CN206840617U - The exhaust structure of double-colored negative pressure injection mold - Google Patents
The exhaust structure of double-colored negative pressure injection mold Download PDFInfo
- Publication number
- CN206840617U CN206840617U CN201720544957.1U CN201720544957U CN206840617U CN 206840617 U CN206840617 U CN 206840617U CN 201720544957 U CN201720544957 U CN 201720544957U CN 206840617 U CN206840617 U CN 206840617U
- Authority
- CN
- China
- Prior art keywords
- cover half
- side form
- mold insert
- double
- form frame
- 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.)
- Expired - Fee Related
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Abstract
A kind of exhaust structure of double-colored negative pressure injection mold is the utility model is related to, includes the A dynamic models being molded, B cover half to be molded, vacuum extractor；The B cover half frame of side form containing cover half, backing plate, mould courage, mold insert, the backing plate is located at mould courage, it is embedded in above mold insert and together in cover half side form frame, the forming cavity of product is by A dynamic models, the mould courage of B cover half, mold insert is formed, the mold insert is in the forming cavity side of product around the annular gap that one fixed width is provided between its surface and mould courage, mold insert is provided with perpendicular grooves along its sidewall surfaces, the forming cavity and annular gap of product, perpendicular grooves communicate, the backing plate, cover half side form frame is provided with vertical channel at the position of corresponding perpendicular grooves, cover half side form frame is additionally provided with the horizontal channel communicated with vertical channel, the outlet of cover half side form frame horizontal channel is connected with vacuum extractor.The utility model advantage：It is simple in construction, the requirement of injection is met after the gas of in-mold molding chamber is eliminated by vacuum extractor.
Description
Technical field
A kind of shaping of plastics is the utility model is related to, more specifically to a kind of exhaust of double-colored negative pressure injection mold
Structure.
Background technology
The development trend of connector is developed to high-fidelity, big speed direction at present, particularly communication class connector, one after another
Employ composite self-shielded design, i.e. plug shell uses two kinds of materials, and one of which is conductive plastics, it is another then
For LCP plastics.Need to produce in double coloured plastic injection machine for this.The operation principle of double-color mold is an injection machine while installs A, B
Two sets of injection moulds are molded in two steps.A moulds cover half is molded LCP plastics, and B is molded into moulding conductive plastics；A, B moulds dynamic model is identical.
Quality accident frequently occur in the A dynamic models after having poured into a mould LCP plastics with wait hand over note conductive plastics B cover half match when.Study carefully
Its reason is that the A dynamic models side being molded loses degassing function, and cover half side to be molded mostly is matrix die cavity, no thimble,
Mold insert is small, few, and exhaust is bad into certainty.Therefore, the exhaust of B cover half side be determine double-color mold successful most critical factor it
One, these gases being trapped in die cavity are compressed can produce counter-pressure and heat cause plastics can not quickly mold filling, be molded
Not full, phenomena such as burning, while gas can penetrate into inside workpiece and cause stomata, tissue looseness, gas can also produce bubble point
For cloth in workpiece surface, not only profile is poor and reduces product quality.
The content of the invention
The purpose of this utility model provided for prior art weak point it is a kind of it is simple in construction, product can be improved
The exhaust structure of the double-colored negative pressure injection mold of quality.
The purpose of this utility model is realized by following measures：A kind of exhaust structure of double-colored negative pressure injection mold,
Include the A dynamic models being molded, B cover half to be molded, vacuum extractor, it is characterised in that the B cover half side form containing cover half
Frame, backing plate, mould courage, mold insert, the backing plate is located at mould courage, is embedded in above mold insert and together in cover half side form frame, product into
Die cavity is made up of mould courage, the mold insert of A dynamic models, B cover half, the mold insert the forming cavity side of product around its surface and mould courage it
Between be provided with the annular gap of one fixed width, mold insert is provided with perpendicular grooves along its sidewall surfaces, the forming cavity and annular gap of product,
Perpendicular grooves communicate, and the backing plate, cover half side form frame are provided with vertical channel at the position of corresponding perpendicular grooves, and cover half side form frame is also
Provided with the horizontal channel communicated with vertical channel, the outlet of cover half side form frame horizontal channel is connected with vacuum extractor.
The annular gap is 0.005 ~ 0.008mm, width about 2 ~ 3mm.
The depth of the perpendicular grooves is 0.1mm ~ 0.2mm, 2 ~ 3mm of width.
The vertical channel is provided with sealing ring in backing plate and cover half side form frame joining place.
Compared with prior art, the utility model proposes a kind of double-colored negative pressure injection mold exhaust structure, have such as
Lower advantage：Simple in construction, double-color mold is changed the gas of in-mold molding chamber after cover half by vacuum extractor second
The requirement of injection is met after eliminating, improves product quality, ensure that the precision of product and the continuous-stable of production.
Brief description of the drawings
Fig. 1 be the utility model proposes one embodiment schematic diagram.
Embodiment
Embodiment is elaborated below in conjunction with the accompanying drawings：A reality of the present utility model is given shown in Fig. 1
Apply example.In figure, a kind of exhaust structure of double-colored negative pressure injection mold, include the A dynamic models 1 being molded, B cover half 2 to be molded,
Vacuum extractor 3；B cover half side form containing cover half frame 21, backing plate 22, mould courage 23, mold insert 24, the backing plate 22 are located at mould courage
23rd, the top of mold insert 24 and be together embedded in cover half side form frame 21, the forming cavity of product by A dynamic models 1, B cover half 2 mould courage 23,
Mold insert 24 is formed, and the mold insert 24 is in the forming cavity side of product around the ring that one fixed width is provided between its surface and mould courage 23
Shape gap 25, mold insert 24 are provided with perpendicular grooves 26, forming cavity and annular gap 25, the perpendicular grooves 26 of product along its sidewall surfaces
Communicate, the backing plate 22, cover half side form frame 21 are provided with vertical channel 27 at the position of corresponding perpendicular grooves 26, and cover half side form frame is also
Provided with the horizontal channel 28 communicated with vertical channel, the outlet of the horizontal channel 28 of cover half side form frame 21 is connected with vacuum extractor 3.
In this structure, the forming cavity of product constitutes double with annular gap, perpendicular grooves, vertical channel, horizontal channel, vacuum extractor
The exhaust passage of color mould.
The utility model further takes following measure：The annular gap is 0.005 ~ 0.008mm, width about 2 ~ 3mm.
The depth of the perpendicular grooves is 0.1mm ~ 0.2mm, 2 ~ 3mm of width.Can be by the sky of formed product intracavitary by such passage
Gas is extracted out.
The vertical channel is provided with sealing ring 29 in backing plate and cover half side form frame joining place.It this architecture enhance dies cavity
Sealing.
Embodiment of the present utility model is described above in conjunction with accompanying drawing, the structure that embodiment provides is not formed to this reality
With new limitation, it is equal that those skilled in the art in the art make various deformations or amendments within the scope of the appended claims
In protection domain.
Claims (4)
1. a kind of exhaust structure of double-colored negative pressure injection mold, include the A dynamic models being molded, B cover half to be molded, vacuumize
Device, it is characterised in that B cover half side form containing cover half frame, backing plate, mould courage, mold insert, the backing plate are located at mould courage, on mold insert
It is embedded in just and together in cover half side form frame, the forming cavity of product is made up of mould courage, the mold insert of A dynamic models, B cover half, the mold insert
The forming cavity side of product around between its surface and mould courage provided with the annular gap of one fixed width, mold insert along its sidewall surfaces
Provided with perpendicular grooves, the forming cavity of product communicates with annular gap, perpendicular grooves, and the backing plate, cover half side form frame hang down corresponding
The position of straight groove is provided with vertical channel, and cover half side form frame is additionally provided with the horizontal channel communicated with vertical channel, cover half side form frame
The outlet of horizontal channel is connected with vacuum extractor.
2. the exhaust structure of double-colored negative pressure injection mold according to claim 1, it is characterised in that the annular gap is
0.005~0.008mm, width are 2~3mm.
3. the exhaust structure of double-colored negative pressure injection mold according to claim 1 or 2, it is characterised in that described vertical recessed
The depth of groove is 0.1mm~0.2mm, 2~3mm of width.
4. the exhaust structure of double-colored negative pressure injection mold according to claim 1, it is characterised in that the vertical channel exists
Backing plate is provided with sealing ring with cover half side form frame joining place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544957.1U CN206840617U (en) | 2017-05-17 | 2017-05-17 | The exhaust structure of double-colored negative pressure injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544957.1U CN206840617U (en) | 2017-05-17 | 2017-05-17 | The exhaust structure of double-colored negative pressure injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206840617U true CN206840617U (en) | 2018-01-05 |
Family
ID=60796243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544957.1U Expired - Fee Related CN206840617U (en) | 2017-05-17 | 2017-05-17 | The exhaust structure of double-colored negative pressure injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206840617U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109080081A (en) * | 2018-08-06 | 2018-12-25 | 常州星宇车灯股份有限公司 | A kind of structure improving polychrome mould product trapped gas |
| CN109795073A (en) * | 2019-03-11 | 2019-05-24 | 杨文良 | The spectacle-frame and leg of spectacles and production method of a kind of metal in conjunction with plastic cement |
| CN110126217A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of exhaust apparatus of mold |
| CN114260351A (en) * | 2021-12-23 | 2022-04-01 | 哈尔滨工业大学 | Large-area array microstructure cross-scale die forming device and method |
-
2017
- 2017-05-17 CN CN201720544957.1U patent/CN206840617U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109080081A (en) * | 2018-08-06 | 2018-12-25 | 常州星宇车灯股份有限公司 | A kind of structure improving polychrome mould product trapped gas |
| CN109795073A (en) * | 2019-03-11 | 2019-05-24 | 杨文良 | The spectacle-frame and leg of spectacles and production method of a kind of metal in conjunction with plastic cement |
| CN110126217A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of exhaust apparatus of mold |
| CN114260351A (en) * | 2021-12-23 | 2022-04-01 | 哈尔滨工业大学 | Large-area array microstructure cross-scale die forming device and method |
| CN114260351B (en) * | 2021-12-23 | 2024-01-26 | 哈尔滨工业大学 | Large-area array microstructure trans-scale compression molding device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200517 |