Reciprocating type shaver head

Abstract

The reciprocating type razor head comprises an arc-shaped razor net and a razor net fixing frame, the arc-shaped razor net is formed by bending a plane razor net through an upper die and a lower die of a die with the transverse section being a full circle R and the longitudinal section being an oval, and the longitudinal section of the top of the arc-shaped razor net is in the shape of an oval or a parabola R or a non-full circle R; the transverse section of the top of the arc-shaped cutter net is a full circle R, and the left and right sides of the vertex are nonlinear; the lower end of the arc-shaped cutter net is connected with the cutter net fixing frame to form an arc-shaped nonlinear cutter head; the periphery of the arc-shaped knife net is integrally formed in an injection molding and wrapping mode, or metal clamping plates are installed on the two sides of the arc-shaped knife net, and the metal clamping plates are bent to be in a V shape and wrapped and shaped. According to the reciprocating type shaver head, the arc-shaped shaver net (the whole circle of the transverse section is R, and the longitudinal section is oval) is directly bent and shaped on a mold, the periphery of the arc-shaped shaver net is wrapped into an arc shape through injection molding, skin cannot be blocked when a sunken area of the jaw or the lip edge is trimmed, trimming is clean, efficiency is high, experience feeling is good, technical mold machining is simple, and cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of personal care hair trimming, in particular to a reciprocating razor head. Background Art

[0002] With the increasing development of social economy and the improvement of living standards, people have more and more demands for personal care products, especially modern young people have higher and higher requirements for beard trimming efficiency, skin feel, and experience. The mainstream blades on the market are all straight-line. When trimming the concave areas on the edges of the chin and lips, the straight line will block the skin, and the hair in the concave areas needs to be trimmed back and forth several times to be trimmed cleanly, which is inefficient and the experience is not good.

[0003] The existing arc knife mesh processing technology is to use a precision continuous stamping die to punch out N mesh holes in the mesh material. The arc is shaped by die extrusion and then cut out into a single mesh. Due to the high technical threshold, complex mold and high processing cost. Summary of the invention

[0004] An object of the present invention is to provide a reciprocating razor head to solve the problems existing in the prior art.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A reciprocating razor head, comprising an arc-shaped blade net and a blade net fixing frame, wherein the arc-shaped blade net is formed by bending a flat blade net by upper and lower molds of a mold having a full circle R in the transverse section and an ellipse in the longitudinal section, the longitudinal section of the top of the arc-shaped blade net is an ellipse or a parabola R, or a non-full circle R, the transverse section of the top of the arc-shaped blade net is a full circle R and the left and right sides of the vertex are nonlinear shapes, and the lower end of the arc-shaped blade net is connected to the blade net fixing frame to form an arc-shaped nonlinear blade head;

[0007] The periphery of the arc-shaped blade net is formed by injection molding and wrapped in one piece.

[0008] Alternatively, metal clamps are installed on both sides of the arc-shaped knife net, and the metal clamps are bent into a V-shape and pressed by a clamp or welded to the arc-shaped knife net by laser and wrapped to shape.

[0009] As a preferred technical solution, the arc-shaped knife net is placed by a flat knife net in the upper and lower molds of a fixture with a full circle R in the transverse section and an elliptical longitudinal section. The upper and lower molds of the fixture are heated by electric heating tubes. The material is heated to deform it into the designed arc shape, and the transverse and longitudinal cross-sectional shapes are integrally molded.

[0010] As a preferred technical solution, a plurality of positioning holes are provided on both sides of the arc-shaped knife net, and the positioning holes are used for positioning during mold injection and fixture shaping.

[0011] As a preferred technical solution, pits are formed at the sealing positions on both sides of the arc-shaped knife net, the pits are flush with the inner arms of the knife net fixing frame and are used to separate from the mold, and the step areas on both sides of the middle of the knife net fixing frame are used to wrap the arc-shaped knife net and prevent the arc-shaped knife net from separating.

[0012] As a preferred technical solution, protrusions and round holes are provided on both sides of the metal clamping plate, and the protrusions and the round holes are riveted to the arc-shaped knife net and the arc-shaped knife net is correspondingly segmented and fixed to avoid rebound.

[0013] As a preferred technical solution, the arc-shaped nonlinear cutter head is used singly or in parallel.

[0014] As a preferred technical solution, spring-loaded limiters are formed on both sides of the knife net fixing frame to prevent it from falling out.

[0015] As a preferred technical solution, a metal fixing plate is provided at the lower end of the knife net fixing frame, and the metal fixing plate is fixed to the knife net fixing frame by a buckle to avoid deformation.

[0016] As a preferred technical solution, a moving knife holder is provided on the inner side of the arc-shaped knife net, an arc-shaped moving knife is mounted on the moving knife holder, and moving knife springs are connected between the two sides of the moving knife holder and the metal fixing plate.

