CN218340962U

CN218340962U - Filling structure of resin sand box for sand casting

Info

Publication number: CN218340962U
Application number: CN202222793674.4U
Authority: CN
Inventors: 宁林祥; 宁吉泉; 范永超
Original assignee: Zhejiang Ouye Da Machinery Manufacture Co ltd
Current assignee: Zhejiang Ouye Da Machinery Manufacture Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-20
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a filling structure of resin sand box for sand casting, including box shell (1), be equipped with die cavity (2) of placing the product mould in box shell (1), form between the inner wall of die cavity (2) and box shell (1) and fill chamber (3), the bottom of filling chamber (3) evenly is equipped with basic sand bed (4), and basic sand bed (4) upper berth is equipped with a plurality of hollow tubes (5), and it has the molding sand to lie in to fill to be located between adjacent hollow tube (5) in chamber (3). The utility model has the characteristics of reduce the molding sand use amount, reduce cost.

Description

Filling structure of resin sand box for sand casting

Technical Field

The utility model relates to a molding is with sand box, especially a filling structure of resin sand box for sand casting.

Background

In a casting workshop of a nodular cast iron, a sand box is required to be used for molding the cast, a conventional sand box for molding is generally a hollow box body, a cavity mold is arranged in the hollow box body, for the cast with a small volume, the volume of the cast is far smaller than the volume of the sand box, after the cast is placed into the cavity mold, the part around the cavity mold is required to be completely filled with resin sand and tamped, the filling amount of the resin sand is very large, the numerical value of the sand-iron ratio is high, the price of the resin sand is high, the waste sand generated by casting is difficult to reuse, certain equipment is required to be put into for treatment and recovery, the cost is increased, the waste sand pollutes the environment, and when the using amount of the resin sand is too large, the weight of the sand box is too heavy, and even exceeds the lifting capacity of lifting equipment, so that the normal molding operation is influenced.

Therefore, the filling structure of the prior sand box adopting all resin sand has the problems of large filling amount of the resin sand and high cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filling structure of resin sand box for sand casting.

The utility model has the characteristics of reduce the molding sand use amount, reduce cost.

The technical scheme of the utility model: filling structure of resin sand box for sand casting, including the box shell, be equipped with the die cavity of placing the product mould in the box shell, form between the inner wall of die cavity and box shell and fill the chamber, the bottom in filling the chamber evenly is equipped with basic sand bed, and basic sand bed upper berth is equipped with a plurality of hollow tubes, and it has the molding sand to fill intracavity to be located to fill between the adjacent hollow tube.

In the filling structure of the resin sand box for sand casting, two ends of the hollow pipe are closed ends, and the hollow pipe is a square pipe.

In the filling structure of the resin sand box for sand casting, two ends of the hollow pipe are open ends, and the open ends are detachably connected with sealing covers for sealing.

In the filling structure of the resin sand box for sand casting, the sealing cover comprises a first end cover arranged at one end of the hollow pipe and a second end cover arranged at the other end of the hollow pipe, clamping blocks extending into the hollow pipe are arranged at the inner ends of the first end cover and the second end cover, a connecting groove is formed in the outer end of the first end cover, and a connecting block matched with the connecting groove is arranged at the outer end of the second end cover.

In the filling structure of the resin sand box for sand casting, the connecting groove is a dovetail groove or a T-shaped groove.

In the filling structure of the resin sand box for sand casting, the bottom of the hollow pipe is provided with the elongated slot communicated with the cavity of the hollow pipe, the cavity is internally provided with a plurality of T-shaped balancing weights, and the balancing weights are connected with the elongated slot in a sliding manner.

In the filling structure of the resin sand box for sand casting, the top of the hollow pipe is provided with the clamping strip matched with the size of the elongated slot.

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

the utility model discloses in earlier set up the husky layer of base at the packing intracavity, the bottom filling that will fill the chamber levels, then places the hollow tube on the husky layer of base, replaces the molding sand that partly fills, then refills the molding sand to reduce the use amount of molding sand in the sand box, reduced casting cost, wherein the hollow tube can used repeatedly, reduce manufacturing cost and material cost.

Furthermore, the hollow pipe can be spliced and combined, the weight of the hollow pipe can be adjusted according to actual conditions, and the hollow pipe is more flexible and convenient to use.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the structure of a hollow tube;

fig. 3 is a schematic structural view of the weight member.

The labels in the figures are: 1. a case body shell; 2. a cavity; 3. filling the cavity; 4. a base sand layer; 5. a hollow tube; 51. a first end cap; 52. a second end cap; 53. a clamping block; 54. connecting grooves; 55. connecting blocks; 56. a cavity; 57. a long groove; 58. a balancing weight; 6. and (6) clamping the strip.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Example (b):

as shown in fig. 1, the filling structure of the resin sand box for sand casting comprises a box body shell 1, wherein a cavity 2 for placing a product mold is arranged in the box body shell 1, a filling cavity 3 is formed between the cavity 2 and the inner wall of the box body shell 1, a base sand layer 4 is uniformly arranged at the bottom of the filling cavity 3, a plurality of hollow pipes 5 are paved on the base sand layer 4, and molding sand is filled between the adjacent hollow pipes 5 in the filling cavity 3.

The two ends of the hollow pipe 5 are closed ends, and the hollow pipe 5 is a square pipe.

Alternatively, as shown in fig. 2, both ends of the hollow tube 5 may be open ends, and the open ends are detachably connected with sealing caps for sealing.

The sealing cover comprises a first end cover 51 arranged at one end of the hollow pipe 5 and a second end cover 52 arranged at the other end of the hollow pipe 5, wherein the inner ends of the first end cover 51 and the second end cover 52 are respectively provided with a clamping block 53 extending into the hollow pipe 5, the outer end of the first end cover 51 is provided with a connecting groove 54, and the outer end of the second end cover 52 is provided with a connecting block 55 matched with the connecting groove 54.

The connecting groove 54 is a dovetail groove or a T-shaped groove.

As shown in fig. 3, the bottom of the hollow tube 5 is provided with a long groove 57 communicated with the cavity 56 of the hollow tube 5, a plurality of T-shaped balancing weights 58 are arranged in the cavity 56, and the balancing weights 58 are slidably connected with the long groove 57. After the balancing weight is installed, the opening end of the hollow pipe 5 is sealed through a sealing cover.

The top of the hollow pipe 5 is provided with a clamping strip 6 matched with the size of the long groove 57. When the hollow pipes 5 are superposed up and down, the clamping strips 6 of the hollow pipes 5 on the lower layer are embedded into the long grooves 57 of the hollow pipes 5 on the upper layer, so that stable connection is realized.

When the sand box is filled, a base sand layer 4 is arranged in the filling cavity 3, the bottom of the filling cavity 3 is filled and leveled, then the hollow pipe 5 is placed on the base sand layer 4 to replace a part of filled molding sand, and finally the molding sand is refilled until the molding requirement is met, so that the using amount of the molding sand in the sand box is reduced, the casting cost is reduced, the hollow pipe 5 can be reused, and the manufacturing cost and the material cost are reduced.

The weight-balancing block 58 is arranged in the hollow tube 5, so that the strength of the hollow tube 5 can be improved, the hollow tube 5 is not easy to be extruded and deformed by resin sand, the quantity of the weight-balancing block 58 can be increased and decreased conveniently, the position of the weight-balancing block can be adjusted, the weight of the hollow tube 5 can be adjusted, molding sand can be better replaced, and the use is more flexible; the hollow pipe 5 is spliced up and down or connected left and right through the connection of the clamping strip 6 and the long groove 57 or the connection of the connecting groove 54 and the connecting block 55, and the hollow pipe 5 can be combined and disassembled, so that the matching is performed according to the size of the box body shell 1 and the size of the filling cavity 3, the filling cavities 3 with different sizes are adapted, and the universality is good; when the hollow pipe 5 is damaged, the independent fittings can be replaced, and the replacement cost is low.

The details of the present invention are not described in the prior art, and therefore, are not specifically described herein.

Claims

1. Filling structure of resin sand box for sand casting, including box shell (1), be equipped with die cavity (2) of placing the product mould in box shell (1), form between the inner wall of die cavity (2) and box shell (1) and fill chamber (3), its characterized in that: the bottom of filling chamber (3) evenly is equipped with base sand layer (4), and base sand layer (4) upper berth is equipped with a plurality of hollow tubes (5), is located to fill and is filled the molding sand between adjacent hollow tube (5) in chamber (3).

2. The filling structure of a resin flask for sand casting according to claim 1, characterized in that: the two ends of the hollow pipe (5) are closed ends, and the hollow pipe (5) is a square pipe.

3. The filling structure of a resin flask for sand casting according to claim 1, characterized in that: the two ends of the hollow pipe (5) are open ends, and the open ends are detachably connected with sealing covers for sealing.

4. The filling structure of a resin sand box for sand casting according to claim 3, characterized in that: sealed lid is including installing first end cover (51) in the one end of hollow tube (5) to and install second end cover (52) at the other end of hollow tube (5), the inner of first end cover (51) and second end cover (52) all is equipped with fixture block (53) that stretch into in hollow tube (5), the outer end of first end cover (51) is equipped with spread groove (54), the outer end of second end cover (52) be equipped with spread groove (54) assorted connecting block (55).

5. The filling structure of a resin flask for sand casting according to claim 4, characterized in that: the connecting groove (54) is a dovetail groove or a T-shaped groove.

6. The filling structure of a resin sand box for sand casting according to claim 3, characterized in that: the bottom of the hollow pipe (5) is provided with a long groove (57) communicated with the cavity (56) of the hollow pipe (5), a plurality of T-shaped balancing weights (58) are arranged in the cavity (56), and the balancing weights (58) are connected with the long groove (57) in a sliding manner.

7. The filling structure of a resin flask for sand casting according to claim 6, wherein: and the top of the hollow pipe (5) is provided with a clamping strip (6) matched with the long groove (57) in size.