CN214977598U

CN214977598U - Expansion-proof device for sand box

Info

Publication number: CN214977598U
Application number: CN202121235827.2U
Authority: CN
Inventors: 丁杰; 秦虎; 姚远; 仲维
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-12-03
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a sand box anti-expansion device, which belongs to the technical field of casting devices and is arranged between a concrete wall and a sand box, and comprises a main frame, wherein two opposite side surfaces of the main frame are both arranged into inclined surfaces, the inclined surfaces are provided with sand storage tanks, the sand storage tanks are filled with resin sand, the surfaces formed by the resin sand are flush with the notches of the sand storage tanks, the notch of one sand storage tank is abutted against the wall surface of the concrete wall, and the notch of the other sand storage tank is abutted against the side wall of the sand box; the utility model discloses locate between sand box and the concrete wall, can be effectively connect the lateral wall of sand box and the wall of concrete wall, avoid the sand box to expand outward and present the condition of deformation, can effectively guarantee cast foundry goods size in line with the requirement to can guarantee the uniformity of many foundry goods sizes, by a wide margin the casting waste product of dimensional deviation that has reduced improves the yield of foundry goods, increase the economic benefits of casting enterprise, have certain popularization meaning.

Description

Expansion-proof device for sand box

Technical Field

The utility model relates to a casting technical field, concretely relates to sand box prevents device that expands.

Background

The casting can make metal be formed in one step, its technological flexibility is large, and the castings of various compositions, sizes, shapes and weights can be almost all adapted, and its cost is low. Generally, a tool required for sand casting is a sand box, and for a sand box of a large casting, the sand box is often required to have high strength in order to prevent the sand mould from deforming or the sand mould from expanding outwards in the pouring process to cause the size defect of the casting and the like.

In the pouring process, molten iron impacts a sand box cavity and is influenced by a pressure head, the molten iron in the sand box cavity generates great pressure on a sand mould wall, the sand mould wall has the tendency of yielding outwards under the action of the molten iron pressure, if the strength of a sand box is insufficient, the acting force of yielding of the sand mould wall cannot be resisted, the size of the sand box cavity can be changed, and the size deviation of a casting is caused. For the sand box with long length and large length-width ratio, the strength of the middle part of the sand box is often lower, and the sand box is difficult to ensure not to change in the pouring process only by the design of the sand box.

In order to avoid the deformation of the sand box, the conventional common method is to place the sand box between two concrete walls and limit the deformation of the sand box by using the wall surfaces of the concrete walls, but because the shapes of the sand boxes matched with different types of castings are different, the mode of clamping the sand box by using the concrete walls can only be suitable for the sand box with a specific width, and the applicability is low.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a pair of sand box anti-expansion device can place between sand box and concrete wall, and the effectual condition of deformation that appears in the sand box of having avoided has solved the problem because of the foundry goods deviation that the sand box warp and arouses to the application scope of the concrete wall of improvement that can be great.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a pair of sand box anti-expansion device locates between concrete wall and the sand box, including the main frame, the inclined plane is all established to two relative sides of main frame, all be equipped with on the inclined plane and store up the sand groove, it is full of the resin sand to store up the sand inslot, the surface that the resin sand formed with the notch parallel and level of storing up the sand groove, one store up the notch of sand groove with the wall butt of concrete wall, another store up the notch of sand groove with the lateral wall butt of sand box.

As a preferable technical solution, the two inclined surfaces are close to or far from each other along the length direction of the main frame.

As a preferred technical scheme, the sand storage tank comprises two sand blocking plates arranged on the inclined plane, and the two sand blocking plates and the inclined plane form the sand storage tank.

As a preferable technical scheme, the sand blocking plates are all wedge-shaped, and the notches of the two sand storage tanks are respectively parallel to the wall surface of the concrete wall and the side surface of the sand box.

As a preferable technical scheme, the inclined surface is provided with a positioning groove, the bottom surface of the positioning groove is parallel to the inclined surface, and the wedge surface of the sand baffle is abutted against the bottom surface of the groove.

As a preferred technical scheme, the sand blocking plates are provided with a plurality of groups, two sand blocking plates are arranged in each group, and the sand blocking plates in the same group are completely identical in shape.

As a preferred technical scheme, a plurality of transverse reinforcing ribs for supporting the two inclined surfaces are arranged on the main frame.

As a preferable technical scheme, a plurality of longitudinal reinforcing ribs for supporting the transverse reinforcing ribs are arranged between the transverse reinforcing ribs.

The utility model has the advantages of that:

1. the utility model discloses locate between sand box and the concrete wall, can be effectively connect the lateral wall of sand box and the wall of concrete wall, avoid the sand box to expand outward and present the condition of deformation, can effectively guarantee cast foundry goods size in line with the requirement to can guarantee the uniformity of many foundry goods sizes, by a wide margin the casting waste product of dimensional deviation that has reduced improves the yield of foundry goods, increase the economic benefits of casting enterprise, have certain popularization meaning.

2. The utility model discloses a change not unidimensional sand baffle, can utilize the concrete wall to press from both sides the sand box of different model sizes tightly, improved the application scope of concrete wall effectively.

Drawings

FIG. 1 is a front view of an embodiment of an expansion prevention device for a flask according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a structural view of the sand guard of FIG. 1;

fig. 4 is a schematic view of fig. 1 in use.

In the figure: 1-main frame, 11-horizontal reinforcing rib, 12-vertical reinforcing rib, 21-sand baffle, 3-resin sand, 4-sand box and 5-concrete wall.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-4, an embodiment of an anti-expansion device for a sand box 4 provided by the present invention includes a main frame 1, two opposite sides of the main frame 1 are both provided with inclined planes, each inclined plane is provided with a sand storage tank, the sand storage tanks are filled with resin sand 3, the surface formed by the resin sand 3 is flush with the notches of the sand storage tanks, the notch of one sand storage tank abuts against the wall surface of a concrete wall 5, and the notch of the other sand storage tank abuts against the side wall of the sand box 4; the utility model discloses a store up the sand groove and store up the resin sand 3 in the sand groove, can effectually be connected the lateral wall of sand box 4 and the wall of concrete wall 5, effectually prevent that sand box 4 from expanding outward.

It should be noted that, referring to fig. 4, in actual use, a plurality of flasks 4 with a particularly long length may be used at the same time, so as to better avoid deformation of the flasks 4.

In this embodiment, referring to fig. 1-4, the two inclined planes are close to or far away from each other along the length direction of the main frame 1, and in a normal situation, the two inclined planes are respectively inclined with respect to the side wall of the sand box 4 and the wall surface of the concrete wall 5, and when the wedge-shaped sand-blocking plates 21 are inserted between the inclined planes and the side wall of the sand box 4 and between the inclined planes and the wall surface of the concrete wall 5, the two sand-blocking plates 21 and the inclined planes can form a sand storage tank, and at the same time, the abutting strength of the sand storage tank with the side wall of the sand box 4 and the wall surface of the concrete wall 5 can be effectively ensured, and the deformation of the sand box 4 can be better avoided; specifically, the constant head tank has on the inclined plane, wedge face and the tank bottom surface butt of wedge-shaped sand baffle 21, can be convenient insert sand baffle 21, and when pouring into resin sand 3, the cell wall of constant head tank can spacing sand baffle 21, avoid sand baffle 21 to expand outward, make the stable shape in sand storage tank, resin sand 3 packing in the sand storage tank is tight real, and simultaneously, the side relative with the wedge face on sand baffle 21 forms the notch in sand storage tank, should be parallel with the wall of concrete wall 5 and the side of sand box 4 respectively, guarantee respectively with concrete wall 5 the wall and the side of sand box 4 between have sufficient butt area, improve joint strength.

It should be noted that, the sand baffles 21 may preferably be provided with a plurality of sets, each set of sand baffles 21 is provided with two, the shapes of the sand baffles 21 of the same set are completely the same, and the sand baffles 21 of different widths may be selected according to the sand boxes 4 of different widths or models, so as to ensure that the formed sand storage tank more effectively realizes the connection between the side wall of the sand box 4 and the wall surface of the concrete wall 5.

In this embodiment, referring to fig. 2, a plurality of transverse reinforcing ribs 11 supporting two inclined surfaces are disposed on the main frame 1, a plurality of longitudinal reinforcing ribs 12 supporting the transverse reinforcing ribs 11 are disposed between the transverse reinforcing ribs 11, and the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 12 can effectively enhance the strength of the main frame 1 and prevent the main frame 1 from deforming when in use.

The utility model discloses a concrete using-way as follows:

as shown in fig. 4, the sand box 4 is placed between the two concrete walls 5, an appropriate number of main frames 1 are placed in the gap between the sand box 4 and the concrete wall 5 according to the length of the sand box 4, two inclined surfaces of the main frames 1 are respectively opposed to the sand box 4 and the concrete wall 5, two wedge-shaped sand blocking plates 21 are inserted along the inclined surfaces, the wedge surfaces of the sand blocking plates 21 are tightly attached to the inclined surfaces, the other surfaces of the sand blocking plates 21 are abutted to the side surfaces of the sand box 4 or the wall surface of the concrete wall 5, and then resin sand 3 is injected into a sand storage groove formed by the two sand blocking plates 21 to increase the contact area, so that the casting can be performed, and the deformation of the sand box 4 can be effectively prevented.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a sand box anti-swelling device, locates between concrete wall and the sand box, its characterized in that, includes the main frame, two relative sides of main frame all establish to the inclined plane, all be equipped with on the inclined plane and store up the sand groove, it is full of resin sand to store up the sand inslot, the surface that resin sand formed with the notch parallel and level of sand storage groove, one the notch of sand storage groove with the wall butt of concrete wall, another the notch of sand storage groove with the lateral wall butt of sand box.

2. The sand box expansion preventing device according to claim 1, wherein the two inclined surfaces are close to or far away from each other along the length direction of the main frame.

3. The sand box expansion preventing device of claim 1, wherein the sand storage tank comprises two sand blocking plates arranged on the inclined surface, and the two sand blocking plates and the inclined surface form the sand storage tank.

4. The sand box anti-expansion device according to claim 3, wherein the sand blocking plates are wedge-shaped, and the notches of the two sand storage grooves are parallel to the wall surface of the concrete wall and the side surface of the sand box respectively.

5. The sand box anti-expansion device of claim 4, wherein the inclined surface is provided with a positioning groove, the bottom surface of the positioning groove is parallel to the inclined surface, and the wedge surface of the sand baffle is abutted against the bottom surface of the groove.

6. The sand box anti-expansion device according to claim 3 or 4, wherein a plurality of groups of the sand baffles are provided, two sand baffles are provided for each group, and the sand baffles of the same group have the same shape.

7. The anti-bulging device for sand boxes according to claim 1, wherein a plurality of transverse reinforcing ribs for supporting two of said slanted surfaces are provided on the main frame.

8. The flask inflation preventing device of claim 7, wherein a plurality of longitudinal reinforcing ribs are provided between said transverse reinforcing ribs for supporting said transverse reinforcing ribs.