WO2024016721A1 - 一种静刀片及其制造方法 - Google Patents

一种静刀片及其制造方法 Download PDF

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Publication number
WO2024016721A1
WO2024016721A1 PCT/CN2023/084933 CN2023084933W WO2024016721A1 WO 2024016721 A1 WO2024016721 A1 WO 2024016721A1 CN 2023084933 W CN2023084933 W CN 2023084933W WO 2024016721 A1 WO2024016721 A1 WO 2024016721A1
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WO
WIPO (PCT)
Prior art keywords
tooth
static blade
cutting
thickness
substrate
Prior art date
Application number
PCT/CN2023/084933
Other languages
English (en)
French (fr)
Inventor
钟海勇
Original Assignee
浙江海顺电工有限公司
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Publication date
Application filed by 浙江海顺电工有限公司 filed Critical 浙江海顺电工有限公司
Publication of WO2024016721A1 publication Critical patent/WO2024016721A1/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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/044—Manufacture and assembly of cutter blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/384—Dry-shaver foils; Manufacture thereof
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/48—Accessory implements for carrying out a function other than cutting hair, e.g. attachable appliances for manicuring

Definitions

  • the present invention relates to a hair trimming blade, and more specifically to a static blade and a manufacturing method of the static blade.
  • the static blade When trimming hair, the static blade mainly utilizes several side-by-side spaced blade teeth arranged at the edge of the shaving blade.
  • the thickness of existing static blade sheets is basically above 0.3mm.
  • the thickness of each cutting tooth is the same as the plate, and is affected by the thickness of the plate. The impact of this method is that the residual length of the hair roots is longer, resulting in incomplete shaving and failure to meet the user's needs.
  • the present invention provides a static blade and a manufacturing method thereof.
  • the innovative manufacturing method of the static blade not only the working strength of the static blade during production and use can be guaranteed, but also the thickness of each cutting tooth can be improved. Less than the thickness of the static blade, it ensures the trimming effect during hair trimming.
  • the technical solution adopted by the present invention is a static blade, which includes a base plate, and a tooth group composed of several cutting teeth is provided at at least one edge of the base plate. / Or the lower end face is provided with a removal groove so that the thickness of each cutting tooth in the cutter tooth group is smaller than the thickness of the substrate, and a tooth convex is formed on the upper end face and / or the lower end face at the tooth tip of each cutting tooth in the cutter tooth set.
  • the height of the tooth convex is less than or equal to the thickness of the substrate.
  • the tooth protrusions include an upper tooth protrusion and a lower tooth protrusion and are respectively arranged on the upper end surface and the lower end surface of the tooth tip of each cutting tooth.
  • the joints between the upper tooth protrusion and the lower tooth protrusion and the cutting teeth are smoothly transitioned respectively.
  • the width of the upper tooth convex is smaller than the width of the lower tooth convex.
  • the outer surface of the substrate is an arc-shaped surface when viewed from the projection direction of either end of the substrate.
  • the thickness of each cutting tooth in the cutter tooth group is smaller than the thickness of the substrate and greater than or equal to 0.08mm.
  • the depth of the removal groove is smaller than the thickness of the substrate.
  • a set of knife teeth is provided at opposite edges of both sides of the substrate.
  • the length of the set of cutter teeth is smaller than the length of the substrate so that the distance between the two ends of the set of cutter teeth and the two ends of the edge of the substrate is 3 mm to 10 mm.
  • the said removal chute includes an upper feed chute and a lower feed chute.
  • the upper feed chute is arranged on the outer surface of the base plate so that the upper end surface of the tooth tip of each cutting tooth in the cutter tooth group forms an upper tooth convex.
  • the lower feed chute is It is arranged on the inner surface of the base sheet so that the thickness of each cutting tooth in the cutter tooth group is smaller than the thickness of the base sheet and a lower tooth convex is formed on the lower end surface of the tooth tip of each cutting tooth.
  • this application also proposes a manufacturing method of the static blade, which includes the following steps:
  • Material selection Select metal materials with corresponding thickness and that can be heat treated according to user or design requirements;
  • stamping The metal material is fed into the stamping die and punched through the stamping equipment to form a static blade blank that meets the size requirements of the static blade and has a removal groove on at least one edge;
  • Gear cutting Use the gear cutting equipment to perform gear cutting on one side of the removal groove at the edge of the static blade blank, so that a number of spaced cutting teeth are formed on one side of the removal groove and a semi-finished product of the static blade;
  • polishing Use polishing equipment to smoothly chamfer each edge of the static blade semi-finished product and polish the outer surface of the static blade semi-finished product;
  • martensitic stainless steel raw material is selected in step S1, and the hardness of martensitic stainless steel is required to be between HV160 and HV220.
  • step S2 there is a SA cleaning and drying step after step S2 and before step S3.
  • the oil stain on the surface of the static blade blank is removed through cleaning equipment and the surface of the static blade blank is dried through drying equipment.
  • the cleaning equipment is a three-tank ultrasonic cleaning machine.
  • the first cleaning tank of the cleaning machine add 0.5kg to 1.5kg of oil removal powder and 0.5kg to 1.5kg of metal in 60 liters to 100 liters of pure water. Mix the cleaning agent evenly, then heat it to 55°C ⁇ 80°C, and clean for 150 seconds ⁇ 200 Seconds later, put it into the second cleaning tank; add pure water to the second cleaning tank and heat it to 30°C ⁇ 35°C, clean it for 90 seconds to 150 seconds and then put it into the third cleaning tank; add pure water to the third cleaning tank And heat it to 30°C ⁇ 35°C, wash it for 90 to 150 seconds and then put it into the bellows dryer.
  • the drying temperature is 40°C ⁇ 80°C and the drying time is 30 ⁇ 90 minutes.
  • step S3 the static blade blank is quenched by a heating device to increase the hardness of the static blade blank to between HRC52 and HRC60.
  • the heating device in step S3 is a vacuum heat treatment furnace.
  • the static blade blank is fed into the vacuum heat treatment furnace.
  • the temperature in the furnace is heated to 1000°C to 1100°C for 40 to 100 minutes, and then nitrogen is input to heat it within 40 to 80 minutes.
  • the static blade blank is cooled to normal temperature.
  • the gear cutting equipment in step S4 is a grinder
  • the mesh size of the gear cutting grinding wheel is between 220 and 260 mesh
  • the line speed of the gear cutting grinding wheel cutting operation is required to be 30 to 55 meters/minute.
  • the polishing equipment in step S5 is a drum polishing machine.
  • the drum speed is 40 to 90 rpm, and the drum polishing material is 6*6mm ⁇ 10*10mm brown corundum.
  • a grinder is used to grind the lower end surface of each cutting tooth so that the inner surface of the static blade semi-finished product forms a cutting working surface.
  • the flatness of the cutting working surface is not greater than 0.02 and the roughness is not greater than 0.6; the mesh number of the grinding wheel is Between 100 and 180 mesh, the grinding wheel linear speed during grinding is 32 to 36 meters/minute.
  • a S7 cleaning and drying step is provided after the S6 step, and the S7 cleaning and drying step is the same as the SA cleaning and drying step.
  • the beneficial effect of the present invention is that a removal groove is provided on the upper end surface and/or the lower end surface of each cutting tooth in the set of removing blade teeth on the upper end surface and/or the lower end surface of the substrate to ensure the working strength of the substrate during production or use.
  • the removal chute can also be used to reduce the thickness of the cutting teeth, and thinner cutting teeth can be used to improve the hair trimming effect.
  • the removal chute can also form tooth convexities on the upper and/or lower end surfaces of the tooth tips of each cutting tooth in the cutter tooth group. When in use, the tooth convexities can be used to protect the skin and prevent the tooth tips of each cutting tooth from forming. Too sharp will scratch the skin, which improves the safety of using the static blade.
  • the protrusions at the tips of the cutting teeth in the blade set can also act as a comb, stimulating the nerves in the head. Accelerate the blood circulation and blood oxygen supply of the head skin, thereby producing a more comfortable skin feel and improving the comfort of using the static blade.
  • Figure 1 is a front view of a static blade according to an embodiment of the present invention
  • Figure 2 is a perspective view of a static blade according to an embodiment of the present invention.
  • Figure 3 is a cross-sectional structural view at A-A in Figure 1;
  • Figure 4 is a side view of a static blade according to an embodiment of the present invention.
  • Figure 5 is a cross-sectional structural view of a second embodiment of a static blade according to the embodiment of the present invention.
  • Figure 6 is a cross-sectional structural view of a third embodiment of a static blade according to the embodiment of the present invention.
  • Figure 7 is a process flow chart of a manufacturing method of a static blade according to an embodiment of the present invention.
  • Figure 8 is a change diagram of the stamping forming step in the embodiment of the present invention.
  • the present invention is a static blade, including a base plate 1.
  • a tooth group 2 composed of several cutting teeth 21 is provided on at least one edge of the base plate 1.
  • the upper end face and/or the lower end face are provided with a removal groove 3 so that the thickness T3 of each cutting tooth in the cutter tooth group 2 is smaller than the thickness T2 of the substrate, and the upper end face and/or at the tooth tip of each cutting tooth 21 in the cutter tooth set 2 Or the lower end surface forms a tooth convex 4.
  • the upper and/or lower end surfaces of the substrate 1 are mechanically processed to remove material from the upper and/or lower end surfaces of each cutting tooth 21 in the cutter tooth group 2 to form a removal groove 3, which not only ensures that the substrate 1 is in production Or the working intensity during use can improve the working performance of the static blade; at the same time, the removal chute 3 can also be used to reduce the thickness of the cutting teeth 21, and the hair can be improved through the thinner cutting teeth 21 during the use of the static blade. pruning effect.
  • the removal groove 3 is used to form tooth protrusions 4 on the upper and/or lower end surfaces of the tooth tips of each cutting tooth 21 in the cutter tooth group 2.
  • the tooth protrusions 4 can be used to protect the skin during use and avoid various The tips of the cutting teeth 21 are too sharp and scratch the skin, which improves the safety of the static blade.
  • the tooth protrusions 4 at the tips of each cutting teeth 21 in the knife tooth group 2 can also act as a comb. It stimulates the nerves of the head, accelerates the blood circulation and blood oxygen supply of the head skin, thereby producing a more comfortable skin feel and improving the comfort of using the static blade.
  • the mechanical processing methods include but are not limited to grinders, CNC machining centers, milling machines, punches, lathes, and powder metallurgy forming equipment.
  • the surface of the substrate 1 forms a removal groove 3 to realize that the thickness T3 of each cutting tooth is different from the thickness T2 of the substrate to improve hair. Trimming effect.
  • the removal groove 3 on the outer surface of the substrate 1 is integrally formed by a stamping process, and the removal groove 3 on the inner surface of the substrate 1 is formed by grinding to reduce the thickness of each cutting tooth 21 in the tooth group 2. realized.
  • the stamping and grinding machine processing method is easy to implement and has high production efficiency. Therefore, the stamping and grinding machine processing method is the preferred implementation method.
  • the tooth protrusion height T1 is less than or equal to the substrate thickness T2. Since the tooth protrusions 4 only play a role in preventing skin puncture and stimulating skin nerves, as long as they protrude from the upper end surface and/or the lower end surface of each cutting tooth 21, therefore, the upper end surface and/or the lower end surface of the tooth tip of each cutting tooth 21 are /Or the tooth convex height T1 of the lower end face is set to be less than or equal to the substrate thickness T2. During production and processing, not only can the material cost be reduced, but the tooth convex 4 can be integrally formed in the stamping and grinding process, reducing the production of the tooth convex 4.
  • the tooth convex height T1 can also be set greater than the substrate thickness T2, but correspondingly increasing the substrate thickness T2 will increase the material cost or increase the processing difficulty of the tooth convex 4. Therefore, the implementation of this embodiment is a preferred implementation.
  • the tooth protrusions 4 include an upper tooth protrusion 41 and a lower tooth protrusion 42 and are respectively arranged on the upper and lower end surfaces of the tooth tips of each cutting tooth 21. 41 and the joints between the lower tooth protrusion 42 and the cutting teeth 21 have smooth transitions respectively. Corresponding upper tooth protrusions 41 and lower tooth protrusions 42 are respectively provided on the upper end surface and the lower end surface of the tooth tip of each cutting tooth 21 in the knife tooth group 2.
  • the upper tooth protrusions 41 can contact The skin can stimulate skin nerves during hair trimming, acting as a comb, accelerating blood circulation and blood oxygen supply in the skin, thereby producing a more comfortable skin feel and improving the comfort of using the static blade.
  • the lower tooth protrusions 42 can not only prevent the tips of the cutting teeth 21 from piercing the skin and improve the safety of the static blade, but also prevent the cutting teeth 21 on the movable blade from being cut when the movable blade reciprocates along the static blade. skin, improving the safety of the shaver.
  • the upper tooth protrusion 41 is formed by forming a downwardly concave removal groove 3 on the outer surface of the substrate 1 through a stamping process, controlling the distance between the edge of the removal groove 3 and the edge of the substrate 1, and then using The cutting wheel of the grinder cuts the side of the substrate 1 where the removal groove 3 is provided, so that a plurality of cutting teeth 21 with toothed protrusions 41 can be formed in the removal groove 3 . If there is no need to provide an upper tooth protrusion 41 at the tooth tip of each cutting tooth 21, the outer edge of the removal chute 3 can be overlapped with the edge of the substrate 1 or placed outside the edge of the substrate 1 to make the substrate The outer surface of 1 forms an open downward recessed material removal chute 3.
  • the lower tooth protrusions 42 are formed by grinding the bottom of the recess 3 which is concave downward along the outer surface of the substrate 1, and the lower teeth are formed by controlling the distance between the edge of the grinding wheel and the edge of the inner surface of the substrate 1. Convex 42. If the lower tooth protrusion 42 is not needed, the edge of the inner surface of the substrate 1 can be covered by controlling the grinding wheel.
  • the upper tooth protrusion 41 and the lower tooth protrusion 42 can be set at the same time, or only one of them can be set, which can be determined according to the user's needs.
  • the upper tooth convex width T6 is smaller than the lower tooth convex width T7, so that the upper tooth convex 41 and the lower tooth convex 42
  • the projection shape is a tapered shape with a narrow top and a wide bottom, which not only facilitates the gear cutting operation of the gear cutting grinding wheel and improves the production efficiency of the static blade; moreover, the cutting can also be adjusted by controlling the width ratio of the upper tooth convex 41 and the lower tooth convex 42
  • the sharpness of the blades on both sides of the tooth 21 ensures the hair trimming performance of each cutting tooth 21 in the tooth set 2 .
  • the specific settings can be determined according to actual needs or user requirements.
  • the outer surface of the base sheet 1 is an arc surface when viewed from the projection direction of either end of the base sheet 1.
  • the base sheet 1 is set to an arc shape, and the blade tooth set 2 At one end of the arc-shaped base sheet 1, when in use, the arc-shaped base sheet 1 can improve the fit between the static blade and the skin, improve the hair trimming efficiency, and also improve the overall beauty of the cutter head or shaving tool.
  • the base sheet 1 can also be in a horizontal shape, but due to the horizontal static blade, the fit between the static blade and the skin is relatively poor during use. Therefore, using an arc-shaped base sheet 1 is a preferred embodiment.
  • the thickness T3 of each cutting tooth in the tooth group 2 is smaller than the thickness T2 of the base sheet and greater than or equal to 0.08mm.
  • the substrate thickness T2 is between 0.3mm and 2mm. In actual use, it will be changed according to different uses. For example, when used in the shaving field, the substrate thickness T2 is preferably between 0.35 and 0.5 mm. When used in the field of hairdressing, the substrate thickness T2 of the static blade can be increased accordingly, which is basically above 0.5mm. The specific selection can be determined according to the structure of the static blade.
  • the substrate thickness T2 of static blades used in the shaving field is preferably processed from sheets with a thickness of 0.35mm or above, which not only ensures the working strength of the static blades, but also reduces production costs to the greatest extent.
  • the thickness T3 of each cutting tooth 21 in the cutter tooth set 2 can also be determined according to the hardness of the substrate 1, for example:
  • the thickness of the cutter tooth group 2 (which can also be regarded as the thickness T3 of each cutting tooth) is preferably 0.13mm ⁇ 0.03mm. This will prevent hair from causing the cutting teeth 21 to twist, deform, crack or break when they enter the hair guide grooves adjacent to the cutting teeth 21, ensuring the working stability of each cutting tooth 21 in the cutter tooth group 2 and improving the hair trimming effect.
  • the toughness of the base sheet 1 is improved, and the thickness of the cutter tooth group 2 can be set at 0.10mm or less, thus preventing each cutting tooth 21 in the cutter tooth group 2 from cracking or chipping. Break.
  • each cutting tooth 21 in the cutter tooth group 2 can be enlarged accordingly.
  • the thickness T3 of each cutting tooth in 2 is set to one-half, two-thirds or three-quarters of the thickness T2 of the base sheet to ensure the performance of the shaving blade.
  • the specific thickness of each cutting tooth 21 in the cutter tooth set 2 can be flexibly set according to different materials and hardnesses of the substrate 1, and is not further limited in this embodiment.
  • the depth of the removal chute T4 is smaller than the thickness T2 of the base sheet, and the removal chute 3 is set to a recessed depth along the outer surface of the base sheet 1. Less than the substrate thickness T2, when grinding the inner surface of the cutter tooth set 2 to form the cutting working surface 5, not only the thickness T3 of each cutting tooth in the cutter tooth set 2 is reduced to the greatest extent, but also the edge of the removal groove 3 can be used.
  • the step surface 6 formed by the downward recess of the outer surface of the base sheet 1 ensures the working strength of each cutting tooth 21 in the tooth set 2 and improves the hair trimming performance and trimming effect of the static blade.
  • the depth T4 of the removal chute is set smaller than the thickness T2 of the substrate.
  • the depth of the removal groove T4 (that is, the depth of the depression of the cutter tooth group 2 along the outer surface of the substrate 1) can also be determined according to the actual thickness of each cutting tooth 21 in the cutter tooth group 2, for example:
  • each cutting tooth in the cutter tooth group 2 When the thickness T3 of each cutting tooth in the cutter tooth group 2 is required to be less than 0.10mm, the grinding amount on the inner surface of each cutting tooth 21 in the cutter tooth group 2 is relatively large. In order to ensure the working strength of each cutting tooth 21 in the cutter tooth group 2 , the depth of the removal chute T4 can be appropriately reduced (the optimal depth of the removal chute T4 is less than the thickness of the substrate half of T2).
  • the step surface 6 between the removal chute 3 and the substrate 1 will be subject to less grinding, so that The step surface 6 is used to support the tooth roots of each cutting tooth 21 in the cutter tooth set 2 to ensure the working strength of each cutting tooth 21 in the cutter tooth set 2 .
  • each cutting tooth 21 in the cutter tooth set 2 When the thickness of each cutting tooth 21 in the cutter tooth set 2 is required to be greater than 0.20 mm, the grinding amount of the inner surface of each cutting tooth 21 in the cutter tooth set 2 is relatively small. At this time, the depth of the depression of the removal groove 3 along the outer surface of the substrate 1 can be appropriately increased.
  • the depth of the removal groove T4 is greater than the thickness T2 of the substrate or greater than two-thirds or one-half of the thickness T2 of the substrate, etc. , can also ensure the working strength of each cutting tooth 21 in the cutter tooth group 2.
  • the height difference between the bottom plane of the removal chute 3 (which can also be regarded as the outer surface of each cutting tooth 21 in the cutter tooth group 2) and the outer surface of the substrate 1 is correspondingly increased.
  • the depth T4 of the groove 3 recessed downward along the substrate 1 is smaller than the thickness T2 of the substrate.
  • the cutting chute 3 is respectively provided at the opposite edges of the base sheet 1, and A tooth cutting operation is performed on one side of each removal chute 3 to form a set of cutter teeth 2 on both sides of the substrate 1 respectively.
  • the length of the knife tooth group 2 (can also be regarded as the removal chute 3 length) is less than the length of the substrate 1 so that the distance T5 between the two ends of the blade set 2 and the two ends of the substrate 1 is 3 mm to 10 mm, preferably 5 mm.
  • the edge distance T5 can be used to effectively cut both sides of the substrate 1
  • the cutter tooth set 2 plays a supporting role to prevent distortion and deformation of each cutting tooth 21 in the cutter tooth set 2 during use, ensuring the overall working strength and working stability of the static blade.
  • each cutting tooth 21 can only use the tooth root to connect to the substrate 1.
  • each cutting tooth 21 can Teeth 21 are easily twisted and deformed, seriously affecting the performance and working stability of the static blade.
  • the edge distance T5 at both ends of the substrate 1 can also be set larger, such as 15mm, 20mm or more, but increasing the edge distance T5 will correspondingly reduce the number of cutting teeth 21 in the tooth group 2. Reduce shaving efficiency. Therefore, the optimal implementation method is to set the distance T5 between the two ends of the substrate 1 at 3 mm to 10 mm. While ensuring the working strength of each cutting tooth 21 of the blade group 2, there is no need to increase the thickness of the substrate 1 to ensure a static blade. The working intensity is improved and the material cost of the static blade is reduced.
  • the removal chute 3 includes an upper feeding chute 31 and a lower feeding chute 32 , the upward feeding groove 31 is arranged on the outer surface of the substrate 1 so that the upper end surface of the tooth tip of each cutting tooth 21 in the cutter tooth group 2 forms an upper tooth protrusion 41.
  • the upward feeding groove 31 is integrally formed with the substrate 1 through a stamping process.
  • the outer surface of the upper material chute 31 is lower than the outer surface of the substrate 1, and the inner surface protrudes from the inner surface of the substrate 1, and then the gear cutting operation is performed on one side of the substrate 1 through a cutting grinding wheel, so that the upper material chute 31 31 forms a tooth group 2 composed of several cutting teeth 21.
  • the outer surface of the upper material chute 31 also constitutes the outer surface of each cutting tooth 21.
  • the width of the upper tooth protrusion 41 can be controlled by controlling the distance between the outer edge of the upper feed chute 31 and the edge of the substrate 1, so that the upper tooth protrusion 41 is not formed on the upper end surface of each cutting tooth 21.
  • the upper material chute 31 When the upper material chute 31 is formed on the outer surface of the substrate 1, it is only necessary to overlap or exceed the outer edge of the base sheet 1. In this way, when the upper material chute 31 is formed on the outer surface of the base sheet 1, an open concave surface is formed on one side. groove. Whether it is necessary to reserve the upper tooth protrusion 41 or how much width of the upper tooth protrusion 41 is required can be achieved by adjusting the position of the insert in the stamping die of the upper material chute 31 .
  • the cutting groove 32 is provided on the inner surface of the substrate 1 so that the thickness T3 of each cutting tooth in the tooth group 2 is smaller than the thickness T2 of the substrate and a lower tooth protrusion 42 is formed on the lower end surface of the tooth tip of each cutting tooth 21 .
  • the inner surface of the upper chute 31 protrudes from the inner surface of the substrate 1.
  • the inner surface of the upper chute 31 protruding from the inner surface of the base 1 is ground by grinding equipment. While the cutting operation forms the cutting working surface 5, the thickness T3 of each cutting tooth can also be reduced, thereby improving the hair trimming effect.
  • the distance between the grinding wheel and the side wall of the substrate 1 can be used to form a lower tooth protrusion 42 on the lower end surface of each cutting tooth 21 . Whether to reserve the lower tooth protrusion 42 or the width of the lower tooth protrusion 42 on the lower end surface of each cutting tooth 21 can be achieved by simply adjusting the distance between the grinding wheel of the grinding equipment and the side wall of the substrate 1 .
  • this application also proposes a manufacturing method of static blades, which includes the following steps:
  • Material selection Select metal materials with corresponding thickness and heat treatment according to user or design requirements.
  • the metal materials can be martensitic stainless steel sheets or materials, and the hardness requirement is between HV160 and HV220. Since the static blade needs to be in contact with the skin, and the skin will secrete some oil or sweat, and the static blade needs to be washed after the hair is trimmed, stainless steel has good corrosion resistance, which can effectively prevent the static blade from being eroded by grease or sweat. Or rust during washing to ensure the safety and hygienic performance of the static blade.
  • other metal materials can also be used, such as Ordinary iron sheets, copper sheets, etc., but ordinary iron sheets or copper sheets have poor corrosion resistance, so stainless steel is the preferred embodiment.
  • the hardness of martensitic stainless steel is limited to HV160 ⁇ HV220, mainly to take into account subsequent stamping.
  • the Vickers hardness of martensitic stainless steel raw materials is low, lower than HV160. After stamping, it is easy to occur. Secondary deformation; if the Vickers hardness is high, higher than HV220, it is easy to cause cracks in the static blade blank during stamping. Therefore, it is preferred to limit the hardness of the martensitic stainless steel raw material to between HV160 and HV220. Way.
  • Stamping Feed the stainless steel sheet or strip into the stamping die and punch it through the stamping equipment to form a static blade blank that meets the size requirements of the static blade and has a removal slot 3 on at least one edge.
  • the stamping die is a progressive die. After punching positioning holes, trimming, preforming, shaping, trimming and cutting stations, the metal sheet or strip is punched on both sides. The static blade blank goes up to the trough 31.
  • the cleaning equipment is a three-tank ultrasonic cleaning machine. In the first cleaning tank of the cleaning machine, add 0.5kg to 1.5kg of oil removal powder and 0.5kg to 1.5kg of metal cleaning powder in 60 liters to 100 liters of pure water.
  • the agent evenly, then heat it to 55°C ⁇ 80°C, clean it for 150 seconds ⁇ 200 seconds and then put it into the second cleaning tank; add pure water to the second cleaning tank and heat it to 30°C ⁇ 35°C, clean it for 90 seconds ⁇ 150 seconds and then put it into the third cleaning tank; add pure water to the third cleaning tank and heat it to 30°C ⁇ 35°C, wash it for 90 seconds ⁇ 150 seconds and then put it into the bellows dryer, the drying temperature is 40°C ⁇ 80°C , keep the surface of the static blade blank clean and dry after the drying time is 30 to 90 minutes.
  • the heating device is a vacuum heat treatment furnace.
  • the static blade blank is sent into the vacuum heat treatment furnace.
  • the temperature in the furnace is heated to 1000°C ⁇ 1100°C and maintained. 40 to 100 minutes, and then input nitrogen to cool the static blade blank to normal temperature within 40 to 80 minutes, thereby increasing the hardness of the static blade blank to between HRC52 and HRC60.
  • the use of a vacuum heat treatment furnace can effectively prevent oxidation, decarburization, and carburization of the static blade blank during the heat treatment process. It can maintain a better bright surface on the static blade surface and improve the hardness of the static blade blank.
  • ordinary heating furnaces can also be used To improve the hardness of the static blade blank, but the ordinary heating furnace causes the surface of the static blade blank to undergo a reduction reaction with oxygen, which not only makes the surface appearance of the static blade blank poor, but also the oxide scale produced on the surface of the static blade blank will affect the hardness of the static blade blank. Therefore, using a vacuum heat treatment process is a preferred implementation.
  • the hardness of the static blade blank is increased to between HRC52 and HRC60 through vacuum heat treatment, mainly considering the subsequent gear cutting operation, preventing the static blade blank from being distorted and deformed during the gear cutting operation, improving the production efficiency and yield of the gear cutting process, and reducing production costs.
  • Gear cutting Use the gear cutting equipment to perform gear cutting operations on one side of the removal groove 3 at the edge of the static blade blank, so that the side of the removal groove 3 forms a number of spaced-apart static blade semi-finished products with cutting teeth 21;
  • the gear cutting equipment is a grinder.
  • the gear cutting grinding wheel of the grinder is used to perform gear cutting operation on one side of the edge of the static blade blank to form a semi-finished product of the static blade.
  • the depth of the cutting teeth is close to the inner side wall of the removal chute 3 .
  • the mesh number of the gear cutting grinding wheel is between 220 and 260 mesh to ensure the smoothness of the side walls on both sides of each cutting tooth 21.
  • the line speed of the gear cutting grinding wheel for the gear cutting operation requires 30 to 55 meters/minute, preferably 35 meters/minute. point.
  • polishing After the static blade semi-finished product is formed by stamping and gear cutting operations, the edges of the static blade are relatively sharp and can easily scratch the skin during use. Therefore, the edges of the static blade semi-finished product are rounded and chamfered through polishing equipment. Polishing the outer surface of the semi-finished product of the static blade makes the surface of the semi-finished product of the static blade brighter and improves the overall appearance of the semi-finished product of the static blade.
  • the polishing equipment is a drum polishing machine. During the drum polishing operation, the drum speed is 40 to 90 rpm, preferably 55 rpm.
  • the drum polishing material is 6*6mm ⁇ 10*10mm high aluminum. Porcelain, preferably 6*6mm high alumina porcelain, the rolling material can also be replaced by brown corundum of the same size.
  • the cleaning equipment is a three-slot ultrasonic cleaning machine. In the first cleaning tank of the cleaning machine, add 0.5kg to 1.5kg of oil removal powder and 0.5kg to 1.5kg of metal cleaning in 60 liters to 100 liters of pure water.
  • the agent evenly, then heat it to 55°C ⁇ 80°C, clean it for 150 seconds ⁇ 200 seconds and then put it into the second cleaning tank; add pure water to the second cleaning tank and heat it to 30°C ⁇ 35°C, clean it for 90 seconds ⁇ 150 seconds and then put it into the third cleaning tank; add pure water to the third cleaning tank and heat it to 30°C ⁇ 35°C, wash it for 90 seconds ⁇ 150 seconds and then put it into the bellows dryer, the drying temperature is 40°C ⁇ 80°C, dry for 30-90 minutes to keep the finished surface of the static blade clean and dry, and then inspect and package it to complete the entire static blade production process.
  • the static blade blank is formed after the work station; put the static blade blank into the three-tank ultrasonic cleaning machine, add 1kg of oil removal powder and 1kg of metal cleaning agent to 80 liters of pure water in the first cleaning tank of the cleaning machine and mix evenly, and then Heat to 65°C, clean for 180 seconds and then put it into the second cleaning tank; add pure water to the second cleaning tank and heat to 35°C, clean for 120 seconds and then put it into the third cleaning tank; add pure water to the third cleaning tank water and heat to 30°C, rinse for 150 seconds and remove.
  • the semi-finished static blade with cut teeth into the drum polishing machine, adjust the drum speed to 55 rpm, and put the 6*6mm high alumina porcelain drum polishing material into the drum. After 180 minutes of drum polishing, take it out and put it in again.
  • a grinding wheel with a mesh size of 180 is selected, and the linear speed of the grinding wheel is adjusted to 35 meters/minute to grind the inner surface of the static blade to form the cutting working surface 5 and the lower tooth convex 42 and finally form the finished product.
  • the static blade blank is formed after the work station; put the static blade blank into the three-tank ultrasonic cleaning machine, add 1.5kg of oil removal powder and 1.5kg of metal cleaning agent to 100 liters of pure water in the first cleaning tank of the cleaning machine and mix them evenly , then heated to 80°C, cleaned for 150 seconds and put into the second cleaning tank; Add pure water to the cleaning tank and heat it to 30°C, clean it for 100 seconds and then put it into the third cleaning tank; add pure water to the third cleaning tank and heat it to 30°C, clean it for 100 seconds and then take it out.
  • the semi-finished static blade with cut teeth into the drum polishing machine, adjust the drum speed to 70 rpm, and put the 8*8mm high alumina porcelain drum polishing material into the drum. After drum polishing for 200 minutes, take it out and put it in again.
  • a grinding wheel with a mesh size of 160 is selected, and the linear speed of the grinding wheel is adjusted to 32 meters/minute to grind the inner surface of the static blade to form the cutting working surface 5 and the lower tooth convex 42 and finally form the finished product.
  • the static blade blank is formed after the work station; put the static blade blank into the three-tank ultrasonic cleaning machine, add 0.8kg of oil removal powder and 1.2kg of metal cleaning agent to 60 liters of pure water in the first cleaning tank of the cleaning machine and mix them evenly , then heated to 60°C, cleaned for 150 seconds and then placed in the second cleaning tank; add pure water to the second cleaning tank and heated to 30°C, cleaned for 100 seconds and then placed in the third cleaning tank; in the third cleaning tank Add purified water and heat to 30°C, wash for 140 seconds and remove.

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Abstract

一种静刀片，包括基片（1），在基片的至少一侧边缘处设有若干个切割齿（21）组成的刀齿组（2），在基片的上端面和/或下端面设有去料槽（3）使刀齿组中各切割齿厚度（T3）分别小于基片厚度（T2），并且在刀齿组中各切割齿的齿尖处上端面和/或下端面形成齿凸（4）。还包括一种静刀片的制造方法。在基片的上端面和/或下端面设置去料槽，利用去料槽来减少切割齿的厚度来提升毛发的修剪效果。其次，去料槽还能切割齿的齿尖上端面和/或下端面形成齿凸，利用齿凸对皮肤起到防护作用，避免各切割齿齿尖过于锋利而划伤皮肤，提升静刀片的使用安全性，并且齿凸还能起到梳子的作用，刺激皮肤神经，加速皮肤血液循环和血氧供应，从而产生较为舒适的肤感，提升静刀片的使用舒适度。

Description

一种静刀片及其制造方法
本申请要求于2022年7月18日提交中国专利局、申请号为202210842353.0、发明名称为“一种静刀片及其制造方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种毛发修剪刀片，更具体的说是涉及一种静刀片及静刀片的制造方法。
背景技术
静刀片在修剪毛发时主要利用设置在剃毛刀片边缘处的若干个并排的间隔刀齿实现的。为保证静刀片切割面的平面度及工作强度，避免在生产使用过程中发生扭曲变形，现有的的静刀片板材厚度基本都在0.3mm以上。采用较厚的板材虽然可防止静刀片在生产和使用时的扭曲变形，保证静刀片切割面的平面度及工作强度，但在毛发修剪过程中，各切割齿与板材的厚度相同，受板材厚度的影响，毛发根部残留长度较长，导致毛发剃不干净，无法满足用户的使用需求。
发明内容
为了解决以上技术问题；本发明提供一种静刀片及其制造方法，通过创新的静刀片的制造方法，不仅可保证静刀片在生产使用时的工作强度，同时，还可使各切割齿的厚度小于静刀片厚度，保证毛发修剪过程中的修毛效果。
为解决以上技术问题，本发明采取的技术方案是一种静刀片，包括基片，在基片的至少一侧边缘处设有若干个切割齿组成的刀齿组，在基片的上端面和/或下端面设有去料槽使刀齿组中各切割齿厚度分别小于基片厚度，并且在刀齿组中各切割齿的齿尖处上端面和/或下端面形成齿凸。
优选的，所述齿凸高度小于或等于基片厚度。
优选的，所述的齿凸包括上齿凸及下齿凸并分别设置在各切割齿的齿尖上端面和下端面，上齿凸和下齿凸与切割齿的接合处分别圆滑过渡。
优选的，从各切割齿的齿尖投影方向看，上齿凸宽度小于下齿凸宽度。
优选的，从基片两端的任一端投影方向看，基片的外表面为弧形面。
优选的，刀齿组中各切割齿厚度小于基片厚度并大于或等于0.08mm。
优选的，去料槽深度小于基片厚度。
优选的，在基片相对的两侧边缘处分别设有刀齿组，刀齿组的长度小于基片的长度使刀齿组两端距基片两端边缘距离在3mm～10mm。
优选的，所述的去料槽包括上去料槽和下去料槽，上去料槽设置在基片的外表面使刀齿组中各切割齿的齿尖处上端面形成上齿凸，下去料槽设置在基片内表面使刀齿组中各切割齿厚度小于基片厚度并在各切割齿的齿尖处下端面形成下齿凸。
为方便上述静刀片的生产加工，本申请还提出一种静刀片的制造方法，包括有以下步骤：
S1.材料选取：根据用户或设计要求选取相应厚度并且可进行热处理的金属材料；
S2.冲压成型：将金属材料送入冲压模具内并通过冲压设备冲压形成符合静刀片尺寸要求，且至少一侧边缘处具有去料槽的静刀片坯料；
S3.热处理：将静刀片坯料送入加热装置内进行淬火处理，提升静刀片坯料的硬度；
S4.切齿：利用切齿设备对静刀片坯料边缘处的去料槽一侧进行切齿作业，使去料槽一侧形成若干个间隔设置的切割齿的静刀片半成品；
S5.抛光：通过抛光设备对静刀片半成品各边缘进行圆滑倒角处理并对静刀片半成品外表面进行抛光处理；
S6.磨削：对各切割齿的下端面进行磨削作业形成切割工作面并最终形成静刀片成品。
优选的，在S1步骤中选用马氏体不锈钢原料，且马氏体不锈钢的硬度要求在HV160～HV220之间。
优选的，在S2步骤之后S3步骤之前还设有SA清洗烘干步骤，清洗烘干步骤通过清洗设备清除静刀片坯料表面的油污并通过烘干设备干燥静刀片坯料表面。
优选的，所述的清洗设备为三槽式超声波清洗机，在清洗机的第一清洗槽内按60升～100升纯净水中加入0.5kg～1.5kg的除油粉和0.5kg～1.5kg金属清洗剂混合均匀，然后加热至55℃～80℃，清洗150秒～200 秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入风箱烘干机内，烘干温度40℃～80℃，烘干时间30～90分钟。
优选的，在S3步骤中通过加热装置对静刀片坯料进行淬火处理将静刀片坯料硬度提升至HRC52～HRC60之间。
优选的，S3步骤中加热装置为真空热处理炉，静刀片坯料送入真空热处理炉内,炉内温度加热至1000℃～1100℃保持40～100分钟，然后输入氮气在40分钟～80分钟内将静刀片坯料冷却至常温。
优选的，S4步骤中切齿设备为磨床，切齿砂轮目数在220～260目之间，切齿砂轮切齿作业的线速要求30～55米/分。
优选的，S5步骤中抛光设备为滚筒抛光机，滚抛作业时滚筒转速在40～90转/分,滚抛料为6*6mm～10*10mm的棕刚玉。
优选的，S6步骤中通过磨床对各切割齿下端面进行磨削作业使静刀片半成品内表面形成切割工作面，切割工作面的平面度不大于0.02，粗糙度不大于0.6；磨削砂轮目数在100～180目之间，磨削时砂轮线速在32～36米/分。
优选的，在S6步骤后还设有S7清洗烘干步骤，S7清洗烘干步骤与SA清洗烘干步骤相同。
本发明的有益效果是在基片的上端面和/或下端面去除刀齿组中各切割齿上端面和/或下端面设置去料槽，保证基片在生产或使用过程中的工作强度，提升静刀片的工作性能的同时，还能利用去料槽来减少切割齿的厚度，利用较薄的切割齿来提升毛发的修剪效果。其次，去料槽还能使刀齿组中各切割齿的齿尖上端面和/或下端面形成齿凸，在使用时就能利用齿凸对皮肤起到防护作用，避免各切割齿齿尖过于锋利而划伤皮肤，提升静刀片的使用安全性，并且当静刀片贴合皮肤时，刀齿组中各切割齿齿尖处的齿凸还能起到梳子的作用，刺激头部神经，加速头部皮肤血液循环和血氧供应，从而产生较为舒适的肤感，提升静刀片的使用舒适度。
附图说明
图1为本发明实施例一种静刀片的正视图；
图2为本发明实施例一种静刀片的立体图；
图3为图1中A-A处剖视结构图；
图4为本发明实施例一种静刀片的侧视图；
图5为本发明实施例一种静刀片的第二实施例剖视结构图；
图6为本发明实施例一种静刀片的第三实施例剖视结构图；
图7为本发明实施例一种静刀片的制造方法的工艺流程图；
图8为本发明实施例中冲压成型步骤的变化图。
具体实施方式
下面结合附图对本发明实施方式作进一步说明：
如图1-6所示，本发明为一种静刀片，包括基片1，在基片1的至少一侧边缘处设有若干个切割齿21组成的刀齿组2，在基片1的上端面和/或下端面设有去料槽3使刀齿组2中各切割齿厚度T3分别小于基片厚度T2，并且在刀齿组2中各切割齿21的齿尖处上端面和/或下端面形成齿凸4。在基片1的上端面和/或下端面利用机械加工方式去除刀齿组2中各切割齿21上端面和/或下端面的材料形成去料槽3，这样不仅可保证基片1在生产或使用过程中的工作强度，提升静刀片的工作性能；同时，还能利用去料槽3来减少切割齿21的厚度，在静刀片使用过程中就能通过较薄的切割齿21来提升毛发的修剪效果。其次，利用去料槽3使刀齿组2中各切割齿21的齿尖上端面和/或下端面形成齿凸4，在使用时就能利用齿凸4对皮肤起到防护作用，避免各切割齿21齿尖过于锋利而划伤皮肤，提升静刀片的使用安全性，并且当静刀片贴合皮肤时，刀齿组2中各切割齿21齿尖处的齿凸4还能起到梳子的作用，刺激头部神经，加速头部皮肤血液循环和血氧供应，从而产生较为舒适的肤感，提升静刀片的使用舒适度。
所述机械加工方式包括但不限于磨床、数控加工中心、铣床、冲床、车床、粉末冶金成型设备将基片1表面形成去料槽3实现各切割齿厚度T3不同于基片厚度T2来提升毛发修剪效果。实际生产过程中，基片1外表面的去料槽3是通过冲压工艺一体成型，基片1内表面的去料槽3是通过磨削来减少刀齿组2中各切割齿21的厚度来实现的。当然，也可通过其它 设备来实现，但采用冲压加磨床加工方式易于实现而且生产效益高，因此，通过冲压和磨床加工方式为优选实施方式。
为方便齿凸4的加工制造，提升静刀片的生产效益，所述齿凸高度T1小于或等于基片厚度T2。由于齿凸4只起到预防刺伤皮肤和刺激皮肤神经的作用，只要其突出于各切割齿21的上端面和/或下端面即可，因此，将各切割齿21齿尖处上端面和/或下端面的齿凸高度T1设置小于或等于基片厚度T2，在生产加工时，不仅能降低材料成本，而且齿凸4可在冲压和磨削工艺中一体成型，降低齿凸4的生产难度，提升静刀片的生产效益。当然，也可将齿凸高度T1设置大于基片厚度T2，但相应的会增加基片厚度T2提高材料成本或提升齿凸4的加工难度，因此，本实施例的实施方式为优选实施方式。
为提升静刀片的使用安全性的使用肤感，所述的齿凸4包括上齿凸41及下齿凸42并相应的设置在各切割齿21的齿尖上端面和下端面，上齿凸41和下齿凸42与切割齿21的接合处分别圆滑过渡。在刀齿组2中各切割齿21齿尖的上端面和下端面分别设置对应的上齿凸41和下齿凸42，使用过程中，当静刀片与皮肤接触时，上齿凸41可接触皮肤并在毛发修剪时可刺激皮肤神经，起到梳子的作用，加速皮肤血液循环和血氧供应，从而使皮肤产生较为舒适的肤感，提升静刀片的使用舒适度。而下齿凸42不仅能起到防止各切割齿21齿尖剌伤皮肤，提升静刀片的使用安全性，同时，还可防止动刀片沿静刀片往复摆动时动刀片上的切割齿21割伤皮肤，提升剃毛器的使用安全性。当然，上齿凸41和下齿凸42可选其一进行设置在切割齿21的齿尖处，但只设置其中一个会相应的降低静刀片的功能，因此，在刀齿组2中各切割齿21齿尖上端面和下端面分别设置上齿凸41和下齿凸42为优选实施方式。
实际生产过程中，上齿凸41的形成是通过冲压工艺使基片1外表面形成向下凹陷的去料槽3，控制去料槽3的边部与基片1边部的距离，然后利用磨床的切齿砂轮对基片1设置去料槽3的一侧进行切割，这样就可使去料槽3中形成若干个带上齿凸41的切割齿21。如各切割齿21的齿尖处不需要设置上齿凸41，则可将去料槽3的外侧边部与基片1的边部重叠或置于基片1的边部外使基片1外表面形成开放式向下凹陷的去料槽3，在 后续的磨床切齿时，去料槽3中各切割齿21的齿尖处就不会有上齿凸41。下齿凸42的形成是对沿基片1外表面向下凹陷的去料槽3底部进行磨削，通过控制磨削砂轮的边部与基片1内表面边部之间的距离来形成下齿凸42。而如果不需要下齿凸42，则可通过控制磨削砂轮覆盖基片1的内表面边部即可。上齿凸41和下齿凸42可同时设置，也可只设置其中一个，具体可根据用户需求而定。
为提升刀齿组2中各切割齿21的毛发修剪性能，从各切割齿21的齿尖投影方向看，上齿凸宽度T6小于下齿凸宽度T7，使上齿凸41和下齿凸42的投影形状呈上窄下宽的锥形，这样不仅能方便切齿砂轮的切齿作业，提高静刀片的生产效益；而且，还可通过控制上齿凸41与下齿凸42的宽度比来调节切割齿21两侧刀刃的锋利度，保证刀齿组2中各切割齿21的毛发修剪性能。上齿凸41和下齿凸42的宽度比越小，切割齿21两侧刀刃的锋利度就越高。反之，上齿凸41和下齿凸42的宽度比越大，则切割齿21两侧刀刃的锋利度就越低，具体设置可根据实际需求或用户要求而定。
为提升静刀片在使用时与皮肤的贴合度，从基片1两端的任一端投影方向看，基片1的外表面为弧形面，将基片1设为弧形状，刀齿组2处于弧形状的基片1一端，使用时，弧形状的基片1就能提升静刀片与皮肤的贴合度，提高毛发的修剪效益，并且还可提升刀头或剃毛工具的整体美观。当然，基片1也可采用水平状，但由于水平状的静刀片，在使用时，静刀片与皮肤的贴合度相对较差，因此，采用弧形状的基片1为优选实施方式。
为提升静刀片的毛发剃除效果，刀齿组2中各切割齿厚度T3小于基片厚度T2并大于或等于0.08mm。基片厚度T2在0.3mm～2mm之间，实际使用中，会根据不同用途进行更改。比如用于剃须领域，基片厚度T2优选在0.35～0.5mm之间。用于理发领域，静刀片的基片厚度T2则可相应的加大，基本都在0.5mm以上，具体选择可根据静刀片的结构来决定。通常情况下用于剃须领域的静刀片的基片厚度T2优选0.35mm以上片材来加工，在保证静刀片工作强度的同时，还能最大程度的降低生产成本。理论上刀齿组2中各切割齿21的厚度越薄，静刀片的毛发剃除效果就越好。而为避免刀齿组2中各切割齿21扭曲变形或断裂，影响毛发的剃除，刀齿组2中各切割齿厚度T3也可根据基片1的硬度来定，例如：
当基片1的硬度在HRC52～HRC60之间时，刀齿组2厚度(也可视为各切割齿厚度T3)优选为0.13mm±0.03mm。这样就能避免毛发在进入切割齿21相邻的导毛槽时导致切割齿21发生扭曲变形、崩裂或崩断，保证刀齿组2中各切割齿21工作稳定性，提升毛发修剪效果。
当基片1的硬度小于HRC52时，基片1的韧性有所提高，刀齿组2厚度则可设置在0.10mm或以下，这样就能防止刀齿组2中各切割齿21发生崩裂或崩断。
当基片1的硬度大于HRC60时，基片1的韧性相应降低，但其脆性相应的提高，为防止刀齿组2中各切割齿21发生崩裂或崩断，则可相应的加大刀齿组2中各切割齿厚度T3，比如设置刀齿组2中各切割齿厚度T3为基片厚度T2的二分之一、三分之二或四分之三来保证剃毛刀片的使用性能。刀齿组2中各切割齿21的具体厚度可根据基片1的材质不同、硬度不同进行灵活设置，本实施例不作进一步限制。
为提升静刀片在毛发修剪时与皮肤的贴合度，提升毛发修剪时皮肤的舒适感，去料槽深度T4小于基片厚度T2,将去料槽3沿基片1外表面向下凹陷深度设置小于基片厚度T2，在对刀齿组2内表面进行磨削形成切割工作面5时，不仅最大程度的减小了刀齿组2中各切割齿厚度T3，还能利用去料槽3沿基片1外表面向下凹陷所形成的段差面6来保证刀齿组2中各切割齿21的工作强度，提升静刀片的毛发修剪性能和修剪效果。其次，将去料槽深度T4设置小于基片厚度T2，在当刀齿组2中各切割齿21的外表面(即去料槽3的槽底面)与皮肤接触时，基片1外表面不会对皮肤产生推挤感，从而可有效提升剃毛刀片与皮肤的贴合度和使用舒适感。
由于刀齿组2中各切割齿21的厚度越薄，刀齿组2中各切割齿21内表面的磨削量就越大。反之，当刀齿组2厚度越厚时，刀齿组2中各切割齿21内表面的磨削量就越少。因此，在实际生产过程中，去料槽深度T4(即刀齿组2沿基片1外表面的凹陷深度)也可根据刀齿组2中各切割齿21的实际厚度而定，例如：
要求刀齿组2中各切割齿厚度T3小于0.10mm时，刀齿组2中各切割齿21内表面的磨削量就相对较大，为保证刀齿组2中各切割齿21的工作强度，则可适当的减少去料槽深度T4(最佳去料槽深度T4小于基片厚度 T2的一半)。当对刀齿组2内表面(也可视为去料槽3内表面)进行磨削时，去料槽3与基片1之间的段差面6会受到较少的磨削，这样就能利用段差面6对刀齿组2中各切割齿21的齿根起到支撑作用，保证刀齿组2中各切割齿21的工作强度。
而当要求刀齿组2中各切割齿21的厚度大于0.20mm时，刀齿组2中各切割齿21内表面的磨削量就相对较小。此时，可适当的加大去料槽3沿基片1外表面的凹陷深度，如去料槽深度T4大于基片厚度T2或大于基片厚度T2的三分之二、二分之一等，同样可保证刀齿组2中各切割齿21的工作强度。但也相应的增加了去料槽3底平面(也可视为刀齿组2中各切割齿21的外表面)与基片1外表面的高度差。在当刀齿组2外表面接触到皮肤时，基片1的外表面会对皮肤产生一种推挤力，会影响刀齿组2与皮肤的贴合度，皮肤接触感相对较差。因此，去料槽3沿基片1向下凹陷的去料槽深度T4小于基片厚度T2为优选实施方式。
由于刀齿组2是在去料槽3的基础上的进行切齿作业而形成的，为提升静刀片的毛发修剪效益，在基片1相对的两侧边缘处分别设有去料槽3，并对各去料槽3一侧进行切齿作业使基片1两侧分别形成刀齿组2。由于刀齿组2中各切割齿厚度T3比基片厚度T2薄，为防止静刀片使用时设置刀齿组2的两侧发生扭曲变形，刀齿组2的长度(也可视为去料槽3长度)小于基片1的长度使刀齿组2两端距基片1两端边缘距离T5在3mm～10mm，优选为5mm，在使用时，利用边缘距离T5可有效对基片1两侧的刀齿组2起到支撑作用，防止在使用时刀齿组2中各切割齿21发生扭曲变形，保证静刀片的整体工作强度和工作稳定性。如在基片1两端不预留3mm～10mm的边缘距离T5，在基片1两侧全部设置切割齿21，这样各切割齿21只能利用齿根与基片1相连，使用时各切割齿21就极易发生扭曲变形，严重影响静刀片的使用性能和工作稳定性。当然，基片1两端边部的边缘距离T5也可设置得更大，比如预留15mm、20mm或更大，但边缘距离T5加大会相应的减少刀齿组2中切割齿21的数量，降低剃毛效益。因此，在基片1两端边部边缘距离T5在3mm～10mm为最优实施方式，在保证刀齿组2各切割齿21工作强度的同时，还无需增加基片1的厚度来保证静刀片的工作强度，降低静刀片的材料成本。
在生产加工过程中，为方便控制刀齿组2中各切割齿厚度T3小于基片厚度T2，提升静刀片的毛发修剪效益，所述的去料槽3包括上去料槽31和下去料槽32，上去料槽31设置在基片1的外表面使刀齿组2中各切割齿21的齿尖处上端面形成上齿凸41，上去料槽31是通过冲压工艺与基片1一体成型的，上去料槽31在成型过程中，其外表面低于基片1外表面，内表面突出于基片1的内表面，然后通过切齿砂轮对基片1一侧进行切齿作业，使上去料槽31形成若干个切割齿21组成的刀齿组2，此时，上去料槽31的外表面也就构成各切割齿21的外表面。在实际生产过程中，可以通过控制上去料槽31的外侧边与基片1边部的距离来控制上齿凸41的宽度甚至是使各切割齿21上端面不形成上齿凸41，此时，只需将上去料槽31的外侧边与基片1的边部重叠或超过基片1边部，这样上去料槽31成型在基片1外表面时形成一侧为开放式的凹槽。具体需不需要预留上齿凸41或上齿凸41的宽度预留多少，只要调整上去料槽31的冲压模具内的镶件位置即可实现。下去料槽32设置在基片1内表面使刀齿组2中各切割齿厚度T3小于基片厚度T2并在各切割齿21的齿尖处下端面形成下齿凸42。当上去料槽31冲压成型后，上去料槽31的内表面突出于基片1的内表面，此时，再利用磨削设备对突出于基片1内表面的上去料槽31内表面进行磨削作业形成切割工作面5的同时，还能减小各切割齿厚度T3，提升毛发修剪效果。而在对上去料槽31底部进行磨削作业时，可通过利用磨削砂轮与基片1侧壁之间的距离使各切割齿21的下端面形成下齿凸42。对于各切割齿21下端面是否预留下齿凸42或下齿凸42的宽度预留多少，只需调整磨削设备的砂轮与基片1侧壁之间的距离即可实现。
如图7所示，为方便静刀片的生产加工，本申请还提出一种静刀片的制造方法，包括有以下步骤：
S1.材料选取：根据用户或设计要求选取相应厚度并且可进行热处理的金属材料，金属材料可以为马氏体不锈钢片材或料材，而且，硬度要求在HV160～HV220之间。由于静刀片需要与皮肤接触，而皮肤会分泌出一些油脂或汗液以及静刀片在毛发修剪完成后的水洗，但不锈钢具有较好的耐腐蚀性，可以有效的防止静刀片受油脂或汗液的侵蚀或水洗时的锈蚀，保证静刀片的使用安全性和卫生性能。当然，也可采用其它金属材料，比如， 普通的铁片、铜片等，但普通铁片或铜片耐腐蚀性能较差，因此，采用不锈钢材料为优选实施方案。而将马氏体不锈钢的硬度限定在HV160～HV220之间，主要是考虑到后续的冲压成型，如马氏体不锈钢原料的维氏硬度较低，低于HV160，在冲压成型后，极易发生二次变形；而如维氏硬度较高，高于HV220，则在冲压成型时，易使静刀片坯料产生裂纹，因此，将马氏体不锈钢原料的硬度限定在HV160～HV220之间为优选实施方式。
S2.冲压成型：将不锈钢片材或料带送入冲压模具内并通过冲压设备冲压形成符合静刀片尺寸要求，且至少一侧边缘处具有去料槽3的静刀片坯料。如图8所示，实际生产过程中，冲压模具为级进模，通过冲定位孔、切边、预成型、整形、修边及切断工位冲压后使金属片材或料带两侧分别具有上去料槽31的静刀片坯料。
为清除冲压过程中静刀片坯料表面的油污，防止油污在热处理时使静刀片表面形成油膜层，影响静刀片外观，因而，在对静刀片坯料进行热处理前需要对静刀片坯料进行清洗，并且进行烘干处理，当然，也可进行风干，但风干时间较长，严重影响静刀片的生产进度，因而，对清洗过后的静刀片坯料进行烘干为最佳实施方式。
SA清洗烘干：清洗设备为三槽式超声波清洗机，在清洗机的第一清洗槽内按60升～100升纯净水中加入0.5kg～1.5kg的除油粉和0.5kg～1.5kg金属清洗剂混合均匀，然后加热至55℃～80℃，清洗150秒～200秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入风箱烘干机内，烘干温度40℃～80℃，烘干时间30～90分钟后保持静刀片坯料表面的干净及干燥。
S3.热处理：将清洁烘干后的静刀片坯料送入加热装置内进行淬火处理，加热装置为真空热处理炉，静刀片坯料送入真空热处理炉内,炉内温度加热至1000℃～1100℃保持40～100分钟，然后输入氮气在40分钟～80分钟内将静刀片坯料冷却至常温，从而将静刀片坯料的硬度提升至HRC52～HRC60之间。采用真空热处理炉可有效防止静刀片坯料在热处理过程中发生氧化、脱碳、增碳现象，可以使静刀片表面保持较好的光亮表面，提升静刀片坯料的硬度。当然，从使用功能看，也可使用普通加热炉 来提高静刀片坯料硬度，但普通加热炉使静刀片坯料表面与氧气发生还原反应，不仅使静刀片坯料表面外观较差，而且，静刀片坯料表面产生的氧化皮会影响静刀片坯料的硬度，因此，采用真空热处理工艺为优选实施方式。通过真空热处理将静刀片坯料硬度提升至HRC52～HRC60之间，主要考虑到后续的切齿作业，防止静刀片坯料在切齿作业时发生扭曲变形，提升切齿工序的生产效率和成品率，降低生产成本。
S4.切齿：利用切齿设备对静刀片坯料边缘处的去料槽3一侧进行切齿作业，使去料槽3一侧形成若干个间隔设置的切割齿21的静刀片半成品；切齿设备为磨床，利用磨床的切齿砂轮对静刀片坯料边缘一侧进行切齿作业形成静刀片半成品，切齿深度接近去料槽3内侧侧壁。在切齿作业时，切齿砂轮目数在220～260目之间，保证各切割齿21两侧侧壁的光滑度，而切齿砂轮切齿作业的线速要求30～55米/分，优选35米/分。
S5.抛光：在冲压成型和切齿作业形成静刀片半成品后，静刀片各边部较为锋利，在使用时就易划伤皮肤，因此，通过抛光设备对静刀片半成品各边缘进行圆滑倒角处理并对静刀片半成品外表面进行抛光处理使静刀片半成品表面较为光亮，提升静刀片半成品整体外观。为提升倒角和抛光效果，抛光设备为滚筒抛光机，滚抛作业时滚筒转速在40～90转/分,优选为55转/分，滚抛料为6*6mm～10*10mm的高铝瓷，优选为6*6mm高铝瓷，滚抛料也可使用相同尺寸的棕刚玉代替。
S6.磨削：对各切割齿21的下端面(也可视为去料槽3底端面)进行磨削作业构成下去料槽32，并使基片1内表面形成切割工作面5最终形成静刀片成品。在磨削时，磨削砂轮目数在100～180目之间，磨削时砂轮线速在32～36米/分，使切割工作面5的平面度要求不大于0.02，粗糙度不大于0.6。
S7清洗烘干：清洗设备为三槽式超声波清洗机，在清洗机的第一清洗槽内按60升～100升纯净水中加入0.5kg～1.5kg的除油粉和0.5kg～1.5kg金属清洗剂混合均匀，然后加热至55℃～80℃，清洗150秒～200秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入风箱烘干机内，烘干温度40℃～ 80℃，烘干时间30～90分钟后保持静刀片成品表面的干净及干燥，然后进行检验并包装，完成整个静刀片的生产流程。
实施例1
将硬度在HV200的马氏体不锈钢料带卷放入自动送料架上，料带一端送入级进模中，通过级进模的冲定位孔、切边、预成型、整形、修边及切断工位后形成静刀片坯料；将静刀片坯料放入三槽式超声波清洗机，在清洗机的第一清洗槽内按80升纯净水中加入1kg的除油粉和1kg金属清洗剂混合均匀，然后加热至65℃，清洗180秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至35℃，清洗120秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃，清洗150秒后捞出。然后，再放入风箱烘干机内，烘干温度60℃，烘干时间45分钟后取出并送入真空热处理炉内,炉内温度加热至1020℃保持75分钟后停止加热，并向真空加热炉内输入氮气冷却，静置65分钟将静刀片坯料冷却至常温取出并送至磨床工序进行切齿，选用220目的切齿砂轮，调节切齿砂轮线速度至35米/分对静刀片坯料两侧进行切割，切割深度接近去料槽3内侧侧壁即可。将切完齿的静刀片半成品放入滚筒抛光机内，调整滚筒转速至55转/分,并将6*6mm高铝瓷滚抛料放进滚筒中，滚抛180分钟后取出并再次送入磨床工序，选用目数在180目的砂轮，调节砂轮线速至35米/分对静刀片内表面进行磨削形成切割工作面5和下齿凸42并最终形成成品。最后，把静刀片成品放进三槽式超声波清洗机，在清洗机的第一清洗槽内按100升纯净水中加入0.5kg的除油粉和1kg金属清洗剂混合均匀，然后加热至55℃，清洗150秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃，清洗90秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃，清洗120秒后捞出,进行检验并包装完成静刀片的生产。
实施例2
将硬度在HV180的马氏体不锈钢料带卷放入自动送料架上，料带一端送入级进模中，通过级进模的冲定位孔、切边、预成型、整形、修边及切断工位后形成静刀片坯料；将静刀片坯料放入三槽式超声波清洗机，在清洗机的第一清洗槽内按100升纯净水中加入1.5kg的除油粉和1.5kg金属清洗剂混合均匀，然后加热至80℃，清洗150秒后放入第二清洗槽；在第二 清洗槽中加入纯净水并加热至30℃，清洗100秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃，清洗100秒后捞出。然后，再放入风箱烘干机内，烘干温度80℃，烘干时间35分钟后取出并送入真空热处理炉内,炉内温度加热至1060℃保持60分钟后停止加热，并向真空加热炉内输入氮气冷却，静置80分钟将静刀片坯料冷却至常温取出并送至磨床工序进行切齿，选用240目的切齿砂轮，调节切齿砂轮线速度至30米/分对静刀片坯料两侧进行切割，切割深度接近去料槽3内侧侧壁即可。将切完齿的静刀片半成品放入滚筒抛光机内，调整滚筒转速至70转/分,并将8*8mm高铝瓷滚抛料放进滚筒中，滚抛200分钟后取出并再次送入磨床工序，选用目数在160目的砂轮，调节砂轮线速至32米/分对静刀片内表面进行磨削形成切割工作面5和下齿凸42并最终形成成品。最后，把静刀片成品放进三槽式超声波清洗机，在清洗机的第一清洗槽内按80升纯净水中加入0.8kg的除油粉和0.6kg金属清洗剂混合均匀，然后加热至60℃，清洗130秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至32℃，清洗100秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至35℃，清洗110秒后捞出,进行检验并包装完成静刀片的生产。
实施例3
将硬度在HV220的马氏体不锈钢料带卷放入自动送料架上，料带一端送入级进模中，通过级进模的冲定位孔、切边、预成型、整形、修边及切断工位后形成静刀片坯料；将静刀片坯料放入三槽式超声波清洗机，在清洗机的第一清洗槽内按60升纯净水中加入0.8kg的除油粉和1.2kg金属清洗剂混合均匀，然后加热至60℃，清洗150秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃，清洗100秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃，清洗140秒后捞出。然后，再放入风箱烘干机内，烘干温度45℃，烘干时间75分钟后取出并送入真空热处理炉内,炉内温度加热至1100℃保持50分钟后停止加热，并向真空加热炉内输入氮气冷却，静置70分钟将静刀片坯料冷却至常温取出并送至磨床工序进行切齿，选用260目的切齿砂轮，调节切齿砂轮线速度至50米/分对静刀片坯料两侧进行切割，切割深度接近去料槽3内侧侧壁即可。将切完齿的静刀片半成品放入滚筒抛光机内，调整滚筒转速至75转/分,并将 10*10mm高铝瓷滚抛料放进滚筒中，滚抛210分钟后取出并再次送入磨床工序，选用目数在180目的砂轮，调节砂轮线速至36米/分对静刀片内表面进行磨削形成切割工作面5和下齿凸42并最终形成成品。最后，把静刀片成品放进三槽式超声波清洗机，在清洗机的第一清洗槽内按100升纯净水中加入1.2kg的除油粉和1.2kg金属清洗剂混合均匀，然后加热至75℃，清洗120秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至35℃，清洗140秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃，清洗130秒后捞出,进行检验并包装完成静刀片的生产。
上述实施例不应视为对本发明的限制，但任何基于本发明的精神所作的改进，都应在本发明的保护范围之内。

Claims (19)

  1. 一种静刀片，包括基片，其特征在于在基片的至少一侧边缘处设有若干个切割齿组成的刀齿组，在基片的上端面和/或下端面设有去料槽使刀齿组中各切割齿厚度分别小于基片厚度，并且在刀齿组中各切割齿的齿尖处上端面和/或下端面形成齿凸。
  2. 根据权利要求1所述的一种静刀片，其特征在于所述齿凸高度小于或等于基片厚度。
  3. 根据权利要求1所述的一种静刀片，其特征在于所述的齿凸包括上齿凸及下齿凸并分别设置在各切割齿的齿尖上端面和下端面，上齿凸和下齿凸与切割齿的接合处分别圆滑过渡。
  4. 根据权利要求3所述的一种静刀片，其特征在于从各切割齿的齿尖投影方向看，上齿凸宽度小于下齿凸宽度。
  5. 根据权利要求1所述的一种静刀片，其特征在于从基片两端的任一端投影方向看，基片的外表面为弧形面。
  6. 根据权利要求1所述的一种静刀片，其特征在于刀齿组中各切割齿厚度小于基片厚度并大于或等于0.08mm。
  7. 根据权利要求1所述的一种静刀片，其特征在于去料槽深度小于基片厚度。
  8. 根据权利要求1所述的一种静刀片，其特征在于在基片相对的两侧边缘处分别设有刀齿组，刀齿组的长度小于基片的长度使刀齿组两端距基片两端边缘距离在3mm～10mm。
  9. 根据权利要求1～8任一项所述的一种静刀片，其特征在于所述的去料槽包括上去料槽和下去料槽，上去料槽设置在基片的外表面使刀齿组中各切割齿的齿尖处上端面形成上齿凸，下去料槽设置在基片内表面使刀齿组中各切割齿厚度小于基片厚度并在各切割齿的齿尖处下端面形成下齿凸。
  10. 根据权利要求1～9所述的一种静刀片的制造方法，其特征在于包括有以下步骤：
    S1.材料选取：根据用户或设计要求选取相应厚度并且可进行热处理的金属材料；
    S2.冲压成型：将金属材料送入冲压模具内并通过冲压设备冲压形成符合静刀片尺寸要求，且至少一侧边缘处具有去料槽的静刀片坯料；
    S3.热处理：将静刀片坯料送入加热装置内进行淬火处理，提升静刀片坯料的硬度；
    S4.切齿：利用切齿设备对静刀片坯料边缘处的去料槽一侧进行切齿作业，使去料槽一侧形成若干个间隔设置的切割齿的静刀片半成品；
    S5.抛光：通过抛光设备对静刀片半成品各边缘进行圆滑倒角处理并对静刀片半成品外表面进行抛光处理；
    S6.磨削：对各切割齿的下端面进行磨削作业形成切割工作面并最终形成静刀片成品。
  11. 根据权利要求10所述的一种静刀片的制造方法，其特征在于在S1步骤中选用马氏体不锈钢原料，且马氏体不锈钢的硬度要求在HV160～HV220之间。
  12. 根据权利要求10所述的一种静刀片的制造方法，其特征在于在S2步骤之后S3步骤之前还设有SA清洗烘干步骤，清洗烘干步骤通过清洗设备清除静刀片坯料表面的油污并通过烘干设备干燥静刀片坯料表面。
  13. 根据权利要求12所述的一种静刀片的制造方法，其特征在于所述的清洗设备为三槽式超声波清洗机，在清洗机的第一清洗槽内按60升～100升纯净水中加入0.5kg～1.5kg的除油粉和0.5kg～1.5kg金属清洗剂混合均匀，然后加热至55℃～80℃，清洗150秒～200秒后放入第二清洗槽；在第二清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入第三清洗槽；在第三清洗槽中加入纯净水并加热至30℃～35℃，清洗90秒～150秒再放入风箱烘干机内，烘干温度40℃～80℃，烘干时间30～90分钟。
  14. 根据权利要求10所述的一种静刀片的制造方法，其特征在于在S3步骤中通过加热装置对静刀片坯料进行淬火处理将静刀片坯料硬度提升至HRC52～HRC60之间。
  15. 根据权利要求10所述的一种静刀片的制造方法，其特征在于S3步骤中加热装置为真空热处理炉，静刀片坯料送入真空热处理炉内,炉内温度加热至1000℃～1100℃保持40～100分钟，然后输入氮气在40分钟～ 80分钟内将静刀片坯料冷却至常温。
  16. 根据权利要求10所述的一种静刀片的制造方法，其特征在于S4步骤中切齿设备为磨床，切齿砂轮目数在220～260目之间，切齿砂轮切齿作业的线速要求30～55米/分。
  17. 根据权利要求10所述的一种静刀片的制造方法，其特征在于S5步骤中抛光设备为滚筒抛光机，滚抛作业时滚筒转速在40～90转/分,滚抛料为6*6mm～10*10mm的棕刚玉。
  18. 根据权利要求10所述的一种静刀片的制造方法，其特征在于S6步骤中通过磨床对各切割齿下端面进行磨削作业使静刀片半成品内表面形成切割工作面，切割工作面的平面度不大于0.02，粗糙度不大于0.6；磨削砂轮目数在100～180目之间，磨削时砂轮线速在32～36米/分。
  19. 根据权利要求11～18中任一项所述的一种静刀片的制造方法，其特征在于在S6步骤后还设有S7清洗烘干步骤，S7清洗烘干步骤与SA清洗烘干步骤相同。
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