Sand-saving sand box for L-shaped casting

Abstract

The sand-saving sand box comprises a sand box body, a casting channel is formed in the middle of the interior of the sand box body, the sand box body comprises a lower sand box and an upper sand box placed at the upper end of the lower sand box, a pouring cup communicated with the casting channel is arranged on the upper sand box, and two L-shaped casting cavities are oppositely formed in the lower sand box; the two L-shaped casting cavities are communicated through a transverse pouring channel, the casting channel is communicated with the transverse pouring channel, two forming steel plates are oppositely arranged in the upper sand box, a plurality of sand box ribs are arranged between the forming steel plates and the inner wall of the upper sand box, and a plurality of supporting ribs are arranged at the bottom in the lower sand box. The use amount of molding sand for casting the L-shaped casting is effectively reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to a sand-saving sand box for L-shaped castings. Background Art

[0002] The sand box is a common equipment in the sand casting process. When using the sand box for molding, the casting mold needs to be filled with molding sand to form a casting cavity after demolding. However, due to the special structure of L-type castings, the amount of molding sand required for using ordinary sand boxes is large, resulting in waste of molding sand and poor sand mold exhaust. At the same time, due to the cumbersome molding operation and long molding time, the efficiency of the molding workshop is seriously limited, which in turn affects the production efficiency and output of castings. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a sand-saving sand box for L-shaped castings, which can reduce the amount of molding sand used in casting L-shaped castings and reduce production costs; it is easy to clean the box and improve production efficiency.

[0004] The utility model adopts the following technical scheme to solve the above-mentioned technical problems: a sand-saving sand box for L-shaped castings, comprising a sand box body, a casting channel being arranged in the middle of the sand box body, the sand box body comprising a lower sand box and an upper sand box placed on the upper end of the lower sand box, a pouring cup being arranged on the upper sand box and being connected to the casting channel, two L-shaped casting cavities being arranged opposite to each other in the lower sand box, the two L-shaped casting cavities being connected through a transverse pouring channel, the casting channel being connected to the transverse pouring channel, two forming steel plates being arranged opposite to each other in the upper sand box, a plurality of sand box ribs being arranged between the forming steel plates and the inner wall of the upper sand box, and a plurality of supporting ribs being arranged at the bottom of the lower sand box.

[0005] As a preferred solution, the upper sand box is rectangular and hollow in structure, with an opening at the lower end, and the lower sand box is rectangular and hollow in structure, with an opening at the upper end.

[0006] As a preferred solution, the forming steel plate is arranged along the width direction of the upper flask, and the flask ribs are perpendicular to the forming steel plate.

[0007] As a preferred solution, the supporting ribs are arranged along the width direction of the lower sand box.

[0008] As a preferred solution, the height of the forming steel plate is lower than the height of the upper sand box.

[0009] As a preferred solution, box ears are respectively provided on the left and right side walls of the upper sand box, and reinforcing ribs are provided between the box ears on the same side and the side walls on the same side.

[0010] As a preferred solution, box ears are respectively provided on the left and right side walls of the lower sand box, and reinforcing ribs are provided between the box ears on the same side and the side walls on the same side.

[0011] The beneficial effects of the present application are as follows: the formed steel plates and sand box ribs of the present application form a sand-saving area; and the two L-shaped casting cavities are connected to the casting channel through a transverse pouring channel, and the two L-shaped castings share a casting system, which greatly reduces the amount of molding sand required for the production of each two L-shaped castings compared with ordinary single castings, and reduces the overall weight of the sand box used for casting L-shaped castings, thereby reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the upper sand box of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the lower sand box of the utility model.

[0015] Markings in the figure: 1. upper sand box, 2. lower sand box, 3. box ears, 4. reinforcing ribs, 11. forming steel plate, 12. sand box ribs, 21. supporting ribs, 5. L-shaped casting cavity, 6. molding sand, 7. pouring cup. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] See also Figure 1-3 The embodiment of the utility model provides a sand-saving sand box for L-type castings, including a sand box body, a casting channel is provided in the middle of the sand box body, the sand box body includes a lower sand box 2 and an upper sand box 1 placed on the upper end of the lower sand box 2, the upper sand box 1 is provided with a pouring cup 7 connected to the casting channel, two L-shaped casting cavities 5 are relatively arranged in the lower sand box 2, the two L-shaped casting cavities 5 are connected by a transverse pouring channel, the casting channel is connected to the transverse pouring channel, two forming steel plates 11 are relatively arranged in the upper sand box 1, a plurality of sand box ribs 12 are arranged between the forming steel plates 11 and the inner wall of the upper sand box 1, and a plurality of supporting ribs 21 are arranged at the bottom of the lower sand box 2.

