CN210307911U

CN210307911U - Personal care trimmer

Info

Publication number: CN210307911U
Application number: CN201921182314.2U
Authority: CN
Inventors: 张涛
Original assignee: Individual
Current assignee: Specialife Zhuhai Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-14
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a personal care clipping machine, tool bit combination includes: the fixed cutter is provided with a plurality of V-shaped through grooves in a straight line arrangement; the movable knife limiting part is fixed on the base plate of the fixed knife and combined with the fixed knife to form a fixed knife combination; the movable cutter is provided with a plurality of V-shaped through grooves in a straight line arrangement and is used for matching with the V-shaped through grooves on the fixed cutter so as to cut hair; a positioning through hole is arranged on the substrate, and a plurality of fixing holes are arranged around the positioning through hole; the movable knife driving part is combined with the movable knife to form a movable knife combination; the movable blade limiting piece comprises a rectangular through groove, wherein a plurality of limiting bones are arranged on the long edges of two sides of the through groove and used for guiding the movable blade limiting piece; the knife pressing spring comprises a pressing part which extends linearly, and two elastic arms which are respectively bent and extended from two ends of the pressing part, and the pressing part presses against the base plate of the movable knife driving part; the two elastic arms are respectively landed in the two supporting grooves of the movable blade limiting piece. The utility model discloses can satisfy the needs of specialty haircut well.

Description

Personal care trimmer

Technical Field

The utility model relates to a personal care device, in particular to a hair trimmer.

Background

Hair trimmers generally comprise: the cutter head assembly is used for installing a machine shell of the cutter head assembly, and a motor assembly and a power supply assembly which are arranged in the machine shell and used for driving the cutter head assembly to act. The cutter head combination comprises a movable cutter combination, a fixed cutter combination and a cutter fixing support combination. The assembly process of the tool bit assembly generally comprises: firstly, the movable knife is arranged in the movable knife rest and fixed to form a movable knife combination; the two sides of the knife fixing support are provided with columns, and the knife pressing spring is arranged in the columns for fixing to form a knife fixing support combination; then, the movable cutter combination is arranged in the cutter fixing support combination, and the cutter fixing support combination and the fixed cutter are fixed together through the two cutter head fasteners. Wherein, the pressure sword spring has two elastic arms, and the front end of every elastic arm is equipped with 90 degrees crotch. During assembly, the two hooks penetrate through the openings on the movable cutter frame and the movable cutter to limit the movable cutter.

There are problems with this prior art arrangement: when the motor is started to operate, the pressure knife spring can swing back and forth along with the movable knife in a left-right transverse reciprocating mode, and the pressure spring is used as a load, so that the energy consumption is high, the heating of the motor is high, and the working time of a battery is short; in addition, because the distance between the tooth tips of the fixed cutter and the movable cutter is controlled by the cutter pressing spring, and the machining size error of the cutter pressing spring, the movable cutter holder and the movable cutter leads to a larger error range after assembly and superposition, and further leads to a larger range of the distance between the tooth tips of the fixed cutter and the movable cutter. Therefore, when the hair cutter is started to operate, the hook on the cutter pressing spring and the movable cutter combination swing together, and the bent hook and the movable cutter combination rotate by 360 degrees by the eccentric driving wheel and move out of an arc-shaped swing track instead of a straight line, so that the distance between the tooth tips of the fixed cutter and the movable cutter is large in left-right fall, and the height of cut hair is not uniform enough.

The existing hair trimmer has the deviation of the hair cutting height of 0.5-1.0 mm along the normal cutting direction; the hair cutting height is within 0.3-1.5 mm deviation along the professional cutting direction. The length of the hair to be cut is difficult to be less than 0.5 mm due to the limitation of the thickness of the tooth tips of the fixed knife and the distance between the fixed knife and the movable knife, and the requirement of professional hair cutting cannot be well met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, the utility model provides a personal care clipping machine can satisfy the needs of professional haircut well.

The utility model provides a technical scheme that its technical problem adopted includes: there is provided a personal care trimmer comprising a cutter head assembly and a housing for mounting on the cutter head assembly, the cutter head assembly comprising:

the fixed cutter comprises a substrate, wherein a plurality of V-shaped through grooves are arranged in a straight line at one end of the substrate;

the movable knife limiting part is fixed on the base plate of the fixed knife and combined with the fixed knife to form a fixed knife combination; the top of the support is provided with two support grooves with upward openings;

the movable cutter comprises a base plate, wherein a plurality of V-shaped through grooves are arranged in a straight line at one end of the base plate and are used for being matched with the V-shaped through grooves on the fixed cutter to cut hair; a positioning through hole is arranged on the substrate, and a plurality of fixing holes are arranged around the positioning through hole;

the movable knife driving part is combined with the movable knife to form a movable knife combination; the movable knife comprises a base plate, wherein a plurality of fixing columns are convexly arranged on one surface of the base plate facing the movable knife and are used for being matched with fixing holes in the movable knife; a rectangular through groove is formed in the base plate, and a plurality of limiting bones are convexly arranged on the long edges of the two sides of the through groove and used for guiding the movable cutter limiting piece; and

the knife pressing spring comprises a pressing part extending linearly, two elastic arms extending from two ends of the pressing part in a bending way respectively, and two mounting parts extending from the tail ends of the two elastic arms in a winding way oppositely; the pressing part presses against the base plate of the movable knife driving part; the two elastic arms are respectively landed in the two supporting grooves of the movable blade limiting piece.

In some embodiments, the movable blade limiting part comprises a vertical supporting plate and a fixing plate vertically bent and extended from the bottom end of the supporting plate; wherein, the fixed plate is fixed on the base plate of the fixed knife, and the two supporting grooves are arranged at the top of the supporting plate.

In some embodiments, the movable blade limiting part comprises a supporting frame with an inverted U-shaped cross section, and two fixing plates horizontally bent and extended from the bottom end of the supporting frame respectively; the two fixing plates are fixed on the base plate of the fixed cutter, and the two support grooves are arranged at the top of the support frame.

In some embodiments, at least one positioning hole is arranged beside the two supporting grooves for positioning the movable knife limiting piece on the fixed knife.

In some embodiments, the two mounting portions of the blade pressing spring are in a spiral cylinder shape and are clamped on the fixing column of the casing.

In some embodiments, the material of the pressure spring is stainless steel wire, and the diameter of the wire is 0.3-1.2 mm; the pressure spring forms a space between the two aforementioned mounting parts.

In some embodiments, the movable knife driving member is made of POM plastic or nylon; the fixed post on the movable knife driving piece is pressed and fixed in the fixed hole on the movable knife.

In some embodiments, the thickness of the fixed cutter ranges from 1.5 mm to 4.0 mm, and the thickness of the tooth tip region of the fixed cutter ranges from 0.5 mm to 1.0 mm; the thickness range of the movable knife is 0.5-1.2 mm, and the thickness range of the tooth tip area of the movable knife is 0.5-1.0 mm.

In some embodiments, the thickness of the fixed cutter is 1.8 mm, and the thickness of the tooth tip area of the fixed cutter is 0.6 mm; the thickness of the movable knife is 0.8 mm, and the thickness of the tooth tip area of the movable knife is 0.6 mm.

In some embodiments, the base plate of the fixed knife is provided with a fixing hole, and the fixed knife is fixed on the casing by a fastener.

Compared with the prior art, the utility model discloses a personal care clipping machine through the stationary knife, move the sword locating part, move the sword driving piece and press the sword spring between cooperation ingeniously, can ensure V type groove on the stationary knife and move the cooperation between the V type groove on the sword, it is fairly accurate, for example: along the normal cutting direction, the cutting height is within the deviation of 0.5-1.0 mm; along the professional cutting direction, the cutting height is 0.05-0.5 mm, and the requirement of professional hair cutting can be well met.

Drawings

Fig. 1 is a perspective view of the personal care trimmer of the present invention.

Fig. 2 is a schematic cross-sectional view of the personal care trimmer of the present invention.

Fig. 3 is an exploded view of the tool bit assembly of the present invention.

Fig. 4 and 5 are exploded views of two views of an embodiment of a tool bit assembly of the present invention.

Fig. 6 is a schematic view of the combination of the stationary blade and the movable blade limiting member in fig. 4.

