Splitting machine

Abstract

The utility model belongs to the technical field of splitting machines, and particularly relates to a splitting machine which comprises a machine frame, an upper conveying mechanism and a lower conveying mechanism, the upper conveying mechanism and the lower conveying mechanism are arranged on the machine frame and can move relatively and vertically, and the upper conveying mechanism comprises a plurality of longitudinal cutter sets arranged at intervals in the transverse direction and a cutter adjusting assembly used for adjusting the transverse positions of the longitudinal cutter sets. A positioning plate extending in the transverse direction is arranged above the longitudinal cutter set, when the longitudinal cutter set is adjusted to a preset position, the longitudinal cutter set is clamped with the outer edge of the positioning plate through springback assemblies, the cutter adjusting assembly comprises a limiting block capable of stretching out and drawing back in the longitudinal direction, and when the limiting block transversely moves to one springback assembly, the springback assembly is driven to rotate outwards to release clamping with the positioning plate; and the springback assembly and the longitudinal cutter set are driven to move in the transverse direction. Automatic adjustment of the position of the longitudinal cutter set is achieved through the cutter adjusting assembly, the adjusting efficiency is improved, and the adjusting accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of slitting machines, in particular to a slitting machine. Background Art

[0002] The slitting machine uses a conveying mechanism to transport the materials to be cut into the machine. The machine is equipped with cutting tools in the horizontal and vertical directions to cut the whole block or roll of materials into smaller material units. In order to cut out material units of different specifications, the position of the tool is adjustable, but the existing slitting machines usually use manual adjustment, that is, manually release the limit of the tool, then move and reach the specified position and then limit the position of the tool. Moreover, the position of each tool needs to be adjusted in this way, which is not only time-consuming and labor-intensive, but also has low accuracy in the position of the tool. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a slitting machine, which realizes automatic adjustment of the position of the longitudinal cutting knife group through a knife adjustment component, thereby improving not only the adjustment efficiency but also the adjustment accuracy.

[0004] The utility model provides a slitting machine, comprising a frame, an upper conveying mechanism and a lower conveying mechanism which are arranged on the frame and can move relatively vertically, the upper conveying mechanism comprising a plurality of longitudinal cutting knife groups arranged at intervals along the transverse direction and a knife adjusting assembly for adjusting the transverse position of the longitudinal cutting knife groups, a positioning plate extending along the transverse direction is arranged above the longitudinal cutting knife groups, when the longitudinal cutting knife groups are adjusted to a preset position, the outer edge of the positioning plate is clamped by a rebound assembly, the knife adjusting assembly comprises a longitudinally retractable limit block, when the limit block is moved transversely to one of the rebound assemblies, the rebound assembly is driven to rotate outward to release the clamping connection with the positioning plate, and drives the rebound assembly and the longitudinal cutting knife group to move transversely.

[0005] Furthermore, the rebound assembly includes a fixed rod fixedly connected to the longitudinal cutting knife group and a clamping rod rotatably connected to the longitudinal cutting knife group. The clamping rod is located between the positioning plate and the fixed rod. The clamping rod is clamped with the outer edge of the positioning plate. A return spring is arranged between the clamping rod and the fixed rod.

[0006] Furthermore, baffles are fixedly connected to both sides of the fixing rod, and the clamping rod is movably arranged between the two baffles.

[0007] Furthermore, the knife adjusting assembly includes a transversely arranged slideway, a slider is slidably connected in the slideway, a cylinder is longitudinally arranged on the slider, a limit block is arranged on the push rod of the cylinder, and the knife adjusting assembly also includes a knife adjusting drive member that drives the slider to move laterally.

[0008] Furthermore, the knife adjusting drive component includes a knife adjusting drive motor, a lead screw is connected to the slideway for transverse rotation, the lead screw is threadedly connected to the slider and passes through the slider, and the knife adjusting drive motor is connected to the lead screw through a pulley and a belt.

[0009] Furthermore, a lifting mechanism is also provided on the frame, the lower conveying mechanism is fixedly connected to the frame, the upper conveying mechanism is movably arranged on the frame, the lifting mechanism is connected to the upper conveying mechanism and drives the upper conveying mechanism to move vertically; or the upper conveying mechanism is fixedly connected to the frame, the lower conveying mechanism is movably arranged on the frame, the lifting mechanism is connected to the lower conveying mechanism and drives the lower conveying mechanism to move vertically.

[0010] Furthermore, the longitudinal cutting knife group includes an upper movable plate which can slide laterally and is arranged longitudinally, the rebound component is arranged on the upper movable plate, and one side of the upper movable plate is rotatably connected with the longitudinally arranged longitudinal cutting knife and the upper conveyor belt.

[0011] Furthermore, two upper conveyor belts are provided, and the two upper conveyor belts are located on both sides of the longitudinal cutting knife.

[0012] Furthermore, the lower conveying mechanism includes a plurality of lower conveying belts arranged at intervals along the lateral direction and a belt adjusting assembly for adjusting the lateral position of the lower conveying belts. The lower conveying belts and the upper conveying belts are arranged correspondingly up and down, and the belt adjusting assembly has the same structure as the knife adjusting assembly.

[0013] Furthermore, the lower conveying mechanism also includes a plurality of longitudinally arranged support smoothing strips, and the support smoothing strips are arranged on both sides of the lower conveying belt.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When adjusting the position of the longitudinal cutting knife group, the knife adjusting drive drives the slider to move horizontally to one of the rebound assemblies, the cylinder pushes the limit block longitudinally, the limit block drives the rebound assembly to rotate outward to release the clamping connection with the positioning plate, and then the slider drives the limit block to move horizontally, the limit block drives the rebound assembly and the longitudinal cutting tool to move horizontally, thereby moving the longitudinal cutting knife group to the specified position, and then the cylinder drives the limit block to retract, the rebound assembly automatically rebounds and clamps with the positioning plate, thereby limiting the position of the longitudinal cutting knife group. The knife adjusting assembly realizes the automatic adjustment of the longitudinal cutting knife group position, which not only improves the adjustment efficiency but also improves the adjustment accuracy.

[0016] (2) Conveyor belts are provided on both sides of the longitudinal cutter. After the longitudinal cutter cuts, the materials on both sides have support points and conveying power, so that the cut materials can be conveyed out stably.

[0017] (3) Supporting smooth strips are also provided on both sides of the lower conveyor belt, which can increase the supporting points of the material and improve the conveying stability of the cut material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The overall structural diagram of the slitting machine in Example 1;

[0020] Figure 2 It is a structural schematic diagram of the upper conveying mechanism in Example 1;

[0021] Figure 3 It is a schematic diagram of the structure of the knife adjustment component and the rebound component in Example 1;

[0022] Figure 4 It is a structural schematic diagram of the lower conveying mechanism in Example 1;

[0023] Figure 5 It is a structural schematic diagram of the conveying power mechanism in Example 1;

[0024] Figure 6 It is a structural schematic diagram of the lifting mechanism in Example 1;

[0025] Figure 7 Schematic diagram of the structure of the cross-cutting knife in Example 1;

[0026] Figure 8 It is a schematic diagram of the structure of the housing in Example 1;

[0027] Fig. 9 It is a structural schematic diagram of the conveying power mechanism in Example 2;

