CN213645794U

CN213645794U - Molding flask

Info

Publication number: CN213645794U
Application number: CN202022541406.4U
Authority: CN
Inventors: 李军; 任国娟; 夏志祥; 周明山; 吴军辉; 蔺大鹏
Original assignee: Nantong Guosheng Machine Tool Components Co ltd
Current assignee: Nantong Guosheng Machine Tool Components Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-09
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a sand box along with type comprises last mould and lower mould, goes up the inside vacuole formation of mould and lower mould equipment back, set up the psammitolite in the cavity, through pour metal liquid in the psammitolite, obtain required foundry goods, it all comprises outline, interior frame, reinforcing plate, fixed plate, fly leaf, bottom plate to go up mould and lower mould, interior frame is equipped with a plurality ofly, a plurality of interior frame welding at the outline inner wall, the bottom plate sets up the shape bottom that encloses at interior frame and outline, and the reinforcing plate welding is between outline and interior frame, the inner wall of frame including the fixed plate welding, the fly leaf is installed on the fixed plate of two symmetric distributions to be connected with the bottom plate. The utility model discloses when can realizing the foundry goods casting of large-scale complex construction, the sand box inner structure reaches the optimization, and the sand iron quantity obviously reduces to reduction in production cost guarantees the foundry goods simultaneously when the casting, improves the gas permeability of psammitolite through the bleeder vent, improves the foundry goods quality.

Description

Molding flask

Technical Field

The utility model belongs to pour the field, concretely relates to molding flask along with.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally referred to as machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

However, in the machine tool, when large parts are cast, such as castings of machine beds, columns and the like, the shapes of the castings are various, but for a long time, due to the limitation of the production quantity and the manufacturing cost of special sand boxes, the casting production process of the castings widely uses a plurality of layers of stacked universal sand boxes. When the universal sand box is used, because the sizes of all parts of a casting are different from the sizes of the universal sand box, when the casting is placed in the sand box for filling sand, the sand filling amount in the universal sand box corresponding to the part with a small size is large, the local sand filling amount is large, and the sand amount at the periphery and the corners of the sand box is wasted most seriously, so that the sand using amount in the process of quicksand molding is increased greatly, the production cost and the quicksand molding time are increased firstly, and the box-pressing and cooling time of the casting is prolonged secondly. Therefore, the sand-iron ratio of the cast production is always high, and although the sand-iron ratio is reduced by arranging a corner cutting box belt, changing a sand bed laying mode, reducing a sand wall and the like in the production and manufacturing process of enterprises, the enterprises still have a large descending space. Particularly, the production cost of the castings is reduced under the environment that the profit spaces of the castings are increasingly compressed, and the compression production period becomes urgent.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at solving the defects in the prior art, providing a molding flask, solving the problems.

The technical scheme is as follows: the utility model relates to a molding flask, which consists of an upper die and a lower die, wherein the upper die and the lower die are assembled to form a cavity inside, a sand core is arranged in the cavity, and a required casting is obtained by pouring metal liquid in the sand core, the upper die and the lower die are both composed of an outer frame, an inner frame, a reinforcing plate, a fixed plate, a movable plate and a bottom plate, a plurality of inner frames are arranged in the cavity, the inner frames are welded on the inner wall of the outer frame, so that the inner frames and the outer frame are enclosed to form a shape the same as the contour shape of the casting, the shape and the size enclosed by the inner frames and the outer frame are larger than the size of the contour shape of the casting, the distance between the inner frames and the outer frame and the nearest contour edge of the casting is the same, a plurality of air vents are uniformly arranged on the side wall of the shape enclosed by the inner frames and the outer frame, the bottom plate is arranged at, the reinforcing plate welding is between outline and interior frame, the inner wall of frame including the fixed plate welding, fixed plate symmetric distribution are on the interior frame of last mould and lower mould, the fly leaf is installed on the fixed plate of two symmetric distributions to be connected with the bottom plate, the bottom plate is the grid plate, is formed by a plurality of horizontal connection steel sheets and the welding of vertical connecting steel sheet.

Furthermore, the reinforcing plate is provided with a through hole.

Furthermore, the reinforcing plates are symmetrically distributed between the gaps between the inner frame and the outer frame.

Furthermore, a plurality of fastening lugs and lifting lugs are further arranged on the upper die and the lower die, the fastening lugs are welded on the outer walls of the outer frame and the inner frame, and the lifting lugs are welded on the outer walls of the outer frame.

Furthermore, a plurality of fastening lugs are symmetrically distributed on the outer walls of the outer frame and the inner frame.

Furthermore, the upper die and the lower die are locked with fastening lugs at corresponding positions of the upper die and the lower die through bolts to be matched.

Furthermore, the fastening ear comprises two triangular vertical plates and a base with a U-shaped opening, the two triangular vertical plates are welded on two sides of the base, the fastening ear is welded on the outer frame and the inner frame to enable the U-shaped opening of the base with the U-shaped opening to face outwards, and the two triangular vertical plates and the base are both welded on the outer walls of the outer frame and the inner frame.

Furthermore, the outer frame is composed of a channel steel and a plurality of reinforcing rib plates welded in the channel steel, and the plurality of reinforcing rib plates are welded in grooves of the channel steel, so that three sides of each reinforcing rib plate are welded in the channel steel.

Furthermore, the reinforcing rib plates on the outer frame are symmetrically arranged in the channel steel along the center of the outer frame in the axial direction.

Furthermore, waist-shaped holes are formed in the movable plate and the fixed plate, and the movable plate is fixed on the fixed plate and the bottom plate through bolts.

Has the advantages that: the utility model relates to a molding flask, when can realize the casting of large-scale complicated structure's foundry goods, the interior structure of flask reaches the optimization, the sand iron quantity obviously reduces, thereby reduction in production cost, improve production efficiency and production productivity, guarantee simultaneously that the foundry goods improves the gas permeability of psammitolite through the bleeder vent when casting, and interior frame and outline enclose to be the same with the foundry goods profile shape, the shape size that interior frame and outline enclose is greater than with the size of the profile shape of foundry goods, and make interior frame and outline apart from nearest distance of shaping foundry goods profile edge the same, guarantee that the heat dissipation pin ways around the foundry goods after pouring is unanimous, improve the quality of product shaping, through setting up the through-hole in the reinforcing plate, can be when the psammitolite high temperature during pouring, interior frame and reinforcing plate expand, cause the deformation, influence foundry goods shaping quality, can further absorb improvement thermal diffusivity and shock attenuation, the movable plate and the fixed plate are arranged to lengthen or shorten the sand box, so that parts with different lengths can be manufactured conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a schematic perspective view of a lower mold;

FIG. 3 is a schematic top view of the lower mold;

FIG. 4 is a schematic structural diagram of a fixing plate;

FIG. 5 is a schematic structural diagram of the movable plate;

FIG. 6 is a schematic structural view of a reinforcing plate;

1. an upper die; 2. a lower die; 3. an outer frame; 4. an inner frame; 5. a reinforcing plate; 6. a fixing plate; 7. a movable plate; 8. a base plate; 9. a vent hole; 10. fastening the ears; 11. lifting lugs; 12. and (4) a vent hole.

Detailed Description

The molding flask as shown in fig. 1-6 is composed of an upper mold 1 and a lower mold 2, wherein the upper mold 1 and the lower mold 2 are assembled to form a cavity, a sand core is arranged in the cavity, and a desired casting is obtained by pouring a metal liquid in the sand core, the upper mold 1 and the lower mold 2 are both composed of an outer frame 3, an inner frame 4, a plurality of reinforcing plates 5, a fixing plate 6, a movable plate 7 and a bottom plate 8, the inner frame 4 is provided, the inner frame 4 is welded on the inner wall of the outer frame 3, so that the inner frame 4 and the outer frame 3 surround the same shape as the contour of the casting, the size of the inner frame 4 and the outer frame 3 surround the same size as the contour of the casting, the distance between the inner frame 4 and the outer frame 3 and the nearest contour of the casting is the same, a plurality of vent holes 129 are uniformly provided on the side wall of the shape surrounded by the inner frame 4 and the outer frame 3, the bottom plate 8 is arranged at the bottom of a shape formed by enclosing the inner frame 4 and the outer frame 3, the reinforcing plate 5 is welded between the outer frame 3 and the inner frame 4, the fixed plate 6 is welded on the inner wall of the inner frame 4, the fixed plates 6 are symmetrically distributed on the inner frames 4 of the upper die 1 and the lower die 2, the movable plate 7 is installed on the two symmetrically distributed fixed plates 6 and connected with the bottom plate 8, the bottom plate 8 is a grid plate and is formed by welding a plurality of horizontal connecting steel plates and vertical connecting steel plates, the dead weight is reduced through the grid plate, the heat dissipation is improved, the quality is ensured, and meanwhile, the sand core is convenient to dismantle in the later period; the size of the sand box is adjusted by arranging the installation positions of the movable plate 7 and the fixed plate 6, so that parts with different lengths can be manufactured conveniently.

The utility model discloses it is further, be equipped with the through-hole on the reinforcing plate 5, border 4 and the 5 inflation of reinforcing plate in can the psammitolite high temperature the time when pouring, and outline 3 is indeformable, causes to carry out extrusion deformation to the psammitolite, influences foundry goods shaping quality, can also further absorb improvement thermal diffusivity and shock attenuation, improvement foundry goods shaping quality.

The utility model discloses it is further, between the clearance between frame 4 and the outline 3 including 5 symmetric distribution of reinforcing plate, reduce the dead weight, improve the support intensity of frame 4 in, guarantee that 4 atress both sides atress of frame are more even in the frame.

The utility model discloses it is further, go up and still be equipped with a plurality of fastening ears 10 and lug 11 on mould 1 and the lower mould 2, it is a plurality of fastening ear 10 welding on the outer wall of outline 3 and interior border 4, a plurality of lug 11 welding on the outer wall of outline 3, conveniently lift by crane through setting up lug 11, make the sand box transport more convenient.

The utility model discloses it is further, a plurality of on the outer wall of fastening ear 10 symmetric distribution outline 3 and interior frame 4.

The utility model discloses it is further, go up mould 1 and lower mould 2 and pass through the fastening ear 10 that bolt locking goes up mould 1 and lower mould 2 corresponding position, carry out the compound die, it is more convenient to make its installation through the cooperation between fastening ear 10 and the bolt, all is equipped with fastening ear 10 on frame 4 and outline 3 including simultaneously, improves the closure force between the upper and lower mould 2, leads to because of the thermal expansion when preventing to pour, goes up and down mould 2 and throw off, causes the product to scrap.

The utility model discloses it is further, fastening ear 10 comprises two triangle-shaped risers and a base that has U type opening, two triangle-shaped riser welding are in the base both sides, and the welding of fastening ear 10 makes the U type opening of the base of U type opening outwards on outline 3 and interior frame 4, makes two triangle-shaped risers and base all weld on the outer wall of outline 3 and interior frame 4, reduces the dead weight, improves its atress intensity.

The utility model discloses it is further, outline 3 comprises channel-section steel and a plurality of deep floor of welding in the channel-section steel, and is a plurality of deep floor welding in the recess of channel-section steel, make deep floor's trilateral all welding in the channel-section steel, reduce the dead weight, improve its atress intensity.

The utility model discloses a further, deep floor symmetry on outline 3 sets up along outline 3's center to the symmetry setting in the channel-section steel, and the back psammitolite is pour in the border 4 inflation back outline 3 the same to the holding power of border 4, makes its atress more even, improves the quality after the product shaping.

The utility model discloses it is further, be equipped with waist type hole on fly leaf 7 and the fixed plate 6, fix fly leaf 7 on fixed plate 6 and bottom plate 8 through the bolt, it is fixed conveniently through bolted connection.

All parts involved in this application are metal steel parts to the welding that above-mentioned all adopts two-sided welding, and the contact position between the part must full weld, in order to guarantee the intensity of sandbox.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims

1. A sand-following type sand box is composed of an upper die and a lower die, wherein a cavity is formed in the upper die and the lower die after the upper die and the lower die are assembled, a sand core is arranged in the cavity, and a required casting is obtained by pouring metal liquid in the sand core, and is characterized in that the upper die and the lower die are respectively composed of an outer frame, an inner frame, a reinforcing plate, a fixing plate, a movable plate and a bottom plate, a plurality of inner frames are arranged in the cavity, the inner frames are welded on the inner wall of the outer frame, so that the inner frames and the outer frames surround the shape which is the same as the contour shape of the casting, the shape size surrounded by the inner frames and the outer frames is larger than the size of the contour shape of the casting, the distance between the inner frames and the outer frames and the nearest contour edge of the casting formed by pouring is the same, a plurality of vent holes are uniformly arranged on the side wall of the shape surrounded by the inner, the reinforcing plate welding is between outline and interior frame, the inner wall of frame including the fixed plate welding, fixed plate symmetric distribution are on the interior frame of last mould and lower mould, the fly leaf is installed on the fixed plate of two symmetric distributions to be connected with the bottom plate, the bottom plate is the grid plate, is formed by a plurality of horizontal connection steel sheets and the welding of vertical connecting steel sheet.

2. A drag flask according to claim 1, wherein: the reinforcing plate is provided with a through hole.

3. A drag flask according to claim 2, wherein: the reinforcing plates are symmetrically distributed between the gaps between the inner frame and the outer frame.

4. A drag flask according to claim 1, wherein: the upper die and the lower die are further provided with a plurality of fastening lugs and lifting lugs, the fastening lugs are welded on the outer walls of the outer frame and the inner frame, and the lifting lugs are welded on the outer walls of the outer frame.

5. A drag flask according to claim 4, wherein: the fastening lugs are symmetrically distributed on the outer walls of the outer frame and the inner frame.

6. A drag flask according to claim 5, wherein: the upper die and the lower die are locked by the fastening lugs at the corresponding positions of the upper die and the lower die through bolts to be matched.

7. A drag flask according to claim 6, wherein: the fastening lug is composed of two triangular vertical plates and a base with a U-shaped opening, the two triangular vertical plates are welded on two sides of the base, the fastening lug is welded on the outer frame and the inner frame to enable the U-shaped opening of the base of the U-shaped opening to face outwards, and the two triangular vertical plates and the base are both welded on the outer walls of the outer frame and the inner frame.

8. A drag flask according to claim 1, wherein: the outer frame is composed of a channel steel and a plurality of reinforcing rib plates welded in the channel steel, and the plurality of reinforcing rib plates are welded in grooves of the channel steel, so that three sides of each reinforcing rib plate are welded in the channel steel.

9. A drag flask according to claim 8, wherein: the reinforcing rib plates on the outer frame are symmetrically arranged in the channel steel along the center of the outer frame in the axial direction.

10. A drag flask according to claim 1, wherein: waist-shaped holes are formed in the movable plate and the fixed plate, and the movable plate is fixed on the fixed plate and the bottom plate through bolts.