EP4352287A1 - Vorrichtung zum kühlen eines laufenden fadens - Google Patents
Vorrichtung zum kühlen eines laufenden fadensInfo
- Publication number
- EP4352287A1 EP4352287A1 EP22732476.1A EP22732476A EP4352287A1 EP 4352287 A1 EP4352287 A1 EP 4352287A1 EP 22732476 A EP22732476 A EP 22732476A EP 4352287 A1 EP4352287 A1 EP 4352287A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- groove
- thread
- outlet tube
- heat sink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
-
- 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
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
Definitions
- the invention relates to a device for cooling a running thread according to the preamble of claim 1.
- a generic device for cooling a running thread is known from WO 2018/065123 A1.
- the synthetic threads produced in a melt spinning process which have a very smooth structure, are crimped in a further processing step. Such crimps are produced by twisting the multifilament threads and thermal treatment with heating and cooling.
- the thread To cool the thread, it is customary to guide the thread over a cooled, metallic surface in the form of an elongated cooling rail. For intensification, the thread can also be wetted with a cooling liquid.
- a cooling liquid Such a device for cooling a running thread is disclosed in WO 2018/065123 A1.
- the thread is guided by an elongated cooling groove.
- a fluid connection is formed on the inlet side of the cooling groove, which opens directly into the bottom of the cooling groove with a dosing bore.
- the amount of fluid metered onto the thread is essentially dependent on the opening cross section of the metering bore in the bottom of the cooling groove.
- the thread speed must also be taken into account, especially with small dosing quantities, in order to avoid the dosing bore being sucked empty by capillary effects.
- This object of the invention is achieved according to the invention in that the fluid connection is arranged on a groove wall of the heat sink above a groove base and transversely to the cooling groove.
- the invention is characterized in that the supply of cooling liquid reaches the bottom of the cooling groove unaffected by the thread. Influencing the metering of the cooling liquid by a thread speed of the thread or a thickness of the thread is avoided.
- the cooling liquid can be dosed independently of an outlet cross-section of the filament end. Since relatively large outlet cross-sections can be selected for the fluid connection.
- the fluid connection is designed with an outlet tube in the area of a thread inlet, with the outlet tube penetrating the groove wall of the heat sink up to the cooling groove.
- sol can generate a strong cooling effect by evaporating the coolant.
- residual liquids can advantageously be avoided in this way.
- the outlet tube can protrude with an outlet end into the cooling groove.
- the development of the invention is particularly advantageous in which an outlet end of the outlet tube terminates flush with an inner contour of the groove wall above the cooling groove. This allows the cooling liquid to escape from the outlet tube and is guided to the bottom of the groove via the wall of the groove. It is possible here to influence the distribution of the coolant by means of a special shape of the groove wall in the mouth area of the outlet tube. Since the heat sink is heated particularly in the inlet area of the heat sink by the heated thread, the development of the invention is particularly advantageous in which the outlet tube is made of plastic and is held by a thermal insulating holder in the groove wall of the heat sink. In this way, the supply of cooling liquid and in particular the cooling liquid temperature remains at a constant level and is independent of the heating effects caused by the running thread.
- a seal is arranged within the groove wall between the outlet end of the outlet tube and the insulating holder on the circumference of the outlet tube.
- a connecting body is connected to an inlet end of the outlet tube that protrudes outside of the cooling body, the connecting body having a hose connection.
- outlet tube and the connection body are formed in one piece by an L-shaped plug-in connection. This is easy to assemble and disassemble and favors thermal insulation.
- the plug connection is preferably held on a housing of the heat sink by a clamp holder. In this way, complex screw connections for fastening the fluid connection can be avoided.
- the housing is preferably formed by a profile that is open on one side, in order to form an insertion slot for introducing the thread at the start of the process through a side plate of the housing with the profile. Time-consuming threading at the start of the process can thus be avoided.
- the development of the invention is particularly advantageous in which a ceramic insert is arranged downstream of the fluid connection within the cooling groove in the groove base in the direction of thread travel, which ceramic insert forms a corrugated groove base. like that the thread should be guided with as little friction as possible in order to be able to use dynamic effects such as twisting the thread for wetting.
- the grooves of the ceramic insert can fill with cooling liquid, so that continuous wetting prevents the cooling liquid from evaporating.
- the device according to the invention for cooling a running thread enables intensive cooling of a running thread under constant conditions.
- Fig. 1 shows schematically a side view of an embodiment of the device according to the invention for cooling a heated thread
- Fig. 2 shows schematically a longitudinal sectional view of the embodiment from Fig. 1
- Fig. 3 shows schematically a cross-sectional view of an embodiment from Fig. 1
- a first embodiment is shown schematically in several views.
