Casting lacing wire manufacturing structure

Abstract

The utility model relates to a casting lacing wire manufacturing structure which comprises a sand mold lower mold arranged in a pit and a sand mold upper mold arranged above the sand mold lower mold, a U-shaped casting cavity is formed between the sand mold upper mold and the sand mold lower mold, and a plurality of foam lacing wire patterns arranged in the transverse direction are arranged between the two side walls of the casting cavity in a penetrating mode. A plurality of foam tie piece patterns are distributed at intervals in the longitudinal direction, and the foam tie piece patterns can be taken out to form a tie piece forming area. According to the utility model, the design is reasonable, the foam lacing wire pattern is transversely arranged between the two side walls of the sand mold casting cavity in a penetrating manner, and a lacing wire forming area can be formed when the foam lacing wire pattern is taken out, so that the lacing wire and a casting are integrally cast and formed by the sand mold, the lacing wire does not need to be welded subsequently, and the waste of welding materials and the consumption of welding time are avoided; meanwhile, the lacing wire pattern is made of foam and is convenient to take out.

Description

Technical Field

[0001] The utility model relates to a casting reinforcement manufacturing structure. Background Art

[0002] Sand casting refers to a casting method that produces castings in sand molds. Since the molding materials used in sand casting are cheap and easy to obtain, the mold is simple to manufacture, and it can adapt to single-piece production, batch production, and mass production of castings, it has long been a basic process in casting production.

[0003] During the casting process of large steel castings, tie bars are often installed to prevent thermal deformation during subsequent welding repairs. For example, tie bars are installed between the two side walls near the opening of a U-shaped casting. However, tie bars on U-shaped castings are often directly welded to the casting, which wastes welding materials and consumes welding time. Utility Model Content

[0004] The present invention aims to improve the problems existing in the prior art, that is, the technical problem to be solved by the present invention is to provide a casting reinforcement manufacturing structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a casting reinforcement production structure, including a sand mold lower mold arranged in a pit, and a sand mold upper mold arranged above the sand mold lower mold, a U-shaped casting cavity is formed between the sand mold upper mold and the sand mold lower mold, and a plurality of foam reinforcement patterns arranged in the transverse direction are penetrated between the two side walls of the casting cavity, and the plurality of foam reinforcement patterns are distributed at intervals in the longitudinal direction, so that the foam reinforcement patterns are convenient for forming a reinforcement forming area after being taken out.

[0006] Furthermore, the top of the sand mold lower mold has a downwardly concave molding cavity, and the bottom of the sand mold upper mold is provided with a molding convex portion protruding downward and extending into the molding cavity, and a casting cavity is formed between the molding convex portion and the molding cavity.

[0007] Furthermore, both side walls of the forming cavity are provided with a plurality of first transverse perforations spaced apart in the longitudinal direction, and the upper end of the forming protrusion is provided with a plurality of second transverse perforations spaced apart in the longitudinal direction. The plurality of first transverse perforations and the plurality of second transverse perforations all correspond to the positions of the plurality of foam reinforcement patterns. The foam reinforcement pattern penetrates the second transverse perforations corresponding to the positions, and both ends of the foam reinforcement pattern extend out of the first transverse perforations corresponding to the positions.

[0008] Furthermore, the cross-sectional shape of the foam reinforcement pattern is the same as the cross-sectional shape of the first transverse perforation and the second transverse perforation.

[0009] Compared with the prior art, the utility model has the following effects: the utility model is reasonably designed, and a foam reinforcement pattern is arranged transversely between the two side walls of the sand casting cavity. When the foam reinforcement pattern is removed, a reinforcement forming area can be formed, thereby realizing the integrated sand casting of the reinforcement and the casting. There is no need to weld the reinforcement subsequently, thus avoiding wasting welding materials and consuming welding time; at the same time, the reinforcement pattern is made of foam, which is convenient to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model;

[0011] Figure 2 It is a schematic top view of the structure of an embodiment of the present utility model.

