Silica gel protective film convenient to slit and use

Abstract

The utility model discloses a silica gel protective film convenient for slitting use, which comprises a silica gel protective film main body, a winding drum, a loading frame, a first cutting guide frame, a second cutting guide frame, a third cutting guide frame, a cutting mechanism and a bearing plate, and the loading frame and the first cutting guide frame are both fixedly connected to the top of the bearing plate; the first cutting guide frame is arranged on one side of the loading frame, the second cutting guide frame is arranged on the top of the first cutting guide frame in a sliding mode, and the third cutting guide frame is arranged on the top of the second cutting guide frame in a sliding mode. By designing the sliding structures of the first cutting guide frame, the second cutting guide frame and the third cutting guide frame and using the cutting mechanism in a matched mode, a user can easily adjust the cutting position and direction according to actual needs, due to the design, the cutting operation is simplified, the cutting efficiency and precision are greatly improved, and the cutting quality is improved. Errors and damage possibly occurring when an external tool is used for cutting are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective film, specifically relates to a silica gel protective film convenient to divide and cut. BACKGROUND

[0002] The silica gel protective film is made of plastic film or aluminum-plastic composite material as base material, coated with low-adhesion pressure-sensitive adhesive on one side, and then cut into rolls. It usually has high-precision extrusion coating, high cleanliness, no white spots, white mist, sand holes, no stringing, no scratches, and other characteristics, and also has low adhesion, high adsorption, automatic bubble removal, high temperature resistance, good chemical solvent resistance, easy shear punching, and no residual glue after tearing, etc. The application field of silica gel protective film is very wide, covering mobile phones, digital products, electronic displays, automotive applications, home appliances, glass manufacturing, printing, medical treatment and other industries.

[0003] The silica gel protective film disclosed in the patent with publication number CN219839653U has a heat dissipation protective layer, which helps to dissipate heat and reduce heat accumulation on both sides of the silica gel protective film, improving its high-temperature resistance.

[0004] Although the silica gel protective film with high-temperature resistance significantly improves its high-temperature resistance through the innovative design of the heat dissipation protective layer, it still has some shortcomings in some aspects. For example, the silica gel protective film with high-temperature resistance does not have a corresponding cutting assembly, which means that users cannot directly cut it accurately when using it. In actual application, users may need to cut the protective film according to the size or shape of the electronic screen, and the lack of a cutting assembly will make this operation cumbersome and inaccurate. Users may need to use external tools for cutting, which not only increases the complexity of the operation, but also may damage the protective film or affect its protective effect due to improper cutting.

[0005] Therefore, it is necessary to invent a silica gel protective film that is easy to cut and use to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a silica gel protective film that is easy to cut and use to solve the problems in the above-mentioned technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of silica gel protective film convenient to slit uses, including silica gel protective film main body, reel, loading frame, no. 1 cutting guide frame, no. 2 cutting guide frame, no. 3 cutting guide frame, cutting mechanism and bearing plate, the loading frame and no. 1 cutting guide frame are all fixedly connected on the top of bearing plate, no. 1 cutting guide frame is arranged in loading frame side, no. 2 cutting guide frame is slidably arranged in the top of no. 1 cutting guide frame, no. 3 cutting guide frame is slidably arranged in the top of no. 2 cutting guide frame, cutting mechanism is arranged in the middle of no. 3 cutting guide frame,

[0008] The both ends of the no. 2 cutting guide frame respectively overhang on the both sides of the no. 1 cutting guide frame, one end of the no. 2 cutting guide frame is fixedly connected with a no. 1 limiting sliding block, a no. 1 limiting sliding slot is formed in one side of the no. 1 cutting guide frame, the no. 1 limiting sliding block is slidably connected in the no. 1 limiting sliding slot, the other end of the no. 2 cutting guide frame is threadedly connected with a no. 1 limiting bolt, one end of the no. 1 limiting bolt close to the no. 1 cutting guide frame is fixedly connected with a no. 1 limiting abutting plate, and the no. 1 limiting abutting plate is tightly abutted against the surface of the no. 1 cutting guide frame.

