The mould makes flow brief introduction

Make normally through what careful signs make a blueprint, make clear use plastic brand, diaphaneity to wait. 2.

Plastic make a manual or technical demand. 3.

Manufacturing crop. 4.

Plastic make a sample. Normally the mould designs assignment certificate by plastic basis of the member that make a technology shapes plastic make assignment certificate puts forward, the mould designs staff in order to shape plastic make an assignment certificate, mould design assignment certificate to design a pattern for the basis. 2, collect, analysis, digestive source is collected arrange about make a design, shape craft, shape equipment, machining and special treatment data, with having when designing a pattern, be used. 1.

Digest plastic make a plan, understanding is made utility, the analysis is plastic make craft sex, the technology such as dimension precision asks. For example plastic what is the demand that makes field of diaphaneity of an outer watch appearance, color, performance characteristics, model the circumstance such as geometrical structure, rake, insert is reasonable, frit lapping defect, shrinkage cavity shape the permission of blemish degree, have the outfit that do not have besmear, eletroplate, after waiting, adhesive bonding, bore is machined. The choice is plastic make the dimension with a dimension highest precision undertake an analysis, see estimation shape tolerancepublic errand whether under plastic make tolerancepublic errand, whether shape piece accord with the requirement plastic make come. In addition, understand plastic model to change even reach shape craft parameter. 2.

Digestive craft data, analyse what what craft assignment certificate puts forward to shape the requirement such as type of structure of norms of model of method, equipment, material, mould is appropriate, whether fulfil. Ought to satisfy into profile makings plastic make strength demand, have good liquidity, uniformity and isotropy, thermal stability. The basis is plastic make utility, sex of the reflection function with function of the requirement that should satisfy metal of coloring, plating into profile makings, adornment, necessary flexibility and plasticity, contrary perhaps transparency, adhesive bonding or the requirement such as weldability. 3.

Shape certainly the method is used press law, casting to control law or inject standard continuously. 4, the choice shapes equipment basis shapes the sort of equipment will have a pattern, accordingly must all sorts of hep shaping the function of equipment, norms, characteristic. For example to inject machine, in norms the respect ought to understand the following content: Dimension of installation of the inject capacity, pressure that lock up a model, inject pressure, mould, top gives diameter of aperture of device and dimension, nozzle and spray head spherical radius, runner covers fixed position to encircle dimension, mould journey of the biggest ply and the smallest ply, pattern plate, specific see relevant parameter. Want over all dimension of preliminary estimation mould, judgement mould whether be installed on selects inject engine and use. 5.

Particular construction program (one) definite pattern type is like suppress model (open wide type, close partly type, close type) , casting tool set, injection mould. (2) the mould structure that decides the main structure of mould type chooses ideal depends on what need certainly shaping equipment, ideal model antrum number, can make below infallible condition the job of mould itself satisfies this plastic make engineering technology and the demand that produce economy. Right plastic make engineering technology requirement is to should assure plastic make geometrical appearance, the surface is bright and clean spend and dimension precision. Producing economy to ask is to should make plastic make cost is low, manufacturing efficiency is tall, the mould can work continuously, service life is long, save able-bodied person. 3, influence mould structure and mould are individual systematic element is very much, very complex: 1.

Model antrum is decorated. According to model it is difficult that size of requirement of precision of geometrical structure characteristic, dimension, lot, mould is made cost of easy, mould affirmatory model antrum amount and its range way. To injection mould, plastic make a precision be 3 class and 3a class, weight is 5 grams, use sclerotic gating system, model antrum number takes 4-6; Plastic make for general precision (4-5 class) , it is local crystallization material into profile makings, model antrum number is desirable 16-20; Plastic make a weight be 12-16 gram, model antrum number takes 8-12; And what weight overcomes for 50-100 is plastic make, model antrum number takes 4-8. Plastic to unformed make number of a proposal antrum be 24-48, 16-32 with 6-10. Should continue to increase again plastic when making a weight, use much antrum pattern rarely. Of 7-9 class precision plastic make, most model antrum number comes than the plastic grow in quantity of the 4-5 class precision that point out 50% . 2.

Define cent area. The position of cent face should be helpful for mould treatment, exhaust, drawing of patterns and shape operation, plastic make exterior quality. 3.

Definite gating system (advocate the appearance of runner, cent runner and runner, position, size) with exhaust system (position of the method of exhaust, air discharge duct, size) . 4.

