GB2210909A - Method for detecting the raising result in raising and raising machine - Google Patents
Method for detecting the raising result in raising and raising machine Download PDFInfo
- Publication number
- GB2210909A GB2210909A GB8818342A GB8818342A GB2210909A GB 2210909 A GB2210909 A GB 2210909A GB 8818342 A GB8818342 A GB 8818342A GB 8818342 A GB8818342 A GB 8818342A GB 2210909 A GB2210909 A GB 2210909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pile
- raising
- cloth web
- web
- cloth
- 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
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000004744 fabric Substances 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 241001417494 Sciaenidae Species 0.000 claims abstract description 6
- 239000004753 textile Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 230000001680 brushing effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/367—Fabric or woven textiles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
- G01N21/8983—Irregularities in textured or patterned surfaces, e.g. textiles, wood for testing textile webs, i.e. woven material
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Wood Science & Technology (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
In order to detect the raising result in the raising of a cloth web 4 on a raising machine such as the tambour type, by objective measurement, the density, thickness and height of a pile structure 3 produced on the web 4 are determined by the combination of a mechanical feeder 1 and an optical scanner 14, 15, 16. The feeler 1 is weighted so that it descends and compacts the pile 3 in a zone 11 and the amount of descent ( DELTA h) into the pile 3 is sensed by a movable armature 8 of a detector 9. The optical scanner provides a light beam 14 between a transmitter and a receiver 16 which are mounted on a movable support 17. The beam 14 is directed substantially tangentially of the web base 13 and on to the pile 3 which is opened over a deflecting edge 12. And the increase of the light intensity as the beam 4 is moved upwards by moving support 17 allows the height and density of pile 3 to be determined. The radius of curvature of edge 12 is adapted to the cloth web type and for pile type so that a clear optical signal can be obtained. <IMAGE>
Description
"Method for detecting the raising result in raising and raising machine"
The invention relates to a method for detecting the raising result in the raising of a textile cloth web treated on a raising machine, especially a tambour raising machine.
It further relates to a raising machine for producing a pile on a textile cloth web.
The raising effect on a tambour raising machine comprising pile and counter-pile rollers can be influenced by modification of the speed of the treated cloth web, by modification of the circumferential speed of the tambour, by modification of the relative speeds of pile and counter-pile rollers, by selection of the cloth web tension, by moistening or drying of the cloth web, etc. It has therefore been attempted to monitor at least some of the parameters which influence the raising result with the aid of special regulator and indicator devices (see DE-PS- Nos.
971,415 and 1,145,573). The known devices permit of setting the raising energy in advance by adjustment of the cloth tension and the rotation rates of the individual elements of the machine in a specific manner, but the raising effect can still however be judged only subjectively on the treated cloth web, as before. Since an expert is not always available who can expertly judge the raising result, a remedy has been obtained by detecting the raising result indirectly by preliminary determination of the raising energy.The textile cloth webs to be treated with a raising machine differ however frequently from one to another in the measure of the dryness, in the thickness of the fibres, by sliglit differences in the twist within the individual thread, in the nature of the weave, etc.; especially if natural textile fibres are used exact standards cannot be maintained in practice. Finally therefore for the setting of each raising machine the judgement of the raising result is indispensible.
The invention is based upon the problem of producing a method for the objective measurement of the raising result in raising on a raising machine. The method should be capable of substantially automatic execution and deliver its results uninfluenced by subjective judgement. The solution in accordance with the invention consists, for the method as initially stated, in that the pile structure produced by the raising on the cloth web is measured by the combination of mechanical scanning of the pile thickness and optical scanning of pile height and pile density.A corresponding raising machine in accordance with the invention is characterised by a device for the measuring detection of the pile structure produced by raising of the cloth web, with the aid of the combination of a pile thickness measurement with a mechanical sensor and a measurement of pile density and pile height with an optical sensor. Improvements and further developments of the invention will be stated in the
Sub-Claims.
In accordance with the invention the pile structure of a textile cloth web - generally of a sub-stratum - achieved by raising can be measured by the combination of a measurement of thickness under defined loading and an optical scanning of pile height and thickness. If a pile is produced or erected by brushing on a sub-stratum, as- for example in the course of the production of corduroy or weft pile fabric, the instruction according to the invention is also valid for brushing methods and corresponding brushing machines. In brushing, in which an existing pile finally is to be erected or directed substantially in a specific manner, in general the pile thickness is not changed.The measuring apparatus and measuring method according to the invention can therefore be simplified, in that the mechanical scanning of the pile thickness is not carried out at all or is carried out only for an initial measurement.
In a similar manner in use in raising on a raising machine it will frequently suffice to scan the pile height and pile density optically, if the compressibility of the - possibly growing - pile does not change appreciably in the course of raising, from raising pass to raising pass. In this case too the compressibility can be measured separately or ascertained only in the first raising pass.
In accordance with the invention the compressibility of the pile can be determined under a pre-load and the geometric structure of the pile can be determined for the ascertainment of parameters of surface treatment in raising (and brushing) which are specific to weave and fibre. For every treatment pass the starting and final values can be detected objectively, so that the production can be examined by measurement on the final product and optimum machine adjustments can be effected accordingly. In this way it is also possible to optimalise the duration of treatment or the number of treatment passes until the reaching of a predetermined raising result.In the case of equal preconditions of the sub-stratum, according to types of weave and fibre, fibre fineness, staple length, etc., values experimentally fixed in accordance with the invention can be reproduced, in that the values of cloth tension, rotation rate, relative speeds etc. as set in the original measurement are set.
By the measurement of the raising result - continuously or after each pass - it is possible to correct the energy values of raising, in order to keep the production output per pass constant, without need - as before - of a practised raising foreman who effects the adjustments according to subjective judgement criteria, such as feel and appearance of the cloth. Thus it is possible in accordance with the invention to ascertain relationships making the raising effect calculable and regulable, on the basis of measurements. In the present context, for reasons of simplification there will frequently be mention only of raising and raising machines, even if brushing and corresponding brushing machines are also meant.
Details of the invention will be explained by reference to the diagrammatic representation of an example of embodiment, wherein:- FIGURE 1 shows a thickness feeler in section;
FIGURE 2 shows an optical pile height and pile density sensor.
The pile thickness measuring appliance according to
Figure 1 consists according to the example of embodiment of
a feeler 1, to be formed for example as a feeler roller,
which is pressed under a defined application pressure of a
weight 2 against the pile 3 of a cloth web 4. The feeler 1
is for example secured on the free end 5 of an arm 7 which
is held pivotably in a bearing 6 at the opposite end. With
the free end 5 of the arm 7 moreover the movable armature 8
or the like of a distance detector 9, for example inductive,
is secured.
When in operation the cloth web 4 slides in the
direction of the arrow 10 under the feeler 1 or the latter
possibly rolls on the cloth web 4, the pile 3, in dependence
upon its properties and upon the weight of the feeler 1, is
compacted beneath the latter in a compression zone 11, in
such a way that the feeler is pressed by a specific amount ah into the pile 3, which has the total height h. A movement
of the armature 8 of the distance detector 9, which can
deliver a signal corresponding to the amount Ah, for example
electrically, corresponds to the amount of descent of the feeler 1 into the pile 3.
In the measuring appliance for the optical scanning of
the pile 3 of the cloth web 4 transported in the direction
of the arrow 10, as illustrated in Figure 2, the web is
deflected on an edge 12 in such a way that the pile 3 can be
transilluminated for the optical measurement with a light
beam 14 directed tangentially to the base 13 of the cloth
web. The light beam 14 is here emitted by a transmitter 15 which is directed on to a receiver 16. Transmitter 15 and receiver 16 are secured on a support 17 which is mounted for upward and downward movement in the direction of the arrow 18 approximately perpendicularly of the direction of the light beam 14 and perpendicularly of the surface of the cloth web base 13.The light beam 14 can shine, as stated, against the direction 10 of transport of the cloth web 4 and also - on interchange of transmitter 15 and receiver 16, as a light beam 14' in the direction of cloth web transport.
Due to the deflection of the cloth web 4 on the edge 12 the pile 3 is opened and can be trans illuminated tangentially by the light beam 14. In a preferred example of embodiment the light beam 14 is adjusted (centrally) between transmitter 15 and receiver 16 initially - for example by input of a previously measured initial cloth thickness - so that it is directed at the edge 12 parallel or tangentially to the cloth web base 13. For this purpose the previously measured cloth web thickness ho may be supplied. For the pile scanning in accordance with the invention, starting at the initial adjustment, the light beam 14 is moved upwqards by raising of the support 17 in the direction of the arrow 18, so that the light beam 14 travels the pile height h, until the full light intensity above the pile 3 - is reached.The increase of the light intensity received by the receiver 16 from the transmitter 15 is a measure for the build-up of the pile 3. The increase of the light intensity with the movement of the light beam 13 in the direction of the arrow 18 indicates how the pile changes from the cloth web base 13 to the extreme pile tip. In the raising a gradual reinforcement of the signal measured in the receiver 16 can occur. In brushing the signal in the receiver can remain almost constant in the vicinity of 0 until the pile tip and then rise to the maximum value above the pile. In between there are naturally all variations for the various types of raising and pile.
With the measured values of the pile thickness increase under a specific pre-load (weight 2) adapted to the material and of the pile density measured optically over the pile height it is possible to define the increase of the pile per working pass, just like the final condition of the pile processing. The measurement results can be used for the reproducible setting of a raising or brushing machine, they can however also be taken for the direction regulation of the machine concerned. In this connection hiherto the raising energy was determined by adjustment of the cloth tension and the rotation rates, in order to arrive at a result which was judgeable only subjectively. In contrast it is rendered possible by the invention to detect the effect of the raising or brushing, that is the surface treatment, by measurement and to use the measured value for the regulation of rotation rates and cloth tensions.
The measuring devices as represented in the drawing represent advantageous examples of embodiment. However other formations or modifications of the examples of embodiment also pertain to the invention. By way of example the radius r of curvature of the edge 12 can be adapted to the cloth web type and/or pile type in each case so that in the movement, preferably parallel displacement, of the light beam 14 in relation to the cloth web base 13 the clearest possible signal is obtained for the modification of the pile density in the raising or lowering of the light beam 14 between the level defined by the cloth web base 13 and the pile tips 19.
Claims (12)
1.) Method for detecting the raising result in the raising of a textile cloth web (4) treated on a raising machine, especially a tambour machine, characterised in that the pile (13) produced by raising on the cloth web (4) is measured by the comnbination of mechanical scanning of the pile thicjness and optical scanning of the pile height and pile density.
2.) Method according to Claim 1, characterised in that the measurement results are used directly for the regulation of the raising machine.
3.) Method according to Claim 1 or 2, characterised in that the pile density is detected with the aid of a light beam (14) which transilluminates the pile (3), opened over a deflector edge (12), approximately tangentially to the cloth web base (13).
4.) Method according to Claim 3, characterised in that the light beam (14) is moved to and fro between a position (ho) directly on the cloth web base (13) and a position (h) outside the pile.
5.) Method according to Claim , characterised in that the pile thickness is measured with the aid of a feeler (1) resting with defined application pressure (2) on the cloth web (4).
6.) Raising machine for producing a pile (3) on a textile cloth web (4), especially tambour raising machine, characterised by a device for the measuring detection of the pile (3) produced by raising of the cloth web (4) with the aid of the combination of a pile thickness measurement with a mechanical feeler (1) and a pile density and height measurement with an optical sensor (14).
7.) Raising machine according to Claim 6, characterised in that for the mechanical sensing of the thickness a feeler (1) which is fixed or in roller form with distance detcctor (9) with defined - application pressure (2) is provided.
8.) Raising machine according to Claim , characterised in that for the optical scanning of the pile density and height an optical scanning system is provided having a light beam (14) extending parallel or contrarily of the direction (10) of running of the cloth web between a transmitter (15) and a receiver (16) and in that the light beam (14) is directed approximately tangentially of the cloth web base (13) on to the pile (3) which is opened over a deflecting edge (12) for the cloth web (4).
9.) Raising machine according to Claim 8, characterised in that the optical scanning system is arranged movably, by a distance corresponding to the maximum pile density, in relation to the deflector edge (12).
10.) Raising machine according to Claim 8 or 9, characterised in that the radius (r) of curvature of the deflector edge (12) is adapted to the cloth web type and/or pile type in such a way that in the movement (18), preferably parallel displacement, of the light beam (14) in relation to the cloth web base (13) the clearest possible signal is obtainable for the variation of the pile density from the cloth web base (13) to the pile tip (19).
11.) Method of detecting the raising result in a textile web raising machine, substantially as described with reference to the accompanying drawings.
12.) Raising machine for textile web, substantially as described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3734454 | 1987-10-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8818342D0 GB8818342D0 (en) | 1988-09-07 |
| GB2210909A true GB2210909A (en) | 1989-06-21 |
| GB2210909B GB2210909B (en) | 1991-08-14 |
Family
ID=6338142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8818342A Expired - Fee Related GB2210909B (en) | 1987-10-12 | 1988-08-02 | Method for detecting the raising result in raising and raising machine |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2621615B1 (en) |
| GB (1) | GB2210909B (en) |
| IT (1) | IT1227243B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992009517A1 (en) * | 1990-11-28 | 1992-06-11 | Techni Drive Ltd. | Measurement of material length |
| EP0631136A2 (en) * | 1993-06-23 | 1994-12-28 | Zellweger Luwa Ag | Apparatus for measuring the mass or cross-sectional density of fibre bands and use of the apparatus |
| CN107478534A (en) * | 2017-08-04 | 2017-12-15 | 朱桂娟 | Stiffness test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB890720A (en) * | 1958-05-06 | 1962-03-07 | British Rayon Res Ass | A method and means for testing the degree of raise of a raised fabric |
| GB952886A (en) * | 1959-12-21 | 1964-03-18 | Sdruzeni Podniku Textilniho St | Feeler apparatus |
| GB1105871A (en) * | 1964-06-04 | 1968-03-13 | Tomlinsons Rochdale Ltd | Improvements in or relating to wire card raising machine for textile fabric |
| US4427855A (en) * | 1981-03-28 | 1984-01-24 | Carl Schmale Kg | Pile-gap sensor, especially for deep-pile carpet |
| EP0123602A1 (en) * | 1983-04-20 | 1984-10-31 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." | Precision measuring method and device for the heights of rotor blades |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971415C (en) * | 1954-06-11 | 1959-02-19 | Fr Drabert Soehne Maschinenfab | Auxiliary device for scratching machines |
| DE1145573B (en) * | 1960-09-01 | 1963-03-21 | Franz Mueller Maschinenfabrik | Control and display device for gouging machines |
| FR2573101A1 (en) * | 1984-11-09 | 1986-05-16 | Mach Textiles | Process for the automatic regulation of the working parameters of a napping machine and napping machine automated by means of this process |
-
1988
- 1988-08-02 GB GB8818342A patent/GB2210909B/en not_active Expired - Fee Related
- 1988-09-29 IT IT8822119A patent/IT1227243B/en active
- 1988-10-07 FR FR8813199A patent/FR2621615B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB890720A (en) * | 1958-05-06 | 1962-03-07 | British Rayon Res Ass | A method and means for testing the degree of raise of a raised fabric |
| GB952886A (en) * | 1959-12-21 | 1964-03-18 | Sdruzeni Podniku Textilniho St | Feeler apparatus |
| GB1105871A (en) * | 1964-06-04 | 1968-03-13 | Tomlinsons Rochdale Ltd | Improvements in or relating to wire card raising machine for textile fabric |
| US4427855A (en) * | 1981-03-28 | 1984-01-24 | Carl Schmale Kg | Pile-gap sensor, especially for deep-pile carpet |
| EP0123602A1 (en) * | 1983-04-20 | 1984-10-31 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." | Precision measuring method and device for the heights of rotor blades |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992009517A1 (en) * | 1990-11-28 | 1992-06-11 | Techni Drive Ltd. | Measurement of material length |
| EP0631136A2 (en) * | 1993-06-23 | 1994-12-28 | Zellweger Luwa Ag | Apparatus for measuring the mass or cross-sectional density of fibre bands and use of the apparatus |
| EP0631136A3 (en) * | 1993-06-23 | 1997-03-05 | Luwa Ag Zellweger | Apparatus for measuring the mass or cross-sectional density of fibre bands and use of the apparatus. |
| CN107478534A (en) * | 2017-08-04 | 2017-12-15 | 朱桂娟 | Stiffness test device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8818342D0 (en) | 1988-09-07 |
| IT8822119A0 (en) | 1988-09-29 |
| IT1227243B (en) | 1991-03-27 |
| GB2210909B (en) | 1991-08-14 |
| FR2621615A1 (en) | 1989-04-14 |
| FR2621615B1 (en) | 1990-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960802 |