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149results about "Piercing arrangements" patented technology

Full-automatic cotton sliver jointing device and method

The invention relates to a full-automatic sliver jointing device and method. The joint device comprises a servo walking mechanism, a robot body, a visual system, a flexible grabbing mechanism and a high-precision joint mechanism. The servo walking mechanism is installed on the machine frame, the robot body is fixedly installed on the servo walking mechanism and moves along with the servo walking mechanism, and the visual system, the flexible grabbing mechanism and the high-precision joint mechanism are installed on the robot body. According to the full-automatic cotton sliver jointing device, unmanned operation of the whole process from broken end detection, positioning, grabbing to jointing is achieved, and the labor cost and the labor intensity are greatly reduced.
Owner:JINGWEI TEXTILE MASCH CO LTD

Device for finding out broken yarn joint of ring bobbin

The utility model relates to a device for finding out a broken yarn joint of a ring bobbin, and the device comprises an air blowing device which is used for providing a positive pressure air source; the mounting plate is positioned on one side of the blowing device; the fixing device comprises a fixing pipe, a first driving assembly and a second driving assembly, the fixing pipe is used for fixing the ring bobbin, the first driving assembly is used for driving the fixing pipe to drive the ring bobbin to rotate, and the second driving assembly is used for driving the fixing pipe to drive the ring bobbin to linearly move, so that the ring bobbin is in a moving state of moving up and down while rotating; the static electricity removing device is used for removing static electricity of yarns on the ring bobbin; the air suction traction device is used for generating negative pressure, the air suction traction device and the air blowing device are arranged on the two sides of the fixing device correspondingly, and the air suction traction device and the air blowing device form directional airflow so that the broken yarn on the ring bobbin in the moving state can be separated from the ring bobbin. The structure is high in automation degree, broken yarn does not need to be manually found, the production efficiency is improved, the labor cost is reduced, and the yarn quality is guaranteed.
Owner:SKLIN INTELLIGENT EQUIPMENT TECHNOLOGY (KUNSHAN) CO LTD

Yarn untwisting device

The utility model provides a yarn untwisting device which comprises an untwisting pipe, a fixed seat and a base which are sequentially connected, an air inlet hole and an air outlet hole are arranged on the base, and the yarn untwisting device is characterized in that the fixed seat is arranged in a fixed seat shell, the fixed seat shell and the fixed seat shell are tightly connected to form a semicircular or annular air channel, and the semicircular or annular air channel is provided with an air channel through hole I and an air channel through hole II. An inclined through hole is formed in the side wall of one end of the untwisting pipe, the untwisting pipe is connected with the fixing base in a rotating and adjustable mode, and the inclined through hole is communicated with the air path through hole I or the air path through hole II and used for untwisting Z-twist or S-twist yarn. The fixing seat is connected with the base, and the air outlet hole in the base is communicated with the semicircular or annular air channel. Bending points in an air channel of untwisting air flow can be reduced, the air flow in the air channel can run smoothly, the stability of yarn processing and the untwisting effect are guaranteed, the variety adaptability is high, Z-twist yarn and S-twist yarn can share the same device, assembly is easy, and operation and use are convenient.
Owner:QINGDAO HONGDA TEXTILE MACHINERY

Splicing method and splicing apparatus

A splicing method of a splicing device on a ring spinning machine with a plurality of spinning stations, from which rovings are brought out from delivery rolls and are converted into yarn and are wound on a tube, in the event of a yarn break, the splicing device produces a splice in which a yarn end is connected to a roving coming out from a delivery roll and the spinning process is continued. Alternatively according to procedure a), a yarn end of the broken yarn is searched for, the found yarn end is detected and is used for splicing to obtain a tube without yarn interruption, or according to procedure b), an auxiliary yarn from a yarn supply is fastened to the tube, then the auxiliary yarn is separated to obtain a yarn end fastened to the tube, and the yarn end is used for splicing to obtain a tube with yarn interruption. Depending on the degree of utilization of the capacity of the splicing device and / or the possible prospect of success of procedure a), it is selected whether a yarn end is provided according to procedure a) or b), assuming that procedure a) takes more time than procedure b.
Owner:MASCHINENFABRIK RIETER AG

Spinning machine

The invention provides a spinning machine. The spinning machine includes a spinning device, a yarn storage device, a winding device, a yarn joining device, a suction tube, a second catching device (24), and a moving portion (67). When the yarn (15) is broken, the suction tube captures the yarn (15) on the side of the spinning device and guides the yarn (15) on the side of the spinning device towards the yarn joining device. The second catching device (24) is disposed so as to face the yarn path, and catches the yarn (15) on the opposite package side when the yarn (15) is broken. The acting portion is disposed between the second catching device (24) and the yarn joining device on the yarn path, and separates the yarn (15) on the spinning device side and the yarn (15) on the package side when the yarn (15) is broken. The yarn joining device starts yarn joining while the action unit separates the yarn (15) on the spinning device side and the yarn (15) on the package side.
Owner:MURATA MASCH LTD

Yarn having pattern and splicing method of producing

PendingEP4709670A1CrochetingFilament handling
A method for producing a yarn having a pattern characterized by a plurality segments that are assembled into a sequence of rows, i.e. clusters. The yarn is preferably knotless. The method splices segments having a different length so that the pattern can be easily arranged with visibly distinct colours.
Owner:SPINRITE INC

Spinning machine and method

The invention relates to a textile machine that can have at least one first vacuum point for producing a thread. The textile machine can have at least one second vacuum point for drawing in the thread. The textile machine can have at least one first vacuum system. This can be designed and arranged to be fluidically connected to the first vacuum point. Alternatively, the first vacuum system can be designed and arranged to be in fluidic connection with the first vacuum point. The textile machine can have at least one second vacuum system. This can be designed and arranged to be fluidically connected to the second vacuum point. Alternatively, the second vacuum system can be designed and arranged to be in fluidic connection with the second vacuum point.In order to make the design of a textile machine more flexible, to further improve the vacuum allocation and to make the vacuum allocation more flexible, it is provided that a connection between the first vacuum system and the second vacuum system is designed in such a way that the connection can be selectively established or interrupted.
Owner:SAURER SPINNING SOLUTIONS GMBH & CO KG

An attending device for a ring spinning machine for producing yarn, a ring spinning machine with an attending device, and a method of using the attending device to detect the working state at a workstation of the ring spinning machine

The present invention relates to an attending device for a ring spinning machine for producing yarn which comprises a supporting structure in which are arranged means (11) for mounting the attending device (1) on the machine displaceable along at least one row of workstations (2) and for moving it along the row of workstations (2) of the machine, service means (SM) for performing service operations at the workstations (2) of the machine and a power supply system and a control system (CS). At least one non-contact sensor (12) of the profile of the surface of the rotating element is mounted in the supporting structure, wherein the non-contact sensor (12) has a sensing area (SA) which is directed outside the ground plan of the attending device (1) and the non-contact sensor (12) is adapted to transmit the data about the sensed profile or is coupled to means for transmitting the data about the sensed profile or can be coupled to means for transmitting the data about the sensed profile.
Owner:RIETER CZ AS

Improved joining head suitable for a device for joining a textile and a yarn by means of a pressurized fluid, and device for joining a textile and a yarn by means of a

A joining head (10) adapted for use in a device (100) for joining textile threads and yarns by means of a pressurized fluid, the joining head comprising: a body (11) in which a longitudinally extending splice chamber (12) is formed, the splice chamber (12) being open at opposite ends (12a, 12b) and provided with a longitudinal slot (13) at the top; at least one nozzle (15a, 15b) for introducing a pressurized fluid into the splicing chamber (12); at least one fluid outlet opening (18) formed in the body (11) and extending transversely to a longitudinal median plane (PL) of the joining chamber (12); at least one fluid outlet opening (18) which extends transversely to the longitudinal median plane (PL) of the splicing chamber (12), the outlet opening (18) being asymmetrical with respect to the longitudinal median plane (PL) and freely leading to the outside of the splicing chamber (12) at a single wall thereof, and at least one fluid outlet opening (18) which extends transversely to the longitudinal median plane (PL) of the splicing chamber (12). The pressurized fluid extraction opening (18) comprises a through opening formed in only one of the two walls (19, 20) laterally delimiting the splicing chamber (12), and the through opening has opposite ends respectively free to open into the interior and the exterior of the splicing chamber (12).
Owner:MEDSAN SPA

