Film applicator

Abstract

The utility model discloses a kind of film applicators, including base, elastic sheet and positioning member;The side surface of base along first direction is equipped with installation area, and installation area is used to place target object;Elastic sheet and positioning member are connected to base, and are spaced apart and set in the opposite sides of installation area along second direction, to position positioning film;Second direction and first direction are perpendicular;Elastic sheet has support surface, support surface is spaced apart in installation area along first direction, and is used to support the positioning film being positioned;Elastic sheet can be elastically bent towards the side of positioning member, so that the positioning film being positioned can be close to installation area when being subjected to pressure towards installation area.Elastic sheet can position positioning film in addition to positioning positioning film, and the end of positioning film being positioned by elastic sheet can be supported in first direction using support surface, so that the end of positioning film and installation area maintain spacing, so that protective film above positioning film can effectively avoid contacting target object placed in installation area before the positioning film being positioned is pressed.

Description

Technical Field

[0001] This utility model relates to the field of film application equipment technology, and in particular to a film applicator. Background Technology

[0002] To prevent damage to the screens of mobile phones and other objects from impacts, tempered glass screen protectors are usually applied to the screens. Existing screen protectors come with release films on both sides at the factory; these two release films are a positioning film and a peel-off film, respectively.

[0003] The positioning film has positioning holes at both ends; the film applicator includes a base, a first positioning element, and a second positioning element; the base has an installation area for placing the target object; the first and second positioning elements are both connected to the base and are spaced apart on opposite sides of the installation area along its length; the first and second positioning elements are used to position the positioning film. When applying the film, first place the target object in the installation area, then fit the positioning holes at both ends of the positioning film onto the first positioning component and the second positioning component respectively, and place the tear-off film on the side of the protective film closest to the installation area. This completes the installation of the positioning film assembly on the film applicator.

[0004] Next, first peel off the protective film, then use a roller to press the positioning film, causing it to move the protective film closer to the target object, and finally attach the protective film to the display screen of the target object. Then peel off the positioning film to complete the film application operation.

[0005] However, in actual operation, before the protective film (actually the positioning film) is pressed with the roller, the protective film on the positioning film is prone to touching the target object, causing the entire tempered film to be scrapped and unusable. Utility Model Content

[0006] This utility model provides a film applicator, which aims to solve the problem that, during the film application process of existing film applicators, the protective film on the positioning film is prone to touching the target object before the positioning film is pressed.

[0007] This utility model provides a film applicator for attaching a protective film to a target object. Positioning films and peel-off films are respectively attached to opposite sides of the protective film. The applicator includes a base, a spring, and a positioning element. The base has an installation area on one side surface along a first direction, where the target object is placed. The spring and the positioning element are both connected to the base and spaced apart on opposite sides of the installation area along a second direction to position the positioning film. The second direction is perpendicular to the first direction. The spring has a support surface spaced along the first direction from the installation area and used to support the positioned positioning film. The spring can elastically bend towards the positioning element, so that when the positioned positioning film is subjected to pressure towards the installation area, it can move closer to the installation area.

[0008] Optionally, along the first direction, the spring includes a support portion, a positioning portion, and a limiting portion connected in sequence; wherein, the end of the support portion away from the positioning portion is connected to the base; the end face of the support portion near the positioning portion is the support surface; the positioning portion is adapted to fit the positioning film so as to position the positioning film; the limiting portion is used to prevent the positioning film fitted on the positioning portion from detaching from the end of the positioning portion away from the support portion.

[0009] Optionally, the spring sheet has a window that extends through the spring sheet along the second direction; the supporting surface is spaced apart from the window and located on the side of the window away from the base.

[0010] Optionally, the spring is detachably connected to the base.

[0011] Optionally, the base is provided with a slot, one end of the spring piece is pluggably installed in the slot, and the other end of the spring piece is located outside the slot and is used to position and support the positioning film.

[0012] Optionally, the slot includes a first slot, a second slot, a third slot, and a fourth slot; the first slot is used to install the spring piece and connects the second slot, the third slot, and the fourth slot; along the second direction, the second slot and the third slot are both located between the first slot and the mounting area, and the fourth slot is located on the side of the first slot away from the mounting area; along the third direction, the second slot and the third slot are spaced apart at both ends of the first slot, and the fourth slot is located between the second slot and the fourth slot; when the spring piece is installed in the first slot, along the second direction, one edge of the spring piece is opposite to the second slot, the other edge of the spring piece is opposite to the third slot, and the middle part of the spring piece is opposite to the fourth slot; the first direction, the second direction, and the third direction are perpendicular to each other.

[0013] Optionally, the base is further provided with a guide groove, which penetrates the base along the first direction; along the second direction, the guide groove is located between the mounting area and the positioning member, for allowing the tear-off film on the positioning film to pass through.

[0014] Optionally, in the first direction, the base has a bottom surface and a bearing surface disposed opposite to each other, and the mounting area is located on the side where the bearing surface is located; along the direction from the bottom surface to the bearing surface, the spring and the positioning member both protrude from the bearing surface in order to position the positioning film.

[0015] Optionally, the bearing surface is provided with a mounting groove, and the mounting area is at least a portion of the mounting groove; the side wall of the mounting groove is provided with a force-applying groove, which communicates with the mounting groove and extends to the bearing surface.

[0016] Optionally, the positioning element includes two positioning posts spaced apart on the base along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other; the bearing surface is provided with a clearance groove, which is located on the side of the mounting area away from the spring piece and extends through the base along the direction from the spring piece to the positioning post, and a portion of the clearance groove is located between the two positioning posts.

[0017] In the film applicator provided in this embodiment of the utility model, in addition to positioning the positioning film, the spring can also support the end of the positioning film that is positioned by the spring in the first direction using the supporting surface, so that the end of the positioning film is kept at a distance from the installation area, thereby effectively preventing the protective film on the positioning film from contacting the target object placed in the installation area before the positioning film is pressed.

[0018] In addition, when pressure is applied to the positioning film toward the installation area, the positioning film can bend the spring clip, making it easier for the positioning film and the protective film on the positioning film to get closer to the target object in the installation area, so that the protective film can be successfully attached to the target object in the installation area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a film applicator provided in one embodiment of the present invention; Figure 2This is a schematic diagram of the structure of the base of the film applicator provided in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the spring sheet of the film applicator provided in one embodiment of the present invention; Figure 4 This is a schematic diagram of the defoaming roller of the film applicator provided in one embodiment of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the defoaming roller of the film applicator provided in one embodiment of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the film application process of the film applicator provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a protective film assembly.

[0021] Instruction manual illustrations and reference numerals: 100. Film applicator; 200. Protective film assembly; 201. Protective film; 202. Positioning film; 203. Peel-off film; 204. Positioning hole; 300. Target object; 1. Base; 11. Mounting area; 12. Bottom surface; 13. Bearing surface; 14. Mounting groove; 15. Force application groove; 16. Clearance groove; 17. Guide groove; 18. Slot; 181. First groove; 182. Second groove; 183. Third groove; 184. Fourth groove; 2. Spring clip; 21. Support surface; 22. Support part; 221. Insertion part; 222. Deformable part; 23. Positioning part; 24. Limiting part; 25. Window; 3. Positioning components; 31. Positioning pins; 4. Defoaming roller; 41. Support; 411. Crossbeam; 412. First connecting plate; 413. Second connecting plate; 42. Roller; 421. Roller shaft; 422. Roller cylinder; 43. First guide groove; 44. Second guide groove. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In the description of this utility model, "multiple" means two or more.

[0026] like Figure 1 , Figure 6 as well as Figure 7 As shown, this utility model embodiment provides a film applicator 100, which is used to attach the protective film 201 in the protective film assembly 200 to the target object 300. The protective film assembly 200 also includes a positioning film 202 and a tear-off film 203, which are respectively attached to opposite sides of the protective film 201.

[0027] Among them, such as Figures 1 to 3 As shown, the film applicator 100 includes a base 1, a spring 2, and a positioning element 3; the base 1 has an installation area 11 on one side surface along a first direction, which is used to place the target object 300; the spring 2 and the positioning element 3 are both connected to the base 1 and are spaced apart on opposite sides of the installation area 11 along a second direction to position the positioning film 202; the second direction is perpendicular to the first direction; the spring 2 has a support surface 21, which is spaced apart from the base 1 along the first direction and is used to support the positioned positioning film 202; the spring 2 can be elastically bent toward the positioning element 3, so that when the positioned positioning film 202 is subjected to pressure toward the installation area 11, it can approach the installation area 11.

[0028] Among them, Figure 2 and Figure 3 In the example shown, the first direction is parallel to the Z-axis, and the second direction is parallel to the X-axis. Alternatively, the first direction can refer to the thickness direction of the base 1, and the second direction can refer to the length direction of the base 1.

[0029] In a practical application scenario, the first direction is parallel to the vertical direction, and the second direction is parallel to the horizontal direction.

[0030] In the prior art, the positioning hole 204 (i.e., the first positioning hole) at one end of the positioning film 202 is fitted onto the first positioning member 3, and the positioning hole 204 (i.e., the second positioning hole) at the other end of the positioning film 202 is fitted onto the second positioning member 3. The positioning film 202 is tensioned by the first positioning member 3 and the second positioning member 3, thereby achieving positioning of the positioning film 202. However, in actual operation, the positioning film 202 may slide (i.e., slide downward) along the side of the first positioning member 3 and the second positioning member 3 toward the mounting area 11, thereby contacting the target object 300 placed in the mounting area 11.

[0031] In this embodiment, in addition to positioning the positioning film 202, the spring 2 can also support the end of the positioning film 202 that is positioned by the spring 2 in the first direction using the support surface 21, so that the end of the positioning film 202 is kept at a distance from the mounting area 11. In this way, the protective film 201 on the positioning film 202 can be effectively prevented from contacting the target object 300 placed in the mounting area 11 before the positioning film 202 is pressed.

[0032] In addition, when pressure is applied to the positioning film 202 toward the mounting area 11, the spring 2 can be bent by pulling the positioning film 202, so that the positioning film 202 and the protective film 201 on the positioning film 202 can more easily approach the target object 300 in the mounting area 11, so that the protective film 201 can be smoothly attached to the target object 300 in the mounting area 11.

[0033] It should be understood that the support surface 21 and the mounting area 11 are located on the same side of the base 1 along the first direction.

[0034] The target object 300 can be an electronic product such as a mobile phone or tablet computer.

[0035] In addition, in the second direction, both opposite ends of the positioning film 202 protrude from the protective film 201. One end of the positioning film 202 is provided with a first positioning hole, and the other end of the positioning film 202 is provided with a second positioning hole. When the spring piece 2 and the positioning member 3 position the positioning film 202, the spring piece 2 passes through the first positioning hole, and the positioning member 3 passes through the second positioning hole. The spring piece 2 and the positioning member 3 can keep the positioning film 202 in a taut state.

[0036] When using the film applicator 100, the target object 300 can be placed in the installation area 11 first; then, the protective film assembly 200 is installed on the film applicator 100. At this time, the spring piece 2 passes through the first positioning hole, the positioning member 3 passes through the second positioning hole, and the tear-off film 203 is located between the protective film 201 and the base 1. (Refer to...) Figure 6 Figure A; then, peel off the tear film 203, refer to... Figure 6In Figure B, the protective film 203 has been removed. At this point, the support of the support surface 21 prevents the protective film 201 from contacting the target object 300 in the installation area 11 (in the prior art, the protective film 201 usually contacts the target object 300 in this step). Then, force is applied to the positioning film 202 from the side away from the protective film 201 to press the positioning film 202, so that the protective film 201 is close to the target object 300 and finally adheres to the target object 300. Then, the positioning film 202 is removed, thus completing the film application operation on the target object 300.

[0037] in addition, Figure 6 Figures C, D, and E show views of applying force to the positioning film 202 using the defoaming roller 4 to adhere the protective film to the target object 300. Figure 6 Figure C shows a view of the bubble-removing roller 4 immediately after it is assembled with the base 1. Figure 6 Figure D shows a view of the bubble-removing roller 4 when it moves towards the middle position towards the spring 2. Figure 6 Figure E shows a view of the bubble-removing roller 4 moving toward the spring 2 to its final position.

[0038] Furthermore, when the spring piece 2 bends and deforms towards the positioning member 3 under the tension of the positioning film 202, the axis around which its bending deformation occurs can be parallel to a third direction. Figure 2 In the directions shown, the third direction is parallel to the Y-axis, and the third direction can be the width direction of the base 1.

[0039] like Figure 2 and Figure 6 As shown in Figure A, in one embodiment, in a first direction, the base 1 has a bottom surface 12 and a bearing surface 13 disposed opposite to each other, and the mounting area 11 is located on the side where the bearing surface 13 is located; along the direction from the bottom surface 12 to the bearing surface 13, the spring piece 2 and the positioning member 3 both protrude from the bearing surface 13 in order to position the positioning film 202.

[0040] Along the first direction, the bottom surface 12, the bearing surface 13, and the supporting surface 21 are arranged at intervals.

[0041] In one embodiment, the base 1 is generally rectangular in shape.

[0042] like Figure 2 As shown, in one embodiment, the bearing surface 13 is provided with a mounting groove 14, and the mounting area 11 is at least a portion of the mounting groove 14. This makes it easier to position the target object 300.

[0043] When in use, the groove wall of the mounting groove 14 can limit the target object 300 to prevent the target object 300 from moving relative to the base 1 within the mounting groove 14.

[0044] The mounting slot 14 can be a rectangular slot or similar structure.

[0045] like Figure 2 As shown, in one embodiment, the side wall of the mounting groove 14 is provided with a force-applying groove 15, which communicates with the mounting groove 14 and extends to the bearing surface 13. The provision of the force-applying groove 15 does not affect the positioning of the target object 300 by the groove wall of the mounting groove 14. When applying the film, the operator can apply force to the target object 300 in the mounting groove 14 from the force-applying groove 15 so as to remove the target object 300 from the mounting groove 14.

[0046] When the mounting groove 14 is a rectangular groove, the force-applying groove 15 can be disposed on at least one side wall in the length direction (i.e., the second direction) of the mounting groove 14, and the dimension of the force-applying groove 15 in the third direction is smaller than the width of the side wall on which it is disposed. Of course, the force-applying groove 15 can also be disposed on at least one side wall in the width direction (i.e., the third direction) of the mounting groove 14, and the dimension of the force-applying groove 15 in the second direction is smaller than the length of the side wall on which it is disposed.

[0047] like Figure 2 As shown, in one embodiment, the positioning member 3 includes two positioning posts 31 spaced apart on the base 1 along a third direction, with the first direction, the second direction and the third direction being perpendicular to each other; the bearing surface 13 is provided with a relief groove 16, which is located on the side of the mounting area 11 away from the spring piece 2 and penetrates the base 1 along the direction from the spring piece 2 to the positioning post 31, and a part of the relief groove 16 is located between the two positioning posts 31.

[0048] When the positioning film 202 is positioned using the positioning member 3, the setting of the avoidance groove 16 can prevent the operator from colliding with the base 1, so as to facilitate the installation of the end of the positioning film 202 where the second positioning hole is located on the base 1.

[0049] In addition, both positioning posts 31 can be cylindrical structures. In this case, the second positioning hole can have two sub-holes, and after positioning the positioning film 202, one positioning post 31 is inserted into one sub-hole.

[0050] like Figure 2 As shown, in one embodiment, the base 1 is further provided with a guide groove 17, which penetrates the base 1 along a first direction; along a second direction, the guide groove 17 is located between the mounting area 11 and the positioning member 3, for allowing the tear-off film 203 on the positioning film 202 to pass through. Subsequently, force can be applied to the end of the tear-off film 203 extending from the guide groove 17 to remove the tear-off film 203 from the protective film 201.

[0051] The guide groove 17 can be a rectangular groove, and its length (i.e., its dimension in the third direction) can be set to match the width of the tear film 203. When tearing off the tear film 203, the guide groove 17 can limit the position of the tear film 203 in the third direction to avoid adverse effects on the relative position of the protective film 201 and the target object 300.

[0052] Of course, in other embodiments, the guide groove 17 may not be provided. In this case, the tear-off film 203 can pass between the two positioning posts 31. Moreover, when the tear-off film 203 is removed, the tear-off film 203 can also be moved out of the applicator 100 between the two positioning posts 31.

[0053] In one embodiment, the spring 2 is detachably connected to the base 1. This facilitates the transportation of the film applicator 100 and allows for easy replacement of the spring 2 if it is damaged, thereby reducing maintenance costs.

[0054] When the spring 2 is connected to the base 1, the first direction can be the length direction of the spring 2, the second direction can be the thickness direction of the spring 2, and the third direction can be the width direction of the spring 2.

[0055] like Figure 2 As shown, in one embodiment, the base 1 is provided with a slot 18, one end of the spring piece 2 is pluggably installed in the slot 18, and the other end of the spring piece 2 is located outside the slot 18 and is used to position and support the positioning film 202. This facilitates the installation and removal of the spring piece 2 on the base 1.

[0056] In addition, it should be understood that after the spring 2 is inserted into the slot 18, the support surface 21 is located outside the slot 18.

[0057] like Figure 2 As shown, in one embodiment, the slot 18 includes a first slot 181, a second slot 182, a third slot 183, and a fourth slot 184; the first slot 181 is used to install the spring piece 2 and connects the second slot 182, the third slot 183, and the fourth slot 184; along the second direction, the second slot 182 and the third slot 183 are both located between the first slot 181 and the mounting area 11, and the fourth slot 184 is located on the side of the first slot 181 away from the mounting area 11; along the third direction, the second slot 182 and the third slot 183 are spaced apart at both ends of the first slot 181, and the fourth slot 184 is located between the second slot 182 and the fourth slot 184; when the spring piece 2 is installed in the first slot 181, along the second direction, one side edge of the spring piece 2 is opposite to the second slot 182, the other side edge of the spring piece 2 is opposite to the third slot 183, and the middle part of the spring piece 2 is opposite to the fourth slot 184.

[0058] When the spring 2 is inserted into the slot 18, it is actually installed in the first slot 181.

[0059] When the spring piece 2 is bent and deformed towards the positioning member 3 by the tension of the positioning film 202, the middle part of the spring piece 2 will protrude to the side away from the positioning member 3, and its two sides will also be displaced towards the positioning member 3 due to deformation. At this time, the deformation of the spring piece 2 can be absorbed by the setting of the second groove 182, the third groove 183 and the fourth groove 184, so that the spring piece 2 can be bent and deformed towards the positioning member 3 more smoothly.

[0060] In addition, along the direction from the positioning member 3 to the spring piece 2, the fourth groove 184 extends through the base 1.

[0061] Furthermore, along the second direction, the width of the first groove 181 can be equal to, greater than or less than the thickness of the portion of the spring 2 inserted into the first groove 181; along the third direction, the length of the first groove 181 can be equal to, greater than or less than the length of the portion of the spring 2 inserted into the first groove 181.

[0062] In one embodiment, the first groove 181, the second groove 182, the third groove 183, and the fourth groove 184 can all be rectangular grooves.

[0063] In one embodiment, along a third direction, the two sides of the first groove 181 are the first side and the second side, the two sides of the second groove 182 are the third side and the fourth side, the two sides of the third groove 183 are the fifth side and the sixth side, and the two sides of the fourth groove 184 are the seventh side and the eighth side.

[0064] The dimension (i.e., its length) of the first groove 181 in the third direction is the distance between the first and second sides; the dimension (i.e., its length) of the second groove 182 in the third direction is the distance between the third and fourth sides; the dimension (i.e., its length) of the third groove 183 in the third direction is the distance between the fifth and sixth sides; and the dimension (i.e., its length) of the fourth groove 184 in the third direction is the distance between the seventh and eighth sides.

[0065] The first and third sides can lie in the same plane, the second and sixth sides can lie in the same plane, and the fourth and fifth sides are located between the third and sixth sides. Additionally, the seventh and eighth sides are located between the first and second sides.

[0066] In one embodiment, the spring 2 can be a metal sheet. Of course, the spring 2 can also be a plastic sheet or other structure that can be bent and deformed and can return to its original position after deformation. It should be noted that this application does not impose specific limitations on the structure, appearance, and material of the spring 2; as long as it has a bendable and spring-back function, it is within the protection scope of this application.

[0067] like Figure 3As shown, in one embodiment, along the first direction, the spring piece 2 includes a support portion 22, a positioning portion 23, and a limiting portion 24 connected in sequence; wherein, the end of the support portion 22 away from the positioning portion 23 is connected to the base 1; the end face of the support portion 22 near the positioning portion 23 is a support surface 21; the positioning portion 23 is adapted to fit a positioning film 202 to position the positioning film 202; the limiting portion 24 is used to prevent the positioning film 202 fitted onto the positioning portion 23 from detaching from the end of the positioning portion 23 away from the support portion 22. This arrangement can ensure the positioning effect of the positioning film 202 and ensure the film application quality on the target object 300.

[0068] The phrase "along the first direction, the spring piece 2 includes a support part 22, a positioning part 23 and a limiting part 24 connected in sequence" means that after the spring piece 2 is connected to the base 1, along the first direction, the spring piece 2 is divided into three sections, namely the support part 22, the positioning part 23 and the limiting part 24.

[0069] In addition, the support part 22, the positioning part 23 and the limiting part 24 are all sheet-like structures.

[0070] In one embodiment, along the width direction of the spring piece 2, the width of the support portion 22 is greater than the width of the positioning portion 23, and the width of the limiting portion 24 is greater than the width of the positioning portion 23. Furthermore, along the width direction of the spring piece 2, both sides of the support portion 22 protrude from the positioning portion 23, and both sides of the limiting portion 24 protrude from the positioning portion 23.

[0071] like Figure 3 As shown, in one embodiment, the spring piece 2 is provided with a window 25, which penetrates the spring piece 2 along the second direction; the support surface 21 is spaced apart from the window 25 and is located on the side of the window 25 away from the base 1. This arrangement is more conducive to the deformation of the spring piece 2.

[0072] "Window 25 penetrates the spring 2 along the second direction" means that after the spring 2 is connected to the base 1, window 25 penetrates the spring 2 along the second direction.

[0073] The window 25 can be a square hole, a round hole, or a hole of other shapes.

[0074] like Figure 3 As shown, in one embodiment, the spring 2 forms a closed-loop structure at the window 25, that is, the window 25 is surrounded by the spring 2. Of course, in other embodiments, the spring 2 forms an open-loop structure at the window 25.

[0075] In one embodiment, window 25 is actually disposed on support portion 22.

[0076] like Figure 3As shown, in one embodiment, along the first direction, the support portion 22 includes a plug-in portion 221 and a deformable portion 222 connected in sequence. The plug-in portion 221 can be inserted into the slot 18 (i.e., the plug-in portion 221 is installed in the slot 18), thereby connecting the spring piece 2 to the base 1. One end of the deformable portion 222 opposite to the plug-in portion 221 is connected to the positioning portion 23, and the support surface 21 is the surface of the deformable portion 222 opposite to the plug-in portion 221. When the positioning film 202 is pressed, causing the spring piece 2 to bend and deform, the area of ​​bending and deformation of the spring piece 2 is mainly located in the deformable portion 222.

[0077] Along the third direction, the insertion part 221 protrudes from both sides of the deformed part 222.

[0078] Along a third direction, the length of the slot 18 (i.e., the length of the first slot 181) can be equal to or greater than the width of the insertion part 221; however, the length of the slot 18 is less than the width of the deformable part 222. When the insertion part 221 is inserted into the slot 18, the deformable part 222 can abut against the base 1.

[0079] In one embodiment, when the window 25 is not provided, the insertion part 221, the deformation part 222, the positioning part 23, and the limiting part 24 can all be rectangular pieces (i.e., cuboid structures), and their thicknesses (i.e., their dimensions in the second direction) can be the same. During production, the spring piece 2 can be obtained by cutting a flat plate.

[0080] In addition, window 25 is provided on deformable part 222 so that deformable part 222 can be bent and deformed more easily.

[0081] like Figure 1 and Figure 4 As shown, in one embodiment, the applicator 100 further includes a defoaming roller 4, which is used to apply pressure to the positioning film 202 to be positioned, thereby pressing the protective film 201 onto the target object 300.

[0082] The defoaming roller 4 includes a bracket 41 and a roller 42. The roller 42 is mounted on the bracket 41 and can rotate relative to the bracket 41 around its own axis.

[0083] In use, the operator can hold the bracket 41 and press the roller 42 onto the positioning film 202 to apply pressure to the positioning film 202.

[0084] When the positioning film 202 is pressed, the axis of the roller 42 is parallel to the third direction.

[0085] like Figure 4 and Figure 5As shown, the bracket 41 includes a crossbeam 411, a first connecting plate 412, and a second connecting plate 413; the first connecting plate 412 and the second connecting plate 413 are both connected to the crossbeam 411 and are spaced apart along a third direction; moreover, the first connecting plate 412 and the second connecting plate 413 are located on the same side of the crossbeam 411 along the first direction.

[0086] One end of the roller 42 is connected to the first connecting plate 412 and can rotate relative to the first connecting plate 412 about its own axis; the other end of the roller 42 is connected to the second connecting plate 413 and can rotate relative to the second connecting plate 413 about its own axis. In addition, the roller 42 and the crossbeam 411 are spaced apart.

[0087] Along the direction from the crossbeam 411 to the first connecting plate 412, the first connecting plate 412 has a first protrusion protruding from the roller 42, and the second connecting plate 413 has a second protrusion protruding from the roller 42.

[0088] When the positioning film 202 is pressed by the roller 42, the operator can hold the crossbeam 411. Moreover, the first connecting plate 412 and the second connecting plate 413 (actually the first protrusion and the second protrusion) are located on both sides of the base 1. When the roller 42 is pushed to move in the second direction, the first protrusion and the second protrusion can guide the movement of the roller 42 in the second direction.

[0089] In addition, the first connecting plate 412 is provided with a first connecting hole on the side near the second connecting plate 413, and the second connecting plate 413 is provided with a second connecting hole on the side near the first connecting plate 412. One end of the roller 42 is provided in the first connecting hole to connect to the first connecting plate 412, and the other end of the roller 42 is provided in the second connecting hole to connect to the second connecting plate 413.

[0090] like Figure 5 As shown, in one embodiment, the first connecting plate 412 has a first guide groove 43 at the end away from the crossbeam 411 to guide the roller 42 to be installed into the first connecting hole. The first guide groove 43 can be a V-shaped groove, with the width of the V-shaped groove gradually decreasing along the direction close to the crossbeam 411. Alternatively, the first guide groove 43 can extend along the direction away from the second connecting plate 413 to the surface of the first connecting plate 412 opposite to the second connecting plate 413, in which case the first connecting plate 412 forms a V-shaped notch at the location of the first guide groove.

[0091] like Figure 5As shown, in one embodiment, the second connecting plate 413 has a second guide groove 44 at the end away from the crossbeam 411 to guide the roller 42 to be installed into the second connecting hole. The second guide groove 44 can be a V-shaped groove, with the width of the V-shaped groove gradually decreasing along the direction close to the crossbeam 411. Alternatively, the second guide groove 44 can extend along the direction away from the first connecting plate 412 to the surface of the second connecting plate 413 opposite to the first connecting plate 412, in which case the second connecting plate 413 forms a V-shaped notch at the guide groove.

[0092] like Figure 4 As shown, in one embodiment, the roller 42 includes a roller shaft 421 and a roller 422. The roller shaft 421 is connected to a first connecting plate 412 and a second connecting plate 413, and the roller 422 is sleeved on the roller shaft 421. The roller shaft 421 is rotatable relative to the first connecting plate 412 and the second connecting plate 413 about its own axis, and the axis of the roller shaft 421 is the axis of the roller 42. The roller 422 is fixed on the roller shaft 421, and the two are coaxial.

[0093] In use, roller 42 actually applies pressure to positioning film 202 through roller 422.

[0094] In addition, the outer diameter of roller 422 is larger than the diameter of roller shaft 421, and the inner diameter of roller 422 matches the diameter of roller shaft 421. Roller 422 and roller shaft 421 can be an interference fit.

[0095] Meanwhile, the axial length of the roller shaft 421 is greater than the axial length of the roller 422, and both ends of the roller shaft 421 protrude from the roller 422. At this time, the entire roller 42 is in a state where the diameter in the middle is large and the diameter at both ends is small.

[0096] Furthermore, when roller 42 is elastic, it mainly refers to the elasticity of roller 422 itself, such as roller 422 being a rubber part, silicone part, or sponge part. In this case, roller shaft 421 can be a rigid part, such as it can be a metal part or a hard plastic part.

[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A film applicator for attaching a protective film to a target object, wherein a positioning film and a peel-off film are respectively attached to opposite sides of the protective film, characterized in that, The film applicator includes a base, a spring, and a positioning component; The base has a mounting area on one side surface along the first direction, and the mounting area is used to place the target object; Both the spring and the positioning element are connected to the base and are spaced apart on opposite sides of the mounting area along the second direction to position the positioning film; the second direction is perpendicular to the first direction. The spring sheet has a support surface, which is spaced apart from the mounting area along the first direction and is used to support the positioning film being positioned. The spring can be elastically bent toward the positioning member, so that when the positioning film is subjected to pressure toward the mounting area, it can move closer to the mounting area.

2. The film applicator according to claim 1, characterized in that, Along the first direction, the spring sheet includes a support portion, a positioning portion, and a limiting portion connected in sequence; The end of the support portion away from the positioning portion is connected to the base; The end face of the support portion near the positioning portion is the support surface; The positioning part is adapted to fit the positioning film so as to position the positioning film; The limiting part is used to prevent the positioning film sleeved on the positioning part from detaching from the end of the positioning part away from the support part.

3. The film applicator according to claim 1, characterized in that, The spring sheet is provided with a window, and the window penetrates the spring sheet along the second direction; The support surface is spaced apart from the window and is located on the side of the window away from the base.

4. The film applicator according to claim 1, characterized in that, The spring is detachably connected to the base.

5. The film applicator according to claim 4, characterized in that, The base is provided with a slot, one end of the spring piece is pluggably installed in the slot, and the other end of the spring piece is located outside the slot and is used to position and support the positioning membrane.

6. The film applicator according to claim 5, characterized in that, The card slot includes a first slot, a second slot, a third slot, and a fourth slot; The first slot is used to install the spring piece and connects to the second slot, the third slot and the fourth slot; Along the second direction, the second groove and the third groove are both located between the first groove and the mounting area, and the fourth groove is located on the side of the first groove away from the mounting area; Along a third direction, the second groove and the third groove are spaced apart at both ends of the first groove, and the fourth groove is located between the second groove and the fourth groove; When the spring is installed in the first groove, along the second direction, one side edge of the spring is opposite to the second groove, the other side edge of the spring is opposite to the third groove, and the middle part of the spring is opposite to the fourth groove; The first direction, the second direction, and the third direction are perpendicular to each other.

7. The film applicator according to claim 1, characterized in that, The base is also provided with a guide groove, which penetrates the base along the first direction; Along the second direction, the guide groove is located between the mounting area and the positioning member, for allowing the tear film on the positioning film to pass through.

8. The film applicator according to claim 1, characterized in that, In the first direction, the base has a bottom surface and a bearing surface that are disposed opposite to each other, and the mounting area is located on the side where the bearing surface is located; Along the direction from the bottom surface to the bearing surface, both the spring and the positioning element protrude from the bearing surface to position the positioning film.

9. The film applicator according to claim 8, characterized in that, The bearing surface is provided with a mounting groove, and the mounting area is at least a portion of the mounting groove. The side wall of the mounting groove is provided with a force-applying groove, which is connected to the mounting groove and extends to the bearing surface.

10. The film applicator according to claim 8, characterized in that, The positioning element includes two positioning posts spaced apart on the base along a third direction, with the first direction, the second direction, and the third direction being perpendicular to each other; the bearing surface is provided with a clearance groove, which is located on the side of the mounting area away from the spring piece and extends through the base along the direction from the spring piece to the positioning post, and a portion of the clearance groove is located between the two positioning posts.

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