CN114043535A - Eyebrow trimming pen and cutter head thereof and manufacturing method thereof - Google Patents

Abstract

The invention discloses a cutter head of a eyebrow shaping pen, which comprises a cutter head body, wherein the top of the cutter head body is provided with an inclined top, a blade is arranged on the cutter head body, a supporting surface used for supporting the skin during cutting is formed on the inclined top, the supporting surface is inclined relative to a plane H vertical to an axis L of the cutter head body, in a use state, an acute angle is formed between the blade and the supporting surface, and the cutting edge of the blade is exposed from the inclined top and can be scraped to the skin when the supporting surface moves along the skin. The invention also discloses a method for manufacturing the tool bit of the eyebrow trimming pen. The invention also discloses an eyebrow shaping pen, which comprises a pen-shaped handle and the tool bit of the eyebrow shaping pen, wherein the tool bit is fixedly or detachably arranged at one end of the handle in a mode that the axis L of the tool bit body is superposed or basically superposed with the axis of the handle.

Description

Eyebrow trimming pen and cutter head thereof and manufacturing method thereof

[ technical field ] A method for producing a semiconductor device

The invention relates to a cutter head of an eyebrow pencil, a method for manufacturing the cutter head of the eyebrow pencil and the eyebrow pencil.

[ background of the invention ]

The top surface of the existing eyebrow trimming pen is basically of a flat-top structure, the blade is protruded above the flat top, and when in use, the eyebrow trimming pen is usually used for shaving hair by moving the top surface close to the skin, so that the eyebrow trimming pen is generally held by hands at an angle basically vertical to the skin to shave hair, and the eyebrow trimming pen can shave hair on finger joints conveniently and hair of other parts which do not need to face a mirror. However, when the eyebrow trimming pen is used for trimming eyebrows facing a mirror, the user can easily block the sight when holding the eyebrow trimming pen by fingers, a proper view angle and a handle holding posture need to be adjusted particularly, the use angle is not right and the cutting performance is poor when the view is adjusted frequently, the posture and the view need to be adjusted repeatedly, and the use performance of the product is not affected finally, but the use experience of the product is undoubtedly reduced. In addition, the existing eyebrow plucker is easy to hurt people when in use, has poor safety, needs to be operated with special care, and has poor use experience. The details are determined to be successful or not, the use experience of the user is a key for gaining the user recognition, and the invention is made based on the purpose for further improving the performance and the use experience of the eyebrow trimming pen.

[ summary of the invention ]

The invention aims to solve the technical problem of providing the eyebrow trimming pen tool bit which has the characteristics of simple structure, good use hand feeling, smooth pen holding operation and sharp cutting, and can trim eyebrow, carve characters on the head, scrape body hair on small parts such as finger joints and scrape body hair on other parts needing to be trimmed.

In order to solve the technical problem, the cutter head of the eyebrow shaping pen comprises a cutter head body, wherein an inclined top is arranged at the top of the cutter head body, a blade is arranged on the cutter head body, a supporting surface used for supporting the skin during cutting is formed on the inclined top, the supporting surface is inclined relative to a plane H vertical to an axis L of the cutter head body, in a use state, an acute angle is formed between the blade and the supporting surface, and the cutting edge of the blade is exposed from the inclined top and can scrape the skin when the supporting surface moves along the skin.

According to the eyebrow shaping pen bit, the oblique top faces forwards and backwards, the front face and the back face of the blade are intersected to form the cutting edge, the two side faces at the two ends of the cutting edge are located in the left and right directions of the bit body, and in a use state, the direction of one side of the blade, which forms an acute angle with the supporting face, is in the front.

According to the eyebrow shaping pen bit, the cutting edge of the blade is deviated from the center of the inclined top and is arranged in front.

According to the eyebrow shaping pen tool bit, the front end of the tool bit body is provided with the comb teeth located on the front side of the blade and used for combing hair.

According to the eyebrow shaping pen tool bit, when the oblique top is used as a reference, the comb teeth are lower than the oblique top, and in a use state, the cutting edge of the blade is higher than the tops of the comb teeth and slightly higher than the oblique top.

According to the cutter head of the eyebrow shaping pen, the hair discharging cavity is formed between the comb teeth and the cutter blade and communicated with the tooth gaps on the two sides of each comb tooth, and the hair discharging gaps are formed between the cutter blade and the upper ends of the comb teeth and used for allowing scraped hair to enter the hair discharging cavity.

In the use state, the highest part of the cutting edge of the blade is higher than the inclined top by less than 0.10mm, and the cutting edge of the blade is higher than the corresponding comb teeth by more than 0.02mm and less than 0.30mm at the position opposite to the comb teeth.

According to the eyebrow shaping pen bit, the blade is bent into an arc shape, the cutting edge of the blade is of a corresponding arc structure, and the concave arc surface faces the direction of one side of the blade, which forms an acute angle with the supporting surface.

When the oblique top is taken as a reference, the middle of the cutting edge of the blade is high, the left side and the right side of the cutting edge of the blade are low, the left end and the right end of the cutting edge are lower than the oblique top, the middle part of the cutting edge is higher than the oblique top, and a sunken cavity for exposing one end of the blade with the cutting edge is formed in the oblique top and positioned on the back surface of the blade.

The utility model provides a tool bit of eyebrow pencil, the tool bit body includes the enclosing cover to and fix in the inboard preceding knife rest of enclosing cover and back knife rest, be equipped with the first arc portion of evagination on the preceding knife rest, be equipped with the second arc portion of indent on the knife rest in the back, thereby first arc portion compresses tightly the blade on second arc portion makes the blade crooked become the arc.

According to the eyebrow shaping pen tool bit, the blade is fixed on the tool bit body and is always in a use state on the tool bit body; or the blade can be connected in the cutter head body in a lifting way, and the lifting state of the blade is the using state.

The cutter head of the eyebrow shaping pen is characterized in that the support surface is inclined at an angle A of 15-70 degrees relative to a plane H perpendicular to the axis L of the cutter head body.

The eyebrow shaping pen head is characterized in that the top of the inclined top is lower in front and higher in back; or the pitched roof is high in front and low in back.

The invention also aims to provide a method for manufacturing the cutter head of the eyebrow pencil, which has the characteristics of simple process and easy production and manufacture.

In order to solve the technical problem, the invention provides a method for manufacturing the eyebrow pencil sharpener, which comprises the steps of providing a thin-sheet flat blade, machining a linear cutting edge at one end of the blade, machining a rectangular groove at the other end of the blade, machining a positioning hole in the middle of the blade, wherein the rectangular groove and the positioning hole are symmetrical to the center of the blade,

providing a rear inner knife rest, wherein an inner top and a rear main body which are arranged in an L shape are arranged on the rear inner knife rest, a second arc-shaped part which is concave inwards is arranged on the inner top, ribs which are matched with the rectangular grooves are arranged at the intersection of the inner top and the rear main body, a abdicating groove is arranged on the inner top, the rear inner knife rest is placed upwards, the blade leans against the inner top, the rectangular grooves are clamped on the ribs to position the blade, and at the moment, the position of the positioning hole corresponds to the abdicating groove,

providing a front inner tool rest, wherein a first arc-shaped part protruding outwards is arranged on the front inner tool rest, a positioning column matched with the positioning hole and a rib positioning groove matched with the rib are arranged on the first arc-shaped part,

a buckling structure buckled with the front inner tool rest and the rear inner tool rest is arranged between the front inner tool rest and the rear inner tool rest, the buckling structure comprises a buckling groove and a buckling flange which are matched with each other, and a column hole and a plunger which are in interference fit with each other,

the upper end of the front inner knife rest faces downwards obliquely, the positioning column is inserted into the positioning hole obliquely, the front inner knife rest is rotated to be buckled on the rear inner knife rest after the blade is pressed on the second arc part by the first arc part, the assembly of the front inner knife rest and the rear inner knife rest is completed, the blade is extruded between the first arc part and the second arc part to obtain an inner core, the upper part of the inner core forms an upper assembly section,

the outer cover is provided, an upper assembling hole is formed in the upper portion of the outer cover, the inner core is inserted into and assembled into the outer cover from bottom to bottom and fixed, the upper assembling section and the upper assembling hole are in interference fit in the front-back direction, after assembly, the outer cover holds the front inner knife rest and the upper portion of the rear inner knife rest tightly, and the blades are extruded into an arc shape through the first arc-shaped portion and the second arc-shaped portion.

In the method for manufacturing the eyebrow pencil sharpener, after the first arc-shaped portion and the second arc-shaped portion extrude the blade into an arc shape and fix the blade, one surface of the blade is attached to the first arc-shaped portion, and the other surface of the blade is provided with a gap between the middle part and the second arc-shaped portion, and the left side and the right side are attached to the second arc-shaped portion.

The invention aims to solve another technical problem of providing an eyebrow shaping pen which has the characteristics of simple structure, good use hand feeling, smooth pen holding operation and sharp cutting, and can be used for shaping eyebrows, carving characters on the head, scraping body hair on small parts such as finger joints and scraping body hair on other parts needing to be refined.

