CN220532926U

CN220532926U - Sand box

Info

Publication number: CN220532926U
Application number: CN202322141423.2U
Authority: CN
Inventors: 柯志敏; 沈廷飞; 梁健松
Original assignee: Guangdong Zhongtian Chuangzhan Ductile Iron Co ltd
Current assignee: Guangdong Zhongtian Chuangzhan Ductile Iron Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-27
Anticipated expiration: 2033-08-09

Abstract

The utility model relates to the field of sand casting, and discloses a sand box, which comprises a sand box body, an upper fixed beam, a lower fixed beam and two side fixed beams; the sand box body is arranged in a space surrounded by the upper fixing beam, the lower fixing beam and the fixing beams at the two sides; the two ends of the lower fixed beam and the upper fixed beam are respectively provided with a first through hole for accommodating the fixed beams at the two sides; the side surface of the lower fixed beam is provided with a second through hole; the lower ends of the two side fixing beams are provided with third through holes matched with the second through holes; the second through holes and the third through holes are matched to enable the lower end planes of the fixing beams on two sides to be flush with the lower surface of the lower fixing beam. The sand box reduces the stress between the lower fixed beam and the fixed beams at the two sides, thereby increasing the durability of the lower fixed beam and the fixed beams at the two sides.

Description

Sand box

Technical Field

The utility model relates to the field of sand casting, in particular to a sand box.

Background

In the casting production process of castings, a casting sand box is generally adopted as a mold, and molten iron is poured into the casting sand box to cast castings required by users. In the pouring process of large castings, because the pouring pressure head is high, dynamic pressure and static pressure are high, the conventional fastening mode of huge expansion force cannot meet the requirements, and the conventional fastening mode generally comprises the steps of installing bolts on the side face of a sand box to tighten an upper box body and a lower box body, if the sand box expands, the casting generates the problems of external dimension, shape, weight, internal compactness, hot cracks and the like, and the molten iron overflows and the product is scrapped when the casting is serious, so that potential safety hazards still exist.

CN201820883355 discloses a clamping device for a large casting flask, comprising: a sand box body; the cross beams are transversely arranged along the sand box body, first through holes are formed in two ends of the cross beams, and the cross beams are distributed at the top and the bottom of the sand box body; the sand box comprises a sand box body, a plurality of longitudinal beams longitudinally arranged along the sand box body, wherein one end of each longitudinal beam penetrates through a first through hole formed in a cross beam at the top of the sand box body, the other end of each longitudinal beam penetrates through a first through hole formed in a cross beam at the bottom of the sand box body, the cross beams are locked between the sand box body and the longitudinal beams, a plurality of frames are formed by the cross beams and the longitudinal beams, and the sand box body is clamped by the frames. The flask body is clamped by these frames. The sand box can be prevented from being expanded. However, when the cross beam and the longitudinal beam positioned at the bottom of the sand box in the clamping device are limited, the end part of the longitudinal beam penetrates through the cross beam to enable the limiting rod to be stressed, so that the risk of breakage of the limiting rod exists, and the sand box can vibrate or topple over, so that the product is scrapped.

The technical problems to be solved by the utility model are as follows: how to improve the durability of the fixing beam of the sand box.

Disclosure of Invention

The main purpose of the utility model is to provide a sand box, wherein the lower surface of a lower fixed beam is flush with the lower end surfaces of two side fixed beams, so that the second through hole and the third through hole are not stressed when being matched, thereby avoiding the deformation or damage of the lower fixed beam and the two side fixed beams due to stress and improving the durability of the lower fixed beam and the two side fixed beams.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

a sand box comprises a sand box body, an upper fixed beam, a lower fixed beam and two side fixed beams; the sand box body is arranged in a space surrounded by the upper fixing beam, the lower fixing beam and the fixing beams at the two sides; the two ends of the lower fixed beam and the upper fixed beam are respectively provided with a first through hole for accommodating the fixed beams at the two sides; the side surface of the lower fixed beam is provided with a second through hole; the lower ends of the two side fixing beams are provided with third through holes matched with the second through holes; the second through holes and the third through holes are matched to enable the lower end planes of the fixing beams on two sides to be flush with the lower surface of the lower fixing beam.

Preferably, the upper fixing beam and the lower fixing beam are provided with a plurality of first bosses; the first boss is used for lifting the upper fixing beam or the lower fixing beam.

