Metal coil stock slitting machine

Abstract

The invention provides a metal coil slitting machine, and belongs to the technical field of metal coil slitting. The metal coil stock slitting machine comprises a supporting seat, an upper cutter head and a lower cutter head are arranged on the supporting seat, a strip slitting auxiliary mechanism is arranged on the supporting seat, and the strip slitting auxiliary mechanism comprises a frame and a mounting frame. By arranging the strip slitting auxiliary mechanism, the leveling roller can be automatically adjusted in a self-adaptive mode according to the local shape of the coiled material, so that larger pressure can be applied to the high point of the wavy coiled material, smaller pressure can be applied to the low point of the wavy coiled material, internal stress of the wavy position of the coiled material can be overcome more easily, and the production efficiency of the coiled material is improved. And each leveling roller is located on the cutting axis of the upper cutter head and the cutting axis of the lower cutter head, only the wave-shaped coiled materials at the cutting axes are leveled along with traction of the coiled materials, macroscopic interference is eliminated to the maximum extent, and compared with the prior art, the cutting precision can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal coil slitting, in particular to a metal coil longitudinal slitting machine. BACKGROUND

[0002] Metal coils are usually stored and transported in the form of coils before processing. When used, they need to be cut into several strips of predetermined width along the length direction by a longitudinal slitting machine. The cutting accuracy is a key indicator of product quality. However, during rolling, coiling and subsequent unwinding, the release of internal residual stress often causes the plate surface to produce a wavy deformation along the width direction. This wavy deformation causes serious problems during slitting.

[0003] In the prior art, a flattening machine is usually arranged in front of the slitting machine to improve the plate shape of the incoming material. However, these flattening machines are usually large independent devices. Their working mode is to apply uniform or fixed mode pressure to the entire width of the coil to eliminate macro bending and unevenness. This overall flattening method has obvious limitations. For the coil that is dynamically passing after unwinding, the positions and amplitudes of the wave crests and troughs are randomly changing. The fixed flattening roller system cannot make real-time and local targeted adjustments, and the flattening effect is limited. In addition, for the slitting machine, only the plate shape of the small area near the cutting axis of the cutter head really affects the cutting accuracy of the cutter head. Applying a large flattening force to the entire wide coil not only has high energy consumption and large equipment, but also may introduce new stress problems such as edge wrinkling or material thinning during narrow strip slitting due to overcorrection or improper pressure distribution. SUMMARY

[0004] In order to overcome the above-mentioned technical problems or at least partially solve the above-mentioned problems, the present application provides a metal coil longitudinal slitting machine.

[0005] The present application is implemented as follows: The present application provides a metal coil longitudinal slitting machine, which comprises a support seat, an upper cutter head and a lower cutter head arranged on the support seat, a strip cutting auxiliary mechanism arranged on the support seat, the strip cutting auxiliary mechanism comprising, a frame arranged on the top of the support seat, the number of the frame being consistent with the number of the upper cutter head, the shape of the frame being arranged as an inverted U shape, two vertical ends of the frame being slidably sleeved with a sliding cylinder, the bottom of the sliding cylinder being provided with a detection roller, the surface of the sliding cylinder being fixedly provided with a top plate, the top plate and the frame being provided with a light spring therebetween; a mounting bracket arranged between the two vertical ends of the frame, the mounting bracket being rotatably provided with a flattening roller, the flattening roller being located between the two detection rollers, the height of the flattening roller being higher than the height of the detection rollers.

[0006] In a preferred scheme, the frame is fixed with a support, the support is hinged with a differential lever, both ends of the differential lever are provided with a first connecting rod, one end of the first connecting rod is hinged with the differential lever, the other end of the first connecting rod is hinged with the top plate.

[0007] In a preferred scheme, the support is hinged with a transmission lever, the transmission lever is fixedly connected with the hanging rack, the length of the transmission lever is consistent with the length of the differential lever, four second connecting rods are arranged between the differential lever and the transmission lever, one end of the second connecting rod is hinged with the differential lever, the other end of the second connecting rod is hinged with the transmission lever, two of the four second connecting rods are arranged on both sides of the differential lever.

[0008] In a preferred scheme, the support seat is provided with a self-adjusting mechanism for flattening force, the self-adjusting mechanism for flattening force includes a pressing plate, the pressing plate is arranged above the frame, the number of the pressing plate is consistent with the number of the frame, and a heavy spring is arranged between the pressing plate and the frame.

[0009] In a preferred scheme, the top of the support seat is fixedly provided with a support frame, a plurality of alignment plates are arranged on the support frame, the number of the alignment plates is consistent with the number of the pressing plate, the bottom of the alignment plate is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are arranged in parallel, and two sliding shafts are slidingly arranged in the first sliding groove and the second sliding groove.

[0010] In a preferred scheme, a first scissor-type connecting rod and a second scissor-type connecting rod are arranged between adjacent alignment plates, the midpoint of the first scissor-type connecting rod is hinged with the midpoint of the second scissor-type connecting rod, the length of the first scissor-type connecting rod is consistent with the length of the second scissor-type connecting rod, and the top of both ends of the first scissor-type connecting rod and the top of both ends of the second scissor-type connecting rod are hinged with the sliding shaft.

[0011] In a preferred scheme, the bottom of both ends of the first scissor-type connecting rod and the bottom of both ends of the second scissor-type connecting rod are hinged with a connecting rod, the connecting rods on the same side are hinged with a pressing block, the pressing block is located above the pressing plate, a first telescopic rod is arranged between the alignment plate and the pressing plate, and a second telescopic rod is arranged between the pressing block and the alignment plate.

[0012] In a preferred scheme, the middle alignment plate is fixedly arranged on the support frame, and the remaining alignment plates are slidingly arranged on the support frame, and the spacing between adjacent alignment plates is the same.

[0013] In a preferred scheme, the top of the alignment plate is hingedly connected with a third scissor-type connecting rod and a fourth scissor-type connecting rod, the midpoints of the third and fourth scissor-type connecting rods are hingedly connected, and the lengths of the third and fourth scissor-type connecting rods are consistent.

[0014] In a preferred scheme, the end points of the third and fourth scissor-type connecting rods on adjacent alignment plates are hingedly connected, a hydraulic rod is arranged on the support frame, and the output end of the hydraulic rod is fixedly connected with one of the alignment plates.

[0015] The metal coil longitudinal cutting slitting machine has the following advantages: 1. The strip cutting auxiliary mechanism is arranged, so that the flattening rollers can automatically adjust according to the local shape of the coil, thereby exerting greater pressure on the high points of the wavy coil and smaller pressure on the low points of the wavy coil, more easily overcoming the internal stress of the wavy coil, and each flattening roller is located on the cutting axis of the upper cutter disc and the lower cutter disc, and only the wavy coil at the cutting axis is flattened during the traction of the coil, thereby maximizing the elimination of macroscopic interference and greatly improving the cutting precision compared with the prior art.

[0016] 2. The flattening force self-adjusting mechanism is arranged, thereby adjusting the overall pressure applied to the flattening rollers, and when the slitting width is smaller, the relative distance between adjacent alignment plates is smaller, the relative distance between the pressing plate and the frame is greater at this time, and the pressure applied by the pressing plate to the heavy spring is smaller, thereby avoiding the problem that when the slitting width is smaller, the excessive flattening pressure near the input end of the upper cutter disc and the lower cutter disc causes the coil to be prone to plastic deformation during cutting. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic diagram of the overall three-dimensional structure provided by the embodiments of the present application; Figure 2 is a schematic diagram of the overall structure provided by the embodiments of the present application from the top view; Figure 3 is a schematic diagram of the upper cutter disc and the lower cutter disc provided by the embodiments of the present application; Figure 4 is a schematic diagram of the structure of the support frame provided by the embodiments of the present application; Figure 5 A schematic diagram of the support frame structure from a bottom view is provided for embodiments of the present invention; Figure 6 Structural schematic diagrams of the third and fourth scissor-type connecting rods are provided for embodiments of the present invention; Figure 7 Structural diagrams of the first scissor-type connecting rod and the second scissor-type connecting rod are provided for embodiments of the present invention; Figure 8 A schematic diagram of the strip slitting auxiliary mechanism is provided for embodiments of the present invention; Figure 9 A schematic diagram of the connecting rod and pressing block is provided for embodiments of the present invention.

