TV standardized mold design plastic knobs

TV plastic knobs standardized mold design , it was the plastic knobs called TV 's "eyes ", which is a grain of truth . Because of a beautiful and reasonable plastic knob on the TV appearance does play a finishing touch, this is the plastic knobs mold design elements .
Naturally, the amount of mold manufacturing plastic knobs is also great, I plant about a quarter of the total number of plastic mold . Plastic knobs These mold design , because neither the standard mold , and no uniform structure, so even though there are many similar shape knob , but its structure is different mold . Some of the same type knob mold , its structure is actually up six to seven kinds . This gives the mold parts processing, production scheduling and other aspects of the mold assembly brought a lot of inconvenience. Even some mold parts because no mature process technology and scrapped several times , not only a waste of human and material resources , but also to extend the mold manufacturing cycle .
Thus, in this type of mold design, mold plastic knobs with standard and uniform structure, strengthen the standardization of design work is imperative . In plastic mold design, plastic parts and technical requirements is to determine the shape of the mold structure forms an important basis , so we start with the shape of the product categories to proceed . In my plant one hundred kinds of different specifications of the knob in the shape similar to the knobs were grouped into nine categories. In plastic mold design, plastic parts and technical requirements is to determine the shape of the mold structure forms an important basis , so we start with the shape of the product categories to proceed . In my plant one hundred kinds of different specifications of the knob in the shape similar to the knobs were grouped into nine categories. Then, to fully meet the technical requirements of the premise, according to the mold using the same kind of mold plastic knobs these possibilities into A, AH, A particular , AY ' four groups. b, ' is a straight -A Group A standard mold mold all kinds of knobs . For the introduction of point AY / type standard mold of A 1 ' group knob molds. a, b,. Plastic knobs for the introduction of direct AX AX- type standard mold mold set all kinds of knobs . So different weeks of being made ​​worse because of the system , reducing the surface of rectangular type of mold is not a big enough racks without a doubt only a simplified top model has a unified design machine meter structure mold , mold under should use its position , some quasi- regulatory model in the mold frame grid electricity in large mining machine with the same kind as the spin class rotary die Niu Niu standard mold rack up intercede standard button type for a spin in order to determine the class knob mold standard structure , the use of standardized designs. We must also analyze and compare these differences , straight AH -type standard mold mold plastic knobs of the same type , core mounted on the upper mold , mold after molding of plastic parts from the top mast out this form , while desirable , but the lack of versatility.
After molding plastic parts , is from the bottom of the three ( or more ) out of the top peak of the staff . Type of product parts are also subject to restrictions , the lack of versatility. Generally speaking, after the injection molding of plastic knobs , plastic shrinkage resulting package tight forces are concentrated on the core , but with the top tube just so that the top output concentrated in the largest local release resistance . In particular, the product requires a release gradient core made ​​small , even in the case where no release gradient , can be smoothly top of the product . This form of the class of the knob of the mold can apply. Knob standardized mold design not only for the class mold design, manufacturing brings convenience , more importantly, effectively promoted the same type of knob product design series. The knob series of products and semi-finished products for mold parts created conditions . Parts shown in Figure 4 is a wide variety of applications knob parts, plastic knobs are a certain size ( according to its mating potentiometer depending shank dimension series , other sizes are based on their aesthetic product designers and assembly need to be raised no uniform requirement , which gives another piece of semi-finished mold brings difficulties.
Therefore, to meet and assemble plastic knobs appearance requirements under the premise , its size must have a series. As shown in the "H" has a series, we can according to this range of sizes , bark plate made of the semi-finished products ha . dxl cavity is generally used cold extrusion or electroforming , and if there is a dimension d series, and a and b have a uniform requirement , we can put cold extrusion punch or electric foundry cores prepared in advance . h there is a certain size , we can put a core made ​​of semi-finished plastic knobs . d: and d: there is a constant relationship, we are used to manufacture molded pipe jacking . At present, the size of the plastic knob design series being developed , completion of this work , bound for mold manufacturing plastic knobs to open a new situation.