CN101382464A - Cantilever beam type yarn tension detection apparatus - Google Patents
Cantilever beam type yarn tension detection apparatus Download PDFInfo
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- CN101382464A CN101382464A CNA2007100455399A CN200710045539A CN101382464A CN 101382464 A CN101382464 A CN 101382464A CN A2007100455399 A CNA2007100455399 A CN A2007100455399A CN 200710045539 A CN200710045539 A CN 200710045539A CN 101382464 A CN101382464 A CN 101382464A
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- flexure strip
- magneto
- magnetic
- yarn tension
- dependent sensor
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Abstract
The invention relates to a cantilever beam type yarn tension detector which is particularly applicable to the online detection of moving yarn tension on a cheese winder or a spinning machine in textile industry production, comprising a flexure strip with one end tightly fixed on a fixed slab and the other end being a free end, the upper side of the free end of the flexure strip is installed with a lead component, and the lower side thereof is fixed with a magnetic body and a magneto-dependent sensor. The flexure strip takes two shapes which are a rectangle with uniform section and a trapezoid with constant strength; the magnetic body can adopts a single head form or a dual head form. The detector has the advantages that the combined action of two sensor elements which are the flexure strip and the dual magneto-dependent sensor are combined and utilized to convert the tension change of a tested linear object into the corresponding amount of displacement of the flexure strip, the amount of displacement is corresponding to magnetic-field strength and has linear relationship with an electric signal output by the magneto-dependent sensor, and the complementation of the dual magneto-dependent sensor to temperature drift and the amplification of the output signal cause the dynamic tension of the detected object in linear shape or strip shape to be more accurate and real-time.
Description
Technical field
The present invention relates to a kind of cantilever beam type yarn tension detection apparatus, be applicable to the force transducer of industries such as weaving, knitting, woven, chemical fibre, silk the online detection usefulness of yarn tension in the motion.
Background technology
2007100418205 and 2007200708862 Chinese patent application " force transducer of the online detection usefulness of thread-shaped body tension force ", it is characterized in that comprising that an end is fastened on the fixed flat planar, the other end is free-ended flexure strip, the free-ended side of flexure strip is equipped with the wire guiding member that contacts with tested thread-shaped body, the free end opposite side is fixed with magnetic, and magnetic is fixed with hall magnetic sensor in the formed magnetic field.
Be characterized in conjunction with the compound action of utilizing flexure strip and two kinds of sensor elements of hall magnetic sensor, the tension variation of tested thread-shaped body is changed into the corresponding displacement of flexure strip, this displacement is corresponding with change of magnetic field strength, and linear with the signal of hall magnetic sensor output.
It is very big that this invention detects data deviation in actual applications, zero-bit is inaccurate, the precision of detection and the effect of long online detection have been had a strong impact on, this is because the drift that the magneto-dependent sensor temperature influence produces causes, in addition since the single-sensor output signal a little less than, thereby cause member longer.
Summary of the invention
The objective of the invention is provides a kind of intelligent Yarn tension detection apparatus on the basis of 2007100418205 and 2007200708862 Chinese patent application " force transducer of the online detection usefulness of thread-shaped body tension force ".Of the present utility model being characterised in that comprises that an end is fastened on the fixed flat planar, the other end is free-ended flexure strip, the free-ended upside of flexure strip is equipped with the wire guiding member that contacts with tested thread-shaped body, the free end downside is fixed with magnetic, and magnetic is fixed with magneto-dependent sensor in the formed magnetic field.
Be characterized in conjunction with the compound action of utilizing flexure strip and two kinds of sensor elements of magneto-dependent sensor, the tension variation of tested thread-shaped body is changed into the corresponding displacement of flexure strip, this displacement is corresponding with change of magnetic field strength, and linear with the signal of magneto-dependent sensor output.The particularly complementation of dual sensor temperature coefficient, and the increase of output signal are guaranteed precision, stability and the reliability of dynamic online detection.
Description of drawings
Accompanying drawing 1 is the structural representation of 2007100418205 and 2007200708862 Chinese patent application " force transducer of the online detection usefulness of thread-shaped body tension force "; Fig. 2 is a basic structure synoptic diagram of the present invention, and the magnetic that is adopted is the dual sensor form of single head; Fig. 3 is a uniform cross section rectangle flexure strip synoptic diagram; Fig. 4 is the trapezoidal flexure strip synoptic diagram of equal strength; Fig. 5 yarn guiding trough (7) or (8) in square box (9) are subjected to the inconsistent structural representation of force direction with wire guiding member (3); Fig. 6 yarn guiding trough (7) or (8) in square box (9) are subjected to the consistent structural representation of force direction with wire guiding member (3); Fig. 7, Fig. 8, Fig. 9 are the structural representations of the various combination of A and B among Fig. 5, Fig. 6; Figure 10, Figure 11 are the synoptic diagram that magnetic (4) and magneto-dependent sensor (5) are arranged on the different structure of the middle any a certain position of flexure strip (1).Among the figure:
1, flexure strip; 2, fixed flat planar; 3, wire guiding member; 4, magnetic; 5, magneto-dependent sensor; 6, detection head; 7, closed yarn guiding trough; 8, open yarn guiding trough; 9, square box; 10, yarn.
Embodiment
Below the present invention is described in further details.
Flexure strip 1 is a sheet metal, often adopts alloy material.When selecting the flexure strip 1 of different elastic modulus, different densities, different length or different-thickness for use, can change dynamometry scope, resolution sizes and, reach measurement requirement thus the control of the deflection of flexure strip 1.
In the measuring process, under the effect of power, flexure strip 1 displacement drives magnetic 4 simultaneously corresponding displacement takes place, and causes changes of magnetic field thus, and with the form output that magneto-dependent sensor 5 voltage linears change, measures the tension variation value of tested yarn 10 in real time.
The magnetic 4 that is adopted can be two group single heads or two groups of double ends, change the fixed position of magnetic 4 on flexure strip 1, or when changing intensity, spacing, the size of magnetic 4, also all can adjust the size of dynamometry scope or resolution, the complementation of two magneto-dependent sensors 5 makes detection of dynamic avoid Temperature Influence, the application of two magneto-dependent sensors 5 makes output signal that double increase arranged, and measurement result is more accurate, real-time.
Claims (4)
1. cantilever beam type yarn tension detection apparatus, it is characterized in that comprising that an end is fastened on the fixed flat planar (2), the other end is free-ended flexure strip (1), free-ended upside is equipped with the wire guiding member (3) that contacts with testee (10), free-ended downside is fixed with magnetic (4), magnetic (4) is fixed with magneto-dependent sensor (5) in the formed magnetic field, and the both sides of wire guiding member (3) are equipped with open yarn guiding trough (8) or closed yarn guiding trough (7) is housed.
2. cantilever beam type yarn tension detection apparatus as claimed in claim 1 is characterized in that described flexure strip (1) is uniform cross section rectangular shape or equal strength trapezoidal shape.
3. overarm wall type Yarn tension detection apparatus as claimed in claim 1 is characterized in that described magneto-dependent sensor (5) is two a multiple array configuration.
4. cantilever beam type yarn tension detection apparatus as claimed in claim 1 is characterized in that described magnetic (4) is two groups of single heads or double end form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100455399A CN101382464A (en) | 2007-09-03 | 2007-09-03 | Cantilever beam type yarn tension detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100455399A CN101382464A (en) | 2007-09-03 | 2007-09-03 | Cantilever beam type yarn tension detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101382464A true CN101382464A (en) | 2009-03-11 |
Family
ID=40462421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100455399A Pending CN101382464A (en) | 2007-09-03 | 2007-09-03 | Cantilever beam type yarn tension detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101382464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706340A (en) * | 2009-09-23 | 2010-05-12 | 上海贵宝机电有限公司 | Cantilever-type dynamic tension sensor |
-
2007
- 2007-09-03 CN CNA2007100455399A patent/CN101382464A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706340A (en) * | 2009-09-23 | 2010-05-12 | 上海贵宝机电有限公司 | Cantilever-type dynamic tension sensor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090311 |