CN201586728U

CN201586728U - Shrinkage die with up-drawing core

Info

Publication number: CN201586728U
Application number: CN2010200034895U
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: 2010-09-22
Anticipated expiration: 2020-01-10

Abstract

The utility model discloses a shrinkage die with an up-drawing core, which comprises a fixed mould and a movable mould capable of being closed with the fixed mould, wherein a plurality of fixed mould inserts capable of being spliced mutually are embedded on the fixed mould, a plurality of movable mould inserts capable of being spliced mutually are embedded on the movable mould, an upper slide block is arranged at the upper end of the movable mould, a plurality of upper slide block mould cores capable of being spliced mutually are mounted on the upper slide block, and the upper slide block and the upper slide block mould cores together form the shrinkage up-drawing core. When positions of the inserted blocks on the fixed mould and the movable mould are changed, i.e. the combined lengths of the inserted blocks are changed, the shrinkage die provided by the utility model can perform adaptative combination and variation to the upper slide block mould cores of the up-drawing core, thereby producing products with various length specifications and the shape of the up-drawing core, satisfying the requirement for actual production of enterprises, avoiding subsequent machining procedures, reducing the cost, and greatly improving the production efficiency.

Description

The shrinkage die of loosing core on having

Technical field

The utility model 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 needs further to carry out machining, with process originally by on the shape of loosing core and can finish.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 as pore and shrinkage cavity, has the lower defective of yield rate.

The utility model content

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

The technical scheme that the invention for solving the technical problem adopted is:

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 described cover half, be inlaid with the moving die insert that polylith can splice mutually on the described dynamic model, described dynamic model upper end is provided with top shoe, the top shoe core that polylith can splice mutually is installed on the described top shoe, and described top shoe and top shoe core composition shrink looses core.

The beneficial effects of the utility model are: shrinkage die of loosing core on having of the present utility model, in can insert site changes on fixed half and moving half, 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

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the utility model structural representation;

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

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

Side schematic view when Fig. 4 is the utility model matched moulds.

The specific embodiment

With reference to Fig. 1 and Fig. 4, a kind of shrinkage die of loosing core on having of the present utility model comprises the cover half 100 and the dynamic model 200 of matched moulds with it, be inlaid with the fixed die insert 1,2,3 that polylith can splice mutually on the described cover half 100,4,5, be inlaid with the moving die insert 6 that polylith can splice mutually on the described

dynamic model

200,7,8,9,10, it is characterized in that: described dynamic model 200 upper ends are provided with top shoe 16, and the top shoe core 11,12 that polylith can splice mutually is installed on the described top shoe 16,13,14,15, described 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 shrink looses core by 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 utility model.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 and dynamic model 200 matched moulds, the fixed die insert of new combination, moving die insert and on loose core by 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 utility model.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 and dynamic model 200 matched moulds, the fixed die insert of new once more combination, moving die insert and on loose core by 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, the unit of inserting by the conversion different size, realize the contraction of mould type position, 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 utility model, in can insert site changes on fixed half and moving half, 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 the utility model spirit, 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 that polylith can splice mutually on the described cover half (100), 2,3,4,5), be inlaid with the moving die insert (6,7 that polylith can splice mutually on the described dynamic model (200), 8,9,10), it is characterized in that: described dynamic model (200) upper end is provided with top shoe (16), the top shoe core (11 that polylith can splice mutually is installed on the described top shoe (16), 12,13,14,15), described top shoe (16) and top shoe core (11,12,13,14,15) composition is loosed core on shrinking.