In order to solve the technical problem, the eyebrow shaping pen comprises a pen-shaped handle and the tool bit of the eyebrow shaping pen, wherein the tool bit is fixedly or detachably mounted at one end of the handle in a mode that the axis L of the tool bit body is overlapped or basically overlapped with the axis of the handle.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, through the arrangement of the inclined top, the blade and the supporting surface formed by the inclined top are arranged at an acute angle, when in hair shaving, the inclined top moves along the skin, so that the blade is inclined relative to the skin to form an inclined cutting angle, and the cutting sharpness is ensured. With this tool bit dress on the handle of repairing the eyebrow pencil, during the hair shaving, the top is pasting skin to one side to the handle, avoids the finger to block the head of this tool bit when holding the handle to for the head of this tool bit provides an open field of vision, conveniently sees the position of scraping hair that it was located, consequently, when guaranteeing to shave the sharpness, still has a comfortable posture and the field of vision of repairing the eyebrow, the user uses and experiences well.

2. The oblique top faces forwards and backwards, the two side faces at the two ends of the cutting edge are positioned in the left and right directions, after the handle is arranged, the oblique top is pressed on the skin and moves in the direction of the oblique handle or the opposite direction, the central line of the cutting edge of the blade can be parallel or basically parallel to the moving direction, the cutting edge of the blade moves transversely, one safety is good, and the other cutting range can be better when the head of the cutter head has a small volume.

3. Since the cutting edge of the blade is pressed below the slanted top during cutting, the outer edge of the top of the head body is seen when shaving is moved, and the cutting edge of the blade is arranged forward and deviated from the center of the slanted top, hysteresis between the eye-seen position and the shaving position during moving shaving is reduced, and the shaving precision is further improved.

4. The broach is less than the pentroof, and in the user state, the blade edge of blade is higher than the top of broach, and slightly exceeds the pentroof, when guaranteeing to shave the performance, guarantees the security of blade, is difficult to hinder the people.

5. Adopt curved blade, combine blade and holding surface to become the acute angle setting, when using the oblique top as the reference, the blade is high in the middle of the blade and left and right sides is low, and both ends are less than the oblique top about the blade, and the middle part of blade is higher than the oblique top. The left side and the right side of the cutting edge of the blade are lower than the inclined top, the left corner and the right corner of the blade are hidden under the inclined top, and when a user does not move in a mode that the cutting edge of the blade is transverse, the two corners are prevented from scratching skin when moving in the direction in which the two corners are located; the middle part of the cutting edge is higher than the inclined top, particularly the cutting edge of the blade is higher than the comb teeth at the corresponding position relative to the comb teeth, in addition, a sunken sinking cavity for exposing one end of the blade with the cutting edge is arranged on the back of the blade on the inclined top, so that the upper end of the whole blade can be exposed, and only the middle part of the cutting edge is higher than the inclined top, when the blade is obliquely pressed on the skin, the skin on the back of the blade can slightly extrude the protrusion in the sinking cavity, and the cutting edge can better contact the skin for cutting. Therefore, the cutter head has better cutting performance when moving in the correct direction, and can avoid scratching the skin when moving from a plurality of different directions, thereby having high safety.

6. The head volume of the cutter head can be smaller, and small-area parts and accurate hair trimming are realized.

7. The invention has simple structure, simple manufacturing process and low production cost.

[ description of the drawings ]

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a sectional view of an embodiment of a eyebrow pencil according to the present invention, in which a tip of the pencil is low at the front and high at the rear;

FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 when placed with the angle top facing upward;

FIG. 3 is a front view of an embodiment of the eyebrow pencil according to the present invention, wherein the tip of the pencil is low at the top and high at the back;

FIG. 4 is a schematic view showing the use of an embodiment of the eyebrow pencil with a lower tip front and a higher tip back in the razor head for shaving hair according to the present invention;

FIG. 5 is a schematic view of an embodiment of a eyebrow pencil with a tool tip having a planar top with a lower front portion and a higher rear portion;

FIG. 6 is a schematic view of an embodiment of a eyebrow pencil according to the present invention, in which the tip has an outer convex curved top with a lower front portion and a higher rear portion;

FIG. 7 is a schematic view of an embodiment of a eyebrow pencil with a tool tip having a concave spherical top with a low front and a high rear;

FIG. 8 is a schematic view of an embodiment of a eyebrow pencil according to the present invention, in which the pencil tip has a concave curved top with a low front and a high rear;

FIG. 9 is a sectional view of an embodiment of the eyebrow pencil according to the present invention, in which the tip of the pencil is high at the front and low at the rear;

FIG. 10 is a top view of the embodiment of FIG. 9;

FIG. 11 is a schematic view showing the use of an embodiment of the eyebrow pencil with a tip having a high front and a low rear with an inclined top for shaving hairs;

