CN201439229U - Movable mold for fastener of blowing and vacuum molding packing box - Google Patents
Movable mold for fastener of blowing and vacuum molding packing box Download PDFInfo
- Publication number
- CN201439229U CN201439229U CN2009201304140U CN200920130414U CN201439229U CN 201439229 U CN201439229 U CN 201439229U CN 2009201304140 U CN2009201304140 U CN 2009201304140U CN 200920130414 U CN200920130414 U CN 200920130414U CN 201439229 U CN201439229 U CN 201439229U
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- China
- Prior art keywords
- fastener
- movable
- mold
- blowing
- demolding
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- Expired - Lifetime
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Abstract
The utility model discloses a movable mold for a fastener of a blowing and vacuum molding packing box, which is formed by an outer mold, an inner mold and a fixing bracket, and is characterized in that the inner mold is formed by two movable inserts, a spring and a hinge shaft, the upper end of the movable insert is provided with a projection and the lower end of the movable insert is provided with a swinging arm, the middle is a connecting part with which two movable inserts are movably interconnected, and a spring is arranged between two swinging arms; the majority of the current molds for producing the fastener is fixed-type, i.e. the narrow neck of the fastener leads to difficult demolding or great possibility of damaging the fastener during the demolding, which is adverse to the production of deep-neck fasteners especially. In the movable mold, the inner mold can movably rotate, demolding resistance can be reduced by means of the rotation of the inner mold and the reduction of distance between projections during the production of the deep-neck fasteners, thus not damaging the neck by pulling, lowering the rejection rate, having no need for the assistance of an ejector rod and realizing easy demolding.
Description
[technical field]
The utility model relates to a kind of mould, relates in particular to the flexible mould of blowing, plastic uptake plastic packing box fastener.
[background technology]
Apply to pack, the pack plastic casing of food needs repeated open and closes, and has designed a kind of movable fastener that makes things convenient for fastening and open thus on this packing box, and this fastener is arranged on the opening part of box, detains up and down to be used.The structure of fastener normally has an eck, and there is the bayonet socket of projection the inside.
In the traditional mode of production process, be to use a fixed profile and the equiform mould of fastener, compressed air is blown into sheet material behind the external mold matched moulds, mould enveloped with this form needed fastener shape, after formed product was finished, external mold was opened, and machine clips the demoulding of moulding fastener.The mould of this fixed profile is externally held little, and inside end is big, is difficult for the demoulding, perhaps very easily damages fastener in the demoulding.Especially in the time that the fastener with dark eck need be produced, also need the auxiliary demoulding ability of external push rod structure ordinary production.
[summary of the invention]
The utility model provides the dark neck fastener of a kind of convenient production for addressing the above problem, has not needed push rod to assist, be easy to the flexible mould of the demoulding.
The technical scheme that the utility model addresses the above problem is: the flexible mould of described blowing, blister plastic packaging box fastener is made of external mold, internal mold and fixed support, described outer die casing covers outside the internal mold, the internal mold bottom is fixed on the fixed support, it is characterized in that, described internal mold comprises two movable inserts, flexible member, jointed shaft, it is swing arm that there are the protruding position, the lower end that match with fastener in two movable insert upper ends, the centre is a connecting portion, two movable inserts are hinged by connecting portion and jointed shaft, between two swing arms spring arranged.
In the demoulding, product is pulled, and gives swing arm one pressure, and goods of furniture for display rather than for use tightens up, and distance is dwindled between the corresponding two protruding positions, and ejection resistance reduces.After finishing the sheet forming demoulding, replying under the pressure of flexible member is original state, in order to the next course of work.
The beneficial effects of the utility model are: the movable rotation of the utility model internal mold, when producing the fastener of dark eck, can rotate, the distance of dwindling between the two protruding positions reduces ejection resistance, can not pull fastener, reduce percent defective, not need push rod to assist, be easy to the demoulding.
[description of drawings]
Fig. 1 is the utility model one example structure schematic diagram;
Among the figure: 1, adventitia; 2, internal mold; 2.1, movable insert; 2.11, protruding position; 2.12, swing arm; 2.13, connecting portion; 2.14, shaft hole; 2.2, spring; 2.3, jointed shaft; 3, fixed support.
[specific embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.
With reference to accompanying drawing, the flexible mould of described blowing, blister plastic packaging box fastener is made of external mold 1, internal mold 2 and fixed support 3, described external mold 1 cover covers outside the internal mold 2, internal mold 2 bottoms are fixed on the fixed support 3, it is characterized in that, described internal mold 2 has two movable inserts 2.1, spring 2.2, jointed shaft 2.3, it is swing arm 2.12 that there are the protruding position 2.11, the lower end that match with fastener in two movable inserts, 2.1 upper ends, the centre is a connecting portion 2.13, two movable inserts are hinged by connecting portion and jointed shaft, between two swing arms spring arranged.
The connecting portion 2.13 at described connection two positions has shaft hole 2.14, one jointed shafts 2.3 and runs through connection two movable inserts 2.1, and two movable inserts 2.1 are movably connected, and two movable inserts 2.1 rotate by shaft hole 2.14.
Product finish moulding after, external mold 1 is opened, product is held part and clamps pulling and begin to break away from internal mold 2, this moment is because eck is narrow, the pulling force of pulling produces compressing power can for swing arm 2.12, and swing arm 2.12 compression springs 2.2 also tighten up, so two movable insert 2.1 integral body rotate, drive between the corresponding two protruding positions 2.11 distance and dwindle, ejection resistance reduces.After finishing the sheet forming demoulding, replying under the pressure of spring 2.2 is original state, in order to the next course of work.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. the flexible mould of a blowing, blister plastic packaging box fastener, it is made of external mold, internal mold and fixed support, it is characterized in that, described internal mold is made of two movable inserts, spring, jointed shafts, it is swing arm that there are the protruding position, the lower end that match with fastener in two movable insert upper ends, the centre is a connecting portion, and two movable inserts are hinged by connecting portion and jointed shaft, between two swing arms spring is arranged.
2. according to the flexible mould of the described blowing of claim 1, blister plastic packaging box fastener, it is characterized in that described external mold covers outside the internal mold, the internal mold bottom is fixed on the fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201304140U CN201439229U (en) | 2009-03-31 | 2009-03-31 | Movable mold for fastener of blowing and vacuum molding packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201304140U CN201439229U (en) | 2009-03-31 | 2009-03-31 | Movable mold for fastener of blowing and vacuum molding packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439229U true CN201439229U (en) | 2010-04-21 |
Family
ID=42543898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201304140U Expired - Lifetime CN201439229U (en) | 2009-03-31 | 2009-03-31 | Movable mold for fastener of blowing and vacuum molding packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201439229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434123A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Spring mould of plastic-adsorption packing box fastener |
| CN103434125A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Movable mould of plastic-adsorption packing box fastener |
| CN103434124A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Spring plate mould of plastic-adsorption packing box fastener |
-
2009
- 2009-03-31 CN CN2009201304140U patent/CN201439229U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434123A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Spring mould of plastic-adsorption packing box fastener |
| CN103434125A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Movable mould of plastic-adsorption packing box fastener |
| CN103434124A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Spring plate mould of plastic-adsorption packing box fastener |
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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: 20100421 |
|
| CX01 | Expiry of patent term |