CN209006627U - A kind of casting die - Google Patents

Abstract

The utility model discloses a kind of casting die, including upper die and lower die, upper mold connects upper die holder, and lower die bottom end is equipped with lower die holder, and upper mold is equipped with casting gate；Lower die is equipped with casting chamber, in lower die, the sliding chamber of loose piece is equipped with below opposite mold cavity, sliding intracavitary be equipped with of loose piece can be bonded along the loose piece that mould open/close direction is moved, loose piece upper surface with the cavity wall of mold cavity；Loose piece lower end is connected with the mandril that loose piece can be driven reciprocal；Jack end connects mandrel plate；Be additionally provided on mandrel plate through lower die and can along the reset mandril that mould open/close direction is moved, reset mandril front end can in moving process, protrude lower die upper surface.Purpose of the utility model is to solve deficiency in the prior art, a kind of loose piece is provided without departing from lower die, safe operation, a kind of casting die that work efficiency is high.

Description

A kind of casting die

Technical field

The utility model relates to machinery field, in particular to a kind of casting die.

Background technique

It, often need to be in thickness due to the larger easy shrinkage porosite of casting local wall thickness in cast aluminum alloys compressor housings Loose piece is arranged to reach chilling action, to realize the shrinkage porosite phenomenon for eliminating the larger generation of local wall thickness in big position.The prior art is living It is that casting is followed to be carried over together during block pickup, employee needs to take off loose piece from casting, then again fills loose piece Enter in mold, then molds.It since loose piece temperature is higher, is removed in the short time, there are operating difficulties, and working environment is dangerous, easily Worker is caused to scald；Loose piece is fitted into mold after removing loose piece after cooling, it is longer to will lead to the operating time, working efficiency It is low.

Utility model content

The technical problems to be solved in the utility model: purpose of the utility model is to solve it is in the prior art not Foot provides a kind of loose piece without departing from lower die, casting process safe operation, a kind of casting die that work efficiency is high.

The technical solution of the utility model includes: a kind of casting die described in the utility model, including upper die and lower die, it is described Upper mold connects upper die holder, and the lower die bottom end is equipped with lower die holder, and the upper mold is equipped with casting gate；The lower die is equipped with casting Chamber is equipped with the sliding chamber of loose piece, sliding intracavitary be equipped with of the loose piece can be along mould open/close direction in the lower die below opposite mold cavity Mobile loose piece, the loose piece upper surface are bonded with the cavity wall of the mold cavity；The loose piece lower end be connected with can drive it is described The reciprocal mandril of loose piece；The jack end connects mandrel plate；It is additionally provided on the mandrel plate through the lower die and can be along mould The mobile reset mandril in tool folding direction, the reset mandril front end can protrude the lower die upper surface in moving process.

Further, it is additionally provided on the mandrel plate through the lower die and can be along the push piece that mould open/close direction is moved Bar, push piece bar upper surface are bonded with the cavity wall of the mold cavity.

Further, the mandrel plate lower end is additionally provided with fixed plate.

Further, the loose piece two sides are provided with guide ledges, and the loose piece is sliding intracavitary convex equipped with the guiding is matched The slideway of platform.

Further, the loose piece is sliding intracavitary equipped with sealing ring, and the guide ledges are equipped with buffer stopper.

Further, the loose piece is with a thickness of 9mm is more than or equal to, highly for more than or equal to 25mm；The size too small mold longevity Order short, the too big heat dissipation of size is slow, influences chill effect.

Further, the loose piece is threadedly coupled with mandril, and the loose piece bottom is equipped with internal thread hole, the internal thread hole More than or equal to M8, tapping depth is not less than 10mm, and internal screw thread aperture is too small, and the too shallow then intensity of depth is insufficient, and service life is short.

Further, the mandril diameter is more than or equal to Φ 8, material Cr12, SKH51 or SKH55.

Further, the material of the loose piece is H13 or red copper.

