CN201525125U - Mould head for multi-layer co-extruding bottle blowing - Google Patents
Mould head for multi-layer co-extruding bottle blowing Download PDFInfo
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- CN201525125U CN201525125U CN2009202629671U CN200920262967U CN201525125U CN 201525125 U CN201525125 U CN 201525125U CN 2009202629671 U CN2009202629671 U CN 2009202629671U CN 200920262967 U CN200920262967 U CN 200920262967U CN 201525125 U CN201525125 U CN 201525125U
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Abstract
The utility model relates to a mould head for multi-layer co-extruding bottle blowing, aiming at solving the problems of difficult processing, easy occurrence of nonuniform downward feeding, complicated structure of a mould and the like in the prior art. The mould head for multi-layer co-extruding bottle blowing is characterized by comprising a mould body, mould sleeves, a mouth mould, a mouth mould core, a mandrel and a mandrel sleeve; the mould sleeve is positioned in the mould body, two or more than two mould sleeves are provided with ring-shaped flow troughs; a flow sandwiched layer is formed between the mould sleeves; the lower end of the mandrel is connected with the mouth mould core and positioned at the center of the mould sleeve; the mandrel sleeve is sheathed outside the mandrel; and the mandrel sleeve and the mouth mould core form convergent flow channels respectively with the mould sleeves; the mouth mould is fixed at the lower end opening of the convergent flow channel; the mouth mould core is positioned at the center of the mouth mould; the mouth mould core and the mouth mould form an extruding discharge port; the mould body is provided with feed ports respectively led to the ring-shaped flow troughs; and a gas blowing outlet of the mouth mould core is led out of the mould head via the mouth mould core and a gas path in the mandrel. The mould head for multi-layer co-extruding bottle blowing is characterized in that the ring-shaped flow troughs on the mould sleeves provided with the ring-shaped flow troughs are arranged horizontally; and the matching between the mould sleeves adopts a stacked structure, and the like.
Description
Technical field
The utility model relates to a kind of workpiece of plastic molding machinery, specifically is meant the die head that a kind of multi-layer co-extruded bottle blowing is used.
Background technology
Multi-layer co-extruded bottle blowing technique is exactly to adopt two or more plastic raw materials, after making every kind of plastic raw materials fusion plastification respectively by the extruder more than two, in the common input one secondary die head, extrude and obtain the MULTILAYER COMPOSITE bottle base, by the bottle blowing technological forming, acquisition has the packing plastic bottle of the excellent serviceability of two or more different plastic properties layers again.The similar die head that multi-layer co-extruded bottle blowing is used, structure generally comprises die body, die sleeve more than three or three, the mouth mould, the mouth core rod, mandrel and core sleeve, die sleeve more than three or three is in the die body, wherein there is die sleeve more than two or two to be provided with the annular chute of indent, constitute stream feed collet layer between die sleeve and the die sleeve, mandrel is in the die sleeve center, the mandrel lower end is connected with a mouthful core rod, core sleeve is set in the mandrel outside, the outer surface of core sleeve and mouthful core rod confluxes with the inner surface formation of die sleeve respectively and flows the material road, the mouth mould is fixed on the die body outside of the stream material road lower port of confluxing, the mouth core rod is in a mouthful mould center, mouth core rod outer surface constitutes an extruded stock mouth with a mouthful mould inner surface, have charging aperture more than two or two to lead to annular chute on the die sleeve respectively on the die body, air blowing outlet per os core rod on mouthful core rod bottom surface and the gas circuit in the mandrel are led to outside the die head.There is such problem in the multi-layer co-extruded bottle blowing that generally uses with die head at present: the one, and the annular chute on the die sleeve is a heeling condition, and difficulty of processing is big, and precision is difficult for guaranteeing, causes down annular feeding inequality easily.The 2nd, the cooperation between the die sleeve is one and is overlapping one, cause the charging aperture of die body side will lead to annular chute at interior die sleeve, must pass stream feed collet layer or other stream material passage in its outside, thereby caused the mould structure complexity, and had influence on the feeding uniformity of outer effluent feed collet layer or other stream material passage.The 3rd, lack reliably between die sleeve and the die sleeve, between die sleeve and the die body that the location is provided with, the interface dislocation that causes charging aperture to lead to die sleeve annular chute has easily increased transporting resistance and has influenced the smoothness of feeding.