FIG. 12 is a schematic view of an embodiment of a eyebrow pencil with a tool tip having a planar slanted top with a high front and a low rear;

FIG. 13 is a schematic view of an embodiment of a eyebrow pencil with a tool tip having an outer convex cambered top with a high front and a low rear according to the present invention;

FIG. 14 is a schematic view of an embodiment of a eyebrow pencil with a tool tip having a concave spherical top with a high front and a low rear;

FIG. 15 is a schematic view of an embodiment of a eyebrow pencil according to the present invention, in which the tip has a concave curved top with a high front and a low rear;

FIG. 16 is a schematic view of the structure of a flat blade;

FIG. 17 is a schematic view of a curved blade;

FIG. 18 is a schematic view of the rear inner cutter carrier in a lowered position;

FIG. 19 is a schematic view of the placement of a blade on the rear inner blade carrier;

FIG. 20 is a schematic view of the front inner blade carrier;

FIG. 21 is a schematic view of the assembly of the front inner blade carrier with the rear inner blade carrier;

FIG. 22 is a schematic view of the front inner blade carrier assembled with the rear inner blade carrier to form the inner core;

fig. 23 is a schematic view of the first and second arcuate portions squeezing the blade into an arcuate shape.

[ detailed description ] embodiments

The invention is further described below with reference to the accompanying drawings:

the eyebrow pencil sharpener shown in fig. 1-23 comprises a cylindrical structure body 1, wherein the top of the body 1 is provided with an inclined top 2, the body 1 is provided with a blade 3, the inclined top 2 is provided with a support surface 4 for supporting the skin during cutting, the support surface 4 is inclined relative to a plane H perpendicular to an axis L of the body 1, in a use state, the blade 3 and the support surface 4 form an acute angle, and a cutting edge 31 of the blade 3 is exposed from the inclined top 2 and can scrape the skin when the support surface 4 moves against the skin.

As shown in fig. 1, 4, 9 and 11, preferably, the blade 3 is fixed on the cutter head body 1, the blade 3 is always in a use state on the cutter head body 1, and a cap can be added on the eyebrow trimming pen to protect the blade, so as to avoid the cutting edge from being damaged during transportation or storage.

Of course, the blade 3 can also be connected in the tool bit body 1 in a liftable manner, and the blade 3 is in a use state when being lifted, and a lifting structure is adopted, so that the blade 3 can be retracted to protect the cutting edge when not in use. As for the structure of lifting the blade 3, reference may be made to patent No. CN 202022181675.4.

When in hair shaving, the inclined top 2 moves along the skin, the supporting surface 4 presses on the skin, and the blade is inclined relative to the skin to form an inclined cutting angle so as to ensure the cutting sharpness. As shown in fig. 4 and 11, the cutter head is mounted on the handle 10 of the eyebrow pencil. When scraping the body hair 7, the oblique top 2 is attached to the skin 6, and the handle 10 is inclined to one side, the head of the cutter head is prevented from being blocked when the handle 10 is held between the fingers, so that an open visual field is provided for the head of the cutter head, the hair scraping position where the cutter head is located is convenient to see, therefore, the razor is ensured to be sharp, meanwhile, a comfortable eyebrow shaping posture and a visual field are also provided, and the user experience is good. As shown in fig. 1 and 9, the supporting surface 4 is preferably inclined at an angle a of 15 ° to 70 °, preferably 20 ° to 60 °, relative to a plane H perpendicular to the axis L of the head body 1, and in this range, the eyebrow pencil is cut obliquely against the skin, and the eyebrow pencil has a good operability in view of the field of vision.

The acute angle formed by the blade and the supporting surface is controlled between 10 degrees and 80 degrees, preferably between 30 degrees and 60 degrees, so that when the supporting surface is not uniformly attached to the skin during cutting, if one side is slightly tilted, the blade can form an inclined cutting angle with the skin well.

As shown in fig. 1 and 9, preferably, the slanted top 2 is oriented forward and backward, the front and back of the blade 3 intersect to form a cutting edge 31, and two side surfaces at two ends of the cutting edge 31 are located in the left and right directions of the cutter head body 1, and as shown in fig. 3 and 10, in the use state, the direction of the side of the blade 3 forming an acute angle with the support surface 4 is forward. As shown in fig. 4 and 11, when the handle 10 is attached, the slanted ejecting part 2 is pressed against the skin to move in a direction in which the handle 10 is slanted or in a direction opposite to the direction in which the handle 10 is slanted, the center line of the cutting edge of the blade 3 can be parallel or substantially parallel to the moving direction, the cutting edge of the blade 3 is moved transversely, one is highly safe, and the other is highly effective in cutting the head with a small volume.

The head of the razor head is small in size, and although a small area and precise shaving have been achieved, the cutting edge 31 of the blade is pressed below the slanted top 2 during cutting, and since the outer edge of the top of the razor head body 1 is seen during moving shaving, in order to reduce the feeling of lag between the eye-seen position and the shaving position during moving shaving and further improve the shaving precision, as in the embodiment shown in fig. 1 to 15, the cutting edge 31 of the blade 3 is located off the center of the slanted top 2 and forward.

The front end of the cutter head body 1 is provided with comb teeth 5 positioned on the front side of the blade 3 and used for combing hair to guide the cutting position.

As shown in fig. 2, when the pitched roof 2 is used as a reference, the comb teeth 5 are lower than the pitched roof 2, and in a use state, the cutting edge of the blade 3 is higher than the tops of the comb teeth 5 and slightly higher than the pitched roof 2, so that the safety of the blade 3 is ensured while the shaving performance is ensured, and people are not easily injured. With the structure, as shown in fig. 1, 4, 9 and 11, the structure that the blade 3 is fixed on the cutter head body 1 to enable the blade 3 to be always in a use state is facilitated, and the structure and the cost are simplified.

Be equipped with between broach 5 and the blade 3 and arrange hair chamber 50, it communicates with each other with the insection 51 of every broach 5 both sides to arrange hair chamber 50, is convenient for with the cutting of the hair direction blade 3 that combs, also makes things convenient for the chad of arranging hair chamber 50 to fall out, be equipped with between the upper end of blade 3 and broach 5 and arrange hair seam 30, supply to scrape the hair and get into row hair chamber 50, through increasing row hair seam 30, make and be separated by a seam between blade 3 upper end and the broach 5, make blade 31 change skin in scraping to the hair and the dead skin that supply to scrape are crowded and are fallen row hair chamber 50, avoid the overstock to influence the cutting on blade 31.

When the oblique top 2 is taken as a reference, the height of the highest part of the cutting edge 31 of the blade 3, which is higher than the oblique top 2, is controlled to be less than 0.10mm, and preferably less than 0.05 mm; the height of the cutting edge 31 of the blade 3, which is higher than the comb teeth 5 at the corresponding position relative to the comb teeth 5, is controlled to be more than 0.02mm and less than 0.30mm, preferably more than 0.05mm and less than 0.20mm, so that the comb teeth 5 can effectively comb hair, meanwhile, the comb teeth 5 can effectively block the front of the blade 3, and when the pitched roof 2 is pressed on the skin to move, meat is prevented from being excessively squeezed and rolled into the front end of the blade 3 to scratch the skin, and the eyebrow trimming pen has good cutting safety and sharpness.

As shown in the embodiment of fig. 16, the blade 3 may be a flat plate type structure.

Of course, as shown in fig. 17, preferably, the blade 3 is curved into an arc shape, the cutting edge 31 is a corresponding arc structure, and the concave arc surface faces the direction of the acute angle between the blade 3 and the supporting surface 4, so as to effectively extend the total length of the cutting edge, and the arc-shaped cutting edge is more safe to contact with the skin and is not easy to pierce the skin.

By adopting the arc-shaped blade, the blade 3 and the supporting surface 4 are arranged at an acute angle, which is beneficial to realize that when the pitched roof 2 is taken as a reference, the middle of the cutting edge 31 of the blade 3 is high, the left side and the right side of the cutting edge 31 are low, the left end and the right end of the cutting edge 31 are lower than the pitched roof 2, and the middle part of the cutting edge 31 is higher than the pitched roof 2. The left and right sides of the cutting edge 31 of the blade 3 are lower than the inclined top 2, so that the left and right corners of the blade 3 at the two ends of the cutting edge are hidden under the inclined top 2, and when a user does not move in a mode that the cutting edge of the blade 3 is transverse, the two corners are particularly prevented from scratching the skin when moving in the direction in which the two corners are located; the middle part of the cutting edge 31 is higher than the inclined top 2, especially the cutting edge 31 of the blade 3 is higher than the comb teeth 5 at the corresponding position at the position opposite to the comb teeth 5, in addition, a sunken cavity 21 which is sunken and is used for exposing one end of the blade 3 with the cutting edge 31 is arranged on the inclined top 2 at the back of the blade 3, so that the upper end of the whole blade 3 can be exposed, only the middle part of the cutting edge is higher than the inclined top 2, when the inclined top 2 is pressed on the skin, the skin at the back of the blade 3 can slightly press the bulge in the sunken cavity 21, and the cutting edge 31 is better contacted with the skin for cutting.

According to different using modes, fig. 4 and 11 show a dragging type cutting and a pushing type cutting respectively.

As shown in fig. 9 to 15, in the push-type cutting embodiment, the oblique top 2 is high in front and low in back, so that the cutting can be performed by pushing the oblique top in the direction opposite to the oblique direction of the handle.

Preferably, as shown in the embodiments of fig. 1 to 8, the slanted top 2 is low in front and high in back, so that the cutting can be performed by sliding in the direction of the slanted handle, as shown in fig. 4, the cutting can be performed by dragging along the body hair such as skin and eyebrow, and the cutting safety is good.

As shown in fig. 1, the cutter head body 1 includes an outer cover 11, and a front inner cutter frame 12 and a rear inner cutter frame 13 fixed inside the outer cover 11, wherein a first arc-shaped portion 121 protruding outward is provided on the front inner cutter frame 12, a second arc-shaped portion 131 recessed inward is provided on the rear inner cutter frame 13, and the first arc-shaped portion 121 presses the blade 3 against the second arc-shaped portion 131 so as to bend the blade 3 into an arc shape, which is simple in structure and manufacturing process. Of course, the blade may be fixed to the cutter head body 1 by injection molding, or may be fixed to the cutter head body 1 by welding or bonding.

As shown in fig. 1 to 5 and 9 to 12, the surface of the slanted ejecting part 2 is a plane or substantially close to a plane, which is the supporting surface 4. Of course, as shown in fig. 6 and 13, the surface of the slanted ejecting portion 2 may also be a convex arc surface or a convex spherical surface, and the arc surface or the spherical surface is the supporting surface 4, or as shown in fig. 7, 8, 14, and 15, the surface of the slanted ejecting portion 2 is a concave arc surface or a concave spherical surface, and the surface formed by connecting the raised edges of the arc surface or the spherical surface is the supporting surface. The surface of the pitched roof can also be in other shapes and structures.

A method for manufacturing the eyebrow pencil tip described above comprises providing a thin flat blade having a thickness of less than 0.15mm, machining a linear cutting edge 31 at one end of the blade, machining a rectangular groove 32 at the other end of the blade, machining a positioning hole 33 in the middle of the blade, said rectangular groove 32 and positioning hole 33 being bilaterally symmetrical with respect to the center of the blade,

provide interior knife rest 13 in back, as shown in fig. 18, be equipped with interior top 132 and the back main part 133 that becomes the L type and arrange on the interior knife rest 13 in the back, be equipped with the second arc portion 131 of indent on the top 132 in the interior, the intersection of interior top 132 and back main part 133 is equipped with rib 134 with rectangular channel 32 matched with, be equipped with the groove of stepping down 135 on the top in the interior, put the interior knife rest 13 in the back up, lean on the blade on interior top 132, and rectangular channel 32 card is fixed a position the blade on rib 134, at this moment, the position of locating hole 33 and the groove of stepping down 135 are corresponding, as shown in fig. 19,

providing a front inner tool holder 12, as shown in fig. 20, a first arc-shaped part 121 protruding outwards is provided on the front inner tool holder 12, a positioning post 122 matching with the positioning hole 33 and a rib positioning groove 123 matching with the rib 134 are provided on the first arc-shaped part 121,

a buckling structure which is buckled with the front inner tool rest 12 and the rear inner tool rest 13 is arranged between the front inner tool rest 12 and the rear inner tool rest 13, the buckling structure comprises a buckling groove 136 and a buckling flange 124 which are matched with each other, and a column hole 137 and a plunger 125 which are in interference fit with each other,

as shown in fig. 21, the upper end of the front inner blade carrier 12 is inclined downward, the positioning post 122 is inserted into the positioning hole 33, after the first arc-shaped portion 121 presses the blade 3 against the second arc-shaped portion 131, the front inner blade carrier 12 is rotated to be fastened to the rear inner blade carrier 13, the assembly of the front inner blade carrier 12 and the rear inner blade carrier 13 is completed, and the blade 3 is pressed between the first arc-shaped portion 121 and the second arc-shaped portion 131, so as to obtain a core, as shown in fig. 22, the upper portion of the core forms an upper assembling section 14, by fastening of the fastening structure, the front inner blade carrier 12 and the rear inner blade carrier 13 are prevented from being automatically released, and the blade 3 is effectively clamped,

the outer cover 11 is provided, the upper part of the outer cover 11 is provided with an upper assembling hole 110, the inner core is inserted and assembled into the outer cover 11 from below and fixed, the upper assembling section 14 and the upper assembling hole 110 are in interference fit in the front and rear directions, after assembly, the outer cover 11 holds the upper parts of the front inner tool rest 12 and the rear inner tool rest 13 tightly, and the blade 3 is extruded into an arc shape through the first arc-shaped part 121 and the second arc-shaped part 131, as shown in fig. 1, the process is simple, the manufacturing is easy, and the manufacturing cost is low.

