CN204505665U - Edge Heating three-roller calendaring device - Google Patents
Edge Heating three-roller calendaring device Download PDFInfo
- Publication number
- CN204505665U CN204505665U CN201520184017.7U CN201520184017U CN204505665U CN 204505665 U CN204505665 U CN 204505665U CN 201520184017 U CN201520184017 U CN 201520184017U CN 204505665 U CN204505665 U CN 204505665U
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- China
- Prior art keywords
- extrusion die
- film
- pair stack
- roller
- lip
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to macromolecule membrane manufacture field, particularly relates to a kind of three-roller calendaring device film preparation device.A kind of Edge Heating three-roller calendaring device, comprises an extrusion die; Be symmetricly set on a pair stack below extrusion die, the gap between a pair stack and leave certain air gap between the lip of extrusion die; Be positioned at the setting roll in a pair stack downstream; The melt that extrusion die is extruded becomes film by being extruded by a pair stack after air gap, and described film is by setting roll cooling and shaping; The downstream of described setting roll is provided with cooling roller bed, corona unit, drafting system, trimming device and wrap-up in turn; Described extrusion die lip both sides are provided with heater.The utility model is provided with concurrent heating coil in the lip both sides of extrusion die, eliminates edge temperature drop when film is just extruded, effectively control necking effect by concurrent heating, film edge can not be thickened, without the need to carrying out trimming again, saving raw material, having reduced production cost.
Description
Technical field
The utility model relates to macromolecule membrane manufacture field, particularly relates to a kind of three-roller calendaring device film preparation device.
Background technology
Along with the development rapidly of liquid crystal display, digital camera and mobile phone market, make to increase sharply to the demand of the film of high technology content.The film being applied to electronics field is made primarily of triacetate fiber TAC, polyimides PI, polycarbonate, polypropylene PP or other high-tech plastic materials.For three-roller calendaring film, plastified the hot melt state homogeneous melt extruded and be extruded through die slit, be calibrated between a pair stack, flatten, be then cooled shaping at the 3rd roller and chill roll and cooling roller bed;
In existing three-roller calendaring technique, after melt flows out from die lips, both lateral sides limit can inwardly be shunk, and produces the phenomenon of so-called necking down, is all solved by trimming device in this phenomenon existing equipment, a part of raw material will be wasted like this, improve production cost.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Edge Heating three-roller calendaring device, find that the phenomenon of so-called necking down is because film edge temperature drop is very fast by research, create that the temperature difference causes, therefore heat patching device is adopted to carry out concurrent heating to edge, eliminate necking, without the need to carrying out trimming again, reduce production cost.
A kind of Edge Heating three-roller calendaring device, comprising:
One extrusion die;
Be symmetricly set on a pair stack below extrusion die, the gap between a pair stack and leave certain air gap between the lip of extrusion die;
Be positioned at the setting roll in a pair stack downstream;
The melt that extrusion die is extruded becomes film by being extruded by a pair stack after air gap, and described film is by setting roll cooling and shaping; The downstream of described setting roll is provided with cooling roller bed, corona unit, drafting system, trimming device and wrap-up in turn; Described extrusion die lip both sides are provided with heater.
Described heater is electrically-heated coil.
Described extrusion die is arranged on elevating mechanism.
The height of described air gap is 50 ~ 150mm.
Described chill roll is chrome faced steel rider.
The utility model Edge Heating three-roller calendaring device is provided with concurrent heating coil in the lip both sides of extrusion die, edge temperature drop when film is just extruded is eliminated by concurrent heating, effectively control necking effect, film edge can not be thickened, without the need to carrying out trimming again, save raw material, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Edge Heating three-roller calendaring device.
In figure: 1 extrusion die, 2 stacks, 3 setting rolls, 4 cooling roller beds, 5 corona units, 6 drafting systems, 7 heaters, 8 wrap-ups, 9 air gaps, 10 films.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model statement.
Embodiment 1
As shown in Figure 1, a kind of Edge Heating three-roller calendaring device, comprises extrusion die 1 and is arranged on the stack 2 immediately below extrusion die 1 for a pair; Gap between described a pair stack 2 and leave certain air gap 9 between the lip of extrusion die 1; Described a pair stack 2 downstream is provided with setting roll 3, and the melt that extrusion die 1 is extruded becomes film 10 by being extruded by a pair stack 2 after air gap 9, and described film 10 is by setting roll 3 cooling and shaping; The downstream of described setting roll 3 is provided with cooling roller bed 4, corona unit 5, drafting system 6 and wrap-up 8 in turn; The lip both sides of described extrusion die 1 are provided with heater 7, and in the present embodiment, described heater 7 is electrically-heated coil, by electrically-heated coil to film 10 both sides concurrent heating, eliminate edge temperature drop, avoid constriction thickening phenomenon.
In the utility model, the size of described air gap 9 is relevant with to the performance requirement of film, air gap is larger within the specific limits, resin melt surface oxidation degree is higher, the cohesion of resin is larger, and structural strength is better, but is not easy to obtain uniform veryyer thin film, as preferably, the height of described air gap 9 is 50 ~ 150mm; In order to realize the size adjustment of air gap 9, in the present embodiment, described extrusion die 1 is arranged on elevating mechanism.
Setting roll 3 effect is taken away fast by the heat of fused films to make film preliminarily forming, the surface appearance of chill roll almost determines the transparency of film article, need smooth surface, give the good transparency of joint product, glossiness, smoothness and resistance to adhesive, and there is good fissility, therefore in the utility model, select chrome faced steel rider as chill roll.
Claims (5)
1. an Edge Heating three-roller calendaring device, is characterized in that, comprising:
One extrusion die (1);
Be symmetricly set on a pair stack (2) of extrusion die (1) below, between the gap between a pair stack (2) and the lip of extrusion die (1), leave certain air gap (9);
Be positioned at the setting roll (3) in a pair stack (2) downstream;
The melt that extrusion die (1) is extruded is by becoming film (10) by a pair stack (2) extruding after air gap (9), and described film (10) is by setting roll (3) cooling and shaping; The downstream of described setting roll (3) is provided with cooling roller bed (4), corona unit (5), drafting system (6) and wrap-up (8) in turn; Described extrusion die (1) lip both sides are provided with heater (7).
2. Edge Heating three-roller calendaring device as claimed in claim 1, is characterized in that: described heater (7) is electrically-heated coil.
3. Edge Heating three-roller calendaring device as claimed in claim 2, is characterized in that: described extrusion die (1) is arranged on elevating mechanism.
4. Edge Heating three-roller calendaring device as claimed in claim 2, is characterized in that: the height of described air gap (9) is 50 ~ 150mm.
5. Edge Heating three-roller calendaring device as claimed in claim 2, is characterized in that: described chill roll (4) is chrome faced steel rider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184017.7U CN204505665U (en) | 2015-03-21 | 2015-03-21 | Edge Heating three-roller calendaring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184017.7U CN204505665U (en) | 2015-03-21 | 2015-03-21 | Edge Heating three-roller calendaring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204505665U true CN204505665U (en) | 2015-07-29 |
Family
ID=53703667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184017.7U Expired - Fee Related CN204505665U (en) | 2015-03-21 | 2015-03-21 | Edge Heating three-roller calendaring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204505665U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470435A (en) * | 2017-06-27 | 2017-12-15 | 无锡贺邦汽车配件有限公司 | A kind of first calender device for automobile board |
| CN107571591A (en) * | 2017-10-13 | 2018-01-12 | 青岛三益塑料机械有限公司 | Calender and floor production equipment |
| CN108621353A (en) * | 2017-03-24 | 2018-10-09 | 阿特斯阳光电力集团有限公司 | Photovoltaic encapsulation glued membrane preparation facilities |
-
2015
- 2015-03-21 CN CN201520184017.7U patent/CN204505665U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621353A (en) * | 2017-03-24 | 2018-10-09 | 阿特斯阳光电力集团有限公司 | Photovoltaic encapsulation glued membrane preparation facilities |
| CN107470435A (en) * | 2017-06-27 | 2017-12-15 | 无锡贺邦汽车配件有限公司 | A kind of first calender device for automobile board |
| CN107571591A (en) * | 2017-10-13 | 2018-01-12 | 青岛三益塑料机械有限公司 | Calender and floor production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |