CN106350985A - Method for cutting glasses cloth by utilizing tooth-shaped cloth cutter - Google Patents
Method for cutting glasses cloth by utilizing tooth-shaped cloth cutter Download PDFInfo
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- CN106350985A CN106350985A CN201610899317.2A CN201610899317A CN106350985A CN 106350985 A CN106350985 A CN 106350985A CN 201610899317 A CN201610899317 A CN 201610899317A CN 106350985 A CN106350985 A CN 106350985A
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- Prior art keywords
- tooth
- profile
- rag knife
- rough forging
- temperature
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C13/00—Assembling; Repairing; Cleaning
- G02C13/006—Devices specially adapted for cleaning spectacles frame or lenses
Abstract
The invention discloses a method for cutting glasses cloth by utilizing a tooth-shaped cloth cutter, which belongs to the technical field of mechanical blades. The tooth-shaped cloth cutter for cutting the glasses cloth is processed in the steps of (1) preparing raw materials; (2) annealing at the temperature of 830 to 860 DEG C, cooling in a holding furnace to 720 to 740 DEG C, keeping the temperature, then cooling in the furnace to 500 to 530 DEG C, taking out of the furnace, and performing air cooling; (3) performing rough machining on workblank; (4) annealing the cloth cutter again before quenching, heating to 600 to 630 DEG C, keeping the temperature, then cooling in the furnace to 500 DEG C, taking out of the furnace, and performing air cooling; quenching: heating the cloth cutter to 620 to 660 DEG C for the first time, keeping the temperature for 0.5 to 1 hour, then preheating for the second time, heating to 820 to 860 DEG C, then keeping the temperature for 0.5 to 1.5 hours, finally, heating to 1000 to 1050 DEG C, taking out of the furnace, and performing oil quenching; tempering the cloth cutter at the temperature of 550 to 560 DEG C for the first time, keeping the temperature, then tempering at the temperature of 560 to 570 DEG C for the second time, keeping the temperature, then cooling, and taking out of the furnace; (5) performing finish machining. Various properties of the tooth-shaped cloth cutter can satisfy the cutting requirements of the glasses cloth, and the appearance quality of the obtained glasses cloth is good.
Description
Technical field
The present invention relates to mechanical bit technical field, more particularly, it relates to a kind of cut glasses using profile of tooth rag knife
The method of cloth.
Background technology
Glass cleaning cloth is the indispensable personal effects of wears glasses person, particularly with the glasses of high-quality eyeglass, in order to full
Foot should eyeglass wiping effect be good, do not make the requirement that eyeglass sustains damage again, the quality of Glass cleaning cloth is required just higher；Another
Aspect, for the glasses of those high-quality eyeglasses, it is also proposed higher and higher wanting to the outward appearance of provisioned Glass cleaning cloth, feel
Ask.
The shape of Glass cleaning cloth is mostly square, and its four weekly assembly setting tooth-shape structure.At present, make the production firm of Glass cleaning cloth more
It is punched out Glass cleaning cloth one by one with square dies, ensure that, using this kind of punching mode, the Glass cleaning cloth regular shape cutting out,
Will not deform, and because the surrounding stress of Glass cleaning cloth in blanking process is uniform, its tooth-shape structure cut quality
Higher, ensure that the presentation quality of Glass cleaning cloth.But it equally exists many defects, the most importantly suitability of square dies
Poor, the Glass cleaning cloth of every kind of size will be equipped with the square dies of specific model, and the Glass cleaning cloth such as producing 10 kinds of sizes must have
10 kinds of model square dies, if 100 kinds, 1000 kinds of size Glass cleaning cloths, then can bring huge die sinking expense to manufacturer
And recruitment cost；On the other hand, go down to determine a Glass cleaning cloth using square Dies ' Blanking one knife, and two neighboring glasses
Waste material is inherently produced between cloth；So, when both wasting cloth, and taking a lot of work very much.
For the problems referred to above, Ye You manufacturer expects realizing the cutting of Glass cleaning cloth, so meeting using toothed cutting knife
The problems such as solution die sinking and cloth waste, but Glass cleaning cloth is a kind of cloth with certain retractility, using cutting knife once existing
During cutting cloth, change is produced to the pulling force that cloth applies, then cloth will produce different deformation, after causing finally to cut
Cloth is not the square of rule, and accuracy to size is low；And the tooth-shape structure of Glass cleaning cloth surrounding is to performances such as the sharpness of cutter tooth
Also have high requirements, cutter tooth performance does not reach requirement, will result in that Glass cleaning cloth otch is irregular, edge out-of-flatness, have bound edge etc.
The occurrence of.
Through retrieval, cutting or have more technical scheme open with regard to cloth, such as China Patent No.
201410387968.4, patent name is: a kind of automatic fabric cutter and its operational approach；Chinese Patent Application No.
200810026211.7, patent name is: a kind of slitting cutting processing method of cloth；Above-mentioned patent all proposes from different perspectives
Improve and cut efficiency and the method cutting quality.But such scheme is not particularly suited for cutting of Glass cleaning cloth, and how to solve
The Glass cleaning cloth of literary composition analysis the problems of cuts, and does not retrieve effective solution.
China Patent No. zl201310396539.9, authorized announcement date: on August 5th, 2015, invention and created name is:
Plant the method manufacturing overall long blade；In this application case, the procedure of processing of long blade is: 1) raw material of overall long blade prepares:
Rough forging is carried out with pulling forging, its forging ratio is 1: 3；2) annealing of rough forging: be warming up to 860～870 DEG C, protect
Temperature 4～6 hours, then air cooling to 350～400 DEG C, is warmed up to 700-720 DEG C after air cooling again, is incubated 2～3 hours；3) forge hair
The roughing of base: line and drilling machine punching, during line, pitch-row is controlled to l+0.2mm, and wherein l is the pitch-row of overall long blade finished product
Require；4) heat treatment of overall long blade: be increased to 1020～1040 DEG C after three preheatings, be incubated 50～55 minutes, after insulation
Come out of the stove oil quenching；5) deep processing of overall long blade.The overall long blade that this application case manufacture obtains ensure that linearity, perpendicularity
And wearability and shock resistance.But what this application case core solved is the micro-deformation problem in heat treatment process, and its
It is not related to tooth Profile Machining, be therefore not particularly suited for cutting of Glass cleaning cloth.
Always well known, spectacles industry is the very fierce industry of a market competition, how de- clever in cruel competition
And go out it is necessary to keep on improving in some little details, and how cutting cost declining in operation, saving working hour and carrying in Glass cleaning cloth
Height cuts quality, becomes a difficult problem for puzzlement manufacturer, is badly in need of a kind of effective solution.
Content of the invention
1. invent technical problem to be solved
It is an object of the invention to overcome Glass cleaning cloth in prior art cut die sinking costly, cloth wastes serious and cuts out
Cut the low problem of efficiency, there is provided a kind of method that utilization profile of tooth rag knife cuts Glass cleaning cloth；The simple production process of the present invention,
What the profile of tooth rag knife properties preparing disclosure satisfy that Glass cleaning cloth cuts requirement, and the Glass cleaning cloth presentation quality obtaining is good.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
The method that a kind of utilization profile of tooth rag knife of the present invention cuts Glass cleaning cloth, the steps include:
1) the glasses cloth that conveyer device traction machines runs；
2) hold down gag clamps and compresses glasses cloth；
3) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on y direction, glasses cloth is carried out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
4) conveyer device continues traction glasses cloth operation distance to a declared goal, and on y direction, profile of tooth rag knife is again along vertically side
To whereabouts, glasses cloth is cut；
5) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on x direction, glasses cloth is carried out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
6) on x direction, profile of tooth rag knife runs distance to a declared goal in the y-direction, vertically falls again, to glasses cloth
Cut, so far the operation that cuts of single Glass cleaning cloth completes.
Further, the course of processing of described profile of tooth rag knife is:
Step one, raw material prepare: profile of tooth rag knife adopts rough forging to be obtained；
Step 2, the annealing of rough forging: by the rough forging in step one through annealing, annealing temperature is
830-860 DEG C, after insulation a period of time, stove is cooled to 720-740 DEG C, and after insulation a period of time, furnace cooling goes out to 500-530 DEG C again
Stove air cooling；
Step 3, the roughing of rough forging: after annealing, rough forging is made the work leaving allowance for finish
Part, its roughing technique is:
(1) levelling machine corrects plane and the side of rough forging；
(2) plane and the side of rough forging roughly ground by grinding machine；
(3) required profile of tooth is cut out in wire cutting；
Step 4, heat treatment:
(1) anneal: anneal again before quenching through step 3 rough machined profile of tooth rag knife, be heated to 600-630 DEG C, protect
After temperature a period of time, furnace cooling is to 500 DEG C of air coolings of coming out of the stove；
(2) quench: profile of tooth rag knife needs to carry out secondary preheating: be warmed up to 620-660 DEG C for the first time, 0.5-1 is little for insulation
When after carry out second preheating, be warming up to 820-860 DEG C, then be incubated 0.5-1.5 hour, be finally warmed up to 1000-1050 DEG C, go out
Furnace oil is quenched；
(3) it is tempered: the profile of tooth rag knife of quenched process is carried out being tempered for the first time at a temperature of 550-560 DEG C, tempering
Temperature retention time is 2 hours, then carries out second tempering at a temperature of 560-570 DEG C, and tempering insulation time is 2 hours, cooling
Hardness 54-56 of coming out of the stove degree；
Step 5, the polish of profile of tooth rag knife:
(1) plane of fine grinding profile of tooth rag knife and side；
(2) cnc gear grinding machines are adopted to refine cutter tooth；
(3) remove the burr of crown it is ensured that the sharpness of the edge of a knife and linearity.
Further, the rough forging that step one adopts includes the component of following mass percent: c 1.45%-
1.53%；Si 0.25%-0.3%；Mn 0.4%-0.45%；Cr 11.00%-14.2%；Mo 0.85%-1.00%；v
0.31%-0.4%；P≤0.025%；S≤0.01%, balance of fe and inevitable impurity.
Further, in the annealing process of step 2 and step 4, the dimensional parameters phase of temperature retention time and rough forging
Close, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor；xpFor the length of rough forging, mm；ypFor rough forging
Width, mm；zpFor the thickness of rough forging, mm.
Further, the span of adjustment factor k is 0.2～0.6.
Further, in the quenching technical of step 4, the heating rate that preheats twice:
V=(t-t0) (crwt+mowt)
In above formula, v is heating rate, DEG C/h；T be holding temperature, unit be DEG C, t0 be initial temperature, unit be DEG C,
crwtFor the percent mass ratio of cr in rough forging, mowtPercent mass ratio for mo in rough forging.
Further, it is warmed up to 630 DEG C in the quenching process of step 4 for the first time, insulation carried out second after 0.5 hour
Secondary preheating, is warming up to 835 DEG C, then is incubated 1.5 hours, is finally warmed up to 1050 DEG C, oil quenching of coming out of the stove；By quenched process during tempering
Profile of tooth rag knife carry out being tempered for the first time at a temperature of 550 DEG C, tempering insulation time is 2 hours, then at a temperature of 565 DEG C
Carry out second tempering, tempering insulation time is 2 hours.
Further, step 5 surveys edge of a knife sharpness with 3 kilograms, and requires the linearity of the edge of a knife within 0.05mm.
