Coil diameter following cutting mechanism and cutting method

Abstract

The invention discloses a roll diameter following cutting mechanism and a cutting method.The roll diameter following cutting mechanism comprises a material roll supporting frame, a gantry support, a transverse moving linear module and a vertical linear module, and a cutter module is arranged at the output end of the vertical linear module; the cutter module comprises a cutter module bottom plate, a cutter driving device, a cutter lifting seat and a roll pressing roller, the cutter module bottom plate and the cutter driving device are arranged at the output end of the vertical linear module, and a waste cutter and a rotating swing rod are arranged on the cutter lifting seat; the rotary swing rod is limited to swing in the direction away from the waste cutter, and the free end of the rotary swing rod is provided with a stripping cutter used for stripping waste. According to the roll diameter following cutting mechanism and cutting method, the waste cutter can be controlled to ascend and descend through the cutter driving device, so that the purpose of finely adjusting the height of the waste cutter is achieved, the roll pressing roller always keeps the state of pressing the two sides of a roll when the waste cutter cuts waste, and the roll is prevented from rotating and the waste is prevented from scattering; and the cutting quality and the cutting efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery production, and particularly to a cutting mechanism and a cutting method with roll diameter following. Background Art

[0002] In the field of lithium battery production, after the coiled materials such as electrode foils are coated by a coating device, there are many waste electrode foils that do not meet the requirements and waste coiled materials such as the remaining tail materials after the use of the coiled materials. These waste coiled materials are wound on a reel, and only by the manual cutting method can the waste coiled materials on the reel be scraped off layer by layer to obtain an empty reel. However, the existing method of manually peeling off the waste coiled materials has the disadvantages of low efficiency, high labor cost, and high labor intensity. To overcome the above problems, some technical solutions propose a scheme of automatic cutting by a mechanism, that is, the waste is cut along the axial direction of the coiled material by automatically controlling the cutting knife. Although this automatic cutting method improves the efficiency, during the process of automatically cutting the waste along the axial direction of the coiled material by the cutting knife, on the one hand, the coiled material is prone to circumferential rotation, affecting the cutting accuracy, and on the other hand, the waste cut off on both sides of the coiled material is easily scattered, affecting the overall cutting efficiency.

[0003] Therefore, the purpose of the present invention is to provide a new technical solution to solve the existing technical problems. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a cutting mechanism and a cutting method with roll diameter following, which solve the technical problems that the coiled material is prone to circumferential rotation and the cut waste is scattered, affecting the normal cutting during the automatic cutting of the waste.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] A cutting mechanism and a cutting method with roll diameter following, including a coiled material support frame and a gantry support frame. A transverse linear module is arranged on the gantry support frame. The output end of the transverse linear module is provided with a vertical linear module. The output end of the vertical linear module is provided with a cutting knife module. The cutting knife module includes a cutting knife module bottom plate arranged at the output end of the vertical linear module and a cutting knife driving device, a cutting knife lifting seat, and a pressing roll arranged on the cutting knife module bottom plate. The output end of the cutting knife driving device is connected to the cutting knife lifting seat and is used to drive the cutting knife lifting seat to move up and down. A waste cutting knife is arranged on the cutting knife lifting seat.

[0007] As a further improvement of the above technical solution, a rotating swing rod is further arranged on the cutting knife lifting seat. The rotating swing rod is restricted to swing away from the waste cutting knife, and a peeling knife for peeling off the waste is arranged at the free end of the rotating swing rod.

[0008] As a further improvement of the above technical solution, a limit switch driving cylinder is provided on the cutter lifting seat, and a limit switch is provided at the output end of the limit switch driving cylinder.

[0009] As a further improvement of the above technical solution, the rotating swing rod is rotatably arranged on the cutter lifting seat through a bearing, and a limit block cooperating with the rotating swing rod is further provided on the cutter lifting seat. The limit block is used to limit the swinging of the rotating swing rod in a direction away from the waste cutter.

[0010] As a further improvement of the above technical solution, a limit adjusting rod is provided on the limit block, and a return spring is provided between the limit block and the rotating swing rod.

[0011] As a further improvement of the above technical solution, a coiling roller and a cutter lifting guide rail are further provided on the cutter module bottom plate. The coiling roller is used to roll the material coil, the cutter lifting seat is arranged on the cutter lifting guide rail, and the cutter driving device is used to drive the cutter lifting seat to move on the cutter lifting guide rail.

[0012] As a further improvement of the above technical solution, there are two coiling rollers, rotating swing rods, peeling knives, limit switch driving cylinders and limit switches, and they are symmetrically arranged on the cutter lifting seat.

[0013] As a further improvement of the above technical solution, mounting brackets are provided at both ends of the cutter module bottom plate. Coiling rollers are provided at both ends of each mounting bracket, and the coiling rollers at both ends of the same mounting bracket are used to correspondingly roll both sides of the material coil;

[0014] The coiling roller is installed on the mounting bracket through a connecting screw and a limit nut. A compression spring is sleeved on the connecting screw. The mounting bracket is slidably arranged on the connecting screw and its sliding position is limited by the limit nut. The compression spring is arranged between the mounting bracket and the coiling roller;

[0015] The mounting bracket is an arc-shaped mounting seat, and the two coiling rollers installed on the same mounting bracket are symmetrically inclined inwards.

[0016] As a further improvement of the above technical solution, the peeling knife is a dovetail groove-shaped peeling knife. The dovetail groove-shaped peeling knife has a convex rib inclined downwards. The two sides of the convex rib are inclined planes, and the inclined planes on both sides of the convex rib and the convex rib converge into a tip at the free end endpoint.

[0017] As a further improvement of the above technical solution, it further includes a matching waste trolley and a protective net plate. The waste trolley is located at the middle position of the material coil support frame, and there are three protective net plates which are arranged on the outer sides of the three sides of the gantry support.

[0018] The present invention also provides:

[0019] A cutting method for following the coil diameter. In this cutting method, a transverse linear module drives a cutter module to move transversely, so as to use a waste cutter in the cutter module to cut the waste on the coil.

[0020] During the process of the waste cutter cutting the waste, a vertical linear module drives the cutter module to lift and lower, so that the cutter module can lift and move adaptively to the change in the coil diameter.

[0021] A pressing roller is arranged on the cutter module, and during the process of the waste cutter cutting the waste, the pressing roller presses the side of the coil to prevent the cut waste from spreading.

[0022] A cutter driving device for driving the waste cutter to lift and lower is arranged in the cutter module, and the cutter driving device is used to control the lifting and lowering of the waste cutter, so that the waste cutter and the pressing roller can adapt to the arc change caused by the change in the coil diameter, and ensure that the pressing roller always presses against the side of the coil during the process of the waste cutter cutting the waste, to prevent the cut waste from spreading.

[0023] As a further improvement of the above technical solution: during the process of the transverse linear module driving the cutter module to perform a transverse reciprocating cutting motion, every time the waste cutter transversely cuts the waste on the coil, the vertical linear module drives the waste cutter and the pressing roller on the cutter module to descend by a preset height, and the preset height is the thickness of the waste cut by the waste cutter each time it transversely cuts; meanwhile, after the waste cutter descends by the preset height each time, the cutter driving device drives the waste cutter to rise by a preset micro height, to ensure that during the process of the waste cutter cutting the waste, the pressing roller always presses against the side of the coil.

[0024] The beneficial effects of the present invention are as follows: The present invention provides a cutting mechanism and a cutting method with roll diameter following. The cutting mechanism and the cutting method with roll diameter following are provided with a cutter module. The waste cutter on the cutter module cuts the waste on the reel, thereby realizing the automatic removal of waste. It has the advantages of high automation degree and high working efficiency. In practical applications, it can reduce the labor intensity of workers and the labor cost of enterprises, and effectively solve the technical problems such as low efficiency, high labor cost and large labor intensity existing in the prior art when manually peeling waste; during the process of the waste cutter cutting the waste on the reel, the entire cutter module is driven to lift and lower by a vertical linear module, so that the waste cutter can adapt to the height change caused by the change of the roll diameter during the waste removal process of the coil; the lifting and lowering of the waste cutter is controlled by a cutter driving device, so that the waste cutter can adapt to the arc change caused by the change of the roll diameter during the waste removal process of the coil, enabling the height of the waste cutter to follow the arc change of the roll diameter of the coil, ensuring that the pressing rollers always keep pressing on both sides of the coil during the process of the waste cutter cutting the waste, not only ensuring the stability of the coil, but also avoiding the scattered waste cut by the waste cutter from affecting the normal cutting, which helps to improve the cutting quality and cutting efficiency.

[0025] In summary, the cutting mechanism and the cutting method with roll diameter following solve the technical problems that the coil is prone to circumferential rotation during automatic waste cutting and the scattered cut waste affects normal cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the drawings and embodiments.

