摘要:
A method and apparatus for disposing an end of roving of a roving bobbin at a disposing location adjacent the drafting device of a spinning station of a textile spinning machine The roving end disposing apparatus, which is preferably mounted on a traveling service unit which travels to the spinning stations of the textile spinning machine to perform roving feed start operations thereat in which the feed of roving from a roving bobbin through a drafting device is started, includes a roving end support assembly for supporting a roving end for movement between a receipt location at which the assembly receives the roving end and the disposing location adjacent the drafting device at which the supported roving end is released either for engagement by the drafting device or piecing of the roving end with roving extending from another roving bobbin through the drafting device. The roving end disposing apparatus also includes a component for directing air against the roving end in correspondence with its release from the support assembly to facilitate movement of the roving end at an inclined direction into position for engagement by the drafting device or piecing with another roving. The air directing component preferably includes an air jet and an air source reversibly operable to apply suction through the air jet to secure the roving end during movement between the receipt location and the disposing location and to supply pressurized air against the roving end.
摘要:
A method and apparatus for carrying out a roving bobbin exchange operation when applied to a conventional ring spinning frame. The roving bobbin exchange operation is simultaneously carried out on a plurality of successive pairs of a front bobbin hanger and a back bobbin hanger of the creel portion of the spinning frame by intermittently displacing the operation unit along the spinning frame and by utilizing a plurality of pairs of a first sub-peg unit having a front peg and a back peg, and a second sub-peg unit having a front peg and a back peg unit, whereby a roving bobbin mounted on the front peg of the first sub-peg unit can be transferred to the back peg of the second sub-peg unit, and vice versa, during the exchange operation, and thus the unit roving bobbin exchange operation can be carried out in a very limited space defined by twice a pitch between two adjacent pairs of a front bobbin hanger and a back bobbin hanger facing the first bobbin hanger.
摘要:
An apparatus for controlling a drive of each one of spinning frames forming a group, to which a conventional roving bobbin exchange operation for exchanging almost exhausted roving bobbins of the spinning frame with full packaged roving bobbins of a bobbin carrier on a supply rail arranged at a position close to and above the corresponding spinning frame by a known automatic apparatus mounted on a carrier which is capable of displacing along a track arranged on a floor of a spinning factory along an alignment of out-end frames of said spinning frames, is applied, wherein during the spinning operation, a residual roving quantity of the roving bobbins of each spinning frame is measured, while detecting a quantity of yarn wound on cops in each spinning frame, and when the above-mentioned measurement of a residual quantity of roving bobbins reaches a predetermined value, a first signal indicating this condition is issued, while the quantity of yarn wound on the cops is measured to detect a suitable condition to start the above-mentioned roving bobbin exchange operation, and when this suitable condition is detected, a second signal indicating this condition is outputted, then a signal calling the automatic apparatus is outputted based upon the logical product of these two signals, and an allowable time for the arrival of the automatic apparatus at a working position close to a particular position and close to the out-end frame of a spinning frame is set, and if the automatic apparatus for exchanging roving bobbins does not arrive at the above-mentioned working position within the allowable time, the drive of the spinning frame concerned is stopped by a means for controlling the drive of the spinning frames which cooperates with the measurement of a residual quantity of a roving bobbin and measurement of a quantity of yarn wound on the cops.
摘要:
Apparatus and methods for automatically replacing emptying yarn spools at a spinning machine, especially ring spinning machines, which machines include a spool frame and a plurality of spinning stations, wherein full spools are brought to and empty spools are moved away from the spinning stations. Full spools are arranged along the spool frame of the spinning machine in at least one magazine row, either individually, or a plurality thereof in sections, and the magazine row in the region of the first emptying spool, or section of spools, includes an empty location. This empty or bypass location is intermittently along the magazine row.
摘要:
A bobbin exchange system applied to a ring spinning frame provided with a unique creel mechanism, wherein a pair of parallel rails is provided for supporting respective bobbin carriages. Each bobbin carriage is provided with two alignments of bobbin hangers, to a number which is identical to a number of spindles of each side of the ring spinning frame. When roving bobbins supported by the bobbin carriage supported by one of the above-mentioned supporting rails reach an almost exhausted condition, a roving bobbin exchange operation between full packaged roving bobbins suspended by the corresponding bobbin hangers of the other bobbin carriage supported by another supporting rail is carried out, and upon completion of the above-mentioned roving bobbin exchange operation, the first-mentioned bobbin carriage is discharged from the first-mentioned supporting rail and then a fresh bobbin carriage supporting full packaged roving bobbins is introduced into the first-mentioned supporting rail by means of a conventional bobbin carriage transporting system. The above-mentioned roving bobbin exchange operation is repeated between the above-mentioned two supporting rails without stopping the spinning operation.
摘要:
The method and apparatus for supplying a reserve feed stock to a spinning machine or spinning position thereof, contemplates monitoring the operational state of a production feed stock and upon reaching a predeterminate operational state thereof, such as near depletion or depletion of the production feed stock, or even rupture thereof, bringing a reserve feed stock previously held in readiness into a production position where such reserve feed stock now assumes the role of a production feed stock. In this way, downtime of the spinning machine or spinning position can be minimized and its operation at least partially automated insofar as there is always available a reserve feed stock to allow for essentially continuous or continual production of a spun yarn or thread.
摘要:
An apparatus for aligning a textile strand supple device and a strand guide of a drafting device of a textile machine is provided for initially inserting a textile strand into the strand guide. The strand guide of the drafting device is typically reciprocally moved transversely to the direction of feed of the textile strand and the aligning apparatus of the present invention includes a device for securing the strand guide at a predetermined position along its reciprocating path at which a conventional movable service unit can be positioned for initially inserting a textile strand into the strand guide. According to another aspect of the present invention, the aligning apparatus includes a motor assembly for adjustably moving the textile strand supply device in response to the sensed position of the strand guide of the drafting device. According to another aspect of the present invention, the aligning apparatus includes a device for resiliently adjusting the strand guide of the drafting device in response to the position of the textile strand supply device.
摘要:
A process for replacing spent roving packages with new roving packages, with automatic splicing and reattachment of the rovings, on machines to spin carded wool is disclosed. The new roving package is removed from a conveyor and brought to a waiting position, where the end of the new roving is manually placed in a gripper. When the old roving package is almost exhausted, the spindle of the spinning machine is stopped and the roving is sheared. The end of the roving still attached to the spinning machine is retained with an aspirator. The new roving package is then brought to the working position, causing the automatic discharge of the spent roving package, and the gripper brings the new roving to the aspiration site causing the intermingling of the fibers of the two rovings. The spindles are restarted and the spliced segments of the roving receives a false twist and subsequent real twists. The process may be carried out with a device which can remove the new package from the conveyor and bring it to the waiting position and the working position, which also has a gripper to bring the new roving the aspirator site.
摘要:
A spinning system has a spinning apparatus having a longitudinal succession of spinning stations, a creel extending longitudinally above the apparatus and having respective pendant hangers above the stations and each capable of holding a respective yarn package, and a respective slide above each station supporting the respective hanger slidable between an inner position directly above the respective station and an outer position above but horizontally offset therefrom. A reloading apparatus is displaceable longitudinally along the apparatus at least generally under the hangers in the outer positions of the respective slides. A magazine holds a supply of fresh roving packages on the reloading apparatus and a device is provided on the reloading apparatus for displacing the slide between the inner and outer positions. A grab on the reloading apparatus can grab the package on the hanger in the outer position of the respective slide. The displacing device includes a roller rotatable about a longitudinal axis, a drive for rotating the roller about the axis and an actuator for engaging the roller with the slide while rotating the roller about the axis to displace the slide between the positions.
摘要:
Apparatus for automatic creeling in ring spinning frames, constituted by a frame capable of patrolling along a ring spinning frame, in inspection service to detect missing rovings, and is provided with an upwardly movable operative body and a supply of full roving packages to cover the needs and comprises also in combination:(a) structure for detecting missing roving;(b) creeling structure for releasing the exhausted bobbin or roving with broken strand;(c) structure for retaining the end of a new roving;(d) structure for gripping the new roving end and passing it around the spinning frame roving rods and delivering it to the drafting system; and(e) structure for replacing the roving sliver loading device.