CN101670657A - Triple extrusion die head with low center - Google Patents
Triple extrusion die head with low center Download PDFInfo
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- CN101670657A CN101670657A CN200910272321A CN200910272321A CN101670657A CN 101670657 A CN101670657 A CN 101670657A CN 200910272321 A CN200910272321 A CN 200910272321A CN 200910272321 A CN200910272321 A CN 200910272321A CN 101670657 A CN101670657 A CN 101670657A
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Abstract
The invention discloses a triple extrusion die head with a low center, wherein, an inner layer feed inlet (12), a middle layer feed inlet (13) and an outer layer feed inlet (14) are positioned in a same plane and the center-height of which is H. The invention overcomes the defects that the runner of the existing triple extrusion die head has long length, the amount of polymer accumulated in the center of a die is large, the time needed for changing the resin or the color is long, and the cooling efficiency is low and the like. The distribution design of the invention reduces the height of thedie head, shortens the length of the runner, improves the cooling efficiency, ensures more convenient operation of the film pulling, reduces the amount of polymer accumulated in the die head, and leads the changing of the material or the color more rapid.
Description
Technical field
The present invention relates to a kind of plastic sheeting manufacturing machine field, more particularly it is a kind of low center triple extrusion die head.
Background technology
Existing triple extrusion die head feeding manner adopts the concentric-ring pattern core retainer plate to come stratified feeding mostly, and the center line of three layers of charging aperture has certain height poor not on same horizontal plane, and this just requires the extruder centre-height difference of each layer.Such feeding manner has increased the length in each laminar flow road, the storage height of mold center's polymer, and the whole height of mould is higher.This possibility that can make the die head interpolymer decompose increases, it is long to change resin or color required time, and it is short from the center line relative distance of main traction that die head goes out die orifice, that is goes up the traction effective depth and reduce, cooling effectiveness reduces, and extruder centre-height difference has increased the manufacture difficulty of extruder again.
Summary of the invention
The objective of the invention is to overcome above-mentioned existing disadvantages of background technology part, and a kind of low center triple extrusion die head is provided.
The objective of the invention is to reach: a kind of low center triple extrusion die head by following measure, the internal layer charging aperture, middle level charging aperture, the outer charging aperture that it is characterized in that it are positioned on the same plane that centre-height is H, described internal layer charging aperture is successively by the passage in the sealing shroud, the outer passage that divides on the fluid, the passage that leads on the internal layer conveyor screw that the passage that forms between connected body and the right plug, internal layer divide the passage on the fluid to be joined together to form; Described middle level charging aperture is successively by the passage in the sealing shroud, the outer passage that forms between fluid and the left plug that divides, the middle level divides fluid and internal layer to divide the passage that forms between the fluid, the passage that leads on the conveyor screw of middle level that the passage on the connected body is joined together to form; The described outer charging aperture outer passage that leads on the fluid on the outer conveyor screw that divides of serving as reasons.
In technique scheme, described internal layer divides fluid to adopt copper material.
In technique scheme, described sealing shroud is the copper material sealing shroud, and sealing shroud is installed in the charging hole on internal layer charging aperture, middle level charging aperture, the outer charging aperture.
In technique scheme, described middle level is divided fluid, internal layer to divide between fluid and the connected body to adopt alignment pin to position.
In technique scheme, described middle level divides fluid, internal layer to divide fluid and connected body to divide the soket head cap screw between fluid and the connected body to fuse by skin, and forms shunting core.
In technique scheme, described shunting core is located by pin and screw with the internal layer conveyor screw and is connected.
The present invention has following advantage: the charging aperture of triple extrusion die head is set directly on the internal layer conveyor screw of mould, is positioned at same plane.Adopt the shunting core of three layers of cylinder stepped ramp type, three runners independently separately are set in shunting core, each runner all adopts central feeding, the mode of center shunting, and charging, the shunting of triple extrusion die head are finished in helical layer center in shunting core is installed in; Three layers of charging aperture are set on the internal layer conveyor screw, and allow three layers of charging aperture be positioned at same plane, directly communicate with shunting core, the charging shunting is finished in die body.Shunting core of the present invention design has reduced the die head height, has shortened flow channel length, has improved cooling effectiveness, and it is more convenient that film is led in operation, reduced polymer storage in the die head, reloads or to change color quicker; Each layer of shunting core all is central feeding, center shunting simultaneously, makes each layered material distributions and flow velocity more even, and bed thickness uniformity and film integral thickness degree improve.
Description of drawings
Fig. 1 is the structural representation of a kind of low center of the present invention triple extrusion die head.
