Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
  • D01D5/00—Formation of filaments, threads, or the like
  • D01D5/12—Stretch-spinning methods
  • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H57/00—Guides for filamentary materials; Supports therefor
  • B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H57/00—Guides for filamentary materials; Supports therefor
  • B65H57/28—Reciprocating or oscillating guides
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
  • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
  • D01D10/04—Supporting filaments or the like during their treatment
  • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
  • D01D13/00—Complete machines for producing artificial threads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/31—Textiles threads or artificial strands of filaments
  • B65H2701/313—Synthetic polymer threads

Definitions

• the invention relates to a device for drawing and drawing a synthetic yarn sheet in a melt spinning process according to the preamble of claim 1.
• the freshly extruded threads are drawn off and stretched after cooling through several godets, before the threads are wound into bobbins at the end of the process.
• the threads are preferably heated in order to obtain as stretched as possible a plastic state of the thread material.
• the threads are this done with direct contact on the circumference of the godets to heat the thread material to a predetermined stretching temperature.
• Such a device for drawing off and drawing a synthetic yarn sheet is known, for example, from WO 2011/009497 A1.
• the invention was also not suggested by the known device from DE 101 14 368 AI. So it is common in so-called Klemmdivider- in texturing machines oscillating the thread before hitting a conveyor roller transversely to the thread running back and forth, so that constantly changes a casserole of the thread on the circumference of the conveyor roller. Thus, a homogenization of the surface wear of the feed roller is achieved.
• the invention has the particular advantage that the threads of the yarn sheet are always performed with a stationary yarn guide. Only for optional adjustment of a yarn feed at the periphery of the yarn
• the yarn guide strip and / or the yarn guides are displaceably formed in the axial direction of the godets.
• the adjustment of the thread guide bar or the thread guide can be performed, for example, in conventional process interruptions, for example, to clean the spinnerets or a yarn breakage. In that regard, a stable threadline for stripping and hiding on the circumference of the godets is guaranteed.
• the threads can optionally be guided in several jacket zones on the circumference of the godets.
• the operating times are extended in which the threads can be guided and treated without significant impairment by impurities on the circumference of the godets.
• the development of the invention is preferably carried out in which the thread guide strip and / or the thread guides are each adjustable back and forth between an outer position and an inner position.
• An adjustment path extending between the outer position of the thread guide strip or thread guide and the inner position of the thread guide strip or thread guide is preferably carried out smaller than a distance between two adjacent thread guides. This ensures that there is no overlap of the thread traces on the circumference of the godets.
• the thread guide strip is preferably held on a carrier plate, which is arranged at a free end of a displaceable piston. is net.
• the yarn sheet can be performed during an adjustment cycle by moving the piston.
• the piston is guided for adjusting the support plate in a housing and adjustable between the outer position and the inner position.
• the adjustment is preferably carried out according to the embodiment of the invention, in which the piston is guided with an end collar in a stepped bore and is stretched between a spring and a formed at the end of the stepped bore pressure chamber.
• the pressure chamber can be connected via an air connection and a control valve with a compressed air source.
• control valve is coupled to a control device, by means of which the pressure chamber is vented or vented during a process interruption or after a predetermined time interval.
• the development of the invention is preferably carried out in which a thread rapier for separating and Collecting the threads of Fadenschnar is held on the support plate.
• a thread rapier for separating and Collecting the threads of Fadenschnar is held on the support plate.
• the yarn sheet at each position of the yarn guide strip under the same conditions in the event of a yarn break collect and vacuum.
• To adjust the thread guide is provided to arrange the thread guide on a shoe, which is guided in a sliding guide on the thread guide bar.
