Optical film cutting device

Abstract

The utility model provides an optical film cutting device which comprises a cutting table, limiting grooves are formed in the two sides of the top of the cutting table, pressing assemblies are arranged in the limiting grooves, the top of the cutting table is fixedly connected with a fixing frame, an electric push rod is arranged at the top of the fixing frame, and an ejector rod of the electric push rod is fixedly connected with a fixing plate. A cutter is arranged at the bottom of the fixing plate, a positioning assembly is arranged on the outer side of the fixing plate, a cutting groove used in cooperation with the cutter is formed in the top of the cutting table, and the pressing assembly comprises a rotating roller rotationally arranged in a limiting groove. The optical film cutting device solves the problems that in actual use of an existing device, the cutting position of a film material is not effectively pressed, the film material is prone to upwarp, offset and the like in the cutting process, the pressing effect is poor, meanwhile, an air cylinder needs to be controlled to drive an abutting block to ascend and descend before cutting and after cutting, operation is inconvenient, and the cutting efficiency is high. And the working efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of film material cutting, in particular to an optical film cutting device. Background Art

[0002] Optical thin film refers to an optical element that is coated with one or more layers of thin film on the surface of various materials such as optical glass, optical plastic, optical fiber, crystal, etc., and changes the intensity, polarization state and phase change of transmitted or reflected light based on the interference effect of light within the thin film. It is an important component of modern optical instruments and optical devices, and thin film cutting is also an indispensable part.

[0003] In the patent document with the publication number CN218170515U, an optical film cutting device is disclosed, including a workbench, the lower left and lower right parts of the workbench are fixedly connected to fixed leg frames, the upper front and upper rear parts of the workbench are fixedly connected to fixed plates, an optical film roller is movably connected between the two fixed plates, the upper end of the workbench is fixedly connected to a limiting structure, and the limiting structure is located at the right part of the optical film roller, the upper rear part of the workbench is fixedly connected to a cutting frame, the inner right wall of the cutting frame is provided with a limiting slot, the upper end of the cutting frame is fixedly connected to a cutting mechanism, and the cutting mechanism is slidably connected to the limiting slot, and the upper front and upper rear parts of the workbench are fixedly connected to an L-shaped frame. In the process of implementing this technical solution, the inventor found that there are at least the following problems in the prior art:

[0004] When the above device is actually used, the cylinder drives the resistance block to press the optical film to prevent the optical film from shifting and affecting the cutting accuracy. However, the resistance block is far away from the cutting knife. Since the film material is soft, the cutting part of the film material is not effectively pressed, causing the film material to easily warp and shift during cutting, and the pressing effect is poor. At the same time, the cylinder needs to be controlled to drive the resistance block to rise and fall before and after cutting, which is inconvenient to operate and affects work efficiency.

[0005] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Therefore, the above content belongs to the technical cognition of the inventor and does not necessarily constitute prior art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide an optical film cutting device to solve the problems raised in the above background technology.

[0007] The optical film cutting device provided by the utility model comprises a cutting table, wherein limiting grooves are provided on both sides of the top of the cutting table, a clamping assembly is arranged inside the limiting groove, a fixing frame is fixedly connected to the top of the cutting table, an electric push rod is arranged on the top of the fixing frame, a top rod of the electric push rod is fixedly connected to a fixing plate, a cutting knife is arranged at the bottom of the fixing plate, a positioning assembly is arranged on the outside of the fixing plate, and a cutting groove used in conjunction with the cutting knife is provided on the top of the cutting table.

[0008] Preferably, the clamping assembly includes a rotating roller rotatably arranged inside the limiting groove, lifting blocks are slidably connected to both sides of the inner wall of the cutting table, a first spring is fixedly connected to the top of the lifting block, a pressure roller is rotatably connected to the inner wall of the lifting block via a rotating shaft, a pulling block is fixedly connected to the top of the lifting block, and a pulling rod is fixedly connected to the top of the pulling block.

[0009] Preferably, the rotating roller and the pressing roller are both made of rubber, and the outer side of the pulling block is slidably matched with the inner wall of the cutting table.

[0010] Preferably, the positioning assembly includes fixed blocks arranged on both sides of the fixed plate, the number of the fixed blocks is set to three, the bottom of the fixed block is fixedly connected to a fixed rod, the outer side of the fixed rod is slidably connected to a fixed cylinder, a second spring is arranged inside the fixed cylinder, and the bottom of the fixed cylinder is fixedly connected to the positioning plate.

[0011] Preferably, the tops of both sides of the inner wall of the limiting groove are provided with arc-shaped openings, and the bottom of the limiting groove is provided with an inclined concave surface.

[0012] Preferably, through slots are provided on both sides of the fixing frame, and guide blocks are slidably connected to inner walls of the through slots, and one side of the guide blocks is fixedly connected to one side of the fixing plate.

[0013] Preferably, the bottom of the cutting table is fixedly connected with fixed legs, and the number of the fixed legs is set to four.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The optical film cutting device uses two sets of rotating rollers and pressure rollers to press the film material without affecting the transmission, thereby improving the tension of the film cutting position. When the cutter moves downward, the positioning plates on both sides thereof will first contact the top of the film material, and the fixing rod at the bottom of the fixing block slides in the fixing cylinder and compresses the second spring. Under the elastic force of the second spring, the positioning plate is pressed, so that the positioning plate presses the film material on both sides of the cutting groove. The film material will not move with the cutter during cutting, thereby improving the fixing effect of the film material and ensuring the accuracy of the film material after cutting.

[0016] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0017] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the optical film cutting device provided by the utility model;

[0020] Figure 2 It is a structural schematic diagram of the clamping assembly shown in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the positioning assembly shown in the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the limiting groove shown in the utility model.

[0023] Numbers in the figure: 1. Cutting table; 2. Limiting groove; 3. Clamping assembly; 31. Rotating roller; 32. Lifting block; 33. First spring; 34. Pressing roller; 35. Pull block; 36. Pull rod; 4. Fixed frame; 5. Electric push rod; 6. Fixed plate; 7. Cutter; 8. Positioning assembly; 81. Fixed block; 82. Fixed rod; 83. Fixed cylinder; 84. Second spring; 85. Positioning plate; 9. Cutting groove; 10. Arc mouth; 11. Oblique concave surface; 12. Through groove; 13. Guide block; 14. Fixed leg. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figure 1-Figure 4 , an optical film cutting device comprises a cutting table 1.

[0029] In the specific implementation process, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, limiting grooves 2 are provided on both sides of the top of the cutting table 1, and a clamping assembly 3 is arranged inside the limiting groove 2. A fixing frame 4 is fixedly connected to the top of the cutting table 1, and an electric push rod 5 is arranged on the top of the fixing frame 4. The top rod of the electric push rod 5 is fixedly connected to a fixing plate 6, a cutting knife 7 is arranged at the bottom of the fixing plate 6, and a positioning assembly 8 is arranged on the outside of the fixing plate 6. A cutting groove 9 used in conjunction with the cutting knife 7 is provided on the top of the cutting table 1.

[0030] The clamping assembly 3 includes a rotating roller 31 rotatably arranged inside the limiting groove 2, and lifting blocks 32 are slidably connected to both sides of the inner wall of the cutting table 1. A first spring 33 is fixedly connected to the top of the lifting block 32. A pressure roller 34 is rotatably connected to the inner wall of the lifting block 32 through a rotating shaft, a pulling block 35 is fixedly connected to the top of the lifting block 32, and a pulling rod 36 is fixedly connected to the top of the pulling block 35.

[0031] The materials of the rotating roller 31 and the pressing roller 34 are both set to be rubber material, and the outer side of the pulling block 35 is slidably matched with the inner wall of the cutting table 1.

[0032] The positioning assembly 8 includes fixed blocks 81 arranged on both sides of the fixed plate 6, the number of the fixed blocks 81 is set to three, the bottom of the fixed block 81 is fixedly connected to a fixed rod 82, the outer side of the fixed rod 82 is slidably connected to a fixed cylinder 83, a second spring 84 is arranged inside the fixed cylinder 83, and the bottom of the fixed cylinder 83 is fixedly connected to a positioning plate 85.

[0033] It should be noted that: the lifting block 32 is pulled upward by the pull rod 36 and the pull block 35, and the lifting block 32 drives the pressure roller 34 to rise, so that the distance between the rotating roller 31 and the pressure roller 34 becomes larger, and one end of the optical film is inserted from one side of the limiting groove 2, and the optical film is inserted under the pressure roller 34 and then pulled out from the other side of the limiting groove 2, and then the pull rod 36 is released, and the lifting block 32 returns to the initial position under the elastic force of the first spring 33, so that the pressure roller 34 cooperates with the rotating roller 31 to press the optical film, and the transmission of the optical film is not affected during the pressing, and the film cutting position (below the cutter 7) is improved by the two sets of rotating rollers 31 and the pressure roller 34. )'s tension, the electric push rod 5 on the top of the fixing frame 4 drives the fixing plate 6 to descend, causing the cutter 7 to descend. The height of the positioning plate 85 is greater than that of the cutter 7. Therefore, the positioning plates 85 on both sides of the cutter 7 will first contact the top of the membrane material, and the cutting part of the membrane material will be pressed and fixed again. The cutter 7 continues to move down into the cutting groove 9 to cut the membrane material. When the cutter 7 moves down, the fixing rod 82 at the bottom of the fixing block 81 slides in the fixing cylinder 83 and compresses the second spring 84. Under the elastic force of the second spring 84, the positioning plate 85 is pressed, thereby improving the fixing effect of the membrane material and ensuring the accuracy of the membrane material after cutting.

[0034] The tops of both sides of the inner wall of the limiting groove 2 are provided with arc-shaped openings 10 , and the bottom of the limiting groove 2 is provided with an inclined concave surface 11 .

[0035] Through slots 12 are provided on both sides of the fixing frame 4 , and guide blocks 13 are slidably connected to the inner walls of the through slots 12 , and one side of the guide block 13 is fixedly connected to one side of the fixing plate 6 .

[0036] A fixing leg 14 is fixedly connected to the bottom of the cutting table 1, and the number of the fixing legs 14 is set to four.

[0037] It should be noted that arc-shaped openings 10 are provided on both sides of the limit groove 2, and an inclined concave surface 11 is provided at the bottom of the limit groove 2, so that the film material is not easily scratched when it is transmitted in the limit groove 2. When the fixed plate 6 is raised or lowered, the guide block 13 moves in the through groove 12 to guide and limit the fixed plate 6, thereby improving the stability of the cutter 7 during cutting, and the cutting table 1 is supported and fixed by the fixed legs 14 to improve the stability of the cutting table 1.

[0038] The working principle of an optical film cutting device provided by the utility model is as follows:

[0039] When in use, the lifting block 32 is pulled upward by the pull rod 36 and the pull block 35, and the lifting block 32 drives the pressure roller 34 to rise, so that the distance between the rotating roller 31 and the pressure roller 34 becomes larger, and one end of the optical film is inserted from one side of the limiting groove 2, and the optical film is inserted under the pressure roller 34 and then pulled out from the other side of the limiting groove 2, and then the pull rod 36 is released, and the lifting block 32 returns to the initial position under the elastic force of the first spring 33, so that the pressure roller 34 cooperates with the rotating roller 31 to press the optical film, and the transmission of the optical film is not affected during the pressing, and the tension of the film cutting position is improved by the two sets of rotating rollers 31 and the pressure roller 34. The electric push rod 5 on the top of the fixing frame 4 drives the fixing plate 6 to descend, so that the cutter 7 descends. The height of the positioning plate 85 is greater than that of the cutter 7. Therefore, the positioning plates 85 on both sides of the cutter 7 will first contact the top of the membrane material, and the cutting part of the membrane material will be pressed and fixed again. The cutter 7 continues to move down into the cutting groove 9 to cut the membrane material. When the cutter 7 moves down, the fixing rod 82 at the bottom of the fixing block 81 slides in the fixing cylinder 83 and compresses the second spring 84. Under the elastic force of the second spring 84, the positioning plate 85 is pressed, thereby improving the fixing effect of the membrane material and ensuring the accuracy of the membrane material after cutting.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An optical film cutting device, characterized in that: The invention comprises a cutting table (1), wherein both sides of the top of the cutting table (1) are provided with limit grooves (2), a clamping assembly (3) is arranged inside the limit grooves (2), a fixing frame (4) is fixedly connected to the top of the cutting table (1), an electric push rod (5) is arranged on the top of the fixing frame (4), a top rod of the electric push rod (5) is fixedly connected to a fixing plate (6), a cutting knife (7) is arranged at the bottom of the fixing plate (6), a positioning assembly (8) is arranged on the outside of the fixing plate (6), and a cutting groove (9) used in conjunction with the cutting knife (7) is arranged on the top of the cutting table (1).

2. The optical film cutting device according to claim 1, characterized in that: The clamping assembly (3) comprises a rotating roller (31) rotatably arranged inside the limiting groove (2); both sides of the inner wall of the cutting table (1) are slidably connected with a lifting block (32); the top of the lifting block (32) is fixedly connected with a first spring (33); the inner wall of the lifting block (32) is rotatably connected with a pressure roller (34) via a rotating shaft; the top of the lifting block (32) is fixedly connected with a pulling block (35); the top of the pulling block (35) is fixedly connected with a pulling rod (36).

3. The optical film cutting device according to claim 2, characterized in that: The rotating roller (31) and the pressing roller (34) are both made of rubber material, and the outer side of the pulling block (35) is slidably matched with the inner wall of the cutting table (1).

4. The optical film cutting device according to claim 1, characterized in that: The positioning assembly (8) comprises fixed blocks (81) arranged on both sides of the fixed plate (6), the number of the fixed blocks (81) is set to three, the bottom of the fixed block (81) is fixedly connected to a fixed rod (82), the outer side of the fixed rod (82) is slidably connected to a fixed cylinder (83), a second spring (84) is arranged inside the fixed cylinder (83), and the bottom of the fixed cylinder (83) is fixedly connected to a positioning plate (85).

5. The optical film cutting device according to claim 1, characterized in that: The tops of both sides of the inner wall of the limiting groove (2) are provided with arc-shaped openings (10), and the bottom of the limiting groove (2) is provided with an inclined concave surface (11).

6. The optical film cutting device according to claim 1, characterized in that: Through slots (12) are provided on both sides of the fixing frame (4), and guide blocks (13) are slidably connected to the inner walls of the through slots (12), and one side of the guide blocks (13) is fixedly connected to one side of the fixing plate (6).

7. The optical film cutting device according to claim 1, characterized in that: The bottom of the cutting table (1) is fixedly connected with fixed legs (14), and the number of the fixed legs (14) is set to four.

Images