Film tearing and exhausting synchronizing device of automatic film sticking machine

Abstract

The utility model provides a film tearing and exhausting synchronizing device of an automatic film sticking machine, which comprises a machine body, a film tearing mechanism and a pushing and exhausting mechanism, a top plate of the machine body is provided with a working area and a positioning block, the working area can be used for positioning and fixing a product to be subjected to film sticking, and the positioning block is arranged on the outer side of the working area and can be used for positioning a film sticking material; the film tearing mechanism is arranged at the rear end of the machine body and can pull the second release film to be gradually separated from the protective film from front to back; the pushing and exhausting mechanism is arranged on the machine body in a front-back moving mode and can synchronously push and press the separated protective film to be attached to a product to be subjected to film attaching from front to back in the separation process of the second release film and the protective film of the film attaching material, and air below the attaching face of the protective film is exhausted. By the adoption of the film pasting device, automatic film pasting operation is achieved, bubbles and dust can be prevented from entering the film pasting device to a great extent, the requirements for reworking, film tearing and re-pasting are reduced, time is saved, and the rejection rate of protective films is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of electronic product film application equipment, specifically relating to an automatic film application machine film peeling and exhaust venting synchronization device. Background Technology

[0002] Currently, electronic devices are becoming increasingly common. These smart electronic devices typically have screens, which generally have touch functionality. Using the conductive properties of fingers, users touch buttons on the screen to make calls or access menus for information. To prevent scratches caused by frequent touching or external friction, screen protectors are often applied.

[0003] Existing screen protector application methods rely on manual positioning and application, which requires highly skilled operators, has low efficiency, and makes it difficult to guarantee the application effect. Often, improper application, air bubbles, or impurities lead to unusable screen protectors. Manual application requires first cleaning the screen, then peeling off the release liner, aligning the screen protector with the screen, and finally covering and applying it. During this series of steps, dust in the air can easily adhere to the screen or the screen protector, resulting in poor application. Furthermore, manual application requires gradually covering the screen with the screen along the axial direction, making the operation complex and technically demanding.

[0004] To address the shortcomings of manual screen protector application, various "screen protector application gadgets" have emerged on the market. These gadgets allow users to apply screen protectors themselves. Essentially, these gadgets are protective films with added application tools, enabling users to apply the screen protector independently. However, the application results of these gadgets remain unsatisfactory. The release liner must be completely removed before the protective film can be adhered to the screen, leaving the adhesive layer exposed for an extended period, making it prone to dust accumulation. Furthermore, the pressing and air-exploding process still requires manual intervention, resulting in low automation. Manual operation makes it difficult to ensure uniform and consistent pressing, easily leading to air bubbles and low application quality and efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an automatic film applicator with a film-tearing and air-venting synchronization device, which can automate the film applicator operation, achieve high film applicator accuracy, and greatly prevent the generation of air bubbles and the entry of dust, thereby improving the quality and efficiency of film applicator application.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An automatic film applicator with synchronized film peeling and venting includes a body, a film peeling mechanism, and a pushing and venting mechanism. The top plate of the body has a working area for positioning and fixing the product to be applicated, and a positioning block located outside the working area for positioning the film material. The positioning block matches a pre-set positioning hole on the first release film of the film material. The film peeling mechanism is located at the rear end of the body and can gradually separate the second release film and the protective film of the film material from front to back. The pushing and venting mechanism is movable on the body and can simultaneously push the separated protective film from front to back onto the product to be applicated during the separation of the second release film and the protective film, while also venting air from under the protective film.

[0008] As a preferred embodiment of this utility model, the film-tearing mechanism includes a traction roller and a first drive assembly. The traction roller is arranged along the width direction of the machine body, and its two ends are rotatably connected to the two side walls of the machine body. A take-up wheel is fixed on the traction roller, and the take-up wheel is provided with one-way hooks that can engage with the pre-set traction holes on the second release film of the film-applying material. There are two one-way hooks arranged at 180-degree intervals along the circumference of the take-up wheel. The first drive assembly is disposed in the machine body, and its output end is connected to the traction roller and can drive the traction roller to rotate in the forward or reverse direction.

[0009] Furthermore, the rear end of the machine body is provided with a receiving chamber that can accommodate the traction roller and the wound second release film, and the outside of the receiving chamber is provided with an inlet and outlet port for the second release film to enter and exit the receiving chamber.

