Efficient one-mold multi-piece precoated sand mold

Abstract

The utility model belongs to the field of precoated sand molds, and provides an efficient one-mold multi-piece precoated sand mold which comprises a first mold and a second mold, the first mold comprises a first template and a first template, and 30 horseshoe-shaped first models are arranged on the first template and are distributed in a determinant mode; first casting process structures distributed in an I shape are arranged between the first models, and exhaust holes are formed in the first casting process structures; the second mold comprises a second template and a second template, 30 horseshoe-shaped second models are arranged on the second template, casting workpiece character dies are arranged on the surfaces of the second models, the 30 second models are distributed in a determinant mode, and second casting process structures distributed in an X shape are arranged between the adjacent second models. According to the utility model, the product quality is ensured, the cost is saved, the production efficiency is effectively improved, the design is reasonable, the structure is simple, and the device is suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model belongs to the field of coated sand moulds, in particular to a high-efficiency one-mold multi-piece coated sand mould. Background Art

[0002] Sand casting is a casting method that uses sand as the main molding material to prepare the mold. Due to the characteristics of sand casting, it is not limited by the shape, size, complexity and alloy type of parts, and has a short production cycle and low cost. Therefore, sand casting is still the most widely used casting method in casting production. Coated sand casting is a type of sand casting. The use of coated sand to produce coated sand castings is a casting method with low energy consumption, especially the recycling and use of waste sand. The coated sand casting process uses a mold to form the sand mold under high pressure. After the coated sand is baked under high temperature and high pressure in the mold, it is quickly formed, and there is a molten iron flow channel in the sand mold. The shape of the flow channel is also the shape of the casting. In the foundry workshop, the sand core is placed in a designated box, and high-temperature molten iron is poured in from the pouring port, which can slowly evaporate the glue on the surface of the sand core. After cooling, the sand core becomes loose sand, and the corresponding casting is obtained.

[0003] At present, for horseshoe-shaped castings on automobiles, the coated sand molds used generally adopt a one-mold four-piece design, which has low production efficiency and low utilization rate of coated sand, and is not conducive to controlling production costs. Utility Model Content

[0004] The utility model aims at the technical problems existing in the coated sand mold of the horseshoe-shaped casting, and proposes a high-efficiency one-mold-multiple-piece coated sand mold which has reasonable design, simple structure, high production efficiency and is conducive to reducing production costs.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the utility model provides an efficient one-mold multi-piece coated sand mold, including a first mold and a second mold, the first mold including a first mold plate, the first mold plate is a return-shaped structure and a first template is arranged within its return-shaped range, 30 horseshoe-shaped first models are arranged on the first template and are distributed in a determinant, a first casting process structure with an I-shaped distribution is arranged between the first models, and an exhaust hole is arranged on the first casting process structure; the second mold includes a second mold plate, the second mold plate is a return-shaped structure and a second template is arranged within its return-shaped range, 30 horseshoe-shaped second models are arranged on the second template, a casting workpiece mold is arranged on the surface of the second model, the 30 second models are distributed in a determinant and a second casting process structure with an X-shaped distribution is arranged between adjacent second models.

[0006] Preferably, the 30 first models are distributed in 4 rows and 8 columns, with the number of first models in one column being 2, and the 30 second models are distributed in 4 rows and 8 columns, with the number of second models in one column being 2.

[0007] Preferably, the first casting process structure comprises three sections of I-shaped flow channels, a plurality of conical casting wells are arranged on the flow channels at the head and tail ends, and the exhaust holes are arranged on the flow channel in the middle.

[0008] Preferably, the second casting process structure comprises an X-shaped runner, the center of which is located on the second template and corresponds to the position of the casting well on the first template, and a hemispherical profile is provided at the center of the X-shaped runner.

[0009] Compared with the prior art, the advantages and positive effects of the utility model are:

[0010] 1. The utility model provides an efficient one-mold multi-piece coated sand mold. By designing 30 first models and second models on the first template and second template of the first mold and the second mold, a production volume of 30 pieces in one mold can be achieved. Moreover, the combined structure of the template and the template can facilitate the replacement of the template. While ensuring product quality, costs are saved and production efficiency is effectively improved. In addition, the utility model has a reasonable design, a simple structure, strong practicality, and a high utilization rate, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 An axonometric view of a first mold provided in an embodiment;

[0013] Figure 2 An axonometric view of a first mold provided in an embodiment;

[0014] Figure 3 An axonometric view of a first mold (without a first template) provided in an embodiment;

[0015] Figure 4 An axonometric view of a second mold (without a second mold plate) provided in an embodiment;

[0016] In the above figures, 1. first mold; 11. first mold plate; 12. first template; 13. first model; 14. first casting process structure; 14a. exhaust hole; 14b. runner; 14c. casting well; 2. second mold; 21. second mold plate; 22. second template; 23. second model; 24. casting workpiece mold; 25. second casting process structure; 25a. X-shaped runner; 25b. hemispherical surface. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Examples, such as Figures 1 to 4 As shown, the utility model provides an efficient one-mold multi-piece coated sand mold, comprising a first mold 1 and a second mold 2, the first mold 1 comprising a first mold plate 11, the first mold plate 11 is a return-shaped structure and a first template 12 is arranged within its return-shaped range, 30 horseshoe-shaped first models 13 are arranged on the first template 12 and are distributed in a determinant, a first casting process structure 14 with an I-shaped distribution is arranged between the first models 13, and an exhaust hole 14a is arranged on the first casting process structure 14; the second mold 2 comprises a second mold plate 21, the second mold plate 21 is a return-shaped structure and a second template 22 is arranged within its return-shaped range, 30 horseshoe-shaped second models 23 are arranged on the second template 22, a casting workpiece mold 24 is arranged on the surface of the second model 23, the 30 second models 23 are distributed in a determinant and a second casting process structure 25 with an X-shaped distribution is arranged between adjacent second models 23. The first casting process structure 14 and the second casting process structure 25 can make the produced sand mold have a casting port, which is convenient for casting operation. The casting workpiece mold 24 can make the produced sand mold have a mold, so that the final cast workpiece has a specified mold and serial number.

[0020] The utility model can realize the production volume of 30 coated sand molds in one mold by designing 30 first models 13 and second models 23 on the first template 12 and second template 22 of the first mold 1 and the second mold 2. The two sets of sand molds after production can be used to cast and produce 30 horseshoe-shaped workpieces at one time, which saves costs and effectively improves production efficiency while ensuring product quality. Furthermore, the actual shapes of the first model 13 and the second model 23 can be designed according to casting needs. For example, the first mold plate 11 of the first mold 1 and the first template 12 adopt a combined structure to facilitate the replacement of the first template 12 to replace the first model 13 that meets the casting requirements; the second mold plate 21 of the second mold 2 and the second template 22 adopt a combined structure to facilitate the replacement of the second template 22 to replace the second model 23 that meets the casting requirements.

[0021] In order to improve the distribution uniformity of the first model 13 and the second model 23, taking into account the characteristics of the first casting process structure 14, the utility model distributes 30 first models 13 in 4 rows and 8 columns, and the number of first models 13 in one column is 2, and the number of first models 13 in other columns is 4, and 30 second models 23 are distributed in 4 rows and 8 columns, and the number of second models 23 in one column is 2, and the number of second models 23 in other columns is 4, so that the first template 12 and the second template 22 have a fixed arrangement; because the first model 13 and the second model 23 both need to be designed with a horseshoe-shaped structure to meet the casting requirements, the horseshoe direction of the first model 13 and the second model 23 can be reasonably designed in the actual arrangement, such as Figure 1 As shown, the first models 13 of adjacent rows are opposite or facing each other, as shown in FIG. Figure 2 As shown, the second patterns 23 of adjacent rows are opposite or facing away from each other.

[0022] To match the arrangement of the first model 13 on the first template 12, the first casting process structure 14 provided by the utility model includes three sections of I-shaped flow channels 14b, and a plurality of conical casting wells 14c are arranged on the flow channels 14b located at the head end and the tail end. The exhaust hole 14a is arranged on the flow channel 14b located in the middle, and the flow channel 14b is connected to the first model 13.

[0023] In order to match the arrangement of the second model 23 on the second template 22, and considering the correspondence of the sand mold in the final casting process, the second casting process structure 25 also matches the first casting process structure 14. The second casting process structure 25 includes an X-shaped flow channel 25a, the center of which is located on the second template 22 and corresponds to the position of the casting well 14c on the first template 12. A hemispherical mold surface 25b is provided at the center of the X-shaped flow channel 25a, and the X-shaped flow channel 25a is connected to the second model 23. In this way, the sand mold produced by the first mold 1 and the second mold 2 can form a relatively complete sand mold, synthesize a complete casting cavity, and form a casting port at the location of the casting well 14c and the hemispherical mold surface 25b, thereby ensuring the reasonable realization of the casting operation.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An efficient one-mold multi-piece coated sand mold, comprising a first mold and a second mold, characterized in that: The first mold includes a first mold plate, which is a circular structure and a first template is arranged within its circular range, 30 horseshoe-shaped first models are arranged on the first template and are distributed in a determinant, a first casting process structure with an I-shaped distribution is arranged between the first models, and an exhaust hole is arranged on the first casting process structure; the second mold includes a second mold plate, which is a circular structure and a second template is arranged within its circular range, 30 horseshoe-shaped second models are arranged on the second template, a casting workpiece mold is arranged on the surface of the second model, the 30 second models are distributed in a determinant, and a second casting process structure with an X-shaped distribution is arranged between adjacent second models.

2. The high-efficiency one-mold-multiple-piece coated sand mold according to claim 1, characterized in that: The 30 first models are distributed in 4 rows and 8 columns, with the number of first models in one column being 2, and the 30 second models are distributed in 4 rows and 8 columns, with the number of second models in one column being 2.

3. The high-efficiency one-mold-multiple-piece coated sand mold according to claim 2, characterized in that: The first casting process structure comprises three sections of I-shaped flow channels, a plurality of conical casting wells are arranged on the flow channels at the head end and the tail end, and the exhaust hole is arranged on the flow channel in the middle.

4. The high-efficiency one-mold-multiple-piece coated sand mold according to claim 3, characterized in that: The second casting process structure comprises an X-shaped flow channel, the distribution position of the center of the X-shaped flow channel on the second template corresponds to the position of the casting well on the first template, and a hemispherical profile is arranged at the center of the X-shaped flow channel.

Images