Method of and apparatus for heat-treating bobbins of yarn

• US 4,953,368 A
• Filed: 02/17/1988
• Issued: 09/04/1990
• Est. Priority Date: 05/01/1987
• Status: Expired due to Fees

• Current Assignee: Nikku Industry Co., Ltd.
• Original Assignee: Nikku Industry Co., Ltd.
• Inventors: Kawasaki, Takuya, Kawakami, Osamu
• Primary Examiner(s): Stinson, Frankie L.
• Application Number:
  US07/156,789
• Time in Patent Office: 930 Days
• Field of Search: 68/5 C, 68/5 D, 68/8, 68/9, 68/10, 68/11, 242/35.5 A, 242/35.5 R, 57/281, 57/276, 28/285, 28/280
• US Class Current: 68/5.00C
• CPC Class Codes: B65H 2701/31 Textiles threads or artificial strands of filaments
• CPC Class Codes: B65H 67/06 Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations between spinning and winding machines D01H9/18, e.g. transporting cans D01H9/185
• CPC Class Codes: D01H 13/28 Heating or cooling arrangements for yarns removal of heat from machines D01H1/16

Abstract

Installed on a conveyor line which connects a spinning machine and a winding machine together, a heat treatment apparatus for bobbins of yarn which accepts a batch of upright bobbins arranged in rows and which performs steam heat treatments on the bobbins contained therein.

Claims

1. A heat treatment apparatus for bobbins of yarn installed on a conveyor line which connects a spinning machine and a winding machine together, the heat treatment apparatus, comprising:

a hermetically enclosed container means being in a hermetically-sealed state for performing a series of heat treatment operations therein such as a vacuum process and a steam-heating process;

a heat treatment container being in a non-hermetically-sealed state for allowing a series of upright bobbins of yarn to be supplied into the heat treatment apparatus from one side and discharged from the other side;

a vacuum pump means for evacuating the hermetically enclosed container means; and

a transfer means for moving the hermetically enclosed container means to the non-hermetically-sealed state, and the heat treatment container to the hermetically-sealed state, each of said bobbins having a non-perforated tube for taking up said yarn.

2. A heat treatment apparatus for bobbins of yarn as set forth in claim 1, wherein the bobbins of yarn are mounted upright on peg stands and, in this condition, supplied into a heat treatment bath of apparatus for heat treatment and are then discharged after heat treatment.

3. A heat treatment apparatus for bobbins of yarn as set forth in claim 1, wherein there are swing type conveyors before and after one of the heat treatment baths at a specified position to transfer upright bobbins on the peg stands.

4. A heat treatment apparatus for bobbins of yarn as set forth in claim 1, further comprising:

a conveyor line connecting a spinning machine and a winding machine together;

a plurality of heat treatment baths parallel arranged on the conveyor line, the baths being adapted for performing heat treatment on bobbins in hermetically enclosed states;

a plurality of covers spaced apart two times the distance between the heat treatment baths, the covers being adapted for enclosing the upper part of the baths; and

a device for moving the baths in alternate directions below the covers;

whereby the bobbins of yarn which are set upright are supplied into the bath from one side and discharged from the other side.

5. A heat treatment apparatus for bobbins of yarn comprising:

a conveyor line connecting a spinning machine and a winding machine together, a plurality of heat treatment baths provided on a path of the conveyor line, the baths being adapted for performing steam-setting operations under hermetically enclosed conditions of said bobbins of yarn;

a feed conveyor and a discharge conveyor installed before and after one of the heat treatment baths respectively;

a device for moving the baths to connect one of the baths with the feed conveyor and the discharge conveyor at the same time; and

steam paths and vacuum paths both connected to the heat treatment baths, each of said bobbins having a non-perforated tube for taking up said yarn.

6. A heat treatment apparatus for bobbins of yarn installed on a conveyor line which connects a spinning machine and a winding machine together, the heat treatment apparatus, comprising:

means for releasably bringing the apparatus to hermetic closure and to a hermetically-sealed state;

means for feeding a plurality of bobbins of yarn to be treated into the apparatus and for discharging a plurality of treated bobbins of yarn from the apparatus when the apparatus is released from the hermetic closure and from the hermetically-sealed state;

a vacuum pump for producing a vacuum condition inside the apparatus when bobbins of yarn to be treated are fed into the apparatus and the apparatus is hermetically closed;

means for supplying steam into the apparatus having an internal portion which is maintained in the vacuum condition; and

means for moving the apparatus to and from the hermetically-sealed state, each of said bobbins having a non-perforated tube for taking up said yarn.

7. A heat treatment apparatus for bobbins of yarn installed on a conveyor line which connects a spinning machine and a winding machine together, the heat treatment apparatus, comprising:

a hermetically enclosed container means being in a hermetically-sealed state for performing a series of heat treatment operations therein such as an evacuation process, leaving process, vacuum breaking process, a vacuum process and a steam-heating process;

a heat treatment container means being in a non-hermetically-sealed state for allowing a series of upright bobbins of yarn to be supplied into the heat treatment apparatus from one side and discharged from the other side; and

a transfer means for moving the hermetically enclosed container means to the non-hermetically-sealed state, and the heat treatment container means to the hermetically-sealed state, each of said bobbins having a non-perforated tube for taking up said yarn.