Coiled material cutting mechanism and production line
By designing a roll material cutting mechanism, the automatic cutting of waste material is achieved using a cutting module and a rotating swing arm. This solves the problems of low efficiency, high cost, and poor cutting consistency in the cutting of waste roll materials in lithium battery production, thereby improving production efficiency and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-31
AI Technical Summary
The current lithium battery production process suffers from low efficiency, high labor costs, poor cutting consistency, and high labor intensity in cutting waste rolls. Furthermore, manual cutting methods are difficult to meet the needs of automated production.
Design a roll material cutting mechanism, including a roll support frame, a gantry support, a horizontal linear module, a vertical linear module, and a cutting module. The waste material is automatically cut off by the waste cutting blade, rotating swing arm, and peeling blade on the cutting module. Limit switches and pressure rollers are used to ensure cutting consistency and adapt to changes in roll diameter.
It has enabled automated removal of waste materials, improved work efficiency, reduced labor intensity and labor costs, and met the needs of automated production.
Smart Images
Figure CN224067683U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of lithium battery production, especially a coiled material cutting mechanism and production line. BACKGROUND
[0002] In the field of lithium battery production, after the coiled material such as pole piece is coated by the coating equipment, there are many waste materials such as pole piece waste material and tail material left after the use of coiled material, which do not meet the requirements. These waste materials are wound on the winding drum, and can only be cut layer by layer by manual cutting to remove the waste material on the winding drum to obtain an empty winding drum. However, the existing manual waste material stripping method has the disadvantages of low efficiency, high labor cost and high labor intensity, and the manual cutting method of waste material is prone to problems such as inconsistent cutting depth and inconsistent cutting path, and the cutting consistency is poor, which further increases the difficulty of cutting waste material and further reduces the work efficiency, and does not meet the demand of automatic production. Therefore, it is urgent to provide a new technical scheme to solve the existing technical defects. SUMMARY
[0003] In order to overcome the shortcomings of the prior art, the utility model provides a coiled material cutting mechanism and production line, which solves the technical problems of low efficiency, high labor cost, poor cutting consistency and high labor intensity in the existing manual waste material stripping.
[0004] The technical scheme adopted by the utility model to solve its technical problems is:
[0005] A coiled material cutting mechanism, comprising a material roll support frame and a gantry support, a horizontal movement linear module is arranged on the gantry support, a vertical linear module is arranged at the output end of the horizontal movement linear module, a cutter module is arranged at the output end of the vertical linear module, the cutter module comprises a cutter module bottom plate arranged at the output end of the vertical linear module, a cutter driving device and a cutter lifting seat arranged on the cutter module bottom plate, the output end of the cutter driving device is connected to the cutter lifting seat and is used to drive the cutter lifting seat to move up and down, a waste cutter and a rotary swing rod are arranged on the cutter lifting seat, the rotary swing rod is limited to swing away from the waste cutter, and a stripping cutter is arranged at the free end of the rotary swing rod.
[0006] As a further improvement of the above technical scheme, a limit switch driving cylinder is arranged on the cutter lifting seat, and a limit switch is arranged at the output end of the limit switch driving cylinder.
[0007] As a further improvement of the above technical scheme, the rotating swing rod is rotatably arranged on the cutter lifting seat through a bearing, and a limiting block matched with the rotating swing rod is further arranged on the cutter lifting seat, and the limiting block is used for limiting the swing of the rotating swing rod away from the waste cutter.
[0008] As a further improvement of the above technical scheme, a limiting adjusting rod is arranged on the limiting block, and a return spring is arranged between the limiting block and the rotating swing rod.
[0009] As a further improvement of the above technical scheme, a roll pressing roller and a cutter lifting guide rail are further arranged on the cutter module bottom plate, the roll pressing roller is used for rolling the roll, the cutter lifting seat is arranged on the cutter lifting guide rail, and the cutter driving device is used for driving the cutter lifting seat to move on the cutter lifting guide rail.
[0010] As a further improvement of the above technical scheme, the roll pressing roller, the rotating swing rod, the stripping knife, the limiting switch driving cylinder and the limiting switch all have two and are symmetrically arranged on the cutter lifting seat.
[0011] As a further improvement of the above technical scheme, mounting frames are arranged at two ends of the cutter module bottom plate, the mounting frames are both provided with the roll pressing rollers, and the roll pressing rollers at two ends of the same mounting frame are used for rolling two sides of the roll.
[0012] The roll pressing roller is installed on the mounting frame through a connecting screw rod and a limiting nut, a compression spring is sleeved on the connecting screw rod, the mounting frame is slidingly arranged on the connecting screw rod and the sliding position of the mounting frame is limited through the limiting nut, and the compression spring is arranged between the mounting frame and the roll pressing roller.
[0013] The mounting frame is an arc-shaped mounting seat, and the two roll pressing rollers installed on the same mounting frame are symmetrically inwardly inclined.
[0014] As a further improvement of the above technical scheme, the stripping knife is a dovetail groove-shaped stripping knife, the dovetail groove-shaped stripping knife has an inclined downward protruding rib, the two sides of the protruding rib are inclined surfaces, and the inclined surfaces on the two sides of the protruding rib converge into a sharp end at the free end of the protruding rib.
[0015] As a further improvement of the above technical scheme, a waste trolley and a protective mesh plate are further included, the waste trolley is located at the middle position of the roll support frame, and the protective mesh plate has three and is arranged outside three sides of the gantry support.
[0016] The utility model further provides:
[0017] A production line, the production line includes the roll cutting mechanism. A production line, the production line includes the roll cutting mechanism.
[0018] The utility model discloses a beneficial effect is: the utility model provides a kind of roll material cutting mechanism and production line, this kind of roll material cutting mechanism and production line are provided with cutter module, waste cutter on cutter module is cut to the waste on roll, the waste that is cut open is peeled off from roll by rotating swing bar and stripping knife, to realize the automatic cutting work of waste, with high degree of automation, work efficiency higher advantage, when practical application can reduce the labor intensity of worker and artificial cost of enterprise, effectively solve the technical problems, such as low efficiency, high artificial cost, great labor intensity, when stripping waste by artificial in prior art.
[0019] Above all, this kind of roll material cutting mechanism and production line solve the technical problems, such as low efficiency, high artificial cost, cutting consistency is poor, great labor intensity, when stripping waste by artificial. BRIEF DESCRIPTION OF DRAWINGS
[0020] The utility model is further described below in connection with drawings and embodiment.
[0021] Figure 1 It is the assembly schematic view of a kind of roll material cutting mechanism in the utility model;
[0022] Figure 2 It is the assembly schematic view of a kind of roll material cutting mechanism in the utility model after removing protective screen plate;
[0023] Figure 3 It is the assembly schematic view of horizontal moving linear module, vertical linear module and cutter module in the utility model;
[0024] Figure 4 It is the assembly schematic view of cutter module in the utility model;
[0025] Figure 5 It is the cooperation schematic view of large roll diameter roll material and small roll diameter roll material and pressure roll roller, waste cutter before fine adjustment of waste cutter in the utility model
[0026] Figure 6 It is the cooperation schematic view of large roll diameter roll material and small roll diameter roll material and pressure roll roller, waste cutter after fine adjustment of waste cutter in the utility model. DETAILED DESCRIPTION
[0027] The utility model discloses a concept, specific structure and the technical effect produced of the utility model will be clearly and completely described below in combination with the embodiment and the drawing, to fully understand the purpose, features and effect of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, and not all embodiments, on the basis of the embodiment of the utility model, the other embodiment obtained by the person skilled in the art without paying creative labor, all belong to the scope of the utility model protection. In addition, all the connection / connection relations involved in the patent do not mean that the components directly connect, but can be composed of a better connection structure by adding or reducing the connection auxiliary parts according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined without mutual contradiction and conflict. With reference to Figures 1-6 .
[0028] With reference to Figure 2 、 Figure 4 , the utility model provides:
[0029] A roll cutting mechanism, which specifically comprises a roll support frame 11 and a gantry support 12. Specifically, the roll support frame 11 comprises two support rods, the upper ends of the two support rods are provided with recesses, and the recesses at the upper ends of the two support rods are used to support a roll 4 that needs to be cut off. In application, the two ends of the roll barrel of the roll are placed in the two recesses correspondingly. The gantry support 12 is a conventional gantry support. In other embodiments, other common support mechanisms can also be used to replace the gantry support 12 in the embodiment as needed.
[0030] With reference to Figure 3 , the gantry support 12 is provided with a horizontal linear module 21, the output end of the horizontal linear module 21 is provided with a vertical linear module 22, and the horizontal linear module 21 and the vertical linear module 22 can both adopt an existing linear module, and the driving modes thereof include a motor screw, a gear and rack, a synchronous belt assembly, a chain wheel assembly and other existing conventional driving modes. The output end of the vertical linear module 22 is provided with a cutter module 3, and the cutter module 3 is an execution component for cutting off the waste on the roll barrel. In the embodiment, after the roll 4 is placed, the axial direction thereof is the same as the moving direction of the horizontal linear module 21, and the moving direction of the vertical linear module 22 is perpendicular to the axial direction of the roll 4. After the mechanism starts to work, the cutter module 3 is driven by the horizontal linear module 21 to move along the axial direction of the roll 4 to realize the cutting function, and the cutter module 3 is driven by the vertical linear module 22 to move vertically to realize the feeding function of the cutting depth.
[0031] With reference to Figure 3 、 Figure 4In the specific structure, the cutter module 3 includes a cutter module bottom plate 31 arranged at the output end of the vertical linear module 22, a roll pressing roller 32, a cutter driving device 33, and a cutter lifting guide rail 34 arranged on the cutter module bottom plate 31. The cutter lifting guide rail 34 is provided with a cutter lifting seat 35, and the output end of the cutter driving device 33 is connected to the cutter lifting seat 35 and used to drive the cutter lifting seat 35 to move on the cutter lifting guide rail 34. In the embodiment, the cutter driving device 33 is a sliding table electric cylinder, and the sliding table of the sliding table electric cylinder is connected to the cutter lifting seat 35. In other embodiments, other existing driving devices can be used as the cutter driving device in the technical solution as long as the performance requirements are met. The cutter lifting seat 35 is provided with a waste cutter 36 and a rotary swing rod 37, the rotary swing rod 37 is limited to swing away from the waste cutter 36, and the free end of the rotary swing rod 37 is provided with a stripping knife 371 used to strip the waste. In application, the vertical linear module 22 drives the entire cutter module 3 to descend to a preset position, so that the roll pressing roller 32 on the cutter module 3 presses the two sides of the material roll 4 to avoid the 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 linear module 21, and in the horizontal movement process of the cutter module 3, the waste cutter 36 cuts the outermost layer of foil on the material roll 4. At the same time, the stripped waste is removed by the stripping knife 371 to avoid the adhesion of the cut waste on the material roll 4. After cutting the waste of a preset thickness each time, the sliding table cylinder drives the waste cutter 36 to descend by a preset height, and then performs the next cutting work. In the embodiment, the cutting depth of the waste cutter 36 is 3 mm each time, and since the tip of the stripping 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 is an interference of 2 mm between the lowest end of the stripping knife 371 and the material roll 4. The stripping knife 371 moves horizontally synchronously when the cutter module 3 moves horizontally. In addition, the material roll cut by the waste cutter 36 is sometimes adhered to the next layer of material roll, and the stripping knife 371 needs to strip the cutting point like plowing the field to play a stripping role. In the embodiment, the stripping knife 371 is a dovetail groove-shaped stripping knife, which has an inclined downward convex ridge, and the two sides of the convex ridge are inclined surfaces. The two inclined surfaces of the convex ridge converge into a tip at the free end. The stripping knife 371 is arranged in the dovetail groove-shaped stripping knife, so that the stripping knife 371 can more easily strip the waste, which helps to improve the stripping efficiency.
