Abstract:
A gin process control system including sensing stations for sensing the physical properties of cotton as it progresses through a gin. A moisture sensor determines, over a wide range of values, the amount of moisture in the cotton. A quality monitor determines the color of the cotton, color distribution, and the amount and type of trash or other impurities which may be entrained in the cotton. A micronaire unit determines both micronaire and cotton maturity. A fiber length tester provides information on the length distribution, breaking strength, and elongation of the cotton fibers. Cotton samples are gathered from the gin flow stream and presented to the sensing stations in a variety of manual, semi-automated, and automated fashions. In a fully automated unit, the sensing stations are connected directly to the gin. The sensing stations are also in communication with the gin process control system, which uses the data from the sensing stations to automatically control the operation of the gin. Alternately, the sensing stations are assembled into a stand-alone unit. In a semi-automatic version of the stand-alone unit, samples are manually gathered and presented to the unit in cassettes for automated subsampling and testing by the sensing stations. In this semi-automatic version, the sensing stations may be in a configuration identical to that of the fully automatic, on-line unit. In a manual version of the stand-alone unit, the samples are manually gathered and manually placed into contact with the various sensing stations. The information reported by the stand-alone units can be used to manually control the operation of the gin.
Abstract:
An apparatus that individualizes fibers within a feed stream without breaking the fibers. A first stage, having first pinch rollers, receives the feed stream and provides it to a second stage. The second stage receives the feed stream from the first stage, and provides a thinned stream to a third stage. Second stage apron belts draw the feed stream under tension from the first stage into the second stage. Second pinch rollers draw the feed stream under tension from the second stage apron belts and provide the thinned stream to the third stage. The third stage receives the thinned stream from the second stage and provides individualized fibers. Third stage apron belts draw the thinned stream under tension from the second stage into the third stage. Third pinch rollers draw the thinned stream under tension from the third stage apron belts and provide the individualized fibers.
Abstract:
A fiber property testing system for classing fiber samples based on properties of the fiber samples. Loading means receive unloaded cassettes and load the fiber samples into the unloaded cassettes to produce loaded cassettes. Testing means receive the loaded cassettes, remove fiber subsamples from the loaded cassettes, and perform property testing measurements on the fiber samples and the fiber subsamples. Unloading means unload the tested fiber samples from the loaded cassettes to produce the unloaded cassettes. Conveyance means receive the loaded cassettes from the loading means and deliver the loaded cassettes to the testing means, and receive the unloaded cassettes from the unloading means and deliver the unloaded cassettes to the loading means. Control means control delivery and receipt of the loaded cassettes and the unloaded cassettes, receive and correlate information generated during the property testing measurements, and class the fiber samples based on the information.
Abstract:
A gin process control system including sensing stations for sensing the physical properties of cotton as it progresses through a gin. A moisture sensor determines, over a wide range of values, the amount of moisture in the cotton. A quality monitor determines the color of the cotton, color distribution, and the amount and type of trash or other impurities which may be entrained in the cotton. A micronaire unit determines both micronaire and cotton maturity. A fiber length tester provides information on the length distribution, breaking strength, and elongation of the cotton fibers. Cotton samples are gathered from the gin flow stream and presented to the sensing stations in a variety of manual, semi-automated, and automated fashions. In a fully automated unit, the sensing stations are connected directly to the gin. The sensing stations are also in communication with the gin process control system, which uses the data from the sensing stations to automatically control the operation of the gin. Alternately, the sensing stations are assembled into a stand-alone unit. In a semi-automatic version of the stand-alone unit, samples are manually gathered and presented to the unit in cassettes for automated subsampling and testing by the sensing stations. In this semi-automatic version, the sensing stations may be in a configuration identical to that of the fully automatic, on-line unit. In a manual version of the stand-alone unit, the samples are manually gathered and manually placed into contact with the various sensing stations. The information reported by the stand-alone units can be used to manually control the operation of the gin.
Abstract:
A device for measuring properties of fiber in a sliver is constructed with a first and second curved aluminum guide piece that is coated with either Teflon or ceramic. The guides compress the sliver of fiber. A Xenon bulb provides light which passes through a first transparent window located in the first guide piece. The light then passes through the sliver of fiber and out of a second transparent window located in the second curved guide piece. The light is then focused by optics upon a charge coupled device camera. The charge coupled device camera uses an array of pixels to create an image of the compressed sliver of fiber. A pulse generator provides simultaneous trigger signals to the Xenon bulb and the camera so that the image of the sliver of fiber is created at the same time as the light is produced. Processing means identify patterns of dark pixels in the array as trash, neps, seed coat neps, and other impurities in the fiber by comparing the patterns of pixels in the array with patterns in a lookup table.
Abstract:
A gin process control system including sensing stations for sensing the physical properties of cotton as it progresses through a gin. A moisture sensor determines, over a wide range of values, the amount of moisture in the cotton. A quality monitor determines the color of the cotton, color distribution, and the amount and type of trash or other impurities which may be entrained in the cotton. A micronaire unit determines both micronaire and cotton maturity. A fiber length tester provides information on the length distribution, breaking strength, and elongation of the cotton fibers. Cotton samples are gathered from the gin flow stream and presented to the sensing stations in a variety of manual, semi-automated, and automated fashions. In a fully automated unit, the sensing stations are connected directly to the gin. The sensing stations are also in communication with the gin process control system, which uses the data from the sensing stations to automatically control the operation of the gin. Alternately, the sensing stations are assembled into a stand-alone unit. In a semi-automatic version of the stand-alone unit, samples are manually gathered and presented to the unit in cassettes for automated subsampling and testing by the sensing stations. In this semi-automatic version, the sensing stations may be in a configuration identical to that of the fully automatic, on-line unit. In a manual version of the stand-alone unit, the samples are manually gathered and manually placed into contact with the various sensing stations. The information reported by the stand-alone units can be used to manually control the operation of the gin.
Abstract:
A fiber testing instrument having a fiber loading station that is sized to accommodate a fiber sample within a desired size range, a fiber extraction device for extracting a portion of the fiber sample for a first battery of fiber tests, a fiber transport device for conveying at least the remaining portion of the fiber sample, and a micronaire chamber for receiving the conveyed fiber sample, where the micronaire chamber is sized to test any fiber sample within the desired size range.
Abstract:
A fiber testing instrument having a fiber loading station that is sized to accommodate a fiber sample within a desired size range, a fiber extraction device for extracting a portion of the fiber sample for a first battery of fiber tests, a fiber transport device for conveying at least the remaining portion of the fiber sample, and a micronaire chamber for receiving the conveyed fiber sample, where the micronaire chamber is sized to test any fiber sample within the desired size range.
Abstract:
An apparatus measures moisture content of cotton based upon rates of electrical charges flowing through the cotton. The apparatus includes a moisture sensor having first electrodes, second electrodes, and ground electrodes which are interdigitated between the first and second electrodes. The apparatus also includes a moisture content determination circuit that provides first electrical charges to the first electrodes, and second electrical charges to the second electrodes. The moisture content determination circuit determines the rate of electrical charge flowing from each of the first and second electrodes through the cotton to the ground electrodes, and determines the moisture content of the cotton based upon the rates of electrical charges flowing through the cotton. By thus applying first electrical charges to the first electrodes and second electrical charges to the second electrodes, the apparatus accurately measures the moisture content of the cotton over a wide range of moisture contents. This wide range is achieved by setting the first electrical charges on the first electrodes to a level which is optimal for moisture levels at the upper end of the desired measurement range, and by setting the second electrical charges on the second electrodes to a level which is optimal for moisture levels at the lower end of the desired measurement range.
Abstract:
A method and apparatus are disclosed primarily for measuring the linear density of a sliver of fibrous strands (e.g. textile) as they are drawn through a trumpet on a processing machine. The measurement is made by detecting the naturally occurring acoustic emissions or signals generated by the frictional and compressive forces between the fibers and between the fibers and the wall of the trumpet as the sliver is drawn through the trumpet. The intensity of the acoustically emitted signal is proportional to the density of the sliver passing through the trumpet. These acoustic emissions are detected by a microphone which convert the acoustic signals to an electronic signal which is amplified and electronically processed to indicate the density of the sliver and may be used to control the textile machine and furnish diagnostic data.