EP4314809A1 - Verfahren und vorrichtung zur analyse von komponenten einer fasermasse - Google Patents
Verfahren und vorrichtung zur analyse von komponenten einer fasermasseInfo
- Publication number
- EP4314809A1 EP4314809A1 EP22709401.8A EP22709401A EP4314809A1 EP 4314809 A1 EP4314809 A1 EP 4314809A1 EP 22709401 A EP22709401 A EP 22709401A EP 4314809 A1 EP4314809 A1 EP 4314809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- opening
- fiber
- fibers
- fiber mass
- 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.)
- Pending
Links
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
- G01N33/362—Material before processing, e.g. bulk cotton or wool
-
- 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
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
-
- 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
- D01H13/32—Counting, measuring, recording or registering devices
Definitions
- the present invention relates to a method for analyzing components of a fiber mass, the components of the fiber mass comprising fibers, parts of fibers, trash, dust, plant residues and other dirt, and the components of the fiber mass being fed to an opening roller integrated in a housing by means of a feed device and are separated and at least some of the components leave the housing through an outlet opening, enter a feed channel and leave the feed channel again at an opening and the components leaving the feed channel are then fed to a collecting surface and deposited there individually, as well as a device for the analysis of Components of a fiber mass, with an opening roller integrated in a housing, the housing having a feed opening which is associated with a feed device for feeding the fiber mass into the opening roller, the housing also having an outlet opening t, through which at least some of the components of a fiber mass leave the housing, and with a feed channel arranged at the outlet opening, into which at least some of the components enter, and with a mouth of the feed channel, through which these components leave the feed channel again, as well as with a
- Natural fibers such as cotton can be contaminated with non-primary fiber material, which is often commonly referred to as waste.
- Such impurities can e.g. B. shells, seeds, twigs, bark, leaves, dirt or stones.
- the measurement of the non-fiber portion of a fiber sample is carried out in the prior art by separating the fibers in a fiber sample or fiber mass from as large a part of the non-fiber portion in the fiber sample and by weighing or otherwise quantifying the fibers and the waste, separated from the original fiber sample. With the separators used, more or less amounts of fibers remain mixed with the separated waste, making it difficult to determine the total percentage of waste in the original fiber sample.
- a separating device is known from US Pat. No.
- the fiber sample is applied to a surface of a separating cylinder, the separating cylinder rotating in one direction and having a cylindrical surface with pins. Fibers of the fiber sample are engaged with the separation cylinder and retained on the surface of the separation cylinder. Debris not retained by the pins is removed from the fiber sample in a generally downward direction. The dirt that has fallen down from the separating cylinder is collected on a collecting surface. The weight of the waste and the fibers still mixed with the waste collected on the collection surface can be measured with a scale. In one embodiment, the fibers on the collection surface are visually detected with a correction module and an estimated weight of the fibers is subtracted from the weight of the waste and fiber mixture.
- the disadvantage here is that only an estimated quantitative analysis of the proportion of waste present in the presented fiber mass is obtained. A more precise quantitative analysis or even a qualitative analysis of the components contained in the fiber mass is not possible.
- the object of the present invention is to eliminate the disadvantages known from the prior art and in particular to be able to carry out a quantitative, but above all a qualitative analysis of the components of the fiber mass presented.
- a method for analyzing components of a fiber mass is proposed, the components of the fiber mass comprising fibers, parts of fibers, trash, dust, plant residues and other contaminants.
- the components of the fiber mass are fed and separated by means of a feeding device to an opening roller integrated in a housing.
- the feeding device has a Feed trough, which pushes the fiber mass against a feed roller.
- a rotation of the feed roller moves the fiber mass in the direction of the opening roller, where it is gripped by teeth or needles of the rotating opening roller and broken up into individual fibers and the other components of the fiber mass.
- At least some of the components leave the housing through an outlet opening, enter a feed channel which is arranged at the outlet opening and then leave the feed channel again at an opening of the feed channel.
- the components leaving the feed channel are then fed to a collection area and deposited there individually.
