the frame 31, and the limiting rod 343 can swing in and out of the swing area of ​​the swing rod 342. The locking screw 344 is screwed to the limiting rod 343, and the locking screw 344 and the limiting block 345 can clamp and position the swing rod 342 together. This swing positioning mechanism 34 is highly reliable. When the swing rod 342 is clamped and positioned by the locking screw 344 and the limiting block 345, the fitting hole on the swing rod 342 fits onto the frustum end 334, thus achieving stable positioning of the unwinding roller 33. Furthermore, this swing positioning mechanism 34 is very convenient to operate, which improves ease of use.

[0049] The other end of the limiting rod 343 can swing in and out of the swing area of ​​the swing rod 342, and the locking screw 344 is screwed onto the other end of the limiting rod 343. When the other end of the limiting rod 343 swings into the swing area of ​​the swing rod 342, the limiting rod 343 can prevent the swing rod 342 from swinging away from the limiting block 345. At this time, the locking screw 344 can press against the surface of the swing rod 342 away from the limiting block 345. This not only meets the normal swing requirements of the swing rod 342 and the limiting rod 343, but also helps to stably limit the swing rod 342, thereby meeting the needs of practical use.

[0050] like Figure 10 As shown, the mounting hole 341 is formed by the inner hole of the bearing 3411 embedded in the swing rod body 342, and the inner hole of the bearing 3411 is a tapered hole that matches the frustum end 334. This allows the unwinding roller 33 to rotate very smoothly, thereby improving the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0051] like Figures 7 to 10As shown, the frame 31 includes a support frame 311 and a sliding frame 312. An adjusting screw 313 is mounted on the support frame 311. The sliding frame 312 is horizontally slidable on the support frame 311 and is screwed to the adjusting screw 313. The coating roller assembly 32 is mounted on the support frame 311. One end of the unwinding roller 33 is rotatably mounted on the sliding frame 312. The swing positioning mechanism 34 is mounted on the sliding frame 312. This allows for adjustment of the position of the unwinding roller 33, which not only corrects for errors in component processing and assembly but also facilitates matching the position of the steel coil, thus better meeting the needs of actual use.

[0052] like Figure 10 As shown, the sliding frame 312 and the support frame 311 are horizontally slidable by a linear slide rail 3121, which can meet the requirements of stable assembly and sliding.

[0053] like Figure 7 and Figure 8 As shown, the film coating roller assembly 32 includes a limiting frame 321, a lower film coating roller 322, an upper film coating roller 323, and at least one lifting hydraulic cylinder 324. The lifting hydraulic cylinder 324 is vertically mounted on a support frame 311. The limiting frame 321 is vertically slidably mounted on the support frame 311 and is driven to connect with the lifting hydraulic cylinder 324. The lower film coating roller 322 is rotatably mounted horizontally on the support frame 311. The upper film coating roller 323 is horizontally arranged above the lower film coating roller 322 and is rotatably connected with the limiting frame 321. The upper film coating roller 323 is parallel to the lower film coating roller 322 and can reciprocate towards and away from the lower film coating roller 322 under the drive of the lifting hydraulic cylinder 324. This coating roller assembly 32 can not only coat steel coils of different thicknesses, but also adjust the coating pressure, thereby facilitating the achievement of different coating effects and further improving the applicability of the cross-cutting and leveling flying shear equipment.

[0054] like Figure 7As shown, a swingable support frame 35 is hinged to the side wall of the support frame 311, and the support frame 35 is located on the input end side of the coating roller assembly 32. Several horizontally arranged first guide rollers 351 are provided on the top surface of the support frame 35, and the first guide rollers 351 are parallel to each other. A drive cylinder 352 is arranged below the support frame 35, and both ends of the drive cylinder 352 are hinged to the side wall of the support frame 311 and the bottom of the support frame 35, respectively. This allows the steel coil to enter the coating roller assembly 32 more smoothly, thereby improving the stability of coating and thus improving the coating quality. The swinging of the support frame 35 by the drive cylinder 352 frees up operating space beside the cross-cutting and leveling flying shear equipment, which not only facilitates the placement of the film roll but also facilitates maintenance operations. This helps to further improve the applicability of the cross-cutting and leveling flying shear equipment.

