CN206394000U - A kind of double-layer coextrusion Blown Film production equipment - Google Patents
A kind of double-layer coextrusion Blown Film production equipment Download PDFInfo
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- CN206394000U CN206394000U CN201621293185.0U CN201621293185U CN206394000U CN 206394000 U CN206394000 U CN 206394000U CN 201621293185 U CN201621293185 U CN 201621293185U CN 206394000 U CN206394000 U CN 206394000U
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Abstract
The utility model relates to double-layer coextrusion blowing, and in particular to a kind of double-layer coextrusion Blown Film production equipment.Double-layer coextrusion Blown Film equipment includes internal layer single screw extrusion machine, outer layer single screw extrusion machine, filter screen, automatic die, interior cold wind mouth, outer cold wind mouth, foam stabilizing frame, collapser, calibrator, traction compression deflector roll, sanction hymenotome and crimping roller.Film bubble is extruded into by two single screw extrusion machines and automatic die, then while hot with interior cold wind by its inflation, then it is stable through outer cold wind and foam stabilizing frame, pressed from both sides after into collapser flat, deflector roll traction is compressed by traction, and by being crimped after cutting out hymenotome sanction film into crimping roller, film article is finally made.A kind of thickness for double-layer coextrusion blown film that the utility model is obtained is uniform, and the thickness uniformity is within 8%, and double-layer coextrusion Blown Film method can greatly improve the quality and production efficiency of product, is adapted to industrialized production.
Description
Technical field
The utility model relates to double-layer coextrusion blowing, and in particular to a kind of double-layer coextrusion Blown Film production equipment.
Background technology
The production and processing method of current thin film mainly has extrusion blowing and extrusion the tape casting.Wherein extrusion the tape casting production
Film due to vertically and horizontally performance balance, the excellent feature of unstressed, heat sealability, optimum is used to seal.But extrude casting apparatus
Investment is big, limits its instream factor.And the equipment for extruding blowing is simple, small investment；Through inflation drawing-off mechanical strength compared with
It is high；Without rim charge, cost is low；Film is simple into cylindric preparation method；Processing and forming operation is easy, so in plastic sheeting, about 80%
It is blow moulding production.At present, extrusion blowing can be divided into individual layer extrusion and multilayer extrusion according to the quantitative classification of extruder,
Because the membrane structure performance that individual layer is extruded is single, the diversified demand in market can not be met.And multi-layer co-extruded film blowing method
Two or more plastics varieties are often used, or use the extruder of more than two, the parison of coextruded multilayer structure.Such as China specially
Profit application 201510476318.1 discloses a kind of production method for intersecting many barrier layer co-extrusion films.The co-extrusion film passes through extruder
Film bubble is blown out with die head, it is double-deck laminated structure that film bubble, which enters heated nip to press tubular film bubble, then is added by heating roller
The laminated structure of bilayer is structure as a whole by the bonding of tack material after heat, then intersect many resistances by cooling down, winding to be made
Interlayer co-extrusion film.Method complexity, the cost that the patent is cooled down by chill roll to sheet material are higher, and obtained co-extrusion
Film is mainly for the preparation of products such as flexible pipes, and method permissible accuracy is not high, it is impossible to completely used in the reality of solar energy backboard fluorine film
In production, and the report of this respect is considerably less.
The content of the invention
The utility model purpose is to provide a kind of double-layer coextrusion Blown Film production equipment, the life for above-mentioned weak point
The double-layer coextrusion film thickness for producing equipment preparation is relatively uniform, can meet production requirement and the quality requirement of film.
A kind of double-layer coextrusion Blown Film production equipment is to take following technical scheme to realize：
A kind of double-layer coextrusion Blown Film production equipment includes internal layer single screw extrusion machine, outer layer single screw extrusion machine, filter
Net, automatic die, interior cold wind mouth, outer cold wind mouth, foam stabilizing frame, collapser, calibrator, traction compress deflector roll, cut out hymenotome and curling
Roller.
Internal layer single screw extrusion machine and outer layer single screw extrusion machine extrusion are connected by pipeline with automatic die, internal layer
Single screw extrusion machine and outer layer single screw extrusion machine extrusion are respectively provided with filter screen.
The automatic die includes the insulation heat preservation layer and heating coil of die head body.Described insulation heat preservation layer is by filling out
Fill the insulating heat insulating material composition in automatic die gap, including the one or more in diatomite, mineral wool, perlite.Institute
The heater coil wraps stated are in the outer layer of automatic die, and after electrified regulation, heating coil delivers heat to automatic die, so that
Effectively the temperature of control automatic die, greatly improves efficiency.Automatic die extrusion inner circumferential is provided with interior cold wind mouthful, automatic
Die head extrusion outer circumferential side is provided with outer cold wind mouthful.
Foam stabilizing frame is arranged on automatic die top, and collapser is arranged on foam stabilizing frame top.Traction compresses deflector roll and is arranged on people
Letter stencil top, traction compresses deflector roll and is provided with two, and deflector roll is compressed by motor transmission traction, and traction compresses deflector roll rear portion and set
There are calibrator, deflector roll, cut out hymenotome and crimping roller.
The inside of described foam stabilizing frame is fixed with 5-100 root foam stabilizing deflector rolls, and film bubble can be effectively controlled by foam stabilizing deflector roll
Stability.
Described crimping roller is commercially available metal crimping roller.
Described calibrator is used to measure film thickness, and calibrator uses commercially available calibrator.
A kind of production method of double-layer coextrusion Blown Film is by the way of double-deck extrusion-blown modling, and main technical schemes are such as
Under：
A kind of production method of double-layer coextrusion Blown Film, its method is by two single screw extrusion machines and automatic die
Be extruded into film bubble, then while hot with interior cold wind by its inflation, then stable through outer cold wind and foam stabilizing frame, into collapser after press from both sides
It is flat, deflector roll traction is compressed by drawing, and enter crimping roller curling after film by cutting out hymenotome and cutting out, film article is finally made.
Its production method is comprised the following steps that：
（1）The plastic granule that granulation is obtained is dried at 90-150 DEG C, and it is 0.5-4h to control the baking material time；
（2）After plastic granule drying, the single screw extrusion machine of internal layer and outer layer is transported to respectively by conveying system
In, the temperature for controlling ectonexine single screw extrusion machine is 180 DEG C -240 DEG C, and rotating speed is 50-300rpm；
（3）Plastic granule is through melting, shearing, transmission, then respectively by confluxing after filter screen in automatic die, extruded shape film forming
Bubble；The thickness uniformity of the data that automatic die is obtained by calibrator voluntarily adjusting film, and the control of its thickness uniformity is 8%
Within；
（4）Interior cold wind is blown into film bubble by interior cold wind mouthful, makes its inflation, then outer cold wind, film are blown into by outer cold wind mouthful
Bubble is stable through outer cold wind and foam stabilizing frame, into collapser after press from both sides flat；
（5）Continue to compress deflector roll traction, flattening by traction after film bubble folder is flat, and sanction film is carried out by cutting out hymenotome, finally draw
Film article is made after entering crimping roller curling.
Described plastic granule selects Kynoar (PVDF) pellet, or other polymeric aggregates.
Further, pressure is 50-300MPa before internal layer Single screw extrusion head filter screen in step 3.
Further, pressure is 50-300MPa before outer layer single screw extrusion machine head filter screen in step 3.
Further, the frequency that is blown into of interior cold wind is 1-30Hz in step 4.
Further, the frequency that is blown into of step 4 China and foreign countries cold wind is 5-30Hz.
Further, film mode is cut out in step 5 for cutting or double any of is cutd open.
