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GB2151664A - Adjusting roving tension in a roving frame - Google Patents

Adjusting roving tension in a roving frame Download PDF

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Publication number
GB2151664A
GB2151664A GB08429808A GB8429808A GB2151664A GB 2151664 A GB2151664 A GB 2151664A GB 08429808 A GB08429808 A GB 08429808A GB 8429808 A GB8429808 A GB 8429808A GB 2151664 A GB2151664 A GB 2151664A
Authority
GB
United Kingdom
Prior art keywords
tension
roving
thread
frame
thread tension
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.)
Granted
Application number
GB08429808A
Other versions
GB8429808D0 (en
GB2151664B (en
Inventor
Volker Guhr
Viktor Satzger
Werner Docke
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.)
Kombinat Textima VEB
Original Assignee
Kombinat Textima VEB
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 Kombinat Textima VEB filed Critical Kombinat Textima VEB
Publication of GB8429808D0 publication Critical patent/GB8429808D0/en
Publication of GB2151664A publication Critical patent/GB2151664A/en
Application granted granted Critical
Publication of GB2151664B publication Critical patent/GB2151664B/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/108—Regulating tension by regulating speed of driving mechanisms of unwinding, paying-out, forwarding, winding or depositing devices, e.g. automatically in response to variations in tension

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

Adjusting or controlling the roving tension is effected in a roving frame with individual drives for the flyer, spool and drawing frame. The tension of the roving (10) is detected by the measured value receiver (6) and the individual drives (1, 2, 11) are adjusted by the processing unit (3) on the basis of this thread tension so that an optimum thread tension is achieved. <IMAGE>

Description

SPECIFICATION A Method of and Apparatus for Adjusting Roving Tension in a Roving Frame with Individual Drives The invention relates to a method for adjusting roving tension in a roving frame with individual drives, in the field of roving production.
A method for correcting the roving tension in roving frames has not been disclosed up to now.
In order to correct the thread tension in machines with a central drive use is made of devices with a spring-loaded knee joint which is controlled by a curved guideway (German Auslegeschrift 24 25 174), or devices which control the thread tension by means of cams. In addition, correction control systems are known (German Offenlegungsschrift 19 13 055). The achievement of these known solutions requires a high degree of mechanical complexity and the setting of the thread tension correction is only possible on the basis of empirical values. These solutions cannot be used for a single drive.
An aim of the invention is to provide a method enabling the roving tension to be adjusted.
The invention provides a method and apparatus for adjusting the roving tension in roving frames with individual drives.
The invention provides a method of adjusting the roving tension in a roving frame with individual drives, wherein the thread tension of a thread from the frame is detected and in that the individual drives are set to an optimum thread tension by a processing unit on the basis of the detected thread tension.
The invention also provides apparatus for controlling roving tension, comprising a roving frame, individual drives for the flyer, spool and drawing frame of the roving frame respectively, and means responsive to the tension of th read from the roving frame for adjusting the drives to achieve a desired thread tension.
In accordance with the invention the tension of the thread is detected by the measured value receiver and on the basis of this thread tension, the individual drives are set by a processing unit to an optimum thread tension. In accordance with the position of the thread in the measured value receiver, the nominal values for the motors are calculated by the processing unit. These nominal values may be varied individually or in combination by the processing unit until an optimum thread tension is achieved.
An embodiment of the invention is described in detail hereinafter with reference to the drawings in which: Fig. lisa block diagrammatic illustration of the operational relationship of the components and signals of the roving frame.
In the roving frame, electric motors 1,2, 11 are the individual drives for the flyer 7, the spools 8 and the drawing frame 9 respectively. The thread tension of the thread 10 is detected in accordance with the position of the thread 10 in the measured value receiver 6, which develops an electric signal representative of th read tension. The nominal values 4, 5, 12 for the motors 1,2, 11 are calculated by an electrical processing unit 3 typically a CPU of a microprocessor for this detected thread tension signal. These nominal values 4,5, 12 are varied individually or in combination by the processing unit 3 until an optimum thread tension of the thread 10 is achieved.
1. A method of adjusting the roving tension in a roving frame with individual drives, wherein the thread tension of a thread from the frame is detected and the individual drives are set to an optimum thread tension by a processing unit on the basis of the detected thread tension.
2. A method as claimed in claim 1, wherein nominal control values for the motors are calculated by the processing unit in accordance with the position of the thread in a measured value receiver for the thread tension.
3. A method as claimed in claim 2 wherein the nominal values are varied individually or in combination by the processing unit until an optimum thread tension is achieved.
4. A method of adjusting the roving tension in a roving frame with individual drives, substantially as herein described with reference to the accompanying drawings.
5. Apparatus for controlling roving tension, comprising a roving frame, individual drives for the flyer, spool and drawing frame of the roving frame respectively, and means responsive to the tension of th read from the roving frame for adjusting the drives to achieve a desired thread tension.
6. Apparatus according to claim 5 wherein said tension responsive means includes means for detectorythreadtension, and electrical processor means responsive to said detected thread tension for developing electric signals for controlling said individual drives.
7. Apparatus for controlling roving tension in a roving frame, substantially as herein described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A Method of and Apparatus for Adjusting Roving Tension in a Roving Frame with Individual Drives The invention relates to a method for adjusting roving tension in a roving frame with individual drives, in the field of roving production. A method for correcting the roving tension in roving frames has not been disclosed up to now. In order to correct the thread tension in machines with a central drive use is made of devices with a spring-loaded knee joint which is controlled by a curved guideway (German Auslegeschrift 24 25 174), or devices which control the thread tension by means of cams. In addition, correction control systems are known (German Offenlegungsschrift 19 13 055). The achievement of these known solutions requires a high degree of mechanical complexity and the setting of the thread tension correction is only possible on the basis of empirical values. These solutions cannot be used for a single drive. An aim of the invention is to provide a method enabling the roving tension to be adjusted. The invention provides a method and apparatus for adjusting the roving tension in roving frames with individual drives. The invention provides a method of adjusting the roving tension in a roving frame with individual drives, wherein the thread tension of a thread from the frame is detected and in that the individual drives are set to an optimum thread tension by a processing unit on the basis of the detected thread tension. The invention also provides apparatus for controlling roving tension, comprising a roving frame, individual drives for the flyer, spool and drawing frame of the roving frame respectively, and means responsive to the tension of th read from the roving frame for adjusting the drives to achieve a desired thread tension. In accordance with the invention the tension of the thread is detected by the measured value receiver and on the basis of this thread tension, the individual drives are set by a processing unit to an optimum thread tension. In accordance with the position of the thread in the measured value receiver, the nominal values for the motors are calculated by the processing unit. These nominal values may be varied individually or in combination by the processing unit until an optimum thread tension is achieved. An embodiment of the invention is described in detail hereinafter with reference to the drawings in which: Fig. lisa block diagrammatic illustration of the operational relationship of the components and signals of the roving frame. In the roving frame, electric motors 1,2, 11 are the individual drives for the flyer 7, the spools 8 and the drawing frame 9 respectively. The thread tension of the thread 10 is detected in accordance with the position of the thread 10 in the measured value receiver 6, which develops an electric signal representative of th read tension. The nominal values 4, 5, 12 for the motors 1,2, 11 are calculated by an electrical processing unit 3 typically a CPU of a microprocessor for this detected thread tension signal. These nominal values 4,5, 12 are varied individually or in combination by the processing unit 3 until an optimum thread tension of the thread 10 is achieved. CLAIMS
1. A method of adjusting the roving tension in a roving frame with individual drives, wherein the thread tension of a thread from the frame is detected and the individual drives are set to an optimum thread tension by a processing unit on the basis of the detected thread tension.
2. A method as claimed in claim 1, wherein nominal control values for the motors are calculated by the processing unit in accordance with the position of the thread in a measured value receiver for the thread tension.
3. A method as claimed in claim 2 wherein the nominal values are varied individually or in combination by the processing unit until an optimum thread tension is achieved.
4. A method of adjusting the roving tension in a roving frame with individual drives, substantially as herein described with reference to the accompanying drawings.
5. Apparatus for controlling roving tension, comprising a roving frame, individual drives for the flyer, spool and drawing frame of the roving frame respectively, and means responsive to the tension of th read from the roving frame for adjusting the drives to achieve a desired thread tension.
6. Apparatus according to claim 5 wherein said tension responsive means includes means for detectorythreadtension, and electrical processor means responsive to said detected thread tension for developing electric signals for controlling said individual drives.
7. Apparatus for controlling roving tension in a roving frame, substantially as herein described with reference to the accompanying drawings.
GB08429808A 1983-11-25 1984-11-26 Adjusting roving tension in a roving frame Expired GB2151664B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD25709683A DD222362B5 (en) 1983-11-25 1983-11-25 Method for roving tension control on roving machines with single drives

Publications (3)

Publication Number Publication Date
GB8429808D0 GB8429808D0 (en) 1985-01-03
GB2151664A true GB2151664A (en) 1985-07-24
GB2151664B GB2151664B (en) 1987-03-11

Family

ID=5552237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08429808A Expired GB2151664B (en) 1983-11-25 1984-11-26 Adjusting roving tension in a roving frame

Country Status (6)

Country Link
CH (1) CH664139A5 (en)
DD (1) DD222362B5 (en)
DE (1) DE3441585A1 (en)
ES (1) ES8601344A1 (en)
FR (1) FR2555618A1 (en)
GB (1) GB2151664B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072700A1 (en) * 1999-07-29 2001-01-31 MARZOLI S.p.A. Device and process for controlling the motor drives of textile machines
CN100462489C (en) * 2002-02-28 2009-02-18 Ykk株式会社 Thread break prevention device and yarn processing machine with thread break prevention unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741430A1 (en) * 1987-12-08 1989-06-22 Zinser Textilmaschinen Gmbh SPIDER
DD289300A5 (en) * 1989-11-30 1991-04-25 Grossenhainer Textilmaschinen DEVICE FOR DETERMINING THE PREHEATING POWER
CH681233A5 (en) * 1990-04-24 1993-02-15 Rieter Ag Maschf

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382200A (en) * 1963-10-18 1964-12-18 Improvements to spindle benches
FR1566512A (en) * 1968-03-12 1969-05-09
JPS5248652B2 (en) * 1973-05-25 1977-12-12
JPS53122828A (en) * 1977-04-01 1978-10-26 Aichi Spinning Co Method of and device for winding yarn under constant tension in bobbin lead spinning machine
CH625565A5 (en) * 1977-07-18 1981-09-30 Rieter Ag Maschf
CH659261A5 (en) * 1982-04-01 1987-01-15 Zinser Textilmaschinen Gmbh TWISTING MACHINE, ESPECIALLY FOR TWISTING GLASS THREADS.
DD217832B3 (en) * 1983-06-09 1991-03-28 Grossenhainer Textilmaschinenbau Gmbh,De PRE-SPILL MACHINE WITH DECENTRAL DRIVE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072700A1 (en) * 1999-07-29 2001-01-31 MARZOLI S.p.A. Device and process for controlling the motor drives of textile machines
US6476570B1 (en) 1999-07-29 2002-11-05 Marzoli S.P.A. Device and process for controlling the motor drives of textile machines
CN100462489C (en) * 2002-02-28 2009-02-18 Ykk株式会社 Thread break prevention device and yarn processing machine with thread break prevention unit

Also Published As

Publication number Publication date
GB8429808D0 (en) 1985-01-03
ES537934A0 (en) 1985-11-01
DE3441585A1 (en) 1985-06-05
CH664139A5 (en) 1988-02-15
DD222362A1 (en) 1985-05-15
GB2151664B (en) 1987-03-11
ES8601344A1 (en) 1985-11-01
DD222362B5 (en) 1994-05-05
FR2555618A1 (en) 1985-05-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951126