Summary of the invention
First purpose of the present utility model provides a kind of improved multi-layer co-extruded bottle blowing die head, to have the annular chute on the die sleeve be heeling condition to overcome prior art, difficulty of processing is big, and precision is difficult for guaranteeing, causes the defective of down annular feeding inequality easily.
Second purpose of the present utility model provides a kind of improved multi-layer co-extruded bottle blowing die head, exist cooperation between the die sleeve to be one to overlap one to overcome prior art, cause the charging aperture of die body side will lead to annular chute at interior die sleeve, must pass stream feed collet layer or other stream material passage in its outside, thereby caused the mould structure complexity, and the inhomogeneity defective of feeding of the outer effluent feed collet layer of influence or other stream material passage.
The 3rd purpose of the present utility model provides a kind of improved multi-layer co-extruded bottle blowing die head, prior art exists between die sleeve and the die sleeve to overcome, lack reliably between die sleeve and the die body that the location is provided with, the interface dislocation that causes charging aperture to lead to die sleeve annular chute has easily increased transporting resistance and has influenced the defective of the smoothness of feeding.
The utility model is to reach the technical scheme that first purpose adopts to be: a kind of multi-layer co-extruded bottle blowing die head, structure comprises die body, die sleeve more than three or three, the mouth mould, the mouth core rod, mandrel and core sleeve, die sleeve more than three or three is in the die body, wherein there is die sleeve more than two or two to be provided with the annular chute of indent, constitute stream feed collet layer between die sleeve and the die sleeve, mandrel is in the die sleeve center, the mandrel lower end is connected with a mouthful core rod, core sleeve is set in the mandrel outside, the outer surface of core sleeve and mouthful core rod confluxes with the inner surface formation of die sleeve respectively and flows the material road, the mouth mould is fixed on the die body outside of the stream material road lower port of confluxing, the mouth core rod is in a mouthful mould center, mouth core rod outer surface constitutes an extruded stock mouth with a mouthful mould inner surface, there is charging aperture more than two or two to lead to annular chute on the die sleeve respectively on the die body, air blowing outlet per os core rod on mouthful core rod bottom surface and the gas circuit in the mandrel are led to outside the die head, it is characterized in that: wherein be provided with annular chute on the die sleeve of annular chute for being horizontally disposed with.
Annular chute on the above-mentioned so-called die sleeve is that to be horizontally disposed be that the central axis of relative die sleeve is under the plumbness.
On the basis of technique scheme, the utility model is to reach second technical scheme that purpose adopted to be: one folded one structure is adopted in the cooperation between the described die sleeve more than three or three, and the skirt section that is in following die sleeve is engaged in the annular chute outside that is in top die sleeve, and the charging aperture of die body side leads to the annular chute that is in top die sleeve through the through hole that is on the following die sleeve skirt section respectively.
On the basis of technique scheme, the utility model is to reach the 3rd technical scheme that purpose adopted to be: be provided with shop bolt in its vertical contact position between described die sleeve and the die sleeve, be in and be provided with the screw thread shop bolt between uppermost die sleeve and the die body, be provided with positioning key between uppermost die sleeve and the core sleeve.
The mouth mould of technique scheme can be that through port mold pressing ring is fixed on the die body outside with fixedlying connected of die body by a mouthful mold pressing ring.
The die body end face of technique scheme can be fixedly connected with a pressing plate, the adjusting nut that has been rotatably assorted on the pressing plate, and the top threaded engagement of core sleeve is regulated with the axial displacement that realizes core sleeve on adjusting nut.
The die body end face of technique scheme can be provided with support, and mandrel top threaded engagement is regulated with the axial displacement that realizes mandrel on the up-down adjustment nut of support.
Air blowing outlet per os core rod on the mouth core rod bottom surface of technique scheme and the gas circuit in the mandrel, and can lead to outside the die head by the air blowing import of mandrel upper end, can reach die head like this and oversimplify.
Technique scheme die head can be the single mode die head, also can be two and be located at together bimodulus die head, also can be a plurality of and be located at together multimode die head.
The beneficial effects of the utility model: be horizontally disposed with owing to the annular chute on the die sleeve is made, so annular chute processing is simpler, machining accuracy is easy to guarantee, facts have proved horizontally disposed annular chute down the good uniformity of annular feeding in the annular chute that is obliquely installed.Because the cooperation between the die sleeve more than three or three is to adopt one folded one structure, and the skirt section that is in following die sleeve is engaged in the annular chute outside that is in top die sleeve, charging aperture leads to the annular chute that is in top die sleeve through the through hole that is in following die sleeve skirt section respectively, so all charging apertures lead to the annular chute of die sleeve respectively, all need not stream feed collet layer or other stream material passage through the die sleeve outside, can simplify mould structure greatly, and improve the feeding uniformity of stream feed collet layer or other stream material passage.Owing to be provided with shop bolt in its vertical contact position between die sleeve and the die sleeve, be in and be provided with the screw thread shop bolt between uppermost die sleeve and the die body, be provided with positioning key between uppermost die sleeve and the core sleeve, so charging aperture lead to die sleeve annular chute interface to align precision good, reduced transporting resistance and improved the smoothness of feeding.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the vertical profile schematic diagram of an embodiment of the utility model.
Fig. 2 be the die sleeve 2 of Fig. 1 separate do not cut open the time enlarged diagram.
Among the figure: 1, die body; 2,3,4,5,6 and 7, die sleeve; 8, mouthful mould; 9, mouthful core rod; 10, mandrel; 11, core sleeve; 12,13,14,15 and 16, annular chute; 17, stream feed collet layer; 18, the stream material road that confluxes; 19, extruded stock mouth; 20,21,22,23 and 24, charging aperture; 25, air blowing outlet; 26, die sleeve skirt section; 27, through hole; 28 and 29, die head; 30, shunt shaft; 31, annular chute; 32, shop bolt; 33, pressing plate; 34, screw thread shop bolt; 35, positioning key; 36, screw thread shop bolt; 37, mouthful mold pressing ring; 38, screw; 39, adjusting nut; 40, screw; 41, support; 42 and 43, nut; 44, central axis.
The specific embodiment
With reference to Fig. 1～Fig. 2, this multi-layer co-extruded bottle blowing die head, being one makes symmetry by the five-layer co-squeezing bottle blowing of two same structures with die head and is located at together bimodulus die head, structure with regard to one of them die head, comprise die body 1, six die sleeves 2,3,4,5,6 and 7, mouth mould 8, mouth core rod 9, mandrel 10 and core sleeve 11, six die sleeves are in the die body 1, five die sleeves 2 are wherein arranged, 3,4, be respectively equipped with the annular chute 12 of indent on 5 and 6,13,14,15 and 16, constitute stream feed collet layer 17 etc. between die sleeve 2 grades and the die sleeve 3 etc., mandrel 10 is in die sleeve 2,3,4,5,6 and 7 center, the lower end of mandrel 10 is threaded with a mouthful core rod 9, core sleeve 11 is set in mandrel 10 outsides, the outer surface of core sleeve 11 and mouthful core rod 9 respectively with die sleeve 2,3,4,5,6 and 7 inner surface constitutes the stream material road 18 that confluxes, mouth mould 8 is fixed on die body 1 outside of stream material road 18 lower port of confluxing, mouth core rod 9 is in mouthful mould 8 centers, mouth core rod 9 outer surfaces constitute an extruded stock mouth 19 with mouthful mould 8 inner surfaces, five charging apertures 20 are arranged on the die body, 21,22,23 and 24 lead to die sleeve 2 respectively, 3,4, annular chute 12 on 5 and 6,13,14,15 and 16, the gas circuits that air blowing on mouth core rod 9 bottom surfaces exports in 25 per os core rods 9 and the mandrel 10 are led to outside the die head, feature is a die sleeve 2,3,4, annular chute 12 on 5 and 6,13,14,15 and 16 are and are horizontally disposed with, i.e. state as shown in Figure 2.
In addition, one folded one structure is adopted in cooperation between six die sleeves 2,3,4,5,6 and 7, and the skirt section 26 etc. that is in following die sleeve 3 etc. is engaged in the outsides such as annular chute 12 that are in top die sleeve 2 etc., and charging aperture 20 grades on the die body 1 are led to the annular chute 12 that is in top die sleeve 2 through through hole 27 grades that are on 26 grades of following die sleeve skirt section respectively.
Be provided with a shunt shaft 30 in the centre of two die heads 28,29 on the die body 1, five charging apertures 20,21,22,23 and 24 on the die body are respectively through shunt shaft 30, the two tunnel annular chutes 12,31 etc. that lead to two die heads 28,29 respectively about being divided into, i.e. five charging apertures 20,21,22,23 on the die body and 24 shared by two die heads 28,29.
Be provided with shop bolt 32 etc. between die sleeve 3 grades and the die sleeve 4 etc. in its vertical contact position, be between the pressing plate 33 on uppermost die sleeve 2 and the die body 1 and be provided with screw thread shop bolt 34, be provided with positioning key 35 between uppermost die sleeve 2 and the core sleeve 11, in addition, also be provided with other screw thread shop bolt 36 between die head 3 and the die body 1, make the relative position between die body 1 interior each part be able to reliable location with this.
Mouth mould 8 is that through port mold pressing ring 37 is fixed on die body 1 outside with fixedlying connected of die body 1 by a mouthful mold pressing ring 37, and a mouthful mold pressing ring 37 is to be fixedlyed connected with die body 1 by screw 38 grades.
Die body 1 end face is fixedly connected with a pressing plate 33, adjusting nut 39 has been rotatably assorted on the pressing plate 33, the top threaded engagement of core sleeve 11 is regulated with the axial displacement that realizes core sleeve on adjusting nut 39, and pressing plate 33 is to fixedly connected with die body 1 end face by screw 40 grades.
Die body 1 end face is fixed with support 41, and mandrel 10 top threaded engagement are regulated with the axial displacement that realizes mandrel on the up-down adjustment nut 42,43 of support 41.
Air blowing on mouth core rod 9 bottom surfaces exports the center gas circuit in 25 per os core rods 9 and the mandrel 10, and is led to outside the die head by the air blowing import of mandrel 10 upper ends.
In the use, by five extruders respectively with behind five kinds of different plastic raw materials fusion plastifications, respectively by five charging apertures 20 on the die body 1,21,22,23 and 24, all about being divided into, shunt shaft two the road simultaneously plastic raw materials is carried toward two die heads 28, the annular chute 12 of each die sleeve in 29,31 etc., plastic raw materials is evenly down carried along stream feed collet layer 17 that constitutes between die sleeve 2 grades and the die sleeve 3 etc. etc. then, be pooled to core sleeve 11 and mouthful core rod 9 and die sleeve 2 then, 3,4,5, constituting the stream material road 18 that confluxes between 6 and 7 etc. down carries again, extrude from the extruded stock mouth 19 of formations such as mouth core rod 9 grades and mouthful mould 8 then, become and have the compound bottle base of the different plastics of multilayer, at this moment the air blowing outlet 25 on mouthful core rod 9 bottom surfaces is blown in bottle base, utilize the mould in the bottle base outside to carry out moulding and solidify, thereby obtain to have the packing plastic bottle of the excellent serviceability of five kinds of different plastic properties layers.
If have the plastic raw materials of two plastic layers identical in five plastic layers, then can be by four extruders respectively with four kinds of different plastic raw materials fusion plastifications, again by preceding part flow arrangement respectively with die body 1 on five charging apertures 20,21,22,23 be connected with 24; If have the plastic raw materials of three plastic layers identical in five plastic layers, then can be by three extruders respectively with three kinds of different plastic raw materials fusion plastifications, again by preceding part flow arrangement respectively with die body 1 on five charging apertures 20,21,22,23 be connected with 24.
