CN219235365U - Blade and cutting knife - Google Patents

Abstract

The utility model provides a blade and cutting knife, the blade include the base member with set up in tool bit on the base member, the blade of tool bit has a angle and a secondary angle, and a angle is used for puncturing the film on the product, and a secondary angle is used for dividing the film. The film is pierced and torn through the primary angle and the secondary angle, the material brittleness requirement of a product to be cut is reduced, and the cutting efficiency and effect are improved.

Description

Blade and cutting knife

Technical Field

The utility model relates to the field of cutting tools, in particular to a cutting tool for cutting films.

Background

Along with the rapid development of the liquid crystal display industry, the photovoltaic industry and the decorative mirror industry, for example, surface film products such as flexible screens, electronic tags, electronic books, photovoltaic glass, cosmetic mirrors and the like are more and more, for example, ultra-thin film glass products are cut, a laser cutting or cutter wheel cutting mode is generally adopted at present, the cutting cost is relatively high and the cutting efficiency is relatively low in the laser cutting mode, the cutter wheel cutting mode is more suitable for cutting brittle materials such as glass products, a plastic deformation area is formed by rolling a cutter wheel on glass, transverse and longitudinal cracks are generated, the cracks are separated by utilizing the brittleness of the materials, the film on the product obviously has no brittleness, and the cutting effect is poorer than that of brittle materials. In addition, the special-shaped cutting requirements are increased nowadays, for example, a plurality of special shapes such as a round shape, a Liu Haibing shape, a water drop screen and the like are cut by adopting a cutter wheel, the flexibility of rotating the cutter is poor, and the special-shaped cutting difficulty is high.

Therefore, in order to overcome the above drawbacks, it is necessary to provide a blade and a cutter that are more suitable for the special-shaped cutting of the coating film on the product.

Disclosure of Invention

The utility model aims to provide a blade and a cutting knife, wherein the blade adopts two cutting angles, the primary angle is used for puncturing a film on a product, the secondary angle is used for cutting the film, and the film covered on the product is easy to cut.

The blade comprises a base body and a blade head arranged on the base body, wherein the blade edge of the blade head is provided with a primary angle and a secondary angle, the primary angle is used for puncturing a film on a product, and the secondary angle is used for scratching the film; the film is pierced and scratched through the primary angle and the secondary angle, so that the material brittleness requirement of a product to be cut is reduced, and the cutting efficiency and effect are improved;

further, the primary angle ranges from 30 degrees to 160 degrees, and the secondary angle ranges from 60 degrees to 160 degrees;

further, the thickness of the blade is 0.2 mm-2 mm;

further, the tool tip comprises a polycrystalline diamond tool tip;

further, the base comprises a cemented carbide substrate.

The cutting knife comprises a frame body, a rotating mechanism and a blade, wherein one end of the frame body is arranged on the rotating mechanism, the blade is detachably arranged at the other end of the frame body, and the cutter head on the blade is eccentrically arranged relative to the rotating center of the rotating mechanism; through the eccentric arrangement of the cutter head, the flexible cutter rotating of the cutter head is realized so as to facilitate special-shaped cutting;

further, the frame body comprises a base and a cover body which are detachably connected through a connecting piece, and positioning grooves are formed in the base, the cover body or the base and the cover body and used for positioning and fixing the blade;

further, the depth of the positioning groove is matched with the thickness of the blade to be 0.2 mm-2 mm;

further, the frame body is connected with the rotating mechanism through a shaft piece;

further, the rotating mechanism comprises a bearing, and the bearing is connected with the cutter seat.

The beneficial effects of the utility model are as follows:

on one hand, the cutter head is provided with a primary angle and a secondary angle, the primary angle is used for puncturing a film on a product, the secondary angle is used for cutting the film, the material brittleness requirement of the product to be cut is reduced through the primary angle and the secondary angle, and the cutting efficiency and the cutting effect are improved;

on the other hand, the frame body is arranged on the rotating mechanism, the blades are arranged on the frame body, and the cutter heads on the blades are eccentrically arranged relative to the rotating center of the rotating mechanism, so that the cutter heads can flexibly rotate the cutter so as to facilitate special-shaped cutting.

Drawings

FIG. 1 is a schematic view of a blade according to an embodiment of the present utility model;

FIGS. 2 and 3 are two side views of a polycrystalline diamond cutter according to an embodiment of the present disclosure, in the direction A-A of FIG. 1;

fig. 4 is a schematic perspective view of a frame according to an embodiment of the utility model;

FIG. 5 is a schematic side elevational view of FIG. 4;

FIG. 6 is a schematic top view of the structure of FIG. 4;

FIG. 7 is a cross-sectional view of a base according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the mounting structure of a cutting blade and copper sleeve according to an embodiment of the present utility model;

FIG. 9 is a schematic side elevational view of FIG. 8;

FIG. 10 is a schematic cross-sectional view of FIG. 8;

in the figure:

1. a blade; 11. polycrystalline diamond cutter head; 12. a cemented carbide substrate;

21. a base; 22. a cover body; 23. a hexagonal screw; 24. a positioning groove; 25. a shaft member;

3. a bearing;

4. a copper sleeve; 41. and (5) a top thread hole.

Detailed Description

In the description of the present utility model, it should be understood that terms or positional relationships indicating orientations are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model.

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

In one embodiment of the present utility model, as shown in fig. 1, the thickness of the blade 1 is 0.2 mm-2 mm, the blade 1 includes a substrate and a cutting head welded on the substrate, in this embodiment, a cemented carbide substrate 12, the cutting head is a polycrystalline diamond cutting head 11, and the polycrystalline diamond cutting head 11 is welded on the cemented carbide substrate 12. The cutting edge of the cutter head has a primary angle theta ₁ And a secondary angle theta ₂ Angle θ of one time ₁ For piercing the film on the product, the secondary angle theta ₂ For slitting the film at a first angle theta ₁ The range of (2) is 30-160 DEG, and the secondary angle theta is as follows ₂ Ranging from 60 deg. to 160 deg., fig. 2 shows the primary angle theta ₁ Less than the secondary angle theta ₂ In the case of (2), FIG. 3 shows the primary angle θ ₁ Greater than the secondary angle theta ₂ Is the case in (a).

The blade 1 of the foregoing embodiment is disposed on a blade holder to form a cutting blade, that is, the cutting blade includes a holder body, a rotation mechanism, and the blade 1. In this embodiment, as shown in fig. 4, 5 and 6, the frame body includes a base 21 and a cover 22 that are detachably connected by a connecting piece, in this embodiment, two hexagon screws 23 are used for connection and fixation, a positioning groove 24 is formed on the base 21, or a positioning groove 24 is formed on the cover 22, or corresponding positioning grooves 24 are formed on opposite sides of the base 21 and the cover 22, and the positioning groove 24 is used for positioning and fixation of the blade 1. In this embodiment, as shown in fig. 7, a positioning groove 24 is formed on the base 21, and the depth of the positioning groove 24 is 0.2 mm-2 mm, which is adapted to the thickness of the blade 1. The rotating mechanism is a bearing 3, and the base 21 is fixedly connected (for example, in interference fit) with the inner ring of the bearing 3 through a shaft piece 25 integrally formed or separately connected with the base.

The mounting piece commonly used for a cutter seat is described, the mounting piece comprises a copper sleeve 4 and a connecting rod, the connecting rod is partially sleeved in the copper sleeve 4 and is fixed by jackscrew through a jackscrew hole 41 on the circumference side of the copper sleeve 4, as shown in fig. 8, 9 and 10, after a cutter blade is mounted on a cutter frame to assemble a cutter, the inner sleeve of the outer ring of the bearing 3 is fixed in the copper sleeve 4 (for example, interference fit), for example, S-shaped cutting is performed, and the cutter performs S-shaped movement through an x axis and a z axis, so that the cutter is driven to perform cutting.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (9)

1. The utility model provides a blade, includes the base member and set up in tool bit on the base member, its characterized in that, the blade of tool bit has a primary angle and secondary angle, the scope of primary angle is 30 ~ 160, the scope of secondary angle is 60 ~ 160, and primary angle is used for puncturing the film on the product, and secondary angle is used for dividing the film.

2. The blade of claim 1, wherein the blade has a thickness of 0.2mm to 2mm.

3. The blade of claim 1 wherein the cutting tip comprises a polycrystalline diamond cutting tip.

4. The insert according to claim 1, wherein the substrate comprises a cemented carbide substrate.

5. The cutting knife is characterized by comprising a frame body, a rotating mechanism and the blade according to any one of claims 1-4, wherein one end of the frame body is arranged on the rotating mechanism, the blade is detachably arranged at the other end of the frame body, and the knife head on the blade is eccentrically arranged relative to the rotating center of the rotating mechanism.

6. The cutting burr of claim 5, wherein the frame comprises a base and a cover that are detachably connected by a connector, and positioning grooves are provided in the base, the cover, or the base and the cover, the positioning grooves being used for positioning and fixing the blade.

7. The cutting burr of claim 6, wherein the depth of the detent and the thickness of the blade are adapted to be between 0.2mm and 2mm.

8. The cutting burr of claim 5, wherein the housing is coupled to the rotation mechanism by a shaft.

9. The cutting burr of claim 5, wherein the rotation mechanism comprises a bearing.

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