Background technology
The cutting blade of the unsteady rotary shaver cutter head of many rings in the market adopts the cutting of integral sheet blank, the cutter pin adopts upwards bending half-twist, make the cutter pin become " U " shape, and form several concentric cutter rings, owing to adopt the single piece of material cutting to form, can accurately finish cutting and shaping bending, positioning accuracy is higher, do not need a large amount of assemblings again, saved manufacturing cost, time and labour, but when cutting, because the inner and outer ring blade is in the extension with bottom cutter pin, concentricity is restive, and yielding; Another kind is the cutter that adopts the independent different arm of forces, obtains the concentric cutter ring of a plurality of different arm of forces through assembling, but because will assemble, so the blade concentricity of different rings can not get effective assurance.
The utility model content
The utility model is at the deficiency that above-mentioned prior art exists, and proposed a kind of many rings rotary shaver cutter head member that floats, and it is reasonable in design, and cutting blade adopts the cutting of integral sheet blank and forms through bending, the concentricity height of the cutter ring that is made of blade.
The technical scheme that the utility model technical solution problem is taked is: the unsteady rotary shaver cutter head member of a kind of many rings comprises moving knife and stationary knife; Described moving knife is made up of moving knife seat and cutting blade, at least one cutting ring ring that the arm of force that described cutting blade comprises the cutter that the blank by the same sheet material of continuous cutting forms obtains by upwards or upwards and outside bending; Described stationary knife comprises into and must encircle and the spacer ring bar; The cutter number of rings of described cutting blade must number of rings equate with advancing of described stationary knife; It is characterized in that at least one cutter ring that the arm of force that described cutting blade also comprises the cutter that the blank by the same sheet material of continuous cutting forms obtains by bending and upwards downwards; The wire side of described stationary knife is arc surface, describedly advances and must be on the arc surface by ring, and advancing of described stationary knife must be serpentine by groove, constitutes blade A, the blade B of described cutting blade cutter ring and blade C and all is in and advances on the same arc surface that must ring arc surface of living in be complementary; It is a value range that the cutting edge of described blade A, blade B and blade C becomes point to contact and shear angle with the cutting edge that advances the palpus groove.
As a kind of preferred, the arm of force of the blade A of described cutting blade and the arm of force of blade C are the bendings that makes progress, and the arm of force of the blade B of described cutting blade is downwards and the bending that makes progress; The blade A of described cutting blade and blade B are arranged on the same cutter ring of moving cutter shaft, and the blade C of described cutting blade is arranged on another cutter ring of moving cutter shaft.
As a kind of preferred, the shearing angle of the cutting edge of the blade A of described cutting blade, blade B and blade C and the cutting edge of stationary knife is in 8 °~25 ° scopes.
In the utility model, cutting blade is formed moving knife by moving knife seat location, and moving knife with respect to stationary knife around same relative motion.
The utility model, by with the suitable bending with respect to other arm of force of the arm of force of blade, planning the wrap direction of this arm of force, thereby the free degree that can obtain to design changes cutter number of rings amount and blade quantity easily.The blade A of moving knife by with the arm of force with respect to the bending that makes progress of other arm of force, the blade B of moving knife is then by with the arm of force downward and bending that makes progress with respect to other arm of force, thereby is located in same concentric cutter ring; The arm of force of the blade C of moving knife is effectively upwards bending and being positioned in another concentric cutter ring, and this has just formed two concentric cutter rings.
The blade of moving knife of the present utility model can be by forming two or more cutter rings with the effective bending of the arm of force, and the wherein single arm of force can have a plurality of blades, and such design has improved raw-material utilization rate effectively.
The blade of described moving knife also can carry out moulding by the direction that changes bending line along the bending line direction lengthening that stretches out, and to reach the complementation of different blades, makes it produce different cutting characteristics.
Moving knife of the present utility model, moving knife seat adopt the injection moulding mode to be connected with cutting blade, have effectively prevented the relative motion between moving knife seat and cutting blade.
The utility model cutting blade adopts cutting of integral sheet blank and suitably bending of warp, the concentricity height of cutter ring, and the wire side of stationary knife is arc surface, not yielding, the cutting edge of blade becomes point to contact and form the shearing angle of certain limit with the cutting edge that advances the palpus groove, helps shearing, and has improved shear effect.
The specific embodiment
Fig. 1 and Fig. 2 are respectively the stationary knife and the moving knife of the unsteady rotary shaver cutter head member of many rings.Wherein moving knife is made up of cutting blade 1 and moving knife seat 2, adopts the injection moulding mode to link together, and sees Fig. 2; Cutting blade 1 comprises two cutting ring rings, blank by the same sheet material of continuous cutting forms, the arm of force of the blade A 6 of cutting blade 1 and the arm of force of blade C 8 are upwards bendings, the arm of force of blade B 7 then is downwards and the bending that makes progress, the blade A 6 of cutting blade 1 and blade B 7 are arranged on the same cutter ring of moving cutter shaft, blade C 8 then is arranged on another cutter ring of moving cutter shaft, as Fig. 3.Stationary knife comprises into must ring 4 and spacer ring bar 3, and advancing also to have two rings by ring 4, and the wire side of stationary knife is arc surface, advances to be on the arc surface by ring 4, and advancing of stationary knife must be serpentine by groove 5, sees Fig. 1 (a) and (b).The blade A 6 of cutting blade 1, blade B 7 and blade C 8 all be in advance must the same arc surface that is complementary of ring 4 arc surfaces of living on; The cutting edge of blade A 6, blade B 7 and blade C 8 becomes point to contact with the cutting edge that advances palpus groove 5, and it shears angle in 8 °~25 ° scopes.
Adopt the unsteady rotary shaver cutter head member of these many rings, the sharpness height, shear effect is good, can effectively reduce operating current, and advancing when shaving must be smooth and easy, shaves thoroughly, and is difficult for injuring skin.