Film tearing mechanism with air blowing and spade-shaped cutter

Abstract

The utility model relates to a kind of tear film mechanism with blowing spade, belong to tear film equipment technical field, the floating bottom plate is arranged in the piston base, the piston base with the buffer spring is arranged in the floating bottom plate, horizontal moving mechanism is arranged on the floating bottom plate, the output end of the horizontal moving mechanism is installed with blowing spade, the spade clamp baffle that is clamped with blowing spade cooperation to film is arranged on the piston base.This application realizes full-automatic precision tear film by multiple components cooperation, significantly improves efficiency and quality.At the same time, the vertical distance of cutter head cutting edge and contact surface is set as the product thickness after tearing film, can accurately control spade film depth, avoid scratching material, reduce product loss, meet the production demand of flexible circuit board and other precision products, more material tear film operation can be completed in unit time, production efficiency is significantly improved compared with manual.

Description

Technical Field

[0001] This utility model belongs to the technical field of film tearing equipment, and in particular relates to a film tearing mechanism with an air blowing blade. Background Technology

[0002] With the rapid development of electronics technology and automation, flexible printed circuit boards (FPCs), a type of printed circuit board with high reliability and excellent flexibility, are increasingly widely used in the production of electronic products. They are lightweight, bend-resistant, and possess excellent electrical properties. In FPC production, thin film-type auxiliary materials such as pressure-sensitive adhesives, PI films, and steel sheets are frequently used to reinforce the mechanical strength of the FPC. As labor costs rise, fully automated, unmanned production workshops are becoming increasingly important in manufacturing. Traditional film-tearing methods involve manual tearing, resulting in high production costs and low efficiency. Therefore, a fully automated film-tearing mechanism is urgently needed. Workers simply need to install the material rolls on the roll-mounting mechanism in the warehouse, replenish the material at the loading point, and empty the material at the unloading point before starting the machine and commencing work.

[0003] The following problems exist: 1. The original manual operation was time-consuming, resulting in low overall machine production efficiency; 2. With high labor costs, using a fully automatic film-tearing mechanism eliminates the need for workers to operate the machine on-site, resulting in lower labor costs and higher production efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a film-tearing mechanism with an air-blowing scraper, including a piston base, a floating bottom plate provided inside the piston base, a buffer spring provided inside the piston base and the floating bottom plate, a horizontal moving mechanism provided on the floating bottom plate, an air-blowing scraper installed at the output end of the horizontal moving mechanism, and a scraper clamping baffle provided on the piston base to cooperate with the air-blowing scraper to clamp the film.

[0005] Furthermore, the piston base is provided with a connecting part for connecting with the vertical moving mechanism.

[0006] Furthermore, a ball-head plunger is provided inside the piston base and the floating base plate.

[0007] Furthermore, the horizontal moving mechanism includes: a guide rail, which is mounted on the floating base plate, a slider on the guide rail, a nut connected to the slider via a lead screw connecting seat, a lead screw motor mounted on the floating base plate, a lead screw at the output end of the lead screw motor, and the lead screw being connected to the nut.

[0008] Furthermore, at least one first photoelectric switch is provided on the piston base, and a first light-shielding plate is provided on the floating base plate to cooperate with the first photoelectric switch to detect the moving position of the floating base plate.

[0009] Furthermore, a second light-shielding plate is provided on the nut or the lead screw connecting seat, and a second photoelectric switch is provided on the floating base plate to detect the movement position of the air-blowing blade in cooperation with the second light-shielding plate.

[0010] Furthermore, the air-blowing shovel includes a frame, on which a blade is mounted, and the blade has an air-blowing port on at least one side.

[0011] Furthermore, the frame is provided with a clamping surface that cooperates with the shovel clamp baffle, and the bottom of the frame is provided with an abutment surface that contacts the platform.

[0012] Furthermore, the vertical distance between the blade and the contact surface is equal to the thickness of the product after the film is peeled off.