- the components are now spread out on the quilt. At least some of the components deposited in this way on the collecting surface are recorded optically and analyzed with regard to their type and condition. Due to the individual, spread out deposit of the components on the collecting surface, the components can be visually recognized individually. For example, it can be determined whether, which and how many components are on the quilt or in a specific section of the quilt.
- the components are preferably located at a distance from one another or with only a small overlap on the screen surface.
- Each individual optically recognized component can thus be examined and evaluated.
- the signals of the optical detection device such as a camera or a scanner, an electronic data processing system, z. B. a computer supplied.
- the components are recognized, counted or measured, for example. In this way, information about the composition of the fiber mass examined can also be obtained.
- the individual components are identified, for example, by comparing the components detected by the optical detection device with typical components of a fiber mass stored in a database. This makes it possible to determine whether the component is, for example, a whole fiber or only part of a fiber, dust or plant residues such as parts of stems, leaves or shells.
- the components of the presented fiber mass can be determined very precisely by the isolated, preferably spaced-apart depositing of the components on the collecting surface and the optical recognition of these individual components.
- the further processing of the raw material from which the presented fiber mass was taken is possible in a targeted and high-quality manner.
- technology information can be obtained in real time, which improves an adjustment of the machine settings on the following machine, for example a card or combing machine.
- Information relating to the yarn to be produced can be obtained at a very early stage. Information on probable quality problems in further processing is already provided at the beginning of the process.
- the type and nature of the fibers and partial fibers are analyzed with regard to material, fiber length, neps, fiber crimping, fiber fineness and/or a mixing ratio of different fibers in the fiber mass.
- the components of the examined fiber mass can thus be determined very precisely. It can be determined which material, particularly in the case of synthetic fibers, is contained in the fiber mass or what the condition of the material contained is. This gives indications of an optimal further treatment of the fibers in further processing. For example, better sorting or mixing of different batches can take place. It may also turn out that the presented fiber mass is, for example, better suited for spinning on a rotor spinning machine or a ring spinning machine or that the raw material of the examined fiber mass should be subjected to additional cleaning steps.
- the fiber mass is removed, in particular automatically, as fiber tufts, for example from a bale or as a sliver, for example from a sliver can, preferably sucked and at least partially fed to the opening roller.
- part of the sliver deposited in the sliver can is removed from the sliver can and fed to the feed device and the opening roller.
- the fiber sliver can, for example, be a fiber sliver produced on a card.
- fiber tufts are sucked off a bale, for example at a bale opener, and fed to the feeding device and the opening roller.
- the removal takes place in particular with a suction device which sucks in the fiber mass based on the Coanda effect. This ensures that the fibers are not damaged and that fiber material that exactly corresponds to the raw material can be presented to the analysis device. Furthermore, it is advantageous if no negative pressure is applied to the mouth of the feed channel and the components are thereby detached from the opening roller without negative pressure. Suction from outside the feed channel does not therefore have such an effect on the feed channel that it makes a significant contribution to the detachment of the fibers and other components from the opening roller. As a result, the components are detached from the opening roller without vacuum and then enter the feed channel. As a result, the components of the fiber mass can then be deposited on the collecting surface without having previously been exposed to forces which would have changed the fibers or the dirt, for example due to mechanical influences on the edges or surfaces of the housing or the feed channel.
- the collection surface is moved and the components placed on it are transported in the direction of a removal point and disposed of there.
- This allows a continuous analysis of the components of the fiber mass.
- the components are placed on the moving collection area and at the same time moved away from the place where they are placed. This creates space for the arrival of the next components of the fiber mass on the collection surface.
- the deposited components of the fiber mass are removed from the collection surface. This can be done, for example, by using a wiper or by eliminating the need to vacuum the collecting surface and thus detaching the components from the collecting surface.
- a device according to the invention for analyzing components of a fiber mass has a rotatable opening roller integrated in a housing.
- the housing includes a feed opening, which is assigned a feed device for feeding the fiber mass into the opening roller.
- the housing further comprises an exit opening through which at least some of the components of a fiber mass leave the housing.
- a feed channel is arranged at the outlet opening, into which at least some of the components enter and leave it again at a mouth of the feed channel.
- a collecting surface is arranged following the mouth of the feed channel, on which the components leaving the feed channel are deposited individually.
- an optical analysis device is assigned to the collecting surface. With the optical analysis device, at least some of the components placed on the collection surface are optically recorded and analyzed with regard to their type and nature.
- the optical analysis device is not only able to identify individual fibers or dirt particles, but also to evaluate their quality. This creates a device that can replace costly laboratory tests, since the analysis can be carried out directly at the point where the raw material, which is intended for further processing, is located. In addition, it is thus possible not only to determine quantitative proportions in the fiber mass presented, but also to make statements about how the fibers or the dirt particles, in particular trash, dust, plant residues and other dirt, look and so that significantly more far-reaching consequences can be taken in the further processing of the raw material than before.
- a dirt-separating opening is arranged in the housing of the opening roller between the feed opening and the outlet opening. This achieves a cleaning of the supplied fiber mass from, for example, husk particles and other dirt particles. Analysis of the actual fibers as well as the analysis of the other components such as trash, dust, plant residues and other dirt can be carried out separately from each other.
- This further optical analysis device can analyze the components separated there.
- the optical analysis device includes a camera and an evaluation device.
- the camera creates an image of the components placed on the quilt.
- These image signals are transferred to the evaluation device, for example a computer, in which the image signals are evaluated. They are compared, for example, with images stored there, thus enabling the stored components to be recognized.
- the deposited components can thus be counted and classified, from which it can be determined what the quality of the submitted fiber mass and thus the raw material from which the submitted fiber mass was taken is.
- the feeding device is assigned a suction device in order to remove the fiber mass, in particular automatically, as fiber tufts, for example from a fiber bale, or as a sliver, for example from a sliver can, and at least partially remove it from the opening roller to be able to deliver.
- the suction device can work with the Coanda effect, for example. As a result, the fiber mass is removed very gently from the sliver can without changing the composition of the fiber mass. In particular, it is avoided that existing fibers are comminuted and thus incorrect information about the composition of the fiber parts in the fiber mass would be obtained.
- the suction device works automatically, it is able to get close to the fiber mass to be analyzed or its fiber bale or sliver can and remove the fiber mass from there independently, for example guided on a spinning machine or equipped with its own driving device. It is also advantageous if the collection surface has a drive.
- the collecting surface is preferably a sieve apron or sieve roller which has a perforation. A collection surface of almost any length can be created by means of a sieve apron or a sieve roller. The components thus have sufficient opportunity to lie motionless. The components are held on the collecting surface by the suction force, which acts through the perforated collecting surface. In contrast, the sieve roller has the advantage that it takes up less installation space.
- the drive operates the collection surface continuously so that a very large number of components can be examined in a short time.
- a fixed sieve can also be used, onto which the components for the analysis are fed. After the examination, the sieve is cleaned and is available for further examination.
- the collecting surface is assigned a suction device with a suction channel with at least one suction opening.
- the collection surface is located between the suction port and the deposited components of the pulp. In the area of the suction opening, a negative pressure is created on the collection surface. The suction force acts through the collection surface and thereby holds the components on the collection surface.
- a removal device is assigned to the collection area at a removal point in order to remove the components from the collection area.
- the removal device can be a wiper, for example, which wipes the components off the collection surface.
- it can also be formed by the end of the suction opening, since in the area in which the suction force no longer acts on the collecting surface, there is also no longer any holding force acting on the components.
- the components will fall off the collecting surface and, for example, be guided into a container that is available in the area of the collecting surface.
- the method according to the invention and the corresponding device allow the analyzes to be carried out more quickly, at lower cost and with a much larger quantity of sample, which reduces the confidence interval.
- a rapid qualitative analysis of the components contained in the fiber mass can be carried out.
- FIG. 1 shows a side view of a device according to the invention
- FIG. 2 shows a side view of a further device according to the invention
- Figure 3 is a plan view of the device according to Figure 2 and
- FIG. 4 shows a top view of part of a spinning plant with several devices according to the invention.
- FIG. 1 shows a side view of a device 1 according to the invention for analyzing components of a fiber mass 2.
- Components of the fiber mass 2 include fibers 3, parts of fibers and impurities 7 such as trash, dust, plant residues and other impurities.
- the fibers 3 of the fiber mass 2 for example a so-called draw frame sliver or card sliver or parts thereof, are separated by means of a rotating feed roller 4 of a faster rotating opening roller 5 fed.
- the opening roller 5 is arranged in an opening roller housing 6 .
- the feed roller 4 is located at a feed opening 9 of the opening roller housing 6.
- the fiber mass 2 is introduced into the area of the opening roller 5 and the fibers 3 of the fiber mass 2 are separated by teeth or needles, which are arranged on the periphery of the opening roller 5, isolated. Impurities 7, which are in the fiber mass 2, are separated at a dirt separation opening 8. The fibers 2 themselves stick to the circumference of the rotating opening roller 5 and are accelerated.
- the fibers 3 After the fibers 3 have reached a certain speed, they become detached from the rotating opening roller 5 in the area of an outlet opening 10 of the opening roller housing 6 due to the acting centrifugal force.
- the fibers 3 enter a feed channel 11 and emerge from the feed channel 11 in a mouth 12 of the feed channel 11 .
- the fibers 3 then meet a collecting surface 23 of a screen roller 13 .
- This vacuumed area is the collection surface 23, to which the fibers 3 adhere to the surface of the vacuumed screen roller 13 by means of the suction force of the suction channel 21.
- the mouth 12 is designed in such a way that it is not suctioned.
- the mouth 12 is therefore not in the immediate vicinity and effect of the suction through the suction channel 21.
- the fibers 3 located in the feed channel 11 are thus detached from the opening roller 5 without the effect of negative pressure.
- the orifice 12 is so large and so positioned that no negative pressure which is present on the collecting surface 23 can have an effect as far as into the feed channel 11 . This ensures that the fibers 3 can be detached from the opening roller 5 largely individually and reach the collecting surface 23 .
- the suction channel 21 is arranged inside the screen roller 13, ie on the opposite side of the surface on which rest the fibers 3.
- the suction channel 21 is connected to a suction source, not shown.
- the perforation makes the screen roller 13 air-permeable so that the suction channel 21 generates a vacuum on the surface of the screen roller 13 according to the indicated arrows and the fibers 3 thus adhere to the surface of the screen roller 13 .
- the fibers 3 are separated, i. H. deposited on the screen roller 13 in the area of the suction channel 21 with the greatest possible distance from one another and with as few overlaps as possible.
- the fibers 2 leave the collection surface 23 on the screen roller 13 at a removal point 22.
- the fibers 3 detach there if transported together with the rotating screen roller 13 to the end of the suction channel 21, fall off the screen roller 13 due to the lack of suction force of the suction channel 21 and fall into a container 16.
- the impurities 7 separated at the dirt separation opening 8 of the opening roller housing 6 fall onto a collecting surface 23' of a belt 31.
- the collecting surface 23* is not vacuumed in the present exemplary embodiment.
- a suction device could also be arranged, which sucks the belt 31 from below if it is perforated and thus keeps the impurities 7 on the belt 31 in the region of the suction device.
- the impurities 7 remain on the collecting surface 23* and can be analyzed there.
- the collecting surface 23' is driven and transports the impurities 7 in the direction of one of two deflection rollers 15. At the end of the transport, the impurities 7 fall into a container 16'.
- the fiber mass 2 is fed into the feed roller 4 with a suction device 18 .
- the fiber mass 2 is guided through a suction pipe 19 and brought into the area of the feed roller 4 .
- a suction flow in the suction pipe 19 is generated in the present embodiment by a Coanda nozzle 20 by air blown into the Coanda nozzle 20 and thus the suction flow in the suction pipe 19 is generated.
- the suction flow pulls the fiber mass 2 out of the sliver can 17 and conveys it to the feed roller 4. After enough fiber mass 2 has been removed, the fiber mass 2 is separated and the suction device 18 can be used for further suction.
- the suction device 18 can either be arranged in a stationary manner on the device 1 and the fiber mass 2 is brought into the area of the suction device 18 , for example by placing the sliver can 17 under the suction device 18 .
- it can also be mobile, which means that the suction device 18 is brought close to the fiber mass 2 on a machine of a spinning plant as required and carries out an analysis of the fiber mass 2 there together with the device 1 .
- the analysis of the components of the fiber mass 2 is carried out with an optical analysis device 14.
- the optical analysis device 14 comprises two cameras 28 and an electronic data processing system, for example a computer 29 in the exemplary embodiment in FIG are supplied by the cameras 28 are evaluated. For example, images taken by the cameras 28 are compared with images in a database. From this it can be determined what type the fibers 3 or the impurities 7 are.
- the length of the fibers 3 lying on the collecting surface 23 or 23' can be determined in order to be able to determine whether the fibers 3 are complete or only parts of fibers 3 are involved.
- the number of fibers 3 and impurities 7 found can also be determined, since the fibers 3 and the impurities 7 are isolated on the collection surface 23 or 23*.
- FIG. 2 shows a side view of a further device 1 according to the invention.
- a perforated and air-permeable screen belt 13' with deflection rollers 15 is provided here.
- the suction channel 21 is arranged between the deflection rollers 15 and sucks the perforated sieve apron 13 ′ from below the collecting surface 23 .
- the opening roller housing 6 does not have a dirt separation opening 8 so that both the fibers 3 and the impurities 7 are deposited on the collecting surface 23 .
- the screen apron 13 ′ is transported by the drive of the deflection rollers 15 from the mouth 12 of the feed channel 11 in the direction of a removal point 22 . The transport can take place continuously.
- the sieve apron 13 ′ it is also possible for the sieve apron 13 ′ to be stopped in order to be able to carry out the analysis and the collection of the fibers 3 and impurities 7 on a standing collection surface 23 . During further transport, the fibers 3 and the impurities 7 fall into the container 16 at the removal point 22 and can be disposed of there.
- a single camera 28 of the optical analysis device 14 is sufficient to be able to record all components of the fiber mass 2 and the corresponding data for an evaluation to the computer 29 to be able to send.
- the fibers 3 and the impurities 7 lie as isolated as possible on the collection surface 23. Overlays should be avoided as far as possible.
- FIG. 3 shows a plan view of the device according to FIG. 2.
- the opening roller 5 is arranged in the opening roller housing 6 shown in section.
- the opening roller 5 has a sawtooth wire 25 running spirally on the circumference of the opening roller 5 .
- the sawtooth wire 25 ensures that the fibers 3 are caught and accelerated in the area of the feed opening 9 (FIGS. 1 and 2).
- the fibers 3 reach the feed channel 11. From there they are fed to the moving screen belt 13' and deposited.
- the perforation 24 of the sieve strap 13' is only indicated for reasons of better clarity.
- the suction channel 21 which has a suction opening 33 , is arranged below the collection surface 23 of the sieve apron 13 ′.
- the fibers 3 and impurities 7 lying on the sieve apron 13' are held pneumatically by the negative pressure present in the suction channel 21, which acts through the perforation 24 of the sieve apron 13'.
- the fibers 3 and impurities 7 are detached in the transport direction of the sieve apron 13'. They are finally ejected into the container 16.
- the camera 28 of the optical analysis device 14 is aimed at the upper side of the collection surface 23 and can optically record the fibers 3 and the dirt 4 there.
- the corresponding signals or images are sent to the computer 29 where they are evaluated in order to be able to analyze the components contained in the presented fiber mass 2 .
- FIG. 4 shows a plan view of a part of a spinning plant with several devices 1 according to the invention.
- a bale opener 26 which removes fiber tufts containing fibers 3 from the bales provided and feeds them to a downstream precleaner 27 .
- the fiber tufts are then fed into a mixer 30, in which they are evened out in terms of their composition.
- a card 32 in which the fibers 3 are parallelized.
- the analysis device 1 according to the invention is assigned to the bale opener 26 in the exemplary embodiment in FIG.
- Another analysis device 1 is arranged in the area of the can 17 of the card 32 .
- the respective data from the devices 1 are brought together in the computer 29 and can be used to analyze the composition of the fiber masses 2 on the bale opener 26 and the card 32 with regard to their components.
- the ones from it The knowledge gained can be used for the organization of the spinning plant. Thus, for example, fiber losses or further processing that is less effective for the special fiber mass 2 can be avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Mechanical Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00343/21A CH718505A1 (de) | 2021-04-01 | 2021-04-01 | Verfahren und Vorrichtung zur Analyse von Komponenten einer Fasermasse. |
| PCT/IB2022/051798 WO2022208180A1 (de) | 2021-04-01 | 2022-03-01 | Verfahren und vorrichtung zur analyse von komponenten einer fasermasse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4314809A1 true EP4314809A1 (de) | 2024-02-07 |
Family
ID=80685072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22709401.8A Pending EP4314809A1 (de) | 2021-04-01 | 2022-03-01 | Verfahren und vorrichtung zur analyse von komponenten einer fasermasse |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4314809A1 (de) |
| CN (1) | CN117120839A (de) |
| CH (1) | CH718505A1 (de) |
| WO (1) | WO2022208180A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4678794A1 (de) * | 2024-07-11 | 2026-01-14 | Rieter AG | Prüfeinrichtung und deren prüfverfahren |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5130559A (en) * | 1989-08-26 | 1992-07-14 | Trutzschler Gmbh & Co. Kg | Method and apparatus for recognizing particle impurities in textile fiber |
| US5321496A (en) * | 1990-03-14 | 1994-06-14 | Zellweger Uster, Inc. | Apparatus for monitoring trash in a fiber sample |
| US5383135A (en) * | 1992-12-31 | 1995-01-17 | Zellweger Uster, Inc. | Acquisition, measurement and control of thin webs on in-process textile materials |
| EP0879905A1 (de) * | 1997-05-20 | 1998-11-25 | Jossi Holding AG | Verfahren und Vorrichtung zum Erkennen und Ausscheiden von Fremdstoffen in Fasermaterial |
| DE10214657A1 (de) * | 2001-10-05 | 2003-04-10 | Rieter Ag Maschf | Verfahren und Prüfgerät zum Prüfen von Fasermaterial auf dessen Kennwerte |
| US6870897B2 (en) * | 2001-11-14 | 2005-03-22 | Texas Tech University System | Method for identification of cotton contaminants with x-ray microtomographic image analysis |
| WO2011137554A1 (en) * | 2010-05-06 | 2011-11-10 | Uster Technologies Ag | Method and apparatus for measuring the weight of impurities in a mixed volume of fibers and impurities |
| US8496114B1 (en) * | 2012-06-14 | 2013-07-30 | Uster Technologies Ag | Trash separator |
| CN208803165U (zh) * | 2018-07-13 | 2019-04-30 | 吐鲁番常新纺织有限公司 | 一种自动化异物分离装置 |
| CN110716033B (zh) * | 2019-11-27 | 2025-04-18 | 石河子大学 | 收购环节籽棉杂质快速评估方法和装置 |
-
2021
- 2021-04-01 CH CH00343/21A patent/CH718505A1/de not_active Application Discontinuation
-
2022
- 2022-03-01 WO PCT/IB2022/051798 patent/WO2022208180A1/de not_active Ceased
- 2022-03-01 CN CN202280026249.2A patent/CN117120839A/zh active Pending
- 2022-03-01 EP EP22709401.8A patent/EP4314809A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH718505A1 (de) | 2022-10-14 |
| WO2022208180A1 (de) | 2022-10-06 |
| CN117120839A (zh) | 2023-11-24 |
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