WO2013056512A1 - 旋转式电动剃须刀刀头 - Google Patents

旋转式电动剃须刀刀头 Download PDF

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Publication number
WO2013056512A1
WO2013056512A1 PCT/CN2012/001395 CN2012001395W WO2013056512A1 WO 2013056512 A1 WO2013056512 A1 WO 2013056512A1 CN 2012001395 W CN2012001395 W CN 2012001395W WO 2013056512 A1 WO2013056512 A1 WO 2013056512A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
rotary electric
electric shaver
movable
shaver head
Prior art date
Application number
PCT/CN2012/001395
Other languages
English (en)
French (fr)
Inventor
刘伟明
Original Assignee
上海奔腾电工有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 201120397666 external-priority patent/CN202278590U/zh
Priority claimed from CN201110317261.2A external-priority patent/CN102366962B/zh
Application filed by 上海奔腾电工有限公司 filed Critical 上海奔腾电工有限公司
Priority to DE112012004401.0T priority Critical patent/DE112012004401B4/de
Priority to US14/380,821 priority patent/US20150082637A1/en
Publication of WO2013056512A1 publication Critical patent/WO2013056512A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/143—Details of outer cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/141—Details of inner cutters having their axes of rotation perpendicular to the cutting surface

Definitions

  • the present invention relates to the field of electric shaver heads, and more particularly to the heads of rotary electric shavers.
  • the rotary razor just overcomes the shortcomings of the reciprocating razor. Since the transmission mechanism adopts a gear structure with a reduced speed, the rotation speed of the cutter head is generally about 3000 RPM, the vibration is small when shaving, and the sound quality of the shaving is good. , can remove the beard of the partial curvature of the face, but the overall shaving efficiency is not high, and the degree of fit between the cutter head and the facial skin is not enough, the knife net is thicker (0. 06 ⁇ 0. 12mm, the local thick portion of the knife net reaches 0. 12mm), often there are residues in the beard roots, shaving is not thorough enough, and comfort is not good.
  • the traditional three-ring arc face cutter is made.
  • the cutter head mesh surface (knife mesh cover 7) must be performed three times. Thinning and three-time grinding, in order to ensure the cooperation of the knife net cover 7 and the movable knife 8, the inner surfaces of the three inner rings of the knife net cover 7 must be ground; and the increase of the number of rings does not realize the full arc of the knife net cover 7.
  • the shaving of the face, the connecting portion between the movable knife 8 and the knife net cover 7 must be avoided, and the gap between the rings must be left unshaved.
  • the complexity of the processing technology of the curved face cutter and the processing equipment have extremely high requirements on the technical level of the workers.
  • the technical problem to be solved by the present invention is to provide a rotary electric shaver head which has the advantages of fast shaving speed, good shaving sound quality, good surface effect, good comfort, easy manufacture and the like.
  • a rotary electric shaver head which is composed of a stencil cover with a wavy curved surface, a drive bushing, a tapered drive shaft, a movable knife, and an elastic knife.
  • Block and drive connector wherein:
  • a "C”-shaped or “S”-shaped entry hole slot is formed on the knife net cover, and the entry hole groove is a combination of a round hole and a groove, or a long groove and a short groove;
  • the moving knife is fixed on the driving connecting member by hot pressing and forming a moving knife assembly.
  • the moving knife assembly is driven by the upper tapered surface of the tapered driving shaft and the inner tapered surface of the driving sleeve, and the moving knife assembly is disposed in the elastic blade seat. On the boss of the surface, the moving knife assembly rotates only to contact the boss of the inner surface of the elastic blade seat;
  • the elastic knife seat applies an pressing force upward to the movable knife assembly, and is connected with the knife net cover, and the movable knife assembly is in close contact with the inner surface of the knife net cover under the action of the pressing force.
  • the movable knife assembly of the present invention is in close contact with the inner surface of the knife net under the action of the pressing force of the elastic blade seat, thereby improving the shaving sharpness; under the action of the pressing force, the tapered surface driving shaft
  • the upper tapered surface and the inner tapered surface of the drive bushing mounted on the knife net cover can also be accurately matched to ensure that the movable knife assembly rotates in the axial direction without deviation, so that the shaving is smoother and will not be smooth.
  • whiskers and whiskers Elephant The occurrence of whiskers and whiskers Elephant.
  • the stencil cover is thinner, the inner cutter head is completely in contact with the stencil cover, the shaving of the entire mesh surface is realized, the shaving area is maximized, the mesh curvature and the face are The contour is more consistent, and the independent cone rotation transmission mechanism and elastic reinforcement structure are designed to achieve the correct positioning of the movable knife and close contact with the knife net cover, so that faster shaving speed and better can be achieved. Shaving sharpness, better shaving sound and shaving skin feel.
  • the manufacturing process of the cutter head of the invention is relatively simple, the material cost is low, is suitable for mass production, and can achieve high economic benefits.
  • FIG. 1 is a view showing the internal structure of a cutter head of the present invention.
  • Fig. 2 is a view showing the internal structure of a cutter head which is commercially available.
  • Figure 3 is an exploded perspective view of the cutter head of the present invention.
  • Figure 4 is a schematic view of the wavy knife cover 1 of the present invention.
  • Fig. 5 is a schematic view showing the appearance of a long and short groove combined with the blade cover 1.
  • Fig. 6 is a schematic view showing the appearance of the hole and groove combined with the blade cover 1.
  • Figure 7 is a cross-sectional view of the blade cover 1 of the present invention.
  • Figure 8 is a cross-sectional view of a conventional knife net cover sold on the market.
  • Fig. 9 is a schematic view showing the structure of the elastic blade holder 5 of the cutter head of the present invention.
  • 1 is the knife net cover
  • 2 is the drive bushing
  • 3 is the cone drive shaft
  • 4 is the movable knife
  • 5 is the elastic knife seat
  • 6 is the drive connecting piece
  • 7 is the knife of the existing commercially available cutter head Net cover
  • 8 is the moving knife of the commercially available cutter head
  • 9 is the positioning column of the currently available cutter head
  • 10 is the support column
  • 11 is the boss
  • 12 is the upper cone
  • 13 is the inside tapered surface.
  • a wavy curved rotary electric shaver head is a knife net cover having a wavy curved surface, a driving sleeve 2, and a tapered surface.
  • the drive shaft 3, the movable knife 4, the elastic blade holder 5, and the drive coupling member 6 are composed. among them:
  • the stencil cover 1 has a wavy curved surface of 2 to 4 (Fig. 4, Fig. 7), and the thickness of the stencil cover is 0. 05 ⁇ 0. 12mm, preferably 0. 08 ⁇ 0. 1mm, the material is made of stainless steel or plastic. Preferably, it is a stainless steel material.
  • the stainless steel material is formed into a wavy shape by stamping and drawing, and the wavy structure has a certain rigidity to effectively prevent deformation, and the wave height and the trough form an appropriate height difference (0. 2mm ⁇ 0. 5mm), which can effectively capture the long and short hair of the human body.
  • the crests and troughs all have a shaving function.
  • the cutter net cover 1 is provided with a "C" shape or an "S" shape into the groove and the hole (Fig. 5, Fig. 6).
  • the rotating shaft is formed by the driving bushing 2 and the tapered driving shaft 3, and the moving blade 4 is mounted on the three supporting columns 10 of the driving connecting member 6, and the moving knife assembly is fixedly formed by the hot press melting processing method.
  • a square hole is formed in the center of the driving connecting member 6, and the tapered driving shaft 3 is inserted and fixed in the hole.
  • the motor transmits the rotating force through the reduction gear and the driving arm to reach the lower end of the driving connecting member 6, and the driving connecting member 6 rotates to drive the taper surface.
  • the shaft 3 rotates. Since the positioning post 9 (shown in FIG.
  • the moving knife assembly is driven by the upper tapered surface 12 on the tapered drive shaft 3 and the inner tapered surface 13 of the drive bushing 2 fixedly mounted on the blade cover 1; the movable knife assembly is placed on the inner surface of the elastic blade seat 5 On the bosses 11, when the movable cutter assembly rotates, it only contacts the boss 11 on the inner surface of the elastic blade holder 5, instead of contacting the entire inner ring surface of the elastic blade holder.
  • the elastic blade holder 5 applies an urging force upward to the movable blade assembly and the tapered drive shaft 3, and is fixedly coupled to the blade cover 1.
  • the elastic blade holder 5 is made of metal when it is made of metal; the elastic blade holder 5 is made of plastic (POM or ABS) and can be used in the elastic blade holder.
  • the moving knife assembly is in close contact with the inner surface of the blade cover 1 under the pressing force of the elastic blade holder 5, thereby improving the shaving sharpness, and the upper tapered surface 12 on the tapered drive shaft 3 under the action of the pressing force.
  • the inner tapered surface 13 of the drive bushing 2 mounted on the knife net cover 1 can also be accurately matched to ensure that the movable knife assembly rotates in the axial direction without deviation, so that the shaving is smoother and no clip occurs. The phenomenon of whiskers and whiskers.
  • the driving shaft sleeve 2 and the tapered surface driving shaft 3 form a rotating mechanism for enabling the power 4 to perform a cutting motion with respect to the screen cover 1. Since the overall wall of the material is thin, a better shaving sound quality can be produced when shaving.
  • the peaks and troughs of the wavy blade cover 1 form a suitable height difference (0.2 mm - 0. 5 mm), which can effectively capture the long and short whiskers of the human body, and the wave crests and troughs have the shaving function.
  • the two-ring and three-ring arc-faced cutter heads on the market have the problem that the transition between the curved surface and the curved surface cannot be shaved (Fig. 2), and the wavy knife-net cover 1 can achieve shaving and shaving of the entire mesh surface.
  • a first preferred production example of the present invention is a first preferred production example of the present invention.
  • the processing flow of the first preferred example cutter head knife net cover stamping, electrolytic slotting, opening, injection molding, moving knife stamping, a bright heat treatment, moving knife, hot pressure melting, fixing, moving knife, grinding, blade, net knife cover, movable knife Grinding ⁇ knife net cover polishing ⁇ assembly one coating
  • the wavy curved surface stencil 1 is drawn by a stainless steel material (SUS420J2) having a thickness of 0.1 mm, because the material is thinner than the previous material (thickness of 0.5 riran), and the conventional cutting head
  • SUS420J2 stainless steel material
  • this design can greatly simplify the design and stretching times of the knife net 1 metal mold (traditional blind hole stretching times 7 to 8 times or more)
  • the metal stamping step is simplified, and the machining accuracy (curtain profile and positioning dimension) of the knife net cover is improved.
  • the surface of the stainless steel material of the knife net 1 is mirror-polished, and the better the surface gloss of the material, the subsequent processing time and steps can be reduced, and the production efficiency is improved.
  • the anode is electrolyzed by the electrochemical action of the vibrating electrode, and the groove and the hole of the knife mesh are processed to form a beard introduction slot.
  • the distribution of the groove and the hole can be adjusted according to design requirements, and the groove width is adjusted. It is 0. 35 ⁇ 0. 45mm, the hole diameter is 0. 3 ⁇ 0. 45mm, according to the need of shaving, it can be designed as slot joint (Fig. 6), or it can be combined with long slot and short slot (Fig. 5). . Since the knife net cover has a wavy curved surface, the shape of the electrolyzed groove can adopt a "C" shape or an "S" shape, so that the beard can be easily introduced, and the whisker can be effectively locked when the shaving does not escape. And the shaved beard debris will not pop out of the mesh.
  • the drive bushing 2 In the third step, four parts of the drive bushing 2, the tapered drive shaft 3, the elastic blade seat 5 and the drive connecting member 6 are injection molded by the injection molding machine.
  • the plastic material has strong wear resistance and has certain hardness and toughness.
  • the movable knife 4 is punched out by a punching machine with a 0.4 mm stainless steel material (SUS420J2).
  • the cutting edge angle of the movable blade is 40 degrees to 60 degrees, and the cutting edge is The contact area of the knife net cover is as small as possible.
  • the movable knife 4 and the knife net cover 1 are respectively subjected to a bright heat treatment process, the quenching temperature is controlled at 950 to 1020 ° C, and the low temperature tempering is performed at 250 to 350 ° C to ensure the release of the internal stress of the material, and the heat treatment process is performed.
  • the knife net cover 1 and the movable knife 4 have a suitable hardness of 530 to 600 HV, and have toughness and wear resistance. Can improve the service life of the cutter head. Since the second step of electrolytically processing the slot of the knife net cover, the hardness of the material has little effect on the efficiency of the electrolytic machining. In order to avoid deformation of the knife net cover which is processed after the heat treatment, the heat treatment may be performed before the knife net cover is performed. Electrolytic grooving, opening.
  • the movable blade is hot-melted and fixed to the driving connector 6 by hot-press welding, and the power component is ground and edged. Since the grinding blade is a single blade, it can be finished in one pass.
  • the power component and the knife net cover are matched with the grinding to improve the camber degree.
  • the knife net cover is polished to improve the gloss of the outer surface of the knife net cover and improve the skin feel during shaving.
  • the components are assembled together, and the contact faces of the tapered drive shaft 3 and the drive bushing 2 are filled with lubricating oil. Since the knife net cover 1 and the elastic knife seat 5 are fixed by the embedded card position in the embodiment, no additional welding is required.
  • a second preferred production example of the present invention is also possible to perform vacuum coating treatment on the knife net cover and the movable knife, such as ALTIN, CrCN, and TI plating.
  • the second preferred production process of the cutting head process the knife net cover, the movable knife stamping, a bright heat treatment ⁇ the injection molding, the moving knife, the grinding, the blade, the movable knife, the grinding, the knife net, the polishing, the movable knife, the hot press welding, the assembly
  • a wavy curved stencil is drawn by a stainless steel material (SUS420J2) having a thickness of 0.08 mm.
  • the slot is also completed during the stamping process.
  • the stainless steel material (SUS420J2) having a thickness of 0.4 mm is punched out to form a movable knife 4, and the angle of the movable blade is 40 to 60 degrees.
  • the moving knife 4 and the knife net cover 1 are respectively subjected to a bright heat treatment process, and the quenching temperature is controlled at 950 ⁇ 1020 °C, and use low temperature tempering 250 ⁇ 350 °C.
  • the hardness of the knife net and the movable knife is 530 ⁇ 600HV.
  • the third step is to inject the drive bushing 2, the cone drive shaft 3, the elastic knife seat 5, the drive connector 6 and four parts.
  • the plastic material is made of POM or ABS material.
  • the power 4 is ground and edged.
  • the power 4 and the knife net cover 1 are matched with the grinding to improve the camber fit.
  • the surface of the knife net cover 1 is polished to improve the gloss of the outer surface of the knife net cover and improve the skin feel when shaving.
  • the seventh step the moving knife 4 is fixed by heat pressing on the driving connector 6, and the components are assembled and fixed together.
  • the cutter head manufactured by the above embodiment has a wavy mesh structure, the mesh surface of the cutter mesh is thinner, the inner cutter head is completely in contact with the cutter mesh cover, the shaving of the entire mesh surface is realized, the shaving area is maximized, and the mesh curvature is maximized. It has better matching with the contour of the face, and has a tapered drive mechanism and elastic reinforcement structure, which solves the problems of the previous razor blade holder, the whisker, the sharpness, the poor shaving sound, etc.
  • the facial contour of the human body achieves a more efficient, comfortable and thorough shaving experience.
  • the above-mentioned cutter head manufacturing process is relatively simple, the material cost is low, and it is suitable for mass production, and can achieve high economic benefits.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

一种旋转式电动剃须刀刀头，其刀网罩（1）具有波浪状的曲面，刀网罩上开设"C"形或"S"形的进须孔槽，进须孔槽是圆孔与槽相结合，或者是长槽与短槽相结合；动刀（4）通过热压熔方式固定在驱动连接件（6）上形成动刀组件，动刀组件由锥面驱动轴（3）的上锥面与驱动轴套（2）的内锥面接触带动，动刀组件设置在弹力刀座（5）内表面的凸台（11）上，动刀组件旋转时只与弹力刀座内表面的凸台接触；弹力刀座向动刀组件向上施加压紧力，并与刀网罩连接起来，动刀组件在压紧力的作用下与刀网罩内表面紧密接触。该旋转式电动剃须刀头，解决了夹须、拉须、锋利度不佳、剃须音质差等问题，能捕捉人体面部皮肤轮廓，实现更高效、更舒适、更彻底的剃须感受。

Description

说 明 书
旋转式电动剃须刀刀头 技术领域
本发明涉及一种电动剃须刀刀头领域，特别是用于旋转式电动剃须刀的刀 头。
背景技术
目前市面上销售的电动剃须刀主要有两种： 往复式和旋转式。 一般而言， 剃须的舒适度、 剃须的效率 （快慢）、 剃须的干净度以个人的面部轮廓、 胡须 状况及剃须刀的刀头结构直接相关， 短、 硬、 直的胡须适用于往复式剃须刀， 往复式剃须刀刀面与面部皮肤接触面积大， 刀网薄 （0. 06mm左右）、 刀头转速 一般在 8000RPM以上， 剃除短、 直的胡须效果好， 但是往复式剃须刀的最大缺 点是振动大， 不利于局部剃须， 稍有弯曲或比较柔软的胡须便不容易剃除。 而 旋转式剃须刀刚好克服了往复式剃须刀的缺点， 由于传动机构采用了降速的齿 轮结构，刀头部的转速一般在 3000RPM左右，剃须时振动小、剃须的音质较好， 能去除面部局部弯曲的胡须， 但是整体的剃须效率不高，并且刀头与面部皮肤 的吻合度不够， 刀网较厚 （0. 06〜0. 12mm， 刀网局部厚部达到 0. 12mm)， 常出 现胡须根部残留， 剃须不够彻底、 舒适度不佳等问题。
为了解决旋转式剃须刀的上述缺点， 以荷兰飞利浦公司为代表的国内外剃 须刀厂家推出了弧面刀头代替了平面刀头 （如图 2所示）， 以增加刀头与面部 皮肤的吻合度。 为了有效增大剃须面积， 提高剃须效率和剃须舒适度， 近年来 国内外的剃须刀厂家纷纷加大了剃须刀刀头的研发力度， 先后推出了两环、三 环弧面刀头的结构， 部分厂家甚至推出了四环弧面刀头的设计概念， 在外径尺 寸仅为 Φ 20. 4mm刀头网面上，环状的增加势必加大了刀头制造的难度， 以传统 的三环弧面刀头制作为例， 三环弧面就必须对刀头网面（刀网罩 7 )进行三次 削薄、三次研磨， 为保证刀网罩 7与动刀 8的配合还必须对刀网罩 7的三个内 环内表面进行研磨； 并且， 环数的增加并不能实现刀网罩 7全弧面的剃须， 动 刀 8与刀网罩 7之间必须要避开每个环之间的连接部分，各环间必然留下无法 剃须的间隙。另外， 弧面刀头加工工艺的复杂性以及加工设备对作业人员技术 水平要求极高， 尽量国内部分厂家已制造出弧面刀头， 但由于生产成本高， 无 法实现批量生产， 并且， 产品质量不稳定也无法真正上市销售。 因此开发一种 剃须工作面大， 剃须效率高， 剃须舒适度好， 制造较容易的旋转式剃须刀头具 有十分重要的意义。
发明内容
本发明所要解决的技术问题是提供一种具有剃须速度快、剃须音质佳、贴 面效果、 舒适度好， 制造容易等优点的旋转式电动剃须刀刀头。
