Quick tool changing device for slitting machine group

Abstract

The application discloses a kind of quick tool changer for slitting unit, it is related to longitudinal shearing machine tool changing technical field, including first rack and second rack, fixed roll and round knife roll are respectively arranged between the first rack and second rack, the circumferential outer wall of fixed roll is fixedly connected with the lower cutting disc of equidistant distribution, the circumferential outer wall of round knife roll is fixedly connected with the locking seat of equidistant distribution, the side of locking seat is fixedly connected with tool seat.In the application, accurate positioning is realized by mechanical transmission, without manual adjustment of butt joint position, which ensures the coaxiality of new cutting tool assembly and driving assembly, avoids power transmission deviation during cutting, further shortens the restart time after tool changing, ensures that the device can quickly recover efficient production, and the mechanical interlocking connection mode continuously ensures the stability during cutting process, avoids the skew or displacement of new tool due to fixing problem.

Description

Technical Field

[0001] This invention relates to the field of blade changing technology for slitting machines, and more specifically, to a quick blade changing device for slitting machine units. Background Technology

[0002] A slitting machine, also known as a slitting line, longitudinal cutter, or strip slitting machine, is mainly used to uncoil, slit, and rewind metal coils into strips of the required width. It is an indispensable piece of equipment in metal material production. The slitting components of existing slitting machines mainly consist of a drive shaft and several disc shears mounted on the drive shaft. On some slitting machines, the distance between adjacent disc shears can be adjusted to meet the production needs of strips of different widths.

[0003] Currently, in practical use, since several disc shears are installed sequentially on the same drive shaft, if one disc shear develops problems such as chipping or nicking, it must be replaced to ensure the quality of the slitting strip. However, replacing a disc shear requires stopping the entire machine, significantly impacting production efficiency. Furthermore, unless the damaged disc shear is located at one end of the drive shaft, other undamaged disc shears must be removed sequentially before the damaged one can be removed from the drive shaft. Finally, the intact disc shears must be reinstalled sequentially, which is extremely time-consuming and labor-intensive, and also increases the risk of accidental injury.

[0004] A search revealed Chinese invention patent CN117961173A, which discloses a quick-change slitting machine, relating to the field of aluminum production equipment technology. The machine includes a feeding mechanism, a slitting mechanism, and a winding mechanism arranged sequentially along the feeding direction. The slitting mechanism includes slitting frames arranged opposite each other on both sides of the feeding direction. A mounting rod is horizontally arranged between the slitting frames, perpendicular to the feeding direction. Several cutting blade assemblies are arrayed along the length of the mounting rod. A drive assembly located on one side of the mounting rod and cooperating with the cutting blade assemblies is provided on the slitting frame. An auxiliary assembly is located on the slitting frame near the winding mechanism, with the cutting blade assemblies located on the side of the auxiliary assembly away from the winding mechanism. A detection assembly is located on the side of the auxiliary assembly away from the winding mechanism, and a re-inspection assembly is located on the side near the winding mechanism.

[0005] The existing technology reveals the following shortcomings of the aforementioned patent: While it enables rapid replacement of the cutting blade assembly, the entire assembly is fixed solely by the attraction between the disk and the electromagnet during rotary cutting. This fixing method is unstable and easily leads to skewing of the cutting blade assembly during cutting. Furthermore, the magnetic fixing method is susceptible to external interference, such as metal dust adhering to the disk or electromagnet surface, or magnetic attenuation of the magnetic components after long-term use. These issues further weaken the fixing strength, causing slight displacement of the cutting blade assembly during high-frequency cutting operations. This displacement not only exacerbates the misalignment and wear between the upper cutting blade and the lower cutting disk, shortening the blade's lifespan, but also causes quality problems such as burrs and dimensional deviations in the slitting strip, increasing the correction costs of subsequent processing steps. In addition, the magnetic fixing structure requires extremely high installation precision for the cutting blade assembly. Even slight flatness errors in the contact surfaces of the disk and electromagnet directly lead to uneven fixing force, further amplifying the risk of skewing during cutting, making it difficult to meet the production requirements of high-precision metal slitting. Therefore, there is an urgent need for a quick-change blade device for slitting machines to solve the above problems. Summary of the Invention

[0006] In view of the problems in the related technologies, the present invention proposes a quick blade change device for slitting machines to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] The technical solution of this invention is implemented as follows: A quick-change blade device for a slitting machine includes a first frame and a second frame. A fixed roller and a circular blade roller are respectively arranged between the first frame and the second frame. The outer circumference of the fixed roller is fixedly connected with equally spaced lower cutting discs. The outer circumference of the circular blade roller is fixedly connected with equally spaced locking seats. A blade holder is fixedly connected to one side of the locking seat. The inner circumference of the blade holder is fixedly connected with equally spaced circularly distributed cutting blade assemblies. A drive assembly for providing rotational power to the cutter assembly is provided on one side of the first frame; The second frame is provided with a transverse movement assembly on one side to facilitate quick engagement and disengagement of the drive assembly and the cutter assembly; A switching component for replacing the cutting blade assembly inside the blade holder is provided on one side of the first frame; The rotational motion of the switching component provides the driving force for the transverse component; The cutting assembly includes a blade holder fixedly connected to the inner circumference of the blade holder, with rotating shafts rotatably connected to both inner walls of the blade holder, and upper cutting blades fixedly connected to the outer circumference of the rotating shafts.

[0008] Preferably, the switching assembly includes a mounting plate disposed on one outer wall of the first frame. A second connecting plate is fixedly connected to one side of the mounting plate. A first motor is fixedly connected to one outer wall of the mounting plate. A first connecting plate is fixedly connected to one outer wall of the second connecting plate. A disc is fixedly connected to the output end of the first motor passing through one side of the first connecting plate. A connecting rod is fixedly connected to the outer circumference of the disc. A crank is fixedly connected to one outer wall of the connecting rod. A sliding rod is provided on one side of the connecting rod. A through-type second sliding groove is opened at the top of the sliding rod. The crank passes through the inside of the second sliding groove. A toothed rod is fixedly connected to one end of the sliding rod. A spur gear meshes on the outer wall. A protrusion is provided on one side of the first connecting plate. A movable block is fixedly connected to one side of the outer wall of the gear rod. The movable block is slidably connected to the protrusion. A sliding plate is fixedly connected to the outer wall of the movable block away from the gear rod. One side of the outer wall of the sliding plate contacts one side of the outer wall of the first connecting plate. A second gear disk is fixedly connected to the outer circumference of the output end of the first motor. A first gear disk meshes with the outer circumference of the second gear disk. A first rotating column is fixedly connected to the inner circumference of the first gear disk. One end of the first rotating column is fixedly connected to the circular cutter roller. A rectangular groove is provided on one side of the mounting plate to facilitate the stable rotation of the first gear disk.

[0009] Preferably, the outer circumferential wall of the second gear disk has a notch for intermittent meshing with the first gear disk.

[0010] Preferably, a square groove is provided on one side of the first frame, and a limiting groove is provided on both inner walls of the square groove. A slide block is slidably connected in the limiting groove. One end of the circular cutter roller is rotatably connected to the slide block. A screw is rotatably connected to the top outer wall of the slide block. The screw is threaded to the bottom of the first frame. A throttle is fixedly connected to the top end of the screw. A second guide post is fixedly connected to the top outer wall of the other slide block. One end of the second guide post passes through the top of the second frame.

[0011] Preferably, a through groove is provided on one side of the outer wall of the first frame, and a first guide post is fixedly connected to the inner walls of the upper and lower sides of the through groove. A third guide cylinder and a first guide cylinder are fixedly connected to one side of the outer wall of the mounting plate and the second connecting plate, respectively. The third guide cylinder and the first guide cylinder are both sleeved on the circumferential outer wall of the first guide post.

[0012] Preferably, the transverse assembly includes a threaded screw connected to the inner circumference of the spur gear, a threaded sleeve threadedly connected to the outer circumference of the threaded screw, a first sliding groove provided on one side of both the first frame and the second frame, a sliding block slidably connected inside the first sliding groove, a transverse seat fixedly connected to one side of the sliding block, the threaded screw rotatably connected to the inner walls of both sides of the transverse seat, a third guide post fixedly connected to the inner walls of both sides of the transverse seat, a second guide cylinder sleeved on the outer circumference of the third guide post, the second guide cylinder fixedly connected to the threaded sleeve, and the side of the threaded sleeve away from the second guide cylinder fixedly connected to the drive assembly.

[0013] Preferably, the drive assembly includes a rotating seat fixedly connected to the outer wall of the top of the threaded sleeve, a second motor fixedly connected to one side of the outer wall of the rotating seat, a rotating rod fixedly connected to the output end of the second motor, driving wheels evenly distributed on the outer circumference of the rotating rod, a transmission belt drivingly connected to the outer circumference of the driving wheels, a driven wheel drivingly connected to the driving wheel through the transmission belt, a connecting pipe fixedly connected to one side of the outer wall of the driven wheel, and one end of the rotating shaft inserted into the interior of the connecting pipe.

[0014] Preferably, a protrusion is fixedly connected to the outer circumference of the rotating shaft, and a slot is provided on the outer circumference of the connecting pipe, with the protrusion engaging with the slot.

[0015] Preferably, a second rotating column is fixedly connected to the side of the driven wheel away from the connecting pipe, and a side plate is rotatably connected to the other end of the second rotating column.

[0016] Preferably, one end of the side plate is fixedly connected to a horizontal plate, and both ends of the horizontal plate are fixedly connected to the outer walls of both ends of the rotating seat.