[0019] In the diagram: 1. Support base; 2. Upper cutter head; 3. Lower cutter head; 401. Frame; 402. Slide cylinder; 403. Detection roller; 404. Top plate; 405. Light spring; 406. Hanging frame; 407. Leveling roller; 408. Bracket; 409. Differential lever; 410. First connecting rod; 411. Transmission lever; 412. Second connecting rod; 501. Pressing plate; 502. Heavy spring; 503. Support frame; 504. Alignment plate; 505. First slide groove; 506. Second slide groove; 507. Sliding shaft; 508. First scissor-type connecting rod; 509. Second scissor-type connecting rod; 510. Connecting rod; 511. Pressing block; 512. First telescopic rod; 513. Second telescopic rod; 514. Third scissor-type connecting rod; 515. Fourth scissor-type connecting rod; 516. Hydraulic rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Reference Figures 1-9The application provides a technical scheme: a metal coil longitudinal cutting slitting machine, which comprises a supporting seat 1, an upper cutter disc 2 and a lower cutter disc 3 are arranged on the supporting seat 1, a strip material cutting auxiliary mechanism is arranged on the supporting seat 1, the strip material cutting auxiliary mechanism comprises a frame 401 and a mounting frame 406, the frame 401 is arranged on the top of the supporting seat 1, the number of the frame 401 is consistent with the number of the upper cutter disc 2, the frame 401 is arranged in an inverted U shape, a sliding cylinder 402 is slidably arranged on the two vertical ends of the frame 401, a detection roller 403 is arranged at the bottom of the sliding cylinder 402, a top plate 404 is fixedly arranged on the surface of the sliding cylinder 402, a light spring 405 is arranged between the top plate 404 and the frame 401, the mounting frame 406 is arranged between the two vertical ends of the frame 401, a leveling roller 407 is rotatably arranged on the mounting frame 406, the leveling roller 407 is located between the two detection rollers 403, the height of the leveling roller 407 is higher than the height of the detection rollers 403, through the arrangement of the strip material cutting auxiliary mechanism, after the metal coil is unwound, the coil is passed below the detection rollers 403, at this time, the axis below the leveling roller 407 is in contact with the surface of the coil, the leveling roller 407 is provided with overall leveling pressure by the heavy spring 502, when the metal coil is cut by the upper cutter disc 2 and the lower cutter disc 3, due to the elastic force of the light spring 405, the detection rollers 403 are always in close contact with the surface of the metal coil, due to the stress problem after the metal coil is unwound, the coil is in a wavy shape, at this time, the height difference between the two detection rollers 403 on each group of detection rollers 403 appears, the leveling roller 407 is inclined at the same time, so that the leveling roller 407 can automatically adjust according to the local shape of the coil, so that greater pressure can be applied to the high points of the wavy coil, smaller pressure is applied to the low points of the wavy coil, the internal stress of the wavy coil is more easily overcome, and each leveling roller 407 is located on the cutting axis of the upper cutter disc 2 and the lower cutter disc 3, only the wavy coil at the cutting axis is leveled as the coil is pulled, the macroscopic interference is maximally eliminated, and the cutting precision can be greatly improved compared with the prior art. With reference to Figures 1-9 A support 408 is fixedly arranged on the frame 401, a differential lever 409 is hingedly arranged on the support 408, first connecting rods 410 are arranged at the two ends of the differential lever 409, one end of the first connecting rod 410 is hingedly connected with the differential lever 409, the other end of the first connecting rod 410 is hingedly connected with the top plate 404, through the arrangement of the first connecting rod 410, when the cutting axis of the coil is not flat and is in a wavy shape, the height difference between the two detection rollers 403 is inconsistent, the height difference between the two top plates 404 appears, the differential lever 409 is inclined and swings along the hinged point thereof under the action of the first connecting rod 410, and the swing amplitude and angle of the differential lever 409 correspond to the height difference between the two detection rollers 403. With reference to Figures 1-9The transmission lever 411 is hinged on the support 408, and is fixedly connected with the hanging rack 406. The length of the transmission lever 411 is consistent with the length of the differential lever 409. The hinging points of the differential lever 409 and the transmission lever 411 are both the middle points thereof. Four second connecting rods 412 are arranged between the differential lever 409 and the transmission lever 411. One end of the second connecting rod 412 is hinged with the differential lever 409, and the other end thereof is hinged with the transmission lever 411. The four second connecting rods 412 are arranged in two groups on both sides of the differential lever 409. The hinging points of the second connecting rods 412 are all provided with bidirectional overrunning clutches. The inner ring of the bidirectional overrunning clutch is fixed with the differential lever 409, and the outer ring is fixed with the transmission lever 411. Under the action of the bidirectional overrunning clutch, the inclination swing of the differential lever 409 can synchronously drive the inclination swing of the transmission lever 411. The reaction force of the coiled material on the leveling roller 407 cannot be transmitted to the differential lever 409, so as to ensure the accuracy of the detection roller 403. When the differential lever 409 is inclined and swung, the four second connecting rods 412 are cooperated to synchronously drive the transmission lever 411 to be inclined and swung at the same angle. The transmission lever 411 drives the leveling roller 407 to be synchronously inclined, so as to specifically level the coiled material. With reference to Figures 1-9 The support seat 1 is provided with a leveling force self-adjusting mechanism. The leveling force self-adjusting mechanism comprises press plates 501 arranged above the frames 401. The number of the press plates 501 is consistent with the number of the frames 401. Heavy springs 502 and dampers are arranged between the press plates 501 and the cross beams of the frames 401. The dampers are used to improve the stability of the heavy springs 502 and keep the horizontal synchronous movement between the press plates 501 and the frames 401. By arranging the leveling force self-adjusting mechanism, the alignment plates 504 are moved before the metal coiled material is cut. The middle axes of each alignment plate 504 are aligned with the upper cutter disc 2 and the lower cutter disc 3. At this time, according to the relative distance between the adjacent alignment plates 504, the relative distance between the press plates 501 and the frames 401 is adaptively changed, so as to adjust the overall pressure given to the leveling roller 407. When the strip cutting width is smaller, the relative distance between the adjacent alignment plates 504 is smaller. At this time, the relative distance between the press plates 501 and the frames 401 is larger. The pressure given by the press plates 501 to the heavy springs 502 is smaller, so as to avoid the problem that when the strip cutting width is smaller, the excessive leveling pressure near the input end of the upper cutter disc 2 and the lower cutter disc 3 causes the plastic deformation of the coiled material during cutting. With reference to Figures 1-9The top of the support seat 1 is fixed with a support frame 503, a plurality of alignment plates 504 are arranged on the support frame 503, the number of the alignment plates 504 is consistent with that of the pressing plates 501, the bottom of each alignment plate 504 is provided with a first sliding groove 505 and a second sliding groove 506, the first sliding groove 505 and the second sliding groove 506 are arranged in parallel, two sliding shafts 507 are slidingly arranged in the first sliding groove 505 and the second sliding groove 506, the sliding shafts 507 are limited in the sliding grooves through straight-line sliding rails, the sliding shafts 507 can only slide in the first sliding groove 505 and the second sliding groove 506, a first scissor-type connecting rod 508 and a second scissor-type connecting rod 509 are arranged between adjacent alignment plates 504, the midpoint of the first scissor-type connecting rod 508 and the midpoint of the second scissor-type connecting rod 509 are hingedly connected, the length of the first scissor-type connecting rod 508 and the length of the second scissor-type connecting rod 509 are consistent, the top of both ends of the first scissor-type connecting rod 508 and the top of both ends of the second scissor-type connecting rod 509 are hingedly connected with the sliding shafts 507, through the arrangement of the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509, when the relative distance between adjacent alignment plates 504 is smaller, the distance between the first sliding groove 505 and the second sliding groove 506 arranged on the adjacent alignment plates 504 is smaller, since the midpoint of the first scissor-type connecting rod 508 and the midpoint of the second scissor-type connecting rod 509 are hingedly connected, the sliding shafts 507 are extruded by the first sliding groove 505 and the second sliding groove 506, so that the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509 simultaneously rotate in opposite directions at the hinged points of the two, the two sliding shafts 507 in the first sliding groove 505 and the second sliding groove 506 are away from each other, on the contrary, when the relative distance between adjacent alignment plates 504 is larger, the two sliding shafts 507 in the first sliding groove 505 and the second sliding groove 506 are close to each other; Referring to Figures 1-9The bottom of the two ends of the first scissor type connecting rod 508 and the bottom of the two ends of the second scissor type connecting rod 509 are hinged with connecting rods 510, the same side connecting rods 510 are hinged with pressing blocks 511 which are above the pressing plate 501, the first telescopic rod 512 is arranged between the alignment plate 504 and the pressing plate 501, the second telescopic rod 513 is arranged between the pressing block 511 and the alignment plate 504, by arranging the pressing block 511, when the width of the required slitting is smaller, the two slide shafts 507 inside the first sliding groove 505 and the second sliding groove 506 are away from each other, under the limiting of the second telescopic rod 513 and the cooperation of the two connecting rods 510, the pressing block 511 moves upward, because the heavy spring 502 itself has a certain pre-tightening force to make the frame 401 drive the flattening roller 407 to press on the coiled material, the initial state is the compression state, at this time the pressing block 511 moves upward, the pressing plate 501 moves upward synchronously under the rebounding force of the heavy spring 502, on the contrary, when the two slide shafts 507 are close to each other, the pressing block 511 moves downward, thereby driving the pressing plate 501 to move downward, further compressing the heavy spring 502; With reference to Figures 1-9 The middle alignment plate 504 is fixedly arranged on the support frame 503, and the rest of the alignment plates 504 are slidingly arranged on the support frame 503, the spacing between the adjacent alignment plates 504 is the same, the top of the alignment plate 504 is hinged with the third scissor type connecting rod 514 and the fourth scissor type connecting rod 515, the middle points of the third scissor type connecting rod 514 and the fourth scissor type connecting rod 515 are hinged, the length of the third scissor type connecting rod 514 and the length of the fourth scissor type connecting rod 515 are consistent, the end points of the third scissor type connecting rod 514 and the end points of the fourth scissor type connecting rod 515 on the adjacent alignment plates 504 are hinged, the support frame 503 is provided with a hydraulic rod 516, the output end of the hydraulic rod 516 is fixedly connected with one of the alignment plates 504, by arranging the third scissor type connecting rod 514 and the fourth scissor type connecting rod 515, when the user adjusts the spacing between the upper cutter disc 2 and the lower cutter disc 3 to make the spacing smaller, the hydraulic rod 516 is started to drive the last alignment plate 504 to move to the direction close to the adjacent alignment plate 504, at this time, because the middle alignment plate 504 is fixed, the third scissor type connecting rod 514 and the fourth scissor type connecting rod 515 between the adjacent alignment plates 504 are extruded, the included angle between each group of the third scissor type connecting rod 514 and the fourth scissor type connecting rod 515 is increased, thereby the spacing between the adjacent alignment plates 504 is synchronously reduced, on the contrary, when the user adjusts the spacing between the upper cutter disc 2 and the lower cutter disc 3 to make the spacing larger, the hydraulic rod 516 is started in the opposite direction to make the spacing between the adjacent alignment plates 504 synchronously larger, thereby the flattening roller 407 keeps aligned with the cutting axis of the upper cutter disc 2 and the lower cutter disc 3.

