A high-precision strip slitter

Abstract

The present invention relates to the technical field of slitting machines, specifically a high-precision strip slitting machine, which includes a cutting mechanism, a first deviation rectifying mechanism, a second deviation rectifying mechanism, an active tensioning mechanism, and a passive tensioning mechanism. One end of the cutting mechanism is provided with the first deviation rectifying mechanism, one end of the first deviation rectifying mechanism is provided with the second deviation rectifying mechanism, one side of the second deviation rectifying mechanism is provided with the active tensioning mechanism, and the passive tensioning mechanism is arranged above the active tensioning mechanism. By setting that the surface of the correction block in contact with the strip is a smooth curved surface, it can be more closely contacted with the inclined strip. The first spring in the round block will drive the correction block to rebound to preliminarily correct the strip. While the correction block moves outwards, it will drive the runner to slide inwards to further correct the strip. When the strip becomes loose, the contact ring will expand outwards to have a preliminary tensioning effect on the strip. While the contact ring moves outwards, it will drive the rotating cylinder to move downwards, and the downward movement of the rotating cylinder will thus tension the strip.

Description

Technical Field

[0001] The present invention relates to the technical field of slitting machines, and specifically relates to a high-precision strip slitting machine. Background Art

[0002] The strip is a steel strip with a width of 600 mm. A slitting machine is a mechanical device that slits wide-width paper, mica tape or film into multiple narrow-width materials, and is commonly used in papermaking machinery, wire and cable mica tape, and printing and packaging machinery. The main applications of the slitting machine are: non-woven fabrics; slitting of mica tape, paper, insulating materials and various film materials, and is particularly suitable for slitting narrow strips (non-woven fabrics, paper, insulating materials, mica tape, film, etc.).

[0003] During the process of conveying and slitting the existing strip slitting machine, the strip is prone to deviation. The deviation of the strip during the slitting process will cause the product quality to decline, and some strips with low precision will be wasted, resulting in a large number of defective products and certain economic losses. When the existing slitting machine slits the strip for a long time, the strip will become loose and wrinkled. This is mainly due to the incorrect winding tension, and it is necessary to adjust the appropriate winding tension to tighten the strip. Therefore, the present invention designs a high-precision strip slitting machine to solve the above problems. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a high-precision strip slitting machine.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a high-precision strip slitting machine, including a cutting mechanism, a first deviation rectifying mechanism, a second deviation rectifying mechanism, an active tensioning mechanism, and a passive tensioning mechanism. One end of the cutting mechanism is provided with a first deviation rectifying mechanism, one end of the first deviation rectifying mechanism is provided with a second deviation rectifying mechanism, one side of the second deviation rectifying mechanism is provided with an active tensioning mechanism, and the upper end of the active tensioning mechanism is provided with a passive tensioning mechanism.

[0006] Preferably, the cutting mechanism includes a bracket, a support body is fixedly connected to the upper end of the bracket, a support table is fixedly connected to the side wall of the bracket, a first motor is fixedly connected to the upper end of the support table, a first rotating shaft is fixedly connected to one end of the first motor, a first roller is fixedly connected to the side wall of the first rotating shaft, a strip is closely attached to the side wall of the first roller, and a second rotating shaft is rotatably connected to the side wall of the bracket.

[0007] Preferably, the cutting mechanism further includes a second roller, a second roller is fixedly connected to one end of the second rotating shaft, a second motor is rotatably connected to the side wall of the bracket, a third rotating shaft is fixedly connected to one end of the second motor, and a blade is fixedly connected to the side wall of the third rotating shaft.

[0008] Preferably, the first rectifying mechanism includes a first rotating rod, one end of the first rotating rod is rotatably connected to the bracket, a third roller is fixedly connected to one end of the first rotating rod, a round block is fixedly connected to the side wall of the third roller, and a rectifying block is slidably connected to the outside of the third roller.

[0009] Preferably, the second rectifying mechanism includes a first sliding rod, the side wall of the first sliding rod is slidably connected to the round block, a first stop block is fixedly connected to the side wall of the first sliding rod, a first spring is fixedly connected to one end of the first stop block, a curved surface block is fixedly connected to one end of the first sliding rod, a first rotating pin is attached to one end of the curved surface block, and a second sliding rod is rotatably connected to one end of the first rotating pin.

[0010] Preferably, the second rectifying mechanism further includes a first sleeve, the side wall of the second sliding rod is slidably connected to the first sleeve, a housing is fixedly connected to the side wall of the first sleeve, one end of the housing is fixedly connected to the bracket, an inclined slider is fixedly connected to the side wall of the second sliding rod, a rotating pin is attached to one end of the inclined slider, a first sliding block is rotatably connected to one end of the rotating pin, the side wall of the first sliding block is slidably connected to the housing, a rotating wheel is rotatably connected to one end of the first sliding block, a second spring is fixedly connected to one end of the first sliding block, and one end of the second spring is fixedly connected to the housing.

[0011] Preferably, the active tensioning mechanism includes a support block, one end of the support block is fixedly connected to the bracket, a second sliding block is slidably connected to the inside of the support block, a second rotating rod is rotatably connected to the side wall of the second sliding block, a third sliding block is slidably connected to one end of the second rotating rod, a rotating cylinder is slidably connected to the outer side wall of the third sliding block, one end of the rotating cylinder is fixedly connected to the second rotating rod, and a second sleeve is fixedly connected to the inner side wall of the rotating cylinder.

[0012] Preferably, the active tensioning mechanism further includes a third sliding rod, the third sliding rod is slidably connected to the inside of the second sleeve, a contact ring is fixedly connected to one end of the third sliding rod, a guiding block is fixedly connected to the inner side wall of the third sliding block, a second rotating pin is rotatably connected to one end of the third sliding rod, the side wall of the second rotating pin is slidably connected to the guiding block, a second stop block is fixedly connected to the side wall of the third sliding rod, a third spring is fixedly connected to one end of the second stop block, and a first side gear is fixedly connected to one end of the third sliding block.

[0013] Preferably, the passive tensioning mechanism includes a first rotating wheel, the middle of the first rotating wheel is fixedly connected to the third rotating shaft, a belt is closely attached to the side wall of the first rotating wheel, and a second rotating wheel is closely attached to one end of the belt.

[0014] Preferably, the passive tensioning mechanism further includes a bearing, the side wall of the second rotating wheel is fixedly connected to the bearing, and the inner ring of the bearing is fixedly connected to the second sliding block.

[0015] Preferably, the passive tensioning mechanism further includes a second side gear. The second side gear is fixedly connected to the side wall of the second rotating wheel. One end of the second rotating rod is fixedly connected to a spur gear. The spur gear is meshed with a rack on its side wall. One end of the rack is fixedly connected to a support block.

[0016] Advantages of the present invention:

[0017] (1) For the high-precision strip cutting machine of the present invention, the surface of the correction block in contact with the strip is a smooth curved surface, so that the correction block can be more closely in contact with the inclined strip, avoiding large wear and damage when the strip shifts.

[0018] (2) For the high-precision strip cutting machine of the present invention, when the first sliding rod moves outwards, it further drives the rotating wheel to slide inwards to further correct the strip, avoiding subsequent strip deviation.

[0019] (3) For the high-precision strip cutting machine of the present invention, when the strip becomes loose, at this time the third spring drives the contact ring to move outwards. The outward movement of the contact ring will expand outwards to have a preliminary tensioning effect on the strip. When the third rotating shaft rotates, it further drives the spur gear to rotate on the rack, which will drive the rotating cylinder to move downwards, and the downward movement of the rotating cylinder will further tension the strip. Description of the drawings

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 It is the overall structure schematic diagram provided by the present invention;

[0022] Figure 2 is Figure 1 The connection structure schematic diagram of the first rotating shaft and the first roller shown;

[0023] Figure 3 is Figure 1 The connection structure schematic diagram of the first rotating rod and the third roller shown;

[0024] Figure 4 is Figure 1 The curved surface block structure schematic diagram shown;