[0017] The beneficial effects of this invention are: This invention provides a quick blade change device for a slitting machine, mainly supported by a first frame and a second frame. A fixed roller and its outer wall lower cutting disc serve as the cutting reference. The circular blade roller is rotatably connected to the frame through sliding blocks at both ends. The blade assembly (composed of a blade holder, a rotating shaft, and an upper cutting blade) with equidistant circular distributions inside the blade holder on its outer wall forms a cutting pair with the lower cutting disc. When the entire slitting machine is cutting, the second motor of the drive assembly is started, and the power is transmitted to the driven wheel through the rotating rod, the driving wheel, and the transmission belt. The connecting pipe on one side of the driven wheel drives the rotating shaft of the blade assembly to rotate synchronously through the mechanical fitting structure of the protrusion on the outer wall of the rotating shaft and the slot on the connecting pipe. This allows the upper cutting blade to cooperate with the lower cutting disc to complete the slitting of the metal coil. This mechanical fitting method has better stability, thereby effectively avoiding blade skew and improving cutting accuracy.

[0018] This invention provides a quick blade changer for a slitting machine. When a set of upper cutting blades is damaged and needs replacement, the operator starts the first motor of the switching assembly. The motor output synchronously drives two mechanisms: First, the second gear disc rotates. Because its outer wall has a notch, it intermittently meshes with the first gear disc. Initially, the first gear disc has a delayed response, while the disc drives the crank to make circular motion through the connecting plate. The crank is embedded in the second groove of the slide rod, converting the circular motion into the horizontal reciprocating motion of the slide rod. The toothed rod at one end of the slide rod moves accordingly (the cooperation of the moving block, the sliding plate, and the first connecting plate ensures that the horizontal movement is without deviation). The toothed rod meshes with the spur gear, driving the spur gear to rotate. Second, the rotation of the spur gear drives the inner threaded screw to rotate. The threaded sleeve on the threaded screw, guided and restricted by the third guide post and the second guide cylinder, drives the entire drive assembly to move horizontally, ultimately separating the connecting pipe from the shaft of the cutting assembly without disassembly. The entire shaft cutter can be removed for independent operation, shortening tool change time and reducing the risk of accidental injury. After the connecting pipe is separated from the rotating shaft, the notch of the second gear disk rotates to the other side of the first gear disk, and the second gear disk meshes normally with the first gear disk. The first gear disk drives the circular cutter roller to rotate through the first rotating column, rotating the new cutter assembly to the cutting position (after the circular cutter roller rotates 90°, the notch of the second gear disk aligns with the first gear disk again, and the circular cutter roller stops rotating). Then, the rack rotates through the crank to perform a reset lateral movement, driving the spur gear to rotate in the opposite direction, driving the threaded screw to rotate in the opposite direction, so that the threaded sleeve drives the drive assembly to reset towards the new cutter assembly. The connecting pipe and the rotating shaft of the new cutter assembly re-engage through the cam and slot. The first motor is turned off and the second motor is restarted, and the new cutter assembly can then cooperate with the lower cutting disc to resume longitudinal cutting. The entire reset process is precisely positioned through mechanical transmission, ensuring the cutting stability of the new cutter and avoiding power transmission deviation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall front structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall rear structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall half-sectional structure of the present invention.

[0023] Figure 4 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0024] Figure 5 This is a partially enlarged structural diagram of the back of the switching component of the present invention.

[0025] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B in the middle.

[0026] Figure 7 This is a front view of the switching component of the present invention.

[0027] Figure 8 This is a schematic diagram of the front structure of the switching component of the present invention after disassembly.

[0028] Figure 9 This is a schematic diagram of the rear structure of the switching component of the present invention after disassembly.

[0029] In the picture: 1. First frame; 2. Second frame; 3. First motor; 4. Mounting plate; 5. Rectangular groove; 6. First gear disc; 7. First rotating column; 8. First connecting plate; 9. Fixed roller; 10. Circular cutter roller; 11. Cutter holder; 12. Upper cutting blade; 13. Rotary handle; 14. Screw; 15. Slide; 16. First guide post; 17. First guide cylinder; 18. Second connecting plate; 19. Lower cutting disc; 20. Second guide post; 21. Transverse sliding seat; 22. First slide groove; 23. Threaded screw; 24. Third guide post; 25. Threaded sleeve; 26. 27. Second motor; 28. Rotating seat; 29. ​​Rotating rod; 30. Side plate; 31. Horizontal plate; 32. Driving wheel; 33. Transmission belt; 34. Locking seat; 35. Tool holder; 36. Rotating shaft; 37. Driven wheel; 38. Spur gear; 39. Connecting pipe; 40. Slot; 41. Second rotating column; 42. Disc; 43. Connecting rod; 44. Slide rod; 45. Second slide groove; 46. Crank; 47. Gear rack; 48. Protrusion; 49. Third guide cylinder; 50. Slide plate; 51. Second gear disc; 52. Notch; 53. Moving block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0031] Please see Figures 1-9A quick blade change device for a slitting machine includes a first frame 1 and a second frame 2. A fixed roller 9 and a circular blade roller 10 are respectively arranged between the first frame 1 and the second frame 2. The outer circumferential wall of the fixed roller 9 is fixedly connected with equally spaced lower cutting discs 19. The outer circumferential wall of the circular blade roller 10 is fixedly connected with equally spaced locking seats 34. A blade holder 11 is fixedly connected to one side of the locking seat 34. The inner circumferential wall of the blade holder 11 is fixedly connected with equally spaced circular cutting blade assemblies. A drive assembly for providing rotational power to the cutter assembly is provided on one side of the first frame 1; A transverse movement assembly is provided on one side of the second frame 2 to facilitate quick engagement and disengagement of the drive assembly and the cutter assembly; A switching component for replacing the internal cutting blade assembly of the blade holder 11 is provided on one side of the first frame 1; The rotational motion of the switching component provides driving force to the transverse component. The switching component not only undertakes the task of switching the workstation of the cutting component, but also provides driving force to the transverse component. The tool changing process of "disconnecting the driving component, switching the cutting component, and resetting and snapping the driving component" can be completed without an additional power source. This avoids the cumbersome operation of disassembling the entire shaft tool required by traditional tool changing, greatly shortens the tool changing time, reduces labor costs and safety risks, and is suitable for high-precision and high-frequency metal slitting production scenarios. The cutting assembly includes a blade holder 35 fixedly connected to the inner circumference of the blade holder 11. Both sides of the inner wall of the blade holder 35 are rotatably connected to a rotating shaft 36, and the outer circumference of the rotating shaft 36 is fixedly connected to an upper cutting blade 12.

[0032] Furthermore, the switching assembly includes a mounting plate 4 disposed on one outer wall of the first frame 1. A second connecting plate 18 is fixedly connected to one side of the mounting plate 4. A first motor 3 is fixedly connected to one outer wall of the mounting plate 4. A first connecting plate 8 is fixedly connected to one outer wall of the second connecting plate 18. A disc 42 is fixedly connected to the output end of the first motor 3 passing through one side of the first connecting plate 8. A connecting rod 43 is fixedly connected to the outer circumference of the disc 42. A crank 46 is fixedly connected to one outer wall of the connecting rod 43. A slide rod 44 is provided on one side of the connecting rod 43. A through-type second slide groove 45 is opened at the top of the slide rod 44. The crank 46 passes through the inside of the second slide groove 45. One end of the first motor 3 is fixedly connected to a rack 47, and a spur gear 38 meshes with the outer wall of one side of the rack 47. A protrusion 48 is provided on one side of the first connecting plate 8. A moving block 53 is fixedly connected to the outer wall of one side of the rack 47 and is slidably connected to the protrusion 48. A sliding plate 50 is fixedly connected to the outer wall of the moving block 53 away from the rack 47. The outer wall of the sliding plate 50 is in contact with the outer wall of one side of the first connecting plate 8. A second gear disk 51 is fixedly connected to the outer circumference of the output end of the first motor 3. A first gear disk 6 meshes with the outer circumference of the second gear disk 51. A first rotating column 7 is fixedly connected to the inner circumference of the first gear disk 6. One end of the first rotating column 7 is connected to the inner circumference of the first gear disk 6. The cutter roller 10 is fixedly connected. A rectangular groove 5 is provided on one side of the mounting plate 4 to facilitate the stable rotation of the first gear disk 6. A notch 52 is provided on the outer circumference of the second gear disk 51 to achieve intermittent meshing with the first gear disk 6. When a set of upper cutting blades 12 has problems such as chipping or nicks and needs to be replaced, it is not necessary to stop the machine and disassemble the entire cutter shaft. Specifically, the first motor 3 of the switching component is started first. The output end of the first motor 3 synchronously drives the two major mechanisms to move: one is the rotation of the second gear disk 51 on the motor shaft. Since the notch 52 is provided on the outer circumference of the second gear disk 51, it intermittently meshes with the first gear disk 6. Through this intermittent meshing, the first motor 3 can achieve intermittent meshing with the first gear disk 6. Upon startup, disk 42 responds immediately, while the first gear disk 6 responds with a delay. At this time, as disk 42 rotates, it drives crank 46 to make circular motion through connecting rod 43. Crank 46 is embedded in the second sliding groove 45 of slide rod 44, converting the circular motion into horizontal reciprocating motion of slide rod 44. The toothed rod 47 at one end of slide rod 44 moves synchronously. The toothed rod 47 is slidably connected to the protrusion 48 of the first connecting plate 8 through moving block 53, and the sliding plate 50 is in contact with the outer wall of the first connecting plate 8 to ensure that the toothed rod 47 moves only in the horizontal direction and avoids deviation. During the reciprocating movement of the toothed rod 47, it meshes with spur gear 38 and drives spur gear 38 to make forward and reverse reciprocating rotation.

