PIN membrane jacking device and membrane jacking method

Abstract

The invention discloses a PIN film jacking device and a PIN film jacking method. The PIN film jacking device comprises a mounting base, a PIN lifting guide rail assembly arranged on the mounting base in the Z-axis direction, a lifting plate arranged on the PIN lifting guide rail assembly in a sliding mode, a first driving assembly arranged on the mounting base and used for driving the lifting plate to ascend and descend, and a PIN transverse moving guide rail assembly arranged on the lower end face of the lifting plate in the Y-axis direction. The top film assembly is arranged on the PIN transverse moving guide rail assembly in a sliding manner; and the second driving assembly is arranged on the mounting seat and is used for driving the top film assembly to slide along the PIN transverse moving guide rail assembly. The automatic film jacking device has the advantages that by arranging the first driving assembly and the second driving assembly, automatic movement of the film jacking assembly can be achieved, and therefore automatic film jacking is achieved. The first driving assembly drives a lifting plate through cooperation of a lead screw and a motor, the stability and high precision of lifting of the lifting plate can be guaranteed, accordingly, the high precision and stability of lifting of the film jacking assembly are guaranteed, and the film jacking precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of film tearing equipment, in particular to a PIN needle film pushing device and a film pushing method. Background Art

[0002] During the PCB manufacturing process, the release film on the inner or outer layers of the PCB must be exposed before etching. Existing film removal equipment cannot automatically separate the substrate from the film, resulting in low film removal efficiency and precision.

[0003] In view of this, it is necessary to provide a PIN pin top film device and a top film method. Summary of the Invention

[0004] The present invention provides a PIN needle film pushing device and film pushing method, which effectively solves the problems of low film tearing efficiency and low film tearing precision in the prior art.

[0005] The technical solution adopted in the present invention is:

[0006] The PIN needle film pushing device includes a mounting seat, a PIN needle lifting guide rail assembly arranged on the mounting seat along the Z-axis direction, a lifting plate slidably arranged on the PIN needle lifting guide rail assembly, a No. 1 driving assembly arranged on the mounting seat to drive the lifting plate to lift and lower, a PIN needle transverse guide rail assembly arranged along the Y direction on the lower end surface of the lifting plate, a film pushing assembly slidably arranged on the PIN needle transverse guide rail assembly, and a No. 2 driving assembly arranged on the mounting seat for driving the film pushing assembly to slide along the PIN needle transverse guide rail assembly.

[0007] Furthermore, the first drive assembly includes a motor fixedly mounted on a mounting base, a screw mounted on an output shaft of the motor, and a nut mounted on the screw, wherein the nut is fixedly connected to the lifting plate. The motor is used to drive the screw to rotate, and when the screw rotates, the nut moves along the axial direction of the screw.

[0008] Furthermore, a tension spring is provided between the lifting plate and the mounting seat, and the tension spring is arranged vertically.

[0009] Furthermore, the second drive assembly includes a first cylinder mounted on a mounting base, a first plate mounted at the output end of the first cylinder, a vertical plate mounted on the first plate, and a pin connecting the vertical plate and the top membrane assembly. The vertical plate is provided with an inclined slot, and the top membrane assembly is provided with a groove for sliding and lifting connection with the vertical plate. The groove is provided with shaft holes on both sides, and the two ends of the pin pass through the inclined slots and connect to the shaft holes. The first cylinder is used to drive the first plate to rise and fall.

[0010] Furthermore, the top membrane assembly includes a connecting seat slidably connected to the PIN needle transverse guide rail assembly, and a plurality of PIN needle assemblies arranged along the X-axis direction at the lower end of the connecting seat. The PIN needle assembly includes a mounting tube, a PIN needle obliquely arranged at the lower end of the mounting tube, and a No. 1 seat driven by a No. 2 drive assembly. The upper end of the mounting tube is fixedly connected to the connecting seat, and the lower end of the mounting tube is fixedly connected to the No. 1 seat. The axial hole is arranged on the No. 1 seat.

[0011] Furthermore, the front side of the No. 1 seat is provided with an oblique chamfer.

[0012] Furthermore, the mounting seat includes an upper seat and a lower seat, the PIN needle lifting guide rail assembly, the No. 1 drive assembly and the No. 2 drive assembly are arranged on the upper seat, and the top membrane assembly is horizontally slidably arranged on the lower seat.

[0013] Furthermore, there are two PIN needle lifting guide rail assemblies, and two PIN needle transverse guide rail assemblies. The two PIN needle lifting guide rail assemblies are symmetrical about the first drive assembly, and the two PIN needle transverse guide rail assemblies are symmetrical about the first drive assembly.

[0014] Furthermore, a photoelectric switch is provided on the mounting base, and a sensor sheet that senses the photoelectric switch is provided on the lifting plate. A photoelectric switch is provided on the mounting base, and a sensor sheet that senses the photoelectric switch is provided on the lifting plate.

[0015] The film pushing method adopts the PIN needle film pushing device. When the plate to be torn off moves to the bottom of this device, the lifting plate is driven by the No. 1 driving component to move downward along the PIN needle lifting guide assembly, so that the lifting plate drives the film pushing assembly to move downward synchronously. At this time, the film pushing assembly moves to one side of the plate, and then the No. 2 driving component drives the film pushing assembly to move to one side of the plate, so that the film pushing assembly extends between the plate and the film on the surface of the plate to lift the film.

[0016] Beneficial effects of the invention:

[0017] 1. By setting the No. 1 drive component and the No. 2 drive component, the top film component can be automatically moved, thereby realizing automatic top film.

[0018] 2. The No. 1 drive assembly uses a screw rod and a motor to drive the lifting plate, which can ensure the stability and high precision of the lifting plate, thereby ensuring the high precision and stability of the lifting of the top membrane assembly and improving the accuracy of the top membrane.

[0019] 3. By setting a tension spring, when the lifting plate drives the top membrane assembly to move downward, the elastic force generated by the pulling deformation of the tension spring is used to eliminate the assembly gap between the nut and the screw rod, thereby ensuring the lifting accuracy of the lifting plate and the top membrane assembly and improving the accuracy of the top membrane.

[0020] 4. The movement coordination between the No. 2 drive assembly and the top membrane assembly adopts the method of inclined slide groove and pin sliding to realize the horizontal drive of the top membrane assembly, which realizes the stability of the horizontal movement of the entire top membrane assembly and reduces the assembly volume of the entire No. 2 drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic overall diagram from one perspective of the PIN pin top film device provided in an embodiment of the present application.

[0022] Figure 2 A schematic diagram of a PIN pin-top film device from another perspective provided in an embodiment of the present application.

[0023] Figure 3 This is a schematic diagram of a PIN pin top film device provided in an embodiment of the present application from one perspective with the lower seat removed.

[0024] Figure 4 This is a schematic diagram of the PIN pin top membrane device provided in an embodiment of the present application from another perspective with the lower seat removed.

[0025] Figure 5 This is an exploded view of the second drive component and the top membrane component of the PIN needle top membrane device provided in an embodiment of the present application.

[0026] Figure 6 This is an exploded view of the top membrane assembly of the PIN needle top membrane device provided in an embodiment of the present application.

[0027] The markings in the figure are: 1. Mounting seat; 2. PIN needle lifting guide rail assembly; 3. Lifting plate; 4. No. 1 drive assembly; 7. PIN needle transverse guide rail assembly; 6. Top membrane assembly; 5. No. 2 drive assembly; 8. Tension spring; 51. No. 1 cylinder; 52. No. 1 plate; 53. Vertical plate; 54. Pin shaft; 501. Inclined slide groove; 61. Connecting seat; 62. PIN needle assembly; 621. Mounting cylinder; 622. PIN needle; 623. No. 1 seat; 602. Groove; 9. Photoelectric switch; 10. Sensor plate; 11. Upper seat; 12. Lower seat. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2As shown, the first embodiment provided by the present application is a PIN needle top film device, including a mounting seat 1, a PIN needle lifting guide rail assembly 2 arranged on the mounting seat 1 along the Z-axis direction, a lifting plate 3 slidably arranged on the PIN needle lifting guide rail assembly 2, a No. 1 driving assembly 4 arranged on the mounting seat 1 for driving the lifting plate 3 to lift and lower, a PIN needle transverse guide rail assembly 7 arranged on the lower end surface of the lifting plate 3 along the Y direction, a top film assembly 6 slidably arranged on the PIN needle transverse guide rail assembly 7, and a No. 2 driving assembly 5 arranged on the mounting seat 1 for driving the top film assembly 6 to slide along the PIN needle transverse guide rail assembly 7.

[0030] During actual use, when the plate to be torn off moves to the bottom of this device, the No. 1 driving component 4 drives the lifting plate 3 to move downward along the PIN needle lifting guide rail component 2, so that the lifting plate 3 drives the top film component 6 to move downward synchronously. At this time, the top film component 6 moves to one side of the plate, and then the No. 2 driving component 5 drives the top film component 6 to move to one side of the plate, so that the top film component 6 extends between the plate and the film on the surface of the plate to lift the film.

[0031] In the above design, the film on the plate can be automatically lifted up, thereby improving the efficiency and accuracy of the film lifting.

[0032] Specifically: Figure 1 As shown, the first drive assembly 4 includes a motor fixedly mounted on the mounting base 1, a screw disposed on the motor output shaft, and a nut disposed on the screw, wherein the nut is fixedly connected to the lifting plate 3. The motor is used to drive the screw to rotate, and when the screw rotates, the nut moves along the axial direction of the screw.

[0033] During actual use, the motor drives the screw rod to rotate, so that the nut is lifted and lowered along the axial direction on the screw rod, thereby realizing that the nut drives the lifting plate 3 to lift and lower.

[0034] In the above design, the structural design and specific implementation of the No. 1 drive assembly 4 can effectively achieve precise adjustment of the lifting plate 3.

[0035] Specifically: Figure 1 and Figure 3 As shown, a tension spring 8 is provided between the lifting plate 3 and the mounting seat 1 , and the tension spring 8 is arranged vertically.

[0036] In actual use, when the lifting plate 3 moves downward, the tension spring 8 generates a tensile deformation, and the assembly gap between the screw rod and the nut is overcome by the tension of the tension spring 8.

[0037] In the above design, the structural design and specific implementation method of the tension spring 8 can effectively apply an upward pulling force to the lifting plate 3, thereby eliminating the assembly gap between the screw rod and the nut, improving the movement accuracy of the lifting plate 3, further ensuring the accuracy of the descending distance of the top film assembly 6, and improving the accuracy of the film tearing of the top film assembly 6.

[0038] Specifically: Figure 4 and Figure 5 As shown, the second drive assembly 5 includes a first cylinder 51 provided on the mounting base 1, a first plate 52 provided at the output end of the first cylinder 51, a vertical plate 53 provided on the first plate 52, and a pin 54 connecting the vertical plate 53 and the top membrane assembly 6. The vertical plate 53 is provided with an inclined slot 501, and the top membrane assembly 6 is provided with a groove 602 connected to the vertical plate 53 for sliding and lifting. The groove 602 is provided with shaft holes on both sides, and the two ends of the pin 54 pass through the inclined slot 501 and are connected to the shaft holes. The first cylinder 51 is used to drive the first plate 52 to rise and fall.

[0039] In actual use, when the top membrane assembly 6 needs to move horizontally to realize the top membrane, the No. 1 plate 52 is driven by the No. 1 cylinder 51 to drive the vertical plate 53 to rise, so that the pin shaft 54 rolls along the inclined slide groove 501, realizing the horizontal forward movement of the pin shaft 54, and the top membrane assembly 6 is driven by the pin shaft 54 to move horizontally forward, so that the top membrane assembly 6 moves to the predetermined position.

[0040] In the above design, the structural design and specific implementation method of the No. 2 driving component 5 can effectively realize the horizontal automatic driving of the top membrane component 6.

[0041] Specifically: Figure 5 and Figure 6 As shown, the top membrane assembly 6 includes a connecting seat 61 that is slidingly connected to the PIN needle transverse guide rail assembly 7, and a plurality of PIN needle assemblies 62 arranged along the X-axis direction at the lower end of the connecting seat 61. The PIN needle assembly 62 includes a mounting cylinder 621, a PIN needle 622 obliquely arranged at the lower end of the mounting cylinder 621, and a No. 1 seat 623 driven by the No. 2 drive assembly 5. The upper end of the mounting cylinder 621 is fixedly connected to the connecting seat 61, and the lower end of the mounting cylinder 621 is fixedly connected to the No. 1 seat 623. The axial hole is arranged on the No. 1 seat 623.

[0042] In actual use, the No. 1 seat 623 is driven by the No. 2 driving assembly 5 to move horizontally, driving the connecting seat 61 to move horizontally along the PIN needle transverse guide rail assembly 7 to a predetermined position, so that the PIN needle 622 opens a slit in the film on the plate to realize the top film.

[0043] In the above design, the structural design and specific implementation method of the top membrane component 6 can effectively achieve coordination with the second drive component 5 and realize the top membrane action.

[0044] Specifically, the front side of the No. 1 seat 623 is provided with an oblique chamfer.

[0045] In the above design, the design of the oblique chamfer 660 can effectively guide the top membrane assembly 6 during the movement of the plate toward the front.

[0046] Specifically: Figure 1 and Figure 2 As shown, the mounting seat 1 includes an upper seat 11 and a lower seat 12 , the PIN needle lifting guide rail assembly 2 , the No. 1 drive assembly 4 and the No. 2 drive assembly 5 are arranged on the upper seat 11 , and the top membrane assembly 6 is horizontally slidably arranged on the lower seat 12 .

[0047] In the above design, configuring the mounting base 1 as an upper base 11 and a lower base 12 can facilitate the assembly of the mounting base 1 and various components.

[0048] Specifically: Figure 3 As shown, the number of the PIN needle lifting guide rail assemblies 2 is two, the number of the PIN needle transverse guide rail assemblies 7 is two, the two PIN needle lifting guide rail assemblies 2 are symmetrical about the No. 1 drive assembly 4, and the two PIN needle transverse guide rail assemblies 7 are symmetrical about the No. 1 drive assembly 4.

[0049] In the above design, by setting two PIN needle lifting guide rail assemblies 2 and PIN needle transverse guide rail assemblies 7, and symmetrically arranging the PIN needle lifting guide rail assemblies 2 and PIN needle transverse guide rail assemblies 7, the lifting and lowering process of the lifting plate 3 and the stability of the top film assembly 6 during the horizontal movement process of the No. 2 drive assembly 5 can be ensured, thereby improving the accuracy of the top film.

[0050] Specifically: Figure 3 As shown, the mounting base 1 is further provided with a photoelectric switch 9, and the lifting plate 3 is provided with a sensor sheet 10 that senses the photoelectric switch 9. The mounting base 1 is further provided with a photoelectric switch 9, and the lifting plate 3 is provided with a sensor sheet 10 that senses the photoelectric switch 9. The mounting base 1 includes an upper base 11 and a lower base 12. The PIN needle lifting guide rail assembly 2, the No. 1 drive assembly 4, and the No. 2 drive assembly 5 are provided on the upper base 11, and the top membrane assembly 6 is horizontally slidably provided on the lower base 12.

[0051] In actual use, the induction plate rises and falls synchronously with the lifting plate 3. When the photoelectric switch 9 senses the induction plate 10, the motor is controlled to stop rotating through the PLC system.

[0052] In the above design, the structural design and specific implementation of the photoelectric switch 9 and the sensor sheet 10 can effectively realize the precise control of the lifting distance of the lifting plate 3, thereby realizing the precise control of the lifting distance of the top membrane assembly 6.

[0053] The second embodiment provided by the present application is a film-topping method, which adopts the PIN needle film-topping device. When the plate to be torn off moves to the bottom of the device, the lifting plate 3 is driven by the No. 1 driving component 4 to move downward along the PIN needle lifting guide rail component 2, so that the lifting plate 3 drives the top film component 6 to move downward synchronously. At this time, the top film component 6 moves to one side of the plate, and then the No. 2 driving component 5 drives the top film component 6 to move to one side of the plate, so that the top film component 6 extends between the plate and the film on the surface of the plate to lift the film.

[0054] In the above design, the film on the plate can be automatically pushed open and torn off quickly and accurately, thereby improving the efficiency and accuracy of tearing the film on the plate.

[0055] The third embodiment provided in this application is a PIN pin film-lifting device, comprising a mounting base 1, a PIN pin lifting guide rail assembly 2 arranged on the mounting base 1 along the Z-axis direction, a lifting plate 3 slidably arranged on the PIN pin lifting guide rail assembly 2, a No. 1 driving assembly 4 arranged on the mounting base 1 to drive the lifting plate 3 to rise and fall, a PIN pin transverse guide rail assembly 7 arranged on the lower end surface of the lifting plate 3 along the Y-direction, a film-lifting assembly 6 slidably arranged on the PIN pin transverse guide rail assembly 7, and a No. 2 driving assembly 5 arranged on the mounting base 1 for driving the film-lifting assembly 6 to slide along the PIN pin transverse guide rail assembly 7. The No. 1 driving assembly 4 includes a motor fixedly arranged on the mounting base 1, a screw arranged on the motor output shaft, and a nut arranged on the screw rod, wherein the nut is fixedly connected to the lifting plate 3. A tension spring 8 is arranged between the lifting plate 3 and the mounting base 1, and the tension spring 8 is arranged vertically. The No. 2 driving assembly 5 includes a No. 1 cylinder 51 arranged on the mounting seat 1, a No. 1 plate 52 arranged at the output end of the No. 1 cylinder 51, a vertical plate 53 arranged on the No. 1 plate 52, and a pin shaft 54 connecting the vertical plate 53 and the top membrane assembly 6. The vertical plate 53 is provided with an inclined slide groove 501, and the top membrane assembly 6 is provided with a groove 602 connected to the vertical plate 53 for sliding and lifting. Axial holes are provided on both sides of the groove 602, and both ends of the pin shaft 54 pass through the inclined slide groove 501 and are connected to the axis holes. The top membrane assembly 6 includes a connecting seat 61 that is slidably connected to the PIN needle transverse guide rail assembly 7, a plurality of PIN needle assemblies 62 arranged along the X-axis direction at the lower end of the connecting seat 61, and a fixed plate connecting the lower ends of the plurality of PIN needle assemblies 62. The PIN needle assembly 62 includes a mounting cylinder 621, a PIN needle 622 obliquely arranged at the lower end of the mounting cylinder 621, and a No. 1 seat 623 fixedly arranged on the fixed plate. The upper end of the mounting cylinder 621 is fixedly connected to the connecting seat 61, and the lower end of the mounting cylinder 621 is fixedly connected to the No. 1 seat 623. The shaft hole is provided on the No. 1 seat 623. The front side of the No. 1 seat 623 is provided with an oblique chamfer 660. The mounting seat 1 includes an upper seat 11 and a lower seat 12. The PIN needle lifting guide rail assembly 2, the No. 1 drive assembly 4, and the No. 2 drive assembly 5 are provided on the upper seat 11. The top membrane assembly 6 is horizontally slidably provided on the lower seat 12. There are two PIN needle lifting guide rail assemblies 2 and two PIN needle lateral guide rail assemblies 7. The two PIN needle lifting guide rail assemblies 2 are symmetrical about the first drive assembly 4, and the two PIN needle lateral guide rail assemblies 7 are symmetrical about the first drive assembly 4. A photoelectric switch 9 is also provided on the mounting base 1, and a sensor sheet 10 that senses the photoelectric switch 9 is provided on the lifting plate 3.

[0056] During actual use, the motor drives the lifting plate 3 to descend, causing the nut to descend along the axial direction of the screw rod, driving the lifting plate 3 to synchronously move down along the PIN needle lifting guide assembly 2 to a predetermined height. During this process, the tension spring 8 is stretched and deformed, and the motor stops moving when the photoelectric switch 9 senses the sensor sheet 10. Subsequently, the No. 1 cylinder 51 drives the No. 1 plate 52 to drive the vertical plate 53 to rise, causing the pin shaft 54 to roll along the inclined slide 501, realizing the horizontal forward movement of the pin shaft 54, and driving the top film assembly 6 to move horizontally forward through the pin shaft 54, so that the No. 1 seat 623 is driven horizontally by the No. 2 driving assembly 5, driving the connecting seat 61 to move horizontally along the PIN needle transverse guide assembly 7 to a predetermined position, so that the PIN needle 622 slits the film on the plate to realize the top film.

[0057] In the above design, automatic film tearing can be effectively achieved, and the assembly gap between the screw rod and the nut can be effectively eliminated through the tension spring 8, further improving the movement accuracy of the top film assembly 6, thereby improving the accuracy of the top film.

[0058] To explain in further detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. PIN pin top film device, characterized by: The invention comprises a mounting seat (1), a PIN needle lifting guide rail assembly (2) arranged on the mounting seat (1) along the Z-axis direction, a lifting plate (3) slidably arranged on the PIN needle lifting guide rail assembly (2), a first driving assembly (4) arranged on the mounting seat (1) for driving the lifting plate (3) to lift and lower, a PIN needle transverse guide rail assembly (7) arranged on the lower end surface of the lifting plate (3) along the Y-axis direction, a top film assembly (6) slidably arranged on the PIN needle transverse guide rail assembly (7), and a second driving assembly (5) arranged on the mounting seat (1) for driving the top film assembly (6) to slide along the PIN needle transverse guide rail assembly (7).

2. The PIN pin-top film device according to claim 1, characterized in that: The first drive assembly (4) comprises a motor fixedly mounted on a mounting seat (1), a screw rod mounted on an output shaft of the motor, and a nut mounted on the screw rod, wherein the nut is fixedly connected to the lifting plate (3), and the motor is used to drive the screw rod to rotate, and when the screw rod rotates, the nut moves along the axial direction of the screw rod.

3. The PIN pin-top film device according to claim 1, characterized in that: A tension spring (8) is provided between the lifting plate (3) and the mounting seat (1), and the tension spring (8) is arranged vertically.

4. The PIN pin-top film device according to claim 1, characterized in that: The second driving assembly (5) includes a No. 1 cylinder (51) arranged on the mounting seat (1), a No. 1 plate (52) arranged at the output end of the No. 1 cylinder (51), a vertical plate (53) arranged on the No. 1 plate (52), and a pin shaft (54) connecting the vertical plate (53) and the top membrane assembly (6), wherein the vertical plate (53) is provided with an inclined slide groove (501), and the top membrane assembly (6) is provided with a groove (602) connected to the vertical plate (53) for sliding and lifting, and shaft holes are provided on both sides of the groove (602). Both ends of the pin shaft (54) pass through the inclined slide groove (501) and are connected to the shaft holes, and the No. 1 cylinder (51) is used to drive the No. 1 plate (52) to rise and fall.

5. The PIN pin-top film device according to claim 1, characterized in that: The top membrane assembly (6) includes a connecting seat (61) slidably connected to the PIN needle transverse guide rail assembly (7), a plurality of PIN needle assemblies (62) arranged along the X-axis direction at the lower end of the connecting seat (61), the PIN needle assembly (62) including a mounting cylinder (621), a PIN needle (622) obliquely arranged at the lower end of the mounting cylinder (621), and a No. 1 seat (623) driven by a No. 2 driving assembly (5), the upper end of the mounting cylinder (621) is fixedly connected to the connecting seat (61), the lower end of the mounting cylinder (621) is fixedly connected to the No. 1 seat (623), and the shaft hole is arranged on the No. 1 seat (623).

6. The PIN pin-to-film device according to claim 1, characterized in that: The front side of the No. 1 seat (623) is provided with an oblique chamfer.

7. The PIN pin-top film device according to claim 1, characterized in that: The mounting seat (1) comprises an upper seat (11) and a lower seat (12); the PIN needle lifting guide rail assembly (2), the first drive assembly (4) and the second drive assembly (5) are arranged on the upper seat (11); and the top membrane assembly (6) is horizontally slidably arranged on the lower seat (12).

8. The PIN pin-to-film device according to claim 1, characterized in that: The number of the PIN needle lifting guide rail assemblies (2) is two, the number of the PIN needle transverse guide rail assemblies (7) is two, the two PIN needle lifting guide rail assemblies (2) are symmetrical about the first drive assembly (4), and the two PIN needle transverse guide rail assemblies (7) are symmetrical about the first drive assembly (4).

9. The PIN pin-top film device according to claim 1, characterized in that: A photoelectric switch (9) is also provided on the mounting seat (1), and a sensing sheet (10) that senses the photoelectric switch (9) is provided on the lifting plate (3).

10. A film-topping method, using the PIN pin film-topping device according to any one of claims 1 to 9, characterized in that: When the plate to be torn off moves to the bottom of the device, the first drive component (4) drives the lifting plate (3) to move downward along the PIN needle lifting guide rail component (2), so that the lifting plate (3) drives the top film component (6) to move downward synchronously. At this time, the top film component (6) moves to one side of the plate, and then the second drive component (5) drives the top film component (6) to move to one side of the plate, so that the top film component (6) extends between the plate and the film on the surface of the plate, and lifts up the film.

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