CN205997318U - A kind of disc type co-extruding mould for packaging film production - Google Patents
A kind of disc type co-extruding mould for packaging film production Download PDFInfo
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- CN205997318U CN205997318U CN201620860854.1U CN201620860854U CN205997318U CN 205997318 U CN205997318 U CN 205997318U CN 201620860854 U CN201620860854 U CN 201620860854U CN 205997318 U CN205997318 U CN 205997318U
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- Prior art keywords
- mould
- video disc
- plug
- heating device
- packaging film
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
This utility model is related to a kind of disc type co-extruding mould for packaging film production, is provided with multiple layers of molds video disc, and every layer of mould video disc has eight helical flow paths, be evenly distributed, interlayer spacings are little, improve film equality；The spiral angle of helical flow path is 50 ~ 60 °, and helical flow path is short, is effectively reduced material degraded；Outer heating device along cylindrical circumferential direction subsection setup in the outside of mould video disc, and peripherally disposed multiple temperature element, realize monitoring temperature, make mold periphery temperature uniformly, film equality can be effectively improved；Whole mould is made up of the superposition of multiple modules, every kind of raw material is used for one or two module, connect before and after its point of charging aperture, connect with spiral flow channel again, finally meet at conical mould head surrounding, from the module extrusion of circularly cylindrical, after blown film, use microscopic examination, there is obvious multiple structure, it is possible to achieve the co-extrusion film uniformity of production reaches in ± 8%.
Description
Technical field
This utility model is related to multi-layer co-extruded technical field of membrane, specifically a kind of disc type for packaging film production
Co-extruding mould.
Background technology
The minimum error of PP TYPE production requirement thin film, traditional die head runner is difficult to ensure that the one-tenth of high barrier material
Quality.The requirement in market promotes us to research and develop low back pressure, the modified model spiral melt flow channel of the excellent optical performance of high yield
Module superposing die head.
Consult presently disclosed Chinese patent application 97118980.3, it is the average downward-blowing water-cooling being exclusively used in heat shrink films
Equipment, is one of a lot of packaging material kind, patent ZL200510049394.0 be on blow equipment and our downward-blowing water-coolings
Technique entirely different, the construction of equipment and the requirement of thin film are same, but core -- the die head of " Multi-layer co-extrusion film-blowing " equipment
It is single-screw runner, there is defect.Certainly it is previously calculated machine application less, software engineering is immature, does not abroad also have advanced 5
Shaft and NC Machining Test CNC machine, machine tool cannot processed complex spiral melt flow channel module superposing die head, more cannot ensure it smooth and
Smooth melt flow channel.
In addition European patent EP 086441A2 discloses a kind of co-extrusion die head for packaging bag production, and it includes multiple
Module, multiple modules is sequentially overlapped and fixes, the gap between the surface of modules, and spiral current is distributed with
Road, spiral flow channel upper part meets in the annular gap near die head lip, spiral flow channel lower part and each
Charging aperture UNICOM, below the spiral flow channel of modules, circumferentially surface distributed has multiple points of charging apertures, point charging aperture with
Combined feed Kou Shi UNICOM in this module, with time-division charging aperture directly and each spiral flow channel lower end UNICOM, so deposit
In unreasonable part, can improve further.
Utility model content
For above-mentioned existing co-extrusion die head for packaging bag production exist cannot ensure melt flow channel smoothness and
The problems such as smooth, gained face is of low quality, this utility model provides a kind of disc type co-extruding mould for packaging film production.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of disc type co-extruding mould for packaging film production, including firm banking, plug, mould video disc and heating
Device, described firm banking is set in plug bottom, and the mandrel outer on firm banking top is set with multiple layers of molds video disc, the top of plug
End is provided with core rod, is arranged with collar extension mould outside core rod；Between the inner side of multiple layers of molds video disc and plug and the outside of core rod, core rod
It is equipped with extrusion die clearance between outside and the inner side of collar extension mould；Described heater includes outer heating device and internal heater, interior plus
Hot device is arranged on the inside of core rod and plug, outer heating device along cylindrical circumferential direction subsection setup in the outside of mould video disc, every section
Outer heating device is equipped with temperature element, and described mould video disc is provided with runner, and uniform flow passage branches into 8 helical flow paths, each
The spiral angle of helical flow path is 50 ~ 60 °, and described mould video disc is additionally provided with multiple temperature element holes.
The spiral angle of described spiral flow channel is 60 °.
Described outer heating device divides 4 sections of outsides being uniformly arranged on mould video disc, and the middle of every section of outer heating device is provided with survey
Warm element, described mould video disc is uniformly provided with 4 temperature element holes.
Described mould video disc has 8 layers, and the effective depth of mould video disc superposition is 440mm.
Described outer heating device has multiple, is arranged on the outside of mould video disc from top to bottom.
Described internal heater has multiple, is arranged on the inside of core rod and plug from top to bottom.
The beneficial effects of the utility model：
The disc type co-extruding mould producing for packaging film that this utility model provides, is provided with multiple layers of molds video disc, every layer
Mould video disc has eight helical flow paths, is evenly distributed, interlayer spacings are little, improves film equality；The helical angle of helical flow path
Spend for 50 ~ 60 °, helical flow path is short, be effectively reduced material degraded；Outer heating device is along cylindrical circumferential direction subsection setup in mould dish
The outside of piece, and peripherally disposed multiple temperature element, realize monitoring temperature, make mold periphery temperature uniformly, can be effective
Improve film equality；Described mould video disc has 8 layers, and the effective depth of mould video disc superposition is 440mm, overall height dimension
Short, small volume, can reduce flowing time in mould for the material, reduce material degraded；Whole mould is by multiple module superposition groups
Become, every kind of raw material is used for one or two module, connect before and after its point of charging aperture, then connect with spiral flow channel, finally converge
In conical mould head surrounding, from the module extrusion of circularly cylindrical, use microscopic examination after blown film, have obvious multiple structure, can
Reached in ± 8% with the co-extrusion film uniformity realizing producing；This utility model structure is simple, small volume, and production capacity is big, uses
Very convenient, not only improve film quality, and reduce and pressed, be difficult material leakage.
Brief description
Fig. 1 this utility model structural representation；
Fig. 2 this utility model mould disc structure schematic diagram；
Reference：1st, charging aperture, 2, outer heating device, 3, internal heater, 4, plug, 5, mould video disc, 501, runner,
502nd, temperature element hole, 503, helical flow path, 504, fixing hole, 6, firm banking, 7, core rod, 8, collar extension mould, 9, discharging opening.
Specific embodiment
With reference to specific embodiment, this utility model is further elaborated.
As shown in the figure：A kind of disc type co-extruding mould for packaging film production, including firm banking 6, plug 4, mould
Video disc 5 and heater, described firm banking 6 is set in plug 4 bottom, is set with multilayer film outside the plug 4 on firm banking 6 top
Tool video disc 5, the top of plug 4 is provided with core rod 7, is arranged with collar extension mould 8 outside core rod 7；The inner side of multiple layers of molds video disc 5 and plug 4
And between the outside of core rod 7, be equipped with extrusion die clearance between the outside of core rod 7 and the inner side of collar extension mould 8；Described heater bag
Include outer heating device 2 and internal heater 3, internal heater 3 is arranged on core rod 7 and the inside of plug 4, and outer heating device 2 is along excircle side
To dividing 4 sections of outsides being arranged on mould video disc 5, the middle of every section of outer heating device 2 is equipped with temperature element, described mould video disc
It is uniformly provided with 4 temperature element holes 502, described mould video disc 5 is provided with runner 501, runner 501 is homogeneously branched to be 8 spiral shells on 5
Eddy flow road 503, the spiral angle of each helical flow path 503 is 60 °.
Described mould video disc 5 has 8 layers, and the effective depth of mould video disc 5 superposition is 440mm；Described core rod 7 and collar extension mould
A diameter of 380mm of the discharging opening 9 being formed between 8；Described outer heating device 2 has multiple, is arranged on mould video disc 5 from top to bottom
Outside；Described internal heater 3 has multiple, is arranged on core rod 7 and the inside of plug 4 from top to bottom.
This utility model includes multiple modules, multiple modules is sequentially overlapped and fixes, in the table of modules
There is gap between face, and eight spiral flow channels are distributed with, each layer converges to plug and forms crossover pressure guarantee each layer distribution
Uniformity.
The design bending of this utility model spiral flow channel is few, polishes high precision, adopts antiseized on the surface of high-temperature heat treatment
Surface treatment, all dead angles of runner are all excluded, very short to the distance of film outlet port, decrease than conventional flow field material delay when
Between, both ensure that the flowing time of temperature sensitive resin, also reduced plastic extrusion resistance, especially change color and raw material
When, can quickly retentate be removed, both can improve production efficiency, also can reduce the generation of waste material, this extremely short melt flow channel
It is additionally favorable for the plastic resin of handling ease degraded.
Every layer of heating point for measuring temperature is set to four, circumferencial direction is averagely arranged, multi-layer co-extruded downward-blowing water-cooling produces and is used for
, as barrier layer or high intensity layer, such unitary mould heating-up temperature is just higher, reaches 245 DEG C for the raw materials such as nylon, owns
High temperature will be tolerated through the plastics of mould, so the mould temperature homogeneity of a week is particularly important, for this reason, this utility model will
Monitoring temperature point increases as four, and heater is also classified into four sections of heating so that plastic melt obtains more in a balanced way when flowing
Temperature heating is it is ensured that the uniformity of circumferencial direction thin film.
