Casting mold capable of uniformly cooling at constant speed

Abstract

The utility model discloses a casting mould capable of uniformly cooling at constant speed, which comprises an upper mould and a lower mould, an upper forming cavity and a lower forming cavity are respectively arranged on opposite sides of the upper mould and the lower mould, and a sprue spreader extending into the lower forming cavity is arranged at the center of the lower mould. A plurality of upper cooling channels with the wall thickness equal to that of the upper forming cavity are formed in the periphery of the upper forming cavity in the circumferential direction, a plurality of lower cooling channels with the wall thickness equal to that of the lower forming cavity are formed in the periphery of the lower forming cavity in the circumferential direction, and the upper cooling channels and the lower cooling channels are each provided with a cooling assembly communicated with the upper cooling channels and the lower cooling channels. A plurality of cooling channels with the same wall thickness as the forming cavities are distributed in the upper forming cavity and the lower forming cavity in the circumferential direction, when cooling media are discharged into the cooling channels from the outside, all part structures of a product can be uniformly and rapidly cooled at the same time, and therefore the product with the high-performance internal structure is obtained.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting molds, in particular to a casting mold with constant speed and uniform cooling. Background Art

[0002] The molds for casting wheels are generally divided into low-pressure casting wheel molds and gravity casting wheel molds. Most existing motorcycle wheel factories still use gravity casting to manufacture motorcycle wheels. This is because the gravity casting process of motorcycle wheels has the advantages of simple process, easy control, low equipment investment cost, short mold development cycle, better hub spoke performance than low-pressure casting, and high hub density. Compared with low-pressure casting, gravity casting also has the characteristics of large amount of aluminum used in runners and risers for shrinkage feeding.

[0003] Currently, with the market demanding diversified developments, the shape and structure design of aluminum wheels are becoming increasingly complex, and their production is becoming increasingly difficult. In order to ensure the forming rate of aluminum wheels, cooling rings are designed on the upper and lower dies to achieve rapid cooling of the internal structure using external media. However, due to the different wall thicknesses at different locations in the aluminum wheel forming cavity, using cooling rings alone to achieve cooling cannot guarantee cooling uniformity at each location, which will affect the forming quality of the product and leaves room for improvement. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model aims to provide a casting mold with constant speed and uniform cooling.

[0005] The technical solution adopted by the utility model is as follows: a casting mold with constant speed and uniform cooling, comprising an upper mold and a lower mold, wherein an upper molding cavity and a lower molding cavity are respectively opened on opposite sides of the upper mold and the lower mold, a diverter cone is provided in the center of the lower mold to extend into the lower molding cavity, a plurality of upper cooling channels with the same wall thickness as the upper molding cavity are opened in the circumferential direction of the outer periphery of the upper molding cavity, a plurality of lower cooling channels with the same wall thickness as the lower molding cavity are opened in the circumferential direction of the outer periphery of the lower molding cavity, and a cooling component connected to the upper cooling channel and the lower cooling channel is respectively provided.

[0006] In a preferred embodiment, the cooling component includes a cooling main pipe and multiple cooling branch pipes, the multiple cooling branch pipes are connected to the cooling main pipe, the multiple cooling branch pipes respectively extend into the upper cooling channel and the lower cooling channel, and the cooling main pipe is connected to an external water cooling or air cooling system.

[0007] In a preferred embodiment, a riser communicating with the upper forming cavity is provided at the center of the upper end of the upper mold, the riser is coaxially arranged with the diverter cone, and the diverter cone is generally in the shape of a cone that is narrow at the top and wide at the bottom.

[0008] In a preferred embodiment, a lower mold mounting plate is detachably mounted on the bottom of the lower mold, a hole is opened on the lower mold mounting plate to allow the cooling main pipe to extend therethrough, and a plurality of guide blocks are provided on the upper end of the lower mold mounting plate.

[0009] In a preferred embodiment, the periphery of the upper mold and the lower mold are both provided with a Haver mold, and the bottom of the Haver mold is provided with a guide groove that cooperates with the guide block.

[0010] In a preferred embodiment, it also includes a base plate, the upper end of the base plate is symmetrically provided with support columns, the top of the support columns is installed with guide columns, and a push rod push plate and a push rod fixing plate are also provided above the base plate, and the push rod push plate and the push rod fixing plate are embedded with guide sleeves that can guide sliding on the guide columns.

[0011] In a preferred embodiment, a plurality of ejector pins extending into the lower molding cavity are spaced apart at the top end of the ejector pin push plate.

[0012] In summary, due to the adoption of the above-mentioned technical solution, the beneficial effect of the utility model is that a plurality of cooling channels with the same wall thickness as the molding cavity are distributed circumferentially in the upper molding cavity and the lower molding cavity. When the cooling medium is discharged into the cooling channel from the outside, the structures of various parts of the product can be cooled evenly and quickly at the same time, thereby obtaining a product with high-performance internal structure, which has advantages that current molds do not have and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional plan structure of the entire utility model.

[0014] Markings in the figure: 1-base plate, 2-support column, 3-guide column, 4-top rod fixing plate, 5-cooling main pipe, 6-top rod, 7-top rod push plate, 8-lower mold mounting plate, 9-riser, 10-diverter cone, 11-upper mold, 12-lower cooling channel, 13-guide block, 14-have mold, 15-upper cooling channel, 16-lower mold, 17-cooling branch pipe. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] A casting mold with uniform cooling speed, referring to Figure 1, including an upper mold 11 and a lower mold 16, wherein the upper mold 11 and the lower mold 16 are respectively provided with an upper molding cavity and a lower molding cavity on opposite sides, and a diverter cone 10 is provided in the center of the lower mold 16 to extend into the lower molding cavity, and a plurality of upper cooling channels 15 with the same wall thickness as the upper molding cavity are circumferentially provided on the outer periphery of the upper molding cavity, and a plurality of lower cooling channels 12 with the same wall thickness as the lower molding cavity are circumferentially provided on the outer periphery of the lower molding cavity, respectively provided with a cooling component connected thereto, and a plurality of cooling channels with the same wall thickness as the molding cavity are circumferentially distributed in the upper molding cavity and the lower molding cavity. When the external cooling component discharges the cooling medium into the cooling channel, the structures of various parts of the product in the molding cavity can be cooled evenly and quickly at the same time, and a finer structure can be obtained, thereby obtaining a product with high-performance internal structure.

[0017] A set of cooling pipes may also be additionally designed at the center of the diverter cone 10 .

[0018] Furthermore, the cooling assembly includes a cooling main pipe 5 and multiple cooling branch pipes 17. The multiple cooling branch pipes 17 are connected to the cooling main pipe 5. The multiple cooling branch pipes 17 extend into the upper cooling channel 15 (not shown in the figure) and the lower cooling channel 12 respectively. The cooling main pipe 5 is connected to an external water cooling or air cooling system (not shown in the figure). The current water cooling or air cooling system of the mold is already a well-known technology and will not be elaborated on in detail here.

[0019] Furthermore, a riser 9 connected to the upper forming cavity is provided at the center of the upper end of the upper mold 11. The riser 9 and the diverter cone 10 are coaxially arranged. The diverter cone 10 is generally a cone with a narrow upper part and a wide lower part. During the casting process of the above design, the aluminum liquid is discharged along the riser 9 into the diverter cone 10, and then the aluminum liquid is diverted to various positions in the forming cavity through the diverter cone 10, thereby improving the forming quality of the internal structure of the rim.

[0020] Furthermore, a lower mold mounting plate 8 is detachably mounted on the bottom of the lower mold 16, and a hole is provided on the lower mold mounting plate 8 for the cooling main pipe 5 to extend into. A plurality of guide blocks 13 are provided on the upper end of the lower mold mounting plate 8, and a Haver mold 14 is provided on the periphery of the upper mold 11 and the lower mold 16. A guide groove is provided at the bottom of the Haver mold 14 to cooperate with the guide block 13. The cooperation between the guide block 13 and the guide groove can ensure the installation accuracy of the Haver mold 14.

[0021] Furthermore, it also includes a base plate 1, and support columns 2 are symmetrically arranged on the upper end of the base plate 1, and guide columns 3 are installed on the top of the support columns 2. A push rod plate 7 and a push rod fixing plate 4 are also arranged above the base plate 1. The push rod plate 7 and the push rod fixing plate 4 are embedded with guide sleeves that can guide and slide on the guide columns 3. A plurality of push rods 6 extending into the lower molding cavity are arranged at intervals on the top of the push rod plate 7. After the product molding is completed, the upper mold 11 moves upward to the lower mold 16, and then the external pushing mechanism pushes the push rod plate 7 upward. Under the action of the driving force, the push rod 6 moves upward, and the molded product can be ejected upward, and automatic stripping operation can be realized.

[0022] It should be mentioned that a pushing mechanism (such as hydraulic pushing) is also designed at the bottom of the ejector push plate 7 and the top of the upper mold to realize the opening and closing of the mold and the ejection of the material.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A casting mold with uniform cooling at a constant speed, characterized in that: It includes an upper mold and a lower mold, wherein an upper molding cavity and a lower molding cavity are respectively opened on opposite sides of the upper mold and the lower mold, a diverter cone is provided in the center of the lower mold to extend into the lower molding cavity, a plurality of upper cooling channels with the same wall thickness as the upper molding cavity are opened in the circumference of the outer periphery of the upper molding cavity, a plurality of lower cooling channels with the same wall thickness as the lower molding cavity are opened in the circumference of the outer periphery of the lower molding cavity, and a cooling component connected to the upper cooling channel and the lower cooling channel is respectively provided.

2. A casting mold with uniform cooling at a constant speed as claimed in claim 1, characterized in that: The cooling assembly includes a cooling main pipe and multiple cooling branches, the multiple cooling branches are connected to the cooling main pipe, the multiple cooling branches extend into the upper cooling channel and the lower cooling channel respectively, and the cooling main pipe is connected to an external water cooling or air cooling system.

3. A casting mold with uniform cooling at a constant speed as claimed in claim 1, characterized in that: A riser communicating with the upper forming cavity is provided at the center of the upper end of the upper mold. The riser is coaxially arranged with the diverter cone. The diverter cone is generally in the shape of a cone that is narrow at the top and wide at the bottom.

4. A casting mold with uniform cooling at a constant speed as claimed in claim 2, characterized in that: A lower mold mounting plate is detachably mounted on the bottom of the lower mold. A hole is provided on the lower mold mounting plate for the cooling main pipe to extend into. A plurality of guide blocks are provided on the upper end of the lower mold mounting plate.

5. A casting mold with uniform cooling at a constant speed as claimed in claim 4, characterized in that: The peripheries of the upper mold and the lower mold are both provided with Harv molds, and the bottom of the Harv mold is provided with a guide groove which is matched with the guide block.

6. A casting mold with uniform cooling at a constant speed as claimed in claim 1, characterized in that: It also includes a base plate, the upper end of which is symmetrically provided with support columns, the top of which is equipped with guide columns, and a push rod plate and a push rod fixing plate are also provided above the base plate, wherein the push rod plate and the push rod fixing plate are embedded with guide sleeves that can guide and slide on the guide columns.

7. A casting mold with uniform cooling at a constant speed as claimed in claim 6, characterized in that: A plurality of ejector pins extending into the lower forming cavity are spaced apart at the top end of the ejector pin push plate.

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