CN201272840Y - Spinning device for dacron short fiber used for filling - Google Patents

Abstract

A spinning device of polyester staple fiber for filling relates to a production facility of polyester staple fiber, which includes a spinneret, a plurality of nozzles and a blowing device, wherein the pluralities of nozzles are disposed at the lower portion of the spinneret, and the blowing device is circularly arranged on a nozzle spinning path. A plurality of blowing ports of the blowing device are distributed on the periphery perpendicular to the spinning path, the distance from the blowing ports to the nozzles is 15cm to 25cm, and the blowing ports incline downwards. The spinning device moves up a coagulation point of fiber, the fiber is coagulated at a higher temperature area, thereby enlarging the size of fiber pores, increasing the uniformity and the stretch rate of the fiber, improving the natural and maximum draw ratios of reeled silk, and increasing the elastic recovery percentage of finished fiber. For avoiding interference among horizontal radial centripetal winds and generating flows toward the nozzles, the blowing ports tilt downwards about 5degrees to 25degrees, and the cooling wind moves downwards in an integral inverted cone shape without generating upward flows interfering silk outlets of the nozzles, thereby guaranteeing regular spinning.

Description

The device for spinning of polyester staple fibers for filling

Technical field

The utility model relates to a kind of production equipment of terylene short fiber, relates in particular to the improvement of device for spinning in the equipment.

Background technology

The polyester staple fiber of filling usefulness needs elasticity and response rate preferably, in use has high elasticity, indeformable so that be filled thing.Elasticity and response rate are the indexs that needs strict control in the polyester staple fiber production process, and polyester staple fiber is hollow structure on microcosmic, and the fiber of hollow structure makes fiber have elasticity; Response rate needs material itself to have certain elastic deformability on the one hand, simultaneously the frictional force between the fiber is also had requirement, excessive resilience, the answer index of also can having influence on of skin-friction force between the fiber.Fiber surface fineness index can reduce the frictional force between the fiber, and the uniformity of the mesopore of fiber hollow structure and the size of mesopore can improve the curling processing of elastic deformability and road, the back back resilience of fiber.

At present in the spinning process of terylene short fiber production process, distance is bigger between the blowing mouth of spinning equipment and the nozzle filament mouth, this set scheme is based on such consideration, the fiber of nozzle filament mouth is a molten state, blowing may cause with the fiber of mesopore when the moulding, deform owing to wind action makes fiber, cause phenomenons such as hole obturation, shape irregularity.At horizontal radial entad under the wind effect, really may there be such problem, therefore in the prior art, be provided with whole blowing device far away apart from nozzle, like this, horizontal radial interferes the mixed and disorderly air-flow towards nozzle that occurs upwards just can not exert an influence to the moulding of spray silk mutually when entad wind is worked.But this scheme makes that the mesopore of fiber diminishes, thereby influences the elasticity of fiber, finished fiber elastic recovery rate variance when condensing moulding because the freezing point of fiber is far away apart from filament mouth under the gravity effect.

The utility model content

The utility model provides a kind of change cooled and solidified point position at above problem, moves on the freezing point more near filament mouth, thereby can make the device for spinning of the bigger polyester staple fibers for filling of fiber mesopore shaping size.

The technical solution of the utility model is: comprise spinning head, be arranged on the plurality of nozzles of spinning head bottom, around the blowing device that is arranged on the nozzle spray the Silk Road footpath, some blowing mouths of described blowing device are laid on the circumference perpendicular to spray the Silk Road footpath, blowing mouth and injector spacing are from being 15～25cm, and blowing mouth is downward-sloping.

Described blowing mouth angle of inclination is 5～25 °.

The utility model has improved the height of blowing device air outlet, has shortened the distance between air outlet and the nozzle in other words, and this makes and moves in the outlet of freezing point with respect to nozzle of fiber.The fiber of nozzle ejection has mesopore, makes its typing by cooling, and the fiber of plasticity attitude has experienced one section long stroke and entered condensing zone again, and in stroke, mesopore can dwindle owing to mecystasis, the gravity factor of material; And stroke is long more, and the uniformity of mesopore condensation is relatively just poor more.Blowing mouth and injector spacing are from being that 15～25cm makes on the freezing point of fiber and moves, promptly begin condensation in the higher temperature district, make that the fiber intermediate pore size is big, uniformity improves, increased the extensibility of fiber, improve the nature and the maximal draw ratio of undrawn yarn, improved the elastic recovery rate of finished fiber.For avoid horizontal radial entad wind interfere each other, produce air-flow towards nozzle, the utility model is with downward-sloping 5～25 ° of blowing mouth, make cooling air integral body be back taper, move downward, can not produce the air-flow that generation is disturbed to the nozzle filament mouth upwards, guaranteed that wire vent is regular.

Description of drawings

Fig. 1 is the structural representation of device for spinning in the utility model equipment

1 is air inlet duct among the figure, the 2nd, blowing device, the 3rd, shower nozzle, the 4th, nozzle, the 5th, fiber, the 6th, mesopore, the 7th, blowing mouth, the 8th, ventilating duct, among the figure H be blowing mouth and injector spacing from, M is the angle of inclination.

Fig. 2 be among Fig. 1 A to view

The specific embodiment

The utility model as shown in Figure 1, 2, comprise spinning head 3, be arranged on the plurality of nozzles 4 of spinning head 3 bottoms, around the blowing device 2 that is arranged on the nozzle 4 spray the Silk Roads footpath, blowing device 2 integral body are annular, be provided with several blowing mouths 7 at annular inner surface and be laid on the circumference perpendicular to spray the Silk Road footpath, 4 at blowing mouth 7 and nozzle are 15～25cm apart from H.In blowing device 2 ring walls ventilating duct 8 is arranged, blowing device 2 is by an air inlet duct 1 air feed, and air inlet duct 1, ventilating duct 8, blowing mouth 7 are connected.

Air outlet 7 is downward-sloping, and angle of inclination M is 5～25 °.

Claims (2)

1, the device for spinning of polyester staple fibers for filling, comprise spinning head, be arranged on the plurality of nozzles of spinning head bottom, around the blowing device that is arranged on the nozzle spray the Silk Road footpath, it is characterized in that, some blowing mouths of described blowing device are laid on the circumference perpendicular to spray the Silk Road footpath, blowing mouth and injector spacing are from being 15～25cm, and blowing mouth is downward-sloping.

2, the device for spinning of polyester staple fibers for filling according to claim 1 is characterized in that, described blowing mouth angle of inclination is 5～25 °.

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