CN203592612U

CN203592612U - Uniform-cooling die core structure

Info

Publication number: CN203592612U
Application number: CN201320775373.7U
Authority: CN
Inventors: 江友飞; 谭朝阳
Original assignee: JIANGMEN JUNSHENG INDUSTRIAL Co Ltd
Current assignee: JIANGMEN JUNSHENG INDUSTRIAL Co Ltd
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2014-05-14
Anticipated expiration: 2023-11-28

Abstract

The utility model discloses a uniform-cooling die core structure which comprises a die core body, wherein at least one cooling hole is formed in the rear end of the die core body in a pouring direction, the depth of the cooling hole is 75 to 98 percent of the length of the die core body in the pouring direction, the opening end of the cooling hole is sleeved with a rubber pipe tightly clung to the inner wall of the cooling hole, the length of the rubber pipe is 45 to 70 percent of the length of the die core body in the pouring direction, a baffle plate is embedded in the rubber pipe, the baffle plate extends to the lower end of the cooling hole and the cooling hole is divided into two cooling passages communicated with each other at the bottom of the cooling hole through the baffle plate. According to the utility model, by using the characteristic of poor heat conductivity of the rubber pipe, the cooling speed of the rear end of the die core body in the pouring direction is lowered, the entire die core body is uniformly cooled, product deformation is reduced, the phenomenon of product surface scrapping is avoided, and the product quality is improved.

Description

A kind of cooling uniform mould core structure

Technical field

The utility model relates to mould structure, particularly a kind of cooling uniform mould core structure.

Background technology

In mold injection process, the harmony of die temperature can be to the outward appearance of formed product, material physical properties and injection cycle produce considerable influence, but in Design of Dies, often can run into some and have the product of darker groove structure, its die is larger along the size in cast direction, when injection moulding, die is low along the rear end temperature in cast direction, cooling velocity is fast, its front end temperature is high, cooling slower, cause thus die front and back end temperature unbalanced, cause formed product to produce distortion, product surface garland phenomenon, have a strong impact on the quality of production, reduce the qualification rate of product.

Utility model content

In order to overcome the deficiencies in the prior art, the utility model provides the mould core structure that a kind of cooling uniformity is good, improve the quality of production.

The utility model solves the technical scheme that its technical problem adopts:

A kind of cooling uniform mould core structure, comprise die body, described die body at least offers a Cooling Holes along the rear end in cast direction, the degree of depth of described Cooling Holes is that die body is along 75% ~ 98% of the length in cast direction, the openend of Cooling Holes is equipped with the sebific duct of being close to mutually with Cooling Holes inwall, the length of described sebific duct is that die body is along 45% ~ 70% of the length in cast direction, in sebific duct, be embedded with dividing plate, this dividing plate extends to Cooling Holes lower end and Cooling Holes is separated to form to two cooling ducts that are connected in Cooling Holes bottom.

As the improvement of technique scheme, the length of described sebific duct is that die body is along 50% ~ 60% of the length in cast direction.

As the further improvement of technique scheme, the degree of depth of described Cooling Holes is that die body is along 90% ~ 95% of the length in cast direction.

The beneficial effects of the utility model are: the utility model is by offering Cooling Holes at die body along the rear end in cast direction, and in Cooling Holes, be nested with sebific duct, poor characteristic reduces the cooling velocity of die body along the rear end in cast direction to utilize sebific duct conductivity of heat, die body along cast the front end in direction owing to not being equipped with sebific duct, Cooling Holes directly contacts with cooling water, its cooling velocity is very fast, thereby make whole die body cooling evenly, temperature equalization, reduce the distortion of die body, improve product surface garland phenomenon, improve product quality.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is schematic perspective view of the present utility model;

Fig. 2 is cutaway view of the present utility model.

The specific embodiment

(direction shown in the arrow of Fig. 1 is cast direction) sees figures.1.and.2, the cooling uniform mould core structure of one of the present utility model, comprise die body 1, described die body 1 at least offers a Cooling Holes 11 along the rear end in cast direction, and at this, the number of Cooling Holes 11 should be determined according to the volume size of die body 1, the number of the larger Cooling Holes 11 of the volume of die body 1 is more in principle, in order to make die body 1 cooling evenly, preferably, arrange in an orderly manner at each Cooling Holes 11 intervals.The degree of depth of described Cooling Holes 11 is that die body 1 is along 75% ~ 98% of the length in cast direction, be 90% ~ 95% compared with the figure of merit, the openend of described Cooling Holes 11 is equipped with the sebific duct 2 of being close to mutually with Cooling Holes 11 inwalls, the length of described sebific duct 2 be die body 1 along 45% ~ 70% of the length in cast direction, be 50% ~ 60% compared with the figure of merit.In sebific duct 2, be embedded with dividing plate 3, this dividing plate 3 extends to Cooling Holes 11 lower ends and Cooling Holes 11 is separated to form to two cooling ducts that are connected in Cooling Holes 11 bottoms, at this, enter in Cooling Holes 11 for the ease of dividing plate 3 setting-ins, the preferential employing of described dividing plate 3 has flexible flake aluminum, makes dividing plate 3 produce distortion in the time embedding Cooling Holes 11 and tightly contacts with the inwall of Cooling Holes 11.When use, after being communicated with, the cooling duct order of all Cooling Holes 11 on die body 1 passes into cooling water therein, in cooling procedure, in Cooling Holes 11, be not equipped with the part of sebific duct 2 because Cooling Holes 11 inwalls directly contact with cooling water, cooling velocity is very fast, and the part that is equipped with sebific duct 2 in Cooling Holes 11 is dispelled the heat to cooling water because Cooling Holes 11 conducts heat by sebific duct 2, the conductivity of heat of sebific duct 2 is poor, thereby this part cooling velocity is slower, thereby make the cooling velocity of film benevolence body 1 temperature end (along the front end in cast direction) higher than the cooling velocity of film benevolence body 1 low-temperature end (along the rear end in cast direction), make whole die body 1 cooling evenly, reduce the distortion of die body 1, improve the quality of product.Herein, sebific duct 2 length and die body 1 is most important along the accounting between the length in cast direction, and this accounting is excessive or too smallly all will cause the cooling uniformity of die body 1 poor.

The utility model is by offering Cooling Holes 11 at die body 1 along the rear end in cast direction, and in Cooling Holes 11, be nested with sebific duct 2, utilize the poor characteristic of sebific duct 2 conductivities of heat to reduce the cooling velocity of die body 1 along the rear end in cast direction, front end in die body 1 edge cast direction is owing to not being equipped with sebific duct 2, Cooling Holes 11 directly contacts with cooling water, its cooling velocity is very fast, thereby make cooling even, the temperature equalization of whole die body 1, reduce the distortion of die body 1, improve product surface garland phenomenon, improved product quality.

Certainly, the utility model, except above-mentioned embodiment, can also have other structural distortion, and these equivalent technical solutions also should be within its protection domain.

Claims

1. a cooling uniform mould core structure, comprise die body (1), it is characterized in that: described die body (1) at least offers a Cooling Holes (11) along the rear end in cast direction, the degree of depth of described Cooling Holes (11) is that die body (1) is along 75% ~ 98% of the length in cast direction, the openend of Cooling Holes (11) is equipped with the sebific duct (2) of being close to mutually with Cooling Holes (11) inwall, the length of described sebific duct (2) is that die body (1) is along 45% ~ 70% of the length in cast direction, in sebific duct (2), be embedded with dividing plate (3), this dividing plate (3) extends to Cooling Holes (11) lower end and Cooling Holes (11) is separated to form to two cooling ducts that are connected in Cooling Holes (11) bottom.

2. the cooling uniform mould core structure of one according to claim 1, is characterized in that: the length of described sebific duct (2) is that die body (1) is along 50% ~ 60% of the length in cast direction.

3. the cooling uniform mould core structure of one according to claim 1 and 2, is characterized in that: the degree of depth of described Cooling Holes (11) is that die body (1) is along 90% ~ 95% of the length in cast direction.