CN208197454U

CN208197454U - A kind of easily demoulding banana pouring gate structure

Info

Publication number: CN208197454U
Application number: CN201820444509.9U
Authority: CN
Inventors: 金志康
Original assignee: Shanghai Global Precision Mould and Plastics Co Ltd
Current assignee: Shanghai Fengmei Precision Mould Technology Co ltd
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2018-12-07
Anticipated expiration: 2028-03-30

Abstract

The utility model provides a kind of easily demoulding banana pouring gate structure, it include: sprue mold insert, it is set in the insert backboard of sprue mold insert lower part, the insert of installation is arranged on the top of the sprue mold insert, spring structure is equipped between the insert and the insert backboard, the insert and the sprue mold insert cooperatively form banana runner, the insert and insert backboard two sides are extended through equipped with product thimble and runner ejector pin, banana sprue apparatus can be dismantled by the design, it can make equipment application in brittleness plastic material simultaneously, product is avoided to be broken, effectively improve production efficiency, reduce production cost and personnel cost.

Description

A kind of easily demoulding banana pouring gate structure

Technical field

The utility model relates to a kind of injection mold more particularly to a kind of easily demoulding banana pouring gate structures.

Background technique

In injection molding field, due to the limitation there are product-forming and product to gate location, it is necessary to use rubber For cast gate into glue, the demoulding of this cast gate belongs to the flexibility using plastic cement magnetic therapy, and that forces material deformation makes demoulding side by force Formula, but as being poured so mold encounters in process of production there are the flexible sex-intergrade of plastic material used in certain products When mouth ejection device, it is easy to happen cast gate phenomenon of rupture, so that production is can not be successfully progress, influences production efficiency.

Utility model content

The technical problem to be solved by the utility model is in view of the drawbacks of the prior art, providing a kind of easily demoulding Banana pouring gate structure, the structure use completely new rubber cast gate stripping means, the part of banana cast gate are designed two above and below being divided into Part-structure extracts cast gate from type chamber out by the die sinking movement of mold, and during cast gate extraction, the change of cast gate Shape is small as far as possible, it is ensured that in smaller deformation process phenomenon of rupture occurs for cast gate, goes on smoothly production.

In order to achieve the above objectives, the technical solution of the utility model is as follows: a kind of easily demoulding banana pouring gate structure, packet It includes: sprue mold insert, the insert backboard for being set in sprue mold insert lower part, the dynamic model edge for being set in the sprue mold insert top Part is equipped with spring structure, the insert and the sprue mold insert between the insert and the insert backboard Banana runner is cooperatively formed, the insert and insert backboard two sides are extended through equipped with product thimble and runner Thimble.

Particularly, the insert and the insert backboard it is closely sealed when, the top of the product thimble with it is described The top flush of insert.

Particularly, the insert and the insert backboard it is closely sealed when, the top of the runner ejector pin with it is described The top flush of insert.

Particularly, the insert and insert backboard corresponding position are equipped with for installing spring structure Blind hole.

Particularly, the sprue mold insert bottom is equipped with retention bead.

Particularly, insert backboard bottom is equipped with the groove to match with sprue mold insert bottom retention bead.

Particularly, the top of the product thimble and the runner ejector pin carries out nitrogen treatment.

The banana pouring gate structure before die sinking, carry on the back by the insert and the sprue mold insert and the insert Plate is mutually closely sealed, and the insert and the sprue mold insert combine to form banana runner, are poured, and passes through corresponding device Insert is lifted, the banana runner disappears and forms a big cavity, rises product thimble and runner ejector pin respectively, leads to The impetus for crossing runner ejector pin and insert forms a lever, is detached from cast gate and product, to obtain product.

The utility model has the following technical effect that the utility model compared with prior art using above technical scheme Easily demoulding banana pouring gate structure break conventional monolithic structure, assemble pouring gate structure, increase runner top Needle can be such that simultaneously product and runner is detached from, and cast gate can be made to be broken by controlling machine driving, reduce the personnel to operate, Split type structure is also convenient for mechanical production and processing, and the utility model can be applied in more brittleness plastic materials, expands The scope of application of banana cast gate, and the utility model can carry out programming operations, greatly improve production efficiency.

Detailed description of the invention

Fig. 1 is the die sinking pre-structure schematic diagram of the utility model.

Fig. 2 is structural schematic diagram after the die sinking of the utility model.

Fig. 3 is the product ejecting structure schematic diagram of the utility model.

In figure: 1- sprue mold insert, 2- insert backboard, 3- insert, 4- spring structure, 5- banana runner, 6- are produced Product thimble, 7- runner ejector pin

Specific embodiment

The technical solution of the utility model is described in further detail with reference to the accompanying drawing.

It is the structural schematic diagram before the utility model die sinking such as Fig. 1, a kind of easily demoulding banana pours in the utility model Mouth structure, the structure include: sprue mold insert 1, are set in the insert backboard 2 of 1 lower part of sprue mold insert, are set in the cast gate The insert 3 on 1 top of mold insert is equipped with spring structure 4 between the insert 3 and the insert backboard 2, described dynamic Mould mold insert 3 and the sprue mold insert 1 cooperatively form banana runner 5, the insert 3 and 2 two sides of insert backboard It extends through and is equipped with product thimble 6 and runner ejector pin 7.

The utility model during installation, sprue mold insert 1 fixed first, by insert backboard 2 from sprue mold insert square set Under, there is duct in the centre of the insert backboard 2, and the duct is matched with the cross sectional shape of sprue mold insert, while described There is retention bead in the bottom end of sprue mold insert, can be mutually matched fixation by retention bead and insert backboard 2, fix Finish, again put down insert 3 from the top of sprue mold insert 1, there is a duct in the centre of the insert 3, the duct with The interface shape of sprue mold insert matches, before putting down, between the insert 3 and the insert backboard 2 Spring structure 4 is put into blind hole, assembly finishes, the hole being mutually communicated between the insert 3 and insert backboard 2 It is middle to be inserted into product thimble 6 and runner ejector pin 7 respectively, keep the top of the product thimble 6 and runner ejector pin 7 and insert 3 Top planes it is equal, the product thimble 6 and runner ejector pin 7 also act the effect of fixed limit, for keeping dynamic model to inlay Part 3 is corresponded to each other with 2 position of insert backboard, and the space between the insert 3 and the sprue mold insert 1 forms banana Runner 5.

When being cast, keeps insert 3 and insert backboard 2 to be bonded to each other, poured by banana runner 5 Casting obtains product, after product is cooling, is lifted insert 3 to which disengaging is dynamic by extraneous auxiliary device and spring arrangement 4 Mould mold insert backboard 2 and sprue mold insert 1, since there are product thimble 6 and runner ejector pin 7, insert 3 only will do it one vertically The translational motion in direction can be lifted runner by controlling runner ejector pin 7 when insert 3 is picked up, and runner and banana A lever construction is formed between runner 5 and insert 3, when runner ejector pin 7 jacks up runner, the module at cast gate is because of stress Fracture, then product thimble 6 jacks up, and product is smoothly detached from from insert, and not will cause fracture.

Banana cast gate module is integrally divided into three pieces by the utility model, and increases a runner ejector pin, is effectively avoided The fracture and fragmentation that product is generated by material cause, are greatly reduced and do over again, and effectively improve production efficiency, reduce manually at This.

Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model It is not restricted to particular embodiments described above.To those skilled in the art, any that this practical is equal Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model The equal transformation and modification of work, should all cover in the scope of the utility model.

Claims

1. a kind of easily demoulding banana pouring gate structure characterized by comprising sprue mold insert (1) is set in sprue mold insert (1) the insert backboard (2) of lower part, be set in the insert (3) on the sprue mold insert (1) top, the insert (3) spring structure (4) are equipped between the insert backboard (2), the insert (3) and the sprue mold insert (1) It cooperatively forms banana runner (5), the insert (3) and insert backboard (2) two sides are extended through equipped with product Thimble (6) and runner ejector pin (7).

2. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that the insert (3) with When the insert backboard (2) is closely sealed, the top of the product thimble (6) and the top flush of the insert (3).

3. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that the insert (3) with When the insert backboard (2) is closely sealed, the top of the runner ejector pin (7) and the top flush of the insert (3).

4. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that the insert (3) and Insert backboard (2) corresponding position is equipped with the blind hole for installing spring structure (4).

5. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that sprue mold insert (1) bottom Portion is equipped with retention bead.

6. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that the insert backboard (2) bottom is equipped with the groove to match with sprue mold insert (1) bottom retention bead.

7. easily demoulding banana pouring gate structure according to claim 1, which is characterized in that the product thimble (6) and Nitrogen treatment is passed through on the top of the runner ejector pin (7).