A steel strip slitting machine

Abstract

This utility model discloses a steel strip slitting machine, belonging to the field of steel strip slitting technology. It includes two cutter rollers, both rotatably mounted on a frame. The frame is equipped with a spacing adjustment mechanism for adjusting the distance between the two cutter rollers. Multiple cutter discs are also included, each disc comprising a disc body and annular cutters fixed to the disc body. The disc body is fixedly fitted onto the cutter rollers via a limiting mechanism. This utility model features two parallel cutter rollers mounted on the frame, both rotatable, with multiple cutter discs installed on them. When the cold-rolled steel strip unfolds and passes between the two cutter rollers, the annular cutters on the upper and lower rollers cooperate to shear the steel strip, thereby dividing the wider steel strip into multiple narrower steel strips. The limiting mechanism allows for easy adjustment of the cutter disc position by loosening the studs, moving the disc body to the appropriate position, and then tightening the studs again, facilitating changes in the cutter disc position according to the desired slitting quantity and spacing.

Description

Technical Field

[0001] This utility model relates to the field of steel strip slitting technology, specifically to a steel strip slitting machine. Background Technology

[0002] In the steel processing industry, slitting cold-rolled steel strip is a crucial process. The function of a steel strip slitting machine is to cut wider cold-rolled steel strips into multiple narrower strips to meet the needs of different users. Traditional steel strip slitting machines have a relatively simple structure, typically using cutter rollers and cutter heads with a fixed spacing. This type of slitting machine has significant limitations when dealing with cold-rolled steel strips of varying thicknesses. Because the roller spacing cannot be adjusted, when slitting thicker steel strips, the cutter head may excessively compress the strip, causing deformation and severely affecting product quality. Furthermore, the cutter head installation method in traditional slitting machines is relatively fixed, usually using multiple washers to separate the cutter heads and adjust the spacing. This makes it difficult to flexibly adjust the cutter head position according to actual needs, often requiring significant time and manpower for reinstallation and adjustment, which not only reduces production efficiency but also increases production costs. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a steel strip slitting machine that, by setting a spacing adjustment mechanism and a limiting mechanism, facilitates the adjustment of the position of the cutter head and the spacing of the cutter rollers.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a steel strip slitting machine, comprising:

[0005] Two cutter rollers are rotatably mounted on the frame and are parallel to each other. The frame is provided with a spacing adjustment mechanism for adjusting the distance between the two cutter rollers.

[0006] Multiple cutter discs, each cutter disc comprising a disc body and an annular cutter fixed on the disc body, wherein the axis of the disc body, the annular cutter and the cutter roller are collinear, and the disc body is fixedly sleeved on the cutter roller by a limiting mechanism.

[0007] Preferably, the spacing adjustment mechanism includes:

[0008] A movable seat, on which one end of a cutter roller is rotatably mounted;

[0009] Two parallel guide posts are fixedly mounted on the frame and pass through the movable seat;

[0010] A threaded rod, which is fixed to a movable seat;

[0011] A rotating sleeve is rotatably mounted on the frame and threadedly engaged with the threaded rod.

[0012] Preferably, a motor is fixed on the frame, a gear is fixed on the rotating sleeve, and a gear two that meshes with the gear one is fixed on the output shaft of the motor.

[0013] Preferably, the disc body has a through hole, and a plurality of protruding keys are provided in the through hole, and the cutter roller has a plurality of keyways that cooperate with the protruding keys.

[0014] Preferably, the limiting mechanism includes two abutments symmetrically hinged to both sides of the end of the convex key. A sliding groove is provided in the convex key, and a limiting block is slidably installed in the sliding groove. When the limiting block moves toward the keyway, the limiting block presses the two abutments against the inner wall of the keyway.

[0015] Preferably, the keyway has inner grooves on both sides of its inner wall, and the abutment block rests in the inner grooves.

[0016] Preferably, the limiting block has a wedge-shaped portion at one end near the keyway, and the two abutments have a protruding ridge fixed on one side near the wedge-shaped portion, with the wedge-shaped portion abutting against the protruding ridge.

[0017] Preferably, a stud is threaded onto the disc body, and a push block is sleeved on the stud. When the push block pushes against the end of the limiting block away from the keyway, the limiting block moves toward the keyway.

[0018] Preferably, a second motor is provided on the side of the frame, the output shaft of the second motor is disposed in a transmission box, the transmission box is provided with two driven shafts, the driven shafts are driven by a gear set, and the two cutter rollers are respectively connected to the two driven shafts by universal couplings.

[0019] Preferably, a feed roller group and a discharge roller group are rotatably mounted at the front and rear ends of the frame, respectively. The feed roller group and the discharge roller group are used to guide the cold-rolled steel strip into and out of the slitting machine. Both the feed roller group and the discharge roller group include multiple parallel rollers.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention features two parallel cutter rollers mounted on a frame. These rollers are rotatable and equipped with multiple cutter discs. When the cold-rolled steel strip unfolds and passes between the two rollers, the annular cutters on the upper and lower rollers work together to shear the strip, dividing a wider strip into multiple narrower strips. A spacing adjustment mechanism allows the distance between the upper and lower rollers to be adjusted to a suitable size based on the strip thickness, preventing the annular cutters from deforming the strip during shearing. The limiting mechanism includes a stop block and a limiting block. Rotating the stud drives the push block down to press the limiting block, causing the limiting block to push the two stop blocks against the inner groove wall of the keyway, thus firmly fixing the disc onto the cutter roller. When adjusting the cutter disc position, simply loosen the stud, move the disc to the desired position, and then tighten the stud again. This allows for easy adjustment of the cutter disc position according to the desired number and spacing of strips. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a steel strip slitting machine provided for an embodiment of the present utility model.

[0024] Figure 2 This is a front view of the present invention.

[0025] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0026] Figure 4 This is a side view of the present invention.

[0027] Figure 5 This is a top view of the cutter roller and cutter disc of this utility model.

[0028] Figure 6 for Figure 5 A partial sectional view at point AA.

[0029] Figure 7 This is a side view of the cutter roller and cutter disc of this utility model.

[0030] Figure 8 for Figure 7 A magnified view of a section at point B.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Cutter roller, 2. Frame, 3. Cutter disc, 4. Disc body, 5. Ring cutter, 6. Movable seat, 7. Guide column, 8. Threaded rod, 9. Rotary sleeve, 10. Motor 1, 11. Gear 1, 12. Internal convex key, 13. Keyway, 14. Abutment block, 15. Slide groove, 16. Limiting block, 17. Internal groove, 18. Wedge-shaped part, 19. Protruding ridge, 20. Stud, 21. Push block, 22. Motor 2, 23. Transmission box, 24. Universal coupling, 25. Feed roller assembly, 26. Discharge roller assembly. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] like Figures 1 to 8 As shown, Embodiment 1 of this utility model provides a steel strip slitting machine, comprising two parallel cutter rollers 1 arranged vertically, both of which are rotatably mounted on a frame 2. Feed roller group 25 and discharge roller group 26 are respectively provided at the front and rear ends of the frame 2. Both the feed roller group 25 and the discharge roller group 26 are composed of multiple parallel rollers, whose function is to guide the cold-rolled steel strip into and out of the slitting machine.

[0036] After the cold-rolled steel strip is unrolled, it first enters the slitting machine through the feed roller assembly 25. Multiple rollers in the feed roller assembly 25 work together to ensure the steel strip moves smoothly and steadily towards the cutter rollers 1. Two cutter rollers 1 are equipped with the same number of cutter discs 3. Each cutter disc 3 consists of a disc body 4 and annular cutters 5 fixed to the disc body 4. The disc body 4, the annular cutters 5, and the cutter roller 1 are collinear, ensuring that the annular cutters 5 rotate smoothly when the cutter roller 1 rotates. The disc body 4 is fitted onto the cutter roller 1 and fixed by a limiting mechanism. When the steel strip passes between the two cutter rollers 1, the annular cutters 5 on the upper and lower cutter rollers 1 cooperate to shear the steel strip, thus dividing the wider steel strip into multiple narrower steel strips. The slittinged steel strip then exits the slitting machine through the discharge roller assembly 26.

[0037] In practice, different cold-rolled steel strips may have different thicknesses. To prevent the annular blade 5 from excessively compressing the steel strip during the shearing process, which could deform the sheared edge, the distance between the upper and lower blade rollers 1 needs to be adjusted according to the steel strip thickness. The distance adjustment mechanism provided in this invention can effectively solve this problem.

[0038] like Figure 1As shown, in order to maintain the parallelism of the two cutter rollers 1 when adjusting the spacing of the cutter rollers 1, this utility model provides two spacing adjustment mechanisms on both sides of the frame 2, which are used to adjust the spacing between the two ends of the upper cutter roller 1 and the lower cutter roller 1, respectively. Each spacing adjustment mechanism includes a movable seat 6, two parallel guide columns 7, a threaded rod 8, and a rotating sleeve 9. One end of the upper cutter roller 1 is rotatably mounted on the movable seat 6. The two guide columns 7 are fixedly mounted on the frame 2 and pass through the movable seat 6. The function of the guide columns 7 is to provide guidance for the movement of the movable seat 6, ensuring that the movable seat 6 can only move smoothly along the direction of the guide columns 7. The threaded rod 8 is fixed on the movable seat 6 and parallel to the guide columns 7. The rotating sleeve 9 is rotatably mounted on the frame 2 through a bearing, and the rotating sleeve 9 is threadedly engaged with the threaded rod 8. With the above configuration, rotating the rotating sleeve 9 will drive the threaded rod 8 to rise and fall, thereby moving the movable seat 6 on the guide columns 7.

[0039] To facilitate the rotation of the rotating sleeve 9, this invention includes two motors 10 fixed on the frame 2. Both motors 10 are servo motors and can rotate synchronously. A gear 11 is fixed on the rotating sleeve 9, and a gear 2 meshing with gear 11 is fixed on the output shaft of motor 10. When the spacing between the cutter rollers 1 needs to be adjusted, motor 10 is started, driving gear 2 to rotate. Since gear 2 meshes with gear 11, gear 11 rotates accordingly, thereby driving the rotating sleeve 9 to rotate. The rotating sleeve 9 is threadedly engaged with the threaded rod 8. The rotation of the rotating sleeve 9 causes the threaded rod 8 to move along the direction of the guide post 7, thereby moving the movable seat 6, ultimately achieving the adjustment of the spacing between the cutter rollers 1. In this way, the spacing between the upper and lower cutter rollers 1 can be adjusted to suit the thickness of the steel strip, ensuring the shearing quality.

[0040] Example 2:

[0041] Based on Embodiment 1, since the upper cutter roller 1 can move up and down, and the upper and lower cutter rollers 1 need to rotate in opposite directions, a second motor 22 is provided to drive the rotation of the two cutter rollers 1. The rotation of the cutter roller 1 is powered by the second motor 22 located on the side of the frame 2. The output shaft of the second motor 22 is located in the transmission box 23, which has two driven shafts. The driven shafts are driven by a gear set to the output shaft. The two driven shafts rotate in opposite directions, and the two cutter rollers 1 are respectively connected to the two driven shafts through universal couplings 24. This not only stably and efficiently transmits the power of the second motor 22 to the two cutter rollers 1, ensuring the normal rotation of the cutter rollers 1, but also compensates for changes in the distance between the cutter roller 1 and the driven shafts when the upper cutter roller 1 moves up and down within a small range through the universal couplings 24.

[0042] Example 3:

[0043] like Figures 5 to 8As shown, based on Embodiments 1 and 2, this invention provides a through hole in the disc 4 to facilitate fixing the disc 4 onto the cutter roller 1, allowing the disc 4 to be fitted onto the cutter roller 1. Three protruding keys 12 are provided on the inner wall of the through hole in the disc 4, and three keyways 13 that mate with the protruding keys 12 are provided on the cutter roller 1. The cooperation between the protruding keys 12 and the keyways 13 ensures that the disc 4 can be accurately fitted onto the cutter roller 1, and that the disc 4 can rotate synchronously when the cutter roller 1 rotates.

[0044] This invention features two symmetrically hinged abutment blocks 14 on both sides of the end of the inner convex key 12. A radially extending sliding groove 15 is formed within the inner convex key 12, and a limiting block 16 is slidably installed within the sliding groove 15. A stud 20 is threaded onto the disc body 4, with the axis of the stud 20 parallel to the axis of the disc body 4. A push block 21 is fitted onto the stud 20. The end of the push block 21 has a bevel. The limiting block 16 has a bevel that mates with the push block 21. When the stud 20 is rotated, the push block 21 moves toward the limiting block 16, which drives the limiting block 16 to move in the slide groove 15. This allows the wedge-shaped part 18 provided at one end of the limiting block 16 near the keyway 13 to press the protruding ridge 19 fixed on the side of the abutment block 14 near the wedge-shaped part 18. The wedge-shaped part 18 presses the protruding ridges 19 on both sides, spreading the two abutment blocks 14 apart, so that the two abutment blocks 14 respectively abut against the inner grooves 17 opened on the inner walls on both sides of the keyway 13, thereby firmly fixing the disc body 4 onto the cutter roller 1.

[0045] With the above settings, when the position of the cutter head 3 needs to be adjusted, simply loosen the stud 20. The push block 21 will no longer push against the limit block 16, which means the limit block 16 will no longer forcefully press against the abutment block 14. The abutment block 14 will then loosen from the groove wall of the inner groove 17, allowing the disc body 4 to move freely on the cutter roller 1. After moving the disc body 4 to the appropriate position, tighten the stud 20 again, causing the abutment block 14 to press against the groove wall of the inner groove 17 again, thus completing the adjustment of the cutter head 3 position. This allows for flexible changes in the position of the cutter head 3 according to the quantity and spacing of the slitting, improving the versatility and practicality of the slitting machine.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A steel strip slitting machine, characterized in that, include: Two cutter rollers are rotatably mounted on the frame and are parallel to each other. The frame is provided with a spacing adjustment mechanism for adjusting the distance between the two cutter rollers. Multiple cutter discs, each cutter disc comprising a disc body and an annular cutter fixed on the disc body, wherein the axis of the disc body, the annular cutter and the cutter roller are collinear, and the disc body is fixedly sleeved on the cutter roller by a limiting mechanism.

2. A steel strip slitting machine as described in claim 1, characterized in that, The spacing adjustment mechanism includes: A movable seat, on which one end of a cutter roller is rotatably mounted; Two parallel guide posts are fixedly mounted on the frame and pass through the movable seat; A threaded rod, which is fixed to a movable seat; A rotating sleeve is rotatably mounted on the frame and threadedly engaged with the threaded rod.

3. A steel strip slitting machine as described in claim 2, characterized in that, A motor is fixed on the frame, a gear is fixed on the rotating sleeve, and a gear two that meshes with the gear one is fixed on the output shaft of the motor.

4. A steel strip slitting machine as described in claim 1, characterized in that, The disc body has a through hole, and a plurality of protruding keys are provided in the through hole. The cutter roller has a plurality of keyways that cooperate with the protruding keys.

5. A steel strip slitting machine as described in claim 4, characterized in that, The limiting mechanism includes two symmetrically hinged abutments on both sides of the end of the convex key. A sliding groove is provided in the convex key, and a limiting block is slidably installed in the sliding groove. When the limiting block moves toward the keyway, the limiting block presses the two abutments against the inner wall of the keyway.

6. A steel strip slitting machine as described in claim 5, characterized in that, The keyway has inner grooves on both sides of its inner wall, and the abutment block rests in the inner groove.

7. A steel strip slitting machine as described in claim 5, characterized in that, The limiting block has a wedge-shaped part at one end near the keyway, and the two abutments have a protruding ridge fixed on one side near the wedge-shaped part, with the wedge-shaped part abutting against the protruding ridge.

8. A steel strip slitting machine as described in claim 5, characterized in that, A stud is threaded onto the disc body, and a push block is sleeved on the stud. When the push block pushes against the end of the limiting block away from the keyway, the limiting block moves toward the keyway.

9. A steel strip slitting machine as described in claim 1, characterized in that, A second motor is installed on the side of the frame. The output shaft of the second motor is installed in a transmission box. The transmission box has two driven shafts. The driven shafts are driven by a gear set. The two cutter rollers are respectively connected to the two driven shafts through universal couplings.

10. A steel strip slitting machine as described in claim 1, characterized in that, The front and rear ends of the frame are respectively rotatably mounted with a feed roller group and a discharge roller group. The feed roller group and the discharge roller group are used to guide the cold-rolled steel strip into and out of the slitting machine. Both the feed roller group and the discharge roller group include multiple parallel rollers.

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