[0010] Furthermore, the film-tearing mechanism includes a pressing assembly located below the center of the traction roller. Two take-up rollers are symmetrically arranged on the left and right sides of the pressing assembly. The pressing assembly includes a pressing wheel, a fixed seat, a lifting seat, and a compression spring. The fixed seat has an installation cavity, is fixed to the bottom of the receiving chamber, and its upper end communicates with the receiving chamber. The lifting seat is movably disposed within the installation cavity. The compression spring is fixed within the installation cavity, and its upper end abuts against the bottom of the lifting seat. The pressing wheel is rotatably connected to the lifting seat and can push against the receiving chamber under the elastic force of the compression spring, pressing the second release film that has been wound up.

[0011] As a preferred embodiment of this utility model, the film-tearing mechanism includes a traction roller, a biting roller, and a first drive assembly. Both the traction roller and the biting roller are arranged along the width direction of the machine body. The two ends of the traction roller are rotatably connected to the two side walls of the machine body, and a plurality of equidistant first biting wheels are fixedly mounted on the traction roller. The two ends of the biting roller are rotatably connected to the two side walls of the machine body, and a plurality of equidistant second biting wheels are fixedly mounted on the biting roller. The first biting wheels and the second biting wheels are staggered relative to each other. The outer circumference of the first biting wheel is provided with a plurality of radially protruding biting portions, which extend into the space between two adjacent second biting wheels. The first drive assembly is disposed within the machine body, and its output end is connected to the traction roller and can drive the traction roller to rotate forward.

[0012] Furthermore, the rear end of the machine body is provided with a receiving chamber that can accommodate the traction roller and the biting roller. The outer side of the receiving chamber is provided with an inlet for the second release film to enter the receiving chamber and an outlet for the second release film to be sent from the receiving chamber to the outside of the equipment.

[0013] As a preferred embodiment of the present invention, the first drive assembly includes a drive gear, a driven gear, and a first motor. The first motor is fixed on the machine body, and the output shaft of the first motor is fixedly connected to the drive gear. The driven gear is fixedly connected to the traction roller and meshes with the drive gear.

[0014] As a preferred embodiment of this utility model, the pushing and venting mechanism includes a gantry bracket, a pushing rubber roller, and a second drive assembly. The gantry bracket has a crossbeam and two columns respectively connected to both ends of the crossbeam. The crossbeam is suspended above the machine body. Both columns are fixed with guide protrusions. The side walls of the machine body have guide grooves extending along the length direction of the machine body. The guide protrusions slide in conjunction with the guide grooves. The pushing rubber roller is arranged along the width direction of the machine body. The pushing rubber roller is rotatably connected to the bottom of the crossbeam through a hinge support. The second drive assembly is disposed in the machine body. The output end of the second drive assembly is connected to the column and can drive the column to move back and forth along the length direction of the machine body.

[0015] As a preferred embodiment of this utility model, the second drive assembly includes a connecting plate, a slider, a guide rail, a lead screw and nut pair, and a second motor. The guide rail is fixed inside the machine body and is arranged along the length direction of the machine body. The slider is slidably connected to the guide rail. The second motor is fixed inside the machine body, and the output shaft of the second motor is fixedly connected through the lead screw of the lead screw and nut pair. The nut of the lead screw and nut pair is fixedly connected to the slider. The connecting plate is fixedly connected to the nut of the lead screw and nut pair, and both ends of the connecting plate extend from the two side walls of the machine body and are fixedly connected to the columns on both sides.

[0016] As a preferred embodiment of this utility model, the front and rear ends of the guide rail are respectively provided with a front limit switch and a rear limit switch for controlling the front and rear limit positions of the gantry bracket. The front limit switch and the rear limit switch are respectively electrically connected to the second motor. The connecting plate is fixed with switch contacts that can touch or sense the front limit switch and the rear limit switch.

[0017] As a preferred embodiment of this utility model, the two side walls of the machine body are provided with guide grooves extending along the length direction of the machine body, and the column is provided with guide protrusions that slide in cooperation with the guide grooves.

[0018] As a preferred embodiment of this utility model, the front end of the machine body is provided with a first control button for controlling the operation of the positioning device and a second control button for controlling the operation of the film tearing mechanism and the pushing and venting mechanism.

[0019] As a preferred embodiment of this utility model, the working area is provided with a recess for the protruding part on the back of the product to be coated to enter.

[0020] As a preferred embodiment of this utility model, the automatic film applicator's film-tearing and exhaust synchronization device further includes a protective shell and a protective cover. The protective shell surrounds the machine body and is fixedly connected to the machine body. The protective cover covers the protective shell, so that the film applicator operation on the machine body is within the space formed by the protective cover and the protective shell.

[0021] The automatic film applicator tearing and exhaust synchronizing device provided by this utility model has the following advantages compared with the prior art:

[0022] The automatic film applicator with synchronized film peeling and venting in this embodiment of the invention, through the coordinated operation of the film peeling mechanism and the pushing and venting mechanism, can simultaneously separate the release film (i.e., the second release film) and push it, allowing the contact surface between the protective film and the screen to gradually expand, and air to be naturally discharged from front to back, avoiding the formation of air bubbles trapped under the film. Furthermore, the adhesive surface of the protective film is only exposed at the moment the release film is peeled off, reducing the chance of dust adhesion, and the continuous action of synchronized pushing further compresses the time window for dust entry. Therefore, the automatic film applicator with synchronized film peeling and venting in this embodiment of the invention automates the film applicator operation, greatly preventing the generation of air bubbles and the entry of dust, reducing the need for rework and reapplying the film, saving time and reducing the scrap rate of the protective film. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0024] Figure 1 This is an isometric side view of the automatic film applicator tearing and exhaust synchronizing device provided in this embodiment of the utility model;

[0025] Figure 2 This is a front view of the automatic film applicator when the film-applying material is placed on the film-tearing and exhaust synchronization device.

[0026] Figure 3 It is at Figure 2 A cross-sectional view along direction AA in the structure shown;

[0027] Figure 4 This is an isometric side view of the film-tearing mechanism and the pushing and venting mechanism;

[0028] Figure 5 This is a schematic diagram of the film-tearing mechanism;

[0029] Figure 6 This is a schematic diagram of another embodiment of the film-tearing mechanism;

[0030] Figure 7 This is one of the structural schematic diagrams of the push-to-exhaust mechanism;

[0031] Figure 8 This is the second schematic diagram of the push-to-exhaust mechanism;

[0032] Figure 9 This is an isometric side view of the automatic film applicator's film-tearing and exhaust synchronization device when it is equipped with a protective housing and cover.

[0033] Figure 10 This is an isometric side view of the film material;

[0034] Figure 11 This is a front view of the film material;

[0035] Figure 12 It is at Figure 11 A magnified view of region B in the structure shown.

[0036] Marked in the image:

[0037] Machine body 100; working area 101; positioning block 102; receiving chamber 103; guide groove 104; recess 105; control button 106; inlet / outlet 107; boss 108; positioning recess 109; protruding post 110;

[0038] Film tearing mechanism 200; traction roller 201; first drive assembly 202; take-up roller 203; one-way gear 204; drive gear 205; driven gear 206; first motor 207; pressing assembly 208; pressing wheel 209; fixed seat 210; lifting seat 211; compression spring 212; mounting cavity 213; biting roller 214; first biting wheel 215; second biting wheel 216; biting part 217;

[0039] Push-out exhaust mechanism 300; gantry bracket 301; push-out rubber roller 302; second drive assembly 303; crossbeam 304; column 305; hinge support 306; UV lamp 307; connecting plate 308; slider 309; guide rail 310; lead screw and nut pair 311; second motor 312; front limit switch 313; rear limit switch 314; switch contact 315; guide protrusion 316;

[0040] Protective housing 400;

[0041] Protective cover 500;

[0042] Film material 600; first release film 601; protective film 602; second release film 603; positioning hole 604; traction hole 605. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying 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.

[0045] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0047] like Figures 10 to 12 As shown, the automatic film applicator's film-peeling and venting synchronization device is a device that adheres the protective film on the film applicator material 600 to the screen of an electronic product. The existing film applicator material 600 is usually composed of multiple layers of materials, mainly including a first release film 601, a protective film 602, and a second release film 603. The protective film 602 is the protective structure that actually needs to be adhered to the screen of the electronic product. The first release film 601 is applied to the first side of the protective film 602, providing basic scratch-proof, dust-proof, and fingerprint-proof protection for the protective film 602. The second release film 603 is applied to the second side of the protective film 602 (i.e., the adhesive layer for bonding the protective film 602 to the screen), protecting the adhesive layer of the film during the application process and preventing the adhesive layer from being contaminated. To be compatible with the automatic film applicator tearing and exhaust synchronization device provided in this utility model embodiment, the first release film 601 is provided with positioning holes 604, a total of 4 positioning holes 604 are provided and arranged in front, back and left and right, and the second release film 603 is provided with traction holes 605, a total of 2 traction holes 605 are provided and are arranged at the tearing force part of the second release film 603.

[0048] Please refer to the following: Figures 1 to 9 The automatic film applicator tearing and exhaust synchronizing device provided in the embodiments of this utility model will now be described.

[0049] like Figures 1 to 9As shown, the automatic film-applying machine film-tearing and venting synchronization device of this utility model embodiment includes a machine body 100, a film-tearing mechanism 200, and a pushing and venting mechanism 300; the top plate of the machine body 100 is provided with a working area 101 for positioning and fixing the product to be film-applied, and a positioning block 102 disposed outside the working area 101 for positioning the film-applying material 600, the positioning block 102 matching the positioning hole 604 preset on the first release film 601 of the film-applying material 600; the film-tearing mechanism 200 is provided with At the rear end of the machine body 100, the second release film 603 of the film-applying material 600 and the protective film 602 of the film-applying material 600 can be gradually separated from front to back; the pushing and venting mechanism 300 is movably mounted on the machine body 100, and can simultaneously push and press the separated protective film 602 onto the product to be filmed during the separation process of the second release film 603 of the film-applying material 600 and the protective film 602 of the film-applying material 600, and expel the air under the protective film 602.

[0050] According to the automatic film applicator tearing and venting synchronization device of this utility model embodiment, through the coordinated operation of the film tearing mechanism 200 and the pushing and venting mechanism 300, it can achieve the operation of separating the release film (i.e., the second release film 603) while pushing, so that the contact surface between the protective film 602 and the screen gradually expands, and the air is naturally discharged from front to back, avoiding the formation of air bubbles trapped under the film; and the adhesive surface of the protective film 602 is only exposed at the moment of peeling off the release film, reducing the chance of dust adhesion, and the continuous action of synchronous pushing further compresses the time window for dust to enter; it can be seen that the automatic film applicator tearing and venting synchronization device of this utility model embodiment realizes the automation of the film applicator operation, which can greatly prevent the generation of air bubbles and the entry of dust, reduce the need for rework and reapplying, save time and reduce the scrap rate of the protective film.

[0051] For example, such as Figure 4 and Figure 5As shown, the film-tearing mechanism 200 includes a traction roller 201 and a first drive assembly 202. The traction roller 201 is arranged along the width direction of the machine body 100. Both ends of the traction roller 201 are rotatably connected to the two side walls of the machine body 100, respectively. A take-up roller 203 is fixedly mounted on the traction roller 201. The take-up roller 203 is provided with one-way hook teeth 204 that can engage with the pre-set traction holes 605 on the second release film 603 of the film-applying material 600. There are two one-way hook teeth 204, which are arranged 180 degrees apart along the circumference of the take-up roller 203, so that one of the one-way hook teeth 204 can smoothly hook the second release film 603 when rotating in the forward direction, and can disengage from the second release film 603 when rotating in the reverse direction. The first drive assembly 202 is disposed inside the machine body 100. The output end of the first drive assembly 202 is connected to the traction roller 201 and can drive the traction roller 201 to rotate in the forward or reverse direction. When the first drive assembly 202 drives the traction roller 201 to rotate forward, the take-up roller 203 can wind up the second release film 603, thereby tearing the second release film 603 off the film material 600. If it is necessary to release the wound second release film 603, the first drive assembly 202 can drive the traction roller 201 to rotate in the reverse direction. Thus, the film-tearing mechanism 200, under the control of the first drive assembly 202, allows the traction roller 201 to rotate automatically in either the forward or reverse direction, realizing the automatic tearing and release of the release film without manual operation, greatly improving the film application efficiency. The unidirectional hook tooth 204 cooperates with the traction hole 605 on the second release film 603 to ensure that the release film can be accurately hooked and smoothly torn off. Furthermore, the automated film-tearing process reduces human error and avoids damage or unevenness of the film material 600 that may be caused by manual tearing, thereby improving the overall quality of film application.

[0052] Furthermore, the rear end of the machine body 100 is provided with a receiving chamber 103 that can accommodate the traction roller 201 and the wound second release film 603, thereby providing a dedicated space to store and protect the wound second release film 603, making the overall layout of the laminating machine neater and preventing the release film from being scattered and piled up outside the machine body 100. In addition, the outer side of the receiving chamber 103 is provided with an inlet / outlet port 107 for the second release film 603 to enter and exit the receiving chamber 103.

[0053] Furthermore, such as Figure 5As shown, the film-tearing mechanism 200 includes a pressing component 208, which is disposed below the traction roller 201 and can press the wound second release film 603 to ensure the stability and reliability of the release film during the winding process. Specifically, the pressing component 208 includes a pressing wheel 209, a fixed seat 210, a lifting seat 211, and a compression spring 212. The fixed seat 210 has an mounting cavity 213, which is fixed to the bottom of the receiving chamber 103, and the upper end of its mounting cavity 213 communicates with the receiving chamber 103. The lifting seat 211 is movably disposed within the mounting cavity 213. The compression spring 212 is fixed within the mounting cavity 213, and its upper end abuts against the bottom of the lifting seat 211. The pressing wheel 209 is rotatably connected to the lifting seat 211 and can be pushed into the receiving chamber 103 under the elastic force of the compression spring 212. Therefore, when the traction roller 201 begins to wind up the second release film 603, the pressure roller 209 can be pushed into the receiving chamber 103 under the elastic force of the compression spring 212 and tightly press the wound release film to prevent loosening or slippage during the winding process, ensuring the neatness and stability of the winding; secondly, the rotation design of the pressure roller 209 reduces the friction between it and the release film, ensuring that the release film can be wound smoothly; furthermore, through the elastic adjustment of the compression spring 212, the pressure assembly 208 can adapt to release films of different thicknesses, and has strong versatility.

[0054] Furthermore, such as Figure 5 As shown, the pressing assembly 208 is located below the middle of the traction roller 201, and the take-up roller 203 is provided in two symmetrical arrangements on the left and right sides of the pressing assembly 208. This symmetrical layout can ensure that the second release film 603 is subjected to uniform force when being pulled and wound up, avoid the skew problem caused by unilateral traction, and improve the stability of film tearing and winding.

[0055] In other alternative embodiments, such as Figure 6As shown, the film-tearing device can also achieve the dual functions of stable traction separation and synchronous delivery of the second release film 603 using a mechanical interlocking method. Specifically, the film-tearing mechanism 200 includes a traction roller 201, an interlocking roller 214, and a first drive assembly 202. The traction roller 201 and the interlocking roller 214 are both arranged along the width direction of the machine body 100. The two ends of the traction roller 201 are rotatably connected to the two side walls of the machine body 100, and a plurality of first interlocking wheels 215 are fixedly arranged at equal intervals on the traction roller 201. The two ends of the interlocking roller 214 are rotatably connected to the two side walls of the machine body 100, and a plurality of second interlocking wheels 216 are fixedly arranged at equal intervals on the interlocking roller 214. The first interlocking wheels 215 and the second interlocking wheels 216 are staggered relative to each other. The outer periphery of 215 is provided with multiple radially protruding biting portions 217, which are designed like gear teeth to provide gripping force on the film; the biting portions 217 extend into the space between two adjacent second biting rollers 216 to ensure that the film is alternately clamped and released when passing through, preventing slippage; the first drive assembly 202 is disposed in the machine body 100, and the output end of the first drive assembly 202 is connected to the traction roller 201 and can drive the traction roller 201 to rotate in the forward direction; the rear end of the machine body 100 is provided with a receiving chamber 103 that can accommodate the traction roller 201 and the biting roller 214, and the outer side of the receiving chamber 103 is provided with an inlet for the second release film 603 to enter the receiving chamber 103 and an outlet for the second release film 603 to be sent from the receiving chamber 103 to the outside of the equipment. Thus, when the first drive assembly 202 drives the traction roller 201 to rotate in the forward direction, the biting part 217 periodically inserts into the gap of the biting roller 214, forming a "gear-tooth" engagement. This design continuously clamps the second release film 603 during rotation and pulls the separated second release film 603 from the feed port into the receiving chamber 103. At the same time, the separated second release film 603 is continuously sent out of the equipment from the discharge port through intermittent release.

[0056] For example, the first drive assembly 202 includes a drive gear 205, a driven gear 206 and a first motor 207. The first motor 207 is fixed on the body 100. The output shaft of the first motor 207 is fixedly connected to the drive gear 205. The driven gear 206 is fixedly connected to the traction roller 201 and meshes with the drive gear 205.

[0057] For example, such as Figure 4 , Figure 7 and Figure 8As shown, the pushing and venting mechanism 300 includes a gantry support 301, a pushing rubber roller 302, and a second drive assembly 303. The gantry support 301 is provided with a crossbeam 304 and two columns 305 respectively connected to both ends of the crossbeam 304. The crossbeam 304 is suspended above the machine body 100. Guide protrusions 316 are fixedly provided on both columns 305. Guide grooves 104 extending along the length of the machine body 100 are provided on both side walls of the machine body 100. The guide protrusions 316 slide in cooperation with the guide grooves 104. The pushing rubber roller 302 is arranged along the width of the machine body 100. The pressing roller 302 is rotatably connected to the bottom of the crossbeam 304 via a hinge support 306 to ensure that the pressing roller 302 can evenly press the protective film 602 onto the surface of the product with the film. The second drive assembly 303 is disposed inside the machine body 100. The output end of the second drive assembly 303 is connected to the column 305 and can drive the column 305 to move back and forth along the length of the machine body 100, thereby driving the pressing roller 302 to perform a pressing operation on the product surface, evenly pressing the protective film 602 onto the product surface, and at the same time expelling the air between the protective film 602 and the product to avoid the generation of air bubbles.

[0058] Furthermore, such as Figure 8 As shown, a UV lamp 307 is provided at the bottom of the crossbeam 304, and the UV lamp 307 is distributed on the front and rear sides of the push roller 302. Therefore, the irradiation by the UV lamp 307 can effectively kill microorganisms on the film surface and the screen surface, ensuring the cleanliness and hygiene of the film application process.

[0059] In this embodiment, the second drive assembly 303 includes a connecting plate 308, a slider 309, a guide rail 310, a lead screw and nut assembly 311, and a second motor 312. The guide rail 310 is fixed inside the machine body 100 and is arranged along the length of the machine body 100. The slider 309 is slidably connected to the guide rail 310. The second motor 312 is fixed inside the machine body 100, and the output shaft of the second motor 312 is fixedly connected through the lead screw of the lead screw and nut assembly 311. The nut of the lead screw and nut assembly 311 is fixedly connected to the slider 309. The connecting plate 308 is fixedly connected to the nut of the lead screw and nut assembly 311. Both ends of the connecting plate 308 extend from the two side walls of the machine body 100 and are fixedly connected to the columns 305 on both sides. After the second motor 312 starts, the rotation of its output shaft is converted into linear motion of the slider 309 and the connecting plate 308 through the lead screw and nut pair 311. Under the guidance of the slider 309 and the guide rail 310, the linear pushing force of the lead screw and nut pair 311 is transmitted to the gantry bracket 301 through the connecting plate 308. The movement of the gantry bracket 301 drives the pressing roller 302 to move back and forth along the length of the machine body 100, completing the pressing operation. Thus, the second drive assembly 303, through the precise transmission of the second motor 312 and the lead screw and nut pair 311, can achieve precise movement of the pressing roller 302, ensuring the uniformity and consistency of the film application process. The sliding cooperation between the guide rail 310 and the slider 309 ensures the smoothness and linearity of the movement process, avoiding shaking or deviation, and improving the film application quality. In addition, all components of the second drive assembly 303 are installed inside the machine body 100, resulting in high space utilization, a compact overall structure, and minimal space occupation.

[0060] Furthermore, such as Figure 7 As shown, the guide rail 310 is provided with a front limit switch 313 and a rear limit switch 314 at its front and rear ends, respectively, for controlling the front and rear limit positions of the gantry bracket 301. The front limit switch 313 and the rear limit switch 314 are electrically connected to the second motor 312. The connecting plate 308 is fixed with switch contacts 315 that can touch or sense the front limit switch 313 and the rear limit switch 314. In this embodiment, the front limit switch 313 and the rear limit switch 314 can be contact limit switches or non-contact limit switches. Thus, by setting the front limit switch 313 and the rear limit switch 314, the automatic control of the second motor 312 is realized, so that the movement of the pressing roller 302 does not require manual intervention, improving the film application efficiency and consistency.

[0061] Furthermore, such as Figure 1As shown, the two side walls of the body 100 are provided with guide grooves 104 extending along the length of the body 100, and the column 305 is provided with guide protrusions 316 that slide in conjunction with the guide grooves 104. Thus, through this design of the guide grooves 104 and guide protrusions 316, the column 305 can maintain precise guidance and stability during movement, further improving the reliability of the equipment and the film application quality.

[0062] For example, such as Figure 1 As shown, the working area 101 is provided with a recess 105 for the protruding part on the back of the product to be covered, so as to better adapt to the shape of the product to be covered, so that the screen of the product to be covered remains horizontal during the application of the film, ensuring the stability and accuracy of the application process.