Fig. 7 and 8 are two views of the combination of the movable blade and the movable blade driving member in fig. 4.

Fig. 9 is a perspective view of the knife spring of fig. 4 from another perspective.

Fig. 10 is an exploded view of another embodiment of the tool bit assembly of the present invention.

Fig. 11 is an assembled schematic view of the tool tip assembly of fig. 10.

Fig. 12 is a schematic view of the combination of the stationary blade and the movable blade stop in fig. 10.

Fig. 13 and 14 are two views of the combination of the movable blade and the movable blade driving member in fig. 10.

Wherein the reference numerals are as follows: 100 personal care trimmer 10, 10a head assembly 20 housing 40 motor assembly 50 battery assembly; 1, a base plate 12 of a fixed knife 11, a V-shaped groove 16 fixing hole 2, a 2a movable knife limiting piece 21 supporting plate 213 supporting groove 22, a fixing plate

21a supporting groove

213a supporting groove

214a positioning hole

22a fixing plate 3, a movable knife 31 base plate 313 fixing hole 315 positioning through holes 32V-shaped grooves 4, a 4a movable knife driving piece 41 base plate 412 positioning bone 415, a fixing column 43 fixing column 47 matching part

41a base plate

412a positioning bone 415, a through groove 5 pressing spring 51 pressing part 52, an elastic arm 53 mounting part 54 interval 6 fastener.

Detailed Description

The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a perspective view of the personal care trimmer of the present invention. The utility model provides a personal care trimmer 100, it includes tool bit assembly 10 and is used for installing at the casing 20 of tool bit assembly 10.

Referring to fig. 2, fig. 2 is a schematic cross-sectional view of the personal care trimmer of the present invention. The personal care trimmer 100 further includes: a motor assembly 40 and a power supply assembly 50 disposed in the housing 20 for driving the operation of the cutter head assembly 10.

Referring to fig. 3, fig. 3 is an exploded view of the tool bit assembly of the present invention. The cutter head assembly 10 includes: the fixed knife 1, move sword locating part 2, move sword 3, move sword driving piece 4 and push down sword spring 5.

The stationary knife 1 comprises a base plate 11, and a plurality of V-shaped through grooves 12 are arranged in a line at one end of the base plate 11. Two fixing holes 16 are formed in the base plate 11 for correspondingly inserting two fasteners 6 (e.g., screws). The stationary knife 1 can be fixed to the housing 20 by means of the two fasteners 6.

For example, the material of the stationary knife 1 is SUS 420J2 type stainless steel, and the hardness after heat treatment is: 50-60 HRC. The thickness of the stationary knife 1 ranges from 1.5 to 4.0 mm, for example: 1.8 mm. The thickness of the tooth tip area of the fixed cutter 1 ranges from 0.5 mm to 1.0 mm, such as: 0.6 mm.

The moving blade limiting part 2 comprises a vertical supporting plate 21 and a fixing plate 22 vertically bent and extended from the bottom end of the supporting plate 21. The top of the support plate 21 is provided with two upwardly open support grooves 213 for engaging the blade pressing spring 5.

The movable blade 3 includes a base plate 31. At one end of the base plate 31, a plurality of V-shaped through grooves 32 are arranged in a row for cooperating with the asymmetrically sharp V-shaped through grooves 12 on the stationary knife 1 to cut hair. Two support legs 34 are bent and extended from the other end of the substrate 21. A positioning through hole 315 is formed in the base plate 31, and five fixing holes 313 are formed around the positioning through hole 315 for cooperating with the movable blade driving member 4.

For example, the material of the movable blade 3 is SUS 420J2 type stainless steel, and the hardness after heat treatment is: 50-60 HRC. The thickness of the moving blade 3 ranges from 0.5 to 1.2 mm, for example: 0.8 mm. The thickness of the tooth tip area of the movable blade 3 ranges from 0.5 mm to 1.0 mm, such as: 0.6 mm.

It is worth mentioning that steps are arranged at the side (i.e. the cutting surface) of the movable knife 3 facing the fixed knife 1 and adjacent parts of the plurality of V-shaped through grooves 32, and the arrangement of the steps can reduce the contact area between the cutting surface of the fixed knife 3 and the fixed knife 1 so as to reduce the frictional resistance between the movable knife 3 and the fixed knife 1.