- Fig. 1 shows a side view
- Fig. 2 shows a longitudinal sectional view
- Fig. 3 shows a cross-sectional view.
- the embodiment with an elongated housing 15 is Darge provides, which extends between a thread inlet 8 and a thread outlet 9.
- the thread inlet 8 is on the right-hand side and the thread outlet 9 is on the left-hand side.
- the longitudinal sectional view of the thread inlet 8 is shown on the left side and the thread outlet 9 on the right side.
- a fluid connection 6 is shown in FIG. 1 on the housing 15 in the area of the thread inlet 8 .
- the fluid connection 6 is arranged on a longitudinal side of the housing 15 .
- the fluid connection 6 is connected to a dosing device 5 .
- the dosing device Device 5 comprises at least one dosing pump 5.1 and a tank 5.2, which contains a coolant.
- the structure of the fluid connection 6 is explained in more detail below.
- FIG. 2 a heat sink 1 is arranged inside the housing 15.
- FIG. 1 The elongate heat sink 1 has an open cooling groove 2 on its upper side, which extends to the front ends of the heat sink 1 .
- the cooling groove 2 has a curved groove base 4 .
- the fluid connection opens with an outlet end 7.1 in a groove wall 3 of the cooling groove 2.
- the fluid connection 6 which is not shown in detail in FIG. 2, is explained in more detail below.
- the fluid connection 6 thus opens out on the groove wall 3 of the heat sink 1 above a groove bottom 4 and transversely to the cooling groove 2.
- a ceramic insert 18 in the bottom of the groove 4 is arranged downstream of the outlet end 7.1 of the fluid connection 6 in the direction of yarn travel.
- the ceramic insert 18 is embedded in the bottom of the groove and, as an extension of the bottom of the groove 4, forms a corrugated bottom surface 4.1 of the groove.
- another ceramic insert 18 is embedded in the bottom 4 of the cooling groove 2.
- the ceramic insert 18 forms a corrugated groove base surface 4.1 in the groove base 4.
- FIG. 3 shows a cross-sectional view of the exemplary embodiment from FIGS. 1 and 2. The cross section is shown in the area of the fluid connection 6 .
- the heat sink 1 is enclosed within the housing 15 .
- the housing 15 is formed in this case by a profile 15.1 that is open since Lich.
- a side plate 16 is arranged on the open profile side of the housing 15 .
- an insertion slot 17 is formed between the profile 15.1 and the side plate 16. The insertion slot 17 extends over the entire length of the housing 15.
- the heat sink 1 is held between the side plate 16 and the profile 15.1.
- the heat sink 1 is penetrated by the cooling groove 2, the walls between the groove 3 extends.
- One of the groove walls 3 has a stepped bore 3.1.
- the stepped bore 3.1 penetrates the groove wall 3 up to the cooling groove 2.
- An outlet tube 7 is held within the stepped bore 3.1.
- the outlet tube 7 extends with the outlet end 7.1 to the cooling groove 2.
- the outlet end 7.1 of the outlet tube 7 is flush with the groove wall 3.
- the outlet tube 7 is held within the stepped bore 3.1 by a thermal insulating holder 10.
- a seal 11 is arranged on the circumference of the outlet tube 7 between the thermal insulating holder 10 and the outlet 7.1 of the outlet tube 7 .
- the outlet tube 7 is connected to a fitting body 12 through an inlet end.
- the connection body 12 and the outlet tube 7 are designed in one piece as a plug-in connection 13 .
- the plug connector 13 with the connector body 12 and the outlet tube 7 are made of a plastic material.
- the fluid connection 6 is arranged on the housing 15 in a thermally insulated manner, in particular in relation to the heat sink 1 .
- the coolant can be supplied at a constant coolant temperature.
- the plug connector 13 is held on the housing 15 by a clamp holder 14 . This situation is also shown schematically in FIG.
- the connector body 12 has a hose connection 12.1 in order to be connected to the dosing device 5 via a fluid line 22.
- a continuously running thread is fed through the insertion slot 17.
- the dosing device 5 is activated to cool the thread, in order to feed a cooling liquid, in particular water, to the cooling groove 2 via the fluid connection 6.
- the cooling liquid is fed to the cooling groove 2 via the outlet tube 7 at the outlet end 7.1.
- the coolant flows automatically over the groove wall 3 to the bottom 4 of the cooling groove 2.
- the running thread which is guided through the inlet thread guide 19, slides along the bottom 4 of the groove and is wetted with the coolant in the inlet area.
- the thread hits the ceramic insert 18 with the corrugated groove base surface 4.1. As a result, a further equalization of the wetting of the thread can be achieved.
