A method of manufacturing a scissor blade

Abstract

The application discloses a manufacturing method of scissors blades, which comprises the following steps: S001: determining the area of the first and second blades in a metal plate and punching the first and second shaft holes; S002: removing the waste material on the back side of the first and second blades; S003: removing the waste material on the cutting edge side of the first and second blades; S004: punching the concave-convex surface in the middle of the first and second blades, and forming the first and second concave surfaces on the upper surfaces of the first and second blades respectively, and forming the first and second convex surfaces on the lower surfaces of the first and second blades respectively; S005: punching the first and second contact-avoiding grooves on the upper surfaces of the first and second blades respectively to form the first and second convex platforms respectively; S006: flattening the first and second blades; S007: twisting the first and second blades respectively, so that the edges of the first and second cutting edges are twisted; S008: processing the profiled lower surfaces of the first and second blades into complete planes without concave-convex surfaces; and S009: punching the head-tail connecting waste material of the first and second blades to complete the manufacturing.

Description

Technical fields:

[0001] This invention relates to the field of scissor product technology, and specifically to a method for manufacturing scissor blades. Background technology:

[0002] Scissors are a common tool in daily life, mainly used for cutting sheet-like or wire-like objects such as cloth, paper, steel plates, ropes, and round steel bars. They are double-edged tools with two interlocking blades that can be opened and closed to cut objects. Specifically, common scissors consist of two hinged blades and a handle attached to the rear of the blades. Each blade has a cutting edge on one side. When using them, the handle is held, and opening or closing it opens or closes the blades. During the closing process, a shearing force is generated between the two blades, cutting the corresponding object.

[0003] Chinese utility model patent No. 202223106006.6 discloses a scissor structure, which includes a first scissor blade, a second scissor blade, and a sliding device. (This is in conjunction with the appendix of the patent.) Figure 1-2 As shown, both the first and second scissor blades are flat and have blades. Both blades also have shaft holes. The manufacturing of these blades is very simple; they can be directly fabricated on a metal plate according to the shape of the scissor blades, with shaft holes and blades added. However, since the first and second blades are manufactured separately, the process is time-consuming and inefficient. Furthermore, the resulting scissors suffer from insufficient adhesion between the blades during cutting, leading to relatively difficult cutting and less comfortable use.

[0004] In view of the above, the inventors propose the following technical solution. Summary of the Invention:

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for manufacturing scissor blades.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The manufacturing method of the scissor blade includes the following steps: SOO1: First, determine the area in the metal plate for assembling the first blade and the second blade of the scissors, and simultaneously punch the first shaft hole of the first blade and the second shaft hole of the second blade in the area; SOO2: Simultaneously punch and remove the waste material on the back side of the first blade and the second blade in the area of ​​the first blade and the second blade; SOO3: Simultaneously punch and remove the waste material on the cutting edge side of the first blade and the second blade in the area of ​​the first blade and the second blade to form the outline shape of the first blade and the second blade, which are respectively equipped with a first cutting edge and a second cutting edge and are separated from each other, and the head and tail of the outline shape of the first blade and the second blade are connected to the metal plate; SOO4: Punch concave and convex surfaces in the middle of the outline shape of the first blade and the second blade, wherein the upper surface of the outline shape of the first blade and the second blade is respectively formed with a first concave surface and a second concave surface. SOO5: The lower surfaces of the contour shapes of the first and second blades are respectively formed with a first convex surface and a second convex surface; SOO6: The contour shapes of the first and second blades are flattened; SOO7: The contour shapes of the first and second blades are twisted so that the edges of the first and second cutting edges are twisted; SOO8: The first convex surface and the second convex surface of the lower surface of the contour shapes of the first and second blades are polished so that the lower surface of the contour shapes of the first and second blades is a complete flat surface without concavity or convexity; SOO9: The head and tail connecting waste of the contour shapes of the first and second blades are punched to separate them from the metal plate to form independent first and second blades, thus completing the manufacturing process.

[0007] Furthermore, in the above technical solution, after step SOO3 and before step SOO4, the edges of the back of the first blade and the second blade are chamfered, so that the backs of the first blade and the second blade are respectively formed with a first chamfered surface and a first chamfered surface to prevent scratching the human body.

[0008] Furthermore, in the above technical solution, the metal plate is fed in a progressive manner. When the metal plate is forward to the N+1th station, and the first and second blades of the previous set after completing step SOON processing at the Nth station are performing step SOON N+1 processing, the material on the back side of the metal plate is sent to the Nth station and completes step SOON processing. Here, N is a positive integer, and N is at least 1.

[0009] Furthermore, in the above technical solution, the metal plate is a stainless steel plate; the first blade and the second blade are 180 degrees rotationally symmetrical and have the same structure.

[0010] Furthermore, in the above technical solution, the first concave surface of the first blade extends to the side of the first boss, the first shaft hole passes through the first concave surface, and the first boss is formed between the first concave surface and the first contact clearance groove; the second concave surface of the second blade extends to the side of the second boss, the second shaft hole passes through the second concave surface, and the second boss is formed between the second concave surface and the second contact clearance groove.

[0011] Furthermore, in the above technical solution, both the first boss and the second boss are arc-shaped, so that the first blade and the second blade are always in close contact during the opening or closing process.

[0012] Furthermore, in the above technical solution, a first engagement plane is formed between the first concave opening edge of the first blade and the first cutting edge, and a second engagement plane is formed between the second concave opening edge of the second blade and the second cutting edge. During the process of the first blade and the second blade being hinged to form scissors and closing with each other to achieve cutting, the first engagement plane and the second engagement plane are attached to each other and engage.

[0013] Furthermore, in the above technical solution, the width of both the first occlusal plane and the second occlusal plane is 0.8-1.2mm.

[0014] Furthermore, in the above technical solution, the width of both the first occlusal plane and the second occlusal plane is 1mm.

[0015] Furthermore, in the above technical solution, the radius of the arc of the first blade edge twist is 120-150mm; the radius of the arc of the second blade edge twist is 120-150mm, so that the first biting plane and the second biting plane are always closely attached and engaged with each other during the opening or closing process of the first blade and the second blade.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] 1. This invention enables the simultaneous production of the first and second blades, resulting in extremely high work efficiency and a 50% reduction in the production cycle, giving it a highly competitive market position.

[0018] 2. The first blade and the second blade made by the present invention have a first concave surface and a second concave surface, respectively. After the first blade and the second blade are hinged to form scissors, the first concave surface of the first blade and the second concave surface of the second blade are connected, so that the area of ​​the inner surface of the first blade and the second blade after they are attached to each other is reduced, thereby ensuring that the first blade and the second blade are more closely attached, cutting is relatively more difficult, and it is easier to cut objects, making it more comfortable to use.

[0019] 3. When the first and second blades are made into scissors, the edges of both blades are twisted. This twists the side of the first blade, causing it to protrude beyond the inner surface of the first blade, and the same applies to the second blade. With this structure, when the first and second blades are closed relative to each other to cut an object, the closer the first and second blades are to the tip (i.e., the front end), the tighter they fit together. This ensures that the first and second blades can interlock firmly, making it easier to cut the object. While cutting requires less effort, it is more comfortable to operate. Simultaneously, the tips of both blades can also easily cut through objects, making them more convenient to use.

[0020] 4. The outer surfaces (i.e., lower surfaces) of both the first and second blades are set as a complete, flat plane without any bumps or depressions, making them more aesthetically pleasing.

[0021] 5. When the first and second blades are made into scissors, the first boss and the second boss fit together to form a contact point. This contact point is located on the rear side of the hinge, so that the first shaft hole of the first blade and the second shaft hole of the second blade no longer contact each other and do not serve as a contact point. That is, the contact point is moved to the rear side of the hinge, which can better secure the first and second blades, making the first and second blades mesh more tightly. Moreover, when the first and second blades are opened, the roots of the first and second blades also mesh tightly, thereby ensuring that the roots of the first and second blades can also cut or sever objects well, and that cutting is more labor-intensive. At the same time, it can also prevent the first and second blades from becoming loose when the angle between them is too large, thus ensuring the quality of the entire pair of scissors and giving the invention a strong market competitiveness. Attached image description:

[0022] Figure 1 This is a step diagram of the present invention;

[0023] Figure 2 This is a perspective view of the first and second blades in this invention;

[0024] Figure 3 This is a perspective view of the first and second blades in this invention from another angle;

[0025] Figure 4 This is an exploded perspective view of the first and second blades in this invention;

