CN202753349U - Pouring system for lamp mould - Google Patents
Pouring system for lamp mould Download PDFInfo
- Publication number
- CN202753349U CN202753349U CN201220421038.2U CN201220421038U CN202753349U CN 202753349 U CN202753349 U CN 202753349U CN 201220421038 U CN201220421038 U CN 201220421038U CN 202753349 U CN202753349 U CN 202753349U
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- CN
- China
- Prior art keywords
- fixed
- plate
- mould
- barrel
- sprue bush
- Prior art date
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- Expired - Lifetime
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a pouring system for a lamp mould. The pouring system comprises a movable mould plate and a fixed mould plate, wherein a fixed mould insert block is fixed on the fixed mould plate, a movable mould insert block is fixed on the movable mould plate, a cavity is formed between the fixed mould insert block and the movable mould insert block, a main runner lining is arranged in the center of the fixed mould plate, the inner lateral wall of the main running lining is conical, an upper fixed plate is arranged above the fixed mould plate, a material barrel communicated with the main running lining is positioned on the upper fixed plate, and the axis of the material barrel deviates from the axis of the main runner lining. The pouring system for the lamp mould can stabilize flow speed, exhausts excessive air and guarantees quality of formed parts.
Description
Technical field
The utility model relates to a kind of injection mold, especially relates to a kind of running gate system of light fixture mould.
Background technology
Running gate system in the injection mold refers to that melt begins flow channel till the die cavity from the nozzle of injector, its effect is each corner of melt being introduced die cavity, and make Bas Discharged in the die cavity, and melt fill die cavity and the process of solidifying in, transmit pressure to each position of die cavity, so can running gate system directly have influence on injection moulding and carry out smoothly.Existing running gate system is particularly annotated the type cast gate, and the plastic cement melt directly goes out to inject die cavity from cast gate, easily produces bubble at the cast gate place, affects the quality of forming part.Such as Chinese patent Granted publication number: CN201530100U, July 21 2010 Granted publication day, disclosed a kind of sprue structure for injection mold, the cast gate mouth that comprises the sprue bush that is connected with mold, joins with sprue bush, described cast gate mouth is connected to heat sink, and described cast gate mouth is connected to heat sink.When melt rushes the injection of cast gate mouth, owing to melt flow is higher, easily air is carried secretly at the inlet of cast gate mouth to enter in the die cavity, cause forming in the forming part defectives such as bubble, greatly affect the quality of finished product.
The utility model content
The utility model is the deficiency that easily produces bubble in order to overcome melt in the prior art in injection process at the cast gate place, provides a kind of and can stablize flow velocity, got rid of unnecessary air, the running gate system of a kind of light fixture mould of collateral security forming part quality.
To achieve these goals, the utility model is by the following technical solutions:
The running gate system of a kind of light fixture mould of the present utility model, comprise solid plate and moving platen, be fixed with fixed die insert on the solid plate, be fixed with moving die insert on the moving platen, form die cavity between fixed die insert and the moving die insert, described solid plate center is provided with the sprue bush that madial wall is taper, and described solid plate top is provided with upper mounted plate, described upper mounted plate is provided with the barrel that communicates with sprue bush, the axis of the axis runout sprue bush of described barrel.The axis of the axis runout sprue bush of barrel, both axis do not overlap.When injecting, melt is injected into first in the barrel, and melt enters die cavity by the main flow sleeve bushing afterwards again in the barrel inner accumulated, enters die cavity thereby avoid carrying secretly bubble, has guaranteed the quality of forming part.
As preferably, the diameter of described barrel madial wall lower end becomes large formation enlarging gradually.Therefore the cross section of barrel madial wall lower end increases gradually, can reduce melt flow, stablizes the speed of melt.
As preferably, the lower end of described barrel madial wall is provided with some skewed slots.Skewed slot can increase cross-sectional area, further stablizes the speed of melt.
As preferably, the madial wall of described sprue bush and lower surface round-corner transition.Round-corner transition can be that the circulation of melt is more smooth, reduces simultaneously the residual stress of transition position, guarantees quantity of sintered parts.
Therefore, the utlity model has following beneficial effect: make melt flow comparatively stable, avoid melt to carry bubble secretly and enter die cavity, guarantee the quality of profiled member.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural representation of barrel of the present utility model.
Among the figure, solid plate 1, moving platen 2, moving die insert 3, fixed die insert 4, sprue bush 5, upper mounted plate 6, barrel 7, enlarging 7a, skewed slot 7b.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Among the embodiment as shown in Figure 1, a kind of running gate system of light fixture mould, comprise solid plate 1 and moving platen 2, be fixed with fixed die insert 4 on the solid plate 1, be fixed with moving die insert 3 on the moving platen 2, form die cavity between fixed die insert 4 and the moving die insert 3, solid plate 1 center is provided with sprue bush 5, and sprue bush 5 madial walls are taper.Solid plate 1 top is provided with upper mounted plate 6, and upper mounted plate 6 is provided with barrel 7, and barrel 7 communicates with sprue bush 5.The axis of the axis runout sprue bush 5 of barrel 7, both do not overlap off-centre.As shown in Figure 2, the diameter of barrel 7 madial wall lower ends becomes large formation enlarging 7a gradually.The lower end of barrel 7 madial walls is provided with some skewed slot 7b.Therefore when injecting, melt is introduced in the barrel 7, and can then flow into main flow sleeve bushing 5, and enter die cavity in barrel 7 inner accumulated, avoid bubble is brought in the die cavity, thus the quality of assurance forming part.The madial wall of sprue bush 5 and lower surface round-corner transition have reduced the residual stress of profiled member at transition position.
Claims (4)
1. the running gate system of a light fixture mould, comprise solid plate (1) and moving platen (2), be fixed with fixed die insert (4) on the solid plate (1), be fixed with moving die insert (3) on the moving platen (2), form die cavity between fixed die insert (4) and the moving die insert (3), it is characterized in that, described solid plate (1) center is provided with the sprue bush that madial wall is taper (5), described solid plate (1) top is provided with upper mounted plate (6), described upper mounted plate (6) is provided with the barrel (7) that communicates with sprue bush (5), the axis of the axis runout sprue bush (5) of described barrel (7).
2. the running gate system of a kind of light fixture mould according to claim 1 is characterized in that, the diameter of described barrel (7) madial wall lower end becomes large formation enlarging (7a) gradually.
3. the running gate system of a kind of light fixture mould according to claim 1 is characterized in that, the lower end of described barrel (7) madial wall is provided with some skewed slots (7b).
4. according to claim 1 and 2 or the running gate system of 3 described a kind of light fixture moulds, it is characterized in that the madial wall of described sprue bush (5) and lower surface round-corner transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421038.2U CN202753349U (en) | 2012-08-23 | 2012-08-23 | Pouring system for lamp mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421038.2U CN202753349U (en) | 2012-08-23 | 2012-08-23 | Pouring system for lamp mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202753349U true CN202753349U (en) | 2013-02-27 |
Family
ID=47732544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220421038.2U Expired - Lifetime CN202753349U (en) | 2012-08-23 | 2012-08-23 | Pouring system for lamp mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202753349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583664A (en) * | 2017-01-20 | 2017-04-26 | 东莞宏钰模具科技有限公司 | Center feeding mould of fan seat |
-
2012
- 2012-08-23 CN CN201220421038.2U patent/CN202753349U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583664A (en) * | 2017-01-20 | 2017-04-26 | 东莞宏钰模具科技有限公司 | Center feeding mould of fan seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |