A kind of block mould structure
Technical field
The utility model relates to the technical field of die apparatus, specifically a kind of block mould structure for automobile absorber parts.
Background technology
In prior art, during cast article component, first aluminium liquid is poured in the cavity of casting mold, to be cooled solidify after can obtain solid-state foundry goods.The quality of mold die to product has a significant impact, when especially adopting sub-module design, with die joint in casting mold, easy generation mould shift defect, if foundry goods is also with pore structure, because core used by needs, more easily produce shape and size deviation, affect the form accuracy of casting mold, thus have influence on the quality of product, such as application number is " CN200810306740.2 ", name is called the application documents of " the broken material moulded production technology of a kind of bamboo for packaging material and for hot-forming mould ", describe " the broken material moulded production technology of a kind of bamboo for packaging material and mould thereof, wherein production technology to be included in hot-forming process and can repeatedly to poke the skinning of slab by one or many, gas in slab is progressively overflowed, mould, comprise the ejector pin mechanism be arranged on counterdie, ejector pin mechanism comprises thimble, pushing block, operating mechanism, counterdie is provided with the through hole that one or more are vertical with mould land area, one piece of thimble is vertically set in each through hole, pushing block is arranged on immediately below thimble and close neighbour is arranged, and operating mechanism consists of the slippage up and down of pushing block and thimble and links, and thimble has and stretches out through hole and poke the primary importance of slab and the second place of retraction through hole." technique scheme just there is cover half frame and dynamic model frame quality of fit is poor, mould open/close inconvenience, has influence on the problem of product quality then.Simultaneously often there is cover half frame and dynamic model frame quality of fit is poor in the mould of existing flange, mould open/close inconvenience, then the problem of product quality is had influence on, and due to exhaust passage arrange problem, be vented often not smooth, product is made to produce pore, affect product quality, simultaneously existing mould is the setting angle and the precision that often need repeatedly to debug core rod at product in maintenance and assembling, but general core rod is difficult to take off, sometimes the improper core rod that easily causes of mode of taking off weares and teares, and affects the accuracy of manufacture of product.
Utility model content
The purpose of this utility model is the block mould structure providing a kind of improvement, and it is not high that it can overcome mould and die accuracy in prior art, and exhaust is not smooth, and mould is in assembling and the some shortcomings of not easily striking lower mold core when repairing a die.
To achieve these goals, the technical solution of the utility model is: a kind of block mould structure, it mainly comprises cover half frame, dynamic model frame, with the cover half core be located in cover half frame, it is characterized in that: be provided with the moving-mould-core corresponding with cover half core in dynamic model frame, cover half core and moving-mould-core are separately positioned on the centre of cover half frame and dynamic model frame;
The madial wall of cover half frame is provided with a sprue bush, and described sprue bush is connected with cover half core; The madial wall of moving-mould-core is provided with shunting matched with sprue bush, and one end of shunting is connected with a runner, and described runner is arranged in moving-mould-core;
Be provided with four prescription shape cast die cavities in moving-mould-core, each square cast die cavity is connected by auxiliary flow with between runner, and between auxiliary flow and square cast die cavity, shape in an angle, and angle angle is 35-65 degree;
The outside of each cast die cavity is all connected with two groups of cinder ladles, and each cinder ladle is all connected with an air discharge duct, and described air discharge duct stretches out and connects moving-mould-core with dynamic model frame and is connected with the outer wall of dynamic model frame, and each square cast die cavity is connected with a thimble;
Be provided with certain core rod groove in cover half frame, described cover half core groove and the matching size of cover half core close, and are provided with a rapping hole in cover half frame, the described inwall of rapping hole cover half core groove and the inwall distance 3-8mm of cover half core groove.
During use, aluminium liquid pours in sprue bush, through shunting, four prescription shape casting mold cavities are flowed into after runner and auxiliary flow, because runner is that funnel-form increase pressure makes aluminium liquid flow at high speed, just can filling casting mold cavity in the extremely short time, cast out high-quality product, be arranged on air discharge duct and the cinder ladle in the outside of cast die cavity, make exhaust more effective, reduce the pore of product, improve the quality of mould, the fine positioning groove of lower flange die cavity surrounding and fine positioning projection make the location between cover half frame and dynamic model frame more accurate, substantially increase the product size precision of die casting.Be located at the rapping hole in cover half frame, can conveniently strike lower cover half core at die assembly or when repairing a die.Simultaneously between auxiliary flow and square cast die cavity, shape is in an angle, auxiliary flow and square cast die cavity are provided with the groove of a scroll in junction, auxiliary flow is skewed distribution, these are arranged so that aluminium liquid again increases pressure at this and goes out at a high speed, make aluminium liquid filling die cavity in very short time, cast out the product of high-quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model cover half frame.
Fig. 2 is the structural representation of the utility model dynamic model frame.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Label in each accompanying drawing is expressed as follows: 1 cover half frame, 2 guide pillars, 3 rapping holes, 4 cooling water channels, 5 sprue bush, 6 cover half cores, 7 guide pin bushings, 8 release links, 9 fine positioning projections, 10 moving-mould-cores, 11 cinder ladles, 12 thimbles, 13 air discharge ducts, 14 runners, 15 shunting, 16 dynamic model frames, 17 mould pin, 18 bumping posts, 19 auxiliary flows.
A kind of block mould structure described in the utility model, it mainly comprises cover half frame, dynamic model frame, with the cover half core be located in cover half frame, its difference with the prior art is: be provided with the moving-mould-core corresponding with cover half core in dynamic model frame, and cover half core and moving-mould-core are separately positioned on the centre of cover half frame and dynamic model frame; The madial wall of cover half frame is provided with a sprue bush, and described sprue bush is connected with cover half core; The madial wall of moving-mould-core is provided with shunting matched with sprue bush, and one end of shunting is connected with a runner, and described runner is arranged in moving-mould-core; Four prescription shape cast die cavities are provided with in moving-mould-core, each square cast die cavity is connected by auxiliary flow with between runner, between auxiliary flow and square cast die cavity, shape in an angle, angle angle is 35-65 degree, this angle is more conducive to aluminium liquid flow direction cast die cavity at a high speed, makes aluminium liquid whole cast die cavity of Fast Filling within 0.2-0.5 second; The outside of each cast die cavity is all connected with two groups of cinder ladles, each cinder ladle is all connected with an air discharge duct, described air discharge duct stretches out and connects moving-mould-core with dynamic model frame and to be connected with the outer wall of dynamic model frame, air discharge duct and cinder ladle be arranged so that exhaust is more effective, reduce product air holes, improve the quality of products, each square cast die cavity is connected with a thimble, its effect is after mould pushing-off mechanism, helps ejecting product after die sinking; Be provided with certain core rod groove in cover half frame, described cover half core groove and the matching size of cover half core close, and are provided with a rapping hole in cover half frame, the described inwall of rapping hole cover half core groove and the inwall distance 3-8mm of cover half core groove.
Two connected outer side edges of square cast die cavity are connected to a cinder ladle, and the described cinder ladle degree of depth is greater than the degree of depth of square cast die cavity.Four prescription shape cast die cavities divide the both sides being located at runner between two, auxiliary flow and square cast die cavity are provided with the groove of a scroll in junction, scroll groove is herein for isolating cast die cavity and auxiliary flow, aluminium liquid is made again to increase pressure at this and go out at a high speed, make aluminium liquid filling die cavity in very short time, cast out the product of high-quality, auxiliary flow is skewed distribution, the cast interface end that the position of the runner interface end that auxiliary flow contacts with runner contacts with square cast die cavity higher than auxiliary flow.
Cover half frame is evenly distributed with four guide pillars, described guide pillar divides the surrounding being located at cover half frame working face; Dynamic model frame is provided with the guide pin bushing matched with guide pillar.Four drift angle places of dynamic model frame are respectively equipped with a fine positioning projection, and four drift angle places of cover half core working face are provided with the fine positioning groove matched with fine positioning projection, and the height of described fine positioning projection is 4-10mm.A release link on fine positioning projection, described release link has four, and be evenly arranged on four drift angle places of moving-mould-core, release link can help ejecting mechanism to reset in advance, is unlikely to the core damaging mould.
The middle part of cover half core is provided with two cooling water channels, described cooling water channel totally two, and two cooling water channels arranged side by side run through whole cover half core, and cooling water channel, in order to control the temperature of mould, makes mould keep temperature required, extends the mold use life-span simultaneously.The bottom of dynamic model frame is provided with one group of mould pin, and the side of mould pin is provided with one group of bumping post, and its purposes is the plane of placing at mould, protection water pipe.The through whole cover half frame of rapping hole, one end contacts with the outer surface of cover half frame, the other end contacts with cover half core, the aperture, one end that rapping hole contacts with cover half frame outer surface is greater than the aperture that the other end contacts with cover half core, rapping hole is arranged on cover half core groove top 1/3rd place, and rapping hole can conveniently strike lower cover half core at die assembly or when repairing a die.
In force, cover half frame, dynamic model frame is fixed on die casting machine, wherein dynamic model frame can slide accurately, be located at the guide pillar on cover half frame and be located at the folding of the guide pin bushing on dynamic model frame to mould and play guide effect, aluminium liquid pours in sprue bush, through shunting, four prescription shape casting mold cavities are flowed into after runner and auxiliary flow, because runner is that funnel-form increase pressure makes aluminium liquid flow at high speed, just can filling casting mold cavity in the extremely short time, cast out high-quality product, be arranged on air discharge duct and the cinder ladle in the outside of cast die cavity, make exhaust more effective, reduce the pore of product, improve the quality of mould, the fine positioning groove of lower flange die cavity surrounding and fine positioning projection make the location between cover half frame and dynamic model frame more accurate, substantially increase the product size precision of die casting.Be located at the rapping hole in cover half frame, can conveniently strike lower cover half core at die assembly or when repairing a die.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that the utility model is specifically implemented to be confined to these explanations above-mentioned.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.