As shown in fig. 23, after the first arc-shaped portion 121 is larger than the second arc-shaped portion 131 in radius, and the first arc-shaped portion 121 and the second arc-shaped portion 131 extrude the blade 3 into an arc shape and fix the blade, one surface of the blade 3 is attached to the first arc-shaped portion 121, and on the other surface, a gap is formed between the middle of the blade 3 and the second arc-shaped portion 131, and the left side and the right side of the blade are attached to the second arc-shaped portion 131, so that the blade can be deformed always according to the shape of the arc surface on the first arc-shaped portion 121, the bending radian of the blade 3 is easy to control, and the blade is stable, reliable and simple in process.

The eyebrow pencil shown in fig. 4 and 11 comprises a pen-shaped handle 10, and the above-mentioned cutter head, which is fixedly or detachably mounted on one end of the handle 10 in such a manner that the axis L of the cutter head body 1 coincides or substantially coincides with the axis of the handle 10. The eyebrow trimming pen has the advantages that the pen-shaped structure is adopted, fingers can be conveniently held, the size of the head of the eyebrow trimming pen head can be smaller, and small-area parts and accurate hair trimming can be achieved.

Claims (18)

1. The utility model provides a tool bit of eyebrow pencil which characterized in that: including tool bit body (1), the top of tool bit body (1) is equipped with oblique top (2), be equipped with blade (3) on tool bit body (1), form one bearing surface (4) that are used for supporting on skin when the cutting on oblique top (2), this bearing surface (4) are for axis (L) the perpendicular plane (H) slope of tool bit body (1), and in the user state, become the acute angle setting between blade (3) and bearing surface (4), just blade (31) of blade (3) are exposed and can be scraped skin with blade (31) of blade (3) when bearing surface (4) are pasting the skin and are removed from oblique top (2).

2. The cutter head of the eyebrow pencil of claim 1, wherein: the utility model discloses a cutter head, including blade (1), oblique top (2), blade (3), blade body (1), blade (3) and supporting surface (4), the front and back orientation of oblique top (2), blade (3) are crossing formation blade (31) in the front and back, and two sides that are located blade (31) both ends then are located the left and right directions of tool bit body (1), and in the user state, the direction of blade (3) and supporting surface (4) one side that becomes the acute angle is preceding.

3. The cutter head of the eyebrow pencil of claim 2, wherein: the cutting edge (31) of the blade (3) deviates from the center of the inclined top (2) and is arranged in front.

4. The eyebrow pencil tip as claimed in claim 3, wherein: the front end of the cutter head body (1) is provided with comb teeth (5) positioned on the front side of the blade (3) and used for combing hair.

5. The eyebrow pencil tip as claimed in claim 4, wherein: when the oblique top (2) is used as a reference, the comb teeth (5) are lower than the oblique top (2), and in a use state, the cutting edge of the blade (3) is higher than the tops of the comb teeth (5) and slightly higher than the oblique top (2).

6. The cutter head of the eyebrow pencil of claim 5, wherein: be equipped with between broach (5) and blade (3) and arrange hair chamber (50), it communicates with each other with tooth seam (51) of every broach (5) both sides to arrange hair chamber (50), be equipped with between the upper end of blade (3) and broach (5) and arrange hair seam (30), the hair that supplies to scrape gets into row hair chamber (50).

7. The cutter head of the eyebrow pencil of claim 5, wherein: in the use state, the highest part of the cutting edge (31) of the blade (3) is higher than the inclined top (2) by less than 0.10mm, and the cutting edge (31) of the blade (3) is higher than the comb teeth (5) at the corresponding position by more than 0.02mm and less than 0.30mm at the position opposite to the comb teeth (5).

8. The cutter head of a eyebrow pencil according to any one of claims 1 to 7, wherein: the blade (3) is bent into an arc shape, the cutting edge (31) of the blade is of a corresponding arc structure, and the concave arc surface faces the direction of one side of the blade (3) and the supporting surface (4) which form an acute angle.

9. The cutter head of the eyebrow pencil of claim 8, wherein: when the oblique top (2) is taken as a reference, the middle of the cutting edge (31) of the blade (3) is high, the left side and the right side are low, two ends of the cutting edge (31) are lower than the oblique top (2), the middle part of the cutting edge (31) is higher than the oblique top (2), and a sunken cavity (21) for exposing one end of the blade (3) with the cutting edge (31) is formed in the oblique top (2) and is positioned on the back surface of the blade (3).