[0025] Figure 5 is Figure 3 The connection structure schematic diagram of the first sliding rod and the first stop block shown;

[0026] Figure 6 is Figure 4 The enlarged schematic diagram of part A shown

[0027] Figure 7For Figure 1 Schematic diagram of the contact ring structure shown;

[0028] Figure 8 For Figure 7 Schematic diagram of the connection structure between the third sliding block and the rotating cylinder shown;

[0029] Figure 9 For Figure 8 Schematic diagram of the connection structure between the third sliding rod and the second stop block shown;

[0030] Figure 10 For Figure 8 Schematic diagram of the guide block structure shown;

[0031] Figure 11 For Figure 7 Schematic diagram of the connection structure between the spur gear and the rack shown.

[0032] In the figure: 1. Cutting mechanism; 11. Bracket; 12. Support body; 13. Support table; 14. First motor; 15. First rotating shaft; 16. First roller; 17. Strip; 18. Second rotating shaft; 19. Second roller; 110. Second motor; 111. Third rotating shaft; 112. Blade; 2. First deviation correction mechanism; 21. First rotating rod; 22. Third roller; 23. Round block; 24. Correction block; 3. Second deviation correction mechanism; 31. First sliding rod; 32. First stop block; 33. First spring; 34. Curved surface block; 35. First rotating pin; 36. Second sliding rod; 37. First sleeve; 38. Inclined sliding block; 39. Rotating pin; 310. First sliding block; 311. Housing; 312. Runner; 313. Second spring; 4. Active tensioning mechanism; 41. Support block; 42. Second sliding block; 43. Second rotating rod; 44. Third sliding block; 45. Rotating cylinder; 46. Second sleeve; 47. Third sliding rod; 48. Contact ring; 49. Second rotating pin; 410. Guide block; 411. Second stop block; 412. Third spring; 413. First side gear; 51. First rotating wheel; 52. Belt; 53. Second rotating wheel; 54. Bearing; 55. Second side gear; 56. Spur gear; 57. Rack. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] As Figures 1-11As shown in the figure, a high-precision strip slitting machine according to the present invention includes a cutting mechanism 1, a first deviation rectifying mechanism 2, a second deviation rectifying mechanism 3, an active tensioning mechanism 4, and a passive tensioning mechanism. One end of the cutting mechanism 1 is provided with the first deviation rectifying mechanism 2, one end of the first deviation rectifying mechanism 2 is provided with the second deviation rectifying mechanism 3, one side of the second deviation rectifying mechanism 3 is provided with the active tensioning mechanism 4, and the passive tensioning mechanism is arranged above the active tensioning mechanism 4. By setting that the surface of the correction block 24 in contact with the strip 17 is a smooth curved surface, it can be more closely contacted with the inclined strip 17. The first spring 33 in the round block 23 will drive the correction block 24 to rebound to preliminarily correct the strip 17. When the correction block 24 moves outward, it will drive the runner 312 to slide inward to further correct the strip 17. When the strip 17 becomes loose, the contact ring 48 will expand outward to have a preliminary tensioning effect on the strip. When the contact ring 48 moves outward, it will drive the rotating cylinder 45 to move downward, and the downward movement of the rotating cylinder 45 will thus tension the strip 17.

[0035] Preferably, the cutting mechanism 1 includes a bracket 11, a support body 12 is fixedly connected to the upper end of the bracket 11, a support table 13 is fixedly connected to the side wall of the bracket 11, a first motor 14 is fixedly connected to the upper end of the support table 13, a first rotating shaft 15 is fixedly connected to one end of the first motor 14, a first roller 16 is fixedly connected to the side wall of the first rotating shaft 15, the strip 17 is closely attached to the side wall of the first roller 16, a second rotating shaft 18 is rotatably connected to the side wall of the bracket 11, a second roller 19 is fixedly connected to one end of the second rotating shaft 18, a second motor 110 is rotatably connected to the side wall of the bracket 11, a third rotating shaft 111 is fixedly connected to one end of the second motor 110, and a blade 112 is fixedly connected to the side wall of the third rotating shaft 111. Starting the first motor 14 to rotate drives the first rotating shaft 15 to rotate, the rotation of the first rotating shaft 15 drives the first roller 16 to rotate, and the rotation of the first roller 16 winds up the strip 17. Starting the second motor 110 drives the third rotating shaft 111 to rotate, the rotation of the third rotating shaft 111 drives the blade 112 to rotate, and the rotation of multiple groups of blades 112 slits the strip 17.

[0036] Preferably, the first deviation rectifying mechanism 2 includes a first rotating rod 21. One end of the first rotating rod 21 is rotatably connected to the bracket 11. A third roller 22 is fixedly connected to one end of the first rotating rod 21. A round block 23 is fixedly connected to the side wall of the third roller 22. A rectifying block 24 is slidably connected to the outside of the third roller 22. When the strip 1717 is deflected when passing through the third roller 22, it will drive the rectifying block 24 to move outward. The surface of the rectifying block 24 in contact with the strip 17 is a smooth curved surface, so that the rectifying block 24 can more closely contact the inclined strip 17, avoiding large wear and damage when the strip 17 is deflected. The rectifying block 24 moving outward drives the first sliding rod 31 to move outward. The first sliding rod 31 moving outward drives the first stopper 32 to move outward. The first stopper 32 moving outward compresses the first spring 33. The first spring 33 in the round block 23 drives the rectifying block 24 to rebound to preliminarily rectify the strip 17.

[0037] Preferably, the second deviation rectifying mechanism 3 includes a first sliding rod 31. The side wall of the first sliding rod 31 is slidably connected to the round block 23. A first stopper 32 is fixedly connected to the side wall of the first sliding rod 31. A first spring 33 is fixedly connected to one end of the first stopper 32. A curved surface block 34 is fixedly connected to one end of the first sliding rod 31. A first rotating pin 35 is attached to one end of the curved surface block 34. One end of the first rotating pin 35 is rotatably connected to a second sliding rod 36. A first sleeve 37 is slidably connected to the side wall of the second sliding rod 36. A housing 311 is fixedly connected to the side wall of the first sleeve 37. One end of the housing 311 is fixedly connected to the bracket 11. An inclined slider 38 is fixedly connected to the side wall of the second sliding rod 36. A rotating pin 39 is attached to one end of the inclined slider 38. One end of the rotating pin 39 is rotatably connected to a first sliding block 310. The side wall of the first sliding block 310 is slidably connected to the housing 311. A runner 312 is rotatably connected to one end of the first sliding block 310. A second spring 313 is fixedly connected to one end of the first sliding block 310. One end of the second spring 313 is fixedly connected to the housing 311. When the first sliding rod 31 moves outward, it will drive the curved surface block 34 to move outward. The curved surface block 34 moving outward drives the first rotating pin 35 to slide. The first rotating pin 35 sliding drives the second sliding rod 36 to slide. The second sliding rod 36 sliding drives the inclined slider 38 to slide. The inclined slider 38 sliding drives the rotating pin 39 to slide inward. The rotating pin 39 sliding inward drives the first sliding block 310 to slide inward. The first sliding block 310 sliding inward drives the runner 312 to slide inward. The runner 312 sliding inward further rectifies the strip 17 to prevent subsequent deflection of the strip 17.

