CN202021772U

CN202021772U - Demolding mechanism

Info

Publication number: CN202021772U
Application number: CN2010206449882U
Authority: CN
Inventors: 刘胜民
Original assignee: Suzhou Hanyang Precision Electronics Co Ltd
Current assignee: Suzhou Mitac Precision Technology Co Ltd; Suzhou Hanyang Precision Electronics Co Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-11-02
Anticipated expiration: 2020-12-07

Abstract

A demolding mechanism is applied to a mold used for forming spherical products with inclined holes and comprises a female mold plate, a male mold plate, a female mold core and a male mold core. The utility model is characterized in that the demolding mechanism further comprises a female mold core backing plate, an insert, a shutter and a pull rod, wherein the female mold core backing plate is arranged between the female mold plate the female mold core and fixed on the female mold plate; an empty avoiding area is arranged between the female mold core backing plate and the female mold plate; an avoiding hole is also arranged on the female mold core backing plate; one end of the insert penetrates through the avoiding hole on the female mold core backing plate and closely matched with a cavity on the female mold core; the other end of the insert is a limiting head and arranged in the empty avoiding area between the female mold core backing plate and the female mold plate; one end of the pull rod is fixed on the female mold plate; and the other end of the pull rod is a step surface which can be arranged in a limited space formed by the female mold core and the male mold core that are closed in an up and down moving way. The demolding mechanism has simple structure, lower manufacturing cost and high stability and is suitable for producing various spherical products with the inclined holes.

Description

Mould emptier

[technical field]

The utility model relates to a kind of mold mechanism, particularly a kind of mold releasability mechanism that is applied to the sphere product of inclined hole.

[background technology]

Injecting products if product is a sphere, and has the inclined hole perpendicular to this sphere on this sphere product in shaping manufacture process, such as the plastic shell of ball-type camera, then the demoulding of this product is relatively more difficult.Prior art mainly is to come the inclined hole of this sphere product of moulding by the mould emptier that uses oil hydraulic cylinder or slide block; yet this mechanism structure more complicated, manufacturing cost height and poor stability, and be subjected to the restriction of die space sometimes and can't in mould, adopt.

[utility model content]

In view of the above problems, the purpose of this utility model be to provide a kind of be applied to the sphere product of inclined hole simple in structure, manufacturing cost is lower and stable high mold releasability mechanism.

In order to achieve the above object, the utility model mould emptier is applied in the mould of sphere product of moulding one band inclined hole, and this mould comprises a caster, a male model plate, a mother module core and a male model benevolence, it is characterized in that this mould emptier also comprises:

One mother module core backing plate is arranged between this caster and this mother module core and is fixed on this caster, and an empty avoiding district is arranged between this mother module core backing plate and this caster, also is provided with one on this mother module core backing plate and keeps away the hole;

One goes into son, and the hole of keeping away that this end of going into son passes on this mother module core backing plate is tight with at die cavity on this mother module core, is used for the inclined hole of this product of moulding, and its other end is a spacing head, is arranged in the empty avoiding district between this mother module core backing plate and this caster;

One shutter, it is arranged between this mother module core and this male model benevolence; And

One pull bar, one end are fixed on this caster, and the other end is a step surface, and this step surface can be arranged at this mother module core and this male model benevolence when closed in the formed restricted quarter up and downly.

Preferably, in the utility model mould emptier, this mother module core backing plate is provided with a convex sphere, and its diameter forms an empty avoiding district greater than the diameter of described sphere product between this convex sphere and this caster, and this empty avoiding district is a convex spherical space.

Preferably, in the utility model mould emptier, this spacing head of going into son is one spherical, and its diameter is greater than the width of keeping away the hole on this mother module core backing plate, and this spacing head of going into son slides keeping away on the opening of hole of this mother module core backing plate upper end when die sinking.

Preferably, the utility model mould emptier also comprises a positioning rod, and the one end is fixed on this caster, and its main body is passed this mother module core backing plate, and its other end inserts this mother module core, when being used to adorn mould this mother module core backing plate and this mother module core is positioned.

Compared to prior art; the utility model mould emptier is by increasing a mother module core backing plate; temporarily can't separate in the phase I of die sinking mother module core and of the effect of male model benevolence owing to shutter; this mother module core backing plate separates the son of going into that drives simultaneously on this mother module core backing plate with this mother module core earlier and withdraws from product; second stage in die sinking makes this mother module core break away from this male model benevolence by pull bar, ejects product thereby continue die sinking.Adopt this mould emptier structure simple, make be easier to and cost lower, be suitable for producing the sphere product of various band inclined holes.

[description of drawings]

Fig. 1 is the view of the utility model mould emptier when matched moulds.

Fig. 2 is that the utility model mould emptier is in the view of die sinking during the phase I.

Fig. 3 is the local enlarged diagram of A part among Fig. 2.

Fig. 4 is the view of the utility model mould emptier when the die sinking second stage.

[specific embodiment]

The below describes in further detail better embodiment of the present utility model in conjunction with the accompanying drawings.

Please refer to Fig. 1 to Fig. 4, the utility model mould emptier is applied to a mould, is used to produce the sphere product 10 of a band inclined hole 11.This mould comprises a caster 20, a male model plate 30, a mother module core 21, a male model benevolence 31, and this mould emptier comprises that a mother module core backing plate 40, goes into son 41, one shutter 50, a pull bar 60, a positioning rod 70.

This mother module core backing plate 40 is arranged between this caster 20 and this mother module core 21, and this mother module core backing plate 40 is provided with a convex sphere, is provided with a convex spherical space between this convex sphere and this caster 20, also has one on this mother module core backing plate 40 and keeps away hole 42.This is gone into son main body of 41 and passes this and keep away hole 42, and the one end is tight with at this mother module core 21 and is used for inclined hole 11 on this product 10 of moulding, and this spacing head of going into son 41 can move up and down along this opening of keeping away hole 42 in this convex spherical space.One end of this shutter 50 is fixed on this male model benevolence 31, and its other end is arranged on this mother module core 21.One end of this pull bar 60 is fixedly arranged on this caster 20, its main body is passed this mother module core backing plate 40 and this mother module core 21, its lower end is provided with in the restricted quarter that forms when a step surface can be arranged at this mother module core 21 with these male model benevolence 31 closures up and downly, thereby limit move distance that this mother module core 21 breaks away from these mother module core backing plates 40 when being used for die sinking and prevent that this from going into son 41 and breaking away from this mother module core 21 fully, and this mother module core 21 and this male model benevolence 31 are separated.One end of this backstay 70 is fixedly arranged on this caster 20, and its main body is passed this mother module core backing plate 40, and its other end inserts in the locating slot on this mother module core 21, the location of this mother module core backing plate and this mother module core when being used to adorn mould.

During matched moulds, this is gone into son 41 and is positioned at this and keeps away hole 42 apart from the nearer end in the convex sphere summit of this mother module core backing plate 40, this goes into the effect of replacing that son 41 is subjected to this caster 20, the inclined hole 11 of this product 10 of moulding, the step surface of this pull bar 60 and the relative distance maximum between this mother module core 21 at this moment.

In the phase I of die sinking, because the effect of this shutter 50, this mother module core 21 moves downward with this male model benevolence 31.At this moment, this is gone into son 41 and is subjected to the downward pulling force of this mother module core 21, but because this spacing head of going into son 41 is subjected to the restriction that this keeps away hole 42 openings, can only keep away hole 42 Open Side Down along this and do the camber line translational motion so this goes into son 41, this goes into the inclined hole 11 that son 41 moves and withdraws from this product 10 along its axis direction simultaneously.Meet this mother module core 21 up to the step surface of this pull bar 60, these mother module core 21 stop motions, this was gone into son 41 and had been moved to this and keep away hole 42 apart from the convex sphere summit of this mother module core backing plate 40 end far away this moment, and this goes into son and 41 has withdrawed from the inclined hole 11 of this product 10, but does not break away from this mother module core 21 fully.

Second stage in die sinking, this male model benevolence 31 continues to move downward, but because this pull bar 60 has limited this mother module core 21, so this moment, this mother module core 21 was separated from each other with this male model benevolence 31, this shutter 50 is opened gradually, after this mother module core 21 separates a segment distance with this male model benevolence 31,, mould ejects this product 10 thereby entering the follow-up product process of ejecting.

The utility model mould emptier is by increasing a mother module core backing plate 40; this mother module core backing plate 40 separates with this mother module core 21 earlier when die sinking; this goes into the inclined hole 11 that son 41 withdraws from this product 10 these mother module core backing plate 40 drives simultaneously; limit the move distance of this mother module core 21 then by this pull bar 60; thereby prevent that this from going into son 41 and breaking away from this mother module core 21 fully and this mother module core 21 and this male model benevolence are separated, thereby the continuation die sinking ejects product 10.Adopt that this mould emptier is simple in structure, manufacturing cost is lower and stable height, be suitable for producing the sphere product of various band inclined holes.

Be pointed out that; the utility model is not limited to above-mentioned embodiment; any simple modification, equivalent variations and modification that any those skilled in the art do the foregoing description based on technical solutions of the utility model all fall in the protection domain of the present utility model.

Claims

1. mould emptier is applied in the mould of sphere product of moulding one band inclined hole, and this mould comprises a caster, a male model plate, a mother module core and a male model benevolence, it is characterized in that this mould emptier also comprises:

2. mould emptier according to claim 1 is characterized in that: this mother module core backing plate is provided with a convex sphere, forms this empty avoiding district between this convex sphere and this caster.

3. mould emptier according to claim 2 is characterized in that: the convex sphere on this mother module core backing plate, its diameter is greater than the diameter of this sphere product.

4. mould emptier according to claim 2 is characterized in that: this empty avoiding district is a convex spherical space.

5. mould emptier according to claim 1 is characterized in that: this spacing head of going into son is one spherical.

6. mould emptier according to claim 5 is characterized in that: this diameter of spacing of going into son is greater than the width of keeping away the hole on this mother module core backing plate.

7. mould emptier according to claim 1; it is characterized in that: also comprise a positioning rod, the one end is fixedly arranged on this caster, and its main body is passed this mother module core backing plate; its other end inserts this mother module core, when being used to adorn mould this mother module core backing plate and this mother module core is positioned.