• the thread guides can also change the thread feed alternatively in a stationary yarn guide.
• both systems cooperate, so that both the adjustment of the thread guide and the adjustment of the thread guide bar can be used to change the thread feed on the circumference of the godets.
• This alternative is preferably chosen with larger thread spacings of adjacent threads, so that an area on the circumference of the godets between two threads by multiple staggered yarn feeds is available.
• Fig. 1 shows schematically a front view of a first embodiment of the device according to the invention
• Fig. 2 shows schematically a side view of the embodiment in the region of the inlet side of the godets
• FIG. 3.2 schematically shows a top view of the thread guide strip of the exemplary embodiment from FIG. 1 in a plurality of operating situations.
• Fig. 4 shows schematically a front view of another embodiment of the device according to the invention
• FIG. 5.2 schematically shows a cross-sectional view in the region above the
• Thread guide bar in different operating situations
• FIGS. 1 to 3 show a first exemplary embodiment of the device according to the invention for drawing off and drawing a synthetic yarn bundle in several views, as would be used, for example, in a melt spinning device.
• FIG. 1 shows the device in a front view, in FIG. 2 in a side view in the area of the thread feed, and in FIGS. 3.1 and 3.2 in a plan view of the thread feed guide. Unless expressly made to any of the figures, the following description applies to all figures.
• Fig. 1 is a schematic front view of the embodiment of the device according to the invention in an operating situation for stripping and drawing a yarn sheet 6 is shown.
• the embodiment has several godets 4.1 to 4.6, which are held on a mounting wall 1.
• the godets 4.1 to 4.6 protrude with their respectively driven godet compartments 5.1 to 5.6 on a front side of the mounting wall 1.
• the godet sheaths 5.1 to 5.6 are designed differently in their diameter and their nature.
• an unheated galette coats 5.1 of the godet 4.1 is provided, which has a smaller diameter compared to the adjacent godet shrouds 5.2 of the godet 4.2.
• the godets 4.2 to 4.5 are designed with heated godet sheaths 5.2 to 5.5. Usually, such heated godets are kept isolated in a godet box. To stretch or relax the threads, any speed differences between the individual godets 4.1 to 4.6 can be set.
• the godet 4.6 is arranged with a non-heated giletsmantel 5.6.
• the arrangement, distribution and number of godets shown in Fig. 1 is exemplary.
• Essential for the invention is the feeding of the yarn sheet 6, which takes place in this embodiment on the inlet side 10 by a thread guide strip 2.
• the thread guide strip 2 has to each thread of the yarn sheet 6 each have a separate yarn guide.
• To explain the thread guide bar 2 is taken in addition to the Fig. 2 and Figs. 3.1 and 3.2 reference.
• a total of four yarn guides 3.1 to 3.4 are held on an elongate sliding shoe 7.
• the yarn guides 3.1 to 3.4 are U-shaped and formed by a respective ceramic insert 30.
• the sliding block 7 is held in a sliding guide 8 on the thread guide strip 2 and can be adjusted between an inner stop 9.1 and an outer stop 9.2 in the axial direction of the godet 4.1 back and forth.
• Fig. 2 and Fig. 3.1 the operating situation is shown, in which the sliding block 7 rests against the outer stop 9.2, so that the yarn guides are 3.1 to 3.4 in an outer position. In this position of the thread guides 3.1 to 3.4, the threads of the yarn sheet 6 on the supply side 10 are fed directly to the following godet 4.1. The sliding block 7 remains in this position, so that the thread production takes place with the selected thread feed to the godets 4.1 to 4.6.
• the shoe 7 can be adjusted by a manual adjustment in the direction of the inner stop 9.1 out.
• FIG. 3.2 the yarn guides 3.1 to 3.4 are in an inner position relative to the godet 4.1.
• the adjustment path extending between the outer position of the yarn guides and the inner position of the yarn guides is indicated in FIGS. 2, 3.1 and 3.2 by the designation V.
• an educated between the adjacent yarn guides 3.1 and 3.2 distance is shown and marked with the letter B.
• the adjustment path V is made smaller than the distance B between two adjacent yarn guides 3.1 and 3.2.
• the adjustment path V is preferably made half as large as the distance B between two adjacent yarn guides 3.1 and 3.2.
• the thread spacings between the yarn guides 3.1 to 3.4 is identical in this embodiment.
• the yarn feed in the axial direction of the godets is changed by half the yarn spacing.
• FIGS. 4, 5.1 and 5.2 show a further exemplary embodiment of the device according to the invention for drawing off and stretching a synthetic yarn sheet in several views.
• Fig. 4 shows schematically a front view of the embodiment and in Fig. 5.1 and 5.2 is shown in each case a cross section on the feed side of a carrier plate with attached thread guide bar.
• a support plate 11 is movably held on the inlet side 10 on a mounting wall 1.
• a thread-pulling device 12 is arranged on the carrier plate 11, which device has at least one suction device 13 and a yarn collector 14.
• Fadenraff devices 12 are required to effect yarn separation and collection of the yarn sheet at a yarn breakage of one of the threads within the yarn sheet so that the continuously extruded from the melt spinning yarns threads can be performed without interruption on the suction 13 to a waste container.
• a thread guide strip 2 which has a thread guide to each thread of the yarn sheet 6.
• the design of the thread guide strip 2 will be explained in more detail with reference to FIGS. 5.1 and 5.2.
• the carrier plate 11 are assigned to the mounting wall 1 a plurality of godets 4.1 to 4.6, which are held in a staggered in this embodiment arrangement on the mounting wall 1.
• the godets 4.1 to 4.6 are identical to the embodiment of FIG. 1 executed and each project with a rotating godet casing 5.1 to 5.6 on a front side of the mounting wall 1 forth.
• the number of unheated and the number of heated godets can vary. So it is also possible to first assign a heated galette on the inlet side 10 of the thread guide bar 12.
• the godet system and the godet assembly is arbitrary regardless of the invention.
• the yarn guide bar 2 can be adjusted via the movable carrier plate 11 into an outer position or an inner position on the mounting wall 1.
• FIG. 5.1 shows a cross-sectional view of the carrier plate 11 on the mounting wall 1 with the thread guide strip 2 attached.
• the thread guide strip 2 has a total of four thread guides 3.1 to 3.4, which are each formed by a U-shaped ceramic insert 30.
• the number of thread guides on the thread guide strip 2 depends on the number of threads of the guided yarn sheet 6. This is exemplary in this embodiment.
• the thread guide strip 2 is cantilevered to the support plate 11.
• the support plate 11 is connected via a connecting means 16 with the piston 15.
• the piston 15 is slidably guided within a stepped bore 18 of a housing 19, wherein the piston 15 at the opposite end to the support plate 11 has an end collar 17 of increased diameter.
• the end collar 17 of the piston 15 can be within the study fenbohrung 18 between an outer stop 9.2 and an inner stop 9.1 back and forth.
• a pressure chamber 23 is formed between a cover 20 which closes off the stepped bore 18 and the front end on the end collar 17.
• the pressure chamber 23 is connected via a compressed air connection 21 and a line 22 to a control valve 27.
• the control valve 27 is coupled to a compressed air source 31, wherein the control valve 27 via a control device 28 for loading or venting of the pressure chamber 23 is controllable.
• a control device 28 for loading or venting of the pressure chamber 23 is controllable.
• the pressure chamber 23 is vented, so that the piston 15 rests with the end collar 17 on the outer stop 9.2.
• the thread guide strip 2 is held in an outer position to feed the yarn sheet 6 to the following godets 4.1 to 4. 6.
• a spring 24 is arranged on the circumference of the piston 15, which is stretched between the housing 1 and the end collar 17.
• the piston 15 can be displaced by the spring 24 from the outer stop 9.2 towards the inner stop 9.1. This situation is shown in FIG. 5.2.
• the thread guide strip shown in FIG. 5.1 could be replaced by the version of the thread guide strip shown in FIG. 3.1.
• a total of four positions of the yarn guide can be optionally set to change the thread feed to the godets.
• the structural design of the thread guide strip and the thread guide is exemplary. It is essential for the invention that the thread feed to the godets on an inlet side in larger time periods, such as may be determined by maintenance cycles or other process interruptions to change.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
• Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
• Tension Adjustment In Filamentary Materials (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=53267318

Family Applications (1)

Country Status (4)

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Citations (8)

Family Cites Families (12)

• 2014
  • 2014-05-21 DE DE102014007454.4A patent/DE102014007454A1/de not_active Withdrawn
• 2015
  • 2015-05-11 WO PCT/EP2015/060327 patent/WO2015176982A1/de active Application Filing
  • 2015-05-11 JP JP2016568872A patent/JP6566969B2/ja active Active
  • 2015-05-11 DE DE112015002341.0T patent/DE112015002341A5/de not_active Withdrawn
  • 2015-05-11 CN CN201580026244.XA patent/CN106460234B/zh active Active

Patent Citations (8)

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