CN110093696B - Device and method for transferring yarn ends and ring spinning machine - Google Patents
Device and method for transferring yarn ends and ring spinning machine Download PDFInfo
- Publication number
- CN110093696B CN110093696B CN201910092255.8A CN201910092255A CN110093696B CN 110093696 B CN110093696 B CN 110093696B CN 201910092255 A CN201910092255 A CN 201910092255A CN 110093696 B CN110093696 B CN 110093696B
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- suction tube
- yarn
- spinning
- suction
- yarn ends
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- 238000007378 ring spinning Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009987 spinning Methods 0.000 claims abstract description 88
- 238000012423 maintenance Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 abstract description 15
- 239000011324 bead Substances 0.000 description 9
- 238000011084 recovery Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
- D01H15/013—Carriages travelling along the machines
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
The invention relates to a yarn end conveying deviceApparatus and method for a ring spinning machine. A yarn end (40) transfer device at a spinning station of a ring spinning machine is used for detecting yarn ends (40) on a bobbin and comprises a suction tube (9) with a suction mouth (90) that can be assigned to the spinning station, whereby the suction tube (9) is connected to a vacuum source, whereby the suction tube (9) is mounted on a positioning system for guiding the mouth (90) of the suction tube (9) to a drafting device of the spinning station for restoring the spinning process. The positioning system comprises: a support member (5) which is reversibly linearly slidably mounted on the vertical guide (6); a horizontal arm (7) which is mounted on the support member (5) in a reversible and swingable manner about a vertical axis (R), whereby the suction tube (9) is mounted in a horizontal direction (C + ‑C ‑ ) The upper part is mounted on the horizontal arm (7) in a reversible linear sliding manner. The invention further relates to a method for transferring a yarn end (40) and to a ring spinning machine.
Description
Technical Field
The present invention relates to a yarn end transfer device (or "handling device") at a spinning station of a ring spinning machine for detecting yarn ends on bobbins, comprising a suction tube with a suction mouth that can be assigned to the spinning station, the suction tube being connected to a vacuum source, whereby the suction tube is mounted on a positioning system for guiding the mouth of the suction tube to a drafting arrangement of the spinning station for recovery of the spinning process.
The invention also relates to a method for transferring a yarn end on a bobbin by means of the device according to the invention at the spinning unit of a ring spinning machine after finding the yarn end and sucking the yarn end into the mouth of a suction tube, wherein the mouth of the suction tube guides the yarn end back to the drafting device of a spinning station for recovery of the spinning process.
Furthermore, the invention relates to a ring spinning machine comprising a row of spinning stations, each having a drafting device, and comprising a maintenance robot which is reversibly displaceably arranged along the row of spinning stations, whereby the maintenance robot is provided with a yarn end transfer device according to the invention.
Background
Ring spinning machines comprise a row of spinning stations arranged next to each other, each comprising a roving drafting device from which the processed roving is carried to a twisting device from which the produced yarn is taken out and wound in a winding device to form a package on a tube placed on a rotatable spindle, thereby forming a bobbin, or in other words a cop, i.e. a tube with a yarn package. If yarn production is interrupted, for example, due to yarn breakage, it is necessary to resume yarn production at a given spinning station. During the recovery of the spinning process at the spinning station (where after the spinning break the roving feed roller of the drafting device is stopped, or the drafting device is in operation and fibres from the roving are sucked into the waste, etc.), the movement of the bead (traveller) on the flange of the ring is also terminated, which is usually registered by a sensor of the bead movement. Subsequently, it is necessary to find the end of the yarn on the package wound on the bobbin, unwind the yarn from the package, pass the yarn through the bead ring, the balloon-suppression cover (balloon limit) and the guiding eyelet and finally bring the end of the yarn back between the end rollers of the roving drafting device, so that during the recovery of spinning the end of the yarn is coupled to the end of the roving and thereby ready the spinning station for recovery of yarn production. All these maintenance operations are carried out during the permanently reversible vertical movement of the annular table and of the air-cap carrier, since the other spinning stations continue to produce yarn. Starting from the moment of finding the yarn end on the package on the bobbin, up to the moment of delivering the yarn end to the appliance of the spinning station, various transfer devices are used for transferring the yarn end, for example transfer devices according to EP391110 or according to US3,540,200 and others. By its very nature, these devices are yarn end transfer devices that perform a general movement in space.
There is a very small space at the spinning stations of the ring spinning machine, since the spacing between the spinning stations is, for example, only 70 or 75mm, and thus the requirements in terms of size and mobility place considerable restrictions on the transfer device. In addition, high demands are placed on the reliability and simplicity of the transfer apparatus.
Disclosure of Invention
The object of the present invention is to provide a simple and efficient, lightweight and reliable device for transferring yarn ends at a spinning station of a ring spinning machine after finding them on a bobbin.
The object of the invention is achieved by the device according to the invention for transferring yarn ends at a spinning unit of a ring spinning machine after the yarn ends on a bobbin have been searched, which device comprises a suction tube with a suction opening that can be assigned to the spinning unit, which suction tube is connected to a vacuum source, wherein the suction tube is mounted on a positioning system for guiding the suction opening of the suction tube to a drafting arrangement of the spinning unit for restoring the spinning process, characterized by a support member mounted on a vertical guide in a linearly displaceable manner and a horizontal arm mounted on the support member in a swivelling manner about a vertical axis, wherein the suction tube is mounted on the horizontal arm and is linearly displaceable in a horizontal direction with respect to the horizontal arm.
Preferably, the support member is coupled to a drive for vertical linear movement, the drive being formed by a rotary stepper motor.
Preferably, the horizontal arm is mounted on the support portion by its central part.
Preferably, the horizontal arm is coupled to a drive mounted on the support member.
Preferably, the drive of the horizontal arm is formed by a linear stepper motor or a rotary stepper motor with a rotary to linear motion conversion device.
Preferably, the suction tube is provided in a rear part remote from the mouth with a guide element slidably mounted on a linear guide on the horizontal arm and coupled to a drive for linear movement of the suction tube in the horizontal direction.
Preferably, the guiding element is provided with a lateral carrier which is fixed to one branch of the toothed belt, the belt being located at the lateral side of the horizontal arm and being wound around a driven gear pulley at the rear end of the horizontal arm, which driven gear pulley is mounted on the output shaft of the rotary drive, whereby at the front end of the horizontal arm the toothed belt is wound around a freely rotatable gear pulley.
Preferably, the linear, horizontal movement of the suction duct is formed by a rotary stepper motor.
Preferably, the suction tube is connected in the rear part to a suction inlet of an ejector, which is connected to a source of compressed air.
Preferably, a mechanical yarn gripping device coupled to the driver and control is arranged in the suction tube and/or a yarn cutting device coupled to the driver and control is arranged in the suction tube.
The object of the invention is achieved by a method for transferring a yarn end in accordance with the invention, which method uses a device in accordance with the invention for transferring the yarn end at the spinning unit of a ring spinning machine after having searched for the yarn end on a bobbin and sucked the yarn end into a suction opening of a suction tube, wherein the suction opening of the suction tube guides the yarn end back to a drafting device of the spinning unit for restoring the spinning process, characterized in that the suction opening of the suction tube is moved by a vertical linear movement, a horizontal linear movement or a swirl about the vertical axis in a horizontal plane, simultaneously performing all three movements, or simultaneously performing at least two movements and subsequently performing the remaining movements, or performing a separate movement of any one of the three movements in succession.
Preferably, during the movement of the mouth of the suction tube, the yarn end is sucked into the suction tube.
Preferably, the yarn end is led back to the drafting device and the yarn is cut in the suction duct by the yarn cutting device.
Preferably, the suction tube is brought back to the rest position after the yarn end is guided back to the drafting device.
The principle of a ring spinning machine comprising a row of spinning stations, each having a drafting device and a maintenance robot being reversibly displaceably arranged along the row of spinning stations, is that the maintenance robot is provided with a yarn end transfer device according to the invention.