[0026] Figure 5 This is a perspective view of the second blade in this invention;

[0027] Figure 6 yes Figure 3 A sectional view along the BB direction;

[0028] Figure 7 yes Figure 6 A magnified view of part A in the middle;

[0029] Figure 8 yes Figure 2 A sectional view along direction AA;

[0030] Figure 9 yes Figure 8 Exploded view;

[0031] Figure 10 This is a diagram showing the state in which the first and second blades of this invention are closed together to perform shearing. Detailed implementation method:

[0032] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0033] This invention relates to a method for manufacturing a scissor blade, which includes the following steps:

[0034] SOO1: First, determine the area in the metal plate used to assemble the first and second blades of the scissors, and simultaneously punch the first shaft hole of the first blade and the second shaft hole of the second blade in that area.

[0035] SOO2: Simultaneously punch and remove waste material from the back sides of the first and second blades in the area of ​​the first and second blades;

[0036] SOO3: Simultaneously punch and remove the waste material from the cutting edge sides of the first and second blades in the area of ​​the first blade and the second blade to form the outline shape of the first blade and the second blade, which are separated from each other and have the first blade and the second blade respectively. The outline shape of the first blade and the second blade is connected to the metal plate at both ends.

[0037] SOO4: The middle part of the outline of the first blade and the second blade is punched with concave and convex surfaces, wherein the upper surface of the outline of the first blade and the second blade is respectively formed with a first concave surface and a second concave surface, and the lower surface of the outline of the first blade and the second blade is respectively formed with a first convex surface and a second convex surface.

[0038] SOO5: The first contact clearance groove and the second contact clearance groove are punched on the upper surface of the contour shape of the first blade and the second blade respectively, so that the upper surface of the contour shape of the first blade and the second blade are respectively formed with a first boss and a second boss.

[0039] SOO6: Flatten the outline of the first and second blades;

[0040] SOO7: Twist the contours of the first and second blades respectively, so that the edges of both the first and second blades are twisted;

[0041] SOO8: Grind the first and second convex surfaces on the lower surfaces of the contour shapes of the first and second blades so that the lower surfaces of the contour shapes of the first and second blades are both complete flat surfaces without concavity or convexity.

[0042] SOO9: The outline of the first and second blades is punched to connect the head and tail scraps, so as to separate them from the metal plate to form independent first and second blades, thus completing the manufacturing process.

[0043] See Figure 1-10As shown, this invention enables the simultaneous production of the first and second blades, resulting in extremely high work efficiency and a 50% reduction in the production cycle, giving it a highly competitive market position. Furthermore, the first and second blades produced by this invention each have a first concave surface and a second concave surface, respectively. After the first and second blades are hinged together to form scissors, the first concave surface of the first blade and the second concave surface of the second blade align, reducing the area of ​​the inner surfaces of the first blade 1 and the second blade 2 after they are fitted together. This ensures a tighter fit between the first blade 11 and the second blade 21, making cutting relatively more labor-intensive and easier, and resulting in a more comfortable user experience. Meanwhile, the edges of both the first and second cutting edges are twisted; the side of the first cutting edge 11 is twisted and protrudes beyond the inner surface of the first blade 1, and the side of the second cutting edge 21 is twisted and protrudes beyond the inner surface of the second blade 2. With this structure, when the first and second blades 1 and 2 are relatively closed to cut an object, the closer the first and second blades 1 and 2 are to the blade tip (i.e., the front end), the tighter they fit together, ensuring that the first cutting edge 11 and the second cutting edge 21 can tightly interlock, making it easier to cut the object. Cutting requires less effort but is more comfortable to operate. Simultaneously, the blade tips of the first and second blades 1 and 2 can also easily cut the object, making them more convenient to use. The outer surfaces (i.e., the lower surfaces) of both the first and second blades 1 and 2 are set as a complete, flat plane without any bumps or depressions, resulting in a more aesthetically pleasing appearance. Furthermore, when the first blade 1 and the second blade 2 are made into scissors, the first boss 14 and the second boss 24 are fitted together to form a contact point. This contact point is located on the rear side of the hinge 3, so that the first shaft hole 101 of the first blade 1 and the second shaft hole 201 of the second blade 2 no longer contact each other and do not serve as a contact point. That is, the contact point is moved to the rear side of the hinge 3, which can better secure the first blade 1 and the second blade 2, making the first blade 11 and the second blade 12 mesh more tightly. Moreover, when the first blade 1 and the second blade 2 are opened, the root of the first blade 11 and the root of the second blade 12 also mesh tightly, thereby ensuring that the root of the first blade 11 and the root of the second blade 12 can also cut or sever objects well, and it is more difficult to cut. At the same time, it can also avoid the phenomenon that the first blade 1 and the second blade 2 will not loosen when the angle between them is too large, thereby ensuring the quality of the entire scissors and making the present invention highly competitive in the market.