10. The cutter head of the eyebrow pencil of claim 8, wherein: tool bit body (1) includes enclosing cover (11) to and fix in enclosing cover (11) inboard preceding inner knife rest (12) and back inner knife rest (13), be equipped with first arc portion (121) of evagination on preceding inner knife rest (12), be equipped with second arc portion (131) of indent on back inner knife rest (13), thereby first arc portion (121) compress tightly blade (3) on second arc portion (131) and make blade (3) crooked become the arc.

11. The cutter head of a eyebrow pencil according to any one of claims 1 to 7 and 9 to 10, wherein: the blade (3) is fixed on the tool bit body (1), and the blade (3) is always in a use state on the tool bit body (1).

12. The cutter head of a eyebrow pencil according to any one of claims 1 to 7 and 9 to 10, wherein: the blade (3) is connected in the tool bit body (1) in a lifting manner, and the blade (3) is in a use state in a lifting manner.

13. The cutter head of a eyebrow pencil according to any one of claims 1 to 7 and 9 to 10, wherein: the angle A of inclination of the support surface (4) relative to a plane (H) perpendicular to the axis (L) of the tool bit body (1) is between 15 DEG and 70 deg.

14. The cutter head of a eyebrow pencil according to any one of claims 1 to 7 and 9 to 10, wherein: the inclined top (2) is low in front and high in back.

15. The cutter head of a eyebrow pencil according to any one of claims 1 to 7 and 9 to 10, wherein: the inclined top (2) is high in front and low in back.

16. A method of manufacturing the blade of the eyebrow pencil of claim 10, comprising:

providing a thin-sheet flat-plate-shaped blade, processing a linear cutting edge (31) at one end of the blade, processing a rectangular groove (32) at the other end of the blade, processing a positioning hole (33) in the middle of the blade, wherein the rectangular groove (32) and the positioning hole (33) are bilaterally symmetrical relative to the central line of the blade,

provide back inner cutter frame (13), be equipped with interior top (132) and back main part (133) that become the L type and arrange on back inner cutter frame (13), be equipped with the second arc portion (131) of indent on interior top (132), the junction of interior top (132) and back main part (133) is equipped with rib (134) with rectangular channel (32) matched with, interior top is equipped with groove of stepping down (135), with back inner cutter frame (13) face upward and put, lean on the blade on interior top (132), and rectangular channel (32) card is fixed a position the blade on rib (134), at this moment, the position of locating hole (33) with step down groove (135) corresponding,

providing a front inner tool rest (12), wherein a first arc-shaped part (121) protruding outwards is arranged on the front inner tool rest (12), a positioning column (122) matched with the positioning hole (33) and a rib position groove (123) matched with the rib (134) are arranged on the first arc-shaped part (121),

a buckling structure buckled with each other is arranged between the front inner cutter frame (12) and the rear inner cutter frame (13), the buckling structure comprises a buckling groove (136) and a buckling flange (124) which are matched with each other, and a column hole (137) and a plunger piston (125) which are in interference fit with each other,

the upper end of a front inner knife rest (12) is obliquely downward, a positioning column (122) is obliquely inserted into a positioning hole (33), the front inner knife rest (12) is rotated to be buckled on a rear inner knife rest (13) after a first arc-shaped part (121) presses a blade (3) on a second arc-shaped part (131), the assembly of the front inner knife rest (12) and the rear inner knife rest (13) is completed, the blade (3) is extruded between the first arc-shaped part (121) and the second arc-shaped part (131) at the same time, an inner core is obtained, and an upper assembling section (14) is formed at the upper part of the inner core,

the outer cover (11) is provided, an upper assembling hole (110) is formed in the upper portion of the outer cover (11), the inner core is inserted into the outer cover (11) from the bottom and fixed, the upper assembling section (14) and the upper assembling hole (110) are in interference fit in the front-rear direction, the outer cover (11) holds the upper portions of the front inner tool rest (12) and the rear inner tool rest (13) tightly after assembly, and the blade (3) is extruded into an arc shape through the first arc-shaped portion (121) and the second arc-shaped portion (131).

17. The method for manufacturing the eyebrow pencil blade according to claim 16, wherein after the first curved portion (121) and the second curved portion (131) press the blade (3) in a curved shape and fix it, one surface of the blade (3) is adhered to the first curved portion (121) and the other surface thereof has a middle portion with a gap from the second curved portion (131) and left and right sides are adhered to the second curved portion (131).

18. The utility model provides a eyebrow pencil which characterized in that: comprising a pen-shaped handle (10), and a blade head of the eyebrow pencil of any one of claims 1 to 15, which is fixedly or detachably mounted on one end of the handle (10) in such a manner that an axis (L) of a blade head body (1) coincides or substantially coincides with an axis of the handle (10).

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