Cutting jig for prism film and cutting tool of cutting jig

Abstract

According to the cutting jig and the cutting tool of the prism film, the air guide hoses are embedded in the portions, on one side of the side blade and one side of the punching blade, of the cutting base plate, and the air jet holes facing the side blade or the punching blade are correspondingly formed in the air guide hoses; therefore, air flow generated by the micro air pump is jetted to the surfaces of the side blade and the punching blade through the air jet holes, residues on the side blade and the punching blade are effectively removed, cleanliness of the surfaces of the cutting blade and the punching blade is guaranteed, and the situation that the cutting quality and efficiency are reduced due to the fact that membranes or impurities adhere to the surfaces of the cutting blade and the punching blade is avoided. The cutting edge performance is prevented from being damaged; in addition, the surfaces of the side blades and the punching blades are coated with titanium nitride coatings with lubrication and wear resistance, so that edge burrs and damage are reduced when the prism film is cut, and the cutting quality and efficiency are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to prism film production technical field especially relates to a kind of cutting jig and cutting tool of prism film. BACKGROUND

[0002] Prism film is widely used in various display devices, such as LCD panel, LED backlight module, etc. Since the size and shape of different display devices are different, the prism film produced usually needs to be cut so that it can perfectly fit the display area of the display device and fully exert the optical performance of the prism film.

[0003] However, due to the difference in prism film material, cutting process or cutting tool, the prism film may occasionally leave some film material on the cutting tool during cutting. The cutting tool may also be contaminated by external impurities during use. Since the prism film has high precision requirements, the surface quality and edge smoothness have important influence on subsequent use and performance. If impurities, film material or other contaminants are left on the cutting tool, it may not only cause wear to the cutting tool during cutting, but also may embed into the surface or edge of the prism film, resulting in reduced cutting quality and efficiency.

[0004] Therefore, in order to improve the cutting quality and efficiency, it is necessary to propose a cutting jig and cutting tool for prism film that can clean the cutting tool. SUMMARY

[0005] The utility model proposes a kind of cutting jig and cutting tool for prism film in view of the existing problems.

[0006] A kind of cutting tool for prism film, comprising a cutting base plate and at least one cutting edge mounted on the cutting base plate;The cutting edge is rectangular, and the cutting edge includes four side edges connected in turn, at least one side edge of the side edge is provided with a plurality of bending parts bent to the inside of the side edge or bent to the outside of the side edge;At least one punching edge is provided on the cutting base plate inside the cutting edge;Gas hose is embedded on the cutting base plate on one side of the side edge and punching edge, a plurality of gas outlets are provided on the gas hose corresponding to the side edge or punching edge;A micro air pump is installed on the other side of the cutting base plate;The gas hose is communicated with a gas pipe, and the gas pipe is communicated with the gas outlet of the micro air pump;The surface of the side edge and punching edge is coated with titanium nitride coating.

[0007] Further, a micro nozzle is installed on the gas outlet.

[0008] Further, a plurality of grooves are provided on the cutting base plate for mounting the gas hose, at least one through hole is provided in the groove, and the gas hose is communicated with the gas pipe through the through hole.

[0009] Further, the cutting base plate is a rectangular cutting base plate, and a circular hole is arranged at each corner of the cutting base plate.

[0010] Further, at least two cutting blades are sequentially arranged on the cutting base plate, and at least two punching blades are arranged on the inner side of each cutting blade.

[0011] Further, a plurality of film pressing contacts are arranged between the two cutting blades, the film pressing contact comprises a contact cavity and a contact head telescopically arranged in the contact cavity through a spring, and the end surface of the contact head is higher than the end surface of the contact cavity.

[0012] Further, the connecting end between the side blades is in an arc structure.

[0013] Further, the blade angle of the cutting blade and the punching blade is equal, and is 30°-45°.

[0014] The utility model also provides a prism film cutting jig, including a prism film cutting cutter as described above.

[0015] Further, the utility model also comprises a mounting frame and a workbench arranged below the mounting frame, the workbench is used for placing the prism film which is not cut, a driving mechanism and a lifting seat are arranged on the mounting frame, a supporting cylinder is arranged around the lifting seat close to one side of the workbench, and a mounting hole matched with the circular hole is arranged on one end of the supporting cylinder close to the workbench, the cutting base plate is screwed through the circular hole and is connected with the mounting hole in a threaded mode, and the blade of the cutting blade faces the workbench, and the driving mechanism is used for driving the cutting base plate on the lifting seat to move along the direction close to or far away from the workbench.

[0016] The utility model has the advantages that the utility model provides a prism film cutting jig and cutting cutter, the air hose is embedded on the cutting base plate on the side blade and the punching blade, the air outlet facing the side blade or the punching blade is arranged on the air hose, the airflow generated by the micro air pump is sprayed to the surface of the side blade and the punching blade through the air outlet, the residues on the side blade and the punching blade are effectively removed, the surface of the cutting blade and the punching blade is cleaned, the film or impurities adhered to the surface of the cutting blade and the punching blade is avoided, the cutting quality and efficiency are improved, and the performance of the blade is not damaged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1It is the cutting tool structure schematic diagram of the prism film provided by the utility model.

[0018] Figure 2 It is the pressing film contact structure schematic diagram through the utility model.

[0019] Figure 3 It is the cutting tool structure schematic diagram of the prism film provided by the utility model.

[0020] The drawing mark

[0021] 1, cutting base plate; 2, cutting blade; 21, side blade; 22, bending part; 3, punching blade; 4, air hose; 5, air jet; 6, micro air pump; 7, round hole; 8, pressing film contact; 81, contact cavity; 82, contact; 84, threaded joint; 9, mounting frame; 10, workbench; 11, driving mechanism; 12, lifting seat; 13, supporting cylinder; 14, screw. Specific implementation

[0022] In order to further introduce the utility model, the following will be described in conjunction with the drawings. It is particularly pointed out that the embodiments described below are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0023] Referring to Figure 1 As shown in the figure, a cutting tool of prism film includes cutting base plate 1 and at least one cutting blade 2 mounted on cutting base plate 1. The cutting base plate 1 on the inner side of the cutting blade 2 is provided with at least one punching blade 3. The cutting blade 2 and punching blade 3 are used to cut the uncut prism film into corresponding specifications and target shape of prism film. In this embodiment, the cutting base plate 1 is provided with a waist-shaped hole at both ends for taking the cutting base plate 1.

[0024] Specifically, the cutting blade 2 is rectangular, and the cutting blade 2 includes four side blades 21 connected in sequence, and at least one side blade 21 is provided with a plurality of bending parts 22 bent inward or outward. In this embodiment, the connecting end between the side blades 21 is arc-shaped structure. The size of the punching blade 3 is not unique. The punching blade 3 and the cutting blade 2 can meet the cutting requirements of prism film of different shapes and sizes. The blade angle of the cutting blade 2 and the punching blade 3 is equal, and is 30°-45°.

[0025] The side blade 21 and the punching blade 3 side of the cutting base plate 1 are embedded with air guide hose 4, the air guide hose 4 is provided with a plurality of air outlet 5 corresponding to the side blade 21 or punching blade 3; The other side of the cutting base plate 1 is provided with a micro air pump 6; The air guide hose 4 is communicated with a gas pipe (not shown in the figure), and the gas pipe is communicated with the gas outlet of the micro air pump 6.

[0026] The micro air pump 6 is small in size, light in weight and low in power consumption, and is suitable for long time continuous work. The air outlet 5 is connected with the air guide hose 4 and the gas pipe in turn, and is connected with the micro air pump 6. The airflow generated by the micro air pump flows out from the gas outlet, flows to the air guide hose through the gas pipe, and finally sprays out from the air outlet 6. The film material, impurities and other residues on the surface of the side blade 21 or the punching blade 3 are blown away by the airflow, thereby realizing the cleaning of the surface of the side blade 21 or the punching blade 3, ensuring the cleaning of the surface of the cutting blade and the punching blade, so that the cutting quality and efficiency can be improved, the edge smoothness and surface cleanliness of the cutting prism film can be guaranteed, the wear of the blade caused by the surface residues during cutting can be avoided, the subsequent cutting quality and efficiency can not be affected, and the service life of the blade can be prolonged.

[0027] The cutting base plate 1 is provided with a plurality of grooves (not shown in the figure) for mounting the air guide hose 4, and at least one through hole (not shown in the figure) is arranged in the groove. The air guide hose 4 is communicated with the gas pipe through the through hole. The air guide hose 4 is embedded in the groove, and the communication end thereof is extended to the other side of the cutting base plate 1 through the through hole and communicated with the gas pipe, so as to fix the air guide hose 4, avoid the influence of the volume of the air guide hose 4 on the use of the blade during cutting, and avoid the displacement of the air guide hose 4 during use to affect the normal cutting. In actual application, a U-shaped nail can be sleeved outside the air guide hose 4, and the U-shaped nail can be fixed to the side wall of the groove to further reinforce the air guide hose 4.