[0018] The upper sand box 1 is rectangular and hollow in structure, with an opening at the lower end, and the lower sand box 2 is rectangular and hollow in structure, with an opening at the upper end.

[0019] Specifically, the forming steel plate 11 is arranged along the width direction of the upper flask 1, the flask ribs 12 are perpendicular to the forming steel plate 11, the height of the forming steel plate 11 is lower than the height of the upper flask 1, a certain distance is left between the bottom of the forming steel plate 11 and the casting as the sand intake, and the supporting ribs 21 are arranged along the width direction of the lower flask 2. It should be noted that the parts not described in detail in this application are all prior art.

[0020] In addition, box ears 3 are respectively provided on the left and right side walls of the upper sand box 1, and reinforcing ribs 4 are provided between the box ears 3 on the same side and the side walls on the same side. Box ears 3 are respectively provided on the left and right side walls of the lower sand box 2, and reinforcing ribs 4 are provided between the box ears 3 on the same side and the side walls on the same side. The setting direction of the support ribs 21 is perpendicular to the setting direction of the box ears 3.

[0021] Working process of this application: when in use, first make the lower sand box mold according to the mold forming position, put in the molding sand 6, fill and harden; when making the upper sand mold, directly put the upper sand box 1 on the lower sand box 2, and shape according to the forming position. The shaping is simple and the shaping time is short, which greatly improves the production efficiency.

[0022] The forming steel plate 11 and the sand box ribs 12 of the upper sand box 1 form a sand-saving area. At the same time, the two L-shaped casting cavities 5 are connected to the casting channel through the cross-casting channel. Every two L-shaped castings share the same pouring and riser system, which also plays a role in sand saving.

[0023] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.

Claims

1. A sand-saving flask for L-type castings, characterized in that: The invention comprises a sand box body, wherein a casting channel is provided in the middle of the sand box body, the sand box body comprises a lower sand box (2) and an upper sand box (1) placed on the upper end of the lower sand box (2), the upper sand box (1) is provided with a pouring cup (7) connected to the casting channel, two L-shaped casting cavities (5) are arranged opposite to each other in the lower sand box (2), the two L-shaped casting cavities (5) are connected through a horizontal pouring channel, the casting channel is connected to the horizontal pouring channel, two forming steel plates (11) are arranged opposite to each other in the upper sand box (1), a plurality of sand box ribs (12) are arranged between the forming steel plates (11) and the inner wall of the upper sand box (1), and a plurality of supporting ribs (21) are arranged at the bottom of the lower sand box (2).

2. The sand-saving flask for L-shaped castings according to claim 1, characterized in that: The upper sand box (1) is rectangular and has a hollow structure, and the lower end of the upper sand box (1) is open; the lower sand box (2) is rectangular and has a hollow structure, and the upper end of the lower sand box (2) is open.

3. The sand-saving flask for L-shaped castings according to claim 2, characterized in that: The forming steel plate (11) is arranged along the width direction of the upper flask (1), and the flask ribs (12) are perpendicular to the forming steel plate (11).

4. The sand-saving flask for L-shaped castings according to claim 2, characterized in that: The supporting ribs (21) are arranged along the width direction of the lower sand box (2).

5. The sand-saving flask for L-shaped castings according to claim 2, characterized in that: The height of the forming steel plate (11) is lower than the height of the upper sand box (1).

6. The sand-saving flask for L-type castings according to claim 1, characterized in that: The left and right side walls of the upper sand box (1) are respectively provided with box ears (3), and reinforcing ribs (4) are provided between the box ears (3) on the same side and the side wall on the same side.

7. The sand-saving flask for L-type castings according to claim 1, characterized in that: The left and right side walls of the lower sand box (2) are respectively provided with box ears (3), and reinforcing ribs (4) are provided between the box ears (3) on the same side and the side wall on the same side.

Images