Classifications

• • 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
  • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
• • 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

Definitions

• the invention relates to a device for cooling a heated thread according to the preamble of claim 1.
• the threads receive a crimp in a texturing process.
• the thread is stretched and curled in a so-called texturing zone.
• For crimping the thread receives a false twist, which propagates counter to the thread running direction.
• the thread is heated to a temperature in the range of 200 ° C.
• the thereby achieved plastic state of the thread material causes the swirl memorizes in the individual filaments of the thread.
• the thread is then immediately cooled to a temperature of about 80 ° C.
• the cooling of the thread is preferably carried out by an air-cooled cooling rail, on the surface of the thread is guided with contact.
• cooling rails basically have the disadvantage that relatively long cooling distances are required lent to receive a running yarn at higher speeds sufficient cooling.
• devices for cooling a heated thread are known, in which the cooling of the thread is carried out with the aid of a cooling liquid in order to realize the shortest possible cooling sections can.
• Such a generic device for cooling a heated thread is known for example from EP 0 403 098 A2.
• a cooling body is provided with a cooling groove having a plurality of recessed Nuttaschen in the groove bottom of the cooling groove.
• the cooling groove is coupled via a capillary with a coolant reservoir, so that the coolant is continuously introduced into the cooling groove.
• the heated thread is guided by contact through the cooling groove and cooled by the cooling liquid.
• the thread is passed over a subsequent cooling rail.
• the residual cooling liquid emerging on the outlet side of the cooling groove is collected and returned to a tank.
• the heat sink is held directly in the machine environment, so that the vapors occur unhindered in the environment.
• the excess cooling liquid residues adhering to the thread are entrained by the thread and lead to partially undesired contamination of the surroundings and the neighboring aggregates.
• Another object of the invention is to make the generic device for cooling a heated thread easy to use.
• the heat sink is encapsulated in a housing and that the housing has a threading slot for thread insertion, which threading slot extends between a thread inlet and a thread outlet on the housing.
• the invention is characterized in that the environment of the heat sink is limited by a housing.
• a threading slot on the housing ensures that a thread can be guided without major aids into the cooling groove of the heat sink.
• the threading slot on the housing in this case extends between a thread inlet and a thread outlet on the housing.
• the necessary openings for the thread guide in the housing can be limited to a minimum.
• the development of the device according to the invention is particularly advantageous, in which the threading slot is formed on a side wall of the housing above the cooling groove of the heat sink. So it is well known that the vapors rise from the cooling groove. Due to the lateral arrangement of the Einfädelschlitzes a direct connection between the cooling groove and the threading slot is not given.
• the cooling groove is preferably designed with a curved groove base.
• the threading slot is formed between the thread inlet and the thread outlet with an at least partially equivalent curvature to the groove base. This allows a substantially constant distance between the cooling groove and the Achieve threading slot, which makes it difficult to escape of vapors over the entire cooling section.
• the thread guide within a treatment zone can be improved in particular by the development of the invention by an inlet thread guide and the thread outlet an outlet thread guide is assigned within the housing the thread inlet and wherein the heat sink extends between the thread guides.
• the angles at which the thread enters and exits the cooling groove can thus be set particularly accurately and reproducibly. A separate alignment of the heat sink within a textile machine is not required.
• a suction opening is formed on the housing within the housing in the region of the thread outlet, which can be connected to a suction device.
• the suction opening is preferably formed in a housing bottom between the heat sink and the thread outlet, so that at the same time a residual cooling liquid can be removed, which is carried by the thread from the cooling groove and discharged.
• an air opening is formed on the housing, the opens in an environment. This allows a continuous fresh air to lead.
• the thread inlet and the thread outlet and the threading slot preferably have minimum opening cross-sections. Thus, the entrainment of hot air through the thread can be reduced at the thread inlet.
• the metering device is preferably arranged outside the housing and connected by a fluid line to the heat sink in the interior of the housing.
• a fluid line to the heat sink in the interior of the housing.
• the development of the invention is particularly advantageous in which the cooling groove in a portion of the groove bottom has a plurality of recessed Nuttaschen, each separated by a guide web in the groove base from each other wherein the metering is formed in an upstream portion of the groove bottom ,
• FIG. 1 is a schematic side view of an embodiment of the device according to the invention
• Fig. 2 schematically shows a front view of the embodiment of FIG.
• FIG. 1 3 is a schematic longitudinal sectional view of the embodiment of FIG. 1
• FIG. 4 is a schematic cross-sectional view of the embodiment of FIG. 1
• FIG. 1 shows a side view
• FIG. 2 a front view
• FIG. 3 a longitudinal sectional view
• FIG. 4 a cross-sectional view of the device according to the invention.
• the embodiment of the device according to the invention has an elongated housing 7.
• an elongated heat sink 1 is arranged in the interior of the housing 7.
• a cooling groove 2 extends on an upper side of the heat sink 1.
• the cooling groove 2 extends up to the front ends of the heat sink 1.
• the cooling groove 2 has a curved groove bottom 3.
• In an inlet region of the cooling groove 2 opens a metering 4 in the groove bottom 3.
• the metering 4 is connected to a metering 4.1, which penetrates the heat sink 1 to a bottom.
• a plurality of Nuttaschen 3.1 are formed, which are separated by a plurality of webs 3.2 in the groove bottom 3.
• the heat sink 1 is held with its underside on a housing bottom 7.3 of the housing 7. As can be seen in particular from the representation in FIG. 4, the environment of the heat sink 1 is encapsulated by the housing 7.
• the housing 7 In addition to the housing bottom 7.3, the housing 7 has an opposite housing cover 7.4 and two opposite housing side walls 7.1 and 7.2.
• the housing wall 7.1 is designed in several parts and forms a Einfädelschlitz 1 1.
• the threading slot 1 1 extends over the entire length of the housing 7.
• the Einfädelschlitz 1 1 is executed with an equivalent to the curvature of the groove bottom of the cooling groove 2 curvature.
• the Einfädelschlitz 1 1 can be formed immediately laterally adjacent to the heat sink 1 on the housing 7.
• the threading slot 1 1 is connected to a thread inlet 8 and to a thread outlet 9, as can be seen from the illustration in FIG. 2 using the thread inlet 8 as an example.
• the thread inlet 8 and the thread outlet 9 are formed on the housing end walls 7.5 and 7.6 of the housing 7.
• an inlet yarn guide 8.1 and on the housing end wall 7.2 an outlet yarn guide 9.1 is arranged on the housing end wall 7.5.
• the inlet yarn guide 8.1 and the outlet yarn guide 9.1 are preferably formed by a ceramic and have a Faden arrangementsnut on.
• the inlet yarn guide 8.1 directly forms the yarn inlet 8 and the outlet yarn guide 9.1 the yarn outlet 9.
• the yarn guides 8.1 and 9.1 could be arranged independently of a yarn inlet 8 and a yarn outlet 9 in the interior of the housing 7. As can be seen in particular from the representation in FIG.
• the inlet thread guide 8.1 and the outlet thread guide 9.1 are arranged at a short distance from the front ends of the heat sink 1.
• the guide grooves of the yarn guides 8.1 and 9.1 cooperate with the groove bottom 3 of the cooling groove 2 for thread guide.
• a suction opening 10 is formed within the housing 7 in the housing bottom 7.3 in the area of the thread outlet 9.
• the suction opening 10 is arranged between the front end of the heat sink 1 and the Auslassfadenthink 9.1.
• the suction opening 10 is coupled via a suction line 13 with a suction device, not shown here.
• the housing side wall 7.2 On the opposite side in the inlet region, the housing side wall 7.2 has an air opening 12.
• the air opening 12 is formed in the region between the inlet yarn guide 8.1 and the front end of the heat sink 1.
• the air opening 12 opens into an environment of the housing 7.
• the supply of a cooling liquid is ensured by a metering device 6 which is arranged outside the housing 7.
• the metering device 6 has a metering means 6.1, for example a metering pump and a container 6.2, which is filled with a coolant.
• the dosing 6.1 is connected via a fluid line 5 with the dosing 4.1 of the heat sink 1.
• a fluid connection can be formed in the housing bottom 7.3, through which the fluid line 5 is connected to the metering channel 4.1.
• the metering device 6 conveys a predetermined amount of cooling liquid continuously to the heat sink 1, wherein the metered amount of cooling liquid via the metering opening 4 in the groove bottom 3 of the cooling groove 2 is supplied.
• the thread is first fed at the beginning of the process via the threading slot 1 1 inside the housing 7 and then placed in the inlet yarn guide 8.1, the cooling groove 2 and the Auslassfadenprofit 9.1.
• the thread passes through the cooling groove 2 with contact on the groove base 3. In this case, the thread is wetted with the cooling liquid and cooled.
• the resulting vapors accumulate in the housing 7 and are discharged via the suction opening 10.
• a continuous stream of fresh air is introduced via the air opening 12 into the interior of the housing 7. It adjusts itself in a thread running direction uniform air flow, which favors the removal of vapors above the cooling groove 2.
• the air flow is used on the thread outlet side to suck on a freely guided thread section between the heat sink 1 and the Auslassfaden founded 9.1 loosely adhering coolant from the thread.
• leakage of a residual cooling liquid from the housing 7 is avoided. Due to the lateral arrangement of the threading slot 1 1 on the housing 7 can also avoid a thermally induced outgassing. The environment of the housing 7 thus remains substantially free of vapors and residual cooling liquid.
• the device according to the invention for cooling threads is therefore particularly suitable for use in texturing machines having a multiplicity of processing stations.
• a variety of such devices can be used in a texturing machine.
• intensive cooling of the threads by cooling liquids no stresses on the environment occur in the texturing machine.
• Due to the threading slit zes on the housing are fast and easy operations for applying the thread by an operator executable.
• the constructive embodiment of the heat sink 1 is exemplary.
• the heat sink may be formed with or without Nuttaschen in the groove base.
• a plurality of successively arranged heat sink may be provided, which are encapsulated together in the housing. It is essential here that the environment of the cooling body is encapsulated by the housing and that the housing has a threading slot which can be used for threading the threads.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
• Heat Treatment Of Strip Materials And Filament Materials (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58044073

Family Applications (1)

Country Status (5)

Cited By (3)

Citations (7)

Family Cites Families (10)

• 2017
  • 2017-02-14 EP EP17705115.8A patent/EP3523469B1/de active Active
  • 2017-02-14 WO PCT/EP2017/053249 patent/WO2018065123A1/de unknown
  • 2017-02-14 JP JP2019518443A patent/JP6861807B2/ja active Active
  • 2017-02-14 CN CN201780061398.1A patent/CN109844195B/zh active Active
  • 2017-03-20 TW TW106109157A patent/TWI765879B/zh active

Patent Citations (7)

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