[0022] Specifically, the working process or working principle of the metal coil longitudinal slitting and separating machine is as follows: in use, the user puts the metal coil into use, passes the coil under the detection roller 403, and makes the lower axis of the leveling roller 407 contact the surface of the coil. When the user adjusts the distance between the upper cutter disc 2 and the lower cutter disc 3 to make the distance smaller, the hydraulic rod 516 is started to drive the last alignment plate 504 to move towards the adjacent alignment plate 504. At this time, since the middle alignment plate 504 is fixed, the third scissor-type connecting rod 514 and the fourth scissor-type connecting rod 515 between the adjacent alignment plates 504 are extruded, the included angle between each group of the third scissor-type connecting rod 514 and the fourth scissor-type connecting rod 515 is increased, the distance between the first sliding groove 505 and the second sliding groove 506 on the adjacent alignment plates 504 is reduced, the midpoint of the first scissor-type connecting rod 508 and the midpoint of the second scissor-type connecting rod 509 are hinged, the first sliding groove 505 and the second sliding groove 506 extrude the slide shaft 507, the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509 rotate in opposite directions at the hinge points, the two slide shafts 507 in the first sliding groove 505 and the second sliding groove 506 move away from each other, the pressing block 511 moves up under the limiting of the second telescopic rod 513 and the cooperation of the two connecting rods 510, the pressing plate 501 moves up under the rebound force of the heavy spring 502, the metal coil is cut by the upper cutter disc 2 and the lower cutter disc 3, the detection roller 403 is always in close contact with the surface of the metal coil due to the elastic force of the light spring 405, when the cutting axis of the coil is uneven in a wave shape, the height difference between the two detection rollers 403 is not consistent, the height difference between the two top plates 404 occurs, the differential lever 409 tilts and swings along the hinge point under the action of the first connecting rod 410, the amplitude and angle of the swing of the differential lever 409 correspond to the height difference of the two detection rollers 403, when the differential lever 409 tilts and swings, the four second connecting rods 412 are cooperated to synchronously drive the transmission lever 411 to tilt and swing at the same angle, the transmission lever 411 drives the leveling roller 407 to tilt synchronously, and the leveling roller 407 provides the overall leveling pressure to the coil through the heavy spring 502 for leveling treatment.

Claims

1. A metal coil slitting machine, comprising a support base (1), wherein an upper cutter disc (2) and a lower cutter disc (3) are disposed on the support base (1), characterized in that: The support base (1) is provided with a strip cutting auxiliary mechanism, which includes, A frame (401) is set on top of a support base (1). The number of frames (401) is the same as the number of upper cutter discs (2). The frame (401) is shaped like an inverted U. Sliding cylinders (402) are slidably sleeved on the two vertical ends of the frame (401). A detection roller (403) is provided at the bottom of the sliding cylinder (402). A top plate (404) is fixed on the surface of the sliding cylinder (402). A light spring (405) is provided between the top plate (404) and the frame (401). A mounting frame (406) is disposed between two vertical ends of a frame (401). A leveling roller (407) is rotatably mounted on the mounting frame (406). The leveling roller (407) is located between two detection rollers (403), and the height of the leveling roller (407) is higher than the height of the detection rollers (403).

2. The metal coil slitting machine according to claim 1, characterized in that, A bracket (408) is fixed on the frame (401), and a differential lever (409) is hinged on the bracket (408). Both ends of the differential lever (409) are provided with a first connecting rod (410). One end of the first connecting rod (410) is hinged to the differential lever (409), and the other end of the first connecting rod (410) is hinged to the top plate (404).

3. A metal coil slitting machine according to claim 2, characterized in that, A transmission lever (411) is hinged on the bracket (408). The transmission lever (411) is fixedly connected to the hanger (406). The length of the transmission lever (411) is the same as the length of the differential lever (409). Four second links (412) are provided between the differential lever (409) and the transmission lever (411). One end of the second link (412) is hinged to the differential lever (409), and the other end of the second link (412) is hinged to the transmission lever (411). The four second links (412) are arranged in pairs on both sides of the differential lever (409).

4. A metal coil slitting machine according to claim 1, characterized in that, The support base (1) is provided with a leveling force self-adjusting mechanism, which includes a pressing plate (501). The pressing plate (501) is located above the frame (401). The number of pressing plates (501) is the same as the number of frames (401). A heavy spring (502) is provided between the pressing plate (501) and the frame (401).

5. A metal coil slitting machine according to claim 4, characterized in that, The top of the support base (1) is fixed with a support frame (503), and a plurality of alignment plates (504) are provided on the support frame (503). The number of alignment plates (504) is the same as that of the pressing plate (501). The bottom of the alignment plate (504) is provided with a first sliding groove (505) and a second sliding groove (506). The first sliding groove (505) and the second sliding groove (506) are arranged in parallel. Two sliding shafts (507) are slidably arranged inside the first sliding groove (505) and the second sliding groove (506).

6. A metal coil slitting machine according to claim 5, characterized in that, A first scissor-type connecting rod (508) and a second scissor-type connecting rod (509) are provided between adjacent alignment plates (504). The midpoint of the first scissor-type connecting rod (508) and the midpoint of the second scissor-type connecting rod (509) are hinged together. The length of the first scissor-type connecting rod (508) and the length of the second scissor-type connecting rod (509) are the same. The tops of both ends of the first scissor-type connecting rod (508) and the tops of both ends of the second scissor-type connecting rod (509) are hinged to the sliding shaft (507).

7. A metal coil slitting machine according to claim 6, characterized in that, Connecting rods (510) are hinged to the bottom ends of both ends of the first scissor-type connecting rod (508) and the bottom ends of both ends of the second scissor-type connecting rod (509). A pressing block (511) is hinged between the connecting rods (510) on the same side. The pressing block (511) is located above the pressing plate (501). A first telescopic rod (512) is provided between the alignment plate (504) and the pressing plate (501). A second telescopic rod (513) is provided between the pressing block (511) and the alignment plate (504).

8. A metal coil slitting machine according to claim 5, characterized in that, The middle alignment plate (504) is fixed on the support frame (503), and the other alignment plates (504) are slidably disposed on the support frame (503), with the same spacing between adjacent alignment plates (504).

9. A metal coil slitting machine according to claim 5, characterized in that, The top of the alignment plate (504) is hinged with a third scissor-type connecting rod (514) and a fourth scissor-type connecting rod (515). The midpoint of the third scissor-type connecting rod (514) and the midpoint of the fourth scissor-type connecting rod (515) are hinged together. The length of the third scissor-type connecting rod (514) and the length of the fourth scissor-type connecting rod (515) are the same.

10. A metal coil slitting machine according to claim 9, characterized in that, The endpoints of the third scissor-type connecting rod (514) and the fourth scissor-type connecting rod (515) on the adjacent alignment plate (504) are hinged together. A hydraulic rod (516) is provided on the support frame (503), and the output end of the hydraulic rod (516) is fixedly connected to one of the alignment plates (504).

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