CN203527849U - Blow-molding system for three-layer coextruded plastic film - Google Patents
Blow-molding system for three-layer coextruded plastic film Download PDFInfo
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- CN203527849U CN203527849U CN201320445384.9U CN201320445384U CN203527849U CN 203527849 U CN203527849 U CN 203527849U CN 201320445384 U CN201320445384 U CN 201320445384U CN 203527849 U CN203527849 U CN 203527849U
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Abstract
The utility model discloses a blow-molding system for a three-layer coextruded plastic film. The blow-molding system comprises a screw plastic extruding unit, a three-layer coextruded spiral-body inner cooling mold head, a cooling device, an upward-traction rotary traction machine and a winding device, wherein the screw plastic extruding unit is connected with the three-layer coextruded spiral-body inner cooling mold head; the cooling device is arranged on the three-layer coextruded spiral-body inner cooling mold head which is connected with the upward-traction rotary traction machine; the winding device is connected with the upward-traction rotary traction machine; and a correcting device is arranged between the winding device and the upward-traction rotary traction machine. The blow-molding system disclosed by the utility model has the advantages that by the mode, the three-layer coextruded plastic film with excellent performance can be produced, the resource consumption is small, the yield is high and the safe and reliable effects are achieved.
Description
Technical field
The utility model relates to plastic sheeting blowing field, particularly relates to a kind of blow-molding system of three-layer co-extruded plastic sheeting.
Background technology
It is multiple that the production of plastic foil generally comprises blowing, extrusion molding, rolling process etc., and the vertical lateral performance balance of film of producing due to extrusion molding in these techniques, internal stress free, the excellent feature optimum of heat sealability are used for heat-sealing.But the equipment investment of extrusion molding is large, limited actual utilization rate, increase the production cost of enterprise, thereby used the heat-sealing film of more still being produced by blowing.The blow moulding equipment of traditional plastic sheeting, adopt plasticizing, kneading device that single screw extrusion machine is plastics, be limited to single screw extrusion machine plasticizing, melting effect deficiency, cannot apply the plastic mixture of high filler content, directly make the plastic sheeting of superior in quality high filler content.
Summary of the invention
The technical problem that the utility model mainly solves is to provide a kind of blow-molding system of three-layer co-extruded plastic sheeting, can produce the three-layer co-extruded plastic sheeting of function admirable, and resource consumption is few, and output is high, safe and reliable.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the blow-molding system that a kind of three-layer co-extruded plastic sheeting is provided, comprise: screw rod plastic is extruded unit, cold die head in three-layer co-extruded conveyor screw, cooling device, upper traction rotation tractor and wrap-up, described screw rod plastic is extruded unit and is connected with cold die head in three-layer co-extruded conveyor screw, described cooling device is arranged on the interior cold die head of three-layer co-extruded conveyor screw, in described three-layer co-extruded conveyor screw, cold die head is connected with upper traction rotation tractor, described wrap-up is connected with upper traction rotation tractor, between described wrap-up and upper traction rotation tractor, be provided with deviation correcting device.
In preferred embodiment of the utility model, described screw rod plastic is extruded unit and is comprised the first helical plastic extruder, the second helical plastic extruder and triple helical plastic extruder, the outer layered material of plastic sheeting is housed in described the first helical plastic extruder, in described the second helical plastic extruder, the thin middle material of plastic foil is housed, in described triple helical plastic extruder, film internal layer material is housed.
In preferred embodiment of the utility model, described cooling device is two air ports cooling vanes.
In preferred embodiment of the utility model, on described upper traction rotation tractor, be also provided with trimming device and scrap edge winding device, on described scrap edge winding device, be connected with recovery barrel, described recovery barrel is extruded unit with screw rod plastic and is connected.
In preferred embodiment of the utility model, on described the first helical plastic extruder, the second helical plastic extruder and triple helical plastic extruder, be provided with heater, the heating-up temperature interval of described heater is 140-160 ℃.
The beneficial effects of the utility model are: the blow-molding system of the three-layer co-extruded plastic sheeting of the utility model, can produce the three-layer co-extruded plastic sheeting of function admirable, and resource consumption is few, and output is high, safe and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of blow-molding system one preferred embodiment of the three-layer co-extruded plastic sheeting of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, helical plastic is extruded unit, 2, cold die head in three-layer co-extruded conveyor screw, 3, cooling device, 4, upper traction rotation tractor, 5, wrap-up, 6, deviation correcting device, 7, trimming device, 8, scrap edge winding device, 9, reclaim barrel, 10, the first extruser, the 11, second extruser, 12, triple helical extruder.
