CN205411667U - Integrated into one piece combined cover - Google Patents
Integrated into one piece combined cover Download PDFInfo
- Publication number
- CN205411667U CN205411667U CN201521044350.4U CN201521044350U CN205411667U CN 205411667 U CN205411667 U CN 205411667U CN 201521044350 U CN201521044350 U CN 201521044350U CN 205411667 U CN205411667 U CN 205411667U
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- Prior art keywords
- lid
- fluid passage
- pull ring
- plug
- thermoplastic elastomer
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- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Closures For Containers (AREA)
Abstract
The utility model discloses an integrated into one piece combined cover, including lid, plug and pull ring lid, the pull ring lid is provided with single general formula fluid passage including integrated into one piece's concave type lid and pull ring in the cavity of lid, and the up end correspondence of lid is provided with the pull ring lid, fluid passage's middle part is provided with sealed diaphragm, should sealed diaphragm keeps apart into independent last cavity, cavity down with fluid passage, and the internal thermoplastic elastomer that has directly moulded plastics of this epicoele, this thermoplastic elastomer directly mould plastics the plug that forms and last cavity and permeate and personally experience sth. Part of the body to with fluid passage upper portion opening complete sealing. The utility model discloses follow two aspects of product design and processing technology and start with, choose thermoplastic elastomer class plug for use, through the mode that the substep was moulded plastics, accomplish the shaping and the equipment of polypropylene lid and plug on an equipment, simple process, molding cycle is short, and product quality is effectively promoted.
Description
Technical field
This utility model relates to medical infusion packing technique field, is specifically related to a kind of one-body molded composite cover.
Background technology
Infusion bottle or transfusion bag are after liquid drug at present, need to seal bottle or transfusion bag with corresponding closing device, and this sealing device uses Pull ring cover more.This Pull ring cover is generally made up of three parts: inner cap, lid and the plug being placed between inner cap and lid.
Wherein plug is generally with polyisoprene rubber as raw material, and after preparing with die pressing, inner cap, lid and the shim pack of prior molding are combined together by utilization group lid equipment.This kind of technique production cycle is long, and the especially production process of plug is complicated, and easily causes secondary pollution in process of production, and the probability bringing foreign body in product into strengthens, and causes hidden danger of quality.
Utility model content
The problem existed for prior art, the purpose of this utility model is to provide the one-body molded composite cover that a kind of simple in construction, molding cycle are short, safety is high.
For achieving the above object, a kind of one-body molded composite cover of this utility model, including lid, plug and Pull ring cover, this Pull ring cover includes integrated matrix lid and draw ring, being provided with single-pass formula fluid passage in the cavity of lid, the upper surface of lid is correspondingly arranged on described Pull ring cover;The middle part of fluid passage is provided with sealing barrier film, fluid passage is isolated into independent upper cavity, lower chamber by this sealing barrier film, thermoplastic elastomer (TPE) directly it is molded with in this upper cavity, the plug that this thermoplastic elastomer (TPE) is directly molded combines together with upper cavity, and is fully sealed by fluid passage upper opening.
Further, the upper port edge of described lid is outward extended with welding ring, and described Pull ring cover seal weld is connected in welding ring.
Further, the middle part of described matrix lid is provided with the thin slice sealing against connection, and thin slice periphery is provided with easy-to-draw impression, and described draw ring is connected on thin slice.
Further, described thermoplastic elastomer (TPE) is polystyrene type elastomer or butyl rubber class elastomer.
Further, described sealing barrier film is planar structure, and thickness is 0.3-0.8mm.
Further, the external diameter of described upper cavity is less than or equal to the external diameter of described lower chamber.
This utility model is started with in terms of product design and processing technique two, selects thermoplastic elastomer (TPE) class plug, by the way of substep is molded, an equipment completes polypropylene lid and the molding of plug and assembling, technique is simple, and molding cycle is short, and product quality is effectively promoted.
Accompanying drawing explanation
Fig. 1 is this utility model axonometric chart;
Fig. 2 this utility model top view;
Fig. 3 is lid sectional view;
Fig. 4 is the sectional view after lid interior injection plug;
Fig. 5 be in Fig. 2 A-A to sectional view;
Wherein reference is: 1-lid, 2-plug, 3-Pull ring cover, 4-fluid passage, and 5-seals barrier film, 6-upper cavity, 7-welding ring, 8-matrix lid, 9-draw ring, 10-thin slice, the easy-to-draw impression of 11-, 12-lower chamber.
Detailed description of the invention
Below, with reference to accompanying drawing, this utility model is more fully illustrated, shown in the drawings of exemplary embodiment of the present utility model.But, this utility model can be presented as multiple multi-form, is not construed as the exemplary embodiment being confined to describe here.And it is to provide these embodiments, so that this utility model is fully and completely, and scope of the present utility model is fully conveyed to those of ordinary skill in the art.
For ease of explanation, here can use such as " on ", the space relative terms such as D score " left " " right ", for shown in explanatory diagram a element or feature relative to another element or the relation of feature.It should be understood that in addition to the orientation shown in figure, spatial terminology is intended to include device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as being positioned at the element of other elements or feature D score will be located into other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise position (90-degree rotation or be positioned at other orientation), relatively illustrates used herein of space correspondingly to explain.
As shown in Figures 1 to 5, a kind of one-body molded composite cover of this utility model, including lid 1, plug 2 and Pull ring cover 3, single-pass formula fluid passage 4 it is provided with in the cavity of lid 1, the upper surface of lid 1 is correspondingly arranged on Pull ring cover 3, the upper port edge of lid 1 is outward extended with welding ring 7, and Pull ring cover 3 seal weld is connected in welding ring 7.In the present embodiment, use Pull ring cover 3 corresponding to sealing fluid passage 4, outside can be effectively isolated, thus avoid the danger of cross infection.Fluid passage 4 can be used for liquid feeding, takes liquid, transfusion etc..