3. beneficial effect
The technical scheme being provided using the present invention, compared with existing known technology, has a following remarkable result:
(1) a kind of processing method of profile of tooth rag knife of the present invention, has carried out science to the temperature retention time in annealing process
Design, it is associated with the dimensional parameters of rough forging, overcome tradition fully rely on technical staff's experience control be incubated when
Between extensive pattern, be easily caused the uneven problem of different heat product quality levels, after annealed technique, inside profile of tooth rag knife
Tissue is more uniform, and crystal structure is more preferable；
(2) processing method of a kind of profile of tooth rag knife of the present invention, in the quenching process of heat treatment, the liter that preheats twice
Warm speed is associated with the percent mass ratio of cr and mo in rough forging, Technology for Heating Processing cooperation rough forging component so that
It is obtained in that excellent wearability and shock resistance, quenching high-temperature heating speed suitably, can make profile of tooth cut after heat treatment
There are enough phosphorus content and alloying element content in cloth knife, so on the one hand increase the wearability of cutter, on the other hand stop brilliant
Grain length is big, prevents overheated exceeded, can further ensure that linearity and the perpendicularity of overall long blade；
(3) processing method of a kind of profile of tooth rag knife of the present invention, Technology for Heating Processing easily operates, and rag knife cutter tooth is organized
It is easily controlled and good stability, reduce strain cracking tendency in heat treatment process for the cutter tooth, there is high tough and high-wearing feature,
Service life is longer, reduces the reconditioning number of times of cutter tooth in operation；
(4) processing method of a kind of profile of tooth rag knife of the present invention, the properties of the profile of tooth rag knife obtaining can be expired
Sufficient Glass cleaning cloth cut requirement, the Glass cleaning cloth otch obtaining is neat, flush edge, no bound edge；And Glass cleaning cloth shape rule after cutting
Then, accuracy to size is high；
(5) method that a kind of utilization profile of tooth rag knife of the present invention cuts Glass cleaning cloth, using profile of tooth rag knife at most 4 knife just
May be done to few one piece of Glass cleaning cloth cuts operation, cuts mode compared to tradition using square dies, saves die sinking
Cost, and greatly reduce the waste of cloth, improve production efficiency, reduce production cost.
Specific embodiment
For further appreciating that present disclosure, with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of processing method of profile of tooth rag knife of the present embodiment, the steps include:
Step one, raw material prepare: profile of tooth rag knife adopts rough forging to be obtained；Rough forging includes following percent mass
The component of ratio: c 1.45%；Si 0.3%；Mn 0.4%；Cr 14.2%；Mo 0.85%；V 0.31%；P 0.025%；s
0.01%, balance of fe and inevitable impurity.
Step 2, the annealing of rough forging: by the rough forging in step one through annealing, annealing temperature is
830 DEG C, insulation a period of time after stove be cooled to 740 DEG C, insulation a period of time after again furnace cooling to 500 DEG C of air coolings of coming out of the stove；Insulation
Time is related to the dimensional parameters of rough forging, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the span of adjustment factor k is 0.2～0.6, its tool
Body value is depended on the circumstances by technical staff, but the rough forging of same size parameter is in principle using unified adjustment factor,
The adjustment factor of different holding stages can be different；xpFor the length of rough forging, mm；ypFor the width of rough forging, mm；zp
For the thickness of rough forging, mm.Length x of rough forgingp, width ypWith thickness zpAccurate measurement must not be sought, existed by technical staff
Scene determines roughly.In the present embodiment, the length of rough forging is 200mm, and width is 50mm, and thickness is 5mm, adjusts system
Number k all takes 0.6.I.e. through annealing, annealing temperature is 830 DEG C to rough forging, and after being incubated about 2.5 hours, stove is cooled to 740 DEG C,
Insulation about 2.5 hours after again furnace cooling to 500 DEG C of air coolings of coming out of the stove.
Step 3, the roughing of rough forging: after annealing, rough forging is made and leaves 0.5mm allowance for finish
Workpiece, its roughing technique is:
(1) levelling machine corrects plane and the side of rough forging；
(2) plane and the side of rough forging roughly ground by grinding machine；
(3) required profile of tooth is cut out in wire cutting.
Step 4, heat treatment:
(1) anneal: anneal again before quenching through step 3 rough machined profile of tooth rag knife, be heated to 630 DEG C, be incubated one
After the section time, furnace cooling is to 500 DEG C of air coolings of coming out of the stove；Similarly, temperature retention time of herein annealing in the present embodiment still with rough forging
Dimensional parameters related, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the value of adjustment factor k is 0.5；xpFor rough forging
Length, mm；ypFor the width of rough forging, mm；zpFor the thickness of rough forging, mm.
The present embodiment has carried out scientific design to the temperature retention time in annealing process, by its dimensional parameters with rough forging
Associated, overcome tradition and fully rely on the extensive pattern that technical staff's experience controls temperature retention time, be easily caused different heats and produce
The uneven problem of quality level, after annealed technique, profile of tooth rag knife interior tissue is more uniform, and crystal structure is more preferable.
(2) quench: profile of tooth rag knife needs to carry out secondary preheating: be warmed up to 630 DEG C for the first time, insulation 0.5 hour laggard
Row preheats for second, is warming up to 835 DEG C, then is incubated 1.5 hours, the heating rate preheating twice:
V=(t-t0) (crwt+mowt)
In above formula, v is heating rate, DEG C/h；T be holding temperature, unit be DEG C, t0 be initial temperature, unit be DEG C,
crwtFor the percent mass ratio of cr in rough forging, mowtPercent mass ratio for mo in rough forging.After be warmed up to 1050
DEG C, oil quenching of coming out of the stove；The hardening media of oil quenching is 32# machine oil.
The present embodiment in the quenching process of heat treatment, the matter of the heating rate that preheats twice and cr and mo in rough forging
Amount percent value is associated, and Technology for Heating Processing coordinates rough forging component so that being obtained in that excellent wear-resisting after heat treatment
Property and shock resistance, quenching high-temperature heating speed suitably, can make there is enough phosphorus content and alloy unit in profile of tooth rag knife
On the one hand cellulose content, so increase the wearability of cutter, on the other hand stops crystal grain from being grown up, prevents overheated exceeded, can enter one
Step guarantees linearity and the perpendicularity of overall long blade.
(3) it is tempered: the profile of tooth rag knife of quenched process is carried out being tempered for the first time at a temperature of 550 DEG C, tempering insulation
Time is 2 hours, then carries out second tempering at a temperature of 565 DEG C, and tempering insulation time is 2 hours, cools down hardness of coming out of the stove
56 degree.
(4) crown surface induction heating quenching: take the profile of tooth rag knife after the above bulk heat treatmet to recycle high frequency
Induction heating apparatus carries out surface induction heating quenching to crown, and the induction heating temperature of crown is 660-710 DEG C, sensing heating
The 10-20 second, then use quality concentration be 15% brine hardening to room temperature, then nitre crown being put into 160-200 DEG C of constant temperature
Carry out temper in acid salt solution (55%nano3+45%kno3), after insulation 20-40 minute, take out and be air cooled to room temperature.This
Embodiment adopts salt made from earth containing a comparatively high percentage of sodium chloride salt bath quenching, and the thermal efficiency is high, crown homogeneous heating, reduces strain cracking in heat treatment process for the cutter tooth
Tendency, makes heat treatment relatively reliable to the organizational controls of rag knife tooth.Crown surface is improve using surface induction heating quenching
Hardness and wearability, simultaneously the center portion of crown also retain good toughness, cutter tooth has high tough and high-wearing feature, using the longevity
Life is longer, reduces the reconditioning number of times of cutter tooth in operation.
What deserves to be explained is, because Glass cleaning cloth is a kind of cloth with certain retractility, once right during cutting cloth
The pulling force that cloth applies produces change, then cloth will produce different deformation, and the tooth-shape structure of Glass cleaning cloth surrounding is to cutter tooth
The performance such as sharpness also have high requirements.Therefore, the crown processing of profile of tooth rag knife is very crucial, overall to rag knife
After heat treatment, then crown surface is carried out with induction hardening, can advantageously cut in the high-quality of Glass cleaning cloth.
Step 5, the polish of profile of tooth rag knife:
(1) plane of fine grinding profile of tooth rag knife and side；
(2) cnc gear grinding machines are adopted to refine cutter tooth；
(3) remove the burr of crown, survey edge of a knife sharpness with 3 kilograms, and require the linearity of the edge of a knife within 0.05mm.
What the properties of the profile of tooth rag knife that the present embodiment prepares disclosure satisfy that Glass cleaning cloth cuts requirement, obtains
Glass cleaning cloth otch is neat, flush edge, no bound edge；And Glass cleaning cloth regular shape after cutting, accuracy to size height, profile of tooth is cut cloth
Glass cleaning cloth manufacturer is sold to by knife, has obtained good feedback.