The device is moved with a simple movement so that the device is easily controllable in space and when guiding the yarn into the working path at the spinning station to resume spinning, all positioning and movement operations instead of a human hand can be performed, whereby these operations comprise threading the yarn end into the bead ring on the ring flange, threading the yarn end into all elements at the spinning station while avoiding contact with the spinning station and other mechanisms of the maintenance robot, and finally guiding the yarn end to the drafting device and resumption of the spinning process caused thereby. The simple layout ensures adequate movement speed, durability of individual system components, and good operating time. Last but not least, the low weight achieved by the simple construction using electronic and pneumatic components is also advantageous.
Drawings
The invention is schematically illustrated in the drawings, in which the only figure 1 shows the arrangement of the yarn end transfer device at the spinning station of a ring spinning machine.
Detailed Description
The invention will be described with reference to an exemplary embodiment of a yarn end transfer device at a spinning station (also understood as a spinning unit) of a ring spinning machine.
The ring spinning machine comprises a row of identical spinning stations arranged next to each other. In principle, spinning stations are well known and therefore the entire spinning station will be described below in a simplified manner only. Those parts, elements and nodes of the spinning station which are of importance for the invention will be described in more detail. The spinning station comprises a roving drafting device, not shown, under which the yarn twisting and winding device is arranged. The roving is fed from a supply package, not shown, to a drafting device, after which the yarn formed passes through a guide eyelet, a balloon breaker and then through a bead which surrounds the circumference of the flange of the ring element 3, which ring element 3 is mounted in a holder on the ring table 2. After passing through the bead ring, the yarn produced is wound on a package 4 on the tube 1, forming a bobbin or tube yarn, which is placed on a vertical spindle, which rotates about its vertical longitudinal axis. The yarn packages on the tube 1 form bobbins, whereby the packages 4 on the tube 1 are formed by a continuous reversible vertical linear movement of the annular table 2 interacting with the yarn winding device after the yarn has passed through the bead ring (not shown) which is looped around the bobbin 1 on the flange of the annular member 3, whereby, as the bead ring is delayed after rotation of the spindle, a twist is produced on the yarn, thereby turning the processed roving into a yarn of the desired characteristics wound on the bobbin. The spindle is usually driven in its lower part by means of a flat belt driven by a drive shaft.
The maintenance robot is displaceably arranged along the row of spinning stations. The maintenance robot comprises means and appliances for performing individual maintenance operations at the spinning station or for performing at least some maintenance operations at the spinning station, wherein the maintenance operations are for putting the spinning station into operation for producing the yarn. The maintenance robot can be stopped at the selected spinning station.
One of these maintenance operations is to transfer the yarn end after detecting the yarn end on the bobbin or on the package 4 on the tube 1 by means of a not-shown detecting device.
For the purpose of transferring the yarn end 40 at the spinning station, the maintenance robot is provided with a yarn end transfer device at the spinning station of the ring spinning machine.
Such an operation of detecting the yarn end 40 is performed in a suitable manner and using suitable means, for example after removal of the bobbin from the spinning station and after transfer of the bobbin to the yarn end searching position by means of the device for detecting the yarn end 40 on the bobbin.
After the yarn end 40 on the bobbin is found, the yarn end detecting device is approached by the mouth 90 of the suction tube 9, which mouth 90 of the suction tube 9 is part of the yarn end 40 transfer device and sucks the detected yarn end 40 from the detecting device into its inner space, thereby taking over the yarn end 40.
The yarn end 40 transfer device then transfers the yarn end 40 in space with respect to the separate implement of the spinning station and with respect to the separate implement of the maintenance robot according to the sequence of maintenance operations, such as threading the yarn end 40 into the bead ring, threading the yarn end 40 into the balloon-inhibiting cover, threading the yarn end 40 into the guiding eyelet of the yarn above the bobbin and bringing the yarn end 40 between the end rollers of the roving drafting device, so that during the recovery of the spinning process the yarn end 40 is coupled to the end of the roving by which means the yarn production is recovered.
The device for the above-mentioned transfer of the yarn end 40 with respect to the spinning station and with respect to the equipment of the maintenance robot is provided with a support member 5, which support member 5 is mounted on a vertical linear guide 6 on the maintenance robot of the ring spinning machine in directions a+ and a-in a reversible vertical linear displacement. The support member 5 is coupled to a not-shown driving member whose vertical rectilinear motion is reversible. This not shown drive of the support member 5 consists of a rotary or linear drive which is coupled to the control device, ideally consisting of a rotary stepper motor. By means of this drive, the support part 5 can be controllably reversibly positioned vertically straight on the vertical straight guide 6.
The horizontal arm 7 is mounted on the support member 5 in reversible oscillation about a vertical axis R. The horizontal arm 7 swings reversibly in the horizontal plane in the directions b+ and B-. The horizontal arm 7 is mounted in its central part on the support part 5 in a reversible manner in a horizontal plane for moment balancing. The reversible oscillating movement of the horizontal arm 7 in the horizontal plane is controlled by a drive 70 mounted on the support member 5 mainly due to power and acceleration, whereby the movable part of the drive 70 is coupled to the horizontal arm 7. The drive 70 of the reversible oscillating movement of the horizontal arm 7 is preferably formed by a stepper motor or by a rotary stepper motor with a rotary to linear movement conversion device.
On the horizontal arm 7, a linear guide 8 is arranged in the length direction of the horizontal arm 7, and suction pipes 9 connected to a vacuum source are mounted on the horizontal arm 7 in the horizontal directions c+ and C-, i.e., in the length direction of the horizontal arm 7 so as to be reversibly slidable. The suction tube 9 is thus mounted on a positioning system and, when the yarn end 40 is returned to the drafting device of the spinning station, the suction tube 9 is controllably distributed by its mouth 90 to the spinning station of the ring spinning machine, to the individual appliances of the spinning station, during the transfer of the yarn end 40 sucked into the suction tube 9 by the suction mouth 90, and the suction tube 9 is also controllably positionable relative to other elements of the maintenance device, such as a yarn end 40 detection device or the like. The mouth 90 of the suction tube 9 is either straight, as shown by the broken line in the figure, or curved, as shown by the solid line in the figure, or is otherwise suitably shaped according to the arrangement of the spinning station and other mating elements.
The suction tube 9 is coupled to its reversible horizontal linear motion drive on a linear guide 8 on the horizontal arm 7.
In the exemplary embodiment shown, the suction tube 9 is provided in its rear part, i.e. in the region of the connection to the vacuum source, with a guide element 92, by means of which guide element 92 the suction tube 9 can be mounted on the horizontal arm 7 in a reversible horizontal linear sliding manner. The guide element 92 is provided with a side carrier 920, which side carrier 920 is fixedly connected to one branch of the toothed belt 10. The toothed belt is wound around a driven toothed pulley 11 at the rear end of the horizontal arm 7, which driven toothed pulley 11 is mounted on the output shaft of a rotary drive (ideally a rotary stepper motor 12). At the front end of the horizontal arm 7, the toothed belt 10 is wound around a toothed pulley 13 that is freely rotatable. With the side carrier 920 of the guide element 92 of the suction tube 9 connected to one branch of the toothed belt 10, the rotation of the reversibly slidable drive of the suction tube 9 causes a reversible horizontal linear movement of the suction tube 9 in the directions c+ and C-.
If we introduce a rectangular coordinate system in the assembly of the maintenance robot at the spinning machine of the ring spinning machine, where the axis X is perpendicular to the direction of the row of spinning stations, i.e. from the maintenance robot to the spinning stations, the axis Y is along the direction of the row of spinning stations, i.e. the direction of movement of the maintenance equipment along the row of spinning stations, and the axis Z is the direction of the height of the spinning machine, the spinning station or stations, then the support member 5 can slide reversibly straight on the axis Z, the horizontal arm 7 swings reversibly about the vertical axis R in a horizontal plane, which is movable in the direction of the axis Y, and the suction tube 9 is slidable reversibly straight horizontally in the direction of the axis X.
The vacuum source of the suction tube 9 is in the illustrated example of embodiment an ejector (not shown), which is mounted on the guiding element 92, for example, whereby the ejector is connected to the source of compressed air via a conduit 93 and the ejector suction port is connected to the rear end of the suction tube 9. Thus, air sucked in by the ejector suction port due to compressed air from the duct 93 is sucked in by the mouth 90 of the suction tube 9 and blown out by the outlet opening 94 behind the ejector. An outlet opening 94 behind the ejector is, for example, connected to the waste space to prevent waste sucked in by the suction pipe 9 from being dispersed into the surroundings of the machine.
In an example of an embodiment not shown, the suction tube 9 is connected to an external vacuum source or the like by means of a suitable hose or tube.
In the inner space of the suction tube 9, for the purpose of performing an appropriate transfer step on the yarn to avoid untwisting, for example, due to suction or the like, a mechanical yarn clamp, not shown, is arranged at an appropriate distance from the mouth 90 of the suction tube 9 for intentional capturing of the yarn. The clamp is connected to the driver and the control.
Furthermore, in the inner space of the suction tube 9, a yarn dividing device, not shown, is arranged at a suitable distance from the mouth 90 of the suction tube 9 for dividing the yarn end sucked in the waste into shorter length sections, and also for separating the end portion of the damaged yarn end, which is damaged, for example, by untwisting due to suction, or otherwise damaged, from the undamaged portion of the yarn end for the recovery of the subsequent spinning process. The yarn dividing device is connected to the driving member and the control member.
Preferably, both the clamp and the yarn dividing device are driven by compressed air, so that the clamp and the yarn dividing device are connected to a source of compressed air, which allows further weight saving of the whole assembly.
The device works as follows: if the need to transfer the yarn end 40 arises, the mouth 90 of the suction tube 9 moves the yarn end 40 of the yarn sucked into the suction tube 9 relative to the spinning station and other instruments of the maintenance robot by performing a set of consecutive or at least two simultaneous individual movements, so as to perform the desired trajectory at the desired time, speed, etc. The spatial movement of the suction duct 9, in particular with respect to the instantaneous spatial position of the mouth 90 of the suction duct 9, is controlled by a control device, not shown, to which a separate drive of the device is coupled. The control device is provided with means for controlling the direction, speed, acceleration etc. of the individual drives. For better control, the device is provided with a position sensor for the individual movable elements, such as for the individual drives. During the transfer described above, after the yarn end 40 at the spinning station of the ring spinning machine has found the yarn end 40 on the bobbin and after the yarn end 40 is sucked into the mouth 90 of the suction tube 9, the mouth 90 of the suction tube 9 is moved in the space of the spinning station and in the space of the maintenance robot to gradually guide the yarn end back into the working path at the spinning station of the ring spinning machine and resume the spinning process. The mouth 90 of the suction tube 9 is moved by reversible vertical rectilinear movement, reversible horizontal rectilinear movement and oscillating movement in the horizontal plane, whereby all three movements are performed simultaneously, or at least two movements are performed simultaneously and then the remaining movements are performed, or the mouth is moved in successive individual movements, which causes a complex 3D movement of the mouth 90 of the suction tube 9 with respect to the individual elements of the spinning station and with respect to the individual elements of the maintenance robot. Meanwhile, during the movement of the mouth 90 of the suction tube 9, the yarn end 40 is acted upon by the suction of the suction tube 9, and after guiding the yarn end 40 to the drafting device, the yarn end 40 in the suction tube 9 is separated by the dividing device and sucked away. Next, after the yarn end 40 has been guided to the drafting device, the suction tube 9 is returned to its initial rest position and the entire positioning device is also returned to its initial position outside the spinning station. In order to avoid undesired contact between the elements of the transfer device according to the invention and other elements of the spinning or maintenance station (which elements may also be moving or standing), and also to avoid undesired contact between the yarn being taken up during the movement of the mouth portion 90 of the suction tube 9 between the suction tube 9 and the package on the bobbin 1 (and optionally also by other means of the spinning station), an active obstacle avoidance and positioning movement of the mouth portion 90 of the suction tube 9 is performed during the movement of the suction tube 9.