Compared with prior art, the beneficial effects of the utility model are：1）Can in the single screw extrusion machine of internal layer and outer layer
To select different resins, so as to prepare the various film of performance, the demand in market is met；2）Double-layer coextrusion blowing is obtained
Thicknesses of layers distribution is wider；3）The thickness of the data that automatic die can be obtained by calibrator voluntarily adjusting film is uniform
Degree, and the control of its thickness uniformity is within 8%；4）By the restriction of pressure value before internal outer filter, can effectively it control
The integrality of melt temperature and protection filter screen；5）It can adjust film bubble size by the frequency that is blown into of interior cold wind and control the thickness of film
Degree, allows it to reach defined numerical value；6）Outer cold wind is mainly used in controlling the stability of film bubble, reduces film edge slack phenomenon.
Compared with prior art, a kind of thickness for double-layer coextrusion blown film that the utility model is obtained is uniform, and thickness is uniform
Degree similarly meets in the production of solar energy backboard outer layer fluorine film and required within 8%, and the ectonexine of this outer film can be with
Different resins are selected as needed, the various film of performance is prepared, and double-layer coextrusion Blown Film method can be greatly improved
The quality and production efficiency of product, are adapted to industrialized production.
Brief description of the drawings
Below with reference to accompanying drawing, the utility model is described in further detail：
Fig. 1 is the utility model double-layer coextrusion Blown Film production equipment schematic diagram.
Fig. 2 is the structural representation of the foam stabilizing deflector roll of the utility model double-layer coextrusion Blown Film production equipment.
In figure：1st, internal layer single screw extrusion machine；2nd, outer layer single screw extrusion machine；3rd, filter screen；4th, automatic die；5th, film bubble；
6th, interior cold wind mouthful；7th, outer cold wind mouthful；8th, foam stabilizing frame；9th, collapser；10th, calibrator；11st, traction compresses deflector roll；12nd, hymenotome is cut out；
13rd, crimping roller；14th, insulation heat preservation layer；15th, heating coil；16th, foam stabilizing deflector roll；17th, deflector roll.
Embodiment
Referring to the drawings 1, a kind of double-layer coextrusion Blown Film production equipment includes internal layer single screw extrusion machine 1, outer layer list spiral shell
Bar extruder 2, filter screen 3, automatic die 4, interior cold wind mouth 6, outer cold wind mouthful 7, foam stabilizing frame 8, collapser 9, calibrator 10, traction pressure
Tight deflector roll 11, sanction hymenotome 12, crimping roller 13, insulation heat preservation layer 14, heating coil 15, foam stabilizing deflector roll 16.
Internal layer single screw extrusion machine 1 and the extrusion of outer layer single screw extrusion machine 2 are connected by pipeline with automatic die 4, interior
Layer single screw extrusion machine 1 and the extrusion of outer layer single screw extrusion machine 2 are respectively provided with filter screen 3, and the automatic die 4 includes die head sheet
The insulation heat preservation layer 14 and heating coil 15 of body.Described insulation heat preservation layer 14 is the insulation by being filled in the gap of automatic die 4
Insulation material is constituted, including the one or more in diatomite, mineral wool, perlite.Described heating coil 15 is wrapped in certainly
After the outer layer of dynamic model first 4, electrified regulation, heating coil 15 delivers heat to automatic die 4, so as to effectively control automatic die
4 temperature, greatly improves efficiency.The extrusion inner circumferential of automatic die 4 is provided with interior cold wind mouthful 6, outside the extrusion of automatic die 4
The week side of boss is provided with outer cold wind mouthful 7.
Foam stabilizing frame 8 is arranged on the top of automatic die 4, and collapser 9 is arranged on the top of foam stabilizing frame 8.Traction compresses deflector roll 11 and pacified
Mounted in the top of collapser 9, traction compresses deflector roll 11 and is provided with two, and deflector roll 11 is compressed by motor transmission traction, and traction is compressed
The rear portion of deflector roll 11 is provided with calibrator 10, deflector roll 11, leads sanction hymenotome 12 and crimping roller 13.
The inside of described foam stabilizing frame 8 is fixed with 5-100 root foam stabilizings deflector roll 16, can effectively be controlled by foam stabilizing deflector roll 16
The stability of film bubble.
Described crimping roller 13 is commercially available metal crimping roller.
Described calibrator 10 is used to measure film thickness, and calibrator 10 uses commercially available calibrator.
With reference to the accompanying drawings and examples, embodiment of the present utility model is further described.Following reality
Apply example to be only used for more clearly illustrating the technical solution of the utility model, and protection of the present utility model can not be limited with this
Scope.
Embodiment 1
A kind of production method of double-layer coextrusion Blown Film, its production method is comprised the following steps that：It will granulate what is obtained
Plastic granule is dried at 120 DEG C, and it is 2h to control the baking material time；Respectively will after plastic granule is dried, then by conveying system
It is transported in internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2, control internal layer single screw extrusion machine 1 and outer layer list
The temperature of screw extruder 2 is 180 DEG C, and rotating speed is 50rpm.Pellet is in internal layer single screw extrusion machine 1 and outer layer single screw rod
Through melting, shearing, transmission in extruder 2, confluxed after filter screen 3 by runner in automatic die 4, be extruded into film bubble 5, automatically
The thickness uniformity of the data that die head 4 can be obtained by calibrator 10 voluntarily adjusting film, and the control of its thickness uniformity is 8%
Within.In the process, it is outer layer single screw extrusion machine 2 within 50MPa to control pressure before the filter screen 3 of internal layer single screw extrusion machine 1
Pressure is that within 50MPa, outer layer molten mass can reach the effect for reducing fisheye by filter screen 3 before filter screen 3；Formed in film bubble 5
Initial stage interior cold wind is blown into film bubble 5 by interior cold wind mouthfuls 6, make its inflation, interior cold wind is blown into frequency for 1Hz, film
Steep after 5 inflations, while be blown into outer cold wind by outer cold wind mouthfuls 7, outer cold wind is blown into frequency for 5Hz, by being cooperateed with foam stabilizing frame 8
Effect, can effectively control the stability of film bubble 5, so as to obtain no edge slack phenomenon and the higher film product of the thickness uniformity.
After film bubble 5 is stable, press from both sides flat into collapser 9, continue to be flattened by traction compression deflector roll 11 after folder is flat, by deflector roll 17, and lead to
Cross sanction hymenotome 12 and carry out cutting sanction film, be finally introducing after crimping roller 13 is crimped and film article is made.Described plastic granule is selected
Kynoar (PVDF) pellet, or other polymeric aggregates.
The film thickness of the double-layer coextrusion blow molding that the present embodiment is prepared is uniform, the thickness uniformity within 6%,
By visual examination, the fisheye par of the membrane product is every 3000 meters 30 and surfacing, is tested by traditional performance,
It was found that the performance such as elongation at break and tensile strength has apparent raising, the production requirement and quality requirement of film can be met,
Different resins can be selected as needed simultaneously, the various film of performance is prepared, and double-layer coextrusion blow molding method can be with
Greatly improve the quality and production efficiency of product.
Embodiment 2
A kind of production method of double-layer coextrusion Blown Film, its production method is comprised the following steps that：It will granulate what is obtained
Plastic granule is dried at 90 DEG C, and it is 4h to control the baking material time；After plastic granule is dried, then by conveying system respectively by it
It is transported in internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2, the temperature for controlling internal layer single screw extrusion machine 1 is 200
DEG C, rotating speed is 200rpm, and the temperature of outer layer single screw extrusion machine 2 is 200 DEG C, and rotating speed is 200rpm.Pellet is in internal layer single screw rod
Through melting, shearing, transmission in extruder 1 and outer layer single screw extrusion machine 2, then by confluxing after filter screen 3 in automatic die 4, squeeze
Go out to be formed film bubble 5, the thickness uniformity of the data that automatic die 4 can be obtained by calibrator 10 voluntarily adjusting film, and it is thick
Thin uniformity control is within 5%.In the process, it is 200MPa, outer layer to control pressure before the filter screen 3 of internal layer single screw extrusion machine 1
Pressure is 200MPa before the filter screen 3 of single screw extrusion machine 2；The formation of film bubble 5 initial stage by interior cold wind mouthfuls 6 into film bubble 5
Interior cold wind is blown into, makes its inflation, interior cold wind is blown into frequency for 15Hz, after the inflation of film bubble 5, while being blown into by outer cold wind mouthful 7 outer
Cold wind, the frequency that is blown into of outer cold wind is 15Hz, by the synergy with foam stabilizing frame 8, can effectively control the stabilization of film bubble 5
Property, so as to improve the planarization of film surface, reduce edge slack phenomenon.Flat into the folder of collapser 9 after film bubble 5 is stable, folder is flat follow-up
It is continuous to be flattened by traction compression deflector roll 11, film is cut out by deflector roll 17, and by cutting out the progress cutting of hymenotome 12, crimping roller 13 is finally introducing
Film article is made after curling.