[0009] The both ends of the no. 3 cutting guide frame respectively overhang on the both sides of the no. 2 cutting guide frame, one end of the no. 3 cutting guide frame is fixedly connected with a no. 2 limiting sliding block, a no. 2 limiting sliding slot is formed in one side of the no. 2 cutting guide frame, the no. 2 limiting sliding block is slidably connected in the no. 2 limiting sliding slot, the other end of the no. 3 cutting guide frame is threadedly connected with a no. 2 limiting bolt, one end of the no. 2 limiting bolt close to the no. 2 cutting guide frame is fixedly connected with a no. 2 limiting abutting plate, and the no. 2 limiting abutting plate is tightly abutted against the surface of the no. 2 cutting guide frame.

[0010] The cutting mechanism comprises a main shaft, a moving sliding slot is formed in the middle of the top of the no. 2 cutting guide frame, a through hole is formed in the middle of the top of the no. 3 cutting guide frame, the main shaft bottom end penetrates through the through hole and the moving sliding slot and extends below the no. 2 cutting guide frame, a fixing frame is threadedly connected with the main shaft bottom end, a circular cutting knife is rotatably connected in the middle of the bottom of the fixing frame, the main shaft top end extends above the no. 3 cutting guide frame and is fixedly connected with a handle, a reset spring is movably sleeved on the outer side of the main shaft, one end of the reset spring is abutted against the top of the no. 3 cutting guide frame, and the other end of the reset spring is abutted against the bottom of the handle.

[0011] Through the combination of multi-stage cutting guide frame and cutting mechanism, the precise slitting of silica gel protective film is realized, and the flexibility and accuracy of slitting are enhanced, so that users can take silica gel protective film according to actual needs.

[0012] Preferably, a No. 3 limiting sliding slot is arranged on each side of the through hole, a No. 3 limiting sliding block is fixedly connected to each side of the main shaft, and the two No. 3 limiting sliding blocks are in sliding connection with the two No. 3 limiting sliding slots respectively.

[0013] The arrangement of the No. 3 limiting sliding slot and the No. 3 limiting sliding block further improves the stability of the main shaft in the through hole, prevents the main shaft from shaking or deviating during cutting, and thus improves the cutting precision and safety.

[0014] Preferably, a smoothing roller is rotatably connected to each end of the bottom of the fixing frame, and the diameters of the two smoothing rollers are equal to the diameter of the circular cutting knife.

[0015] The smoothing roller arranged at the bottom of the fixing frame not only helps to smooth the silica gel protective film during cutting, reduces wrinkles or bubbles, but also ensures that the cutting line is smoother, thereby improving the cutting quality.

[0016] Preferably, the silica gel protective film body is wound on the surface of the winding drum, a mounting groove is arranged at each end of the top of the loading frame, and the two ends of the winding drum are respectively placed in the two mounting grooves.

[0017] The silica gel protective film body is wound on the winding drum and fixed on the loading frame through the mounting groove, which facilitates the storage and use of the silica gel protective film, and the mounting groove of the loading frame makes the mounting and dismounting of the winding drum more convenient, thereby improving the work efficiency.

[0018] Preferably, a locking piece is hingedly arranged at each end of the top of the loading frame, a buckle movable piece is mounted on the surface of the loading frame, a buckle fixed piece is mounted on the surface of the locking piece, and the buckle movable piece is buckled with the buckle fixed piece.

[0019] The combination of the locking piece, the buckle movable piece and the buckle fixed piece realizes the stable mounting of the winding drum on the loading frame, prevents the accidental falling of the winding drum during cutting, and improves the safety of operation.

[0020] Preferably, a guide roller is rotatably connected to the top of the bearing plate, the guide roller is arranged between the loading frame and the No. 1 cutting guide frame, and the guide roller is arranged close to the surface of the bearing plate.

[0021] The guide roller is arranged on the bearing plate, and the silica gel protective film body can be attached to the surface of the bearing plate by the action of the guide roller, which facilitates subsequent cutting.