List of reference numerals
1. Pipe
2. Annular workbench
3. Ring-shaped piece
4. Roll package
40. Yarn end
5. Support member
6. Vertical linear guide
7. Horizontal arm
70. Driving piece
8. Linear guide
9. Suction tube
90. Oral part
92. Guide element
920. Lateral carrier
93. Source(s)
94. An outlet
10. Toothed belt
11. Gear belt wheel
12. Stepping motor
13. Gear belt wheel
R vertical axis
A + -A - Movement of the guide 6
B + -B - Exercise machine
C + -C - Movement of the arm 7.
Claims (15)
1. An apparatus for transferring yarn ends at a spinning unit of a ring spinning machine after searching for yarn ends on a bobbin, the apparatus comprising a suction tube (9) having a suction opening (90) that is dispensable to the spinning unit, the suction tube (9) being connected to a vacuum source, wherein the suction tube (9) is mounted on a positioning system for guiding the suction opening (90) of the suction tube (9) to a drafting device of the spinning unit for restoring a spinning process, the positioning system being characterized by
A support part (5) and a horizontal arm (7), the support part (5) being mounted on a vertical guide (6) in a linearly displaceable manner, the horizontal arm (7) being mounted on the support part (5) in a swivelling manner about a vertical axis (R), wherein the suction tube (9) is mounted on the horizontal arm (7) and in a horizontal direction (C) + -C - ) Can be displaced linearly relative to the horizontal arm (7).
2. An apparatus for transferring yarn ends according to claim 1, characterised in that the support member (5) is coupled to a first drive for vertical linear movement, which is formed by a rotary stepper motor.
3. An apparatus for transferring yarn ends according to claim 1 or 2, characterized in that the horizontal arm (7) is mounted on the support member (5) by its central part.
4. The device for transferring yarn ends according to claim 1 or 2, characterized in that the horizontal arm (7) is coupled to a second drive (70) mounted on the support member (5).
5. An apparatus for transferring yarn ends according to claim 4, characterised in that said second drive (70) of said horizontal arm (7) is formed by a linear stepper motor or a rotary stepper motor with a rotary to linear movement conversion means.
6. Device for transferring yarn ends according to claim 1 or 2, characterized in that the suction tube (9) is provided with a guide element (92) in the rear part remote from the suction mouth (90), which guide element (92) is slidably mounted on a linear guide (8) on the horizontal arm (7), and that the guide element (92) is coupled to a third drive (12) for linear movement of the suction tube (9) in the horizontal direction.
7. An apparatus for transferring yarn ends according to claim 6, characterised in that the guiding element (92) is provided with a lateral carrier (920), which lateral carrier (920) is fixed to one branch of a toothed belt (10), which toothed belt (10) is located at the lateral side of the horizontal arm (7) and is wound around a driven gear pulley (11) at the rear end of the horizontal arm (7), which driven gear pulley (11) is mounted on the output shaft of the third drive (12), whereby, at the front end of the horizontal arm (7), the toothed belt (10) is wound around a freely rotatable gear pulley (13).
8. An apparatus for transferring yarn ends according to claim 6, characterised in that said third driving member (12) of the rectilinear horizontal movement of the suction tube (9) is formed by a rotary stepper motor.
9. An apparatus for transferring yarn ends according to claim 1 or 2, characterized in that the suction tube (9) is connected in the rear part to the suction inlet of an ejector, which ejector is connected to a source (93) of compressed air.
10. Device for transferring yarn ends according to claim 1 or 2, characterized in that a mechanical yarn gripping device coupled to a fourth drive and control is arranged in the suction tube (9) and/or a yarn cutting device coupled to a fourth drive and control is arranged in the suction tube (9).
11. Ring spinning machine comprising a row of spinning units, each having a drafting device and a maintenance robot arranged reversibly movably along the row of spinning units, the maintenance robot being provided with a device for transferring yarn ends according to any one of claims 1 to 10.