为了解决上述技术问题， 本发明提供的技术方案是： 一种旋转式电动剃须 刀刀头， 它由具有波浪状曲面的刀网罩、 驱动轴套、 锥面驱动轴、 动刀、 弹力 刀座、 驱动连接件构成， 其中：
刀网罩上开设 "C"形或 "S "形的进须孔槽， 进须孔槽是圆孔与槽结合， 或者是长槽与短槽相结合；
动刀通过热压熔方式固定在驱动连接件上形成动刀组件，动刀组件由锥面 驱动轴的上锥面与驱动轴套的内锥面接触带动，动刀组件设置在弹力刀座内表 面的凸台上， 动刀组件旋转只与弹力刀座内表面的凸台接触；
弹力刀座向动刀组件向上施加押紧力， 并与刀网罩连接起来， 动刀组件在 押紧力的作用下与刀网罩内表面紧密接触。
相对于现有技术，本发明的动刀组件在弹力刀座的押紧力的作用下与刀网 罩内表面紧密接触， 能提高剃须锋利度； 在押紧力的作用下， 锥面驱动轴上的 上锥面与安装在刀网罩上的驱动轴套的内锥面也能准确吻合，保证动刀组件沿 轴心方向旋转， 不发生偏离的现象， 使剃须更顺滑、 不会发生夹须、 拉须的现 象。
另外， 由于本发明所采用的是波浪状网面结构， 刀网罩更薄， 内刀头与刀 网罩完全接触， 实现全网面的剃须， 剃须面积最大化， 网面弧度与面部轮廓的 吻合度更佳， 并且设计了独立的锥面旋转传动机构及弹力增强结构， 实现动刀 的正确定位及与刀网罩的紧密接触， 所以能实现更快的剃须速度、更好的剃须 锋利度、 更佳的剃须音质及剃须肤感。 此外， 本发明刀头的制作工艺相对较简 单， 材料成本低， 适合大规模生产， 且能取得较高的经济效益。
附图说明
图 1是本发明的刀头内部结构图。
图 2是现有市面上销售的刀头内部结构图。
图 3是本发明刀头的部件分解图。
图 4是本发明波浪状刀网罩 1示意图。
图 5是长、 短槽相结合刀网罩 1的外观示意图。
图 6是孔、 槽结合刀网罩 1的外观示意图。
图 7是本发明的刀网罩 1截面图。
图 8是现有市面上销售的刀网罩截面图。
图 9是本发明刀头的弹力刀座 5嵌入结构示意图。
其中： 1为刀网罩； 2为驱动轴套； 3为锥面驱动轴； 4为动刀； 5为 弹力刀座； 6为驱动连接件； 7为现有市面上销售的刀头的刀网罩； 8为现 有市面上销售的刀头的动刀； 9为现有市面上销售的刀头的定位柱； 10为支 持柱； 11为凸台； 12为上锥面； 13为内锥面。
具体实施方式
下面结合附图和具体实施例， 进一步阐述本发明。这些实施例应理解为仅 用于说明本发明而不用于限制本发明的保护范围。在阅读了本发明记载的内容 之后， 本领域技术人员可以对本发明作各种改动或修改， 这些等效变化和修饰 同样落入本发明权利要求所限定的范围。
如图 1、 图 3所示， 本发明优选实施例提供的一种波浪状曲面旋转式电动 剃须刀刀头， 它是由具有波浪状曲面的刀网罩 1、 驱动轴套 2、 锥面驱动轴 3、 动刀 4、 弹力刀座 5、 驱动连接件 6组成。 其中：
刀网罩 1具有 2〜 4段波浪状曲面（如图 4、 图 7)， 刀网罩厚度为 0. 05〜 0. 12mm,优选为 0. 08〜0. 1mm，材质使用不锈钢材料或塑料，优选为不锈钢材料。 不锈钢材料经冲压拉伸形成波浪状，波浪状的结构具有一定的刚性能有效防止 变形， 波峰和波谷形成合适的高度差 （0. 2mm〜0 . 5mm)， 能有效捕捉人体的 长、短须， 波峰及波谷都具有剃须功能。并且， 刀网罩 1上开设 "C"形或" S" 形的进须槽、 孔（如图 5、 图 6)。
本实施例中， 旋转轴由驱动轴套 2及锥面驱动轴 3形成， 动刀 4安装在驱 动连接件 6的 3个支持柱 10上， 通过热压熔的加工方法固定形成动刀组件， 驱动连接件 6中央开设方型的孔， 锥面驱动轴 3插入固定在孔内， 电机通过减 速齿轮及驱动臂传递转动力到达驱动连接件 6的下端， 驱动连接件 6转动， 带 动锥面驱动轴 3转动。 由于本实施例中刀网罩 1上没有冲压拉伸出来的定位柱 9 (如图 2所示）， 冲压加工工序相比于现有技术的刀头冲压工序要节约 7〜8 步， 且不会出现因定位柱 9变形造成动刀旋转定位不佳， 偏离轴心出现夹须、 拉须等不良现象。 动刀组件通过锥面驱动轴 3上的上锥面 12与固定安装在刀 网罩 1上的驱动轴套 2的内锥面 13接触带动； 动刀组件放置在弹力刀座 5内 表面的四个凸台 11上，动刀组件旋转时只与弹力刀座 5内表面的凸台 11接触, 而不是与弹力刀座的整个内环表面接触。这样的设计目的是减少动刀组件转动 时的摩擦力， 降低负荷电流， 提高电池的耐用度。 弹力刀座 5向动刀组件、 锥 面驱动轴 3向上施加押紧力， 并与刀网罩 1连接固定起来。 弹力刀座 5与刀网 罩 1的连接方法有多种， 弹力刀座 5是金属制造时， 可通过点悍的方法； 弹力 刀座 5是塑料 （POM或 ABS ) 制造时可在弹力刀座与刀网罩接口处设计嵌入卡 固（如图 9所示）的方式固定。动刀组件在弹力刀座 5的押紧力的作用下与刀网 罩 1内表面紧密接触， 能提高剃须锋利度， 在押紧力的作用下， 锥面驱动轴 3 上的上锥面 12与安装在刀网罩 1上的驱动轴套 2的内锥面 13也能准确吻合， 保证动刀组件沿轴心方向旋转， 不发生偏离的现象， 使剃须更顺滑、 不会发生 夹须、 拉须的现象。
本实施例中， 刀网罩 （1 ) 上进须孔槽的开槽的方法可以在冲压时完成也 可能通过冲压后电解去除的方法形成， 优选是冲压方式形成， 由于材料只有 0. 08〜0. Iran, 无法冲压拉伸出动刀定位柱 （如图 8中定位柱 9), 旋转轴是在 刀网罩 1中央部拉伸出驱动轴套 2的固定台及定位孔（如图 3)， 由驱动轴套 2 和锥面驱动轴 3形成转动机构， 使动力 4能相对刀网罩 1作切削运动， 由于材 料整体壁薄， 在剃须时能产生更好的剃须音质。
如前所述， 波浪状刀网罩 1 的波峰和波谷形成合适的高度差 （0. 2mm - 0 . 5mm), 能有效捕捉人体的长、 短须， 波峰及波谷都具有剃须功能。 目前市 面上的两环、三环弧面刀头结构存在弧面与弧面的过渡段无法剃须的问题（如 图 2)， 波浪状刀网罩 1能实现全网面的剃须， 剃须面积更大， 并且这种结构具 有以下优点： 短须或直、 硬的胡须容易被波峰剃除， 长须、 贴面生长的胡须或 柔软、 弯曲的胡须容易在波谷剃除， 各段的波峰和波谷呈现不高的高度差， 适 合不同长度的胡须导入， 即使较难剃的胡须也能分段剃除， 不残留须根。 所以 波浪状的刀网罩结构能适应复杂的面部轮廓，实现更贴面、更舒适的剃须感受。 以下结合附图介绍本发明刀头的优选制作例：
本发明第一优选制作例：
第一优选例刀头的加工工序流程： 刀网罩冲压一电解开槽、 开孔→注塑一 动刀冲压一光亮热处理→动刀热压熔固定一动刀研磨开刃一刀网罩、动刀配合 研磨→刀网罩抛光→组装一镀膜 对上述加工工序说明如下：
第一步， 以厚度为 0. 1 mm的不锈钢材料 （SUS420J2 ) 冲压拉伸出波浪状 曲面刀网罩 1， 由于材料比以往刀头材料 （厚度为 0. 5iran) 薄， 且与以往刀头 不同是中央部不需要拉伸出盲孔的定位柱 9， 这样的设计可以大大简化刀网罩 1五金模的设计及拉伸次数 （传统的盲孔拉伸次数 7到 8次或更多） 简化了五 金冲压步骤， 提高了刀网罩的加工精度 （弧面轮廓度及定位尺寸）。 刀罩网 1 的不锈钢材料表面经镜面抛光处理， 材料表面光泽度越好， 可减少接下来的后 序加工时间和步骤， 提高生产效率。
第二步， 通过电解方式利用振动电极的电化学作用下阳极被电解原理， 进 行刀网罩槽、 孔的加工， 形成胡须引入槽孔， 槽、 孔的分布可以根据设计需要 进行调整， 槽宽度为 0. 35〜0. 45mm, 孔直径为 0. 3〜0. 45mm, 根据剃须需要可 设计为槽孔结合 （如图 6)， 也可以是长槽和短槽结合 （如图 5)。 由于刀网罩 具有波浪状曲面， 电解开出的槽形可采用 "C"字型或 " S "字型， 这样可保证 胡须容易导入， 剃须时能有效锁住胡须不发生逃逸现象， 并且剃掉的胡须杂屑 不会弹出网面。
第三步， 通过注塑机注塑成型出驱动轴套 2、 锥面驱动轴 3、 弹力刀座 5、 驱动连接件 6四个零件， 塑料材质采用具有较强耐磨性， 且具有一定硬度、 韧 性的 POM材料或 ABS材料，为了提高强度及延长寿命 POM材料也可采用改性 POM (如 POM+20%玻纤）。
第四步， 以 0. 4mm的不锈钢材料 （SUS420J2 ) 通过冲床冲压出动刀 4， 为 减小剃须负荷电流及提高剃须锋利度， 动刀刀刃倾斜角度为 40度〜 60度， 刃 口与刀网罩接触面积尽量做到最小。
第五步， 分别对动刀 4和刀网罩 1进行光亮热处理加工， 淬火温度控制在 950〜1020°C， 并采用低温回火 250〜350°C， 以保证释放材料内应力， 热处理 工序使刀网罩 1及动刀 4具有合适的硬度 530〜600HV, 并具有韧性、 耐磨性， 能提高刀头的使用寿命。 由于第二步电解加工刀网罩的槽孔时， 材料硬度对电 解加工效率影响不大， 为避免热处理后加工好槽孔的刀网罩发生变形， 也可以 先进行热处理后再进行刀网罩电解开槽、 开孔。
第六步， 通过热压熔接方式把动刀热压熔固定在驱动连接件 6上， 并对动 力组件进行研磨开刃。 由于研磨刀片为单一片刀片， 可一次研磨完成。
第七步， 动力组件和刀网罩配合研磨， 以提高其弧面配合度。