The movable blade driving member 4 includes a base plate 41. Five fixing posts 43 are convexly arranged on one surface of the base plate 41 facing the movable blade 3 and are used for matching with the fixing holes 313 on the movable blade 3. An engaging portion 47 is provided at a central portion of the base plate 41 for engaging with the motor assembly 40. A rectangular through groove 415 is formed in the base plate 41, and a plurality of limiting ribs 412 are convexly arranged on the long sides of the two sides of the through groove 415 for guiding the movable blade limiting member 2 and reducing the friction area of the movable blade limiting member 2 so as to reduce the friction resistance.

For example, POM plastic (polyoxymethylene) or nylon (polyamide fiber) is selected as the material of the movable blade driving member 4.

The blade pressing spring 5 includes a pressing portion 51 extending linearly, two elastic arms 52 extending from two ends of the pressing portion 51 in a bending manner, and two mounting portions 53 extending from ends of the two elastic arms 52 in a winding manner in opposite directions. The pressing portion 51 presses against the base plate 41 of the movable blade driving member 4 to form a line contact with the base plate 41.

For example, the material of the pressure spring 5 is stainless steel wire with a diameter in the range of 0.3-1.2 mm, such as: 0.8 mm. The two mounting portions 53 are spirally cylindrical and are fastened to the fixing posts of the housing 20.

Referring to fig. 4 and 5, fig. 4 and 5 are two exploded views of an embodiment of a tool bit assembly of the present invention. In the blade unit 10, the support plate 21 of the movable blade stopper 2 is correspondingly inserted into the through slot 415 of the movable blade driving member 4. The two elastic arms 52 of the presser spring 5 are respectively landed in the two support grooves 213 of the support plate 21. The pressing portion 51 of the blade pressing spring 5 presses against the base plate 41 of the movable blade driving member 4.

It can be understood that the cooperation between the left and right ends of the through slot 415 and the left and right ends of the support plate 21 defines the transverse movement range of the movable blade 3; the cooperation between the limiting ribs 412 and the front and rear side surfaces of the supporting plate 21 limits the longitudinal shaking range of the movable blade 3. The structure relationship can ensure the matching between the V-shaped groove 12 on the fixed cutter 1 and the V-shaped groove 12 on the movable cutter 3, and the matching is relatively accurate.

For example, in the normal cutting direction, the cutting height is within a deviation of 0.5-1.0 mm, such as: 0.6 mm; in the professional cutting direction, the cutting height is within a deviation of 0.05-0.5 mm, such as: 0.25 mm. Can be well suitable for trimming the hair in the areas of cheek and temple stenosis at two sides.

Referring to fig. 6, fig. 6 is a schematic view of the combination of the stationary blade and the movable blade limiting member in fig. 4. The assembly process of the fixed knife 1 and the knife limiting part 2 roughly comprises the following steps: the fixed cutter 1 is placed into a positioning fixture (not shown), the movable cutter limiting piece 2 is taken and placed into the positioning fixture, and the movable cutter limiting piece 2 is fixed on the cutting surface of the fixed cutter 1 in a laser welding mode, so that the fixed cutter combination can be formed.

Referring to fig. 7 and 8, fig. 7 and 8 are two views of the combination of the movable blade and the movable blade driving member in fig. 4. The assembly process of the movable knife 3 and the movable knife driving member 4 substantially comprises the following steps: the movable knife driving part 4 is placed into the movable knife 3, the combination is placed into a positioning fixture (not shown), the fixed columns 43 on the movable knife driving part 4 are pressed and fixed in the fixed holes 313 on the movable knife 3 in a mode that the beer machine presses the end faces of the five fixed columns 43 on the movable knife driving part 4, and the movable knife driving part 4 is fixed on the movable knife 3, so that the movable knife combination can be formed.

Referring to fig. 9, fig. 9 is a perspective view of the knife pressing spring of fig. 4 from another perspective. The pressure spring 5 forms a small space 54 between the two mounting parts 53, which is clearly distinguished from the wide space between the head ends of the two resilient arms used by pressure springs in existing personal care trimmers.

The assembly process of the cutter head assembly 10 and the machine shell 20 generally comprises the following steps: the bottom shell (one part of the machine shell 20) is placed in a positioning clamp (not shown), a knife pressing spring 5 is arranged on two fixing columns of the bottom shell to prevent ejection, a movable knife combination and a fixed knife combination are sequentially arranged, then the fixed knife 1 is locked and fixed on the bottom shell by two fasteners 6, then a motor combination 40 and a battery combination 50 are arranged, and after the test is OK, the upper shell (the other part of the machine shell 20) is arranged.

It can be understood that, after the power-on, the battery assembly 50 drives the motor assembly 40 to rotate eccentrically 360 degrees, and drives the moving blade assembly to reciprocate left and right along the moving blade limiting member 2.

Compared with the prior art, the utility model discloses a beneficial effect that personal care clipping machine 100 has includes: the laser welding position of the movable cutter limiting part 2 and the fixed cutter 1 can be flexibly adjusted according to the size of the movable cutter combination, and the positioning fixture can ensure that the distance between the tooth tip of the fixed cutter 1 and the tooth tip of the movable cutter 3 is 0.25 mm, and then welding is carried out, so that part processing and assembly superposition errors can be eliminated, the transverse swing track of the movable cutter 3 is basically close to parallel, the tooth tip distance error between the fixed cutter 1 and the movable cutter 3 is eliminated, and the hair cutting height is uniform; in addition, the movable blade limiting part 2 is provided with a supporting groove 213 for landing (clamping) the pressing blade spring 5, so that when the movable blade combination operates in a reciprocating mode left and right, the pressing blade spring 5 does not need to swing together, the elastic force influence of the pressing blade spring 5 during swinging can be eliminated, the load current and the heat productivity of the motor during operation can be reduced, and the battery operation time can be prolonged; then, the contact part of the pressing knife spring 5 and the movable knife driving part 4 is a whole (the pressing part 51), the contact surface is a straight line, the stress is uniform, the contact area of the R-phase section of the pressing knife spring 5 and the movable knife driving part 4 is smaller, the friction is reduced, the load current and the heating value of the motor during operation can be reduced, and the battery discharge time is prolonged.

Referring to fig. 10 to 14, fig. 10 is an exploded view of another embodiment of the tool bit assembly of the present invention. Fig. 11 is an assembled schematic view of the tool tip assembly of fig. 10. Fig. 12 is a schematic view of the combination of the stationary blade and the movable blade stop in fig. 10. Fig. 13 and 14 are two views of the combination of the movable blade and the movable blade driving member in fig. 10. The utility model discloses a tool bit combination 10a of another embodiment is the same with aforementioned tool bit combination 10's function, and the structure is different to some extent, and difference part mainly appears: the movable blade limiting part 2a includes a supporting frame 21a with an inverted U-shaped cross section, and two fixing plates 22a bent and extended horizontally from the bottom end of the supporting frame 21 a. The upper end of the supporting frame 21a is provided with two supporting slots 213a with upward openings, and two positioning holes 214a are disposed beside the two supporting slots 213 a. The two positioning holes 214a are used for positioning the movable blade limiting piece 2a on the fixed blade 1, and are beneficial to accurately welding and fixing the movable blade limiting piece 2a on the fixed blade 1. In addition, the front-rear dimension of the through slot 415a of the movable blade driving member 4a is larger than that of the through slot 415; the size of the protrusion of the stopper bone 412a is smaller than that of the aforementioned stopper bone 412.

It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and that such modifications and substitutions are intended to be included within the scope of the appended claims.

