CN205951162U - Prevent thread injection's mould of pulling - Google Patents
Prevent thread injection's mould of pulling Download PDFInfo
- Publication number
- CN205951162U CN205951162U CN201620853867.6U CN201620853867U CN205951162U CN 205951162 U CN205951162 U CN 205951162U CN 201620853867 U CN201620853867 U CN 201620853867U CN 205951162 U CN205951162 U CN 205951162U
- Authority
- CN
- China
- Prior art keywords
- die cavity
- mould
- product die
- screw thread
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a prevent thread injection's mould of pulling, including mold core, spacing screw, jacking spring, screw thread demoulding mechanism, be equipped with the product die cavity on the mold core, the upper portion of product die cavity is the screw thread section, still be equipped with the auxiliary product die cavity on the mold core, the upper portion of auxiliary product die cavity also is the screw thread section, the length of the screw thread section of auxiliary product die cavity is greater than the screw thread section of product die cavity. The utility model discloses an auxiliary product die cavity has been added in the mould, the shaping quality of product can be guaranteed effectively.
Description
Technical field
This utility model is related to a kind of injection molding technology, particularly contains the injection mold of screw thread.
Background technology
When being molded some threaded section plastic parts, thread segment is generally engaged injection by mold insert, when injection finishes,
Need for product to carry out the demoulding.Traditional stripping means commonly springboard structure, die cavity is located at cover half side, and thread core sets
In dynamic model side.After die sinking, use decelerator（Or hydraulic motor）Drive sprocket drive gear, gear driven thread core
Rotate, rotary motion produces axial thrust（Typically in order to increase thrust, need multiple bullets are installed under push pedal
Spring）Back down push pedal, plastic opposite thread core moves axially, under the rotation stop of burr bar acts on, realize the rotation of thread core side
Turn, plastic side moves axially, thus deviating from plastic screw thread.
But this screw thread stripping means, the moment disengaging in screw thread, due to the elastic force effect of spring, and thread form position is not
Easily accurately control, tail tooth is often pulled it is impossible to be fully achieved the required precision of this product.
Utility model content
The technical problems to be solved in the utility model is：A kind of screw thread tail tooth that can effectively prevent product is provided to be pulled
Mould.
The solution that this utility model solves its technical problem is：A kind of mould pulled preventing screw thread moulding,
Include core rod, limited screw, jacking spring, threaded demoulding mechanism, described core rod is provided with product die cavity, described product die cavity
Top be thread segment, described core rod is additionally provided with auxiliary product die cavity, the top of described auxiliary product die cavity is also thread segment,
The length of the thread segment of described auxiliary product die cavity is more than the thread segment of product die cavity.
As the improvement further of technique scheme, described threaded demoulding mechanism includes power source, rotating shaft, described turn
Axle is arranged on mould by bearing, and described power source is connected with rotating shaft by drive mechanism.
As the improvement further of technique scheme, described bearing includes plane bearing and deep groove ball bearing, described
Plane bearing is arranged on the top of deep groove ball bearing.
As the improvement further of technique scheme, described power source is oil motor；Described drive mechanism is gear.
The beneficial effects of the utility model are：This utility model passes through to arrange auxiliary product die cavity in mould, allows auxiliary to produce
Product die cavity produces pre-stretching part simultaneously, when in the demoulding, product and pre-stretching part synchronous axial system, due to be pre-stretched part
Reach be more than product length, therefore when product completes the demoulding, pre-stretching part also do not divide completely with push pedal
From now the thrust of spring all concentrates on pre-stretching part, even if occur in that the situation of pulling finally, is also only to be pre-stretched
Part is pulled, and being pre-stretched part is discard, and can return smelting furnace is recycled, using the method for this shifting risk, can
Effectively to ensure the Forming Quality of product.
Brief description
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to required in embodiment description
Accompanying drawing to be used is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than entirely
Portion's embodiment, those skilled in the art's on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
His design and accompanying drawing.
Fig. 1 is mould axonometric chart of the present utility model；
Fig. 2 is the sectional view of mould of the present utility model.
Specific embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is carried out
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area
The other embodiment that art personnel's on the premise of not paying creative work is obtained, belongs to the model of this utility model protection
Enclose.In addition, all connection/annexations being previously mentioned in literary composition, not singly refer to component and directly connect, and refer to can be according to concrete reality
Apply situation, by adding or reducing connection auxiliary, to form more excellent draw bail.Each technology in this utility model creation
Feature, can be with combination of interactions on the premise of not conflicting conflict.
With reference to Fig. 1～Fig. 2, a kind of mould pulled preventing screw thread moulding, include core rod 1, limited screw 2, top
Rise spring 8, threaded demoulding mechanism, described core rod 1 is provided with product die cavity 4, and the top of described product die cavity 4 is thread segment, institute
State and auxiliary product die cavity 3 is additionally provided with core rod 1, the top of described auxiliary product die cavity 3 is also thread segment, described auxiliary product type
The length of the thread segment in chamber 3 is more than the thread segment of product die cavity 4.
It is further used as preferred embodiment, described threaded demoulding mechanism includes power source 9, rotating shaft, described rotating shaft
It is arranged on mould by bearing, described power source 9 is connected with rotating shaft by drive mechanism 7.
It is further used as preferred embodiment, described bearing includes plane bearing 5 and deep groove ball bearing 6, described flat
Spherical bearing 5 is arranged on the top of deep groove ball bearing 6.In order to ensure that action in the demoulding is smooth and the thrust of balancing spring,
Rotating shaft of the present utility model is to go to carry by two different bearings.
It is further used as preferred embodiment, described power source 9 is oil motor；Described drive mechanism 7 is gear.
The method of pulling that prevents of mould of the present utility model is such：It is additionally provided with pre-stretching part in described mould, described
Pre-stretching part also includes external screw thread, and the external thread length of described pre-stretching part is more than the external thread length of product.When being molded
Cheng Hou, mould brings into operation product-stripping mechanism action, and oil motor starts action, and oil motor drives pinion rotation, gear driven product and
Pre-stretching part rotates simultaneously, meanwhile push pedal synchronous upwardly product under the action of the spring, forms the action of Leave out thread,
Reach due to being pre-stretched part is more than the reach of product, so when product completes the demoulding, pre-stretching part is also
Stay in mould, now the thrust of spring is born completely it is ensured that the thread segment of product is in whole knockout course by pre-stretching part
In will not be pulled.Because pre-stretching part is discard, for product, its production cost is very low, and, original
Multi-processing pre-stretching part die cavity in mould, its cost is also high, by this method, improves the ratio of briquetting of product and stablizes
Property, decrease the scrappage of product, reduce the operation cost of enterprise.
Above better embodiment of the present utility model is illustrated, but this utility model is created and is not limited to
Described embodiment, those of ordinary skill in the art also can make without prejudice on the premise of this utility model spirit a variety of etc.
With modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of mould pulled preventing screw thread moulding, includes core rod（1）, limited screw（2）, jacking spring（8）, spiral shell
Stricture of vagina mould emptier, described core rod（1）It is provided with product die cavity（4）, described product die cavity（4）Top be thread segment, its feature
It is：Described core rod（1）On be additionally provided with auxiliary product die cavity（3）, described auxiliary product die cavity（3）Top also be thread segment,
Described auxiliary product die cavity（3）Thread segment length be more than product die cavity（4）Thread segment.
2. the mould pulled preventing screw thread moulding according to claim 1 it is characterised in that：Described screw thread ingot stripper
Structure includes power source（9）, rotating shaft, described rotating shaft is arranged on mould by bearing, described power source（9）By drive mechanism
（7）It is connected with rotating shaft.
3. the mould pulled preventing screw thread moulding according to claim 2 it is characterised in that：Described bearing includes
Plane bearing（5）With deep groove ball bearing（6）, described plane bearing（5）It is arranged on deep groove ball bearing（6）Top.
4. the mould pulled preventing screw thread moulding according to claim 3 it is characterised in that：Described power source（9）
For oil motor；Described drive mechanism（7）For gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853867.6U CN205951162U (en) | 2016-08-08 | 2016-08-08 | Prevent thread injection's mould of pulling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853867.6U CN205951162U (en) | 2016-08-08 | 2016-08-08 | Prevent thread injection's mould of pulling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205951162U true CN205951162U (en) | 2017-02-15 |
Family
ID=57973650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853867.6U Withdrawn - After Issue CN205951162U (en) | 2016-08-08 | 2016-08-08 | Prevent thread injection's mould of pulling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205951162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142462A (en) * | 2016-08-08 | 2016-11-23 | 佛山市迪华科技有限公司 | A kind of method of pulling preventing screw thread moulding and mould thereof |
-
2016
- 2016-08-08 CN CN201620853867.6U patent/CN205951162U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142462A (en) * | 2016-08-08 | 2016-11-23 | 佛山市迪华科技有限公司 | A kind of method of pulling preventing screw thread moulding and mould thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20180921 |