Module superposing die head effective depth only has 440mm, from schematic diagram as can be seen that can produce 8 the height of 440mm
Layer coextruded film, lower 600mm than traditional die head, this makes easy to operate, also add the cooling space after blown film.
Every layer of module interlayer outlet gap uniformity for the plastics of extrusion reach best, will according to global design
Ask, monolayer yield substantially determines, the ratio of each layer and amount just to be determined by the quantity of module, every layer of raw material can be designed and use
One module is it is also possible to design two modules of wherein one layer use.So both ensure that film equality, in turn ensure that yield.
Claims (6)
1. a kind of disc type co-extruding mould for packaging film production, including firm banking（6）, plug（4）, mould video disc（5）
With heater it is characterised in that：Described firm banking（6）It is set in plug（4）Bottom, firm banking（6）The plug on top（4）
It is set with outward multiple layers of molds video disc（5）, plug（4）Top be provided with core rod（7）, core rod（7）It is arranged with outward collar extension mould（8）；Many
Layer mould video disc（5）Inner side and plug（4）And core rod（7）Outside between, core rod（7）Outside and collar extension mould（8）Interior
It is equipped with extrusion die clearance between side；Described heater includes outer heating device（2）And internal heater（3）, internal heater（3）Setting
In core rod（7）And plug（4）Inside, outer heating device（2）Along cylindrical circumferential direction subsection setup in mould video disc（5）Outside,
Every section of outer heating device（2）It is equipped with temperature element, described mould video disc（5）It is provided with runner（501）, runner（501）Uniformly divide
Propping up is 8 helical flow paths（503）, each helical flow path（503）Spiral angle be 50 ~ 60 °, described mould video disc（5）Above also
It is provided with multiple temperature element holes（502）.
2. be used for as claimed in claim 1 disc type co-extruding mould that packaging film produces it is characterised in that：Described spiral current
Road（503）Spiral angle be 60 °.
3. be used for as claimed in claim 1 disc type co-extruding mould that packaging film produces it is characterised in that：Described outer heating device
（2）Divide 4 sections and be uniformly arranged on mould video disc（5）Outside, every section of outer heating device（2）Middle be provided with temperature element, described
Mould video disc（5）On be uniformly provided with 4 temperature element holes（502）.
4. be used for as claimed in claim 1 disc type co-extruding mould that packaging film produces it is characterised in that：Described mould video disc
（5）There are 8 layers, and mould video disc（5）The effective depth of superposition is 440mm.
5. be used for as claimed in claim 1 disc type co-extruding mould that packaging film produces it is characterised in that：Described outer heating device
（2）Have multiple, be arranged on mould video disc from top to bottom（5）Outside.
6. be used for as claimed in claim 1 disc type co-extruding mould that packaging film produces it is characterised in that：Described internal heater
（3）Have multiple, be arranged on core rod from top to bottom（7）And plug（4）Inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620860854.1U CN205997318U (en) | 2016-08-10 | 2016-08-10 | A kind of disc type co-extruding mould for packaging film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620860854.1U CN205997318U (en) | 2016-08-10 | 2016-08-10 | A kind of disc type co-extruding mould for packaging film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205997318U true CN205997318U (en) | 2017-03-08 |
Family
ID=58199999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620860854.1U Expired - Fee Related CN205997318U (en) | 2016-08-10 | 2016-08-10 | A kind of disc type co-extruding mould for packaging film production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205997318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590854A (en) * | 2020-06-13 | 2020-08-28 | 常州海菲尔机械有限公司 | Full-biodegradable 7-layer separation mold |
| CN112873802A (en) * | 2020-12-30 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Die head of multilayer co-extrusion film blowing machine |
-
2016
- 2016-08-10 CN CN201620860854.1U patent/CN205997318U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590854A (en) * | 2020-06-13 | 2020-08-28 | 常州海菲尔机械有限公司 | Full-biodegradable 7-layer separation mold |
| CN112873802A (en) * | 2020-12-30 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Die head of multilayer co-extrusion film blowing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170929 Address after: The old city of Luoyang City, Henan province 471000 Chundu Road No. 14 green spring garden 15 No. 4-101 Patentee after: Luoyang, a new sea Mstar Technology Ltd Address before: Nine road Luoyang city 471000 Henan city of Luoyang province No. 33 Patentee before: Henan Light Industry Machinery Research Institute Co Ltd |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190517 Address after: 471000 No. 96 Airport West Road, Xigong District, Luoyang City, Henan Province Patentee after: Luoyang Yi Hai packing Co., Ltd Address before: 471000 Chundu Road, No. 14, Old District, Luoyang City, Henan Province, No. 4-101, 15 Ludu Chunyuan Building Patentee before: Luoyang, a new sea Mstar Technology Ltd |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20200810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |