CN2302072Y

CN2302072Y - Light alloy low casting pressure forming apparatus

Info

Publication number: CN2302072Y
Application number: CN 97215824
Authority: CN
Inventors: 林煜昆
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-28
Filing date: 1997-05-28
Publication date: 1998-12-30
Anticipated expiration: 2007-05-28

Abstract

The utility model relates to a casting device, which can solve quality problems. The utility model comprises a casting machine, a pressure complement device, a mould and a die cavity, wherein, the casing machine comprises a first machine table plate, a second machine table plate and guide rods; the first machine table plate is parallel to the second machine table plate; the guide rods are penetrated into the second machine table plate in a slip form; the guide rods are mutually parallel; definite distance is extended between the guide rod and the corresponding end of the second machine table plate in a mutual vertical form; the end part of the guide rod is fixed with a fixing plate; the center of the fixing plate is provided with a hole; the mould is fixedly arranged between the fixing plate and the first machine table plate; the both sides of the mould are respectively provided with a first side fixing plate and a second side fixing plate; the fixing plate and the hole of the fixing plate are provided with ling pressure devices through the guide rods. The utility model is used for casting light alloy pieces.

Description

Light-alloy hangs down the casting pressure shaped device

The utility model relates to the compression casting shaped device, refers in particular to light metal alloy compression casting shaped device.

The low casting pressure shaped device of existing light-alloy, shown in Fig. 6～9: patrix 2, counterdie 3 are individually fixed on the upper mould fixed plate and following machine bench of casting machine 1, two

side forms

4,5 are fixed in respectively on the both sides sliding formwork fixed head of casting machine 1 accordingly, utilize oil pressure that patrix 2, counterdie 3 and

side form

4,5 mutual driving fits are become the die cavity body; The end face of driving fit is provided with a die cavity 6, die cavity 6 sides and middle position are established some rising head 6a, the volume shrinkage mass that produces when utilizing the ccontaining alloy liquation of rising head 6a to replenish alloy graining in the die cavity 6, and be provided with a protuberance 4c in the side of two side forms, 4,5 mutual driving fits, so that a running channel 4a is set, make running channel 4a extend upward the end face of two

side forms

4,5 to form a casting gate 4b, to fill mold cave 6.But because of protuberance 4c both sides lack support, when producing thermal deformation, the alloy liquation is often by outside the depanning of distortion place seepage, be located at the side of die cavity again because of rising head and running channel, when liquation is gone into mould from top to bottom, produce acceleration of gravity, make die cavity and rising head corner angle be subjected to erosion and mould is damaged and the normal volume gas phenomenon that produces.So that castability is difficult to guarantee.

The purpose of this utility model provides the low casting pressure shaped device of a kind of light-alloy that casting quality is guaranteed.

The purpose of this utility model is achieved in that light-alloy hangs down the casting pressure shaped device, and it comprises: casting machine, ftercompction device, mould and die cavity; Casting machine has first machine bench parallel to each other, second machine bench and the sliding guide rod that is through at second machine bench and is parallel to each other; Guide rod extends a distance mutual vertically and establishes a fixed head in its end with the corresponding end face of second machine bench, there is a hole in fixed head central authorities, mould is packed between the fixed head and first board, its both sides are first, second side fixed head, it is characterized in that: be provided with the ftercompction device by guide rod, fixed head and hole thereof; This ftercompction device includes oil hydraulic cylinder, ftercompction bar, plate body and ftercompction plate; The ftercompction bar is located on the ftercompction plate, and plate body is located on the guide rod, is oil hydraulic cylinder therebetween.

Above-mentioned design, by the drive of the oil hydraulic cylinder of casting machine, the fixed head and first machine bench and first, second side fixed head do near or away from action, make mould open/close; The ftercompction device carries out ftercompction by the hole of fixed head central authorities to die cavity, reaches to make the foundry goods coagulating tissue dense the effect that casting quality is guaranteed.

Below by drawings and Examples the utility model is described further again.

The whole main schematic diagram of looking of Fig. 1 the utility model;

Fig. 2 the utility model die cavity configuration schematic diagram;

The schematic diagram of Fig. 3 the utility model casting gate;

Fig. 4 the utility model ftercompction device schematic diagram;

Fig. 5 is the enlarged diagram of A among Fig. 4;

Fig. 6～9 are the low casting pressure shaped device schematic diagram of existing light-alloy.

Shown in Fig. 1,2,4,5: the utility model comprises casting machine 10, ftercompction device 20, mould 30 and die cavity 40; Casting machine has first machine bench 11 parallel to each other, second machine bench 12 and the sliding guide rod 13 that is through at second machine bench 12 and is parallel to each other; Guide rod and the corresponding end face of second machine bench 12 extend a distance mutual vertically and establish a fixed head 14 in its end, there is a hole 141 in fixed head 14 central authorities, mould 30 is packed between the fixed head 14 and first machine bench 11, its both sides are first, second side fixed

head

15,16, it is characterized in that: be provided with ftercompction device 20 by guide rod 13, fixed head 14 and hole 141 thereof; This ftercompction device 20 includes oil hydraulic cylinder 21, ftercompction bar 22, plate body 23 and ftercompction plate 24; Ftercompction bar 22 is located at ftercompction plate 24, and plate body 23 is located at guide rod 113, is oil hydraulic cylinder 21 therebetween.By the drive of the oil hydraulic cylinder 21 of casting machine 10, the fixed head 14 and first machine bench 11 and first, second side fixed

head

15,16 do near or away from action, make mould 30 foldings; Ftercompction device 20 is by the hole 141 of fixed head 14 central authorities, die cavity 40 is carried out ftercompction, wherein, the mode that the upper end of ftercompction plate 24 and mould 30 is parallel to each other be fixedly arranged on oil hydraulic cylinder 21 do the moved end and with oil hydraulic cylinder 21 make the moved end interlock, wherein, ftercompction bar 22 be corresponding setting with the hole 35 of mould 30, and the one end is inserted in the hole 35 slidably, and aligning die cavity 40.In order to maybe need being improved the casting strength place, the local thicker part of foundry goods gives ftercompction.Oil hydraulic cylinder 21 can be established maximum 140 kilograms of/centimeter pressure, depends on the needs, and makes alloy liquation 50 fill up die cavity 40, till casting solidification is shaped.Ftercompction time and pressure change on alloy temperature and the foundry goods shape is decided.

As shown in Figure 3: wherein, mould 30 comprises that two

moulds

31,32 and two

side forms

33,34 and a correspondence are divided into the die cavity 40 of these two

moulds

31,32 and two side forms, 33,34 mutual driving fit end faces; And one be connected with this die cavity 40 with an end, and the other end extends upward the running channel 41 of these two side forms, 33,34 end faces; Running channel 41 with the casting gate 42 that is higher than die cavity 40 is the L shape, and the one end is flatly and is connected with die cavity 40 bottom water flush ends 411, and the other end extends upward the end face vertical end 412 of two

side forms

33,34; And be provided with dashpot 43.Dashpot 43 is with buffering alloy liquation downward impulsive force, and by the bottom of die cavity 40 filling liquation step by step upwards, avoids erosion and volume gas.Wherein, two

side forms

33,34 are arranged at the lateral surface of running channel 41, respectively by first, second side fixed

head

15,16 to the inside corresponding tilt of two side forms, 33,34 driving fit end faces, and form inclined plane 331,341.In a word, the utility model makes the dense matter height of foundry goods; Can reduce molding time, raise the efficiency; Can reduce the rising head volume, save cost; Particularly reduce, avoided phenomenons such as erosion, volume gas so that solution leak.

Claims

1, the low casting pressure shaped device of light-alloy, it comprises: casting machine, ftercompction device, mould and die cavity; Casting machine has first machine bench parallel to each other, second machine bench and the sliding guide rod that is through at second machine bench and is parallel to each other; Guide rod extends a distance mutual vertically and establishes a fixed head in its end with the corresponding end face of second machine bench, there is a hole in fixed head central authorities, mould is packed between the fixed head and first board, its both sides are first, second side fixed head, it is characterized in that: be provided with the ftercompction device by guide rod, fixed head and hole thereof; This ftercompction device includes oil hydraulic cylinder, ftercompction bar, plate body and ftercompction plate; The ftercompction bar is located on the ftercompction plate, and plate body is located on the guide rod, is oil hydraulic cylinder therebetween.

2, the low casting pressure shaped device of light-alloy as claimed in claim 1 is characterized in that: wherein, the mode that the upper end of ftercompction plate and mould is parallel to each other be fixedly arranged on oil hydraulic cylinder do the moved end and with oil hydraulic cylinder make the moved end interlock.

3, the low casting pressure shaped device of light-alloy as claimed in claim 1, it is characterized in that: wherein, the hole of ftercompction bar and mould is corresponding setting, and the one end is inserted in the hole slidably, and the aligning die cavity.

4, the low casting pressure shaped device of light-alloy as claimed in claim 1, it is characterized in that: wherein, mould comprises that two moulds and two side forms and a correspondence are divided into the die cavity of these two moulds and the mutual driving fit end face of two side forms; And one be connected with this die cavity with an end, and the other end extends upward the running channel of this two side forms end face; Running channel with the casting gate that is higher than die cavity is the L shape, and the one end is flatly and is connected with die cavity bottom water flush end, and the other end extends upward the end face vertical end of two side forms, and is provided with dashpot.

5, the low casting pressure shaped device of light-alloy as claimed in claim 1, it is characterized in that: wherein, two side forms are arranged at the lateral surface of running channel, respectively by first, second side fixed head to the inside corresponding tilt of two side form driving fit end faces, and form the inclined plane.