[0055] like Figure 7 As shown, in the actual manufacturing process, the highest point of each first guide roller 351 and the highest point of the coating roller 322 are in the same horizontal plane. This helps the steel coil to enter the coating roller pressing assembly 32 more smoothly, thereby further improving the coating quality.

[0056] like Figure 7 As shown, a guide roller 314 is provided on the support frame 311, and the guide roller 314 is located between the unwinding roller 33 and the rolling part of the coating roller pressing assembly 32. The guide roller 314 can be used to guide the protective film, which can greatly reduce the influence of the coating roller pressing assembly 32 on the installation position of the unwinding roller 33, thereby facilitating the installation and positioning of the unwinding roller 33.

[0057] like Figure 7 As shown, in actual use, the protective film roll 100 is mounted on the unwinding roller 33, so that the end of the protective film 101 on the protective film roll 100 passes around the guide roller 314 and enters between the lower coating roller 322 and the upper coating roller 323. When the steel roll enters between the lower coating roller 322 and the upper coating roller 323, the protective film roll can be pressed onto the steel roll, thereby meeting the coating requirements.

[0058] like Figure 9 As shown, one end of the unwinding roller 33 passes through the sliding frame 312, and a counterweight wheel 335 is fitted onto the end of the unwinding roller 33 that passes through the sliding frame 312. This allows the counterweight wheel 335 to counteract the gravity on the other end of the unwinding roller 33 when the swing positioning mechanism 34 swings away from the other end of the unwinding roller 33, so that the unwinding roller 33 can be stably kept in a horizontal state. This helps to reduce the probability of deformation of related components, and further improves the reliability of the cross-cutting and leveling flying shear equipment.

[0059] like Figure 2 and Figure 7 As shown, a guide frame 36 is provided on the side wall of the leveling machine 4, and the guide frame 36 faces the output end of the coating roller pressing assembly 32. Several horizontally arranged second guide rollers 361 are provided on the top surface of the guide frame 36, and the second guide rollers 361 are parallel to each other. In this way, the second guide rollers 361 can guide the coated steel coil horizontally and stably onto the leveling machine 4, thereby ensuring that the transfer of the steel coil is very smooth and avoiding adverse effects on the coating, which helps to improve the coating quality.

[0060] like Figure 11 As shown, the post-coating machine 5 includes a roller pressing mechanism 51, an upper film feeding mechanism 52, and a lower film feeding mechanism 53. The upper film feeding mechanism 52 and the lower film feeding mechanism 53 are respectively arranged in the vertical direction at the rollers of the roller pressing mechanism 51. This allows for simultaneous coating of the steel coil from both the top and bottom, which not only improves coating efficiency but also gives the post-coating machine 5 a simple and reliable structure, making it easier to produce higher quality steel plates. This further enhances the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0061] like Figures 11 to 13 As shown, the clamping and length-setting machine 6 includes a mounting frame 61, a drive motor 62, a gear transmission box 63, and a transfer roller assembly 64. The gear transmission box 63 has two synchronously rotating power output shafts 631. The drive motor 62 and gear transmission box 63 are mounted on or beside the mounting frame 61, with the input end of the gear transmission box 63 connected to the drive motor 62. The transfer roller assembly 64 includes two transfer rollers 641, which are arranged parallel to each other on the mounting frame 61 and are respectively connected to the two power output shafts 631. The use of the gear transmission box 63 ensures stable and reliable power transmission. A single drive motor 62 drives the gear transmission box 63, and two synchronously rotating power output shafts 631 are mounted on the gear transmission box 63, with the two transfer rollers 641 respectively connected to the two power output shafts 631. This not only greatly improves the synchronization of the rotation of the two transfer rollers 641, but also keeps the synchronization of the rotation of the two transfer rollers 641 at a high level for a long time. In this way, the cross-cutting and leveling flying shear equipment can maintain high transfer accuracy for a long time, which is conducive to keeping the steel coil production quality at a high level for a long time. It has very high reliability and applicability.

[0062] like Figure 12 and Figure 13 As shown, the two transfer rollers 641 are driven and connected to the two power output shafts 631 via ball-cage universal couplings 65. This not only reduces the processing and assembly difficulty of the relevant components, but also ensures that the power transmission is very stable and reliable, thereby helping to further improve the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0063] like Figure 14 As shown, the mounting frame 61 includes a fixed base 611, a movable frame 612, and a lifting driver 613. The lifting driver 613 is mounted on the fixed base 611, and the movable frame 612 is vertically movable on the fixed base 611, connecting with the lifting end of the lifting driver 613. Two transfer rollers 641 are arranged side-by-side, with the lower transfer roller 641 mounted on the fixed base 611 and the upper transfer roller 641 mounted on the movable frame 612. This arrangement allows for stable adjustment of the distance between the two transfer rollers 641, facilitating the transfer of steel coils of different thicknesses and thus expanding the applicability of the cross-cutting and leveling flying shear equipment.

[0064] like Figure 14 As shown, the lifting drive 613 is a vertically arranged drive cylinder, drive hydraulic cylinder, or electric push rod. The movable frame 612 is limited to the fixed base 611 by a vertically arranged linear guide rail 614, which can meet the needs of actual manufacturing and use.

[0065] like Figure 14 As shown, the mounting frame 61 is equipped with a limiting roller group 66 for rolling and clamping the end of the steel coil, and the limiting roller group 66 and the transfer roller group 64 are arranged side by side along the moving direction of the end of the steel coil. In this way, the limiting roller group 66 can limit the end of the steel coil before entering the transfer roller group 64, thereby facilitating a smoother entry of the end of the steel coil onto the transfer roller group 64, and thus improving the accuracy and stability of the transfer of the end of the steel coil.

[0066] like Figure 14 As shown, the limiting roller group 66 includes a lifting drive assembly 661 and two limiting rollers 662. The lifting drive assembly 661 is a drive cylinder, a hydraulic cylinder, or an electric push rod. The lifting drive assembly 661 is mounted on the mounting frame 61. The two limiting rollers 662 are arranged parallel to each other, with one limiting roller 662 mounted on the drive end of the lifting drive assembly 661 and the other limiting roller 662 mounted on the mounting frame 61. This allows the lifting drive assembly 661 to drive the connected limiting roller 662 to reciprocate, moving away from and towards the other limiting roller 662. This facilitates adjustment of the distance between the two limiting rollers 662, thereby enabling appropriate limiting of the ends of steel coils of different thicknesses, and thus helping to improve the applicability of this cross-cutting and leveling flying shear equipment.

[0067] like Figure 14As shown, in the actual manufacturing process, the lifting drive assembly 661 is vertically mounted on the fixed base 611, with the two limiting rollers 662 arranged side by side, one above the other. The upper limiting roller 662 is connected to the drive end of the lifting drive assembly 661 via the positioning bracket 663, while the lower limiting roller 662 is rotatably mounted on the fixed base 611. This satisfies the requirements of actual manufacturing and use, and ensures excellent performance.

[0068] like Figure 12 , Figure 13 and Figure 15 As shown, the transfer roller 641 includes a steel cylinder 6411 and two positioning steel shafts 6412. Positioning annular grooves 6410 are respectively provided on both ends of the steel cylinder 6411. One end of each of the two positioning steel shafts 6412 is embedded in one of the two positioning annular grooves 6410, and the other end of each positioning steel shaft 6412 is rotatably embedded in the mounting frame 61, with the other end of one of the positioning steel shafts 6412 being driven by a corresponding power output shaft 631. A rubber layer 6413 is provided on the circumferential surface of the steel cylinder 6411. Using a steel cylinder 6411 not only controls the amount of material used but also gives the transfer roller 641 high structural strength. The rubber layer 6413 prevents damage to the ends of the steel coil; and when the ends of the steel coil are coated, it prevents damage to the coating layer. The positioning annular grooves 6410 facilitate accurate installation of the positioning steel shafts 6412, thus improving the convenience and accuracy of the positioning of the positioning steel shafts 6412. The use of a positioning steel shaft 6412 ensures better structural strength at the installation connection, thereby improving the stability and reliability of the installation connection. This contributes to further enhancing the reliability and applicability of the transfer roller 641.

[0069] like Figure 12 and Figure 13 As shown, in actual manufacturing, the input end of the gearbox 63 can be connected to the drive motor 62 via a gearbox 67; the input end of the gearbox 63 and the output end of the gearbox 67 can be connected via a perforated coupling 671; a fixed bracket 68 can be used to support the gearbox 63 and gearbox 67 arranged side by side; and a protective net 69 can be provided on or beside the fixed bracket 68 to shield the gearbox 63, the transmission connection between the gearbox 63 and gearbox 67, and the transmission connection between the gearbox 63 and the transfer roller 641. This improves performance, better meets the needs of actual use, and ensures safety.

[0070] like Figure 16As shown, the conveying device 8 includes a positioning bracket 81, a swing frame 82, a drive cylinder 83, and a conveyor belt assembly 84. One end of the swing frame 82 is hinged to the positioning bracket 81, allowing the other end of the swing frame 82 to swing up and down. One end of the drive cylinder 83 is hinged to the positioning bracket 81, and the other end of the drive cylinder 83 is hinged to the other end of the swing frame 82, allowing the drive cylinder 83 to drive the other end of the swing frame 82 to swing up and down reciprocally. The conveyor belt assembly 84 is mounted on the swing frame 82, with the input end of the conveyor belt assembly 84 located at one end of the swing frame 82. The output end of component 84 is located on the other end of the swing frame 82; the stacking device 9 includes a scrap cart 91 and two stacking machines 92, one of which is used to stack long steel plates and the other is used to stack short steel plates. The input ends of the two stacking machines 92 and the scrap cart 91 are arranged vertically side by side from top to bottom on one side of the output end of the conveyor belt assembly 84, so that the output end of the conveyor belt assembly 84 can be driven by the drive cylinder 83 to move towards the input ends of the two stacking machines 92 and the scrap cart 91 respectively, and the output end of the conveyor belt assembly 84 can convey steel plates to the input ends of the two stacking machines 92 and the scrap cart 91. The conveyor belt assembly 84 is provided so that workers can observe the production quality of the steel plates. The swing frame 82 is driven by the hydraulic cylinder 83 to swing, and the conveyor belt assembly 84 is mounted on the swing frame 82. This assembly structure can adjust the conveying direction at the output end of the conveyor belt assembly 84, thereby facilitating the accurate conveying of steel plates to one of the stacking machines 92 or the scrap car 91, and greatly improving the convenience of material distribution. One of the two stacking machines 92 is used to stack long steel plates, and the other is used to stack short steel plates. This allows workers to select the appropriate stacking machine 92 according to the different lengths of steel plates. This not only meets the stacking needs of steel plates of different lengths, but also eliminates the need for a stacking machine 92 designed for long steel plates to be used for short steel plates, which greatly reduces operating costs. This arrangement of the scrap car 91 allows for convenient and accurate receipt of scrap, thereby improving the convenience of scrap collection and management.

[0071] like Figure 16 As shown, the conveyor belt assembly 84 conveys materials laterally from left to right. At least one longitudinally arranged guide rail 911 is arranged below the input end of the stacker 92, with the front and / or rear ends of the guide rail 911 extending diagonally below the stacker 92. Several rolling wheels 912 are provided at the bottom of the waste cart 91, and these wheels are rolled and embedded in the guide rail 911. This not only improves the stability of the waste cart 91 during placement and material receiving but also facilitates accurate and safe movement of the waste cart 91, thereby enhancing the stability and safety of waste collection and processing.

[0072] like Figure 17 and Figure 18As shown, the stacking machine 92 includes a conveyor belt device 921, a blocking mechanism 922, and a discharge device 923. The blocking mechanism 922 is provided with a stacking cavity 924. The input end of the conveyor belt device 921 can receive steel plates from the output end of the conveyor belt assembly 84, and the output end of the conveyor belt device 921 can convey steel plates into the stacking cavity 924. The discharge device 923 includes a lifting mechanism 9231, a first receiving and feeding mechanism 9232, and a second receiving and feeding mechanism 9233. The lifting mechanism 9231... Arranged in or beside the stacking cavity 924, both the first feeding mechanism 9232 and the second feeding mechanism 9233 are horizontal feeding mechanisms. The first feeding mechanism 9232 is arranged in the stacking cavity 924 and is connected to the lifting end of the lifting mechanism 9231. The second feeding mechanism 9233 is arranged beside the first feeding mechanism 9232 and can horizontally receive the material horizontally transferred from the first feeding mechanism 9232. The conveyor belt device 921 facilitates the smooth feeding of steel plates into the stacking cavity 924, ensuring highly accurate feeding. The material blocking mechanism 922 attached to the stacking cavity 924 accurately and stably restrains the steel plates, greatly improving the accuracy and stability of steel plate stacking, and consequently, significantly improving the quality of steel plate stacking. The discharge device 923 employs a lifting mechanism 9231, a first receiving and feeding mechanism 9232, and a second receiving and feeding mechanism 9233. Both the first and second receiving and feeding mechanisms 9232 and 9233 are horizontal, ensuring smooth transport of the steel plate stack. By placing the first receiving and feeding mechanism 9232 on the lifting end of the lifting mechanism 9231 and arranging the second receiving and feeding mechanism 9233 beside the first receiving and feeding mechanism 9232, the second receiving and feeding mechanism 9233 can horizontally receive the material horizontally transported by the first receiving and feeding mechanism 9232. This design not only allows the first feeding mechanism 9232 and the lifting mechanism 9231 to meet the normal stacking requirements of steel plates, but also enables the coordinated operation of the lifting mechanism 9231, the first feeding mechanism 9232, and the second feeding mechanism 9233 to smoothly move the stacked steel plates from the stacking area to an unobstructed position above. This ensures a smooth and safe transfer process, facilitates packaging operations for workers, and allows workers to choose safer hoisting or horizontal movement methods to transfer the steel plate stacks, significantly reducing safety hazards during stack transfer. This further improves the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0073] like Figure 17 As shown, in the actual manufacturing process, the conveyor belt device 921 can be a single conveyor belt or multiple conveyor belts arranged sequentially in the direction of steel plate conveying, which can meet the needs of actual use.