[0013] Furthermore, the first photoelectric switch is mounted on the piston base via a photoelectric height adjustment block.

[0014] The beneficial effects of this utility model are: This application achieves fully automated and precise film tearing through multi-component collaboration, significantly improving efficiency and quality. The horizontal movement mechanism, utilizing guide rails, lead screws, and a lead screw motor, drives the air-blowing blade to move precisely horizontally along a fixed trajectory. The blade head stably lifts the film corners, avoiding random deviations inherent in manual operation. Air blowing from the air outlet further lifts the film, reducing adhesion between the film and materials. Combined with the stable clamping of the blade clamping baffle and holding surface, this significantly reduces issues of missed or incomplete film tearing. Simultaneously, the vertical distance between the blade and the contact surface is set to the thickness of the product after tearing, allowing for precise control of the tearing depth, preventing material scratches, reducing product waste, and meeting the production needs of precision products such as flexible circuit boards. More material can be torn per unit time, resulting in a significant increase in production efficiency compared to manual methods.

[0015] This application enhances the adaptability of the mechanism and simplifies operation through a multi-adjustable structure and intelligent detection design, effectively reducing costs and debugging difficulty. The connecting part of the piston base can flexibly connect to an external vertical moving mechanism to adapt to the material position requirements of different production scenarios; the photoelectric height adjustment block can adjust the height of the first photoelectric switch according to the material thickness, ensuring precise matching between the first photoelectric switch and the first light-shielding plate, allowing debugging to be completed without extensive disassembly of parts, shortening changeover time. In addition, the fully automatic operation mode does not require continuous on-site operation by workers, only material replenishment and waste removal in the warehouse, significantly reducing labor costs; the cooperation between the buffer spring and the ball plunger achieves flexible contact, avoiding component damage caused by rigid collisions, extending equipment lifespan, reducing maintenance costs, meeting the needs of fully automated unmanned production workshops, and balancing economy and practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation position of the buffer spring of this utility model; Figure 3 This is the front view of this utility model; Figure 4 This is a schematic diagram of the installation position of the second photoelectric switch of this utility model; Figure 5 This is a cross-sectional view of the present invention; Figure 6 This is a schematic diagram of the structure of the air-blowing shovel of this utility model.

[0017] The attached figures show the following components: piston base 1, floating base plate 2, buffer spring 3, horizontal moving mechanism 4, air-blowing blade 5, blade clamping baffle 6, connecting part 11, ball-head plunger 7, guide rail 41, slider 42, lead screw connecting seat 43, nut 44, lead screw motor 45, lead screw 46, first photoelectric switch 12, first light shield 13, second light shield 14, second photoelectric switch 15, frame 51, blade head 52, air blowing port 53, clamping surface 54, contact surface 55, and photoelectric height adjustment block 8. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to embodiments and accompanying drawings: A film-tearing mechanism with an air-blowing scraper includes a piston base 1, a floating base plate 2 disposed within the piston base 1, a buffer spring 3 disposed within the piston base 1 and the floating base plate 2, a horizontal moving mechanism 4 disposed on the floating base plate 2, an air-blowing scraper 5 mounted at the output end of the horizontal moving mechanism 4, and a scraper clamping baffle 6 disposed on the piston base 1 to clamp the film in cooperation with the air-blowing scraper 5. A connecting part 11 for connecting with a vertical moving mechanism is disposed on the piston base 1. A ball-head plunger 7 is disposed within the piston base 1 and the floating base plate 2. The horizontal moving mechanism 4 includes: a guide rail 41 mounted on the floating base plate 2; a slider 42 mounted on the guide rail 41; a nut 44 connected to the slider 42 via a lead screw connecting seat 43; a lead screw motor 45 mounted on the floating base plate 2; a lead screw 46 at the output end of the lead screw motor 45; and the lead screw 46 engaging with the nut 44. At least one first photoelectric switch 12 is mounted on the piston base 1, and a first light-shielding plate 13, cooperating with the first photoelectric switch 12, is mounted on the floating base plate 2 to detect the movement position of the floating base plate 2. A second light-shielding plate 14 is mounted on the nut 44 or the lead screw connecting seat 43, and a second photoelectric switch 15, cooperating with the second light-shielding plate 14, is mounted on the floating base plate 2 to detect the movement position of the air-blowing blade 5. The air-blowing blade 5 includes a frame 51, on which a blade head 52 is mounted, and at least one side of the blade head 52 has an air-blowing port 53. The frame 51 is provided with a clamping surface 54 that cooperates with the shovel clamping baffle 6, and the bottom of the frame 51 is provided with an abutment surface 55 that contacts the platform. The vertical distance between the blade of the cutter head 52 and the abutment surface 55 is the thickness of the product after film removal. The first photoelectric switch 12 is mounted on the piston base 1 via a photoelectric height adjustment block 8.

[0021] Among them, the piston base 1, as the basic support component of the mechanism, is the core of the installation and load-bearing of the entire film-tearing mechanism. On the one hand, it provides a stable installation benchmark for multiple components such as the floating base plate 2, the shovel clamp baffle 6, and the first photoelectric switch 12. Through its own structure, it integrates the components into a whole, ensuring the structural stability of the mechanism during operation and avoiding operational deviations caused by the scattered installation of components. On the other hand, the connecting part 11 set on the piston base 1 can be precisely connected with the external vertical moving mechanism, enabling the entire film-tearing mechanism to move flexibly in the vertical direction, meeting the action requirements of "descending to contact the material - rising to tear the film - moving to the waste area" during the film-tearing process. This provides a basis for the mechanism to adapt to the material position adjustment in different production scenarios. At the same time, its overall structural strength can withstand various forces during the operation of the mechanism, such as the driving force of the horizontal moving mechanism 4 and the contact force between the air blowing shovel 5 and the material, ensuring the long-term stable operation of the mechanism and reducing the problem of reduced film-tearing accuracy caused by base deformation.

[0022] The floating base plate 2 is a key component for achieving flexible contact between the mechanism and the material. It is installed inside the piston base 1 and forms a relatively movable mating relationship with the piston base 1. Its core function is to support the horizontal moving mechanism 4 and the air-blowing blade 5, and through cooperation with the buffer spring 3 and the ball-head plunger 7, it achieves adaptive adjustment of the material contact pressure. When the mechanism descends to contact the material, the floating base plate 2 can make slight displacements according to the flatness of the material surface and the contact pressure, avoiding problems such as crushing and deformation of the material (such as flexible printed circuit boards FPC) due to rigid contact. At the same time, the first light-shielding plate 13 installed on the floating base plate 2 can cooperate with the first photoelectric switch 12 on the piston base 1 to provide real-time feedback on its own movement position, providing a precise signal for the mechanism to determine whether it has reached the initial position of film tearing, ensuring the consistency of the starting position of each film tearing action, reducing situations such as missed tearing and incomplete film tearing caused by positional deviation, and improving the stability of film tearing quality.

[0023] The buffer spring 3, installed between the piston base 1 and the floating base plate 2, is the core elastic component for achieving flexible contact. Its main function is to buffer the impact force between the floating base plate 2 and the piston base 1 when the mechanism descends. When the mechanism descends via the vertical moving mechanism and the air-blowing blade 5 contacts the material, the material generates a reaction force on the air-blowing blade 5. This force is transmitted to the floating base plate 2 through the horizontal moving mechanism 4. The buffer spring 3 absorbs part of the impact force through its own compression deformation, gradually slowing the descent speed of the floating base plate 2 and preventing the air-blowing blade 5 from scratching the material surface or damaging the blade head 52 due to excessive impact force. Simultaneously, the elastic restoring force of the buffer spring 3 provides stable support for the floating base plate 2, ensuring that it does not sway excessively due to the operation of the horizontal moving mechanism 4 during the film-tearing process. This maintains the stability of the air-blowing blade 5 as it moves horizontally, thereby ensuring the accuracy of the blade lifting the film and reducing the problem of film-tearing position deviation caused by swaying.

[0024] The horizontal movement mechanism 4 is a power transmission component that drives the air-blowing blade 5 to achieve precise horizontal movement. It consists of a guide rail 41, a slider 42, a lead screw connecting seat 43, a nut 44, a lead screw motor 45, and a lead screw 46, and is mounted as a whole on the floating base plate 2. Its working principle is as follows: After the lead screw motor 45 is started, its output end drives the lead screw 46 to rotate. Since the lead screw 46 and the nut 44 are threadedly engaged, the rotational motion of the lead screw 46 is converted into the horizontal linear motion of the nut 44. The nut 44 drives the slider 42 to slide along the guide rail 41 through the lead screw connecting seat 43. The air-blowing blade 5 is mounted on the relevant connecting structure of the slider 42, ultimately realizing the horizontal movement of the air-blowing blade 5. In terms of function, the horizontal moving mechanism 4 provides a stable and precise horizontal driving force for the air-blowing scraper 5. The cooperation between the guide rail 41 and the slider 42 ensures the straightness of the moving trajectory, preventing the air-blowing scraper 5 from deviating during horizontal movement and ensuring that the cutter head 52 can accurately scrape up a corner of the film to be torn. The screw motor 45 can adjust the moving speed of the air-blowing scraper 5 by controlling the rotation speed, adapting to film materials of different thicknesses and viscosities. For example, for highly viscous PI film, the moving speed can be reduced, giving the cutter head 52 enough time to scrape up the film corner and reduce the possibility of film breakage. At the same time, the mechanism has high transmission efficiency and low operating noise, which can meet the requirements of fully automated production workshops for equipment operating efficiency and noise control, improve the overall production rhythm, and reduce noise pollution in the workshop.

[0025] The air-blowing scraper 5 is a component that directly contacts the material and completes the core actions of "scraping the film - blowing air - clamping the film". It consists of a frame 51, a cutter head 52, an air blowing port 53, a clamping surface 54, and a contact surface 55. The frame 51 serves as the main structure of the air-blowing scraper 5, providing a mounting carrier for components such as the blade head 52 and the air inlet 53. Simultaneously, through its connection with the horizontal moving mechanism 4, it achieves synchronous movement with the slider 42. The blade head 52 is the actuator for the film scraping action. Its sharp blade, angled precisely, easily inserts into the gap between the material and the film, scraping up a corner of the film, laying the foundation for subsequent air blowing and film tearing actions. The vertical distance between the blade of the blade head 52 and the contact surface 55 is set to the thickness of the product after film tearing. This design precisely controls the scraping depth, preventing the blade head 52 from excessively penetrating and scratching the material, ensuring the integrity of the product after film tearing. The air inlet 53 is located at least on one side of the blade head 52. After the blade head 52 scrapes up a corner of the film, an external air source blows air through the air inlet 53. The airflow further lifts the scraped corner of the film, allowing the film and material to... Surface separation reduces the likelihood of the film re-adhering to the material due to adhesion. Simultaneously, the airflow cleans tiny impurities from the material surface, preventing them from affecting subsequent film tearing or product quality. The clamping surface 54 cooperates with the shovel clamping baffle 6 on the piston base 1. When the film is blown up, the clamping surface 54 and the shovel clamping baffle 6 form a clamping structure, fixing the film between them. This provides a stable clamping force for the subsequent film tearing mechanism to rise and tear the film, preventing the film from falling off during the tearing process. The contact surface 55 is the part where the air-blowing shovel 5 contacts the material adsorption platform. Its flatness directly affects the stability of the contact between the air-blowing shovel 5 and the material. The tight contact between the contact surface 55 and the platform prevents airflow leakage from the contact gap, ensuring the utilization rate of the airflow blown from the air outlet 53. It also provides stable support for the blade head 52, ensuring that the blade head 52 does not deform due to uneven force during film tearing.

[0026] The baffle plate 6 is installed on the piston base 1 and works in conjunction with the clamping surface 54 of the air-blowing blade 5. It is a key component for clamping and fixing the film. Its main function is to form a clamping force together with the clamping surface 54 during the film tearing process, firmly fixing the film blown up by the air outlet 53. When the film tearing mechanism rises through the vertical moving mechanism, the clamped film can separate from the material as the mechanism rises, completing the film tearing action. The position and angle of the baffle plate 6 are precisely designed to ensure a uniform gap with the clamping surface 54, avoiding film detachment due to excessive gap or film breakage due to insufficient gap. At the same time, the surface of the baffle plate 6 is smoothed to reduce the friction between the film and the baffle surface, preventing film breakage due to excessive friction during tearing, ensuring that the film can be completely torn from the material and conveyed to the waste area, thus improving the success rate of film tearing.

[0027] The ball-head plunger 7 is installed between the piston base 1 and the floating base plate 2, working in conjunction with the buffer spring 3 to optimize the movement stability and positioning accuracy of the floating base plate 2. Its function is mainly reflected in two aspects: First, it assists in supporting the floating base plate 2. The ball head of the ball-head plunger 7 contacts the floating base plate 2, providing multi-point support and preventing the floating base plate 2 from shifting or tilting in the horizontal direction, ensuring the trajectory accuracy of the horizontal moving mechanism 4 during operation. Second, it achieves precise positioning of the floating base plate 2. When the mechanism descends to contact the material, after the floating base plate 2 moves to the appropriate position, the elastic force of the ball-head plunger 7 stabilizes the floating base plate 2 in that position, reducing the slight shaking of the floating base plate 2 caused by the elastic deformation of the buffer spring 3. This ensures accurate detection by the first photoelectric switch 12 and the first light-shielding plate 13, thereby ensuring that the air-blowing blade 5 accurately contacts the material at the position where the film to be peeled, improving the consistency of film peeling.

[0028] The photoelectric height adjustment block 8 is mounted on the piston base 1 to fix the first photoelectric switch 12 and adjust its height. Its core function is to adjust the detection height of the first photoelectric switch 12 according to different material thicknesses or film types, ensuring that the first photoelectric switch 12 can accurately engage with the first light-shielding plate 13 on the floating base plate 2, thus achieving accurate detection of the floating base plate 2's movement position. For example, when processing thicker materials, the descent of the floating base plate 2 will decrease. In this case, by adjusting the photoelectric height adjustment block 8 to lower the height of the first photoelectric switch 12, the first photoelectric switch 12 can still accurately detect the first light-shielding plate 13, avoiding malfunctions due to undetected signals. Simultaneously, the structural design of the photoelectric height adjustment block 8 facilitates operation, allowing height adjustment without disassembling other components, improving the mechanism's adaptability to different materials, reducing equipment debugging time, and meeting the needs of rapid changeover in fully automated production workshops.

[0029] The first photoelectric switch 12 is mounted on the piston base 1 via the photoelectric height adjustment block 8, and cooperates with the first light-shielding plate 13 on the floating base plate 2 to form a floating base plate 2 position detection system. Its function is to detect the movement position of the floating base plate 2 in real time, transmit position signals to the mechanism control system, and determine whether the mechanism has reached the initial film-tearing position. When the mechanism descends via the vertical moving mechanism, the floating base plate 2 descends with the mechanism. When the first light-shielding plate 13 moves to block the light path of the first photoelectric switch 12, the first photoelectric switch 12 sends a "position" signal to the control system. The control system then controls the vertical moving mechanism to stop descending and starts the horizontal moving mechanism 4 to begin the film-scraping action. If the first photoelectric switch 12 does not detect the signal from the first light-shielding plate 13, it indicates that the mechanism has not descended to the appropriate position. The control system will issue an alarm or control the mechanism to continue descending to avoid film-scraping failure due to improper positioning. This detection system has a fast response speed and high detection accuracy, effectively avoiding errors in manual position judgment, improving the automation and accuracy of the film-tearing action, and reducing production accidents caused by human error.

[0030] The first light-shielding plate 13 is mounted on the floating base plate 2 and is a matching detection component for the first photoelectric switch 12. Its function is to provide a detection signal to the first photoelectric switch 12 by blocking its light path. The size and installation position of the first light-shielding plate 13 are precisely designed to ensure that it accurately blocks the light path of the first photoelectric switch 12 when the floating base plate 2 moves to the initial position of the film-tearing mechanism, and that the blocking area is sufficient to avoid signal misjudgment due to incomplete blocking of the light path caused by vibration or slight displacement. At the same time, the first light-shielding plate 13 is made of wear-resistant and high-temperature-resistant materials, which can adapt to the harsh environment of the production workshop and is not easily deformed or damaged during long-term use, ensuring the stability of the detection signal and thus ensuring the reliability of the mechanism's operation.

[0031] The second light-shielding plate 14 is installed on the nut 44 or the lead screw connecting seat 43, and cooperates with the second photoelectric switch 15 on the floating base plate 2 to form a horizontal position detection system for the air-blowing scraper 5. Its function is to provide real-time feedback on the horizontal movement position of the air-blowing scraper 5, ensuring that the air-blowing scraper 5 can accurately complete the "scraping film-resetting" action. When the horizontal moving mechanism 4 drives the air-blowing blade 5 to move towards the material to scrape the film, the second light-blocking plate 14 moves synchronously with the nut 44 or the lead screw connecting seat 43. When the air-blowing blade 5 scrapes up the film corner to the preset position, the second light-blocking plate 14 blocks the light path of the second photoelectric switch 15. The second photoelectric switch 15 sends a "film scraping in place" signal to the control system. The control system then controls the air blowing port 53 to start blowing air and prepares for the subsequent film clamping action. After the film is torn off, the horizontal moving mechanism 4 drives the air-blowing blade 5 to reset. When the second light-blocking plate 14 leaves the light path of the second photoelectric switch 15 or moves to the reset detection position, the second photoelectric switch 15 sends a "reset in place" signal. The control system controls the horizontal moving mechanism 4 to stop running, preparing for the next film tearing action. This detection system can effectively control the movement stroke of the air-blowing blade 5, avoiding damage to the blade head 52 due to excessive movement or failure to scrape the film due to insufficient movement, thus improving the accuracy and safety of the mechanism's operation.

[0032] The second photoelectric switch 15 is installed on the floating base plate 2 as a matching detection component of the second light-shielding plate 14. Its function is to receive the shading signal from the second light-shielding plate 14, convert the light signal into an electrical signal, and transmit it to the control system to realize real-time monitoring of the horizontal position of the air-blowing blade 5. The second photoelectric switch 15 has the characteristics of accurate detection distance and strong anti-interference ability. It can work stably in environments such as dust and light changes in the production workshop, avoiding signal distortion caused by environmental factors. At the same time, its fast response speed can promptly reflect the position change of the air-blowing blade 5, ensuring that the control system can quickly adjust the operating status of the horizontal moving mechanism 4. For example, when the air-blowing blade 5 is about to reach the limit position, it can decelerate in advance to avoid hard collisions, extend the service life of the mechanism, and reduce equipment maintenance costs.

[0033] After the material is placed on the adsorption platform, the vertical moving mechanism connected to the piston base 1 connection 11 is activated, driving the entire film-tearing mechanism to descend. During the descent, the floating base plate 2 moves synchronously with the mechanism. When the contact surface 55 of the air-blowing blade 5 contacts the material, the material generates a reaction force, pushing the floating base plate 2 to move slightly upward relative to the piston base 1. The buffer spring 3 is compressed to absorb the impact force, and the ball-head plunger 7 assists in supporting the floating base plate 2 to maintain stability.

[0034] When the first light-shielding plate 13 on the floating base plate 2 moves into the light path of the first photoelectric switch 12 on the piston base 1, the first photoelectric switch 12 sends a "positioned" signal, and the vertical moving mechanism stops descending. Subsequently, the lead screw motor 45 of the horizontal moving mechanism 4 starts, driving the lead screw 46 to rotate. The nut 44 drives the slider 42 to slide along the guide rail 41 through the lead screw connecting seat 43, thereby driving the air blowing blade 5 to move horizontally, and the blade head 52 scoops up a corner of the material to be peeled off.

[0035] At this time, air is blown through the air inlet 53 of the air-blowing blade 5, further lifting the scooped-up film. When the second light-blocking plate 14 blocks the second photoelectric switch 15, it indicates that the air-blowing blade 5 is in position. The film-tearing assembly moves forward, clamping the film between the clamping surface 54 of the air-blowing blade 5 and the blade clamping baffle 6. Then, the vertical moving mechanism drives the film-tearing mechanism to rise, tearing the film from the material. Subsequently, it moves to the waste area, the clamping structure releases, and the film falls into the waste area, completing one film-tearing process. The mechanism then resets to prepare for the next operation.

[0036] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A film-tearing mechanism with an air-blowing scraper, characterized in that, Includes a piston base (1), a floating base plate (2) is provided inside the piston base (1), a buffer spring (3) is provided inside the piston base (1) and the floating base plate (2), a horizontal moving mechanism (4) is provided on the floating base plate (2), an air blowing blade (5) is installed at the output end of the horizontal moving mechanism (4), and a blade clamping baffle (6) is provided on the piston base (1) to clamp the membrane in cooperation with the air blowing blade (5).

2. The film-tearing mechanism with air-blowing blade according to claim 1, characterized in that, The piston base (1) is provided with a connecting part (11) for connecting with the vertical moving mechanism.

3. The film-tearing mechanism with air-blowing blade according to claim 1, characterized in that, Ball-head plungers (7) are provided inside the piston base (1) and the floating base plate (2).

4. The film-tearing mechanism with air-blowing scraper according to claim 1, characterized in that, The horizontal moving mechanism (4) includes: a guide rail (41) mounted on the floating base plate (2), a slider (42) provided on the guide rail (41), a nut (44) connected to the slider (42) through a lead screw connecting seat (43), a lead screw motor (45) mounted on the floating base plate (2), a lead screw (46) provided at the output end of the lead screw motor (45), and the lead screw (46) cooperating with the nut (44).

5. The film-tearing mechanism with air-blowing scraper according to claim 1, characterized in that, At least one first photoelectric switch (12) is provided on the piston base (1), and a first light-shielding plate (13) is provided on the floating base plate (2) to cooperate with the first photoelectric switch (12) to detect the moving position of the floating base plate (2).

6. The film-tearing mechanism with air-blowing scraper according to claim 4, characterized in that, A second light-shielding plate (14) is provided on the nut (44) or the lead screw connecting seat (43), and a second photoelectric switch (15) is provided on the floating base plate (2) to detect the moving position of the air blowing blade (5) in cooperation with the second light-shielding plate (14).

7. The film-tearing mechanism with air-blowing blade according to claim 1, characterized in that, The air-blowing shovel (5) includes a frame (51), on which a blade (52) is mounted, and the blade (52) has an air-blowing port (53) on at least one side.

8. The film-tearing mechanism with air-blowing blade according to claim 7, characterized in that, The frame (51) is provided with a clamping surface (54) that cooperates with the shovel clamp baffle (6), and the bottom of the frame (51) is provided with an abutment surface (55) that contacts the platform.

9. The film-tearing mechanism with air-blowing scraper according to claim 8, characterized in that, The vertical distance between the blade of the cutter head (52) and the contact surface (55) is the thickness of the product after the film is torn off.

10. The film-tearing mechanism with air-blowing scraper according to claim 5, characterized in that, The first photoelectric switch (12) is mounted on the piston base (1) via a photoelectric height adjustment block (8).

Images