SE9402414L - Tension Meter - Google Patents

Tension Meter

Info

Publication number
SE9402414L
SE9402414L SE9402414A SE9402414A SE9402414L SE 9402414 L SE9402414 L SE 9402414L SE 9402414 A SE9402414 A SE 9402414A SE 9402414 A SE9402414 A SE 9402414A SE 9402414 L SE9402414 L SE 9402414L
Authority
SE
Sweden
Prior art keywords
arm
thread
machine
tension
travelling
Prior art date
Application number
SE9402414A
Other languages
Swedish (sv)
Other versions
SE502045C2 (en
SE9402414D0 (en
Inventor
Richard Alsterland
Roland Calmerklint
Lars Nilsson
Original Assignee
Eltex Sweden Ab
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 Eltex Sweden Ab filed Critical Eltex Sweden Ab
Priority to SE9402414A priority Critical patent/SE502045C2/en
Publication of SE9402414D0 publication Critical patent/SE9402414D0/en
Publication of SE9402414L publication Critical patent/SE9402414L/en
Publication of SE502045C2 publication Critical patent/SE502045C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/20—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to excessive tension or irregular operation of apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/106—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a cantilever beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/26—Piezoelectric sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Knitting Machines (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Device for generating an electrical signal corresp. to the tension of a thread which is pulled through an arrangement in a thread handling machine, e.g. a spooling machine, loom, knitting machine or a sewing machine. A piezoelectric element fixed to a bendable arm in the device produces an electrical charge proportional to the bending of the arm as it is extended due to the arm bending. The novelty of the device is that the arm (19) is located in a housing (5) with one end movable in the lengthways direction of the housing and the opposing end being coupled together with a travelling element (13) whose opposite free end supports at least one crank arm (14,15). The end of this crank arm is in contact with the thread and is set up so that it moves the travelling element depending on the forces or tension in the thread, whilst the travelling element in turn bends the arm for extending the piezoelectric element correspondingly.
SE9402414A 1994-07-08 1994-07-08 Thread tension indicator esp. for high speed textile machinery such as looms, knitting machines, spooling machines or sewing machines - utilises electrical charge generated by piezoelectric element extended by bendable arm connected to crank arm in contact with thread SE502045C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9402414A SE502045C2 (en) 1994-07-08 1994-07-08 Thread tension indicator esp. for high speed textile machinery such as looms, knitting machines, spooling machines or sewing machines - utilises electrical charge generated by piezoelectric element extended by bendable arm connected to crank arm in contact with thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402414A SE502045C2 (en) 1994-07-08 1994-07-08 Thread tension indicator esp. for high speed textile machinery such as looms, knitting machines, spooling machines or sewing machines - utilises electrical charge generated by piezoelectric element extended by bendable arm connected to crank arm in contact with thread

Publications (3)

Publication Number Publication Date
SE9402414D0 SE9402414D0 (en) 1994-07-08
SE9402414L true SE9402414L (en) 1995-07-24
SE502045C2 SE502045C2 (en) 1995-07-24

Family

ID=20394669

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402414A SE502045C2 (en) 1994-07-08 1994-07-08 Thread tension indicator esp. for high speed textile machinery such as looms, knitting machines, spooling machines or sewing machines - utilises electrical charge generated by piezoelectric element extended by bendable arm connected to crank arm in contact with thread

Country Status (1)

Country Link
SE (1) SE502045C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE517299C2 (en) * 1995-10-06 2002-05-21 Eltex Sweden Ab Device for generating an electrical signal corresponding to the tension and / or movement of a wire.
EP3165490A1 (en) * 2015-11-09 2017-05-10 Eltex of Sweden AB A device for the transfer of a mechanical force into an electrical signal

Also Published As

Publication number Publication date
SE502045C2 (en) 1995-07-24
SE9402414D0 (en) 1994-07-08

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