[0027] Figure 1 is an assembly schematic diagram of a cutting mechanism with roll diameter following in the present invention;

[0028] Figure 2 is an assembly schematic diagram of a cutting mechanism with roll diameter following after removing the protective mesh plate in the present invention;

[0029] Figure 3 is an assembly schematic diagram of the transverse linear module, the vertical linear module and the cutter module in the present invention;

[0030] Figure 4 is an assembly schematic diagram of the cutter module in the present invention;

[0031] Figure 5 is a schematic diagram of the cooperation between the large-diameter coil material and the small-diameter coil material before fine-tuning the waste cutter, the pressing rollers and the waste cutter in the present invention

[0032] Figure 6 is a schematic diagram of the cooperation between the large-diameter coil material and the small-diameter coil material after fine-tuning the waste cutter, the pressing rollers and the waste cutter in the present invention. Detailed implementation mode

[0033] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with embodiments and drawings, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work all belong to the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be combined interactively without conflicting with each other. Refer to Figure 1-6 .

[0034] Specifically refer to Figure 2 , Figure 4 , the present invention provides:

[0035] A cutting mechanism for following the coil diameter, which specifically includes a coil support frame 11 and a gantry support frame 12. Specifically, the coil support frame 11 includes two support rods, and the upper ends of the two support rods have concave positions, and the concave positions at the upper ends of the two support rods are used to support the coil 4 from which waste needs to be removed. During application, the two ends of the bobbin of the coil are correspondingly placed at the two concave positions. The gantry support frame 12 is a conventional gantry support frame. In other embodiments, other common support mechanisms can be used to replace the gantry support frame 12 in this embodiment when meeting the requirements.

[0036] Refer to Figure 3 , a transverse linear module 21 is arranged on the gantry support frame 12, and a vertical linear module 22 is arranged at the output end of the transverse linear module 21. Both the transverse linear module 21 and the vertical linear module 22 can adopt existing linear modules, and their driving methods include existing conventional driving methods such as motor screw rods, gear racks, synchronous belt assemblies, and sprocket assemblies. A cutter module 3 is arranged at the output end of the vertical linear module 22, and the cutter module 3 is an execution component for linearly cutting the waste on the bobbin. In this embodiment, after the coil 4 is placed, its axial direction is the same as the moving direction of the transverse linear module 21, and the moving direction of the vertical linear module 22 is perpendicular to the axial direction of the coil 4. After the mechanism starts to work, the cutter module 3 is driven by the transverse linear module 21 to move along the axial direction of the coil 4 to achieve the cutting function, and the cutter module 3 is driven by the vertical linear module 22 to move vertically to achieve the feeding function of the cutting depth.

[0037] Refer to Figure 3 , Figure 4, in terms of the specific structure, the cutter module 3 includes a cutter module base plate 31 arranged at the output end of the vertical linear module 22, a pressing and winding roller 32, a cutter driving device 33, and a cutter lifting guide rail 34 arranged on the cutter module base plate 31. A cutter lifting seat 35 is arranged on the cutter lifting guide rail 34. The output end of the cutter driving device 33 is connected to the cutter lifting seat 35 and is used to drive the cutter lifting seat 35 to move on the cutter lifting guide rail 34. In this embodiment, the cutter driving device 33 is a slide electric cylinder, and the slide of the slide electric cylinder is connected to the cutter lifting seat 35. In other embodiments, other existing driving devices can also be used as the cutter driving device in this technical solution under the condition of meeting the performance requirements. A waste cutter 36 and a rotating swing rod 37 are arranged on the cutter lifting seat 35. The rotating swing rod 37 is restricted from swinging away from the waste cutter 36, and a peeling knife 371 for peeling waste is arranged at the free end of the rotating swing rod 37. During application, the vertical linear module 22 drives the entire cutter module 3 to descend to a preset position, so that the pressing and winding rollers 32 on the cutter module 3 press the two sides of the material roll 4 to avoid the position movement of the material roll and ensure the success rate of cutting. Further, the entire cutter module 3 is driven to move horizontally by the horizontal translation linear module 21. During the horizontal movement of the cutter module 3, the waste cutter 36 cuts the outermost layer of foil material on the material roll 4. Synchronously, the cut waste is shoveled off by the peeling knife 371 to avoid the cut waste sticking to the material roll 4. After cutting the waste with a preset thickness each time, the slide cylinder drives the waste cutter 36 to descend a preset height, and then the next cutting work is performed. In this embodiment, the cutting depth of the waste cutter 36 each time is 3 mm. Since the lowest point of the tip of the peeling knife 371 is 1 mm higher than the lowest point of the blade, when the cutting depth of the blade of the waste cutter 36 is 3 mm, there will be an interference amount of 2 mm between the lowermost end of the peeling knife 371 and the material roll 4. When the cutter module 3 moves horizontally, the peeling knife 371 will move horizontally synchronously. In addition, some of the material rolls cut by the waste cutter 36 will stick to the next layer of the material roll, and the peeling knife 371 is required to peel the cutting point like plowing the field to play a peeling role. In this embodiment, the peeling knife 371 is a dovetail groove-shaped peeling knife. The dovetail groove-shaped peeling knife has a convex rib inclined downward, and both sides of the convex rib are inclined surfaces. The inclined surfaces on both sides of the convex rib converge to a tip at the free end of the convex rib. Setting the peeling knife 371 as a dovetail groove-shaped peeling knife enables the peeling knife 371 to more easily peel the waste and helps to improve the peeling efficiency.

[0038] In this technical solution, for each cutting of the waste with a preset depth by the cutter module 3, the vertical linear module 22 drives the entire cutter module 3 to descend by a height corresponding to the thickness of the waste.

[0039] Refer to Figure 4, in some embodiments, a limit switch driving cylinder 38 is provided on the cutter lifting seat 35, and a limit switch 381 is provided at the output end of the limit switch driving cylinder 38. During application, the limit switch 381 is a contact switch. After a cutting process is completed, the entire cutter module 3 extends beyond one end of the material roll 4. At this time, the output shaft of the corresponding limit switch driving cylinder 38 extends and drives the limit switch 381 to extend. The limit switch 38 detects whether it touches the empty bobbin core. Specifically, before the limit switch 38 touches the empty bobbin core, the mechanism continues to operate and continues to perform the work of cutting waste. When the limit switch 38 touches the empty bobbin core, the mechanism automatically stops running. Furthermore, the information detected by the limit switch 381 is used to control the automated operation of the entire mechanism, with a high degree of automation, adaptability to waste materials of different lengths and sizes, strong versatility, and high application flexibility.

[0040] Refer to Figure 4 , in this embodiment, the pressure roller 32, the rotary swing rod 37, the peeling knife 371, the limit switch driving cylinder 38 and the limit switch 381 are all provided in two and symmetrically arranged on the cutter lifting seat 35. Through the above-mentioned symmetrically arranged mechanism, the entire cutter module 3 can realize automated reciprocating motion in two directions, from left to right and from right to left, and complete the work of cutting waste during the reciprocating motion, which can reduce the ineffective stroke of the mechanism during work and thus improve work efficiency.

[0041] Refer to Figure 4, in some embodiments, the rotary swing rod 37 is rotatably arranged on the cutter lifting seat 35 through a bearing, and a limit block 39 cooperating with the rotary swing rod 37 is further arranged on the cutter lifting seat 35. The limit block 39 is used to limit the movement of the rotary swing rod 37 away from the waste cutter 36. A limit adjusting rod 391 is arranged on the limit block 39, and the limit position of the rotary swing rod 37 can be adjusted through the limit adjusting rod 391. A return spring 392 is arranged between the limit block 39 and the rotary swing rod 37. In specific applications, when the cutter module 3 reciprocates left and right, the rotary swing rods 37 and the stripping knives 371 on both left and right sides can both avoid interference and strip waste. Specifically, since the lowest point of the tip of the stripping knives 371 on both left and right sides is 1 mm higher than the lowest point of the blade, when the cutting depth at the blade position is 3 mm, there will be an interference amount of 2 mm for the stripping knives 371 on both left and right sides. When the cutter module 3 moves to the right, due to the position interference between the right rotary swing rod 37 and the coil material, the rotary swing rod 37 will overcome the elastic force of the return spring 392 and be bounced off by the coil material, and rotate clockwise along the flange. The coil material 4 begins to be cut by the blade, and some of the cut coil materials will adhere to the next layer of coil material. It is necessary for the stripping knife 371 on the left rotary swing rod 37 to peel off the cutting point like plowing the field. Due to the existence of the limit block 39, the left rotary swing rod 37 will not rotate clockwise along the flange, but is limited and fixed by the limit block 39, playing the role of stripping waste. After a set of cutting actions is completed, due to the reset traction of the return spring 392, the clockwise rotating rotary swing rod 37 on the right will return to its original position and be blocked by the limit block 39 to the initial position. When the cutter module 3 cuts to the left, the above process moves in the reverse direction, and the principle is the same. In this way, the rotary swing rod 37 and the stripping knife 371 play the role of both avoiding interference and stripping.