[0033] Furthermore, a square groove is provided on one side of the first frame 1, and limit grooves are provided on both inner walls of the square groove. A slide block 15 is slidably connected in the limit groove. One end of the circular cutter roller 10 is rotatably connected to the slide block 15. A screw 14 is rotatably connected to the top outer wall of the slide block 15. The screw 14 is threadedly connected to the bottom of the first frame 1. A handle 13 is fixedly connected to the top of the screw 14. A second guide post 20 is fixedly connected to the top outer wall of the other slide block 15. One end of the second guide post 20 passes through the top of the second frame 2. By rotating the handle 13, the circular cutter roller 10 can be raised and lowered to meet the user's needs for longitudinal shearing of metals of different thicknesses.

[0034] Furthermore, a through groove is provided on one side of the outer wall of the first frame 1, and the first guide post 16 is fixedly connected to the inner walls of the upper and lower sides of the through groove. The third guide cylinder 49 and the first guide cylinder 17 are fixedly connected to one side of the outer wall of the mounting plate 4 and the second connecting plate 18, respectively. The third guide cylinder 49 and the first guide cylinder 17 are both sleeved on the circumferential outer wall of the first guide post 16.

[0035] Furthermore, the transverse assembly includes a threaded screw 23 connected to the inner circumference of the spur gear 38. A threaded sleeve 25 is threadedly connected to the outer circumference of the threaded screw 23. A first sliding groove 22 is provided on one side of both the first frame 1 and the second frame 2. A sliding block is slidably connected inside the first sliding groove 22. A transverse seat 21 is fixedly connected to one side of the sliding block. The threaded screw 23 is rotatably connected to both inner walls of the transverse seat 21. A third guide post 24 is fixedly connected to both inner walls of the transverse seat 21. A second guide cylinder 26 is sleeved on the outer circumference of the third guide post 24. The second guide cylinder 26 is fixedly connected to the threaded sleeve 25. The side of the threaded sleeve 25 away from the second guide cylinder 26 is fixedly connected to the drive assembly. During the rotation of the spur gear 38, the threaded screw 23 fixed to the inner ring of the spur gear 38 rotates synchronously. The threaded screw 23 is positioned by the transverse seat 21. The transverse seat 21 is connected to the first sliding groove 22 of the frame 38 by the sliding block. A sliding connection is established via a slidable groove 22. The threaded sleeve 25 on its outer circumference is driven by the threaded transmission and the second guide cylinder 26, which in turn drives the top drive assembly to move horizontally. The third guide column 24 restricts the threaded sleeve 25 from rotating with the lead screw, ensuring only lateral movement. Ultimately, the connecting pipe 39 of the drive assembly and the rotating shaft 36 of the cutter assembly are separated laterally. After the connecting pipe 39 and the rotating shaft 36 are separated, the notch 52 on the outer circumference of the second gear disk 51 rotates completely to the other side of the first gear disk 6. At this time, the second gear disk 51 can drive the first gear disk 6 to mesh. The first gear disk 6 will drive the circular cutter roller 10 to rotate through the first rotating column 7, realizing the replacement of different cutter assemblies. The entire cutter replacement process can be operated independently without disassembling other intact cutter assemblies, solving the problem of traditional cutter replacement requiring sequential disassembly of the entire shaft of cutters, greatly shortening the cutter replacement time, reducing the frequency of manual contact with the cutters, and avoiding the risk of accidental injury.

[0036] Furthermore, the drive assembly includes a rotating seat 28 fixedly connected to the outer wall of the top of the threaded sleeve 25. A second motor 27 is fixedly connected to one side of the outer wall of the rotating seat 28. A rotating rod 29 is fixedly connected to the output end of the second motor 27. Equally spaced driving wheels 32 are fixedly connected to the outer circumference of the rotating rod 29. A transmission belt 33 is driven to the outer circumference of the driving wheels 32. A driven wheel 37 is driven to the driving wheel 32 via the transmission belt 33. A connecting pipe 39 is fixedly connected to one side of the outer wall of the driven wheel 37. One end of the rotating shaft 36 is inserted into the inside of the connecting pipe 39. When the drive assembly is started, the second motor 27 outputs power to drive the rotating rod 29 to rotate. The driving wheels 32 on the rotating rod 29 are driven to rotate via the transmission belt 33. The transmission belt 33 transmits power to the driven wheel 37. The connecting pipe 39 on one side of the driven wheel 37 can drive the rotating shaft 36 to rotate synchronously through the engagement structure of the protrusion 48 on the outer wall of the rotating shaft 36 and the slot 40 on the outer wall of the connecting pipe 39. Ultimately, the upper cutting blade 12 and the lower cutting disc 19 cooperate to complete the longitudinal cutting operation of the metal coil. The outer circumferential wall of the rotating shaft 36 is fixedly connected with the protrusion 48, and the outer circumferential wall of the connecting pipe 39 is provided with the slot 40. The protrusion 48 and the slot 40 cooperate with each other. Through the engagement between the protrusion 48 and the slot 40, a rigid connection can be achieved between the rotating shaft 36 and the connecting pipe 39, ensuring that the rotating shaft 36 will not be skewed when driving the upper cutting blade 12 to rotate.

