摘要:
In an apparatus for determining fibre lengths and fibre length distribution from a fibre material sample, especially in spinning preparation, collected fibre material is automatically conveyable by a conveyor device, is arranged to be supplied to a take-up device that grips it, is separable from the conveyor device and transportable to at least one rotating combing device, each end region of the collected fibre material protruding from the take-up device being combable by combing device, and subsequently detectable by a measuring device. The apparatus permits within a short time a sample preparation founded on a uniform basis and an accurate measurement of the samples.
摘要:
An arrangement in a spinning preparation machine Is provided. The arrangement has a clothed roll having clothing presenting free ends; flat bar slide elements; clothed flat bars having clothing presenting free ends and cooperating with the clothing of the clothed roll, the flat bars having slide guides which glide on the flat bar slide elements; and a measuring apparatus comprising at least one sensor arranged for detecting a distance between a reference surface and at least one of the free ends of the clothing of the clothed roll and the free ends of the clothing of the clothed flat bars.
摘要:
In a method at a spinning preparation machine, for example a cleaner, opener, carding machine or the like, for cleaning fibre material, especially cotton, an examination of the nature of the trash is carried out, which examination is used for adjustment of at least one adjustable cleaning element, for example a separating blade, cleaning grid or the like. In order to make possible improved and undisrupted production by simple means, the optimum adjustment of the at least one cleaning element for a specific fibre batch is stored in a memory of an electronic control and regulation device and, when the same fibre batch is processed again, the optimum adjustment of the cleaning element is implemented automatically.
摘要:
Automatic modification of volumetric air flow in an apparatus for pneumatically feeding a spinning preparation machine, by means of fibre-flock charging shafts, located upstream of individual spinning preparation machines and connected to a pneumatic fibre-transporting line, the transporting line connected by way of a fibre material feed fan to the fibre-processing machine upstream. A set of characteristic curves describing air flow is stored in a characteristic curve set element; a measurement signal for the pressure difference at the fan and values relating to rotation of the fan are ascertained in a computer unit. The computer unit determines value of the volumetric air flow from the characteristic curves. In the event of departure from a desired value for the volumetric air flow, the operating point for the speed of rotation of the fan is displaced to the desired value.
摘要:
The invention relates to a measuring arrangement for measuring the density of a product by means of microwaves. The measuring arrangement comprises a first microwave resonator, from which, in operation, microwaves enter a product area, and a device for compensating for environmental influences and disturbance variables affecting the measuring signal of the first microwave resonator. According to the invention, the compensation device comprises a second microwave resonator, which is shielded towards the product area with respect to microwave radiation.
摘要:
In a device on a carding machine for setting the working gap between the cylinder and at least one neighbouring roller, which cooperate with one another with a small gap between their cylindrical surfaces (working gap) at the fibre transfer points, the working gap is readjustable to a pre-determined value as a result of changes in dimensions caused by thermal expansion and/or centrifugal forces. In order that in the event of changes in the dimensions of the rollers it is readily possible to set the same or substantially the same gap between neighbouring rollers in a structurally simple way, the temperature of the framework walls carrying the cylinder can be so matched to the working gap by supplying or discharging heat that, in the event of a change in the dimensions of the rollers, the working gap between the cylinder and at least one neighbouring roller is the same or substantially the same.
摘要:
In an apparatus for inspecting and evaluating fibre material, for example a sliver or fleece, an opto-electronic system, is provided across the width of a textile machine and scans the moving fibre material F and converts the measured values into electronic signals. The system is in communication with an image-evaluating device which evaluates the raw data of the system. In order to produce an apparatus that is space-saving and permits a lower overall height a combined with at least the same image quality, three or more imaging devices are provided side by side and, in relation to the unit of width, the number of cameras increases as the distance between objective and fibre sliver decreases.
摘要:
A method of strengthening a conveyable fiber lap in an endlessly circulating conveying device is provided. The method includes conveying the fiber lap using first and second converging rollers, each roller having an outer surface, at least the first roller being provided with profile elements on its outer surface, the profile elements being non-continuous in an axial direction of the first roller; subjecting the fiber lap to a pressure when the fiber lap passes through a gap between the first and second rollers; and strengthening the fiber lap by exerting the pressure by the converging rollers and the profile elements.
摘要:
In a device on a spinning preparation machine, especially a carding machine, cleaner or the like, having a machinery housing, the machine and/or fibber feed and fibber discharge devices are arranged in the interior of the machinery housing. In order that the fibber material located inside a housing can be inspected and checked in a simple manner from outside the housing, without the housing being removed, in the interior of the machinery housing there is at least one electronic camera (video camera) which is associated with the textile fibber material and/or a machine element for displaying an image of the surface of the textile fibber material and/or the machine element.
摘要:
Machine supports are provided for a spinning preparation machine. A machine casing is arranged along the sides of the machine and includes casing elements attached to the supports. The casing elements are arranged to open up or close off openings in the machine casing so that free access is given to at least one side region and one end region of the machine.