CN204817989U - A die-casting mold for precision die-casting parts - Google Patents

Abstract

The utility model discloses a die casting die for precision die castings, which comprises a front die core, a rear die core and a thimble, wherein the front die core is provided with a first die cavity and an inner sprue; the rear die core is provided with a second die cavity; the second die cavity comprises a plurality of product molding cavities, a pouring channel communicated with the product molding cavities and the inner pouring gate, and an overflow groove communicated with the product molding cavities; a plurality of jacks matched with the ejector pins are formed at the bottom of the overflow groove; the thimble is inserted into the jack. The utility model discloses during the implementation, utilize the overflow launder and the cinder ladle of watering and die-casting clout to make the product that product shaping intracavity processing obtained netted linking to each other, utilize the thimble to cooperate with the cinder ladle in the overflow launder, carry out the roof pressure to the cinder ladle, and then make the whole ejection of compact of a plurality of products, avoided the direct contact of thimble with the product, avoided the production of burr.

Description

A die-casting mold for precision die-casting parts

technical field

The utility model relates to a die-casting die, in particular to a die-casting die which can realize burr-free ejection of products when precision die-casting parts are discharged.

Background technique

Many die-casting parts require high dimensional accuracy. In the existing die-casting molds, the slag bag connected to the product is separated from the slag bag independently. On the product, it touches and cooperates with the outer surface of the product, and the product is ejected through the ejector rod. If the ejector rod is moved to the slag bag, the existing slag bag structure is not strong enough, and the bag is easily separated from the product when jacking up and discharging, resulting in failure of discharging.

Due to the limitations of the current die-casting mold structure design, after the ejector pin ejects the product, there will be burrs on the contact position between the product and the ejector pin, which will affect the subsequent assembly and use of the product. Therefore, in the actual production process, often It is also necessary to increase the deburring process, which wastes a lot of manpower and material resources, increases the production cost, and cannot meet the current requirements of enterprises for mass-automated production of products.

Utility model content

The purpose of the utility model is to overcome the disadvantages of the existing die-casting molds in discharging materials, and provide a die-casting mold for precision die-casting parts.

In order to achieve the above object, the technical solution adopted in the utility model is:

A die-casting mold for precision die-casting parts, comprising a front mold core, a rear mold core, and a thimble, and a first mold cavity and an inner gate are opened on the front mold core;

A second mold cavity is opened on the rear mold core;

The second mold cavity includes several product molding cavities, runners communicating with the product molding cavities and ingates, and overflow grooves communicating with several product molding cavities;

The bottom of the overflow tank is provided with a number of sockets for matching with thimbles;

The thimble is inserted into the socket.

Furthermore, the bottom surface of the runner is provided with a plurality of sockets for matching with thimbles, and a thimble is inserted into the sockets.

When the utility model is implemented, the slag bag of the overflow tank and the sprue and the remaining material of die-casting are used to connect the products processed in the product forming cavity in a net shape, and the thimble is used to cooperate with the slag bag in the overflow tank to carry out the slag bag Top pressure, and then make several products out of the whole, avoiding the direct contact between the thimble and the product, and avoiding the generation of burrs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the utility model.

The labels in the figure are:

(1) Front mold core

(2) Rear mold core

(3) Thimble

(4) Ingate

(5) The first cavity

(6) Second cavity

(7) Product molding cavity

(8) Sprue

(9) Overflow tank

(10) PRODUCTS.

Detailed ways

For the convenience of further description of the utility model, an embodiment is given in conjunction with the accompanying drawings to further illustrate the utility model.

Example:

As shown in Figures 1 and 2, the utility model includes a front mold core 1, a rear mold core 2, and a thimble 3. The front mold core 1 is provided with a first mold cavity 5 and an ingate 4; 2 is provided with a second mold cavity 6; the second mold cavity 6 includes several product forming cavities 7, runners 8 communicating with the product forming cavities 7 and ingates 5, and overflows communicating with the product forming cavities 7 Groove 9; the bottom of the overflow tank 9 is provided with a number of jacks that cooperate with the thimbles 3; the thimbles 3 are inserted into the jacks.

The above is only a preferred implementation of the present utility model, and does not limit the present utility model in any form. Any skilled person who is familiar with this field may use the above technical content to change or modify it into an equivalent implementation of equivalent changes. For example, here, any simple modifications, equivalent changes and amendments made to the above embodiments according to the technical essence of the present utility model without departing from the technical solution content of the present utility model still belong to the scope of the technical method of the present utility model .

Claims (1)

1. a die casting for accurate die casting, is characterized in that: comprise front cavity, rear cavity, thimble, described front cavity has the first die cavity and ingate; Described rear cavity has the second die cavity; The overflow launder that described second die cavity comprises some formed product chambeies, the running channel be communicated with formed product chamber and ingate and is communicated with some formed product chambeies; Some jacks coordinated with thimble are had at the bottom of described overflow launder; Described thimble inserts jack; Described running channel bottom surface has some jacks coordinated with thimble, is inserted with a thimble in jack.