[0074] like Figure 9 As shown, the material blocking mechanism 922 can adopt the material blocking mechanism in the applicant's prior application, which can not only meet the actual manufacturing needs, but also ensure that the material blocking is very accurate and stable, thereby ensuring that the stacking is very accurate and stable.

[0075] like Figures 18 to 20 As shown, the first feeding mechanism 9232 includes a first motor 9234 and at least one set of first support rollers 9235. The first motor 9234 is mounted on the lifting end of the lifting mechanism 9231. The first support rollers 9235 includes a plurality of first support rollers 9230. Each first support roller 9230 is horizontally arranged side by side on the lifting end of the lifting mechanism 9231, and each first support roller 9230 is parallel to each other. At least one first support roller 9230 is driven and connected to the first motor 9234. The second feeding mechanism 9233 includes a positioning frame 9236, a second motor 9237, and at least one set of second support rollers 9238. The second motor 9237 is mounted on the positioning frame 9236. The second support rollers 9238 include several second support rollers 9240, which are horizontally arranged side-by-side on the top of the positioning frame 9236, and are parallel to each other. At least one second support roller 9240 is driven by the second motor 9237. This first feeding mechanism 9232 and second feeding mechanism 9233 possess highly stable and reliable support capabilities. This not only improves the stability and reliability of the support but also increases the amount of support, thereby further enhancing the reliability and applicability of the cross-cutting and leveling flying shear equipment.

[0076] like Figure 18 As shown, one or two first support rollers 9230 positioned in the middle are driven and connected to the first motor 9234. This not only facilitates the stable conveying of steel plate stacks but also makes it easier to manufacture and assemble the first receiving and feeding mechanism 9232, thereby further improving the reliability and applicability of the first receiving and feeding mechanism 9232.

[0077] In actual manufacturing, the drive connection between the first support roller 9230 and the first motor 9234 can be achieved in the following ways: First, the end of the first support roller 9230 is driven to the power output shaft of the first motor 9234 via a coupling. Second, a drive connection is achieved via a transmission belt and pulley. Third, a transmission connection is achieved via a gear set. This can meet the needs of actual manufacturing and use.

[0078] like Figure 19As shown, there are two sets of the first support roller group 9235, which are arranged side by side, and each first support roller 9230 in the two sets of first support roller groups 9235 extends laterally. This first receiving and feeding mechanism 9232 not only facilitates the receiving and feeding of long steel plates, but also ensures that the transfer of long steel plate stacks is very stable.

[0079] like Figure 19 As shown, two adjacent first support rollers 9230 in each first support roller group 9235 can be connected together by chain drive, which can further improve the stability of the transmission.

