Novel film tearing mechanism

Abstract

The invention relates to the technical field of film tearing, in particular to a novel film tearing mechanism which comprises a mounting frame, a connecting plate, an air cylinder, a connecting frame, a clamping jaw, a suction nozzle and the like. A connecting plate is fixedly connected to the mounting frame; the connecting plate is connected with an air cylinder; the telescopic end of the cylinder is fixedly connected with a connecting frame; a clamping jaw is fixedly connected to the connecting frame; a suction nozzle is connected to the connecting plate, and an air channel I is formed in the suction nozzle; an inclined part I is arranged on one side, facing the suction nozzle, of the clamping jaw; an inclined part II is arranged on one side, facing the clamping jaw, of the suction nozzle; an air passage II is formed in the lower part of the suction nozzle and is perpendicular to the inclined part II; and the air passage I is communicated with the air passage II. The edge of the protective film can be effectively and softly sucked up by utilizing the precise adsorption force generated by the air channel I perpendicular to the object under the millimeter-scale spacing, so that the possible unstable adsorption or damage to the film material, which is caused by an inclined adsorption structure, is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of film tearing, in particular to a novel film tearing mechanism. BACKGROUND

[0002] In the process of automation production, the protective film on the surface of the product needs to be peeled off efficiently and without damage before assembly. Although the existing film tearing technology can achieve the basic functions, it still has problems such as insufficient adsorption stability, limited structural adaptability, and complicated film material processing. For example, the film tearing device (CN113044338B) disclosed in Chinese patent avoids the frequent replacement of the adhesive roller by adsorbing the protective film through an inclined start angle vacuum hole. However, the inclined design causes the adsorption force direction to be non-perpendicular to the film surface, making it difficult to quickly and stably adsorb the protective film, especially for film materials with high flatness requirements, which are prone to air leakage or adsorption failure. In addition, in the traditional design, once the film tearing assembly is adjusted to the correct position, it will be fixed and cannot be adjusted in angle or position again. When the production requirements change, it may be necessary to stop the machine and re-adjust the equipment. This not only increases the adjustment time, but also affects the production efficiency. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, such as the inclined design of the start angle vacuum hole, the adsorption force direction is non-perpendicular to the film surface, making it difficult to quickly and stably adsorb the protective film, especially for film materials with high flatness requirements, which are prone to air leakage or adsorption failure, the present application provides a novel film tearing mechanism.

[0004] The technical solution of the present application is as follows: a novel film tearing mechanism, comprising a mounting frame and a connecting plate; the connecting plate is fixedly connected to the mounting frame; further comprising a gas cylinder, a connecting frame, a clamping jaw, and a suction nozzle; the gas cylinder is connected to the connecting plate; the extension end of the gas cylinder is fixedly connected to the connecting frame; the clamping jaw is fixedly connected to the connecting frame; the suction nozzle is connected to the connecting plate, and a gas passage one is arranged in the suction nozzle; an inclined part one is arranged on one side of the clamping jaw facing the suction nozzle; an inclined part two is arranged on one side of the suction nozzle facing the clamping jaw; a gas passage two is opened at the lower part of the suction nozzle, and the gas passage two is perpendicular to the inclined part two; the gas passage one and the gas passage two are in communication.

[0005] As a further preferred solution, a plurality of anti-slip grooves are opened on the inclined part one.

[0006] As a further preferred solution, the surface of the inclined part one has an anti-sticking coating.

[0007] As a further preferred solution, it further comprises a hollow rotating platform; the mounting frame is fixedly connected to the hollow rotating platform; the rotating shaft of the hollow rotating platform is fixedly connected to the connecting plate.

[0008] As a further preferred solution, it further comprises an electric sliding rail and an electric sliding block; the electric sliding rail is fixedly connected to the connecting plate; the electric sliding block is slidingly connected to the electric sliding rail; the electric sliding block is fixedly connected to the gas cylinder; the electric sliding block is fixedly connected to the suction nozzle.

