CN102029691A - Pinpoint gate structure of injection mold - Google Patents
Pinpoint gate structure of injection mold Download PDFInfo
- Publication number
- CN102029691A CN102029691A CN2010105275939A CN201010527593A CN102029691A CN 102029691 A CN102029691 A CN 102029691A CN 2010105275939 A CN2010105275939 A CN 2010105275939A CN 201010527593 A CN201010527593 A CN 201010527593A CN 102029691 A CN102029691 A CN 102029691A
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- pinpoint gate
- mold
- machining
- taper
- gate structure
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Abstract
The invention discloses a pinpoint gate structure of an injection mold, which is convenient to break from the root of a pinpoint gate during injection molding. The pinpoint gate structure comprises a pinpoint gate sleeve which is arranged in the mold, wherein the pinpoint gate positioned in the pinpoint gate sleeve is communicated with a mold cavity of the mold; and the pinpoint gate is a whole-taper taper hole. The pinpoint gate is the whole-taper taper hole with consistent taper from the head to the tail, and during the injection molding, the pinpoint gate is convenient to break from the root, so that the product precision is greatly improved; besides, the taper hole can be machined in a successive punching and liner cutting mode. As is known to all, liner cutting machining can greatly improve the smooth finish and precision of the pinpoint gate, so that the machining time is shortened and the machining efficiency is improved; for example, relative to a mold for machining frequency-variable air conditioner indoor and outdoor machine plastic magnet rotors, the time for performing liner cutting machining on the taper hole is only about one hour commonly.
Description
Technical field
The present invention relates to injection molding, refer more particularly to the some pouring gate structure of injection molding.
Background technology
As everyone knows, injection molding all is provided with a cast gate.As shown in Figure 1, the some pouring gate structure of traditional injection molding comprises: be arranged on the some sprue bush 1 in the mould, the some cast gate in the some sprue bush 1 communicates with the die cavity of mould, and described some cast gate is made of the bellmouth 2 and the cylindrical hole 3 of mutual linking usually.Because it is cylindrical hole 3 that there is a straight section in the oral portion of hole irrigation, during injection moulding, differs and breaks from a cast gate root surely, thereby have influence on the product precision; In addition, this some cast gate adopts electric pulse processing usually, can not guarantee the fineness and the precision of bellmouth 2 and cylindrical hole 3, and process time is longer, is example with the mould of processing convertible frequency air-conditioner indoor and outdoor machine plastic magnetic rotor, and processing needs more than 20 hours.
Summary of the invention
Technical problem to be solved by this invention is: be convenient to the injection molding point pouring gate structure broken from a cast gate root when a kind of injection moulding is provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: injection molding point pouring gate structure comprises: be arranged on the some sprue bush in the mould, the some cast gate in the some sprue bush communicates with the die cavity of mould, and described some cast gate is full tapering bellmouth.
The taper angle of described full tapering bellmouth is between 1 ~ 30 degree.
The invention has the beneficial effects as follows: of the present invention some cast gate is the full tapering bellmouth of tapering unanimity from first to last, and during injection moulding, the some cast gate is convenient to from root break, and has improved the product precision greatly; In addition, this bellmouth can adopt perforation back line cutting earlier that it is processed.As everyone knows, the line cutting processing can improve the fineness and the precision of a cast gate greatly, has shortened process time, has improved working (machining) efficiency, mould with processing convertible frequency air-conditioner indoor and outdoor machine plastic magnetic rotor is an example, and this bellmouth of line cutting processing only needs about 1 hour usually.
Description of drawings
Fig. 1 is the perspective view of the fabric width trimming device described in the background technology.
Among the figure: 1, some sprue bush, 2, bellmouth, 3, cylindrical hole.
Fig. 2 is the perspective view of fabric width trimming device of the present invention.
Among the figure: 1, some sprue bush, 2, bellmouth.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 2, injection molding point pouring gate structure of the present invention comprises: be arranged on the some sprue bush 1 in the mould, the some cast gate in the some sprue bush 1 communicates with the die cavity of mould, and described some cast gate is full tapering bellmouth 2, and its taper angle is between 1 ~ 30 degree.
During making, adopt perforation back line cutting earlier that described full tapering bellmouth 2 is processed.As everyone knows, the line cutting processing can improve the fineness and the precision of a cast gate greatly, has shortened process time, has improved working (machining) efficiency.
Claims (2)
1. injection molding point pouring gate structure comprises: be arranged on the some sprue bush in the mould, the some cast gate in the some sprue bush communicates with the die cavity of mould, and it is characterized in that: described some cast gate is full tapering bellmouth.
2. injection molding point pouring gate structure as claimed in claim 1 is characterized in that: the taper angle of described full tapering bellmouth is between 1 ~ 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105275939A CN102029691A (en) | 2010-11-02 | 2010-11-02 | Pinpoint gate structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105275939A CN102029691A (en) | 2010-11-02 | 2010-11-02 | Pinpoint gate structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102029691A true CN102029691A (en) | 2011-04-27 |
Family
ID=43883403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105275939A Pending CN102029691A (en) | 2010-11-02 | 2010-11-02 | Pinpoint gate structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102029691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001129A (en) * | 2021-03-11 | 2021-06-22 | 森骏卓越精密模具（深圳）有限公司 | Processing method of fixed mold core of plastic mold and plastic mold |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244832A (en) * | 1996-12-10 | 2000-02-16 | 全美冈布尔公司 | Injection molding encapsulation for an electronic device directly onto a substrate |
| CN201220471Y (en) * | 2008-04-10 | 2009-04-15 | 李和鑫 | Automatic demoulding injection mold with traceless pouring head |
| WO2009072262A1 (en) * | 2007-12-05 | 2009-06-11 | Panasonic Corporation | Method and device for manufacturing battery pack |
| CN201841643U (en) * | 2010-11-02 | 2011-05-25 | 张家港倍恩特磁塑科技有限公司 | Pin-point gate structure of injection mould |
-
2010
- 2010-11-02 CN CN2010105275939A patent/CN102029691A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244832A (en) * | 1996-12-10 | 2000-02-16 | 全美冈布尔公司 | Injection molding encapsulation for an electronic device directly onto a substrate |
| WO2009072262A1 (en) * | 2007-12-05 | 2009-06-11 | Panasonic Corporation | Method and device for manufacturing battery pack |
| CN201220471Y (en) * | 2008-04-10 | 2009-04-15 | 李和鑫 | Automatic demoulding injection mold with traceless pouring head |
| CN201841643U (en) * | 2010-11-02 | 2011-05-25 | 张家港倍恩特磁塑科技有限公司 | Pin-point gate structure of injection mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001129A (en) * | 2021-03-11 | 2021-06-22 | 森骏卓越精密模具（深圳）有限公司 | Processing method of fixed mold core of plastic mold and plastic mold |
| CN113001129B (en) * | 2021-03-11 | 2022-03-11 | 森骏卓越精密智造(深圳)有限公司 | Processing method of fixed mold core of plastic mold and plastic mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110427 |