CN217290297U - Support sand mould gravity mould - Google Patents

Abstract

The utility model discloses a support sand mould gravity mould, including last case, one side block of going up the case is connected with the nowel, the lower surface of going up the case and the upper surface of nowel all are provided with the die cavity, the top of going up case and nowel all is provided with external pouring basin, coincide each other between external pouring basin, the bottom of external pouring basin runs through in the top of last case and nowel to the pouring basin is connected in the die cavity. This support sand mould gravity mould, chill through setting up, install the chill because of the position that corresponds at the important position in shaft hole like this, it does not produce the shrinkage cavity to have guaranteed the shaft hole position like this, defects such as shrinkage porosity, make important position defect level up to standard, and because of the collection cinder ladle that sets up all scribbles alcohol with adsorption magnet's surface, can effectually prevent the foundry goods sand sticking like this, improve foundry goods surface finish, simultaneously through enlarging the collection cinder ladle, optimize to the side rising head, not only have the sediment efficiency of collection, more compromise the feeding to the foundry goods flange.

Description

Support sand mould gravity mould

Technical Field

The utility model relates to a relevant technical field of sand mould gravity mould specifically is a support sand mould gravity mould.

Background

With the continuous maturity of aluminum alloy technology, the aluminum alloy is gradually applied to the fields of electric power systems, transportation, aerospace and the like, is rapidly developed, and is more widely applied. The aluminum alloy bracket of the power system is a widely applied product, is mainly used for power switch components and needs certain strength.

Along with the miniaturized trend of switch, neotype three linkage support, the shape is more complicated, the quality volume is bigger, important position quantity such as bearing hole increases in the foundry goods, makes its casting degree of difficulty greatly increased, and the shaping is difficult, and important position can't guarantee that the quality is up to standard, and sand casting generally adopts from top to bottom to divide the mould, does with resin sand with die cavity and the back of the gating system well, upper and lower compound die, pours the melt into, and the cooling back divides the mould, takes out the foundry goods. However, the uncontrollable factors of general sand casting are more, the casting precision is poor, the defects of air holes, sand holes, shakeout and the like are easily generated, the quality of a precision part cannot be ensured, and a large casting is generally poured by adopting a sand mold at low pressure, so that a support sand mold gravity mold is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a support sand mould gravity mould, with solve the present trend along with the switch is miniaturized among the above-mentioned background art, neotype three linkage supports, the shape is more complicated, the quality volume is bigger, important position increase in quantity such as bearing hole in the foundry goods, make its casting degree of difficulty greatly increased, the shaping difficulty, important position can't guarantee that the quality is up to standard, the sand casting divides the mould from top to bottom generally adopts, do well the back with die cavity and the gating system with the resin sand, the compound die from top to bottom, pour the melt into, divide the mould after the cooling, take out the foundry goods. But the common sand casting has more uncontrollable factors, poor casting precision, easy generation of defects such as air holes, sand holes, shakeout and the like, and can not ensure the quality of precision parts, and large castings generally adopt sand mold low-pressure pouring.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a support sand mould gravity mould, includes the upper box, one side block of upper box is connected with the nowel, the lower surface of upper box and the upper surface of nowel all are provided with the die cavity, the top of upper box and nowel all is provided with external pouring basin, coincide each other between external pouring basin, the bottom of external pouring basin runs through in the top of upper box and nowel to be connected in the pouring basin in the die cavity, pouring basin sets up the inside at upper box and nowel respectively in the die cavity, pouring basin all is connected with watering in the die cavity, the inside of upper box and nowel is provided with a plurality of foundry goods shaft holes, chill is all installed to foundry goods shaft hole department, be provided with the scum collection package between watering and the die cavity, the bottom of scum collection package is connected with the filter screen, the internally mounted of nowel has the psammitolite.

Preferably, positioning grooves are formed in two corners inside the bottom end of the upper box and one corner on the right side of the top end of the upper box, and adsorption magnets are installed inside the positioning grooves.

Preferably, the lateral wall of nowel is provided with the boss with positioning groove looks adaptation, the inside of boss all is provided with adsorbs the iron prop.

Preferably, the lower box is connected with the upper box in a clamping mode through a boss, and the adsorption magnets and the adsorption iron columns are adsorbed mutually.

Preferably, the two sides of the upper box and the lower box are respectively provided with two hanging rods, the two hanging rods are internally provided with buckles, and the buckles are fixedly connected with the hanging rods through bolt rods.

Preferably, the external pouring cup and the pouring cup in the cavity are both arranged in a conical structure, and the pouring gate is arranged in an S-shaped structure.

Preferably, the slag collecting bag is of a cylindrical structure, and alcohol is smeared on the surfaces of the sand core and the adsorption magnet.

Compared with the prior art, the beneficial effects of the utility model are that:

this support sand mould gravity mould, chill through setting up, install the chill because of the position that corresponds at the important position in shaft hole like this, it does not produce the shrinkage cavity to have guaranteed the shaft hole position like this, defects such as shrinkage porosity, make important position defect level up to standard, and because of the collection cinder ladle that sets up all scribbles alcohol with adsorption magnet's surface, can effectually prevent the foundry goods sand sticking like this, improve foundry goods surface finish, simultaneously through enlarging the collection cinder ladle, optimize to the side rising head, not only have the sediment efficiency of collection, more compromise the feeding to the foundry goods flange.

This support sand mould gravity mould is connected through positioning groove and the mutual block of boss to adsorption magnet adsorbs each other with the absorption iron prop, possible quick accurate location, effectively avoids the foundry goods size error because of the mould assembling causes.

This support sand mould gravity mould sets up for "S" type structure because of watering, makes the device like this water and compare than traditional watering, guarantees effectual buffering aluminium liquid to effectual pushing off the slag has improved the practicality and the convenience of device like this, simultaneously because the foundry goods height is high, and weight is big, and the demand melt is more, rolls up gas easily during the pouring, forms oxidation impurity and gets into the foundry goods, reduces the foundry goods performance, forms the defect at some positions. The external sprue cup effectively solves the problem, the sprue can be kept full during pouring, the impact of sprue molten liquid during pouring is reduced, air entrainment is avoided, and a casting is molded smoothly.

Drawings

Fig. 1 is a schematic view of the vertical structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the upper box of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the lower box of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a gravity die for a support sand mold comprises an upper box 1, a lower box 2 is connected to one side of the upper box 1 in a clamping mode, cavities are formed in the lower surface of the upper box 1 and the upper surface of the lower box 2, external sprue cups 10 are arranged at the top ends of the upper box 1 and the lower box 2 and are matched with each other, the bottom ends of the external sprue cups 10 penetrate through the top ends of the upper box 1 and the lower box 2 and are connected with sprue cups 11 in the cavities, the sprue cups 11 in the cavities are respectively arranged in the upper box 1 and the lower box 2, the sprue cups 11 in the cavities are connected with runners 12, a plurality of casting shaft holes are formed in the upper box 1 and the lower box 2, chilling blocks 13 are arranged at the casting shaft holes, slag collecting ladles 14 are arranged between the runners 12 and the cavities, a filter screen 15 is connected to the bottom ends of the slag collecting ladles 14, sand cores 16 are arranged in the lower box 2, and chilled blocks 13 are arranged through the set, and accordingly chilling blocks 13 are arranged at positions corresponding to important parts of the shaft holes, therefore, the defects of shrinkage cavity, shrinkage porosity and the like of the shaft hole part are effectively avoided, and the defect grade of the important part reaches the standard.

In another embodiment, two inside angles in bottom and a top right side angle department of last case 1 have all seted up positioning groove 3, and adsorption magnet 4 is all installed to positioning groove 3's inside, realizes fixing a position fast through the positioning groove 3 that sets up. The lateral wall of nowel 2 is provided with the boss 5 with 3 looks adaptations of positioning groove, and the inside of boss 5 all is provided with adsorbs iron prop 6, realizes quick location through the boss 5 that sets up. Lower case 2 is connected through boss 5 and 1 block of last case, and adsorption magnet 4 adsorbs each other with adsorption iron post 6, is connected through positioning groove 3 and 5 mutual blocks of boss to adsorption magnet 4 adsorbs each other with adsorption iron post 6, can accomplish quick accurate location, effectively avoids because of the foundry goods size error that the mould assembling caused. The both sides of upper box 1 and lower box 2 all are provided with two jibs 7, and buckle 8 is all installed to the inside of two jibs 7, and buckle 8 all is through shank of bolt 9 and jib 7 fixed connection, through the jib 7 that sets up, like this in the course of working because foundry goods weight is big, through the portal crane, with the chain catch sand box both sides jib 7, manual alignment, through accurate mould assembling of unsmooth location, the pouring is stood immediately to the sand box after the mould assembling.

In another embodiment, external pouring basin 10 and in-cavity pouring basin 11 are the toper structure setting, water 12 and set up for "S" type structure, because of watering 12 and set up for "S" type structure, make the device water 12 like this and water 12 than traditional, guarantee effectual buffering aluminium liquid, and effectual pushing off the slag, the practicality and the convenience of having improved the device like this, simultaneously because the foundry goods is high, heavy, the demand melt is more, easy gassing during the pouring, form oxidation impurity and get into the foundry goods, reduce the foundry goods performance, form defect in some positions. The external pouring cup 10 effectively solves the problem, the pouring gate 12 can be kept full during pouring, the impact of the sprue molten liquid during pouring 12 is reduced, the air entrainment is avoided, and the casting is molded smoothly. The slag collection bag 14 is arranged in a cylindrical structure, alcohol is coated on the surfaces of the sand core 16 and the adsorption magnet 4, and the alcohol is coated on the surfaces of the slag collection bag 14 and the adsorption magnet 4, so that sand sticking of a casting can be effectively prevented, the surface finish of the casting is improved, and meanwhile, the slag collection bag 14 is enlarged to be optimized as a side riser, so that the slag collection effect is achieved, and feeding to a casting flange is considered.

The working principle of the present disclosure is as follows: for the bracket sand mold gravity mold, firstly, an upper box 1 and a lower box 2 are horizontally molded through a manufactured wood mold, the position of a casting needing rapid cooling is embedded into a chill 13 in advance, then a boss 5 in the upper box 1 is positioned and embedded into an adsorption iron column 6, an adsorption magnet 4 is embedded into the bottom of a positioning groove 3 of the lower box 2, meanwhile, furan resin sand is adopted for molding, after the sand mold is solidified, alcohol paint is brushed on the surface and the surface of a sand core 16 to prevent the casting from being stuck with sand, the surface smoothness of the casting is improved, the manufactured sand core 16 is placed in, then a hanger rod 7 is arranged, so that in the processing process, because the weight of the casting is large, a lock chain is hung on hanger rods 7 at two sides of a sand box through a gantry crane, manual alignment is carried out, accurate box closing is carried out through concave-convex positioning, the sand box is erected for pouring, a manufactured external pouring cup 10 is well aligned with a pouring cup 11 in a small-opening conical cavity for well fixing, and (3) pouring molten aluminum when the molten aluminum is ready for pouring, pouring molten metal from the external pouring cup 10, keeping the pouring gate 12 full of molten metal during pouring, finally pointing a riser, and taking out the casting after the casting is cooled, so that the support sand mold gravity mold is used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a support sand mould gravity mould, includes the case, its characterized in that: the improved pouring box comprises an upper box, a lower box, a cavity, external pouring cups, a plurality of casting shaft holes, a filter screen and sand cores, wherein the lower surface of the upper box and the upper surface of the lower box are respectively provided with a cavity, the top ends of the upper box and the lower box are respectively provided with the external pouring cups, the external pouring cups are mutually matched, the bottom ends of the external pouring cups penetrate through the top ends of the upper box and the lower box and are connected with the pouring cups in the cavity, the pouring cups in the cavity are respectively arranged in the upper box and the lower box, the pouring cups in the cavity are respectively connected with the pouring gate, the inner parts of the upper box and the lower box are provided with the plurality of casting shaft holes, the chilling blocks are respectively arranged at the positions of the casting shaft holes, the slag collecting bag is arranged between the pouring gate and the cavity, the bottom end of the slag collecting bag is connected with the filter screen, and the sand cores are arranged in the lower box.

2. The support sand mold gravity die according to claim 1, characterized in that: go up the inside two angles in bottom and a top right side angle department of case and all seted up positioning groove, positioning groove's inside all installs adsorption magnet.

3. The support sand mold gravity die according to claim 2, characterized in that: the lateral wall of nowel is provided with the boss with positioning groove looks adaptation, the inside of boss all is provided with adsorbs the iron prop.

4. The support sand mold gravity die according to claim 3, characterized in that: the lower box is connected with the upper box in a clamping mode through a boss, and the adsorption magnet and the adsorption iron column are adsorbed mutually.

5. The support sand mold gravity die according to claim 1, characterized in that: the both sides of going up case and nowel all are provided with two jibs, two the buckle is all installed to the inside of jib, the buckle all passes through shank of bolt and jib fixed connection.

6. The support sand mold gravity die according to claim 1, characterized in that: the external pouring cup and the pouring cup in the cavity are both arranged in a conical structure, and the pouring gate is arranged in an S-shaped structure.

7. The support sand mold gravity die according to claim 1, characterized in that: the slag collecting bag is of a cylindrical structure, and alcohol is coated on the surfaces of the sand core and the adsorption magnet.

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