Middle plate casting mold

Abstract

The utility model provides a middle plate casting mould which comprises an upper mould and a lower mould, a sand mould component is arranged between the upper mould and the lower mould, three rows of bottom forming cavity groups are arranged on the lower mould, three rows of top forming cavity groups are arranged on the upper mould corresponding to the lower mould, each row of bottom forming cavity group consists of three bottom symmetrical cavity groups, and the bottom symmetrical cavity groups are arranged on the upper mould. Each row of top forming cavity sets is composed of three top symmetrical cavity sets, a riser assembly is arranged in the middle of each top symmetrical cavity set on the upper mold, a sprue assembly is arranged between two top symmetrical cavity sets of the top forming cavity sets located in the middle row on the upper mold, the bottom symmetrical cavity sets comprise bottom forming cavities arranged in a bilateral symmetry mode, and the bottom forming cavities are arranged in the bottom symmetrical cavity sets in a bilateral symmetry mode. A fixed wedge block set is arranged in the middle of the position, between the two symmetrical bottom forming cavities, of the lower die and comprises fixed wedge blocks which are arranged in a bilateral symmetry mode. The device is reasonable in design, reduces the possibility of generating defects on the surface of the cast sword, improves the production efficiency, and is convenient for specialized medium plate production.

Description

Technical Field

[0001] The utility model relates to a middle plate casting mould. Background Art

[0002] At present, due to the continuous improvement of the quality of life, people's demand for automobiles is increasing, and the number of cars is also increasing. Casting plates are widely used in automobiles, and the production capacity of conventional casting molds is small, which has a great impact on production efficiency. At the same time, the distribution of exhaust holes on conventional casting molds is unreasonable, which can easily cause defects on the surface of castings. Summary of the invention

[0003] In view of this, the purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and provide a middle plate casting mold.

[0004] The present invention is implemented by the following scheme: a middle plate casting mold: comprising an upper mold and a lower mold, a sand mold assembly is arranged between the upper mold and the lower mold, three rows of bottom molding cavity groups are arranged on the lower mold, three rows of top molding cavity groups are arranged on the upper mold corresponding to the lower mold, each row of bottom molding cavity groups is composed of three groups of bottom symmetrical cavity groups, each row of top molding cavity groups is composed of three groups of top symmetrical cavity groups, a riser assembly is arranged in the middle of each top symmetrical cavity group on the upper mold, and a gate assembly is arranged between two of the top symmetrical cavity groups on the top molding cavity groups in the middle row on the upper mold.

[0005] Furthermore, the bottom symmetrical cavity group includes bottom forming cavities symmetrically arranged on the left and right, and a fixed wedge block group is arranged on the lower mold in the middle between the two symmetrical bottom forming cavities, and the fixed wedge block group includes fixed wedge blocks symmetrically arranged on the left and right.

[0006] Furthermore, the top symmetrical cavity group includes top forming cavities that are symmetrically arranged on the left and right, and the riser assembly is arranged on the upper mold and in the middle between the two symmetrical top forming cavities, and the riser assembly corresponds to the middle between the fixed wedge block groups.

[0007] Furthermore, a blocking plate is provided between two adjacent rows of top forming cavity groups on the upper die, and insert teeth are provided on the blocking plate at four corners corresponding to the top symmetrical cavity groups.

[0008] Furthermore, positioning blocks are provided on one side or the other side of the top forming cavity.

[0009] Furthermore, the riser assembly includes a riser column, which is fixed on the upper mold, and a groove is arranged on the lower end of the riser column.

[0010] Furthermore, the upper mold is provided with a plurality of exhaust holes A symmetrically arranged on the left and right sides of the top symmetrical cavity group, the upper mold is provided with a plurality of exhaust holes B around the riser assembly in the top symmetrical cavity group, and the upper mold is provided with an exhaust hole C in the middle of the top molding cavity, and the exhaust holes A, B and C are all provided with honeycomb exhaust plugs.

[0011] Furthermore, the gate assembly includes a gate column, which is fixed on the upper mold, a lower limit block is provided on the lower mold corresponding to the gate column, and positioning blocks are symmetrically provided on the wall surface of the barrier plate on both sides of the gate column on the upper mold.

[0012] Furthermore, the lower mold is provided with an exhaust hole D in the middle of the bottom molding cavity, and the exhaust holes D are all installed with honeycomb exhaust plugs.

[0013] Furthermore, sand-shaped limiting grooves are provided on the bottom molding cavity and the top molding cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects: reasonable design, reducing the possibility of defects on the surface of the sword casting, improving production efficiency, and facilitating specialized middle plate production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the upper mold structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the lower mold structure of the utility model.

[0018] In the figure: 1-upper mold; 2-lower mold; 3-bottom molding cavity group; 4-top molding cavity group; 5-bottom symmetrical cavity group; 6-top symmetrical cavity group; 7-riser assembly; 8-gate assembly; 9-bottom molding cavity; 10-fixed wedge block; 11-top molding cavity; 12-blocking plate; 13-gear; 14-positioning plug; 15-riser column; 16-groove; 17-vent A; 18-vent B; 19-vent C; 20-honeycomb vent plug; 21-gate column; 22-lower limit block; 23-positioning block; 24-vent D; 25-sand-shaped limit groove. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] like Figure 1-3 As shown, a middle plate casting mold: includes an upper mold 1 and a lower mold 2, a sand mold assembly is arranged between the upper mold and the lower mold, the sand mold assembly is a prior art, and is composed of an existing middle plate sand core and external molding sand. Since it is a prior art, it will not be described in detail. Three rows of bottom molding cavity groups 3 are arranged on the lower mold, and three rows of top molding cavity groups 4 are arranged on the upper mold corresponding to the lower mold. Each row of bottom molding cavity groups is composed of three groups of bottom symmetrical cavity groups 5, and each row of top molding cavity groups is composed of three groups of top symmetrical cavity groups 6. A riser assembly 7 is arranged in the middle of each top symmetrical cavity group on the upper mold, and a gate assembly 8 is arranged between two of the top symmetrical cavity groups on the top molding cavity group in the middle row on the upper mold. By reasonably arranging as many molding cavities as possible on one mold, the production efficiency is improved.

[0023] In this example, for the sake of reasonable design, the bottom symmetrical cavity group includes bottom molding cavities 9 which are symmetrically arranged on the left and right, that is, a row of bottom molding cavity groups includes 6 bottom molding cavities, and a fixed wedge block group is arranged on the lower mold in the middle between two symmetrical bottom molding cavities, and the fixed wedge block group includes fixed wedge blocks 10 which are symmetrically arranged on the left and right. The fixed wedge blocks are used to limit the sand cores, and the top symmetrical cavity group includes top molding cavities 11 which are symmetrically arranged on the left and right, that is, a row of top molding cavity groups includes 6 top molding cavities, a total of 18 bottom molding cavities and 18 top molding cavities, so 18 workpieces are formed at one time, and the riser assembly is arranged on the upper mold in the middle between the two symmetrical top molding cavities, and the riser assembly corresponds to the middle between the fixed wedge block groups, that is, a riser is arranged between every two symmetrical workpieces to prevent shrinkage holes, shrinkage, exhaust and slag accumulation.

[0024] In this example, for the sake of reasonable design, a blocking plate 12 is provided between two adjacent rows of top molding cavity groups on the upper mold, and insert teeth 13 are provided on the four corners of the blocking plate corresponding to the top symmetrical cavity groups. The upper mold is fixed to the corresponding position on the sand mold assembly through the blocking plate and the insert teeth. At the same time, the blocking plate can realize the separation of the three rows of molding cavities, further avoiding the connection between the tops of the molding cavities due to sand filling problems.

[0025] In this example, in order to achieve the alignment between the top molding cavity and the sand core, positioning plugs 14 are provided on one side or the other side of the top molding cavity.

[0026] In this example, for the sake of reasonable design, the riser assembly includes a riser column 15, which is fixed on the upper mold. A groove 16 is provided on the lower end of the riser column. The riser assembly is a prior art, so it will not be described in detail.

[0027] In this example, in order to achieve exhaust, the upper mold is symmetrically provided with a plurality of exhaust holes A17 on the left and right sides of the top symmetrical cavity group. Specifically, two exhaust holes A are symmetrically provided on the front and back sides of the left and right sides of a top symmetrical group. The upper mold is provided with a plurality of exhaust holes B18 on the periphery of the riser assembly in the top symmetrical cavity group. Specifically, four exhaust holes B are arranged in an array around the periphery of the riser assembly. The upper mold is provided with an exhaust hole C19 in the middle of the top molding cavity. Specifically, two exhaust holes C are provided in the middle of the top molding cavity. Existing honeycomb exhaust plugs 20 are installed on the exhaust holes A, B and C. At the same time, due to the top row in the middle A gate assembly is arranged between two of the top symmetrical cavity groups on the molding cavity group, so the spacing between two of the three top molding cavity groups in the middle will be smaller than the spacing between other adjacent top molding cavity groups, so only four common exhaust holes A are arranged between these two top molding cavity groups; in this example, an exhaust hole D24 is arranged in the middle of the bottom molding cavity on the lower mold, and specifically, two exhaust holes D are arranged in the middle of the bottom molding cavity, and honeycomb exhaust plugs are arranged on the exhaust holes D, and exhaust holes A, B, C and D are arranged to achieve exhaust during molding, thereby reducing the possibility of defects on the surface of multi-cavity castings.

[0028] In this example, the gate assembly includes a gate column 21, which is fixed on the upper mold. A lower limit block 22 is provided on the lower mold corresponding to the gate column. The gate assembly and the lower limit block are prior art and are components required for the existing gate, so they are not described in detail. In order to facilitate the positioning of the gate assembly, positioning blocks 23 are symmetrically provided on the wall surface of the barrier plate on both sides of the gate column on the upper mold.

[0029] In this example, for the sake of reasonable design, sand-shaped limiting grooves 25 are provided on the bottom molding cavity and the top molding cavity.

[0030] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0031] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.

[0032] If the present invention discloses or involves components or structures 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 one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0033] In addition, the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" used in any of the technical solutions disclosed in the above-mentioned utility model are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent, 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, and therefore cannot be understood as a limitation on this patent. Unless otherwise stated, the terms used to indicate shapes used in any of the technical solutions disclosed in the above-mentioned utility model include shapes that are approximate, similar or close to them.

[0034] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant 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, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A middle plate casting mold, characterized in that: It comprises an upper die and a lower die, a sand mold assembly is arranged between the upper die and the lower die, three rows of bottom molding cavity groups are arranged on the lower die, three rows of top molding cavity groups are arranged on the upper die corresponding to the lower die, each row of bottom molding cavity groups is composed of three groups of bottom symmetrical cavity groups, each row of top molding cavity groups is composed of three groups of top symmetrical cavity groups, a riser assembly is arranged in the middle of each top symmetrical cavity group on the upper die, and a gate assembly is arranged between two of the top symmetrical cavity groups on the top molding cavity groups in the middle row on the upper die.

2. The middle plate casting mold according to claim 1, characterized in that; The bottom symmetrical cavity group includes bottom forming cavities that are symmetrically arranged on the left and right. A fixed wedge block group is arranged on the lower mold in the middle between the two symmetrical bottom forming cavities. The fixed wedge block group includes fixed wedge blocks that are symmetrically arranged on the left and right.

3. The middle plate casting mold according to claim 2, characterized in that; The top symmetrical cavity group includes top forming cavities that are symmetrically arranged on the left and right sides. The riser assembly is arranged on the upper mold and in the middle between the two symmetrical top forming cavities. The riser assembly corresponds to the middle between the fixed wedge block groups.

4. The middle plate casting mold according to claim 3, characterized in that; A blocking plate is arranged between two adjacent rows of top forming cavity groups on the upper die, and insert teeth are arranged on the blocking plate at four corners corresponding to the top symmetrical cavity groups.

5. The middle plate casting mold according to claim 4, characterized in that; Positioning plug blocks are arranged on one side of the top forming cavity.

6. The middle plate casting mold according to claim 5, characterized in that; The riser assembly comprises a riser column, which is fixed on the upper mold, and a groove is arranged on the lower end of the riser column.

7. The middle plate casting mold according to claim 6, characterized in that; The upper mold is provided with a plurality of exhaust holes A symmetrically arranged on the left and right sides of the top symmetrical cavity group, the upper mold is provided with a plurality of exhaust holes B around the riser assembly in the top symmetrical cavity group, the upper mold is provided with an exhaust hole C in the middle of the top molding cavity, and the exhaust holes A, B and C are all provided with honeycomb exhaust plugs.

8. The middle plate casting mold according to claim 7, characterized in that; The gate assembly includes a gate column, which is fixed on the upper mold. A lower limit block is arranged on the lower mold corresponding to the gate column. Positioning blocks are symmetrically arranged on the wall surface of the baffle plate on both sides of the gate column on the upper mold.

9. The middle plate casting mold according to claim 8, characterized in that; The lower mold is provided with an exhaust hole D in the middle of the bottom molding cavity, and the exhaust holes D are all equipped with honeycomb exhaust plugs.

10. The middle plate casting mold according to claim 9, characterized in that; Sand-shaped limiting grooves are arranged on the bottom molding cavity and the top molding cavity.

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