Claims (9)
1. multi-layer co-extruded bottle blowing die head, structure comprises die body, die sleeve more than three or three, the mouth mould, the mouth core rod, mandrel and core sleeve, die sleeve more than three or three is in the die body, wherein there is die sleeve more than two or two to be provided with the annular chute of indent, constitute stream feed collet layer between die sleeve and the die sleeve, mandrel is in the die sleeve center, the mandrel lower end is connected with a mouthful core rod, core sleeve is set in the mandrel outside, the outer surface of core sleeve and mouthful core rod confluxes with the inner surface formation of die sleeve respectively and flows the material road, the mouth mould is fixed on the die body outside of the stream material road lower port of confluxing, the mouth core rod is in a mouthful mould center, mouth core rod outer surface constitutes an extruded stock mouth with a mouthful mould inner surface, there is charging aperture more than two or two to lead to annular chute on the die sleeve respectively on the die body, air blowing outlet per os core rod on mouthful core rod bottom surface and the gas circuit in the mandrel are led to outside the die head, it is characterized in that: wherein be provided with annular chute on the die sleeve of annular chute for being horizontally disposed with.
2. by the described a kind of multi-layer co-extruded bottle blowing die head of claim 1, it is characterized in that the structure of folding of cooperation employing between the described die sleeve more than three or three, and the skirt section that is in following die sleeve is engaged in the annular chute outside that is in top die sleeve, and the charging aperture of die body side leads to the annular chute that is in top die sleeve through the through hole that is on the following die sleeve skirt section respectively.
3. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that being provided with shop bolt in its vertical contact position between described die sleeve and the die sleeve, be in and be provided with the screw thread shop bolt between uppermost die sleeve and the die body, be provided with positioning key between uppermost die sleeve and the core sleeve.
4. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that described mouthful of mould through port mold pressing ring is fixed on the die body outside with fixedlying connected of die body by a mouthful mold pressing ring.
5. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that described die body end face is fixedly connected with a pressing plate, the adjusting nut that has been rotatably assorted on the pressing plate, the top threaded engagement of core sleeve is on adjusting nut.
6. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that described die body end face is fixed with support, mandrel top threaded engagement is on the up-down adjustment nut of support.
7. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that described mouthful of air blowing outlet per os core rod and the interior gas circuit of mandrel on the core rod bottom surface, and lead to outside the die head by the air blowing import of mandrel upper end.
8. by claim 1 or 2 described a kind of multi-layer co-extruded bottle blowing die heads, it is characterized in that described die head is the single mode die head, or two die heads and be located at together bimodulus die head, or a plurality of die head and be located at together multimode die head.
9. by the described a kind of multi-layer co-extruded bottle blowing die head of claim 8, it is characterized in that described die head is the bimodulus die head, be provided with a shunt shaft in the middle of two die heads, the charging aperture on the die body is respectively through shunt shaft, is divided into the two tunnel annular chutes that lead to two die heads respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202629671U CN201525125U (en) | 2009-11-10 | 2009-11-10 | Mould head for multi-layer co-extruding bottle blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202629671U CN201525125U (en) | 2009-11-10 | 2009-11-10 | Mould head for multi-layer co-extruding bottle blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201525125U true CN201525125U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202629671U Expired - Fee Related CN201525125U (en) | 2009-11-10 | 2009-11-10 | Mould head for multi-layer co-extruding bottle blowing |
Country Status (1)
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| CN (1) | CN201525125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340559A (en) * | 2018-01-17 | 2018-07-31 | 罗弟容 | A kind of blow molding apparatus |
| CN110789104A (en) * | 2019-09-26 | 2020-02-14 | 江苏龙灯博士摩包装材料有限公司 | Blowing machine neck mold mechanism capable of eliminating burrs of small-caliber plastic bottle |
-
2009
- 2009-11-10 CN CN2009202629671U patent/CN201525125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340559A (en) * | 2018-01-17 | 2018-07-31 | 罗弟容 | A kind of blow molding apparatus |
| CN110789104A (en) * | 2019-09-26 | 2020-02-14 | 江苏龙灯博士摩包装材料有限公司 | Blowing machine neck mold mechanism capable of eliminating burrs of small-caliber plastic bottle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20121110 |