[0022] In the above technical scheme, the technical effects and advantages of the present application are as follows:

[0023] 1. By designing the sliding structure of the first cutting guide frame, the second cutting guide frame and the third cutting guide frame, and cooperating with the use of the cutting mechanism, the user can easily adjust the cutting position and direction according to the actual needs, which not only simplifies the cutting operation, but also greatly improves the cutting efficiency and precision, avoids the errors and damages that may occur when using external tools for cutting;

[0024] 2. Simplify the replacement process of the winding drum, improve the convenience of use, the user only needs to place the winding drum at both ends in the assembly groove on the top of the loading frame, and fix it through the cooperation of the locking part, the buckle active part and the buckle fixed part, so that the assembly of the winding drum can be easily completed, and when the winding drum needs to be replaced, the user only needs to unlock the locking mechanism, so that the winding drum can be taken off from the loading frame, the whole process is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is the first perspective overall structure schematic view of the utility model;

[0026] Fig. 2 It is the second perspective overall structure schematic view of the utility model;

[0027] Fig. 3 It is the overall structure schematic view of the utility model in use;

[0028] Fig. 4 It is the overall structure schematic view of the utility model when the winding drum is disassembled;

[0029] Fig. 5 It is the structure schematic view of the second cutting guide frame, the third cutting guide frame and the cutting mechanism of the utility model;

[0030] Fig. 6 It is the structure schematic view of the third cutting guide frame and the cutting mechanism of the utility model.

[0031] BRIEF DESCRIPTION OF DRAWINGS:

[0032] 1, silica gel protective film main body;2, winding drum;3, loading frame;4, first cutting guide frame;5, second cutting guide frame;6, third cutting guide frame;7, cutting mechanism;8, bearing plate;9, first limit sliding block;10, first limit sliding groove;11, first limit bolt;12, first limit stop plate;13, second limit sliding block;14, second limit sliding groove;15, second limit bolt;16, second limit stop plate;17, main shaft;18, moving sliding groove;19, fixed frame;20, circular cutting knife;21, handle;22, return spring;23, third limit sliding block;24, flattening roller;25, assembly groove;26, locking part;27, buckle active part;28, buckle fixed part;29, guide roller. DETAILED DESCRIPTION

[0033] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0034] The utility model provides a kind of silica gel protective film convenient to slit use as Figs. 1-6 As shown in a kind of silica gel protective film convenient to slit use, including silica gel protective film main body 1, reel 2, loading frame 3, first cutting guide frame 4, second cutting guide frame 5, third cutting guide frame 6, cutting mechanism 7 and bearing plate 8, loading frame 3 and first cutting guide frame 4 are all fixedly connected on the top of bearing plate 8, first cutting guide frame 4 is set on the side of loading frame 3, second cutting guide frame 5 is slidably set on the top of first cutting guide frame 4, third cutting guide frame 6 is slidably set on the top of second cutting guide frame 5, cutting mechanism 7 is set in the middle part of third cutting guide frame 6;

[0035] The both ends of second cutting guide frame 5 respectively overhang on the both sides of first cutting guide frame 4, one end of second cutting guide frame 5 is fixedly connected with first limiting sliding block 9, one side of first cutting guide frame 4 is provided with first limiting sliding slot 10, first limiting sliding block 9 is slidably connected in the inside of first limiting sliding slot 10, the other end of second cutting guide frame 5 is threadedly connected with first limiting bolt 11, one end of first limiting bolt 11 close to first cutting guide frame 4 is fixedly connected with first limiting abutting plate 12, first limiting abutting plate 12 is tightly abutted with the surface of first cutting guide frame 4;

[0036] The both ends of third cutting guide frame 6 respectively overhang on the both sides of second cutting guide frame 5, one end of third cutting guide frame 6 is fixedly connected with second limiting sliding block 13, one side of second cutting guide frame 5 is provided with second limiting sliding slot 14, second limiting sliding block 13 is slidably connected in the inside of second limiting sliding slot 14, the other end of third cutting guide frame 6 is threadedly connected with second limiting bolt 15, one end of second limiting bolt 15 close to second cutting guide frame 5 is fixedly connected with second limiting abutting plate 16, second limiting abutting plate 16 is tightly abutted with the surface of second cutting guide frame 5;

[0037] Cutting mechanism 7 includes main shaft 17, mobile sliding slot 18 is set in the middle of the top of second cutting guide frame 5, through hole is set in the middle of the top of third cutting guide frame 6, main shaft 17 bottom end penetrates through through hole and mobile sliding slot 18 and extends to the below of second cutting guide frame 5, fixed frame 19 is threadedly connected with the bottom end of main shaft 17, circular cutting knife 20 is rotatably connected in the middle of the bottom of fixed frame 19, main shaft 17 top end extends to the above of third cutting guide frame 6 and is fixedly connected with handle 21, reset spring 22 is movably sleeved on the outside of main shaft 17, one end of reset spring 22 is abutted with the top of third cutting guide frame 6, the other end of reset spring 22 is abutted with the bottom of handle 21.

[0038] In one aspect of the embodiment, a through hole is provided with a No. three limiting sliding groove on each side, a No. three limiting sliding block 23 is fixedly connected to each side of the main shaft 17, the two No. three limiting sliding blocks 23 are slidably connected with the two No. three limiting sliding grooves respectively, a flattening roller 24 is rotatably connected to each end of the bottom of the fixing frame 19, the diameters of the two flattening rollers 24 are equal to the diameter of the circular cutting knife 20, the silica gel protective film main body 1 is wound on the surface of the winding drum 2, an assembly groove 25 is formed at each end of the top of the loading frame 3, the two ends of the winding drum 2 are placed in the two assembly grooves 25 respectively, a locking piece 26 is hingedly arranged at each end of the top of the loading frame 3, a buckle movable piece 27 is mounted on the surface of the loading frame 3, a buckle fixed piece 28 is mounted on the surface of the locking piece 26, the buckle movable piece 27 is buckled with the buckle fixed piece 28, a guide roller 29 is rotatably connected to the top of the bearing plate 8, and the guide roller 29 is arranged between the loading frame 3 and the No. one cutting guide frame 4 and is close to the surface of the bearing plate 8.

[0039] The utility model discloses a working principle:

[0040] Referring to the drawings in the specification Figs. 1-6 When using the utility model, first, the two ends of the winding drum 2 with the silica gel protective film main body 1 wound on the surface are placed in the assembly grooves 25 on the top of the loading frame 3, and the winding drum 2 is assembled on the loading frame 3 by cooperation of the locking piece 26, the buckle movable piece 27 and the buckle fixed piece 28.

[0041] Then, one end of the silica gel protective film main body 1 is pulled outwards and passes below the guide roller 29, and the silica gel protective film main body 1 can be attached to the surface of the bearing plate 8 by the action of the guide roller 29, facilitating subsequent cutting.

[0042] When adjusting the position of the No. three cutting guide frame 6 relative to the No. two cutting guide frame 5, the No. two limiting bolt 15 is first screwed, so that the No. two limiting abutting plate 16 no longer abuts against and limits the No. two cutting guide frame 5, and then the No. three cutting guide frame 6 can be pushed to move along the No. two limiting sliding groove 14, at this time, the main shaft 17 slides in the moving sliding groove 18, thereby driving the cutting mechanism 7 on it to move longitudinally, facilitating longitudinal cutting of the silica gel protective film main body 1, and when longitudinally cutting, the fixing frame 19 does not need to be screwed, and the circular cutting knife 20 can be kept parallel to the No. two cutting guide frame 5.

[0043] When adjusting the position of the second cutting guide frame 5 relative to the first cutting guide frame 4, the first limiting bolt 11 needs to be screwed first, so that the first limiting plate 12 no longer abuts against the first cutting guide frame 4, and then the second cutting guide frame 5 can be pushed to move along the first limiting sliding groove 10, thereby driving the third cutting guide frame 6 and the cutting mechanism 7 on it to move horizontally, facilitating the horizontal cutting of the silica gel protective film body 1. When cutting horizontally, the fixed frame 19 needs to be screwed by 90 degrees, so that the circular cutting knife 20 is perpendicular to the second cutting guide frame 5;

[0044] When cutting, the operator holds the handle 21 and presses it downward, driving the main shaft 17 and the circular cutting knife 20 to move downward to cut the silica gel protective film body 1. In the cutting process, the return spring 22 can provide appropriate resistance, so that the operator can control the cutting force more easily. At the same time, the smoothing roller 24 can roll and contact to smooth the edges of the cut silica gel protective film, avoiding curling or unevenness. After cutting, the operator releases the handle 21, and the return spring 22 returns to the open state, thereby pushing the handle 21 upward, raising the main shaft 17 and driving the circular cutting knife 20 to separate from the surface of the silica gel protective film.

Claims

1. A silica gel protective film for facilitating cutting use, comprising a silica gel protective film main body (1), a winding drum (2), a loading frame (3), a first cutting guide frame (4), a second cutting guide frame (5), a third cutting guide frame (6), a cutting mechanism (7) and a bearing plate (8), characterized in that: The loading frame (3) and the first cutting guide frame (4) are fixedly connected to the top of the bearing plate (8), the first cutting guide frame (4) is arranged on one side of the loading frame (3), the second cutting guide frame (5) is slidably arranged on the top of the first cutting guide frame (4), the third cutting guide frame (6) is slidably arranged on the top of the second cutting guide frame (5), and the cutting mechanism (7) is arranged in the middle of the third cutting guide frame (6). The two ends of the second cutting guide frame (5) are respectively suspended on the two sides of the first cutting guide frame (4), one end of the second cutting guide frame (5) is fixedly connected with a first limiting sliding block (9), one side of the first cutting guide frame (4) is provided with a first limiting sliding groove (10), the first limiting sliding block (9) is slidably connected in the first limiting sliding groove (10), the other end of the second cutting guide frame (5) is threadedly connected with a first limiting bolt (11), one end of the first limiting bolt (11) close to the first cutting guide frame (4) is fixedly connected with a first limiting abutting plate (12), and the first limiting abutting plate (12) is tightly abutted with the surface of the first cutting guide frame (4). The two ends of the third cutting guide frame (6) are respectively suspended on the two sides of the second cutting guide frame (5), one end of the third cutting guide frame (6) is fixedly connected with a second limiting sliding block (13), one side of the second cutting guide frame (5) is provided with a second limiting sliding groove (14), the second limiting sliding block (13) is slidably connected in the second limiting sliding groove (14), the other end of the third cutting guide frame (6) is threadedly connected with a second limiting bolt (15), one end of the second limiting bolt (15) close to the second cutting guide frame (5) is fixedly connected with a second limiting abutting plate (16), and the second limiting abutting plate (16) is tightly abutted with the surface of the second cutting guide frame (5). The cutting mechanism (7) comprises a main shaft (17), a moving sliding groove (18) is formed in the middle of the top of the second cutting guide frame (5), a through hole is formed in the middle of the top of the third cutting guide frame (6), the bottom end of the main shaft (17) penetrates through the through hole and the moving sliding groove (18) and extends below the second cutting guide frame (5), the bottom end of the main shaft (17) is threadedly connected with a fixing frame (19), a circular cutting knife (20) is rotatably connected to the middle of the bottom of the fixing frame (19), the top end of the main shaft (17) extends above the third cutting guide frame (6) and is fixedly connected with a handle (21), a reset spring (22) is movably sleeved on the outer side of the main shaft (17), one end of the reset spring (22) is abutted with the top of the third cutting guide frame (6), and the other end of the reset spring (22) is abutted with the bottom of the handle (21).

2. The protective film according to claim 1, wherein: A third limiting sliding groove is formed on each side of the through hole, a third limiting sliding block (23) is fixedly connected to each side of the main shaft (17), and the two third limiting sliding blocks (23) are slidably connected with the two third limiting sliding grooves respectively.

3. The protective film according to claim 1, wherein: The bottom of the fixing frame (19) is rotatably connected with a flattening roller (24) at each end, and the diameter of the two flattening rollers (24) is equal to the diameter of the circular cutting knife (20).

4. The protective film according to claim 1, wherein: The silicone protective film body (1) is wound on the surface of the winding drum (2), the top of the loading frame (3) is provided with an assembly groove (25) at each end, and the two ends of the winding drum (2) are respectively placed in the two assembly grooves (25).

5. The protective film according to claim 1, wherein: The top of the loading frame (3) is hingedly provided with a locking piece (26) at each end, a buckle movable piece (27) is mounted on the surface of the loading frame (3), a buckle fixed piece (28) is mounted on the surface of the locking piece (26), and the buckle movable piece (27) is buckled with the buckle fixed piece (28).

6. The protective film according to claim 1, wherein: The top of the bearing plate (8) is rotatably connected with a guide roller (29), the guide roller (29) is arranged between the loading frame (3) and the first cutting guide frame (4), and the guide roller (29) is arranged close to the surface of the bearing plate (8).

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