A metal coil slitting machine

Abstract

This invention provides a metal coil slitting machine, belonging to the field of metal coil cutting technology. The metal coil slitting machine includes a support base, on which an upper cutter head and a lower cutter head are mounted. A strip cutting auxiliary mechanism is also mounted on the support base, comprising a frame and a hanger. By incorporating the strip cutting auxiliary mechanism, this invention allows the leveling rollers to adaptively adjust automatically according to the local shape of the coil, thereby applying greater pressure to the high points of the wavy coil and less pressure to the low points. This makes it easier to overcome the internal stress at the wavy areas of the coil. Furthermore, each leveling roller is located on the cutting axis of the upper and lower cutter heads. As the coil is pulled, only the wavy coil at the cutting axis is leveled, minimizing macroscopic interference and significantly improving cutting accuracy compared to existing technologies.

Description

Technical Field

[0001] This invention relates to the field of metal coil slitting technology, and more specifically, to a metal coil slitting machine. Background Technology

[0002] Metal coils are typically stored and transported in coil form before processing. When in use, they need to be slit along their length into strips of a predetermined width using a slitting machine. Slitting accuracy is a key indicator of product quality. However, during the rolling, winding, and subsequent unwinding processes, the release of residual stress often causes wavy deformation along the width of the coil surface. This wavy deformation causes serious problems during slitting.

[0003] In existing technologies, slitting machines are usually installed before slitting machines to improve the shape of incoming material. However, these slitting machines are mostly independent large-scale equipment. Their working method is to apply uniform or fixed pressure to the entire width of the roll to eliminate macroscopic bending and unevenness. This overall slitting method has obvious limitations. For the roll that passes through dynamically after unwinding, the position and amplitude of its wave crests and troughs are randomly changing. The fixed slitting roller system cannot make real-time, localized targeted adjustments, resulting in limited slitting effect. Secondly, for slitting machines, what really affects the cutting accuracy of a single cutter head is only the shape of a small area near the cutting axis of the cutter head. Applying huge slitting force to the entire wide roll not only consumes a lot of energy and requires large equipment, but may also introduce new stress problems, such as edge wrinkling or material thinning, due to over-correction or improper pressure distribution when slitting narrow strips. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a metal coil slitting machine that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a metal coil slitting machine, including a support base, an upper cutter head and a lower cutter head disposed on the support base, and a strip slitting auxiliary mechanism disposed on the support base. The strip slitting auxiliary mechanism includes...

[0007] A frame is set on top of the support base. The number of frames is the same as the number of upper cutter discs. The frame is shaped like an inverted U. Sliding cylinders are slidably fitted on the two vertical ends of the frame. Detection rollers are provided at the bottom of the sliding cylinders. A top plate is fixed on the surface of the sliding cylinders. A light spring is provided between the top plate and the frame.

[0008] A mounting frame is provided between two vertical ends of a frame. A leveling roller is rotatably mounted on the mounting frame. The leveling roller is located between two detection rollers, and the height of the leveling roller is higher than the height of the detection rollers.

[0009] In a preferred embodiment, a bracket is fixed to the frame, and a differential lever is hinged to the bracket. Both ends of the differential lever are provided with a first connecting rod. One end of the first connecting rod is hinged to the differential lever, and the other end of the first connecting rod is hinged to the top plate.

[0010] In a preferred embodiment, a transmission lever is hinged to the bracket, the transmission lever is fixedly connected to the mounting frame, the length of the transmission lever is the same as the length of the differential lever, and four second links are provided between the differential lever and the transmission lever. One end of the second link is hinged to the differential lever, and the other end of the second link is hinged to the transmission lever. The four second links are arranged in pairs on both sides of the differential lever.

[0011] In a preferred embodiment, the support base is provided with a leveling force self-adjusting mechanism, the leveling force self-adjusting mechanism includes a pressing plate, the pressing plate is disposed above the frame, the number of pressing plates is the same as the number of frames, and a heavy-duty spring is provided between the pressing plate and the frame.

[0012] In a preferred embodiment, a support frame is fixed to the top of the support base, and a plurality of alignment plates are provided on the support frame. The number of alignment plates is the same as that of the pressing plates. A first sliding groove and a second sliding groove are provided at the bottom of the alignment plates. The first sliding groove and the second sliding groove are arranged in parallel, and two sliding shafts are slidably arranged inside the first sliding groove and the second sliding groove.

[0013] In a preferred embodiment, a first scissor-type connecting rod and a second scissor-type connecting rod are provided between adjacent alignment plates. The midpoint of the first scissor-type connecting rod and the midpoint of the second scissor-type connecting rod are hinged together. The length of the first scissor-type connecting rod and the length of the second scissor-type connecting rod are the same. The tops of both ends of the first scissor-type connecting rod and the tops of both ends of the second scissor-type connecting rod are hinged to a sliding shaft.

[0014] In a preferred embodiment, connecting rods are hinged to the bottom ends of both ends of the first scissor-type connecting rod and the bottom ends of both ends of the second scissor-type connecting rod. A pressing block is hinged between the connecting rods on the same side. The pressing block is located above the pressing plate. A first telescopic rod is provided between the alignment plate and the pressing plate. A second telescopic rod is provided between the pressing block and the alignment plate.

[0015] In a preferred embodiment, the middle alignment plate is fixed to the support frame, and the other alignment plates are slidably disposed on the support frame, with the spacing between adjacent alignment plates being the same.

[0016] In a preferred embodiment, the top of the alignment plate is hinged with a third scissor-type link and a fourth scissor-type link, the midpoints of the third scissor-type link and the fourth scissor-type link are hinged together, and the lengths of the third scissor-type link and the fourth scissor-type link are the same.

[0017] In a preferred embodiment, the endpoints of the third and fourth scissor-shaped links on adjacent alignment plates are hinged together, and a hydraulic rod is provided on the support frame, with the output end of the hydraulic rod fixedly connected to one of the alignment plates.

[0018] The present invention provides a metal coil slitting machine, the beneficial effects of which include:

[0019] 1. By setting up a strip cutting auxiliary mechanism, the leveling roller can automatically adjust itself according to the local shape of the roll material. This allows for greater pressure to be applied to the high points of the wavy roll material and less pressure to be applied to the low points. This makes it easier to overcome the internal stress at the wavy part of the roll material. Furthermore, each leveling roller is located on the cutting axis of the upper and lower cutter discs. As the roll material is pulled, it only performs leveling treatment on the wavy roll material at the cutting axis, minimizing macroscopic interference. Compared with existing technologies, this can greatly improve cutting accuracy.

[0020] 2. By setting a self-adjusting mechanism for leveling force, the overall pressure applied to the leveling roller is adjusted. When the slit width is smaller, the relative distance between adjacent alignment plates is smaller, and the relative distance between the pressing plate and the frame is larger. At this time, the pressure applied by the pressing plate to the heavy spring is smaller, thus avoiding the problem of plastic deformation easily occurring when cutting the roll material due to excessive leveling pressure near the input ends of the upper and lower cutter discs when the slit width is smaller. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention;

[0023] Figure 2 A top-view schematic diagram of the overall structure is provided for embodiments of the present invention;

[0024] Figure 3 A schematic diagram of the upper and lower cutter heads is provided for embodiments of the present invention;

[0025] Figure 4 A structural schematic diagram of the support frame is provided for embodiments of the present invention;

[0026] Figure 5 A schematic diagram of the support frame structure from a bottom view is provided for embodiments of the present invention;

[0027] Figure 6 Structural schematic diagrams of the third and fourth scissor-type connecting rods are provided for embodiments of the present invention;

[0028] 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;

[0029] Figure 8 A schematic diagram of the strip slitting auxiliary mechanism is provided for embodiments of the present invention;

[0030] Figure 9 A schematic diagram of the connecting rod and pressing block is provided for embodiments of the present invention.

[0031] 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

[0032] 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.

[0033] Reference Figures 1-9This invention provides a technical solution: a metal coil slitting machine, including a support base 1, an upper cutter head 2 and a lower cutter head 3 disposed on the support base 1, and a strip slitting auxiliary mechanism disposed on the support base 1. The strip slitting auxiliary mechanism includes a frame 401 and a hanger 406. The frame 401 is disposed on the top of the support base 1, and the number of frames 401 is the same as the number of upper cutter heads 2. The frame 401 is shaped like an inverted U. Sliding cylinders 402 are slidably fitted on the two vertical ends of the frame 401, and the bottom of the sliding cylinders 402 is provided with... The surface of the inspection roller 403 and the slide 402 is fixed with a top plate 404. A light spring 405 is provided between the top plate 404 and the frame 401. The hanger 406 is located between the two vertical ends of the frame 401. A leveling roller 407 is rotatably mounted on the hanger 406. The leveling roller 407 is located between the two inspection rollers 403. The height of the leveling roller 407 is higher than the height of the inspection rollers 403. By setting up a strip cutting auxiliary mechanism, after the user unwinds the metal coil, the coil passes under the inspection rollers 403. At this point, the lower axis of the leveling roller 407 is in contact with the surface of the coil. The heavy-duty spring 502 provides overall leveling pressure to the leveling roller 407. Before the metal coil is cut by the upper cutter head 2 and the lower cutter head 3, the detection roller 403 remains in close contact with the surface of the metal coil due to the elastic force of the light spring 405. Since the metal coil often becomes wavy after unwinding due to stress, a height difference will occur between the two detection rollers 403 on each set of detection rollers 403, simultaneously driving the leveling roller 407 to... The tilt allows the leveling roller 407 to automatically adjust itself according to the local shape of the roll material, thereby applying greater pressure to the high points of the wavy roll material and less pressure to the low points. This makes it easier to overcome the internal stress at the wavy part of the roll material. Furthermore, each leveling roller 407 is located on the cutting axis of the upper cutter head 2 and the lower cutter head 3. As the roll material is pulled, it only performs leveling treatment on the wavy roll material at the cutting axis, minimizing macroscopic interference. Compared with the existing technology, this can greatly improve the cutting accuracy.

[0034] Reference Figures 1-9 A bracket 408 is fixed on the frame 401, and a differential lever 409 is hinged on the bracket 408. A first connecting rod 410 is provided at both ends of the differential lever 409. 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. By setting the first connecting rod 410, when the cutting axis of the roll material is uneven and wavy, the height between the two detection rollers 403 is inconsistent, and a height difference appears between the two top plates 404. Under the action of the first connecting rod 410, the differential lever 409 tilts and swings along its own hinge point, and the amplitude and angle of the swing of the differential lever 409 correspond to the height difference at the two detection rollers 403.

[0035] Reference Figures 1-9 A transmission lever 411 is hinged to the bracket 408. The transmission lever 411 is fixedly connected to the mounting frame 406. The length of the transmission lever 411 is the same as the length of the differential lever 409. The hinge points of the differential lever 409 and the transmission lever 411 are both their midpoints. Four second connecting rods 412 are provided between the differential lever 409 and the transmission lever 411. One end of the second connecting rod 412 is hinged to the differential lever 409, and the other end of the second connecting rod 412 is hinged to the transmission lever 411. The four second connecting rods 412 are arranged in pairs on both sides of the differential lever 409. Each hinge point of the second connecting rod 412 is provided with a bidirectional overrunning clutch. The inner ring is fixed to the differential lever 409, while the outer ring is fixed to the transmission lever 411. Under the action of the bidirectional overrunning clutch, the tilting swing of the differential lever 409 can synchronously drive the transmission lever 411 to tilt. The reaction force of the roll material on the leveling roller 407 will not be transmitted to the differential lever 409, thereby ensuring the accuracy of the detection roller 403. By setting the transmission lever 411, when the differential lever 409 tilts, the four second connecting rods 412 work together to synchronously drive the transmission lever 411 to tilt at the same angle. The transmission lever 411 drives the leveling roller 407 to tilt synchronously, thereby leveling the roll material in a targeted manner.

[0036] Reference Figures 1-9 The support base 1 is equipped with a self-adjusting leveling force mechanism, which includes a pressing plate 501. The pressing plate 501 is positioned above the frame 401, and the number of pressing plates 501 is the same as the number of frames 401. A heavy-duty spring 502 and a damper are arranged between the pressing plate 501 and the crossbeam of the frame 401. The damper is used to improve the stability of the heavy-duty spring 502 and maintain the synchronous horizontal movement between the pressing plate 501 and the frame 401. By setting the self-adjusting leveling force mechanism, the alignment plate 504 is moved before the metal coil is slit, so that the central axis of each alignment plate 504 is aligned with the upper... The cutter head 2 and the lower cutter head 3 are aligned. At this time, the relative distance between the pressing plate 501 and the frame 401 is adaptively changed according to the relative distance between the adjacent alignment plates 504, thereby adjusting the overall pressure applied to the leveling roller 407. When the cutting width is smaller, the relative distance between the adjacent alignment plates 504 is smaller. At this time, the relative distance between the pressing plate 501 and the frame 401 is larger, and the pressure applied by the pressing plate 501 to the heavy spring 502 is smaller. This avoids the problem that the excessive leveling pressure near the input end of the upper cutter head 2 and the lower cutter head 3 when the cutting width is smaller, which may cause plastic deformation when the roll material is cut.

[0037] Reference Figures 1-9A support frame 503 is fixedly mounted on the top of the support base 1. Several alignment plates 504 are mounted on the support frame 503, the number of which is the same as the pressing plate 501. A first sliding groove 505 and a second sliding groove 506 are formed at the bottom of each alignment plate 504. The first sliding groove 505 and the second sliding groove 506 are arranged parallel to each other. Two sliding shafts 507 are slidably mounted inside each of the first and second sliding grooves 505 and 506. The sliding shafts 507 are confined within the grooves by linear slide rails, and can only slide within the first and second sliding grooves 505 and 506. 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 is the same as the length of the second scissor-type connecting rod 509. 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. By setting 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 located 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 hinged, the first sliding groove 505 and the second sliding groove 506 squeeze the sliding shaft 507, causing the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509 to rotate in opposite directions at their hinge points. The two sliding shafts 507 inside the first sliding groove 505 and the second sliding groove 506 move away from each other. Conversely, when the relative distance between adjacent alignment plates 504 is larger, the two sliding shafts 507 inside the first sliding groove 505 and the second sliding groove 506 move closer to each other.

[0038] Reference Figures 1-9Both ends of the first scissor-type connecting rod 508 and both ends of the second scissor-type connecting rod 509 are hinged to connecting rods 510. 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, and a second telescopic rod 513 is provided between the pressing block 511 and the alignment plate 504. By setting the pressing block 511, when the required slitting width is smaller, the two sliding shafts 507 inside the first groove 505 and the second groove 506 move further apart. With the limit of the second telescopic rod 513 and the cooperation of the two connecting rods 510, the pressing block 511 moves upward. Since the heavy spring 502 itself has a certain pre-tightening force, the frame 401 drives the leveling roller 407 to press against the roll material. The initial state is the compressed state. At this time, the pressing block 511 moves upward, and the pressing plate 501 moves upward synchronously under the action of the rebound force of the heavy spring 502. Conversely, when the two sliding shafts 507 approach each other, the pressing block 511 moves downward, thereby driving the pressing plate 501 to move downward, further compressing the heavy spring 502.

[0039] Reference Figures 1-9 The middle alignment plate 504 is fixedly mounted on the support frame 503, while the other alignment plates 504 are slidably mounted on the support frame 503. The spacing between adjacent alignment plates 504 is the same. A third scissor-type connecting rod 514 and a fourth scissor-type connecting rod 515 are hinged to the top of each alignment plate 504. The midpoints of the third and fourth scissor-type connecting rods 514 and 515 are hinged together, and their lengths are the same. The endpoints of the third and fourth scissor-type connecting rods 514 and 515 on adjacent alignment plates 504 are hinged together. A hydraulic rod 516 is mounted on the support frame 503, and its output end is fixedly connected to one of the alignment plates 504. By using the third and fourth scissor-type connecting rods 514 and 515, when the user aligns the alignment plate with the support frame 503... After adjusting the distance between the cutter head 2 and the lower cutter head 3 to make the distance smaller, the hydraulic rod 516 is activated, which drives the outermost alignment plate 504 to move closer to 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 pressed against each other, and the included angle between each set of the third scissor-type connecting rod 514 and the fourth scissor-type connecting rod 515 increases, thereby making the distance between the adjacent alignment plates 504 decrease synchronously. Conversely, when the user adjusts the distance between the upper cutter head 2 and the lower cutter head 3 to make the distance larger, the hydraulic rod 516 is activated in the opposite direction, making the distance between the adjacent alignment plates 504 increase synchronously, thereby keeping the leveling roller 407 aligned with the cutting axis of the upper cutter head 2 and the lower cutter head 3.

[0040] Specifically, the working process or working principle of this metal coil slitting machine is as follows: During use, the user unwinds the metal coil and passes it under the detection roller 403. At this time, the lower axis of the leveling roller 407 contacts the surface of the coil. When the user adjusts the distance between the upper cutter disc 2 and the lower cutter disc 3 to reduce the distance, the hydraulic rod 516 is activated, causing the end alignment plate 504 to move closer to the adjacent alignment plate 504. 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 press against each other, and each set of third... The included angles between the scissor-type connecting rod 514 and the fourth scissor-type connecting rod 515 both increase, thus causing the distance between adjacent alignment plates 504 to decrease synchronously. The distance between the first sliding groove 505 and the second sliding groove 506 located on the adjacent alignment plates 504 decreases. Since the midpoints of the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509 are hinged, the compression of the sliding shaft 507 by the first and second sliding grooves 505 and 506 causes the first scissor-type connecting rod 508 and the second scissor-type connecting rod 509 to rotate simultaneously in opposite directions around their hinge points. The two sliding shafts 507 inside the first and second sliding grooves 505 and 506... 07. With the limit of the second telescopic rod 513 and the cooperation of the two connecting rods 510, the pressing block 511 moves upward. Due to the pre-tension of the heavy spring 502, the frame 401 drives the leveling roller 407 to press against the coil. The initial state is the compressed state. At this time, the pressing block 511 moves upward, and the pressing plate 501 moves upward synchronously under the rebound force of the heavy spring 502. Before 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 roller 403 is always in close contact with the surface of the metal coil. When the cutting axis of the coil is uneven and wavy, this... When the heights of the two detection rollers 403 are inconsistent and a height difference occurs between the two top plates 404, the differential lever 409 tilts and swings along its hinge point under the action of the first link 410. The amplitude and angle of the swing of the differential lever 409 correspond to the height difference between the two detection rollers 403. When the differential lever 409 tilts and swings, the transmission lever 411 is synchronously driven to tilt and swing at the same angle through the cooperation of the four second links 412. The transmission lever 411 drives the leveling roller 407 to tilt synchronously. The heavy spring 502 provides the leveling roller 407 with overall leveling pressure to level the roll material.

Claims

1. A metal coil longitudinal slitting and slitting machine, comprising a support seat (1) provided with an upper blade disc (2) and a lower blade disc (3), characterized in that: The support seat (1) is provided with a strip cutting auxiliary mechanism, the strip cutting auxiliary mechanism comprises, The frame (401) is provided on the top of the support seat (1), the number of the frame (401) is consistent with the number of the upper cutter head (2), the shape of the frame (401) is inverted U-shaped, the two vertical ends of the frame (401) are slidably sleeved with slide cylinders (402), the bottom of the slide cylinder (402) is provided with a detection roller (403), the surface of the slide cylinder (402) is fixedly provided with a top plate (404), and the top plate (404) and the frame (401) are provided with light springs (405). The mounting rack (406) is arranged between the two vertical ends of the frame (401), and the leveling roller (407) is rotatably arranged on the mounting rack (406), the leveling roller (407) is located between the two detection rollers (403), and the height of the leveling roller (407) is higher than that of the detection roller (403).

2. A slitting machine according to claim 1, characterized in that The frame (401) is fixedly provided with a support (408), the differential lever (409) is hinged to the support (408), the two ends of the differential lever (409) are provided with first connecting rods (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 slitting machine according to claim 2, characterised in that The transmission lever (411) is hinged to the support (408), the transmission lever (411) is fixedly connected with the mounting rack (406), the length of the transmission lever (411) is consistent with the length of the differential lever (409), 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 to the differential lever (409), the other end of the second connecting rod (412) is hinged to the transmission lever (411), and the four second connecting rods (412) are arranged in two groups on the two sides of the differential lever (409).

4. A slitting machine according to claim 1, characterized in that The support seat (1) is provided with a self-adjusting mechanism for leveling force, the self-adjusting mechanism for leveling force comprises a pressing plate (501), the pressing plate (501) is arranged above the frame (401), the number of the pressing plate (501) is consistent with the number of the frame (401), and the pressing plate (501) and the frame (401) are provided with heavy springs (502).

5. A metal coil slitting machine according to claim 4, characterised in that, The top of the support seat (1) is fixedly provided 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 the number 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, and the first sliding groove (505) and the second sliding groove (506) are slidably provided with two slide shafts (507).

6. A metal coil slitting machine according to claim 5, wherein, First and second scissor links (508, 509) are arranged between adjacent alignment plates (504), the midpoints of the first and second scissor links (508, 509) are hingedly connected, the lengths of the first and second scissor links (508, 509) are consistent, and the top ends of the first and second scissor links (508, 509) are hingedly connected to a sliding shaft (507).

7. A metal coil slitting machine according to claim 6, characterised in that, Bottom ends of the first and second scissor links (508, 509) are hingedly connected to a connecting rod (510), and the connecting rods (510) on the same side are hingedly connected to a pressing block (511), the pressing block (511) is located above a pressing plate (501), a first telescopic rod (512) is arranged between the alignment plate (504) and the pressing plate (501), and a second telescopic rod (513) is arranged between the pressing block (511) and the alignment plate (504).

8. A metal coil slitting machine according to claim 5, wherein, The intermediate alignment plate (504) is fixedly arranged on a support frame (503), and the remaining alignment plates (504) are slidingly arranged on the support frame (503), and the distances between adjacent alignment plates (504) are the same.

9. A metal coil slitting machine according to claim 5, wherein A third and a fourth scissor link (514, 515) are hingedly connected to the top of the alignment plate (504), the midpoints of the third and fourth scissor links (514, 515) are hingedly connected, and the lengths of the third and fourth scissor links (514, 515) are consistent.

10. A metal coil slitting machine according to claim 9, wherein, End points of the third and fourth scissor links (514, 515) on adjacent alignment plates (504) are hingedly connected, and a hydraulic rod (516) is arranged on the support frame (503), and an output end of the hydraulic rod (516) is fixedly connected to one of the alignment plates (504).

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