For the suspension bridge type hot-extrusion mold of high cantilever section bar
Technical field
The utility model relates to a kind of aluminium section hot-extrusion die, especially a kind of suspension bridge type hot-extrusion mold for high cantilever section bar.
Background technology
Along with aluminum profile hot-extrusion product is more and more ripe in the industry, the application of product is more and more extensive, more and more great cantilever mould can be used for some special dimensions, for some tongues, than the mould below 5 times, we can adopt false mold cores to solve, and for 5 times even more than 10 times tongue ratios mould we also can only with spelling mouth formula or the mould that tears skin formula solves, but no matter be spell mouth formula or tear skin formula all mouth place squeezed in existence or tear in skin place product after extrusion jagged, be unfavorable for surface smoothness, but in fact, more and more higher along with requiring, there is increasing client because surperficial burr problem is returned goods.If directly make plane mould, so fall the end widely die life, the product of one kilogram, the mould even had also be can not make, so this type of mould is also the short slab of the industry always.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of suspension bridge type hot-extrusion mold for high cantilever section bar, normally can produce, and solve problem die life under the prerequisite not affecting surface.
According to the technical scheme that the utility model provides, a kind of suspension bridge type hot-extrusion mold for high cantilever section bar, comprises die face, and die face is provided with nib, discharging opening, great cantilever and little cantilever, and described nib is communicated with discharging opening; It is characterized in that: the feed end of described great cantilever is provided with the suspension bridge protruding from die face.
Described suspension bridge comprises suspension bridge body and suspension bridge connector.
Described suspension bridge body is fixed on the feed end of great cantilever by suspension bridge connector.
The utility model has the following advantages:
feed end place directly can solve cantilever place strength problem after increasing suspension bridge, does not worry cantilever deflection or stays;
owing to not using traditional spelling mouth formula or tearing skin formula, solve burr problem completely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As Figure 1-Figure 2: the described suspension bridge type hot-extrusion mold for high cantilever section bar comprises die face 1, nib 2, discharging opening 3, great cantilever 4, suspension bridge 5, suspension bridge body 5-1, suspension bridge connector 5-2, little cantilever 6 etc.
As shown in Figure 1, the utility model comprises die face 1, and die face 1 is provided with nib 2, discharging opening 3, great cantilever 4 and little cantilever 6, and described nib 2 is communicated with discharging opening 3; The feed end of described great cantilever 4 is provided with the suspension bridge 5 protruding from die face 1.As shown in Figure 2, suspension bridge 5 comprises suspension bridge body 5-1 and suspension bridge connector 5-2, and suspension bridge body 5-1 is fixed on the feed end of great cantilever 4 by suspension bridge connector 5-2.
Operation principle of the present utility model and the course of work: as Figure 1-Figure 2, a kind ofly be applicable to the hot extrusion aluminium section die of high cantilever tongue than multiple, owing to adopting suspension bridge type design at cantilever mould tongue feed end place, apply the heavy bridge of common divergent die again, fall the means such as bridge, not only can solve bridge lower impressions feed but also can well solve cantilever place mould tongue beat, stay or rupture.For the mold classification of the industry short slab, Vehicles Collected from Market can be applicable to well.