[0038] Preferably, the active tensioning mechanism 4 includes a support block 41. One end of the support block 41 is fixedly connected to the bracket 11. A second sliding block 42 is slidably connected inside the support block 41. A second rotating rod 43 is rotatably connected to the side wall of the second sliding block 42. One end of the second rotating rod 43 is slidably connected to a third sliding block 44. A rotating cylinder 45 is slidably connected to the outer side wall of the third sliding block 44. One end side wall of the rotating cylinder 45 is fixedly connected to the second rotating rod 43. A second sleeve 46 is fixedly connected to the inner side wall of the rotating cylinder 45. A third sliding rod 47 is slidably connected inside the second sleeve 46. One end of the third sliding rod 47 is fixedly connected to a contact ring 48. A guide block 410 is fixedly connected to the inner side wall of the third sliding block 44. One end of the third sliding rod 47 is rotatably connected to a second rotating pin 49. The side wall of the second rotating pin 49 is slidably connected to the guide block 410. A second stop block 411 is fixedly connected to the side wall of the third sliding rod 47. One end of the second stop block 411 is fixedly connected to a third spring 412. A first side gear 413 is fixedly connected to one end of the third sliding block 44. When the strip 1717 becomes loose, at this time the third spring 412 will drive the second stop block 411 to move outwards. The outward movement of the second stop block 411 drives the third sliding rod 47 to move outwards. The outward movement of the third sliding rod 47 drives the contact ring 48 to move outwards. The outward movement of the contact ring 48 will expand outwards to have a preliminary tensioning effect on the strip 17. While the third sliding rod 47 moves outwards, it drives the second rotating pin 49 to move outwards. The outward movement of the second rotating pin 49 drives the guide block 410 to move towards one end. The movement of the guide block 410 towards one end drives the third sliding block 44 to move towards one end. The movement of the third sliding block 44 towards one end drives the first side gear 413 to mesh with the second side gear 55. The damping of the second sliding block 42 sliding inside the support block 41 is relatively large. In this way, applying an external force to drive the second sliding block 42 to slide to any position of the support block 41 can make it stop.

[0039] Preferably, the passive tensioning mechanism includes a first rotating wheel 51. The middle of the first rotating wheel 51 is fixedly connected to a third rotating shaft 111. A belt 52 is closely attached to the side wall of the first rotating wheel 51. One end of the belt 52 is closely attached to a second rotating wheel 53. A bearing 54 is fixedly connected to the side wall of the second rotating wheel 53. The inner ring of the bearing 54 is fixedly connected to a second sliding block 42. A second side gear 55 is fixedly connected to the side wall of the second rotating wheel 53. A spur gear 56 is fixedly connected to one end of the second rotating rod 43. A rack 57 is meshed with the side wall of the spur gear 56. One end of the rack 57 is fixedly connected to a support block 41; while the third rotating shaft 111 rotates, it drives the first rotating wheel 51 to rotate. The rotation of the first rotating wheel 51 drives the belt 52 to rotate. The rotation of the belt 52 drives the second rotating wheel 53 to rotate. The rotation of the second rotating wheel 53 drives the second side gear 55 to rotate. The rotation of the second side gear 55 drives the first side gear 513 to rotate. The rotation of the first side gear 513 drives the second rotating rod 43 to rotate. The rotation of the second rotating rod 43 drives the spur gear 56 to rotate. The rotation of the spur gear 56 meshes with the rack 57. The rotation of the spur gear 56 on the rack 57 will drive the rotating cylinder 45 to move downward. The downward movement of the rotating cylinder 45 will further tension the strip 17. In this way, the tension of the strip 17 will drive the contact ring 48 to reset inward. The inward reset of the contact ring 48 will drive the third sliding block 44 to reset. The reset of the third sliding block 44 drives the first side gear 413 away from the second side gear 55.

[0040] Working principle: When the present invention is in use, first place the strip 17 in the equipment, start the first motor 14 to rotate. The rotation of the first motor 14 drives the first rotating shaft 15 to rotate. The rotation of the first rotating shaft 15 drives the first roller 16 to rotate. The first roller 16 rotates to wind up the strip 17. Start the second motor 110 to drive the third rotating shaft 111 to rotate. The rotation of the third rotating shaft 111 drives the blade 112 to rotate. The rotation of multiple groups of blades 112 cuts the strip 17.

[0041] When the strip 17 deflects when passing through the third roller 22, it will drive the correction block 24 to move outward. The surface of the correction block 24 in contact with the strip 17 is a smooth curved surface. In this way, the correction block 24 can more closely contact the inclined strip 17, avoiding large wear and damage when the strip 17 deflects. The outward movement of the correction block 24 drives the first sliding rod 31 to move outward. The outward movement of the first sliding rod 31 drives the first stop block 32 to move outward. The outward movement of the first stop block 32 compresses the first spring 33. The first spring 33 in the round block 23 will drive the correction block 24 to rebound to preliminarily correct the strip 17.

[0042] While the first sliding rod 31 moves outward, it drives the curved surface block 34 to move outward. The outward movement of the curved surface block 34 drives the first rotating pin 35 to slide. The sliding of the first rotating pin 35 drives the second sliding rod 36 to slide. The sliding of the second sliding rod 36 drives the inclined slider 38 to slide. The sliding of the inclined slider 38 drives the rotating pin 39 to slide inward. The inward sliding of the rotating pin 39 drives the first sliding block 310 to slide inward. The inward sliding of the first sliding block 310 drives the runner 312 to slide inward. The inward sliding of the runner 312 further corrects the strip 17 to prevent the subsequent strip 17 from deviating.

[0043] When the strip 17 becomes loose, the third spring 412 drives the second stop block 411 to move outward at this time. The outward movement of the second stop block 411 drives the third sliding rod 47 to move outward. The outward movement of the third sliding rod 47 drives the contact ring 48 to move outward. The outward movement of the contact ring 48 will expand outward to have a preliminary tensioning effect on the strip 17. While the third sliding rod 47 moves outward, it drives the second rotating pin 49 to move outward. The outward movement of the second rotating pin 49 drives the guide block 410 to move towards one end. The movement of the guide block 410 towards one end drives the third sliding block 44 to move towards one end. The movement of the third sliding block 44 towards one end drives the first side gear 413 to mesh with the second side gear 55. The damping of the second sliding block 42 sliding in the support block 41 is relatively large, so that applying an external force to drive the second sliding block 42 to slide to any position in the support block 41 can make it stop.

[0044] While the third rotating shaft 111 rotates, it drives the first rotating wheel 51 to rotate. The rotation of the first rotating wheel 51 drives the belt 52 to rotate. The rotation of the belt 52 drives the second rotating wheel 53 to rotate. The rotation of the second rotating wheel 53 drives the second side gear 55 to rotate. The rotation of the second side gear 55 drives the first side gear 513 to rotate. The rotation of the first side gear 513 drives the second rotating rod 43 to rotate. The rotation of the second rotating rod 43 drives the straight gear 56 to rotate. The rotation of the straight gear 56 meshes with the rack 57. The rotation of the straight gear 56 on the rack 57 drives the drum 45 to move downward. The downward movement of the drum 45 further tensions the strip 17. In this way, the tensioning of the strip 17 drives the contact ring 48 to reset inward. The inward reset of the contact ring 48 drives the third sliding block 44 to reset. The reset of the third sliding block 44 drives the first side gear 413 away from the second side gear 55.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A high-precision strip slitter, characterized in that: It includes a cutting mechanism (1), a first deviation rectifying mechanism (2), a second deviation rectifying mechanism (3), an active tensioning mechanism (4), and a passive tensioning mechanism. One end of the cutting mechanism (1) is provided with the first deviation rectifying mechanism (2), one end of the first deviation rectifying mechanism (2) is provided with the second deviation rectifying mechanism (3), one side of the second deviation rectifying mechanism (3) is provided with the active tensioning mechanism (4), and the passive tensioning mechanism is arranged above the active tensioning mechanism (4). The cutting mechanism (1) includes a bracket (11). A support body (12) is fixedly connected to the upper end of the bracket (11). A support platform (13) is fixedly connected to the side wall of the bracket (11). A first motor (14) is fixedly connected to the upper end of the support platform (13). A first rotating shaft (15) is fixedly connected to one end of the first motor (14). A first roller (16) is fixedly connected to the side wall of the first rotating shaft (15). A strip (17) is closely attached to the side wall of the first roller (16). A second rotating shaft (18) is rotatably connected to the side wall of the bracket (11). The first deviation rectifying mechanism (2) includes a first rotating rod (21). One end of the first rotating rod (21) is rotatably connected to the bracket (11). A third roller (22) is fixedly connected to one end of the first rotating rod (21). A round block (23) is fixedly connected to the side wall of the third roller (22). A rectifying block (24) is slidably connected to the outside of the third roller (22). The second deviation rectifying mechanism (3) includes a first sliding rod (31). The side wall of the first sliding rod (31) is slidably connected to the round block (23). A first stop block (32) is fixedly connected to the side wall of the first sliding rod (31). A first spring (33) is fixedly connected to one end of the first stop block (32). One end of the first sliding rod (31) is fixedly connected to a curved surface block (34). A first rotating pin (35) is attached to one end of the curved surface block (34). A second sliding rod (36) is rotatably connected to one end of the first rotating pin (35). The second deviation rectifying mechanism (3) further includes a first sleeve (37). The side wall of the second sliding rod (36) is slidably connected to the first sleeve (37). A housing (311) is fixedly connected to the side wall of the first sleeve (37). One end of the housing (311) is fixedly connected to the bracket (11). An inclined slider (38) is fixedly connected to the side wall of the second sliding rod (36). A rotating pin (39) is attached to one end of the inclined slider (38). A first sliding block (310) is rotatably connected to one end of the rotating pin (39). The side wall of the first sliding block (310) is slidably connected to the housing (311). A runner (312) is rotatably connected to one end of the first sliding block (310). A second spring (313) is fixedly connected to one end of the first sliding block (310). One end of the second spring (313) is fixedly connected to the housing (311).