Preferably, limit bosses are arranged on two sides of the upper end of the two-side fixed beam; the limiting boss is used for enabling the fixing beams on two sides to be overlapped with the upper fixing beam.

Preferably, the upper ends of the two side fixing beams are provided with fourth through holes; the fourth through holes are used for lifting the fixing beams at two sides.

Preferably, detachable sand baffles are arranged around the sand box body; second bosses are arranged on two sides of the sand box body; the second boss is used for lifting the sand box.

Preferably, the sand box is provided with a detachable base; the height of the base is equal to the thickness of the lower fixed beam.

Compared with the prior art, the scheme has the following beneficial effects:

1. the lower end surfaces of the two side fixing beams are flush with the lower surface of the lower fixing beam, so that the joint of the lower fixing beam and the two side fixing beams is not stressed when the clamping and fixing are carried out, and the durability of the joint is improved.

2. The sand box of this case still is equipped with detachable base, and the height of base equals with the thickness of lower fixed beam, makes things convenient for the installation of lower fixed beam, also prevents simultaneously that lower fixed beam is unsettled, increases clamping force.

3. The sand box of the scheme is also provided with the detachable sand baffle, the sand baffle can prevent sand from falling on the ground in the sand injection process, the environment is kept clean, and the sand baffle can be dismantled after the sand injection is completed, so that the follow-up processing procedure is not influenced.

Drawings

FIG. 1 is a schematic view showing the structure of a flask (with a sand-blocking plate removed) of example 1;

fig. 2 is a schematic structural view of an upper fixing beam of embodiment 1;

fig. 3 is a schematic structural view of the lower fixing beam of embodiment 1;

fig. 4 is a schematic structural view of the two-side fixing beam of embodiment 1;

FIG. 5 is a schematic view showing the structure of a flask (with a sand plate) according to example 1.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the implementations of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

Referring to fig. 1 to 5, a sand box includes a sand box body 1, an upper fixing beam 2, a lower fixing beam 3, and two side fixing beams 4; the sand box body 1 is arranged in a space surrounded by the upper fixing beam 2, the lower fixing beam 3 and the fixing beams 4 at the two sides; the two ends of the lower fixed beam 3 and the upper fixed beam 2 are respectively provided with a first through hole 21 for accommodating the fixed beams 4 at two sides; the side surface of the lower fixed beam 3 is provided with a second through hole 31; the lower ends of the two side fixing beams 4 are provided with third through holes 41 which are matched with the second through holes 31; the second through holes 31 and the third through holes 41 are matched so that the lower end planes of the two side fixing beams 4 are flush with the lower surface of the lower fixing beam 3.

In this embodiment, the installation modes of the flask body 1 and the fixing module are: the lower fixing beam 3 is placed at the bottom of the sand box body 1, the upper fixing beam 2 is placed at the top of the sand box through the row crane and is positioned right above the lower fixing beam 3, the two side fixing beams 4 are moved to the upper part of the upper fixing beam 2 through the row crane, the upper fixing beam 2 is inserted into the first through hole 21 of the lower fixing beam 3, and the limit posts penetrate through the second through hole 31 and the third through hole 41, so that the lower end surfaces of the two side fixing beams 4 are flush with the lower surface of the lower fixing beam 3. After the installation is completed, the sand box body 1 is clamped by the upper fixing beam 2, the lower fixing beam 3 and the fixing beams 4 at the two sides, so that the sand box body 1 is prevented from expanding and deforming.

The lower end surfaces of the fixing beams 4 on the two sides are flush with the lower surface of the lower fixing beam 3, so that the limit column is not stressed under normal conditions, and only when the sand box body 1 expands and deforms, the sand box body 1 is prevented from deforming. Therefore, the lower end surfaces of the two side fixing beams 4 are flush with the lower surface of the lower fixing beam 3, so that the time for stressing the lower fixing beam 3 and the two side fixing beams 4 can be reduced, and the durability of the fixing module can be improved. And gaps between the fixed modules can be filled by using the peripheral wedge blocks.

If the length of the flask is relatively large, a plurality of upper fixing beams 2, lower fixing beams 3, and both side fixing beams 4 may be used for fixing.

Preferably, the upper fixing beam 2 and the lower fixing beam 3 are provided with a plurality of first bosses 22; the first boss 22 is used to hoist the upper fixed beam 2 or the lower fixed beam 3.

In this embodiment, because the volumes of the upper fixing beam 2 and the lower fixing beam 3 are larger, a plurality of first bosses 22 are respectively arranged on two sides of the upper fixing beam 2 and the lower fixing beam 3, when disassembly or assembly is needed, the first bosses 22 can be tied up by ropes, and the movable crane can be used for moving, so that the assembly difficulty and the labor intensity of workers are greatly reduced.

Preferably, two sides of the upper end of the two-side fixed beam 4 are provided with limiting bosses 42; the limiting boss 42 is used for enabling the two side fixing beams 4 to overlap the upper fixing beam 2.

In this embodiment, the two side fixing beams 4 replace the through holes by arranging the limiting boss 42, when the two side fixing beams 4 need to be disassembled or assembled, the worker only needs to move to the upper side of the upper fixing beam 2 through the traveling crane, passes through the first through hole 21, and the limiting boss 42 is lapped on the upper fixing beam 2, so that the worker does not need to perform limiting operation between the upper fixing beam 2 and the two side fixing beams 4, and the labor intensity of the worker is greatly reduced.

Preferably, the upper ends of the two side fixing beams 4 are provided with fourth through holes 43; the fourth through holes 43 are used for lifting the two-side fixing beams 4.

In the present embodiment, since the both side fixing beams 4 need to be vertically moved, the both side fixing beams 4 have an elongated rectangular parallelepiped structure. Therefore, in order to improve the safety of movement, the fourth through holes 43 are formed in the tops of the fixing beams 4 on the two sides, ropes are used for penetrating through the fourth through holes 43, and then the traveling crane is used for moving, so that the safety of movement of the fixing beams 4 on the two sides is improved, and the labor intensity of workers is reduced.

Preferably, a detachable sand baffle 1111 is arranged around the sand box body 1; second bosses 12 are arranged on two sides of the sand box body 1; the second boss 12 is used to lift the flask.

In this embodiment, the two sides of the sand box body 1 are provided with the second bosses 12, when the sand casting is completed and the casting is required to be taken or the sand box is required to be moved, the rope can be bound through the second bosses 12, and then the sand box is transported by crane.

Preferably, the flask is provided with a removable base 13; the height of the base 13 is equal to the thickness of the lower fixed beam 3.

In this embodiment, in order to make the fixed module install more conveniently, the sand box bottom is provided with detachable base 13, and base 13 makes the lower surface of sand box and ground form certain clearance, and the staff can be fixed advance the clearance in lower fixed beam 3, carries out the installation of fixed beam 2 and both sides fixed beam 4 again, and through this mode can conveniently use spacing post to fix second through-hole 31 and third through-hole 41 moreover, reduces staff's intensity of labour, improves production efficiency.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The sand box is characterized by comprising a sand box body, an upper fixing beam, a lower fixing beam and two side fixing beams; the sand box body is arranged in a space surrounded by the upper fixing beam, the lower fixing beam and the fixing beams at the two sides; the two ends of the lower fixed beam and the upper fixed beam are respectively provided with a first through hole for accommodating the fixed beams at the two sides; the side surface of the lower fixed beam is provided with a second through hole; the lower ends of the two side fixing beams are provided with third through holes matched with the second through holes; the second through holes and the third through holes are matched to enable the lower end planes of the fixing beams on two sides to be flush with the lower surface of the lower fixing beam.

2. The flask as in claim 1, wherein each of said upper and lower securing beams has a plurality of first bosses; the first boss is used for lifting the upper fixing beam or the lower fixing beam.

3. The sand box according to claim 1, wherein limit bosses are arranged on two sides of the upper end of the two-side fixing beams; the limiting boss is used for enabling the fixing beams on two sides to be overlapped with the upper fixing beam.

4. A flask as claimed in claim 3, wherein the upper ends of the side fixing beams are provided with fourth through holes; the fourth through holes are used for lifting the fixing beams at two sides.

5. The sand box according to claim 1, wherein a detachable sand baffle is arranged around the sand box body; second bosses are arranged on two sides of the sand box body; the second boss is used for lifting the sand box.

6. A flask as in claim 1, wherein said flask is provided with a removable base; the height of the base is equal to the thickness of the lower fixed beam.