Film tearing device

Abstract

The present invention provides a film tearing device, which comprises: a base body; a supporting part, which is arranged on the base body and has a first supporting surface and a second supporting surface, and there is an included angle between the first supporting surface and the second supporting surface; a carrying part, which is movably arranged on the base body; a tape; a conveying assembly, which is used for conveying the tape and has an unwinding part, a turning part and a winding part arranged in sequence along the conveying direction of the tape, the unwinding part and the winding part are respectively arranged on the first supporting surface and the second supporting surface, the turning part is arranged between the first supporting surface and the second supporting surface, the unwinding part and the turning part form a first conveying section, and the turning part and the winding part form a second conveying section; the carrying part corresponds to the first conveying section and the moving direction is the same as the conveying direction of the first conveying section; the turning part has a commutation side surface, and the commutation side surface is used for turning and commuting the tape, so that the tape at the end of the first conveying section adheres to the workpiece to be processed and then passes through the commutation side surface for turning and commuting; a compaction part, which is used for pressing the tape onto the workpiece to be processed.

Description

Technical Field

[0001] The present invention relates to the technical field of film tearing, and in particular, to a film tearing device. Background Art

[0002] Laboratory reagents are usually placed in microplates. During the circulation process, in order to protect the products and facilitate storage, the microplates are mostly packaged with plastic sealing films, and the plastic sealing films need to be manually torn off when the microplates are to be used. When using the manual film tearing method, impurities are likely to fall into the microplate, affecting the purity of the experimental reagents. Summary of the Invention

[0003] The present invention provides a film tearing device to solve the problem that impurities fall into the microplate and contaminate the test reagents due to manual film tearing in the prior art.

[0004] The present invention provides a film tearing device, which includes: a base body; a supporting part arranged on the base body, the supporting part has a first supporting surface and a second supporting surface, and there is an included angle between the first supporting surface and the second supporting surface; a carrying part movably arranged on the base body, the carrying part is used for carrying a workpiece to be processed; a tape having a first side edge and a second side edge arranged oppositely in the width direction, the tape has an adhesive surface and a smooth surface arranged oppositely; a conveying component for conveying the tape, the conveying component has a unwinding part, a turning part and a winding part arranged in sequence along the conveying direction of the tape, the unwinding part and the winding part are respectively arranged on the first supporting surface and the second supporting surface, the turning part is arranged between the first supporting surface and the second supporting surface, the unwinding part and the turning part form a first conveying section, and the turning part and the winding part form a second conveying section; the carrying part is arranged corresponding to the first conveying section, and the moving direction of the carrying part is the same as the conveying direction of the first conveying section; the first side edge of the tape in the first conveying section is arranged close to the first supporting surface and the adhesive surface faces the carrying part, and the second side edge of the tape in the second conveying section is arranged close to the second supporting surface and the adhesive surface faces away from the carrying part; the turning part has a commutation side surface for turning and commuting the tape, so that the tape at the end of the first conveying section adheres to the workpiece to be processed and then turns and commutes through the commutation side surface; a compaction part arranged on the base body and the height of the compaction part relative to the carrying part is adjustable, the compaction part is located upstream of the turning part and on the side of the tape away from the carrying part, and the compaction part is used for pressing the tape onto the workpiece to be processed.

[0005] Further, the extending direction of the first supporting surface is the same as the extending direction of the first conveying section, the turning part is arranged on the first supporting surface, the commutation side surface is located on the side of the turning part away from the first supporting surface, and the distance between the commutation side surface and the first supporting surface gradually decreases along the conveying direction of the first conveying section.

[0006] Further, the included angle between the extending direction of the commutation side surface and the extending direction of the first conveying section is set between 35° and 55°.

[0007] Further, the flipping part has a top surface and a bottom surface arranged opposite to the bearing part. The bottom surface of the flipping part faces the bearing part, and the direction from the bottom surface to the top surface of the reversing side surface is an arc transition surface.

[0008] Further, the compaction part is a compaction roller, and the axial direction of the compaction roller is perpendicular to the extending direction of the first conveying section.

[0009] Further, the supporting part includes a first supporting plate and a second supporting plate. Both the first supporting plate and the second supporting plate are vertically arranged, the included angle between the first supporting plate and the second supporting plate is set between 80° and 100°, the outer surface of the first supporting plate forms a first supporting surface, and the outer surface of the second supporting plate forms a second supporting surface.

[0010] Further, the position of the supporting part relative to the seat body is adjustable, and the compaction part is fixed on the supporting part to adjust the height of the compaction part relative to the bearing part through the supporting part.

[0011] Further, the supporting part has an accommodating space. The film tearing device further includes a first driving part. The first driving part is arranged on the seat body and is located in the accommodating space. The first driving part is drivingly connected to the supporting part to adjust the height of the supporting part relative to the seat body.

[0012] Further, the film tearing device further includes: a first detector arranged at one end of the flipping part far away from the unwinding part, the first detector is used to detect whether there is a sealing film on the workpiece to be processed; a second detector, the second detector is used to detect whether there is a tape on the first conveying section; an alarm, electrically connected to the first detector and the second detector respectively.

[0013] Further, the winding part is a driving wheel, the driving wheel is rotatably arranged on the second supporting surface, and the axial direction of the driving wheel is perpendicular to the second supporting surface; the unwinding part is a driven wheel, the driven wheel is rotatably arranged on the first supporting surface, and the axial direction of the driven wheel is perpendicular to the first supporting surface.

[0014] Applying the technical solution of the present invention can perform film tearing treatment on the workpiece to be processed, avoiding the situation of contaminating the workpiece to be processed caused by manual film tearing by workers. Specifically, when performing film tearing treatment on the workpiece to be processed, the workpiece to be processed is placed on the bearing part, and the length direction of the workpiece to be processed is the same as the moving direction of the bearing part. The bearing part drives the workpiece to be processed to move from the unwinding part to the flipping part. When the front end of the workpiece to be processed moves below the compaction part, the compaction part moves downward to first press the tape onto the front end of the workpiece to be processed. The bearing part continues to move forward, and the compaction part continuously applies pressure to the workpiece to be processed so that the tape adheres to the sealing film of the workpiece to be processed. At the same time, the conveying assembly performs a winding operation on the tape, and the flipping part performs a flipping operation on the tape, so that one of the corners of the workpiece to be processed first turns with the tape, completing an action similar to manually uncovering, flipping, and tearing the film at the corner of the workpiece to be processed. Compared with the traditional technical solution, the technical solution of the present application can perform film tearing on the workpiece to be processed, and the film tearing process simulates the manual film tearing process, that is, first uncovering the sealing film at the corner of the workpiece to be processed, and then flipping and tearing the sealing film, avoiding the situation of contaminating the workpiece to be processed caused by manual film tearing. At the same time, the device of the present application first uncovers the corner of the sealing film instead of one side of the sealing film. In this way, the success rate of film tearing can be improved, and the situation of tearing the film during the film tearing process can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0016] Figure 1 shows a schematic structural view of the front part of the film tearing device provided by the present invention;

[0017] Figure 2 shows a top view of the film tearing device provided by the present invention;

[0018] Figure 3 shows a schematic structural view of the rear part of the film tearing device provided by the present invention;

[0019] Figure 4 shows a side view of the film tearing device provided by the present invention;

[0020] Figure 5 shows a front view of the film tearing device provided by the present invention.

