CN1186732A - Multiple layer co-extruded thermal shrinkage film producing machine set and technology for producing multiple layer co-extruded thermal shrinkage film (high isolation-resistant property) - Google Patents
Multiple layer co-extruded thermal shrinkage film producing machine set and technology for producing multiple layer co-extruded thermal shrinkage film (high isolation-resistant property) Download PDFInfo
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- CN1186732A CN1186732A CN97118980A CN97118980A CN1186732A CN 1186732 A CN1186732 A CN 1186732A CN 97118980 A CN97118980 A CN 97118980A CN 97118980 A CN97118980 A CN 97118980A CN 1186732 A CN1186732 A CN 1186732A
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Abstract
The production machine set for producing thermal shrinkage film consists of plasticizing extrusion system, multiple-layer co-extrusion mould system, first cooling drawing system, second heating bidirectional drawing system, rotary winding driving system and automatic control system. The machine set has compact structure, is easy to assemble and disassemble and can produce film with high separation, high strength and certain shrinkage.
Description
And multilayer coextruding pyrocondensation film (high barrier) production technology
The present invention relates to the process that a kind of plastic shrink film and blown film are produced, multilayer coextruding pyrocondensation film unit and multilayer coextruding pyrocondensation film (high barrier) manufacturing technique method.
At present domestic still do not have multilayer coextruding pyrocondensation film unit and multilayer coextruding pyrocondensation film (high barrier) are arranged, domestic required high barrier coextruding pyrocondensation film is mostly by external import.
The objective of the invention is to propose a kind of multilayer coextruding pyrocondensation film unit and multilayer coextruding pyrocondensation film (high barrier) manufacturing technique method, solve the domestic problem that does not have the multilayer coextruding pyrocondensation film unit and can not produce the high barrier coextruding pyrocondensation film.
Major technique content of the present invention is, this set structure is the flat water-cooled bubble pipe method of blowing of forcing down, by plasticizing extrusion system I, multi-layer co-extruded die system II, once cool off that trailer system III, secondary give the heat heating biaxial tension IV of system, trailer system V is batched in rotation, automation control system VI forms, the plasticizing extrusion system is made up of hopper 1, machine barrel 2, reductor 3, hopper 1 is fixed on the machine barrel 2, in the machine barrel 2 extrusion screw rod is arranged, machine barrel and screw rod are fixed on the reductor 3, and overall fixed is on frame; Multi-layer co-extruded die system II has laminated plastics resin flow channel 15 in as shown in Figure 2, and the gap of die orifice 16 is between 0.8～1.6mm, and die orifice diameter 27 is 14～30mm, multi-layer co-extruded die system by machine barrel 2 with plastify extrusion system and be connected; Once cool off trailer system III such as Fig. 1, shown in Figure 3, this system is an autonomous system, form by cooling vane 5, cooling basin 6, hauling machine 7, the three connects as one by support, hauling machine 7 is by drive roll 18 and driven roll 18 ' form, the length of driven roll to avoid the adhesion of mould bubble, imports the post bake biaxial tension IV of system by live-roller A with the film bubble less than the 3-10mm in film pipe folding footpath; The post bake biaxial tension IV of system such as Fig. 1, shown in Figure 4 by last hauling machine 8, give thermic devices 9, heater 10, cooling and shaping device 11 and form, give thermic devices as shown in Figure 4, form the garden tubular by polylith far-infrared ray ceramic radiant heating panel 19, heater 10 is formed the garden tubular by polylith far-infrared ray ceramic radiant heating panel 20, cooling and shaping device 11 is made up of vane, 8 of last hauling machines are connected as a single entity it by support on cooling and shaping device 11; Rotation crimping device V also is autonomous system such as Fig. 1, shown in Figure 5, form by collapser 12, following hauling machine 13, rotation crimping machine 14, collapser 12 angles 22 are adjustable, carry-over pinch rolls 23 adjustable clearances of hauling machine 13, rotation crimping machine 14 is made up of curl axle 25 and electric rotating machine 24 for the rotation of double moment, and the three is connected as a single entity by big garden dish C; Complete machine is by the various technological parameters (automatic control system is patent protection in addition, does not narrate at this) of automatic controlling system production process.
Production technology of the present invention is, at first the raw material oven dry is mixed, sending into plasticizing extrusion system I will plastify afterwards resin with the resin plasticizing by the screw rods in the machine barrel 2 and clamp-on multi-layer co-extruded die system II, the laminated plastics resin flow channel 15 of resin in die head carries out in the mould compound, extrude the primary membrane pipe by die orifice 16, the primary membrane pipe enters and once cools off trailer system IV, the primary membrane pipe enters hauling machine 7 tractions after cooling vane 5 and 6 coolings of cooling basin, after send into secondary and give the heat heating biaxial tension IV of system the primary membrane pipe is given heat, heating is also blown cross directional stretch by subsidiary engine to the film pipe that gives after the heat heating, and by last hauling machine 8, following hauling machine 13 carries out longitudinal stretching, through the film pipe of biaxial tension by cooling and shaping device 11 cooling and shapings, after send into rotation crimping device V, through collapser 12 the film pipe after the biaxial tension is flattened, by following hauling machine 13, send rotation crimping machine 14 to batch, promptly finish production technology.
Technique effect of the present invention is, this unit is a kind of multilayer coextruding pyrocondensation film (the flat water-cooled bubble pipe method of blowing of forcing down) unit, be that different resins is plastified after a common die head through many extruders, resin carries out in the mould compound in die head, extrude by die orifice, draw again to heating system through once cooling off traction, utilize the mode of heating heating of far-infrared ceramic radiation to reach orientation temperature and carry out biaxial tension, behind cooling and shaping, batch and become high strength, high barrier, the multilayer coextruding pyrocondensation film of certain shrinkage factor is arranged.It is reasonable to have process route, compact conformation, and the advantage of dismounting maintenance convenient transportation can be produced 3-7 layer co-extrusion film.In addition, because complete machine adopts the various parameters of automatic controlling system, therefore, constant product quality, qualification rate height.The production technology of multilayer coextruding pyrocondensation film unit and multilayer coextruding pyrocondensation film (high barrier) has been filled up the blank that China's multilayer coextruding pyrocondensation film unit is made and multilayer coextruding pyrocondensation film is produced, promote the development of plastics machinery and relevant industries, satisfy domestic packaging industry to the multilayer coextruding pyrocondensation film unit, multilayer coextruding pyrocondensation film (high barrier, high strength, certain shrinkage factor is arranged) demand, this unit and import equipment comparative price are cheap, technological performance, this unit can be produced the casing film of anti-the boiling, multilayer coextruding pyrocondensation film, multi-layer co-extruded non-heat shrink films, tandem products such as multi-layer co-extruded retort pouch film, of many uses.
Be example explanation effect of the present invention only with three-layer co-extruded heat shrink films, this three-layer co-extruded heat shrink films is mainly the meat sausage casing film, as table one, two, show the sanitation performance index of three-layer co-extruded heat shrink films of three-layer co-extruded heat shrink films of listed import and invention and the comparison of physical performance index:
Table one sanitary index (should meet GB9687)
| Project | The film imported index | Invention film index |
| 60 ℃ of evaporation residue mg/l 4% acetic acid, 20 ℃ of 2h≤65% ethanol, 2h≤potassium permanganate consumption mg/160 ℃, 60 ℃ of 2h≤heavy metal (mpb) mg/l 4% ester acid, 2h≤ | ????30 ????30 ????10 ?????1 | ????18.0 ????14.7 ?????5.9 ?????0.7 |
Table two physical performance index
| Performance | The film imported index | Invention film index |
| Hot strength MPa 〉=elongation at break, (vertical/mould) % 〉=angle tear strength N/mm 〉=percent thermal shrinkage, (vertical/horizontal stroke) % oxygen permeating amount ml/m 24h ATM≤steam penetrating capacity g/m 24h≤ | ?????15 ?????150 ?????50 ????10-60 ?????400 ?????130 | 36.2 280 136 horizontal 32 vertical 40 61 28.6 |
The multilayer coextruding pyrocondensation film casing film serviceability requirement that is used for meat sausage is the comparison harshness.For example the skin of PP TYPE has used LDPE to be supporting material, and characteristic is versatility, heat sealability, moisture resistance, flexibility, resistance to chemical reagents; Internal layer uses PA to belong to barrier material, and characteristic is gas barrier property, oil resistivity, resistance to chemical reagents, high mechanical properties; EVA is the intermediate layer, belongs to jointing material, except that the feature with LDPE, still has impact resistance and very strong cohesive.Five-layer structure uses its barrier of EVOH better in this way.The multilayer coextruding pyrocondensation film of three-decker makes full use of three class properties of materials, reaches the purpose of its characteristic complementation, has satisfied the requirement of meat sausage high-barrier flexible package.Multilayer coextruding pyrocondensation film and the multi-layer co-extruded hot contraction ratio of import, the performance indications of invention have reached.From the selling price ratio, be lower than the 20-30% of similar import multilayer coextruding pyrocondensation film ton price, as pressing 3000 tons of calculating of present domestic demand amount, year can be saved a large amount of foreign exchanges, reduces the cost of meat sausage enterprise and meat sausage consumer's financial burden.
