CN207103790U - The die casting of service life length - Google Patents

Abstract

The utility model discloses a kind of die casting of service life length, and the die casting of the service life length includes depression bar, upper mould, butterfly spring, guide pin bushing, drift, lower mould, pressing plate.The utility model provides a kind of die casting of service life length, has the quality of die casting good, mold use long lifespan, saves maintenance time and maintenance cost.

Description

The die casting of service life length

Technical field

It the utility model is related to a kind of die casting of service life length.

Background technology

For large mold due to the difference of material technology etc., its thermal coefficient of expansion is also different, die-cast product in the fabrication process, High temperature, high pressure and die clearance are the crucial parameters of comparison, and these parameters not only influence the crudy of product, meanwhile, Influence the mold use life-span.Inventor has found under study for action, during heavy castings die casting of the prior art, using Standard Module The mould of gap manufacture, locking phenomenon or molten metal expulsion events often occur for mould in press casting procedure, have a strong impact on life Production.

Utility model content

The purpose of this utility model is to provide a kind of die casting of service life length, has that the quality of die casting is good, Mold use long lifespan, saves maintenance time and maintenance cost.

The technical solution of the utility model is：A kind of die casting of service life length, the die casting of the service life length Mould includes depression bar, upper mould, butterfly spring, guide pin bushing, drift, lower mould, pressing plate, and the depression bar runs through the upper mould simultaneously by through hole It is connected with the drift, the butterfly spring is mounted on the drift, and the upper mould is consolidated by the guide pin bushing and the lower mould Fixed connection, the lower mould are fixed together by tapped through hole and the pressing plate, and the length of the butterfly spring is 10cm.

In one preferred embodiment of the utility model, the number of the tapped through hole is 2.

In one preferred embodiment of the utility model, the number of the guide pin bushing is 2.

A kind of die casting of service life length of the present utility model, the quality with die casting is good, the mold use longevity Life length, saves maintenance time and maintenance cost.

Brief description of the drawings

Accompanying drawing 1 is the dimensional structure diagram of the preferred embodiment of die casting one of the utility model service life length.

The mark of each part is as follows in accompanying drawing：1st, depression bar, 2, upper mould, 3, butterfly spring, 4, guide pin bushing, 5, drift, 6, lower mould, 7th, pressing plate.

Embodiment

Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model Define.

Referring to Fig. 1, Fig. 1 is a kind of die casting of service life length of the utility model, the pressure of the service life length Casting mould includes depression bar 1, upper mould 2, butterfly spring 3, guide pin bushing 4, drift 5, lower mould 6, pressing plate 7, and the depression bar 1 is run through by through hole The upper mould 2 is simultaneously connected with the drift 5, and the butterfly spring 3 is mounted on the drift 5, and the upper mould 2 is led by described Set 4 is fixedly connected with the lower mould 6, and the lower mould 6 is fixed together by tapped through hole and the pressing plate 7, the butterfly-type bullet The length of spring is 10cm, and the number of the tapped through hole is 2, and the number of the guide pin bushing is 2.

Job step is as follows：Close up mould；Molten metal is poured into pressure chamber with artificial or other modes；Upper punch is with relatively low Injection speed moves down, into pressure chamber in and touch molten metal liquid level to rigid connection；Upper punch switchs to higher injection speed and depressed, and under Drift then remains middle one section of relative distance for having molten metal with upper punch and synchronously quickly moved down；When low punch is displaced downwardly to It is just lower to be propped up to bottommost when conceding nozzle orifice；Then, upper and lower drift together extrudes molten metal at a high speed to nozzle Spray in hole；Molten metal is filled into by the sprue being made up of nozzle, sprue bush, the taper hole of cover half and current divider from ingate Enter mold cavity；Filling finishes, but upper punch still keeps certain pressure, until the molten metal in die cavity is completely solidified into die casting Untill part；Molten metal in running channel and pressure chamber is solidified as down gate and clout cake respectively；Upper punch lifting restoring；Meanwhile undershoot Head action upwards, the clout cake being still connected with down gate is cut off；Low punch continues to rise, and clout cake is enumerated pressure chamber top surface, Taken away again with artificial or other modes；Low punch, which moves down to be reset to, blocks nozzle orifice；Open mould, die casting and down gate one With staying on dynamic model, eject immediately and take out die casting；Once after cutting off clout cake, die sinking action can be immediately performed, Can slightly delay to it is appropriate when perform, with low punch complete on lift and reset action it is unrelated；So far, a die casting is completed to follow Ring.The utility model provides a kind of die casting of service life length, and the quality with die casting is good, the mold use life-span It is long, save maintenance time and maintenance cost.

Specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto, it is any to be familiar with Those skilled in the art in the technical scope disclosed by the utility model, can without the change that creative work is expected or Replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be wanted with right The protection domain for asking book to be limited is defined.

Claims (3)

1. A kind of 1. die casting of service life length, it is characterised in that：The die casting of service life length include depression bar, on Mould, butterfly spring, guide pin bushing, drift, lower mould, pressing plate, the depression bar are connected through the upper mould and with the drift by through hole, The butterfly spring is mounted on the drift, and the upper mould is fixedly connected by the guide pin bushing with the lower mould, the lower mould It is fixed together by tapped through hole and the pressing plate, the length of the butterfly spring is 10cm.
2. 2. the die casting of service life length according to claim 1, it is characterised in that：The number of the tapped through hole is 2.
3. 3. the die casting of service life length according to claim 1, it is characterised in that：The number of the guide pin bushing is 2.