Alloy tip blade and manufacturing method thereof, and blade automatic polishing apparatus

Abstract

The application discloses an alloy blade tip, a manufacturing method thereof and a blade automatic polishing device, and is applied to the technical field of trapezoidal blade tips, and has the technical scheme as follows: a blade body and a mounting hole arranged on the blade body are included; the blade body is characterized in that an installation groove is arranged on the upper portion of the blade body, and an alloy blade tip is fixedly connected in the installation groove in a welding mode; and the alloy blade tip has the technical effects that the service life is long and the manufacturing cost is low.

Description

Technical Field

[0001] This invention relates to the field of blade technology, and in particular to an alloy blade tip, its manufacturing method, and an automatic blade sharpening device. Background Technology

[0002] Utility blades are widely used in artistic creation, industrial cutting, model making, and daily life, and their performance directly affects cutting efficiency and quality. Most existing utility blades are still limited to a single-edged design and are often made of a single material. They have thin blades, long blades, and are prone to tip wear, resulting in a short lifespan and limiting their flexibility. They also require regular replacement. While using alloy materials to create trapezoidal blades could improve performance to some extent, it would also increase manufacturing costs and make it difficult to meet the needs of various applications, thus necessitating improvement. Summary of the Invention

[0003] The primary objective of this invention is to provide an alloy cutting edge blade, which has the advantages of long service life and low manufacturing cost.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an alloy cutting edge blade, comprising a blade body and a mounting hole formed on the blade body; a mounting groove is formed on the blade body, and an alloy cutting edge is fixedly connected to the mounting groove by welding.

[0005] The present invention is further configured such that: the blade is a trapezoidal structure, a parallelogram structure, a triangular structure, or a combination of two trapezoids, and the mounting groove is formed at the acute angle of the blade.

[0006] The present invention is further configured such that: the length of the alloy blade is between 5-25mm, and the thickness of the blade body is between 1-3mm.

[0007] The present invention is further configured such that the cutting edge of the alloy blade is flush with or protrudes from the edge of the blade body.

[0008] The second objective of this invention is to provide a method for manufacturing alloy cutting blades, which has the advantages of long service life and low manufacturing cost.

[0009] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a method for manufacturing an alloy cutting edge insert, using an alloy cutting edge insert as described in any of the above technical solutions; comprising: Step 1: Stamp the base material sequentially onto the square material plate. The base material is composed of at least 3 blades that are staggered and overlap at the waist. Step 2: Stack several stamped substrates, position the stacked substrates in the positioning fixture on the wire cutting table, and fix the substrates with pressure blocks; Step 3: Use wire EDM to perform multi-wire processing on several stacked substrates to divide the substrates into multiple blades; Step 4: Grind the edges of the blade to remove burrs; Step 5: Use a laser to cut out the alloy cutting edge, and then weld and fix the cut alloy cutting edge into the mounting groove.

[0010] The present invention is further configured to cut no more than 24 substrates in a single wire cutting operation.

[0011] The present invention is further configured such that: the substrate is composed of 3 blades, and the positioning fixture includes a first positioning part for positioning the four corners of the substrate and a second positioning part for positioning the 3 sets of positioning holes on the substrate.

[0012] The present invention is further configured such that the spacing between adjacent substrates along the stamping direction is not greater than 4 mm and not less than 1.5 mm.

[0013] The third objective of this invention is to provide an automatic blade sharpening device, which has the advantage of high sharpening efficiency.

[0014] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic blade grinding device, applied to a disc clamp as described in the above technical solution; comprising a grinding base and a plurality of rotating mounting plates rotatably connected to the grinding base at intervals, wherein a pin fixing assembly for fixing the rotating mounting plates is fixedly connected to the grinding base, and a first grinding block for grinding the surface of a trapezoidal blade is fixedly connected to the upper and lower surfaces of the rotating mounting plates, and a second grinding block for grinding the side wall of the trapezoidal blade is fixedly connected to the side wall of the grinding base located between adjacent rotating mounting plates, wherein a mounting shaft for mounting the disc clamp and a rotary drive motor for driving the mounting shaft to rotate to achieve grinding are rotatably connected to the grinding base, a support plate is fixedly connected to the bottom of the mounting shaft, the plurality of disc clamps are sleeved and connected to the mounting shaft and adjacent disc clamps are separated by a positioning support sleeve, and a locking nut for fixing the plurality of disc clamps to the mounting shaft is rotatably connected to the top of the mounting shaft.

