Shearing head moving structure of a scrap shearing machine

Abstract

This utility model discloses a shear head moving structure for an edge trimmer, including a base. The base is rotatably mounted on a first rotating shaft, and the first rotating shaft is rotatably mounted on a second rotating shaft via a height adjustment mechanism. Locking mechanisms for fixing the movable ring and the annular shear head are provided between the first and second rotating shafts and a movable ring. This shear head moving structure of the edge trimmer features multiple sets of equally angled locking mechanisms. The large-area contact between the pressure plate and the rubber sheet creates a uniform clamping force, solving the problems of small fixing area and easy displacement due to vibration in traditional single-bolt fixing methods, significantly enhancing the stability of the connection between the movable ring and the rotating shaft. Simultaneously, a symmetrical anti-displacement mechanism is provided, which uses synchronously reversibly adjustable limit wheels to constrain both sides of the strip material, effectively preventing lateral displacement during conveying and ensuring shearing position accuracy.

Description

Technical Field

[0001] This utility model relates to the field of edge trimming machine technology, specifically to a shearing head moving structure for an edge trimming machine. Background Technology

[0002] Metal strips are prone to edge cracking during processing. To prevent the cracking from worsening, the cracked portions on both sides of the strip need to be trimmed to ensure a high yield. In existing edge trimming machines, the shearing head movement structure typically uses a movable ring fitted onto a rotating shaft, with the movable ring fixed in position by a single bolt. This fixing method results in a small contact area between the bolt and the rotating shaft, leading to uneven distribution of fixing force. This can cause the movable ring to shift due to vibration during shearing, affecting shearing accuracy and accelerating component wear. Furthermore, lateral shift of the strip during conveying can also cause shearing position deviations, further reducing finished product quality. Therefore, an innovative design based on the existing edge trimming machine shearing head movement structure is urgently needed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a moving structure for the shearing head of a shredder, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shearing head moving structure for a shredder, comprising a base, a first rotating shaft rotatably mounted on the base, a second rotating shaft rotatably mounted on the first rotating shaft via a height adjustment mechanism, and locking mechanisms for fixing the movable ring and the annular shearing head are provided between the first and second rotating shafts and a movable ring; the locking mechanism includes a pre-reserved groove and a bolt, the first and second rotating shafts having pre-reserved grooves, a rubber sheet fixed in the pre-reserved grooves, a pressure plate slidably mounted on the rubber sheet, a threaded hole in the movable ring, and the lower end of the bolt passing through the interior of the threaded hole and rotatably connected to the top center of the pressure plate, the bolt being threadedly connected to the threaded hole.

[0005] Preferably, the base is fixed with a first upright plate, the first upright plate is rotatably connected to a first rotating shaft, the first rotating shaft passes through the first upright plate and is fixedly connected to a first servo motor, and the first rotating shaft and the second rotating shaft are slidably connected to the movable ring.

[0006] Preferably, the locking mechanism further includes a groove, the movable ring has a groove, and a bolt is slidably disposed in the groove. The groove, threaded hole, reserved groove, rubber sheet, pressure plate and bolt are all distributed at equal angles about the central axis of the first rotating shaft and the second rotating shaft.

[0007] Preferably, the height adjustment mechanism includes a first through slot, the first upright plate has a first through slot, the first through slot has a second through slot, the first through slot is provided with a movable block, the movable block is connected to a second rotating shaft, the first upright plate is fixedly fixed with a cylinder, the cylinder is fixedly connected to the movable block, the movable block is fixed with a guide block, and the guide block is slidably connected to the second through slot.

[0008] Preferably, the base is provided with a conveying mechanism, the conveying mechanism includes a second upright plate, the base is fixed with the second upright plate, a third rotating shaft is rotatably installed between the second upright plates, the third rotating shaft passes through the interior of the second upright plate and is fixedly connected to a third servo motor, a fourth rotating shaft is provided between the second upright plates above the third rotating shaft through a height adjustment mechanism, the fourth rotating shaft and the second rotating shaft pass through the interior of the movable block and are fixedly connected to the second servo motor.

[0009] Preferably, an anti-deviation mechanism is provided on one side of the conveying mechanism. The anti-deviation mechanism includes a fixed plate, a fixed plate is fixed to the second upright plate, a fifth rotating shaft is rotatably installed between the fixed plates, a movable plate is threaded onto the fifth rotating shaft, a limit rod is provided above the movable plate on the fifth rotating shaft, the limit rod is fixedly connected to the fixed plate, the fifth rotating shaft passes through the fixed plate and is fixedly connected to the fourth servo motor, a baffle is fixed to the movable plate away from the fixed plate, and a limit wheel is rotatably installed between the baffles.

[0010] Preferably, both ends of the fifth rotating shaft are provided with opposite threads, the movable plate, the baffle and the limiting wheel are symmetrically distributed about the central axis of the fifth rotating shaft, the base is provided with a handheld controller, and the handheld controller is wirelessly connected to the first servo motor, the cylinder, the second servo motor, the third servo motor and the fourth servo motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The shearing head moving structure of the edge crusher is equipped with multiple sets of locking mechanisms distributed at equal angles. Through the large-area contact between the pressure plate and the rubber sheet, a uniform clamping force is formed, which solves the problem of small fixing area and easy deviation due to vibration in traditional single bolts, and significantly enhances the stability of the connection between the movable ring and the rotating shaft. At the same time, a symmetrical anti-deviation mechanism is provided, which forms a constraint on both sides of the strip material through the limit wheel that can be adjusted synchronously in the opposite direction, effectively preventing lateral deviation during the conveying process and ensuring the accuracy of the shearing position. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic cross-sectional view of the first rotating shaft of this utility model;

[0014] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0015] Figure 4 This is a schematic cross-sectional view of the movable ring structure of this utility model;

[0016] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0017] Figure 6 This is a cross-sectional view of the bolt installation structure of this utility model.

[0018] In the diagram: 1. Base; 2. First upright plate; 3. First rotating shaft; 4. First servo motor; 5. Second rotating shaft; 6. Movable ring; 7. Annular shear head; 8. Groove; 9. Threaded hole; 10. Reserved slot; 11. Rubber sheet; 12. Pressure plate; 13. Bolt; 14. First through slot; 15. Movable block; 16. Cylinder; 17. Second servo motor; 18. Second through slot; 19. Guide block; 20. Second upright plate; 21. Third rotating shaft; 22. Third servo motor; 23. Fourth rotating shaft; 24. Fixed plate; 25. Fifth rotating shaft; 26. Limiting rod; 27. Movable plate; 28. Baffle; 29. ​​Limiting wheel; 30. Fourth servo motor; 31. Handheld controller. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please see Figure 1-6This is the first embodiment of the present invention. This embodiment provides a shearing head moving structure for a shredder, including a base 1. A first rotating shaft 3 is rotatably arranged above the base 1. A second rotating shaft 5 is rotatably arranged above the first rotating shaft 3 via a height adjustment mechanism. Locking mechanisms for fixing the movable ring 6 and the annular shearing head 7 are provided between the first rotating shaft 3 and the second rotating shaft 5 and the movable ring 6. A first upright plate 2 is fixed to the front side of the middle of the upper surface of the base 1. The first upright plates 2 are rotatably connected to the end of the first rotating shaft 3 via bearings. One end of the first rotating shaft 3 passes through the interior of the first upright plate 2 and is fixedly connected to the output end of the first servo motor 4. The outer wall of the first servo motor 4 is fixed to the outer side of the first upright plate 2. Several movable rings 6 are nested and slidably arranged on the outer sides of the first rotating shaft 3 and the second rotating shaft 5. An annular shearing head 7 is nested and fixed at the outer end of the movable ring 6 near the end of the second rotating shaft 5. The annular shearing head 7 is arranged near the middle of the second rotating shaft 5.

[0022] Specifically, the height adjustment mechanism includes a first through groove 14, the top of the first upright plate 2 is provided with the first through groove 14, and the two sides of the first through groove 14 are provided with second through grooves 18. A movable block 15 is slidably arranged inside the first through groove 14. The interior of the movable block 15 is rotatably connected to the end of the second rotating shaft 5 through a bearing. A cylinder 16 is fixedly fixed through the top of the first upright plate 2. The lower output end of the cylinder 16 is fixedly connected to the top of the movable block 15. Guide blocks 19 are fixed on both sides of the movable block 15. The guide blocks 19 are slidably connected to the second through grooves 18.

[0023] Specifically, a conveying mechanism is provided at both ends of the top of the base 1. The conveying mechanism includes a second upright plate 20. The second upright plate 20 is fixed at both the front and rear sides of the top of the base 1. A third rotating shaft 21 is rotatably installed between the second upright plates 20 through bearings. The output end of the third rotating shaft 21 passes through the interior of the second upright plate 20 and is fixedly connected to the output end of the third servo motor 22. The outer wall of the third servo motor 22 is fixed to the outside of the second upright plate 20. A fourth rotating shaft 23 is provided between the second upright plates 20 above the third rotating shaft 21 through a height adjustment mechanism. The ends of the fourth rotating shaft 23 and the second rotating shaft 5 both pass through the interior of the movable block 15 and are fixedly connected to the output end of the second servo motor 17. The outer wall of the second servo motor 17 is fixed to one side of the movable block 15.

[0024] Specifically, the locking mechanism includes a groove 8 and a bolt 13. The outer side of the movable ring 6 has a groove 8, and the inner side of the movable ring 6 has a threaded hole 9. The outer sides of the first rotating shaft 3 and the second rotating shaft 5 are both provided with reserved grooves 10 between the first vertical plate 2. A rubber sheet 11 is fixed inside the reserved groove 10. A pressure plate 12 is slidably arranged inside the rubber sheet 11. The upper end of the bolt 13 is slidably arranged inside the groove 8. The lower end of the bolt 13 passes through the inside of the threaded hole 9 and is rotatably connected to the top center of the pressure plate 12 through a bearing. The bolt 13 is threadedly connected to the threaded hole 9. The groove 8, the threaded hole 9, the reserved groove 10, the rubber sheet 11, the pressure plate 12, and the bolt 13 are all distributed at equal angles about the central axis of the first rotating shaft 3 and the second rotating shaft 5.

[0025] Furthermore, when it is necessary to fix the relative position of the movable ring 6 and the first rotating shaft 3 (or the second rotating shaft 5), the operator rotates the bolt 13 in the groove 8 using the existing L-shaped wrench. Since the bolt 13 is threadedly connected to the threaded hole 9 on the movable ring 6, the bolt 13 will move axially along the threaded hole 9 when rotating, and its lower end will push the pressure plate 12 towards the rubber sheet 11 inside the reserved groove 10 through the bearing and squeeze it.

[0026] Because the grooves 8, threaded holes 9, and reserved grooves 10 are all angularly distributed about the central axes of the first rotating shaft 3 and the second rotating shaft 5, multiple pressure plates 12 will simultaneously apply pressure to the rubber sheet 11. After being squeezed, the rubber sheet 11 deforms and fits tightly between the inner wall of the reserved groove 10 and the pressure plate 12, forming a large area of ​​clamping force. This multi-point uniformly distributed pressure transmission method can convert the locking force of the bolt 13 into the frictional force between the first rotating shaft 3, the second rotating shaft 5 and the movable ring 6, and the contact area is five or six times that of the traditional single bolt clamping method, thereby achieving a stable connection between the movable ring 6 and the first rotating shaft 3 and the second rotating shaft 5, effectively preventing relative displacement caused by vibration during shearing.

[0027] When the position of the movable ring 6 needs to be adjusted, rotate the bolt 13 in the opposite direction, the pressure plate 12 separates from the rubber sheet 11, the rubber sheet 11 returns to its original state, and the clamping force on the first rotating shaft 3 and the second rotating shaft 5 is released. At this time, the movable ring 6 can be pushed to slide freely along the first rotating shaft 3 and the second rotating shaft 5 until it is adjusted to the target position and then locked again.

[0028] Example 2

[0029] Please see Figure 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0030] An anti-deviation mechanism is provided on one side of the conveying mechanism. The anti-deviation mechanism includes a fixed plate 24. A fixed plate 24 is fixed to one side of the second vertical plate 20. A fifth rotating shaft 25 is rotatably mounted between the fixed plates 24 via bearings. A movable plate 27 is nested and threaded on the outer side of the fifth rotating shaft 25. A limit rod 26 is nested and slidably arranged inside the movable plate 27 above the fifth rotating shaft 25. The end of the limit rod 26 is fixedly connected to one side of the fixed plate 24. The end of the fifth rotating shaft 25 passes through the interior of the fixed plate 24 and is fixedly connected to the output end of the fourth servo motor 30. The outer wall of the machine 30 is fixed to one side of the fixed plate 24. A baffle 28 is fixed on one side of the movable plate 27 away from the fixed plate 24. Limiting wheels 29 are installed between the baffles 28 through bearings. Both ends of the fifth rotating shaft 25 are provided with opposite threads. The movable plate 27, baffle 28 and limiting wheels 29 are symmetrically distributed about the central axis of the fifth rotating shaft 25. A handheld controller 31 is placed on the top of the base 1. The handheld controller 31 is wirelessly connected to the first servo motor 4, cylinder 16, second servo motor 17, third servo motor 22 and fourth servo motor 30.

[0031] Furthermore, when it is necessary to prevent offset constraint on strips of different widths, the fourth servo motor 30 is started by the handheld controller 31, and its output drives the fifth rotating shaft 25 to rotate. Since the fifth rotating shaft 25 has opposite threads at both ends, and the movable plate 27 is threadedly connected to the fifth rotating shaft 25, and the movable plate 27 restricts the degree of rotational freedom through the limit rod 26, when the fifth rotating shaft 25 rotates, the movable plates 27 on both sides will make synchronous reverse linear motion along the limit rod 26.

[0032] When the movable plate 27 moves, it drives the baffle 28 fixed on its outer side and the limiting wheels 29 between the baffles 28 to move synchronously until the limiting wheels 29 on both sides gently contact the sides of the strip. At this time, the strip moves forward under the drive of the conveying mechanism. The limiting wheels 29 rotate synchronously with the strip due to the friction generated by contact with the strip, thus forming a lateral constraint on the strip from both sides and preventing it from shifting left or right during the conveying process.

[0033] Working principle: The operator uses an L-shaped wrench to rotate the bolts 13 in the outer grooves 8 of the two outermost movable rings 6 on the second rotating shaft 5. Since the bolts 13 are threadedly connected to the threaded holes 9, when the bolts 13 rotate, they move axially along the threaded holes 9. The lower end drives the pressure plate 12 away from the rubber sheet 11 in the reserved groove 10 through the bearing, releasing the clamping force on the second rotating shaft 5. Then, the two movable rings 6 with annular shear heads 7 are pushed to slide along the second rotating shaft 5, and the annular shear heads 7 are adjusted to the approximate shearing position. Then, the bolts 13 are tightened in the opposite direction, so that the pressure plate 12 squeezes the rubber sheet 11. The large-area clamping force is formed by multiple sets of locking components distributed at equal angles, which firmly fixes the movable rings 6 to the second rotating shaft 5. At the same time, the positions of other movable rings 6 on the first rotating shaft 3 and the second rotating shaft 5 are adjusted according to the conveying requirements, and they are also fixed by the above locking method. The handheld controller 31 controls the cylinder 16 to work. The output end of the cylinder 16 drives the movable block 15 to move up and down along the first through groove 14. At the same time, the guide block 19 slides in the second through groove 18 to play a guiding role, thereby adjusting the distance between the second rotating shaft 5 and the first rotating shaft 3. The first servo motor 4 and the second servo motor 17 are started to drive the first rotating shaft 3 and the second rotating shaft 5 to rotate respectively. The cooperation between the annular shear head 7 on the two outermost movable rings 6 on the second rotating shaft 5 and the corresponding movable ring 6 on the first rotating shaft 3 is observed. By fine-tuning the extension and retraction of the cylinder 16, the annular shear head 7 reaches a precise shearing state, and the tool setting is completed. Based on the width of the strip, the fourth servo motor 30 is activated via the handheld controller 31. Its output drives the fifth rotating shaft 25 to rotate. Since the fifth rotating shaft 25 has opposite threads at both ends, and the movable plate 27 is threadedly connected to the fifth rotating shaft 25, while the movable plate 27 is restricted from rotating by the limiting rod 26, the two movable plates 27 move synchronously in opposite directions along the limiting rod 26, driving the baffle 28 and the limiting wheel 29 to move until the two limiting wheels 29 gently contact the sides of the strip, thus adapting to strips of different widths. Subsequently, the conveying mechanism is activated. The third servo motor 22 and the second servo motor 17 drive the third rotating shaft 21 and the fourth rotating shaft 23 to rotate, respectively. At the same time, the movable rings 6 on the first rotating shaft 3 and the second rotating shaft 5 work together to convey the strip to the shearing area. During the conveying process, the strip drives the two limiting wheels 29 to rotate synchronously. The limiting wheels 29 form a lateral constraint on the strip from both sides, preventing it from shifting left or right and ensuring that the strip moves along the preset path. When the strip enters the shearing area, the first servo motor 4 and the second servo motor 17 continuously drive the first rotating shaft 3 and the second rotating shaft 5 to rotate. The annular shearing head 7 on the two outermost movable rings 6 on the second rotating shaft 5 shears the edge of the strip to remove the cracked edge. The two ends of the strip are connected to the unwinding equipment and the winding equipment, respectively, and the cut-off waste is wound up by another winding equipment.

Claims

1. A shearing head moving structure for a shredder, comprising a base, wherein a first rotating shaft is rotatably mounted on the base, and a second rotating shaft is rotatably mounted on the first rotating shaft via a height adjustment mechanism, characterized in that: Both the first and second rotating shafts are provided with locking mechanisms for fixing the movable ring and the annular shear head. The locking mechanism includes a pre-reserved groove and a bolt. The first and second rotating shafts are provided with pre-reserved grooves, and rubber sheets are fixed in the pre-reserved grooves. A pressure plate is slidably provided on the rubber sheets. The movable ring is provided with a threaded hole. The lower end of the bolt passes through the interior of the threaded hole and is rotatably connected to the top center of the pressure plate. The bolt is threadedly connected to the threaded hole.

2. The shear head moving structure of a shredder according to claim 1, characterized in that: The base is fixed with a first upright plate, which is rotatably connected to a first rotating shaft. The first rotating shaft passes through the first upright plate and is fixedly connected to a first servo motor. The first rotating shaft and the second rotating shaft are slidably connected to the movable ring.

3. The shear head moving structure of a shredder according to claim 1, characterized in that: The locking mechanism also includes a groove, the movable ring has a groove, and a bolt is slidably disposed in the groove. The groove, threaded hole, reserved groove, rubber sheet, pressure plate and bolt are all distributed at equal angles about the central axis of the first rotating shaft and the second rotating shaft.

4. The shear head moving structure of a shredder according to claim 2, characterized in that: The height adjustment mechanism includes a first through slot, the first upright plate has a first through slot, the first through slot has a second through slot, the first through slot is provided with a movable block, the movable block is connected to a second rotating shaft, the first upright plate is fixedly fixed with a cylinder, the cylinder is fixedly connected to the movable block, the movable block is fixed with a guide block, and the guide block is slidably connected to the second through slot.

5. The shear head moving structure of a shredder according to claim 1, characterized in that: The base is provided with a conveying mechanism, which includes a second upright plate. The base is fixed with the second upright plate. A third rotating shaft is rotatably installed between the second upright plates. The third rotating shaft passes through the interior of the second upright plate and is fixedly connected to a third servo motor. A fourth rotating shaft is provided between the second upright plates above the third rotating shaft through a height adjustment mechanism. The fourth rotating shaft and the second rotating shaft pass through the interior of the movable block and are fixedly connected to the second servo motor.

6. The shear head moving structure of a shredder according to claim 5, characterized in that: An anti-deviation mechanism is provided on one side of the conveying mechanism. The anti-deviation mechanism includes a fixed plate, a fixed plate is fixed to the second upright plate, a fifth rotating shaft is rotatably installed between the fixed plates, a movable plate is threaded onto the fifth rotating shaft, a limit rod is provided above the movable plate on the fifth rotating shaft, the limit rod is fixedly connected to the fixed plate, the fifth rotating shaft passes through the fixed plate and is fixedly connected to the fourth servo motor, a baffle is fixed to the movable plate away from the fixed plate, and a limit wheel is rotatably installed between the baffles.

7. The shear head moving structure of a shredder according to claim 6, characterized in that: Both ends of the fifth rotating shaft are provided with opposite threads. The movable plate, baffle and limiting wheel are symmetrically distributed about the central axis of the fifth rotating shaft. The base is equipped with a handheld controller. The handheld controller is wirelessly connected to the first servo motor, cylinder, second servo motor, third servo motor and fourth servo motor.

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