CN101829773B

CN101829773B - Shrinkage die with upper loose core

Info

Publication number: CN101829773B
Application number: CN2010100025373A
Authority: CN
Inventors: 甘仲华; 吴耀荣
Original assignee: GUANGZHOU DIE AND MOULD MANUFACTURING Co Ltd
Current assignee: GUANGZHOU DIE AND MOULD MANUFACTURING Co Ltd
Priority date: 2010-01-10
Filing date: 2010-01-10
Publication date: 2012-05-30
Anticipated expiration: 2030-01-10
Also published as: CN101829773A

Abstract

The invention discloses a shrinkage die with an upper loose core. The shrinkage die comprises a fixed die and a moving die which can be combined with the fixed die, wherein the fixed die is inlaid with a plurality of fixed die inserts which can be mutually spliced, and the moving die is inlaid with a plurality of moving die inserts which can be mutually spliced; and the upper end of the moving die is provided with an upper slide block, the upper slide block is provided with a plurality of upper slide block cores which can be mutually spliced, and the upper slide block and the upper slide block cores form a shrinkage upper loose core. In the invention, the shrinkage die with the upper loose core can carry out adaptive combined change on the upper slide block cores of the upper loose core when the positions of the fixed die inserts and the moving die inserts change, i.e. the combined length of the inserts changes, thus obtaining the products which are in an upper loose core shape and have different length specifications, meeting the actual production needs of enterprises, avoiding subsequent machining procedures, lowering the cost and greatly improving the production efficiency.

Description

The shrinkage die of loosing core on having

Technical field

The present invention relates to a kind of mould, particularly a kind of shrinkage die.

Background technology

At present, owing to loose core and to shrink on employed in the mould, so the mould with contractile function is all loosed core on not.Yet the foundry goods of the shape of loosing core on the needs of casting for this shrinking die often need further carry out machining, with process originally by on the shape of loosing core and can accomplish.Like this, not only lose time but also increase cost, seriously restricting the production capacity of enterprise.And the parts after the casting carry out the machined meeting once more makes the casting flaw of foundry goods display, and like pore and shrinkage cavity, has the lower defective of yield rate.

Summary of the invention

In order to solve the above problems, the object of the present invention is to provide a kind of shrinkage die of loosing core on collapsible that has, it can produce the loose core product of shape of having of plurality of specifications, can greatly enhance productivity.

The present invention solves the technical scheme that its problem adopts:

A kind of shrinkage die of loosing core on having; Comprise the cover half and the dynamic model of matched moulds with it; Be inlaid with the fixed die insert that polylith can splice mutually on the said cover half, be inlaid with the moving die insert that polylith can splice mutually on the said dynamic model, said dynamic model upper end is provided with top shoe; The top shoe core that polylith can splice mutually is installed on the said top shoe, and said top shoe and top shoe core composition shrink looses core; All adopt screw attachment between said fixed die insert and cover half, moving die insert and the dynamic model, and be removable connection.

The invention has the beneficial effects as follows: shrinkage die of loosing core on having of the present invention, can insert site changes on fixed half and moving half in, when the pattern length of promptly inserting changes; Can be simultaneously on the top shoe core of loosing core carry out adaptive combination change; Thereby produce the loose core product of shape of having of all lengths specification, satisfy the needs that enterprise practical is produced, avoided follow-up machining operation; Reduce cost, can greatly improve production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a kind of contraction state structural representation of the present invention;

Fig. 3 is an another kind of contraction state structural representation of the present invention;

Side schematic view when Fig. 4 is a matched moulds of the present invention.

The specific embodiment

With reference to Fig. 1 and Fig. 4, a kind of shrinkage die of loosing core on having of the present invention comprises the cover half 100 and the dynamic model 200 of matched moulds with it, is inlaid with the fixed die insert 1,2 that polylith can splice mutually on the said cover half 100; 3,4,5, be inlaid with the moving die insert 6,7 that polylith can splice mutually on the said dynamic model 200; 8,9,10, it is characterized in that: said dynamic model 200 upper ends are provided with top shoe 16, and the top shoe core 11 that polylith can splice mutually is installed on the said top shoe 16; 12,13,14,15, said top shoe 16 and top shoe core 11; 12,13,14,15 compositions shrink and loose core.Behind cover half 100 and dynamic model 200 matched moulds, fixed die insert 1,2,3,4,5, moving die insert 6,7,8,9,10 and shrinking looses core through the die casting operation, produces the die casting of first kind of length with the shape of loosing core.

With reference to figure 2, a kind of contraction state of the present invention.At this moment, cover half part is by fixed die insert 1,3, and 5 form, and dynamic model 200 is by moving die insert 6,8, and 10 form, and loose core in the contraction then to be made up of top shoe 16 and

top shoe core

11,13,15.When cover half 100 during with dynamic model 200 matched moulds, the fixed die insert of new combination, moving die insert and on loose core through the die casting operation, produce the die casting of second kind of length with the shape of loosing core.

With reference to figure 3, another kind of contraction state of the present invention.At this moment, the cover half part is made up of fixed die insert 1,5, and dynamic model 200 is made up of moving die insert 6,10, looses core in the contraction then to be made up of top shoe 16 and top shoe core 11,15.When cover half 100 during with dynamic model 200 matched moulds, once more the fixed die insert of new combination, moving die insert and on loose core through the die casting operation, produce the die casting of the third length with the shape of loosing core.

Wherein, Shrinking die is to be known by those skilled in the art; All adopt dismountable connected mode between insert unit and the dynamic model cage plate of shrinking die, the cover half cage plate,, realize the contraction of mould type position through the unit of inserting of conversion different size; Make same set of mould can produce the cast product of different size, thereby reduce the cost of elevator step product greatly.In the described unit of inserting, the adjacent closely contact between the unit of inserting.And all adopt screw to link to each other between insert unit and dynamic model cage plate and the cover half cage plate.Need to change when inserting the unit, only need screw to be unclamped the promptly replaceable required unit of inserting.

Embodiment to sum up, shrinkage die of loosing core on having of the present invention, can insert site changes on fixed half and moving half in; When the pattern length of promptly inserting changes, can be simultaneously on the top shoe core of loosing core carry out adaptive combination change, thereby on a mold, produce the loose core product of shape of having of all lengths specification; Satisfy the needs that enterprise practical is produced; Avoid follow-up machining operation, reduced cost, can greatly improve production efficiency.

In addition, the extraction mode of loosing core in the present embodiment is well known to those skilled in the art, and can reach this purpose with general oil cylinder method for drawing out, gives unnecessary details no longer one by one at this.

Certainly; The invention is not limited to above-mentioned embodiment; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims

1. shrinkage die of loosing core on having comprises cover half (100) and the dynamic model of matched moulds (200) with it, is inlaid with the fixed die insert (1,2,3 that polylith can splice mutually on the said cover half (100); 4,5), be inlaid with the moving die insert (6,7,8 that polylith can splice mutually on the said dynamic model (200); 9,10), it is characterized in that: said dynamic model (200) upper end is provided with top shoe (16), and the top shoe core (11,12 that polylith can splice mutually is installed on the said top shoe (16); 13,14,15), said top shoe (16) and top shoe core (11; 12,13,14,15) composition is loosed core on shrinking; All adopt screw attachment between said fixed die insert (1,2,3,4,5) and cover half (100), moving die insert (6,7,8,9,10) and the dynamic model (200), and be removable connection.