The present embodiment is by adjusting the temperature and rotating speed of internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2 not
Identical, the double-layer coextrusion inflation film outer layer prepared is thin compared with internal layer, while cold wind is blown into frequency in increase so that film
Requirement can be not only reached in performance, while film can be thinner, the demand of new markets is met, the thickness uniformity of film exists
Within 5%, the production requirement and quality requirement of film can be met, double-layer coextrusion blow molding method can greatly improve product
Quality and production efficiency.Described plastic granule selects Kynoar (PVDF) pellet, or other polymeric aggregates.
Embodiment 3
A kind of production method of double-layer coextrusion Blown Film, its production method is comprised the following steps that：It will granulate what is obtained
Plastic granule is dried at 150 DEG C, and it is 0.5h to control the baking material time；Distinguish after plastic granule is dried, then by conveying system
It is transported in internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2, control internal layer single screw extrusion machine 1 and outer layer
The temperature of single screw extrusion machine 2 is 240 DEG C, and rotating speed is 300rpm.Pellet is in internal layer single screw extrusion machine 1 and outer layer list spiral shell
Through melting, shearing, transmission in bar extruder 2, confluxed after filter screen 3 by runner in automatic die 4, be extruded into film bubble 5, from
The thickness uniformity of the data that dynamic model first 4 can be obtained by calibrator 10 voluntarily adjusting film, and the control of its thickness uniformity exists
Within 8%.In the process, it is outer layer Single screw extrusion within 300MPa to control pressure before the filter screen 3 of internal layer single screw extrusion machine 1
Pressure is that within 300MPa, outer layer molten mass can reach the effect for reducing fisheye by filter screen 3 before the filter screen 3 of machine 2；In film bubble 5
The initial stage of formation is blown into interior cold wind into film bubble 5 by interior cold wind mouthful 6, makes its inflation, the frequency that is blown into of interior cold wind is
After 30Hz, the inflation of film bubble 5, while be blown into outer cold wind by outer cold wind mouthfuls 7, outer cold wind is blown into frequency for 30Hz, by with foam stabilizing
The synergy of frame 8, can effectively control the stability of film bubble 5, so as to obtain no edge slack phenomenon and the thickness uniformity is higher
Film product.After film bubble 5 is stable, press from both sides flat into collapser 9, continue to be flattened by traction compression deflector roll 11 after folder is flat, by leading
Roller 17, and cutting sanction film is carried out by cutting out hymenotome 12, it is finally introducing after crimping roller 13 is crimped and film article is made.Described plastics
Pellet selects Kynoar (PVDF) pellet, or other polymeric aggregates.
The film thickness of the double-layer coextrusion blow molding that the present embodiment is prepared is uniform, the thickness uniformity within 6%,
By visual examination, the fisheye par of the membrane product is every 3000 meters 30 and surfacing, is tested by traditional performance,
It was found that the performance such as elongation at break and tensile strength has apparent raising, the production requirement and quality requirement of film can be met,
Different resins can be selected as needed simultaneously, the various film of performance is prepared, and double-layer coextrusion blow molding method can be with
Greatly improve the quality and production efficiency of product.