[0015] The present invention is further configured such that: the pin fixing assembly includes a first pin fixing hole and a second pin fixing hole respectively formed along the vertical direction on the rotary mounting plate and the grinding base; the first pin fixing hole and the second pin fixing hole are connected by a pin fixing shaft; and both the first grinding block and the second grinding block are fixedly connected to the rotary mounting plate and the grinding base by locking screws.

[0016] In summary, the present invention has the following beneficial effects: 1. By opening mounting holes at both ends of the blade and fixing alloy cutting heads in the mounting holes, the service life of the blade is extended due to the better hardness and wear resistance of the alloy cutting heads. The double-sided alloy cutting head design allows the blade to cut efficiently in different directions, improving work efficiency, meeting various cutting needs, and making operation more flexible. In addition, since there is no cutting edge on the blade, the safety performance is also improved to a certain extent. 2. During the blade processing, three blades are interlaced to form a base material, which is then stamped out using a stamping process. The spacing between adjacent base materials along the stamping direction is set between 1.5-4mm. Due to the trapezoidal structure of the blade, the sides of the blade will be worn out. By stamping out the base material in a single operation, the average wear of a single blade is greatly reduced. By stacking several base materials and using wire cutting for multi-wire processing, multiple blades can be processed at once, which greatly improves processing efficiency and reduces processing wear. At the same time, multi-wire processing can also adapt to the processing requirements of blades with different shapes, reducing manufacturing costs. 3. An automatic blade grinding device includes several rotating mounting plates rotatably connected to a grinding base, which are fixedly connected to the grinding base based on a pin-fixing assembly. Several disc clamps are spaced and connected to a mounting shaft. When grinding several alloy cutting edges on the disc clamps, the disc clamps are positioned in the gaps between adjacent rotating mounting plates. The surface of the trapezoidal alloy cutting edge is ground by a first grinding block, and the sidewalls of the trapezoidal alloy cutting edge are ground by a second grinding block. This allows for simultaneous grinding of multiple cutting edges within multiple disc clamps. The trapezoidal alloy cutting edge is ground, which greatly increases the grinding efficiency of the blade. On the other hand, since the first and second grinding blocks will wear during the grinding process, when replacement is needed, the rotating mounting plate can be freely rotated by pulling out the pin shaft. This makes it easy to replace the first grinding disc on the surface and bottom of the rotating mounting plate. The second grinding disc, which is located on the side wall of the grinding base, can be replaced by rotating the rotating mounting plate to a position away from the grinding. This improves the convenience of grinding disc replacement while ensuring full utilization of space. The structure is simple. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the alloy cutting edge blade of Example 1; Figure 2 This is a schematic diagram of the structure of the substrate in Example 5; Figure 3 This is a schematic diagram of the positioning fixture in Example 5; Figure 4 This is a schematic diagram of the alloy cutting edge blade of Example 2; Figure 5This is a schematic diagram of the alloy cutting edge blade of Example 3; Figure 6 This is a schematic diagram of the alloy cutting edge blade of Example 4; Figure 7 This is a schematic diagram of the structure of the substrate used in Example 2; Figure 8 This is a schematic diagram of the structure of the substrate used in Example 3; Figure 9 This is a schematic diagram of the structure of the substrate used in Example 4; Figure 10 This is a schematic diagram of the automatic blade sharpening device used in Example 6; Figure 11 This is a structural cross-sectional view of the automatic blade sharpening device used in Example 7.

[0018] Reference numerals: 1. Blade; 2. Mounting hole; 3. Mounting groove; 4. Alloy cutting edge; 5. Square material plate; 6. Base material; 7. Positioning fixture; 71. First positioning part; 72. Second positioning part; 9. Grinding base; 91. Rotary mounting plate; 92. Pin fixing assembly; 921. First pin fixing hole; 922. Second pin fixing hole; 923. Pin fixing shaft; 93. First grinding block; 94. Second grinding block; 95. Mounting shaft; 96. Rotary drive motor; 97. Support plate; 98. Positioning support sleeve; 99. Locking nut. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example 1: refer to Figure 1 An alloy blade tip includes a trapezoidal blade body 1 and a mounting hole 2 on the upper bottom of the blade body 1. The lower bottom of the blade body 1 has symmetrical mounting grooves 3 at both ends. An alloy blade tip 4 is fixedly connected to the mounting grooves 3 by welding. Both the alloy blade tip 4 and the blade body 1 are made of cemented carbide, which reduces the cost of use while ensuring structural strength. The length of the alloy blade tip 4 is between 5-25mm, and the thickness of the blade body 1 is between 1-3mm. The cutting edge of the alloy blade tip 4 is flush with or protrudes from the lower bottom edge and waist edge of the blade body 1, thereby preventing the blade body 1 from directly contacting materials during use and causing damage to the blade body 1.

[0021] Example 2: refer to Figure 5 In this embodiment, the blade is parallelogram-shaped, the mounting groove is located at the two acute angles of the blade, and there are two sets of mounting holes, which are respectively opened on the upper and lower sides of the blade.

[0022] Example 3: refer to Figure 6 In this embodiment, the blade is triangular in shape, with each of the three included angles being 60°. The mounting grooves are located at the three included angles of the blade, and three sets of mounting holes are provided, which are respectively opened on the three sides of the blade.

[0023] Example 4: refer to Figure 7 In this embodiment, the blade is a double trapezoidal combination structure, which is formed by joining the two upper bases of two isosceles trapezoids. The mounting groove is set at the four acute angles of the blade, and the mounting holes are provided in two sets, which are respectively opened on the upper and lower sides of the blade.

[0024] Example 5: refer to Figures 2 to 3 , Figures 7 to 9 A method for manufacturing an alloy cutting edge insert, using an alloy cutting edge insert as shown in Example 1, comprising: Step 1: Stamp the base material 6 sequentially on the square material plate 5. The base material 6 is composed of at least 3 blades 1 arranged in an interlaced manner with overlapping waist edges. Step 2: Stack up no more than 24 substrates 6 cut and stamped, position the stacked substrates 6 in the positioning fixture 7 on the wire cutting table, and fix the substrates 6 with pressure blocks; Step 3: Use wire cutting to perform multi-wire processing on several stacked substrates 6 to divide the substrates 6 into multiple blades 1; Step 4: Grind the edges of blade 1 to remove burrs; Step 5: Use a laser to cut out the alloy cutting edge 4, and weld and fix the cut alloy cutting edge 4 into the mounting groove 3; Step 6: Grind the alloy cutting edge 4 of the welded trapezoidal blade.

[0025] Specifically, the substrate 6 is composed of three blades 1. The positioning fixture 7 includes a first positioning part 71 for positioning the four corners of the substrate 6 and a second positioning part 72 for positioning the substrate 6 with three sets of positioning holes. The first positioning part 71 and the second positioning part 72 achieve complete positioning of the substrate 6, ensuring the accuracy of wire cutting. The distance between adjacent substrates 6 along the stamping direction is not greater than 4mm and not less than 1.5mm, preferably 2mm, thereby reducing material loss during the stamping process.

