An oblique film tearing device for an adhesive film tearing machine

Abstract

The application relates to the technical field of film tearing machines, and discloses an oblique film tearing device for a sticky film tearing machine, which comprises an oblique film tearing turning plate, a rubber pressing roller, a pressing rod, a spring and a rubber belt guiding triangular plate, wherein: the oblique film tearing turning plate is arranged in a film tearing channel of the film tearing machine and is used for changing the running direction of the rubber belt; the rubber pressing roller is arranged near the oblique film tearing turning plate and is used for pressing the rubber belt; the pressing rod is connected with the rubber pressing roller; the spring is connected with the pressing rod or the rubber pressing roller, so that the rubber pressing roller can be slightly moved up and down; and the rubber belt guiding triangular plate is arranged downstream of the oblique film tearing turning plate and is used for guiding the rubber belt and keeping the included angle between the rubber belt and the oblique film tearing turning plate stable. The application has the effects of prolonging the service life of the motor and the stability of the whole film tearing process.

Description

Technical Field

[0001] This application relates to the field of film peeling machine technology, and in particular to an oblique film peeling device for an adhesive film peeling machine. Background Technology

[0002] In the field of automated film-removing equipment, using adhesive tape to remove and peel off the protective film on the surface of workpieces such as perforated plates and micro-perforated plates is a common technique.

[0003] In the prior art, such as the perforated plate film tearing machine disclosed in Chinese invention patent CN116714857A, the film is to be torn by setting a film reversing limiting mechanism and using a triangular guide plate to reverse the direction of the film.

[0004] However, the triangular guide plate in this solution mainly focuses on reversing. During long-term operation, as the waste film becomes thicker and thicker on the winding assembly, the actual included angle of the tape when passing through the triangular guide plate will change dynamically.

[0005] This change can cause unstable tension in the tape travel path, which in turn causes fluctuations in the load on the film winding motor and unstable output current. In the long run, this will affect the service life of the motor and the stability of the entire film tearing process. Utility Model Content

[0006] In order to improve the service life of the motor and the stability of the entire film-tearing process, this application provides an oblique film-tearing device for an adhesive film-tearing machine.

[0007] The technical solution provided in this application for an oblique film-tearing device for an adhesive film-tearing machine is as follows: An inclined film-tearing device for an adhesive film-tearing machine includes an inclined film-tearing deflector plate, a rubber pressure roller, a pressure rod, a spring, and a tape guide triangle plate, wherein: The inclined film-tearing deflector plate is installed in the film-tearing channel of the film-tearing machine to change the direction of travel of the tape. The rubber pressure roller is positioned near the inclined film-tearing deflector plate and is used to press the tape tightly. The pressure rod is connected to the rubber pressure roller, and the spring is connected to the pressure rod or the rubber pressure roller, so that the rubber pressure roller can move up and down slightly; The tape guide triangle is located downstream of the inclined film-tearing deflector plate to guide the tape and keep the angle between the tape and the inclined film-tearing deflector plate stable.

[0008] Optionally, a micro-motion sensor is also included, which is located near the pressure bar and is activated when the pressure bar moves due to the micro-motion of the rubber pressure roller.

[0009] Optionally, the inclined tear-off deflector plate has an inclined surface, and the tape is pulled out from the bottom of the inclined tear-off deflector plate and flipped along the inclined surface, so that the sticky side of the tape is flipped to the upper surface of the inclined tear-off deflector plate.

[0010] Optionally, the tape guide triangular plate is a triangular plate structure, fixedly installed on the film tearing machine frame, located between the inclined film tearing steering plate and the waste film recycling wheel of the film tearing machine.

[0011] Optionally, the spring is a compression spring that provides a downward clamping force, ensuring that the rubber roller remains in contact with the conveyor belt.

[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. The tape guide triangle plate uses a fixed edge as a rigid fulcrum to forcibly counteract the drift of the winding point caused by the increase in the waste film roll diameter, so that the working angle between the tape and the inclined tearing deflector plate remains unchanged. The film winding motor can maintain constant tension without frequent torque adjustment, and the output current is stable, which significantly extends the service life of the motor. 2. The compression spring transmits the continuous downward clamping force to the rubber pressure roller through the pressure rod, so that it moves up and down in real time with the thickness of the tape and the slight fluctuations on the surface. This ensures that the clamping force does not disappear instantly or overload, and also provides displacement signals for the micro-motion sensor. Once tape breakage, slack, or jamming occurs, the abnormal displacement is detected immediately, and the system can instantly alarm and stop the machine to avoid waste film spillage or equipment damage. 3. The inclined surface of the inclined film-tearing deflector plate forces the peeled film tape to rotate 180°, so that the sticky side faces upward and carries the waste film. With the constant guidance of the downstream triangular plate, the tape always enters the waste film recycling wheel with the same wrap angle and direction, so that the waste film is wound flat, without wrinkles or deviation, improving the reliability of subsequent waste discharge and the yield of finished products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0014] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0015] Figure 3 This is a schematic diagram illustrating the relative positions of the micro-motion sensor and the frame in an embodiment of this application.

[0016] Figure 4 yes Figure 3 Enlarged schematic diagram of part B.

[0017] Figure 5 This is a schematic diagram illustrating the relative positions of the rubber roller and the micro-motion sensor in an embodiment of this application.

[0018] Figure 6 yes Figure 5 An enlarged schematic diagram of section C.

[0019] Explanation of reference numerals in the attached figures: 1. Inclined film-tearing steering plate; 11. Inclined surface; 2. Rubber pressure roller; 3. Pressure bar; 4. Spring; 5. Belt guide triangle; 6. Belt; 7. Micro-motion sensor; 8. Frame. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0021] This application discloses an oblique film-tearing device for an adhesive film-tearing machine.

[0022] An oblique film-tearing device for an adhesive film-tearing machine includes an oblique film-tearing deflector plate 1, a rubber pressure roller 2, a pressure rod 3, a spring 4, and a tape guide triangle 5. The oblique film-tearing deflector plate 1 is disposed within the film-tearing channel of the film-tearing machine to change the travel direction of the tape 6. The rubber pressure roller 2 is arranged adjacent to the oblique film-tearing deflector plate 1 to apply pressure to the tape 6. The pressure rod 3 is connected to the rubber pressure roller 2, and the spring 4 is connected to either the pressure rod 3 or the rubber pressure roller 2, allowing the rubber pressure roller 2 to make micro-movements in the vertical direction according to changes in the thickness of the tape 6. The tape guide triangle 5 is disposed downstream of the oblique film-tearing deflector plate 1 to guide the tape 6 and ensure that the angle between the tape 6 and the oblique film-tearing deflector plate 1 remains stable during operation.

[0023] The oblique tearing deflector plate 1 forcibly changes the direction of travel of the tape 6, providing the necessary angle for the tearing action. The pressure provided by the spring 4 is transmitted to the rubber pressure roller 2 through the pressure rod 3, enabling it to continuously and adaptively press the tape 6. Finally, the tape guide triangle plate 5 set at a key position maintains the geometric stability of the tape 6 turning angle during dynamic operation, thereby ensuring the constant tension of the system.

[0024] During operation, the tape 6 is pulled out from the bottom of the inclined film-tearing deflector plate 1 and flipped along its surface so that the sticky side faces upward. During this process, the rubber pressure roller 2, under the action of the spring 4, remains pressed against the tape 6. It can be slightly moved up and down by the pressure rod 3 to adapt to the thickness changes of the tape 6 before and after applying the waste film. Subsequently, the tape 6 passes through the downstream tape guide triangle plate 5. The tape guide triangle plate 5 counteracts the change in the path of the tape 6 caused by the increase in the waste film roll diameter, ensuring that the angle between the tape 6 and the inclined film-tearing deflector plate 1 remains consistent.

[0025] The tape guide triangle 5 ensures the geometric stability of the tape 6's travel path, eliminating the need for frequent torque adjustments by the film winding motor to cope with varying tension, thus maintaining a stable output current. This effectively extends the lifespan of the film winding motor and significantly enhances the stability and reliability of the entire film-tearing process.

[0026] The oblique film-tearing device further includes a micro-motion sensor 7. The micro-motion sensor 7 is located near the pressure rod 3. The rubber pressure roller 2 is configured to press against the section of tape 6 that is not adhered to with waste film and is in its pre-use state. When this section of tape 6 undergoes slight changes due to normal factors such as tension and flatness, it will cause the rubber pressure roller 2 to move slightly up and down, and this slight movement will be transmitted to the micro-motion sensor 7 through the pressure rod 3, thereby activating the sensor.

[0027] During equipment operation, the new film roller continuously discharges unused tape 6. The rubber roller 2, under the pressure of the spring 4, always follows this tape 6. If the tape 6 is fed smoothly, the rubber roller 2 will maintain a reference position and float slightly with it. This normal floating will trigger the micro-motion sensor 7, indicating that the system is operating normally. Once the unused tape 6 breaks, loosens, or jams, the rubber roller 2 will lose support and undergo displacement beyond the normal range or stop completely, causing an abnormal signal from the micro-motion sensor 7. The control system can then immediately diagnose the fault.

[0028] The inclined film-tearing deflector plate 1 is provided with an inclined surface 11. The adhesive tape 6 that has been used to adhere waste film is pulled out from the bottom of the inclined film-tearing deflector plate 1 and then flipped over against the inclined surface 11. This flips the adhesive side of the used adhesive tape 6 from the downward position to the upward position, and places it on the upper plane of the inclined film-tearing deflector plate 1, thereby guiding it to the subsequent waste film recycling mechanism.

[0029] Guided by the inclined surface 11, the adhesive tape 6, which has already completed the film-tearing process and has waste film adhering to it with the adhesive side facing down, is flipped 180 degrees, so that the adhesive side, along with the waste film, faces upwards. This changes the ejection angle of the adhesive tape 6, preparing it for subsequent smooth winding onto the waste film recycling wheel.

[0030] The tape guide triangle 5 is a triangular plate structure, fixedly installed on the frame 8 of the film tearing machine. Its installation position is between the inclined film tearing deflector plate 1 and the waste film recycling wheel of the film tearing machine.

[0031] The tape guide triangle 5, with its specific angled edges, provides a constant guiding reference for the tape 6. Regardless of the increase in the diameter of the waste film roll wound on the downstream waste film recycling wheel, this triangle can forcefully guide the tape 6, keeping its path shape stable after leaving the inclined film-tearing deflector 1 and before reaching the waste film recycling wheel, thereby locking the effective working angle between the tape 6 and each component.

[0032] During equipment operation, the used tape 6, after being flipped, is led out from the upper plane of the inclined film-tearing deflector plate 1 and immediately contacts and bypasses a specific edge of the tape guide triangle plate 5. As the waste film recycling wheel continues to rotate, the waste film roll diameter gradually increases, and the position of the winding point changes dynamically accordingly. However, since the tape guide triangle plate 5 is fixed, it acts as a rigid fulcrum, offsetting the impact of the winding point change on the upstream path and ensuring that the tape 6 always contacts the waste film recycling wheel with essentially the same wrap angle and direction.

[0033] Spring 4 is a compression spring that provides downward clamping force, ensuring that the rubber roller 2 remains in contact with the conveyor belt 6. The spring 4 is preferably a compression spring 4, which continuously provides downward clamping force and transmits it to the rubber roller 2 through the pressure rod 3, thereby driving the rubber roller 2 to always maintain close contact with the unused tape 6 passing below.

[0034] During equipment operation, as the conveyor belt 6 is continuously conveyed, its surface may experience slight unevenness or tension fluctuations. At this time, under the constant downward pressure provided by the compression spring 4, the rubber roller 2 will adhere tightly to the surface of the conveyor belt 6 and thus produce slight up-and-down movements. This ensures the continuity and stability of the clamping force, preventing the clamping force from momentarily disappearing or overloading due to the normal vibration of the conveyor belt 6. Simultaneously, this slight movement also provides a detection basis for the nearby micro-motion sensor 7.

[0035] The implementation principle of the inclined film-tearing device for an adhesive film-tearing machine according to an embodiment of this application is as follows: After the adhesive film-tearing machine is started, the unused adhesive tape 6 is continuously released by the new film roller, first passing through the bottom of the inclined film-tearing deflector plate 1. Under the constant downward pressure applied by the compression spring 4 through the pressure rod 3, the rubber pressure roller 2 always tightly presses against this section of adhesive tape 6, and produces up-and-down micro-movements due to slight unevenness or tension fluctuations on the surface of the adhesive tape 6. At the same time, the micro-movement sensor 7 monitors the micro-movement signal transmitted by the pressure rod 3 in real time. Once the adhesive tape 6 breaks, loosens, or gets stuck, causing the displacement of the rubber pressure roller 2 to exceed the normal range or to stop completely, the system immediately determines the fault and stops the machine.

[0036] The tape 6 continues to travel along the inclined surface 11 of the inclined film-tearing deflector plate 1, completing a 180° flip, so that the tape 6, which was originally sticky side down, becomes sticky side up and carries the waste film. Then it immediately bypasses the specific edge of the tape guide triangle plate 5 fixedly installed on the frame 8. The triangle plate acts as a rigid fulcrum to counteract the change in the winding point position caused by the increase in the diameter of the downstream waste film recycling wheel. This ensures that the path shape, wrap angle, and direction of the tape 6 remain constant from leaving the inclined film-tearing deflector plate 1 to the waste film recycling wheel, thereby maintaining stable system tension. This allows the output current of the film winding motor to be stable without frequent torque adjustments. Finally, the waste film is smoothly wound onto the waste film recycling wheel. The entire film-tearing process is completed continuously and reliably under the conditions of constant angle, constant tension, adaptive pressure, and real-time fault detection.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A slanted film-tearing device for an adhesive film-tearing machine, characterized in that: Includes an inclined film-tearing guide plate, rubber pressure roller, pressure bar, spring, and belt guide triangle, wherein: The inclined film-tearing deflector plate is installed in the film-tearing channel of the film-tearing machine to change the direction of travel of the tape. The rubber pressure roller is positioned near the inclined film-tearing deflector plate and is used to press the tape tightly. The pressure rod is connected to the rubber pressure roller, and the spring is connected to the pressure rod or the rubber pressure roller, so that the rubber pressure roller can move up and down slightly; The tape guide triangle is located downstream of the inclined film-tearing deflector plate to guide the tape and keep the angle between the tape and the inclined film-tearing deflector plate stable.

2. The oblique film-tearing device for an adhesive film-tearing machine according to claim 1, characterized in that: It also includes a micro-motion sensor, which is located near the pressure bar. When the pressure bar moves due to the micro-motion of the rubber pressure roller, the micro-motion sensor is activated.

3. The oblique film-tearing device for an adhesive film-tearing machine according to claim 1, characterized in that: The inclined tear-off plate has an inclined surface. The tape is pulled out from the bottom of the inclined tear-off plate and flipped along the inclined surface, so that the sticky side of the tape flips to the upper surface of the inclined tear-off plate.

4. The oblique film-tearing device for an adhesive film-tearing machine according to claim 1, characterized in that: The tape guide triangular plate is a triangular plate structure, which is fixedly installed on the film tearing machine frame and located between the inclined film tearing deflector plate and the waste film recycling wheel of the film tearing machine.

5. The oblique film-tearing device for an adhesive film-tearing machine according to claim 1, characterized in that: The spring is a compression spring, which provides a downward clamping force to keep the rubber roller in contact with the conveyor belt.

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