CN212704294U

CN212704294U - Die casting die convenient to sheet position shaping on work piece

Info

Publication number: CN212704294U
Application number: CN202021657372.9U
Authority: CN
Inventors: 罗勇; 杨森宇; 张开荣; 潘加君; 王莉
Original assignee: Chongqing Dongke Mould Manufacturing Co ltd
Current assignee: Chongqing Dongke Mould Manufacturing Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-16
Anticipated expiration: 2030-08-11

Abstract

The utility model belongs to the technical field of die casting die, specifically be convenient for the fashioned die casting die of lamellar position on the work piece, including moving die body and quiet die body, it becomes the die cavity to move to be equipped with between die body and the quiet die body, it is regional to become the lamellar position shaping that the intracavity is equipped with the work piece, the lateral part that becomes the die cavity is provided with the ingate, be provided with the stub bar on the quiet die body, it waters to be provided with the branch between stub bar and the ingate, divide and water one section of neighbouring ingate and be the orientation the slope section of the regional slope of lamellar position shaping. The scheme solves the problem that the sheet part of the workpiece is difficult to form in the prior art.

Description

Die casting die convenient to sheet position shaping on work piece

Technical Field

The utility model belongs to the technical field of die casting die, specifically be convenient for the fashioned die casting die of lamellar position on the work piece.

Background

The die casting mold is a mold dedicated to a die casting process, and a casting is formed by filling a molten metal into a cavity of the die casting mold at a certain speed and pressure. As shown in fig. 1, the conventional die casting mold comprises a movable mold body and a stationary mold body, a molding cavity a5 is arranged between the movable mold body and the stationary mold body, an inner gate a4 is arranged at the side of the molding cavity a5, a stub bar a1 for communicating with an injection chamber of an injection machine is arranged on the stationary mold body, a main runner a2 and a plurality of branch runners a3 are arranged between the inner gate a4 and the stub bar a1, each branch runner a3 is communicated with a corresponding inner gate a4, and all the branch runners a3 are collected and communicated with the main runner a2 and then communicated with the stub bar a1 through the main runner a 2.

When a die-casting die designed by the conventional design mode is used for producing workpieces with sheet parts and large sheet parts, the forming area of the sheet parts of the workpieces in the forming cavity of the die is easy to have an under-casting phenomenon, so that the sheet parts of the workpieces are easy to have forming defects, and the whole workpieces are difficult to form. For example, when a 5G base station radiator shell is produced by die casting, as shown in fig. 2, the fins a on the radiator shell are sheet-like parts on a workpiece, the thickness of the fins a on the radiator shell is 1-2 mm, the height reaches 80mm, and the spacing distance between adjacent fins a is about 10mm, when a die casting machine of 1600 tons is used for production, the forming rate of qualified products of products is below 70%, so that the die casting machine of 2000 tons is used for production, the forming rate of the qualified products of products is improved to about 80%, but the forming rate is still at a low level for a manufacturing enterprise, and if the die casting pressure is continuously increased, the service life of the die casting die is greatly shortened, which leads to the increase of production cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die casting die convenient to sheet position shaping on the work piece.

In order to achieve the purpose, the utility model discloses a basic scheme provides a die casting die convenient to sheet position shaping on work piece, including moving die body and quiet die body, it becomes the die cavity to move to be equipped with between die body and the quiet die body, it is regional to become the sheet position shaping that the die cavity was equipped with the work piece, the lateral part in die cavity is provided with the ingate, be provided with the stub bar on the quiet die body, it waters to be provided with the branch between stub bar and the ingate, it is the orientation to divide one section of watering adjacent ingate the slope section of sheet position shaping region slope.

The principle and the beneficial effect of the basic scheme are as follows: through the arrangement of the inclined section, the molten metal has kinetic energy facing the forming area of the sheet-shaped part in the forming cavity when flowing through the inclined section, so that the molten metal is favorably filled into the forming area, the forming quality of the sheet-shaped part of the workpiece is improved, and the forming rate of qualified products of the whole workpiece is improved.

Furthermore, the included angle between the central line direction of the inclined section and the length direction of the forming area of the sheet-shaped part in the forming cavity is 25-35 degrees.