[0063] For example, the front side of the body 100 is provided with a boss 108, which protrudes upward from the top plate of the body 100. The side of the boss 108 near the working area 101 is provided with a positioning concave surface 109 for supporting the front end of the first release film 601. The rear side of the body 100 is provided with two protruding pillars 110 arranged symmetrically from left to right. The protruding pillars 110 protrude upward from the top plate of the body 100 and are used to support the rear end of the first release film 601. The upper end surface of the protruding pillars 110 is higher than the positioning concave surface 109, so that the film material 600 gradually tilts upward from front to back. Therefore, the positioning concave surface 109 and the protruding post 110 can support the film material to be suspended directly above the product to be filmed, ensuring that a certain amount of tearing space is reserved between the film material 300 and the product to be filmed. At the same time, the film material, which is inclined upward from front to back, can better cooperate with the automatic tearing and air venting operation. If the film material is parallel to the screen of the product to be filmed, the downward pushing force of the push roller 302 during film application will cause the film material to release air prematurely, affecting the film application quality. Furthermore, in order to ensure that the film material 600 can be accurately positioned in the center of the working area 101, four positioning blocks 102 are provided, two of which are symmetrically fixed to the positioning concave surface 109, and the other two are respectively fixed to the upper end surface of the protruding post 110.

[0064] It is understood that when applying the film-peeling and exhaust synchronization device of the film-applying machine according to the present utility model embodiment to apply film to the product to be applied, it includes the following steps:

[0065] Step 1: Position and secure the product to be applied:

[0066] In this embodiment, the product to be coated can be positioned and fixed in the work area 101 by means of edge positioning, center positioning, clamp fixing, etc.

[0067] Step 2: Position and fix the film material 600:

[0068] First, the positioning is matched and positioned by the positioning hole 604 on the first release film 601 of the film material 600 and the positioning block 102 located on the outside of the working area 101.

[0069] Then the second release film 603 of the film material 600 is connected to the film-tearing mechanism 200; in this embodiment, the second release film 603 of the film material 600 is connected to the winding wheel 203 on the film-tearing mechanism 200 through the pre-set traction hole 605 on the second release film 603; in other optional embodiments, the second release film 603 of the film material 600 can also be clamped by the traction roller 201 and the biting roller 214 on the film-tearing mechanism 200.

[0070] Step 3: Peel, press, and vent air from the film material 600.

[0071] Press the control button 106 to enter the film peeling and film application program, start the film peeling mechanism 200, and the first motor 207 works. The second release film 603 of the film application material 600 is pulled by the traction roller 201 to gradually separate from the protective film 602 of the film application material 600 from front to back. The separated second release film 603 is then wound up and temporarily stored. After the film peeling mechanism 200 (i.e., the first motor 207) has rotated a set number of times, the push-and-vent mechanism 300 is started. The second motor 312 works and drives the push-and-press roller 302 on the gantry bracket 301 to move synchronously from front to back. The pushed-and-pressed protective film 602 is then adhered to the product to be filmed, while the air under the protective film 602 is expelled.

[0072] The stroke of the push-to-exhaust mechanism 300 (i.e., the second motor 312) is controlled by the front limit switch 313 and the rear limit switch 314. When the push-to-exhaust mechanism 300 (specifically, the switch contact 315 fixed on the connecting plate 308) touches the rear limit switch 314, the push-to-exhaust mechanism 300 performs a return stroke (i.e., the second motor 312 starts the reverse mode). When the push-to-exhaust mechanism 300 (specifically, the switch contact 315 fixed on the connecting plate 308) touches the front limit switch 313, the push-to-exhaust mechanism 300 (i.e., the second motor 312) stops.

[0073] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An automatic film applicator with synchronized film peeling and exhaust, characterized in that, include: The machine body has a top plate with a working area for positioning and fixing the product to be filmed, and a positioning block located outside the working area for positioning the film material. The positioning block matches the positioning hole preset on the first release film of the film material. A film-peeling mechanism is located at the rear end of the machine body and is capable of gradually separating the second release film of the film-applying material from the protective film of the film-applying material from front to back. The push-and-vent mechanism is movable on the machine body and can push the separated protective film onto the product to be laminated from front to back during the separation process of the second release film of the laminating material and the protective film of the laminating material, and expel the air under the protective film.

2. The automatic film applicator tearing and exhaust synchronization device as described in claim 1, characterized in that, The film-tearing mechanism includes a traction roller and a first drive assembly. The traction roller is arranged along the width direction of the machine body, and its two ends are rotatably connected to the two side walls of the machine body. A take-up wheel is fixed on the traction roller, and the take-up wheel is provided with one-way hooks that can engage with the pre-set traction holes on the second release film of the film-applying material. There are two one-way hooks arranged at 180-degree intervals along the circumference of the take-up wheel. The first drive assembly is disposed in the machine body, and its output end is connected to the traction roller and can drive the traction roller to rotate in the forward or reverse direction.

