Full-automatic online film tearing machine

Abstract

The invention relates to a full-automatic online film tearing machine, and belongs to the technical field of electronic product film tearing. A coordination mechanism composed of a crank rocker part, a sliding part, an intermittent rotating part, a wedge-shaped telescopic part and a clamping jaw part is arranged on a supporting part, and an external driving part drives the crank rocker part to enable the sliding part to move back and forth; and during forward movement, the wedge-shaped telescopic part is matched with the intermittent rotating part to drive the clamping jaw part to rotate stage by stage, so that the protective film is stripped step by step, and the waste film is synchronously guided to the winding part. During reverse movement, the intermittent rotating part keeps the angle unchanged, it is guaranteed that the position of the clamping jaw part is stable, uneven film tearing or misoperation is avoided, the design converts single linear reciprocating motion into composite motion of linear sliding and stage rotating, the controllability of the track of the film tearing action is improved, the adaptability to different film layers and production takt is enhanced, and the production efficiency is improved. The problems that in the prior art, the film tearing track is single, and adaptability is poor are fundamentally solved.

Description

Technical Field

[0001] This invention belongs to the field of electronic product film peeling technology, specifically relating to a fully automatic online film peeling machine. Background Technology

[0002] In current industrial production, many electronic products require a protective film before leaving the factory to prevent scratches or contamination during transportation and assembly. In subsequent assembly processes, this protective film needs to be quickly and smoothly removed to ensure product cleanliness and yield. To adapt to high-speed, continuous production cycles, automated film-tearing equipment has become a key piece of equipment on production lines. Existing fully automatic online film-tearing machines mostly use motor-driven linear modules or cylinders to drive suction cups or grippers to perform the film-tearing action. Some machines also incorporate vision positioning systems to identify the film's position. While these devices achieve a degree of automation in the film-tearing process, their actuators typically only achieve linear reciprocating motion or simple oscillation in a single direction, and the trajectory control and adaptability of the film-tearing action still have certain limitations.

[0003] However, the aforementioned existing technologies have some problems in practical applications: First, due to uneven adhesion between the protective film and the product surface or deviations in the initial tearing angle, unidirectional straight tearing easily leads to film breakage or residue, requiring manual intervention and severely impacting production efficiency; second, most equipment struggles to adjust the tearing angle and height in real time during high-speed operation, making it unsuitable for different viscosities or types of film materials; furthermore, in continuous operation, the grippers or suction cups need frequent resetting, resulting in a long idle stroke and limiting further improvements in equipment cycle time. Therefore, a new type of film-tearing mechanism is urgently needed, capable of stably and adaptively completing the film-tearing action during high-speed online operation, while effectively reducing idle stroke time and improving overall production efficiency and adaptability. Summary of the Invention

[0004] To address the problem that most existing fully automatic online film-tearing machines rely solely on motor-driven linear modules or cylinders to drive suction cups / grippers, resulting in a relatively simple motion trajectory and a lack of flexibility in reciprocating or oscillating movements, leading to insufficient control over the film-tearing trajectory, poor adaptability, and difficulty in achieving efficient, smooth, and stable film-tearing effects in high-speed continuous production, this invention provides a fully automatic online film-tearing machine.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A fully automatic online film-peeling machine includes a support unit and a film-peeling assembly mounted on the support unit. The film-peeling assembly includes a crank-rocker unit, a sliding part slidably mounted on the support unit, an intermittent rotating part, a wedge-shaped telescopic part, a gripper part, and a waste film winding part mounted on the gripper part. The crank of the crank-rocker unit is connected to an external drive component, and the crank is rotatably mounted on the support unit. The sliding part is hinged to the rocker arm of the crank-rocker unit. The intermittent rotating part is mounted on the sliding part and connected to the gripper part. The gripper part is used to grip and peel off the protective film. The wedge-shaped telescopic part is mounted on the support unit, and the wedge-shaped inclined surface of the wedge-shaped telescopic part faces the movement path of the sliding part. The external drive component drives the sliding part to slide back and forth through the crank-rocker unit. When the sliding part moves forward, the wedge-shaped telescopic part cooperates with the intermittent rotating part to drive the intermittent rotating part to rotate in stages. The intermittent rotating part drives the gripper part to rotate in stages. When the sliding part moves in the reverse direction, the intermittent rotating part maintains a fixed angle, thereby realizing the gradual peeling of the protective film and the simultaneous completion of waste film winding.

[0006] As a further embodiment of the present invention, the intermittent rotating part includes a rotating block, four limiting rods, and a connecting rod. One side of the rotating block is fixedly connected to the gripper part, and the connecting rod is located at the center of the other side of the rotating block. The four limiting rods are evenly and vertically distributed along the circumferential edge of the rotating block. A limiting cylinder is provided on the sliding part. The limiting cylinder has a straight groove that fits with the connecting rod with a clearance, allowing the connecting rod to slide up and down in the straight groove and rotate around its own axis. The top surface of the limiting cylinder has an annular groove with a bevel. The rotating block has an irregular protrusion on the opposite side that fits with the annular groove, which is used to drive the rotating block to rotate and lift the gripper part when the sliding part moves in the forward direction, and to keep it from rotating when the sliding part moves in the reverse direction.

[0007] As a further embodiment of the present invention, the first sliding plate of the sliding part is provided with a second sliding plate below the first sliding plate. The second sliding plate is slidably disposed with the support part. The first sliding plate below the limiting cylinder is provided with a through hole, and the second sliding plate is provided with a limiting hole. The connecting rod can be inserted and connected through the through hole and the limiting hole.

[0008] As a further aspect of the present invention, the relative position and range of motion of the first sliding plate and the second sliding plate are matched with the rotation angle of the intermittent rotating part.

[0009] As a further embodiment of the present invention, the annular groove with a bevel on the top surface of the limiting cylinder is a stepped groove, the stepped groove gradually decreases along the direction of rotation of the rotating block, and the step between two adjacent stepped grooves is a downwardly concave arc structure.

[0010] As a further aspect of the present invention, each step of the stepped groove has a smooth structure.

[0011] As a further embodiment of the present invention, the wedge-shaped telescopic part includes a spring telescopic rod that slides through the support part and a wedge-shaped block disposed at the end of the spring telescopic rod, wherein the angle between the wedge-shaped inclined surface of the wedge block and the opposite direction of movement of the sliding part is an acute angle.

[0012] As a further aspect of the present invention, the wedge-shaped inclined surface of the wedge block and the opposite direction of movement of the sliding part are at an angle of 30° to 60°.

[0013] As a further embodiment of the present invention, the gripper portion includes a pair of opposing gripping claws, and the inner surface of the gripping claws is provided with an anti-slip friction layer.

[0014] As a further embodiment of the present invention, the gripper portion and the waste film winding portion are connected by a flexible guide member. The flexible guide member is used to guide the waste film strip after being gripped by the gripper into the winding shaft of the waste film winding portion. One end of the flexible guide member is movably connected to the gripper portion, and the other end is fixedly disposed near the winding shaft of the waste film winding portion.

[0015] The beneficial effects of this invention are: By incorporating a coordinating mechanism on the support section, consisting of a crank-rocker section, a sliding section, an intermittent rotating section, a wedge-shaped telescopic section, and a gripper section, an external drive unit drives the crank-rocker section, causing the sliding section to reciprocate. During forward motion, the wedge-shaped telescopic section and the intermittent rotating section cooperate to drive the gripper section to rotate in stages, thereby gradually peeling off the protective film and simultaneously guiding the waste film to the winding section. During reverse motion, the intermittent rotating section maintains a constant angle, ensuring the stability of the gripper section's position and preventing uneven film tearing or malfunctions. This design transforms a single linear reciprocating motion into a composite motion of "linear sliding and staged rotation," improving the controllability of the film tearing trajectory and enhancing adaptability to different film layers and production cycles. It fundamentally solves the problems of single film tearing trajectory and poor adaptability in existing technologies. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the film-peeling assembly structure of the present invention; Figure 3 This is a schematic diagram of the installation of the connecting rod and the annular groove according to the present invention; Figure 4 This is a schematic diagram of the connecting rod installation according to the present invention; Figure 5 This is a schematic diagram of the limiting cylinder structure of the present invention; Figure 6 This is a schematic diagram of the annular groove structure of the present invention.

[0018] Legend: 1. Support part; 2. Film tearing assembly; 21. Crank rocker part; 22. Sliding part; 221. Limiting cylinder; 23. Intermittent rotation part; 231. Rotating block; 232. Limiting rod; 233. Connecting rod; 24. Wedge-shaped telescopic part; 241. Spring telescopic rod; 242. Wedge block; 25. Gripper part; 26. Annular groove; 27. Irregular protrusion; 28. Straight groove; 3. Second sliding plate; 31. Limiting hole. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0020] In existing technologies, automated film-tearing equipment mostly uses linear reciprocating or simple oscillating mechanisms to perform the film-tearing action, which has drawbacks such as the inability to adjust the film-tearing angle, easy breakage of the film material, and long idle stroke time. For example, in high-speed continuous production lines, when the adhesive force of the protective film is unevenly distributed, the unidirectional tearing action of traditional equipment can easily lead to film material residue or breakage, requiring machine shutdown for treatment, which seriously affects the continuity of production.

[0021] To address the aforementioned issues, the applicant identified the need to design a film-peeling mechanism with dynamic angle adjustment capabilities. By analyzing the mechanical properties of film peeling, it was recognized that changing the film-peeling angle in stages could effectively overcome sudden changes in adhesion force. Based on this, the applicant attempted to combine an intermittent rotation mechanism with linear motion, utilizing a wedge structure to achieve motion direction conversion, ultimately forming a technical route that drives staged rotation through reciprocating sliding. Based on this, this application proposes a new fully automatic online film-peeling machine.

[0022] refer to Figure 1 - Figure 6This embodiment provides a fully automatic online film-tearing machine, including a support part 1 and a film-tearing assembly 2 disposed on the support part 1. The film-tearing assembly 2 includes a crank rocker part 21, a sliding part 22 slidably disposed on the support part 1, an intermittent rotation part 23, a wedge-shaped telescopic part 24, a gripper part 25, and a waste film winding part disposed on the gripper part 25. The crank of the crank rocker part 21 is connected to an external drive component, and the crank is rotatably mounted on the support part 1. The sliding part 22 is hinged to the rocker of the crank rocker part 21. The intermittent rotation part 23 is mounted on the sliding part 22 and connected to the gripper part 25. The gripper part 25 is used to clamp... The protective film is held and peeled off. The wedge-shaped telescopic part 24 is set on the support part 1, and the wedge-shaped inclined surface of the wedge-shaped telescopic part 24 faces the movement path of the sliding part 22. The external drive unit drives the sliding part 22 to slide back and forth through the crank rocker part 21. When the sliding part 22 moves in the forward direction, the wedge-shaped telescopic part 24 cooperates with the intermittent rotating part 23 to drive the intermittent rotating part 23 to rotate in stages. The intermittent rotating part 23 drives the gripper part 25 to rotate in stages. When the sliding part 22 moves in the reverse direction, the intermittent rotating part 23 maintains a fixed angle, thereby realizing the gradual peeling of the protective film and the synchronous completion of waste film winding. The external drive unit is an external motor.

[0023] The crank-rocker section 21 refers to the mechanism that converts rotary motion into linear reciprocating motion. Specifically, it includes a cam and a connecting rod, with the connecting rod connected to the eccentric position of the cam. The center of the cam is connected to the drive shaft of an external motor. Figure 2 As shown, the crank rocker arm 21 is used to drive the sliding part 22. The intermittent rotation part 23 refers to a rotating mechanism with indexing and positioning function. In this application, for ease of understanding, it can be simply understood as a turntable with a limit groove and a positioning pin working together to precisely control the rotation angle of the gripper part 25. However, its specific structure is described in detail below. The wedge-shaped telescopic part 24 refers to an elastic telescopic device with an inclined working surface. Specifically, it can be implemented by an inclined slider structure with a return spring, which is used to trigger the action of the intermittent rotation part 23 during the movement of the sliding part 22.

[0024] During operation, the fully automatic film-peeling machine of this application uses an external drive unit to drive the crank rocker arm 21, which in turn drives the sliding part 22 to perform reciprocating linear motion. When the sliding part 22 moves forward, the inclined surface of the wedge-shaped telescopic part 24 contacts the sliding part 22, pushing the intermittent rotating part 23 to gradually change the angle of the grippers, thereby achieving segmented peeling of the protective film. During the reverse movement, the intermittent rotating part 23 maintains a fixed angle, and the grippers only perform linear reset motion. The waste film winding part guides the peeled waste film to the winding shaft through a flexible guide, achieving simultaneous peeling and winding operations.

[0025] It should be noted that the positive movement mentioned above refers to, for example... Figure 2The leftward movement is the positive direction, that is, the direction away from the crank rocker arm 21 is the positive direction. All references to the positive and negative directions of the movement of the sliding part 22 in the text are based on this direction.

[0026] Compared to existing technologies, traditional equipment uses a single-direction linear tearing motion. This solution, however, incorporates a coordinating mechanism on the support section 1, consisting of a crank-rocker section 21, a sliding section 22, an intermittent rotating section 23, a wedge-shaped telescopic section 24, and a gripper section 25. An external drive unit drives the crank-rocker section 21, causing the sliding section 22 to reciprocate. During forward motion, the wedge-shaped telescopic section 24 and the intermittent rotating section 23 cooperate to drive the gripper section 25 to rotate in stages, gradually peeling off the protective film and simultaneously guiding the waste film to the winding section. During reverse motion, the intermittent rotating section 23 maintains a constant angle, ensuring the gripper section 25 remains in a stable position and preventing uneven tearing or malfunctions. This design transforms the single linear reciprocating motion into a composite motion of "linear sliding and staged rotation," improving the controllability of the tearing trajectory and enhancing adaptability to different film layers and production cycles. This fundamentally solves the problems of a single tearing trajectory and poor adaptability in existing technologies. Furthermore, the coordinated action of the crank rocker and the intermittent rotating part 23 enables multi-angle film tearing in a single stroke. In existing technologies, there is a idle stroke during the gripper's reset. This solution utilizes the angle-holding characteristic during reverse motion, allowing the gripper to simultaneously complete waste film winding during the reset process, effectively shortening the work cycle. Through the above technical solution, this application can adjust the film tearing angle to adapt to different adhesion force distributions, avoiding film breakage or residue. The coordination between the intermittent rotating mechanism and linear motion reduces the equipment's idle stroke time, the inclined triggering mechanism of the wedge-shaped telescopic part 24 ensures precise timing of actions, and the flexible guide enables continuous peeling and winding operations, significantly improving production line operating efficiency.

[0027] Following the above embodiments, in order to better illustrate how well the film-tearing mechanism adjusts the clamping angle during movement, in this embodiment, the intermittent rotating part 23 includes a rotating block 231, four limiting rods 232, and a connecting rod 233. One side of the rotating block 231 is fixedly connected to the gripper part 25, and the connecting rod 233 is located at the center of the other side of the rotating block 231. The four limiting rods 232 are evenly and vertically distributed on the circumferential edge of the rotating block 231. A limiting cylinder 221 is provided on the sliding part 22. The limiting cylinder 221 has a straight groove 28 that fits with the connecting rod 233 with a clearance, so that the connecting rod 233 can slide up and down in the straight groove 28 and rotate around its own axis. The top surface of the limiting cylinder 221 has an annular groove 26 with a bevel. The opposite side of the rotating block 231 has an irregular protrusion 27 that fits with the annular groove 26, which is used to drive the rotating block 231 to rotate and drive the gripper part 25 to lift when the sliding part 22 moves in the forward direction, and to keep it from rotating when the sliding part 22 moves in the reverse direction. Among them, the rotating block 231 refers to the rotating component rigidly connected to the gripper 25. It transmits rotational power through the central connecting rod 233. Its function is to convert the linear motion of the sliding part 22 into the staged rotational action of the gripper 25. The limiting rod 232 refers to the vertical rods evenly distributed around the circumference of the rotating block 231. Specifically, it can be four cylindrical steel rods welded to the edge of the rotating block 231 to limit the angle range of the rotating block 231 during rotation and prevent excessive rotation from causing the mechanism to jam. The connecting rod 233 refers to the transmission component that passes through the limiting cylinder 221. It realizes the composite motion of sliding up and down and rotating around the axis through the clearance fit of the straight groove 28. Its function is to separate the linear displacement of the sliding part 22 and the rotational action of the rotating block 231 so that they do not affect each other. The limiting cylinder 221 refers to the guide structure set on the sliding part 22. It generates a rotational driving torque when sliding forward through the inclined surface of the annular groove 26 at the top and locks the angle through planar contact when sliding backward.

[0028] During the actual movement, when the sliding part 22 moves forward, the limiting cylinder 221 moves forward with the sliding part 22, and the inclined surface of the annular groove 26 at its top contacts the protrusion of the rotating block 231, forcing the rotating block 231 to rotate around the axis of the connecting rod 233. During rotation, the four limiting rods 232 sequentially abut against the outer wall of the limiting cylinder 221, dividing the continuous rotation into four stages of rotation, each with a rotation angle of 90 degrees. The connecting rod 233 rotates and slides axially synchronously within the straight groove 28, causing the gripper part 25 to gradually peel off the protective film during the rotation and lifting process. When the sliding part 22 reverses and resets, the planar area of ​​the groove at the top of the limiting cylinder 221 contacts the protrusion of the rotating block 231. The rotating block 231 is circumferentially constrained by the four limiting rods 232 and maintains a fixed angle. At this time, the gripper part 25 only performs a linear reset motion. Here, through the inclined contact mechanism between the limiting cylinder 221 and the rotating block 231, a staged rotation action is generated synchronously in the linear reciprocating motion, so that the gripper part 25 periodically adjusts the peeling angle during the film peeling process, avoiding the problem of breakage of the protective film due to a single force direction. It also realizes the multi-angle adaptive adjustment of the gripper part 25 in the linear film peeling stroke, effectively dealing with the working condition of uneven distribution of protective film adhesion force. The four-stage rotation action makes the film peeling process form a wave-shaped tearing trajectory, reducing the risk of local stress concentration. The angle locking function of the rotating block 231 during reverse movement shortens the mechanism reset stroke time and improves the efficiency of continuous operation.

[0029] To better avoid film breakage or residue problems caused by uncontrolled rotation angle during the protective film peeling process, in one embodiment, a second sliding plate 3 is provided below the first sliding plate of the sliding part 22. The second sliding plate 3 is slidably disposed with the support part 1. A through hole is provided on the first sliding plate below the limiting cylinder 221, and a limiting hole 31 is provided on the second sliding plate 3. The connecting rod 233 can be inserted and connected through the through hole and the limiting hole 31. The through hole is a circular through hole opened on the first sliding plate, and the hole diameter can be slightly larger than the diameter of the connecting rod 233, for example, a clearance fit of 0.1 to 0.5 mm is allowed. The limiting hole 31 can be specifically designed to... A chamfered tapered hole structure is used to provide axial constraint when the connecting rod 233 passes through, preventing the rotating block 231 from shifting during movement. When the external drive unit drives the first sliding plate to slide forward through the crank rocker part 21, the connecting rod 233 moves upward within the straight groove 28 of the limiting cylinder 221. At this time, the relative position of the through hole and the limiting hole 31 allows the connecting rod 233 to move freely in the vertical direction. When the sliding part 22 moves in the opposite direction, the sliding range of the second sliding plate 3 constrained by the support part 1 forms a positional difference with the first sliding plate. The limiting hole 31 exerts a lateral limiting effect on the connecting rod 233, forcing the rotating block 231 to maintain a fixed angle. By adjusting the stroke matching relationship of the two sliding plates, it can be ensured that the staged rotation angle of the intermittent rotating part 23 is precisely synchronized with the peeling action of the gripper part 25.

[0030] Furthermore, in one embodiment, the relative position and range of motion of the first sliding plate and the second sliding plate 3 are matched with the rotation angle of the intermittent rotating part 23. The relative position refers to the installation distance between the first sliding plate and the second sliding plate 3 on the support part 1, which can be achieved by adjusting the fixed distance between them, for example, by using an adjustable bolt connection structure, so that the distance between them can be adaptively adjusted according to the rotation angle requirements. The range of motion refers to the sliding stroke limit of the first sliding plate and the second sliding plate 3 on the support part 1, which can be specifically limited by setting a limit stop or a sensor, for example, by installing a limit stop or sensor at the end of the guide rail of the support part 1. A mechanical limiter is installed to ensure that the sliding plate can only move within a preset range. Matching means that by adjusting the relative position and range of motion parameters of the sliding plate, the rotation angle of the intermittent rotating part 23 and the staged rotation action of the gripper part 25 are precisely correlated. For example, by calculating the displacement required for the rotation angle, the stroke and spacing parameters of the sliding plate are derived in reverse. In addition, the angle change of the intermittent rotating part 23 is directly bound to the displacement of the sliding plate, which avoids the problem of film residue caused by the rotation angle deviation and reduces the idle stroke time during the reset process, thus achieving precise matching between the rotation angle of the gripper part 25 and the displacement of the sliding plate.

[0031] Furthermore, in one embodiment, the annular groove 26 with a bevel on the top surface of the limiting cylinder 221 is a stepped groove. The stepped groove gradually decreases in height along the direction of rotation of the rotating block 231. The step between two adjacent stepped grooves is a downwardly recessed arc structure. The stepped groove refers to the annular groove 26 on the top surface having multiple steps with decreasing height. Specifically, it can be achieved by milling continuous stepped grooves on the surface of the metal limiting cylinder 221 using mechanical processing. Each step corresponds to a staged rotation angle of the rotating block 231, such as... Figure 3 or Figure 6 As shown, the downward-concave arc-shaped structure refers to the concave curve shape of the transition area between adjacent steps. This can be achieved by machining a smooth transition surface using a circular arc cutting tool. This structure buffers the impact of the rotating block 231 during step transitions. When the sliding part 22 moves forward, the irregular protrusions 27 of the rotating block 231 move along the stepped groove. The progressively decreasing step characteristic causes the rotating block 231 to undergo phased angle changes. The stepped groove is designed with four steps. When the rotating block 231 crosses a step, the arc-shaped transition structure guides the protrusion to smoothly slide into the next step through the curved surface, avoiding vibration caused by rigid collisions. When the sliding part 22 moves in the opposite direction, the protrusion slides along the step plane. Since the step height is fixed, the rotating block 231 maintains its current angle, achieving phased and precise adjustment of the angle and height of the gripper part 25 during the protective film peeling process, effectively solving the problem of film breakage caused by sudden changes in the tearing angle.

[0032] To eliminate the mechanical impact problem of the stepped groove and ensure that the intermittent rotating part 23 maintains smooth movement during the staged rotation, in one embodiment, each step of the stepped groove has a smooth structure.

[0033] The stepped groove refers to the annular groove 26 on the top surface of the limiting cylinder 221. Each step is connected by a smooth transition structure, which can be achieved by using an arc-shaped curved surface or a sloped transition. This structure can reduce the mechanical impact when the rotating block 231 contacts the groove during rotation, and avoid the angular displacement of the gripper part 25 or the tearing of the protective film caused by abrupt changes in the steps, thereby improving the reliability of the film tearing action and the service life of the equipment.

[0034] To better avoid impact vibration or jamming during high-speed reciprocating motion, in one embodiment, the wedge-shaped telescopic part 24 includes a spring telescopic rod 241 that slides through the support part 1 and a wedge-shaped block 242 disposed at the end of the spring telescopic rod 241. The angle between the wedge-shaped inclined surface of the wedge block 242 and the reverse movement direction of the sliding part 22 is an acute angle. Through the cooperation between the wedge block 242 and the spring telescopic rod 241, the mechanical contact of the reverse movement of the sliding part 22 is transformed into an elastic buffering process, effectively reducing the instantaneous impact load of the moving parts. This solves the problem of rigid collision between the sliding part 22 and the support part 1 during reverse movement, which causes the mechanism to jam. This ensures that the film-tearing assembly 2 achieves stable and reliable reciprocating motion during high-speed continuous operation. At the same time, the elastic contact reduces mechanical wear and extends the service life of the equipment.

[0035] Since the wedge-shaped telescopic part 24 triggers the intermittent rotation part 23 to move through the wedge-shaped inclined surface, if the angle of the inclined surface is unreasonable (too small or too large), it will cause the gripper to rotate unstably. If the angle is too small, the friction will be insufficient, and it may not be able to reliably drive the gripper to move. If the angle is too large, the impact force will be too strong, which will easily cause wear of the mechanism or tearing of the membrane material. Therefore, in one embodiment, the angle between the wedge-shaped inclined surface of the wedge block 242 and the opposite direction of movement of the sliding part 22 is 30°~60°. By optimizing the angle between the wedge-shaped inclined surface of the wedge block 242 and the opposite direction of movement of the sliding part 22 to... The angle of 30° to 60° ensures a reasonable thrust direction during the contact process while avoiding excessive impact. When the angle is less than 30°, the thrust direction is too horizontal, resulting in insufficient friction and difficulty for the gripper to achieve stable lifting. When the angle is greater than 60°, the thrust direction tends to be vertical. Although it can trigger the action, the impact is too strong, causing severe wear on the mechanism. Between 30° and 60°, sufficient thrust can be provided while maintaining smooth operation. In high-speed production, the gripper can smoothly complete the angle adjustment in stages, ensuring stable and reliable peeling action and significantly extending the service life of the mechanism.

[0036] In addition, the grippers are responsible for holding and peeling the protective film. However, if the gripping force is insufficient or the film material is slippery, problems such as loose gripping, film strip breakage, or uneven peeling may occur. Simultaneously, if the waste film lacks guidance during its entry into the winding section, it may jam or accumulate, affecting winding efficiency. To avoid this problem, in one embodiment, the gripper portion 25 includes a pair of opposing gripping claws. The inner surface of the gripping claws is provided with an anti-slip friction layer. The gripper portion 25 is connected to the waste film winding section via a flexible guide, which is used to guide the gripper... After being gripped by the claws, the waste film strip is smoothly guided into the winding shaft of the waste film winding section. One end of the flexible guide is movably connected to the claw part 25, and the other end is fixedly set near the winding shaft of the waste film winding section. An anti-slip friction layer is added to the inner side of the claw part 25 to improve the gripping force and stability and prevent the film material from slipping or tearing unevenly. At the same time, the addition of the flexible guide allows the waste film strip gripped by the claws to be smoothly guided into the winding shaft, realizing automatic guidance. The flexible design allows the film material to enter the winding section smoothly under different angles and tensions, avoiding accumulation.

[0037] The working principle and workflow of this invention: An external drive unit drives the crank rocker arm 21 to rotate, which in turn drives the sliding part 22 to reciprocate linearly on the support part 1. When the sliding part 22 moves forward, the intermittent rotating part 23 on it will contact the wedge-shaped telescopic part 24 fixed on the support part 1. The inclined surface of the wedge block 242 pushes the rotating block 231 in the intermittent rotating part 23 to rotate in stages, rotating by a fixed angle, i.e., 90 degrees each time. This drives the gripper part 25 connected to it to gradually lift up while tearing the film, realizing the gradual peeling of the protective film. At the same time, the waste film that has been torn off by the gripper is guided by the flexible guide and introduced into the waste film winding part for winding in real time.

[0038] During the reverse reset motion of the sliding part 22, the wedge-shaped telescopic part 24 contracts, and the intermittent rotating part 23 maintains a fixed angle with the planar contact structure on the rotating block 231 through the limiting cylinder 221, without rotating. At this time, the gripper part 25 only performs a linear retraction motion and does not perform film tearing, thereby ensuring that the waste film is continuously and stably wound up without loosening. The entire mechanism transforms the continuous reciprocating linear motion into a composite motion of rotating film tearing when moving forward and linear reset when moving backward, realizing adaptive adjustment of the film tearing angle and synchronous peeling and winding, which significantly improves the reliability, adaptability and production efficiency of film tearing.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A fully automatic online film-peeling machine, comprising a support unit and a film-peeling assembly disposed on the support unit, characterized in that, The film-peeling assembly includes a crank-rocker section, a sliding section slidably mounted on a support section, an intermittent rotation section, a wedge-shaped telescopic section, a gripper section, and a waste film winding section mounted on the gripper section. The crank of the crank-rocker section is connected to an external drive component, and the crank is rotatably mounted on the support section. The sliding section is hinged to the rocker arm of the crank-rocker section. The intermittent rotation section is mounted on the sliding section and connected to the gripper section. The gripper section is used to clamp and peel off the protective film. The wedge-shaped telescopic section is mounted on the support section, and the wedge-shaped inclined surface of the wedge-shaped telescopic section faces the movement path of the sliding section. The external drive unit drives the sliding part to slide back and forth through the crank rocker part. When the sliding part moves in the forward direction, the wedge-shaped telescopic part cooperates with the intermittent rotating part to drive the intermittent rotating part to rotate in stages. The intermittent rotating part drives the gripper part to rotate in stages. When the sliding part moves in the reverse direction, the intermittent rotating part maintains a fixed angle, thereby realizing the gradual peeling of the protective film and the simultaneous completion of the waste film winding.

2. The fully automatic online film-peeling machine according to claim 1, characterized in that, The intermittent rotating part includes a rotating block, four limiting rods, and a connecting rod. One side of the rotating block is fixedly connected to the gripper part, and the connecting rod is located at the center of the other side of the rotating block. The four limiting rods are evenly and vertically distributed along the circumferential edge of the rotating block. A limiting cylinder is provided on the sliding part. The limiting cylinder has a straight groove that fits with the connecting rod with a clearance, allowing the connecting rod to slide up and down in the straight groove and rotate around its own axis. The top surface of the limiting cylinder has an annular groove with a bevel. The rotating block has an irregular protrusion on the opposite side that fits with the annular groove. This protrusion is used to drive the rotating block to rotate and lift the gripper part when the sliding part moves in the forward direction, and to remain stationary when the sliding part moves in the reverse direction.

3. The fully automatic online film-tearing machine according to claim 2, characterized in that, The sliding part has a first sliding plate, and a second sliding plate is provided below the first sliding plate. The second sliding plate is slidably disposed with the support part. The first sliding plate below the limiting cylinder is provided with a through hole, and the second sliding plate is provided with a limiting hole. The connecting rod can pass through the through hole and be inserted into the limiting hole for connection.

4. The fully automatic online film-tearing machine according to claim 3, characterized in that, The relative positions and range of motion of the first sliding plate and the second sliding plate are matched with the rotation angle of the intermittent rotating part.

5. The fully automatic online film-peeling machine according to claim 1, characterized in that, The annular groove with a bevel on the top surface of the limiting cylinder is a stepped groove. The stepped groove gradually decreases in the direction of rotation of the rotating block, and there is a downward concave arc structure between the steps of two adjacent stepped grooves.

6. The fully automatic online film-peeling machine according to claim 5, characterized in that, Each step of the stepped groove has a smooth structure.

7. The fully automatic online film-peeling machine according to claim 1, characterized in that, The wedge-shaped telescopic part includes a spring telescopic rod that slides through the support part and a wedge-shaped block disposed at the end of the spring telescopic rod. The angle between the wedge-shaped inclined surface of the wedge block and the opposite direction of movement of the sliding part is an acute angle.

8. The fully automatic online film-peeling machine according to claim 7, characterized in that, The wedge-shaped inclined surface of the wedge block and the sliding part move in the opposite direction at an angle of 30° to 60°.

9. The fully automatic online film-peeling machine according to claim 1, characterized in that, The gripper portion includes a pair of opposing gripping claws, and the inner surface of the gripping claws is provided with an anti-slip friction layer.

10. A fully automatic online film-tearing machine according to claim 9, characterized in that, The gripper part and the waste film winding part are connected by a flexible guide. The flexible guide is used to guide the waste film strip after it is gripped by the gripper into the winding shaft of the waste film winding part. One end of the flexible guide is movably connected to the gripper part, and the other end is fixedly set near the winding shaft of the waste film winding part.

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