[0012] In the picture:

[0013] 1- pit; 2- sand mold lower mold; 3- sand mold upper mold; 4- casting cavity; 5- foam reinforcement pattern; 6- molding cavity; 7- molding convex part; 8- first transverse perforation; 9- second transverse perforation. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0016] like Figures 1-2As shown, the present invention provides a casting tie rod production structure for providing transverse tie rods between the side walls of a U-shaped casting. This production structure is an improvement on the existing U-shaped sand mold for castings, and mainly includes a sand mold lower mold 2 disposed within a pit 1, and a sand mold upper mold 3 disposed above the sand mold lower mold 2. The sand mold upper mold 3 and the sand mold lower mold 2 form a U-shaped casting cavity 4 between the sand mold upper mold 3 and the sand mold lower mold 2. This portion is the existing structure, but the specific improvement is that multiple foam tie rod patterns 5 arranged transversely are inserted between the side walls of the casting cavity 4. The multiple foam tie rod patterns 5 are spaced longitudinally. After the foam tie rod patterns 5 are removed, the area where the foam tie rod patterns originally existed forms a tie rod forming area. When molten steel is subsequently injected, tie rods can be formed in the tie rod forming area. By inserting the transverse foam tie rod patterns between the side walls of the sand casting cavity, a tie rod forming area is formed after the foam tie rod patterns are removed. This achieves sand casting of the tie rods and the casting as one piece, eliminating the need for subsequent welding of the tie rods, thus avoiding waste of welding materials and consuming welding time. At the same time, the lacing pattern is made of foam, and the foam lacing pattern can be melted by a small iron block to achieve the removal of the foam lacing pattern.

[0017] It should be noted that in the field of sand casting, in addition to foam molds, wooden molds are also available. This means that the reinforcement pattern can be made of either foam or wooden molds. However, due to pit size limitations, when the sand mold lower mold is set within the pit, the distance between the left and right sides of the sand mold lower mold and the pit sidewalls is insufficient, making the wooden mold inconvenient to remove. In this embodiment, the reinforcement pattern is made of a foam mold. Although the space between the sand mold lower mold and the pit sidewalls is relatively small, the foam reinforcement pattern can be removed by heating and melting it. This allows for quick removal of the reinforcement pattern, making it convenient to use.

[0018] In this embodiment, the top of the sand mold lower mold 2 has a downwardly concave molding cavity 6, and the bottom of the sand mold upper mold 3 is provided with a molding protrusion 7 that protrudes downward and extends into the molding cavity 6. A casting cavity 4 is formed between the molding protrusion 7 and the molding cavity 6, and the shape of the casting cavity is adapted to the shape of the U-shaped casting.

[0019] In this embodiment, both side walls of the forming cavity 6 are provided with a plurality of first transverse perforations 8 spaced apart along the longitudinal direction, and the upper end of the forming protrusion 7 is provided with a plurality of second transverse perforations 9 spaced apart along the longitudinal direction. The plurality of first transverse perforations 8 and the plurality of second transverse perforations 9 correspond to the positions of the plurality of foam reinforcement patterns 5. The foam reinforcement pattern 5 passes through the second transverse perforations 9 corresponding to the positions along the transverse direction, and both ends of the foam reinforcement pattern 5 pass through the first transverse perforations 8 corresponding to the positions and extend out of the first transverse perforations 8.

[0020] In this embodiment, the cross-sectional shape of the foam reinforcement pattern 5 is the same as the cross-sectional shape of the first transverse through-hole 8 and the second transverse through-hole 9, and both are rectangular.

[0021] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0022] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0023] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for protection of the utility model.

Claims

1. A casting reinforcement manufacturing structure, comprising a sand mold lower mold arranged in a pit, and a sand mold upper mold arranged above the sand mold lower mold, wherein a U-shaped casting cavity is formed between the sand mold upper mold and the sand mold lower mold, characterized in that: A plurality of foam reinforcement patterns arranged in the transverse direction are provided between the two side walls of the casting cavity. The plurality of foam reinforcement patterns are distributed at intervals in the longitudinal direction. The foam reinforcement patterns are convenient for forming reinforcement forming areas after being taken out.

2. A casting reinforcement manufacturing structure according to claim 1, characterized in that: The top of the sand mold lower mold is provided with a downwardly concave molding cavity, and the bottom of the sand mold upper mold is provided with a molding convex portion protruding downward and extending into the molding cavity, and a casting cavity is formed between the molding convex portion and the molding cavity.

3. A casting reinforcement manufacturing structure according to claim 2, characterized in that: Both side walls of the forming cavity are provided with a plurality of first transverse perforations spaced apart in the longitudinal direction, and the upper end of the forming protrusion is provided with a plurality of second transverse perforations spaced apart in the longitudinal direction. The plurality of first transverse perforations and the plurality of second transverse perforations correspond to the positions of the plurality of foam reinforcement patterns. The foam reinforcement pattern passes through the second transverse perforations corresponding to the positions, and both ends of the foam reinforcement pattern extend out of the first transverse perforations corresponding to the positions.

4. A casting reinforcement manufacturing structure according to claim 3, characterized in that: The cross-sectional shape of the foam reinforcement pattern is the same as the cross-sectional shape of the first transverse perforation and the second transverse perforation.

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