CN102019653A

CN102019653A - Mold mechanism for removing burrs of product

Info

Publication number: CN102019653A
Application number: CN2009103071351A
Authority: CN
Inventors: 陈永祥
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2011-04-20
Anticipated expiration: 2029-09-17
Also published as: CN102019653B

Abstract

The invention provides a mold mechanism for removing burrs of a product. A square groove is formed on a male mold core at an inserting surface between the male mold core and a female mold core; an insert which can move inside the square groove is arranged in the square groove; the moving distance of the movable insert in the square groove is not less than the swelling amount of the heated female mold core; a blind hole is formed on one side surface of the movable insert; a spring is arranged inside the blind hole; and one end of the spring is pressed to the bottom of the blind hole, and the other end of the spring is pressed to the side surface of the square groove. The mold mechanism has a simple structure, a local inserting body of the male mold core and the female mold core is always positioned in a close-fitting state at different temperatures due to the movable insert, and the phenomenon that the burrs are generated on a patching part of a high-temperature molding mold is avoided.

Description

A kind of mold mechanism that solves the product burr

Technical field

The present invention relates to a kind of mold mechanism, specifically a kind of mold mechanism that solves the product burr.

Background technology

In mold manufacturing industry,, the mould of many employing high-temperature molding technology is arranged for the outward appearance of better replicated product.

Traditional high-temperature molding mould, the master mold high temperature water route of arranging, the male model normal temperature water route of arranging, the temperature of master mold is high more a lot of than the temperature of male model when producing.According to the physical characteristic that steel expand with heat and contract with cold, the dilation of master mold also can be bigger than male model, and this will cause feature die to produce the gap in some local slotting broken positions of close-fitting originally, and very serious burr can appear in product.The product burr that this situation causes all can't solve for a long time at mold manufacturing industry circle, can only repair by increasing operation, and this has not only wasted human resources has increased cost, and main is the rising that has caused the bad of product appearance and product fraction defective.

See also Fig. 1, be known high-temperature molding mould structure schematic diagram.The present high-temperature molding mould that uses, the high-temperature molding water route of arranging on the master mold 2, master mold 2 is directly inserted with male model 3 and is broken together, when producing, along with the temperature of master mold 2 constantly raises, swell increment is also increasing, and the slotting tear 4 of close-fitting engenders the gap originally, and burr will inevitably appear in the product 1 that molds.

Summary of the invention

Because above-mentioned problem, burr can appear in the local slotting broken position of the mould of utilization high-temperature molding technology.This? purpose be to overcome the deficiencies in the prior art and defective, a kind of mold mechanism that solves the product burr is provided.

The invention provides a kind of mold mechanism that solves the product burr.At the broken face place of inserting of male model benevolence and mother module core, offer a square groove on this male model benevolence, its square groove is built-in to be placed with one and can be in this square groove movable to go into son, and this activity is gone into the operating range of son in square groove and is not less than swell increment after this mother module core is heated; And the side that son is gone in this activity offers a blind hole, is provided with spring in this blind hole, and an end of its spring props up the bottom of this blind hole, and the other end props up the side of square groove.

More excellent, go into the boss that to be fixed with two sides on the sub-end face be the inclined-plane in this activity; And offering two sides on this mother module core is inclined plane groove, and boss on the son is gone into corresponding to activity in the position of this groove, and its size, shape are consistent with size, the shape of this boss.

More excellent, the gradient of boss one side on the sub-end face is gone in described activity and the gradient of one side of the groove on the mother module core is not more than male model benevolence and the slotting angle of breaking face of mother module core.

More excellent, the blind hole that sub-side is gone in described activity is positioned at the position of going into the son bottom near this.

Compared with prior art, the present invention is simple in structure, by a kind of can be movable go into son, make the part of male model Renhe mother module core insert broken body and under different temperature, be in the close-fitting state always, the phenomenon of burr appears in the breaking place that has solved the high-temperature molding mould.

Description of drawings

Fig. 1 is known high-temperature molding mould structure schematic diagram.

Fig. 2 is a kind of matched moulds view that solves the mold mechanism of product burr of the present invention.

Fig. 3 is a kind of die opening state schematic diagram that solves the mold mechanism of product burr of the present invention.

During the inserting the face of breaking and be the circular arc breaking of the mother module core of the mold mechanism that Fig. 4 solves the product burr for the present invention is a kind of and male model benevolence, the structural representation of this mechanism.

The specific embodiment

For describing technology contents of the present invention, structural feature in detail, illustrated in detail below in conjunction with embodiment and conjunction with figs..

See also Fig. 2, solve the matched moulds view of the mold mechanism of product burr for the present invention is a kind of.At broken face 108 places of inserting of mother module core 101 and male model benevolence 102, offer a square groove 112 on this male model benevolence 102, its square groove 112 is built-in to be placed with an activity and to go into son 104, the length of the length of son 104 less than this square groove 112 is gone in this activity, making this activity go into son 104 can be movable in this square groove 112, and its activity 107 is not less than the swell increment after mother module core 101 is heated.Go into son 104 side in this activity and offer a blind hole 105 near the position of bottom, blind hole 105 is located at activity and is gone into the positions of son 104 near bottoms, has reduced movable stressed center of gravity of going into son 104, can make activity go into the more smooth and easy of son 104 motions.Be provided with a spring 106 in this blind hole 105, an end of this spring 106 props up the bottom of this blind hole 105, and the other end props up the sidewall of square groove 112.Son 104 the end face boss 109 that to be fixed with two sides be the inclined-plane is gone in this activity, and the groove 110 that to offer two sides on this mother module core 101 be the inclined-plane, the position of sub 104 end face convex platforms 109 is gone in the position of this groove 110 corresponding to activity, the size of its groove 110, shape are consistent with size, the shape of this boss 109, and the gradient of the gradient of these boss 109 sides 113 and groove 110 sides 114 (seeing also Fig. 3) is not more than the angle of inserting broken face 108 of mother module core 101 and male model benevolence 102.

Groove 110 during matched moulds on the mother module core 101 cooperatively interacts with the boss 109 that activity is gone on sub 104 end faces.Because the gradient of these groove 110 sides 114 (seeing also Fig. 3) and the gradient of boss 109 sides 113 are not more than the angle of inserting broken face 108 of mother module core 101 and male model benevolence 102, so groove 110 and boss 109 are inserted brokenly action prior to the broken face 108 of inserting of mother module core 101 and male model benevolence 102, play guiding, the activity of tightening and gone into the function of son 104, and sub 104 bottom blind holes, 105 interior springs 106 are gone in close activity carried out precompressed, make it that strain take place.

When producing, mother module core 101 temperature raise and expand.Because it is big that the expansion of mother module core 101 becomes, groove 110 and boss 109 cooperate and the fit clearance of equivalent all can appear in mother module core 101 and the broken face 108 of inserting of male model benevolence 102, the spring 106 that activity is gone in the sub 104 bottom blind holes 105 begins to recover strain, son 104 motions are gone in its elastic force promotion activity that recovers the strain generation, make the broken face 108 of inserting of mother module core 101 and male model benevolence 102 be in close-fitting state, the phenomenon of burr appears in the breaking place that has solved product 103 always.

Please continue to consult Fig. 3, solve the die opening state schematic diagram of the mold mechanism of product burr for the present invention is a kind of.During die sinking, mother module core 101 move upward up to groove 110 fully the disengaging activity go into boss 109 on sub 104 end faces, boss 109 loses the binding force of groove 110 to it, the spring 106 that activity is gone in sub 104 blind holes 105 recovers strain fully, and the mold mechanism of these solution product burr recovers its original state.

Please continue to consult Fig. 4, when solving the inserting broken face and be the circular arc breaking of the mother module core of mold mechanism of product burr and male model benevolence for the present invention is a kind of, the structural representation of this mechanism.When this mother module core 101 is the circular arc breaking with the broken face 111 of inserting of this male model benevolence 102, can cancel groove 110 and movable boss 109 (seeing also Fig. 3) of going on sub 104 end faces on the mother module core 101, can play guiding, the activity of tightening for the circular arc breaking and go into sub 104 function because insert broken face 111, so can cancel.Other member of this mechanism is identical with the mold mechanism of above-described solution product burr with motion mode, just no longer gives unnecessary details at this.

The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Every according to equivalence variation and modification that the present invention did, all covered by the scope of claims of the present invention.

Claims

1. a mold mechanism that solves the product burr is characterized in that, comprising:

At the broken face place of inserting of male model benevolence and mother module core, offer a square groove on this male model benevolence, its square groove is built-in to be placed with one and can be in this square groove movable to go into son, and this activity is gone into the operating range of son in square groove and is not less than swell increment after this mother module core is heated;

And the side that son is gone in this activity offers a blind hole, is provided with spring in this blind hole, and an end of its spring props up the bottom of this blind hole, and the other end props up the side of square groove.

2. a kind of mold mechanism that solves the product burr according to claim 1 is characterized in that: go into the boss that to be fixed with two sides on the sub-end face be the inclined-plane in this activity; And offering two sides on this mother module core is inclined plane groove, and boss on the son is gone into corresponding to activity in the position of this groove, and its size, shape are consistent with size, the shape of this boss.

3. a kind of mold mechanism that solves the product burr according to claim 1 is characterized in that: the gradient of boss one side on the sub-end face is gone in described activity and the gradient of one side of the groove on the mother module core is not more than male model benevolence and the slotting angle of breaking face of mother module core.

4. a kind of mold mechanism that solves the product burr according to claim 1 is characterized in that: the blind hole that sub-side is gone in described activity is positioned at the position of going into the son bottom near this.