Just may be done to cutting of few one piece of Glass cleaning cloth using profile of tooth rag knife at most 4 knife that the present embodiment prepares
Operation, cuts mode compared to tradition using square dies, saves die sinking cost, and greatly reduces the waste of cloth,
Improve production efficiency, reduce production cost.The mode of Glass cleaning cloth is cut, roll setting order is had nothing in common with each other in actual production, under
The process that one piece of Glass cleaning cloth is only just cut in face is introduced, and other modes repeat no more.Concretely comprise the following steps:
1) the glasses cloth that conveyer device traction machines runs；
2) hold down gag clamps and compresses glasses cloth；
3) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on y direction, glasses cloth is carried out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
4) conveyer device continues traction glasses cloth operation distance to a declared goal, and on y direction, profile of tooth rag knife is again along vertically side
To whereabouts, glasses cloth is cut；
5) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on x direction, glasses cloth is carried out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
6) on x direction, profile of tooth rag knife runs distance to a declared goal in the y-direction, vertically falls again, to glasses cloth
Cut, so far the operation that cuts of single Glass cleaning cloth completes.Described x direction and y direction are orthogonal two levels
Direction.
Embodiment 2
A kind of processing method of profile of tooth rag knife of the present embodiment, the steps include:
Step one, raw material prepare: profile of tooth rag knife adopts rough forging to be obtained；Rough forging includes following percent mass
The component of ratio: c 1.53%；Si 0.25%；Mn 0.45%；Cr 11.00%；Mo 1.00%；V 0.4%；P 0.025%；
S 0.01%, balance of fe and inevitable impurity.
Step 2, the annealing of rough forging: by the rough forging in step one through annealing, annealing temperature is
860 DEG C, insulation a period of time after stove be cooled to 720 DEG C, insulation a period of time after again furnace cooling to 530 DEG C of air coolings of coming out of the stove；Insulation
Time is related to the dimensional parameters of rough forging, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the value of adjustment factor k is 0.2, xpFor rough forging
Length, mm；ypFor the width of rough forging, mm；zpFor the thickness of rough forging, mm.
Step 3, the roughing of rough forging: after annealing, rough forging is made and leaves 0.5mm allowance for finish
Workpiece, its roughing technique is:
(1) levelling machine corrects plane and the side of rough forging；
(2) plane and the side of rough forging roughly ground by grinding machine；
(3) required profile of tooth is cut out in wire cutting.
Step 4, heat treatment:
(1) anneal: anneal again before quenching through step 3 rough machined profile of tooth rag knife, be heated to 600 DEG C, be incubated one
After the section time, furnace cooling is to 500 DEG C of air coolings of coming out of the stove；Similarly, temperature retention time of herein annealing in the present embodiment still with rough forging
Dimensional parameters related, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the value of adjustment factor k is 0.4；xpFor rough forging
Length, mm；ypFor the width of rough forging, mm；zpFor the thickness of rough forging, mm.
(2) quench: profile of tooth rag knife needs to carry out secondary preheating: be warmed up to 660 DEG C for the first time, insulation 0.8 hour laggard
Row preheats for second, is warming up to 860 DEG C, then is incubated 0.5 hour, the heating rate preheating twice:
V=(t-t0) (crwt+mowt)
In above formula, v is heating rate, DEG C/h；T be holding temperature, unit be DEG C, t0 be initial temperature, unit be DEG C,
crwtFor the percent mass ratio of cr in rough forging, mowtPercent mass ratio for mo in rough forging.After be warmed up to 1000
DEG C, oil quenching of coming out of the stove；The hardening media of oil quenching is 32# machine oil.
(3) it is tempered: the profile of tooth rag knife of quenched process is carried out being tempered for the first time at a temperature of 550 DEG C, tempering insulation
Time is 2 hours, then carries out second tempering at a temperature of 570 DEG C, and tempering insulation time is 2 hours, cools down hardness of coming out of the stove
55 degree.
Step 5, the polish of profile of tooth rag knife:
(1) plane of fine grinding profile of tooth rag knife and side；
(2) cnc gear grinding machines are adopted to refine cutter tooth；
(3) remove the burr of crown, survey edge of a knife sharpness with 3 kilograms, and require the linearity of the edge of a knife within 0.05mm.
Embodiment 3
A kind of processing method of profile of tooth rag knife of the present embodiment, the steps include:
Step one, raw material prepare: profile of tooth rag knife adopts rough forging to be obtained；Rough forging includes following percent mass
The component of ratio: c 1.5%；Si 0.27%；Mn 0.42%；Cr 13.00%；Mo 0.91%；V 0.36%；P 0.025%；
S 0.01%, balance of fe and inevitable impurity.
Step 2, the annealing of rough forging: by the rough forging in step one through annealing, annealing temperature is
840 DEG C, insulation a period of time after stove be cooled to 735 DEG C, insulation a period of time after again furnace cooling to 510 DEG C of air coolings of coming out of the stove；Insulation
Time is related to the dimensional parameters of rough forging, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the value of adjustment factor k is 0.2, xpFor rough forging
Length, mm；ypFor the width of rough forging, mm；zpFor the thickness of rough forging, mm.
Step 3, the roughing of rough forging: after annealing, rough forging is made and leaves 0.5mm allowance for finish
Workpiece, its roughing technique is:
(1) levelling machine corrects plane and the side of rough forging；
(2) plane and the side of rough forging roughly ground by grinding machine；
(3) required profile of tooth is cut out in wire cutting.
Step 4, heat treatment:
(1) anneal: anneal again before quenching through step 3 rough machined profile of tooth rag knife, be heated to 620 DEG C, be incubated one
After the section time, furnace cooling is to 500 DEG C of air coolings of coming out of the stove；Similarly, temperature retention time of herein annealing in the present embodiment still with rough forging
Dimensional parameters related, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, min；K is adjustment factor, and the value of adjustment factor k is 0.3；xpFor rough forging
Length, mm；ypFor the width of rough forging, mm；zpFor the thickness of rough forging, mm.
(2) quench: profile of tooth rag knife needs to carry out secondary preheating: be warmed up to 625 DEG C for the first time, insulation was carried out after 1 hour
Preheat for second, be warming up to 835 DEG C, then be incubated 1.5 hours, the heating rate preheating twice:
V=(t-t0) (crwt+mowt)
In above formula, v is heating rate, DEG C/h；T be holding temperature, unit be DEG C, t0 be initial temperature, unit be DEG C,
crwtFor the percent mass ratio of cr in rough forging, mowtPercent mass ratio for mo in rough forging.After be warmed up to 1010
DEG C, oil quenching of coming out of the stove；The hardening media of oil quenching is 32# machine oil.
(3) it is tempered: the profile of tooth rag knife of quenched process is carried out being tempered for the first time at a temperature of 555 DEG C, tempering insulation
Time is 2 hours, then carries out second tempering at a temperature of 565 DEG C, and tempering insulation time is 2 hours, cools down hardness of coming out of the stove
54 degree.
Step 5, the polish of profile of tooth rag knife:
(1) plane of fine grinding profile of tooth rag knife and side；
(2) cnc gear grinding machines are adopted to refine cutter tooth；
(3) remove the burr of crown, survey edge of a knife sharpness with 3 kilograms, and require the linearity of the edge of a knife within 0.05mm.
Claims (8)
1. a kind of method that utilization profile of tooth rag knife cuts Glass cleaning cloth, the steps include:
1) the glasses cloth that conveyer device traction machines runs；
2) hold down gag clamps and compresses glasses cloth；
3) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on y direction, glasses cloth is cut out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
4) conveyer device continue traction glasses cloth run distance to a declared goal, on y direction profile of tooth rag knife again vertically under
Fall, glasses cloth is cut；
5) open tool holder lifting mechanism so that profile of tooth rag knife vertically falls on x direction, glasses cloth is cut out
Cut；Cut after completing, profile of tooth rag knife vertically rises, and resets；
6) on x direction, profile of tooth rag knife runs distance to a declared goal in the y-direction, vertically falls again, and glasses cloth is carried out
Cut, so far the operation that cuts of single Glass cleaning cloth completes.
2. a kind of utilization profile of tooth rag knife according to claim 1 cut Glass cleaning cloth method it is characterised in that: described
The course of processing of profile of tooth rag knife is:
Step one, raw material prepare: profile of tooth rag knife adopts rough forging to be obtained；
Step 2, the annealing of rough forging: by the rough forging in step one through annealing, annealing temperature is 830-
860 DEG C, after insulation a period of time, stove is cooled to 720-740 DEG C, and after insulation a period of time, furnace cooling to 500-530 DEG C is come out of the stove sky again
Cold；
Step 3, the roughing of rough forging: after annealing, rough forging is made the workpiece leaving allowance for finish, its
Roughing technique is:
(1) levelling machine corrects plane and the side of rough forging；
(2) plane and the side of rough forging roughly ground by grinding machine；
(3) required profile of tooth is cut out in wire cutting；
Step 4, heat treatment:
(1) anneal: anneal again before quenching through step 3 rough machined profile of tooth rag knife, be heated to 600-630 DEG C, be incubated one
After the section time, furnace cooling is to 500 DEG C of air coolings of coming out of the stove；
(2) quench: profile of tooth rag knife needs to carry out secondary preheating: be warmed up to 620-660 DEG C for the first time, after insulation 0.5-1 hour
Carry out second preheating, be warming up to 820-860 DEG C, then be incubated 0.5-1.5 hour, be finally warmed up to 1000-1050 DEG C, go out furnace oil
Quench；
(3) it is tempered: the profile of tooth rag knife of quenched process is carried out being tempered for the first time at a temperature of 550-560 DEG C, tempering insulation
Time is 2 hours, then carries out second tempering at a temperature of 560-570 DEG C, and tempering insulation time is 2 hours, and cooling is come out of the stove
Hardness 54-56 degree；
Step 5, the polish of profile of tooth rag knife:
(1) plane of fine grinding profile of tooth rag knife and side；
(2) cnc gear grinding machines are adopted to refine cutter tooth；
(3) remove the burr of crown it is ensured that the sharpness of the edge of a knife and linearity.
3. a kind of utilization profile of tooth rag knife according to claim 2 cut Glass cleaning cloth method it is characterised in that: step one
Using rough forging include the component of following mass percent: c 1.45%-1.53%；Si 0.25%-0.3%；mn
0.4%-0.45%；Cr 11.00%-14.2%；Mo 0.85%-1.00%；V 0.31%-0.4%；P≤0.025%；s≤
0.01%, balance of fe and inevitable impurity.
4. a kind of utilization profile of tooth rag knife according to claim 3 cut Glass cleaning cloth method it is characterised in that: step 2
In the annealing process of step 4, temperature retention time is related to the dimensional parameters of rough forging, particularly as follows:
H=kxp+(yp+zp)/2
In above formula, h is temperature retention time, and unit is min；K is adjustment factor；xpFor the length of rough forging, unit is mm；ypFor
The width of rough forging, unit is mm；zpFor the thickness of rough forging, unit is mm.
5. a kind of utilization profile of tooth rag knife according to claim 4 cut Glass cleaning cloth method it is characterised in that: adjust system
The span of number k is 0.2～0.6.
6. a kind of utilization profile of tooth rag knife according to claim 3 or 4 cut Glass cleaning cloth method it is characterised in that: step
In rapid four quenching technical, the heating rate that preheats twice:
V=(t-t0) (crwt+mowt)
In above formula, v be heating rate, unit be DEG C/h；T be holding temperature, unit be DEG C, t0 be initial temperature, unit be DEG C,
crwtFor the percent mass ratio of cr in rough forging, mowtPercent mass ratio for mo in rough forging.
7. a kind of utilization profile of tooth rag knife according to claim 6 cut Glass cleaning cloth method it is characterised in that: step 4
Quenching process in be warmed up to 630 DEG C for the first time, insulation 0.5 hour after carry out second preheating, be warming up to 835 DEG C, then be incubated
1.5 hours, finally it is warmed up to 1050 DEG C, oil quenching of coming out of the stove；During tempering by the profile of tooth rag knife of quenched process at a temperature of 550 DEG C
Carry out being tempered for the first time, tempering insulation time is 2 hours, at a temperature of 565 DEG C, then carry out second tempering, during tempering insulation
Between be 2 hours.
8. a kind of utilization profile of tooth rag knife according to claim 7 cut Glass cleaning cloth method it is characterised in that: step 5
Survey edge of a knife sharpness with 3 kilograms, and require the linearity of the edge of a knife within 0.05mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112847625A (en) * | 2021-01-06 | 2021-05-28 | 宁波长阳科技股份有限公司 | Optical diaphragm cutting equipment, cutting method thereof and machining method of cutting die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112847625A (en) * | 2021-01-06 | 2021-05-28 | 宁波长阳科技股份有限公司 | Optical diaphragm cutting equipment, cutting method thereof and machining method of cutting die |
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