第八步， 对刀网罩进行抛光处理， 提高刀网罩外表面的光泽度， 并提高剃 须时的肤感。
第九步， 把各个部件组装在一起， 锥面驱动轴 3和驱动轴套 2的接触面要 加入润滑油。 由于本实施例中刀网罩 1和弹力刀座 5采用嵌入卡位固定方式， 不需要另外进行焊接固定。
此外， 为达到更好的剃须效果， 对刀网罩 1的波峰部进行削薄处理， 使波 峰部材料厚度减到 0. 5〜0. 8mm。
为更好地提高刀头的使用寿命和表面硬度， 还可以对刀网罩、 动刀进行真 空涂层处理， 如 ALTIN、 CrCN、 镀 TI处理。 本发明第二优选制作例：
第二优选制作例刀头的加工工序流程： 刀网罩、 动刀冲压一光亮热处理→ 注塑一动刀研磨开刃一刀网罩、动刀配合研磨→刀网罩抛光一动刀热压熔固定 —组装
上述加工过程说明如下：
第一步， 以厚度为 0. 08 mm的不锈钢材料 （SUS420J2) 冲压拉伸出波浪状 曲面刀网罩 1， 在冲压过程中， 槽孔也同时完成。 同时，对厚度为 0. 4mm的不锈 钢材料（SUS420J2)通过冲压加工出动刀 4,动刀刀刃倾斜角度为 40度〜 60度。
第二步， 分别对动刀 4和刀网罩 1进行光亮热处理加工， 淬火温度控制在 950〜1020°C， 并采用低温回火 250〜350°C。 热处理加工后刀网罩及动刀硬度 为 530〜600HV。
第三步， 注塑出驱动轴套 2、 锥面驱动轴 3、 弹力刀座 5、 驱动连接件 6 四个零件， 塑料材质采用 POM或 ABS材料。
第四步， 对动力 4进行研磨开刃。
第五步， 动力 4和刀网罩 1配合研磨， 以提高其弧面配合度。
第六步， 刀网罩 1表面抛光处理， 提高刀网罩外表面的光泽度， 并提高剃 须时的肤感。
第七步， 动刀 4热压熔固定在驱动连接件 6上， 把各个部件组装固定在一 起°
由于上述实施例制作的刀头具有波浪状网面结构， 刀网罩网面更薄， 内刀 头与刀网罩完全接触， 实现全网面的剃须， 剃须面积最大化， 网面弧度与面部 轮廓的吻合度更佳， 并且具有锥面驱动传动机构及弹力增强结构， 解决了以往 剃须刀刀头夹须、 拉须、 锋利度不佳、 剃须音质差等问题， 能完美捕捉人体面 部皮肤轮廓， 实现更高效、 更舒适、 更彻底的剃须感受。 此外， 上述刀头制作 工艺较简单， 材料成本低， 适合大规模生产， 能取得较高的经济效益。

Claims

权 利 要 求 书
1、 一种旋转式电动剃须刀刀头， 其特征在于， 它由具有波浪状曲面的刀 网罩（1)、 驱动轴套（2)、 锥面驱动轴 （3)、 动刀 （4)、 弹力刀座（5)、 驱动 连接件 (6)构成， 其中：
刀网罩 （1 ) 上开设 "C"形或 "S"形的进须孔槽， 进须孔槽是圆孔与槽 结合， 或者是长槽与短槽相结合；
动刀 （4)通过热压熔方式固定在驱动连接件（6)上形成动刀组件， 动刀 组件由锥面驱动轴（3)的上锥面（12)与驱动轴套（2)的内锥面（13)接触带动， 动刀组件设置在弹力刀座 （5 ) 内表面的凸台（11)上， 动刀组件旋转只与弹力 刀座 （5) 内表面的凸台（11)接触；
弹力刀座 （5) 向动刀组件向上施加押紧力， 并与刀网罩（1 )连接起来， 动刀组件在押紧力的作用下与刀网罩（1 ) 内表面紧密接触。
2、 根据权利要求 1所述的旋转式电动剃须刀刀头， 其特征在于， 刀网罩 ( 1 ) 由金属材料制造而成， 厚度为 0. 05〜0. 12ram。
3、 根据权利要求 1所述的旋转式电动剃须刀刀头， 其特征在于， 刀网罩 ( 1 ) 由塑料材料制造而成， 厚度为 0. 08〜0. lmm。
4、 根据权利要求 1所述旋转式电动剃须刀头， 其特征在于， 动刀 （4)具 有圆弧面切刀， 刀刃倾斜角度为 40度〜 60度。
5、 根据权利要求 1所述的旋转式电动剃须刀头， 其特征在于， 弹力刀座 (5)具有伸缩结构， 能向上施加押紧力， 其材质为金属材料。
6、 根据权利要求 1所述的旋转式电动剃须刀头， 其特征在于， 弹力刀座 (5)具有伸缩结构， 能向上施加押紧力， 其材质为塑料。
7、 根据权利要求 1所述的旋转式电动剃须刀头， 其特征在于， 弹力刀座 (5) 内表面具有四个凸台（11)。
8、 根据权利要求 5所述的旋转式电动剃须刀头， 其特征在于， 弹力刀座 (5) 与刀网罩 （1 ) 通过点焊的方法连接起来。
9、 根据权利要求 6所述的旋转式电动剃须刀头， 其特征在于， 弹力刀座 (5) 与刀网罩 （1 ) 通过接口处设计嵌入卡固的方式连接起来。
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