[0042] Refer to Figure 4, in some embodiments, mounting brackets 321 are provided at both ends of the base plate 31 of the cutter module 3. The pressing rollers 32 are provided at both ends of each mounting bracket 321. The pressing rollers 32 at both ends of the same mounting bracket 321 are used to roll and press both sides of the material roll 4 correspondingly. By providing the pressing rollers 32 at both ends, it can be ensured that when the cutter module 3 cuts to the left and to the right, there is always a corresponding set of pressing rollers 32 that can press the material roll 4 tightly, ensuring the cutting quality. The pressing rollers 32 are mounted on the mounting brackets 321 through connecting screws 322 and limit nuts. A compression spring 323 is sleeved on the connecting screw 322. The pressing rollers 32 are mounted through the combined structure of the connecting screw 322 and the compression spring 323, so that the pressing rollers 32 form a flexible mounting structure, which can better adapt to the position change of the material roll 4. In terms of the specific structure, the mounting bracket 321 is slidably provided on the connecting screw 322 and its sliding position is limited by the limit nut. The compression spring 323 is provided between the mounting bracket 321 and the pressing roller 32. During application, the distance between the mounting bracket 321 and the pressing roller 32 can be adjusted through the connecting screw 322 and the limit nut to adapt to different application requirements.

[0043] Refer to Figure 4 , Figure 5 , Figure 6 , in this embodiment, the mounting bracket 321 is an arc-shaped mounting seat, and the two pressing rollers 32 mounted on the same mounting bracket 321 are symmetrically inclined inward. During actual application, as the cutter module 3 continuously cuts layers of waste materials from the material roll 4, the diameter of the material roll 4 will become smaller and smaller. Since the position of the pressing roller 32 is fixed, the pressing rollers 32 with bilateral pressing cannot well adapt to the diameter change of the material roll 4, and the pressing rollers 32 are getting farther and farther away from the material roll 4 and cannot press the shrinking material roll 4. Specifically refer to Figure 5 , Figure 5 is a schematic diagram showing the cooperation between the large-diameter material roll 4 and the small-diameter material roll 4 before fine-tuning of the waste cutter 36, the pressing rollers 32, and the waste cutter 36. Figure 5 In, M is the large-diameter material roll 4, and N is the small-diameter material roll 4. In the initial state, the diameter state of the material roll is M. At this time, when the tip of the waste cutter 36 touches the material roll 4, the pressing rollers 32 can just press both sides of the material roll 4, ensuring that the waste materials on both sides will not spread, which helps to improve the cutting quality and efficiency. As the waste materials are peeled off layer by layer from the material roll, the diameter of the material roll 4 becomes smaller, as shown in Figure 5The coil 4 with a small coil diameter shown as N. At this time, when the tip of the waste cutter 36 reaches the cutting position of the coil 4, the coil pressing roller 32 cannot contact the coils on both sides, and there is a certain distance between the position of the coil pressing roller 32 and the outer wall of the coil 4. At this time, the cut waste is likely to become loose, thereby affecting the subsequent cutting efficiency and cutting quality. To solve this problem, in order to adapt to the change of the coil diameter and make the coil pressing roller 32 press the coil every time, by controlling the cutter driving device 33 to drive the waste cutter 36 to retract slightly each time, the fixed coil pressing roller 32 always contacts the coil to ensure the cutting quality. Since different diameters have different surface curvatures, when the diameter of the coil 4 changes, the surface curvature of the coil 4 changes. By adjusting the position of the waste cutter 36 relative to the coil pressing roller 32, different curvature radii can be adapted. Specifically, the entire cutter module 3 is driven by the vertical linear module 22 to move up and down to adapt to the coil diameter height, and the waste cutter 36 is driven by the cutter driving device 33 to expand and contract to adapt to different coil diameter curvatures. Specifically refer to Figure 6 , Figure 6 is a schematic diagram of the cooperation between the coil 4 with a large coil diameter and the coil 4 with a small coil diameter after the fine adjustment of the waste cutter 36, the coil pressing roller 32, and the waste cutter 36. Figure 6 In it, X is the coil 4 with a large coil diameter, and Y is the coil 4 with a small coil diameter. In the initial state, the coil diameter state of the coil is X. At this time, when the tip of the waste cutter 36 touches the coil 4, the coil pressing roller 32 can just press the coils on both sides of the coil 4, ensuring that the waste on both sides does not spread, which helps to improve the cutting quality and efficiency. As the waste is peeled off layer by layer from the coil, the diameter of the coil 4 becomes smaller, such as Figure 6 the coil 4 with a small coil diameter shown as Y in. At this time, the cutter driving device 33 is used to drive components such as the waste cutter 36 to move upward by a preset distance, so that when the tip of the waste cutter 36 reaches the cutting position of the coil 4, the coil pressing roller 32 can also synchronously contact the coils on both sides, and the coil pressing roller 32 presses on the outer wall of the coil 4. At this time, the stability of the entire coil 4 can be ensured, and the cut waste will not be loose, which helps to improve the cutting efficiency and cutting quality.

[0044] Refer to Figure 1 , in some embodiments, the cutting mechanism following the coil diameter further includes a waste cart 5 and a protective net plate 6 used in combination. The waste cart 5 is used to collect the shoveled waste, and the protective net plate 6 is used to improve the protection performance. Specifically, the waste cart 5 is located at the middle position of the coil support frame 11, and the protective net plate 6 has three pieces and is arranged outside the three sides of the gantry support 12. In addition, the entire cutting mechanism following the coil diameter further includes modules such as an electric box 7 used in combination, which is used to control the automatic operation of the mechanism. The electric box 7 is located inside the protective net plate 6 and behind the gantry support 12.

[0045] When the cutting mechanism with the entire roll diameter following is working, its specific process is as follows:

[0046] After fixing the material roll 4 on the material roll support frame 11, first, the horizontal linear module 21 drives the cutter module 3 to move to one end of the material roll (taking the left end as an example), then the vertical linear module 22 controls the cutter module 3 to descend to a preset height, and the material roll on both sides is tightly pressed by the pressing roll 32. Further, the horizontal linear module 21 drives the entire cutter module 3 to move to the right. During the process of the cutter module 3 moving to the right, the right rotating swing rod 37 and the peeling knife 371 swing clockwise to the left due to the interference of the material roll 4. Then, the waste cutter 36 cuts the coil material with a preset thickness on the material roll 4 from left to right. Further, the left rotating swing rod 37 and the peeling knife 371 are fixed in place due to the limitation of the left limiting block 39, and the left peeling knife 371 peels off the cut waste from the material roll 4 to prevent the cut waste from sticking to the material roll 4. Thus, the horizontal linear module 21 drives the waste cutter 36 to complete a waste cutting operation from left to right. Further, the vertical linear module 22 controls the cutter module 3 to descend to a preset cutting height. Synchronously, the cutter driving device 33 controls the waste cutter 36 and the peeling knife 371 to retract a preset distance, so that the waste cutter 36, the peeling knife 371, and the pressing roll 32 can adapt to the diameter change of the material roll. Further, the horizontal linear module 21 drives the cutter module 3 to move, and the above process is the same but in the opposite direction, completing the process of cutting waste from right to left. Thus, a cycle of cutting waste from left to right and then from right to left is formed. By continuously repeating the above cycle of cutting waste, automatic waste cutting can be achieved, greatly improving work efficiency, reducing labor intensity and labor costs.

[0047] See Figure 4 , during the process of the cutter module 3 reciprocating from left to right and from right to left, after each completion of a cutting process from left to right or from right to left, the limit switch driving cylinder 38 drives the limit switch 381 to descend a preset height. At this time, the mechanism will judge whether to continue working according to whether the limit switch 381 touches the core of the material cylinder. When the limit switch 381 fails to touch the core of the material cylinder, it means that there is still waste on the material cylinder that needs to be cut. At this time, the control system of the mechanism controls the entire mechanism to continue working; when the limit switch 381 has touched the core of the material cylinder, it means that all the waste on the material cylinder has been completely cut. At this time, the control system of the mechanism controls the mechanism to stop and replace the new material roll 4.

[0048] Based on the above cutting mechanism with roll diameter following, the present invention also provides:

[0049] A production line, the production line includes the above cutting mechanism with roll diameter following.

[0050] The above is a specific description of the preferred embodiment of the present invention. However, the present invention is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

[0051] The present invention also provides:

[0052] Referring to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 a cutting method for roll diameter following. The cutting method can be implemented by using the above-mentioned cutting mechanism for roll diameter following. Specifically:

[0053] The cutting method drives the cutter module 3 to move horizontally through the horizontal linear module 21 to cut the waste on the coil 4 by the waste cutter 36 in the cutter module 3;

[0054] During the process of the waste cutter 36 cutting the waste, the cutter module 3 is driven to lift and lower through the vertical linear module 22 so that the cutter module 3 can move up and down adaptively to the change in the diameter of the coil 4;

[0055] A coil pressing roller 32 is arranged on the cutter module 3, and during the process of the waste cutter 36 cutting the waste, the side of the coil 4 is pressed tightly by the coil pressing roller 32 to prevent the cut waste from spreading;

[0056] A cutter driving device 32 for driving the waste cutter 36 to lift and lower is arranged in the cutter module 3, and the waste cutter 36 is controlled to lift and lower by using the cutter driving device 32 so that the waste cutter 36 and the coil pressing roller 32 can adapt to the arc change caused by the change in the diameter of the coil 4, ensuring that the coil pressing roller 32 always presses against the side of the coil 4 during the process of the waste cutter 36 cutting the waste to prevent the cut waste from spreading.

[0057] Specifically, referring to Figure 5 、 Figure 6 During the process of driving the cutter module 3 to make a horizontal reciprocating cutting motion through the horizontal linear module 21, every time the waste cutter 36 horizontally cuts the waste on the coil 4, the waste cutter 36 and the coil pressing roller 32 on the cutter module 3 are driven by the vertical linear module 22 to descend a preset height, and the preset height is the thickness of the waste cut by the waste cutter 36 each time it horizontally cuts; at the same time, after the waste cutter 36 descends the preset height each time, the waste cutter 36 is driven by the cutter driving device 32 to rise a preset small height to ensure that during the process of the waste cutter 36 cutting the waste, the coil pressing roller 32 always presses against the side of the coil 4.

[0058] This cutting method drives the entire cutter module 3 to move up and down through the vertical linear module 22, so that the waste cutter 36 can adapt to the height change caused by the change in the coil diameter during the waste removal process of the coil 4; the lifting of the waste cutter 36 is controlled by the cutter driving device 33, so that the waste cutter 36 can adapt to the peripheral arc change caused by the change in the coil diameter during the waste removal process of the coil 4, enabling the height of the waste cutter 36 to change with the coil diameter and arc change of the coil 4, ensuring that the coil pressing rollers 32 always press on both sides of the coil 4 during the waste cutting process of the waste cutter 36, not only ensuring the stability of the coil 4, but also preventing the waste cut by the waste cutter from spreading and affecting the normal cutting process, which helps to improve the cutting quality and efficiency.

Claims

1. A cutting mechanism with coil diameter following, characterized in that: It includes a coil support frame (11) and a gantry support (12). A transverse linear module (21) is arranged on the gantry support (12). A vertical linear module (22) is arranged at the output end of the transverse linear module (21). A cutter module (3) is arranged at the output end of the vertical linear module (22). The cutter module (3) includes a cutter module base plate (31) arranged at the output end of the vertical linear module (22), a cutter driving device (33), a cutter lifting seat (35), and a coil pressing roller (32) arranged on the cutter module base plate (31). The output end of the cutter driving device (33) is connected to the cutter lifting seat (35) and is used to drive the cutter lifting seat (35) to move up and down. A waste cutter (36) is arranged on the cutter lifting seat (35).

2. The cutting mechanism with roll diameter following according to claim 1, characterized in that: A rotating swing rod (37) is further arranged on the cutter lifting seat (35). The rotating swing rod (37) is restricted to swing away from the waste cutter (36), and a stripping knife (371) for stripping waste is arranged at the free end of the rotating swing rod (37). The rotating swing rod (37) is restricted to swing away from the waste cutter (36), and a stripping knife (371) for stripping waste is arranged at the free end of the rotating swing rod (37).

3. The cutting mechanism with roll diameter following according to claim 2, characterized in that: A limit switch driving cylinder (38) is arranged on the cutter lifting seat (35), and a limit switch (381) is arranged at the output end of the limit switch driving cylinder (38).

4. A cutting mechanism with roll diameter following according to claim 2, characterized in that: The rotating swing rod (37) is rotatably arranged on the cutter lifting seat (35) through a bearing. A limit block (39) cooperating with the rotating swing rod (37) is further arranged on the cutter lifting seat (35). The limit block (39) is used to restrict the rotating swing rod (37) from swinging away from the waste cutter (36).

5. A cutting mechanism with roll diameter following according to claim 4, characterized in that: A limit adjusting rod (391) is arranged on the limit block (39), and a return spring (392) is arranged between the limit block (39) and the rotating swing rod (37).

6. The cutting mechanism with roll diameter following according to claim 2, characterized in that: A cutter lifting guide rail (34) is further arranged on the cutter module base plate (31). The coil pressing roller (32) is used to roll press the coil (4). The cutter lifting seat (35) is arranged on the cutter lifting guide rail (34). The cutter driving device (33) is used to drive the cutter lifting seat (35) to move on the cutter lifting guide rail (34).

7. The cutting mechanism with roll diameter following according to claim 6, characterized in that: There are two coil pressing rollers (32), rotating swing rods (37), stripping knives (371), limit switch driving cylinders (38), and limit switches (381), and they are symmetrically arranged on the cutter lifting seat (35).

8. A cutting mechanism with roll diameter following according to claim 1, characterized in that: Mounting frames (321) are arranged at both ends of the cutter module base plate (31). The coil pressing rollers (32) are arranged at both ends of each mounting frame (321). The coil pressing rollers (32) at both ends of the same mounting frame (321) are used to correspondingly roll press both sides of the coil (4). The coiling roller (32) is mounted on the mounting bracket (321) through a connecting screw (322) and a limit nut. A compression spring (323) is sleeved on the connecting screw (322). The mounting bracket (321) is slidably arranged on the connecting screw (322) and its sliding position is limited by the limit nut. The compression spring (323) is arranged between the mounting bracket (321) and the coiling roller (32). The mounting bracket (321) is an arc-shaped mounting seat, and the two coiling rollers (32) mounted on the same mounting bracket (321) are symmetrically inclined inwards.

9. A cutting mechanism with roll diameter following according to claim 2, characterized in that: The peeling knife (371) is a dovetail groove-shaped peeling knife. The dovetail groove-shaped peeling knife has a convex rib inclined downwards. The two sides of the convex rib are inclined planes, and the inclined planes on both sides of the convex rib and the convex rib converge into a tip at the free end.

10. The cutting mechanism with roll diameter following according to any one of claims 1-9, characterized in that: It further includes a waste car (5) and a protective net plate (6) for supporting use. The waste car (5) is located at the middle position of the coil support frame (11), and there are three protective net plates (6) which are arranged on the outer sides of the three sides of the gantry support (12).

11. A cutting method for following the coil diameter, characterized in that: The cutting method drives the cutter module (3) to move horizontally through the horizontal linear module (21) so as to use the waste cutter (36) in the cutter module (3) to cut the waste on the coil (4). During the process of the waste cutter (36) cutting the waste, the cutter module (3) is driven to move up and down through the vertical linear module (22) so that the cutter module (3) can move up and down adaptively to the change in the diameter of the coil (4). A coiling roller (32) is arranged on the cutter module (3), and during the process of the waste cutter (36) cutting the waste, the side part of the coil (4) is pressed tightly by the coiling roller (32) to prevent the cut waste from spreading. A cutter driving device (32) for driving the waste cutter (36) to move up and down is arranged in the cutter module (3), and the cutter driving device (32) is used to control the up and down movement of the waste cutter (36) so that the waste cutter (36) and the coiling roller (32) can adapt to the arc change caused by the change in the diameter of the coil (4), ensuring that the coiling roller (32) always presses against the side part of the coil (4) during the process of the waste cutter (36) cutting the waste to prevent the cut waste from spreading. During the process of the horizontal linear module (21) driving the cutter module (3) to perform a horizontal reciprocating cutting motion, every time the waste cutter (36) horizontally cuts the waste on the coil (4), the waste cutter (36) and the coiling roller (32) on the cutter module (3) are driven by the vertical linear module (22) to descend a preset height, and the preset height is the thickness of the waste cut by the waste cutter (36) each time it horizontally cuts. At the same time, after the waste cutter (36) descends the preset height each time, the waste cutter (36) is driven by the cutter driving device (32) to rise a preset micro-height, ensuring that during the process of the waste cutter (36) cutting the waste, the coiling roller (32) always presses against the side part of the coil (4).

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