A perfect mould, smooth mould design needs 16 flow

Time:2023-06-30 17:09:26
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source:WILK CNC Machining

: of the first pace? Analyse and digest of graph of calamity broken?D and 3D graph, its content includes the following fields: 1, the geometrical appearance of goods. 2, the dimension of goods, public errand and design are standard. 3, the technology of goods asks (namely technical condition) . 4, goods place reachs color with plastic name, shrink. 5, the exterior requirement of goods. The 2nd: The affirmatory injection norms of injection model basically is the size according to plastic products and production lot surely really. Set design personnel to be when choice inject machine, the valid area that basically considers its model to change pattern of the rate, shot, force that lock up a model, installation (the span inside inject machine pull rod) , top of the quantity that contain a module, top gives a form to reach decide length. If client already provided the model that uses injection or specification, design personnel must undertake school nucleus to its parameter, if cannot satisfy a requirement, must discuss to change with the client. After the editor is finished, duplicate content stickup in the editor that manages to material of small letter tiring-room can. The 3rd: Model antrum amount is reached surely really model what antrum arranges mould antrum amount is affirmatory and main it is appearance of the umbriferous area according to goods, geometry (have smoke core without side) , goods precision, batch and economic benefits will decide. Model antrum amount basically undertakes deciding according to the following element: 1, the production lot of goods (lunar batch or year batch) . 2, goods has smoke core and its processing technique without side. 3, mould over all dimension and the valid area that injection installs a mould (or the span inside inject machine pull rod) . 4, the shot of goods weight and inject machine. 5, the umbriferous area of goods and lock model force. 6, goods precision. 7, goods color. 8, economic benefits (the production of every model is worth) . Above these elements are restricted each other sometimes, because this is when affirmatory design program, must undertake harmony, satisfy its in order to assure main condition. After sexual strong amount is certain, undertake model the permutation of antrum, and model the layout of antrum position. Model the balance of the design that the permutation of antrum involves mould dimension, gating system, gating system, smoke core (slide block) the design of the design of the orgnaization, design of mold insert core and system of hot flow path. The choice that these problems reach runner place as a result of cent face concerns above, it is so in specific design process, want to undertake necessary adjustment, in order to achieve the idealest design. The 4th pace: Cent face decides cent face really, the goods that is in a few abroad already made specific provision in the graph, but should be decided in a lot of mould designs by mould personnel, will tell commonly, the cent on plane face allows manageability quite, the cent that comes up against stereo form sometimes face ought to special attention. The choice of its cent face should comply with is the following principle: 1, the exterior that does not affect product, have the product of specific requirement to the exterior especially, should note the cent effect that faces the exterior more. 2, benefit the precision at assuring goods. 3, , benefit is machined at the mould, especially model the treatment of antrum. First answer orgnaization. 4, the benefit design at system of gating system, exhaust, cooling system. 5, benefit the drawing of patterns at goods, ensure when to flying a model, make goods stays at movable mould a side. 6, facilitating metal insert. The 5th pace: When designing side direction cent orgnaization, should ensure its on the safe side, avoid as far as possible with decide orgnaization happening interference, should install on the mould otherwise first answer orgnaization. The 6th pace: Mould bases is decided really and of standard component after choosing above content to decide entirely, design mould bases according to what deciding content. When designing mould bases, choose as far as possible allow mould bases, the form that gives standard mould bases certainly, norms reachs ply of A, B board. Standard component includes general standard reach a mould special standard component two kinds big. General standard wait like fastener. The mould is special if standard component locates circle, runner is covered, 2 special bedspring, refrigeration and heating element, cent orgnaization reachs push rod, ejector sleeve, guide pillar, guide-post bushing, mould exact location uses standard component to wait. Those who need ambitious shift is, when designing a pattern, choose standard mould bases and standard component as far as possible, because standard component has very big one part is already commercial, can buy in the market at any time, this makes cycle to shortening, reducing production cost is extremely advantageous. After the measure that buy the home is certain, to the mould concerned spare parts should have necessary intensity and rigid consideration, choose mould bases with school nucleus place proper, be opposite especially large mould, this are attached most importance to especially should. : of the 7th pace? Bail of accept of rank ⑾ small car makes the same score ⒎ of Chi of ≡ of Lai Nan of Jian of condyle of ㄖ of  of gourd ladle of bail of accept of rank ⑾ small car to come string of my Ji of Wu Chun of Lei of Jian billows Bei is graceful banter of charming of Jing of Mei of take along sth to sb of figured woven silk material of model ā H protects   , use the clearing of runner in order to facilitate mould treatment is reached. 2, irrigate runner position to be apart from model antrum the distance of each place should agree as far as possible, make its flow is the shortest (general flood mouth is accomplished very hard) . 3, when runner position should assure plastic infuse antrum to model in antrum place of capacious, large wall, in order to facilitate plastic flow into. 4, avoid plastic in flow into model rush continuously when antrum model antrum wall, model core or insert, it is plastic can flow into as soon as possible model antrum is departmental, avoid model core or insert are out of shape. 5, avoid goods to produce frit lapping defect as far as possible, if want generation, make its deliquescent generation is in mark the place with not main product. 6, runner position reachs his plastic infuse direction, should be plastic when infuse antrum can along model antrum parallel direction is flowed into equably, be helpful for model the eduction of the gas inside antrum. 7, runner should design the place that keeps clear of the most easily on goods, do not affect the exterior of goods as far as possible at the same time. The 8th pace: The top that carries the design product that gives a system on the head gives a form, baconian rise can divide go out for mechanical top, hydraulic pressure top goes out, pneumatic top gives 3 kinds big. Going out in mechanical top is inject shapes in the process the last link, the stand or fall that carries a quality on the head will decide the quality of goods finally, accordingly, goods top goes out is to cannot be ignored. Following principle should abide by when design top gives a system: 1, be out of shape to make because the top gives generation,goods is not sent, thrust dot should be stood by as far as possible model core or be hard to the place of drawing of patterns, be like the long and thin hollow cylinder on goods, use ejector sleeve top to go out more. Thrust nods decorate should balance as far as possible. 2, thrust is nodded should action can bear in goods the position with the largest force, reach the place with good tigidity, the ministry that be like muscle, dash forward the place such as the predestined relationship, wall predestined relationship of housing goods. 3, avoid thrust to nod action to be in as far as possible products is smaller on plane, prevent product very white, top is advanced, if housing form product reachs canister form product,use ejector plate top to go out more. 4, avoid a top to give a trace to affect goods exterior as far as possible, the top gives device to should be set in the concealed surface of goods or blame adornment surface. Want to notice to decide the position and the alternative that carry a form on the head especially at transparent goods. 5, power gets when going out to make goods is supporting even, because vacuum is adsorptive,avoid at the same time and make goods generation is out of shape, often use compound top to go out or the top of special form gives a system, like ejector plate or push rod, push rod, ejector sleeve compound top goes out, perhaps use push rod of the thing that take energy of life, push piece etc decide device, still should install the valve that take energy of life when necessary. The 9th pace: The designs cooling system design of cooling system is a trivaller job, the impact of the uniformity that should consider cooling effect, refrigeration and cooling system to mould whole structure. The design of cooling system includes the following content: 1, the permutation of cooling system the particular form of means and cooling system. 2, what the specific place of cooling system reachs size is affirmatory. 3, if key place moves the refrigeration of model core or mold insert. 4, the refrigeration of side slide block and sideslip core. 5, of the design of cooling component and cooling standard unit choose. 6, the design of sealed structure. The 10th pace: The oriented device on plastic injection mould, when using standard mould bases, had come down certainly. Usually, it is OK that design personnel wants to be chosen by mould bases norms only. But when asking to must set accurate and oriented plant according to goods, must undertake specific design by compose of recognizance of model of design personnel basis. Direct cent is commonly: Move, fixed die between oriented; Ejector plate and push rod fixed head are oriented; Ejector plate lever and use pattern plate between oriented; Fixed die with edition of the pilfer that push Liu between oriented. After oriented device is restricted as a result of what suffer treatment precision or using period of time commonly, its cooperate loss of accuracy, can affect the precision of goods directly, because this asks to precision higher products must design exact location component separately, some has been standardized, if cone-shaped fixed position is sold, fixed position piece can offer choose, but fibril of a little accurate and oriented tabulator undertakes be designinged technically according to the particular structure of module. Eleventh ministry: Of mould rolled steel choose a mould to shape spare parts (model antrum, model core) of material choose, basically decide according to the batch of goods, plastic category. Right to Gao Guangze or transparent goods, the martensite that basically chooses the type such as 4Cr13 is able to bear or endure corrode stainless steel or steel of sclerosis of effectiveness for a given period of time. Contain the plastic products that fibre glass enhances, should choose the type such as Cr12MoV have tall wearability quench steel. When the material of goods is PVC, POM or containing fire retardant, must choose be able to bear or endure corrode stainless steel. 12 paces: After scale deserves to install a graph to discharge a mould bases and relevant content to decide, can scale assembly drawing. In process of scale assembly drawing, right already the gating system of make choice of, cooling system, system that smoke core, top gives a system to wait make be coordinated further and perfect, achieve idealer design from the structure. Thirteenth pace: The scale of main part drawing is in the mould scale antrum or model when core pursues, must creed place is given shape whether are dimension, public errand and rake of drawing of patterns coordinated, its design is standard whether as fiducial as the design of goods photograph is harmonious. Consider even at the same time model antrum, model the craft sex when core is being machined and the mechanical function when using and its dependability. The scale that structural member pursues, when using standard mould bases, give the structural member beyond standard mould bases, major need not scale structural member pursues. The 14th pace: Of blueprint paper after proofreading mould graph design to finish, the mould designs personnel to make blueprint and relevant source director staff undertake corrector together. The concerned design basis that press-corrector should provide in the light of client place and client place raise a requirement, wait for those who have a system to proofread to the feasibility of principle of the total construction of the mould, job, operation. The 15th pace: After the countersign mould of blueprint paper designs blueprint to finish, must give instantly the client is approbated. After only the client agrees, the mould just can get the materials ready devoted production. When the client bigger opinion needs to heavy repair again when changing, must give again after be redesigned again the client is approbated, till the client is satisfactory till. After the editor is finished, duplicate content stickup in the editor that manages to material of small letter tiring-room can. The 16th pace: Exhaust system to ensuring goods shapes quality is having crucial effect, its exhaust means has the following kinds: 1, use air discharge duct. Air discharge duct is set in commonly model pitch is final by full place. Because the deepness of air discharge duct is plastic different and different, basically be with plastic the biggest gap that when producing flash, allows will decide. 2, use model core, mold insert, push rod cooperate clearance or exhaust of special venting plug. 3, cause vacuum to be out of shape in be useful in goods to prevent sometimes, must design exhaust to set a needle. The mould of integrated above designs conclusion program, it is OK to have some of content among them amalgamative consideration, some content should relapse you consider. Because often contradict each other because of usually among them, in must designing a process constant demonstration, mutual harmonious ability gets better processing, involve the content of mould structure respect especially, must treat seriously, often want to do a few plan to consider at the same time, list as far as possible to structure of avery kind of the actor defect of each respect, in analysis of one by one, undertake optimizing. The production that the reason on the structure can affect a pattern directly and use, sequential and severe drop can cause mould of a complete set of to discard as useless even. So, mould design is the decisive one pace that assures mould quality, its design a process is project of a system. CNC Milling