Reciprocating hair trimming blade set and reciprocating mesh cutter assembly

Abstract

The utility model discloses reciprocating hair clipper set, including knife net and fixed knife, the front side and / or rear side of fixed knife is equipped with a plurality of fixed cutting tooth who arranges along left and right direction, the bottom of fixed cutting tooth is equipped with the cutter assembly who cooperates with it and cut off hair, the inboard of fixed cutting tooth on fixed knife is integrally formed with knife net support, and the knife net includes net top and the side turn -down of downward bending who forms from the four around of net top, and the side turn -down of four around encloses the positioning groove, and the knife net support is equipped with the positioning portion who inserts into the positioning groove and cooperates with the positioning groove, and the knife net is fixed on the knife net support, and the inboard of positioning portion is equipped with movable hole, and the inner cutter assembly who can move left and right in it is equipped in movable hole, and the net top is equipped with mesh, and the inner cutter assembly cooperates with net top and is used for cutting off the hair that enters from mesh, has simple structure, cutting efficiency is high, can trim long hair and the characteristics such as shaving clean.

Description

[Technical Field]

[0001] This utility model relates to a reciprocating hair trimmer assembly, and also to a reciprocating blade and wire cutting component. [Background Technology]

[0002] There are various types of hair trimmers on the market currently.

[0003] 1. Hair clippers used for hairdressing, with comb-shaped blades, as shown in the patent announcement number CN1882426A entitled "Cutting Head for Electric Hair Clippers". It is mainly used for trimming longer hair. Its advantage is high hair-cutting efficiency, but its disadvantage is that it cannot shave cleanly.

[0004] 2. Rotary shavers, as shown in patent publication CN1509851A, are mainly used for shaving short hair, such as shaving. Their advantage is that they can shave cleanly, but they are difficult to shave long hair. Moreover, the shaving area of ​​the foil accounts for a very small proportion of the entire shaver head, resulting in low shaving efficiency.

[0005] 3. Reciprocating shavers, in order to take into account both long and short hair, the technology disclosed in the patent publication number CN100579735C entitled "Dry Shaver" usually has a semi-cylindrical blade group and a narrow strip blade group on the shaver head. The slit blade group is made of a relatively thick material and has a toothed structure formed by side grooves. It is mainly used to shave long hair short, while the outer blade of the semi-cylindrical blade group is a mesh-shaped blade net, which can be made very thin to shave short hair clean. While slit blades can shave long hair, their cutting efficiency is not high enough. When the semi-cylindrical blades are placed on the skin, the contact area is usually only a very narrow area at the top of the arc closest to the skin. Many areas of the foil cannot contact the skin at the same time. It is necessary to rotate the angle of the shaver head to allow other areas to contact the skin. However, when rotating the angle to bring some areas that were not in contact with the skin to contact the skin, some areas that were in contact with the skin will fall away from the skin, resulting in low shaving efficiency.

[0006] This utility model was made based on this situation. [Utility Model Content]

[0007] The technical problem to be solved by this utility model is to provide a reciprocating hair trimmer set, which has the characteristics of simple structure, high cutting efficiency, and the ability to trim long hair and shave it clean.

[0008] To solve the above-mentioned technical problems, this utility model provides a reciprocating hair trimming scissor set, including a blade net and a fixed blade. The fixed blade has multiple fixed cutting teeth arranged in a left-right direction on its front and / or rear sides. The bottom of each fixed cutting tooth has a moving blade assembly that cooperates with it to cut hair. A blade net support is integrally formed on the fixed blade inside the fixed cutting teeth. The blade net includes a net top and downward-facing side flanges formed by bending downwards from all sides of the net top. The side flanges form a positioning groove. The blade net support has a positioning part that is inserted into the positioning groove and cooperates with the positioning groove. The blade net is fixed on the blade net support. The inner side of the positioning part has a movable hole. An inner blade assembly that can move left and right inside the movable hole is provided. The net top has mesh holes. The inner blade assembly cooperates with the net top to cut the hair that enters through the mesh holes.

