A low-pressure casting aluminum alloy wheel mold that is easy to mold and demolds without deformation
A casting mold and aluminum alloy technology, which is applied in the field of low-pressure casting, can solve the problems of large deformation, small spoke or rim angle, and insufficient milling and bright surface processing, so as to reduce scrap, improve overall yield, and improve production efficiency Effect
Active Publication Date: 2022-05-17
QINHUANGDAO XINGLONG WHEEL HUB
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Problems solved by technology
However, such products bring great difficulties to the casting process. The angle of the spokes or rims is small, and it is very difficult to remove the mold during the die-casting process. At present, the effective way to solve the difficulty of mold removal is to increase the underdrawing at the inner rim The structure of mold lifting, although this method can successfully lift the mold, but the fatal disadvantage is that the deformation of the product is large when it is ejected, which will bury hidden dangers for the next process, especially the milling process, resulting in insufficient milling or milling. The length of the surface is different, etc., which greatly reduces the production efficiency and the pass rate of the product
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[0013] specific implementation plan
[0014] Below in conjunction with accompanying drawing, the present invention will be further described:
[0015] like figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, an aluminum alloy wheel casting mold that is easy to mold and demolds without deformation includes a top mold 2, a bottom mold 2, a side mold 3, an oblique core 6, a dovetail wedge 5, a connecting rod 8, a suspension pin 13, an upper Position block 7, lower limit block 4, guide sleeve 10, ejector plate 11, locking block 12, ejector 14, angle adjuster 21, center ejector rod 15 and wheel rim ejector rod 16, top mold 2 consists of top mold Insert 17, top mold body 18 and inclined core 6 are formed, and top mold insert 17 and top mold body 18 are assembled without relative movement, but can move horizontally with inclined core 6.
[0016] The lower end of the top mold insert 17 is evenly provided with 20-24 insert bosses 20 with a width of 5mm-8mm, and one side of ea...
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The invention discloses an aluminum alloy wheel casting mold which is easy to be molded and demolded without deformation. The top mold of the aluminum alloy casting mold which is easy to be molded and demolded without deformation is provided with an oblique core. The top mold, side mold, and bottom mold together form the casting cavity. When the aluminum liquid is filling the mold, the inclined core forms the casting blank and forms an inverted draft structure at the position of the rim. The effect of the core makes the holding force of the top mold greater than that of the bottom mold, which is beneficial to mold removal. When the casting is demolded, due to the joint coordination of the ejector and the die-casting machine and the secondary demoulding process, the wheel is easily separated from the top mold. The patent of the invention solves the problem of small window draft angle and deep rim wheel shape. Difficulty in the mold, demoulding and deformation problems increase the yield of subsequent machining processes, especially milling processes.
Description
technical field [0001] The invention belongs to the field of low-pressure casting, and in particular relates to a low-pressure casting aluminum alloy wheel mold which is anti-deformation and easy to demould. Background technique [0002] Many aluminum alloy wheels now have a spoke angle of 7°, and some products with deep rims have an angle of less than 7°. The purpose of this design is that the overall effect of the spokes is simple and atmospheric and the three-dimensional effect is strong. Such wheels are very popular in the European market. However, such products bring great difficulties to the casting process. The angle of the spokes or rims is small, and it is very difficult to remove the mold during the die-casting process. At present, the effective way to solve the difficulty of mold removal is to increase the underdrawing at the inner rim The structure of mold lifting, although this method can successfully lift the mold, but the fatal disadvantage is that the deforma...
Claims
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IPC IPC(8): B22D18/04
CPCB22D18/04
Inventor 赵丽红刘建芳王一林张殿杰
Owner QINHUANGDAO XINGLONG WHEEL HUB