CN106626323A - Double-layer coextrusion film blowing production method and equipment - Google Patents
Double-layer coextrusion film blowing production method and equipment Download PDFInfo
- Publication number
- CN106626323A CN106626323A CN201611073635.XA CN201611073635A CN106626323A CN 106626323 A CN106626323 A CN 106626323A CN 201611073635 A CN201611073635 A CN 201611073635A CN 106626323 A CN106626323 A CN 106626323A
- Authority
- CN
- China
- Prior art keywords
- film
- double
- layer
- cold wind
- single screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to double-layer coextrusion blow molding, in particular to a double-layer coextrusion film blowing production method and equipment. The production method includes the steps that two single screw extruders and automatic die heads are used for extrusion for forming film bubbles; inner cold air is used for blow expansion of the film bubbles while the film bubbles are hot, the film bubbles are then stabilized through external cold air and a bubble stabilization frame, enter a collapsing plate to be clamped flat, are pulled through a traction and compaction guide roller, and are subject to film cutting through a film cutter so as to enter a curving roller for curving; and a film product is prepared finally. The double-layer coextrusion film blowing equipment comprises the inner-layer single screw extruder, the outer-layer single screw extruder, a filter net, the automatic die heads, an inner cold air port, an outer cold air port, the bubble stabilization frame, the collapsing plate, a thickness measurement instrument, the traction and compaction guide roller, the film cutter and the curving roller. A double-layer coextrusion blow molding film obtained through the method and equipment is even in thickness, and the thickness uniformity is within 8%; and by means of the double-layer coextrusion film blowing method, the quality and the production efficiency of the product can be greatly improved, and the double-layer coextrusion film blowing production method is suitable for industrial production.
Description
Technical field
The present invention relates to double-layer coextrusion blowing, and in particular to a kind of production method of double-layer coextrusion Blown Film and its
Equipment.
Background technology
The production and processing method of current thin film mainly has extrusion blowing and extrusion the tape casting.Wherein extrude 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 extrude the equipment of blowing simply, small investment；Jing inflation drawing-off mechanical strengths compared with
It is high；Without rim charge, low cost；Film is simple into cylindric preparation method；Processing and forming processing ease, so in plastic sheeting, about 80%
It is blow moulding production.At present, extruding blowing can be divided into individual layer extrusion and multilayer extrusion according to the quantitative classification of extruder,
Because the membrane structure performance of individual layer extrusion 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 adopted, or using 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 enters heated nip by the pressing of tubular film bubble, then is added by heating roller
The laminated structure that bilayer is made after heat is structure as a whole by the bonding of tack material, then intersects hinder by cooling down, winding to be obtained more
Interlayer co-extrusion film.The patent is complicated, relatively costly by the method that chill roll is cooled down to sheet material, and the co-extrusion for obtaining
, mainly for the preparation of products such as flexible pipes, method permissible accuracy is not high, it is impossible to completely used in the reality of solar energy backboard fluorine film for film
In production, and the report of this respect is considerably less.
The content of the invention
The present invention seeks to be directed to above-mentioned weak point and provide a kind of production method of double-layer coextrusion Blown Film and its set
Standby, double-layer coextrusion film thickness prepared by the production equipment is relatively uniform, can meet production requirement and the quality requirement of film.
A kind of production method and its equipment of double-layer coextrusion Blown Film is to take technical scheme below to realize：
A kind of double-layer coextrusion Blown Film production equipment include internal layer single screw extrusion machine, outer layer single screw extrusion machine, filter screen, from
Dynamic model head, interior cold wind mouth, outer cold wind mouth, foam stabilizing frame, collapser, calibrator, traction compress deflector roll, cut out hymenotome 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 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 in automatic die gap to constitute, including one or more in diatomite, mineral wool, perlite.Institute
In the outer layer of automatic die, after electrified regulation, heating coil delivers heat to automatic die to the heater coil wraps stated, so as to
The temperature of effective control automatic die, greatly improves efficiency.Automatic die extrusion inner circumferential is provided with interior cold wind mouth, automatic
Die head extrusion outer circumferential side is provided with outer cold wind mouth.
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 by motor transmission traction deflector roll is compressed, and traction compresses deflector roll rear portion and arranges
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, can be with effective control film bubble 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 adopts commercially available calibrator.
By the way of double-deck extrusion-blown modling, main technical schemes are such as a kind of production method of double-layer coextrusion Blown Film
Under：
A kind of production method of double-layer coextrusion Blown Film, its method is extruded by two single screw extrusion machines and automatic die
Film bubble is formed, it is then with interior cold wind that cold wind outside its inflation, then Jing and foam stabilizing frame is stable while hot, press from both sides flat into after collapser, by
Traction compresses deflector roll traction, and is cut out after film into crimping roller curling by cutting out hymenotome, and film article is finally obtained.
Its production method is comprised the following steps that：
（1）The plastic granule that granulation is obtained is dried at 90-150 DEG C, the baking material time is controlled for 0.5-4h；
（2）After plastic granule drying, it is transported to respectively in the single screw extrusion machine of internal layer and outer layer by conveying system, is controlled
The temperature of ectonexine single screw extrusion machine processed is 180 DEG C -240 DEG C, and rotating speed is 50-300rpm；
（3）Plastic granule Jing meltings, shearing, transmission, then confluxed in automatic die after filter screen respectively, it is extruded into film bubble；
The thickness uniformity of the data that automatic die is obtained by calibrator voluntarily adjusting film, and its thickness uniformity control 8% with
It is interior；
（4）Interior cold wind is blown into into film bubble by interior cold wind mouth so as to inflation, then outer cold wind, film bubble Jing are blown into by outer cold wind mouth
Outer cold wind and foam stabilizing frame are stable, press from both sides flat into after collapser；
（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, be finally introducing volume
Film article is obtained after curved roll 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, in step 5 cut out film mode be cutting or it is double cut open in any one.
Compared with prior art, beneficial effects of the present invention are：1）Can select in the single screw extrusion machine of internal layer and outer layer
Different resins are selected, the film various so as to prepare performance meets the demand in market；2）The film layer that double-layer coextrusion blowing is obtained
Thickness distribution scope is wider；3）The thickness uniformity of the data that automatic die can be obtained by calibrator voluntarily adjusting film, and
Its thickness uniformity is controlled within 8%；4）By the restriction of pressure value before internal outer filter, can be with effective control melt
The integrality of temperature and protection filter screen；5）Film bubble size can be adjusted controlling the thickness of film by the frequency that is blown into of interior cold wind,
It is allowed to reach the numerical value of regulation；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 of double-layer coextrusion blown film that the present invention is obtained is uniform, and the thickness uniformity exists
Within 8%, similarly meet in the production of solar energy backboard outer layer fluorine film and require, the ectonexine of this outer film can basis
Need to select different resins, prepare the various film of performance, double-layer coextrusion Blown Film method can greatly improve product
Quality and production efficiency, be adapted to industrialized production.
Description of the drawings
Below with reference to accompanying drawing, the invention will be further described：
Fig. 1 is double-layer coextrusion Blown Film production equipment schematic diagram of the present invention.
Fig. 2 is the structural representation of the foam stabilizing deflector roll of double-layer coextrusion Blown Film production equipment of the present invention.
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 mouth；7th, outer cold wind mouth；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, 17, deflector roll.
Specific 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 mouth 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 by the insulation for being filled in the gap of automatic die 4
Insulation material is constituted, including one or more in diatomite, mineral wool, perlite.Described heating coil 15 is wrapped in certainly
The outer layer of dynamic model head 4, after electrified regulation, heating coil 15 delivers heat to automatic die 4, so as to effective control automatic die
4 temperature, greatly improves efficiency.The extrusion inner circumferential of automatic die 4 is provided with interior cold wind mouth 6, outside the extrusion of automatic die 4
The week side of boss is provided with outer cold wind mouth 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 pacifies
The top of collapser 9 is mounted in, traction compresses deflector roll 11 and is provided with two, deflector roll 11 is compressed by motor transmission traction, traction is compressed
The rear portion of deflector roll 11 is provided with calibrator 10, deflector roll 17, cuts out 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 be with effective control 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 adopts commercially available calibrator.
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is further described.Following examples
It is only used for more clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
Embodiment 1
A kind of production method of double-layer coextrusion Blown Film, its production method is comprised the following steps that：The plastics that granulation is obtained
Pellet is dried at 120 DEG C, controls the baking material time for 2h；It is after plastic granule drying then respectively that its is defeated by conveying system
In being sent to internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2, internal layer single screw extrusion machine 1 and outer layer single screw rod are controlled
The temperature of 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 extrusion
Jing meltings, shearing, transmission, are confluxed in automatic die 4 Jing after filter screen 3 by runner in machine 2, are extruded into film bubble 5, automatic die
The 4 thickness uniformitys that can pass through the data that obtain of calibrator 10 voluntarily adjusting film, and its thickness uniformity controlled within 8%.
In the process, it is the filter screen 3 of 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
Front pressure is that within 50MPa, outer layer molten mass can reach the effect for reducing fisheye by filter screen 3；In the first of the formation of film bubble 5
Stage phase is blown into interior cold wind by interior cold wind mouth 6 into film bubble 5 so as to inflation, and the frequency that is blown into of interior cold wind is 1Hz, and film bubble 5 is blown
After swollen, while being blown into outer cold wind by outer cold wind mouth 7, the frequency that is blown into of outer cold wind is 5Hz, by the synergy with foam stabilizing frame 8,
Can be with the stability of effective control film bubble 5, so as to obtain without edge slack phenomenon and the higher film product of the thickness uniformity.Treat film bubble
After 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, through deflector roll 17, and by cutting out film
Knife 12 carries out cutting and cuts out film, is finally introducing after crimping roller 13 is crimped and film article is obtained.Described plastic granule is from poly- inclined fluorine
Ethene (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 per 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,
Simultaneously different resins can be as needed selected, prepare the various film of performance, 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：The plastics that granulation is obtained
Pellet is dried at 90 DEG C, controls the baking material time for 4h；After plastic granule drying, then it is conveyed respectively by conveying system
To 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 extrusion
Jing meltings, shearing, transmission in machine 1 and outer layer single screw extrusion machine 2, then by confluxing in automatic die 4, extruded shape after filter screen 3
Into film bubble 5, automatic die 4 can pass through the thickness uniformity of the data that obtain of calibrator 10 voluntarily adjusting film, and its thickness is equal
Evenness is controlled within 5%.In the process, it is 200MPa to control before the filter screen 3 of internal layer single screw extrusion machine 1 pressure, outer layer list spiral shell
Pressure is 200MPa before the filter screen 3 of bar extruder 2；The initial stage formed in film bubble 5 is blown into by interior cold wind mouth 6 into film bubble 5
Interior cold wind so as to inflation, the frequency that is blown into of interior cold wind is 15Hz, after the inflation of film bubble 5, while outer cold wind is blown into by outer cold wind mouth 7,
Outer cold wind is blown into frequency for 15Hz, by the synergy with foam stabilizing frame 8, can with the stability of effective control film bubble 5, so as to
The planarization of face is improved, edge slack phenomenon is reduced.It is flat into the folder of collapser 9 after film bubble 5 is stable, continue after folder is flat by leading
The tight deflector roll 11 of impulse is flattened, and through deflector roll 17, and cutting sanction film is carried out by cutting out hymenotome 12, after being finally introducing the curling of crimping roller 13
Prepared film article.
The present embodiment by the temperature and rotating speed that adjust 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 for preparing is thin compared with internal layer, while cold wind is blown into frequency in increase so that film
Requirement not only can be 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：The plastics that granulation is obtained
Pellet is dried at 150 DEG C, controls the baking material time for 0.5h；After plastic granule drying, then by conveying system respectively by it
In being transported to internal layer single screw extrusion machine 1 and outer layer single screw extrusion machine 2, internal layer single screw extrusion machine 1 and outer layer list spiral shell are controlled
The temperature of bar extruder 2 is 240 DEG C, and rotating speed is 300rpm.Pellet is squeezed in internal layer single screw extrusion machine 1 and outer layer single screw rod
Go out Jing meltings, shearing, transmission in machine 2, confluxed in automatic die 4 by runner Jing after filter screen 3, be extruded into film bubble 5, automatic mold
The 4 thickness uniformitys that can pass through data that calibrator 10 obtains voluntarily adjusting film, and its thickness uniformity control 8% with
It is interior.In the process, it is outer layer single screw extrusion machine 2 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 filter screen 3；In the shape of film bubble 5
Into initial stage interior cold wind is blown into into film bubble 5 by interior cold wind mouth 6 so as to inflation, interior cold wind is blown into frequency for 30Hz,
After the inflation of film bubble 5, while be blown into outer cold wind by outer cold wind mouth 7, outer cold wind is blown into frequency for 30Hz, by with foam stabilizing frame 8
Synergy, can be with the stability of effective control film bubble 5, so as to obtain without edge slack phenomenon and the higher film of the thickness uniformity is produced
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, through deflector roll 17, and
Cutting sanction film is carried out by cutting out hymenotome 12, is finally introducing after crimping roller 13 is crimped and film article is obtained.Described plastic granule choosing
With 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 per 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,
Simultaneously different resins can be as needed selected, prepare the various film of performance, double-layer coextrusion blow molding method can be with
Greatly improve the quality and production efficiency of product.
Claims (10)
1. a kind of production method of double-layer coextrusion Blown Film, it is characterised in that：Described production method is by two single spiral shells
Bar extruder and automatic die are extruded into film bubble, then with interior cold wind that cold wind and foam stabilizing frame outside its inflation, then Jing is steady while hot
Fixed, folder is put down into after collapser, and by drawing deflector roll traction is compressed, and is crimped into crimping roller after sanction hymenotome sanction film, finally
Prepared film article.
2. the production method of a kind of double-layer coextrusion Blown Film according to claim 1, it is characterised in that：Described production
Method is comprised the following steps that：
（1）The plastic granule that granulation is obtained is dried at 90-150 DEG C, the baking material time is controlled for 0.5-4h；
（2）After plastic granule drying, during the single screw extrusion machine of internal layer and outer layer is transported to respectively, ectonexine list spiral shell is controlled
The temperature of bar extruder is 180 DEG C -240 DEG C, and rotating speed is 50-300rpm；
（3）Plastic granule Jing meltings, shearing, transmission, then confluxed in automatic die after filter screen respectively, it is extruded into film bubble；
The thickness uniformity of the data that automatic die is obtained by calibrator voluntarily adjusting film, and its thickness uniformity control 8% with
It is interior；
（4）Interior cold wind is blown into into film bubble by interior cold wind mouth so as to inflation, then outer cold wind, film bubble Jing are blown into by outer cold wind mouth
Outer cold wind and foam stabilizing frame are stable, press from both sides flat into after collapser；
（5）Continue to compress deflector roll flattening by traction after film bubble folder is flat, and sanction film is carried out by cutting out hymenotome, be finally introducing crimping roller volume
Film article is obtained after song.
3. the production method of a kind of double-layer coextrusion Blown Film according to claim 2, it is characterised in that：It is interior in step 3
Pressure is 50-300MPa before layer Single screw extrusion head filter screen.
4. the production method of a kind of double-layer coextrusion Blown Film according to claim 2, it is characterised in that：Step 3 China and foreign countries
Pressure is 50-300MPa before layer Single screw extrusion head filter screen.
5. the production method of a kind of double-layer coextrusion Blown Film according to claim 2, it is characterised in that：It is interior in step 4
The frequency that is blown into of cold wind is 1-30Hz.
6. the production method of a kind of double-layer coextrusion Blown Film according to claim 2, it is characterised in that：Step 4 China and foreign countries
The frequency that is blown into of cold wind is 5-30Hz.
7. the production method of a kind of double-layer coextrusion Blown Film according to claim 2, it is characterised in that：Cut out in step 5
Film mode be cutting or it is double cut open in any one.
8. 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 list spiral shell
Bar 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 mouth, automatic die extrusion outer circumferential side is provided with outer cold wind mouth;
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 by motor transmission traction deflector roll is compressed, and traction compresses deflector roll rear portion and is provided with survey
Thick instrument, deflector roll, sanction hymenotome and crimping roller.
9. a kind of double-layer coextrusion Blown Film production equipment according to claim 8, 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, including the one kind in diatomite, mineral wool, perlite
Or it is various；In the outer layer of automatic die, after electrified regulation, heating coil is delivered heat to automatically described heater coil wraps
Die head.
10. a kind of double-layer coextrusion Blown Film production equipment according to claim 8, it is characterised in that：Described foam stabilizing
The inside of frame is fixed with 5-100 root foam stabilizing deflector rolls, by the stability of foam stabilizing deflector roll effective control film bubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073635.XA CN106626323A (en) | 2016-11-29 | 2016-11-29 | Double-layer coextrusion film blowing production method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073635.XA CN106626323A (en) | 2016-11-29 | 2016-11-29 | Double-layer coextrusion film blowing production method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106626323A true CN106626323A (en) | 2017-05-10 |
Family
ID=58814101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611073635.XA Pending CN106626323A (en) | 2016-11-29 | 2016-11-29 | Double-layer coextrusion film blowing production method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106626323A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109203427A (en) * | 2018-08-29 | 2019-01-15 | 蚌埠市远红塑胶制品有限公司 | A kind of plastic film steadily discharges blowing device |
| CN109280196A (en) * | 2017-07-21 | 2019-01-29 | 南京普能新材料科技有限公司 | Perfluorinated sulfonic acid-carboxylic acid composite membrane of graphene doping and its double-layer coextrusion blow molding and stretch forming method |
| CN110421812A (en) * | 2019-09-11 | 2019-11-08 | 郑州新生印务有限公司 | A kind of production equipment thickening PVDC film |
| CN111113854A (en) * | 2019-12-13 | 2020-05-08 | 贵州科泰天兴农业科技有限公司 | Mulching film production device and technology thereof |
| CN112009025A (en) * | 2020-09-17 | 2020-12-01 | 天门市成畅塑业有限公司 | Two-in-one PE packaging bag and processing device thereof |
| CN112078206A (en) * | 2020-08-27 | 2020-12-15 | 江苏欣润塑胶有限公司 | Transparent high-cold-resistance high-flame-retardant film, processing production line and processing method |
| CN113400610A (en) * | 2021-05-31 | 2021-09-17 | 天津新兴东方临近空间航天科技有限公司 | Multilayer co-extrusion film process for fluorine-containing resin high-performance helium barrier film |
| CN113400611A (en) * | 2021-06-18 | 2021-09-17 | 宁波长阳科技股份有限公司 | Film blow molding device and liquid crystal polymer film prepared by same |
| CN117183302A (en) * | 2023-09-10 | 2023-12-08 | 苏州鸿科新材料科技有限公司 | Film blowing machine for producing release film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201525121U (en) * | 2009-05-29 | 2010-07-14 | 河北方盛塑业有限公司 | Blow molding equipment for producing polyvinyl alcohol film |
| CN104210087A (en) * | 2014-09-11 | 2014-12-17 | 南京沪江复合材料有限公司 | Extrusion molding die head heat preservation energy-saving ring of film blowing machine |
| CN205705208U (en) * | 2016-05-18 | 2016-11-23 | 珠海市鼎胜胶粘制品有限公司 | The blown film mechanism of explosion-proof energy saving composite courier bag |
| CN206394000U (en) * | 2016-11-29 | 2017-08-11 | 中天科技精密材料有限公司 | A kind of double-layer coextrusion Blown Film production equipment |
-
2016
- 2016-11-29 CN CN201611073635.XA patent/CN106626323A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201525121U (en) * | 2009-05-29 | 2010-07-14 | 河北方盛塑业有限公司 | Blow molding equipment for producing polyvinyl alcohol film |
| CN104210087A (en) * | 2014-09-11 | 2014-12-17 | 南京沪江复合材料有限公司 | Extrusion molding die head heat preservation energy-saving ring of film blowing machine |
| CN205705208U (en) * | 2016-05-18 | 2016-11-23 | 珠海市鼎胜胶粘制品有限公司 | The blown film mechanism of explosion-proof energy saving composite courier bag |
| CN206394000U (en) * | 2016-11-29 | 2017-08-11 | 中天科技精密材料有限公司 | A kind of double-layer coextrusion Blown Film production equipment |
Non-Patent Citations (1)
| Title |
|---|
| 吴清鹤等: "《塑料挤出成型》", 31 October 2004, 化学工业出版社 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280196B (en) * | 2017-07-21 | 2020-12-18 | 苏州科润新材料股份有限公司 | Graphene-doped perfluorosulfonic acid-carboxylic acid composite membrane and double-layer co-extrusion blow molding and stretch forming method thereof |
| CN109280196A (en) * | 2017-07-21 | 2019-01-29 | 南京普能新材料科技有限公司 | Perfluorinated sulfonic acid-carboxylic acid composite membrane of graphene doping and its double-layer coextrusion blow molding and stretch forming method |
| 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 |
| 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 |
| CN109203427A (en) * | 2018-08-29 | 2019-01-15 | 蚌埠市远红塑胶制品有限公司 | A kind of plastic film steadily discharges blowing device |
| CN110421812A (en) * | 2019-09-11 | 2019-11-08 | 郑州新生印务有限公司 | A kind of production equipment thickening PVDC film |
| CN111113854A (en) * | 2019-12-13 | 2020-05-08 | 贵州科泰天兴农业科技有限公司 | Mulching film production device and technology thereof |
| CN112078206A (en) * | 2020-08-27 | 2020-12-15 | 江苏欣润塑胶有限公司 | Transparent high-cold-resistance high-flame-retardant film, processing production line and processing method |
| CN112009025A (en) * | 2020-09-17 | 2020-12-01 | 天门市成畅塑业有限公司 | Two-in-one PE packaging bag and processing device thereof |
| CN113400610A (en) * | 2021-05-31 | 2021-09-17 | 天津新兴东方临近空间航天科技有限公司 | Multilayer co-extrusion film process for fluorine-containing resin high-performance helium barrier film |
| CN113400611A (en) * | 2021-06-18 | 2021-09-17 | 宁波长阳科技股份有限公司 | Film blow molding device and liquid crystal polymer film prepared by same |
| CN113400611B (en) * | 2021-06-18 | 2022-08-05 | 宁波长阳科技股份有限公司 | Film blow molding device and liquid crystal polymer film prepared by same |
| CN117183302A (en) * | 2023-09-10 | 2023-12-08 | 苏州鸿科新材料科技有限公司 | Film blowing machine for producing release film |
| CN117183302B (en) * | 2023-09-10 | 2024-04-16 | 苏州鸿科新材料科技有限公司 | Film blowing machine for producing release film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106626323A (en) | Double-layer coextrusion film blowing production method and equipment | |
| CN103496239B (en) | Special WVTR (water vapour transmission rate) breathable film and production process thereof | |
| CN206394000U (en) | A kind of double-layer coextrusion Blown Film production equipment | |
| CN103317729B (en) | A kind of manufacture method of online enlarging continuous winding hot forming helical bellows | |
| CN103331899B (en) | Novel air bag for composite material processing and molding | |
| CN103522552A (en) | Fluorine-containing thin film tape casting preparing method | |
| CN205705208U (en) | The blown film mechanism of explosion-proof energy saving composite courier bag | |
| CN206085650U (en) | Three -layer is crowded film blowing unit altogether | |
| CN104002417A (en) | Winding film tape-casting production line | |
| CN105172299A (en) | Cooling film and manufacturing method thereof | |
| CN107913189A (en) | Pearly-lustre facial mask and preparation method thereof | |
| CN106273312A (en) | The manufacture method of the coextruded plastic thin film that fusing point is different and die head especially used | |
| CN101879805B (en) | Multilayer film production equipment and multilayer film production method | |
| CN108823660A (en) | A kind of woven bag production wire-drawing frame and its production method | |
| CN1385295A (en) | Method and equipment for producing bidirectional stretching plastic film | |
| CN106945366B (en) | Special film for preserving packaged food for high-speed machine and preparation method thereof | |
| CN202862597U (en) | Online flaring continuous winding hot forming device of spiral corrugated pipe | |
| CN204130569U (en) | The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries | |
| CN108973066A (en) | A kind of production equipment and process producing big thickness and special thin PVC film | |
| CN205588731U (en) | Anti membrane of tearing of isotropic tensile and manufacturing installation thereof | |
| CN102328374B (en) | Production process and device of high-fiber ultra-thin plastic-covered reinforcing band | |
| CN105904811B (en) | A kind of isotropism tensile tear-resistant film and its manufacturing method | |
| CN206201415U (en) | The different coextruded plastic film of fusing point it is die head especially used | |
| CN207481257U (en) | A kind of connecting line production equipment of glued membrane backboard composite material | |
| CN213382860U (en) | Double-barrelled double-deck single colored strip of plastic tubing extrusion production facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |