CN102529013A - Method for manufacturing scraping knife - Google Patents
Method for manufacturing scraping knife Download PDFInfo
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- CN102529013A CN102529013A CN2012100277852A CN201210027785A CN102529013A CN 102529013 A CN102529013 A CN 102529013A CN 2012100277852 A CN2012100277852 A CN 2012100277852A CN 201210027785 A CN201210027785 A CN 201210027785A CN 102529013 A CN102529013 A CN 102529013A
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- Prior art keywords
- blade
- knife rest
- die cavity
- injection
- scraper
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/72—Cutting equipment, e.g. punches
- B29L2031/7202—Knives
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
- G03G21/0017—Details relating to the internal structure or chemical composition of the blades
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a method for manufacturing a scraping knife. The scraping knife comprises a knife rest made of ebonite and a blade made of soft rubber. The method for manufacturing the scraping knife comprises the following steps of: preparing a die; adding the ebonite and the soft rubber; performing injection molding of the knife rest; performing the injection molding of the blade; and demolding. According to the method, the full-plastic scraping machine is produced by using a double-material injection molding machine, so that the cost of production raw materials is reduced, production processes are reduced, the planeness of the scraping knife is improved, namely the quality of products is improved, and environmental pollution caused by the conventional process for manufacturing the scraping knife is avoided.
Description
Technical field
The present invention relates to the parts of electrophotograph imaging device, especially the preparation method of scraper in the handle box of Electrophotographingapparatus apparatus.
Background technology
Electrophotograph imaging device is a kind ofly to utilize electric photographing imaging to handle the equipment that on recording materials, forms image, and it comprises that electrophotographic copier, electricity are taken a picture and prints facsimile machine that mechanical, electrical photograph prints etc.The handle box that in the electrophotograph imaging device that the electricity consumption photographing imaging is handled, uses is one and comprises that at least handle box can be releasably attached on the main body of electrophotograph imaging device as the developer roll of developing apparatus and the unit box of electronic photographic sensitive drum.
A typical electrophotograph imaging device is a laser printer, and laser printer is one of present most widely used computer output peripheral equipment, and it utilizes the physics, the principles of chemistry of light, electricity, heat through interaction output character or image.The groundwork process of laser printer can be divided into seven steps such as charging, exposure, development, transfer printing, photographic fixing, the electricity that cleans, disappears.At first, photosensitive drum surface is charged by charging roller equably, and laser scanner is launched the laser through ovennodulation that contains image information to photosensitive drums, forms and the electrostatic latent image of treating that duplicating image is corresponding at photosensitive drum surface.Then, from the carbon dust of developer roll then be adsorbed on and make electrostatic latent image convert visual image on the photosensitive drum surface, along with the rotation of photosensitive drums, carbon dust replaces to transfer roll at the visual image that photosensitive drum surface forms.At last; Under the effect of transfer roll transfer voltage; Visual image is transferred on the recording mediums such as paper; Through heating and the pressurization to the visual image on the recording medium of warm-up mill and backer roll, the visual image of carbon dust formation solidifies fully on recording medium, the basic imaging process of Here it is laser printer.When laser printer uses, constantly repeat basic imaging process.
Developer roll is through Electrostatic Absorption effectiveness the carbon dust in the toner to be adsorbed on its surface.Before the carbon dust on the developer roll is transferred on the photosensitive drums, need the carbon dust on developer roll surface to be wipeed off to suitable thickness, in order to the uniformity that guarantees to develop through the powder delivery scraper.The blade of powder delivery scraper is along the side face of developer roll axial elasticity contact developer roll, and the length of powder delivery cutter blade is identical with the developer roll axial length.Making the carbon dust layer that it is suitable that the developer roll surface has all even thickness of one deck through the powder delivery scraper is the good key of print quality.
Photosensitive drums is before reusing, and its last course of work makes photosensitive drum surface leave rest potential, and because rest potential to the attraction of carbon dust, makes that photosensitive drum surface can residual a small amount of carbon dust.Have only the rest potential of elimination and residual carbon dust, could improve transfer efficiency.So, need and disappear to the photosensitive drums cleaning.The electricity that disappears adopts pre-exposure usually, and cleaning adopts cleaning doctor usually.On the side face of being close to photosensitive drums, cleaner scraper blade length is identical with the axial length of photosensitive drums along photosensitive drum shaft for cleaner scraper blade, and in the photosensitive drums rotation process, cleaning doctor scrapes off the remaining carbon dust on its surface, and carbon dust falls in the waste powder hopper.
Powder delivery scraper and cleaning doctor all are made up of knife rest and the blade that is fixed on the knife rest, and its difference is that powder delivery doctor blade holder width is narrower with respect to cleaning doctor knife rest width.Powder delivery scraper and cleaning doctor are referred to as scraper.
Existing scraper has two kinds of structures: adhesive tape type and all-metal type.Adhesive tape type scraper is made up of adhesive tape and metal knife rest as blade, and the support end limit that adhesive tape is extended along its length is fixed on the metal knife rest through viscose glue.All-metal type scraper is made up of metal blade and metal knife rest, and the support end limit that metal blade extends along its length is through being fixedly welded on the metal knife rest.
The manufacturing process of existing scraper: the manufacturing process of adhesive tape type scraper is that elder generation makes the metal knife rest, makes adhesive tape through extruding-out process through punch forming process, at last adhesive tape and metal knife rest is adhesively fixed; The manufacturing process of all-metal type scraper is that elder generation makes metal knife rest and metal blade respectively through punch forming process, and is at last that metal knife rest and metal blade is fixing through welding.
Because metal material is more expensive than plastic material, so most of scraper adopts adhesive tape as blade, to save cost.And in the adhesive tape type scraper production process, being used for adhesive tape and the bonding viscose glue of metal knife rest is a kind of poisonous glue that is distributing sharp aroma, and contacting this viscose glue for a long time can damage human body.In addition, the production process of existing scraper is various, and causes the reduction of scraper flatness in knife rest and the set of blades process of assembling easily, influences scraper control opaque amount.
Summary of the invention
The purpose of this invention is to provide a kind of production process few, not only reduced cost but also the scraper preparation method of environmental protection.
For realizing above-mentioned purpose, scraper preparation method provided by the invention, its scraper comprises knife rest of being processed by the ebonite material and the blade of being processed by the flexible glue material, its making step comprises:
Be equipped with mould: make the mould of scraper, mould comprises blade die cavity and knife rest die cavity, and the blade die cavity is by a movably core rod filling;
Reinforced: the hopper to the main injection device of two material injection machines adds the ebonite material, adds the flexible glue material to the hopper of the secondary injection device of two material injection machines;
The injection moulding knife rest: main injection device plastifies and melt process the ebonite material, and melt is injected the knife rest die cavity, after the knife rest die cavity is filled with back and pressurize, core rod is withdrawed from the blade die cavity;
The injection moulding blade: secondary injection device plastifies and melt process the flexible glue material, and melt is charged into the blade die cavity, and the blade die cavity is filled with and pressurize;
The demoulding: behind knife rest die cavity and blade die cavity cooling and shaping, eject, promptly get scraper.
Visible by such scheme, the scraper of this programme made is made by the all-plastic material, has reduced the raw materials for production cost.Adopt two material injection machine one-shot formings to make scraper in addition, reduced operation, improved production efficiency, and making scraper process does not re-use poisonous glue, production process safety, environmental protection.
A concrete scheme is that the ebonite material is that glass strengthens polyphenylene sulfide (PPS+GF), glass fiber-reinforced polycarbonate (PC+GF) or polybutylene terephthalate (PBT).Adopt the knife rest of the scraper that preferred material in this scheme makes have structure firmly, not yielding and have characteristics of favorable elasticity.
Another concrete scheme is that the flexible glue material is TPUE (TPU) or polyamide (PA).It is good and have characteristics of certain intensity to adopt the blade of the scraper that preferable material in this scheme makes to have wearability.
Another concrete scheme is, mould is the mould of a scraper, and it comprises the die cavity of a blade and the die cavity of a knife rest.But scraper of one-shot forming, the simple easy operating of production technology.
The further scheme of such scheme is; In the injection moulding knife rest step, the nozzle temperature of main injection device is to be followed successively by 245～265 ℃, 270～290 ℃, 275～295 ℃ and 275～295 ℃ from feed end to four temperature ranges that discharge end divided on 255～285 ℃, the heating cylinder of main injection device; In the injection moulding blade step, the nozzle temperature of secondary injection device is to be followed successively by 170～180 ℃, 180～190 ℃, 185～195 ℃ and 185～195 ℃ from feed end to four humidity provinces that discharge end divides on 170～180 ℃, the heating cylinder of secondary injection device.According to the characteristic of scraper ebonite material and flexible glue material material, select this temperature range for use, can make scraper with good plasticity and intensity.
Another further scheme is, in the injection moulding knife rest step, screw speed is 149.5r/min, and injection pressure is 181.8Mpa, and injection time is 4.2s, and dwell pressure is 97.0Mpa, and the dwell time is 3.0s, and be 18.0s cool time; In the injection moulding blade step, screw speed is 126.5r/min, and injection pressure is 131.3Mpa, and injection time is 4.5s, and dwell pressure is 121.2Mpa, and the dwell time is 3.0s, and be 16.0s cool time; Wherein, after injection moulding knife rest step was accomplished, 2.0s began injection moulding blade step again with the cooling of knife rest die cavity, after injection moulding blade step is accomplished, knife rest die cavity and blade die cavity is cooled off 16.0s together.According to the blade construction shape facility that is applicable in the handle box, choose the relevant parameter in this programme, can guarantee that the knife rest of scraper and blade injection moulding are effective, scraper has firm structure.
Another concrete scheme is that mould is the mould of two continuous scrapers, respectively knife rest die cavity that it comprises two continuous blade die cavitys and is positioned at two blade die cavity both sides that link to each other; And after demoulding step, increase cutting step: the center line that extends along long axis direction that the blade of cutting machine is aimed at two continuous scrapers cuts, and two continuous scrapers are divided into two, and promptly gets two independently scrapers.
Visible by such scheme, two continuous scrapers that Shooting Technique completes only need pass through the cutting machine cutting and promptly accomplish the scraper making, and production process can keep the flatness of blade surface preferably, and the flatness that scraper is good has improved control opaque amount.In addition,, reduce production process, enhance productivity through Shooting Technique two scrapers of producing once, and safety and environmental protection in the production process.
A concrete scheme is; In the injection moulding knife rest step, the nozzle temperature of main injection device is to be followed successively by 245～265 ℃, 270～290 ℃, 275～295 ℃ and 275～295 ℃ from feed end to four temperature ranges that discharge end divided on 255～285 ℃, the heating cylinder of main injection device; In the injection moulding blade step, the nozzle temperature of secondary injection device is to be followed successively by 170～180 ℃, 180～190 ℃, 185～195 ℃ and 185～195 ℃ from feed end to four humidity provinces that discharge end divides on 170～180 ℃, the heating cylinder of secondary injection device.According to the characteristic of scraper ebonite material and flexible glue material material, select this temperature range for use, can make scraper with good plasticity and intensity.
Another concrete scheme is, in the injection moulding knife rest step, screw speed is 149.5r/min, and injection pressure is 181.8Mpa, and injection time is 5s, and dwell pressure is 112.5Mpa, and the dwell time is 3.5s, and be 22s cool time; In the injection moulding blade step, screw speed is 138r/min, and injection pressure is 141.4Mpa, and injection time is 4.5s, and dwell pressure is 112.5Mpa, and the dwell time is 3s, and be 20s cool time; Wherein, after injection moulding knife rest step was accomplished, 2s began injection moulding blade step again with the cooling of knife rest die cavity, after injection moulding blade step is accomplished, the knife rest die cavity blade die cavity that links to each other with two was cooled off 20s together.According to the blade construction shape facility that is applicable in the handle box, choose the relevant parameter in this programme, can guarantee that the knife rest of scraper and blade injection moulding are effective, scraper has firm structure.
Description of drawings
Fig. 1 is the structure chart that adopts two continuous scrapers of the scraper preparation method first embodiment made of the present invention;
Fig. 2 is the structure chart that adopts the scraper of scraper preparation method first embodiment making of the present invention;
Fig. 3 is an A partial enlarged view among Fig. 2;
Below in conjunction with accompanying drawing and each embodiment the present invention is described further.
The specific embodiment
The equipment that scraper preparation method of the present invention adopts is two material injection machines, and known pair of material injection machine is to be used to make one to contain the workpiece that two kinds of materials constitute, and workpiece moulding in a production cycle.Two material injection machines have major and minor two cover injection devices; Major and minor two cover injection devices are 90 degree angles and arrange; Main injection device injects main die cavity with a kind of material, and secondary injection device injects secondary die cavity with another kind of material, and main injection device and secondary injection device are accomplished injection moulding synchronously.