Claims

1. A personal care trimmer (100) includes a cutter head assembly (10, 10 a) and a housing (20) for mounting to the cutter head assembly (10, 10 a); characterized in that the cutter head assembly (10, 10 a) comprises:

the fixed cutter (1) comprises a base plate (11), wherein a plurality of V-shaped through grooves (12) are arranged in a line at one end of the base plate (11);

the movable knife limiting pieces (2 and 2 a) are fixed on the base plate (11) of the fixed knife (1) and combined with the fixed knife (1) to form a fixed knife combination; the top of the support is provided with two support grooves (213, 213 a) with upward openings;

the movable cutter (3) comprises a base plate (31), wherein a plurality of V-shaped through grooves (32) are arranged at one end of the base plate (31) in a straight line and are used for being matched with the V-shaped through grooves (12) on the fixed cutter (1) to cut hair; a positioning through hole (315) is arranged on the substrate (31), and a plurality of fixing holes (313) are arranged around the positioning through hole (315);

a movable knife driving part (4, 4 a) combined with the movable knife (3) to form a movable knife combination; the movable knife comprises a base plate (41), wherein a plurality of fixing columns (43) are convexly arranged on one surface of the base plate (41) facing the movable knife (3) and are used for being matched with fixing holes (313) on the movable knife (3); a rectangular through groove (415, 415 a) is arranged on the base plate (41, 41a), and a plurality of limiting bones (412, 412 a) are convexly arranged on the long sides of the two sides of the through groove (415, 415 a) and used for guiding the movable blade limiting piece (2, 2 a); and

the knife pressing spring (5) comprises a pressing part (51) extending linearly, two elastic arms (52) respectively bent and extended from two ends of the pressing part (51), and two mounting parts (53) respectively oppositely wound and extended from the tail ends of the two elastic arms (52); wherein the pressing part (51) presses against the base plates (41, 41a) of the movable knife driving parts (4, 4 a); the two spring arms (52) are respectively seated in two support grooves (213, 213 a) of the movable blade stop (2, 2 a).

2. The personal care trimmer (100) according to claim 1, characterized in that the movable blade retainer (2) comprises a vertical support plate (21) and a fixing plate (22) extending from the bottom end of the support plate (21) in a vertically bent manner; wherein the fixing plate (22) is fixed on the substrate (11) of the fixed knife (1), and the two supporting grooves (213) are arranged on the top of the supporting plate (21).

3. The personal care trimmer (100) according to claim 1, wherein the movable blade retainer (2 a) comprises a support frame (21 a) having an inverted U-shaped cross section, and two fixing plates (22 a) respectively bent and extended horizontally from the bottom end of the support frame (21 a); wherein the two fixing plates (22 a) are fixed on the base plate (11) of the fixed knife (1), and the two supporting grooves (213 a) are arranged at the top of the supporting frame (21 a).

4. The personal care trimmer (100) according to claim 3, characterized in that at least one positioning hole (214 a) is provided beside the two support slots (213 a) for positioning the movable blade stop (2 a) on the stationary blade (1).

5. The personal care trimmer (100) in accordance with claim 1, wherein the two mounting portions (53) of the blade pressing spring (5) are spirally cylindrical and are fastened to fixing posts of the housing (20).

6. The personal care trimmer (100) in accordance with claim 1, characterized in that the material of the blade pressing spring (5) is stainless steel wire, the diameter of the wire is in the range of 0.3-1.2 mm; the blade pressing spring (5) forms a gap (54) between the two mounting portions (53).

7. The personal care trimmer (100) in accordance with claim 1, wherein the movable blade driving member (4) is made of POM plastic or nylon; the fixed columns (43) on the movable knife driving parts (4, 4 a) are pressed and fixed in the fixed holes (313) on the movable knife (3).

8. The personal care trimmer (100) according to claim 1, characterized in that the stationary blade (1) has a thickness in the range of 1.5-4.0 mm, and the stationary blade (1) has a tip area thickness in the range of 0.5-1.0 mm; the thickness range of the movable knife (3) is 0.5-1.2 mm, and the thickness range of the tooth tip area of the movable knife (3) is 0.5-1.0 mm.

9. The personal care trimmer (100) according to claim 8, characterized in that the stationary blade (1) has a thickness of 1.8 mm and the tip area of the stationary blade (1) has a thickness of 0.6 mm; the thickness of the movable knife (3) is 0.8 mm, and the thickness of the tooth tip area of the movable knife (3) is 0.6 mm.

10. The personal care trimmer (100) according to any one of claims 1 to 9, characterized in that the base plate (11) of the stationary blade (1) is provided with fastening holes (16), and the stationary blade (1) is fastened to the housing (20) by means of fasteners (6).