[0009] As described above, in the reciprocating hair trimmer assembly, the side flanges around the perimeter form an annular positioning groove, the blade mesh is fitted on the outside of the positioning part, and the blade mesh bracket is provided with a step on the outside of the positioning part to support the side flanges from below.

[0010] In the reciprocating hair trimmer assembly described above, the left and right sides of the blade net and blade net support are flush with or substantially flush with the left and right sides of the fixed blade.

[0011] In the reciprocating hair trimmer assembly described above, the blade mesh is fixed to the blade mesh bracket by side flange welding or bonding.

[0012] As described above, in the reciprocating hair trimmer set, the cross-section of the blade net has a flat top or an upwardly convex arc-shaped structure. When the top of the net is an arc-shaped structure, the included angle b between the tangents t at the front and rear ends of the top of the net is greater than 90° on the inner side of the chamfer connecting the top of the net and the side flange.

[0013] As described above, in the reciprocating hair trimmer set, the top of the mesh has two or more cutting areas spaced apart by a slot in the front-to-back direction. The cutting areas have multiple mesh holes distributed between the left and right ends of the blade mesh, and the blade mesh bracket is provided with a support part that supports the bottom of the slot.

[0014] In the reciprocating hair trimmer assembly described above, the spacer groove and the support are welded and fixed.

[0015] As described above, in the reciprocating hair trimmer assembly, the inner blade assembly includes an inner blade and an inner blade support, and the moving blade assembly includes a moving blade and a moving blade support. The inner blade support and the moving blade support are directly or indirectly connected to a drive connector.

[0016] In the reciprocating hair trimmer assembly described above, the fixed blade is formed by powder metallurgy.

[0017] As described above, the reciprocating hair trimmer assembly has downward and outward inclined tooth surfaces on the left and right sides of the fixed cutting tooth. The tooth surface includes an upper inclined surface and a lower inclined surface. Relative to the vertical direction f, the inclination angle of the lower inclined surface is greater than that of the upper inclined surface. The lower inclined surface and the bottom surface of the fixed cutting tooth form an acute-angled blade. The included angle α between the lower inclined surface and the bottom surface of the fixed cutting tooth is ≤70°.

[0018] Another technical problem to be solved by this utility model is to provide a reciprocating blade cutting assembly, which has the characteristics of simple structure and high shaving efficiency.

[0019] To solve the above-mentioned technical problems, the present invention provides a reciprocating blade mesh cutting assembly, comprising a blade mesh and a blade mesh support. The blade mesh includes a mesh top and downward-facing side flanges formed by bending downwards from the four sides of the mesh top. The side flanges form a positioning groove. The blade mesh support is provided with a positioning part that is inserted into the positioning groove and cooperates with the positioning groove. The blade mesh is fixed on the blade mesh support. The inner side of the positioning part is provided with a movable hole. An inner blade assembly that can move left and right is provided in the movable hole. The mesh top is provided with mesh holes. The inner blade assembly cooperates with the mesh top to cut hair entering through the mesh holes.

[0020] As described above, in the reciprocating blade cutting assembly, the sides of the blade mesh are flush with or substantially flush with the sides of the blade mesh support.

[0021] As described above, in the reciprocating blade cutting assembly, the side flanges around the perimeter form an annular positioning groove, the blade is fitted onto the outside of the positioning part, and the blade support is provided with a step on the outside of the positioning part to support the side flanges from below.

[0022] As described above, in the reciprocating blade cutting assembly, the blade is fixed to the blade holder by side flange welding or bonding.

[0023] As described above, in the reciprocating blade cutting assembly, the cross-section of the blade has a flat top or an upwardly convex arc-shaped structure. When the top of the blade is an arc-shaped structure, the included angle b between the tangents t at the front and rear ends of the top of the blade is greater than 90° on the inner side of the chamfer connecting the top of the blade and the side flange.

[0024] As described above, in the reciprocating blade mesh cutting assembly, the top of the mesh has two or more cutting areas spaced apart by a gap groove in the front-back direction. The cutting areas have multiple mesh holes distributed between the left and right ends of the blade mesh, and the blade mesh bracket is provided with a support portion that supports the bottom of the gap groove.

