CN202542040U - Bubble-free injection molding plastic cover - Google Patents
Bubble-free injection molding plastic cover Download PDFInfo
- Publication number
- CN202542040U CN202542040U CN2012200990614U CN201220099061U CN202542040U CN 202542040 U CN202542040 U CN 202542040U CN 2012200990614 U CN2012200990614 U CN 2012200990614U CN 201220099061 U CN201220099061 U CN 201220099061U CN 202542040 U CN202542040 U CN 202542040U
- Authority
- CN
- China
- Prior art keywords
- bubble
- sealing block
- injection molding
- free injection
- base
- 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 - Lifetime
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a bubble-free injection molding plastic cover. The injection molding product comprises a base and a sealing cover; the base is connected with the sealing cover by a rotating shaft arranged at one side; and the middle of the base is provided with a sealing block. According to a method, the thickness of the sealing block is increased to the thickness equal to that of the base; resin is subjected to injection molding in an injection molding machine; and an injection point for feeding the resin is arranged at the position of the sealing block. Compared with the prior art, the bubble-free injection molding plastic cover has the advantages of no bubbles, convenience in manufacturing and the like.
Description
Technical field
The utility model relates to a kind of production of plastic product, especially relates to a kind of bubble-free injection-moulded plastic lid.
Background technology
Because reaching, plastic pellet heating fusion is prone to produce bubble when in screw in injection molding machine, stirring; When injection moulding,, resin flows to the wall thickness place if approaching the place by wall; End is prone to the phenomenon of the not enough too fast cooling of resin flow velocity, and the part bubble is failed timely discharge and promptly is set in the product.Bubble very easily shows in opaque products, influences appearance, and it is also relatively poor to contain the firmness of product of bubble own, receives the external force easy of crack.Can improve this problem through changing raw material in the past, product colour had certain influence but change raw material, and a series of functional dimension and the test again of stable material quality property, it is longer to expend the cycle.The utility model mainly improves from the product design structure, solves the generation of air bubble problem.
Summary of the invention
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of good reliability, bubble-free injection-moulded plastic lid to be provided.
The purpose of the utility model can realize through following technical scheme: a kind of bubble-free injection-moulded plastic lid; It is characterized in that; This vinyl cover comprises base, seal closure, and described base is connected through the rotating shaft that is arranged on the one of which side with seal closure, is provided with sealing block in the middle of the described base.
The thickness of described sealing block is identical with the thickness of base
Described sealing block is provided with the filling point.
The shape of described sealing block and the shape of seal closure are complementary.
Be provided with opening in the middle of the described sealing block.
The thickness of described base, seal closure is identical.
The generation of bubble mainly is because resin flows to the wall thickness place by the thin place of wall, and the phenomenon of the not enough too fast cooling of resin flow velocity appears in end, and the part bubble is failed timely discharge and is set in the product.The said bubble-free injection-moulded plastic lid of the utility model; Be to be that product is irritated place, a some place wall thickness and strengthened and make it identical with resin flow terminad place wall thickness with the resin decanting point; Still can keep certain temperature when injecting the product end with the assurance resin, be unlikely to too fast cooling, bubble can in time be discharged.
Compared with prior art, the utlity model has following advantage:
One, solves the product air bubble problem, guarantee the attractive in appearance and fastness function of product appearance.
Two, keep existing raw material, remove from because of the required size that repeats of raw material change, function and stability test etc. and consequent product discoloration problem.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment 1
As shown in Figure 1; A kind of bubble-free injection-moulded plastic lid comprises base 1, seal closure 3, and described base 1 is connected through the rotating shaft 4 that is arranged on the one of which side with seal closure 3; Be provided with sealing block 2 in the middle of the described base 1; The enlarged in thickness of sealing block 2 is extremely identical with the thickness of base 1, and with resin injection mo(u)lding in injection machine, the filling point 5 of resin feeding is arranged on sealing block 2 places.
The shape of the shape of described sealing block 2 and seal closure 3 is complementary.Be provided with opening 6 in the middle of the described sealing block 2.
The thickness of described base, seal closure is identical.
With sealing block 2 thickenings of the thin place of original product wall until being that base is identical with seal closure thickness with product wall thickness place; So during injection mo(u)lding, resin goes out charging by irritating point 5, flow velocity is even when flowing to base and seal closure by sealing block 2; Resin still can keep certain temperature; Be unlikely to too fast cooling, bubble can in time be discharged, and is being prone to produce the bubble phenomenon that the bubble face is occurred thereby improve originally.
Claims (6)
1. a bubble-free injection-moulded plastic lid is characterized in that this vinyl cover comprises base, seal closure, and described base is connected through the rotating shaft that is arranged on the one of which side with seal closure, is provided with sealing block in the middle of the described base.
2. a kind of bubble-free injection-moulded plastic lid according to claim 1 is characterized in that the thickness of described sealing block is identical with the thickness of base.
3. a kind of bubble-free injection-moulded plastic lid according to claim 1 is characterized in that described sealing block is provided with the filling point.
4. a kind of bubble-free injection-moulded plastic lid according to claim 1 is characterized in that the shape of described sealing block and the shape of seal closure are complementary.
5. a kind of bubble-free injection-moulded plastic lid according to claim 1 is characterized in that, is provided with opening in the middle of the described sealing block.
6. a kind of bubble-free injection-moulded plastic lid according to claim 1 is characterized in that the thickness of described base, seal closure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200990614U CN202542040U (en) | 2012-03-15 | 2012-03-15 | Bubble-free injection molding plastic cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200990614U CN202542040U (en) | 2012-03-15 | 2012-03-15 | Bubble-free injection molding plastic cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542040U true CN202542040U (en) | 2012-11-21 |
Family
ID=47162710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200990614U Expired - Lifetime CN202542040U (en) | 2012-03-15 | 2012-03-15 | Bubble-free injection molding plastic cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217224A1 (en) * | 2020-04-28 | 2021-11-04 | Albea Do Brasil Embalagens Ltda | Cap for a container |
-
2012
- 2012-03-15 CN CN2012200990614U patent/CN202542040U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217224A1 (en) * | 2020-04-28 | 2021-11-04 | Albea Do Brasil Embalagens Ltda | Cap for a container |
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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: 20121121 |
|
| CX01 | Expiry of patent term |