[0017] As a preferred technical solution, return springs are installed on both sides of the knife net fixing frame.

[0018] The beneficial effects of the present invention are as follows: a reciprocating razor head is provided, which is formed by directly bending an arc-shaped blade net (a full circle R in the transverse section and an elliptical in the longitudinal section) on a mold, and is injection-molded around to form an arc shape. It will not block the skin when trimming the concave areas on the chin or lip edges, and the trimming is clean, efficient, and has a good user experience. The technical mold processing is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure of a reciprocating razor head according to solution A of the embodiment;

[0021] Figure 2 A cross-sectional view of a reciprocating razor head according to solution A of the embodiment;

[0022] Figure 3 An exploded view of a reciprocating razor head according to solution A of the embodiment;

[0023] Figure 4It is a combined structural diagram of the arc-shaped knife net and the knife net fixing frame of solution A described in the embodiment;

[0024] Figure 5 This is a schematic diagram of the overall structure of a reciprocating razor head according to solution B described in the embodiment;

[0025] Figure 6 A cross-sectional view of a reciprocating razor head according to solution B described in the embodiment;

[0026] Figure 7 An exploded view of a reciprocating razor head according to solution B described in the embodiment;

[0027] Figure 8 This is a structural diagram of the combination of the curved knife net and the metal splint of Solution B described in the embodiment.

[0028] Figures 1 to 8 middle:

[0029] 1. Curved knife net; 2. Knife net fixing frame; 3. Metal splint; 4. Positioning hole; 5. Pits; 6. Bumps; 7. Round holes; 8. Spring buckle; 9. Metal fixing plate; 10. Moving knife holder; 11. Curved moving knife; 12. Moving knife spring; 13. Reset spring. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] like Figures 1 to 8 As shown, in this embodiment, a reciprocating razor head includes an arc-shaped blade net 1 and a blade net fixing frame 2. The arc-shaped blade net 1 is formed by bending a flat blade net with an upper and lower mold having a full circle R in the transverse section and an elliptical longitudinal section. The top longitudinal section of the arc-shaped blade net 1 is an ellipse or a parabola R, or a non-full circle R. The top transverse section of the arc-shaped blade net 1 is a full circle R and the left and right sides of the vertex are nonlinear shapes. The lower end of the arc-shaped blade net 1 is connected to the blade net fixing frame 2 to form an arc-shaped nonlinear blade head.

[0032] The arc knife net 1 is composed of a flat knife net placed in the upper and lower molds of a fixture with a full circle R in the horizontal section and an elliptical longitudinal section. The upper and lower molds of the fixture are heated by electric heating tubes. The material is heated to deform it into the designed arc shape, and the horizontal and longitudinal cross-sectional shapes are integrally molded.

[0033] The common parts of Scheme A and Scheme B are that a plurality of positioning holes 4 are provided on both sides of the arc-shaped knife net 1, and the positioning holes 4 are used for positioning during mold injection and fixture shaping; the arc-shaped nonlinear knife head is used singly or in parallel; spring buckles 8 are formed on both sides of the knife net fixing frame 2 to limit the position to prevent it from slipping out; a metal fixing plate 9 is provided at the lower end of the knife net fixing frame 2, and the metal fixing plate 9 is fixed to the knife net fixing frame 2 by a buckle to avoid deformation; a moving knife holder 10 is provided on the inner side of the arc-shaped knife net 1, and an arc-shaped moving knife 11 is installed on the moving knife holder 10, and moving knife springs 12 are connected between the two sides of the moving knife holder 10 and the metal fixing plate 9, and reset springs 13 are installed on both sides of the knife net fixing frame 2.

[0034] A number of through holes are provided in local areas on the surface of the arc-shaped knife net 1, and a number of cutting edges are provided on the arc-shaped movable knife 11. Under the action of the movable knife spring 12, the outer circular cutting edge of the arc-shaped movable knife 11 is close to the inner arc side of the arc-shaped knife net 1. When in use, hair enters through the through hole and is cut off by the cutting edge that swings left and right. The reset springs 13 on both sides are connected to the knife net fixing frame 2. When in use, the skin contacts the arc-shaped knife net 1. As the hand presses, the entire arc-shaped knife net 1 combination shrinks downward in parallel. After the external pressure is reduced, the reset spring 13 lifts the knife net fixing frame 2, so that the arc-shaped knife net 1 returns to its initial position, thereby increasing the use experience. There is a metal shaft in the middle of the movable knife frame 10, which is connected to the eccentric wheel of the motor. When the motor is running, the eccentric wheel drives the metal shaft to drive the movable knife frame 10 to swing back and forth left and right to cut hair.

[0035] The following are the differences between Plan A and Plan B:

[0036] In solution A, the periphery of the arc-shaped blade net 1 is injection-molded and wrapped.

[0037] The sealing positions on both sides of the arc-shaped knife net 1 are formed with pits 5, which are flush with the inner arms of the knife net fixing frame 2 and are used to separate from the mold. The step areas on both sides of the middle of the knife net fixing frame 2 are used to wrap the arc-shaped knife net 1 and prevent the arc-shaped knife net 1 from separating.

[0038] The material of the arc knife net 1 is SUS301EH. After being etched into a mesh sheet, it is placed in a mold and formed into an arc shape. It is fixed in a plastic part by injection molding around it. After demoulding, it is installed in the knife net fixing frame 2 to achieve an arc shape.

[0039] In solution B, metal clamps 3 are installed on both sides of the arc-shaped knife net 1. The metal clamps 3 are bent into a V-shape and are pressed by a clamp or welded to the arc-shaped knife net 1 by laser and wrapped to shape.

[0040] The metal clamping plate 3 is provided with convex points 6 and circular holes 7 on both sides. The convex points 6 and circular holes 7 are riveted and fixed to the arc-shaped knife net 1 and the arc-shaped knife net 1 is correspondingly shaped and fixed in sections to avoid rebound.

[0041] The material of the arc knife net 1 is SUS301EH. After being etched into a mesh, it is placed in a mold to be formed into an arc. In addition, the material of the metal clamping plate 3 is SUS301 and is punched into a V shape. After bending, it will be clamped at both ends of the arc knife net 1, and then installed on the knife net fixing frame 2, and fixed into a whole by 6 rubber columns.

[0042] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the technical principles used. Within the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by technicians familiar with this technical field should be included in the protection scope of the present invention.

Claims

1. A reciprocating razor head, characterized in that: It comprises an arc-shaped knife net and a knife net fixing frame, wherein the arc-shaped knife net is formed by bending a flat knife net by upper and lower molds of a mold with a full circle R in the transverse section and an ellipse in the longitudinal section, the longitudinal section of the top of the arc-shaped knife net is an ellipse or a parabola R, or a non-full circle R, the transverse section of the top of the arc-shaped knife net is a full circle R and the left and right sides of the vertex are nonlinear shapes, and the lower end of the arc-shaped knife net is connected to the knife net fixing frame to form an arc-shaped nonlinear knife head; The periphery of the arc-shaped blade net is formed by injection molding and wrapped in one piece. Alternatively, metal clamps are installed on both sides of the arc-shaped knife net, and the metal clamps are bent into a V-shape and pressed by a clamp or welded to the arc-shaped knife net by laser and wrapped to shape.

2. A reciprocating razor head according to claim 1, characterized in that: The arc knife net is composed of a flat knife net placed in the upper and lower molds of a fixture with a full circle R in the horizontal section and an elliptical longitudinal section. The upper and lower molds of the fixture are heated by electric heating tubes. The material is heated to deform it into the designed arc shape, and the horizontal and longitudinal cross-sectional shapes are integrally molded.

3. A reciprocating razor head according to claim 1, characterized in that: A plurality of positioning holes are arranged on both sides of the arc-shaped knife net, and the positioning holes are used for positioning during mold injection and fixture shaping.

4. A reciprocating razor head according to claim 2, characterized in that: The sealing positions on both sides of the arc-shaped knife net are formed with pits, which are flush with the inner arms of the knife net fixing frame and are used to separate from the mold. The step areas on both sides of the middle of the knife net fixing frame are used to wrap the arc-shaped knife net and prevent the arc-shaped knife net from separating.

5. A reciprocating razor head according to claim 2, characterized in that: The two sides of the metal clamp are provided with convex points and circular holes, the convex points and the circular holes are riveted to the arc-shaped knife net and the arc-shaped knife net is correspondingly shaped and fixed in sections to avoid rebound.

6. A reciprocating razor head according to claim 1, characterized in that: The arc-shaped nonlinear cutter head is used singly or in parallel.

7. A reciprocating razor head according to claim 1, characterized in that: The two sides of the knife net fixing frame are formed with spring-loaded limiters to prevent them from falling out.

8. The reciprocating razor head according to claim 1, characterized in that: A metal fixing sheet is arranged at the lower end of the knife net fixing frame, and the metal fixing sheet is fixed to the knife net fixing frame by buckles to avoid deformation.

9. The reciprocating razor head according to claim 1, characterized in that: A moving knife holder is provided on the inner side of the arc-shaped knife net, and an arc-shaped moving knife is mounted on the moving knife holder. Moving knife springs are connected between the two sides of the moving knife holder and the metal fixing sheet.

10. The reciprocating razor head according to claim 1, characterized in that: Reset springs are installed on both sides of the knife net fixing frame.

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