CN201291543Y

CN201291543Y - Combined mould core

Info

Publication number: CN201291543Y
Application number: CNU2008202138764U
Authority: CN
Inventors: 王学敏
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2009-08-19
Anticipated expiration: 2018-11-24

Abstract

The utility model provides an assembly mould core which is suitable for mould component field; the assembly mould core is composed of a plurality of split mould cores which are detachably connected. When the shape of the specific part of the assembly mould core needs to be changed, the split mould core with corresponding specific part is detached, the needed split mould core is mounted without replacing the whole mould core, thereby improving the production efficiency and reducing the production cost of mould manufacturing. The assembly mould core can be used as a mould component for being widely applied to the field of mould manufacturing.

Description

A kind of combination mold core

Technical field

The utility model belongs to the mold component field, relates in particular to a kind of combination mold core.

Background technology

Nowadays, plastic product is used very extensive in the middle of industrial circle and people's lives, but plastic product all utilizes mould to produce, and its employed mould generally is made up of core rod and die cavity.Generally speaking, a plastic product needs one pair of mould to finish.Plastic product often only need take place in the part a bit to change in the production process of reality, will change a secondary new core rod or a secondary new die cavity, like this, has both wasted mold materials, increases die manufacturing cost, influences product again and puts goods on the market the cycle.

The utility model content

The purpose of this utility model is to provide a kind of combination mold core, is intended to solve when the part of the die cavity of mould changes, and needs whole core rod all to change, and promptly wastes mold materials, has prolonged the problem of process-cycle again.

The utility model is achieved in that a kind of combination mold core, it is characterized in that: described combination mold core is combined by a plurality of minutes core rods, removably connects between the described minute core rod.

The utility model combination mold core forms owing to employing several minutes core rod removably connects, when the shape of the privileged site of mould cavity changes, this combination mold core only needs and will disassemble with corresponding minute core rod of given shape, only changes required branch core rod and gets final product.

The utlity model has following technique effect:

1, when the mould cavity local shape need change, can get final product by changing with corresponding minute core rod of this privileged site, whole core rod need not be changed;

2, since core rod by several minutes core rod forms, the respectively while production and processing of these minutes core rod can have been shortened the manufacturing cycle of core rod greatly;

3, divide core rod can utilize the scrap mould local material to use, reduced the cost of raw material;

4, between the branch core rod certain clearance is arranged, help the mold cavity exhaust, can prevent mould high temperature heat expansion;

5, since core rod by several minutes core rod detachably form, made things convenient for the modification of core rod.

6, every component core rod has cooling-water duct separately, therefore, when changing the branch core rod, can not influence the operation of other minute core rod cooling water.

Description of drawings

Fig. 1 is the schematic perspective view of the combination mold core that provides of the utility model embodiment.

Fig. 2 is the schematic perspective view of the die cavity that provides of the utility model embodiment.

Fig. 3 is the schematic perspective view after the die cavity local shape that provides of the utility model embodiment changes.

Fig. 4 be the utility model embodiment provide change the schematic perspective view after combination mold core changes with the die cavity part.

Fig. 5 is the cooling water channel schematic diagram of the die cavity that provides of the utility model embodiment.

Fig. 6 is the cooling water channel schematic diagram of the combination mold core that provides of the utility model embodiment.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also Fig. 1, a kind of combination mold core 10 of the utility model is parts of injection mold, matches with die cavity that injection mold is provided with to have constituted shape inside and outside the plastic product.Combination mold core 10 comprises upper mold core 11, lower mold core 12, left core rod 13,

right core rod

14 and 15 5 branch core rods of middle core rod in the present embodiment, and certainly, according to the true form of core rod, core rod also can be formed with the branch core rod of other quantity.Described five branch core rods can adopt screw to removably connect each other, and certainly, each core rod also can take other modes to removably connect, and as offering the correspondence unit that is fastened and connected at each minute core rod each minute core rod are fastened and connected mutually.Each minute, core rod was screwed on the core rod fixed head 5 that injection mold is provided with.Each minute core rod material all the material with common core rod is identical.

See also Fig. 1, also a minute core rod can be divided into several layers according to the actual needs of injection mold, in the present embodiment, layer after five branch core rods just have been divided into branch core rod anterior layer again respectively and have divided core rod, preceding, removably connect with screw between the layer of back.See also body 1 and Fig. 2, the anterior layer of core rod 10 is inserted in the die cavity 2 that mould is provided with, can form in the plastic product, outer shape is when plastics enter injection mold sprue, runner, go into Jiao Kou and be full of mold cavity by the injection machine injection molding mouth, again through supercooling, open mould, again through ejecting, the technological process that pickup etc. are conventional will obtain the plastic product of certain geometrical shape and precision.

See also Fig. 2 and Fig. 3, when the local size of the plastic product of producing changes, the die cavity 3 that die cavity 2 need be replaced with, and core rod can be corresponding with die cavity with regard to only needing to dismantle down back core rod 12, thus do not need whole core rod is changed.In like manner, when the shape at other positions of die cavity need be changed, only need to change to match with die cavity to corresponding branch core rod, do not need whole core rod replacing with the shape conversion position.

See also Fig. 1, when the mold cavity degree of depth changes, when the height of core rod also needs corresponding change, only need a minute core rod anterior layer is disassembled, and replace with corresponding minute core rod anterior layer and get final product, do not need to change again back layer core rod.

See also Fig. 5, be provided with circulation waterway 4 in the die cavity 2, the circulation waterway passage 8 in the die cavity installing rack 6 that described circulation waterway 4 and injection mold are provided with is connected, and like this, circulating water flow just can circulate in die cavity 2.

See also Fig. 6, before the back core rod 12, the back layer is provided with circulation waterway 7 and upper and lower layer circulation waterway 7 is connected; Use rubber sealing between the described circulation waterway 7, can not spill in order to guarantee the water in the circulation waterway; Described back core rod 12 usefulness screws are connected on the core rod fixed head 5.Before the core rod 12 of the same back of structure, it is similar that the back layer is provided with circulation waterway, also is respectively equipped with the circulation waterway that is used to cool off core rod separately in preceding core rod 11, left core rod 13, right core rod 14 and the middle core rod 15.Described circulation waterway is disconnected each other, and the independent circulation waterway that is connected with in each minute core rod can close according to shape of product, closes, connects the part cooling system, reaches convenient control, regulates the product local deformation with this.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of combination mold core is characterized in that, described combination mold core by several minutes core rod combine, removably connect between described each minute core rod.

2, a kind of combination mold core as claimed in claim 1 is characterized in that: adopt screw to removably connect between described each minute core rod.

3, a kind of combination mold core as claimed in claim 1 or 2 is characterized in that: be provided with independent cooling water channel in described each minute core rod.