[0021] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0022] 10, seat body;

[0023] 20. Support part; 201. First support surface; 202. Second support surface;

[0024] 21. First support plate; 22. Second support plate;

[0025] 30. Carrying part;

[0026] 40. Tape; 401. First side; 402. Second side;

[0027] 51. Unwinding part; 52. Flipping part; 53. Rewinding part; 54. Driving motor;

[0028] 60. Compacting part;

[0029] 70. First driving part;

[0030] 80. First detector;

[0031] 90. Electric guide rail. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] As Figures 1 to 5As shown in the figure, an embodiment of the present invention provides a film tearing device, which includes a base body 10, a support portion 20, a carrying portion 30, a tape 40, a conveying assembly, and a compaction portion 60. Among them, the support portion 20 is arranged on the base body 10. The support portion 20 has a first support surface 201 and a second support surface 202, and there is an included angle between the first support surface 201 and the second support surface 202. The carrying portion 30 is movably arranged on the base body 10, and the carrying portion 30 is used to carry the workpiece to be processed. The tape 40 has a first side edge 401 and a second side edge 402 arranged opposite to each other in the width direction. The tape 40 has an adhesive surface and a smooth surface arranged opposite to each other. The conveying assembly is used to convey the tape 40. The conveying assembly has a pay-off portion 51, a turning portion 52, and a winding portion 53 arranged in sequence along the conveying direction of the tape 40. The pay-off portion 51 and the winding portion 53 are respectively arranged on the first support surface 201 and the second support surface 202, and the turning portion 52 is arranged between the first support surface 201 and the second support surface 202. The pay-off portion 51 and the turning portion 52 form a first conveying section, and the turning portion 52 and the winding portion 53 form a second conveying section; the carrying portion 30 is arranged corresponding to the first conveying section, and the moving direction of the carrying portion 30 is the same as the conveying direction of the first conveying section; the first side edge 401 of the tape 40 in the first conveying section is arranged close to the first support surface 201 and the adhesive surface faces the carrying portion 30, and the second side edge 402 of the tape 40 in the second conveying section is arranged close to the second support surface 202 and the adhesive surface faces away from the carrying portion 30; the turning portion 52 has a commutation side surface, and the commutation side surface is used to turn and commutate the tape 40, so that the tape 40 at the end of the first conveying section adheres to the workpiece to be processed and then passes through the commutation side surface for turning and commutation. The compaction portion 60 is arranged on the base body 10 and the height of the compaction portion 60 relative to the carrying portion 30 is adjustable. The compaction portion 60 is located upstream of the turning portion 52 and on the side of the tape 40 away from the carrying portion 30, and the compaction portion 60 is used to press the tape 40 onto the workpiece to be processed.

[0034] Applying the technical solution of the present invention can perform film tearing treatment on the workpiece to be processed, avoiding the situation of contaminating the workpiece to be processed caused by manual film tearing by workers. Specifically, when performing film tearing treatment on the workpiece to be processed, the workpiece to be processed is placed on the carrying part 30, and the length direction of the workpiece to be processed is the same as the moving direction of the carrying part 30. The carrying part 30 drives the workpiece to be processed to move from the unwinding part 51 to the turning part 52. When the front end of the workpiece to be processed moves below the compaction part 60, the compaction part 60 moves downward to first press the tape 40 against the front end of the workpiece to be processed. The carrying part 30 continues to move forward, and the compaction part 60 continuously applies pressure to the workpiece to be processed so that the tape 40 adheres to the sealing film of the workpiece to be processed. At the same time, the conveying assembly performs a winding operation on the tape 40, and the turning part 52 performs a turning operation on the tape 40, so that one of the corners of the workpiece to be processed first turns and changes direction along with the tape 40, completing an action similar to manually uncovering, turning, and tearing the film at the corner of the workpiece to be processed. Compared with the traditional technical solution, the technical solution of the present application can perform film tearing on the workpiece to be processed, and the film tearing process simulates the manual film tearing process, that is, first uncover the sealing film at the corner of the workpiece to be processed, and then turn and tear the sealing film, avoiding the situation of contaminating the workpiece to be processed caused by manual film tearing. At the same time, the device of the present application first uncovers the corner of the sealing film instead of one side of the sealing film, and such a setting can improve the success rate of film tearing and reduce the situation of tearing the film during the film tearing process.

[0035] Further, the extending direction of the first support surface 201 is the same as the extending direction of the first conveying section. The turning part 52 is arranged on the first support surface 201. The reversing side surface is located on the side of the turning part 52 away from the first support surface 201, and the distance between the reversing side surface and the first support surface 201 gradually decreases along the conveying direction of the first conveying section. In this embodiment, the first support surface 201 and the second support surface 202 are connected to each other. The carrying part 30 is located below the tape 40. Along the conveying direction of the first conveying section, the turning side surface of the turning part 52 protrudes from the first support surface 201, that is, the turning part 52 is arranged at the connecting position of the first support surface 201 and the second support surface 202. Such a setting can ensure the smoothness of the turning of the tape 40 by the turning part 52, avoid interference with the turning of the tape 40 by the first support surface 201 or the second support surface 202, so that after the tape 40 passes through the turning part 52, the second side 402 is close to the second support surface 202, and the adhesive surface of the tape 40 faces away from the carrying part 30.

[0036] As Figure 2As shown, the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section is set between 35° and 55°. When the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section is less than 35°, in the initial stage of the flipping of the adhesive sealing film on the tape 40, the lengths of the two side edges at the corner of the sealing film flipped with the tape 40 are quite different, and the force on the corner of the sealing film is uneven, and the situation that the sealing film falls off and separates from the tape 40 may occur; when the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section is greater than 55°, in the initial stage of the flipping of the adhesive sealing film on the tape 40, the lengths of the two side edges at the corner of the sealing film flipped with the tape 40 are quite different, and the force on the corner of the sealing film is uneven, and the situation that the sealing film falls off and separates from the tape 40 may occur. Therefore, in this solution, the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section is set between 35° and 55°, which can ensure that in the initial stage of the flipping of the adhesive sealing film on the tape 40, the difference in the lengths between the two side edges at the corner of the sealing film flipped with the tape 40 is small enough, ensure the uniformity of the force on the corner of the sealing film, reduce the situation of the separation of the sealing film from the tape 40, and ensure the smoothness of the film tearing. Among them, the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section can be set to 35° or 55°. In this embodiment, the included angle between the extending direction of the reversing side face and the extending direction of the first conveying section is α, and α is 45°.

[0037] Furthermore, the flipping part 52 has a top surface and a bottom surface arranged relative to the bearing part 30. The bottom surface of the flipping part 52 faces the bearing part 30, and the reversing side face is an arc transition surface from the bottom surface to the top surface. In this embodiment, the flipping part 52 is an isosceles triangle plate-like structure. The flipping part 52 is horizontally arranged, and the inclined side edge of the flipping part forms the reversing side face. With such a setting, the structure of the flipping part 52 is simple, and the flipping part 52 can play a guiding role in the conveying process of the tape 40, ensuring the smoothness of the conveying process of the tape 40.

[0038] Furthermore, the compaction part 60 is a compaction roller, and the axis direction of the compaction roller is perpendicular to the extending direction of the first conveying section. In this embodiment, the compaction roller is rotatably arranged on the first support surface 201. The setting of the compaction roller has a simple structure, and can ensure the smoothness of the conveying process of the tape 40. Moreover, its peripheral surface contacts the tape 40, which can avoid scratching the tape 40.

[0039] Further, the support portion 20 includes a first support plate 21 and a second support plate 22. Both the first support plate 21 and the second support plate 22 are vertically arranged, and the included angle between the first support plate 21 and the second support plate 22 is set between 80° and 100°. The outer surface of the first support plate 21 forms a first support surface 201, and the outer surface of the second support plate 22 forms a second support surface 202. When the included angle between the first support plate 21 and the second support plate 22 is less than 80° or greater than 100°, the smoothness of the tape 40's commutation and flipping cannot be guaranteed. With the above settings, it can be adapted to the flipping side of the flipping portion 52 to ensure the smoothness of the tape's flipping and commutation. Among them, the included angle between the first support plate 21 and the second support plate 22 can be set to 80° or 100°. In this embodiment, the included angle between the first support plate 21 and the second support plate 22 is β, and β is 90°.

[0040] As Figures 1 to 3 shown, further, the position of the support portion 20 relative to the seat body 10 is adjustable, and the compaction portion 60 is fixed on the support portion 20 to adjust the height of the compaction portion 60 relative to the bearing portion 30 through the support portion 20. In this embodiment, the compaction portion 60 and the right-angled side of the flipping portion 52 perpendicular to the first support surface 201 are arranged adjacent to each other, and the bottom surface of the compaction portion 60 is 1 to 2 mm lower than the bottom surface of the flipping portion 52. With such settings, it can be ensured that the compaction portion 60 and the flipping portion 52 are lifted and lowered synchronously, and after the compaction portion 60 presses the tape 40 onto the sealing film of the workpiece to be processed, the flipping portion 52 can perform secondary compaction and guiding on the compacted tape 40 and the workpiece to be processed, ensuring the firm adhesion between the tape 40 and the workpiece to be processed.

[0041] Further, the support portion 20 has an accommodation space. The film tearing device further includes a first driving portion 70. The first driving portion 70 is arranged on the seat body 10 and is located in the accommodation space. The first driving portion 70 is drivingly connected to the support portion 20 to adjust the height of the support portion 20 relative to the seat body 10. In this embodiment, the space between the inner surfaces of the first support plate 21 and the second support plate 22 forms the accommodation space, and the first driving portion 70 is a lifting cylinder. With such settings, the structural compactness of the entire device can be ensured.

[0042] Further, the film tearing device further includes a first detector 80, a second detector, and an alarm. Among them, the first detector 80 is arranged at one end of the flipping portion 52 away from the unwinding portion 51. The first detector 80 is used to detect whether there is a sealing film on the workpiece to be processed. The second detector is used to detect whether there is a tape 40 on the first conveying section. The alarm is electrically connected to the first detector 80 and the second detector respectively. When the first detector 80 detects that there is still a sealing film on the workpiece to be processed, it proves that the film tearing fails. At this time, the alarm gives an alarm and the film tearing process is restarted; when the second detector detects that there is no tape 40, the alarm gives an alarm and the tape 40 can be re-placed.

[0043] As Figure 1 、 Figure 4 and Figure 5 shown, in this embodiment, the winding part 53 is a driving wheel, which is rotatably arranged on the second support surface 202, and the axis direction of the driving wheel is perpendicular to the second support surface 202; the unwinding part 51 is a driven wheel, which is rotatably arranged on the first support surface 201, and the axis direction of the driven wheel is perpendicular to the first support surface 201. In this embodiment, the conveying assembly further includes a driving motor 54, which is arranged on the second support plate 22. The driving motor 54 is located in the accommodating space, and the output shaft of the driving motor 54 passes through the second support plate 22 and is drivingly connected to the driving wheel. With such an arrangement, the structural compactness of the entire device can be ensured, and the rotational stability of the driving wheel can be ensured.

[0044] In this embodiment, the film tearing device further includes an electric guide rail 90, which is arranged on the seat body 10. The extending direction of the electric guide rail 90 is the same as the sliding direction of the bearing part 30, and the electric guide rail 90 is drivingly connected to the bearing part 30 to enable the bearing part 30 to slide.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0048] For convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0049] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above-mentioned words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A film tearing device, characterized in that, The film tearing device comprises: base(10); A support portion (20) is arranged on the seat body (10), the support portion (20) having a first support surface (201) and a second support surface (202), and an angle is formed between the first support surface (201) and the second support surface (202); A bearing portion (30) is movably arranged on the base body (10), and the bearing portion (30) is used to bear a workpiece to be processed; An adhesive tape (40) having a first side edge (401) and a second side edge (402) arranged opposite to each other in a width direction, wherein the adhesive tape (40) has an adhesive surface and a smooth surface arranged opposite to each other; A conveying assembly for conveying the adhesive tape (40), the conveying assembly comprising an unwinding portion (51), a turning portion (52) and a rewinding portion (53) which are sequentially arranged along the conveying direction of the adhesive tape (40), the unwinding portion (51) and the rewinding portion (53) being arranged on the first supporting surface (201) and the second supporting surface (202) respectively, the turning portion (52) being arranged between the first supporting surface (201) and the second supporting surface (202), the unwinding portion (51) and the turning portion (52) forming a first conveying section, and the turning portion (52) and the rewinding portion (53) forming a second conveying section; the bearing portion (30) being arranged corresponding to the first conveying section The first conveying section (52) is provided with a first side edge (401) of the adhesive tape (40) in the first conveying section, and the moving direction of the adhesive tape (30) is the same as the conveying direction of the first conveying section; the first side edge (401) of the adhesive tape (40) in the first conveying section is arranged close to the first supporting surface (201) and the adhesive surface is arranged toward the bearing section (30); the second side edge (402) of the adhesive tape (40) in the second conveying section is arranged close to the second supporting surface (202) and the adhesive surface is arranged away from the bearing section (30); the flipping section (52) has a reversing side surface, and the reversing side surface is used to flip and change the direction of the adhesive tape (40), so that the adhesive tape (40) at the end of the first conveying section is flipped and changed direction through the reversing side surface after being bonded to the workpiece to be processed; a compacting portion (60), which is disposed on the base (10) and has an adjustable height relative to the bearing portion (30); the compacting portion (60) is located upstream of the flipping portion (52) and on a side of the adhesive tape (40) away from the bearing portion (30); and the compacting portion (60) is used to press the adhesive tape (40) onto the workpiece to be processed; The extension direction of the first supporting surface (201) is the same as the extension direction of the first conveying section, the turning portion (52) is arranged on the first supporting surface (201), the reversing side surface is located on a side of the turning portion (52) away from the first supporting surface (201), and the distance between the reversing side surface and the first supporting surface (201) gradually decreases along the conveying direction of the first conveying section; The flipping part (52) has a top surface and a bottom surface arranged opposite to the bearing part (30). The bottom surface of the flipping part (52) faces the bearing part (30). The direction from the bottom surface to the top surface of the reversing side surface is an arc transition surface; The position of the supporting part (20) relative to the seat body (10) is adjustable. The compaction part (60) is fixed on the supporting part (20) to adjust the height of the compaction part (60) relative to the bearing part (30) through the supporting part (20); The supporting part (20) has an accommodating space. The film tearing device further includes a first driving part (70). The first driving part (70) is arranged on the seat body (10), and the first driving part (70) is located in the accommodating space. The first driving part (70) is drivingly connected to the supporting part (20) to adjust the height of the supporting part (20) relative to the seat body (10).

2. The film tearing device according to claim 1, characterized in that, The included angle between the extending direction of the reversing side surface and the extending direction of the first conveying section is set between 35° and 55°; 3. The film tearing device according to claim 1, characterized in that, The compaction part (60) is a compaction roller, and the axis direction of the compaction roller is perpendicular to the extending direction of the first conveying section; 4. The film tearing device according to claim 1, characterized in that, The supporting part (20) includes a first supporting plate (21) and a second supporting plate (22). Both the first supporting plate (21) and the second supporting plate (22) are vertically arranged. The included angle between the first supporting plate (21) and the second supporting plate (22) is set between 80° and 100°. The outer surface of the first supporting plate (21) forms the first supporting surface (201), and the outer surface of the second supporting plate (22) forms the second supporting surface (202).

5. The film tearing device according to claim 1, characterized in that, The film tearing device further includes: A first detector (80) arranged at one end of the flipping part (52) away from the unwinding part (51). The first detector (80) is used to detect whether there is a sealing film on the workpiece to be processed; A second detector, which is used to detect whether there is the tape (40) on the first conveying section; An alarm, electrically connected to the first detector (80) and the second detector respectively.

6. The film tearing device according to claim 1, characterized in that, The winding part (53) is a driving wheel, which is rotatably arranged on the second supporting surface (202). The axis direction of the driving wheel is perpendicular to the second supporting surface (202); The unwinding part (51) is a driven wheel, which is rotatably arranged on the first supporting surface (201). The axis direction of the driven wheel is perpendicular to the first supporting surface (201).

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