EP1749915A1 - Heat dissipating system of high-speed circular knitting machine - Google Patents

Heat dissipating system of high-speed circular knitting machine Download PDF

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Publication number
EP1749915A1
EP1749915A1 EP05107589A EP05107589A EP1749915A1 EP 1749915 A1 EP1749915 A1 EP 1749915A1 EP 05107589 A EP05107589 A EP 05107589A EP 05107589 A EP05107589 A EP 05107589A EP 1749915 A1 EP1749915 A1 EP 1749915A1
Authority
EP
European Patent Office
Prior art keywords
low temperature
knitting machine
super low
circular knitting
air gun
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Withdrawn
Application number
EP05107589A
Other languages
German (de)
English (en)
French (fr)
Inventor
Shih-Lung Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pai Lung Machinery Mill Co Ltd
Original Assignee
Pai Lung Machinery Mill Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Publication of EP1749915A1 publication Critical patent/EP1749915A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/30—Devices for controlling temperature of machine parts

Definitions

  • the present invention relates to a heat dissipating system of a high-speed circular knitting machine, and more particularly to a heat dissipating system capable of effectively lowering the high heat produced by a circular knitting machine during a knitting process.
  • a circular knitting machine is composed of three sections which are a yarn supply section, a knitting section, and a cloth rolling section.
  • the cylinder of the knitting section rotates about the center of the circular knitting machine, and a knitting needle is installed in a groove of the cylinder base and guided by a track of a cam to displace up and down while the cylinder base is rotating.
  • the knitting needle displaces up and down in the groove of the cylinder base, the sinker is pushed out timely to carry out the knitting with the knitting needle.
  • the knitting needle will constantly rub with the groove of the cylinder base to produce a high heat of up to 90 degrees Centigrade during the knitting process. The high heat will affect the movement among components due to the thermal expansion, and also may cause a breaking of yarns and produce defective products since the yarns cannot bear the high heat.
  • U.S. Patent No. 5,737,942 entitled “Means for deterring lint and debris accumulation on the knitting element of a circular knitting machine” comprises a curved plate disposed between a horizontal frame plate and a circular frame plate to define an air chamber, an air pump for sending compressed air to the air chamber through an air supply hose, and the compressed air flows to the cylinder base and other peripheral components so as to achieve the effects of removing dusts and dissipating heat.
  • 6,199,408 entitled “Cooling apparatus for knitting components” comprises a cover disposed between an intermediate ring and a lower ring to form a cylindrical chamber between a needle-selecting actuator and the cover, and a ventilation fan installed on the cover for guiding external air into the chamber and passing the air through an opening of the chamber for cooling the heat produced by the cylinder base and its peripheral components.
  • the foregoing heat dissipating device use the air at room temperature for dissipating the heat, and thus it can only reduce the high temperature produced by the friction between the knitting needle and the groove of the cylinder base to 80 degrees Centigrade, and the heat dissipating effect is very limited. Therefore, current manufacturers spare no efforts to overcome the shortcoming of the prior art whose heat dissipating effect is poor.
  • the primary objective of the present invention is to provide a heat dissipating system of a high-speed circular knitting machine that supply a low-temperature gas to the cylinder base and its peripheral components during a knitting process for effectively lowering the high temperature produced by the cylinder base and its peripheral components, so as to maximize the heat dissipating effect.
  • the present invention provides a heat dissipating system of a high-speed circular knitting machine comprised of a super low temperature air gun, and the super low temperature air gun including an air inlet, a cold air outlet, a swirl generating chamber, a brake, and a hot air discharge outlet, wherein the air inlet, cold air outlet, and swirl generating chamber are installed at an end of the super low temperature air gun, and the brake and the hot air discharge outlet are installed at the other end of the super low temperature air gun.
  • Compressed air is passed into the air inlet and undergone a rapid cooling process by the super low temperature air gun, and then ejected from the cold air outlet.
  • the present invention mainly installs a super low temperature cold air gun onto the circular knitting machine, and ejects cold air from the cold air outlet through the super low temperature air gun to effective carry away the high heat produced at the cylinder base of the circular knitting machine through a knitting process.
  • the invention provides a super low temperature air gun 100 that requires no refrigerant or power, which is used extensively in the areas of cooling knives during the cutting and drilling metals, rapid cooling for soldering electronic components, and cooling plastic formation.
  • the inventor of the present invention installs the super low temperature air gun 100 on the circular knitting machine 10 (as shown in the following figures) and aims a cold air outlet 102 of the super low temperature air gun 100 at the high-speed rotary cylindrical base 11 (which is a position of a high heat source produced in the knitting process) and blows cold air at the cylindrical base 11 of the circular knitting machine 10 to effectively lower the high heat of the cylinder base 11 and its peripheral components.
  • the super low temperature air gun 100 comprises an air inlet 101, the cold air outlet 102, a swirl generating chamber 103, a brake 104 and a hot air discharge outlet 105, wherein the air inlet 101, cold air outlet 102 and swirl generating chamber 103 are installed at one end of the super low temperature air gun 100, and the brake 104 and hot air discharge outlet 105 are installed at the other end of the super low temperature air gun 100.
  • a part of the air that is converted into heat energy is discharged from the hot air discharge outlet 105, and the rest of the hot air produces a backflow due to the pressure difference between the hot air and the low pressure section of the middle of the pipe.
  • the cold air produced by the backflow air at this section and the internal side of the swirl is ejected from the cold air outlet 102 in the direction from B to A. Further, the flow and internal pressure of the super low temperature air gun 100 can be controlled, such that the temperature of the ejected cold air can be controlled.
  • the internal pressure of the super low temperature air gun 100 is controlled within the range of 6.2 ⁇ 7Kg/cm 2 , and the flow is controlled within the range of 80 ⁇ 90nl/min, such that the temperature of the cold air ejected from the cold air outlet 102 can reach -5°C - -10°C. Since the temperature of the cold air ejected from the super low temperature air gun 100 of the present invention can reach -5°C ⁇ -10°C, the temperature of the cylinder base 11 can drop to 50 ⁇ 60°C.
  • the super low temperature air gun 100 is extended to a gap between saddle bases 12 of a high-speed circular knitting machine 10 by an extension pipe 110, and the cold air is ejected from the cold air outlet 102 through the gap to the cylinder base 11 and the cam 13 of the high-speed circular knitting machine 10 to effectively lower the temperature of the high heat on the components.
  • the super low temperature air gun 100 is extended to a gap between a cutting disc 14 and a pressing plate 17 of the high-speed circular knitting machine 10 by the foregoing extension pipe 110, and the cold air is ejected from the cold air outlet 102 through the gap and passed through the cylinder base 11 of the high-speed circular knitting machine 10 to effectively lower the high heat of the cylinder base 11.
  • the super low temperature air gun 100 is extended to a gap between a lower rhombus ring 15 and two saddle bases 12 of the high-speed circular knitting machine 10 by an extension pipe 110.
  • a penetrating hole 16 is disposed on the lower rhombus ring 15 under the gap, and the extension pipe 110 is connected to the penetrating hole 16.
  • the cold air ejected from the cold air outlet 102 passes through the penetrating hole 16 of the lower rhombus ring 15 to the cylinder base 11 and also passes through the gap between the cylinder base 11 and the lower rhombus ring 15 for effectively lowering the temperature of the high heat on the cylinder base 11.
  • the super low temperature air gun 100 is extended into a gap between yarn feeding nozzles 19 of the high-speed circular knitting machine 10 by the foregoing extension pipe 110, and the cold air is ejected from the cold air outlet 102 to the gap, and then passed through the cylinder base 11 (shown in FIG. 2B), a knitting needle (not shown in the figure) and a sinker (not shown in the figure) of the high-speed circular knitting machine 10 for effectively lowering the temperature of the high heat of the components.
  • the super low temperature air gun 100 of the present invention is installed in a leg 18 (which is adopted by the first to third preferred embodiments) for supporting a yarn supplying device (not shown in the figures) in a direction towards the airflow. Furthermore, the super low temperature air gun 100 is installed on the external surface of the leg 18 (particularly on the side proximate to the saddle base 12). The super low temperature air gun 100 may be installed onto a yarn feeding ring 20 (which is adopted by the fourth preferred embodiment). Of course, a person skilled in the art should know that the super low temperature air gun 100 is not limited to be installed to the foregoing leg 18 or yarn feeding ring 20, but it could be installed to any appropriate position of the circular knitting machine 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP05107589A 2005-08-01 2005-09-01 Heat dissipating system of high-speed circular knitting machine Withdrawn EP1749915A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2005100889100A CN1908271A (zh) 2005-08-01 2005-08-01 高速圆编机的散热系统

Publications (1)

Publication Number Publication Date
EP1749915A1 true EP1749915A1 (en) 2007-02-07

Family

ID=36010026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05107589A Withdrawn EP1749915A1 (en) 2005-08-01 2005-09-01 Heat dissipating system of high-speed circular knitting machine

Country Status (2)

Country Link
EP (1) EP1749915A1 (zh)
CN (1) CN1908271A (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2091302A (en) * 1981-01-16 1982-07-28 Sulzer Morat Gmbh Circular knitting machine with a cooling device
GB2239266A (en) * 1989-11-22 1991-06-26 Sipra Patent Beteiligung Temperature control in a circular knitting machine
US5737942A (en) 1996-07-03 1998-04-14 Alandale Industries, Inc. Means for deterring lint and debris accumulation on the knitting elements of a circular knitting machine
US6199408B1 (en) 1998-06-16 2001-03-13 Precision Fukuhara Works, Ltd. Cooling apparatus for knitting components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2091302A (en) * 1981-01-16 1982-07-28 Sulzer Morat Gmbh Circular knitting machine with a cooling device
GB2239266A (en) * 1989-11-22 1991-06-26 Sipra Patent Beteiligung Temperature control in a circular knitting machine
US5737942A (en) 1996-07-03 1998-04-14 Alandale Industries, Inc. Means for deterring lint and debris accumulation on the knitting elements of a circular knitting machine
US6199408B1 (en) 1998-06-16 2001-03-13 Precision Fukuhara Works, Ltd. Cooling apparatus for knitting components

Also Published As

Publication number Publication date
CN1908271A (zh) 2007-02-07

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