The 1. outer fluids that divide among the figure, 2. fluid is divided in the middle level, and 3. internal layer divides fluid, 4. connected body, 5. right plug, 6. left plug, 7. internal layer conveyor screw, 8. sealing shroud, 9. outer conveyor screw, 10. middle level conveyor screw, 11. die head inflation inclined hole joint, 12. the internal layer charging aperture, 13. middle level charging apertures, 14. outer charging apertures.
The specific embodiment
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they are not construed as limiting the invention, only illustrate.Simultaneously by illustrating that advantage of the present invention will become clear more and understanding easily.
Consult accompanying drawing as can be known: a kind of low center of the present invention triple extrusion die head, its internal layer charging aperture 12, middle level charging aperture 13, outer charging aperture 14 are positioned on the same plane that centre-height is H, described internal layer charging aperture 12 is successively by the passage in the sealing shroud 8, the outer passage that divides on the fluid 1, the passage that forms between connected body 4 and the right plug 5, the passage that leads on the internal layer conveyor screw 7 that internal layer divides the passage on the fluid 3 to be joined together to form; Described middle level charging aperture 13 is successively by the passage in the sealing shroud 8, the outer passage that forms between fluid 1 and the left plug 6 that divides, the middle level divides fluid 2 and internal layer to divide the passage that forms between the fluid 3, the passage that leads on the middle level conveyor screw 10 that the passage on the connected body 4 is joined together to form; The described outer charging aperture 14 outer passage that leads on the fluid 1 on the outer conveyor screw 9 that divides of serving as reasons.
Internal layer divides fluid 3 to adopt copper material.
Sealing shroud 8 is the copper material sealing shroud, and sealing shroud 8 is installed in the charging hole on internal layer charging aperture 12, middle level charging aperture 13, the outer charging aperture 14.
The middle level is divided fluid 2, internal layer to divide between fluid 3 and the connected body 4 to adopt alignment pin to position.
The middle level divides fluid 2, internal layer to divide fluid 3 and connected body 4 to divide the soket head cap screw between fluid 1 and the connected body 4 to fuse by skin, and forms shunting core.
Shunting core is located by pin and screw with internal layer conveyor screw 7 and is connected.
A kind of low center of the present invention triple extrusion die head, when material enters skin branch fluid 1 by three layers of charging hole, material directly laterally enters the outer axle center of dividing fluid 1 by outer charging hole, and the charging that makes progress along the axle center, simultaneously material flow via the middle level divide on the fluid 2 skimmer cone with outer divide the branch fluid space that fluid 1 forms after, the mind-set circumferencial direction is evenly shunted from die head, through entering outer conveyor screw 9 behind the equally distributed outer shunting inclined hole on the internal layer conveyor screw 7; After material enters outer branch fluid 1 by the middle level charging hole, when the certain distance of the axle center of the outer branch of distance fluid 1, just make progress along axial line, avoid outer tap hole, lead to the middle level and divide the axle center of fluid 2, divide the charging that makes progress of the axial line of fluid 2 again along the middle level, divide the branch fluid space of the branch flow cone of fluid 3 bottoms and the central well formation that fluid 2 is divided in the middle level via internal layer when material flow after, the mind-set circumferencial direction is evenly shunted from die head, through entering middle level conveyor screw 10 behind the equally distributed middle level shunting inclined hole on association 4 and the internal layer conveyor screw 7; Internal layer charging hole and middle level are similar, material just makes progress when the certain distance of the axle center of the outer branch of distance fluid 1, after avoiding the shunting inclined hole in outer and middle level, lead to the axle center that internal layer divides fluid 3, and the axial line that divides fluid 3 along internal layer upwards, and shunt by the uniform shunting inclined hole that links to each other with the die head center on the internal layer conveyor screw 7, enter internal layer conveyor screw runner.
Internal layer divides fluid 3, employing alignment pin location between fluid 2 and the connected body 4 is divided in the middle level, and divide the soket head cap screw between fluid 1 and the connected body 4 to join together by skin, form shunting core, shunting core is located by pin and screw with internal layer conveyor screw 7 and is connected, and finishes charging and shunting in die head.Internal layer divides fluid 3 to adopt copper material, and the ring surface that the up/down steps face of outer branch fluid 1 contacts with internal layer conveyor screw 7 after grinding, can guarantee that the sealing of three step surfaces in shunting core upper, middle and lower is good.Each component part of shunting core is after turning machine-shaping, combine, be assembled into one with internal layer conveyor screw 7, the oblique tap hole of reprocessing each layer is to guarantee the joint precision of shunting inclined hole, take out shunting core at last again, process each layer charging hole on the shunting core one by one.In three layers of charging hole on the helical layer body 9, the charging sealing shroud of being made by copper material 8 is installed outside, when guaranteeing charging and the sealing of each several part.Die head is inflated by die head inflation inclined hole joint 11.
The present invention is applied in the plastics extrusion blow molding membrane equipment.