Ring spinning spun yarn splicing device and method

The invention discloses a ring spinning spun yarn jointing device and method, the ring spinning spun yarn jointing device comprises a transverse moving assembly and a clamping transmission part, the outer side of the transverse moving assembly is provided with a yarn hooking transmission mechanism assembled by bolts, and the inner side of one end of the yarn hooking transmission mechanism is provided with an extraction transmission part connected with the output end. According to the device, a transverse moving assembly is mainly used for being matched with output operation of an upper lifting adjusting component; after hydraulic oil cylinders distributed in a single group are output and run, a lifting rod, an electric rotating seat, a rear arm, a middle free arm, a swinging rod and a hinging base are subjected to hinge degree-of-freedom transmission, and then a front block, an elastic rod at one end of a rotating base and a yarn hook are used for hooking yarns; and after hooking, the upper clamping transmission component and the sand output assembly are matched to achieve the effect of extracting, carrying and conveying, so that the effect of automatic conveying in the whole process is achieved, the burden of workers can be effectively reduced, and the joint connecting efficiency of equipment is improved.
Owner:YANCHENG DONGMING TEXTILE CO LTD

Annular track positioning device for automatic wiring unit

The invention relates to an automatic wiring unit (2) for a ring spinning machine (1) having an annular track (3), comprising a housing (6), a tower device (4), a control unit (2b) for a wiring assistance module, in which an encoder (8) is arranged in the housing (6) that can be moved on the tower device (4), and a measuring device (9) is mounted on the tower device (4), the method is used for determining the position of an annular track (3) of the ring spinning machine (1).
Owner:LAKSHMI MACHINE WORKS LTD

Yarn splicer device with improved tail tearing means and the related operating method

A yarn splicer device (4) comprising a pair of opposite plates (8,12) which are rotatable with respect to a common drive axis (X-X), the plates (8,12) being spaced apart from each other, along said drive axis (X-X), so as to identify a passage path (14) of a first yarn (16) ending with a first thread (20) and a second yarn (24) ending with a second thread (28), to be mutually spliced, tail tearing means (32), configured to grasp and tear tails (36) of said first and second thread (20,28), so as to obtain tearing points (40) positioned at least partially inside said passage path (14) of the first and second yarn (16,24), wherein said tail tearing means (32) comprise a first pair of counter-rotating rotatable cylinders (44), configured to clamp the tail (36) of said first thread (20) and / or a second pair of counter-rotating rotatable cylinders (48), configured to clamp the tail (36) of said second thread (28).
Owner:SAVIO MACCHINE TESSILI SPA

Two-for-one twister broken line detection device and automatic wiring mechanism

The invention relates to the technical field of two-for-one twister production, in particular to a two-for-one twister broken yarn detection device and an automatic yarn connection mechanism, the two-for-one twister broken yarn detection device comprises a two-for-one twister rack and a yarn guide mechanism, and the two-for-one twister rack is provided with a pay-off cylinder and a twisting cylinder. Through the arrangement of the yarn guide mechanism, the guide wheel and the tensioning piece can keep tensioning acting force on the yarn when the two-for-one twister is in a normal state, and through the cooperation of the arrangement of the extrusion piece, once the yarn is broken, the yarn breaking condition can be rapidly detected through the tensioning change of the elastic abutting piece; a horizontal shuttle guiding mechanism and a yarn guiding mechanism are combined, a broken yarn clamping assembly is rapidly started, broken yarn is rapidly clamped, and through cooperation of an air injection assembly, surface dust removal of the yarn in the normal state can be achieved, broken yarn sections can be continuously blown, the situation that the yarn ends are curled in a conical barrel is avoided, and the yarn quality is improved. The wire end can be conveniently exposed, and the automatic wiring efficiency is improved.
Owner:SUZHOU KEMARK TEXTILE TECH CO LTD

Yarn hook yarn picking device of ring spinning machine

The invention provides a yarn hook yarn picking device of a ring spinning machine. The yarn hook yarn picking device is used for solving the problems that in the prior art, the structure is complex, a broken yarn end is difficult to find quickly, and an end-broken yarn is difficult to penetrate through a steel wire ring successfully. Comprising a base, a broken yarn end finding assembly, an ingot pulling and yarn combing assembly and a yarn picking module, and the broken yarn end finding assembly comprises an end finding module, a rotating module and a moving module; the yarn picking module comprises a yarn hook parallel to the central axis of the yarn suction pipe and a yarn picking power module for driving the yarn hook to rotate, the rear end of the yarn hook penetrates through and is rotationally arranged on the clamping block, the front end of the yarn hook is provided with a first bent shape, and the front end of the yarn suction pipe is provided with a second bent shape which forms a U-shaped structure with the first bent shape of the front end of the yarn hook; a yarn picking and threading part is formed between the first bent shape of the yarn hook and the second bent shape of the yarn suction pipe, and the yarn picking and threading part is matched with the rotating module and the moving module to be quickly and conveniently connected to a roller in a penetrating mode. The device is compact in structure, can adapt to rapid yarn combing and end finding of bobbins of different specifications, and can also improve the threading success rate.
Owner:JIANGSU WEI RUIXIN ROAD TECHNOLOGY CO LTD

Textile machinery systems, control methods, and programs

To reduce the burden on users in setting up textile machinery. [Solution] The textile machinery system 100 comprises a first textile machine 1, a second textile machine 2, and a control device 3. The first textile machine 1 and the second textile machine 2 have winding devices that wind yarn to form packages. The control device 3 is capable of communicating with the first textile machine 1 and the second textile machine 2. The control device 3 includes a first input providing unit F11, a first calculation unit F12, a first output unit F13, a second input providing unit F21, a second calculation unit F22, and a second output unit F23. The input receiving unit receives input of yarn-related information. The calculation unit calculates setting information for yarn splicing and / or yarn generation in the first textile machine 1 and the second textile machine 2, corresponding to the input yarn-related information, based on the input yarn-related information. The output unit outputs the setting information.
Owner:MURATA MASCH LTD

Conveying mechanism for loom and conveying process

The invention belongs to the technical field of spinning, and particularly relates to a conveying mechanism for a loom and a conveying process. The conveying mechanism for the loom comprises a compensation device, and a wire rod penetrates through the compensation device and then is wound on a wind-up roller; the compensation device comprises: a fixed box, which is internally provided with an axially through wire channel; the two compensation assemblies are arranged on the upper surface and the lower surface of the fixing box in a lifting mode respectively and abut against the wire rod; the twisting assembly is arranged in the fixed box in a lifting manner and is linked with the compensation assembly; when a wire rod penetrates through the fixing box, the two compensation assemblies are pressed on the upper surface and the lower surface of the wire rod respectively. After the wire is cut off, the broken end of the wire is pulled back by the compensation assembly and contracted into the fixing box, so that the broken end of the wire is attached to the side wall of the twisting assembly; one compensation assembly moves upwards to drive the twisting assembly to rotate in the winding direction of the wire rod, so that the broken end of the wire rod is twisted, and the broken end of the wire rod is prevented from loosening through the twisting assembly.
Owner:SUZHOU HENGYAODA TEXTILE CO LTD

Traveller and winding-in device for ring spinning

ActiveCN119041066BPiercing arrangements
A steel ring threading and splicing device for ring spinning head, belong to ring spinning yarn automatic joint technical field, the present application in order to solve the existing technology in the steel ring threading process steel ring positioning unreliable and other problems. Including steel ring positioning device, steel ring positioning device includes crank, connecting rod, sliding block, air pipe and vacuum suction tube, guide is set on the shell before and after, sliding block and the guide sliding fit, drive rudder and the shell are connected, the one end of crank is connected with the output shaft of drive rudder, the other end of crank is sequentially articulated with sliding block through connecting rod, vacuum suction tube and air pipe are fixed on the left side of sliding block, the front part of air pipe is bent to right upper side, the front part of vacuum suction tube is bent downward, the front end suction hole of vacuum suction tube is located in the right upper side of the front end air hole of air pipe, steel ring positioning device is positioned to steel ring by the combination of suction and blowing, can make steel ring stop in the specified threading area.
Owner:HARBIN INST OF TECH

Pneumatic yarn threader

The utility model relates to the technical field of pultrusion material production of glass fiber and carbon fiber etc. especially relates to a pneumatic yarn joining device, including pneumatic drive arrangement, still include: axial closed -loop chamber device, including main frame, limit block, the sliding block is arranged between main frame and limit block and slides, the air hole is set up along its axial in main frame, main frame sets up U type groove, the slide hole is set up in limit block, the connecting rod is arranged in the slide hole and slides, the spring is set up in connecting rod sleeve, the slide hole is located and sets up the limit ring, manual back -and -forth device is used for pulling the sliding block to move, the utility model has the following beneficial effect: high degree of automation: can automatically complete the joint of yarn, improves production efficiency, the reliability is strong: adopts pneumatic drive, and the action is stable and reliable, is applicable to the particularity of glass fiber and carbon fiber, simple operation: single hand can pull the trigger of the pull rod and buckle pressure air gun, therefore convenient for the operation of manual control device, simple and easy to use.
Owner:LIANYUNGANG JUNTING TRADING CO LTD

spinning machine

The present invention relates to a spinning machine which flexibly performs the capturing of the yarn on the side of the package. The spinning machine is provided with a suction device (29) and a suction nozzle (109). Depending on the main cause of the interruption of the spinning by the spinning device (23), the state at the start of the spinning by the spinning device (23), or the yarn type of the spun yarn (33), the use of which of the suction device (29) and the suction nozzle (109) is changed.
Owner:MURATA MASCH LTD

Connecting fitting, and dispensing system and connecting device comprising connecting fitting

A connection fitting (1), and a dispensing system and a connection device comprising said connection fitting are provided. The connection fitting is adapted to connect a source of compressed air (S) to an air distributor assembly (200) of a device (100) for pneumatically connecting yarns or threads, and comprises a single inlet tube (2) provided at one end with a single inlet interface (20) configured to connect to the source of compressed air, branching at opposite ends into a pair of distribution tubes (3, 4) independent of each other, each distribution tube terminates in a respective outlet opening (30, 40), the outlet openings of the pair of distribution tubes being formed in a common attachment flange (5) configured to be coupled to an air distributor assembly (200) and at least partially overlapping a respective inlet opening (201, 202) of the air distributor assembly. The installation and management cost of the pneumatic connecting device is reduced, the use flexibility is improved, the structure and the construction are simple, and the cost effectiveness is high.
Owner:MEDSAN SPA

Handling apparatus for a maintenance device for cleaning thread-guide elements, and a cleaning method

PCT designated stageWO2025233119A1Piercing arrangementsMachineCleaning methods
The invention relates to a handling apparatus (1) for a maintenance device (5) of a ring spinning machine for cleaning a thread-guide element (2), wherein the thread-guide element (2) to be cleaned comprises at least one flat main body having at least one guide slot for horizontal thread guidance, wherein the handling apparatus (1) is controllably connected to the maintenance device (5) and can be moved in multiple axes, and wherein the handling apparatus (1) comprises at least one cleaning element (3). The invention also provides a maintenance device (5) having a handling apparatus (1) according to the invention, to a method for cleaning a thread-guide element (2), and to a cleaning element (3).
Owner:RIETER CZ AS

