CN206011609U - A kind of eyeglass injection mold - Google Patents

Abstract

This utility model is related to technical field of mold, and in particular to a kind of eyeglass injection mold, including lower mould and upper mould, it is characterised in that：The lower mould offers a plurality of flow manifold; one end of flow manifold converges at the center of lower mould; the center of the following mould of a plurality of flow manifold is centrosymmetric setting; lower mould is further opened with cast gate and circular heavy platform; the other end of flow manifold is connected by circular heavy platform with cast gate; die cavity is provided between upper die and lower die, lower mould offers handle hopper, die cavity is connected by handle hopper with cast gate.This utility model is provided with handle hopper, during injection, raw material first passes through handle hopper and enters back into molding in die cavity, effectively the stress produced in forming process can be moved away from eyeglass, effectively reduce the fragility of the edge of eyeglass, improve the bulk strength of eyeglass, the probability of eyeglass edge break in use is reduced, the safe wearing coefficient of eyeglass is enhanced.

Description

A kind of eyeglass injection mold

Technical field

This utility model is related to technical field of mold, and in particular to a kind of eyeglass injection mold.

Background technology

Eyeglass is that the quality of a kind of high-accuracy injection-molded item, the elaboration of product size control and product is particularly weighed Will.Cast gate is directly arranged on the injection mold of existing eyeglass the edge of the die cavity of eyeglass molding so that molding During the stress that produces rest on the edge of eyeglass, increased the fragility at eyeglass edge, cause eyeglass Edge is easily ftractureed, and the bulk strength of eyeglass declines, and glasses lens edge during wearing collides appearance Easily rupturable, potential safety hazard is brought to eyeglass wearer.Therefore, in injection molding process, stress how is avoided to rest on eyeglass Edge be the bulk strength for being effectively increased eyeglass, reduce wear one of effective way of risk.

Content of the invention

In order to overcome shortcoming and defect present in prior art, the purpose of this utility model to be to provide a kind of eyeglass note Mould, the eyeglass injection mold are provided with handle hopper, and during injection, raw material first passes through handle hopper and enters back into molding in die cavity, Effectively the stress produced in forming process can be moved away from eyeglass, effectively reduce eyeglass edge crisp Property, improves the bulk strength of eyeglass, reduces the probability of eyeglass edge break in use, enhances wearing for eyeglass Safety coefficient.

The purpose of this utility model is achieved through the following technical solutions：A kind of eyeglass injection mold, including lower mould and upper mould, The lower mould offers a plurality of flow manifold, and one end of flow manifold converges at the center of lower mould, the following mould of a plurality of flow manifold Center be centrosymmetric setting, lower mould is further opened with cast gate and circular heavy platform, and the other end and cast gate of flow manifold is by circle The heavy platform connection of shape, is provided with die cavity between upper die and lower die, and lower mould offers handle hopper, and die cavity and cast gate pass through handle hopper Connection.

Wherein, it should which the eyeglass that the eyeglass injection mold production is obtained includes eyeglass body and is connected to eyeglass body edges Eyeglass handle, in actual forming process, the eyeglass body is formed in the die cavity, and eyeglass handle is condensed in handle hopper Formed.

Wherein, the upper mould offers upper plenum, and lower mould offers lower cavity, is equiped with upper cores in upper plenum.Lower sky Intracavity is equiped with lower die, when upper die and lower die are closed, forms the die cavity between upper cores and lower die.

Wherein, the flow manifold flow to curved.

Wherein, the cast gate flare, one end of the circular heavy platform of cast gate connection are narrower, connect one end of handle hopper compared with Wide.

Wherein, the junction of the cast gate and handle hopper is located at the middle part of handle hopper.

Wherein, the upper mould offers sprue, and when upper die and lower die are closed, sprue is connected with each flow manifold.

Wherein, the die cavity is communicated with slag well.

Wherein, the lower mould offers air vent, and the die cavity is connected with air vent.

The beneficial effects of the utility model are：This utility model is provided with handle hopper, and during injection, raw material first passes through handss Handle hopper enters back into molding in die cavity, effectively can move away the stress produced in forming process from eyeglass, effectively subtract Lack the fragility of the edge of eyeglass, improve the bulk strength of eyeglass, reduce eyeglass edge break in use Probability, enhance the safe wearing coefficient of eyeglass；And this utility model is provided with circular sinking between flow manifold and cast gate Platform, the melting sizing material temperature drop for entering in flow manifold at first are very fast, if this partial melting sizing material is directly entered in die cavity The molding for participating in eyeglass can cause the cold and hot contraction uneven phenomenon of eyeglass molding, and the bulk strength of the eyeglass for causing production to obtain is uneven Even, eyeglass easily ftractures in use, the setting of circular heavy platform cause to enter at first in flow manifold temperature drop faster that Partial melting sizing material can be fallen in circular heavy platform when through circular heavy platform automatically, so as to prevent this partial melting sizing material from participating in mirror The molding of piece.

Description of the drawings

Fig. 1 is the top view of lower mould of the present utility model.

Fig. 2 is the axonometric chart of lower mould of the present utility model.

Fig. 3 is the upward view of upper mould of the present utility model.

Fig. 4 is axonometric chart of the present utility model.

Fig. 5 is the axonometric chart of upper cores of the present utility model.

Fig. 6 is the sectional view of upper cores of the present utility model.

Fig. 7 is the axonometric chart of lower die of the present utility model.

Fig. 8 is the sectional view of lower die of the present utility model.

Reference is：1 flow manifold, 2 cast gates, 3 circular heavy platforms, 4 handle hoppers, 5 eyeglass bodies, 6 eyeglass handles, 7 upper plenums, 8 upper cores, 9 times cavitys, 10 times dies, 11 sprues, 12 slag wells, 13 air vents.

Specific embodiment

For the ease of the understanding of those skilled in the art, this utility model is made with reference to embodiment and accompanying drawing 1- Fig. 8 Further instruction, the content that embodiment is referred to is not to restriction of the present utility model.

See Fig. 1-Fig. 8, a kind of eyeglass injection mold, including lower mould and upper mould, the lower mould offers a plurality of flow manifold 1, one end of flow manifold 1 converges at the center of lower mould, and a plurality of flow manifold center of mould below 1 is centrosymmetric setting, under Mould is further opened with cast gate 2 and the heavy platform 3 of circle, and the other end of flow manifold 1 is connected by circular heavy platform 3 with cast gate 2, and upper mould is with Die cavity is provided between mould, lower mould offers handle hopper 4, die cavity is connected by handle hopper 4 with cast gate 2.

Specifically, the quantity of the flow manifold 1 is five, and corresponding die cavity is also five.

This utility model is provided with handle hopper 4, and during injection, raw material first passes through handle hopper 4 and enters back into molding in die cavity, Effectively the stress produced in forming process can be moved away from eyeglass, effectively reduce eyeglass edge crisp Property, improves the bulk strength of eyeglass, reduces the probability of eyeglass edge break in use, enhances wearing for eyeglass Safety coefficient；And this utility model is provided with circular heavy platform 3 between flow manifold 1 and cast gate 2, enters flow manifold 1 at first Interior melting sizing material temperature drop is very fast, if the molding that this partial melting sizing material is directly entered participation eyeglass in die cavity can cause The cold and hot contraction uneven phenomenon of eyeglass molding, the bulk strength of eyeglass for causing production to obtain are uneven, eyeglass using when easily open Split, the setting of circular heavy platform 3 causes to enter at first in flow manifold 1 temperature drop part melting faster sizing material through circle Can fall into automatically in circular heavy platform 3 during the heavy platform 3 of shape, so as to prevent this partial melting sizing material from participating in the molding of eyeglass.

Wherein, it should which the eyeglass that the eyeglass injection mold production is obtained includes eyeglass body 5 and is connected to 5 side of eyeglass body The eyeglass handle 6 of edge, in actual forming process, the eyeglass body 5 is formed in die cavity, and eyeglass handle 6 is in handle hopper 4 Interior condensation is formed.

Wherein, the upper mould offers upper plenum 7, and lower mould offers lower cavity 9, is equiped with upper cores 8 in upper plenum 7. Lower die 10 is equiped with lower cavity 9, when upper die and lower die are closed, forms the die cavity between upper cores 8 and lower die 10.

Wherein, the flow manifold 1 flow to curved.

The flow direction of flow manifold 1 is changed to arc by this utility model, changes the direction of flow manifold 1, is changed molten during injection Melt the stress of sizing material, effectively the flow direction of applied mechanics design melting sizing material, improves injection defect and quality, lifted and produced The performance of product.The flow direction of flow manifold 1 is changed to arc, and the distance of each die cavity product flow manifold 1 is all consistent, average melting glue The dynamic uniformity of stream so that the quality of the eyeglass injecting products of high-accuracy requirement is improved, improves injection and produces The quality of product.

Wherein, 2 flare of the cast gate, one end that cast gate 2 connects circular heavy platform 3 are narrower, connect the one of handle hopper 4 End is wider.2 flare of cast gate is arranged is easy to melting sizing material to shunt from all directions from after the entrance handle of cast gate 2 hopper 4 and fill Full handle hopper 4.

Wherein, the junction of the cast gate 2 and handle hopper 4 is located at the middle part of handle hopper 4.Cast gate 2 and handle hopper 4 Junction be arranged at handle hopper 4 middle part can by most advanced enter handle hopper 4 in the relatively low part of temperature melt Melt the blind end that sizing material is diverted to handle hopper 4, the molding melting sizing material as eyeglass handle 6 is used, and be create a further reduction Most advanced enter handle hopper 4 in melting sizing material as the accounting of 5 molding materials of eyeglass body, improve the matter of lens product Amount.

Wherein, the upper mould offers sprue 11, and when upper die and lower die are closed, sprue 11 is connected with each flow manifold 1 Logical.

Wherein, the die cavity is communicated with slag well 12.Specifically, the slag well 12 is opened in lower mould, slag well 12 Well head is connected with the edge of the die cavity.The setting of slag well 12 can be used in placing the temperature for entering in die cavity at first relatively Low melting sizing material, it is to avoid this partial melting sizing material participates in the molding of eyeglass body 5, improves the quality of lens product.

Wherein, the lower mould offers air vent 13, and the die cavity is connected with air vent 13.Specifically, the air vent 13 quantity is two, is divided into the both sides of the slag well 12.

Above-described embodiment is this utility model preferably implementation, and in addition, this utility model can be with other sides Formula realizes that any obvious replacement is in protection model of the present utility model without departing from the concept of the premise utility Within enclosing.

Claims (8)

1. a kind of eyeglass injection mold, including lower mould and upper mould, it is characterised in that：The lower mould offers a plurality of flow manifold, One end of flow manifold converges at the center of lower mould, and the center of the following mould of a plurality of flow manifold is centrosymmetric setting, and lower mould is also Cast gate and circular heavy platform is offered, the other end of flow manifold is connected by circular heavy platform with cast gate, set between upper die and lower die Die cavity is equipped with, lower mould offers handle hopper, die cavity is connected by handle hopper with cast gate.

2. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The upper mould offers upper plenum, under Mould offers lower cavity, is equiped with upper cores in upper plenum；Lower die is equiped with lower cavity, when upper die and lower die are closed, on The die cavity is formed between die and lower die.

3. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The flow direction of the flow manifold is in arc Shape.

4. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The cast gate flare, cast gate connect The one end for connecing circular heavy platform is narrower, and the one end for connecting handle hopper is wider.

5. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The cast gate and the connection of handle hopper Place is located at the middle part of handle hopper.

6. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The upper mould offers sprue, on When mould and lower mould are closed, sprue is connected with each flow manifold.

7. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The die cavity is communicated with slag well.

8. a kind of eyeglass injection mold according to claim 1, it is characterised in that：The lower mould offers air vent, institute State die cavity to be connected with air vent.