The specific embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of blow-molding system of three-layer co-extruded plastic sheeting, comprise: screw rod plastic is extruded unit 1, cold die head 2 in three-layer co-extruded conveyor screw, cooling device 3, upper traction rotation tractor 4 and wrap-up 5, described screw rod plastic is extruded unit 1 and is connected with cold die head 2 in three-layer co-extruded conveyor screw, described cooling device 3 is arranged on the interior cold die head 2 of three-layer co-extruded conveyor screw, in described three-layer co-extruded conveyor screw, cold die head 2 is connected with upper traction rotation tractor 4, described wrap-up 5 is connected with upper traction rotation tractor 4, between described wrap-up 5 and upper traction rotation tractor 4, be provided with deviation correcting device 6, described screw rod plastic is extruded unit 1 and is comprised the first helical plastic extruder 10, the second helical plastic extruder 11 triple helical plastic extruders 12, the outer layered material of plastic sheeting is housed in described the first helical plastic extruder 10, in the crowded machine 11 of described the second helical plastic goes out, the thin middle material of plastic foil is housed, in described triple helical plastic extruder 12, film internal layer material is housed.
In addition, described interior layered material comprises that following raw material forms by mass fraction: 38 parts of ethane-acetic acid ethyenyl ester copolymer resinses, 75 parts of LLDPE and 75 parts of LDPE; Described middle material comprises that following raw material forms by mass fraction: 20 parts of ethane-acetic acid ethyenyl ester copolymer resinses, 50 parts of LLDPE and 50 parts of LDPE; Described outer layered material comprises that following raw material forms by mass fraction: 62.5 parts of ethane-acetic acid ethyenyl ester copolymer resinses, 50 parts of LLDPE and 50 parts of LDPE, the thickness of interior layered material, middle material and the three-layer co-extruded plastic sheeting forming of outer layered material is 0.005cm.
In addition, described cooling device 3 is two air ports cooling vanes.
In addition, on described upper traction rotation tractor 4, be also provided with trimming device 7 and scrap edge winding device 8, be connected with and reclaim barrel 9 on described scrap edge winding device 8, described recovery barrel 9 is extruded unit phase 1 with screw rod plastic and is connected.
In addition, on described the first helical plastic extruder 10, the second helical plastic extruder 11 and triple helical plastic extruder 12, be provided with heater, the heating-up temperature interval of described heater is 140-160 ℃.
In addition, the first helical plastic extruder 10, the second helical plastic extruder 11 and triple helical plastic extruder 12 be interior is equipped with respectively interior layered material, middle material and outer layered material, at the first helical plastic extruder 10, the second helical plastic extruder 11, in triple helical plastic extruder 12 and three-layer co-extruded conveyor screw, cold die head 2 reaches after predetermined temperature, governing speed also starts the first helical plastic extruder 10, the second helical plastic extruder 11 and triple helical plastic extruder 12, the first helical plastic extruder 10, heater on the second helical plastic extruder 11 and triple helical plastic extruder 12 heats, after heating, interior layered material, the temperature of middle material and outer layered material is 140-160 ℃, interior layered material, middle material and outer layered material enter cold die head 2 in three-layer co-extruded conveyor screw, when material is extruded from die orifice, regulate turnover amount and the open cold radiator cooler of cooling device 3, cooling device is two air ports cooling vanes, the molten plastic cylinder that die orifice is extruded has been seized, kneading is bubble base, kneading place is clapped flat.Film is put into upper traction rotation tractor 4 and wrap-up 6, linear velocity and the air compressing amount of traction rotation tractor 4, wrap-up 6 in adjusting, in startup, traction rotation tractor 4 and wrap-up 5, batch three-layer co-extruded plastic sheeting by wrap-up 6, three-layer co-extruded plastic sheeting is due to the not impact of the various factors such as absolute parallel of upper traction rotation and each deflector roll, before rolling not trimming in the situation that, three-layer co-extruded plastic sheeting there will be the phenomenon of left and right skew, by deviation correcting device 6, can avoid the skew that three-layer co-extruded plastics are thin, the 7 pairs of three-layer co-extruded plastic sheetings of trimming device that are arranged on traction rotation tractor 4 carry out trimming, the slitter edge cutting reclaims by scrap edge winding device 8, the slitter edge reclaiming enters and reclaims barrel 9, after recovery barrel 9 processing slitter edges, again raw material is sent back to screw rod plastic and extrude the waste that unit 2 is recycled effective minimizing material, at die head, when extruder reaches predetermined temperature, should be incubated again 60 minutes consistent to reach internal and external temperature.Slowly start extruder, treat that material extrudes from die orifice, whether evenly note observing plasticizing, open vane air blast, the molten plastic cylinder that die orifice is extruded has been seized, and is kneaded into bubble base, and kneading place is clapped to flat (if the plastics glomeration of bubble base end, easily at collapser and nip rolls junction, be stuck), by leash, bubble base is fastened, send into compressed air and affect nylon tape as auxiliary traction.Film bubble is after collapser enters traction nip rolls, and nip rolls is closed.Film enters nip rolls after the nip rolls of wrap-up, closure.After periosteum is basicly stable, available wrap-up batches film.Regulate extruder rotating speed, linear velocity and the air supply of upper traction rotation tractor and wrap-up, in adjusting, air-cooler turnover amount makes thickness and the width of film, reach the specification requirement of regulation, according to film pipe diameter, adjust steady bubble frame opening and flipper guide distance, guarantee that film pipe is stable, when blown film, rolling are all normal, quality of item reaches after requirement, can start upper traction whirligig.When batching diameter and reach requirement and carry out change of lap, first on preparation reel around on viscose paper, be placed on coiling machine wallboard v-notch place, shake change of lap handle, make to prepare roller and move to rolling rubber roll top (preparation station), cut off film, the film having wound is moved to arc afterbody, shake change of lap handle again, the Scroll of newly changing is slowly moved on rolling station, change of lap completes.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. the blow-molding system of a three-layer co-extruded plastic sheeting, it is characterized in that, comprise: screw rod plastic is extruded unit, cold die head in three-layer co-extruded conveyor screw, cooling device, upper traction rotation tractor and wrap-up, described screw rod plastic is extruded unit and is connected with cold die head in three-layer co-extruded conveyor screw, described cooling device is arranged on the interior cold die head of three-layer co-extruded conveyor screw, in described three-layer co-extruded conveyor screw, cold die head is connected with upper traction rotation tractor, described wrap-up is connected with upper traction rotation tractor, between described wrap-up and upper traction rotation tractor, be provided with deviation correcting device.
2. the blow-molding system of three-layer co-extruded plastic sheeting according to claim 1, it is characterized in that, described screw rod plastic is extruded unit and is comprised the first helical plastic extruder, the second helical plastic extruder and triple helical plastic extruder, the outer layered material of plastic sheeting is housed in described the first helical plastic extruder, in described the second helical plastic extruder, the thin middle material of plastic foil is housed, in described triple helical plastic extruder, film internal layer material is housed.
3. the blow-molding system of three-layer co-extruded plastic sheeting according to claim 1, is characterized in that, described cooling device is two air ports cooling vanes.
4. the blow-molding system of three-layer co-extruded plastic sheeting according to claim 1, it is characterized in that, on described upper traction rotation tractor, be also provided with trimming device and scrap edge winding device, on described scrap edge winding device, be connected with recovery barrel, described recovery barrel is extruded unit with screw rod plastic and is connected.
5. the blow-molding system of three-layer co-extruded plastic sheeting according to claim 2, it is characterized in that, on described the first helical plastic extruder, the second helical plastic extruder and triple helical plastic extruder, be provided with heater, the heating-up temperature interval of described heater is 140-160 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445384.9U CN203527849U (en) | 2013-07-25 | 2013-07-25 | Blow-molding system for three-layer coextruded plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445384.9U CN203527849U (en) | 2013-07-25 | 2013-07-25 | Blow-molding system for three-layer coextruded plastic film |
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| CN203527849U true CN203527849U (en) | 2014-04-09 |
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| CN201320445384.9U Expired - Fee Related CN203527849U (en) | 2013-07-25 | 2013-07-25 | Blow-molding system for three-layer coextruded plastic film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532162A (en) * | 2018-12-20 | 2019-03-29 | 东莞市金恒晟新材料科技有限公司 | A kind of protective film and its production technology with antifouling anti-scratch |
| CN111471284A (en) * | 2020-04-24 | 2020-07-31 | 重庆佳磊印务有限公司 | Production process of degradable environment-friendly plastic product |
-
2013
- 2013-07-25 CN CN201320445384.9U patent/CN203527849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532162A (en) * | 2018-12-20 | 2019-03-29 | 东莞市金恒晟新材料科技有限公司 | A kind of protective film and its production technology with antifouling anti-scratch |
| CN111471284A (en) * | 2020-04-24 | 2020-07-31 | 重庆佳磊印务有限公司 | Production process of degradable environment-friendly plastic product |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20150725 |
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| EXPY | Termination of patent right or utility model |