Choice top gives way (canal of ejector pin, top, ejector plate, combined-type top goes out) , decision side is sunken the processing technique, means that smoke core. 5.

Decision refrigeration, heat means and heat the installation place of the appearance of cooling groove, position, heating element. 6.

Be calculated according to mould material, intensity or experience data, determine ply of mould spare parts and over all dimension, appearance structure and all join, fixed position, oriented a position. 7.

Basically shape certainly spare parts, the configuration of structural member. 8.

Consideration mould is departmental the intensity of cent, computation shapes measure of spare parts work. Above if these problems were solved, the configuration nature of the mould was solved. At this moment, should begin draft of scale mould structure, make good preparation for formal plot. 4, requirement of scale mould intent allows scale according to national cartography mark, but the factory that also asks to combine this factory standard and country to did not set is used to brushwork. Before picture mould general assembly pursues, should scale process chart, want to accord with the demand that makes a graph and craft material. By the dimension that next line working procedure assure, should write in the mark on the graph make clear model of written characters of " of " technology measure. If shape hind besides repair burr besides, or else undertakes other machining, so process chart with make a plan identical. Best below process chart line out makes scale of shrinkage of a number, name, material, material, plot wait. Draw process chart on graph of mould general assembly normally. 1.

Graph of general assembly of scale of plan of structure of scale general assembly uses as far as possible 1: The scale of 1, first by model antrum begins scale, advocate view and other view are drawn at the same time. 5, graph of mould general assembly should include the following content: 1.

The mould shapes partial structure 　 2.

The configuration of system of gating system, exhaust. 3.

Cent face and cent model take a kind. 4.

Appearance structure and all join, fixed position, oriented the position. 5.

Tag model antrum height dimension (do not importune, the basis needs) reach a mould total size. 6.

Auxiliary tool (take a discharge model tool, corrective tool) . 7.

Make up by serial number of ordinal will entire part piece, and fill write list. 8.

Tag technical requirement and service instruction. 6, the technical requirement content that mould general assembly pursues: 1.

The function of certain to the mould system asks. The assembly that takes core structure to carrying a system, slide block on the head for example asks. 2.

Assemble the requirement of craft to the mould. For example the joint clearance of the joint face of the cent after the mould is assembled face should not is more than 0.

On 05mm mould, the parallelism requirement below, point out by what assemble a decision dimension is mixed the requirement of pair of this dimension. 3.

The mould is used, outfit tear open a method. 4.

Number of antirust processing, mould, carve characters on a seal, mark, oil seal, custodial wait for a requirement. 5.

About the requirement that tries model and face of check proved recipe. 7, the order that all part drawing tears open picture part drawing by graph of mould general assembly should be scale: First inside hind outside, first complex hind simple, shape first spare parts, hind structural part. 1.

Graphical requirement: Must draw in proportion, allow to magnify or narrow. View choice is logical, umbriferous and correct, decorate proper. Understand to make treatment patent date easy, facilitate assemble, the graph pursues consistent with general assembly as far as possible, the graph wants clarity. 2.

Tag dimension the requirement is unified, concentration, orderly, complete. The order that tags dimension is: First main part dimension mixes mark rake giving a model, tag again coordinate measure, tag full measure next. In be not main part drawing to go up to be tagged first coordinate measure, full measure is tagged after. 3.

Exterior surface roughness. a kind of surface roughness mark with most application at blueprint top right corner, if tag " the others 3.

2. "Symbol of other surface roughness in the spare parts each surface parts line out. 4.

Other content, for example brand of bugle call of plan of spare parts name, mould, material, heat treatment and hardness requirement, specification of the treatment precision of scale of finishing, graph, free dimension, technology should fill in correctly. 8, .

Proofread, careful graph, tracing, send bask in A.

The content that ego proofreads is: 1.

Mould and its spare parts and model the material of the relation mould of blueprint and mould spare parts precision of qualitative, hardness, dimension, the structure whether to accord with model the requirement of blueprint. 2.

Plastic lapping defect of the flow that controls a stuff of stuff of square dough modeling to flow, shrinkage cavity, frit, breach, rake of drawing of patterns whether to affect plastic make the requirement of the respect such as quality of precision of performance characteristics, dimension, surface. Design design has all without exception sufficient, treatment is simple, the shrinkage that expects into profile is chosen correct. 3.

Shape the pressure of equipment respect shot, inject, power that lock up a model is enough, the installation of the mould, plastic make Na Xin, drawing of patterns has without the problem, the nozzle of inject machine and Xiao mouth cover correctly contact. 4.

　 of mould structure respect 1) .

Whether do cent side position and finish machining precision satisfy need, can produce excessive material, whether can after flying a model, assure plastic make stay in the pattern that the top gives unit at the same time. 2) .

Kind of drawing of patterns is right, the size that popularizes lever, ejector sleeve, position, amount is equal, ejector plate can by model core gets stuck, can cause abrade to shape spare parts. 3) .

Mould thermoregulation respect. The power of heater, amount; The position of line of going from place to place of cooling medium, size, amount is equal. 4) .

Processing is plastic make formulate the method with sunken side, take off side sunken orgnaization is appropriate, for example inclined guide pillar smokes the slide block in core orgnaization and push rod to whether be disturbed each other. 5) .

The position of system of pouring, exhaust, size is proper. 5.

Design blueprint 　 1) .

Each mould spare parts finds a place for on assembly drawing place is proper, express whether clearly, have without omit 　 2) .

The spare parts number on part drawing, name, be made inside the amount that make, spare parts or outside buy, it is standard component returns dispute standard component, the spare parts cooperates to handle precision, shape plastic the correction treatment that makes a part of high accuracy dimension and surplus, whether does degree of precision work of the material of mould spare parts, heat treatment, finishing, outside label, it is clear to narrate. 3) .

The part is main spare parts, shape measure of spare parts work and coordinate measure. Size number should be not had correctly by accident, do not make generator conversion. 4) .

Check all part drawing and the view place that general assembly pursues, umbriferous correct, whether does brushwork accord with n/arc drafting GB, have without omit dimension. 6.

　 of function of school nucleus treatment (' of mark of brushwork of the geometrical structure of all spare partses, view, dimension whether be helpful for machining) 　 　 7.

Answer the B of 　 of main job measure that calculates auxiliary tool.

Major proofreads in principle to proofread a project to undertake by architect ego; But principle of structure of overweight wanting side, technical properties and respect of safety in operation. The graph should be digested first when tracing, ask to depict by GB, fill in full measure and technical requirement. After draw from school and sign. C.

Good draw base map hands in an architect to proofread sign, be used to a practice is by the tool personnel of production unit concerned technology is examined, sex of workmanship of countersign, examination, just can send next bask in. D.

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Write workmanship card to make unit technology personnel write workmanship card by the tool, and be treatment make ready-made. Should strengthen in the production process of mould spare parts examine, put examining emphasis on dimension precision. The mould is assembled after finishing, by inspector basis the mould examines the watch undertakes examining, main is to examine the function case of mould spare parts is good, have the production quality of such ability slang moulds only. 9, try a model to although be,reach long model shape in make choice of material, shape when equipment, undertake below the craft condition of expect the mould is designed, but the understanding of people often is not perfect, after because this must be in,mould treatment is finished, undertake the model experiments trying, look those who shape make a quality how. Discovery always is later, undertake those who eliminate wrong sex build a model. Model appear the sort of undesirable phenomenon is in the majority, the matter is very complex also, have the reason of mould respect, also have the reason of craft condition respect, both often is handed in be together only. Before building a model, ought to according to model the actual condition of occurrence undesirable phenomenon, undertake be analyticed meticulously study, find out create model put forward to remedy a method after the reason of blemish. Because shape,the condition is changed easily, so common practice is to be changed first shape condition, shape when change the condition is insoluble when the problem, just consider to repair a mould. Repair a mould more Ying Shen is heavy, not very hold cannot fribble. Once changed mould condition,its reason is, cannot make again be transformed greatly and restorable. 10, after arranging a data to undertake file mould classics experiments, if of short duration is not used, criterion drawing of patterns of should complete erasure is fecal, dirt, smeary wait, the butter on besmear or other and antirust oil or antirust, close to keep the place keeps. Begin design pattern to the mould to machine a success, till certificate of proof, in the technical material that produces during this, for example assignment certificate, make part drawing of graph of a graph, general assembly of technical specification, mould, mould, base map, mould design a manual, examine record sheet, try a model to build a model the record, try by the regulation the system is arranged, bound, number has file. Such doing it seems that very troublesome, but the mould is repaired after be opposite, designing new pattern is very useful point. CNC Milling