[0080] like Figures 18 to 20 As shown, the lifting mechanism 9231 includes a base 9241, a lifting plate 9242, and at least one cross-folding frame 9243. The lifting plate 9242 is horizontally arranged above the base 9241. The cross-folding frame 9243 includes two cross rods 9244 and at least one hydraulic drive cylinder 9245. The two cross rods 9244 are arranged obliquely and cross each other, and their middle parts are hinged together. The two ends of the hydraulic drive cylinder 9245 are respectively hinged to the two cross rods 9244. On 244, the hydraulic drive cylinder 9245 can drive the two cross rods 9244 to fold and unfold; the cross folding frame 9243 is arranged between the lifting plate 9242 and the base 9241, and one end of the two cross rods 9244 is respectively hinged to the lifting plate 9242 and the base 9241, and the other end of the two cross rods 9244 can be horizontally slidably connected to the lifting plate 9242 and the base 9241, respectively. Each first support roller 9230 is horizontally arranged on the top surface of the lifting plate 9242. This not only gives the lifting mechanism 9231 a simple and easy-to-manufacture structure, but also gives the lifting mechanism 9231 a very stable and reliable support capacity, thereby improving the smoothness of the lifting action, and further helping to improve the reliability of the cross-cutting and leveling flying shear equipment. The horizontally arranged lifting plate 9242 can provide a very stable and reliable mounting position for the first support rollers 9230, which can improve the stability and reliability of the support.

[0081] like Figure 20 As shown, the first motor 9234 is located at the bottom of the lifting plate 9242, and the two sets of first support rollers 9235 are driven by the same first motor 9234. One or both of the first support rollers 9230 in the two sets of first support rollers 9235 are connected to the first motor 9234 via a chain. This reduces space occupation and manufacturing costs.

[0082] like Figure 20As shown, guide boxes 9246 are respectively provided on the top of the base 9241 and the bottom of the lifting plate 9242. Horizontal guide grooves 9247 are respectively opened on the side walls of the two guide boxes 9246. Rollers 9248 are respectively provided on the other ends of the two cross rods 9244, and the two rollers 9248 are respectively rolled and embedded in the corresponding horizontal guide grooves 9247. This provides stable and reliable guidance and limiting for the cross-folding frame 9243, thereby improving the smoothness of the lifting mechanism 9231's lifting action.

[0083] like Figure 18 As shown, one or two second support rollers 9240 on the side near the first receiving and feeding mechanism 9232 are driven and connected to the second motor 9237. This not only facilitates the stable receiving of steel plate stacks, but also makes it easier to manufacture and assemble the second receiving and feeding mechanism 9233, thereby further improving the reliability and applicability of the second receiving and feeding mechanism 9233.

[0084] The second support roller 9240, which is driven and connected to the second motor 9237, does not have to be the second support roller 9240 closest to the first feeding mechanism 9232, so that it can still meet the normal use requirements very well.

[0085] In actual manufacturing, the drive connection between the second support roller 9240 and the second motor 9237 can be achieved in the following ways: First, the end of the second support roller 9240 is driven to the power output shaft of the second motor 9237 via a coupling. Second, a drive connection is achieved via a transmission belt and pulley. Third, a transmission connection is achieved via a gear set. This can meet the needs of actual manufacturing and use.

[0086] like Figure 19 As shown, there are two sets of the second support roller group 9238, which are arranged side by side, and each second support roller 9240 in the two sets of second support roller groups 9238 extends laterally. This second feeding mechanism 9233 not only facilitates the feeding of long steel plates, but also ensures that the transfer of long steel plate stacks is very stable.

[0087] like Figure 19 As shown, two adjacent second support rollers 9240 in each group of second support rollers 9238 can be connected together by chain drive, which can further improve the stability of the transmission.

[0088] like Figure 18As shown, the second motor 9237 is mounted on the lower end of the positioning frame 9236. The two sets of second support rollers 9238 are driven by the same second motor 9237. One or both of the second support rollers 9240 in the two sets of second support rollers 9238 are connected to the second motor 9237 via a chain. This reduces space occupancy and manufacturing costs.

[0089] like Figure 18 As shown, a weighing module 9239 is provided at the bottom of the positioning frame 9236. This not only facilitates the quick determination of the weight of the steel plate stack, but also makes it easier to calculate the number of steel plates, thus bringing convenience to subsequent management and transportation.

[0090] In actual use, a support plate (which can be a support plate that can be used for hoisting, thus improving the convenience, stability and safety of hoisting) can be placed on the first support roller group 9235 first, and the steel plates can be stacked on the support plate. During the transfer, the first support roller group 9235 will transport the support plate and the stack of steel plates together to the second support roller group 9238, which can further improve the stability of the transfer.

Claims

1. A cross-cut levelling flying shear apparatus characterised in that: The application relates to a strip production line, which comprises, in sequence and side by side, a pay-off device (1), a pinch shear bed (2), a front film laminating machine (3), a leveling machine (4), a rear film laminating machine (5), a pinch sizing machine (6), a flying shear machine (7), a conveying device (8) and a stacking device (9). The pay-off device (1) comprises a material preparation trolley (11), a transfer trolley (12) and a pay-off machine (13), the material preparation trolley (11) is arranged beside the pay-off machine (13), two material supporting positions (111) for placing steel coils are arranged on the material preparation trolley (11), the transfer trolley (12) can reciprocate between the material preparation trolley (11) and the pay-off machine (13), the transfer trolley (12) can take a steel coil from any one of the two material supporting positions (111) and place the steel coil on the pay-off machine (13), and the transfer trolley (12) can take a steel coil from the pay-off machine (13) and place the steel coil on any one of the material supporting positions (111). The pinch shear bed (2) comprises, in sequence and side by side along the conveying direction of the steel coil, a pinch roller mechanism (21) and a lifting shearing mechanism (22). The lifting shearing mechanism (22) comprises a fixed frame (221), a lifting frame (222), an upper knife strip (223), a lower knife strip (224) and an elastic material pressing mechanism (225). A material supporting table (226) is arranged on the fixed frame (221), the lifting frame (222) is vertically movably arranged on the fixed frame (221), the elastic material pressing mechanism (225) and the upper knife strip (223) are arranged side by side on the lifting frame (222) along the conveying direction of the steel coil, the elastic material pressing mechanism (225) can be elastically pressed on the material supporting table (226) along with the lifting frame (222), the lower knife strip (224) is arranged on the side wall opposite to the upper knife strip (223) of the material supporting table (226), and the lower knife strip (224) and the upper knife strip (223) can jointly cut the steel coil. The pinch sizing machine (6) comprises a mounting frame (61), a driving motor (62), a gear transmission box (63) and a transfer roller group (64). Two power output shafts (631) are arranged on the gear transmission box (63) and rotate synchronously, the driving motor (62) and the gear transmission box (63) are arranged on or beside the mounting frame (61), the input end of the gear transmission box (63) is drivingly connected with the driving motor (62), and the transfer roller group (64) comprises two transfer rollers (641) which are arranged on the mounting frame (61) and are drivingly connected with the two power output shafts (631).

2. The cross-cut leveling flying shear apparatus of claim 1, wherein: The unwinding shaft (131) of the unwinding machine (13) is longitudinally arranged forwardly, the standby vehicle (11) is arranged at the front side of the unwinding machine (13), the standby vehicle (11) comprises a transverse moving frame body (112) and a first hydraulic cylinder (113), the transverse moving frame body (112) is connected with the movable end of the first hydraulic cylinder (113), and the first hydraulic cylinder (113) can drive the transverse moving frame body (112) to move transversely, two material supporting positions (111) are V-shaped material supporting notches arranged side by side on the rear end of the transverse moving frame body (112); the transfer vehicle (12) comprises a longitudinal moving frame body (121), a lifting driving mechanism (122) and a material supporting frame (123), the longitudinal moving frame body (121) can move longitudinally between the V-shaped material supporting notches and the unwinding machine (13), the lifting driving mechanism (122) is arranged on the longitudinal moving frame body (121), and the material supporting frame (123) is arranged on the lifting end of the lifting driving mechanism (122) and can be lifted in and out of and longitudinally in and out of any V-shaped material supporting notch.

3. The cross-cut leveling flying shear apparatus of claim 1, wherein: The front film covering machine (3) comprises a frame (31), a film covering and rolling assembly (32), an unwinding roller (33) and a swing positioning mechanism (34), the film covering and rolling assembly (32) is arranged on the frame (31), one end of the unwinding roller (33) is rotatably arranged on the frame (31), a positioning convex ring (331) is arranged on the outer circumferential surface of the one end of the unwinding roller (33), a small shaft part (332) is arranged on the end face of the other end of the unwinding roller (33), a guide conical surface (333) extending to the small shaft part (332) is arranged on the corner of the other end of the unwinding roller (33), the outer end of the small shaft part (332) is a large-in-small-out circular truncated cone end (334), the swing positioning mechanism (34) is arranged on the frame (31), a sleeving hole (341) matched with the circular truncated cone end (334) is arranged on the swing end of the swing positioning mechanism (34), the sleeving hole (341) can move reciprocatingly away from and close to the circular truncated cone end (334) with the swing of the swing end of the swing positioning mechanism (34), and the sleeving hole (341) can be sleeved on the circular truncated cone end (334) in relative rotation.

4. The cross-cut leveling flying shear apparatus of claim 1, wherein: The rear film covering machine (5) comprises a film pressing mechanism (51), an upper film placing mechanism (52) and a lower film placing mechanism (53), the upper film placing mechanism (52) and the lower film placing mechanism (53) are arranged in the upper and lower directions at the positions of the two rollers of the film pressing mechanism (51).

5. The cross-cut leveling flying shear apparatus of claim 1 wherein: The conveying device (8) comprises a positioning support (81), a swing frame (82), a driving oil cylinder (83) and a conveying belt assembly (84), one end of the swing frame (82) is hinged to the positioning support (81), and the other end of the swing frame (82) can swing up and down, one end of the driving oil cylinder (83) is hinged to the positioning support (81), the other end of the driving oil cylinder (83) is hinged to the other end of the swing frame (82), and the driving oil cylinder (83) can drive the other end of the swing frame (82) to swing up and down reciprocatingly, the conveying belt assembly (84) is arranged on the swing frame (82), the input end of the conveying belt assembly (84) is located on one end of the swing frame (82), and the output end of the conveying belt assembly (84) is located on the other end of the swing frame (82).

6. The cross-cut leveling flying shear apparatus of claim 5, wherein: The stacking device (9) comprises a waste trolley (91) and two stacking machines (92), one of the two stacking machines (92) is used for stacking long steel plates, and the other is used for stacking short steel plates, the input ends of the two stacking machines (92) and the waste trolley (91) are vertically and horizontally arranged in sequence from top to bottom on one side of the output end of the conveying belt assembly (84), and the output end of the conveying belt assembly (84) can be driven by the driving oil cylinder (83) to be respectively directed to the input ends of the two stacking machines (92) and the waste trolley (91), and the output end of the conveying belt assembly (84) can deliver steel plates to the input ends of the two stacking machines (92) and the waste trolley (91). The stacking machine (92) comprises a conveying belt device (921), a material blocking mechanism (922) and a discharging device (923), the material blocking mechanism (922) is provided with a stacking cavity (924), the input end of the conveying belt device (921) can receive steel plates from the output end of the conveying belt assembly (84), and the output end of the conveying belt device (921) can deliver steel plates into the stacking cavity (924); the discharging device (923) comprises a lifting mechanism (9231), a first receiving material mechanism (9232) and a second receiving material mechanism (9233), the lifting mechanism (9231) is arranged in or beside the stacking cavity (924), the first receiving material mechanism (9232) and the second receiving material mechanism (9233) are both horizontal receiving material mechanisms, the first receiving material mechanism (9232) is arranged in the stacking cavity (924) and connected with the lifting end of the lifting mechanism (9231), and the second receiving material mechanism (9233) is arranged beside the first receiving material mechanism (9232) and can horizontally receive materials horizontally delivered by the first receiving material mechanism (9232).

7. The cross-cut leveling flying shear apparatus of claim 6, wherein: The first receiving feeding mechanism (9232) comprises a first motor (9234) and at least one first supporting roller group (9235), the first motor (9234) is arranged on the lifting end of the lifting mechanism (9231), the first supporting roller group (9235) comprises a plurality of first supporting rollers (9230), each first supporting roller (9230) is arranged horizontally and side by side on the lifting end of the lifting mechanism (9231), and each first supporting roller (9230) is parallel to each other, and at least one first supporting roller (9230) is drivingly connected with the first motor (9234); the second receiving feeding mechanism (9233) comprises a positioning frame body (9236), a second motor (9237) and at least one second supporting roller group (9238), the second motor (9237) is arranged on the positioning frame body (9236), and the second supporting roller group (9238) comprises a plurality of second supporting rollers (9240), each second supporting roller (9240) is arranged horizontally and side by side on the top of the positioning frame body (9236), each second supporting roller (9240) is parallel to each other, and at least one second supporting roller (9240) is drivingly connected with the second motor (9237).

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