Yarn winding machine

To provide a yarn winding machine capable of optimizing tensile force generated on a yarn when the yarn is guided to a yarn piecing section in a yarn piecing operation by a yarn piecing device.SOLUTION: A yarn winding machine 1 comprises: a plurality of winding units 2 that respectively have a suctioning / catching device 50 to suction and catch a yarn Y on a package P side when the yarn is divided between an air spinning device 7 and a winding device 13; and a yarn piecing device 35 having a yarn drawing member 39A to execute yarn drawing operation. Each of the suctioning / catching devices 50 has a suction piping 61A in which suction air flows from a tip 61Ab toward a base end 61Aa, a suction port 51 formed on the tip 61Ab of the suction piping 61A, and a holding part 70 to hold the yarn Y suctioned from the suction port 51 in the suction piping 61A. When the yarn Y is divided, the holding part 70 holds the yarn Y on the package P side suctioned in the suction piping 61A. The holding part releases the yarn Y simultaneously with or before starting of the yarn drawing operation by the yarn piecing device 35.SELECTED DRAWING: Figure 5
Owner:MURATA MASCH LTD

Yarn breaking, combing and end finding device and end finding method for ring spinning machine

The invention provides a broken yarn combing and end finding device and method for a ring spinning machine. The problems that in the prior art, steps are tedious, and broken yarn ends are difficult to find rapidly are solved. Comprising a base and a spindle pulling and yarn combing assembly, and the spindle pulling and yarn combing assembly comprises a tube pulling installation frame vertically and fixedly connected to the upper portion of the base, a tube grabbing module, a yarn combing module and a position adjusting and controlling module arranged on the tube pulling installation frame and used for adjusting the position of the tube grabbing module. The bobbin grabbing module is used for taking down a broken bobbin from a spindle and rotating the broken bobbin in the direction opposite to the normal winding direction of yarn. The yarn combing module is used for moving in the tangential direction of the broken bobbin during reverse rotation of the broken bobbin to provide tangential force for broken yarn on the broken bobbin so as to loosen or unwind the broken yarn wound on the broken bobbin. The device is compact in structure, easy to operate and capable of adapting to rapid yarn combing and end finding of bobbins of different specifications.
Owner:JIANGSU WEI RUIXIN ROAD TECHNOLOGY CO LTD

Yarn lifting structure of rotor spinning machine

The invention discloses a yarn lifting structure of a rotor spinning machine, which comprises a lifting cylinder, a lifting rod and two support connectors, a yarn lifting rod rotating arm is rotatably arranged on each support connector, the yarn lifting rod rotating arm comprises an insertion hole positioned at the top end, a rotating shaft is mounted on the side surface of the yarn lifting rod rotating arm, the lifting cylinder is hinged to one support connector, and the lifting cylinder is hinged to the other support connector. The end of a piston rod of the lifting air cylinder is hinged to the rotating shaft, and the two ends of the lifting rod are inserted into inserting holes of the two yarn lifting rod rotating arms to be fixed. The single yarn can be lifted during yarn connection.
Owner:ZHEJIANG TAITAN CO LTD

Splicing device

The utility model discloses a splicing device, which relates to the technical field of textile and comprises a splicer, a first V-shaped groove block, a second V-shaped groove block, a first clamp holder and a second clamp holder. The splicer is provided with a first splicing channel and a second splicing channel; the longitudinal sections of the first splicing channel and the second splicing channel are partially overlapped; one end of the first splicing channel is communicated with one end of the second splicing channel; the first splicing channel is internally provided with a first rotating direction airflow, the second splicing channel is internally provided with a second rotating direction airflow, and the rotating direction of the first rotating direction airflow is opposite to that of the second rotating direction airflow; a first V-shaped groove block and a first clamping device are sequentially and fixedly arranged at the end, away from the second splicing channel, of the first splicing channel. A second V-shaped groove block and a second clamping device are sequentially and fixedly arranged at the end, away from the first splicing channel, of the second splicing channel. And the splicing effect on the high-elastic yarns is improved.
Owner:XUZHOU TIMES TEXTILE CO LTD

Yarn suction device for automatic splicing unit

The invention relates to an automatic splicing unit (1) for a ring spinning machine (2), comprising a suction hood (4) provided with a substantially circumferential opening for encircling a bobbin (3) of the ring spinning machine (2), and which can be moved in the horizontal and vertical directions by means of a drive device arranged in the automatic splicing unit (1), the ring spinning machine (2) comprises a movable suction hood (4) provided with a substantially straight central portion (4c) and at least two substantially curved portions (4a, 4b), and during the joining operation, the suction hood (4) is moved downward close to the bobbin (3) in order to pick up the end of the broken yarn from the bobbin (3) by raising / tilting a guide wire (6) of the ring spinning machine (2).
Owner:LMW LTD

Yarn having pattern and splicing method of producing

PCT designated stageWO2025233669A1CrochetingFilament handlingYarnStructural engineering
A method for producing a yarn having a pattern characterized by a plurality segments that are assembled into a sequence of rows, i.e. clusters. The yarn is preferably knotless. The method splices segments having a different length so that the pattern can be easily arranged with visibly distinct colours.
Owner:SPINRITE INC

A yarn piecing system and method for piecing auxiliary yarn at a spinning station of a ring spinning machine

ActiveEP4063543B1Piercing arrangements
A yarn piecing system and method for piecing auxiliary yarn at a spinning station of a ring spinning machine, comprising yarn supplying means for supplying a free end of auxiliary yarn (12), yarn fastening means (11) for fastening auxiliary yarn (12) on outside the yarn feeding nozzle (10) to form a threading section ("S") of auxiliary yarn (12) and, automatic handling means (7) for handling the yarn supplying means and the yarn fastening means (11). The system is characterized in that said automatic handling means include a yarn handling tool (8) with a yarn feeding nozzle (10), and in that the system comprises air suction means (13) arranged to suction air into the yarn feeding nozzle (10), and processing and control means configured to supply an activation signal to said air suction means in order to suction air into the yarn feeding nozzle (10).
Owner:PINTER CAIPO

Method for operating a ring spinning machine, maintenance device for a ring spinning machine and ring spinning machine

In a maintenance device (14) for a ring spinning machine (1), which is designed to remove a spinning sleeve (4) at least temporarily from a working position (2) of the ring spinning machine (1) during a maintenance operation, wherein the maintenance device (14) has a gripper (15) for grasping the spinning sleeve (4), it is provided according to the invention that the gripper (15) has at least a first gripping section (16) and a second gripping section (17) for grasping the spinning sleeve (4), wherein the gripper (15) is designed to assume at least a first gripping position (18) and a second gripping position (19). A first inner diameter (22) defined by the first gripping section (16) in the first gripping position (18) corresponds essentially to a second inner diameter (24) defined by the second gripping section (17) in the second gripping position (19).
Owner:RIETER CZ AS

A textile ring spinning machine comprising an automatic piecing unit and a method of detaching and lifting a broken yarn end from a cop

An automatic piecing unit for a textile ring spinning machine comprises a bottom circumferential jet arrangement having three nozzles. The bottom circumferential jet arrangement is disposed concentrically around a spindle of the textile ring spinning machine proximate a cop. Each nozzle project air towards cop at an upwards angle. The automatic piecing unit also comprises an additional jet arrangement disposed above the bottom circumferential jet arrangement and having blow nozzles. Two blow nozzles blow air at an acute angle towards an upward direction of the cop and another blow nozzle points towards traveler region of the ring. Each of the bottom circumferential jet arrangement and the additional jet arrangement discharge air to detach a broken yarn end from the cop and lift the broken yarn end upstream towards a drafting zone of the ring spinning machine to enable effective automatic yarn piecing with a drafted fibre material.
Owner:LAKSHMI MACHINE WORKS LTD