2. The high-precision strip slitter according to claim 1, wherein: The cutting mechanism (1) further includes a second roller (19). One end of the second rotating shaft (18) is fixedly connected to the second roller (19). A second motor (110) is rotatably connected to the side wall of the bracket (11). One end of the second motor (110) is fixedly connected to a third rotating shaft (111). A blade (112) is fixedly connected to the side wall of the third rotating shaft (111).

3. A high-precision strip slitter according to claim 1, characterized in that: The active tensioning mechanism (4) includes a support block (41). One end of the support block (41) is fixedly connected to the bracket (11). A second sliding block (42) is slidably connected inside the support block (41). A second rotating rod (43) is rotatably connected to the side wall of the second sliding block (42). One end of the second rotating rod (43) is slidably connected to a third sliding block (44). A rotating cylinder (45) is slidably connected to the outer side wall of the third sliding block (44). One end of the side wall of the rotating cylinder (45) is fixedly connected to the second rotating rod (43). A second sleeve (46) is fixedly connected to the inner side wall of the rotating cylinder (45).

4. The high-precision strip slitter according to claim 3, wherein: The active tensioning mechanism (4) further includes a third sliding rod (47). The third sliding rod (47) is slidably connected inside the second sleeve (46). One end of the third sliding rod (47) is fixedly connected to a contact ring (48). A guiding block (410) is fixedly connected to the inner side wall of the third sliding block (44). One end of the third sliding rod (47) is rotatably connected to a second rotating pin (49). The side wall of the second rotating pin (49) is slidably connected to the guiding block (410). A second stop block (411) is fixedly connected to the side wall of the third sliding rod (47). One end of the second stop block (411) is fixedly connected to a third spring (412). A first side gear (413) is fixedly connected to one end of the third sliding block (44).

5. A high-precision strip slitter according to claim 4, characterized in that: The passive tensioning mechanism includes a first rotating wheel (51). The middle of the first rotating wheel (51) is fixedly connected to the third rotating shaft (111). A belt (52) is closely attached to the side wall of the first rotating wheel (51). One end of the belt (52) is closely attached to a second rotating wheel (53).

6. The high-precision strip slitter according to claim 5, wherein: The passive tensioning mechanism further includes a bearing (54). The bearing (54) is fixedly connected to the side wall of the second rotating wheel (53). The inner ring of the bearing (54) is fixedly connected to the second sliding block (42).

7. The high-precision strip slitter according to claim 6, characterized in that: The passive tensioning mechanism further includes a second side gear (55). The second side gear (55) is fixedly connected to the side wall of the second rotating wheel (53). A spur gear (56) is fixedly connected to one end of the second rotating rod (43). A rack (57) is meshed with the side wall of the spur gear (56). One end of the rack (57) is fixedly connected to the support block (41).

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