3. The automatic film applicator tearing and exhaust synchronization device as described in claim 2, characterized in that, The rear end of the machine body is provided with a receiving chamber that can accommodate the traction roller and the second release film being wound up, and the outside of the receiving chamber is provided with an inlet and outlet port for the second release film to enter and exit the receiving chamber.

4. The automatic film applicator tearing and exhaust synchronization device as described in claim 3, characterized in that, The film-tearing mechanism includes a pressing assembly located below the center of the traction roller. Two take-up rollers are symmetrically arranged on the left and right sides of the pressing assembly. The pressing assembly includes a pressing roller, a fixed seat, a lifting seat, and a compression spring. The fixed seat has a mounting cavity, which is fixed to the bottom of the receiving chamber, and the upper end of the mounting cavity communicates with the receiving chamber. The lifting seat is movably disposed within the mounting cavity. The compression spring is fixed within the mounting cavity, and its upper end abuts against the bottom of the lifting seat. The pressing roller is rotatably connected to the lifting seat and can push against the receiving chamber under the elastic force of the compression spring, pressing the second release film that has been wound up.

5. The automatic film applicator tearing and exhaust synchronization device as described in claim 1, characterized in that, The film-tearing mechanism includes a traction roller, a biting roller, and a first drive assembly. Both the traction roller and the biting roller are arranged along the width direction of the machine body. The two ends of the traction roller are rotatably connected to the two side walls of the machine body, and a plurality of first biting wheels are fixedly arranged at equal intervals on the traction roller. The two ends of the biting roller are rotatably connected to the two side walls of the machine body, and a plurality of second biting wheels are fixedly arranged at equal intervals on the biting roller. The first biting wheels and the second biting wheels are staggered. The outer circumference of the first biting wheel is provided with a plurality of radially protruding biting portions, which extend into the space between two adjacent second biting wheels. The first drive assembly is disposed in the machine body, and the output end of the first drive assembly is connected to the traction roller and can drive the traction roller to rotate in the forward direction.

6. The automatic film applicator tearing and exhaust synchronizing device as described in claim 5, characterized in that, The rear end of the machine body is provided with a receiving chamber that can accommodate the traction roller and the biting roller. The outer side of the receiving chamber is provided with an inlet for the second release film to enter the receiving chamber and an outlet for the second release film to be sent from the receiving chamber to the outside of the equipment.

7. The automatic film applicator tearing and exhaust synchronization device as described in claim 2 or 5, characterized in that, The first drive assembly includes a drive gear, a driven gear, and a first motor. The first motor is fixed to the machine body, and the output shaft of the first motor is fixedly connected to the drive gear. The driven gear is fixedly connected to the traction roller and meshes with the drive gear.

8. The automatic film applicator tearing and exhaust synchronization device as described in claim 1, characterized in that, The pushing and venting mechanism includes a gantry support, a pushing roller, and a second drive assembly. The gantry support has a crossbeam and two columns respectively connected to both ends of the crossbeam. The crossbeam is suspended above the machine body. Guide protrusions are fixed on both columns. Guide grooves extending along the length of the machine body are provided on both side walls of the machine body. The guide protrusions slide in conjunction with the guide grooves. The pushing roller is arranged along the width of the machine body and is rotatably connected to the bottom of the crossbeam through a hinge support. The second drive assembly is disposed inside the machine body. The output end of the second drive assembly is connected to the column and can drive the column to move back and forth along the length of the machine body.

9. The automatic film applicator tearing and exhaust synchronization device as described in claim 8, characterized in that, The second drive assembly includes a connecting plate, a slider, a guide rail, a lead screw and nut assembly, and a second motor. The guide rail is fixed inside the machine body and is arranged along the length of the machine body. The slider is slidably connected to the guide rail. The second motor is fixed inside the machine body, and the output shaft of the second motor is fixedly connected through the lead screw of the lead screw and nut assembly. The nut of the lead screw and nut assembly is fixedly connected to the slider. The connecting plate is fixedly connected to the nut of the lead screw and nut assembly, and both ends of the connecting plate extend from the two side walls of the machine body and are fixedly connected to the columns on both sides.

10. The automatic film applicator tearing and exhaust synchronization device as described in claim 9, characterized in that, The guide rail is provided with a front limit switch and a rear limit switch at its front and rear ends, respectively, for controlling the front and rear limit positions of the gantry bracket. The front limit switch and the rear limit switch are electrically connected to the second motor. The connecting plate is fixed with switch contacts that can touch or sense the front limit switch and the rear limit switch.

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