Abstract

In a spinning-drawing-winding device and a combined machine for industrial bio-based polyamide, according to a traveling direction of a tow, two adjacent rotational directions among a rotational direction of the tow winding through the first pair of drawing hot rollers, a rotational direction of the tow winding through the second pair of drawing hot rollers, a rotational direction of the tow winding through the third pair of drawing hot rollers, a rotational direction of the tow winding through the fourth pair of drawing hot rollers are in opposite to spin an industrial bio-based polyamide filament of 55 dtex-2222 dtex.

IPC Classes  ?

• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/084 - Heating filaments, threads or the like, leaving the spinnerettes
• D01D 10/04 - Supporting filaments or the like during their treatment

Abstract

A spinning-drawing-winding device for industrial polylactic-acid fiber includes a double-surface oiling mechanism, a filament shearing-suctioning device, a pre-interlacer and a splitting filament roller disposed in sequence according to a production process; a drawing-winding device cooperates with a spinning device, a tow passing from the spinning device through the double-surface oiling mechanism, the filament shearing-suctioning device, and the pre-interlacer in sequence until the tow is conveyed to the splitting filament roller; the drawing-winding device and the spinning device are configured as a parallel configuration, so that the tow between the spinning device and the splitting filament roller are arranged in a vertical direction and is tangential to the splitting filament roller, and therefore the tow is without deflection, thereby avoiding damaging the tow due to a friction caused by a higher deflection.

IPC Classes  ?

• D01D 7/00 - Collecting the newly-spun products
• D01D 5/08 - Melt-spinning methods
• D01D 10/02 - Heat treatment
• D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
• D01F 11/00 - Chemical after-treatment of man-made filaments or the like during manufacture

Abstract

Disclosed are an bio-based polyamide spinning, drafting and winding device for industrial use, and a combined machine. In a fiber tow advancing direction, among a rotation direction of a first pair of drafting hot rollers (1600), a rotation direction of a second pair of drafting hot rollers (1700), a rotation direction of a third pair of drafting hot rollers (1800), and a rotation direction of a fourth pair of drafting hot rollers (1900), two adjacent rotation directions are oppositely arranged, so as to spin the 55dtex-2222dtex bio-based polyamide wire for industry use.

IPC Classes  ?

• D01D 13/00 - Complete machines for producing man-made threads
• D01D 1/04 - Melting filament-forming substances
• D01D 4/00 - Spinnerette packsCleaning thereof

Abstract

The present application discloses a screw extruder, and a fiber spinning, drafting and winding combined machine for polylactic acid industry. The screw extruder comprises a screw sleeve (1-a) and a screw rod (1-b). The screw rod (1-b) comprises a feeding section (1-5d), a compression section, and a metering section (1-5a). The screw sleeve (1-a) comprises a gas collection chamber (1-3g) and an exhaust hole (1-3d). The gas collection chamber (1-3g) is formed on the inner wall of the junction of the compression section and the metering section (1-5a). Gas is collected by the gas collection chamber (1-3g), and under the control of an opening and closing valve (1-3), the gas generated by hydrolysis is intensively exhausted from the exhaust hole (1-3d), so that the gas is removed in time when melt enters the metering section (1-5a), thereby overcoming the serious adverse effect of the gas generated by hydrolysis on spinning, improving the unfavorable situation of end breakage, and ensuring the subsequent spinning quality and spinning efficiency.

IPC Classes  ?

• D01D 1/04 - Melting filament-forming substances
• B29C 48/76 - Venting meansDegassing means
• B29C 45/63 - Venting or degassing means

Abstract

Disclosed herein are a fiber-spinning drafting and winding apparatus and combined machine for the polylactic acid industry. The apparatus comprises a double-sided oiling mechanism (11), a yarn cutting and suction device (12), a pre-interlacing device (13) and a yarn separating roller (14), which are sequentially arranged according to a production process. The drafting and winding apparatus (200) cooperates with a spinning apparatus (100). A tow from the spinning apparatus (100) sequentially passes through the double-sided oiling mechanism (11), the yarn cutting and suction device (12) and the pre-interlacing device (13) until same is conveyed to the yarn separating roller (14). The drafting and winding apparatus (200) and the spinning apparatus (100) are configured in parallel, such that the tow between the spinning apparatus (100) and the yarn separating roller (14) is arranged vertically and at a tangent to the yarn separating roller (14), thus the tow does not deflect, thereby avoiding damage to the tow caused by friction due to high deflection.