[0028] Description of the accompanying drawings: 1. frame; 2. upper conveying mechanism; 20. upper mounting frame; 200. upper support rod; 21. longitudinal cutting knife group; 210. upper moving plate; 211. longitudinal cutting knife; 212. upper conveyor belt; 22. longitudinal cutting knife power assembly; 220. longitudinal cutting knife driving motor; 221. longitudinal cutting knife rotating shaft; 23. knife adjusting assembly; 230. slideway; 231. slider; 232. cylinder; 233. limit block; 2330. clamping groove; 234. knife adjusting driving member; 2340. knife adjusting driving motor; 2341. lead screw; 2342. pulley; 2343. belt; 24. positioning plate; 25. rebound assembly; 250. fixing rod; 251. clamping rod; 252. reset spring; 253. baffle; 3. lower conveying mechanism; 3 0. Lower mounting frame; 300. Lower support rod; 31. Lower moving plate; 32. Lower conveyor belt; 33. Belt adjusting assembly; 34. Support smooth strip; 4. Conveying power mechanism; 40. Conveying drive motor; 41. Driving sprocket; 42. Lower conveyor belt shaft; 43. Driven sprocket; 44. Upper conveyor belt shaft; 45. First intermediate sprocket; 46. Second intermediate sprocket; 47. Chain; 5. Lifting mechanism; 50. Lifting drive motor; 51. Ball screw lifter; 52. Connecting shaft; 53. Coupling; 54. Support plate; 55. Through rod; 6. Cross-cutting knife; 60. Gate knife drive motor; 61. Drive shaft; 62. Rotating plate; 63. Connecting rod; 64. Sliding rod; 65. Knife body; 7. Housing; 70. Cabinet door; 71. Transparent window. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0030] The following is combined with Figure 1 To Attachment Fig. 9 And specific embodiments describe the present invention in detail.

[0031] Example 1

[0032] Reference Figure 1-8A slitting machine provided in this embodiment includes a frame 1, on which an upper conveying mechanism 2 is movably arranged, the upper conveying mechanism 2 includes an upper mounting frame 20, on which two upper support rods 200 are transversely fixedly connected, and on the two upper support rods 200, a plurality of longitudinal cutting knife groups 21 are transversely spaced and arranged, the longitudinal cutting knife groups 21 include an upper movable plate 210, the upper movable plate 210 is transversely slidably connected to the upper support rods 200, the upper support rods 200 penetrate the plurality of upper movable plates 210, and a longitudinal cutting knife 211 and an upper conveying belt 212 are rotatably connected on one side of the upper movable plate 210, the longitudinal cutting knife 211 is located between the two upper support rods 200, and the upper conveying belt 212 is provided with two, and the two upper conveying belts 212 are located on both sides of the longitudinal cutting knife 211, so as to ensure that the materials on both sides have conveying power after being cut by the longitudinal cutting knife 211.

[0033] A longitudinal cutter power assembly 22 for driving the longitudinal cutter 211 to rotate is arranged on the upper mounting frame 20, and the longitudinal cutter power assembly 22 includes a longitudinal cutter drive motor 220, and the longitudinal cutter drive motor 220 is installed at one end of the upper mounting frame 20, and a longitudinal cutter shaft 221 is connected to the upper mounting frame 20 for horizontal rotation, and the longitudinal cutter shaft 221 is located between the two upper support rods 200, and the output shaft of the longitudinal cutter drive motor 220 is connected to the longitudinal cutter shaft 221, and the longitudinal cutter shaft 221 penetrates and connects multiple longitudinal cutters 211, thereby driving multiple longitudinal cutters 211 to rotate synchronously, and the longitudinal cutters 211 can not only rotate with the longitudinal cutter shaft 221, but also move horizontally on the longitudinal cutter shaft 221.

[0034] The upper mounting frame 20 is also provided with a knife adjusting assembly 23 for adjusting the lateral position of the longitudinal cutting knife group 21. The knife adjusting assembly 23 is located above the longitudinal cutting knife group 21. The knife adjusting assembly 23 includes a transversely arranged slideway 230, the slideway 230 is fixedly connected to the upper mounting frame 20, a slider 231 is transversely slidably connected in the slideway 230, and two cylinders 232 are installed on the top surface of the slider 231. The two cylinders 232 are longitudinally arranged and the push rods are arranged away from each other. A limit block 233 is fixedly connected to the push rod end of the cylinder 232; A knife adjusting drive member 234 for driving the slider 231 to move laterally is provided on 30, and the knife adjusting drive member 234 includes a knife adjusting drive motor 2340. The knife adjusting drive motor 2340 is installed at one end of the slideway 230, and is connected with a lead screw 2341 for horizontal rotation in the slideway 230. The lead screw 2341 penetrates the slider 231 and is threadedly connected to the slider 231. The output shaft of the knife adjusting drive motor 2340 is connected to one end of the lead screw 2341 through two pulleys 2342 and a belt 2343, thereby driving the lead screw 2341 to rotate.

[0035] Two toothed positioning plates 24 are transversely fixedly connected to the slide 230, and the two positioning plates 24 are located on both sides of the slide 230. Two groups of rebound components 25 are arranged on each upper movable plate 210, and the two groups of rebound components 25 are located on both sides of the slide 230. The rebound component 25 includes a vertically fixed fixed rod 250 and a clamping rod 251 rotatably connected to the upper movable plate 210, and the clamping rod 251 is located between the fixed rod 250 and the positioning plate 24. The side of the clamping rod 251 close to the positioning plate 24 is provided with teeth matched with the positioning plate 24, and the clamping rod 251 is clamped with the positioning plate 24. A return spring 252 is arranged between the clamping rod 251 and the fixed rod 250, and the return spring 252 has a tendency to drive the clamping rod 251 to rotate toward the direction close to the positioning plate 24.

[0036] Two baffles 253 are longitudinally fixedly connected to the fixed rod 250, and the two baffles 253 are located on both sides of the fixed rod 250. The clamping rod 251 is movably arranged between the two baffles 253. The baffle 253 can limit the rotation path of the clamping rod 251 and improve the rotation stability of the clamping rod 251; one end of the baffle 253 close to the clamping rod 251 is tilted inward to form an inclined surface, and a clamping groove 2330 matched with the baffle 253 is opened in the limit block 233. When the cylinder 232 pushes out the limit block 233, the limit block 233 pushes the clamping rod 251 to rotate, and at the same time, the baffle 253 is inserted into the clamping groove 2330, and then the limit block 233 can drive the longitudinal cutting knife group 21 to move horizontally.

[0037] A lower conveying mechanism 3 is fixedly arranged on the frame 1, and the lower conveying mechanism 3 is located below the upper conveying mechanism 2. The lower conveying mechanism 3 includes a lower mounting frame 30, and the lower mounting frame 30 is fixedly connected to the frame 1. Two lower support rods 300 are fixedly connected to the lower mounting frame 30 in a transverse direction. A plurality of lower movable plates 31 are arranged in a transverse interval on the two lower support rods 300. The lower movable plates 31 are connected to the lower support rods 300 in a transverse sliding manner. A lower conveying belt 32 is rotatably connected to one side of the lower movable plate 31. The lower conveying belt 32 is also arranged in two pieces. The two lower conveying belts 32 are located on both sides of the longitudinal cutting knife 211. The lower conveying belt 32 and the upper conveying belt 212 are arranged in correspondence with each other up and down, and the cut material is conveyed between the upper conveying belt 212 and the lower conveying belt 32.

[0038] A belt adjusting assembly 33 is provided on the lower mounting frame 30. The belt adjusting assembly 33 has the same structure as the knife adjusting assembly 23 and will not be described in detail here. The belt adjusting assembly 33 is used to adjust the lateral position of the lower movable plate 31 and the lower conveyor belt 32, so as to ensure that they are arranged correspondingly with the longitudinal cutting knife group 21 up and down; a support smoothing strip 34 is placed between the two lower support rods 300, and the support smoothing strip 34 is longitudinally arranged and located between the two adjacent lower movable plates 31. The support smoothing strip 34 is used to support the cut material and improve the conveying stability of the cut material.

[0039] A conveying power mechanism 4 is arranged between the upper mounting frame 20 and the lower mounting frame 30, and the conveying power mechanism 4 is used for driving the upper conveyor belt 212 and the lower conveyor belt 32 to rotate. The conveying power mechanism 4 includes a conveying drive motor 40, and the conveying drive motor 40 is installed at one end of the lower mounting frame 20. A driving sprocket 41 is installed on the output shaft of the conveying drive motor 40. A lower conveyor belt rotating shaft 42 is connected to the lower mounting frame 30 for transverse rotation. The output shaft of the conveying drive motor 40 is connected to the lower conveyor belt rotating shaft 42. The lower conveyor belt rotating shaft 42 passes through the driving wheels connected to the multiple lower conveyor belts 32, thereby driving the multiple lower conveyor belts 32 to rotate, and the lower conveyor belt 32 can also move laterally on the lower conveyor belt rotating shaft 42.

[0040] A driven sprocket 43 is rotatably connected to one end of the upper mounting frame 20, and an upper conveyor belt shaft 44 is rotatably connected to the upper mounting frame 20. The driven sprocket 43 is fixedly connected to the upper conveyor belt shaft 44, and the upper conveyor belt shaft 44 penetrates the driving wheels connected to multiple upper conveyor belts 212, thereby driving multiple upper conveyor belts 212 to rotate, and the upper conveyor belts 212 can also move laterally on the upper conveyor belt shaft 44; a first intermediate sprocket 45 is rotatably connected to the frame 1, and the first intermediate sprocket 45 is located above the driven sprocket 43. One end of the mounting frame 20 is also rotatably connected to a second intermediate sprocket 46, which is located between the driving sprocket 41 and the driven sprocket 43 in the vertical direction, and between the driven sprocket 43 and the first intermediate sprocket 45 in the longitudinal direction. A chain 47 is sleeved and meshed on the driving sprocket 41, the first intermediate sprocket 45, the driven sprocket 43 and the second intermediate sprocket 46, and the chain 47 passes through the driving sprocket 41, the first intermediate sprocket 45, the driven sprocket 43 and the second intermediate sprocket 46 in sequence to form a closed loop.

[0041] A lifting mechanism 5 for driving the upper conveying mechanism 2 to move vertically is provided on the frame 1. The lifting mechanism 5 is located below the lower conveying mechanism 3. The lifting mechanism 5 includes a lifting drive motor 50 and four ball screw lifts 51. The lifting drive motor 50 is located in the middle position of the bottom of the frame 1. The four ball screw lifts 51 are located at the four corners of the frame 1 and are vertically arranged. The two ball screw lifts 51 on the same side are connected together by a connecting shaft 52 and a coupling 53. The ball screw lifts 51 on both sides of the lifting drive motor 50 are also connected to the lifting drive motor 50 through the connecting shaft 52 and the coupling 53, so that the lifting drive motor 50 drives the four ball screw lifts 51 at the same time.

[0042] A support plate 54 is fixedly connected between the tops of the two ball screw elevators 51 on the same side, and a plurality of through rods 55 are vertically fixedly connected to the top surface of the support plate 54. The through rods 55 penetrate the lower mounting frame 30 and are fixedly connected to the upper mounting frame 20 at the top, thereby enabling the ball screw elevator 51 to drive the upper mounting frame 20 to move vertically.

[0043] A cross-cutting knife 6 for transverse cutting is also provided on the frame 1. The cross-cutting knife 6 is located at the end of the conveying direction of the lower conveyor belt 32. The cross-cutting knife 6 includes a gate knife driving motor 60. The gate knife driving motor 60 is installed at the bottom of the frame 1. A driving shaft 61 is also connected to the bottom of the frame 1 for transverse rotation. The gate knife driving motor 60 is connected to the driving shaft 61 and drives the driving shaft 61 to rotate. Both ends of the driving shaft 61 are fixedly connected to a rotating plate 62, and a connecting rod 63 is rotatably connected to one end of the rotating plate 62. A sliding rod 64 is vertically slidably connected to the frame 1, and the bottom end of the sliding rod 64 is rotatably connected to the end of the connecting rod 63 away from the rotating plate 62. A transversely arranged knife body 65 is fixedly connected between the top ends of the two sliding rods 64, so as to perform transverse cutting of the material.

[0044] A shell 7 for protecting the internal mechanism is fixedly installed on the outside of the frame 1. A plurality of cabinet doors 70 are installed around the shell 7. The cabinet doors 70 are convenient for the staff to inspect and repair the internal mechanism. A transparent window 71 is also provided on the shell 7. The transparent window 71 is convenient for the staff to check the working condition inside the slitting machine in time.

[0045] The implementation principle of Example 1 is as follows: before the material is cut, the lifting mechanism 5 first drives the upper conveying mechanism 2 to move upward, and the knife adjustment driving motor 2340 drives the lead screw 2341 to rotate through the pulley 2342 and the belt 2343, and the lead screw 2341 drives the slider 231 to move horizontally. When the slider 231 moves to one of the positions of the rebound components 25, the cylinder 232 pushes the limit block 233 to move, and the limit block 233 pushes the clamping rod 251 to rotate outward, so that the clamping state between the clamping rod 251 and the positioning plate 24 is released, and the limit block 233 drives the longitudinal cutting knife group 21 to move horizontally. When the longitudinal cutting knife group 21 moves to the specified position, the cylinder 232 drives the limit block 233 to retract, and the clamping rod 251 rotates in the direction close to the positioning plate 24 under the elastic action of the reset spring 252, and the clamping rod 251 is clamped with the positioning plate 24 again, thereby limiting the lateral position of the longitudinal cutting knife group 21, that is, the position adjustment of the longitudinal cutting knife group 21 is completed.

[0046] During the position adjustment process of the longitudinal cutting knife group 21, the belt adjusting assembly 33 simultaneously adjusts the lateral position of the lower conveyor belt 32 so that the lower conveyor belt 32 is set correspondingly to the upper conveyor belt 212. After the lateral position adjustment is completed, the lifting mechanism 5 drives the upper conveying mechanism 2 to move downward, and adjusts the distance between the upper conveyor belt 212 and the lower conveyor belt 32 according to the thickness of the material. Then the material can be inserted between the upper conveyor belt 212 and the lower conveyor belt 32 for cutting.

[0047] Example 2

[0048] Reference Fig. 9 The difference between this embodiment and embodiment 1 is that the upper conveying mechanism 2 is fixedly connected to the frame 1, the lower conveying mechanism 3 is movably arranged on the frame 1, and the lifting mechanism 5 is connected to the lower conveying mechanism 3 and drives the lower conveying mechanism 3 to move vertically. Correspondingly, the conveying power mechanism 4 also needs to be changed accordingly. The conveying drive motor 40 and the driving sprocket 41 are installed at one end of the upper mounting frame 20, the driving sprocket 41 is fixedly connected to the upper conveyor belt shaft 44, the driven sprocket 43 is rotatably connected to one end of the lower mounting frame 30, the first intermediate sprocket 45 is also rotatably connected to the frame 1, but the first intermediate sprocket 45 is located below the driven sprocket 43, and the second intermediate sprocket 46 is rotatably connected to the lower mounting frame 30, and the second intermediate sprocket 46 is rotatably connected to the lower mounting frame 30. The rotating shaft 42 is fixedly connected, the second intermediate sprocket 46 is located between the driving sprocket 41 and the driven sprocket 43 in the vertical direction, and the second intermediate sprocket 46 is located between the driven sprocket 43 and the first intermediate sprocket 45 in the longitudinal direction. A chain 47 is sleeved and meshed on the driving sprocket 41, the first intermediate sprocket 45, the driven sprocket 43 and the second intermediate sprocket 46, and the chain 47 passes through the driving sprocket 41, the first intermediate sprocket 45, the second intermediate sprocket 46 and the driven sprocket 43 in sequence to form a closed loop.

[0049] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as a limitation on the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A slitting machine, characterized in that: It comprises a frame, an upper conveying mechanism and a lower conveying mechanism which are arranged on the frame and can move vertically relative to each other; The upper conveying mechanism comprises a plurality of longitudinal cutting knife groups arranged at intervals in the transverse direction and a knife adjusting assembly for adjusting the transverse position of the longitudinal cutting knife groups, and a positioning plate extending in the transverse direction is provided above the longitudinal cutting knife groups; when the longitudinal cutting knife groups are adjusted to a preset position, the longitudinal cutting knife groups are engaged with the outer edge of the positioning plate through a rebound assembly; The knife adjusting assembly includes a longitudinally retractable limit block. When the limit block moves laterally to one of the rebound assemblies, the rebound assembly is driven to rotate outward to release the clamping connection with the positioning plate, and drives the rebound assembly and the longitudinal cutting knife group to move laterally.

2. The slitting machine according to claim 1, characterized in that: The rebound assembly includes a fixed rod fixedly connected to the longitudinal cutting knife group and a clamping rod rotatably connected to the longitudinal cutting knife group. The clamping rod is located between the positioning plate and the fixed rod. The clamping rod is clamped with the outer edge of the positioning plate. A return spring is arranged between the clamping rod and the fixed rod.

3. The slitting machine according to claim 2, characterized in that: Baffles are fixedly connected to both sides of the fixing rod, and the clamping rod is movably arranged between the two baffles.

4. The slitting machine according to claim 1, characterized in that: The knife adjusting assembly includes a transversely arranged slideway, a slider is slidably connected in the slideway, a cylinder is longitudinally arranged on the slider, the limit block is arranged on the push rod of the cylinder, and the knife adjusting assembly also includes a knife adjusting driving member for driving the slider to move transversely.

5. The slitting machine according to claim 4, characterized in that: The knife adjusting drive member comprises a knife adjusting drive motor, a lead screw is connected in the slideway for transverse rotation, the lead screw is threadedly connected to the slider and passes through the slider, and the knife adjusting drive motor is connected to the lead screw via a pulley and a belt.

6. The slitting machine according to claim 1, characterized in that: The frame is also provided with a lifting mechanism, the lower conveying mechanism is fixedly connected to the frame, the upper conveying mechanism is movably arranged on the frame, the lifting mechanism is connected to the upper conveying mechanism and drives the upper conveying mechanism to move vertically; or the upper conveying mechanism is fixedly connected to the frame, the lower conveying mechanism is movably arranged on the frame, the lifting mechanism is connected to the lower conveying mechanism and drives the lower conveying mechanism to move vertically.

7. The slitting machine according to claim 1, characterized in that: The longitudinal cutting knife group comprises an upper movable plate which can slide transversely and is arranged longitudinally, the rebound component is arranged on the upper movable plate, and one side of the upper movable plate is rotatably connected with the longitudinally arranged longitudinal cutting knife and the upper conveyor belt.

8. The slitting machine according to claim 7, characterized in that: Two upper conveyor belts are provided, and the two upper conveyor belts are located on both sides of the longitudinal cutting knife.

9. The slitting machine according to claim 7, characterized in that: The lower conveying mechanism includes a plurality of lower conveying belts arranged at intervals along the lateral direction and a belt adjusting assembly for adjusting the lateral position of the lower conveying belts. The lower conveying belts are arranged correspondingly to the upper conveying belts in the upper and lower directions, and the belt adjusting assembly has the same structure as the knife adjusting assembly.

10. The slitting machine according to claim 9, characterized in that: The lower conveying mechanism also includes a plurality of longitudinally arranged support smoothing strips, and the support smoothing strips are arranged on both sides of the lower conveying belt.

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