摘要:
A skein winder for winding skeins of pre-weighed yarns is disclosed that includes a balance means which has a first platform to receive the yarn bobbin and a variable restoring force acting on the balance means which variable restoring force may be lightened in predetermined increments. A switch means is responsive to unbalance in one direction to initiate rotation of the skein winding spindle and to unbalance in the other direction to stop winding and also to remove a predetermined quantity of restoring force weight automatically.
摘要:
A textile machine producing take-up packages, comprising a storage area for wound take-up packages, a detecting element for measuring the weight of each take-up package to be placed on the tray, a summing element for adding up the measured weights of the take-up packages to be placed on the storage area, and an output element for outputting an output signal if the sum of the measured weights of the take-up packages exceeds a predefined threshold value.
摘要:
Device and process for the automatic elimination of the defective start and end portions from packages of yarn fed to the units of an automatic winder using the same members thereof for reattaching the ends eliminating said portion from them, by suction with the suction nozzles for capturing and moving the ends, for a predetermined length and then joining its ends according to the normal reattachment of the yarn.
摘要:
An apparatus for weighing full yarn packages which are supported on a transport unit which moves along a trackway in the textile plant. The weighing apparatus includes a weighing station which is positioned at a fixed location along the path of travel of the transport unit, and the weighing station temporarily supports the weight of each package on the transport unit and so as to permit the weight of each package to be sensed.
摘要:
In a cop preparation station having a customary thread detector and an additional thread detector the presence or absence of the upper portion of the thread package and optionally of the lower portion of the thread package of a cop is first detected by light barriers or sensors. A suitable thread finding device is then used in dependence on these values which are found.The application also describes the cooperation of the cop preparation station with a rewinding machine.
摘要:
The tension in the rewound thread is modified in programmed manner as a function of the residual thread length still on a copy, the residual thread length being determined from the difference between the total thread length on the copy and the thread length already unwound from the cop. The total thread length on a cop is calculated from the weight of the thread and a calculation factor length per thread weight. For this purpose, the apparatus for performing the method has a weighing cell, which is connected to the control unit of the rewinding means. During the complete rewinding process, the rewinding speed can be kept close to the limit beyond which thread breaks increasingly occur.
摘要:
A bobbin transport apparatus and method is provided which is adapted for use with a textile yarn processing machine having a plurality of yarn winding stations along at least one side thereof. The transport apparatus includes a movable carriage having a mandrel for receiving the full bobbins from the winding station of the processing machine, and quality control means for measuring a number of physical characteristics of each full bobbin received thereon. The quality control measurements may be performed concurrently with the transport of the bobbins to a remote creel, and the measurements are fed to a computer where an immediate determination is made as to whether the measured quality characteristics fall within accepted tolerance limits. The computer may also be employed to calculate additional quality control related characteristics, such as yarn denier and bobbin wind tightness, from the directly measured characteristics. The apparatus may further include a printer mounted on the carriage for printing the measured or calculated quality characteristics on a label or directly onto each bobbin.
摘要:
A bobbin changing apparatus is provided which is adapted for use in association with a textile yarn processing machine having a plurality of winding stations, and wherein the apparatus comprises a thread operating carriage and a separate doffing carriage, which are mounted for independent movement on a common trackway. The thread operating carriage acts to sever and withdraw the advancing yarn during the bobbin changing operation, and upon an empty bobbin being mounted at the winding station, to then deliver the yarn to the automatic thread-up mechanism on the winding head of the machine. The doffing carriage includes a mandrel for receiving the full bobbins, and since the doffing carriage is independent of the thread operating carriage, the doffing carriage is free to immediately move from the winding station to deliver the full bobbin to a separate creel, or to perform a quality control analysis of the full bobbin. The thread operating carriage preferably carries a supply of empty bobbins, and includes a mechanism for donning the empty bobbins after the doffing operations have been completed by the doffing carriage.
摘要:
The disclosure herein describes an improved apparatus and method for weighing the yarn wound on the rotatable shaft of a yarn winding machine; the apparatus consists of a balance beam which has at one end thereof a first deck for receiving thereon at least one yarn bobbin from which skeins or balls of yarn are to be made and which has at the opposite end thereof a second deck for receiving thereon a plurality of individual weights, each individual weight corresponding to the predetermined weight assigned to a skein or ball of yarn, or to a fraction thereof. Positioned to be responsive to the balance beam movement, an electrical switch, when closed, causes the rotation of the machine shaft on which yarn is bundled in the form of a skein or a ball; when the weight of the yarn transferred from the bobbin onto the shaft equals that of the one or more weights removed from the second deck prior to a winding operation, the balance beam returns to equilibrium thereby opening the switch and stopping the winding operation.
摘要:
Systems and methods for determining that a consumable welding package has been, or may have been, replenished in a high production welding environment and that a tracked weight value of the consumable welding package should be reset. An operator of a welding system can be notified that a consumable welding package may have been replenished and, therefore, that the weight value of the consumable welding package may need to be reset in the welding system. Alternatively, the weight value of the consumable welding package in the welding system may be automatically reset when the welding system has determined that the consumable welding package has been replenished.