[0037] Furthermore, a second rotating column 41 is fixedly connected to the side of the driven wheel 37 away from the connecting pipe 39, and a side plate 30 is rotatably connected to the other end of the second rotating column 41. The side plate 30 can provide stable support for the rotation of the second rotating column 41 and the driven wheel 37, ensuring that the driven wheel 37 can rotate stably.

[0038] Furthermore, a horizontal plate 31 is fixedly connected to one end of the side plate 30. Both ends of the horizontal plate 31 are fixedly connected to the outer walls of both ends of the rotating seat 28. The horizontal plate 31 can effectively ensure the stability of multiple sets of side plates 30 during operation.

[0039] In summary, with the aid of the above-mentioned technical solution of the present invention, during the conventional cutting operation of the slitting machine, i.e., when the device is in the cutting state, the fixed roller 9 uses the lower cutting disc 19 on the outer circumferential wall as a fixed cutting reference, while the circular blade roller 10 is rotatably connected to the frame through the sliding blocks 15 at both ends. The blade assembly, consisting of a blade holder 35, a rotating shaft 36, and an upper cutting blade 12, is equidistantly distributed within the blade holder 11 fixed by the locking seat 34, and forms a cutting pair corresponding to the lower cutting disc 19. At this time, the drive assembly starts, and the second motor 27 outputs power. The rotating rod 29 is driven to rotate, and the driving wheel 32 on the rotating rod 29 transmits power to the driven wheel 37 through the transmission belt 33. The connecting pipe 39 on one side of the driven wheel 37 can drive the rotating shaft 36 to rotate synchronously through the fitting structure of the outer wall protrusion 48 of the rotating shaft 36 and the outer wall slot 40 of the connecting pipe 39. Finally, the upper cutting blade 12 and the lower cutting disc 19 cooperate to complete the longitudinal cutting operation of the metal coil. This power transmission structure replaces the traditional magnetic fixation with mechanical fitting, avoids the skew of the cutting assembly during the cutting process, and significantly improves the cutting accuracy and stability. When a set of upper cutting blades 12 experiences problems such as chipping or nicks and needs replacement, there is no need to stop the machine and disassemble the entire cutter shaft. Specifically, the first motor 3 of the switching component is started first. The output of the first motor 3 synchronously drives two major mechanisms: one is the rotation of the second gear disk 51 on the motor shaft. Because the outer circumference of the second gear disk 51 has a notch 52, it intermittently meshes with the first gear disk 6. Through this intermittent meshing, the disk 42 responds immediately when the first motor 3 starts, while the first gear disk 6 responds with a delay. At this time, the disk 42... When rotating, the crank 46 will be driven to make a circular motion through the connecting rod 43. The crank 46 is embedded in the second sliding groove 45 of the slide rod 44, which converts the circular motion into the horizontal reciprocating motion of the slide rod 44. The toothed rod 47 at one end of the slide rod 44 moves synchronously. The toothed rod 47 is slidably connected to the protrusion 48 of the first connecting plate 8 through the moving block 53, and the sliding plate 50 is in contact with the outer wall of the first connecting plate 8 to ensure that the toothed rod 47 only moves in the horizontal direction and avoids deviation. During the reciprocating movement of the toothed rod 47, it meshes with the spur gear 38 and drives the spur gear 38 to make forward and reverse reciprocating rotation. During the rotation of the spur gear 38, the threaded screw 23 fixed to the inner ring of the spur gear 38 rotates synchronously. The threaded screw 23 is positioned by the transverse sliding seat 21, which is slidably connected to the first slide groove 22 of the frame via a sliding block. The threaded sleeve 25 on its outer circumference, under the guidance of the threaded drive and the second guide cylinder 26, drives the top drive assembly to move horizontally as a whole. The third guide post 24 restricts the threaded sleeve 25 from rotating with the screw, ensuring only transverse movement. Ultimately, the connecting pipe 39 of the drive assembly and the rotating shaft 36 of the cutter assembly are separated by transverse movement. When the connecting pipe 39... After the 9th gear is separated from the shaft 36, the notch 52 on the outer circumference of the second gear disk 51 rotates completely to the other side of the first gear disk 6. At this time, the second gear disk 51 can drive the first gear disk 6 to mesh. The first gear disk 6 will drive the circular cutter roller 10 to rotate through the first rotating column 7, realizing the replacement of different cutting blade components. The entire cutting blade replacement process can be operated independently without disassembling other intact cutting blade components, which solves the problem that traditional cutting blade replacement requires disassembling the entire shaft of cutting blades in sequence, greatly shortening the cutting blade replacement time, reducing the frequency of manual contact with the cutting blades, and avoiding the risk of accidental injury. When the circular cutter roller 10 rotates 90 degrees to move the new cutter assembly to one side of the lower cutting disc 19, the second gear disc 51 will rotate again to the notch 52. At this time, the circular cutter roller 10 stops rotating, and the rack 47 will perform a reset transverse movement through the rotation of the crank 46. The reset transverse movement of the rack 47 can drive the spur gear 38 to rotate in the opposite direction. When the spur gear 38 rotates in the opposite direction, it will drive the threaded screw 23 fixed in its inner ring to rotate in the opposite direction synchronously. Since the threaded screw 23 and the threaded sleeve 25 are threadedly engaged, and the threaded sleeve 25 is connected to the third guide post on the transverse shift seat 21 through the second guide cylinder 26. 24 Sliding connection (the third guide post 24 restricts the threaded sleeve 25 from rotating with the lead screw and can only move along the guide direction). Under the action of reverse thread transmission, the threaded sleeve 25 will drive the top drive assembly to horizontally reset towards the cutter assembly. At this time, the connecting pipe 39 on the side of the driven wheel 37 in the drive assembly will be precisely aligned with the rotating shaft 36 of the new cutter assembly. As the threaded sleeve 25 continues to reset and move, the connecting pipe 39 gradually fits onto the outer wall of the rotating shaft 36, and the protrusion 48 on the outer wall of the rotating shaft 36 will re-fit with the groove 40 on the outer wall of the connecting pipe 39, completing the power connection between the drive assembly and the new cutter assembly. After the connecting tube 39 and the rotating shaft 36 are engaged and fixed, the first motor 3 is turned off, and the second motor 27 of the drive assembly is restarted. The second motor 27 drives the rotating shaft 36 of the new cutter assembly to rotate again through the rotating rod 29, the driving wheel 32, the transmission belt 33, the driven wheel 37 and the connecting tube 39, so that the new upper cutting blade 12 and the lower cutting disc 19 cooperate to resume the longitudinal cutting operation. The entire reset process achieves precise positioning through mechanical transmission, without the need for manual adjustment of the docking position. This ensures the coaxiality of the new cutter assembly and the drive assembly, avoids power transmission deviation during cutting, and further shortens the restart time after the blade change, ensuring that the device can quickly resume efficient production. At the same time, the mechanical engagement connection method continuously ensures the stability during the cutting process, preventing the new blade from being skewed or displaced due to fixing problems.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-change tool device for a slitting machine unit, comprising a first frame (1) and a second frame (2), characterized in that, A fixed roller (9) and a circular cutter roller (10) are respectively provided between the first frame (1) and the second frame (2). The outer circumference of the fixed roller (9) is fixedly connected with equally spaced lower cutting discs (19). The outer circumference of the circular cutter roller (10) is fixedly connected with equally spaced locking seats (34). A cutter holder (11) is fixedly connected to one side of the locking seat (34). The inner circumference of the cutter holder (11) is fixedly connected with equally spaced circular cutting blade assemblies. A drive assembly for providing rotational power to the cutter assembly is provided on one side of the first frame (1); The second frame (2) is provided with a transverse movement assembly on one side to facilitate quick engagement and disengagement of the drive assembly and the cutter assembly; A switching component for replacing the internal cutting blade assembly of the blade holder (11) is provided on one side of the first frame (1); The rotational motion of the switching component provides the driving force for the transverse component; The cutting assembly includes a blade holder (35) fixedly connected to the inner circumference of the blade holder (11). Both sides of the inner walls of the blade holder (35) are rotatably connected to a rotating shaft (36), and the outer circumference of the rotating shaft (36) is fixedly connected to an upper cutting blade (12).

2. The quick-change blade device for a slitting machine unit according to claim 1, characterized in that, The switching assembly includes a mounting plate (4) disposed on one side of the outer wall of the first frame (1). A second connecting plate (18) is fixedly connected to one side of the mounting plate (4). A first motor (3) is fixedly connected to one side of the outer wall of the mounting plate (4). A first connecting plate (8) is fixedly connected to one side of the outer wall of the second connecting plate (18). A disc (42) is fixedly connected to the output end of the first motor (3) passing through one side of the first connecting plate (8). A connecting rod (43) is fixedly connected to the outer circumference of the disc (42). A crank (46) is fixedly connected to one side of the outer wall of the connecting rod (43). A slide rod (44) is provided on one side of the connecting rod (43). A through-type second slide groove (45) is opened at the top of the slide rod (44). The crank (46) passes through the inside of the second slide groove (45). A gear (47) is fixedly connected to one end of the slide rod (44). A spur gear (38) is meshed on the outer side wall. A protrusion (48) is provided on one side of the first connecting plate (8). A moving block (53) is fixedly connected to one side of the outer wall of the rack (47). The moving block (53) is slidably connected to the protrusion (48). A sliding plate (50) is fixedly connected to the outer side of the moving block (53) away from the rack (47). The outer side of the sliding plate (50) is in contact with the outer side of the first connecting plate (8). A second gear disk (51) is fixedly connected to the outer circumference of the output end of the first motor (3). A first gear disk (6) is meshed on the outer circumference of the second gear disk (51). A first rotating column (7) is fixedly connected to the inner circumference of the first gear disk (6). One end of the first rotating column (7) is fixedly connected to the circular cutter roller (10). A rectangular groove (5) is provided on one side of the mounting plate (4) to facilitate the stable rotation of the first gear disk (6).

3. A quick-change blade device for a slitting machine unit according to claim 2, characterized in that, The outer circumferential wall of the second gear disk (51) is provided with a notch (52) that allows it to intermittently mesh with the first gear disk (6).

4. A quick-change blade device for a slitting machine unit according to claim 3, characterized in that, A square groove is provided on one side of the first frame (1), and a limiting groove is provided on both sides of the inner wall of the square groove. A slide block (15) is slidably connected in the limiting groove. One end of the circular cutter roller (10) is rotatably connected to the slide block (15). A screw (14) is rotatably connected to the top outer wall of the slide block (15). The screw (14) is threadedly connected to the bottom of the first frame (1). A throttle (13) is fixedly connected to the top of the screw (14). A second guide post (20) is fixedly connected to the top outer wall of the other slide block (15). One end of the second guide post (20) passes through the top of the second frame (2).

5. A quick-change blade device for a slitting machine according to claim 4, characterized in that, A through groove is provided on one side of the outer wall of the first frame (1), and a first guide post (16) is fixedly connected to the inner walls of the upper and lower sides of the through groove. A third guide cylinder (49) and a first guide cylinder (17) are fixedly connected to one side of the outer wall of the mounting plate (4) and the second connecting plate (18), respectively. The third guide cylinder (49) and the first guide cylinder (17) are both sleeved on the outer circumferential wall of the first guide post (16).

6. A quick-change blade device for a slitting machine according to claim 5, characterized in that, The transverse component includes a threaded screw (23) connected to the inner circumference of the spur gear (38). A threaded sleeve (25) is threadedly connected to the outer circumference of the threaded screw (23). A first sliding groove (22) is provided on one side of both the first frame (1) and the second frame (2). A sliding block is slidably connected inside the first sliding groove (22). A transverse seat (21) is fixedly connected to one side of the sliding block. The threaded screw (23) is rotatably connected to the inner walls of both sides of the transverse seat (21). A third guide post (24) is fixedly connected to the inner walls of both sides of the transverse seat (21). A second guide cylinder (26) is sleeved on the outer circumference of the third guide post (24). The second guide cylinder (26) is fixedly connected to the threaded sleeve (25). The side of the threaded sleeve (25) away from the second guide cylinder (26) is fixedly connected to the drive component.

7. A quick-change blade device for a slitting machine according to claim 6, characterized in that, The drive assembly includes a rotating seat (28) fixedly connected to the top outer wall of the threaded sleeve (25). A second motor (27) is fixedly connected to one side outer wall of the rotating seat (28). A rotating rod (29) is fixedly connected to the output end of the second motor (27). A driving wheel (32) is fixedly connected to the circumferential outer wall of the rotating rod (29). A transmission belt (33) is driven to the circumferential outer wall of the driving wheel (32). A driven wheel (37) is driven to the driving wheel (32) through the transmission belt (33). A connecting pipe (39) is fixedly connected to one side outer wall of the driven wheel (37). One end of the rotating shaft (36) is inserted into the inside of the connecting pipe (39).

8. A quick-change blade device for a slitting machine according to claim 7, characterized in that, The outer circumferential wall of the rotating shaft (36) is fixedly connected with a protrusion (48), and the outer circumferential wall of the connecting pipe (39) is provided with a slot (40), and the protrusion (48) cooperates with the slot (40).

9. A quick-change blade device for a slitting machine according to claim 8, characterized in that, The driven wheel (37) is fixedly connected to a second rotating column (41) on the side away from the connecting pipe (39), and the other end of the second rotating column (41) is rotatably connected to a side plate (30).

10. A quick-change blade device for a slitting machine according to claim 9, characterized in that, One end of the side plate (30) is fixedly connected to a horizontal plate (31), and both ends of the horizontal plate (31) are fixedly connected to the outer walls of both ends of the rotating seat (28).

Images