Claims (6)
1, a kind of low center triple extrusion die head, the internal layer charging aperture (12), middle level charging aperture (13), the outer charging aperture (14) that it is characterized in that it are positioned at centre-height on the same plane of (H), described internal layer charging aperture (12) is successively by the passage in the sealing shroud (8), the outer passage that divides on the fluid (1), the passage that forms between connected body (4) and the right plug (5), the passage that leads on the internal layer conveyor screw (7) that internal layer divides the passage on the fluid (3) to be joined together to form; Described middle level charging aperture (13) is successively by the passage in the sealing shroud (8), the outer passage that forms between fluid (1) and the left plug (6) that divides, the middle level divides fluid (2) and internal layer to divide the passage that forms between the fluid (3), the passage that leads on the middle level conveyor screw (10) that the passage on the connected body (4) is joined together to form; Described outer charging aperture (14) the outer passage that leads on the fluid (1) on the outer conveyor screw (9) that divides of serving as reasons.
2, a kind of low center according to claim 1 triple extrusion die head is characterized in that described internal layer divides fluid (3) to adopt copper material.
3, a kind of low center according to claim 1 triple extrusion die head, it is characterized in that described sealing shroud (8) is the copper material sealing shroud, sealing shroud (8) is installed in the charging hole on internal layer charging aperture (12), middle level charging aperture (13), the outer charging aperture (14).
4, a kind of low center according to claim 1 triple extrusion die head is characterized in that described middle level divides fluid (2), internal layer to divide and adopt alignment pin to position between fluid (3) and the connected body (4).
5, a kind of low center according to claim 4 triple extrusion die head, it is characterized in that described middle level divides fluid (2), internal layer to divide fluid (3) and connected body (4) to fuse by outer fluid (1) and the soket head cap screw between the connected body (4) of dividing, and the composition shunting core.
6, a kind of low center according to claim 5 triple extrusion die head is characterized in that described shunting core is located by pin and screw with internal layer conveyor screw (7) to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723216A CN101670657B (en) | 2009-09-29 | 2009-09-29 | Triple extrusion die head with low center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723216A CN101670657B (en) | 2009-09-29 | 2009-09-29 | Triple extrusion die head with low center |
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| Publication Number | Publication Date |
|---|---|
| CN101670657A true CN101670657A (en) | 2010-03-17 |
| CN101670657B CN101670657B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102723216A Expired - Fee Related CN101670657B (en) | 2009-09-29 | 2009-09-29 | Triple extrusion die head with low center |
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| CN (1) | CN101670657B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689432A (en) * | 2012-05-21 | 2012-09-26 | 瑞安市金达包装机械制造有限公司 | Multi-channel flow dividing rotating body for film blowing machine |
| CN105034569A (en) * | 2015-08-27 | 2015-11-11 | 安庆市兴丰工贸有限公司 | Improved film blowing, printing and rolling all-in-one machine |
| CN108454059A (en) * | 2018-04-04 | 2018-08-28 | 深圳市天博塑胶科技有限公司 | A kind of co-extrusion device preparing complex function diaphragm |
| CN111590860A (en) * | 2020-06-11 | 2020-08-28 | 常州海菲尔机械有限公司 | 7-layer co-extrusion PVDC film blowing mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364103A (en) * | 2017-08-25 | 2017-11-21 | 福建连众智惠实业有限公司 | One kind superposition sleeve coventry type die head coventry |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393707Y (en) * | 1999-11-09 | 2000-08-30 | 周守志 | Multi-layer squeezing die |
| CN201544439U (en) * | 2009-09-29 | 2010-08-11 | 武汉新中德塑料机械有限公司 | Low-center three-layer co-extrusion die |
-
2009
- 2009-09-29 CN CN2009102723216A patent/CN101670657B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689432A (en) * | 2012-05-21 | 2012-09-26 | 瑞安市金达包装机械制造有限公司 | Multi-channel flow dividing rotating body for film blowing machine |
| CN105034569A (en) * | 2015-08-27 | 2015-11-11 | 安庆市兴丰工贸有限公司 | Improved film blowing, printing and rolling all-in-one machine |
| CN108454059A (en) * | 2018-04-04 | 2018-08-28 | 深圳市天博塑胶科技有限公司 | A kind of co-extrusion device preparing complex function diaphragm |
| CN108454059B (en) * | 2018-04-04 | 2023-12-01 | 深圳市天博塑胶科技有限公司 | Co-extrusion device for preparing composite functional membrane |
| CN111590860A (en) * | 2020-06-11 | 2020-08-28 | 常州海菲尔机械有限公司 | 7-layer co-extrusion PVDC film blowing mold |
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| Publication number | Publication date |
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| CN101670657B (en) | 2013-06-19 |
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