A four-axis slitting machine

Abstract

This utility model relates to a four-axis slitting machine, comprising an unwinding device, a slitting device, a winding device, and a feeding device arranged sequentially from front to back, and a pressing and rolling device. The winding device is a double-layer, double-station winding structure, including a frame and two identical winding frames that can be rotated synchronously, one above the other, vertically mounted on the frame. Each winding frame includes two parallel winding shafts. The winding shaft closer to the slitting device is the winding shaft of the winding station, and the winding shaft farther from the slitting device is the winding shaft of the feeding station. The pressing and rolling device is located between the winding station of the winding device and the slitting device. There are two pressing and rolling devices, arranged vertically, each corresponding to one winding frame. Compared with the prior art, the pressing and rolling device of this utility model can cooperate with the two winding shafts respectively, achieving higher cooperation accuracy and adapting to more flexible production needs.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, and more specifically, to a four-axis slitting machine. Background Technology

[0002] In the field of flexible material processing, the rolling device of a slitting machine is a core component that ensures winding quality. The working state of the rolling device directly affects the tightness, flatness, and subsequent processing performance of the roll. However, existing slitting machines have significant technical defects in the design of the rolling device. Especially in dual-station or multi-station winding scenarios, the rolling device cannot precisely alternate with the winding station, becoming a key bottleneck restricting production efficiency and product quality.

[0003] Traditional slitting machines mostly employ a single-structure design for their rolling units, meaning one rolling unit corresponds to multiple winding stations, switching between different stations via a translational or flipping rolling mechanism. This design presents two major problems: First, the switching response is slow. When the take-up rack flips from one station to another, the roller needs to be readjusted to adapt to the new take-up station. During this process, brief pressure interruptions or deviations can easily occur between the roll and the roller, resulting in quality defects such as wrinkles and uneven edges. For example, in film processing, a pressure interruption of only 0.1 seconds can cause 2-3 meters of material to be scrapped. For high-speed slitting production lines (speeds can reach 300 meters / minute), the scrap rate per shift can increase by 15%-20%.

[0004] Secondly, the matching accuracy is insufficient. A single rolling device cannot simultaneously meet the parallelism requirements of the upper and lower winding frames, especially when there are differences in the winding diameter and material properties of the two winding frames, the rolling pressure cannot be accurately matched. For example, when processing 0.05mm thick aluminum foil and 0.2mm thick PET film, the required rolling pressure differs by 3-5 times. The fixed pressure setting of traditional equipment will cause the aluminum foil roll to be too tight and wrinkle, and the PET film roll to be too loose and slip between layers, which will easily lead to deformation or cracking in subsequent processing. To address the core issue of the inability of the pressing and rolling devices to work alternately, existing technologies have attempted to improve this by increasing the number of pressing and rolling units. However, since the two pressing and rolling units share a single drive mechanism and use gear linkage or synchronous belt transmission, they can only work synchronously and cannot operate independently. They also cannot be precisely linked with the winding frame, and collisions or excessive gaps between the pressing and rolling units are likely to occur during switching.

[0005] In actual production, the alternating operation defects of the rolling equipment can trigger a chain reaction. For example, in the lithium battery electrode slitting process, unstable rolling pressure can cause the interlayer alignment error of the electrode roll to exceed 0.3mm, requiring additional correction time in subsequent stacking processes and reducing battery assembly efficiency by 10%-15%. In the processing of medical packaging films, tension fluctuations during rolling switching can cause the film elongation deviation to exceed 2%, failing to meet the sealing requirements of aseptic packaging. Therefore, developing a four-axis slitting machine that can be equipped with a separate rolling device for each winding frame and achieve precise alternation between rolling and winding stations has become a key breakthrough in solving the defects of existing technologies and improving the processing quality and efficiency of flexible materials. Utility Model Content

[0006] The main purpose of this invention is to propose a four-axis slitting machine, in which each of the two take-up shafts has a corresponding independent pressing and rolling device.

[0007] To solve the above-mentioned technical problems, this utility model proposes a four-axis slitting machine, including an unwinding device, a slitting device, a winding device, a feeding device, and a pressing device arranged sequentially from front to back; the winding device is a double-layer, double-station winding structure, including a frame and two identical winding frames that can be rotated synchronously, one above the other, vertically mounted on the frame. Each winding frame includes two parallel winding shafts. The winding shaft closer to the slitting device is the winding shaft of the winding station, and the winding shaft farther from the slitting device is the winding shaft of the feeding station; the pressing device is located between the winding station of the winding device and the slitting device, and there are two of them, arranged vertically, each corresponding to one winding frame.

[0008] In the above technical solution, furthermore, one end of each of the two winding shafts on the winding frame is suspended, and the other end passes through a rotating disc mounted on the frame via a support shaft. A reversing gear is fixedly connected to each of the rotating discs on the two winding frames. The two reversing gears are driven by the same reversing motor to achieve synchronous rotation in the same direction. After the winding frame flips and reverses direction, the winding shaft of the winding station becomes the winding shaft of the unloading station, and the winding shaft of the unloading station becomes the winding shaft of the winding station. A transmission component is also provided on the support shaft of the supporting rotating disc. A winding component that cooperates with the transmission component is provided on the end of each of the two winding shafts that passes through the rotating disc. A clutch is provided in each winding component. The two support shafts are driven by the winding motor to achieve synchronous winding.

[0009] In any of the above technical solutions, the transmission component is a transmission pulley, and the winding component is a winding pulley.

[0010] In any of the above technical solutions, the pressing and rolling device further includes: a pressing and rolling device that cooperates with a winding shaft located at the winding station on the winding device to press the material; a pressing and rolling moving trolley that is driven to move by a pressing and rolling moving cylinder mounted on the frame; wherein the pressing and rolling devices are mounted on the pressing and rolling moving trolley via rocker arms, and the other end of the rocker arms is fixedly connected to the movable end of a pressing and rolling cylinder with a potential gauge that is fixedly mounted on the pressing and rolling moving trolley. The potential gauge has a preset zero position on the pressing and rolling cylinder, and the potential gauge and the pressing and rolling moving cylinder are linked for communication; a precision linear displacement sensor is also provided at the rear end of the pressing and rolling moving trolley.

[0011] In any of the above technical solutions, the pressing and rolling trolley further includes a symmetrically arranged left wall plate and a right wall plate, which are connected by a crossbeam. The left wall plate and the right wall plate are respectively slidably mounted on two parallel linear guide rails fixed on the frame of the winding device, and are respectively driven by pressing and rolling cylinders.

[0012] In any of the above technical solutions, furthermore, on the side of the winding device where the two winding shafts are suspended, a feeding support arm device is also provided. The feeding support arm device includes a support plate that can rotate according to the path of the winding shaft when it flips from the winding station to the feeding station, so that the winding shaft with the wound material is always supported when it is changed from the winding station to the feeding station. The feeding support arm device includes a support arm wall plate, on which a vertical guide rail is provided. A connecting plate that can move up and down along the vertical guide rail is provided on the vertical guide rail by a lifting drive mechanism. On the connecting plate, two brackets, one upper and one lower, corresponding to the positions of the two winding frames are fixedly connected. Each bracket is provided with a horizontal guide rail. The support plate is set on the horizontal guide rail and moves horizontally along the horizontal guide rail by a horizontal movement cylinder.

[0013] In any of the above technical solutions, the lifting drive mechanism further includes a base fixedly connected to the support arm wall panel and a lifting cylinder inverted on the base. The movable end of the lifting cylinder is fixedly connected to the base. An electric cylinder with its movable end facing upward is also fixedly connected to the lifting cylinder. The movable end of the electric cylinder is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is fixedly connected to a connecting plate.

[0014] In any of the above technical solutions, the unloading device further includes: a pushing mechanism, which includes a pushing trolley and two forks, one upper and one lower, mounted on it and perpendicular to the winding shafts at the two unloading stations. The forks are slidably connected to the pushing trolley via fork slide rails mounted on the pushing trolley and perpendicular to the winding shafts at the two unloading stations. The pushing trolley is also equipped with a translation cylinder for driving the forks to move along the fork slide rails; and an unloading mechanism, which includes a rotatable unloading frame and a tilting plate. The tilting plate can be tilted relative to the rotatable unloading frame in a vertical plane. The tilting plate is provided with two unloading rods corresponding to the two unloading stations. The rotatable unloading frame is driven to rotate by a rotary motor. The tilting plate is driven by an unloading tilting cylinder and can be tilted relative to the rotatable unloading frame in a vertical plane.

[0015] In any of the above technical solutions, a pedal is provided between the unwinding device and the slitting device, and a bottom channel connecting the unwinding device and the slitting device is provided below the pedal. The material is released from the unwinding device and extends into the slitting device through the bottom channel.

[0016] In any of the above technical solutions, a laser bracket is further provided on the frame of the winding device above the position corresponding to the unloading station, parallel to the winding shaft. A laser marker is provided on the laser bracket for marking the position on the winding shaft of the unloading station.

[0017] Beneficial effects: Compared with the prior art, the pressing and rolling device of this utility model can be matched with two take-up shafts respectively, which can achieve higher matching accuracy and adapt to more flexible production needs. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model with the outer shell removed; Figure 3 This is a structural schematic diagram of the transmission component and the tilting component of this utility model; Figure 4 This is a schematic diagram of the structure of the pressing and rolling device of this utility model; Figure 5 This is a schematic diagram of the structure of the material feeding support arm device of this utility model. Figure 6This is a schematic diagram of the internal structure of this utility model.

[0020] The annotations in the attached figures are explained as follows: 1. Unwinding device; 11. Pedal; 12. Bottom channel; 2. Slitting device; 3. Rewinding device; 31. Frame; 32. Rewinding frame; 321. Rewinding shaft; 322. Support shaft; 323. Tilting disc; 3231. Reversing gear; 324. Rewinding component; 3241. Rewinding pulley; 325. Transmission component; 3251. Transmission pulley; 33. Reversing motor; 4. Unloading device; 41. Pushing mechanism; 411. Fork; 412. Pushing trolley; 4121. Translation cylinder; 413. Fork slide rail; 42. Unloading mechanism; 421. Rotatable unloading frame; 422. Tilting plate; 423. Unloading rod; 42 4. Rotary motor; 425. Unloading tilting cylinder; 5. Pressing and rolling device; 51. Pressing and rolling; 511. Rocker arm; 512. Pressing and rolling cylinder; 52. Pressing and rolling moving trolley; 521. Left wall panel; 522. Right wall panel; 523. Crossbeam; 524. Linear guide rail; 525. Pressing and rolling moving cylinder; 6. Unloading support arm device; 61. Pallet; 62. Support arm wall panel; 63. Vertical guide rail; 64. Lifting drive mechanism; 641. Base; 642. Lifting cylinder; 643. Electric cylinder; 644. Connecting rod; 65. Connecting plate; 66. Bracket; 67. Horizontal guide rail; 68. Horizontal moving cylinder; 7. Laser bracket; 8. Laser marker. Detailed Implementation

[0021] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0023] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model proposes a four-axis slitting machine. The four-axis slitting machine of this application will be described in detail below through the following embodiments.

[0027] Example 1: like Figure 1-3 As shown, this embodiment proposes a four-axis slitting machine, including an unwinding device 1, a slitting device 2, a winding device 3, a feeding device 4, and a pressing and rolling device 5 arranged sequentially from front to back. The winding device 3 is a double-layer, double-station winding structure, including a frame 31 and two identical winding frames 32 that can be rotated synchronously, one above the other, vertically mounted on the frame 31. Each winding frame 32 includes two parallel winding shafts 321. The winding shaft 321 closer to the slitting device 2 is the winding shaft 321 of the winding station, and the winding shaft 321 farther away from the slitting device 2 is the winding shaft 321 of the feeding station. The pressing and rolling device 5 is located between the winding station of the winding device 3 and the slitting device 2. There are two of them, arranged vertically, each corresponding to one of the winding frames 32.

[0028] One end of each of the two take-up shafts 321 on the take-up frame 32 is suspended, and the other end passes through a tilting disc 323 mounted on the frame 31 via a support shaft 322. A reversing gear 3231 is fixedly connected to each of the tilting discs 323 on the two take-up frames 32. The two reversing gears 3231 are driven by the same reversing motor 33 to achieve synchronous and same-direction rotation. After the take-up frame 32 is tilted and reversed, the take-up shaft 321 of the take-up station becomes the material unloading station. The take-up shaft 321 of the unloading station becomes the take-up shaft 321 of the winding station; the support shaft 322 of the support tilting disk 323 is also provided with a transmission component 325; the end of each of the two take-up shafts 321 that passes through the tilting disk 323 is provided with a winding component 324 that cooperates with the transmission component 325; the winding component 324 is provided with a clutch; the two support shafts 322 are driven by a winding motor to achieve synchronous winding.

[0029] The device includes a robust frame 31 on which two identical winding frames 32 are vertically mounted, one above the other. Each winding frame 32 includes two parallel winding shafts 321. The winding shaft 321 closer to the slitting device 2 serves as the winding station, responsible for winding the material; the winding shaft 321 further away from the slitting device 2 serves as the unloading station, used for preparing unloaded material or supporting fully wound rolls. One end of each winding shaft 321 is suspended for loading and unloading rolls, while the other end passes through a rotating disc 323. The rotating disc 323 is connected to the frame 31 via a support shaft 322, allowing it to rotate freely. Each of the two rotating discs 323 is fixed with a reversing gear 3231. The two reversing gears 3231 are driven by the same reversing motor 33 and gear train, ensuring that the two winding frames 32 can rotate 180 degrees synchronously in the same direction. Once the roll of material at the winding station reaches the set size, the reversing motor 33 starts, driving the two winding frames 32 to rotate synchronously. After rotation, the winding shaft 321 at the original winding station, carrying the full roll of material, moves to the unloading station, while the empty winding shaft 321 at the original unloading station moves to the winding station, ready to receive and wind up the material. This process enables rapid switching between winding stations.

[0030] A transmission component 325 is provided on the support shaft 322 supporting the tilting disc 323. In this embodiment, a transmission pulley 3251 is preferred. A winding component 324 is provided at the end of each winding shaft 321 (the end passing through the tilting disc 323). In this embodiment, a winding pulley 3241 is preferred. The transmission pulley 3251 and the winding pulley 3241 are connected by a synchronous belt or chain. A clutch is integrated into the transmission component 325. By controlling the engagement and disengagement of the clutch, the power supply to each winding shaft 321 can be independently controlled. The two support shafts 322 are driven synchronously by a winding motor via a synchronous belt or chain. When a winding shaft 321 is in the winding position, its corresponding clutch engages, causing it to rotate and wind. When a winding shaft 321 is in the unloading position, the clutch disengages, the winding shaft 321 loses power, stops rotating, and facilitates unloading.

[0031] Two independent pressing and rolling devices 5 are set up, each corresponding to a winding station, which enables the two stations to work asynchronously, allowing the slitting machine to adapt to more flexible production needs. At the same time, independent control can avoid the impact of errors on the pressing and rolling devices 5 on the pressing effect.

[0032] Example 2: This embodiment is a further improvement based on Embodiment 1.

[0033] like Figure 2 , 6 As shown, in this embodiment, the pressing and rolling device 5 includes: a pressing roller 51, which cooperates with the winding shaft 321 located at the winding station on the winding device 3 to press the material; a pressing and rolling moving trolley 52, which is driven to move by a pressing and rolling moving cylinder 525 set on the frame 31; wherein, the pressing rollers 51 are all set on the pressing and rolling moving trolley 52 by rocker arms 511, and the other end of the rocker arms 511 is also fixedly connected to the movable end of the pressing and rolling cylinder 512 with a potential gauge fixedly set on the pressing and rolling moving trolley 52. ​​The potential gauge has a preset zero position on the pressing and rolling cylinder 512, and the potential gauge and the pressing and rolling moving cylinder 525 are in communication linkage; a precision linear displacement sensor is also provided at the rear end of the pressing and rolling moving trolley 52. The pressing and rolling trolley 52 includes a symmetrically arranged left wall plate 521 and a right wall plate 522. The left wall plate 521 and the right wall plate 522 are connected by a crossbeam 523. The left wall plate 521 and the right wall plate 522 are respectively slidably mounted on two parallel linear guide rails 524 fixed on the frame 31 of the winding device 3, and are respectively driven by the pressing and rolling cylinder 525.

[0034] The rolling device 5 includes a rolling trolley 52, which consists of symmetrically arranged left and right wall plates 521 and 522, and a crossbeam 523 connecting them, forming a stable overall structure. The bottom of the left and right wall plates of the rolling trolley 52 are slidably mounted on two linear guide rails 524 fixed to the frame 31. The movement of the rolling trolley 52 is driven by a rolling cylinder 525, allowing it to move back and forth along the linear guide rails 524 to approach or move away from the take-up shaft 321. The rolling pin 51 is hinged to the rolling trolley 52 via a rocker arm 511. The other end of the rocker arm 511 is hinged to the movable rod of the rolling cylinder 512, and the cylinder body of the rolling cylinder 512 is fixedly mounted on the rolling trolley 52. ​​The rolling cylinder 512 integrates a potential gauge (linear displacement sensor) for accurately detecting the extension position of the cylinder piston rod. The potential gauge has a preset zero position (the position where the rolling pin 51 just contacts the surface of the coil). The rolling cylinder 525 is linked to the potentiometer. The control system dynamically controls the forward and backward movement of the rolling cylinder 525 based on the real-time position feedback from the potentiometer, thus maintaining a constant pressure on the material roll from the rolling cylinder 51 as the roll diameter increases. A precision linear displacement sensor is also installed at the rear end of the rolling carriage 52 to detect the carriage's position. This sensor complements and calibrates the potentiometer signal, ensuring control accuracy.

[0035] Example 3: This embodiment is a further improvement based on any of the above embodiments.

[0036] like Figure 5 , 6 As shown, in this embodiment, On the side of the winding device 3 where the two winding shafts 321 are suspended, a feeding support arm device 6 is also provided. The feeding support arm device 6 includes a support plate 61 that can rotate in accordance with the path of the winding shafts 321 when they are flipped from the winding station to the feeding station, so that the winding shafts 321 with the wound material are always supported when they are changed from the winding station to the feeding station. The feeding support arm device 6 includes a support arm wall plate 62, on which the support arm wall plate 62 is provided. A vertical guide rail 63 is provided, and a connecting plate 65, driven by a lifting drive mechanism 64, is provided on the vertical guide rail 63 and can move up and down along the vertical guide rail 63. Two supports 66, one above the other, corresponding to the positions of the two winding frames 32, are also fixedly connected to the connecting plate 65. Each support 66 is provided with a horizontal guide rail 67. The pallet 61 is disposed on the horizontal guide rail 67 and moved horizontally along the horizontal guide rail 67 by a horizontal moving cylinder 68. The lifting drive mechanism 64 includes a base 641 fixedly connected to the support arm wall panel 62 and a lifting cylinder 642 inverted on the base 641. The movable end of the lifting cylinder 642 is fixedly connected to the base 641. An electric cylinder 643 with its movable end facing upward is also fixedly connected to the lifting cylinder 642. The movable end of the electric cylinder 643 is rotatably connected to one end of a connecting rod 644, and the other end of the connecting rod 644 is fixedly connected to the connecting plate 65.

[0037] The unloading support arm device 6 is located on the side of the winding shaft 321 of the winding device 3 that is suspended in the air. Its function is to support the full roll of material that is flipped from the winding station to the unloading station, preventing the winding shaft 321 from sagging or deforming due to gravity. The support arm wall plate 62, as the main body, is provided with a vertical guide rail 63. The bracket 66 is driven by the lifting drive mechanism 64 to move up and down along the vertical guide rail 63. The lifting drive mechanism 64 includes a base 641 fixed on the support arm wall plate 62, and a lifting cylinder 642 invertedly mounted on the base 641, with its push rod connected to the base 641. An electric cylinder 643 (electric push rod) is fixedly installed on the cylinder body of the lifting cylinder 642, with the movable end of the electric cylinder 643 facing upward. The movable end of the electric cylinder 643 is hinged to the bracket 66 through a connecting rod 644. Through the precise extension and retraction of the electric cylinder 643, the bracket 66 and the entire support arm on it can be driven to smoothly and finely adjust the lifting and lowering to adapt to different roll diameters. A horizontal guide rail 67 is mounted on the bracket 66, and the tray 61 is mounted on the horizontal guide rail 67 and driven by a horizontal moving cylinder 68. It can move along the horizontal guide rail 67 toward or away from the take-up shaft 321, and can cooperate with the take-up shaft 321 more flexibly.

[0038] When the take-up frame 32 is about to flip, the pallet 61 extends under the take-up shaft 321 under the drive of the horizontal cylinder; during the flipping process, the lifting drive mechanism 64 controls the pallet 61 to follow the shape of the preset flipping path (that is, to lift and translate in accordance with the arc trajectory of the take-up shaft 321, always supporting the material roll; after the flipping is completed, the full roll is stably placed at the unloading position and supported by the pallet 61, waiting to be unloaded.

[0039] Example 4: This embodiment is a further improvement based on any of the above embodiments.

[0040] like Figure 2 , 6 As shown, in this embodiment, the unloading device 4 includes a pushing mechanism 41, which includes a pushing trolley 412 and two forks 411, one above the other, mounted on it and perpendicular to the winding shaft 321 at the two unloading stations. The forks 411 are slidably connected to the pushing trolley 412 via fork slide rails 413 mounted on it and perpendicular to the winding shaft 321 at the two unloading stations. The pushing trolley 412 is also equipped with a translation cylinder 4121 for driving the material. The shift fork 411 moves along the shift fork slide rail 413; the unloading mechanism 42 includes a rotatable unloading frame 421 and a flipping plate 422, the flipping plate 422 can be flipped relative to the rotatable unloading frame 421 in the vertical plane, and the flipping plate 422 is provided with two unloading rods 423 corresponding to the two unloading stations; wherein, the rotatable unloading frame 421 is driven to rotate by a rotary motor 424; the flipping plate 422 is driven by an unloading flipping cylinder 425 and can be flipped relative to the rotatable unloading frame 421 in the vertical plane.

[0041] The unloading device 4 is used to push the wound material roll off the unloading station. The pushing trolley 412 is equipped with two forks 411, one above the other, corresponding to a take-up shaft 321. Driven by the translation cylinder 4121, the forks 411 can move away from or near the take-up shaft 321 along the fork slide rail 413 to accommodate different roll diameters. Driven by a motor, the pushing trolley 412 moves parallel to the take-up shaft 321 towards the unloading mechanism 42, pushing the roll away from the unloading station and returning to the starting position. The unloading mechanism 42 includes a rotatable unloading frame 421, which can rotate horizontally under the drive of a rotary motor 424. A tilting plate 422 is hinged to the unloading frame 421. The tilting plate 422 is driven by an unloading tilting cylinder 425 and can tilt vertically. Two unloading rods 423 corresponding to the upper and lower stations are provided on the tilting plate 422. After the unloading device 4 pushes the rolled material onto the unloading rod 423, the rotary motor 424 drives the rotatable unloading frame 421 to rotate so that the end of the unloading rod 423 is offset from the end of the rotary shaft of the unloading station, providing space for unloading. The unloading tilting cylinder 425 drives the tilting plate 422 to move from vertical to horizontal, lowering the height of the upper unloading rod 423 and raising the height of the lower unloading rod 423, making unloading more convenient.

[0042] Example 5: This embodiment is a further improvement based on any of the above embodiments.

[0043] like Figure 1 , 2 As shown, in this embodiment, A foot pedal 11 is provided between the unwinding device 1 and the slitting device 2. Below the foot pedal 11 is a bottom channel 12 connecting the unwinding device 1 and the slitting device 2. Material is released from the unwinding device 1 and extends into the slitting device 2 through the bottom channel 12. The foot pedal 11 between the unwinding device 1 and the slitting device 2 facilitates operator access and maintenance. Operators do not need to stop the machine or unload the material; they can observe the operation of the unwinding and slitting mechanisms simply by standing above the foot pedal 11, which also allows for operation in more complex environments.

[0044] Example 6: This embodiment is a further improvement based on any of the above embodiments.

[0045] like Figure 2 , 6 As shown, in this embodiment, A laser bracket 7 is mounted on the frame 31 of the winding device 3, parallel to the winding shaft 321 above the position corresponding to the unloading station. A laser marker 8 is mounted on the laser bracket 7 to mark the position on the winding shaft 321 at the unloading station. When the winding shaft 321 is rotated to the unloading station, the laser marker 8 can project a mark onto the end face of the roll to accurately locate the edge position of the roll, facilitating operator observation of whether the roll size is acceptable. The embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A four-axis slitting machine, characterized in that, It includes an unwinding device (1), a slitting device (2), a winding device (3), a feeding device (4), and a pressing device (5) arranged in sequence from front to back; The winding device (3) is a double-layer, double-station winding structure, including a frame (31) and two identical winding frames (32) that can be rotated synchronously, which are vertically mounted on the frame (31). Each winding frame (32) includes two parallel winding shafts (321). The winding shaft (321) closer to the slitting device (2) is the winding shaft (321) of the winding station, and the winding shaft (321) farther away from the slitting device (2) is the winding shaft (321) of the unloading station. The pressing and rolling device (5) is located between the winding station of the winding device (3) and the slitting device (2). There are two of them, arranged vertically, each corresponding to one of the winding frames (32).

2. The four-axis slitting machine according to claim 1, characterized in that, One end of each of the two take-up shafts (321) on the take-up frame (32) is suspended in the air, and the other end passes through a rotating disk (323) mounted on the frame (31) via a support shaft (322). A reversing gear (3231) is fixedly connected to each of the rotating disks (323) on the two take-up frames (32). The two reversing gears (3231) are driven by the same reversing motor (33) to achieve synchronous rotation in the same direction. After the winding frame (32) is flipped and reversed, the winding shaft (321) of the winding station becomes the winding shaft (321) of the unloading station, and the winding shaft (321) of the unloading station becomes the winding shaft (321) of the winding station. The support shaft (322) of the support rotating disk (323) is also provided with a transmission component (325). The two winding shafts (321) are provided with a winding component (324) that cooperates with the transmission component (325) at one end of each winding shaft (321) that passes through the rotating disk (323). The winding component (324) is provided with a clutch. The two support shafts (322) are driven by a winding motor to achieve synchronous winding.

3. The four-axis slitting machine according to claim 2, characterized in that, The transmission component (325) is a transmission pulley (3251), and the winding component (324) is a winding pulley (3241).

4. The four-axis slitting machine according to claim 1, characterized in that, The pressing device (5) includes: The pressing roller (51) cooperates with the winding shaft (321) located at the winding station on the winding device (3) to press the material; The pressing and rolling trolley (52) is driven to move by a pressing and rolling cylinder (525) mounted on the frame (31); The pressing rollers (51) are all mounted on the pressing roller moving carriage (52) via rocker arms (511). The other end of the rocker arms (511) is also fixedly connected to the movable end of the pressing roller cylinder (512) with a potential gauge, which is fixedly mounted on the pressing roller moving carriage (52). The potential gauge has a preset zero position on the pressing roller cylinder (512). The potential gauge and the pressing roller moving cylinder (525) are in communication linkage. A precision linear displacement sensor is also provided at the rear end of the pressing roller moving carriage (52).

5. The four-axis slitting machine according to claim 4, characterized in that, The pressing and rolling moving trolley (52) includes a left wall plate (521) and a right wall plate (522) arranged symmetrically. The left wall plate (521) and the right wall plate (522) are connected by a crossbeam (523). The left wall plate (521) and the right wall plate (522) are respectively slidably mounted on two parallel linear guide rails (524) fixed on the frame (31) of the winding device (3) and are respectively driven by the pressing and rolling moving cylinder (525).

6. The four-axis slitting machine according to claim 1, characterized in that, On the side of the winding device (3) where the two winding shafts (321) are suspended, a feeding support arm device (6) is also provided. The feeding support arm device (6) includes a support plate (61) that can rotate according to the path of the winding shaft (321) when it is flipped from the winding station to the feeding station, so that the winding shaft (321) with the wound material is always supported when it is changed from the winding station to the feeding station. The unloading support arm device (6) includes a support arm wall plate (62), a vertical guide rail (63) is provided on the support arm wall plate (62), a connecting plate (65) is provided on the vertical guide rail (63) and can move up and down along the vertical guide rail (63) driven by a lifting drive mechanism (64), and two brackets (66) corresponding to the positions of the two winding frames (32) are fixedly connected to the connecting plate (65), one above the other. Each bracket (66) is provided with a horizontal guide rail (67), and the pallet (61) is set on the horizontal guide rail (67) and moves horizontally along the horizontal guide rail (67) driven by a horizontal moving cylinder (68).

7. The four-axis slitting machine according to claim 6, characterized in that, The lifting drive mechanism (64) includes a base (641) fixedly connected to the support arm wall panel (62) and a lifting cylinder (642) inverted on the base (641). The movable end of the lifting cylinder (642) is fixedly connected to the base (641). An electric cylinder (643) with its movable end facing upward is also fixedly connected to the lifting cylinder (642). The movable end of the electric cylinder (643) is rotatably connected to one end of a connecting rod (644), and the other end of the connecting rod (644) is fixedly connected to the connecting plate (65).

8. The four-axis slitting machine according to claim 1, characterized in that, The feeding device (4) includes: The material pushing mechanism (41) includes a material pushing trolley (412) and two forks (411) arranged thereon, one above the other, perpendicular to the winding shaft (321) on the two unloading stations. The forks (411) are slidably connected to the material pushing trolley (412) via a fork slide rail (413) arranged on the material pushing trolley (412) perpendicular to the winding shaft (321) on the two unloading stations. The material pushing trolley (412) is also provided with a translation cylinder (4121) for driving the forks (411) to move along the fork slide rail (413). The unloading mechanism (42) includes a rotatable unloading frame (421) and a flip plate (422). The flip plate (422) can be flipped relative to the rotatable unloading frame (421) in the vertical plane. The flip plate (422) is provided with two unloading rods (423) corresponding to the two unloading stations. The rotatable unloading rack (421) is driven to rotate by a rotary motor (424); the flipping plate (422) is driven by an unloading flipping cylinder (425) and can flip relative to the rotatable unloading rack (421) in the vertical plane.

9. The four-axis slitting machine according to claim 1, characterized in that, A pedal (11) is provided between the unwinding device (1) and the slitting device (2). A bottom channel (12) connecting the unwinding device (1) and the slitting device (2) is provided below the pedal (11). The material is released from the unwinding device (1) and extends into the slitting device (2) through the bottom channel (12).

10. The four-axis slitting machine according to claim 2, characterized in that, A laser bracket (7) is provided on the frame (31) of the winding device (3) above the position corresponding to the unloading station, parallel to the winding shaft (321). A laser marker (8) is provided on the laser bracket (7) for marking the position on the winding shaft (321) at the unloading station.

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