CN202318803U

CN202318803U - Mould structure with quick-replacing core

Info

Publication number: CN202318803U
Application number: CN201120505129XU
Authority: CN
Inventors: 熊孝国
Original assignee: CHONGQING DAJIANG MILLISON DIE-CASTING Co Ltd
Current assignee: CHONGQING DAJIANG MILLISON DIE-CASTING Co Ltd
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-07-11
Anticipated expiration: 2021-12-07

Abstract

The utility model provides a mould structure with a quick-replacing core. The mould structure comprises a mould body, a core body and a countersunk fixing pin, wherein a countersunk through hole is arranged on the mould body and directly faces the core body; the countersunk fixing pin is inserted into the countersunk through hole and radially and fixedly matched with the mould body; a mould frame is pressed on the countersunk fixing pin; the insertion end of the countersunk fixing pin is provided with an internal thread hole along the axis; an external thread is arranged at one end of the core body; the core body is inserted into the countersunk through hole from the other end of the countersunk through hole and screwed in the internal thread hole of the countersunk fixing pin; and the other end of the core body is a clamping end of a wrench. When in use, the core body is simply fixed on the countersunk fixing pin, and the countersunk fixing pin is fixed with the mould body to realize a function of fixing the core body; to replace the core body, the replacement can be realized simply by knocking out the core body; thus the core body is very convenient to replace and mount. Meanwhile, the mould structure also has a simple structure and is convenient to implement and use on the existing mould.

Description

A kind of mould structure of quick change core

Technical field

The utility model relates to a kind of die casting machine or injection machine, relates in particular to the mould structure of quick change core on a kind of die casting machine or the injection machine.

Background technology

Die casting is a kind of common equipment of field shaping technique in the mechanical industry, is a kind of under pressure molten metal bath injection cooling forming in the mould, obtains a kind of industrial machinery of solid metal foundry goods after the die sinking.

Extrusion process need be provided with one or more cores at mold cavity when producing workpiece, all need replacing because core is crooked with fractureing, and general edge core and the mould core of adopting cooperates formation.This mould structure comprises and is positioned at inner core rod with outside framed, forms die cavity in inside behind the core rod matched moulds, and core is engaged in the core rod and extends in the die cavity, framedly adopts other locking mechanism spares locking again after being fastened on the core rod outside.

This existing mould structure; When needs are changed core, need core rod be disassembled with the framed most of member that is connected, core is pounded out in the core rod changed then; Again spare part and core rod are installed then, so exist mold cores to change the defective of inconvenience.

The utility model content

To the above-mentioned deficiency that exists in the above-mentioned prior art, the utility model provides a kind of mould structure of quick change core simple in structure.

The purpose of the utility model is achieved in that a kind of mould structure of quick change core; Comprise die ontology, core body and countersunk head steady pin; Be provided with the countersunk head through hole over against the core body on the said die ontology; Said countersunk head steady pin insert in the countersunk head through hole and with die ontology secure fit radially, framed being pressed on the countersunk head steady pin; The insertion end of said countersunk head steady pin is provided with internal thread hole along axis; One end of said core body is provided with external screw thread; The core body is in the other end of countersunk head through hole inserts the countersunk head through hole and screw the internal thread hole of countersunk head steady pin, and the other end of core body is the bare terminal end of spanner.

As a kind of preferred version of the utility model, the cross section of the bare terminal end of said core body is a regular polygon.

The beneficial effect of the utility model is: during use, only need the core body-fixed on the countersunk head steady pin, the countersunk head steady pin is fixed with die ontology again, realizes the fixedly function of core body; When changing the core body, only need pound out the core body and just can realize changing, so replacing and installation core body are very convenient.Simultaneously, this mould structure also has simple in structure, is convenient on existing mold, implement the advantage of utilization.

Description of drawings

Fig. 1 is a kind of structural representation of mould structure of quick change core;

Fig. 2 is the front view of countersunk head steady pin;

Fig. 3 is the right view of countersunk head steady pin;

Fig. 4 is the front view of core;

Fig. 5 is the front view that core cooperates with the countersunk head steady pin.

In the accompanying drawing: 1-die ontology; 2-core body; 3-countersunk head steady pin; 4-bare terminal end; 5-framed; 6-internal thread hole.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done explanation in further detail.

As shown in Figure 1, a kind of mould structure of quick change core comprises die ontology 1, core body 2 and countersunk head steady pin 3.Be provided with the countersunk head through hole over against core body 2 on the die ontology 1; The structure of countersunk head steady pin 3 as shown in Figures 2 and 3; Countersunk head steady pin 3 insert in the countersunk head through holes and with die ontology 1 radially secure fit (in the present embodiment, cut away a part vertically at the head of countersunk head steady pin 3 and form a plane, insert in the countersunk head through hole after; The plane that forms on the countersunk head through-hole wall cooperates with the plane of countersunk head steady pin 3 heads; Prevent that this countersunk head steady pin 3 from rotating in the countersunk head through hole), framed 5 are pressed on the countersunk head steady pin 3, make this countersunk head steady pin 3 fixing in the axial direction.The insertion end of countersunk head steady pin 3 is provided with internal thread hole 6 along axis; One end of core body 2 is provided with external screw thread; The core main body structure is as shown in Figure 4; Core body 2 is in the other end of countersunk head through hole inserts the countersunk head through hole and screw the internal thread hole 6 of countersunk head steady pin 3, and the other end of core body 2 is the bare terminal end 4 of spanner, and the fit structure of core body and countersunk head steady pin 3 is as shown in Figure 5.

The cross section of the bare terminal end 4 of core body 2 is a regular polygon, and in the present embodiment, the cross section of bare terminal end 4 is a square, and spanner is clamped on the bare terminal end 4 that cross section is a square, is beneficial to the spanner application of force and tightens core body 2.

During use, only need core body 2 is fixed on the countersunk head steady pin 3, countersunk head steady pin 3 is fixing with die ontology 1 again, realizes the fixedly function of core body 2; When changing core body 2, only need pound out core body 2 and just can realize changing, so replacing and installation core body are very convenient.Simultaneously, this mould structure also has simple in structure, is convenient on existing mold, implement the advantage of utilization.

Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. the mould structure of a quick change core; Comprise die ontology (1) and core body (2); It is characterized in that: also comprise countersunk head steady pin (3); Said die ontology (1) is gone up and to be provided with the countersunk head through hole over against core body (2), said countersunk head steady pin (3) insert in the countersunk head through hole and with die ontology (1) secure fit radially, framed (5) are pressed on the countersunk head steady pin (3); The insertion end of said countersunk head steady pin (3) is provided with internal thread hole (6) along axis; One end of said core body (2) is provided with external screw thread; Core body (2) is in the other end of countersunk head through hole inserts the countersunk head through hole and screw the internal thread hole (6) of countersunk head steady pin (3), and the other end of core body (2) is the bare terminal end (4) of spanner.

2. the mould structure of a kind of quick change core according to claim 1 is characterized in that: the cross section of the bare terminal end (4) of said core body (2) is a regular polygon.