CN203393282U - Device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate) - Google Patents
Device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate) Download PDFInfo
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- CN203393282U CN203393282U CN201320374952.0U CN201320374952U CN203393282U CN 203393282 U CN203393282 U CN 203393282U CN 201320374952 U CN201320374952 U CN 201320374952U CN 203393282 U CN203393282 U CN 203393282U
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Abstract
The utility model discloses a device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate), which belongs to the field of high polymer material processing machinery. The device for producing the ribbon-like filaments by utilizing the waste PET is formed by a double-screw extruder, a filter, a metering pump, a PET ribbon-like filament nose assembly, a cooling device, a separator roll, a draw machine, a water bath heating device, an inductance heating setting roller and a coiling device, and is characterized in that filtration sands, a runner, a spreader plate and a die are arranged in a special PET ribbon-like filament nose from up to down; runner holes and ribbon-like filament holes are arranged on an end face of a material inlet of the special PET ribbon-like filament nose; the ribbon-like filament holes are located in the runner holes; the runner holes are annularly arrayed on the end face; the water bath heating device is formed by an upper water tank and a lower water tank which are connected through a pipeline; pulleys are respectively arranged on two ends of the upper water tank; a water inlet and outlet, a circulating water pump, a heating rod and a thermoelectric couple are arranged on a bottom part of the lower water tank and are respectively connected with a power supply; and two end ports of the circulating water pump are respectively connected into the upper water tank and the lower water tank, and hot and cold water circulation is carried out. The prepared PET ribbon-like filaments have better toughness and drafting performance, effectively solves the difficult problem that the PET ribbon-like filaments are easy to break when being drafted during a PET ribbon-like filament production process, have more than 50 MPa breaking strength, and can be applied to the production field of woven bags and flexible freight bags with high performances.
Description
Technical field
The utility model belongs to processing of high molecular material mechanical field, particularly a kind of relevant device that utilizes waste PET production high-performance flat filament.
Background technology
The very large purposes of polypropylene (PP) is to produce woven bag, due to polypropylene woven bag easily separated with packing material, quality is light, cost is low, be widely used in chemical industry, mineral products powder, building materials and grain etc. and combined greatly the packing of product.But, because PP weatherability is poor, oxidizable, cause its oxidative degradation, the mechanical strength of woven bag in depositing process, especially impact strength significantly reduces, impact packing effect.
Mechanical property and the weatherability of polyethylene terephthalate (PET) are all better.According to statistics, the annual PET bottle of China sheet production capacity reaches 500 Wan Dun，Wei world PET productions, consumes the first big country.The production capacity of world PET is still with annual 1.8% speed increment.But PET is difficult for degraded under field conditions (factors), a large amount of waste PET goods contaminated environment, countries in the world all take much count of recovery and the recycle of PET.
At present, the producer of more domestic production PP flat filament equipment manufacturers and production woven bag is all attempting utilizing waste PET to develop high-performance, ageing-resistant PET flat filament and woven bag, but some improvement are just done on original PP Flat Yarn Production line basis by most producer.Because the vitrification point of PET is higher, melt viscosity is less, and strand rigidity is large, resets motion slowly, and crystalline rate is low, to such an extent as to it is serious on PP Flat Yarn Production line, to produce PET flat filament fracture of wire situation, cannot normally produce continuously.
Chinese patent CN102094252A discloses a kind of PET yarn drawing unit, and it comprises drier, extruder, filter, measuring pump, die head, cooling device, draw-gear, longitudinal cutting device, heater, stretching device, wrap-up.Drier is the vacuum drying tank with having heaters and agitator, by PET raw material finish-drying.PET melt switches, extrudes PET sheet material after fondant filter impurity screening through twin-tub, then through cooling, drawing-off, minute cut into flat filament.But it still can face PET and add and cause the problem that melt viscosity is low, machinability is poor because of thermal degradation man-hour in recovery.Meanwhile, it adopts hot plate heating heat transfer efficiency low, and flat filament upper and lower surface temperature is uneven, temperature control poor accuracy, and while longitudinally cutting, cutting knife can divide tangent plane to cause damage to flat filament, and it is serious that PET flat filament still can fracture of wire in drafting process.
Japan Patent JP2003049323A discloses a kind of method of utilizing regenerative PET to produce flat filament, and this patent has related to carries out adhesiveness increasing and modifying to PET.Production procedure is: melt extrude → cooling → cut → drawing-off → HEAT SETTING → batch.Cutting knife can divide tangent plane to cause damage to flat filament, still adopts the hot plate heating drawing-off mode that heat transfer efficiency is lower, can cause flat filament upper and lower surface temperature uneven.
Chinese patent CN2263113Y has announced a kind of a kind of Ribbon-like filament spinneret plate of producing Polyster ribbon-like filament, and described spinneret orifice is comprised of micropore two parts of circular guide hole and rectangle, and its rectangular opening mould length and width, than little, more approaches general fibre.Chinese patent CN2276507Y discloses a kind of for weaving the Polyster ribbon-like filament of Household sanitary appliance, and production procedure is: raw material section → pre-crystallized, dry → melt spinning → water-bath be cooling → and drawing-off → HEAT SETTING → cooling → batch.It still adopts conventional P P Flat Yarn Production flow process and cooling draft apparatus, and this Polyster ribbon-like filament is used for working out Household sanitary appliance, and General Requirements flat filament has certain deflection, flat filament thickness 0.5 ~ 1mm, and flat filament broadband is less than 3mm.
Chinese patent CN202610417U has announced a kind of plastic flat filament drawing machine group, and its production procedure is: first by the tape casting, extrude PET sheet material, then through cutting, hot drawing-off batches and can become flat filament after HEAT SETTING.But relate to, PET is not carried out to chemical modification, still continue to use the process of first cutting drawing-off again.
Chinese patent CN102534833A has announced a kind of drawing mechanism of plastic flat fiber stretching unit, and guide wheel is wherein below heating water bath case, and flat filament will, by guide wheel bottom, because frictional force is large, can cause fracture of wire in drafting process.
Chinese patent CN201645778U has announced a kind of wire drawing machine of Novel double-screw melt extrusion pump steady extruding flow rate.It installs Melt Pump and connecting bushing at extrusion machine head place, can substitute the plastic flat film drawing machine of single screw rod, shortens material time of staying in machine barrel, improves the plasticizing capacity of extruder, is suitable for the processing of regenerated plastics (PP, PE etc.).
In sum, at present about utilizing waste PET to produce to be still faced with in the technology of flat filament PET to add the problem of on the low side, the poor toughness of melt viscosity in man-hour in recovery.Adopt while longitudinally cutting, there is little crazing in the edge of cutting of flat filament, easily develops into stress concentration point in drawing and heat-setting process.In addition, the vitrification point of PET is higher, and melt viscosity is less, and PET strand rigidity is large, and rearrangement slowly, adopts the method for hot plate heating drawing-off, is difficult to uniformity and accuracy that assurance is conducted heat, and during the drawing-off of PET flat filament, fracture of wire is serious.Urgent need is improved its processing technology and relevant device.
Summary of the invention
The purpose of this utility model is to provide a kind of device that utilizes waste PET to produce flat filament, improves TENSILE STRENGTH and the pliability of flat filament, solves in drafting process the problems such as easy fracture simultaneously.
For realizing the utility model object, the device of waste PET production flat filament that utilizes described in the utility model consists of successively response type double screw extruder, filter, measuring pump, PET flat filament nose assembly, cooling device, minute roll dies, drawing machine, water bath heating device, inductive heating setting roller, batching apparatus, it is characterized in that, in PET flat filament special had, be provided with filter sand, runner, flow distribution plate, mouthful mould from top to bottom; PET flat filament special had feeding mouth end face is provided with runner hole and flat filament hole, and flat filament hole is positioned at runner hole, and runner hole is in end face circular array.Water bath heating device is comprised of upper and lower two water tanks, by pipeline, connect, upper water box two ends are respectively equipped with pulley, lower header bottom is provided with intake-outlet, water circulating pump, heating rod, thermocouple, water circulating pump, heating rod, thermocouple connect respectively power supply, water circulating pump two-port passes into respectively upper and lower two water tanks, carries out hot and cold water circulation.
The preferred inductive heating seven roll-type setting rollers of described inductive heating setting roller.
The preferred slotted eye in runner hole, the preferred rectangular opening in flat filament hole.
Utilize this device to produce to take the flat filament method that waste PET is raw material as follows: the mode that waste PET is extruded by reaction, PET is carried out by special-purpose sub-wire mould, directly extruding flat filament after tackify and toughening modifying, after cooling, adopt heating water bath drafting method draw orientation, through the sizing of inductive heating hot-rolling, after chill roll is cooling, batch again.
The utlity model has following advantage: 1, PET melt is delivered in PET flat filament dedicated extruder head assembly through measuring pump, guarantee flat filament dimensional homogeneity, PET melt is directly extruded into silk under the effect of runner and extrusion neck ring mold, the crazing of effectively avoiding cutting knife to produce in PET flat filament side.2, traditional PP flat filament adopts hot plate heat-shaping, main radiation and the air of relying on conducts heat, temperature control accuracy and heat transfer efficiency are all lower, the utility model adopts inductive heating shaping equipment, allow PET flat filament be close to setting roll surface and carry out heat-shaping, for PET strand, reset motion and create better condition, improve degree of crystallinity and the TENSILE STRENGTH of flat filament, solve in braiding process the problems such as easy fracture.
Accompanying drawing explanation
fig. 1for the utility model Flat Yarn Production process schematic representation
;in figure: 1-double screw extruder, 2-filter, 3-measuring pump, 4-PET flat filament nose assembly, 5-mouth mould, 6-bosh, 7-divide roll dies, 8-seven roller drawing machines, 9-water bath heating device, 10-five roller drawing machines, 11-inductive heating setting roller, 12-cooling device, 13-batching apparatus;
fig. 2for the utility model PET flat filament special had assembly schematic diagram; In figure: 14 was filter sand, 15 is runner, and 16 is flow distribution plate;
fig. 3for the utility model PET Flat Filament Machine end surface figure; In figure: 17 is flat filament hole, and 18 is runner hole;
fig. 4for the utility model PET flat filament head is extruded slit partial enlarged drawing;
fig. 5for the utility model PET flat filament water bath heating device structural representation; In figure: 19 is PET flat filament, 20 is water circulating pump, and 21 is thermocouple, and 22 is heating rod;
fig. 6for the utility model PET flat filament inductive heating seven roller setting roller structural representations; In figure: 11 is inductive heating setting roll.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate
thisutility model technical scheme:
Embodiment 1
The device that the utility model utilizes waste PET to produce flat filament is assembled successively by double screw extruder 1, filter 2, measuring pump 3, PET flat filament nose assembly 4, mouthful mould 5, cooling bath 6, minute roll dies 7, seven roller drawing machines 8, water bath heating device 9, five roller drawing machines 10, inductive heating seven roll-type setting rollers 11, cooling device 12, batching apparatus 13, it is characterized in that, in PET flat filament special had assembly 4, be provided with filter sand 14, runner 15, flow distribution plate 16, mouthful mould 5 from top to bottom; PET flat filament special had assembly 4 discharging opening end faces are provided with flat filament hole 17 and runner hole 18, and flat filament hole 17 is positioned at runner hole 18, and runner hole 18 is in end face circular array, and slotted eye is selected in runner hole, and rectangular opening is selected in flat filament hole.
Water bath heating device 9 is comprised of upper and lower two water tanks, by pipeline, connect, upper water box two ends are respectively equipped with pulley, lower header bottom is provided with intake-outlet, water circulating pump 20, thermocouple 21, heating rod 22, water circulating pump 20, thermocouple 21, heating rod 22 connect respectively power supply, water circulating pump 20 two-port pass into respectively upper and lower two water tanks, carry out hot and cold water circulation.
Utilize this device to produce to take the flat filament that waste PET is raw material to realize as follows:
1) waste PET pellet is dry, mix with chain extender, toughness reinforcing bulking agent, nucleator and filler etc.; Its consumption is respectively the 0.1-10% of PET raw material weight.
2) in double screw extruder 1, carry out melt blending at 250～280 ℃, make it that chain extending reaction occur, improve the melt viscosity of PET and the toughness of PET, improve the drawing-off performance of PET flat filament.
3) the PET melt after modification is by measuring pump 2, be delivered to the PET of molten state uniformly and extrude the nascent flat filament of the many PET that 3～10mm is wide, 0.1～0.6mm is thick in PET flat filament special had assembly 4, in cooling bath 6, carry out cooling, through a minute roll dies 7, drawing machine 8, carry out drawing-off, can avoid cutting knife to divide tangent plane to cause damage to PET flat filament.
4) under 80～95 ℃ of conditions, heat-shaping is carried out on the warm-up mill surface that utilizes water bath heating device 9 to make PET flat filament 19 be close to inductive heating seven roll-type setting rollers 11, again through five roller drawing machine 10 drawing-offs, under drafting force effect, under 150～210 ℃ of conditions, PET flat filament 19 again enters in water bath heating device 9 and heats laxation shaping.
5), batching apparatus 13 cooling through cooling device 12 carries out rolling, and making width is 2～6mm, and thickness is the flat filament finished silk of 15～60 μ m.The single wire fracture intensity of flat filament reaches 55MPa, and extension at break is less than 30%, and setting roller temperature is 180～205 ℃.
Claims (3)
1. a device that utilizes waste PET to produce flat filament, by double screw extruder, filter, measuring pump, PET flat filament nose assembly, cooling device, minute roll dies, drawing machine, water bath heating device, inductive heating setting roller, batching apparatus, formed successively, it is characterized in that, in PET flat filament special had, be provided with filter sand, runner, flow distribution plate, mouthful mould from top to bottom; PET flat filament special had feeding mouth end face is provided with runner hole and flat filament hole, and flat filament hole is positioned at runner hole, and runner hole is in end face circular array; Water bath heating device is comprised of upper and lower two water tanks, by pipeline, connect, upper water box two ends are respectively equipped with pulley, lower header bottom is provided with intake-outlet, water circulating pump, heating rod, thermocouple, water circulating pump, heating rod, thermocouple connect respectively power supply, water circulating pump two-port passes into respectively upper and lower two water tanks, carries out hot and cold water circulation.
2. the device that utilizes waste PET to produce flat filament as claimed in claim 1, is characterized in that: described inductive heating setting roller selects inductive heating seven roll-type setting rollers.
3. the device that utilizes waste PET to produce flat filament as claimed in claim 1 or 2, is characterized in that: the preferred slotted eye in runner hole, the preferred rectangular opening in flat filament hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320374952.0U CN203393282U (en) | 2013-06-27 | 2013-06-27 | Device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320374952.0U CN203393282U (en) | 2013-06-27 | 2013-06-27 | Device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate) |
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| Publication Number | Publication Date |
|---|---|
| CN203393282U true CN203393282U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320374952.0U Expired - Lifetime CN203393282U (en) | 2013-06-27 | 2013-06-27 | Device for producing ribbon-like filaments by utilizing waste PET (Polyethylene Glycol Terephthalate) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480549A (en) * | 2014-12-19 | 2015-04-01 | 无锡兰华纺织机械有限公司 | Pitch carbon fiber precursor spinning device |
| CN108312462A (en) * | 2018-04-16 | 2018-07-24 | 盐城市亿德塑料包装有限公司 | A kind of Polywoven Bag high-speed wire-drawing device |
-
2013
- 2013-06-27 CN CN201320374952.0U patent/CN203393282U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480549A (en) * | 2014-12-19 | 2015-04-01 | 无锡兰华纺织机械有限公司 | Pitch carbon fiber precursor spinning device |
| CN108312462A (en) * | 2018-04-16 | 2018-07-24 | 盐城市亿德塑料包装有限公司 | A kind of Polywoven Bag high-speed wire-drawing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |