CN217920800U - Reel side yarn suction nozzle and winding machine - Google Patents
Reel side yarn suction nozzle and winding machine Download PDFInfo
- Publication number
- CN217920800U CN217920800U CN202221310209.4U CN202221310209U CN217920800U CN 217920800 U CN217920800 U CN 217920800U CN 202221310209 U CN202221310209 U CN 202221310209U CN 217920800 U CN217920800 U CN 217920800U
- Authority
- CN
- China
- Prior art keywords
- spool
- reel
- suction
- suction nozzle
- comb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/44—Arrangements for rotating packages in which the package, core, or former is engaged with, or secured to, a driven member rotatable about the axis of the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
- B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Textile Engineering (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
A spool-side yarn suction nozzle and a winding machine, the spool-side yarn suction nozzle comprising: an arm (28) movable from at least one rest position to at least one working or suction position, said arm (28) being fluidly connected to a suction source to generate a suction airflow, said arm (28) terminating in a suction slit (32) having a rectilinear structure elongated in a transverse direction (T-T). The suction slit (32) is provided with a deflector (44) and/or a comb (48); -said deflector (44) is oriented so as to cause the air flow generated between the relative reel (12) and the suction slit (32) to be squashed, accelerating said air flow, thus promoting the clamping of the free end of the yarn on the reel side; the comb (48) includes a roughened surface (64). The winding cycle is shortened due to the shorter suction time required to catch the yarn end.
Description
Technical Field
The utility model relates to a spool side yarn suction nozzle and a winder with spool side yarn suction nozzle.
Background
It should be noted that the term "thread" or "monofilament" or "continuous thread" refers to a single filament or continuous filament (for example in the case of silk, synthetic or synthetic fibers), while the term "yarn" refers to a set of fibrils of varying length that are parallel and joined together by twisting. In the following, one or the other term will be used indiscriminately, with the understanding that the application of the invention is not limited to one or the other type.
As is well known, in automatic winding machines, the yarn produced by a spinning machine and wound into a spool is unwound by a special unwinding device, quality controlled by a sensor (yarn cleaner), and rewound by a special winding device (drum) to form a spool. Specifically, if the characteristic parameter of the yarn is not acceptable during the winding of the bobbin yarn, the yarn cleaner interrupts the winding by cutting the yarn, thereby generating two ends, a bobbin side and a reel side, respectively. A splicing cycle follows, the purpose of which is to eliminate the defects on the reel and to intercept the two ends, to position them in the yarn splicer, reestablishing the continuity of the yarn before resuming the winding process.
The truncation of the free yarn end is performed by two dedicated suction nozzles (commonly called spool-side and spool-side yarn suction nozzles) connected to a device that generates the necessary vacuum to achieve the flow conditions required to pick up the two yarns. Specifically, after the yarn is cut by the yarn cleaner, the spool is generally rotated to allow the winding drum on which the yarn is wound to reverse its rotation, so that the free end is moved toward the spool, thereby allowing the spool-side yarn suction nozzle to suck it.
In this case, a problem arises in that the spool side yarn end must be picked up. In fact, picking up the yarn ends is particularly problematic, since the yarn tends to adhere easily to the surface of the reel, or to twist as the yarn cleaner cuts, to cross other loops, or to be arranged in an optimal configuration not suitable for being sucked by the suction nozzle.
It is known to use a reel-side yarn suction nozzle which, when connected to a suitable suction device, generates an air flow that is advantageous for promoting adhesion of the yarn end to the surface of the reel. Typically, the input portion of such a nozzle has a suitable shape and conical geometry in order to achieve a high-speed flow along the entire width of the reel, measured parallel to the axis of rotation of the tube on which the reel is wound, on a local level.
However, due to the inability to pick up the end of the yarn, the winding unit often has to repeat the suction cycle a number of times, thus reducing the efficiency of the unit itself and consequently the productivity of the whole machine.
Another known technique is to use special comb members (comb) located inside the suction nozzle, directly close to the input portion of the suction nozzle, which facilitate the holding and therefore the clamping of the ends of the yarns.
Such solutions generally guarantee a higher efficiency compared to a suction nozzle without a comb, but also generally require operation at a greater distance from the reel to prevent the so-called "loop" in which the end of the false yarn, consisting of a winding coil loosened by imperfect adhesion to the surface of the reel, is sucked together with the end of the yarn.
SUMMERY OF THE UTILITY MODEL
Therefore, there is a need to address the disadvantages and limitations noted with reference to the prior art.
The winder according to the invention achieves this requirement.
According to the utility model discloses an aspect provides a spool side yarn suction nozzle, include: an arm movable from at least one rest position to at least one working or suction position, the arm being fluidly connected to a suction source to generate a suction airstream. The arm terminates in a suction slit having a rectilinear structure elongated in the transverse direction, the suction slit having an upper lip and a lower lip with respect to a section perpendicular to the first rotation axis of the relative reel and with respect to the second rotation axis of the movable arm. Wherein the suction slit is provided with a deflector and/or a comb. Wherein the deflector is oriented so as to cause the air flow generated between the relative reel and the suction slit to be squashed, accelerating the air flow, thus promoting the clamping of the free end of the yarn on the reel side. Wherein the comb comprises a roughened surface.
Further, the deflector and/or the comb is arranged at the upper lip of the suction slit.
Further, the deflector and the comb are arranged on opposite sides of the upper lip, the deflector facing away from the lower lip, and the comb facing the lower lip.
Further, the deflector and the comb are arranged substantially in alignment and adjacent to each other.
Further, the upper lip is disposed to recede from the lower lip with respect to a propagation direction of a suction airflow passing through the suction slit.
Further, the deflector comprises a plate, the lateral ends of which are provided with chamfered walls, i.e. inclined at an angle of 20 ° to 40 °, preferably 30 °, with respect to the transverse direction.
Further, the chamfer walls are connected with a connection radius R of 1 to 5mm, preferably 3mm, to prevent entanglement of the yarn ends at the deflector.
Further, the comb comprises a roughened surface obtained by means of a surface roughening treatment, the roughened surface being located at a portion of the comb opposite the suction slit and facing the reel.
Further, the roughness Ra of the rough surface of the comb is between 3 and 20 μm.
Further, the rough surface has an isotropic roughness profile.
Further, the roughened surface extends parallel to the transverse direction along the entire transverse width of the comb.
According to another aspect of the present invention, there is provided a winding machine, including: at least one winding unit having a reel under formation and a reel-side yarn suction nozzle; and a drive for controlling the juxtaposition and distance of the reel-side yarn suction nozzle relative to the reel being formed, wherein the winding machine is provided with a processing and control unit which is operatively connected to the drive and which is programmed so that, when a reel-side yarn end is sucked, the drive brings the deflector at a distance of between 1mm and 5mm, preferably at a distance of 3mm, from the side of the reel.
Drawings
Other features and advantages of the present invention will be more clearly understood from the description of preferred and non-limiting embodiments of the invention given below, in which:
fig. 1 shows a perspective view of a spool-side yarn suction nozzle according to an embodiment of the present invention;
FIG. 2 shows a perspective view of the enlarged detail II shown in FIG. 1;
fig. 3 shows a schematic side view of a winding machine comprising a reel-side yarn nozzle according to an embodiment of the invention, in an initial stage of the reel formation;
FIG. 4 shows an enlarged detail view IV shown in FIG. 3;
fig. 5 shows a schematic side view of a winding machine comprising a reel-side yarn nozzle according to an embodiment of the invention, in the final stage of the reel formation;
fig. 6 shows an enlarged detail VI shown in fig. 5.
Elements or parts of elements common to the embodiments described below will be denoted by the same reference numerals.
Detailed Description
With reference to fig. 1 to 6, reference numeral 4 generally designates a spool-side yarn suction nozzle.
In general, the spool-side thread suction nozzle 4 is applied to a winding machine 8, which comprises at least one winding unit with a shaped spool 12.
The shaped reel 12 is obtained by winding the yarn on the opposite tube 16 in a known manner.
As indicated by way of introduction, the yarn produced and wound into a spool is unwound by means of a special unwinding device, quality controlled by a sensor (yarn cleaner) and rewound by means of a special winding device (drum 20) to form the reel 12. If the characteristic parameter of the yarn is not acceptable during the winding of the bobbin yarn, the yarn cleaner interrupts the winding by cutting the yarn, thereby generating two ends, a bobbin-side yarn end (not shown) and a reel-side yarn end 24, respectively. In order to restore the continuity of the yarn, it is first necessary to restore the ends of the yarn and then to join them using special yarn splicers.
The spool-side thread end 24 is intercepted by the spool-side thread suction nozzle 4, which comprises an arm 28 that is movable from at least one rest position to at least one working or suction position. In the rest position, the arm 28 is in a remote position or in any case not close to the reel 12, while in the working position, the arm 28 is juxtaposed with the reel 12 so as to be able to intercept the reel-side end 24.
The winder 8 is provided with drive means (not shown) for controlling the juxtaposition and distance of the arms 28 relative to the forming winder 12, as described further below.
The arm 28 is fluidly connected to a suction source (not shown) to generate a suction air flow having a propagation direction X-X.
The arm 28 terminates in a suction slit 32 having a rectilinear configuration elongated in the transverse direction T-T.
The suction slit 32 has an upper lip 36 and a lower lip 40 with respect to a section perpendicular to the first rotation axis of the associable reel R1 and with respect to the second rotation axis R2 of the movable arm 28.
It should be noted that when the arm 28 is brought into the working position, the upper lip 36 is in a higher position, i.e. further to the side and facing the reel 12. In the resting state, arm 28 may be rotated to reverse the position of the lip.
According to a possible embodiment, said upper lip 36 is set back from said lower lip 40 with respect to the propagation direction X-X of the suction air flow through the suction slit to the reel.
Preferably, the suction slit 32 has a transverse extension L, measured parallel to the transverse direction T-T, which is greater than or equal to the transverse extension of the reel 12, measured parallel to the axis of rotation of the reel R1.
Advantageously, said suction slit 32 is provided with a deflector 44 and/or a comb 48.
It should be noted that the deflector 44 and the comb 48 can be present separately or together on the spool-side yarn suction mouth 4.
Their co-existence certainly leads to a synergistic effect in terms of improving the gripping ability of the spool side yarn end 24.
Preferably, the deflector 44 is oriented so as to cause the air flow generated between the relative reel 12 and the suction slit 32 to be squashed, accelerating the air flow, thus promoting the clamping of the free end of the yarn on the reel side.
According to one embodiment, the deflector 44 and/or the comb 48 is arranged at the upper lip 36 of the suction slit 32.
According to one embodiment, the deflector 44 and the comb 48 are arranged on opposite sides with respect to the upper lip 36; in particular, deflector 44 faces away from lower lip 40, i.e. upwards when arm 28 is in the working position, while comb 48 faces lower lip 40, i.e. downwards when arm 28 is in the working position.
According to a possible embodiment, the deflector 44 and the comb 48 are arranged substantially aligned and adjacent to each other.
According to one embodiment, the deflector 44 comprises a plate 56, the plate side ends being provided with chamfered walls 60, i.e. inclined by an angle β of between 20 ° and 40 °, preferably 30 °, with respect to said transverse direction T-T.
For example, the chamfered walls 60 are connected at a connection radius R of 1 to 5mm, preferably 3mm, to prevent entanglement of the yarn ends at the deflector.
The comb 48 comprises a roughened surface 64 to make it easier to retain the end of the dummy yarn before it enters the suction slit 32 of the reel 12, allowing only the free end of the yarn to be intercepted by the comb 48.
For example, the comb 48 comprises a rough surface 64 obtained by a surface roughening treatment (for example a plasma treatment) at a portion of the comb 48 opposite the suction slit 32 and facing the reel 12.
According to one embodiment, the rough surface 64 of the comb 48 has a roughness Ra of between 3 μm and 20 μm.
According to one embodiment, the rough surface 64 has an isotropic roughness profile (isotropic roughness profile); in other words, the preferred direction in which the roughness grooves extend, such as in the case of parallel or cross knurling, cannot be identified.
According to a possible embodiment, rough surface 64 extends parallel to transverse direction T-T along the entire transverse width of comb 48, so as to cover the entire transverse extension of reel 12.
According to a possible embodiment, the winder 8 is equipped with a processing and control unit (not shown) operatively connected to said drive and programmed so that, during the suction phase of the spool side yarn end 24, the drive brings the deflector 44 at a distance d of between 521mm and 5mm, preferably 3mm, from the side of the spool 12.
The control of the arm position 28 by the processing and control unit may be performed, for example, with the aid of an optical encoder. The diameter of the formed reel 12 is known and the positioning of the reel-side yarn suction nozzle 4 relative to the reel 12 can be managed to ensure a predetermined distance d of the deflector 44 from the side 52 of the reel 12.
It will be appreciated from the description that the above processing method overcomes the disadvantages of the prior art.
First of all, the main advantages of the present invention, especially in the case of particularly "slippery" yarns (for example viscose, polyester, blends) and/or fine count yarns, are as follows:
the winding cycle is shortened due to the short suction time required to catch the yarn end;
thereby improving the efficiency of the machine head and improving the productivity of the winding machine;
the improvement in the quality of the yarn wound on the reel is associated with a reduction in the instances in which the winding of the reel is disturbed;
reducing the possibility of single-end alarms, primarily due to the loose loops becoming tangled together as a result of repeated attempts to pick up the end of the yarn;
thus, there is less downtime in the production process after winding (warping), knitting, etc.) in relation to the forming quality of the reel.
It should be noted that both the deflector and the comb contribute to solving the technical problem of the present invention, since they improve the catching efficiency of the side yarn end of the reel.
In fact, the deflector increases the suction capacity of the suction nozzle, while the rough surface of the comb member makes it easier to retain the sucked dummy yarn end of the reel before entering the suction slit so that only the free yarn end is caught by the comb member.
These two elements, i.e. the deflector and the comb, cooperate with each other in such a way that the rough surface is better able to retain the ends of the false yarns, because of the increased suction capacity of the suction slit.
A person skilled in the art may apply to the solution described above many modifications and variations to meet contingent and specific requirements.
The scope of protection of the invention is defined in the appended claims.
Claims (15)
1. A spool side yarn suction nozzle (4), characterized by comprising:
an arm (28) movable from at least one rest position to at least one working or suction position, said arm (28) being fluidly connected to a suction source to generate a suction airflow,
the arm (28) terminates in a suction slit (32) having a rectilinear structure elongated in a transverse direction (T-T), the suction slit (32) having an upper lip (36) and a lower lip (40) with respect to a section perpendicular to a first rotation axis (R1) of the relative reel (12) and with respect to a second rotation axis (R2) of the movable arm (28),
wherein the suction slit (32) is provided with a deflector (44) and/or a comb (48),
wherein the deflector (44) is oriented so as to cause the air flow generated between the relative reel (12) and the suction slit (32) to be squashed, accelerating the air flow and thus promoting the clamping of the free end of the yarn on the reel side,
wherein the comb (48) comprises a roughened surface (64).
2. Spool-side yarn suction nozzle (4) according to claim 1, characterized in that the deflector (44) and/or the comb (48) is arranged at the upper lip (36) of the suction slit (32).
3. Spool-side yarn suction nozzle (4) according to claim 1 or 2, characterized in that the deflector (44) and the comb (48) are arranged on opposite sides of the upper lip (36), the deflector (44) facing away from the lower lip (40) and the comb (48) facing the lower lip (40).
4. Spool side yarn suction nozzle (4) according to claim 1, characterized in that the deflector (44) and the comb (48) are arranged substantially aligned and adjacent to each other.
5. Spool side yarn suction nozzle (4) according to claim 1, characterized in that the upper lip (36) is arranged set back from the lower lip (40) with respect to a propagation direction (X-X) of a suction air flow through the suction slit (32).
6. Spool side yarn suction nozzle (4) according to claim 1, characterized in that the deflector (44) comprises a plate, the side ends of which are provided with chamfered walls (60), i.e. inclined by an angle (β) of 20 ° to 40 ° with respect to the transverse direction (T-T).
7. The spool side yarn suction nozzle (4) according to claim 6, characterized in that the chamfer wall (60) is connected with a connection radius R of 1 to 5mm to prevent yarn ends from tangling at the deflector (44).
8. The spool-side yarn suction nozzle (4) according to claim 1, characterized in that the comb (48) comprises a roughened surface (64) obtained by means of a surface roughening treatment, the roughened surface being located at a portion of the comb (48) opposite the suction slit (32) and facing the spool (12).
9. Spool-side yarn suction nozzle (4) according to claim 8, characterized in that the roughness Ra of the rough surface (64) of the comb (48) is between 3 μm and 20 μm.
10. Spool side yarn suction nozzle (4) according to claim 8 or 9, characterized in that the rough surface (64) has an isotropic roughness profile.