[0026] Example 6: refer to Figures 10 to 11An automatic blade sharpening device is applied to a disc clamp as shown in Example 6 for sharpening alloy blade tip 4 blades as shown in Examples 1-4. The device includes a sharpening base 9 and several rotating mounting plates 91 rotatably connected to the sharpening base 9 at intervals. Pin fixing assemblies 92 for fixing the rotating mounting plates 91 are fixedly connected to the sharpening base 9. First sharpening blocks 93 for grinding the surface of trapezoidal blades are fixedly connected to the upper and lower surfaces of the rotating mounting plates 91. The sharpening base 91 is located between adjacent rotating mounting plates 91. A second grinding block 94 for grinding the sidewall of the trapezoidal blade is fixedly connected to the sidewall. A mounting shaft 95 for mounting the disc clamps and a rotary drive motor 96 for rotating the mounting shaft 95 to achieve grinding are also rotatably connected to the grinding base 9. A support plate 97 is fixedly connected to the bottom of the mounting shaft 95. Several disc clamps are sleeved and connected to the mounting shaft 95, and adjacent disc clamps are separated by positioning support sleeves 98. A locking nut 99 for fixing several disc clamps to the mounting shaft 95 is rotatably connected to the top of the mounting shaft 95. In this embodiment, the disc clamp includes a circular clamp body and a mounting hole coaxially located at the center of the clamp body for engaging with a mounting shaft. Several positioning grooves for positioning alloy cutting blades are evenly distributed along the circumference of the clamp body. Several locking holes that engage with the positioning grooves are also distributed along the circumference of the disc body. Locking screws are used to position and fix the alloy cutting blades within the positioning grooves, facilitating disassembly and installation. By positioning and fixing the alloy cutting blades within the positioning grooves, it is easy to weld and fix the alloy cutting edge to the mounting groove of the blade body. Furthermore, multiple trapezoidal cutting blades can be simultaneously ground using a grinding machine, significantly improving the production efficiency of trapezoidal cutting blades.

[0027] The pin fixing assembly 92 includes a first pin fixing hole 921 and a second pin fixing hole 922 respectively opened in the vertical direction on the rotary mounting plate 91 and the grinding base 9. The first pin fixing hole 921 and the second pin fixing hole 922 are connected by a pin fixing shaft 923. The first grinding block 93 and the second grinding block 94 are both fixedly connected to the rotary mounting plate 91 and the grinding base 9 by locking screws.

[0028] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic blade sharpening device, used to manufacture an alloy blade tip, the alloy blade tip comprising a blade body (1) and a mounting hole (2) formed on the blade body (1), a mounting groove (3) formed on the blade body (1), an alloy blade tip (4) fixedly connected in the mounting groove (3) by welding, the blade body (1) having a trapezoidal structure, a parallelogram structure, a triangular structure, or a double trapezoidal combination structure, the mounting groove (3) being formed at the acute angle of the blade body (1), the alloy blade tip (4) having a length between 5-25mm, the thickness of the blade body (1) being between 1-3mm, and the cutting edge of the alloy blade tip (4) being flush with or protruding from the edge of the blade body (1); characterized in that, The device includes a grinding base (9) and several rotating mounting plates (91) rotatably connected to the grinding base (9) at intervals. A pin fixing assembly (92) for fixing the rotating mounting plates (91) is fixedly connected to the grinding base (9). First grinding blocks (93) for grinding the surface of trapezoidal blades are fixedly connected to both the upper and lower surfaces of the rotating mounting plates (91). Second grinding blocks (93) for grinding the sidewalls of the trapezoidal blades are fixedly connected to the sidewalls of the grinding base (9) located between adjacent rotating mounting plates (91). The grinding block (94) is rotatably connected to the grinding base (9), which is a mounting shaft (95) for mounting disc clamps and a rotary drive motor (96) for rotating the mounting shaft (95) to achieve grinding. A support plate (97) is fixedly connected to the bottom of the mounting shaft (95). Several disc clamps are sleeved and connected to the mounting shaft (95) and adjacent disc clamps are separated by positioning support sleeves (98). A locking nut (99) for fixing several disc clamps to the mounting shaft (95) is rotatably connected to the top of the mounting shaft (95).

2. The automatic blade sharpening device according to claim 1, characterized in that, The pin fixing assembly (92) includes a first pin fixing hole (921) and a second pin fixing hole (922) respectively opened in the vertical direction on the rotating mounting plate (91) and the grinding base (9). The first pin fixing hole (921) and the second pin fixing hole (922) are connected by a pin fixing shaft (923). The first grinding block (93) and the second grinding block (94) are both fixedly connected to the rotating mounting plate (91) and the grinding base (9) by locking screws.

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