CN209439385U

CN209439385U - A kind of sand mold of revolution solid of curved surface

Info

Publication number: CN209439385U
Application number: CN201822097235.3U
Authority: CN
Inventors: 暴赵鸿
Original assignee: HUAIHAI INDUSTRIAL GROUP Co Ltd
Current assignee: HUAIHAI INDUSTRIAL GROUP Co Ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2019-09-27
Anticipated expiration: 2028-12-13

Abstract

The utility model relates to a kind of sand mold of revolution solid of curved surface, which includes mold and sand core (4)；The mold includes template (1), 6 apperances (2) and sprue (3)；6 apperances (2) are fixed on template (1), and sprue (3) is fixed on the center of template 1；Sand core is trident shell structure, sand core center is sprue mouth, 6 fork end faces of sand core (4) are provided with cross gate mouth, the sprue mouth of sand core (4) is docked with the oral area of the sprue of mold (3) downwards, and 6 cross gate mouths of sand core (4) dock one by one with the apperance sprue channel open on 6 apperances (2).The utility model solves the problems, such as location technology of the sand core on mold, realizes high-precision, high efficiency and high quality, has good practicability and generalization.

Description

A kind of sand mold of revolution solid of curved surface

Technical field

The utility model belongs to hot-working casting technology field, and in particular to a kind of sand mold of revolution solid of curved surface.

Background technique

In foundry technology process, after the completion of sand mold (casting mold) manufacture, sand mold inner cavity wants assembled portion to make in advance Sand core 4, assembly position location and precision of the sand core 4 in sand mold inner cavity are low, then are difficult to reach production engineering specifications, and sand core Assembly time length, inefficiency.

Utility model content

The purpose of the utility model is to provide a kind of sand molds of revolution solid of curved surface, solve positioning skill of the sand core on mold Art problem realizes high-precision, high efficiency and high quality, has good practicability and generalization.

The technical solution of the utility model is, a kind of sand mold of revolution solid of curved surface includes mold and sand core；The mold packet Include template, 6 apperances and sprue；6 apperances are fixed in template, and are uniformly distributed relative to template, and sprue is fixed on On the center of template 1；Sand core is trident shell structure, and each fork is there are two fork, and sand core center is sprue mouth, sand core 6 fork end faces are provided with cross gate mouth, and apperance sprue channel open is provided in apperance, and the sprue mouth of sand core is straight with mold downwards The oral area of running channel docks, and 6 cross gate mouths of sand core dock one by one with the apperance sprue channel open in 6 apperances.

6 apperances are circumferentially uniformly distributed relative to template.

The sand core includes upper sand core and lower sand core, and upper sand core and lower sand core are trident shell structure, and upper sand core is under Sand core is trident shell structure, and upper sand core and lower sand core make-up form sand core, and lower sand core center is sprue mouth.

6 fork end faces of sand core are curved surface arc, and apperance sprue channel open in the curved surface arc of 6 fork end faces and apperance The peripheral curve arc at place is identical.

The utility model has the beneficial effects that the utility model is positioning sand of the sand core on surface rotation mould Type, localization method is ingenious, easy to operate, accurate positioning and precision are high, position is unique, simplifies mould structure and makes sand mold work Skill, primary demoulding are completed, improve and make sand mold efficiency；The utility model positioning accuracy is high, easy to operate, sends out in process of production Important function is waved, suitable for forming the cross gate of casting mold.

Detailed description of the invention

Fig. 1 is a kind of sand mould structure schematic diagram of revolution solid of curved surface of the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is a kind of sand mold schematic perspective view of revolution solid of curved surface of the utility model；

Fig. 4 is the structural schematic diagram of mold in the utility model；

Fig. 5 is the structural schematic diagram of apperance in the utility model；

Fig. 6 is the structural schematic diagram of upper sand core in the utility model；

Fig. 7 is the rearview of Fig. 6；

Fig. 8 is the structural schematic diagram of lower sand core in the utility model；

Fig. 9 is the rearview of Fig. 8；

Figure 10 is the structural schematic diagram of sand core in the utility model.

Specific embodiment

The technical solution of the utility model is described in further detail with reference to the accompanying drawings of the specification.

As shown in Figure 1, Figure 2 and Figure 3, a kind of sand mold of revolution solid of curved surface of the utility model includes mold and sand core 4.

Mold includes template 1, multiple apperances and sprue 3, the structure of apperance with by the structure phase of casting revolution solid of curved surface Together.Multiple apperances 2 are fixed in template 1, and the circumferential direction relative to template 1 is uniformly distributed, i.e., with φ 350mm circle in template 1 Centered on the heart, two apperances, 2 centers and the center of circle φ 350mm be uniformly distributed in 60 angles.Sprue 3 is fixed on the center of template 1 On, i.e., on the center of circle of φ 350mm.

Sand core 4 is made in advance, and sand core 4 includes upper sand core and lower sand core, and upper sand core and lower sand core are trident shell Body structure, three forks are circumferentially evenly arranged.There are two forks for each fork.Lower sand core center is sprue mouth, and upper sand core is under Sand core make-up forms sand core 4, and the intracavity space of sand core 4 is cross gate.6 fork end faces of sand core 4 are provided with through-hole, and through-hole is Cross gate mouth.Apperance sprue channel open is provided in apperance 2.6 fork end faces of sand core 4 are curved surface arc, and curved surface arc and mould Peripheral curve arc on sample 2 at apperance sprue channel open is identical, i.e., apperance sprue channel open is in the small end of apperance down at 60mm.

When assembly positioning, the sprue mouth of sand core 4 is docked with the oral area of the sprue of mold 3 downwards, determines that center is fixed Position.Sand core 4 moves vertically downward, until 6 fork end faces of sand core 4 are in close contact with the outer arcuate curved surface of 6 apperances 2 respectively And coincide, the small end of 6 fork end face curved surface arcs and apperance 2 coincides at 60mm down, i.e. the 6 of sand core 4 cross gate mouth It is docked one by one with the apperance sprue channel open in 6 apperances 2.

Apperance 2 in the utility model uses 6.

When making sand mold, sandbox is covered on mold, at this moment sand core 4 has been imbedded in sand mold by back-up sand vanning, when demoulding, Sand core 4 is deviate from sand mold, is formed with the sand mold after assembly sand core 4.

Since 4 surface of sand core is all arc-shaped curved surface, after molding sand all buries sand core 4, by vibration, molding sand can be flowed to not Same position, 4 outer surface of sand core can be in close contact with molding sand, will not there is voids left.

Claims

1. a kind of sand mold of revolution solid of curved surface, it is characterized in that: the sand mold includes mold and sand core (4)；The mold includes template (1), 6 apperances (2) and sprue (3)；6 apperances (2) are fixed on template (1), and sprue (3) is fixed on template (1) On center；Sand core (4) is trident shell structure, and each fork is there are two fork, and sand core (4) center is sprue mouth, sand core (4) 6 fork end faces are provided with cross gate mouth, are provided with apperance sprue channel open in apperance (2), and the sprue mouth of sand core (4) is downwards and mould The oral area of the sprue (3) of tool docks, and the apperance sprue channel open one on 6 cross gate mouths of sand core (4) and 6 apperances (2) is a pair of It connects.

2. a kind of sand mold of revolution solid of curved surface described in accordance with the claim 1, it is characterised in that: 6 apperances (2) are relative to template (1) circumferential to be uniformly distributed.

3. a kind of sand mold of revolution solid of curved surface described in accordance with the claim 1, it is characterised in that: the sand core (4) includes upper sand Core and lower sand core, upper sand core and lower sand core are trident shell structure, and upper sand core and lower sand core make-up form sand core (4), lower sand Core center is sprue mouth.

4. a kind of sand mold of revolution solid of curved surface described in accordance with the claim 1, it is characterised in that: 6 fork end faces of sand core (4) For curved surface arc, and the curved surface arc of 6 fork end faces is identical as the peripheral curve arc at apperance sprue channel open on apperance (2).