Film clamping device

Abstract

The utility model discloses a film clamping device which is used for clamping a film. The film clamping device comprises a base, a clamping assembly, a buffering assembly and a driving assembly. The clamping assembly comprises an abutting roller and a pressing module, the abutting roller is rotationally connected to the base, and the pressing module is slidably connected to the base and is opposite to the abutting roller; the buffering assembly is elastically connected to the side, away from the abutting roller, of the pressing module. The driving assembly is movably connected to the base along the arc-shaped track to elastically abut against the buffering assembly so as to push the buffering assembly to drive the pressing module to move towards the abutting roller so as to clamp the film between the pressing module and the abutting roller, the structure is simple, after the film is clamped, the film can be conveniently used for screen pasting operation, and the situation that the film shakes and is unstable in the screen pasting operation process is avoided.

Description

Technical Field

[0001] The present application relates to the field of film clamping technology, and in particular to a film clamping device. Background Art

[0002] When producing electronic products, such as mobile phone screens, it is usually necessary to apply a film on the screen to protect the screen. Before applying the film, one end of the film needs to be pressed tightly before the film application operation. At present, a cylinder-driven pressure block is usually used to press the film on the slide. Since the pressure block and the slide are in surface contact, the contact accuracy between the pressure block and the slide is low. In addition, due to processing errors and other reasons, when the pressure block and the slide are in contact with each other, there will be a gap between the pressure block and the slide. At this time, the pressure block and the slide cannot clamp the film, causing the film to move, affecting the subsequent film application operation. Utility Model Content

[0003] In view of the above, it is necessary to propose a film clamping device that can clamp the film to prevent the film from moving during the film lamination process.

[0004] An embodiment of the present application provides a film clamping device for clamping a film, the film clamping device comprising a base; a clamping assembly comprising a holding roller and a pressing module, the holding roller being rotatably connected to the base, the pressing module being slidably connected to the base and spaced apart from the holding roller; a buffer assembly elastically connected to a side of the pressing module facing away from the holding roller; and a driving assembly movably connected to the base along an arc trajectory to elastically abut against the buffer assembly, so as to push the buffer assembly to drive the pressing module to move toward the holding roller to clamp the film between the pressing module and the holding roller.

[0005] When the film clamping device is in use, the driving component is rotated to make the driving component abut against and push the buffer component. At this time, the buffer component moves with the pressing module to approach the holding roller, thereby clamping the film. When the film needs to be loosened, the driving component is rotated in the opposite direction to make the driving component rotate away from the buffer component. Since the driving component no longer applies force to the pressing module, the clamping component releases the film. The film can be clamped by using the film clamping device. The operator or the manipulator then pulls the film to keep it flat, and then covers the film on the product to attach the film to the product. Since the holding roller and the pressing module are in line contact when clamping the film, the contact accuracy between the holding roller and the pressing module is higher than that of the surface contact. Therefore, it is not easy for the film to move when the holding roller and the pressing module clamp the film, thereby avoiding problems such as film shaking and instability during the film sticking operation. In addition, under the buffering effect of the buffer assembly, the pressing module and the abutting roller are in elastic contact, thereby preventing the pressing module and the abutting roller from exerting excessive clamping force on the film, so that the clamping assembly is not likely to damage the film.

[0006] In some embodiments, the clamping module includes a sliding seat, which is slidably disposed on the base, and the buffer assembly is connected to the sliding seat; a clamping roller, which is rotatably connected to the sliding seat and is spaced apart from the abutting roller, and the clamping roller is used to approach the abutting roller under the drive of the sliding seat to clamp the film with the abutting roller.

[0007] In some embodiments, a plurality of evenly distributed protrusions are provided on the circumferential sides of the abutting roller and the circumferential sides of the pressing roller, and the film is clamped by the protrusions on the abutting roller and the protrusions on the pressing roller.

[0008] In some embodiments, the buffer assembly includes a connecting member slidably connected to the sliding seat; a buffer member is sleeved on the connecting member, and the two ends of the buffer member are respectively abutted against the connecting member and the sliding seat, and the buffer member is used to make the connecting member elastically abut against the driving assembly.