The fuselage of two material injection machines is provided with mold closing mechanism, and the effect of mold closing mechanism is a fixed mould, and wherein moving platen does to open and close the mould motion, and can lock mould.
Major and minor injection device has identical structure, in this structure that main injection device only is described, omits the explanation to secondary injection device.Main injection device has an injection seat, and the injection seat can move relative to the fuselage of two material injection machines, and plasticizing portion, injection part and the hopper of main injection device all are fixed on the injection seat.Plasticizing portion mainly comprises screw rod, heating cylinder etc., and injection part mainly comprises injection cylinder, piston and nozzle etc.Wherein the feed end of heating cylinder is used to receive the material from hopper, and the discharge end of heating cylinder is communicated with nozzle, and nozzle is communicated with the runner of mould.Be provided with screw rod and heating collar in the heating cylinder, material can plastify and fusion under the heat supply in screw rod shearing heat and barrel heating collar very soon, and the melt of fusion injects die cavity from nozzle under the injection thrust of injection cylinder.
First embodiment
Scraper preparation method step
1) is equipped with mould
The mould of mold closing mechanism is according to the structural design of two continuous scrapers shown in Figure 1.Two scrapers shown in Fig. 1 have identical structure, and the edge of a knife 3 alignment of the blade 2 of two scrapers also connect together, and the blade 2 that connects is positioned at same plane, the bending towards blade 2 the same sides of the support end of each knife rest 1.The dynamic model of mould surrounds two link to each other blade die cavity and two knife rest die cavitys with core rod on the cover half, wherein have on the cover half one movably core rod two continuous blade die cavitys are filled.
2) reinforced
Hopper to the main injection device of two material injection machines adds the ebonite material, and the ebonite material can select for use glass to strengthen in polyphenylene sulfide (PPS+GF), glass fiber-reinforced polycarbonate (PC+GF) or the polybutylene terephthalate (PBT) any.Simultaneously, add the flexible glue material to the hopper of the secondary injection device of two material injection machines, it is TPUE (TPU) or polyamide (PA) that the flexible glue material can be selected the flexible glue material for use.
3) set injection parameters and two continuous scrapers of injection moulding
The whole injection moulding process of two material injection machines is by the execution of relevant actuating unit actions such as the unified control of CPU mold closing mechanism, major-minor injection device and injection cylinder.
The input window that has injection parameters on the CPU control panel of two material injection machines comprises five plasticization temperatures, screw speed, injection pressure, dwell pressure, injection time and cool times.
Wherein, five plasticization temperatures are respectively the temperature range having respectively along four sections intervals that axial length is divided of heating cylinder inner chamber and the temperature range of nozzle, and lower near the feed end temperature in the heating cylinder, and are higher near nozzle one end temperature.Screw rod is by the screw rod motor-driven, and screw speed can influence the fusion speed of material.Injection pressure be meant injection machine when the injection moulding operation screw rod or plunger head to the plastic melt applied pressure.Dwell pressure is the pressure in the die cavity, and injection time is that material injects the time in the die cavity, and the dwell time promptly keeps the time of constant pressure in the die cavity, and be the time of cooling and shaping cool time.These parameter values are usually according to the structure of scraper and material and after repeatedly test is revised, obtain.
The parameter of present embodiment is set numerical value referring to shown in the table one.
Table one
| Knife rest | Blade | |
| Injection time | 5s | 4.5s |
| Dwell time | 3.5s | 3s |
| Cool time | 22s | 20s |
| Injection pressure 1 | 181.8Mpa | 141.4Mpa |
| Dwell pressure | 112.5Mpa | 112.5Mpa |
| Screw speed | 149.5r/min | 138r/min |
| Nozzle | 255-285℃ | 170-180℃ |
| Temperature 1 | 275-295℃ | 185-195 |
| Temperature | ||
| 2 | 275-295℃ | 185-195 |
| Temperature | ||
| 3 | 270-290℃ | 180-190℃ |
| Temperature 4 | 245-265℃ | 170-180℃ |
CPU carries out the injection moulding program according to the parameter values that sets:
Two knife rests of elder generation's injection moulding: two blade die cavitys are filled by core rod; The ebonite material gets in the heating cylinder, and under the rotation of high temperature and screw rod promoted, the ebonite material was plastified, is melt into melt; Melt injects the runner that is communicated with two knife rest die cavitys through nozzle, until being full of two knife rest die cavitys;
Two continuous blades of injection moulding again: after treating two knife rest die cavitys cooling 2s; Movably contract in the core rod and withdraw from two continuous blade die cavitys; The flexible glue material gets in the heating cylinder, and under the rotation of high temperature and screw rod promoted, the flexible glue material was plastified and be melt into melt; Melt injects the runner that the blade die cavity that links to each other with two is communicated with through nozzle, until being full of two continuous blade die cavitys;
The cooling and shaping and the demoulding: behind two in the mould continuous scraper cooling 20s, opening mold ejects two continuous scrapers from die cavity.