12. Method for transferring yarn ends at the spinning unit of a ring spinning machine after searching for the yarn ends on a bobbin and sucking the yarn ends into a suction mouth (90) of a suction tube (9) using the apparatus according to any one of claims 1 to 10, wherein the suction mouth (90) of the suction tube (9) guides the yarn ends back to a drafting device of the spinning unit for resuming the spinning process,
it is characterized in that
The suction mouth (90) of the suction tube (9) is moved by a vertical straight line (C) + -C - ) Horizontal linear motion (A) + -A - ) Or in a horizontal plane (B) + -B - ) Is moved in a rotary motion about the vertical axis (R) and simultaneously performs all three movements, or simultaneously performs at least two movements and then performs the remaining movements, or performs a single movement of any one of the three movements in succession.
13. Method according to claim 12, characterized in that during the movement of the suction mouth (90) of the suction tube (9), the yarn end is sucked into the suction tube (9).
14. Method according to claim 12 or 13, characterized in that the yarn is cut in the suction tube (9) by a yarn cutting device after the yarn end is led back to the drafting device.
15. Method according to claim 12 or 13, characterized in that the suction tube (9) is brought back to a rest position after the yarn end has been led back to the drafting device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ2018-48A CZ307898B6 (en) | 2018-01-31 | 2018-01-31 | A device for handling the yarn end at the spinning point of an annular spinning machine, a method of handling the yarn end and an annular spinning machine |
| CZPV2018-48 | 2018-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110093696A CN110093696A (en) | 2019-08-06 |
| CN110093696B true CN110093696B (en) | 2023-07-25 |
Family
ID=65138890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910092255.8A Active CN110093696B (en) | 2018-01-31 | 2019-01-30 | Device and method for transferring yarn ends and ring spinning machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3521491B1 (en) |
| CN (1) | CN110093696B (en) |
| CZ (1) | CZ307898B6 (en) |
| ES (1) | ES2898931T3 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112703279A (en) | 2018-09-19 | 2021-04-23 | 里特机械公司 | Method for operating a maintenance robot of a ring spinning machine |
| CH715390A1 (en) | 2018-09-27 | 2020-03-31 | Rieter Ag Maschf | Method for operating a ring spinning machine. |
| CN111893608B (en) * | 2019-05-06 | 2022-08-26 | 拉克施米机械制造有限公司 | Automatic piecing unit and automatic piecing method for piecing broken yarn in ring spinning machine |
| CZ2019389A3 (en) | 2019-06-19 | 2020-12-30 | Rieter Cz S.R.O. | Equipment for sucking and transporting yarn for arranging on the service robot of a textile machine for yarn production, a service robot for operating a textile machine workplace and a textile machine |
| CZ2019390A3 (en) | 2019-06-19 | 2020-12-30 | Rieter Cz S.R.O. | The service robot of the ring spinning machine, the ring spinning machine and the method of operation of the service r |
| CN111348479B (en) * | 2020-04-07 | 2024-04-26 | 东莞市奇为电机科技有限公司 | Novel tilting mechanism |
| CN115849109B (en) * | 2022-11-22 | 2024-03-22 | 浙江浪普制衣有限公司 | Spinning production line outlet machine with guiding clamping function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295633A (en) * | 1998-03-30 | 2001-05-16 | 青泽纺织机械有限公司 | Method and device for spinning with a suppressed yarn balloon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119156B (en) * | 1959-03-05 | 1961-12-07 | Ernst Jacobi Fa | Yarn break suction device for spinning machines, especially for ring spinning machines |
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- 2019-01-21 EP EP19152787.8A patent/EP3521491B1/en active Active
- 2019-01-21 ES ES19152787T patent/ES2898931T3/en active Active
- 2019-01-30 CN CN201910092255.8A patent/CN110093696B/en active Active
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| CN1295633A (en) * | 1998-03-30 | 2001-05-16 | 青泽纺织机械有限公司 | Method and device for spinning with a suppressed yarn balloon |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3521491B1 (en) | 2021-09-01 |
| CZ201848A3 (en) | 2019-07-31 |
| CN110093696A (en) | 2019-08-06 |
| ES2898931T3 (en) | 2022-03-09 |
| CZ307898B6 (en) | 2019-07-31 |
| EP3521491A1 (en) | 2019-08-07 |
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