- the thread is discharged via the outlet thread guide 20.
- the vapors and any residual fluids that have accumulated inside the housing 15 are taken up in the area of the thread outlet 9 through the suction connection 21 and discharged.
- the device according to the invention for cooling a running thread is particularly suitable in the exemplary embodiment shown for cooling a twisted thread over a short distance in a texturing process.
- a particular advantage is also given by the fact that the opening cross section of the outlet tube 7 can be selected to be relatively large and is therefore insensitive to contamination.
- possible deposits on the bottom 4 of the cooling groove 2 can be removed without impeding the fluid connection 6 .
- the thermal insulation of the fluid connection 6 in relation to the heat sink 1 also ensures that the temperature of the coolant supplied is constant.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021002945.3A DE102021002945A1 (de) | 2021-06-09 | 2021-06-09 | Vorrichtung zum Kühlen eines laufenden Fadens |
| PCT/EP2022/064928 WO2022258458A1 (de) | 2021-06-09 | 2022-06-01 | Vorrichtung zum kühlen eines laufenden fadens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4352287A1 true EP4352287A1 (de) | 2024-04-17 |
Family
ID=82156637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22732476.1A Withdrawn EP4352287A1 (de) | 2021-06-09 | 2022-06-01 | Vorrichtung zum kühlen eines laufenden fadens |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4352287A1 (de) |
| CN (1) | CN117480285B (de) |
| DE (1) | DE102021002945A1 (de) |
| WO (1) | WO2022258458A1 (de) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB788526A (en) * | 1954-11-26 | 1958-01-02 | Klinger Mfg Co Ltd | Improvements in or relating to apparatus for heat treatment of thermo-plastic or thermo-setting yarn |
| JPS58191230A (ja) * | 1982-04-28 | 1983-11-08 | 東レ株式会社 | 仮撚加撚域における走行糸条の案内方法及びその装置 |
| US4704856A (en) | 1986-01-09 | 1987-11-10 | E. I. Du Pont De Nemours And Company | False twisted differential tension yarn |
| JP3139132B2 (ja) * | 1992-05-27 | 2001-02-26 | 東レ株式会社 | 仮撚加工の糸冷却方法およびその糸冷却装置 |
| TW317579B (de) | 1995-04-11 | 1997-10-11 | Barmag Barmer Maschf | |
| JPH09316742A (ja) * | 1996-03-29 | 1997-12-09 | Toray Ind Inc | 仮撚加工装置 |
| AU5699300A (en) | 1999-07-08 | 2001-01-30 | University Of Manchester Institute Of Science & Technology, The | Processing textile materials |
| DE10110601A1 (de) | 2000-04-11 | 2001-10-25 | Barmag Barmer Maschf | Verfahren und Vorrichtung zum Spinnen und Kräuseln eines multifilen Fadens |
| EP1328671B1 (de) | 2000-10-28 | 2005-07-06 | Saurer GmbH & Co. KG | Falschdralltexturiermaschine |
| RU2415975C1 (ru) * | 2009-09-10 | 2011-04-10 | Сергей Алексеевич Пшенников | Линия по производству фибры из пластических масс |
| CN102817130A (zh) * | 2012-08-30 | 2012-12-12 | 绍兴文理学院 | 用于假捻变形机的冷却轨 |
| CN204982220U (zh) * | 2015-06-18 | 2016-01-20 | 浙江银宇纺织股份有限公司 | 一种温度可调加弹机冷却板装置 |
| JP6991225B2 (ja) | 2016-09-28 | 2022-01-12 | エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 合成糸を冷却する方法および装置 |
| EP3523469B1 (de) | 2016-10-08 | 2020-10-07 | Oerlikon Textile GmbH & Co. KG | Vorrichtung zum kühlen eines erwärmten fadens |
| SI3575470T1 (sl) | 2018-05-28 | 2021-01-29 | Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik | Naprava za proizvodnjo tkanih polsti iz brezkončnih filamentov |
-
2021
- 2021-06-09 DE DE102021002945.3A patent/DE102021002945A1/de not_active Withdrawn
-
2022
- 2022-06-01 EP EP22732476.1A patent/EP4352287A1/de not_active Withdrawn
- 2022-06-01 CN CN202280039055.6A patent/CN117480285B/zh active Active
- 2022-06-01 WO PCT/EP2022/064928 patent/WO2022258458A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021002945A1 (de) | 2022-12-15 |
| CN117480285B (zh) | 2026-01-30 |
| WO2022258458A1 (de) | 2022-12-15 |
| CN117480285A (zh) | 2024-01-30 |
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