[0025] In the reciprocating blade cutting assembly described above, the spacing groove and the support are welded and fixed.

[0026] As described above, the reciprocating blade cutting assembly includes an inner blade and an inner blade support, with the inner blade support being directly or indirectly connected to a drive connector.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. The reciprocating hair trimmer assembly of this utility model has a simple structure, including a comb-shaped cutting structure composed of fixed cutting teeth and moving blades located on the front and / or rear sides, and a blade-net cutting assembly composed of a blade net and inner blades located inside the fixed cutting teeth. The comb-shaped cutting structure is conducive to efficiently trimming long hair and shortening it, while the blade-net cutting assembly is conducive to shaving short hair cleanly. The blade net is made of a thin sheet with a thickness between 0.04mm and 0.10mm, which is sufficient for a clean shave. For example, using a thin sheet with a thickness of 0.05mm to 0.06mm results in a good shave. Furthermore, by forming a top and side-flipped structure, the blade net helps to increase the area ratio of the cutting area of ​​the blade net on the top of the blade-net cutting assembly, increasing the area of ​​the blade net in contact with the skin, and improving shaving and clean shaving efficiency.

[0029] 2. The fixed blade of this utility model is formed by powder metallurgy, which facilitates the one-piece forming of the blade screen support and its structure. The structure is simple, which helps to reduce the volume of the reciprocating hair trimmer assembly, making the structural space compact and increasing the area ratio of the effective cutting area on the reciprocating hair trimmer assembly.

[0030] 3. The reciprocating blade cutting assembly of this utility model has a simple structure, which is conducive to increasing the area ratio of the cutting area of ​​the blade on the top of the reciprocating blade cutting assembly, increasing the area of ​​the blade in contact with the skin at the same time, and improving shaving efficiency; and the blade can be made of a thin sheet, for example, a thin sheet with a thickness of 0.04mm-0.10mm, for a clean shave with high efficiency.

[0031] 4. The left and right sides of the blade net and blade net support of this utility model are flush or substantially flush with the left and right sides of the fixed blade, which helps to increase the length of the cutting area of ​​the blade net in the length direction of the reciprocating hair trimmer assembly and improve the shaving efficiency.

[0032] 5. The top of the mesh of this utility model has two or more cutting areas separated by interval grooves in the front-to-back direction. The interval grooves can increase the strength of the mesh, and during the movement of the mesh top on the skin, the recessed interval grooves form a space for the hair to spread out, so as to facilitate the hair to enter the mesh and be cut. Furthermore, the mesh support is provided with a support part at the bottom of the interval groove, which helps to maintain the stability of the mesh top while making the width of the mesh top larger. The interval grooves and the support part are welded and fixed, and the welding point is located in the recessed interval groove to avoid contact with the skin and affect the skin feel. [Attached Image Description]

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0034] Figure 1 This is a schematic diagram of the structure of a reciprocating hair trimmer assembly according to this utility model;

[0035] Figure 2 This is a front side view of a reciprocating hair trimmer assembly according to this utility model;

[0036] Figure 3 This is an exploded view of a reciprocating hair trimmer assembly according to this utility model;

[0037] Figure 4 This utility model relates to a reciprocating hair trimmer assembly. Figure 2 A schematic diagram of the cross-section along the AA direction;

[0038] Figure 5 This is a schematic diagram of the cross-section of the fixed cutting tooth;

[0039] Figures 6-8 This is a schematic diagram of the different tops of the knife-shaped wire mesh in the left-right direction;

[0040] Figure 9 This is a schematic diagram of an embodiment of the present invention, a reciprocating hair trimmer assembly, which has fixed cutting teeth only on the front side of the blade net;

[0041] Figure 10 yes Figure 9 A cross-sectional schematic diagram of the embodiment;

[0042] Figure 11 This is a schematic diagram of the structure of a reciprocating blade cutting assembly according to the present invention;

[0043] Figure 12 yes Figure 11 A cross-sectional schematic diagram of the embodiment.

Detailed Implementation Methods

[0044] The present invention will be further described below with reference to the accompanying drawings:

[0045] like Figure 1-10The reciprocating hair trimmer assembly shown includes a blade net 1 and a fixed blade 2. The fixed blade 2 has multiple fixed cutting teeth 21 arranged in a left-right direction on its front and / or rear sides. The bottom of the fixed cutting teeth 21 is provided with a moving blade assembly 3 that cooperates with it to cut hair. A blade net support 4 is integrally formed on the fixed blade 2 inside the fixed cutting teeth 21. The blade net 1 includes a net top 11 and downward-facing side flanges 12 formed by bending downwards from all sides of the net top 11. The side flanges 12 form a positioning groove 13. The blade net support 4 is provided with a positioning part 41 that is inserted into the positioning groove 13 and cooperates with the positioning groove 13. The blade net 1 is fixed on the blade net support 4. The inner side of the positioning part 41 is provided with a movable hole 42. An inner blade assembly 5 that can move left and right is provided in the movable hole 42. The net top 11 is provided with mesh holes 14. The inner blade assembly 5 cooperates with the net top 11 to cut the hair that enters from the mesh holes 14.

[0046] This reciprocating hair trimmer assembly has a simple structure, including a comb-shaped cutting structure composed of fixed cutting teeth 21 and moving blade assembly 3 located on the front and / or rear sides, and a blade-net cutting assembly composed of a blade net 1 and inner blade assembly 5 located inside the fixed cutting teeth 21. The comb-shaped cutting structure is conducive to efficiently trimming long hair and shortening it, while the blade-net cutting assembly is conducive to shaving short hair cleanly. The blade net is made of a thin sheet with a thickness of 0.04mm-0.10mm, for example, a thin sheet with a thickness of 0.05mm-0.06mm, which has a good shaving cleanliness. Furthermore, by forming a top 11 and a side flange 12, the blade net 1 helps to increase the area ratio of the cutting area of ​​the blade net 1 on the top of the blade-net cutting assembly, increase the area of ​​the blade net in contact with the skin, and improve shaving and shaving efficiency.

[0047] Furthermore, the left and right sides of the blade net 1 and the blade net support 4 are flush or substantially flush with the left and right sides of the fixed blade 2, which helps to increase the length of the cutting area of ​​the blade net 1 in the length direction of the reciprocating hair trimmer assembly and improve the shaving efficiency.

[0048] Preferably, the side flanges 12 around the perimeter form an annular positioning groove 13, and the side flanges 12 around the perimeter are seamlessly connected to the top of the mesh 11 to improve the skin feel. The blade mesh 1 is fitted onto the outside of the positioning part 41. The blade mesh bracket 4 is provided with a step 43 on the outside of the positioning part 41 to support the side flanges 12 from below. During installation, the blade mesh 1 can be fixed by fitting it downwards onto the positioning part 41, which is convenient for assembly.

[0049] Preferably, the blade mesh 1 is fixed to the blade mesh bracket 4 by welding or bonding the side flange 12.

[0050] like Figure 8 As shown, the cross-section of the blade mesh 1 has a flat top 11, which facilitates increasing the area of ​​the blade mesh in contact with the skin; or as... Figure 6 and Figure 7 As shown, the top of the net 11 is an upwardly convex arc structure to facilitate better contact with the concave parts of the body. On the inner side of the chamfer 15 connecting the top of the net 11 and the side flange 12, the included angle b between the tangents t at the front and rear ends of the top of the net 11 is greater than 90°. This is to avoid the top of the net 11 being too high, which would result in a small area of ​​the top of the net 11 contacting the skin at the same time and reduce the shaving efficiency. When the width of the top of the net 11 is constant, the larger the included angle b, the lower the height h of the top of the net 11, and the flatter the top of the net 11, which is more conducive to the top of the net 11 having a larger area of ​​contact with the skin at the same time. Preferably, the included angle b ≥ 135°.

[0051] Preferably, the top of the mesh 11 has two or more cutting areas 17 spaced apart by a slot 16 in the front-back direction. The cutting areas 17 have multiple mesh holes 14 distributed between the left and right ends of the mesh 1. The slot 16 can increase the strength of the mesh, and during the movement of the top of the mesh on the skin, the recessed slot 16 forms a space for the hair to spread out, so that the hair can enter the mesh hole 14 and be cut. The mesh support 4 is provided with a support part 44 supported at the bottom of the slot 16, which helps to maintain the stability of the top of the mesh 11 while making the width of the top of the mesh 11 larger. Preferably, the slot 16 and the support part 44 are welded and fixed, and the welding point is located in the recessed slot 16 to avoid contact with the skin and affect the skin feel.

[0052] Preferably, the fixed blade 2 is formed by powder metallurgy, which facilitates the integral forming of the blade outlet support 4 and its structure.

[0053] Preferably, such as Figure 5 As shown, the left and right sides of the fixed cutting tooth 21 are respectively provided with downward and outward inclined tooth surfaces. The tooth surface includes an upper inclined surface 211 and a lower inclined surface 212. Relative to the vertical direction f, the inclination angle of the lower inclined surface 212 is greater than the inclination angle of the upper inclined surface 211. The lower inclined surface 212 and the bottom surface of the fixed cutting tooth 21 form an acute-angled cutting edge 213. The included angle α between the lower inclined surface 212 and the bottom surface of the fixed cutting tooth 21 is ≤70°, which improves the sharpness of the cut.

[0054] like Figure 4 and Figure 10 The diagram shows one embodiment of the inner blade assembly 5 and the moving blade assembly 3. The inner blade assembly 5 includes an inner blade 51 and an inner blade support 52. The moving blade assembly 3 includes a moving blade 31 and a moving blade support 32. The inner blade support 52 and the moving blade support 32 are directly or indirectly connected to a drive connector 6. The drive connector 6 is used to connect with an external drive, thereby driving the inner blade 51 and the inner blade support 52 to perform left and right reciprocating motion.

[0055] The bottom of the fixed blade 1 can be provided with a base 7 to install and fix the fixed blade 1 and the blade net bracket 4. Below the moving blade assembly 3, there is also a first elastic member 33 for elastically pressing the moving blade assembly 3 upward so that the moving blade 31 is attached to the bottom surface of the fixed cutting tooth 21. Below the inner blade assembly 5, there is a second elastic member 53 for elastically pressing the inner blade assembly 5 upward so that the inner blade 51 is attached to the bottom surface of the net top 11.

[0056] like Figure 1-12 The reciprocating blade cutting assembly shown includes a blade 1 and a blade support 4. The blade 1 includes a top 11 and downward-facing side flanges 12 formed by bending downwards from all sides of the top 11. The side flanges 12 form a positioning groove 13. The blade support 4 is provided with a positioning part 41 that is inserted into the positioning groove 13 and cooperates with the positioning groove 13. The blade 1 is fixed on the blade support 4. The inner side of the positioning part 41 is provided with a movable hole 42. An inner blade assembly 5 that can move left and right is provided in the movable hole 42. The top 11 is provided with mesh holes 14. The inner blade assembly 5 cooperates with the top 11 to cut the hair that enters from the mesh holes 14.

[0057] The reciprocating blade cutting assembly has a simple structure, which helps to increase the area ratio of the cutting area of ​​the blade 1 on the top of the reciprocating blade cutting assembly, increase the area of ​​the blade in contact with the skin at the same time, and improve shaving efficiency; and the blade can be made of a thin sheet, for example, a thin sheet with a thickness of 0.04mm-0.10mm, for a clean shave with high efficiency.

[0058] like Figure 8 As shown, the cross-section of the blade mesh 1 has a flat top 11; or as shown... Figure 6 and Figure 7 As shown, the top of the net 11 is an upwardly convex arc structure to facilitate better contact with the concave parts of the body. On the inner side of the chamfer 15 connecting the top of the net 11 and the side flange 12, the included angle b between the tangents t at the front and rear ends of the top of the net 11 is greater than 90°, so as to avoid the top of the net 11 convex being too high, which would make the area of ​​the top of the net 11 in contact with the skin too small and reduce the shaving efficiency.

[0059] Preferably, the side flanges 12 around the perimeter form an annular positioning groove 13, the blade mesh 1 is fitted on the outside of the positioning part 41, and the blade mesh bracket 4 is provided with a step 43 on the outside of the positioning part 41 to support the side flanges 12 from below.