IPC Classes  ?

• D01D 13/00 - Complete machines for producing man-made threads
• D01D 5/16 - Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
• D01D 10/02 - Heat treatment
• D01D 1/04 - Melting filament-forming substances
• D01D 4/00 - Spinnerette packsCleaning thereof

Abstract

Disclosed herein are a melt pipeline and an industrial bio-based polyamide spinning, drafting, and winding device. One end of a main melt pipe (310) is connected to a screw extruder (100), and the other end of the main melt pipe (310) is in communication with one end of each of a plurality of branch melt pipes (320); the other end of each of the plurality of branch melt pipes (320) is respectively connected to a corresponding spinning box (400); a melt pressure measuring element (340) of the melt pipeline is mounted on the main melt pipe (310), so as to ensure that the melt is conveyed to a pump inlet of each spinning station at equal pressure drops and equal dwell times, so that the retention time, temperature, shear rate, and pressure distribution of the melt travelling to each spinning station are uniform and consistent, thus facilitating control of the spinning quality and the spinning speed.

IPC Classes  ?

• D01D 13/00 - Complete machines for producing man-made threads
• D01D 5/08 - Melt-spinning methods

Abstract

A spinning and take-up device, comprising a first spinning reel (3), rack (9), mounting base (8), lifting mechanism (5), lifting base (6), second spinning reel (4) and a winding head (10). The mounting base is fixed on an upper part of the rack. The lifting mechanism is mounted on the mounting base. The first spinning reel is situated close to a lower end of the lifting mechanism. The lifting base is fixed on the lifting mechanism. The second spinning reel is fixed on the lifting base. When the lifting base is at its lowest position, the second spinning reel is behind the first spinning reel. The winding head is situated below the second spinning reel. By combining the separate operations of drawing and winding units into a single level, the overall height of the device and the space occupied thereby is reduced, lowering infrastructure costs. Further, the threading process becomes a one-person operation with a dramatically simplified operating procedure, reduced threading time, and less waste yarn, improving quality and efficiency. Moreover, less compressed air is required during the threading process and fewer staff may be deployed at the production line, lowering the labor cost of an enterprise.

IPC Classes  ?

• D01D 11/00 - Other features of manufacture
• D01D 13/02 - Elements of machines in combination

Abstract

Disclosed is an apparatus for drawing and winding POY filament yarn. The drawing and winding apparatus comprises: a yarn cutting and suctioning apparatus, a pre-interlacing device, a first yarn guide plate, a second yarn guide plate, a lifting mechanism, a lifting seat, a machine frame and a winder, wherein the yarn cutting and suctioning apparatus, the pre-interlacing device and the first yarn guide plate are provided in succession on one side of the machine frame based on the direction of travel of a tow; the lifting mechanism is provided on the machine frame, the lifting seat is linked to the lifting mechanism, and the lifting seat makes a reciprocal movement in a vertical direction under the drive of the lifting mechanism; the second yarn guide plates are two in number and are provided horizontally on the lifting seat; the winder is provided below the second yarn guide plates; after passing through the yarn cutting and suctioning apparatus, the pre-interlacing device and the first yarn guide plate, the tow is divided into two bundles respectively reeled on the two second yarn guide plates and then entering the winder to be wound. The present invention simplifies the structure and also increases the quality of the yarn, and enables more spinning station equipment to be installed in the same factory, increasing production capacity and reducing engineering construction costs.

IPC Classes  ?

• D01D 5/12 - Stretch-spinning methods
• D01D 13/00 - Complete machines for producing man-made threads
• C08G 63/00 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

Abstract

The present utility model discloses a drawing and winding system for fully drawn yarns. The system comprises a heating and drawing component for heating, drawing and shaping yarn bundles. The heating and drawing component comprises at least one low-temperature hot roller for heating the yarn bundles and at least one high-temperature hot roller for drawing and shaping the yarn bundles. The low-temperature hot roller and the high-temperature hot roller are sequentially distributed on a same plane along a walking direction of the yarn bundle, and axes of the low-temperature hot roller and the high-temperature hot roller are perpendicular to the plane. The yarn bundles are sequentially wound on the low-temperature hot roller and the high-temperature hot roller in an internal common tangent mode. Rotation directions of two adjacent hot rollers are reverse on a route of the yarn bundles. An oiling component, a yarn shearing and sucking component, a pre-meshing component, a drawing component and a main meshing component are sequentially and integrally mounted on a mounting panel, so that the height of the mounting panel can be greatly reduced, and the total height of the device matches that of an operator; only one operator is needed to complete a repiece operation of spinning, and an operation steel platform used for the operator to stand on is not required.

IPC Classes  ?

• D01D 13/02 - Elements of machines in combination
• D01D 7/00 - Collecting the newly-spun products
• D01D 5/16 - Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins

Abstract

A twin type filament drafting and winding apparatus. The apparatus comprises a longitudinal upright framework (1), a drafting apparatus (2) longitudinally disposed on an upper portion of one side of the framework, and a winding apparatus (3) longitudinally disposed on a lower portion of the same side of the framework. The drafting apparatus (2) is a preformed part integrated by multiple drafting parts and mounted on a mounting panel (21), and has a filament outlet facing downwards. The winding apparatus (3) comprises two synchronously driven winding heads (31), and the two synchronously driven winding heads (31) are longitudinally disposed on two sides below the filament outlet of the drafting apparatus (2). In the apparatus, the utilization rate of space above the winding apparatus is increased, and the occupied area of the device is deceased.

IPC Classes  ?

• D01D 13/00 - Complete machines for producing man-made threads

Abstract

A control method for a turntable (5) transmission device of a coiler comprises: calculating the diameter of a spinning cake (20) and the angle position of a bobbin collet shafts (6.1,6.2) on the turntable (5) at any time based on the functional relation between the spin coiling time and the angle position of the turntable (5), and then timingly driving the turntable (5) by the program control device to rotate with the increasing of the spinning cake (20). The turntable (5) transmission device comprises a frame (8), the turntable transmission device, the bobbin collet shafts (6.1,6.2), a paper coilers (7.1,7.2), a yarn pressing roller (4) and a transverse move device (3). The coiling parameters can be determined according to the time variety to control the rotation of turntable (5) simply such that reliable and stable spinning coiling system can be obtained with low location error of turntable (5).

IPC Classes  ?

• B65H 67/048 - Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
• B65H 54/52 - Drive contact pressure control, e.g. pressing arrangements

Abstract

A method for producing terylene fiber using polyester waste is disclosed. Firstly, dried polyester waste is sent into a screw extruder, then is melt and extruded to be polyester melt. Whereafter, the melt is filtrated twice to remove impurities. Then macromolecule polymerization reaction is taken place in the polyester melt to homogenize the molecular weight of macromoleclar polymer and to increase the viscosity of the polyester. Then the melt with increased viscosity is finely filtrated using melt precision filter. Whereafter, the melt is sent into a spinning box to execute metering spinning, then is cooled and solidified to be filaments. Finally, the filaments are wound according to various process requirements. The method can increase the quality of regenerated polyester spinning melt. The regenerated polyester melt has less impurities and homogenous viscosity after multiple filtrating. The fiber product has advantages of less end breakage rate, high full-bobbin rate, high finished product rate and less wastage.

IPC Classes  ?

• D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
• D01D 1/10 - Filtering or de-aerating the spinning solution or melt