[0009] As a further preferred scheme, it further comprises mounting plates, limiting rods, retaining rings, magnetic plate one, triangular prism, spring telescopic rods and magnetic plate two; two mounting plates are symmetrically arranged on the suction nozzle; a plurality of limiting rods are respectively arranged on the two mounting plates; a retaining ring is respectively arranged at the lower end of each limiting rod; a magnetic plate one is slidably connected to all the limiting rods on the same mounting plate; the lower side of the magnetic plate one is in contact with the retaining ring; the two retaining rings are jointly connected with the triangular prism; the triangular prism is slidably connected with the inclined part two; the lower side of the triangular prism is flush with the lower side of the suction nozzle; two spring telescopic rods are symmetrically arranged on the clamping jaw; a magnetic plate two is respectively arranged at the telescopic end of each spring telescopic rod.

[0010] As a further preferred scheme, the outer surface of the limiting rod is smooth.

[0011] As a further preferred scheme, the triangular prism is made of metal.

[0012] As a further preferred scheme, the triangular prism is provided with air passages three; the air passages three are in communication with the air passages two.

[0013] As a further preferred scheme, it further comprises an intercepting net; the lower part of the air passage is provided with the intercepting net.

[0014] The present application has the following advantages: first, the precise adsorption force generated by the air passage one perpendicular to the object at a millimeter level spacing can effectively and gently lift the edge of the protective film, avoiding the instability of the inclined adsorption structure or the damage to the film material; second, the triangular prism with air passages three is innovatively arranged as a transition adsorption mechanism, which ingeniously combines the dual effects of electrostatic adsorption and pneumatic adsorption, ensuring that even for protective film materials with weak electrostatic adsorption force, the lifted protective film can be reliably guided and temporarily fixed before the complete exposure of the air passage two, creating the necessary conditions for the subsequent clamping action of the clamping jaw, thereby solving the problem of adsorption failure caused by the long distance of the inclined air passage two; third, through the magnetic control linkage of the air cylinder, spring telescopic rod, magnetic plate two and mounting plate, the automatic lifting of the triangular prism is realized, which can assist in positioning at the initial stage of adsorption and give way to the position before clamping, with smooth action process and high automation degree; in addition, the configuration of the hollow rotating platform and the electric sliding rail endows the film tearing assembly with multi-angle working ability and flexible avoidance space, greatly expanding its application range; finally, the intercepting net arranged at the lower part of the air passage is a key error prevention design, which can effectively prevent the protective film from being excessively sucked into the air passage, ensuring that there is always film to be adsorbed below the triangular prism, guaranteeing the smooth progress of the subsequent clamping and film tearing actions, and improving the stability of the whole process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1This is a first-view three-dimensional structural schematic diagram of the novel film-tearing mechanism of the present invention; Figure 2 This is a second perspective three-dimensional structural diagram of the novel film-tearing mechanism of the present invention; Figure 3 This is a schematic diagram of the mounting plate, limiting rod, magnetic plate 1, and triangular prism three-dimensional structure of the novel film-tearing mechanism of the present invention; Figure 4 This is a front view of the gripper and suction nozzle of the novel film-tearing mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the triangular prism and intercepting net of the novel film-tearing mechanism of the present invention; Figure 6 This is a cross-sectional view of the suction nozzle and triangular prism three-dimensional structure of the novel film-tearing mechanism of the present invention.

[0016] The components are: 1-mounting bracket, 2-connecting plate, 3-cylinder, 4-connecting bracket, 5-gripper, 501-inclined part one, 502-groove, 6-suction nozzle, 601-air passage one, 602-inclined part two, 603-air passage two, 7-hollow rotating platform, 8-electric slide rail, 9-electric slider, 21-mounting plate, 22-limiting rod, 23-retaining ring, 24-magnetic plate one, 25-triangular prism, 2501-air passage three, 26-spring telescopic rod, 27-magnetic plate two, 31-interception net. Detailed Implementation

[0017] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0018] Example 1: A novel film-tearing mechanism, such as Figures 1-6 As shown, it includes a mounting bracket 1 and a connecting plate 2; the connecting plate 2 is bolted to the mounting bracket 1; It also includes a cylinder 3, a connecting frame 4, a gripper 5, and a suction nozzle 6; the cylinder 3 is connected to the connecting plate 2; the connecting frame 4 is fixedly connected to the telescopic end of the cylinder 3; the gripper 5 is bolted to the connecting frame 4; the suction nozzle 6 is connected to the connecting plate 2, and an air passage 601 is provided inside the suction nozzle 6; an inclined part 501 is provided on the side of the gripper 5 facing the suction nozzle 6; an inclined part 602 is provided on the side of the suction nozzle 6 facing the gripper 5; an air passage 603 is opened at the lower part of the suction nozzle 6, and the air passage 603 is perpendicular to the inclined part 602; the air passage 601 and the air passage 603 are connected.

[0019] To clamp the protective film, several anti-slip grooves are provided on the inclined part 501.

[0020] The inclined part 501 has an anti-stick coating to prevent the protective film from sticking to the inclined part 501 after it is removed.

[0021] It also includes a hollow rotating platform 7; the mounting bracket 1 is bolted to the hollow rotating platform 7; the rotating shaft of the hollow rotating platform 7 is fixedly connected to the connecting plate 2.

[0022] It also includes an electric slide rail 8 and an electric slider 9; the electric slide rail 8 is bolted to the connecting plate 2; the electric slider 9 is slidably connected to the electric slide rail 8; the electric slider 9 is fixedly connected to the cylinder 3; the electric slider 9 is fixedly connected to the suction nozzle 6.

[0023] by Figure 1 Based on the viewing angle, the side where mounting bracket 1 is located is the left side.

[0024] Before use, install the mounting bracket 1 on the external moving mechanism and connect the suction nozzle 6 to the external air pump via a hose. During use, control the moving mechanism to move the mounting bracket 1 and its associated components to the edge area of ​​the object to be peeled off, where the air passage 601 of the suction nozzle 6 is perpendicular to the object, close to the outer edge of the object, and approximately one millimeter away from the protective film. Then, start the external air pump. The pump draws air through air passage 601, causing the suction nozzle 6 to generate suction and lift the protective film, causing it to curl relative to the object. Air passage 603 is located at the bottom of the suction nozzle 6, perpendicular to the inclined portion 602, and also generates suction, thereby lifting the object already lifted by air passage 601. The protective film located to the left of airway 601 is adsorbed and attached to the inclined part 602. Then, the control cylinder 3 drives the connecting frame 4 and the gripper 5 to move towards the nozzle 6. The inclined part 501 of the gripper 5 presses the protective film firmly onto the inclined part 602, thus the gripper 5 and the nozzle 6 together hold the protective film. To increase the friction to clamp the protective film, several anti-slip grooves are opened on the inclined part 501. Then, the external moving mechanism is controlled to drive the mounting frame 1 and its related components to move, so that the gripper 5 and the nozzle 6 move the clamped protective film, thereby tearing the protective film off the object. Airway 601 is perpendicular to the object and about one millimeter away from the protective film to ensure that the protective film can be smoothly adsorbed when suction is generated.

[0025] The mounting bracket 1 is bolted to a hollow rotating platform 7. Activating the hollow rotating platform 7 drives the connecting plate 2 and its associated components to rotate at multiple angles, thereby increasing the working range of the film-tearing component and improving its applicability. The hollow rotating platform 7 also allows the film-tearing assembly to rotate to an idle position when not in use, avoiding space occupation and providing more space for other component operations and optimizing equipment layout. When the film-tearing assembly is not working, the electric slide rail 8 controls the electric slider 9 and its associated components to move upwards away from the object, thereby enhancing the component's flexibility. Additionally, the electric slide rail 8 can drive the electric slider 9 and its associated components downwards towards the protective film to adjust and reduce the distance between the air passage 601 and the protective film, ensuring that the air passage 601 can smoothly adsorb the protective film.

[0026] Example 2: Based on Example 1, such as Figures 1-6 As shown, it also includes a mounting plate 21, a limiting rod 22, a retaining ring 23, a magnetic plate 24, a triangular prism 25, a spring telescopic rod 26, and a magnetic plate 27; two mounting plates 21 arranged symmetrically front and back are bolted to the suction nozzle 6; two limiting rods 22 are welded to the two mounting plates 21 respectively; a retaining ring 23 is welded to the lower end of each limiting rod 22; all the limiting rods 22 on the same plate are slidably connected to a magnetic plate 24; the lower side of the magnetic plate 24 contacts the retaining ring 23; the two retaining rings 23 are fixedly connected to a triangular prism 25; the triangular prism 25 is slidably connected to the inclined part 2 602; the lower side of the triangular prism 25 is flush with the lower side of the suction nozzle 6; two spring telescopic rods 26 arranged symmetrically front and back are fixedly connected to the gripper 5; a magnetic plate 27 is fixedly connected to the telescopic end of each spring telescopic rod 26.

[0027] The outer surface of the limiting rod 22 is smooth, which allows the magnetic plate 24 to slide on the limiting rod 22.

[0028] The triangular prism 25 is made of metal materials, such as aluminum or stainless steel, to enhance its electrostatic adsorption capacity for the protective film.

[0029] The triangular prism 25 has an air passage 3 2501; air passage 3 2501 is connected to air passage 2 603.

[0030] It also includes an interceptor net 31; an interceptor net 31 is installed at the lower part of the airway 601.

[0031] The lower end of air passage 2 603 is inclined and far from the protective film, making it difficult for air passage 2 603 to draw air and adhere the protective film located to the left of air passage 1 601 to the inclined part 2 602. Therefore, a triangular prism 25 is provided on the inclined part 2 602, with its lower side flush with the lower side of the nozzle 6. When the air pump draws air through air passage 1 601 of the nozzle 6, causing the nozzle 6 to generate suction and lift the protective film on the surface of the object, the protective film located to the left of air passage 1 601 will be attracted by the lower side of the triangular prism 25 due to static electricity.Figure 4 As shown, the cylinder 3 then controls the connecting frame 4 and gripper 5 to move towards the suction nozzle 6. The spring telescopic rod 26 and the second magnetic plate 27 will move together with the gripper 5. When the second magnetic plate 27 moves to contact the upper side of the mounting plate 21, the mounting plate 21 will abut against the limiting magnetic plate 27. Subsequently, the gripper 5 continues to move towards the suction nozzle 6, causing the spring telescopic rod 26 to be compressed and store force. The second magnetic plate 27 on the mounting plate 21 will attract the first magnetic plate 24 and the triangular prism 25 to slide upward on the limiting rod 22, thereby causing the triangular prism 25 to move away from the inclined part 602. During the removal process, the lower side of the triangular prism 25 moves upward along with the electrostatically adsorbed protective film. After the triangular prism 25 moves upward, the air... When the second air passage 603 is exposed, with the external air pump working, the second air passage 603 adsorbs the protective film onto the inclined part 602 to ensure that the inclined part 501 of the gripper 5 can press the protective film tightly onto the inclined part 602. After the film is peeled off, the control cylinder 3 drives the connecting frame 4 and the gripper 5 away from the suction nozzle 6 to move and reset. The second magnetic plate 27 moves away from the upper side of the mounting plate 21. Under the gravity of the first magnetic plate 24 and the triangular prism 25, the first magnetic plate 24 and the triangular prism 25 slide downward on the limit rod 22 to reset. The first magnetic plate 24 abuts against the retaining ring 23 again, and the lower side of the triangular prism 25 is flush with the lower side of the suction nozzle 6 again, in preparation for the next operation.

[0032] The outer surface of the limiting rod 22 is smooth, so that the magnetic plate 24 can slide on the limiting rod 22; the triangular prism 25 is made of metal, such as aluminum or stainless steel, to enhance the electrostatic adsorption capacity of the protective film.

[0033] The triangular prism 25 has an air passage 3 2501, which is connected to air passage 2 603. When the external air pump is started and air passage 1 601 generates suction, air passage 3 2501 will also generate suction, thereby adsorbing the protective film located to the left of air passage 1 601 onto the lower side of the triangular prism 25. In this way, even if the electrostatic force is weak (some materials of protective film are difficult to be electrostatically adsorbed), the lower side of the triangular prism 25 can still adsorb the protective film to ensure the smooth progress of the above work.

[0034] An intercepting net 31 is provided at the lower part of the airway 601 to prevent the airway 601 from sucking in the protective film, thereby avoiding the situation where there is no protective film on the lower side of the triangular prism 25, no protective film on the subsequent inclined part 602, and the protective film cannot be pressed and fixed on the inclined part 602 by the inclined part 501 of the gripper 5.

[0035] In summary, the present invention utilizes the precise adsorption force generated by the air passage 1 perpendicular to the object at millimeter-level intervals to effectively and gently lift the edge of the protective film, avoiding the instability or damage to the film material that may occur with tilted adsorption structures. Secondly, it innovatively incorporates a triangular prism with air passage 3 as a transitional adsorption mechanism. This design cleverly combines the dual effects of electrostatic and pneumatic adsorption, ensuring that even for protective film materials with weak electrostatic adsorption, the already lifted protective film can be reliably guided and temporarily fixed before air passage 2 is fully exposed for operation. This creates the necessary conditions for the subsequent clamping action of the grippers, thus solving the problem of adsorption failure due to the large distance of the tilted air passage 2 alone. The system addresses several issues. Firstly, the magnetic linkage of components such as the cylinder, spring telescopic rod, magnetic plate II, and mounting plate enables automatic lifting and lowering of the triangular prism. This allows for initial positioning during adsorption and clearing space before clamping, resulting in a smooth and highly automated workflow. Secondly, the configuration of the hollow rotating platform and electric slide rails provides the film-tearing assembly with multi-angle working capabilities and flexible clearance, significantly expanding its application range. Finally, the intercepting net located below the air passage is a crucial error-proofing design. It effectively prevents excessive inhalation of the protective film into the air passage, ensuring that there is always film available for adsorption below the triangular prism, guaranteeing smooth subsequent clamping and film-tearing actions, and improving the stability of the entire process.

[0036] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. A novel film-tearing mechanism, characterized in that: It includes a mounting bracket (1) and a connecting plate (2); the mounting bracket (1) is fixedly connected to the connecting plate (2); it also includes a cylinder (3), a connecting bracket (4), a gripper (5) and a suction nozzle (6); the connecting plate (2) is connected to the cylinder (3); the telescopic end of the cylinder (3) is fixedly connected to the connecting bracket (4); the connecting bracket (4) is fixedly connected to the gripper (5); the connecting plate (2) is connected to the suction nozzle (6), and the suction nozzle (6) is provided with an air passage (601); the gripper (5) is provided with an inclined part (501) on the side facing the suction nozzle (6); the suction nozzle (6) is provided with an inclined part (602) on the side facing the gripper (5); the suction nozzle (6) is provided with an air passage (603) at the bottom, and the air passage (603) is perpendicular to the inclined part (602); the air passage (601) and the air passage (603) are connected.

2. The novel film-tearing mechanism according to claim 1, characterized in that: Several anti-slip grooves are opened on the inclined part (501).

3. The novel film-tearing mechanism according to claim 2, characterized in that: The inclined part (501) has an anti-stick coating on its surface.

4. The novel film-tearing mechanism according to claim 3, characterized in that: It also includes a hollow rotating platform (7); the mounting bracket (1) is fixedly connected to the hollow rotating platform (7); the rotating shaft of the hollow rotating platform (7) is fixedly connected to the connecting plate (2).

5. A novel film-tearing mechanism according to claim 4, characterized in that: It also includes an electric slide rail (8) and an electric slider (9); the electric slide rail (8) is fixedly connected to the connecting plate (2); the electric slider (9) is slidably connected to the electric slide rail (8); the electric slider (9) is fixedly connected to the cylinder (3); the electric slider (9) is fixedly connected to the suction nozzle (6).

6. A novel film-tearing mechanism according to claim 5, characterized in that: It also includes a mounting plate (21), a limiting rod (22), a retaining ring (23), a magnetic plate one (24), a triangular prism (25), a spring telescopic rod (26), and a magnetic plate two (27); two symmetrically arranged mounting plates (21) are fixedly attached to the suction nozzle (6); several limiting rods (22) are fixedly attached to the two mounting plates (21); a retaining ring (23) is fixedly attached to the lower end of each limiting rod (22); all the limiting rods (22) on the same plate are slidably connected to a magnetic plate one (24); the lower side of the magnetic plate one (24) is in contact with the retaining ring (23); the two retaining rings (23) are slidably connected to a triangular prism (25); the triangular prism (25) is slidably connected to the inclined part two (602); the lower side of the triangular prism (25) is flush with the lower side of the suction nozzle (6); two symmetrically arranged spring telescopic rods (26) are fixedly attached to the gripper (5); a magnetic plate two (27) is fixedly attached to the telescopic end of each of the spring telescopic rods (26).

7. A novel film-tearing mechanism according to claim 6, characterized in that: The outer surface of the limit rod (22) is smooth.

8. A novel film-tearing mechanism according to claim 7, characterized in that: The triangular prism (25) is made of metal.

9. A novel film-tearing mechanism according to claim 8, characterized in that: The triangular prism (25) has an air passage three (2501); the air passage three (2501) is connected to the air passage two (603).

10. A novel film-tearing mechanism according to claim 9, characterized in that: It also includes an intercepting net (31); an intercepting net (31) is provided at the lower part of the airway (601).

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