MLCC single-edge cutting knife

Abstract

The utility model discloses an MLCC single-edge cutting knife, and belongs to the field of chip capacitor production. The MLCC single-edge cutting knife comprises a metal plate, and further comprises an edging face and a straight face which are arranged on the left side and the right side of the metal plate respectively, a diagonal plane is arranged at the lower end of the edging face, and the bottom of the diagonal plane and the bottom of the straight face are collinear to form a cutting edge; according to the utility model, the inertia displacement influence caused by the cutting speed in the cutting operation process can be effectively eliminated, so that the product is not easy to be cut obliquely.

Description

Technical Field

[0001] The utility model relates to the technical field of chip capacitor production, in particular to an MLCC single-edge cutting knife. Background Art

[0002] Chip capacitors are made of ceramic dielectric diaphragms with printed electrodes (inner electrodes) stacked in an offset manner, sintered at a high temperature once to form a ceramic chip, and then sealed with a metal layer (outer electrode) at both ends of the chip to form a monolithic structure, so it is also called a monolithic capacitor.

[0003] When electronic components such as MLCC are cut into green embryos using cutting equipment, there will be a certain expulsion effect between the front and back of the equipment due to the high-speed operation of the equipment. There will be a certain force when the cutting knife contacts the product, which will cause the cutting knife to have a horizontal force moving toward the platform during the cutting process, and a downward cutting force perpendicular to the cutting. Under the action of these two factors, the cutting knife will cause the product to be cut obliquely when cutting. The design concept of the tooling of the utility model is to solve the process of front and back position expulsion during the cutting process. The expulsion will not be offset by the force received by the cutting machine during the movement, thereby eliminating the inertial expulsion effect caused by the cutting speed during the cutting operation. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that a product may be cut obliquely when a cutting knife cuts downward, and proposes a MLCC single-edge cutting knife.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A MLCC single-edge cutting knife comprises a metal plate, and also comprises: a sharp edge surface and a straight surface, which are respectively arranged on the left and right sides of the metal plate, wherein a chamfered surface is arranged at the lower end of the sharp edge surface, and the chamfered surface and the bottom of the straight surface are colinear to form a blade.

[0007] In order to make the cutting blade more evenly stressed, preferably, the side wall of the metal plate is provided with a transition surface, and the transition surface is opened between the sharpened surface and the beveled surface.

[0008] In order to make the force on the transition surface more uniform, further, the shape of the transition surface is an arc surface.

[0009] In order to make it more convenient for processing personnel to process the cutting knife, further, the shape of the transition surface is a plane.

[0010] In order to ensure the use strength of the cutting knife, preferably, the metal plate is made of tungsten steel.

[0011] In order to ensure the cutting efficiency of the cutting knife, preferably, the angle between the beveled surface and the straight surface is 15°-35°.

[0012] Compared with the prior art, the utility model provides a MLCC single-edge cutting knife, which has the following beneficial effects:

[0013] The MLCC single-edge cutting knife only sharpens one side and does not sharpen the other side, thereby eliminating the inertial crowding effect caused by the cutting speed during the cutting process, making it less likely for the product to be cut obliquely. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the axonometric structure of a MLCC single-edge cutting knife proposed by the utility model from a first perspective;

[0015] Figure 2 This is a schematic diagram of the axonometric structure of a MLCC single-edge cutting knife proposed by the utility model from a second perspective;

[0016] Figure 3 This is a right-side structural schematic diagram of an MLCC single-edge cutting knife proposed by the utility model;

[0017] Figure 4 It is a right view structural schematic diagram of a cutting knife in the prior art.

[0018] In the figure: 1. Metal plate; 2. Straight surface; 3. Sharpened surface; 4. Beveled surface; 5. Transition surface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Embodiment 1:

[0022] Reference Figure 1-Figure 3, an MLCC single-edge cutting knife, comprising a metal plate 1 fixed on a cutting device, the material of the metal plate 1 being tungsten steel, and further comprising: a cutting edge 3 and a straight surface 2 parallel to each other, respectively arranged on the left and right sides of the metal plate 1, wherein a chamfered surface 4 is arranged at the lower end of the cutting edge 3, and the chamfered surface 4 and the bottom of the straight surface 2 are colinear to form a cutting edge;

[0023] When cutting the green embryo, the cutting device drives the metal plate 1 to move downward to complete the cutting. During the cutting process, the chamfered surface 4 and the blade at the bottom of the straight surface 2 complete the cutting of the green embryo. Since only one side of the lower end of the metal plate 1 is provided with the chamfered surface 4, that is, one side is sharpened and the other side is not sharpened, the inertial crowding effect caused by the cutting speed during the cutting operation is eliminated, making it less likely that the product will be cut obliquely.

[0024] The side wall of the metal plate 1 is provided with a transition surface 5, which is opened between the cutting surface 3 and the chamfered surface 4. The shape of the transition surface 5 is an arc surface. The transition surface 5 can make the blade smoother and the force more uniform. Since the chamfered surface 4 is an inclined surface, the arc surface can make the transition surface 5 more uniformly stressed.

[0025] The angle between the chamfered surface 4 and the straight surface 2 is 15°-35°. In the present application, the preferred angle is 25°, which can ensure the cutting efficiency of the cutting knife.

[0026] like Figure 4 As shown, in the prior art, both sides of the cutting blade are sharpened, and the angle of the blade is twice that of the present application.

[0027] Embodiment 2:

[0028] Furthermore, the side wall of the metal plate 1 is provided with a transition surface 5, which is opened between the sharpening surface 3 and the beveled surface 4. The shape of the transition surface 5 is a plane. The transition surface 5 can make the blade smoother and the force more uniform. The plane can make it easier for the processing personnel to process the cutting knife compared to the arc surface.

[0029] When the MLCC single-edge cutting knife cuts the green embryo, the cutting device drives the metal plate 1 to move downward to complete the cutting. During the cutting process, the chamfered surface 4 and the blade at the bottom of the straight surface 2 complete the cutting of the green embryo. Since only one side of the lower end of the metal plate 1 is provided with the chamfered surface 4, that is, one side is sharpened, and the other side is not sharpened, the inertial crowding effect caused by the cutting speed during the cutting operation is eliminated, so that the product is not prone to bevel cutting.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An MLCC single-edge cutting knife, comprising a metal plate (1), characterized in that: Also includes: The sharpened surface (3) and the straight surface (2) are respectively arranged on the left and right sides of the metal plate (1). Wherein, a chamfered surface (4) is provided at the lower end of the cutting surface (3), and the chamfered surface (4) and the bottom of the straight surface (2) are colinear to form a cutting edge; The side wall of the metal plate (1) is provided with a transition surface (5), and the transition surface (5) is opened between the edge surface (3) and the chamfered surface (4).

2. The MLCC single-edge cutting knife according to claim 1, characterized in that: The transition surface (5) is in the shape of an arc surface.

3. The MLCC single-edge cutting knife according to claim 1, characterized in that: The transition surface (5) is in the shape of a plane.

4. The MLCC single-edge cutting knife according to claim 1, characterized in that: The material of the metal plate (1) is tungsten steel.

5. The MLCC single-edge cutting knife according to claim 1, characterized in that: The included angle between the chamfered surface (4) and the straight surface (2) is 15°-35°.

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