CN110103263A - A kind of electric rotary is plucked eyebrows blade - Google Patents

Abstract

The invention relates to a rotary electric eyebrow trimming blade, which includes a fixed knife with an oblique L-shaped cutting edge, and a moving knife matched with the fixed knife. The head of the fixed knife is a hollow circular platform. The fitting surface of the knife head intersects with the side in an arc shape, the moving knife is set in the inner cavity of the fixed knife, and fits with the inner wall of the fixed knife; the moving knife rotates inside the fixed knife under the action of the driving mechanism , cooperate with the cutting edge of the fixed knife to realize cutting; the moving knife includes a base body, and a blade is arranged on the base body. Beneficial effects of the present invention: (1) The blade of the moving knife and the cutting edge of the fixed knife form a shearing angle, the cutting is sharp, it is not easy to get stuck, and the comfort is improved; (2) S-shaped bending structure is adopted to enhance the stability of the blade of the moving knife The cutting rigidity and strength improve the cutting effect; (3) The moving knife is integrally formed to save materials, reduce assembly steps and improve efficiency.

Description

A rotary electric eyebrow trimming blade

technical field

The invention relates to a rotary electric eyebrow trimming blade assembly.

Background technique

When the rotary electric eyebrow trimmer is in operation, the movable and fixed blades need to provide a certain shear force to ensure that the eyebrows can be cut off smoothly. The existing movable blades of eyebrow trimmers mostly use the flat-plate blanking process, and the burr surface is used as the edge of the movable blade. On the surface, the knife edge of the fixed knife is also perpendicular to the hair, so it is difficult to have a reasonable cutting front angle, and the sharpness is difficult to guarantee; in addition, the existing eyebrow trimming and moving knives are generally two or more pieces assembled on plastic parts by springs, which is troublesome to install ;At the same time, the moving knife uses a bending feature as a barb to limit the position. The instability of the bending feature leads to the unstable limit size of the moving knife, and the interference force between the moving knife and the fixed knife is also unstable during assembly, and it is difficult to install. In order to reduce the difficulty of the manufacturing process, some of the existing parts are realized by adopting the design of the moving knife edge to avoid the rounded corner of the fixed knife in order to reduce the difficulty of the manufacturing process, which reduces the effective cutting work area and is easy to cause sharpness. Poor, the cutting edge of the moving knife forms two independent cutting edges, and there is a non-working zone in the middle, where the eyebrows are easily caught, causing pain and reducing comfort.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a rotary electric eyebrow trimming blade that is easy to install, sharp in cutting and highly comfortable.

The technical scheme that the present invention solves its technical problem is:

A rotary electric eyebrow trimming blade, comprising a fixed knife with an inclined L-shaped cutting edge, and a moving knife matched with the fixed knife, the head of the fixed knife is a hollow circular platform, and the head of the fixed knife The fitting surface and the side intersect in an arc shape, the moving knife is set in the inner cavity of the fixed knife, and fits with the inner wall of the fixed knife; the moving knife rotates inside the fixed knife under the action of the driving mechanism, and the fixed knife The cutting opening of the knife cooperates to realize cutting; the moving knife includes a base body, and a blade is arranged on the base body.

Further, the blade is bent in an S shape; the blade extends upward from the base to form a first bending portion, a second bending portion, and a third bending portion; the first bending portion and the base 90 degrees, the second bending part forms an obtuse angle with the first bending part, the third bending part forms an obtuse angle with the second bending part, and the bend of the third bending part The folding direction is opposite to the direction of the second bending part.

Further, the top end of the third bending portion is concavely provided with a shearing surface.

Further, the S-shaped bending direction of the blade is opposite to the rotation direction of the movable knife.

Further, the cutouts are arranged at the intersections of the arcs, and are distributed in a circle.

Further, the base of the movable knife is connected with a plastic part by riveting, the bottom of the plastic part is provided with an installation groove connected with the driving mechanism, and the outer wall of the plastic part cooperates with the inner wall of the fixed knife, and is inserted into the fixed knife. in the cavity of the knife.

Further, the base body is provided with a positioning hole, and the end surface of the plastic part is provided with a positioning column matching the positioning hole.

Further, the side of the plastic part is provided with a hair leakage groove corresponding to the position of the blade.

Further, the installation groove and the end surface of the plastic part transition through a circular arc.

When the present invention is in use, the driving mechanism drives the plastic part to rotate, so that the movable knife rotates, and the blade of the movable knife is close to the inner wall of the fixed knife. When the cutting surface enters the cutting part, the inclined blade of the moving knife forms a cutting angle with the cutting edge of the fixed knife, and the hair follows the slope to the arc and then to the top surface, completing the process from rough shaving to fine shaving. This process is a continuous process. The process can remove hair smoothly and comfortably, improving comfort.

Beneficial effects of the present invention: (1) The blade of the moving knife and the cutting edge of the fixed knife form a shearing angle, the cutting is sharp, it is not easy to get stuck, and the comfort is improved; (2) S-shaped bending structure is adopted to enhance the stability of the blade of the moving knife The cutting rigidity and strength improve the cutting effect; (3) The moving knife is integrally formed to save materials, reduce assembly steps and improve efficiency.

Description of drawings

Figure 1 is an exploded view of the invention.

Figure 2 is a structural diagram of the moving knife.

Figure 3 is a structural diagram of the plastic part.

Mark on the drawings: 1. Fixed knife, 2. Moving knife, 3. Plastic parts, 4. Cutting surface, 101. Cutting opening, 201. Base body, 202. Blade, 2011. Positioning hole, 2021. First bend Folding part, 2022, the second bending part, 2023, the third bending part, 301, positioning column, 302, hair leakage groove, 303, installation groove.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 3, a rotary electric eyebrow trimming blade includes a fixed knife 1 with a cutting edge 101 that is obliquely L-shaped, and a moving knife 2 that cooperates with the fixed knife 1. The upper part is a hollow circular table shape, the bonding surface of the head of the fixed knife 1 intersects with the side in an arc shape, the movable knife 2 is arranged in the inner cavity of the fixed knife 1, and is bonded to the inner wall of the fixed knife 1; The movable knife 2 rotates inside the fixed knife 1 under the action of the driving mechanism, and cooperates with the cutting edge of the fixed knife 1 to realize cutting; the movable knife 2 includes a base 201 on which a blade 202 is provided. The base body 201 is directly cut and shaped on one side and then bent to form the blade 202 . The blade 202 and the base 201 are integrally formed, which can maximize the use of materials, save the material of the base 201, enhance the rigidity of the bottom plate, increase the strength of the base 201, and effectively increase the strength of the blade 202, simplifying the installation steps of the blade 202 and the base 201 . The incision is oblique L-shaped, which is conducive to the entry and veneer of hair.

In this embodiment, the blade 202 is bent in an S-shape; the blade 202 extends upward from the base 201 to form a first bending portion 2021 , a second bending portion 2022 and a third bending portion 2023 ; A bent portion 2021 forms a 90-degree angle with the base 201, the second bent portion 2022 forms an obtuse angle with the first bent portion 2021, and the third bent portion 2023 forms an obtuse angle with the second bent portion. 2022 is an obtuse angle, and the bending direction of the third bending portion 2023 is opposite to that of the second bending portion 2022 . The cutting end of the blade 202 is consistent with the third bending portion 2023 in an inclined state, and forms a cutting angle with the cutting opening 101 of the fixed knife 1 to improve the cutting effect.

In this embodiment, the top end of the third bending portion 204 is concavely provided with a shearing surface 4 . The shearing surface 4 is disposed on the surface of the third bending portion 204 and is inclined together with the third bending portion 204 .

In this embodiment, the S-shaped bending direction of the blade 202 is opposite to the rotation direction of the movable knife 2 . The blade 202 is supported and strengthened by the S-shaped bending, and the shear rigidity and strength of the blade 202 are increased.

In this embodiment, the cutouts 101 are arranged at the intersections of the arcs, and are distributed in a circle. The arcs intersect to make the fixed knife 1 fit the skin and improve the skin feel.

In this embodiment, the base 201 of the movable knife 2 is connected with a plastic part 3 by riveting, the bottom of the plastic part 3 is provided with a mounting groove 303 connected with the driving mechanism, and the outer wall of the plastic part 3 is connected to the The inner wall of the fixed knife 1 cooperates and is inserted into the inner cavity of the fixed knife 1 . The driving mechanism is installed in the playing card installation groove 303 to drive the plastic part 3 to rotate, thereby driving the rotation of the movable knife 2 .

In this embodiment, the base body 201 is provided with a positioning hole 2011 matched with the positioning column 301 .

In this embodiment, the side of the plastic part 3 is provided with a hair leakage groove 302 corresponding to the position of the blade 202 .

In this embodiment, the installation groove 303 and the end surface of the plastic part 3 transition through a circular arc. The arc surface is beneficial to guide and install the driving mechanism.

In this embodiment, there are three blades 202 distributed on the base body 201 in a circumferential manner. When rotating, the three blades 202 just locate a cylindrical surface. According to the geometric principle of a surface determined by three points, a stable and reliable relationship is formed, which is beneficial for the moving knife 1 to cling to the inner wall of the fixed knife when rotating, improving the sharpness of the product.

When this embodiment is in use, the driving mechanism drives the plastic part to rotate, so that the moving knife rotates, and the blade of the moving knife is close to the inner wall of the fixed knife. The shearing surface enters the shearing part, the inclined blade of the movable knife forms a shearing angle with the shearing edge of the fixed knife, and the hair follows the slope to the arc and then to the top surface, completing the process from rough shaving to fine shaving. A continuous process that removes hair smoothly and comfortably for enhanced comfort.

The advantage of this embodiment is that (1) the cutting edge of the moving knife and the cutting edge of the fixed knife form a cutting angle, the cutting is sharp, it is not easy to get stuck, and the comfort is improved; (2) the S-shaped bending structure is used to enhance the stability of the moving knife blade The cutting rigidity and strength improve the cutting effect; (3) The moving knife is integrally formed to save materials, reduce assembly steps and improve efficiency.

The above is only a preferred embodiment of the present invention, but the scope of protection of the invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention are all Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. The blade 1. a kind of electric rotary is plucked eyebrows is in the stationary knife of oblique L-type including sheared edge sword, and dynamic with stationary knife cooperation Knife, the stationary knife head are in hollow circular platform type, and the binding face on the stationary knife head and the arc-shaped intersection in side, the moving knife are set It sets in stationary knife inner cavity, inner surface fitting is bonded with stationary knife；The moving knife under the action of the drive mechanism in stationary knife inner rotation, with Shearing is realized in the sheared edge cooperation of stationary knife；

   It is characterized by: the moving knife includes matrix, described matrix is equipped with blade.
2. The blade 2. electric rotary according to claim 1 is plucked eyebrows, it is characterised in that: the S-type bending of blade；It is described Blade upwardly extends respectively the first bending part, the second bending part and third bending part from matrix；First bending part with Described matrix is in 90 degree, second bending part and first bending part in obtuse angle, the third bending part and described second In obtuse angle, and the overbending direction of the third bending part is contrary with the second bending part for bending part.
3. The blade 3. electric rotary according to claim 2 is plucked eyebrows, it is characterised in that: third bending part top is recessed There is shear surface.
4. The blade 4. electric rotary according to claim 1 is plucked eyebrows, it is characterised in that: the S type bending direction of the blade It is opposite with moving knife direction of rotation.
5. The blade 5. electric rotary according to claim 1 is plucked eyebrows, it is characterised in that: the sheared edge of the oblique L-type is arranged In arc intersection, circumferentially it is distributed.
6. The blade 6. electric rotary according to claim 1 is plucked eyebrows, it is characterised in that: pass through riveting on the matrix of the moving knife Pressure is connected with plastic part, and the plastic part bottom is equipped with the mounting groove connecting with driving mechanism, and the plastic part outer wall and institute The cooperation of stationary knife inner wall is stated, is inserted into the inner cavity of stationary knife.
7. The blade 7. electric rotary according to claim 1 is plucked eyebrows, it is characterised in that: described matrix is equipped with location hole, Plastic part end face is equipped with the positioning column cooperated with the location hole.
8. The blade 8. electric rotary according to claim 6 is plucked eyebrows, it is characterised in that: the plastic part side and blade position It sets corresponding be equipped with and leaks hair slot.
9. 9. blade according to claim 6 of rotatably plucking eyebrows, it is characterised in that:, the mounting groove and the plastic part End face passes through arc transition.
10. 10. blade according to claim 1 of rotatably plucking eyebrows, it is characterised in that: there are three the blades, is circumferentially distributed On the matrix.