CN102259144B - Manufacture method for shim of multi-head rotary electric shaver - Google Patents
Manufacture method for shim of multi-head rotary electric shaver Download PDFInfo
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- CN102259144B CN102259144B CN 201110197547 CN201110197547A CN102259144B CN 102259144 B CN102259144 B CN 102259144B CN 201110197547 CN201110197547 CN 201110197547 CN 201110197547 A CN201110197547 A CN 201110197547A CN 102259144 B CN102259144 B CN 102259144B
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000004080 punching Methods 0.000 claims abstract description 39
- 238000003825 pressing Methods 0.000 claims description 37
- 238000000465 moulding Methods 0.000 claims description 28
- 238000010008 shearing Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000007493 shaping process Methods 0.000 abstract description 5
- 238000005868 electrolysis reaction Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 abstract 3
- 238000005555 metalworking Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 244000309464 bull Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention provides a manufacture method for the shim of a multi-head rotary electric shaver, comprising the working procedures of shaping by stamping and tapping, wherein the working procedure of shaping by stamping is divided into pre-drawing and forming drawing; and the working procedure of tapping is carried out between pre-drawing and forming drawing. The manufacture method comprises the following concrete step: firstly pre-drawing on stamping equipment; punching on the stamping equipment; and carrying out forming drawing on the stamping equipment, wherein the size of the bottom surface of a workpiece during punching contains all areas requiring for punching. Compared with the prior art, the manufacture method disclosed by the invention is characterized in that a stamping method is used for tapping, so that the manufacture method is simple to process and has small material loss but avoid environmental pollution generated by the electrolysis process; the top wall only needs to be levelled and ground, the grinding amount is small, and the precision is easy to master; and stamping for punching and lower grinding amount improve the machining efficiency of the shim by above 20 times.
Description
Technical field
What the present invention relates to is a kind of manufacture method of stationary knife of multi-head rotary electric shaver, belongs to the hand-held cutting tool of rotary-cutter type in operation.
Background technology
Rotary electric shaver is a kind ofly to rely on the moving knife porose stationary knife outer with covering on moving knife that motor-driven is rotated to do relative shear and instrument that beard and hair is cut, and bull refers to that an electric shaver has a plurality of cutter heads that are made of moving stationary knife.The stationary knife of multi-head rotary electric shaver and single head stationary knife structure are basically identical, it is the cap shape part that the roof of the circle wall that makes it not rotate by being connected with the shaver housing and perforate consists of, its mesopore is that in the hole, incline is again the sword that coordinates with moving knife into the palpus hole.In stationary knife, the circle wall will have certain thickness so that enough rigidity and manufacturing and housing connecting elements to be provided, having the mesh part in roof can not be too thick because of its thickness that requires of elasticity and the back chipping degree that shaves, generally enclose wall thickness at 0.4 ~ 0.7mm, the mesh part is arranged at 0.07 ~ 0.12 mm.The manufacture method of this stationary knife in the past, be first the sheet material punching of 0.5 mm left and right thickness to be become cap shape part, then stamp out the endless belt on roof, then leave with hobbing technique and link up the slotted hole inside and outside the endless belt or use the electrolysis process perforate, carry out again the hardness modulation, at last with the roof skiving.But there are many deficiencies in described method, first be mainly due to roof and the circle wall thickness poor larger, namely the skiving amount is larger, can make the precision of roof thickness be difficult to assurance and processing time consuming, efficient is low; Also can make material hardness degenerate and produce inhomogeneously, and then make the in use bad and wearability variation of sharpness of cutter net.The secondth, with the perforate of metalworking mode, roof must be made monocycle or double-ring, in the middle of it, sink in zone, leaves straight slotted hole with the technique of hobbing inside and outside ring.The 3rd is when on net formula blade, hole shape is designed to curve shape better appearance and that skinfeel is comfortable, metalworking can't realize, use the Electrolyzed Processing mode to realize and only have, but the Electrolyzed Processing mode not only process slowly, and environment had pollute and ample resources is wasted.In addition, because being wear down end face perforate again after whole punching, so in the knuckle part of the edge of stationary knife roof with the circle wall, it is thick that Xu Kou is advanced in the side of making, advancing must weak effect, particularly long must and curling beard be difficult to enter, cause the decrease in efficiency that shaves.
Because the knuckle place at the edge of stationary knife roof and circle wall will have the side to advance Xu Kou, therefore still can not adopt the method perforate thereon of punching after the roof with cap shape part needs perforate part skiving, make perforate in the prior art can only select metalworking or electrolytic method.
Summary of the invention
For above-mentioned deficiency, technical problem to be solved by this invention is the hole opening technology of seeking except metalworking and electrolysis process, with the manufacture method of stationary knife that a kind of new multi-head rotary electric shaver is provided.
the manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, comprise punch forming and perforate operation, the thickness that it is the roof requirement that said punch forming comprises with thickness adds that the sheet stamping of allowance becomes to have circle wall and roof, the cap shape part of perforate on roof, the punch forming of cap shape part is divided into pre-pull and stretch and moulding pull and stretch, said perforate operation is placed between pre-pull and stretch and moulding pull and stretch, be that concrete manufacture method is dark for first carry out prestretching on pressing equipment, punch on pressing equipment again, carry out at last the moulding pull and stretch on pressing equipment, when wherein punching, the workpiece bottom size comprises the entire area of needs punching, said punch forming also comprise with sheet stamping become one second the circle wall, cap shape part and second the circle wall machine respectively after with second the circle wall be arranged in cap shape part, the processing of said cap shape part, second is enclosed the processing of wall and the second circle wall is arranged in cap shape part and carries out on same pressing equipment, and detailed process is:
⑴ select respectively the thin plate of design thickness to be cut into cap shape part strip and the second circle wall strip;
⑵ be arranged on cap shape part strip in feeding guide on the pressing equipment workbench, will enclose simultaneously the wall strip and be arranged in circle wall feeding guide on the pressing equipment workbench, and two guide rails intersect at the assembling mould;
⑶ start pressing equipment, exports from the other end after under the drive of feeding guide, two strips advance through joining along guide rail respectively;
⑷ the processing of cap shape part is from the strip direction of advance, successively by cutting in advance mould, pre-pull and stretch module, punching module, moulding pull and stretch module, assembling mould, shearing die;
⑸ the processing of the second circle wall is from the strip direction of advance, successively by cutting in advance mould, pre-pull and stretch module, moulding pull and stretch module, assembling mould, sizing die, riveting die, shearing die; Wherein sizing die is to make after two assembling parts more firmly mould of kimonos, and riveting die is that cap is filled under part circle wall under edge and the second circle wall along the mould that stamps out sags and crests;
⑷ the assembling mould in ⑸ and the combination of the shearing die in ⑷;
⑹ punching press is completed product and is collected at the blanking port of the second circle wall shearing die.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, drilling process are placed between the pre-pull and stretch operation of cap shape part and moulding drawing sequence, make and can realize completing punching with Sheet Metal Forming Technology.And the bottom surface after pre-pull and stretch comprises the entire area of needs punching, carries out the moulding pull and stretch after punching again and makes place, outermost hole part finally by knuckle, becomes the side and enters the palpus hole.Compared with prior art, the present invention adopts the method for punching perforate, makes that processing is simple, spillage of material is few, the environmental pollution of not adopting electrolysis process to produce, and roof need only be done the levelling grinding, and stock removal is very little, and precision is easily grasped; Punching punching and less stock removal make the working (machining) efficiency of stationary knife improve more than 20 times.With the stationary knife that the method obtains, basically identical because of the pore wall thickness on whole stationary knife, make shave stay root all definite and shorter with thinner roof thickness, obtain higher shave efficient and sense of touch.Also can not change because the cutting degree makes greatly material hardness, and the deflection that causes because of metalworking descends, precision improves, during use, sharpness, noise and shearing skinfeel are all obviously improved.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, product is divided into two parts forms, be about to enclose wall be divided into two-layer, one deck and roof one, another layer is determined two kinds of different wall thickness of desired circle wall and roof as stiffening ring on raw material.Make roof need only do the levelling grinding, stock removal is very little, and precision is easily grasped; Punching punching and less stock removal make the working (machining) efficiency of stationary knife improve more than 20 times.With the stationary knife that the method obtains, consistent because of the pore wall thickness on whole stationary knife, make shave stay root all definite and shorter with thinner roof thickness, obtain higher shave efficient and sense of touch.Also can not change because the cutting degree makes greatly material hardness, and the deflection that causes because of metalworking descends, precision improves, during use, sharpness, noise and shearing skinfeel are all obviously improved.Also can improve simultaneously the versatility of product and the rigidity of enhancing product.
Said the second circle wall first will point to an end bevel of cap shape part before in being installed to cap shape part, inclined-plane and outside wall surface formation sharp edge, and angle is less than 30 °.On the second circle wall, the shape on edge makes stationary knife circle wall and inboard, roof knuckle place that an outside recessed endless belt be arranged, and making into the palpus hole not only have the degree of depth the same with other parts in the marginal portion of stationary knife, and the obstruction of not enclosing wall in the hole.And in prior art, as shown in Figure 3, cap shape part 11 has the plane 1b of the circle wall thickness that forms because of the hobbing feed at circle wall one end because of hole 1a on roof, makes beard 3 not enter tool bore from nose end.Thereby the invention solves the deficiency that beard (particularly long beard or volume beard) can not enter the hole fully, further improved the efficient that shaves.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, the mould that uses in drilling process make and form width is that slotted hole and/or the equivalent diameter of 0.2 ~ 0.3mm is the hole of 0.4 ~ 0.5mm.Owing to adopting the punching punching, the hole gauge lattice on roof are not restricted by metalworking technique, and therefore not only slotted hole can be designed to various curve shapes, can also be designed to circular hole or various irregularly-shaped hole.Simultaneously, roof not only can be made monocycle or double-ring, can also make more rings or not form annular; Roof is the plane not necessarily, can also make cambered surface.So not only enrich the face shaping of stationary knife, also can realize the stationary knife moulding properer with skin.Must the hole reaching simultaneously must the hole upper equally in the degree of depth (place, hole wall thickness) with advancing of other parts everywhere in advancing of the marginal portion of stationary knife, be all roof thickness, eliminated because of place, hole wall thickness greatly and with the inconsistent some shortcomings that cause in other positions.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, the pre-pull and stretch of said cap shape part, punching, moulding pull and stretch all divide multistage carrying out, the moulding of the second circle wall also divides multistage carrying out, so that the non-design variations of material that will cause because of pull and stretch, punching, moulding etc. reduces.
Said the second circle wall is installed to method in cap shape part, can select one or more from following four kinds, one is that the second circle wall is enclosed within cap shape part in the mode of interference fit, and their assemble method is on pressing equipment, the second circle wall pressure to be entered in cap shape part after cap shape part is completed the moulding pull and stretch.Two is that the second circle wall is enclosed within cap shape part in the mode of welding, and their assemble method is after cap shape part is completed the moulding pull and stretch, the second circle wall to be inserted in cap shape part, welds with electric resistance welding method.Three is that the second circle wall is that the mode that bonds is enclosed within cap shape part, and their assemble method is that the second circle wall pressure that outer wall is scribbled metal-to-metal adhesive after cap shape part is completed the moulding pull and stretch on pressing equipment enters in cap shape part.Four is that the second circle wall is that the mode of riveting is enclosed within cap shape part, and their assemble method is the second circle wall to be inserted in again to clash into sags and crests after cap shape part is completed the moulding pull and stretch outside two-layer circle wall.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, the pre-pull and stretch of cap shape part, punching and its process of moulding pull and stretch are: first thin plate is cut into banded strip, again strip is sent in the mould of pressing equipment through feeding guide, the mould of pressing equipment is a straight line and arranges, from the strip direction of advance, have successively and cut in advance mould, pre-pull and stretch module, punching module, moulding pull and stretch module, shearing die; Wherein cut in advance mould and refer to workpiece is needed with material except involving the needed mould that separates with strip some, shearing die is the mould that workpiece is separated with strip fully; Module has referred to the multiple tracks mould.
