Film tearing device

Abstract

The utility model discloses a kind of film tearing devices, including first, second clamping part, first clamping part can be close to second clamping part along first direction, further include parallel to the first direction and the first clamping part sliding arrangement of pressure holding piece, the elastic member between the first clamping part and the pressure holding piece, one end of the pressure holding piece is equipped with pressure part;The elastic member is used to drive the pressure holding piece to the second clamping part side movement;Non-working mode, first, second clamping part is spaced distribution along first direction, the pressure part is located the first clamping part towards second clamping part side, first clamping part and pressure part have first interval;Working mode, first, second clamping part is close to each other to hold film body, the pressure part is in abutment with the product, and first clamping part and the pressure part have second interval less than the first interval, device mechanism is simple, process is simple.

Description

Technical Field

[0001] This utility model relates to a film-tearing device. Background Technology

[0002] In existing technologies, most film-tearing devices utilize grippers to hold the film, and then drive the grippers to move, causing the film to separate from the product, thus achieving film tearing. To ensure the proper operation of the film-tearing process, the device is usually equipped with a clamping mechanism that presses and fixes the product along the tearing direction to prevent product movement during the tearing process. The workflow of such film-tearing devices is typically as follows: first, the clamping mechanism presses and fixes the product; then, the grippers hold the film, move the grippers along the tearing direction to tear the film; finally, the clamping mechanism releases the product. This workflow is somewhat complex, has low efficiency, and such film-tearing devices have a relatively complex structure and high cost. Utility Model Content

[0003] The purpose of this invention is to provide a new film-tearing device to solve one or more problems of the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a film-removing device for removing film attached to the surface of a product, the film-removing device including a first clamping member and a second clamping member, the first clamping member being disposed relatively close to and relatively far from the second clamping member along a first direction, the film-removing device further including:

[0005] A pressing member is slidably connected to the first clamping member parallel to the first direction, and one end of the pressing member is provided with a pressing part;

[0006] An elastic element is disposed between the first clamping member and the pressing member, and the elastic element is used to provide the force required to drive the pressing member to move toward the second clamping member;

[0007] The first clamping member has a first clamping portion, and the second clamping member has a second clamping portion. The film-tearing device has a non-working mode and a working mode. In the non-working mode, the first clamping portion and the second clamping portion are spaced apart along the first direction, and the pressing portion is located on the side of the first clamping portion facing the second clamping portion, and the first clamping portion and the pressing portion have a first distance along the first direction. In the working mode, the first clamping portion and the second clamping portion move closer to each other to clamp the film between them, the pressing portion abuts against the product, and the first clamping portion and the pressing portion have a second distance along the first direction that is smaller than the first distance.

[0008] In some embodiments, in the non-working mode, the clamping portion is located between the first clamping portion and the second clamping portion along the first direction.

[0009] In some embodiments, the film has an attachment portion covering the upper surface of the product and a protruding portion extending outward from one side of the product, with a boundary line between the attachment portion and the protruding portion; the first spacing is greater than the maximum vertical distance from the edge of the attachment portion to the boundary line.

[0010] In some embodiments, the product has a film-covered area and a blank area not covered by the film, and in the operating mode, the pressing part abuts against the blank area.

[0011] In some embodiments, the film-tearing device includes a carrier for transporting the product, the carrier having a support platform for supporting the product, a slot on one side of the support platform, the film having an attachment portion covering the upper surface of the product and a protruding portion extending outward from one side of the product; when the product is on the support platform, the protruding portion extends out of the slot opening; in the operating mode, the second clamping portion is inserted into the slot.

[0012] In some embodiments, the carrier includes a fixedly disposed first limiting structure and a second limiting structure. The carrier is provided with a first positioning member that can move away from and approach the first limiting structure along a second direction, and a second positioning member that can move away from and approach the second limiting structure along a third direction. The second direction and the third direction intersect, and the first direction is perpendicular to the plane in which the second direction and the third direction are located. The carrier has a fixed state. When in the fixed state, the product is located on the support platform. The first positioning member moves closer to the first limiting structure and clamps the product along the second direction. The second positioning member moves closer to the second limiting structure and clamps the product along the third direction.

[0013] In some embodiments, the first positioning member is movably disposed in the slot, and in the operating mode, the second clamping part is inserted into the slot and the second clamping part is located on the side of the first positioning member away from the first limiting structure.

[0014] In some embodiments, the film-tearing device is provided with a waste bin for collecting the film, and the opening of the waste bin is provided with a brush.

[0015] In some embodiments, a mounting base is fixed to one side of the first clamping member, the mounting base having a mounting hole, the pressing member having a connecting rod extending parallel to the first direction, the connecting rod being slidably inserted into the mounting hole, the pressing part being fixed to the end of the connecting rod, and the elastic member being disposed between the mounting base and the pressing part.

[0016] In some embodiments, the clamping portion has a cushioning pad.

[0017] In some embodiments, the first clamping portion is provided with a toothed groove, and the second clamping portion is provided with a fixing tooth that cooperates with the toothed groove.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The film-tearing device of this utility model is provided with a pressing member slidably connected to the first clamping member. During the process of the first clamping member moving closer to the second clamping member to clamp the film, the pressing member is also driven to move together. During the above process, the pressing part of the pressing member will contact the product, and after contact, the pressing member stops moving. Since there is a first gap between the pressing part and the first clamping part in the non-working mode, after the pressing member stops moving, the first clamping part can continue to move and move closer to the second clamping part. During this process, the elastic member is compressed. After the first and second clamping parts hold the film, the pressing part presses against the product and applies a clamping force. The film-tearing device switches to the working mode, at which point it can drive the first and second clamping parts to move in the opposite direction to the clamping force to tear off the film. During this process, driven by the elastic element, the pressing part slides relative to the first clamping part and maintains a state of contact with the product. At the same time, the pressing part can continue to apply a clamping force to the product to maintain its stability. When the distance between the first clamping part and the pressing part reaches the first distance, as the first and second clamping parts continue to move, the pressing part can disengage from the product and release the clamping fixation. The film-tearing device does not require a separate clamping mechanism, and it simultaneously completes the clamping fixation of the product during the downward clamping of the film and can automatically release the clamping fixation of the product during the film-tearing process. The device structure is simpler, and the workflow is also simpler. Attached Figure Description

[0019] Appendix Figure 1 This is a perspective view of a film-tearing device according to a specific embodiment of the present invention;

[0020] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the middle section structure;

[0021] Appendix Figure 3 For the appendix Figure 2 Enlarged view of point A in the middle;

[0022] Appendix Figure 4 This is a schematic diagram of a waste bin according to a specific embodiment;

[0023] Appendix Figure 5 This is a schematic diagram of the first gripper, the second gripper, and the clamping component in the non-working mode;

[0024] Appendix Figure 6 This is a schematic diagram of the first gripper, the second gripper, and the clamping component in the working mode;

[0025] Appendix Figure 7 For the appendix Figure 1 A schematic diagram of the vehicle;

[0026] Appendix Figure 8 For the appendix Figure 7 Enlarged view of point B in the middle;

[0027] Appendix Figure 9 For the appendix Figure 7 Enlarged view of point C in the middle;

[0028] Appendix Figure 10 This is a schematic diagram of a product and membrane according to a specific embodiment;

[0029] Appendix Figure 11 For the appendix Figure 10 A schematic diagram of the product;

[0030] Wherein: 100, Product; 110, Film application area; 200, Film body; 210, Attachment part; 220, Protruding part; 1, First clamping member; 11, First clamping part; 111, Tooth groove; 12, Mounting base; 13, Mounting hole; 2, Second clamping member; 21, Second clamping part; 211, Fixing tooth; 3, Pressing member; 31, Pressing part; 32, Connecting rod; 4, Elastic member; 5, Waste bin; 51, Brush; 6, Carrier; 61, Support platform; 62, Slot; 63, First limiting structure; 64, Second limiting structure; 65, First positioning member; 66, Second positioning member; 71, Crossbeam; 72, Bracket; 73, Base; 8, Guide rail. Detailed Implementation

[0031] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments, so that the advantages and features of this utility model can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0032] See Figure 1The illustrated film-removing device is used to remove a film 200 attached to the surface of a product 100. The device includes a first clamping member 1 and a second clamping member 2. The first clamping member 1 is positioned relatively close to and relatively far from the second clamping member 2 along a first direction, thereby clamping the film 200. In this embodiment, the film-removing device further includes a pressing member 3 and an elastic member 4. The pressing member 3 is slidably connected to the first clamping member 1 parallel to the first direction, and one end of the pressing member 3 is provided with a pressing portion 31. The elastic member 4 is disposed between the first clamping member 1 and the pressing member 3, and provides the force required to drive the pressing member 3 towards the second clamping member 2.

[0033] In this embodiment, the first clamping member 1 has a first clamping portion 11, and the second clamping member 2 has a second clamping portion 21. The first clamping portion 11 and the second clamping portion 21 are used to clamp the film body 200. The film tearing device has a non-working mode and a working mode. In the non-working mode, see... Figure 5 As shown, the first clamping part 11 and the second clamping part 21 are spaced apart along a first direction, and the pressing part 31 is located on the side of the first clamping part 11 facing the second clamping part 21, and the first clamping part 11 and the pressing part 31 have a first distance along the first direction. In the non-working mode, the first clamping member 1 and the second clamping member 2 open, which can drive the first clamping member 1 and the second clamping member 2 to move, so that the membrane body 200 is inserted into the gap between the first clamping part 11 and the second clamping part 21. In the working mode, see Figure 6 As shown, the first clamping part 11 and the second clamping part 21 approach each other to clamp the film body 200 between them, the pressing part 31 abuts against the product 100, and the first clamping part 11 and the pressing part 31 have a second distance along the first direction that is smaller than the first distance.

[0034] When the film-tearing device switches from non-working mode to working mode, the first clamping member 1 drives the pressing member 3 to move towards the second clamping member 2. During this process, the pressing part 31 of the pressing member 3 comes into contact with the product, and after contact, the pressing member 3 stops moving. Since there is a first gap between the first clamping part 11 and the pressing part 31, after the pressing part 31 is fixed, there is still a certain distance between the first clamping part 11 and the film 200 and the second clamping part 21, so the first clamping member 1 needs to be driven to continue moving. During the continued movement of the first clamping member 1, the pressing member 3 slides relative to the first clamping member 1, causing the elastic member 4 to be compressed. When the first clamping part 11 and the second clamping part 21 come together and clamp the film 200, the film-tearing device switches to working mode. In this state, under the drive of the elastic member 4, the pressing part 31 presses against the product 100 and applies a clamping force to the product 100, so that the product 100 is pressed and fixed. At this time, simply drive the first clamping member 1 and the second clamping member 2 to move synchronously in the opposite direction to the clamping force to pull the film 200 and tear it off. During the tearing process, under the drive of the elastic member 4, the pressing member 3 slides relative to the first clamping member 1 and keeps pressing and fixing the product 100, thereby maintaining the stability of the product 100 during the tearing process.

[0035] In this embodiment, by setting up the holding member 3, during the clamping process of the film 200, the holding member 3 simultaneously forms a pressing and fixing force on the product 100, and during the film tearing process, the holding member 3 can maintain the pressing force on the product 100, thereby maintaining the stability of the product 100. The device does not require a separate pressing mechanism to fix the product 100, simplifying the structural setup of the device. In this embodiment, during the film tearing process, when the distance between the first clamping part 11 and the pressing part 31 reaches the first distance, the first clamping member 1 can drive the holding member 3 to move together, thereby causing the pressing part 31 to disengage from the product 100 and releasing the pressing and fixing force on the product 100. Thus, during the tearing process of the film 200, the film tearing device can also automatically release the pressing and fixing force on the product 100, simplifying the workflow and improving efficiency.

[0036] In this embodiment, the first clamping member 1 is located above the second clamping member 2, and the first clamping member 1 is movable up and down. The pressing member 3 is located on one side of the first clamping member 1, and the pressing member 3 is movable up and down relative to the first clamping member 1. In the non-working mode, the first clamping part 11 and the second clamping part 21 are spaced vertically apart, and driving the first clamping part 11 to move downward realizes the conversion of the film tearing device to the working mode. In the working mode, the first clamping part 11 and the second clamping part 21 approach each other in the vertical direction to form a clamp, and the pressing part 31 abuts downward against the upper part of the product 100. The film 200 is torn off by driving the first clamping member 1 and the second clamping member 2 to move upward synchronously. During this process, the pressing member 3 can maintain the pressure on the product 100 and maintain the stability of the product 100. As the first clamping member 1 and the second clamping member 2 continue to move upward, when the distance between the first clamping part 11 and the pressing part 31 returns to the first distance, the pressing member 3 begins to detach from the product 100 and releases the pressure on the product 100.

[0037] In this embodiment, see Figure 3 As shown, a mounting base 12 is fixedly provided on one side of the first clamping member 1. The mounting base 12 has a mounting hole 13. The clamping member 3 has a connecting rod 32 extending parallel to the first direction. The connecting rod 32 is slidably inserted into the mounting hole 13. A clamping part 31 is fixedly provided at the end of the connecting rod 32. An elastic member 4 is disposed between the mounting base 12 and the clamping part 31. Through the cooperation between the mounting hole 13 and the connecting rod 32, a sliding connection is achieved while providing guidance for the sliding of the clamping member 3. Specifically, the connecting rod 32 extends vertically, and the clamping part 31 is fixedly provided at the lower end of the connecting rod 32.

[0038] In this embodiment, see Figure 1 , Figure 2 As shown, the film-tearing device includes a horizontally extending crossbeam 71, a bracket 72 slidably disposed on the crossbeam 71, and a seat 73 slidably disposed on the bracket 72. A second clamping member 2 is fixedly connected to the seat 73, and a first clamping member 1 is slidably connected to the seat 73. When the film-tearing device switches to the working mode, it drives the bracket 72 to move horizontally and the seat 73 to move vertically, causing the film 200 to enter between the first clamping part 11 and the second clamping part 21. During the film-tearing operation, the seat 73 moves upward, causing the first clamping member 1 and the second clamping member 2 to move upward synchronously.

[0039] In this embodiment, see Figure 5 As shown, in the non-working mode, the pressing part 31 is located between the first clamping part 11 and the second clamping part 21 along the first direction, and the membrane body 200 can enter between the first clamping part 11 and the second clamping part 21 through the gap between the pressing part 31 and the second clamping part 21.

[0040] In this embodiment, see Figure 10 As shown, the film 200 has an attachment portion 210 covering the upper surface of the product 100 and a protruding portion 220 extending outward from one side of the product 100. The first clamping portion 11 and the second clamping portion 21 clamp the protruding portion 220, and the attachment portion 210 is peeled off from the product 100 by pulling the protruding portion 220. In this embodiment, there is a boundary line between the attachment portion 210 and the protruding portion 220, and the first distance is greater than the maximum vertical distance from the edge of the attachment portion 210 to the boundary line. This ensures that the pressing portion 31 is always in contact with the product 100 before the film 200 is completely peeled off, and maintains the stability of the product 100.

[0041] In this embodiment, product 100 has a film-covered area 110 and a blank area not covered by the film body 200. In operation, the pressing part 31 abuts against the blank area. See also Figure 11 As shown, except for the film application area 110, all other areas are blank. The pressing part 31 rests against the blank area to avoid interfering with the film removal operation.

[0042] In this embodiment, the film-tearing device is equipped with a waste bin 5 for collecting the film body 200. After the film body 200 is torn off, the first clamping member 1 and the second clamping member 2 move synchronously and extend into the waste bin 5. Then, the first clamping member 1 and the second clamping member 2 release their grip on the film body 200 and exit the waste bin 5, allowing the film body 200 to fall into the waste bin 5. See also Figure 4 As shown, in this embodiment, the opening of the waste bin 5 is provided with a brush 51. During the process of the first clamping member 1 and the second clamping member 2 exiting the waste bin 5, the brush 51 can clean the first clamping member 1 and the second clamping member 2 to prevent the membrane 200 from sticking to the first clamping member 1 or the second clamping member 2.

[0043] In this embodiment, see Figure 1 , Figure 7 As shown, the film-tearing device includes a carrier 6 for transporting the product 100. The carrier 6 has a support platform 61 for supporting the product 100, and a slot 62 is provided on one side of the support platform 61. When the product 100 is located on the support platform 61, see [reference needed]. Figure 9 As shown, the protruding portion 220 extends out of the slot 62. In the working mode, the second clamping portion 21 is inserted into the slot 62. The slot 62 is designed to avoid interference between the carrier 6 and the second clamping member 2. At the same time, the slot 62 also guides and positions the second clamping member 2 so that the first clamping member 1 and the second clamping member 2 can accurately clamp the protruding portion 220 of the membrane 200.

[0044] In this embodiment, see Figure 8As shown, the carrier 6 includes a fixedly installed first limiting structure 63 and a second limiting structure 64. The carrier 6 is provided with a first positioning member 65 that can move away from and towards the first limiting structure 63 along a second direction, and a second positioning member 66 that can move away from and towards the second limiting structure 64 along a third direction. The second direction and the third direction intersect. The carrier 6 has a fixed state. When in the fixed state, the product 100 is located on the support platform 61. The first positioning member 65 moves closer to the first limiting structure 63 and clamps the product 100 along the second direction, and the second positioning member 66 moves closer to the second limiting structure 64 and clamps the product 100 along the third direction. In this embodiment, the plane containing the second direction and the third direction is perpendicular to the first direction. Specifically, see [link to documentation]. Figure 7 As shown, the first positioning member 65 and the first limiting structure 63, the second positioning member 66 and the second limiting structure 64 clamp and fix the product 100 in the horizontal plane, so that the product 100 can remain stable in the horizontal plane. During the film tearing process, the pressing member 3 fixes the product 100 in the vertical direction, thereby fixing the product 100 in three directions.

[0045] In this embodiment, the second direction is perpendicular to the third direction, which is beneficial to the stability of the product 100 when fixed in the horizontal plane.

[0046] In this embodiment, the carrier 6 is provided with a first slide groove extending along a second direction and a second slide groove extending along a third direction. A first positioning member 65 is movably disposed in the first slide groove, and a second positioning member 66 is movably disposed in the second slide groove. The first slide groove and the second slide groove provide guidance for the movement of the first positioning member 65 and the second positioning member 66, respectively. Specifically, the slot 62 constitutes the first slide groove, and the first positioning member 65 is movably disposed in the slot 62. In the working mode, the first positioning member 65 moves to one side of the slot 62, and the second clamping part 21 is inserted into the slot 62 and located on the side of the first positioning member 65 opposite to the first limiting structure 63.

[0047] In this embodiment, the second direction is parallel to the extension direction of the crossbeam 71, which facilitates the position adjustment of the first clamping member 1 and the second clamping member 2.

[0048] In this embodiment, the film-tearing device is equipped with a guide rail 8, and the carrier 6 can move along the guide rail 8 to realize the transfer of the product 100.

[0049] In this embodiment, the pressing part 31 has a buffer pad. Specifically, the buffer pad is disposed at the bottom end of the pressing part 31 to prevent damage to the product 100 when the pressing part 31 comes into contact with the product 100. See also: Figure 3As shown, the first clamping part 11 is provided with a toothed groove 111, and the second clamping part 21 is provided with a fixed tooth 211 that cooperates with the toothed groove 111. The stability of clamping the membrane 200 is improved by the meshing cooperation between the toothed groove 111 and the fixed tooth 211.

[0050] In summary, the film-tearing device of this embodiment is provided with a pressing member 3 slidably connected to the first clamping member 1. During the process of the first clamping member 1 moving closer to the second clamping member 2 to clamp the film 200, the pressing member 3 is also driven to move together. During the above process, the pressing part 31 of the pressing member 3 will contact the product 100, and after contact, the pressing member 3 stops moving. Since there is a first gap between the pressing part 31 and the first clamping part 11 in the non-working mode, after the pressing member 3 stops moving, the first clamping part 11 can continue to move and move closer to the second clamping part 21. During this process, the elastic member 4 is compressed. After the first clamping part 11 and the second clamping part 21 clamp the film 200, the pressing part 31 presses against the product 100 and applies a pressing force to the product 100. The film tearing device switches to the working mode, at which time it can drive the first clamping member 1 and the second clamping member 2 to move in the opposite direction to the pressing force to tear off the film 200. During this process, under the drive of the elastic member 4, the pressing member 3 slides relative to the first clamping member 1 and remains in a state of abutment against the product 100. At the same time, the pressing member 3 can continue to apply a pressing force to the product 100 to maintain the stability of the product 100. When the distance between the first clamping part 11 and the pressing part 31 reaches the first distance, as the first clamping member 1 and the second clamping member 2 continue to move, the pressing part 31 can disengage from the product 100 and release the pressing and fixing of the product 100. The film-tearing device does not require a separate clamping mechanism, and it simultaneously clamps and fixes the product 100 during the downward clamping of the film 200. It can also automatically release the clamping and fixing of the product 100 during the film-tearing process. The device structure is simpler and the workflow is simpler.

[0051] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A film-removing device for removing film adhered to the surface of a product, the film-removing device comprising a first clamping member and a second clamping member, the first clamping member being disposed relatively close to and relatively far from the second clamping member along a first direction, characterized in that, The film-tearing device further includes: A pressing member, which is slidably connected to the first clamping member parallel to the first direction, and a pressing part is provided at one end of the pressing member; An elastic element is disposed between the first clamping member and the pressing member, and the elastic element is used to provide the force required to drive the pressing member to move toward the second clamping member; The first clamping member has a first clamping portion, and the second clamping member has a second clamping portion. The film-tearing device has a non-working mode and a working mode. In the non-working mode, the first clamping portion and the second clamping portion are spaced apart along the first direction, and the pressing portion is located on the side of the first clamping portion facing the second clamping portion, and the first clamping portion and the pressing portion have a first distance along the first direction. In the working mode, the first clamping portion and the second clamping portion move closer to each other to clamp the film between them, the pressing portion abuts against the product, and the first clamping portion and the pressing portion have a second distance along the first direction that is smaller than the first distance.

2. The film-tearing device according to claim 1, characterized in that: In the non-working mode, the clamping part is located between the first clamping part and the second clamping part along the first direction.

3. The film-tearing device according to claim 1, characterized in that: The film has an attachment portion covering the upper surface of the product and a protruding portion extending outward from one side of the product, with a boundary line between the attachment portion and the protruding portion; the first spacing is greater than the maximum vertical distance from the edge of the attachment portion to the boundary line.

4. The film-tearing device according to claim 1, characterized in that: The product has a film-covered area and a blank area not covered by the film. In the working mode, the pressing part abuts against the blank area.

5. The film-tearing device according to claim 1, characterized in that: The film-tearing device includes a carrier for transporting the product, the carrier having a support platform for supporting the product, and a slot on one side of the support platform. The membrane has an attachment portion covering the upper surface of the product and a protruding portion extending outward from one side of the product; when the product is located on the support platform, the protruding portion extends out of the slot opening; in the working mode, the second clamping portion is inserted into the slot.

6. The film-tearing device according to claim 5, characterized in that: The vehicle includes a fixed first limiting structure and a second limiting structure. The vehicle is provided with a first positioning member that can move away from and move closer to the first limiting structure along a second direction and a second positioning member that can move away from and move closer to the second limiting structure along a third direction. The second direction and the third direction intersect, and the first direction is perpendicular to the plane in which the second direction and the third direction are located. The carrier has a fixed state. When it is in the fixed state, the product is located on the support platform. The first positioning member moves closer to the first limiting structure and clamps the product along the second direction. The second positioning member moves closer to the second limiting structure and clamps the product along the third direction.

7. The film-tearing device according to claim 6, characterized in that: The first positioning member is movably disposed in the slot. In the working mode, the second clamping part is inserted into the slot and the second clamping part is located on the side of the first positioning member away from the first limiting structure.

8. The film-tearing device according to claim 1, characterized in that: The film-tearing device is equipped with a waste bin for collecting the film, and the opening of the waste bin is equipped with a brush.

9. The film-tearing device according to claim 1, characterized in that: A mounting base is fixedly provided on one side of the first clamping member, the mounting base having a mounting hole, the pressing member having a connecting rod extending parallel to the first direction, the connecting rod being slidably inserted into the mounting hole, the pressing part being fixedly provided at the end of the connecting rod, and the elastic member being disposed between the mounting base and the pressing part.

10. The film-tearing device according to claim 1, characterized in that: The clamping part has a buffer pad; and / or, the first clamping part is provided with a toothed groove, and the second clamping part is provided with a fixing tooth that cooperates with the toothed groove.

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