[0028] Preferably, the air outlet 5 is provided with a micro nozzle (not shown in the figure). The micro nozzle can improve the impact force of the airflow, further improve the jet force of the gas sprayed from the air outlet, and improve the cleaning strength.

[0029] The surface of the side blade 21 and the punching blade 3 is coated with a titanium nitride coating (not shown in the figure). The titanium nitride coating has lubricating and wear-resistant properties, so as to reduce the generation of edge burrs and damage of the prism film during cutting, and further improve the cutting quality and efficiency.

[0030] Further, the cutting base plate 1 is a rectangular cutting base plate, and the four corners of the cutting base plate are respectively provided with a round hole 7. The round hole 7 is used for mounting the cutting base plate 1 on the cutting equipment.

[0031] refer to Figure 1 and Figure 2 As shown, in some embodiments, at least two cutting blades 2 are sequentially mounted on the cutting substrate 1 , and at least two punching blades 3 are provided on the cutting substrate 1 inside the cutting blades 2 .

[0032] A plurality of film pressing contacts 8 are provided between the two cutting blades 2. The film pressing contacts 8 are used to press the uncut prism film during cutting to prevent uneven cutting caused by swelling or displacement of the raw material film during cutting.

[0033] Among them, reference Figure 2 As shown, the die-cast contact 8 includes a contact cavity 81 and a contact 82 telescopically mounted in the contact cavity 81 via a spring 83 , and an end surface of the contact 82 is higher than an end surface of the contact cavity 81 .

[0034] The present embodiment realizes the movable installation of the contact 81 and the contact cavity 82 in the following manner: the contact 81 is retractably mounted in the contact cavity 82 by means of a spring 83, wherein the contact 81 and the contact cavity 82 are both extended with a protrusion on one side close to the spring 83, which is interference fit with the hollow part of the spring, wherein the end face of the contact 81 is higher than the end face of the contact cavity 82, when the prism film not cut by the cutting tool is pressed down, the contact 81 first touches the uncut prism film, and when the downward pressure continues, the contact 81 gradually presses the uncut prism film under the action of the elastic force until the cutting tool stops pressing down. It should be noted that the telescopic stroke of the contact 81 during the film pressing operation is less than the distance between the end face of the contact 81 and the end face of the contact cavity 82, that is, the downward pressure stroke of the cutting tool is less than the distance between the two end faces, thereby preventing the contact cavity 82 from crushing the uncut prism film due to excessive downward pressure.

[0035] Preferably, the cutting substrate 1 is provided with a threaded hole for installing the contact cavity 8 at the position corresponding to the installation of the pressing contact 8, and the contact cavity 8 is installed on one side of the back plate and is provided with a threaded joint 84 corresponding to the threaded hole. The installation method of the detachable pressing contact can flexibly adjust the position according to the shape of the film and the cutting blade to achieve the best pressing effect, thereby improving versatility.

[0036] refer to Figure 3 As shown, the present invention also provides a prismatic film cutting jig, comprising the prismatic film cutting tool as described above.

[0037] Specifically, the cutting jig further comprises a mounting frame 9 and a workbench 10 arranged directly below the mounting frame 9; the workbench 10 is used for placing uncut prism films; the mounting frame 9 is provided with a driving mechanism 11 and a lifting seat 12, the lifting seat 12 is provided with a supporting cylinder 13 around one side close to the workbench 10, and the supporting cylinder 13 is provided with a mounting hole (not shown in the figure) matched with the round hole 7 at one end close to the workbench 10; the cutting base plate 1 is fixed by a screw 14 penetrating through the round hole 7 and being screwed with the mounting hole 14, and the supporting cylinder 13 and the lifting seat 12 form a space for accommodating the gas conveying pipe, the miniature air pump 6 and the power supply, etc., while fixing the cutting tool, and the cutting blade 2 of the cutting tool is directed towards the workbench 10; the driving mechanism 11 is used for driving the cutting base plate 1 on the lifting seat 12 to move along the direction close to or away from the workbench 10. In actual application, the driving mechanism comprises a telescopic rod and a motor for driving the telescopic rod, and the motor drives the telescopic rod to extend or retract, so as to realize the lifting of the lifting seat 12 connected to one end of the telescopic rod.