[0009] In some embodiments, the connecting member includes a sliding rod, which is slidably inserted into the sliding seat, and the buffer member is sleeved on the sliding rod; a limiting plate, which is connected to one end of the sliding rod close to the clamping roller, and the limiting plate is used to abut the sliding seat to limit the sliding rod from slipping off the sliding seat; a supporting plate, which is connected to one end of the sliding rod away from the clamping roller, and both ends of the buffer member are respectively abutted against the sliding seat and the supporting plate, and the cross-sectional area of ​​the supporting plate is larger than the cross-sectional area of ​​the limiting plate, and the supporting plate is used to abut against the driving assembly.

[0010] In some embodiments, the base is provided with two arc-shaped holes, and the two arc-shaped holes are respectively opened on two opposite sides of the base, and the driving assembly includes a driving plate, which is arranged between the two arc-shaped holes and located on the side of the buffer assembly away from the clamping module; a rotating shaft, which is connected to the driving plate, and both ends of the rotating shaft are rotatably connected to the base; a guide shaft, which is connected to the driving plate and is spaced apart from the rotating shaft, and both ends of the guide shaft are respectively slidably connected to the two arc-shaped holes, and the guide shaft is used to guide the driving plate to move in an arc trajectory so that the driving plate abuts against the buffer assembly.

[0011] In some embodiments, the driving assembly further includes a pulley, which is inserted into the driving plate and rotatably connected to the guide shaft, and the driving plate abuts against the buffer assembly through the pulley so that the buffer assembly brings the clamping module close to the abutting roller.

[0012] In some embodiments, the sliding seat includes a bottom plate, which is slidably connected to the base, and the pressure roller is rotatably connected to the bottom plate; a vertical plate, which is connected to the bottom plate and located on the side of the pressure roller away from the holding roller, and the buffer assembly is connected to the vertical plate; a pulling plate, which is connected to the bottom plate and located on the side of the vertical plate away from the pressure roller, and the driving assembly moves away from the buffer assembly along the arc trajectory and abuts against the pulling plate, so that the pulling plate drives the pressure roller away from the holding roller through the bottom plate so that the pressure roller and the holding roller release the film.

[0013] In some embodiments, the film clamping device also includes a connecting rod, which is rotatably connected to the base and located below the clamping assembly, and the connecting rod is used to guide the film to the clamping assembly; two limit members are spaced apart on the connecting rod, and the two limit members are used to abut against opposite sides of the film to limit the displacement of the film.

[0014] In some embodiments, the base is provided with a receiving groove, the supporting roller is rotatably connected in the receiving groove, the clamping module is slidably connected to the two opposite groove walls of the receiving groove, and the driving assembly is rotatably connected to the two opposite groove walls of the receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the film clamping device provided in an embodiment of the present application.

[0016] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the base in the clamping device is shown.

[0017] Figure 3 yes Figure 1 A schematic three-dimensional structural diagram of a buffer assembly and a clamping assembly in a film clamping device is shown.

[0018] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the connecting piece in the clamping device is shown.

[0019] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the driving component in the film clamping device is shown.

[0020] Figure 6 yes Figure 1 The diagram shows the state of the film clamping device clamping the film.

[0021] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure of the film clamping device from another perspective is shown.

[0022] Main component symbols

[0023] Film clamping device 100

[0024] Base 10

[0025] Accommodation slot 11

[0026] Guide hole 12

[0027] Arc hole 13

[0028] Clamping assembly 20

[0029] Retaining roller 21

[0030] Compression module 22

[0031] Sliding seat 221

[0032] Pressure roller 222

[0033] Bottom plate 223

[0034] Vertical board 224

[0035] Ear plate 225

[0036] Pull plate 226

[0037] Buffer component 30

[0038] Connector 31

[0039] Slider 311

[0040] Limiting plate 312

[0041] Support plate 313

[0042] Buffer 32

[0043] Drive assembly 40

[0044] Driver board 41

[0045] Shaft 42

[0046] Guide shaft 43

[0047] Handle 44

[0048] Pulley 45

[0049] Raised portion 50

[0050] Connecting rod 60

[0051] Limiting piece 70 DETAILED DESCRIPTION

[0052] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0053] In the description of the present application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0056] See also Figure 1 The embodiment of the present application provides a film clamping device 100. The film clamping device 100 is used to clamp a film. For example, after the film clamping device 100 clamps the film, the film is straightened by manual or mechanical hands in cooperation with the film clamping device 100 to attach the film to the surface of the product.

[0057] See also Figure 1 The film clamping device 100 includes a base 10, a clamping assembly 20, a buffer assembly 30 and a driving assembly 40. The clamping assembly 20 is connected to the base 10, and specifically, the clamping assembly 20 includes a holding roller 21 and a pressing module 22. The holding roller 21 is rotatably connected to the base 10, and the pressing module 22 is slidably connected to the base 10 and is spaced apart from the holding roller 21. The buffer assembly 30 is elastically connected to the side of the pressing module 22 away from the holding roller 21. The driving assembly 40 is rotatably connected to the base 10 along an arc trajectory to elastically abut against the buffer assembly 30, so as to push the buffer assembly 30 to drive the pressing module 22 to move toward the holding roller 21 to clamp the film between the pressing module 22 and the holding roller 2.

[0058] When it is necessary to clamp the film, the driving assembly 40 is rotated so that the driving assembly 40 first elastically abuts against the buffer assembly 30, and the buffer assembly 30 then pushes the clamping module 22 toward the abutting roller 21 to clamp the film with the abutting roller 21. The purpose of clamping the film can be achieved by adopting the above-mentioned film clamping device 100. After the film is clamped, the operator or the manipulator pulls the film to keep it flat, so as to facilitate the film to be attached to the mobile phone screen. When it is necessary to loosen the film, the driving assembly 40 rotates away from the buffer assembly 30. At this time, the buffer assembly 30 releases its elasticity and pulls the clamping module 22 away from the abutting roller 21, so that the clamping module 22 and the abutting roller 21 loosen the film.

[0059] In this way, since the abutting roller 21 and the pressing module 22 are in line contact when clamping the film, the contact accuracy between the abutting roller 21 and the pressing module 22 is higher than that of the surface contact, so the film is not easy to move when the abutting roller 21 and the pressing module 22 clamp the film. In addition, since a buffer component 30 is provided between the pressing module 22 and the driving component, the buffering effect of the buffer component 30 can avoid the rigid contact between the pressing module 22 and the abutting roller 21, so that the pressing module 22 and the abutting roller 21 are in elastic contact, thereby avoiding the pressing module 22 and the abutting roller 21 from exerting excessive clamping force on the film, so that the clamping component 20 is not easy to damage the film.

[0060] See also Figure 1 and Figure 2 In this embodiment, a receiving groove 11 is provided on the base 10, and the holding roller 21 is rotatably connected to the receiving groove 11. Specifically, the two ends of the holding roller 21 are rotatably connected to the two opposite groove walls of the receiving groove 11 respectively. The clamping module 22 is located in the receiving groove 11 and is slidably connected to the two opposite groove walls of the receiving groove 11. The driving assembly 40 is located in the receiving groove 11 and is rotatably connected to the two opposite groove walls of the receiving groove 11. In this way, since the clamping assembly 20 and the driving assembly 40 are both located in the receiving groove 11, the receiving groove 11 serves to accommodate the clamping assembly 20 and the driving assembly 40. In addition, by arranging the clamping assembly 20 and the driving assembly 40 in the receiving groove 11, the clamping assembly 20 and the driving assembly 40 can be protected.

[0061] See also Figure 1 and Figure 3In the present embodiment, the clamping module 22 includes a sliding seat 221 and a clamping roller 222. The sliding seat 221 is slidably connected to the receiving groove 11 of the base 10, and the buffer assembly 30 is connected to the sliding seat 221. The clamping roller 222 is rotationally connected to the sliding seat 221, and the clamping roller 222 and the abutting roller 21 are spaced apart. In the specific implementation process, when the driving assembly 40 pushes the buffer assembly 30, the buffer assembly 30 drives the sliding seat 221 to slide toward the abutting roller 21, so that the clamping roller 222 and the abutting roller 21 clamp the film. In this way, since the clamping roller 222 and the abutting roller 21 are both rotationally connected, when the operator pulls the film, the clamping roller 222 and the abutting roller 21 will rotate and release the film. By setting the clamping roller 222 and the supporting roller 21 in a rotating connection mode, when releasing the film, the operator does not need to frequently operate the driving assembly 40 to loosen the film. The operator only needs to pull the film to achieve the purpose of lengthening the film, which makes the operator's operation more convenient and quick, which is conducive to improving work efficiency.

[0062] See also Figure 1 and Figure 3 In the embodiment of the present application, guide holes 12 are respectively provided on two opposite groove walls of the accommodating groove 11 , and the guide holes 12 are extended along the sliding direction of the sliding seat 221 .

[0063] The sliding seat 221 includes a bottom plate 223, a vertical plate 224, an ear plate 225 and a pull plate 226. The vertical plate 224 is vertically connected to the bottom plate 223, and the buffer assembly 30 is connected to the vertical plate 224. The two edges of the bottom plate 223 are slidably connected to the two opposite groove walls of the accommodating groove 11. There are two ear plates 225, which are arranged opposite to the bottom plate 223. The two ends of the pressing roller 222 are rotatably connected to the ear plates 225, and the two ends of the pressing roller 222 protrude into the two guide holes 12 respectively.

[0064] When clamping the film, the driving assembly 40 pushes against the buffer assembly 30, and the linkage vertical plate 224 drives the bottom plate 223 to slide, so that the ear plate 225 on the bottom plate 223 simultaneously pushes the pressing roller 222 to slide along the guide hole 12 to approach the abutting roller 21. When the bottom plate 223 drives the pressing roller 222 to contact the abutting roller 21, the pressing roller 222 and the abutting roller 21 clamp the film. In this way, by making the two ends of the pressing roller 222 slide in the two guide holes 12 respectively, the guide holes 12 guide the pressing roller 222 in the process of the pressing roller 222 approaching the abutting roller 21.

[0065] The pull plate 226 is vertically connected to the bottom plate 223 and is located on the side of the vertical plate 224 away from the pressure roller 222. In the specific implementation process, when the film needs to be loosened, the driving assembly 40 rotates away from the buffer assembly 30 and abuts against the pull plate 226. The driving assembly 40 pushes the pull plate 226 to make the pull plate 226 move with the bottom plate 223, and the bottom plate 223 moves the pressure roller 222 away from the abutting roller 21, thereby loosening the film.

[0066] In order to enable the pressure roller 222 and the abutting roller 21 to clamp the film. The circumferential side of the pressure roller 222 and the circumferential side of the abutting roller 21 are provided with a plurality of evenly distributed protrusions 50, the protrusions 50 are long strip structures, and the protrusions 50 are extended along the axial direction of the pressure roller 222. In the specific implementation process, when clamping the film, the protrusions 50 on the pressure roller 222 and the protrusions 50 on the abutting roller 21 will clamp the film. In this way, by providing the protrusions 50 on the pressure roller 222 and the abutting roller 21, the friction force when the pressure roller 222 and the abutting roller 21 clamp the film can be increased, thereby making the clamped film more stable.

[0067] See also Figure 3 , the number of buffer components 30 is two, and the two buffer components 30 are arranged on the vertical plate 224 of the sliding seat 221 at intervals. The buffer component 30 includes a connecting member 31 and a buffer component 32. The connecting member 31 is slidably connected to the vertical plate 224, and the buffer component 32 can be a spring. The buffer component 32 is sleeved on the connecting member 31, and the two ends of the buffer component 32 are respectively in contact with the vertical plate 224 and the connecting member 31. Under the action of the buffer component 32, the driving component 40 and the connecting member 31 are elastically supported. It can be understood that the number of buffer components 30 can also be more or less.

[0068] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, the connecting member 31 of each buffer assembly 30 includes a slide bar 311, a limit plate 312 and a support plate 313. The slide bar 311 is slidably arranged on the vertical plate 224. The limit plate 312 is a circular plate. The limit plate 312 is connected to one end of the slide bar 311 close to the pressing roller 222. The support plate 313 is also a circular plate, and the cross-sectional area of ​​the support plate 313 is larger than the cross-sectional area of ​​the limit plate 312. The support plate 313 is connected to one end of the slide bar 311 away from the pressing roller 222. The buffer member 32 is sleeved on the slide bar 311, and the two ends of the buffer member 32 are respectively abutted against the vertical plate 224 and the support plate 313.

[0069] In the specific implementation process, when it is necessary to clamp the film, the driving component 40 pushes the abutting plate 313 of the connecting member 31, and the connecting member 31 drives the sliding seat 221 to slide toward the abutting roller 21, and at the same time, the sliding seat 221 drives the clamping roller 222 to approach the abutting roller 21 to clamp the film with the abutting roller 21. When the clamping roller 222 abuts against the abutting roller 21, the clamping roller 222 no longer moves. As the driving component 40 continues to push the abutting plate 313 of the connecting member 31, the abutting plate 313 begins to compress the buffer 32, and the buffer 32 performs buffering at this time. In this way, the buffering effect of the buffer 32 can prevent the clamping roller 222 and the abutting roller 21 from excessively clamping the film, resulting in the film being unable to be drawn out or being clamped. In addition, since the diameter of the abutting plate 313 is larger than the diameter of the limiting plate 312, the driving component 40 can be more easily abutted against the abutting plate 313 by increasing the diameter of the abutting plate 313.

[0070] See also Figure 1 , Figure 2 and Figure 5 , arc-shaped holes 13 are provided on both sides of the base 10, and the two arc-shaped holes 13 are respectively located on the two opposite groove walls of the accommodating groove 11. The driving assembly 40 includes a driving plate 41, a rotating shaft 42 and a guide shaft 43. The driving plate 41 is arranged between the two arc-shaped holes 13 and is located on the side of the buffer assembly 30 away from the clamping module 22. The rotating shaft 42 is connected to the driving plate 41, and the two ends of the rotating shaft 42 are respectively rotatably connected to the base 10. The guide shaft 43 is connected to the driving plate 41 and is spaced apart from the rotating shaft 42. The guide shaft 43 and the rotating shaft 42 are arranged in parallel, and the two ends of the guide shaft 43 are respectively slidably connected in the two arc-shaped holes 13.

[0071] In the specific implementation process, when the driving plate 41 is rotated, the driving plate 41 rotates around the rotating shaft 42, and the guide shaft 43 slides along the arc hole 13. When the driving plate 41 rotates to a position abutting against the abutting plate 313, the driving plate 41 pushes the connecting member 31 so that the connecting member 31 pushes the sliding seat 221 to slide. In this way, since the guide shaft 43 is slidably arranged in the arc hole 13, the arc hole 13 can not only guide the driving plate 41 so that the driving plate 41 moves in an arc track, but also limit the rotation range of the driving plate 41 so that the driving plate 41 rotates within a specified range.

[0072] The driving assembly 40 further includes a handle 44, which is rotatably connected to one side of the base 10, and the handle 44 is connected to one end of the guide shaft 43. In the specific implementation process, when the handle 44 is manually rotated, the handle 44 slides in the arc hole 13 with the guide shaft 43, and the guide shaft 43 drives the driving plate 41 to rotate so that the driving plate 41 pushes against the holding plate 313 of the connecting member 31 or the driving plate 41 pushes against the push-pull plate 226. Since the film is clamped by manual drive in this embodiment, the use of the cylinder is reduced, which not only reduces the cost but also reduces the failure rate, and improves the work efficiency.

[0073] In order to reduce the wear of the driving plate 41, the driving assembly 40 further includes a pulley 45, which is inserted into the driving plate 4 and rotatably connected to the guide shaft 43. The driving plate 41 abuts against the buffer assembly 30 through the pulley 45. In a specific implementation, when the driving plate 41 abuts against the abutting plate 313 with the pulley 45, the pulley 45 can roll along the abutting plate 313. In this way, by arranging the pulley 45 on the driving plate 41, the friction between the driving assembly 40 and the connecting member 31 can be reduced, thereby reducing the wear of the driving plate 41.

[0074] See also Figure 2 , Figure 5 and Figure 6 When the guide shaft 43 rotates to the rightmost end of the arc hole 13, the driving plate 41 is at the right limit position, and the pulley 45 on the driving plate 41 abuts against the abutting plate 313. At this time, the pressing roller 222 and the abutting roller 21 clamp the film; please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 When the guide shaft 43 rotates to the leftmost end of the arc hole 13, the driving plate 41 is at the left limit position. At this time, the pulley 45 of the driving plate 41 abuts against the push-pull plate 226 to make the clamping roller 222 and the abutting roller 21 release the film.

[0075] See also Figure 1 and Figure 7 The film clamping device 100 further includes a connecting rod 60 and two stoppers 70. The connecting rod 60 is rod-shaped and connected to the base 10 and located below the clamping assembly 20. The two stoppers 70 are connected to the connecting rod 60 and are spaced apart. The connecting rod 60 abuts against the film, and the two stoppers 70 abut against both sides of the film. The two stoppers 70 limit the film to prevent the film from deflecting, so that the film can slide accurately along the connecting rod 60.

[0076] The working process of the film clamping device 100 provided in the embodiment of the present application is roughly as follows:

[0077] When the film needs to be clamped, the handle 44 is manually turned to make the handle 44 slide along the arc hole 13 with the guide shaft 43. When the guide shaft 43 gradually slides to the uppermost end of the arc hole 13, the pulley 45 on the drive plate 41 pushes the connecting member 31, so that the connecting member 31 elastically moves the sliding seat 221 toward the abutting roller 21, thereby allowing the clamping roller 222 and the abutting roller 21 to clamp the film.

[0078] When the film needs to be loosened, the handle 44 is manually turned to make the handle 44 slide along the arc hole 13 with the guide shaft 43. When the guide shaft 43 gradually slides to the lowermost end of the arc hole 13, the buffer member 32 on the connecting member 31 elastically opens to push the pull plate 226 on the sliding seat 221 to reset, so that the sliding seat 221 slides in the direction away from the abutting roller 21, thereby causing the clamping roller 222 and the abutting roller 21 to loosen the film.

[0079] The film clamping device 100 of this embodiment can realize the process of clamping and releasing the film by turning the handle 44. When the film clamping device 100 clamps the film, the operator or the manipulator pulls the film to keep the film flat, so as to facilitate the film to be attached to the product. Since the film clamping device 100 can complete the clamping and releasing of the film by manual operation, the operation is simple and quick. Since the film clamping device 100 does not use a cylinder as a power source for clamping the film, the problem that the film clamping device 100 cannot be used due to the failure of the cylinder can be avoided. In addition, in this embodiment, by arranging a buffer assembly 30 between the drive assembly 40 and the clamping module 22, the film can be buffered to prevent the drive assembly 40 from driving the clamping module 22 and the abutting roller 21 to rigidly contact to avoid clamping the film. In this embodiment, by arranging a connecting rod 60 and a stopper 70 below the clamping assembly 20, the connecting rod 60 and the stopper 70 guide the film to guide the film into the clamping assembly 20, thereby avoiding the film from being deflected.

[0080] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A film clamping device, characterized in that: Used for clamping a film, the film clamping device comprises: Pedestal; A clamping assembly, comprising a holding roller and a pressing module, wherein the holding roller is rotatably connected to the base, and the pressing module is slidably connected to the base and spaced apart from the holding roller; A buffer assembly is elastically connected to a side of the pressing module facing away from the abutting roller; The driving component is movably connected to the base along an arc track to elastically abut against the buffer component, so as to push the buffer component to drive the pressing module to move toward the abutting roller to clamp the film between the pressing module and the abutting roller.

2. The film clamping device according to claim 1, characterized in that: The compression module comprises: A sliding seat, slidably disposed on the base, and the buffer assembly is connected to the sliding seat; A pressure roller is rotatably connected to the sliding seat and spaced apart from the abutting roller. The pressure roller is used to approach the abutting roller under the drive of the sliding seat to clamp the film with the abutting roller.

3. The film clamping device according to claim 2, characterized in that: The peripheral sides of the abutting roller and the peripheral sides of the pressing roller are both provided with a plurality of evenly distributed protrusions, and the film is clamped by the protrusions on the abutting roller and the protrusions on the pressing roller.

4. The film clamping device according to claim 2, characterized in that: The buffer assembly comprises: A connecting member, slidably connected to the sliding seat; The buffer member is sleeved on the connecting member, and two ends of the buffer member are respectively in contact with the connecting member and the sliding seat, and the buffer member is used to make the connecting member elastically contact with the driving component.

5. The film clamping device according to claim 4, characterized in that: The connecting piece comprises: A slide rod is slidably arranged on the slide seat, and the buffer is sleeved on the slide rod; A limit plate connected to one end of the slide bar close to the pressing roller, the limit plate being used to abut against the slide seat to limit the slide bar from slipping off the slide seat; The abutment plate is connected to one end of the sliding rod away from the clamping roller, and the two ends of the buffer member are respectively abutted against the sliding seat and the abutment plate. The cross-sectional area of ​​the abutment plate is larger than the cross-sectional area of ​​the limit plate, and the abutment plate is used to abut against the driving assembly.

6. The film clamping device according to claim 1, characterized in that: The base is provided with two arc-shaped holes, which are respectively opened on two opposite sides of the base, and the driving assembly includes: A driving plate, disposed between the two arc-shaped holes and located on a side of the buffer assembly away from the pressing module; A rotating shaft connected to the driving plate, and two ends of the rotating shaft are rotatably connected to the base; The guide shaft is connected to the driving plate and spaced apart from the rotating shaft. The two ends of the guide shaft are respectively slidably connected to the two arc holes. The guide shaft is used to guide the driving plate to move in an arc trajectory so that the driving plate abuts against the buffer assembly.

7. The film clamping device according to claim 6, characterized in that: The driving assembly also includes a pulley, which is inserted into the driving plate and rotatably connected to the guide shaft. The driving plate abuts against the buffer assembly through the pulley, so that the buffer assembly brings the pressing module close to the abutting roller.

8. The film clamping device according to claim 2, characterized in that: The sliding seat comprises: A bottom plate is slidably connected to the base, and the pressing roller is rotatably connected to the bottom plate; A vertical plate connected to the bottom plate and located at a side of the pressing roller away from the abutting roller, wherein the buffer assembly is connected to the vertical plate; A pulling plate is connected to the bottom plate and is located on the side of the vertical plate away from the pressure roller. The driving assembly moves away from the buffer assembly along the arc trajectory and abuts against the pulling plate, so that the pulling plate drives the pressure roller away from the holding roller through the bottom plate so that the pressure roller and the holding roller release the film.

9. The film clamping device according to claim 1, characterized in that: The film clamping device also includes: A connecting rod, rotatably connected to the base and located below the clamping assembly, the connecting rod being used to guide the film to the clamping assembly; Two limiting members are arranged at intervals on the connecting rod, and the two limiting members are used to abut against opposite sides of the film to limit the deviation of the film.

10. The film clamping device according to claim 1, characterized in that: The base is provided with a receiving groove, the holding roller is rotatably connected in the receiving groove, the pressing module is slidably connected to two opposite groove walls of the receiving groove, and the driving component is rotatably connected to two opposite groove walls of the receiving groove.

Images