Filtering type is subcontracted
Technical field
The present invention relates to the technical field that wheel manufactures, is that a kind of filtering type is subcontracted specifically.
Background technology
In aluminum-alloy wheel manufacture process, need to use low pressure subcontract, of the prior art subcontracting comprises clad, inclusion, bag mouth and screen pack; Wherein inclusion is the main body that filtering type is subcontracted, and inclusion inside forms the space of hollow, the sidewall that bag mouth is arranged on inclusion is communicated with the inner space of inclusion, the inwall of inclusion and bag mouth is arranged the cast bed of material.Traditional low pressure subcontracts bag mouth in the transhipment of aluminium liquid, filling, scale removal process, easily the cast bed of material of bag mouth is caused to break because inevitably colliding with, bringing in aluminium liquid to the castable of bag mouth during holding furnace filling aluminium liquid, aluminium liquid is polluted, reduces aluminium liquid quality.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of filtering type and subcontracts.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
Filtering type of the present invention is subcontracted, and comprises clad, inclusion, bag mouth and screen pack; Wherein inclusion is the main body that filtering type is subcontracted, and inclusion inside forms the space of hollow, the inwall of inclusion is arranged the cast bed of material; Clad is arranged on the top of inclusion, and is flexibly connected with inclusion; Bag mouth is arranged on the sidewall of inclusion, and is communicated with the space in inclusion; Screen pack is arranged on bag mouth one end away from inclusion.
The present invention can also adopt following technical measures:
Bag mouth arranges protective sleeve away from inclusion one end; Protective sleeve is arranged between screen pack and bag mouth.
Protective sleeve is that ceramic material is made.
Protective sleeve is that heat resisting steel material is made.
Between screen pack and protective sleeve, gasket seal is set, fastening by pulling buckle between screen pack and bag mouth.
Between clad and inclusion, spring assembly is set.
The advantage that the present invention has and good effect are:
During filtering type of the present invention is subcontracted; bag mouth arranges protective sleeve away from one end of inclusion; use protective sleeve can prevent from bag mouth inwall is arranged the cast bed of material cracked and come off, thus avoid in production process and be mixed in the middle of aluminium liquid because colliding the castable caused, prevent aluminium liquid from being polluted.Arranging screen pack in one end of bag mouth can by other impurity filtering in aluminium liquid, to improve the quality of aluminium alloy castings.Screen pack and protective sleeve can be easy for installation and removal, and can renew at any time, and the structure that filtering type of the present invention is subcontracted is simple, easy to produce and use, uses middle safety and stability.
Accompanying drawing explanation
Fig. 1 is the structural representation that filtering type of the present invention is subcontracted;
Fig. 2 is the partial enlarged drawing that filtering type of the present invention subcontracts middle protective sleeve position;
Fig. 3 is the profile that filtering type of the present invention subcontracts middle protective sleeve.
Detailed description of the invention
Below by way of the drawings and specific embodiments, the technical scheme in the present invention is described in detail:
As shown in Figure 1 to Figure 3, filtering type of the present invention is subcontracted, and comprises clad 1, inclusion 2, bag mouth 3 and screen pack 4; Wherein inclusion is the main body that filtering type is subcontracted, and inclusion inside forms the space of hollow, the inwall of inclusion is arranged the cast bed of material 5; Clad is arranged on the top of inclusion, and is flexibly connected with inclusion; Bag mouth is arranged on the sidewall of inclusion, and is communicated with the space in inclusion; Screen pack is arranged on bag mouth one end away from inclusion.
Bag mouth arranges protective sleeve 6 away from inclusion one end; Protective sleeve is arranged between screen pack and bag mouth, and protective sleeve is fastened and fixed on bag mouth by screen pack, and the inlet of protective sleeve is up big and down small funnel shaped, so that aluminium liquid injects.
Protective sleeve is that ceramic material or heat resisting steel material are made, and namely ensure that the heat resistance of protective sleeve, and prevent it when injecting aluminium liquid because thermal expansion is broken, also ensure that the intensity of protective sleeve self, making it can not be chipping owing to colliding with.
Gasket seal 10 is set between screen pack and protective sleeve, leaks when annotating again to prevent high temperature aluminum liquid, fastening by pulling buckle 7 between screen pack and bag mouth, thus can change protective sleeve and screen pack easily.
Arrange spring assembly 8 between clad and inclusion, the two ends of spring assembly act on inclusion and clad respectively, thus clad can be made automatically to open relative to inclusion.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention with preferred embodiment openly as above, but, and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.