[0044] After step SOO3 and before step SOO4, the edges of the back of the first and second blades are chamfered, forming chamfered surfaces 13 and 23 on the back of the first and second blades respectively to prevent cuts to the human body. The design of the chamfered surfaces 13 and 23 effectively prevents the first and second blades from cutting the human body, meeting the requirements for non-functional sharpness design and making them safer to use, especially for children and teenagers, effectively preventing cuts.

[0045] The metal sheet is fed in a progressive manner. When the metal sheet is moved forward to the (N+1)th station, and the previous set of first and second blades, after completing step S001 at the Nth station, is undergoing step S00N+1, the material on the back side of the metal sheet is moved to the Nth station and undergoes step S00. Here, N is a positive integer, and N is at least 1. This allows for the uninterrupted production of multiple sets of first and second blades, resulting in extremely high efficiency and productivity, further enhancing the market competitiveness of this invention. For example, if the metal sheet is fed in a progressive manner, when the metal sheet is moved forward to the second station, and the previous set of first and second blades, after completing step S001 at the first station, is undergoing step S002, the material on the back side of the metal sheet is moved forward to the first station and undergoes step S001, and so on, achieving uninterrupted production. Further details are omitted here.

[0046] The metal plate is a stainless steel plate; the first blade and the second blade are 180 degrees rotationally symmetrical and have the same structure, so that the same part of the first blade and the second blade can be processed using a single mold / punch, which can reduce the types of molds / punches and thus reduce costs.

[0047] The first concave surface 12 of the first blade 1 extends to the side of the first boss 14, the first shaft hole 101 passes through the first concave surface 12, and the first boss 14 is formed between the first concave surface 12 and the first contact clearance groove 15; the second concave surface 22 of the second blade 2 extends to the side of the second boss 24, the second shaft hole 201 passes through the second concave surface 22, and the second boss 24 is formed between the second concave surface 22 and the second contact clearance groove 25.

[0048] The first protrusion 14 and the second protrusion 24 are both arc-shaped, so that the first blade 1 and the second blade 2 are always in close contact during the opening or closing process. This ensures that the first blade 11 and the second blade 12 are always tightly engaged at each engagement position, making it easier to cut the object when the first blade 1 and the second blade 2 are closed to cut the object.

[0049] A first engagement plane 10 is formed between the opening edge of the first concave surface 12 of the first blade 1 and the first cutting edge 11. A second engagement plane 20 is formed between the opening edge of the second concave surface 22 of the second blade 2 and the second cutting edge 12. During the process of the first blade 1 and the second blade 2 hinged together to form scissors and closing with each other to achieve cutting, the first engagement plane 10 and the second engagement plane 20 are attached to each other and engage, achieving surface contact. This allows the sharp parts of the first cutting edge 11 and the second cutting edge 21 to be in parallel contact to achieve cutting. This avoids the sharp parts of the first cutting edge 11 and the second cutting edge 21 from directly crossing / not in parallel contact, which would cause excessive biting force and wear on the first cutting edge 11 and the second cutting edge 21. This ensures that the sharp parts of the first cutting edge 11 and the second cutting edge 21 are not easily worn, improving sharpness. As a result, it is easier to cut objects during the process of the sharp parts of the first cutting edge 11 and the second cutting edge 21 closing with each other, requiring less effort, and the operation is smoother and has a better feel, giving the invention a strong market competitiveness.

[0050] The widths of both the first occlusal plane 10 and the second occlusal plane 20 are less than 10 mm. Within this range, the widths of the inner surfaces of the first blade 1 and the second blade 2 will be relatively large. If narrow-faced scissors are required, the widths of the first occlusal plane 10 and the second occlusal plane 20 need to be designed to be smaller, for example, both the widths of the first occlusal plane 10 and the second occlusal plane 20 can be 0.5-1.5 mm. More preferably, the widths of both the first occlusal plane 10 and the second occlusal plane 20 are 0.8-1.2 mm. The width of the first occlusal plane 10 and the second occlusal plane 20 is 1.0 mm. Of course, it can also be 0.8 mm or 1.2 mm, and the difference is not significant. However, the optimal solution is that the width of the first occlusal plane 10 and the second occlusal plane 20 is 1.0 mm. The area occupied by the first blade 1 and the second blade 2 on the inner side surface will be relatively small. Thus, under the condition of minimizing the contact area of ​​the inner side surface of the first blade 1 and the second blade 2, setting the width of the first occlusal plane 10 and the second occlusal plane 20 to be small can ensure that the first blade 1 and the second blade 2 can better open and close. At the same time, it can ensure that the sharp parts of the first blade 11 and the second blade 21 are in parallel contact, which is not easy to be worn and improves the sharpness. Thus, it is easier to cut the object when the sharp parts of the first blade 11 and the second blade 21 are closed together.

[0051] The first occlusal plane 10 and the second occlusal plane 20 also serve as reinforcing ribs, ensuring that the first blade 1 and the second blade 2 have better structural strength and a longer service life.

[0052] The radius of the arc of the first blade edge is 120-150mm; the radius of the arc of the arc of the second blade edge is 120-150mm, so that the first biting plane 10 and the second biting plane 20 are always closely attached and engaged with each other during the opening or closing process of the first blade 1 and the second blade 2, making it easier for the first blade and the second blade to cut objects.

[0053] In summary, this invention enables the simultaneous production of the first and second blades, resulting in extremely high work efficiency and a 50% reduction in the production cycle, giving it a highly competitive market position. Furthermore, the first and second blades produced by this invention each have a first concave surface and a second concave surface, respectively. After the first and second blades are hinged together to form scissors, the first concave surface of the first blade and the second concave surface of the second blade align, reducing the area of ​​the inner surfaces of the first blade 1 and the second blade 2 after they are fitted together. This ensures a tighter fit between the first cutting edge 11 and the second cutting edge 21, making cutting relatively more labor-intensive and easier, and resulting in a more comfortable user experience. Meanwhile, the edges of both the first and second cutting edges are twisted; the side of the first cutting edge 11 is twisted and protrudes beyond the inner surface of the first blade 1, and the side of the second cutting edge 21 is twisted and protrudes beyond the inner surface of the second blade 2. With this structure, when the first and second blades 1 and 2 are relatively closed to cut an object, the closer the first and second blades 1 and 2 are to the blade tip (i.e., the front end), the tighter they fit together, ensuring that the first cutting edge 11 and the second cutting edge 21 can tightly interlock, making it easier to cut the object. Cutting requires less effort but is more comfortable to operate. Simultaneously, the blade tips of the first and second blades 1 and 2 can also easily cut the object, making them more convenient to use. The outer surfaces (i.e., the lower surfaces) of both the first and second blades 1 and 2 are set as a complete, flat plane without any bumps or depressions, resulting in a more aesthetically pleasing appearance. Furthermore, when the first blade 1 and the second blade 2 are made into scissors, the first boss 14 and the second boss 24 are fitted together to form a contact point. This contact point is located on the rear side of the hinge 3, so that the first shaft hole 101 of the first blade 1 and the second shaft hole 201 of the second blade 2 no longer contact each other and do not serve as a contact point. That is, the contact point is moved to the rear side of the hinge 3, which can better secure the first blade 1 and the second blade 2, making the first blade 11 and the second blade 12 mesh more tightly. Moreover, when the first blade 1 and the second blade 2 are opened, the root of the first blade 11 and the root of the second blade 12 also mesh tightly, thereby ensuring that the root of the first blade 11 and the root of the second blade 12 can also cut or sever objects well, and it is more difficult to cut. At the same time, it can also avoid the phenomenon that the first blade 1 and the second blade 2 will not loosen when the angle between them is too large, thereby ensuring the quality of the entire scissors and making the present invention highly competitive in the market.

[0054] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A method for manufacturing a scissor blade, characterized in that: The production method includes the following steps: SOO1: First, determine the area in the metal plate used to assemble the first and second blades of the scissors, and simultaneously punch the first shaft hole of the first blade and the second shaft hole of the second blade in that area. SOO2: Simultaneously punch and remove waste material from the back sides of the first and second blades in the area of ​​the first and second blades; SOO3: Simultaneously punch and remove the waste material from the cutting edge sides of the first and second blades in the area of ​​the first blade and the second blade to form the outline shape of the first blade and the second blade, which are separated from each other and have the first blade and the second blade respectively. The outline shape of the first blade and the second blade is connected to the metal plate at both ends. SOO4: The middle part of the outline of the first blade and the second blade is punched with concave and convex surfaces, wherein the upper surface of the outline of the first blade and the second blade is respectively formed with a first concave surface and a second concave surface, and the lower surface of the outline of the first blade and the second blade is respectively formed with a first convex surface and a second convex surface. SOO5: The first contact clearance groove and the second contact clearance groove are punched on the upper surface of the contour shape of the first blade and the second blade respectively, so that the upper surface of the contour shape of the first blade and the second blade are respectively formed with a first boss and a second boss. SOO6: Flatten the outline of the first and second blades; SOO7: Twist the contours of the first and second blades respectively, so that the edges of both the first and second blades are twisted; SOO8: Grind the first and second convex surfaces on the lower surfaces of the contour shapes of the first and second blades so that the lower surfaces of the contour shapes of the first and second blades are both complete flat surfaces without concavity or convexity. SOO9: The outline of the first and second blades is punched to connect the head and tail scraps, so as to separate them from the metal plate to form independent first and second blades, thus completing the manufacturing process.

2. The method for manufacturing a scissor blade according to claim 1, characterized in that: After step SOO3 and before step SOO4, the edges of the back of the first blade and the second blade are chamfered, so that the backs of the first blade and the second blade respectively form a first chamfer (13) and a second chamfer (23) to prevent scratching the human body.

3. The method for manufacturing a scissor blade according to claim 1, characterized in that: The metal sheet is fed in a progressive manner. When the metal sheet is forward to the (N+1)th station, and the first and second blades of the previous set after the SOON process is completed at the Nth station are performing the SOON process, the material on the back side of the metal sheet is sent to the Nth station and the SOON process is completed. Here, N is a positive integer and N is at least 1.

4. The method for manufacturing a scissor blade according to claim 2, characterized in that: The metal plate is made of stainless steel; the first blade and the second blade are 180 degrees rotationally symmetrical and have the same structure.

5. A method for manufacturing a scissor blade according to claim 2, characterized in that: The first concave surface (12) of the first blade (1) extends to the side of the first boss (14), the first shaft hole (101) penetrates the first concave surface (12), and the first boss (14) is formed between the first concave surface (12) and the first contact clearance groove (15); the second concave surface (22) of the second blade (2) extends to the side of the second boss (24), the second shaft hole (201) penetrates the second concave surface (22), and the second boss (24) is formed between the second concave surface (22) and the second contact clearance groove (25).

6. A method for manufacturing a scissor blade according to claim 5, characterized in that: The first boss (14) and the second boss (24) are both arc-shaped, so that the first blade (1) and the second blade (2) are always in close contact during the opening or closing process.

7. A method for manufacturing a scissor blade according to any one of claims 1-6, characterized in that: A first engagement plane (10) is formed between the opening edge of the first concave surface (12) of the first blade (1) and the first cutting edge (11), and a second engagement plane (20) is formed between the opening edge of the second concave surface (22) of the second blade (2) and the second cutting edge (21). During the process of the first blade (1) and the second blade (2) being hinged to form scissors and closing with each other to achieve cutting, the first engagement plane (10) and the second engagement plane (20) are attached to each other and engage.

8. A method for manufacturing a scissor blade according to claim 7, characterized in that: The width of the first occlusal plane (10) and the second occlusal plane (20) is 0.8-1.2 mm.

9. A method for manufacturing a scissor blade according to claim 8, characterized in that: The width of the first occlusal plane (10) and the second occlusal plane (20) is 1 mm.

10. A method for manufacturing a scissor blade according to claim 7, characterized in that: The radius of the arc of the first blade edge is 120-150mm; the radius of the arc of the second blade edge is 120-150mm, so that the first biting plane (10) and the second biting plane (20) are always closely attached and bitten together during the opening or closing process of the first blade (1) and the second blade (2).

Images