Said punching die combination has Drawing Die, increases pull and stretch with reality and divides progression, further reduces non-design variations amount.
The manufacture method of the stationary knife of multi-head rotary electric shaver provided by the invention, the punching of the second circle wall is first thin plate to be cut into banded strip, again strip is sent in the mould of pressing equipment through feeding guide, the mould of pressing equipment is a straight line and arranges, from the strip direction of advance, have successively and cut in advance mould, pre-pull and stretch module, moulding pull and stretch module, shearing die; Wherein cutting in advance mould refers to workpiece is needed with material except the mould that involves the needed mould that separates with strip some and the workpiece mid portion is cut off or refer to the workpiece mid portion is cut off, pre-pull and stretch module is the mould that the flat board that will mesopore be arranged pulls into tubular, the moulding pull and stretch is to pull into circle wall shape and with upper end punching press mould in the slope, and shearing die is the mould that workpiece is separated with strip fully; Module has referred to the multiple tracks mould.
Description of drawings
Fig. 1 is the structure chart with the inventive method products obtained therefrom one embodiment, and Fig. 2 is I regional enlarged drawing in Fig. 1, in figure: 1-cap shape part, 2-the second circle wall, 3-beard, a-hole;
Fig. 3 is the structure chart of prior art centre circle wall and roof knuckle part, in figure: 11-cap shape part, 1a-hole, 1b-plane, 3-beard.
Fig. 4 is the technical process schematic diagram of one embodiment of the invention, in figure: 20-the second circle wall strip, 21-pressing equipment workbench, 22-second circle wall is cut mould in advance, the empty mould of 23-position, 24-the second pre-Drawing Die of circle wall, 25-the second circle wall shaping mould, 26-cap shape part strip, 27-assembles mould, the 28-sizing die, 29-riveting die, 30-the second circle wall shearing die, 31-cap shape forming parts Drawing Die, 32-cap shape part punching mould, the pre-Drawing Die of 33-cap shape part, 34-cap shape part is cut mould in advance.
The specific embodiment
1, a kind of manufacture method of stationary knife of multi-head rotary electric shaver, the product structure that make as shown in Figure 1, 2, it has two parts, the one, cap shape part 1, another part is the second circle wall 2, and cap shape part has stamping forming circle wall and roof, has hole a on roof.The hole is the passage that beard or other hairs enter, and the inboard rib that consists of of hole and roof is also the stationary knife blade.Cap shape part is with the thick thin plate punching of 0.14 ~ 0.28mm, and the second circle wall so that in the gained stationary knife two-layer circle wall thickness thickness be that conventional 0.5 mm left and right is purpose, adopt the material of respective thickness.The circle wall part inwall of the second circle wall outer wall and cap shape part is made interference fit, makes their strong bonded.The second circle wall upper end is the inclined-plane, and high one side, inclined-plane is at its outer wall, and the acutance of formation is 28 °.After the second circle wall and cap shape part was harmonious, the circle wall part inwall of cap shape part was close to by its sharp-pointed section, and at Kongzui outer rim upper/lower positions slightly, and the stationary knife that makes formation has an annular chamber that has enlarged in enclosing wall and roof knuckle place.Beard or other hairs 3 can pass from the outermost of stationary knife outermost marginal pore fully, and making shaves stays root extremely short, makes sense of touch good.And in prior art, the outermost wall of outermost marginal pore is the plane that the hobbing cutlery produces on thicker circle wall, and the circle wall to roof at the thickness at knuckle place because of the restriction of grinding process by thick to thin transition, so, as shown in Figure 3, beard or other hairs 3 should here be stopped, and stay root longer than other positions after shave, need to be with other parts of stationary knife shave again, otherwise sense of touch is relatively poor.