Fig. 1 is the frame for movement schematic diagram of multilayer coextruding pyrocondensation film unit of the present invention;
Fig. 2 is the multi-layer co-extruded die system structural representation of multilayer coextruding pyrocondensation film unit of the present invention;
Fig. 3 is the carry-over pinch rolls structural representation that once draws cooling system of multilayer coextruding pyrocondensation film unit of the present invention;
Fig. 4 gives heat heating biaxial tension system architecture schematic diagram for the secondary of multilayer coextruding pyrocondensation film unit of the present invention;
Fig. 5 batches the trailer system structural representation for the rotation of multilayer coextruding pyrocondensation film unit of the present invention;
Fig. 6 is the technological process of production of multilayer coextruding pyrocondensation film of the present invention (high barrier).
I plastifies extrusion system, the multi-layer co-extruded die system of II, III once cools off trailer system, the IV secondary gives heat heating biaxial tension system, the curling system of V rotation, automatic control system, 1 hopper, 2 machine barrels, 3 reductors, 4 multi-layer co-extruded moulds, 5 cooling vanes, 6 cooling basins, 7 hauling machines, hauling machine on 8,9 give thermic devices, 10 heaters, 11 cooling and shaping devices, 12 collapsers, 13 times hauling machines, 14 rotation crimping machines, 15 multi-layer co-extruded plastics resin flow channels, 16 die orifices, 17 die orifice diameters, 18 drive rolls, 18 ' driven roll 19,20 ceramic radiation heating plates, 21 give the heating power supply terminal box, the angle of 22 collapsers, the carry-over pinch rolls of 23 times hauling machines, 24 electric rotating machines, 25 curling axles.
Realize embodiments of the invention as shown in the figure.
This unit can be produced 3-7 layer co-extrusion film, how much changes corresponding multi-layer co-extruded die system II according to rete and gets final product.
Claims (3)
1, multilayer coextruding pyrocondensation film unit, the structure that it is characterized in that this unit is the flat water-cooled bubble pipe method of blowing of forcing down, by plasticizing extrusion system (I), multi-layer co-extruded die system (II), once cool off that trailer system (III), secondary give heat heating biaxial tension system (IV), trailer system (V) is batched in rotation, automatic control system is formed; The plasticizing extrusion system is made up of hopper (1), machine barrel (2), reductor (3), and hopper (1) is fixed on the machine barrel (2), and machine barrel has extrusion screw rod in (2), and machine barrel and screw rod are fixed on the reductor (3), and overall fixed is on frame; Multi-layer co-extruded die system (II) has laminated plastics resin flow channel (15) in the multi-layer co-extruded die head (4), the gap of die orifice (16) is 0.8～1.6mm, die orifice diameter (17) is 14～30mm, and multi-layer co-extruded die system is connected with the plasticizing extrusion system by machine barrel (2); Once cool off trailer system (III) and be autonomous system, form by cooling vane (5), cooling basin (6), hauling machine (7), the three connects as one by support, hauling machine (7) is made up of drive roll (18) and driven roll (18 '), the length of driven roll is less than the 3-10mm in film pipe folding footpath, and the film bubble imports secondary by live-roller (A) and gives heat heating biaxial tension system (IV); Secondary give heat heating biaxial tension system (IV) by last hauling machine (8), give thermic devices (9), heater (10), cooling and shaping device (11) and form, give thermic devices and form the garden tubular by polylith far-infrared ray ceramic radiant heating panel (19), heater (10) is also penetrated heating plate (20) by the polylith far-infrared ray ceramic width of cloth and is formed the garden tubular, cooling and shaping device (11) is made up of vane, last hauling machine (8) seat is connected as a single entity it by support on cooling and shaping device (11).Rotation crimping device (V) also is an autonomous system, form by collapser (12), following hauling machine (13), rotation crimping machine (14), the angle of collapser (22) is adjustable, the carry-over pinch rolls of following hauling machine (23) adjustable clearance, the rotation crimping machine is the rotation of double moment, be made up of curl axle (25) and electric rotating machine (24), the three is coiled (C) by big garden and is connected as a single entity; Complete machine is by the various technological parameters of automatic controlling system production process.
2, multilayer coextruding pyrocondensation film (high barrier) production technology, it is characterized in that this film is that application rights requires 1 multilayer coextruding pyrocondensation film (high barrier) unit production, its production technology is at first mixing the raw material oven dry, sending into plasticizing extrusion system (I) will plastify afterwards resin with resin plasticizing by the screw rod in the machine barrel (2) and clamp-on multi-layer co-extruded die system (II), the laminated plastics resin flow channel (15) of resin in die head carries out in the mould compound, extrude the primary membrane pipe by die orifice (16), the primary membrane pipe enters and once cools off trailer system (IV), the primary membrane pipe enters hauling machine (7) traction after cooling vane (5) and cooling basin (6) cooling, after send into secondary and give heat heating biaxial tension system (IV) the primary membrane pipe is given heat, heating is also carried out the inflation cross directional stretch by subsidiary engine to the film pipe that gives after the heat heating, and by last hauling machine (8), following hauling machine (13) carries out longitudinal stretching, through the film pipe of biaxial tension by cooling and shaping device (11) cooling and shaping, after send into the rotation crimping device (V), through collapser (12) the film pipe after the biaxial tension is flattened, send rotation crimping machine (14) to batch by following hauling machine (13), promptly finish production technology.
3, according to the described multilayer coextruding pyrocondensation film unit of claim 1, it is characterized in that this unit can produce 3-7 layer co-extrusion film, get final product according to the co-extrusion die head systems (II) of the different transposing of rete equivalent layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118980A CN1055264C (en) | 1997-10-09 | 1997-10-09 | Multiple layer co-extruded thermal shrinkage film producing machine set and technology for producing multiple layer co-extruded thermal shrinkage film (high isolation-resistant property) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118980A CN1055264C (en) | 1997-10-09 | 1997-10-09 | Multiple layer co-extruded thermal shrinkage film producing machine set and technology for producing multiple layer co-extruded thermal shrinkage film (high isolation-resistant property) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186732A true CN1186732A (en) | 1998-07-08 |
| CN1055264C CN1055264C (en) | 2000-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97118980A Expired - Fee Related CN1055264C (en) | 1997-10-09 | 1997-10-09 | Multiple layer co-extruded thermal shrinkage film producing machine set and technology for producing multiple layer co-extruded thermal shrinkage film (high isolation-resistant property) |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311960C (en) * | 2004-02-26 | 2007-04-25 | 甘国工 | Method and device of continuous producing orthogonal complex bidirection antistretching cylindrical film having heat-seal lager |
| CN100355554C (en) * | 2004-10-13 | 2007-12-19 | 甘国工 | Continuous method for fabricating orthogonal composite bidirectional tensile cylindrical shaped membrane with heat seal layer, and equipment |
| CN100427292C (en) * | 2005-03-18 | 2008-10-22 | 陈亦锋 | Co-extrusion mould head for packaging bag production |
| CN101941290A (en) * | 2010-07-30 | 2011-01-12 | 广东金明精机股份有限公司 | Self-adhesion membrane blowing production equipment and production method |
| CN103009620A (en) * | 2011-09-20 | 2013-04-03 | 上海华义化工科技有限公司 | Heating method and heating device of tubular film blank tube |
| CN103158250A (en) * | 2013-03-29 | 2013-06-19 | 温州新大自封袋设备有限公司 | Polypropylene (PP) self-sealing bag film blowing machine |
| CN103707528A (en) * | 2013-12-31 | 2014-04-09 | 青岛顺德塑料机械有限公司 | High-permeability membrane production line and high-permeability membrane production process |
| CN104191588A (en) * | 2014-08-15 | 2014-12-10 | 浙江渤海卫生用品有限公司 | Film blowing equipment applicable to full biodegradable plastics |
| WO2017112886A1 (en) * | 2015-12-23 | 2017-06-29 | Coveris Holding Corp. | Multi-layer films and methods of manufacturing the same |
| CN107672191A (en) * | 2017-09-13 | 2018-02-09 | 昆山市张浦彩印厂 | A kind of preparation method of multi-layer co-extrusion two-way stretching laminated film |
| CN113021856A (en) * | 2021-03-23 | 2021-06-25 | 四川群琪科技有限公司 | Multilayer plastic film blowing method |
| CN115537014A (en) * | 2022-10-26 | 2022-12-30 | 广东九易医疗设备有限公司 | Formula and forming process of ultrathin anti-slip drum membrane |
-
1997
- 1997-10-09 CN CN97118980A patent/CN1055264C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311960C (en) * | 2004-02-26 | 2007-04-25 | 甘国工 | Method and device of continuous producing orthogonal complex bidirection antistretching cylindrical film having heat-seal lager |
| CN100355554C (en) * | 2004-10-13 | 2007-12-19 | 甘国工 | Continuous method for fabricating orthogonal composite bidirectional tensile cylindrical shaped membrane with heat seal layer, and equipment |
| CN100427292C (en) * | 2005-03-18 | 2008-10-22 | 陈亦锋 | Co-extrusion mould head for packaging bag production |
| CN101941290A (en) * | 2010-07-30 | 2011-01-12 | 广东金明精机股份有限公司 | Self-adhesion membrane blowing production equipment and production method |
| CN103009620A (en) * | 2011-09-20 | 2013-04-03 | 上海华义化工科技有限公司 | Heating method and heating device of tubular film blank tube |
| CN103158250A (en) * | 2013-03-29 | 2013-06-19 | 温州新大自封袋设备有限公司 | Polypropylene (PP) self-sealing bag film blowing machine |
| CN103707528A (en) * | 2013-12-31 | 2014-04-09 | 青岛顺德塑料机械有限公司 | High-permeability membrane production line and high-permeability membrane production process |
| CN103707528B (en) * | 2013-12-31 | 2016-11-16 | 青岛顺德塑料机械有限公司 | A kind of high transmittance film production line and production technology thereof |
| CN104191588A (en) * | 2014-08-15 | 2014-12-10 | 浙江渤海卫生用品有限公司 | Film blowing equipment applicable to full biodegradable plastics |
| WO2017112886A1 (en) * | 2015-12-23 | 2017-06-29 | Coveris Holding Corp. | Multi-layer films and methods of manufacturing the same |
| CN107672191A (en) * | 2017-09-13 | 2018-02-09 | 昆山市张浦彩印厂 | A kind of preparation method of multi-layer co-extrusion two-way stretching laminated film |
| CN113021856A (en) * | 2021-03-23 | 2021-06-25 | 四川群琪科技有限公司 | Multilayer plastic film blowing method |
| CN115537014A (en) * | 2022-10-26 | 2022-12-30 | 广东九易医疗设备有限公司 | Formula and forming process of ultrathin anti-slip drum membrane |
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|---|---|
| CN1055264C (en) | 2000-08-09 |
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