The utility model compared with prior art the utility model has the advantages that due to being equipped in loose piece bottom the loose piece can be driven reciprocal Mandril, and jack end is arranged on mandrel plate, when loose piece is taken up with casting, plays position-limiting action, prevents loose piece with casting Part break away from moulds；Meanwhile the mandril of rising has driven mandrel plate rising, while driving the reset mandril being arranged on mandrel plate convex Mould surface is descended out, at this point, only equipment is needed to mold, upper mould, which will push, resets mandril stress in mandrel plate, and mandrel plate drives top Bar glides, and loose piece is returned back to value in situ, this process is not necessarily to human contact's loose piece, and safety and stability, work efficiency is high.

Loose piece is sliding intracavitary equipped with sealing ring is equipped with, and can prevent existing gap between loose piece and the sliding chamber of loose piece, when leading to fluid injection, Liquid flows into the sliding chamber of loose piece, blocking loose piece movement；Equipped with buffer stopper, avoids the guide ledges of loose piece from directly contacting with lower die, keep away Exempt from the gouging abrasion between lower die and loose piece, improves die life.

Detailed description of the invention

Fig. 1 is that the utility model mold removes the body structural schematic diagram after upper die and lower die；

Fig. 2 is the concrete structure schematic diagram of the utility model lower die；

Fig. 3 is the overall structure diagram of the utility model mold；

Fig. 4 is the operation schematic diagram of the utility model loose piece.

Specific embodiment

In order to deepen the understanding of the utility model, below we will the utility model is described in further detail in conjunction with attached drawing, The embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.

As Fig. 1-Fig. 3 shows a kind of embodiment of casting die of the utility model, including upper mold 1 and lower die 2, upper mold 1 connection upper die holder 5,2 bottom end of lower die are equipped with lower die holder 3, and upper mold 1 is equipped with casting gate 12；Upper mold top is equipped in the upper mold 1 Bar 14, upper mold mandril 14 can under the upper mold mandrel plate effect that 1 top of upper mold is set, along mould open/close direction, by casting 9 from It is ejected in upper mold.Lower die 2 is equipped with mold cavity 21, and in lower die 2, the sliding chamber 26 of loose piece, loose piece are equipped with below opposite mold cavity 21 Being equipped in sliding chamber 26 can be bonded along the loose piece 6 that mould open/close direction is moved, 6 upper surface of loose piece with the cavity wall of mold cavity 21；Loose piece 6 Lower end is connected with the mandril 7 that loose piece 6 can be driven reciprocal；7 end of mandril connects mandrel plate 4；It is additionally provided on mandrel plate 4 under running through Mould 2 and can along the reset mandril 29 that mould open/close direction is moved, reset 29 front end of mandril can in moving process, protrude lower die 2 Upper surface.Mandrel plate 4 is equipped with through lower die 2 and can be along the push piece bar 24 that mould open/close direction is moved, 24 upper surface of push piece bar It is bonded with the cavity wall of mold cavity 21；There are also fixed plates 41 for 4 lower end of mandrel plate.6 two sides of loose piece are provided with guide ledges 61, and loose piece is sliding The slideway of matching guide ledges 61 is equipped in chamber 26.It is equipped with sealing ring 22 in the sliding chamber 26 of loose piece, guide ledges 61 are equipped with buffering Block 23.Wherein, 6 optimum thickness of loose piece is more than or equal to 9mm, highly for more than or equal to 25mm.Loose piece 6 is threadedly coupled with mandril 7, 6 bottom of loose piece is equipped with internal thread hole, and internal thread hole is more than or equal to M8, and tapping depth is not less than 10mm.7 diameter of mandril is more than or equal to Φ 8, material Cr12, SKH51 or SKH55；The material of loose piece 6 is H13 or red copper.

Working principle of the utility model is: after mold integrally assembles, sand core is placed on mold cavity 21 by mold die sinking Place, after placing sand core, then molds upper mold 1 and lower die 2.It is poured after molding, is opened after the solidification of casting 9.After die sinking, on Mould mandril 14 releases the casting 9 in upper mold 1, and upper mold 1 is far from lower die 2, and the equipment ejecting mechanism stress of lower die 2 is in fixed plate 41 And mandrel plate 4, mandrel plate 4 pushes entire mandril 7, loose piece 6 and push piece bar 24 to jack up casting, and rises to proper height. Employee is taken out casting using special fixture, is put well.Equipment ejecting mechanism resets, retracts original position, molds, and upper mould 1 pushes 29 stress of mandril is resetted in mandrel plate 4, and mandrel plate 4 pushes 24 slide downward of entire mandril 7, loose piece 6 and push piece bar, until extensive Restore position.

The utility model has the characteristics of loose piece 6 is without departing from, safe operation, work efficiency is high, due in 6 bottom of loose piece Equipped with the mandril 7 that loose piece 6 can be driven reciprocal, and 7 end of mandril is arranged on mandrel plate 4, when loose piece 6 is taken up with casting 9, Position-limiting action is played, prevents loose piece 6 with 9 break away from moulds of casting；Meanwhile the mandril 7 of rising has driven mandrel plate 4 to rise, simultaneously The reset mandril 29 being arranged on mandrel plate 4 is driven to protrude 2 surface of lower die, at this point, only equipment is needed to mold, upper mould 1 will be pushed away In mandrel plate 4, mandrel plate 4 drives mandril 7 to glide, loose piece 6 is returned back to value in situ, this process is not necessarily to dynamic 29 stress of mandril that resets Human contact's loose piece 6, safety and stability, work efficiency is high.

Equipped with sealing ring, when can prevent fluid injection, liquid flows into the sliding chamber of loose piece 6, and blocking loose piece 6 moves；Equipped with buffer stopper, keep away The guide ledges for exempting from loose piece 6 are directly contacted with lower die, avoid the gouging abrasion between lower die and loose piece 6, improve die life.

Above-mentioned specific embodiment only illustrates the technical concept and structure feature of the utility model, it is therefore intended that allow ripe The stakeholder for knowing technique can implement accordingly, but the above content is not intended to limit the protection scope of the utility model, all Any equivalent change or modification made by Spirit Essence according to the utility model, should all fall into the protection scope of the utility model Within.

Claims (9)

1. a kind of casting die, including upper mold (1) and lower die (2), the upper mold (1) connects upper die holder (5), the lower die (2) Bottom end is equipped with lower die holder (3), and the upper mold (1) is equipped with casting gate (12)；The lower die (2) is equipped with mold cavity (21), It is characterized in that: being equipped with loose piece in the lower die (2), below opposite mold cavity (21) and slide chamber (26), the loose piece is sliding chamber (26) Interior be equipped with can be along the loose piece (6) that mould open/close direction is moved, the cavity wall patch of loose piece (6) upper surface and the mold cavity (21) It closes；Loose piece (6) lower end is connected with the mandril (7) that the loose piece (6) can be driven reciprocal；Mandril (7) end connection top Bar plate (4)；It is additionally provided on the mandrel plate (4) through the lower die (2) and can be along the reset mandril that mould open/close direction is moved (29), reset mandril (29) front end can protrude the lower die (2) upper surface in moving process.

2. a kind of casting die according to claim 1, it is characterised in that: be additionally provided on the mandrel plate (4) through institute State lower die (2) and can be along the push piece bar (24) that mould open/close direction is moved, push piece bar (24) upper surface and the mold cavity (21) cavity wall fitting.

3. a kind of casting die according to claim 1, it is characterised in that: mandrel plate (4) lower end is additionally provided with fixation Plate (41).

4. a kind of casting die according to claim 1, it is characterised in that: it is convex that loose piece (6) two sides are provided with guiding Platform (61), the loose piece are equipped with the slideway for matching the guide ledges (61) in sliding chamber (26).

5. a kind of casting die according to claim 4, it is characterised in that: the loose piece is equipped with sealing ring in sliding chamber (26) (22), the guide ledges (61) are equipped with buffer stopper (23).

6. a kind of casting die according to claim 1, it is characterised in that: the loose piece (6) is with a thickness of being more than or equal to 9mm, highly for more than or equal to 25mm.

7. a kind of casting die according to claim 1, it is characterised in that: the loose piece (6) and mandril (7) screw thread connect It connects, loose piece (6) bottom is equipped with internal thread hole, and the internal thread hole is more than or equal to M8, and tapping depth is not less than 10mm.

8. a kind of casting die according to claim 1, it is characterised in that: mandril (7) diameter is more than or equal to Φ 8, Its material is Cr12, SKH51 or SKH55.

9. any a kind of casting die in -8 according to claim 1, it is characterised in that: the material of the loose piece (6) is H13 or red copper.