The middle part of fluid passage 4 is provided with sealing barrier film 5, and in the present embodiment, sealing barrier film 5 is planar structure, and thickness is 0.3-0.8mm, and without leak when this thickness had both ensured to be molded, when ensureing again transfusion, puncture needle easily pierces through sealing barrier film, does not ensures bits simultaneously.In actually used, barrier film 5 can be sealed according to demand and be set to various structures pattern.Seal barrier film 5 and not only act as sealing, also as the substrat structure of plug 2 injection.Sealing barrier film 5 and fluid passage 4 is isolated into independent upper cavity 6 and lower chamber 12, the external diameter of upper cavity 6 is equal to the external diameter of lower chamber 12.Directly being molded with thermoplastic elastomer (TPE) in upper cavity 6, the plug 2 that this thermoplastic elastomer (TPE) is directly molded combines together with upper cavity 6, and is fully sealed by fluid passage 4 upper opening.Plug 2 uses polystyrene type elastomer or butyl rubber class elastomer to make.
For convenience in the unlatching of Pull ring cover 3, Pull ring cover 3 includes integrated matrix lid 8, draw ring 9 and thin slice 10, the middle part of matrix lid 8 is provided with the thin slice 10 sealing against connection, thin slice 10 periphery is provided with easy-to-draw impression 11, draw ring 9 is connected on thin slice 10, and the combinative structure of draw ring 9 and thin slice 10 forms easy opening structure.
A kind of one-body molded composite cover of this utility model, concrete preparation technology comprises the steps:
1, special for polypropylene lid pellet and thermoplastic elastomer (TPE) plug pellet are placed in double material injection molding machine, substep injection: be molded by lid with the special pellet of polypropylene lid, wherein, one section of temperature of injection machine is 190-210 DEG C, two-stage nitration temperature is 200-220 DEG C, three sections of temperature are 200-225 DEG C, head temperature 210-230 DEG C, and injection pressure is 60-70MPa;
2, being directly molded by thermoplastic elastomer (TPE) plug 4 in lid upper cavity 6 with thermoplastic elastomer (TPE) plug pellet, wherein, one section of temperature of injection machine is 150-180 DEG C, two-stage nitration temperature is 160-180 DEG C, three sections of temperature are 165-185 DEG C, head temperature 170-190 DEG C, and injection pressure is 55-65MPa;
3, Pull ring cover 3 is finally welded.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is:
The external diameter of upper cavity 6 is less than the external diameter of lower chamber 12.
The one-body molded composite cover of this utility model, it is possible to realize the several functions such as dosing and transfusion, its advantage is as follows:
1, by changing product design and processing technique, lid 1 is one-body molded, eliminates the combinative structure that in prior art, the inner cap of composite cover, enclosing cover, plug etc. are complicated, the secondary pollution brought when decreasing fitment combination.
2, cleanliness factor is good, and safety is high.
3, technique is simple, and molding cycle is short, has higher cost advantage.
4, combine together with upper cavity due to plug, avoid the need for installing additional on plug top pad retainer ring, thus further simplify the overall structure of composite cover, simplify processing technique, saved cost.
Claims (6)
1. an one-body molded composite cover, it is characterised in that include lid, plug and Pull ring cover, Pull ring cover includes integrated matrix lid and draw ring, is provided with single-pass formula fluid passage in the cavity of lid, and the upper surface of lid is correspondingly arranged on described Pull ring cover;The middle part of fluid passage is provided with sealing barrier film, fluid passage is isolated into independent upper cavity, lower chamber by this sealing barrier film, thermoplastic elastomer (TPE) directly it is molded with in this upper cavity, the plug that this thermoplastic elastomer (TPE) is directly molded combines together with upper cavity, and is fully sealed by fluid passage upper opening.
One-body molded composite cover the most as claimed in claim 1, it is characterised in that the upper port edge of described lid is outward extended with welding ring, described Pull ring cover seal weld is connected in welding ring.
One-body molded composite cover the most as claimed in claim 1, it is characterised in that the middle part of described matrix lid is provided with the thin slice sealing against connection, thin slice periphery is provided with easy-to-draw impression, and described draw ring is connected on thin slice.
One-body molded composite cover the most as claimed in claim 1, it is characterised in that described thermoplastic elastomer (TPE) is polystyrene type elastomer or butyl rubber class elastomer.
One-body molded composite cover the most as claimed in claim 1, it is characterised in that described sealing barrier film is planar structure, thickness is 0.3-0.8mm.
One-body molded composite cover the most as claimed in claim 1, it is characterised in that the external diameter of described upper cavity is less than or equal to the external diameter of described lower chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201521044350.4U CN205411667U (en) | 2015-12-15 | 2015-12-15 | Integrated into one piece combined cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201521044350.4U CN205411667U (en) | 2015-12-15 | 2015-12-15 | Integrated into one piece combined cover |
Publications (1)
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CN205411667U true CN205411667U (en) | 2016-08-03 |
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CN201521044350.4U Active CN205411667U (en) | 2015-12-15 | 2015-12-15 | Integrated into one piece combined cover |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108789991A (en) * | 2018-08-28 | 2018-11-13 | 台州市欧铭包装机械科技有限公司 | Tear box cover die |
-
2015
- 2015-12-15 CN CN201521044350.4U patent/CN205411667U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108789991A (en) * | 2018-08-28 | 2018-11-13 | 台州市欧铭包装机械科技有限公司 | Tear box cover die |
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