[0038] The working principle of the cutting jig is as follows: the uncut prism film is placed on the workbench 10, the driving mechanism 11 drives the cutting base plate 1 on the lifting seat 12 to move along the direction close to the workbench 10, so that the cutting blade 2 and the punching blade 3 on the cutting base plate 1 press down on the uncut prism film, the uncut prism film on the workbench 10 is cut, and the prism film with corresponding shape and specification is obtained. After cutting, the driving mechanism 11 drives the cutting base plate 1 on the lifting seat 12 to move along the direction away from the workbench 10, the uncut prism film is placed again, and the next cutting is performed.

[0039] The cutting jig and the cutting tool of the prism film provided by the utility model can effectively remove the residues on the side blade and the punching blade 2 by spraying the airflow generated by the air pump to the surfaces of the side blade 21 and the punching blade 3 through the air outlet, so as to ensure the cleanliness of the surfaces of the cutting blade 2 and the punching blade 3, thereby avoiding the adhesion of the film or impurities on the surfaces of the cutting blade 2 and the punching blade 3, and avoiding the damage of the performance of the cutting blade. In addition, the surfaces of the side blade 21 and the punching blade 3 are coated with a titanium nitride coating layer with lubricating and wear-resistant properties, so as to reduce the generation of edge burrs and damage during the cutting of the prism film, and further improve the cutting quality and efficiency.

[0040] The above is only the preferred embodiment of the utility model, and it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the utility model, and the protection scope of the utility model should be subject to the range defined by the claims. For ordinary skilled persons in the art, some improvements and refinements can be made without departing from the spirit and scope of the utility model, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A cutting tool for a prismatic film, characterized by comprising: The cutting base plate and at least one cutting blade installed on the cutting base plate are included. The cutting blade is rectangular, and the cutting blade includes four side blades connected in sequence, at least one of the side blades is provided with a plurality of bending parts bent inward or outward. At least one punching blade is arranged on the cutting base plate inside the cutting blade. A gas guide hose is embedded on one side of the cutting base plate of the side blade and the punching blade, and a plurality of gas injection ports are arranged on the gas guide hose and face the side blade or the punching blade. A micro air pump is installed on the other side of the cutting base plate; the gas guide hoses are communicated with a gas conveying pipe, and the gas conveying pipe is communicated with a gas outlet of the micro air pump. The surfaces of the side blade and the punching blade are coated with a titanium nitride coating.

2. The cutting tool for a prism film according to claim 1, wherein A micro nozzle is installed on the gas injection port.

3. The cutting tool for a prism film according to claim 1, wherein A plurality of grooves for installing the gas guide hoses are arranged on the cutting base plate, at least one through hole is arranged in the grooves, and the gas guide hoses pass through the through holes and are communicated with the gas conveying pipe.

4. The cutting tool for a prism film according to claim 1, wherein The cutting base plate is a rectangular cutting base plate, and a circular hole is arranged at each corner of the cutting base plate.

5. The cutting tool for a prism film according to claim 1, wherein At least two cutting blades are sequentially installed on the cutting base plate, and at least two punching blades are arranged on the cutting base plate inside the cutting blade.

6. The cutting tool for a prism film according to claim 5, wherein A plurality of film pressing contacts are arranged between the two cutting blades, the film pressing contact includes a contact cavity and a contact head telescopically installed in the contact cavity through a spring, and the end surface of the contact head is higher than the end surface of the contact cavity.

7. The cutting tool of claim 1, wherein The connecting end between the side blades is in an arc shape.

8. The cutting tool for a prismatic film according to claim 1, wherein The blade angles of the cutting blade and the punching blade are equal and are 30°-45°.

9. A cutting jig for a prism film, characterized by The cutting tool includes the prism film according to claim 4.

10. The cutting jig of the prism film according to claim 9, wherein The cutting tool further includes a mounting frame and a workbench arranged directly below the mounting frame; the workbench is used to place the uncut prism film; the mounting frame is provided with a driving mechanism and a lifting seat, a support cylinder is arranged around the side of the lifting seat close to the workbench, and the end of the support cylinder close to the workbench is provided with a mounting hole matched with the circular hole; the cutting base plate passes through the circular hole through a screw and is threadedly connected with the mounting hole; and The blade of the cutting blade faces the workbench; the driving mechanism is used to drive the cutting base plate on the lifting seat to move along the direction close to or away from the workbench.

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