Its manufacturing process is the ⑴ cutting: select the thin plate of 0.14 ~ 0.28mm thickness to be cut into cap shape part strip and to select the thin plate of 0.22 ~ 0.36mm thickness to be cut into the second circle wall part strip;
⑵ material loading: cap shape part strip is arranged in feeding guide on the pressing equipment workbench, will encloses simultaneously the wall strip and be arranged in circle wall feeding guide on the pressing equipment workbench, two guide rails are vertically intersected on the assembling mould;
⑶ punching press: the image that the Sheet Metal Forming Technology process changes description from strip as shown in Figure 4, start pressing equipment, cap shape part strip 26 and 20 two strips of the second circle wall strip advance along the guide rail that intersects respectively under the drive of feeding guide, feeding guide is arranged on the workbench 21 of pressing equipment, the mould of pressing equipment is vertically installed by separated time in strip with axis, and the distance between adjacent two moulds of each mould on same straight line is identical.The counterdie of each mould is arranged on workbench, and patrix is arranged on the patrix mount pad, and the patrix mount pad is arranged on the ram of pressing equipment.The mode that feeding guide advances with the gap is carried strip, and wherein gap frequency is identical with ram punching press frequency, and forward travel distance is identical with mold interval.
The setting of mould is centered by the joining of two feeding guides, and the mould that this central point is installed is that cap shape part and second is enclosed the assembling mould that wall fits together, and the assembling mould also makes up the shearing die that cap shape part is cut off strip.See by the strip direction of advance, before this central point, install along the feeding guide of cap shape part strip and cut in advance together mould 34, one room mould, the three pre-Drawing Die 33 in road, four roads punching moulds 32, four road moulding Drawing Die 31.Install along the feeding guide of the second circle wall strip and cut in advance together mould 22, one room mould 23, the three pre-pull and stretch modules 24 in road, three road moulding pull and stretch modules 25.After this central point, along the feeding guide of the second circle wall strip, three road sizing dies 27, one riveting die 28, one room mould 29, one shearing die 30 are installed.The room mould is established for reserving the mold work space.Punching press is completed product and is collected at the blanking port of the second circle wall shearing die.
When Design of Dies, after second circle wall last one shaping mould completed the external diameter of workpiece and cap dress part at last together with the moulding Drawing Die complete after the internal diameter of workpiece be interference fit.
2, the manufacture method of the stationary knife of another kind of multi-head rotary electric shaver, sheet stamping is become to have the cap shape part semi-finished product of circle wall and roof on a pressing equipment, punching on another pressing equipment is again carried out the moulding pull and stretch at last on the 3rd pressing equipment.Heat-treat after completing.
3, connect example, sheet stamping is become the second circle wall on the 4th pressing equipment, fasten and rivet after on the 5th pressing equipment, the cap shape part of both matched in clearance and the second circle wall liner being harmonious.
4, by example 2, sheet stamping is become the second circle wall on the 4th pressing equipment, fasten and weld after on the 5th pressing equipment, the cap shape part of both matched in clearance and the second circle wall liner being harmonious.
5, by example 2, sheet stamping is become the second circle wall on the 4th pressing equipment, fasten after on the 5th pressing equipment, the cap shape part of both matched in clearance and the second circle wall liner being harmonious, be coated with at the second circle wall outer wall before being harmonious and brush the metal adhesive glue.
6, cap shape part machines through the progressive die on same pressing equipment with strip.
Claims (3)
1. the manufacture method of the stationary knife of a multi-head rotary electric shaver, comprise punch forming and perforate operation, the thickness that it is the roof requirement that said punch forming comprises with thickness adds that the sheet stamping of allowance becomes to have circle wall and roof, the cap shape part of perforate on roof, the punch forming of cap shape part is divided into pre-pull and stretch and moulding pull and stretch, said perforate operation is placed between pre-pull and stretch and moulding pull and stretch, be that concrete manufacture method is dark for first carry out prestretching on pressing equipment, punch on pressing equipment again, carry out at last the moulding pull and stretch on pressing equipment, when wherein punching, the workpiece bottom size comprises the entire area of needs punching, said punch forming also comprise with sheet stamping become one second the circle wall, cap shape part and second the circle wall machine respectively after with second the circle wall be arranged in cap shape part, it is characterized in that cap shape part processing, the second circle wall processing and the second circle wall is arranged in cap shape part and carries out on same pressing equipment, detailed process is:
⑴ select respectively the thin plate of design thickness to be cut into cap shape part strip and the second circle wall strip;
⑵ be arranged on cap shape part strip in feeding guide on the pressing equipment workbench, will enclose simultaneously the wall strip and be arranged in circle wall feeding guide on the pressing equipment workbench, and two guide rails intersect at the assembling mould;
⑶ start pressing equipment, exports from the other end after under the drive of feeding guide, two strips advance through joining along guide rail respectively;
⑷ the processing of cap shape part is from the strip direction of advance, successively by cutting in advance mould, pre-pull and stretch module, punching module, moulding pull and stretch module, assembling mould, shearing die;
⑸ the processing of the second circle wall is from the strip direction of advance, successively by cutting in advance mould, pre-pull and stretch module, moulding pull and stretch module, assembling mould, sizing die, riveting die, shearing die; Wherein sizing die is to make after two assembling parts more firmly mould of kimonos, and riveting die is that cap is filled under part circle wall under edge and the second circle wall along the mould that stamps out sags and crests;
⑷ the assembling mould in ⑸ and the combination of the shearing die in ⑷;
⑹ punching press is completed product and is collected at the blanking port of the second circle wall shearing die.
2. the manufacture method of the stationary knife of multi-head rotary electric shaver as claimed in claim 1, it is characterized in that first pointing to before said the second circle wall is in being installed to cap shape part an end bevel of cap shape part, inclined-plane and outside wall surface form sharp edge, and angle is less than 30 °.
3. the manufacture method of the stationary knife of multi-head rotary electric shaver as claimed in claim 1 or 2 is characterized in that the mould that uses makes that to form width be that slotted hole and/or the equivalent diameter of 0.2 ~ 0.3mm is the hole of 0.4 ~ 0.5mm in drilling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197547 CN102259144B (en) | 2011-07-15 | 2011-07-15 | Manufacture method for shim of multi-head rotary electric shaver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197547 CN102259144B (en) | 2011-07-15 | 2011-07-15 | Manufacture method for shim of multi-head rotary electric shaver |
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| CN102259144A CN102259144A (en) | 2011-11-30 |
| CN102259144B true CN102259144B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110197547 Active CN102259144B (en) | 2011-07-15 | 2011-07-15 | Manufacture method for shim of multi-head rotary electric shaver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753608A (en) * | 2013-12-23 | 2014-04-30 | 温州朗威电器有限公司 | Shaver, shaver foil and manufacturing process of shaver foil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881373A (en) * | 1974-03-13 | 1975-05-06 | Matsushita Electric Works Ltd | Method of making outer blade for electric shaver |
| CN2877994Y (en) * | 2005-12-12 | 2007-03-14 | 舟山市金达电机电器有限公司 | Multi-head rotation electric shaver tool bit |
| CN201361885Y (en) * | 2009-02-16 | 2009-12-16 | 浙江金达电机电器有限公司 | Stationary knife of multihead rotary type electric shaver |
| CN101767164A (en) * | 2009-12-31 | 2010-07-07 | 潍坊裕元电子有限公司 | Method for producing thin-wall metal ring and progressive stamping die adopted by method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141228A (en) * | 1994-11-15 | 1996-06-04 | Sanzen Seiko Kk | Production of outer edge for electrical razor |
-
2011
- 2011-07-15 CN CN 201110197547 patent/CN102259144B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881373A (en) * | 1974-03-13 | 1975-05-06 | Matsushita Electric Works Ltd | Method of making outer blade for electric shaver |
| CN2877994Y (en) * | 2005-12-12 | 2007-03-14 | 舟山市金达电机电器有限公司 | Multi-head rotation electric shaver tool bit |
| CN201361885Y (en) * | 2009-02-16 | 2009-12-16 | 浙江金达电机电器有限公司 | Stationary knife of multihead rotary type electric shaver |
| CN101767164A (en) * | 2009-12-31 | 2010-07-07 | 潍坊裕元电子有限公司 | Method for producing thin-wall metal ring and progressive stamping die adopted by method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-141228A 1996.06.04 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753608A (en) * | 2013-12-23 | 2014-04-30 | 温州朗威电器有限公司 | Shaver, shaver foil and manufacturing process of shaver foil |
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| CN102259144A (en) | 2011-11-30 |
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