A blank line belt scrap control device and method

Abstract

The application discloses a blanking line belt scrap control device and method, wherein the control device comprises a swing cutting die and a telescopic assembly arranged at the discharging end of the swing cutting die; the telescopic assembly comprises a telescopic frame, a plurality of telescopic belts arranged in parallel on the telescopic frame and a plurality of floating assemblies arranged on both sides of the telescopic belts; when the floating assembly is lifted upward, the top end of the floating assembly is higher than the top surface of the telescopic belt; when the floating assembly falls, the top end of the floating assembly is lower than the top surface of the telescopic belt; the bottom surface of the lifting end of the floating assembly close to the discharging end of the telescopic belt is provided with a pad, so that after the floating assembly close to the discharging end of the telescopic belt falls, the top end thereof is higher than the top surface of the telescopic belt. The application solves the technical problem that in the prior art, when a plate is cut and conveyed, belt scraps are easily generated, most of the belt scraps are finally adhered to the plate, and the quality of a plate finished product in the later stage is affected, and the generation of the belt scraps can be effectively reduced, and the quality of the plate finished product in the later stage is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plate shearing, and in particular to a device and method for controlling belt scraps of a blanking line. BACKGROUND

[0002] The plate material stacked on the blanking line in a workshop is formed by gradually segmenting and shearing and conveying a flattened steel coil by a swing shear machine. Due to the specific structure of the cutter of the existing swing shear machine, after the plate material is sheared, there is a downward burr at the front end of the plate material conveying direction and an upward burr at the rear end of the plate material conveying direction. Therefore, during the process of starting the plate material driven by the stretchable belt after the plate material is sheared, the plate material will have relative movement with the stretchable belt at the moment when the stretchable belt rapidly pulls the plate material, resulting in scraping between the downward burr at the front end of the plate material conveying direction and the stretchable belt, and then the stretchable belt has belt scraps.

[0003] The existing plate material in the workshop is prone to generating belt scraps during shearing and conveying, and finally most of the belt scraps will be adhered to the plate material, affecting the quality of the plate material finished product in the later period. SUMMARY

[0004] The application provides a device and method for controlling belt scraps of a blanking line, which solves the technical problem that the plate material is prone to generating belt scraps during shearing and conveying in the prior art, and finally most of the belt scraps will be adhered to the plate material, affecting the quality of the plate material finished product in the later period, and achieves the effect of effectively reducing the generation of belt scraps and ensuring the quality of the plate material finished product in the later period.

[0005] In a first aspect, the application provides a device for controlling belt scraps of a blanking line, which comprises a swing shear die and a stretchable assembly arranged at the discharging end of the swing shear die; the stretchable assembly comprises a stretchable frame, a plurality of stretchable belts arranged in parallel to the stretchable frame, and a plurality of floating assemblies arranged on both sides of each stretchable belt; when the floating assembly is lifted upward, the top end of the floating assembly is higher than the top surface of the stretchable belt, and when the floating assembly falls down, the top end of the floating assembly is lower than the top surface of the stretchable belt; the bottom surface of the lifting end of the floating assembly close to the discharging end of the stretchable belt is provided with a pad, so that after the floating assembly close to the discharging end of the stretchable belt falls down, the top end thereof is higher than the top surface of the stretchable belt.

[0006] In a possible implementation manner of the first aspect, the floating assembly comprises a cylinder, a floating frame and a plurality of brush wheels; the cylinder is fixedly connected to the telescopic frame, and a jacking end of the cylinder is fixedly connected with the floating frame; the plurality of brush wheels are arranged at intervals on the floating frame and are rotationally connected with the floating frame; when the cylinder is jacked upward, the top surface of the brush wheels is higher than the top surface of the telescopic belt; when the cylinder falls down, the top surface of the brush wheels is lower than the top surface of the telescopic belt; the bottom surface of the floating frame close to the discharge end of the telescopic belt is provided with the pad, so that after the brush wheels close to the discharge end of the telescopic belt fall down, the top surface of the brush wheels is higher than the top surface of the telescopic belt.

[0007] In a possible implementation manner of the first aspect, the swing cutting die comprises a die body, a conveying belt arranged on the die body, an upper cutter and a lower cutter; the upper cutter and the lower cutter are arranged at the discharge end of the die body and can cut the plate material conveyed on the conveying belt.

[0008] In a possible implementation manner of the first aspect, the swing cutting die comprises a die body, a conveying belt arranged on the die body, an upper cutter and a lower cutter; the upper cutter and the lower cutter are arranged at the discharge end of the die body and can cut the plate material conveyed on the conveying belt.

[0009] The one or more technical solutions provided in the application have at least the following technical effects or advantages:

[0010] The application adopts a swing cutting die and a telescopic assembly arranged at the discharging end of the swing cutting die, wherein the telescopic assembly comprises a telescopic frame, a plurality of telescopic belts arranged in parallel on the telescopic frame, and a plurality of floating assemblies arranged on both sides of each telescopic belt.

[0011] When the floating assembly is lifted upward, the top end of the floating assembly is higher than the top surface of the telescopic belt, and when the floating assembly falls, the top end of the floating assembly is lower than the top surface of the telescopic belt. The bottom surface of the lifting end of the floating assembly close to the discharging end of the telescopic belt is provided with a pad. By arranging the pad, when the floating assembly close to the discharging end of the telescopic belt falls, the top end thereof is higher than the top surface of the telescopic belt, that is, the front end of the plate material above the telescopic belt after cutting is supported by the top end of the floating assembly with the pad and does not contact the telescopic belt, thereby avoiding the abrading between the front end of the plate material and the telescopic belt during the conveying process, and effectively reducing the generation of belt scraps.

[0012] Since the front end of the plate material on the swing cutting die also has a downward burr after cutting, during the conveying process of the plate material above the telescopic belt, the plate material on the swing cutting die also needs to be conveyed forward, and then the floating assembly is lifted upward to support the front end of the plate material on the swing cutting die above the telescopic belt, thereby avoiding the abrading between the burr of the front end of the plate material on the swing cutting die and the telescopic belt, and effectively reducing the generation of belt scraps.

[0013] The technical problem that the belt scraps are easily generated during the cutting and conveying of the plate material in the prior art, and most of the belt scraps are finally adhered to the plate material, affecting the quality of the finished plate material is effectively solved, and the generation of belt scraps is effectively reduced, and the quality of the finished plate material is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application or the prior art. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Figure 1A front view structural schematic diagram of a blanking line belt scrap control device provided by an embodiment of the present application;

[0016] Figure 2 A top view of a telescopic belt, a floating frame and a brush wheel provided by an embodiment of the present application;

[0017] Figure 3 A front view structural schematic diagram of a first lifting assembly and a second lifting assembly of a blanking line belt scrap control device provided by an embodiment of the present application after adding a deburring device;

[0018] Figure 4 A front view structural schematic diagram of a first lifting assembly and a second lifting assembly of a blanking line belt scrap control device provided by an embodiment of the present application after adding a deburring device; Figure 3 A local enlarged view of area A in the middle;

[0019] Figure 5 A front view structural schematic diagram of a first lifting assembly and a second lifting assembly of a blanking line belt scrap control device provided by an embodiment of the present application after adding a deburring device;

[0020] Figure 6 A local enlarged view of area B in the middle. Figure 5

[0021] The figure mark: 1- swing cutting die; 11- die main body; 12- conveying belt; 13- upper knife; 14- lower knife; 2- telescopic assembly; 21- telescopic belt; 22- floating assembly; 221- air cylinder; 222- floating frame; 223- brush wheel; 3- cushion block; 4- first lifting assembly; 41- first lifting part; 42- lifting wheel; 5- second lifting assembly; 51- inclined block; 511- inclined surface; 52- second lifting part; 53- box body; 54- sliding rod; 55- elastic piece; 56- friction wheel; 57- convex shoulder; 58- first sensor; 59- second sensor; 6- sheet metal; 7- burr; M- conveying direction. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] ​In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0024] With reference to Figures 1-2The blanking line belt scrap control device provided by the embodiment of the application comprises a swing shear die 1 and a telescopic assembly 2 arranged at the discharging end of the swing shear die 1; the telescopic assembly 2 comprises a telescopic frame, a plurality of telescopic belts 21 arranged in parallel on the telescopic frame and a plurality of floating assemblies 22 arranged on both sides of each telescopic belt 21; when the floating assembly 22 is lifted upward, the top end of the floating assembly 22 is higher than the top surface of the telescopic belt 21; when the floating assembly 22 falls down, the top end of the floating assembly 22 is lower than the top surface of the telescopic belt 21; the bottom surface of the lifting end of the floating assembly 22 close to the discharging end of the telescopic belt 21 is provided with a cushion block 3, so that the top end of the floating assembly 22 close to the discharging end of the telescopic belt 21 is higher than the top surface of the telescopic belt 21 after falling down. In the embodiment of the application, the telescopic frame is driven to move horizontally by a pneumatic cylinder 221 or a hydraulic cylinder, thereby driving the telescopic belt 21 and the floating assembly 22 to move horizontally; when shearing is needed, the telescopic belt 21 and the floating assembly 22 are moved horizontally to the discharging end of the swing shear die 1, and the sheared plate material 6 is conveyed after shearing; the floating assembly 22 is arranged on both sides of the telescopic belt 21, so that the floating assembly 22 is kept in the lifted state during the conveying of the plate material 6 to be sheared through the discharging end of the swing shear die 1 to the telescopic belt 21, so that the part of the plate material 6 to be sheared above the telescopic belt 21 is in contact with the top end of the floating assembly 22 and is supported by the floating assembly 22; when the length of the plate material 6 to be sheared above the telescopic belt 21 reaches the required length, the conveying is stopped, and then the swing shear die 1 starts to shear the plate material 6; at the same time of shearing, the floating assembly 22 falls down and no longer supports the plate material 6, that is, the plate material 6 is in contact with the telescopic belt 21 at this time, and the sheared plate material 6 on the telescopic belt 21 is conveyed under the rotation of the telescopic belt 21; meanwhile, the cushion block 3 is arranged, so that the front end part of the plate material 6 above the telescopic belt 21 is supported and is not in contact with the telescopic belt 21; at this time, when the plate material 6 is conveyed by the telescopic belt 21, the burr 7 at the front end of the plate material 6 above the telescopic belt 21 does not come into contact with the telescopic belt 21 to produce scratching, thereby effectively reducing the generation of belt scrap.

[0025] Reference Figure 1The floating assembly 22 comprises a cylinder 221, a floating frame 222 and a plurality of brush wheels 223; the cylinder 221 is fixedly connected to the telescopic frame, and the top end of the cylinder 221 is fixedly connected with the floating frame 222; the plurality of brush wheels 223 are arranged at intervals on the floating frame 222 and are rotationally connected with the floating frame 222; when the cylinder 221 is lifted upward, the top surface of the brush wheel 223 is higher than the top surface of the telescopic belt 21; when the cylinder 221 falls down, the top surface of the brush wheel 223 is lower than the top surface of the telescopic belt 21; the bottom surface of the floating frame 222 close to the discharge end of the telescopic belt 21 is provided with a pad 3, so that the top surface of the brush wheel 223 close to the discharge end of the telescopic belt 21 is higher than the top surface of the telescopic belt 21 after falling down. In the embodiment of the application, the plate material 6 to be sheared is conveyed to the upper side of the telescopic belt 21, the cylinder 221 is controlled to lift the floating frame 222, and the brush wheel 223 is kept in contact with the plate material 6 to be sheared conveyed to the upper side of the telescopic belt 21; when the plate material 6 to be sheared is conveyed to the position, the first shearing is performed; after the first shearing is completed, the cylinder 221 is controlled to drive the floating frame 222 and the brush wheel 223 to fall down, so that the plate material 6 sheared and completed is in contact with the telescopic belt 21, and the telescopic belt 21 is rotated to continue conveying the plate material 6 forward.

[0026] With reference to Figure 1The shearing die 1 comprises a die body 11, a conveying belt 12 arranged on the die body 11, an upper cutter 13 and a lower cutter 14. The upper cutter 13 and the lower cutter 14 are arranged at the discharging end of the die body 11 and can shear the plate material 6 conveyed on the conveying belt 12. In the embodiment of the present application, the plate material 6 to be sheared is first conveyed from the conveying belt 12 on the die body 11 to the direction of the stretchable belt 21, so as to pass through the cutting edges of the upper cutter 13 and the lower cutter 14, and finally reach above the stretchable belt 21 and be supported by the raised brush wheel 223 (at this time, the stretchable belt 21 is always rotating, but does not contact the plate material 6 to be sheared above the stretchable belt 21). Then, the upper cutter 13 is controlled to be lowered, and the plate material 6 to be sheared is sheared by the upper cutter 13 and the lower cutter 14. After the shearing is completed, the cylinder 221 drives the floating frame 222 and the brush wheel 223 to be lowered, and the plate material 6 above the stretchable belt 21 falls onto the stretchable belt 21 and continues to be conveyed forward under the driving of the stretchable belt 21. After the shearing is completed, the conveying belt 12 continues to rotate, and the plate material 6 on the conveying belt 12 continues to pass through the cutting edges of the upper cutter 13 and the lower cutter 14 and is conveyed to the stretchable belt 21. At the same time, the cylinder 221 controls the brush wheel 223 to be raised again during the conveying process to the stretchable belt 21, so as to ensure that the plate material 6 conveyed to the stretchable belt 21 is always in contact with the raised brush wheel 223 during the process of reaching the stretchable belt 21, and the burr 7 at the front end of the sheared plate material 6 is prevented from scratching the stretchable belt 21. After the plate material 6 reaches the stretchable belt 21 again, the conveying belt 12 is controlled to stop rotating, and then the second shearing is performed. After the second shearing is completed, the cylinder 221 drives the brush wheel 223 to be lowered. At this time, due to the effect of the pad 3, the brush wheel 223 close to the discharging end of the stretchable belt 21 does not completely fall below the stretchable belt 21, so that the front end of the plate material 6 above the stretchable belt 21 is supported by the brush wheel 223 at this position and does not contact the stretchable belt 21, thereby preventing the burr 7 at the front end of the plate material 6 from scratching the stretchable belt 21. At this time, all the brush wheels 223 except the brush wheel 223 at the position of the pad 3 fall below the stretchable belt 21, that is, the sheared plate material 6 can contact the stretchable belt 21 and be conveyed forward under the driving of the stretchable belt 21.

[0027] The blanking line belt scrap control method provided by the embodiment of the application comprises the following steps: controlling the action of the telescopic assembly 2 to drive the telescopic frame to move the telescopic belt 21 and the floating assembly 22 to one side of the upper blade 13 and the lower blade 14; starting the telescopic belt 21 to rotate continuously, and starting the conveying belt 12 to convey the front end of the plate material 6 to be cut to the telescopic belt 21, then controlling the floating assembly 22 to be lifted upward, so that the front end of the plate material 6 to be cut is supported by the brush wheel 223 during the movement of the front end of the plate material 6 to be cut above the telescopic belt 21; after the plate material 6 to be cut is moved to the position, the conveying belt 12 is controlled to stop rotating, and the upper blade 13 is controlled to move to the lower blade 14 to cut the plate material 6; after the plate material 6 is cut, the floating assembly 22 is controlled to descend, so that the plate material 6 above the telescopic belt 21 is in contact with the telescopic belt 21, and the front end of the plate material 6 above the telescopic belt 21 is supported by the brush wheel 223 close to the discharge end of the telescopic belt 21, so that the plate material 6 above the telescopic belt 21 is continuously conveyed forward by the continuous rotation of the telescopic belt 21; then the conveying belt 12 is controlled to rotate for the second time, the plate material 6 to be cut above the conveying belt 12 is conveyed forward, then the floating assembly 22 is controlled to be lifted upward for the second time, so that the front end of the plate material 6 to be cut is supported by the brush wheel 223 during the movement of the front end of the plate material 6 to be cut above the telescopic belt 21; after the plate material 6 to be cut is moved to the position, the conveying belt 12 is controlled to stop rotating for the second time, and the upper blade 13 is controlled to move to the lower blade 14 for the second time to cut the plate material 6 to be cut for the second time; then the above steps are repeated to continuously cut and convey the plate material 6 to be cut.

[0028] With reference to Figures 3-6The blanking line belt scrap control device in the embodiment of the application further comprises a deburring device for better reducing the generation of belt scrap, the deburring device comprises a first lifting assembly 4 and a second lifting assembly 5, the first lifting assembly 4 is arranged between the lower knife 14 and the conveying belt 12, the second lifting assembly 5 is arranged between the lower knife 14 and the telescopic belt 21, the first lifting assembly 4 comprises a first lifting part 41 and a lifting wheel 42, the lifting wheel 42 is arranged at the output end of the first lifting part 41 and can be lifted and lowered under the driving of the first lifting part 41; the second lifting part 52 comprises an inclined block 51, a second lifting part 52, a box body 53, a sliding rod 54, an elastic member 55, a friction wheel 56, a convex shoulder 57, a first sensor 58 and a second sensor 59, the box body 53 and the sliding rod 54 are arranged horizontally, the sliding rod 54 penetrates through the box body 53 and is in sliding connection with the box body 53, the convex shoulder 57 is arranged on the outer side of the sliding rod 54, the elastic member 55 and the convex shoulder 57 are both arranged inside the box body 53 and are sleeved on the outer side of the sliding rod 54, one end of the elastic member 55 is clamped to the inner side of the box body 53, the other end of the elastic member 55 is clamped to the convex shoulder 57, the friction wheel 56 is rotationally connected to the end of the sliding rod 54 away from the elastic member 55, the inclined block 51 is provided with an inclined surface 511, the inclined block 51 is fixedly connected to the side of the lower knife 14 away from the first lifting part 41, the friction wheel 56 can be in rolling connection with the inclined surface 511 when the second lifting part 52 is lifted, the first sensor 58 is fixedly connected to the end of the sliding rod 54 away from the friction wheel 56, when the second lifting part 52 rises to the highest position, the length of the elastic member 55 is elongated to the maximum length, the elastic member 55 extrudes the sliding rod 54 so that the friction wheel 56 abuts against the inclined surface 511, at the same time, the first sensor 58 contacts the outer side of the box body 53, when the first sensor 58 contacts the outer side of the box body 53, the second lifting part 52 is controlled to act and drives the box body 53 to start descending, the second sensor 59 is arranged on the top surface of the box body 53, when the second sensor 59 does not sense the plate material 6 above, the second lifting part 52 is controlled to act and drives the box body 53 to start ascending.

[0029] Reference Figures 3-6The working principle of the blanking line belt scrap control device in the embodiment of the application after adding the deburring device is as follows: initially, the first lifting part 41 and the second lifting part 52 are both in a lowered state, the control telescopic belt 21 is always rotating, the conveying belt 12 drives the to-be-cut plate material 6 to pass through the cutting edges of the upper cutter 13 and the lower cutter 14 and is conveyed to the upper side of the telescopic belt 21, and the brush wheel 223 is controlled to be lifted, so that the to-be-cut plate material 6 is always in contact with the lifted brush wheel 223 in the conveying process to the upper side of the telescopic belt 21; when the to-be-cut plate material 6 is conveyed to the position above the telescopic belt 21, the conveying belt 12 is controlled to stop rotating (the telescopic belt 21 remains in the rotating state), and a first cutting action is performed; after the first cutting is completed, the brush wheel 223 is first controlled to be lowered, so that the cut plate material 6 above the telescopic belt 21 falls onto the telescopic belt 21 (due to the action of the cushion block 3, the front end part of the plate material 6 above the telescopic belt 21 always remains in a lifted state); the telescopic belt 21 drives the cut plate material 6 above the telescopic belt 21 to be conveyed forward; when the plate material 6 is conveyed to the upper side away from the second sensor 59, the second sensor 59 detects that there is no plate material 6 above, then the first lifting part 41 and the second lifting part 52 are controlled to act, and the conveying belt 12 starts to rotate; the lifting wheel 42 lifts the front end of the plate material 6 above the conveying belt 12, the box body 53 moves upward, the sliding rod 54 moves upward, the friction wheel 56 is pressed on the inclined surface 511 under the action of the elastic member 55, and the friction wheel 56 rotates clockwise on the inclined surface 511; while the friction wheel 56 keeps rising and rotating clockwise, the front end of the plate material 6 on the conveying belt 12 is lifted by the lifting wheel 42 and is conveyed forward synchronously, so that the burr 7 on the front end of the plate material 6 is in contact with the clockwise rotating friction wheel 56; due to the forward movement of the burr 7 and the clockwise rotation of the friction wheel 56, the burr 7 is removed when the burr 7 is in contact with the clockwise rotating friction wheel 56; when the burr 7 is in contact with the friction wheel 56, the first sensor 58 contacts the box body 53, and then the first lifting part 41 and the second lifting part 52 are controlled to act to control the lifting wheel 42 and the box body 53 to start to descend at the same time, that is, the friction wheel 56 no longer rises and starts to descend, which does not affect the continuous forward conveying of the plate material 6 passing through the cutting edges of the upper cutter 13 and the lower cutter 14; the brush wheel 223 is controlled to be lifted for the second time in the process that the plate material 6 passes through the cutting edges of the upper cutter 13 and the lower cutter 14 to the upper side of the telescopic belt 21, so that the plate material 6 above the telescopic belt 21 is always in contact with the lifted brush wheel 223 and is supported; then, when the plate material 6 is conveyed to the position above the telescopic belt 21 for the second time, the conveying belt 12 is controlled to stop rotating, and then a second cutting action is performed; after the second cutting is completed, the brush wheel 223 is lowered again, so that the plate material 6 above the telescopic belt 21 after the second cutting falls onto the telescopic belt 21,And under the driving of the telescopic belt 21, the plate 6 continues to be conveyed forward, and then when the plate 6 above the telescopic belt 21 is conveyed to above the second sensor 59, the second sensor 59 detects that there is no plate 6 above, and then the first lifting part 41 and the second lifting part 52 act again to start the second deburring 7 work, and then continue the above working steps in a reciprocating cycle, that is, the shearing, deburring 7 and conveying of the plate 6 can be realized, and finally the abrading of the front end burr 7 of the plate 6 with the telescopic belt 21 is effectively reduced, thereby effectively reducing the generation of belt scraps.

[0030] In the embodiments of the present application, since different types of plates are considered to have different lengths, the positions of the added pads are also changed accordingly for different types of plates, so that the front end part of the plate is always in a lifted state after falling under the brush wheel when the plate is conveyed to above the telescopic belt, thereby avoiding the abrading between the front end burr and the telescopic belt when the telescopic belt is started.

[0031] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0032] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A blank line belt scrap control device characterized by, The utility model relates to a swing cutting die (1) and a telescopic assembly (2) arranged at the discharging end of the swing cutting die (1). The telescopic assembly (2) comprises a telescopic frame, a plurality of telescopic belts (21) arranged in parallel on the telescopic frame, and a plurality of floating assemblies (22) arranged on both sides of each telescopic belt (21). When the floating assembly (22) is lifted up, the top end of the floating assembly (22) is higher than the top surface of the telescopic belt (21), and when the floating assembly (22) falls down, the top end of the floating assembly (22) is lower than the top surface of the telescopic belt (21). The bottom surface of the lifting end of the floating assembly (22) near the discharging end of the telescopic belt (21) is provided with a cushion block (3), so that after the floating assembly (22) near the discharging end of the telescopic belt (21) falls down, the top end thereof is higher than the top surface of the telescopic belt (21). The swing cutting die (1) comprises a die main body (11), a conveying belt (12) arranged on the die main body (11), an upper cutter (13), and a lower cutter (14). The upper cutter (13) and the lower cutter (14) are arranged at the discharging end of the die main body (11) and can cut the plate material (6) conveyed on the conveying belt (12). The deburring device comprises a first lifting assembly (4) and a second lifting assembly (5), the first lifting assembly (4) is arranged between the lower knife (14) and the conveying belt (12), the second lifting assembly (5) is arranged between the lower knife (14) and the telescopic belt (21), the first lifting assembly (4) comprises a first lifting part (41) and a lifting wheel (42), the lifting wheel (42) is arranged at the output end of the first lifting part (41) and can be lifted and lowered under the driving of the first lifting part (41); the second lifting part (52) comprises an inclined block (51), a second lifting part (52), a box body (53), a sliding rod (54), an elastic element (55), a friction wheel (56), a shoulder (57), a first sensor (58) and a second sensor (59), the box body (53) and the sliding rod (54) are arranged horizontally, the sliding rod (54) penetrates through the box body (53) and is in sliding connection with the box body (53), the outer side of the sliding rod (54) is provided with the shoulder (57), the elastic element (55) and the shoulder (57) are both arranged inside the box body (53) and are sleeved on the outer side of the sliding rod (54), one end of the elastic element (55) is clamped to the inner side of the box body (53), the other end of the elastic element (55) is clamped to the shoulder (57), the friction wheel (56) is rotationally connected to the end of the sliding rod (54) away from the elastic element (55), the inclined block (51) is provided with an inclined surface (511), the inclined block (51) is fixedly connected to the side of the lower knife (14) away from the first lifting part (41), the friction wheel (56) can be rollingly connected to the inclined surface (511) when the second lifting part (52) is lifted and lowered, the first sensor (58) is fixedly connected to the end of the sliding rod (54) away from the friction wheel (56), when the second lifting part (52) rises to the highest position, the length of the elastic element (55) is elongated to the maximum length, the elastic element (55) extrudes the sliding rod (54) so that the friction wheel (56) abuts against the inclined surface (511), at the same time, the first sensor (58) contacts the outer side of the box body (53), when the first sensor (58) contacts the outer side of the box body (53), the second lifting part (52) is controlled to act and drive the box body (53) to start descending, the second sensor (59) is arranged on the top surface of the box body (53), when the second sensor (59) does not sense the plate material (6) above, the second lifting part (52) is controlled to act and drive the box body (53) to start ascending.

2. The blank line swarf control apparatus of claim 1, wherein, The floating assembly (22) comprises a gas cylinder (221), a floating frame (222) and a plurality of brush wheels (223); The gas cylinder (221) is fixedly connected to the telescopic frame, and the lifting end of the gas cylinder (221) is fixedly connected with the floating frame (222); The plurality of brush wheels (223) are arranged at intervals on the floating frame (222) and are rotationally connected with the floating frame (222); When the air cylinder (221) is lifted up, the top surface of the brush wheel (223) is higher than the top surface of the telescopic belt (21), and when the air cylinder (221) falls down, the top surface of the brush wheel (223) is lower than the top surface of the telescopic belt (21); The bottom surface of the floating frame (222) near the discharge end of the telescopic belt (21) is provided with the cushion block (3), so that after the brush wheel (223) near the discharge end of the telescopic belt (21) falls down, the top surface thereof is higher than the top surface of the telescopic belt (21).

3. A method of controlling the scrap of a blanking line based on the blanking line scrap control device according to claim 2, characterized by Comprise: Control the telescopic assembly (2) to act, so that the telescopic frame drives the telescopic belt (21) and the floating assembly (22) to move to one side of the upper knife (13) and the lower knife (14); Start the telescopic belt (21) to rotate all the time, and start the conveying belt (12) to convey the front end of the plate material (6) to be cut to the telescopic belt (21), and then control the floating assembly (22) to be lifted up, so that when the front end of the plate material (6) to be cut moves to the upper side of the telescopic belt (21), the front end of the plate material (6) to be cut is supported by the brush wheel (223); When the plate material (6) to be cut moves to the position, control the conveying belt (12) to stop rotating, and control the upper knife (13) to move to the lower knife (14) to cut the plate material (6); After the plate material (6) is cut, control the floating assembly (22) to fall down, so that the plate material (6) above the telescopic belt (21) is in contact with the telescopic belt (21), and the front end of the plate material (6) above the telescopic belt (21) is supported by the brush wheel (223) near the discharge end of the telescopic belt (21), so that the plate material (6) above the telescopic belt (21) is continuously conveyed forward by the continuous rotation of the telescopic belt (21); Then control the conveying belt (12) to rotate for the second time, convey the plate material (6) to be cut above the conveying belt (12) forward, and then control the floating assembly (22) to be lifted up for the second time, so that when the front end of the plate material (6) to be cut moves to the upper side of the telescopic belt (21), the front end of the plate material (6) to be cut is supported by the brush wheel (223); When the plate material (6) to be cut moves to the position, control the conveying belt (12) to rotate for the second time, and control the upper knife (13) to move to the lower knife (14) for the second time to cut the plate material (6) to be cut for the second time; Then the above steps are repeated to continuously cut and convey the plate material (6) to be cut.

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