A blade for cutting sheet-type laminated components

Abstract

This application relates to the field of wafer-type laminated component processing technology, and particularly to a cutting blade for wafer-type laminated components. The cutting blade includes a main blade; the main blade includes a base and a cutting edge; the base includes opposing first and second side surfaces; the cutting edge includes opposing first and second cutting surfaces; the first cutting surface includes, from top to bottom, a first oblique cutting surface, a third oblique cutting surface, and a fifth oblique cutting surface; the second cutting surface includes, from top to bottom, a second oblique cutting surface, a fourth oblique cutting surface, and a sixth oblique cutting surface; the first, third, and fifth oblique cutting surfaces are opposite to the second, fourth, and sixth oblique cutting surfaces, respectively; the fifth and sixth oblique cutting surfaces are inclined inwards and intersect at the bottom to form a pointed tip. This application solves the problems of oblique and coarse cutting by optimizing and adjusting the key dimensions and angles of the cutting edge and base, improving product quality and yield, effectively increasing production efficiency and reducing production costs.

Description

Technical Field

[0001] This application relates to the field of chip stacked element processing technology, and in particular to a chip stacked element cutting blade. Background Technology

[0002] MLCC (Multi-layer Ceramic Capacitors), also known as chip multilayer ceramic capacitors, are ceramic dielectric films with printed electrodes (internal electrodes) stacked in a staggered manner, sintered at high temperature in one go to form a ceramic chip, and then metal layers (external electrodes) are sealed at both ends of the chip, thus forming a monolithic structure, hence the name monolith capacitor.

[0003] The traditional MLCC manufacturing process includes the following steps in sequence: material preparation, casting, screen printing, stacking, lamination, cutting, glue removal, sintering, chamfering, end sealing, end burning, electroplating, testing, appearance, and tape packaging. The initial size of a single MLCC capacitor is determined in the cutting process. The function of the cutting process is to select the appropriate screen type on the cutting machine after lamination of the Bar block, input the corresponding X / Y axis pitch, and cut it into individual capacitors of the required size.

[0004] MLCC products mainly involve five elements: size, precision, material, nominal capacity, and operating voltage. However, during the cutting process, when using existing cutting blades to cut X7R-N25 material 0402 specification MLCC products, the bottom of the MLCC product will exhibit abnormal cutting angles and coarseness, affecting factors such as dimensional accuracy. Therefore, the occurrence of abnormal cutting angles and coarseness does not meet the process requirements and will result in scrapping, thus wasting materials and increasing production costs.

[0005] In summary, when using existing cutting blades to cut X7R-N25 material 0402 specification MLCC products, there will be issues such as slanted and coarse cutting at the bottom, resulting in material waste and increased production costs. Utility Model Content

[0006] To address the issues of skewed and coarse cuts at the bottom when cutting X7R-N25 material 0402 specification MLCC products using existing cutting blades, resulting in material waste and increased production costs, this application provides a cutting blade for multilayer chip components. By optimizing and improving the blade's dimensional design, it solves the skewed and coarse cut problems caused by the cutting blade squeezing the product during the cutting process.

[0007] The blade for cutting sheet-type laminated elements provided in this application includes a main blade; the main blade includes a base and a cutting edge; the base includes a first side and a second side opposite to each other, the first side and the second side extending vertically and parallel to each other; the cutting edge includes a first cutting face and a second cutting face opposite to each other, the first cutting face and the second cutting face extending downward from the bottom edge of the first side and the bottom edge of the second side, respectively; the first cutting face includes, from top to bottom, a first oblique cutting face, a third oblique cutting face, and a fifth oblique cutting face that are connected inward and inclined sequentially; the second cutting face includes, from top to bottom, a second oblique cutting face, a fourth oblique cutting face, and a sixth oblique cutting face that are connected inward and inclined sequentially; the first oblique cutting face, the third oblique cutting face, and the fifth oblique cutting face are opposite to the second oblique cutting face, the fourth oblique cutting face, and the sixth oblique cutting face, respectively; the fifth oblique cutting face and the sixth oblique cutting face intersect at the bottom, forming a tip.

[0008] The main blade has a height H of 17.3 ± 0.3 mm and a length L of 155 ± 0.3 mm. The height H1 between the first and second cutting surfaces is 2.2 ± 0.3 mm, the height H2 between the fifth and sixth oblique cutting surfaces is 0.10 ± 0.03 mm, and the sum of the heights H3 of the third and fifth oblique cutting surfaces is 0.4 ± 0.1 mm. The angle α between the fifth and sixth oblique cutting surfaces is 20 ± 2°, and the angle α1 between the third and fourth oblique cutting surfaces is 8 ± 1°. The thickness T between the first and second side surfaces is 0.15 ± 0.01 mm, and the thickness T1 between the bottom edge of the third and fourth oblique cutting surfaces is 0.09 ± 0.02 mm.

[0009] In some embodiments, the first side and the second side are axially symmetrical.

[0010] In some embodiments, the first cutting surface and the second cutting surface are axially symmetrical.

[0011] In some embodiments, the main blade is made of tungsten steel.

[0012] In some embodiments, the main blade has a square structure.

[0013] Based on the above, compared with the prior art, the blade for cutting sheet-type stacked elements provided in this application has the following advantages:

[0014] The sheet-type laminated element cutting blade provided in this application solves the problem of slanted and coarse cutting caused by the blade squeezing the product during the cutting process of the cutting machine, thereby improving the product quality and pass rate, effectively increasing production efficiency and reducing production costs.

[0015] Other features and beneficial effects of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other beneficial effects of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships in the drawings described below are based on the direction in which the components are drawn in the figures.

[0017] Figure 1 A front view of a cutting blade provided in an embodiment of this application;

[0018] Figure 2 A three-dimensional structural schematic diagram of a cutting blade provided in an embodiment of this application;

[0019] Figure 3 A side view of a cutting blade provided in an embodiment of this application;

[0020] Figure 4 for Figure 3 Magnification of the middle cutting edge Figure 1 ;

[0021] Figure 5 for Figure 3 Magnification of the middle cutting edge Figure 2 ;

[0022] Figure 6 for Figure 3 Magnification of the middle cutting edge Figure 3 .

[0023] Figure label:

[0024] 10. Base; 20. Blade edge; 30. Back of blade; 110. First side surface; 120. Second side surface; 210. First cutting edge; 211. First oblique cutting edge; 212. Third oblique cutting edge; 213. Fifth oblique cutting edge; 220. Second cutting edge; 221. Second oblique cutting edge; 222. Fourth oblique cutting edge; 223. Sixth oblique cutting edge. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The technical features designed in the different implementations of this application described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that all terms used in this application (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains, and should not be construed as limiting this application; it should be further understood that the terms used in this application should be understood to have the same meaning as those in the context of this specification and the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this application.

[0027] In this invention, directional terms such as "upper," "lower," "top," "bottom," and "vertical" are defined based on the state of the cutting blade when it is mounted on the equipment and ready to make a downward cut. The chip-type multilayer ceramic capacitor (MLCC) and other chip-type multilayer ceramic capacitors are examples of chip-type multilayer ceramic capacitors.

[0028] This application provides as follows: Figure 1-6 The cutting blade for the laminated element shown in the embodiment solves the problems of skewed and coarse cutting by optimizing and adjusting parameters such as blade size and angle, thereby improving product quality and yield, effectively increasing production efficiency and reducing production costs.

[0029] The blade of the sheet-type stacked element includes a main blade; the main blade includes a base 10 and a cutting edge 20; the base 10 includes a first side 110 and a second side 120 opposite to each other, the first side 110 and the second side 120 extending vertically and parallel to each other.

[0030] The blade portion 20 includes a first cutting surface 210 and a second cutting surface 220, which are opposite to each other. The first cutting surface 210 and the second cutting surface 220 extend downward from the bottom edge of the first side surface 110 and the bottom edge of the second side surface 120, respectively.

[0031] The first cutting edge 210 comprises, from top to bottom, a first oblique cutting edge 211, a third oblique cutting edge 212, and a fifth oblique cutting edge 213, which are connected inward and inclined. The second cutting edge 220 comprises, from top to bottom, a second oblique cutting edge 221, a fourth oblique cutting edge 222, and a sixth oblique cutting edge 223, which are connected inward and inclined. The first oblique cutting edge 211, the third oblique cutting edge 212, and the fifth oblique cutting edge 213 are respectively opposite to the second oblique cutting edge 221, the fourth oblique cutting edge 222, and the sixth oblique cutting edge 223. The fifth oblique cutting edge 213 and the sixth oblique cutting edge 223 intersect at the bottom, forming a pointed tip.

[0032] The main blade has a height H of 17.3 ± 0.3 mm and a length L of 155 ± 0.3 mm. The height H1 of the first cutting surface 210 and the second cutting surface 220 is 2.2 ± 0.3 mm; the height H2 of the fifth oblique cutting surface 213 and the sixth oblique cutting surface 223 is 0.10 ± 0.03 mm; the sum of the heights H3 of the third oblique cutting surface 212 and the fifth oblique cutting surface 213 is 0.4 ± 0.1 mm; the angle α between the fifth oblique cutting surface 213 and the sixth oblique cutting surface 223 is 20 ± 2°; the angle α1 between the third oblique cutting surface 212 and the fourth oblique cutting surface 222 is 8 ± 1°; and the thickness T between the first side surface 110 and the second side surface 120 is 0.15 ± 0.01 mm. The thickness T1 between the bottom edge of the third oblique cutting surface 212 and the bottom edge of the fourth oblique cutting surface 222 is 0.09±0.02mm.

[0033] The comparison data between the specific dimensional design of the improved embodiment and the blade design before the improvement is shown in Table 1 below:

[0034] Table 1 Blade size design of the embodiment

[0035]

[0036] Table 1 provides explanations for some of the parameters:

[0037] The top edges of the first side 110 and the second side 120 are connected by a top surface to form a blade back 30. When using the cutting blade, the blade back 30 is usually mounted on the cutting machine table with a special blade holder, so that the cutting edge 20 cuts the sheet-like laminated component products vertically downwards. In Table 1, T refers to the total thickness at the blade back 30. This thickness defines the blade thickness specification, such as 0.2mm, 0.15mm, or 0.1mm tungsten carbide blades, which refers to the blade thickness at this point. T1 refers to the blade thickness at the cutting edge (i.e., the cutting edge 20), where it cuts into the product. The thickness at this point affects the coarseness of the cut.

[0038] Specifically, such as Figure 1-2As shown, the cutting blade for the chip stacked element provided in this application is a double-edged blade, and the design concept for its various dimensions and angles is as follows:

[0039] The design optimizations a and a1 represent the angles at the cutting edge 20, which are 20±2° and 8±1° respectively. Compared to the original blade, the size of the blade is reduced by a specific angle, which reduces the resistance the blade receives during cutting and makes the cutting smoother.

[0040] The blade's total length L is designed to be 155±0.3mm, which is 2-3mm wider than the width of the product to be cut. This design ensures that the product can be completely cut while reducing the cutting deviation caused by blade deformation during the cutting process. The blade's total height H is designed to be 17.3±0.3mm. This design ensures that the cutting blade can cut all the way to the bottom of the product while preventing deformation caused by an excessively wide blade.

[0041] The blade back thickness T at point 30 is designed to be 0.15±0.01 mm. The thickness of the cutting surface formed by the third oblique cutting surface 212 and the fourth oblique cutting surface 222 is the thickness T1 of the cutting edge 20 (i.e., the thickness of the cutting edge at height H3), which is 0.09±0.02 mm. Compared to the blade before the design improvement, the thickness at specific locations on the blade is reduced by a certain dimension. This design ensures a smooth and straight cut surface after cutting, reducing the occurrence of skewed and coarse cuts. If the thickness at specific locations on the blade exceeds the range specified in this application, the blade will severely compress against the product during cutting, resulting in skewed and coarse cuts.

[0042] The design heights H1, H2, and H3 are 2.2 ± 0.3 mm, 0.10 ± 0.03 mm, and 0.4 ± 0.1 mm, respectively, defining the blade height at different positions from the cutting edge 20 to the back of the blade 30. Different thicknesses at each specific position correspond to different height parameters. This design also ensures a smooth and straight cutting surface.

[0043] In summary, the embodiments of this application have solved the problems of skewed and coarse cutting by optimizing and adjusting the blade size and angle, thereby improving product quality and product qualification rate.

[0044] Optionally, the main blade has a square structure.

[0045] Optionally, the first side 110 and the second side 120 are axially symmetrical.

[0046] Optionally, the first cutting surface 210 and the second cutting surface 220 are axially symmetrical.

[0047] Optionally, the main blade is made of tungsten carbide. The blade's primary material is tungsten carbide, which possesses excellent properties such as high temperature resistance, corrosion resistance, good toughness, non-deformation during high-speed cutting, and wear resistance.

[0048] It should be noted that:

[0049] The “inward” in this article refers to the direction in which the first side surface 110 and the second side surface 120 of the base 10 move towards each other, and the direction in which the first cutting edge 210 and the second cutting edge 220 of the base 10 move towards each other.

[0050] The blade material can also be selected from other materials with properties such as high temperature resistance, corrosion resistance, good toughness, non-deformation, and wear resistance, including but not limited to tungsten steel.

[0051] To verify the effectiveness of the embodiments of this application, the following comparison of the effects before and after the improvement is performed:

[0052] 1. The differences in the parameter design of the cutting blade before improvement (comparative experiment) and after improvement (verification experiment) are shown in Table 2 below:

[0053] Table 2

[0054]

[0055] The cutting blades shown in Table 2 for the verification experiment and comparison experiment 1-2 were used for cutting respectively:

[0056] The blade back is mounted on the cutting machine table using a special blade holder, so that the blade edge cuts X7R-N25 material 0402 specification MLCC products vertically downwards.

[0057] 2. The differences in cutting performance between the cutting blades before improvement (comparative experiment) and after improvement (verification experiment) are shown in Table 3:

[0058] Table 3

[0059]

[0060] The above verification results show that, compared with the existing improved cutting blades, the sheet-type stacked element cutting blade provided in this application solves the problems of cutting skew and coarseness by optimizing and adjusting parameters such as the size and angle of the blade.

[0061] It should be noted that:

[0062] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this application can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0063] Although this document frequently uses terms such as base, cutting edge, back of blade, first side surface, second side surface, first cutting face, first beveled cutting face, third beveled cutting face, fifth beveled cutting face, second cutting face, second beveled cutting face, fourth beveled cutting face, and sixth beveled cutting face, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this application; interpreting them as any additional limitation would contradict the spirit of this application. The terms "first," "second," etc. (if present) in the description, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cutting blade for a laminated element, characterized in that: Includes a main blade; the main blade includes a base (10) and a cutting edge (20); The base (10) includes a first side (110) and a second side (120) opposite to each other, the first side (110) and the second side (120) extending vertically and parallel to each other; The blade portion (20) includes a first blade surface (210) and a second blade surface (220) opposite to each other, the first blade surface (210) and the second blade surface (220) extending downward from the bottom edge of the first side surface (110) and the bottom edge of the second side surface (120), respectively; The first cutting edge (210) includes, from top to bottom, a first oblique cutting edge (211), a third oblique cutting edge (212), and a fifth oblique cutting edge (213) that are connected in sequence and inclined inward; the second cutting edge (220) includes, from top to bottom, a second oblique cutting edge (221), a fourth oblique cutting edge (222), and a sixth oblique cutting edge (223) that are connected in sequence and inclined inward. The first oblique cutting surface (211), the third oblique cutting surface (212), and the fifth oblique cutting surface (213) are respectively opposite to the second oblique cutting surface (221), the fourth oblique cutting surface (222), and the sixth oblique cutting surface (223); the fifth oblique cutting surface (213) and the sixth oblique cutting surface (223) are inclined inward and intersect at the bottom to form a tip; The height H of the main blade is 17.3±0.3mm, and its length L is 155±0.3mm. The height H1 of the first cutting edge (210) and the second cutting edge (220) is 2.2±0.3 mm, the height H2 of the fifth oblique cutting edge (213) and the sixth oblique cutting edge (223) is 0.10±0.03 mm, and the sum of the heights H3 of the third oblique cutting edge (212) and the fifth oblique cutting edge (213) is 0.4±0.1 mm; The angle α between the fifth oblique cutting surface (213) and the sixth oblique cutting surface (223) is 20±2°, and the angle α1 between the third oblique cutting surface (212) and the fourth oblique cutting surface (222) is 8±1°. The spacing thickness T between the first side surface (110) and the second side surface (120) is 0.15±0.01 mm, and the spacing thickness T1 between the bottom edge of the third oblique cutting surface (212) and the bottom edge of the fourth oblique cutting surface (222) is 0.09±0.02 mm.

2. The cutting blade for sheet-type laminated components according to claim 1, characterized in that: The first side (110) and the second side (120) are axially symmetrical.

3. The cutting blade for sheet-type laminated components according to claim 1, characterized in that: The first cutting edge (210) and the second cutting edge (220) are axially symmetrical.

4. The cutting blade for sheet-type laminated components according to claim 1, characterized in that: The main blade is made of tungsten steel.

5. The cutting blade for sheet-type laminated components according to claim 1, characterized in that: The main blade has a square structure.

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