4) make independently scraper
Cutting: with the machine of cuing off two continuous scrapers are divided into two, the center line that extends along long axis direction that the blade of cutting machine is aimed at two continuous scrapers cuts, and makes two independently scrapers.
Referring to Fig. 2, scraper shown in Fig. 2 promptly is one of them scraper by two continuous scraper cutting back gained shown in Fig. 1.From the partial enlarged drawing of Fig. 2 is that Fig. 3 can understand; Scraper passes through Shooting Technique; Can produce the scraper of the firm connection between blade 2 and the knife rest 1; Be specially the end that knife rest 1 is used to install blade 2 protuberance 101 is set, protuberance 101 stretches in the blade 2, and this makes that the connection between knife rest 1 and the blade 2 is more firm.
Second embodiment
Scraper preparation method step
1) is equipped with mould
Make the mould of a scraper, comprise a blade die cavity and a knife rest die cavity, blade die cavity and knife rest die cavity are surrounded by the dynamic model of mould and the core rod on the cover half, wherein have on the cover half one movably core rod the blade die cavity is filled.
2) reinforced
Hopper to the main injection device of two material injection machines adds the ebonite material, and the ebonite material can select for use glass to strengthen in polyphenylene sulfide (PPS+GF), glass fiber-reinforced polycarbonate (PC+GF) or the polybutylene terephthalate (PBT) any.Simultaneously, add the flexible glue material to the hopper of the secondary injection device of two material injection machines, it is TPUE (TPU) or polyamide (PA) that the flexible glue material can be selected the flexible glue material for use.
3) set injection parameters and scraper of injection moulding
The parameter of two material injection machines is set numerical value referring to shown in the table two.
Table two
| Knife rest | Blade | |
| Injection time | 4.2s | 4.5s |
| Dwell time | 3.0s | 3.0s |
| Cool time | 18.0s | 16.0s |
| Injection pressure 1 | 181.8Mpa | 131.3Mpa |
| Dwell pressure | 97.0Mpa | 121.2Mpa |
| Screw speed | 149.5r/min | 126.5r/min |
| Nozzle | 255-285℃ | 170-180℃ |
| Temperature 1 | 275-295℃ | 185-195 |
| Temperature | ||
| 2 | 275-295℃ | 185-195 |
| Temperature | ||
| 3 | 270-290℃ | 180-190℃ |
| Temperature 4 | 245-265℃ | 170-180℃ |
The CPU of two material injection machines carries out the injection moulding program according to the parameter values that sets:
Elder generation's injection moulding knife rest: the blade die cavity is filled by core rod, and the ebonite material gets in the heating cylinder, under the rotation of high temperature and screw rod promotes; The ebonite material is plastified, is melt into melt; Melt injects the runner that is communicated with the knife rest die cavity through nozzle, until being full of knife rest die cavity, pressurize again;
Injection moulding blade again: after treating knife rest die cavity cooling 2s; Movably contract in the core rod and withdraw from the blade die cavity, the flexible glue material gets in the heating cylinder, under the rotation of high temperature and screw rod promotes; The flexible glue material is plastified and is melt into melt; Melt injects the runner that is communicated with the blade die cavity through nozzle, until being full of blade die cavity, pressurize again;
The cooling and shaping and the demoulding: behind the cooling of the scraper in mould 16s, opening mold ejects scraper from die cavity, promptly make a scraper, and blade construction can be referring to shown in Figure 2.
The present invention adopts the scraper of the all-plastic material of two material Shooting Techniques making, reduced the raw materials for production cost of scraper, and production process is simple, has also avoided using poisonous glue, safety and environmental protection.
Claims (9)
1. scraper preparation method, said scraper comprise the knife rest processed by the ebonite material and by the blade that the flexible glue material is processed, it is characterized in that:
The making step of said scraper comprises
Be equipped with mould: make the mould of scraper, said mould comprises blade die cavity and knife rest die cavity, and said blade die cavity is by a movably core rod filling;
Reinforced: the hopper to the main injection device of two material injection machines adds the ebonite material, adds the flexible glue material to the hopper of the secondary injection device of said pair of material injection machine;
Injection moulding knife rest: inject to said knife rest die cavity by said main injection device, after said knife rest die cavity is filled with also pressurize, said core rod is withdrawed from said blade die cavity;
The injection moulding blade: said secondary injection device injects to said blade die cavity, and said blade die cavity is filled with and pressurize;
The demoulding: behind said knife rest die cavity and said blade die cavity cooling and shaping, eject, promptly get scraper.
2. scraper preparation method according to claim 1 is characterized in that:
Said ebonite material is that glass strengthens polyphenylene sulfide (PPS+GF), glass fiber-reinforced polycarbonate (PC+GF) or polybutylene terephthalate (PBT).
3. scraper preparation method according to claim 1 is characterized in that:
Said flexible glue material is TPUE (TPU) or polyamide (PA).
4. scraper preparation method according to claim 1 is characterized in that:
Said mould is the mould of a scraper, and it comprises the die cavity of a blade and the die cavity of a knife rest.
5. scraper preparation method according to claim 4 is characterized in that:
In the said injection moulding knife rest step, the nozzle temperature of said main injection device is to be followed successively by 245～265 ℃, 270～290 ℃, 275～295 ℃ and 275～295 ℃ from feed end to four temperature ranges that discharge end divided on 255～285 ℃, the heating cylinder of said main injection device;
In the said injection moulding blade step, the nozzle temperature of said secondary injection device is to be followed successively by 170～180 ℃, 180～190 ℃, 185～195 ℃ and 185～195 ℃ from feed end to four humidity provinces that discharge end divides on 170～180 ℃, the heating cylinder of said secondary injection device.
6. according to claim 4 or 5 described scraper preparation methods, it is characterized in that:
In the said injection moulding knife rest step, screw speed is 149.5r/min, and injection pressure is 181.8Mpa, and injection time is 4.2s, and dwell pressure is 97.0Mpa, and the dwell time is 3.0s, and be 18.0s cool time;
In the said injection moulding blade step, screw speed is 126.5r/min, and injection pressure is 131.3Mpa, and injection time is 4.5s, and dwell pressure is 121.2Mpa, and the dwell time is 3.0s, and be 16.0s cool time;
Wherein, after said injection moulding knife rest step is accomplished, said knife rest die cavity cooling 2.0s is begun said injection moulding blade step again, after said injection moulding blade step is accomplished, said knife rest die cavity and said blade die cavity are cooled off 16.0s together.
7. scraper preparation method according to claim 1 is characterized in that:
Said mould is the mould of two continuous scrapers, and it comprises two continuous blade die cavitys and each the knife rest die cavity that is positioned at said two blade die cavity both sides that link to each other;
And after demoulding step, increase cutting step: the center line that extends along long axis direction that the blade of cutting machine is aimed at said two continuous scrapers cuts, and two continuous scrapers are divided into two, and promptly gets two independently scrapers.
8. scraper preparation method according to claim 7 is characterized in that:
In the said injection moulding knife rest step, the nozzle temperature of said main injection device is to be followed successively by 245～265 ℃, 270～290 ℃, 275～295 ℃ and 275～295 ℃ from feed end to four temperature ranges that discharge end divided on 255～285 ℃, the heating cylinder of said main injection device;
In the said injection moulding blade step, the nozzle temperature of said secondary injection device is to be followed successively by 170～180 ℃, 180～190 ℃, 185～195 ℃ and 185～195 ℃ from feed end to four humidity provinces that discharge end divides on 170～180 ℃, the heating cylinder of said secondary injection device.
9. according to claim 7 or 8 described scraper preparation methods, it is characterized in that:
In the said injection moulding knife rest step, screw speed is 149.5r/min, and injection pressure is 181.8Mpa, and injection time is 5s, and dwell pressure is 112.5Mpa, and the dwell time is 3.5s, and be 22s cool time;
In the said injection moulding blade step, screw speed is 138r/min, and injection pressure is 141.4Mpa, and injection time is 4.5s, and dwell pressure is 112.5Mpa, and the dwell time is 3s, and be 20s cool time;
Wherein, after said injection moulding knife rest step is accomplished, said knife rest die cavity cooling 2s is begun said injection moulding blade step again, after said injection moulding blade step is accomplished, said knife rest die cavity is cooled off 20s together with said two the blade die cavitys that link to each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100277852A CN102529013A (en) | 2012-02-08 | 2012-02-08 | Method for manufacturing scraping knife |
| PCT/CN2013/070812 WO2013117127A1 (en) | 2012-02-08 | 2013-01-22 | Method for manufacturing scraping knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100277852A CN102529013A (en) | 2012-02-08 | 2012-02-08 | Method for manufacturing scraping knife |
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| CN102529013A true CN102529013A (en) | 2012-07-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117127A1 (en) * | 2012-02-08 | 2013-08-15 | 珠海天威飞马打印耗材有限公司 | Method for manufacturing scraping knife |
| CN105947545A (en) * | 2016-06-02 | 2016-09-21 | 长春天地聚氨酯科技有限公司 | Scraper of scraper conveyer |
| CN106826147A (en) * | 2017-01-01 | 2017-06-13 | 王秋华 | Make doctor blade method |
| CN108089420A (en) * | 2016-11-22 | 2018-05-29 | 新智德株式会社 | The aligning clamp of cleaning balde and using its alignment method and the manufacture device of cleaning balde and use its manufacturing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106965369A (en) * | 2017-04-27 | 2017-07-21 | 温岭市航帆塑业有限公司 | A kind of injection machine |
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| US6348169B1 (en) * | 1999-04-28 | 2002-02-19 | Cadillac Products, Inc. | Method of making a dual durometer water shield |
| CN1432145A (en) * | 2000-12-15 | 2003-07-23 | 阪东化学株式会社 | Blade |
| CN101151413A (en) * | 2005-03-31 | 2008-03-26 | 阿尔巴尼国际公司 | Knife blade device and method for making same |
| CN101588904A (en) * | 2007-01-29 | 2009-11-25 | 阪东化学株式会社 | Blade for electrophotographic device and method for manufacturing the blade |
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| JP2004246086A (en) * | 2003-02-14 | 2004-09-02 | Bridgestone Corp | Developing blade and its manufacturing method |
| JP4844218B2 (en) * | 2006-04-27 | 2011-12-28 | セイコーエプソン株式会社 | Layer thickness regulating member, developing device, image forming apparatus, and image forming system |
| CN101254642A (en) * | 2008-03-02 | 2008-09-03 | 台州职业技术学院 | Dual-color one-shot forming injection mold and injection molding method thereof |
| CN102529013A (en) * | 2012-02-08 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Method for manufacturing scraping knife |
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- 2012-02-08 CN CN2012100277852A patent/CN102529013A/en active Pending
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2013
- 2013-01-22 WO PCT/CN2013/070812 patent/WO2013117127A1/en active Application Filing
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| US6348169B1 (en) * | 1999-04-28 | 2002-02-19 | Cadillac Products, Inc. | Method of making a dual durometer water shield |
| CN1432145A (en) * | 2000-12-15 | 2003-07-23 | 阪东化学株式会社 | Blade |
| CN101151413A (en) * | 2005-03-31 | 2008-03-26 | 阿尔巴尼国际公司 | Knife blade device and method for making same |
| CN101588904A (en) * | 2007-01-29 | 2009-11-25 | 阪东化学株式会社 | Blade for electrophotographic device and method for manufacturing the blade |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013117127A1 (en) * | 2012-02-08 | 2013-08-15 | 珠海天威飞马打印耗材有限公司 | Method for manufacturing scraping knife |
| CN105947545A (en) * | 2016-06-02 | 2016-09-21 | 长春天地聚氨酯科技有限公司 | Scraper of scraper conveyer |
| CN108089420A (en) * | 2016-11-22 | 2018-05-29 | 新智德株式会社 | The aligning clamp of cleaning balde and using its alignment method and the manufacture device of cleaning balde and use its manufacturing method |
| CN106826147A (en) * | 2017-01-01 | 2017-06-13 | 王秋华 | Make doctor blade method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013117127A1 (en) | 2013-08-15 |
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