CN117480285A - Device for cooling moving threads - Google Patents
Device for cooling moving threads Download PDFInfo
- Publication number
- CN117480285A CN117480285A CN202280039055.6A CN202280039055A CN117480285A CN 117480285 A CN117480285 A CN 117480285A CN 202280039055 A CN202280039055 A CN 202280039055A CN 117480285 A CN117480285 A CN 117480285A
- Authority
- CN
- China
- Prior art keywords
- cooling
- tank
- groove
- outlet pipe
- fluid communication
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 81
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000009736 wetting Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
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
The invention relates to a device for cooling a moving wire, comprising an elongated cooling element. The cooling element has a cooling channel and cooperates with a metering device for supplying a cooling liquid. The metering device is connected to the cooling tank by a fluid communication mechanism on the cooling member. In order to allow a constant supply of cooling liquid independent of the yarn guidance, the fluid communication means according to the invention are arranged on the groove wall of the cooling element above the groove bottom and transversely to the cooling groove.
Description
The present invention relates to a device for cooling moving wires according to the preamble of claim 1.
WO2018/065023A1 discloses a device of this type for cooling moving wires.
In textile processes for processing synthetic threads, it is basically customary to heat the synthetic threads to a treatment temperature above the glass transition temperature in order to be able to produce special effects in the multifilament threads. For example, threads which are produced in the melt spinning process and which have a very smooth texture are curled in this way during further processing. This type of crimping is produced by twisting the multifilament thread and heat treatment by heating and cooling. To cool the wire, the wire is typically guided over a cooled metal surface in the form of an elongated cooling rail. This can be enhanced by additionally wetting the filaments with a cooling liquid. WO2018/065023A1 discloses a device of this type for cooling moving wires.
In the known device, the wire is guided through an elongated cooling channel. The fluid communication mechanism is disposed on the inlet side of the cooling tank and directly communicates with the tank bottom of the cooling tank through the metering hole. In this way, a continuous quantity of fluid can advantageously be supplied directly to the filaments guided in the cooling tank. The quantity of fluid metered to the thread is essentially related to the opening cross section of the metering orifice in the bottom of the cooling bath. The wire speed should also be taken into account, especially in the case of small metering, to avoid that the metering orifice is emptied by suction by capillary action.
The object of the present invention is therefore to improve a device for cooling moving wires of this type so that the wires can be wetted uniformly with a constant metered amount of cooling liquid.
According to the invention, this object is achieved in that the fluid communication means are arranged on the groove wall of the cooling element above the groove bottom and transversely to the cooling groove.
Advantageous developments of the invention are defined by the features and feature combinations of the dependent claims.
The difference of the invention is that the supply of cooling liquid enters the bottom of the cooling tank without being affected by the wire. The coolant metering is prevented from being affected by the yarn speed or the yarn thickness of the yarn. Furthermore, the coolant metering can be carried out independently of the outlet cross section of the filament end. In this way, a relatively large outlet cross section may be selected for the fluid communication mechanism.
Since the wire has the highest wire temperature when entering the cooling bath, it is preferable to implement a development in which the fluid communication means is designed with an outlet pipe in the wire inlet region, wherein the outlet pipe passes through the bath wall of the cooling element to the cooling bath. In this way, the cooling liquid can be supplied directly to the incoming thread. On the one hand, in this way, a strong cooling effect can be produced by evaporation of the cooling liquid. Furthermore, residual liquid can be advantageously avoided in this way. According to this embodiment, the outlet pipe can here protrude through the outlet end into the cooling tank.
In order to ensure that the threads are wetted by contact with the cooling trough, the following development of the invention is particularly advantageous, in which the outlet end of the outlet pipe ends flush with the inner contour of the trough wall above the cooling trough. In this way, the cooling liquid can leave the outlet pipe and be guided to the tank bottom via the tank wall. In this case, the coolant distribution can be influenced by a special shaping of the groove wall in the region of the mouth of the outlet pipe.
Since the heating of the cooling element by the heated wire takes place in particular in the inlet region of the cooling element, the following development of the invention is particularly advantageous in that the outlet tube is formed from a plastic material and is held in the groove wall of the cooling element by an insulating support. In this way, the supply of cooling liquid and in particular the cooling liquid temperature is kept at a constant level and is independent of the heating effect brought about by the moving wire.
In order to avoid leakage, it is also provided that a seal is arranged in the groove wall between the outlet end of the outlet pipe and the insulating support on the peripheral surface of the outlet pipe.
For attaching the coolant lines, a connector is connected to the inlet end of the outlet pipe, which protrudes out of the cooling element, wherein the connector has a hose connection.
It has proven particularly successful here that the outlet tube and the connecting piece are integrally formed by an L-shaped plug connector. The latter can be easily assembled and disassembled and is advantageous for thermal insulation.
The plug connector is preferably held on the housing of the cooling element by a clamping bracket. In this way, a complex threaded connection for fastening the fluid communication mechanism can be avoided.
The housing is preferably formed by a profile which is open on one side, so that an insertion slot for introducing the thread at the beginning of the process is formed by the housing side plate together with the profile. As a result, a complicated threading process at the beginning of the process can be avoided.
In order to be able to utilize the potential dynamic movement of the thread when wetting the thread, the invention provides a particularly advantageous development in which the ceramic insert is arranged downstream of the fluid connection in the thread displacement direction in such a way that it is located in the groove bottom in the cooling groove, the ceramic insert forming the groove bottom. In this way, the thread can be guided ideally without friction in order to be able to use dynamic effects such as twisting in the thread for wetting. Furthermore, the grooves of the ceramic insert may be filled with a cooling liquid, so that the evaporation of the cooling liquid is hindered by continuous wetting.
The device for cooling a moving wire according to the present invention allows to cool the moving wire strongly under constant conditions.
The device for cooling a moving wire according to the invention will be explained in more detail below by way of example with reference to the accompanying drawings, in which:
figure 1 schematically shows a side view of an embodiment of the device for cooling a heated wire of the present invention,
figure 2 schematically shows a longitudinal section through the embodiment of figure 1,
fig. 3 schematically shows a cross-sectional view of the embodiment of fig. 1.
A first embodiment is schematically shown in several views in fig. 1, 2 and 3. Fig. 1 shows a side view, fig. 2 shows a longitudinal section, and fig. 3 shows a cross section. The following description applies to all figures unless one of them is explicitly mentioned.
The embodiment in fig. 1 and 2 is shown with an elongated housing 15 extending between the wire inlet 8 and the wire outlet 9. In side view, the wire inlet 8 is on the right and the wire outlet 9 is on the left. In contrast, in a longitudinal sectional view, the wire inlet 8 is shown on the left and the wire outlet 9 on the right.
Thus, in fig. 1 the fluid communication means 6 is shown in the region of the wire inlet 8 on the housing 15. The fluid communication mechanism 6 is provided on a longitudinal side of the housing 15. The fluid communication mechanism 6 is connected to the metering device 5. The metering device 5 comprises at least a metering pump 5.1 and a tank 5.2 containing a cooling liquid. The structure of the fluid communication mechanism 6 will be explained in more detail below.
In the region of the wire outlet 9, a suction connection 21 is provided on the underside of the housing 15. Reference is now made to fig. 2 for further explanation of this embodiment.
In the longitudinal section shown in fig. 2, the cooling element 1 is arranged in a housing 15. The elongated cooling element 1 has an open cooling channel 2 at its upper side, which extends as far as the front end of the cooling element 1. The cooling tank 2 has a curved tank bottom 4. In the region of the inlet of the cooling tank 2, the fluid communication means opens into the tank wall 3 of the cooling tank 2 via the outlet end 7.1. As mentioned above, the fluid communication mechanism 6 (not shown in more detail in fig. 2) will be explained in more detail below. In this way, the fluid communication means 6 open onto the groove wall 3 of the cooling element 1 above the groove bottom 4 and transversely to the cooling groove 2.
The ceramic insert 18 in the groove bottom 4 is arranged downstream of the outlet end 7.1 of the fluid connection 6 in the direction of the thread movement. The ceramic insert 18 is recessed in the groove bottom and forms a groove bottom surface 4.1 in the extension of the groove bottom 4.
The other ceramic insert 18 is recessed in the groove bottom 4 of the cooling groove 2 at the opposite end of the cooling element 1. The ceramic insert 18 also forms a grooved groove bottom surface 4.1 in the groove bottom 4.
Within the housing 15, the cooling element 1 is assigned an inlet guide wire element 19 and an outlet guide wire element 20 opposite to each other. An inlet guide 19 is assigned to the thread inlet 8 of the housing 15. Thus, the outlet guide 20 is assigned to the wire outlet 9 of the housing 15. The housing 15 also has a suction connection 21 on the outlet side.
For an explanation of the fluid inflow 6, reference is now made to fig. 3. Fig. 3 shows a cross-sectional view of the embodiment of fig. 1 and 2. This cross section is shown in the region of the fluid communication means 6. The cooling element 1 is enclosed in a housing 15. In this case, the housing 15 is formed by a profile 15.1 which is open on the side. A side plate 16 is provided on the open profile side of the housing 15. The insertion slot 17 is formed here between the profile 15.1 and the side plate 16. The insertion slot 17 extends over the entire length of the housing 15.
The cooling element 1 is held between the side plate 16 and the profile 15.1. The cooling element 1 is penetrated by cooling channels 2 extending between the channel walls 3. One of the groove walls 3 has a stepped bore 3.1. The stepped bore 3.1 extends through the slot wall 3 to the cooling slot 2. The outlet tube 7 is held in the stepped bore 3.1. The outlet pipe 7 extends through the outlet end 7.1 up to the cooling tank 2. The outlet end 7.1 of the outlet pipe 7 ends here flush with the groove wall 3.
The outlet pipe 7 is held in the stepped bore 3.1 by a thermally insulating support 10. The seal 11 is arranged on the circumference of the outlet pipe 7 between the thermally insulating holder 10 and the outlet end 7.1 of the outlet pipe 7.
The outlet pipe 7 is connected via an inlet end to a connection piece 12. The connection piece 12 and the outlet tube 7 are integrally formed as a plug connector 13. The plug connector 13 with the connection piece 12 and the outlet tube 7 is formed from a plastic material. As a result, the fluid communication mechanism 6 is provided on the housing 15 so as to be insulated with respect to the cooling element 1 in particular. The supply of the cooling liquid may be performed at a constant cooling liquid temperature.
The plug connector 13 is held on the housing 15 by a holding bracket 14. This situation is also schematically shown in fig. 1. The connection piece 12 has a hose connection 12.1 here for connection to the metering device 5 via a fluid line 22.
In operation, the embodiment shown in fig. 1 to 3 is supplied with continuously moving filaments at the beginning of the process through the insertion slit 17. The metering device 5 is then activated to cool the wire to supply cooling liquid, in particular water, to the cooling tank 2 via the fluid communication means 6. The cooling liquid is supplied via an outlet pipe 7 at the outlet end 7.1 of the cooling tank 2. The cooling fluid automatically flows here through the groove walls 3 to the groove bottom 4 of the cooling groove 2. The moving wire guided by the inlet wire 19 slides along the groove bottom 4 and is wetted in the inlet region by the coolant. On its further travel, the wire encounters the ceramic insert 18 with the grooved groove bottom surface 4.1. As a result, a further homogenization of the wetting of the threads can be obtained. The wire is discharged through the outlet guide 20 while passing through the cooling bath 2.
The water vapor and potentially residual fluid accumulated in the housing 15 is received and discharged through the suction connection 21 in the region of the wire outlet 9.
The device according to the invention for cooling a moving wire in the illustrated embodiment is particularly suitable for cooling a twisted wire for a short distance during the deformation process. A particular advantage is also provided in that the opening cross section of the outlet pipe 7 can be chosen relatively large, so that it is free from dirt. Furthermore, potential deposits on the groove bottom 4 of the cooling groove 2 can be removed without interfering with the fluid communication mechanism 6. In addition, the thermal insulation of the fluid communication means 6 with respect to the cooling element 1 ensures a uniform temperature control of the supplied cooling liquid.
Claims (10)
1. Device for cooling a moving wire, with a cooling element (1) and a metering device for supplying a cooling liquid, the cooling element (1) having an elongated cooling tank (2), wherein the metering device (5) is connected to the cooling tank (2) by means of a fluid communication means (6) on the cooling element (1), characterized in that the fluid communication means (6) are arranged on the tank wall (3) of the cooling element (1) above the tank bottom (4) and transversely to the cooling tank (2).
2. The device according to claim 1, characterized in that the fluid communication means (6) pass through the groove wall (3) of the cooling element (1) through an outlet pipe (7) to the cooling groove (2) in the region of the wire inlet (8).
3. The device according to claim 2, characterized in that the outlet end (7.1) of the outlet pipe (7) ends flush with the inner contour of the tank wall (3) above the tank bottom (4).
4. A device according to claim 2 or 3, characterized in that the outlet pipe (7) is formed of a plastic material and is held in the groove wall (3) of the cooling element (1) by means of an insulating support (10).
5. A device according to claim 4, characterized in that a seal (11) is arranged in the groove wall (3) in such a way that it is located between the outlet end (7.1) of the outlet pipe (7) and the thermally insulating support (10) on the circumference of the outlet pipe (7).
6. A device according to any one of claims 2-4, characterized in that the outlet pipe (7) is connected to a connection piece (12) with a hose connection (12.1) at an inlet end protruding outside the cooling piece (1).
7. The device according to claim 6, characterized in that the outlet tube (7) and the connecting piece (12) are integrally formed by an L-shaped plug connector (13).
8. The device according to claim 7, characterized in that the plug connector (13) is held on the housing (15) of the cooling element (1) by means of a clamping bracket (14).
9. The device according to claim 8, characterized in that the housing (15) is formed by a profile (15.1) which is open on one side and that an insertion slot (17) is formed between the profile (15.1) and a side plate (16) of the housing (15).
10. The device according to any one of claims 1 to 9, characterized in that a ceramic insert (18) is arranged downstream of the fluid communication means (6) in the direction of wire movement so as to be located in the groove bottom (4) within the cooling groove (2), the ceramic insert (18) forming a grooved groove bottom (4.1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021002945.3A DE102021002945A1 (en) | 2021-06-09 | 2021-06-09 | Device for cooling a running thread |
| DE102021002945.3 | 2021-06-09 | ||
| PCT/EP2022/064928 WO2022258458A1 (en) | 2021-06-09 | 2022-06-01 | Device for cooling a running thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117480285A true CN117480285A (en) | 2024-01-30 |
Family
ID=82156637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280039055.6A Pending CN117480285A (en) | 2021-06-09 | 2022-06-01 | Device for cooling moving threads |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4352287A1 (en) |
| CN (1) | CN117480285A (en) |
| DE (1) | DE102021002945A1 (en) |
| WO (1) | WO2022258458A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191230A (en) * | 1982-04-28 | 1983-11-08 | 東レ株式会社 | Method and apparatus for guiding running strand in false twisting region |
| US4704856A (en) | 1986-01-09 | 1987-11-10 | E. I. Du Pont De Nemours And Company | False twisted differential tension yarn |
| JP3139132B2 (en) * | 1992-05-27 | 2001-02-26 | 東レ株式会社 | Method for cooling yarn in false twisting and yarn cooling device |
| TW317579B (en) | 1995-04-11 | 1997-10-11 | Barmag Barmer Maschf | |
| WO2001004396A1 (en) | 1999-07-08 | 2001-01-18 | University Of Manchester Institute Of Science And Technology | Processing textile materials |
| DE10110601A1 (en) | 2000-04-11 | 2001-10-25 | Barmag Barmer Maschf | Production of a texturized filament yarns divides the extruded filament bundle into equal part-bundles to be texturized and then combined into a yarn for winding |
| DE50106701D1 (en) | 2000-10-28 | 2005-08-11 | Saurer Gmbh & Co Kg | False twist |
| CN204982220U (en) * | 2015-06-18 | 2016-01-20 | 浙江银宇纺织股份有限公司 | Temperature adjustable adds bullet machine cooling plate device |
| WO2018059743A1 (en) | 2016-09-28 | 2018-04-05 | Oerlikon Textile Gmbh & Co. Kg | Method and device for cooling a synthetic thread |
| EP3523469B1 (en) | 2016-10-08 | 2020-10-07 | Oerlikon Textile GmbH & Co. KG | Device for cooling a warm yarn |
| SI3575470T1 (en) | 2018-05-28 | 2021-01-29 | Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik | Device for the manufacture of woven material from continuous filaments |
-
2021
- 2021-06-09 DE DE102021002945.3A patent/DE102021002945A1/en active Pending
-
2022
- 2022-06-01 WO PCT/EP2022/064928 patent/WO2022258458A1/en active Application Filing
- 2022-06-01 EP EP22732476.1A patent/EP4352287A1/en active Pending
- 2022-06-01 CN CN202280039055.6A patent/CN117480285A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021002945A1 (en) | 2022-12-15 |
| WO2022258458A1 (en) | 2022-12-15 |
| EP4352287A1 (en) | 2024-04-17 |
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| PB01 | Publication | ||
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