Further, the included angle is 30 °. The design of an included angle of 30 degrees is adopted, so that the measurement of the angle is more convenient when the inclined section is manufactured; simultaneously, behind the slope section, its most kinetic energy still is towards the length direction in lamellar position shaping region in the shaping chamber, is favorable to guaranteeing the quick filling shaping chamber of molten metal, and the partial kinetic energy of molten metal towards the direction of height in lamellar position shaping region has can satisfy the lamellar position of work piece at the better shaping of its direction of height simultaneously to the shaping efficiency and the shaping quality that make the work piece can both be taken into account.

Further, the branch pouring channels are independently communicated with the stub bars. By adopting the arrangement mode, the mode that the main pouring channel is communicated with the branch pouring channels and the stub bars in the prior art is omitted, so that the pressure loss of molten metal in the main pouring channel is reduced, and the pressure of the molten metal in each branch pouring channel is ensured; through the cooperation with the inclined section, when molten metal enters the ingate from the branch pouring gate, the speed and the pressure of a forming area of the sheet part in the forming cavity are ensured, the forming quality of the sheet part on the workpiece is improved, and the forming rate of qualified products of the whole workpiece is improved.

Drawings

FIG. 1 is a schematic structural diagram of a material head and a forming cavity of a die-casting mold in the prior art;

FIG. 2 is a schematic structural diagram of a 5G base station radiator housing;

FIG. 3 is a state diagram of the movable mold body and the stationary mold body when the movable mold body and the stationary mold body are assembled;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a perspective view of the middle molding cavity, the branch runner and the stub bar of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the movable mould frame 11, the mould core 12, the radiating fin forming area 121, the static mould body 2, the branch pouring channel 3, the inclined section 31, the stub bar 4 and the inner pouring gate 5.

The embodiment is substantially as shown in figures 3, 4 and 5: die casting die convenient to sheet position shaping on work piece to the die casting die who is used for producing 5G basic station radiator shell is the example, and this die casting die includes movable mould body and quiet mould 2, is equipped with the shaping chamber between movable mould body and the quiet mould 2, and movable mould body includes movable mould frame 11 and mold core 12 that has the shaping chamber, and sheet position shaping region is in the mold core 12 of movable mould body promptly fin shaping region 121 in the shaping chamber. Six inner gates 5 are arranged at the side part of the molding cavity, a stub bar 4 is arranged on the static die body 2, and a branch runner 3 is independently communicated between each inner gate 5 and the stub bar 4. The section of the branch runner 3 adjacent to the ingate 5 is an inclined section 31 inclined towards the fin forming area 121 in the forming cavity, and the included angle alpha between the central line direction of the inclined section 31 and the length direction of the fin forming area 121 is preferably 30 degrees, and of course, any angle between 25 degrees and 35 degrees is selected as the included angle alpha, so that the forming is good and the forming efficiency is high.

The specific implementation process is as follows: after the movable die body and the static die body 2 are assembled, molten metal enters the forming cavity through the stub bar 4, the branch pouring gate 3 and the inner pouring gate 5 in sequence under the action of the injection machine, so that the forming cavity is filled and a workpiece is formed. Data analysis shows that the qualified product molding rate of the product reaches over 95 percent when a die casting machine with the model of 2000 tons is used for production.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Die casting die convenient to sheet position shaping on work piece, including moving die body and quiet die body, it becomes the die cavity to move to be equipped with between die body and the quiet die body, it is regional to become the sheet position shaping that the die cavity is equipped with the work piece, the lateral part that becomes the die cavity is provided with the ingate, be provided with the stub bar on the quiet die body, it waters its characterized in that to be provided with the branch between stub bar and the ingate: and a section of the branch pouring channel adjacent to the inner pouring gate is an inclined section inclined towards the sheet-shaped part forming area.

2. A die-casting die for facilitating the formation of a sheet-like portion on a workpiece as recited in claim 1, wherein: the included angle between the central line direction of the inclined section and the length direction of the forming area of the sheet-shaped part in the forming cavity is 25-35 degrees.

3. A die-casting die for facilitating the formation of a sheet-like portion on a workpiece as recited in claim 2, wherein: the included angle is 30 degrees.

4. A die-casting die for facilitating the formation of a sheet-like portion on a workpiece as claimed in any one of claims 1 to 3, wherein: the branch pouring channels are independently communicated with the stub bar.