[0060] Preferably, the blade mesh 1 is fixed to the blade mesh bracket 4 by welding or bonding the side flange 12.

[0061] Preferably, the top of the mesh 11 has two or more cutting areas 17 spaced apart by the spacer groove 16 in the front-back direction. The cutting areas 17 have multiple mesh holes 14 distributed between the left and right ends of the blade mesh 1. The blade mesh bracket 4 is provided with a support part 44 that supports the bottom of the spacer groove 16. Preferably, the spacer groove 16 and the support part 44 are welded and fixed.

[0062] The inner blade assembly 5 includes an inner blade 51 and an inner blade support 52. A drive connector 6 is directly or indirectly connected to the inner blade support 52. The drive connector 6 is used to connect to an external drive, thereby driving the inner blade 51 and the inner blade support 52 to reciprocate left and right. Below the inner blade assembly 5, there is a second elastic member 53 for elastically pressing the inner blade assembly 5 upward so that the inner blade 51 is attached to the bottom surface of the top of the net 11.

[0063] like Figure 11-12 In the illustrated embodiment, the reciprocating blade cutting assembly can be an independent blade group structure, with the sides of the blade mesh 1 flush or substantially flush with the sides of the blade mesh support 4. A base 7 can be provided at the bottom of the blade mesh support 4 for mounting the blade mesh support 4, and a second elastic member 53 is provided below the inner blade assembly 5 to elastically press the inner blade assembly 5 upward so that the inner blade 51 is attached to the bottom surface of the mesh top 11.

[0064] Of course, it can also be like Figure 1-4 In the illustrated embodiment, the reciprocating blade-and-wire cutting assembly is a set of cutting structures within a reciprocating hair trimmer set. The reciprocating blade-and-wire cutting assembly also has comb-shaped cutting structures on its front and rear sides, or as shown... Figure 9-10 The diagram shows that a comb-shaped cutting structure is only set on one of the front and rear sides.

Claims

1. A reciprocating hair trimmer set, characterized in that: The device includes a mesh (1) and a fixed blade (2). The fixed blade (2) has multiple fixed cutting teeth (21) arranged in the left-right direction on its front and / or rear sides. The bottom of the fixed cutting teeth (21) is provided with a moving blade assembly (3) that cooperates with it to cut hair. A mesh support (4) is integrally formed on the fixed blade (2) inside the fixed cutting teeth (21). The mesh (1) includes a mesh top (11) and downward-facing side flanges (12) formed by bending downwards from the mesh top (11) around the perimeter. The side flanges (12) around the perimeter form a mesh. The positioning groove (13) is provided on the blade support (4), and the positioning part (41) is inserted into the positioning groove (13) and cooperates with the positioning groove (13). The blade (1) is fixed on the blade support (4). The inner side of the positioning part (41) is provided with a movable hole (42). The movable hole (42) is provided with an inner blade assembly (5) that can move left and right inside it. The top of the mesh (11) is provided with a mesh hole (14). The inner blade assembly (5) cooperates with the top of the mesh (11) to cut the hair that enters from the mesh hole (14).

2. The reciprocating hair trimmer set according to claim 1, characterized in that: The side flanges (12) around the perimeter form an annular positioning groove (13). The blade mesh (1) is fitted on the outside of the positioning part (41). The blade mesh bracket (4) is provided with a step (43) on the outside of the positioning part (41) to support the side flanges (12) from below.

3. The reciprocating hair trimmer set according to claim 1, characterized in that: The left and right sides of the blade net (1) and the blade net support (4) are flush or substantially flush with the left and right sides of the fixed blade (2).

4. The reciprocating hair trimmer set according to claim 1, characterized in that: The blade net (1) is fixed to the blade net bracket (4) by welding or bonding the side flange (12).

5. The reciprocating hair trimmer set according to claim 1, characterized in that: The cross-section of the knife net (1) has a flat top (11) or an upwardly convex arc structure. When the top (11) is an arc structure, the angle b between the tangents (t) at the front and rear ends of the top (11) is greater than 90° inside the chamfer (15) connecting the top (11) and the side flange (12).

6. The reciprocating hair trimmer set according to any one of claims 1 to 5, characterized in that: The top of the mesh (11) has two or more cutting areas (17) spaced apart by a slot (16) in the front-back direction. The cutting areas (17) have multiple mesh holes (14) distributed between the left and right ends of the blade mesh (1). The blade mesh support (4) is provided with a support part (44) that supports the bottom of the slot (16).

7. The reciprocating hair trimmer set according to claim 6, characterized in that: The spacer groove (16) and the support (44) are welded and fixed.

8. The reciprocating hair trimmer set according to claim 1, characterized in that: The inner blade assembly (5) includes an inner blade (51) and an inner blade support (52), and the moving blade assembly (3) includes a moving blade (31) and a moving blade support (32). The inner blade support (52) and the moving blade support (32) are directly or indirectly connected to a drive connector (6).

9. The reciprocating hair trimmer set according to claim 1, characterized in that: The fixed blade (2) is formed by powder metallurgy.

10. The reciprocating hair trimmer set according to claim 9, characterized in that: The fixed cutting tooth (21) has downward and outward inclined tooth surfaces on its left and right sides respectively. The tooth surfaces include an upper inclined surface (211) and a lower inclined surface (212). Relative to the vertical direction f, the inclination angle of the lower inclined surface (212) is greater than that of the upper inclined surface (211). The lower inclined surface (212) and the bottom surface of the fixed cutting tooth (21) form an acute-angled cutting edge (213). The included angle α between the lower inclined surface (212) and the bottom surface of the fixed cutting tooth (21) is ≤70°.

11. A reciprocating blade cutting assembly, characterized in that: The device includes a wire mesh (1) and a wire mesh support (4). The wire mesh (1) includes a top (11) and downward-facing side flanges (12) formed by bending downwards from the top (11). The side flanges (12) form a positioning groove (13). The wire mesh support (4) is provided with a positioning part (41) that is inserted into the positioning groove (13) and cooperates with the positioning groove (13). The wire mesh (1) is fixed on the wire mesh support (4). The inner side of the positioning part (41) is provided with a movable hole (42). An inner blade assembly (5) that can move left and right is provided in the movable hole (42). The top (11) is provided with mesh holes (14). The inner blade assembly (5) cooperates with the top (11) to cut hair that enters from the mesh holes (14).

12. The reciprocating blade cutting assembly according to claim 11, characterized in that: The sides of the blade net (1) are flush or substantially flush with the sides of the blade net support (4).

13. The reciprocating blade cutting assembly according to claim 11, characterized in that: The side flanges (12) around the perimeter form an annular positioning groove (13). The blade mesh (1) is fitted on the outside of the positioning part (41). The blade mesh bracket (4) is provided with a step (43) on the outside of the positioning part (41) to support the side flanges (12) from below.

14. The reciprocating blade cutting assembly according to claim 11, characterized in that: The blade net (1) is fixed to the blade net bracket (4) by welding or bonding the side flange (12).

15. The reciprocating blade cutting assembly according to claim 11, characterized in that: The cross-section of the knife net (1) has a flat top (11) or an upwardly convex arc structure. When the top (11) is an arc structure, the angle b between the tangents (t) at the front and rear ends of the top (11) is greater than 90° inside the chamfer (15) connecting the top (11) and the side flange (12).

16. The reciprocating blade cutting assembly according to any one of claims 11 to 15, characterized in that: The top of the mesh (11) has two or more cutting areas (17) spaced apart by a slot (16) in the front-back direction. The cutting areas (17) have multiple mesh holes (14) distributed between the left and right ends of the blade mesh (1). The blade mesh support (4) is provided with a support part (44) that supports the bottom of the slot (16).

17. The reciprocating blade cutting assembly according to claim 16, characterized in that: The spacer groove (16) and the support (44) are welded and fixed.

18. The reciprocating blade cutting assembly according to any one of claims 11 to 15 or 17, characterized in that: The inner blade assembly (5) includes an inner blade (51) and an inner blade support (52), and the inner blade support (52) is directly or indirectly connected to a drive connector (6).

Images