Claims (4)
1. a kind of double-layer coextrusion Blown Film production equipment, it is characterised in that：Including internal layer single screw extrusion machine, outer layer single screw rod
Extruder, filter screen, automatic die, interior cold wind mouth, outer cold wind mouth, foam stabilizing frame, collapser, calibrator, traction compress deflector roll, cut out film
Knife and crimping roller；
Internal layer single screw extrusion machine and outer layer single screw extrusion machine extrusion are connected by pipeline with automatic die, internal layer single screw rod
Extruder and outer layer single screw extrusion machine extrusion are respectively provided with filter screen；
The automatic die includes the insulation heat preservation layer and heating coil of die head body；
Automatic die extrusion inner circumferential is provided with interior cold wind mouthful, automatic die extrusion outer circumferential side is provided with outer cold wind mouthful；
Foam stabilizing frame is arranged on automatic die top, and collapser is arranged on foam stabilizing frame top；Traction compresses deflector roll and is arranged on collapser
Top, traction compresses deflector roll and is provided with two, and deflector roll is compressed by motor transmission traction, and traction compresses deflector roll rear portion and is provided with survey
Thick instrument, deflector roll, sanction hymenotome and crimping roller.
2. a kind of double-layer coextrusion Blown Film production equipment according to claim 1, it is characterised in that：Described insulation is protected
Warm layer is made up of the insulating heat insulating material for being filled in automatic die gap.
3. a kind of double-layer coextrusion Blown Film production equipment according to claim 1, it is characterised in that：Described heater wire
Circle is wrapped in after the outer layer of automatic die, electrified regulation, and heating coil delivers heat to automatic die.
4. a kind of double-layer coextrusion Blown Film production equipment according to claim 1, it is characterised in that：Described foam stabilizing frame
Inside be fixed with 5-100 root foam stabilizing deflector rolls, the stability of film bubble is effectively controlled by foam stabilizing deflector roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293185.0U CN206394000U (en) | 2016-11-29 | 2016-11-29 | A kind of double-layer coextrusion Blown Film production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293185.0U CN206394000U (en) | 2016-11-29 | 2016-11-29 | A kind of double-layer coextrusion Blown Film production equipment |
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| CN206394000U true CN206394000U (en) | 2017-08-11 |
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| CN201621293185.0U Active CN206394000U (en) | 2016-11-29 | 2016-11-29 | A kind of double-layer coextrusion Blown Film production equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626323A (en) * | 2016-11-29 | 2017-05-10 | 中天科技精密材料有限公司 | Double-layer coextrusion film blowing production method and equipment |
| CN107839208A (en) * | 2017-10-24 | 2018-03-27 | 北京化工大学 | Multi- scenarios method film blow blowing forming method and equipment based on electrostatic tug-of-war effect |
| CN111673999A (en) * | 2020-05-08 | 2020-09-18 | 中天科技精密材料有限公司 | Preparation method and preparation system of transparent film |
-
2016
- 2016-11-29 CN CN201621293185.0U patent/CN206394000U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626323A (en) * | 2016-11-29 | 2017-05-10 | 中天科技精密材料有限公司 | Double-layer coextrusion film blowing production method and equipment |
| CN107839208A (en) * | 2017-10-24 | 2018-03-27 | 北京化工大学 | Multi- scenarios method film blow blowing forming method and equipment based on electrostatic tug-of-war effect |
| CN107839208B (en) * | 2017-10-24 | 2023-11-21 | 北京化工大学 | Multi-field coupling film blow molding method and equipment based on electrostatic tug-of-war effect |
| CN111673999A (en) * | 2020-05-08 | 2020-09-18 | 中天科技精密材料有限公司 | Preparation method and preparation system of transparent film |
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Effective date of registration: 20230614 Address after: No.99 Tongren Road, Nantong Development Zone, Jiangsu Province, 226015 Patentee after: ZHONGTIAN PHOTOVOLTAIC MATERIALS Co.,Ltd. Address before: 226009 No. 3 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu Patentee before: ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS Co.,Ltd. Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. |