[0032] In the technical solution, the vertical linear module 22 drives the entire cutter module 3 to descend by a height corresponding to the thickness of the waste after the cutter module 3 cuts the waste by a preset depth.
[0033] Reference Figure 4In some embodiments, the cutting knife lifting seat 35 is provided with a limit switch driving cylinder 38, and the output end of the limit switch driving cylinder 38 is provided with a limit switch 381. In application, the limit switch 381 is a contact switch. After completing a cutting process, the entire cutting knife module 3 exceeds one end of the material roll 4, at which time the output shaft of the corresponding limit switch driving cylinder 38 is extended and drives the limit switch 381 to extend, and the limit switch 381 detects whether it contacts the empty roll core. Specifically, before the limit switch 381 does not contact the empty roll core, the mechanism continues to operate and continuously performs the cutting waste work, and after the limit switch 381 contacts the empty roll core, the mechanism automatically stops operating. Further, the information detected by the limit switch 381 is used to control the automatic operation of the entire mechanism, which has high automation degree, can adapt to waste materials of different lengths and sizes, has high versatility and application flexibility.
[0034] Referring to Figure 4 In the present embodiment, the roll pressing roller 32, the rotary swing lever 37, the stripping knife 371, the limit switch driving cylinder 38 and the limit switch 381 all have two and are symmetrically arranged on the cutting knife lifting seat 35. Through the above-mentioned symmetrically arranged mechanism, the automatic reciprocating motion of the entire cutting knife module 3 from left to right and from right to left can be realized, and the cutting of waste materials is completed during the reciprocating motion, which can reduce the invalid stroke of the mechanism during operation and further improve the work efficiency.
[0035] Referring to Figure 4In some embodiments, the rotating swing rod 37 is rotatably arranged on the cutter lifting seat 35 through a bearing, and a limiting block 39 matched with the rotating swing rod 37 is arranged on the cutter lifting seat 35, which is used to limit the movement of the rotating swing rod 37 away from the waste cutter 36. A limiting adjusting rod 391 is arranged on the limiting block 39, by which the limiting position of the rotating swing rod 37 can be adjusted, and a return spring 392 is arranged between the limiting block 39 and the rotating swing rod 37. In specific applications, when the cutter module 3 moves back and forth, the rotating swing rods 37 and the stripping knives 371 on both sides can avoid position and strip the waste material. Specifically, since the lowest point of the tip of the stripping knife 371 on both sides is 1 mm higher than the lowest point of the blade, when the cutting depth of the blade is 3 mm, the stripping knives 371 on both sides will have an interference of 2 mm. When the cutter module 3 moves to the right, the rotating swing rod 37 on the right will be repelled by the material roll due to the position interference with the material roll, and will rotate clockwise along the flange. The material roll 4 starts to be cut by the blade, and some of the cut material roll will be adhered to the next layer of material roll, which needs the stripping knife 371 on the left rotating swing rod 37 to strip the cutting point like plowing. Due to the existence of the limiting block 39, the rotating swing rod 37 on the left will not rotate clockwise along the flange, but will be limited and fixed by the limiting block 39, and will play a role in stripping the waste material. After a group of cutting actions is completed, the rotating swing rod 37 on the right which rotates clockwise will return to the original position due to the return traction of the return spring 392, and will be blocked to the initial position by the limiting block 39. When cutting to the left of the cutter module 3, the above process moves reversely, and the principle is the same. In this way, the rotating swing rod 37 and the stripping knife 371 play a role of both avoiding position and stripping.
[0036] Referring to Figure 4In some embodiments, the cutter module base plate 31 is provided with mounting frames 321 at both ends, and the mounting frames 321 are provided with the roll pressing rollers 32 at both ends. The roll pressing rollers 32 at both ends of the same mounting frame 321 are used to press the two sides of the roll 4. The roll pressing rollers 32 provided at both ends can ensure that when the cutter module 3 cuts to the left and right, a corresponding set of roll pressing rollers 32 can press the roll 4 tightly to ensure the cutting quality. The roll pressing roller 32 is installed on the mounting frame 321 through a connecting screw 322 and a limiting nut. A compression spring 323 is sleeved on the connecting screw 322. The roll pressing roller 32 is installed through the combination of the connecting screw 322 and the compression spring 323, so that the roll pressing roller 32 forms a flexible mounting structure, which can better adapt to the position change of the roll 4. In the specific structure, the mounting frame 321 is slidingly arranged on the connecting screw 322 and the sliding position thereof is limited by the limiting nut. The compression spring 323 is arranged between the mounting frame 321 and the roll pressing roller 32. In application, the distance between the mounting frame 321 and the roll pressing roller 32 can be adjusted through the connecting screw 322 and the limiting nut to adapt to different application requirements.
[0037] Referring to Figure 4 , Figure 5 , Figure 6 In the present embodiment, the mounting frame 321 is an arc-shaped mounting seat, and the two roll pressing rollers 32 mounted on the same mounting frame 321 are symmetrically and inwardly arranged. In actual application, as the cutter module 3 continuously cuts the waste material layer by layer from the roll 4, the diameter of the roll 4 becomes smaller and smaller. Since the positions of the roll pressing rollers 32 are fixed, the roll pressing rollers 32 pressed from both sides cannot well adapt to the diameter change of the roll 4. The roll pressing rollers 32 are farther and farther away from the roll 4 and cannot press the smaller roll 4. For details, refer to Figure 5 , Figure 5 is a schematic view of the cooperation between the roll 4 with a large roll diameter and the roll 4 with a small roll diameter before the fine adjustment of the waste cutter 36 and the roll pressing roller 32 and the waste cutter 36. Figure 5 In the initial state, the roll diameter of the roll 4 is M. At this time, when the tip of the waste cutter 36 contacts the roll 4, the roll pressing roller 32 can just press the roll 4 on both sides, so that the waste material on both sides is not scattered, which helps to improve the cutting quality and efficiency. As the waste material is peeled off from the roll layer by layer, the diameter of the roll 4 becomes smaller, such as Figure 5The small-diameter roll 4 of the material roll 4 in FIG. 8. At this time, when the cutting tip of the waste cutter 36 reaches the cutting position of the material roll 4, the pressing roller 32 cannot contact the material roll on both sides, and there is a certain distance between the position of the pressing roller 32 and the outer wall of the material roll 4. At this time, the cut waste is prone to loosen, thereby affecting the cutting efficiency and quality. In order to solve this problem, in order to adapt to the change of the roll diameter, the pressing roller 32 can press the material roll each time. By controlling the cutter driving device 33 to drive the waste cutter 36 to retract a small amount each time, the fixed pressing roller 32 is always in contact with the material roll, thereby ensuring the cutting quality. Because different diameters have different surface radii, when the diameter of the material roll 4 changes, the surface radius of the material roll 4 changes. By adjusting the position of the waste cutter 36 relative to the pressing roller 32, different curvature radii can be adapted. Specifically, the vertical linear module 22 drives the entire cutter module 3 to move up and down to adapt to the roll diameter height of the material roll, and the cutter driving device 33 drives the waste cutter 36 to extend and retract to adapt to different roll diameter radii. For details, see Figure 6 , Figure 6 is a schematic view of the cooperation between the large-diameter roll 4 and the small-diameter roll 4 of the waste cutter 36 and the pressing roller 32 and the waste cutter 36. Figure 6 In FIG. 8, X is a large-diameter material roll 4, and Y is a small-diameter material roll 4. In the initial state, the roll diameter of the material roll is X. At this time, when the cutting tip of the waste cutter 36 contacts the material roll 4, the pressing roller 32 can just press the material roll 4 on both sides, thereby ensuring that the waste on both sides will not be loose, which helps to improve the cutting quality and efficiency. As the waste is peeled off from the material roll layer by layer, the diameter of the material roll 4 becomes smaller, as shown in FIG. 8Y, which is a small-diameter material roll 4. Figure 6 In FIG. 8Y, which is a small-diameter material roll 4. At this time, the cutter driving device 33 drives the waste cutter 36 and other components to move upward by a predetermined distance, so that when the cutting tip of the waste cutter 36 reaches the cutting position of the material roll 4, the pressing roller 32 can also contact the material roll on both sides synchronously, so that the pressing roller 32 presses the outer wall of the material roll 4. At this time, the stability of the entire material roll 4 can be ensured, and the cut waste will not be loose, which helps to improve the cutting efficiency and quality.
[0038] For details, see Figure 1 In some embodiments, the roll cutting mechanism further comprises a waste trolley 5 and a protective mesh plate 6 used in conjunction. The waste trolley 5 collects the cut waste, and the protective mesh plate 6 improves the protection performance. Specifically, the waste trolley 5 is located at the middle position of the material roll support frame 11, and the protective mesh plate 6 has three parts and is arranged on the outer side of the three sides of the gantry support 12. In addition, the entire roll cutting mechanism further comprises a matched electric box 7 and other modules for controlling the automatic operation of the mechanism. The electric box 7 is located inside the protective mesh plate 6 and at the rear side of the gantry support 12.
[0039] The whole roll cutting mechanism works, and its specific process is as follows:
[0040] After the roll 4 is fixed on the roll support frame 11, first, the transverse linear module 21 drives the cutter module 3 to move to one end of the 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 roll is pressed on both sides by the roll pressing roller 32. Further, the transverse linear module 21 drives the whole cutter module 3 to move to the right, and in the process of moving to the right, the right rotary swing rod 37 and the stripping knife 371 swing clockwise to the left due to the interference of the roll 4. Then the waste cutter 36 cuts the roll 4 on the roll 4 to a preset thickness from left to right, further, the left rotary swing rod 37 and the stripping knife 371 are fixed immovably due to the limiting of the limiting block 39 on the left, and the stripping knife 371 on the left peels off the cut waste from the roll 4, so as to avoid the cut waste from adhering to the roll 4. At this time, the transverse linear module 21 drives the waste cutter 36 to complete a waste cutting work from left to right. Further, the vertical linear module 22 controls the cutter module 3 to descend to a preset cutting height, and synchronously, the cutter driving device 33 controls the waste cutter 36 and the stripping knife 371 to retract by a preset distance, so that the waste cutter 36, the stripping knife 371 and the roll pressing roller 32 can adapt to the diameter change of the roll. Further, the transverse linear module 21 drives the cutter module 3 to move, and the above process is consistent and opposite in direction, and the waste cutting process from right to left is completed. At this time, the waste cutting process from left to right and from right to left is formed, and the above waste cutting process is repeated, so that the automatic waste cutting can be realized, the work efficiency is greatly improved, and the labor intensity and labor cost are reduced.
[0041] Referring to Figure 4 In the reciprocating working process of the cutter module 3 from left to right and from right to left, after completing the cutting process from left to right or from right to left once, the limiting switch driving cylinder 38 drives the limiting switch 381 to descend by a preset distance, at this time, whether the limiting switch 381 contacts the roll core is used to judge whether the mechanism continues to work. When the limiting switch 381 fails to contact the roll core, it means that there is still waste on the roll to be cut, at this time, the control system of the mechanism controls the whole mechanism to continue to work, and when the limiting switch 381 has contacted the roll core, it means that all the waste on the roll has been cut, at this time, the control system of the mechanism controls the mechanism to stop working and replace a new roll 4.
[0042] Based on the above roll cutting mechanism, the utility model also provides:
[0043] A production line, the production line comprises the roll cutting mechanism.
[0044] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A web cut-off mechanism characterized by: Including material roll support frame (11) and gantry support (12), the gantry support (12) is provided with horizontal moving linear module (21), the output end of horizontal moving linear module (21) is provided with vertical linear module (22), the output end of vertical linear module (22) is provided with cutter module (3), cutter module (3) includes the cutter module bottom plate (31) of the output end of vertical linear module (22) and the cutter driving device (33) of the cutter module bottom plate (31), cutter lifting seat (35), the output end of cutter driving device (33) is connected to cutter lifting seat (35) and is used to drive cutter lifting seat (35) to move up and down, cutter lifting seat (35) is provided with waste cutter (36) and rotary swing lever (37), rotary swing lever (37) is limited to swing away from waste cutter (36) and its free end end is provided with stripping knife (371) for stripping waste.
2. A web cut-off mechanism according to claim 1 wherein: The cutter lifting seat (35) is provided with a limit switch driving cylinder (38), and the output end of the limit switch driving cylinder (38) is provided with a limit switch (381).
3. A web cut-off mechanism according to claim 1 wherein: The rotary swing lever (37) is rotatably arranged on the cutter lifting seat (35) through a bearing, and a limit block (39) matched with the rotary swing lever (37) is further arranged on the cutter lifting seat (35), and the limit block (39) is used to limit the rotary swing lever (37) to swing away from the waste cutter (36).
4. A web cut-off mechanism according to claim 3 wherein: The limit block (39) is provided with a limit adjusting rod (391), and a return spring (392) is arranged between the limit block (39) and the rotary swing lever (37).
5. A web cut-off mechanism according to claim 2 wherein: The cutter module bottom plate (31) is further provided with a roll pressing roller (32) and a cutter lifting guide rail (34), the roll pressing roller (32) is used to roll the material roll (4), the cutter lifting seat (35) is arranged on the cutter lifting guide rail (34), and the cutter driving device (33) is used to drive the cutter lifting seat (35) to move on the cutter lifting guide rail (34).
6. A web cutting mechanism according to claim 5, wherein: The roll pressing roller (32), the rotary swing lever (37), the stripping knife (371), the limit switch driving cylinder (38) and the limit switch (381) all have two and are symmetrically arranged on the cutter lifting seat (35).
7. A web cutting mechanism according to claim 6, wherein: Both ends of the cutter module bottom plate (31) are provided with mounting frames (321), both ends of the mounting frame (321) are provided with the roll pressing roller (32), and the roll pressing rollers (32) at both ends of the same mounting frame (321) are used to roll the material roll (4) on both sides. The roll pressing roller (32) is installed on the mounting frame (321) through a connecting screw (322) and a limiting nut, the connecting screw (322) is sleeved with a compression spring (323), the mounting frame (321) is slidably arranged on the connecting screw (322) and the sliding position thereof is limited by the limiting nut, and the compression spring (323) is arranged between the mounting frame (321) and the roll pressing roller (32). The mounting frame (321) is an arc-shaped mounting seat, and the two roll pressing rollers (32) mounted on the same mounting frame (321) are symmetrically inwardly inclined.
8. A web cut-off mechanism according to claim 1 wherein: The peeling knife (371) is a dovetail groove-shaped peeling knife, which has an inclined downward ridge, and the two sides of the ridge are inclined surfaces, and the two sides of the ridge and the ridge converge into a sharp end at the free end.
9. A web cutting mechanism according to any one of claims 1 to 8, wherein: The waste trolley (5) is located at the middle position of the roll support frame (11), and the protective mesh plate (6) has three pieces and is arranged on the outer sides of the three sides of the gantry support (12).
10. A production line, characterized in that, The production line comprises the roll cutting mechanism according to any one of claims 1-9.