Insulating film cutting device

Abstract

This utility model relates to the technical field of insulating film processing equipment, specifically to an insulating film cutting device. The device includes a frame, one end of which is equipped with a roller frame for releasing the insulating film to be cut via a drive mechanism. The other end of the frame is equipped with a gripper for pulling the cut insulating film via a traction mechanism. The insulating film forms a conveying path as it moves between the roller frame and the gripper. The upper part of the frame is respectively equipped with a tensioning component, a cutting component, and an anti-warping component positioned above the conveying path. A sensor facing the conveying path is arranged on the upper part of the frame; the sensor is used to detect whether the gripper has grasped the cut insulating film.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating film processing equipment, specifically to an insulating film cutting device. Background Technology

[0002] Insulating film is widely used in the transformer industry. During its processing, it often needs to be cut to a fixed length and transferred to a designated station. Traditional insulating film cutting equipment usually includes an unwinding mechanism, a traction mechanism, and a cutting mechanism. The traction mechanism pulls the insulating film to the cutting station for cutting, and then the clamps remove the cut insulating film.

[0003] However, in actual operation, due to the softness of the insulating film and its susceptibility to electrostatic adsorption or positional shift, the grippers may fail to successfully grasp the cut insulating film. If the system fails to recognize this failure in time, the grippers will continue to run idle, leading to reduced production efficiency and preventing the completion of the insulating film transfer task.

[0004] More seriously, if the cut insulating film is not successfully clamped away and remains at the cutting position, subsequent insulating films to be cut will continue to be fed in, causing the old and new insulating films to overlap. This not only affects the accuracy of subsequent cutting but may also lead to the insulating film being cut a second time, resulting in material waste, product defects, or even equipment failure. Utility Model Content

[0005] To address the issues of clamping failure leading to empty runs after insulating film cutting, and residual film overlapping with subsequent film materials causing secondary cutting, this invention provides an insulating film cutting device. By setting sensors to detect the clamping status and cooperating with tensioning, cutting, anti-warping, and traction mechanisms, it avoids empty runs of the clamping jaws and prevents secondary cutting due to overlapping of insulating film, thus ensuring continuous production and product quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an insulating film cutting device, including a frame, one end of which is provided with a roller frame for releasing the insulating film to be cut through a driving mechanism, and the other end of which is provided with a gripper for pulling the cut insulating film through a traction mechanism. The insulating film forms a conveying path during its movement between the roller frame and the gripper. The upper part of the frame is respectively provided with a tensioning component, a cutting component and an anti-warping component placed on the upper part of the conveying path. A sensor facing the conveying path is arranged on the upper part of the frame. The sensor is used to detect whether the gripper has gripped the cut insulating film.

[0007] The aforementioned insulating film cutting device includes a traction mechanism comprising rodless cylinders spaced apart on the upper part of the frame on both sides of the conveying path. A plate frame driven by the rodless cylinder is arranged on the upper part of the rodless cylinder. Multiple dual-axis cylinders facing the conveying path are spaced apart at one end of the plate frame. Grippers for clamping the cut insulating film are arranged at both ends of the dual-axis cylinders.

[0008] The aforementioned insulating film cutting device includes a tensioning assembly comprising swing arms that rotate around a frame and are spaced apart. A pressure roller is horizontally placed between the swing arms to press down on the insulating film to be cut along the conveying path. A damper is arranged on the upper part of the frame to buffer the swing speed of the swing arms.

[0009] The aforementioned insulating film cutting device includes a first shaft rotatably connected to a frame. Multiple cams are spaced apart on the upper part of the first shaft. Slide rails are arranged on the upper part of the frame on both sides of the conveying path. Die-cutting molds are spaced apart inside the slide rails and distributed on the upper and lower sides of the insulating film. The die-cutting molds are connected to the cams by connecting rods.

[0010] The aforementioned insulating film cutting device comprises an upper die placed on the upper part of the insulating film and a lower die placed on the lower part of the insulating film. The cams are divided into an upper cam that drives the upper die to rise and fall and a lower cam that drives the lower die to rise and fall. The upper cam and the lower cam are arranged side by side in a non-concentric manner to realize the opening and closing operation between the upper die and the lower die.

[0011] In the aforementioned insulating film cutting device, the die can be equipped with a die holder connected to the connecting rod, and the die can be detachably connected to the upper part of the die holder.

[0012] The aforementioned insulating film cutting device includes an anti-warping component comprising a pressing cylinder positioned on the upper part of the frame with its free end facing the conveying path, wherein the free end of the pressing cylinder is connected to a pressure plate that vertically presses the insulating film.

[0013] In the aforementioned insulating film cutting device, the pressure plate is divided into a static pressure plate and a dynamic pressure plate arranged at intervals. The static pressure plate is connected to the free end of the pressing cylinder, and the dynamic pressure plate is placed directly below the static pressure plate, with both ends connected by guide rods with springs.

[0014] The aforementioned insulating film cutting device includes a driving mechanism comprising a second shaft rotatably connected to a frame, with a wound insulating film arranged on the upper part of the second shaft, and a motor for driving the second shaft to rotate arranged on the upper part of the frame.

[0015] In the aforementioned insulating film cutting device, multiple rollers for stretching the insulating film are also arranged at intervals on the upper part of the frame between the tensioning component and the cutting component, and the insulating film is wound around the surface of the multiple rollers.

[0016] The beneficial effects of this utility model are: 1. Effectively avoids empty runs and missed inspections: By setting up sensors to detect the gripper's gripping status in real time, gripping failures can be detected immediately, effectively avoiding empty runs of the gripper and improving production efficiency and operational reliability.

[0017] 2. Preventing film overlap and secondary cutting: By promptly identifying and handling insulating films that were not successfully clipped away, the risk of them remaining at the cutting station is fundamentally prevented, thus avoiding overlap with subsequent film materials and secondary cutting, and ensuring product quality.

[0018] 3. Improved cutting and transfer stability: The tensioning component, anti-warping component, and traction mechanism work together to ensure the flatness and stability of the insulating film during the conveying, cutting, and transfer process, thereby improving cutting accuracy and transfer success rate.

[0019] 4. The structure is reasonable and easy to maintain: the cutting assembly uses a cam linkage 56 to drive the upper and lower cutting dies, ensuring reliable operation; the detachable die design facilitates replacement and maintenance; the traction mechanism uses rodless cylinders and dual-axis cylinders, providing stable clamping and high transfer efficiency. The entire device has a compact layout and a high degree of automation. Attached Figure Description

[0020] The present invention will be further described below with reference to the embodiments and examples.

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0022] Figure 2 This is a side view of the structure of an embodiment.

[0023] Figure 3 This is a schematic diagram of the drive mechanism.

[0024] Figure 4 This is a schematic diagram of the traction mechanism.

[0025] Figure 5 This is a schematic diagram of the tensioning assembly.

[0026] Figure 6 This is a schematic diagram of the trimming component.

[0027] Figure 7 This is a schematic diagram of the sensor structure.

[0028] Figure 8 This is a structural diagram of the anti-warping component.

[0029] In the diagram: 1. Frame; 2. Drive mechanism; 21. Roller frame; 22. Second shaft; 23. Motor; 3. Traction mechanism; 31. Gripper; 32. Rodless cylinder; 33. Plate frame; 34. Dual-axis cylinder; 4. Tensioning assembly; 41. Swing arm; 42. Pressure roller; 43. Damper; 5. Cutting assembly; 51. First shaft; 52. Cam; 53. Slide rail; 54. Die; 55. Cutter holder; 56. Connecting rod; 6. Anti-warping assembly; 61. Pressing cylinder; 62. Pressure plate; 7. Sensor. Detailed Implementation

[0030] This invention provides an insulating film cutting device, which aims to solve the problems in the prior art where the gripper 31 may fail to grip, resulting in empty running, and the insulation film remaining after cutting, causing overlapping and secondary cutting.

[0031] like Figure 1-8 As shown, the insulating film cutting device includes a frame 1. One end of the frame 1 is equipped with a roller frame 21 for releasing the insulating film to be cut, via a drive mechanism 2. The other end of the frame 1 is equipped with a gripper 31 for pulling the cut insulating film, via a traction mechanism 3. After the insulating film is drawn out from the roller frame 21, it is pulled by the gripper 31, forming a conveying path between them.

[0032] On the upper part of the frame 1, along the conveying path, a tensioning assembly 4, a cutting assembly 5, and an anti-warping assembly 6 are sequentially arranged. These components work together to ensure the flatness and precision of the insulating film during conveying, cutting, and transfer. In addition, a sensor 7 facing the conveying path is also arranged on the upper part of the frame 1. This sensor 7 is directly opposite the position where the cut insulating film is clamped, and is used to detect in real time whether the gripper 31 has successfully clamped the cut insulating film.

[0033] The sensor 7 is electrically connected to a control system. To achieve the detection and control functions, the system typically includes a signal conditioning circuit for preprocessing (e.g., filtering, amplification) the sensor 7 signal, a programmable logic controller (PLC) or industrial computer for logical judgment and instruction issuance, and an actuator drive module for driving the cylinders and motors 23. These auxiliary components, together with the sensor 7, constitute a complete detection and feedback control loop. It should be noted that the aforementioned components used for detection, signal processing, logic control, and drive, such as the sensor 7, PLC, signal conditioning circuit, and drive module, are all mature existing technologies in the field. The specific hardware selection, circuit design, and programming methods are conventionally selected and implemented by those skilled in the art based on specific requirements for detection accuracy, response speed, and control complexity from existing technology libraries. The innovation of this utility model lies in the creative application of the sensor 7 and its control system to the insulating film cutting device with the specific structure described above. By detecting the gripping state of the gripper 31 and logically interlocking it with the cutting and transfer processes, a specific technical problem is solved, rather than improving the control components or the program itself.

[0034] In a preferred embodiment, the traction mechanism 3 includes rodless cylinders 32 spaced apart on the upper part of the frame 1 on both sides of the conveying path. A plate frame 33 driven by the rodless cylinders 32 is arranged on the upper part of each rodless cylinder 32. Multiple biaxial cylinders 34 facing the conveying path are spaced apart at one end of the plate frame 33. Each biaxial cylinder 34 has grippers 31 at both ends for clamping the edges of the cut insulating film. This structure allows the grippers 31 to firmly clamp both sides of the insulating film and, driven by the rodless cylinders 32, stably transfer the cut film to the next station.

[0035] The tensioning assembly 4 includes swing arms 41 that rotate around the frame 1 and are spaced apart. A pressure roller 42 is placed horizontally between the two swing arms 41, pressing down on the insulating film to be cut along the conveying path. The pressure roller 42 applies appropriate pressure to the passing insulating film by its own weight or additional force. To stabilize the swing of the swing arms 41 and avoid impact, a damper 43 is also arranged on the upper part of the frame 1 to buffer the swing speed of the swing arms 41.

[0036] The cutting assembly 5 includes a first shaft 51 rotatably connected to the frame 1. Multiple cams 52 are spaced apart on the upper part of the first shaft 51. Slide rails 53 are arranged on the upper part of the frame 1 on both sides of the conveying path. Cutting dies 54, distributed on the upper and lower sides of the insulating film, are spaced apart inside the slide rails 53. The cutting dies 54 are connected to the cams 52 via connecting rods 56. When the first shaft 51 rotates, the cams 52 drive the cutting dies 54 to slide within the slide rails 53 via the connecting rods 56, thereby cutting the insulating film.

[0037] Furthermore, the cutting die 54 is divided into an upper cutting die 54 positioned above the insulating film and a lower cutting die 54 positioned below the insulating film. Correspondingly, the cam 52 is divided into an upper cam 52 that drives the upper cutting die 54 to rise and fall, and a lower cam 52 that drives the lower cutting die 54 to rise and fall. The upper cam 52 and the lower cam 52 are arranged side by side in a non-concentric manner, which allows the upper cutting die 54 and the lower cutting die 54 to open and close in a predetermined sequence to complete the shearing action.

[0038] For ease of replacement and maintenance, the die 54 may be equipped with a die holder 55 connected to the connecting rod 56. The die 54 is detachably connected to the upper part of the die holder 55 by means of bolts or clips.

[0039] The anti-warping component 6 includes a clamping cylinder 61 positioned on the upper part of the frame 1, with its free end facing the conveying path. The free end of the clamping cylinder 61 is connected to a pressure plate 62 that vertically clamps the insulating film. Before and after cutting, the pressure plate 62 presses down to fix the insulating film, preventing it from warping due to stress release or static electricity, which could affect cutting accuracy or clamping operations.

[0040] In a preferred embodiment, the pressure plate 62 is divided into a static pressure plate 62 and a dynamic pressure plate 62 arranged at intervals. The static pressure plate 62 is directly connected to the free end of the pressing cylinder 61. The dynamic pressure plate 62 is positioned directly below the static pressure plate 62, and both ends of the dynamic pressure plate 62 are connected to the static pressure plate 62 via spring-loaded guide rods. This design provides a buffering effect during pressing, effectively flattening the insulating film without damaging the material due to overpressure.

[0041] The drive mechanism 2 includes a second shaft 22 rotatably connected to the frame 1. A wound roll of insulating film is arranged on the upper part of the second shaft 22. A motor 23 is arranged on the upper part of the frame 1 to drive the second shaft 22 to rotate. The motor 23 can feed the material intermittently or continuously according to a control signal.

[0042] In addition, multiple idlers for supporting and stretching the insulating film are arranged at intervals on the upper part of the frame 1 between the tensioning assembly 4 and the cutting assembly 5. The insulating film is wound around the surface of these idlers to ensure that the film remains flat and taut throughout the conveying process.

[0043] The method of using the insulating film cutting device of this utility model is as follows: 1. Feeding and film threading: The roll of material with insulating film is mounted on the second shaft 22 of the roller frame 21. The end of the insulating film is led out and passed sequentially under the pressure roller 42 of the tensioning assembly 4, over the multiple idler rollers, under the pressure plate 62 of the anti-warping assembly 6, and between the upper and lower dies 54 of the cutting assembly 5. Finally, the end is placed within the gripping range of the gripper 31.

[0044] 2. Initial tensioning: The motor 23 of the drive mechanism 2 rotates slowly, releasing a small amount of insulating film. The pressure roller 42 of the tensioning assembly 4 applies pressure to the insulating film under its own weight, and the damper 43 ensures a smooth tensioning process, allowing the film material to obtain appropriate initial tension.

[0045] 3. Traction and Positioning: The traction mechanism 3 is activated, and the rodless cylinder 32 drives the plate frame 33 and the gripper 31 to move to the end position of the film material. The dual-axis cylinder 34 is activated, driving the gripper 31 to clamp the two sides of the insulating film. Subsequently, the rodless cylinder 32 pulls the gripper 31, pulling the insulating film to the predetermined cutting length.

[0046] 4. Pressing and Cutting: After reaching the predetermined length, the traction mechanism 3 pauses. The pressing cylinder 61 of the anti-tilting component 6 descends, firmly pressing the insulating film onto the frame 1 or worktable via the pressure plate 62 to prevent it from moving or tilting. Immediately afterwards, the first shaft 51 of the cutting component 5 rotates, driving the cam 52 to rotate. The cam 52 drives the upper die 54 and the lower die 54 to move in opposite directions via the connecting rod 56, completing the cutting of the insulating film.

[0047] 5. Detection and Linkage Processing: After cutting, the anti-warping component 6 is lifted. At this time, the sensor 7 immediately detects whether the gripper 31 has successfully gripped the cut insulating film. If the sensor 7 does not detect that the gripper 31 has gripped the insulating film, the control system will control the gripper 31 to reset and re-execute the gripping operation, or trigger an alarm to wait for manual intervention. During this process, no new cutting commands will be executed. Only after the sensor 7 recognizes successful gripping will the control system allow or instruct the traction mechanism 3 to perform subsequent transfer operations.

[0048] 6. Transfer and Cycle: After successful gripping, the rodless cylinder 32 of the traction mechanism 3 actuates to transfer the diaphragm to the next station. After successful transfer, the gripper 31 returns, the drive mechanism 2 releases the material, and the device repeats steps 3 to 6 for the next cutting cycle.

Claims

1. An insulating film cutting device, characterized in that: The device includes a frame, one end of which is equipped with a roller frame for releasing the insulating film to be cut via a drive mechanism, and the other end of which is equipped with a gripper for pulling the cut insulating film via a traction mechanism. The insulating film forms a conveying path as it moves between the roller frame and the gripper. The upper part of the frame is respectively equipped with a tensioning component, a cutting component, and an anti-warping component placed above the conveying path. A sensor facing the conveying path is arranged on the upper part of the frame. The sensor is used to detect whether the gripper has gripped the cut insulating film.

2. The insulating film cutting device according to claim 1, characterized in that: The traction mechanism includes rodless cylinders spaced apart on the upper part of the frame on both sides of the conveying path. A plate frame driven by the rodless cylinder is arranged on the upper part of the rodless cylinder. Multiple dual-axis cylinders facing the conveying path are spaced apart at one end of the plate frame. Grippers for holding the cut insulating film are arranged at both ends of the dual-axis cylinders.

3. The insulating film cutting device according to claim 1, characterized in that: The tensioning assembly includes swing arms that rotate around the frame and are spaced apart. A pressure roller is placed horizontally between the swing arms to press down the insulating film to be cut on the conveying path. A damper is arranged on the upper part of the frame to buffer the swing speed of the swing arms.

4. The insulating film cutting device according to claim 1, characterized in that: The cutting assembly includes a first shaft rotatably connected to the frame, with multiple cams spaced apart on the upper part of the first shaft. Slide rails are arranged on the upper part of the frame on both sides of the conveying path, and cutting dies are spaced apart inside the slide rails and distributed on the upper and lower sides of the insulating film. The cutting dies are connected to the cams by connecting rods.

5. The insulating film cutting device according to claim 4, characterized in that: The die-cutting mold is divided into an upper die-cutting mold placed on the upper part of the insulating film and a lower die-cutting mold placed on the lower part of the insulating film. The cam is divided into an upper cam that drives the upper die-cutting mold to rise and fall and a lower cam that drives the lower die-cutting mold to rise and fall. The upper cam and the lower cam are arranged side by side in a non-concentric manner to realize the opening and closing operation between the upper die-cutting mold and the lower die-cutting mold.

6. The insulating film cutting device according to claim 4, characterized in that: The die-cutting mold can be equipped with a die holder connected to the connecting rod, and the die-cutting mold can be detachably connected to the upper part of the die holder.

7. The insulating film cutting device according to claim 1, characterized in that: The anti-warping component includes a clamping cylinder placed on the upper part of the frame with its free end facing the conveying path, and the free end of the clamping cylinder is connected to a pressure plate that vertically clamps the insulating film.

8. The insulating film cutting device according to claim 7, characterized in that: The pressure plate is divided into a static pressure plate and a dynamic pressure plate arranged at intervals. The static pressure plate is connected to the free end of the pressing cylinder, and the dynamic pressure plate is placed directly below the static pressure plate, with its two ends connected by guide rods with springs.

9. The insulating film cutting device according to claim 1, characterized in that: The drive mechanism includes a second shaft that is rotatably connected to the frame. An insulating film is wound on the upper part of the second shaft, and a motor that drives the second shaft to rotate is arranged on the upper part of the frame.

10. The insulating film cutting device according to claim 1, characterized in that: The upper part of the frame between the tensioning assembly and the cutting assembly is also provided with multiple rollers for stretching the insulating film, and the insulating film is arranged around the surface of the multiple rollers.

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