11. Spool-side yarn suction nozzle (4) according to claim 8, characterized in that the roughened surface (64) extends parallel to the transverse direction (T-T) along the entire transverse width of the comb (48).
12. Spool side yarn suction nozzle (4) according to claim 6, characterized in that the angle (β) is 30 °.
13. Spool side yarn suction nozzle (4) according to claim 7, characterized in that the connecting radius R is 3mm.
14. A winding machine (8), characterized by comprising: at least one winding unit with a forming reel (12) and a reel-side yarn nozzle (4) according to any one of claims 1 to 13; and a drive for controlling the juxtaposition and distance of the reel-side yarn suction nozzle (4) relative to the forming reel (12), wherein the winding machine (8) is provided with a processing and control unit which is operatively connected to the drive and which is programmed such that, when a reel-side yarn end (24) is sucked, the drive brings a deflector (44) to a distance (d) of between 1mm and 5mm from the side (52) of the reel (12).
15. Spooling machine (8) as claimed in claim 14, characterized in that the drive brings a deflector (44) to a distance of 3mm from the side (52) of the reel spool (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102021000016862 | 2021-06-28 | ||
| IT102021000016862A IT202100016862A1 (en) | 2021-06-28 | 2021-06-28 | WIRE SUCTION NOZZLE ON THE PACKAGE SIDE AND RELATIVE WINDER EQUIPPED WITH THE SAID WIRE SUCTION NOZZLE ON THE PACKAGE SIDE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217920800U true CN217920800U (en) | 2022-11-29 |
Family
ID=77627418
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221310209.4U Active CN217920800U (en) | 2021-06-28 | 2022-05-27 | Reel side yarn suction nozzle and winding machine |
| CN202210587827.1A Pending CN115594018A (en) | 2021-06-28 | 2022-05-27 | Reel side yarn suction nozzle and winding machine having the same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210587827.1A Pending CN115594018A (en) | 2021-06-28 | 2022-05-27 | Reel side yarn suction nozzle and winding machine having the same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4112522B1 (en) |
| CN (2) | CN217920800U (en) |
| IT (1) | IT202100016862A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH334274A (en) * | 1953-11-03 | 1958-11-30 | Reiners Walter Dr Ing | Suction nozzle for detecting, locating and lifting thread ends on a machine processing yarn, e.g. B. a winding machine |
| GB2143548A (en) * | 1983-07-21 | 1985-02-13 | Hollingsworth | Yarn end catching |
| JPH0451476U (en) * | 1990-09-07 | 1992-04-30 | ||
| JPH0649457U (en) * | 1992-12-16 | 1994-07-08 | 東レエンジニアリング株式会社 | Suction mouse |
| DE102011114765A1 (en) * | 2011-10-01 | 2013-04-04 | Oerlikon Textile Gmbh & Co. Kg | Comb strip for a suction nozzle of a workstation of a cheese-producing textile machine |
| JP2015044685A (en) * | 2013-08-29 | 2015-03-12 | 村田機械株式会社 | Yarn end capturing device and yarn winding device |
-
2021
- 2021-06-28 IT IT102021000016862A patent/IT202100016862A1/en unknown
-
2022
- 2022-05-17 EP EP22173698.6A patent/EP4112522B1/en active Active
- 2022-05-27 CN CN202221310209.4U patent/CN217920800U/en active Active
- 2022-05-27 CN CN202210587827.1A patent/CN115594018A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4112522A1 (en) | 2023-01-04 |
| CN115594018A (en) | 2023-01-13 |
| IT202100016862A1 (en) | 2022-12-28 |
| EP4112522B1 (en) | 2024-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4082930B2 (en) | Yarn twisting device | |
| JP6080153B2 (en) | Spinning machine and method for interrupting the production of yarn in a spinning machine | |
| JP3704179B2 (en) | Yarn end preparation equipment for textile machines that manufacture twill wound bobbins | |
| CN1188334C (en) | Method winding continuous yarn to one working position of spinning hobbin machine cone winding | |
| JP2018080058A (en) | Method and device for depositing end part of yarn on bobbin in defined manner, and spinning/winding machine for performing it | |
| CN107416599B (en) | Method and winding station for processing yarn ends | |
| CN217920800U (en) | Reel side yarn suction nozzle and winding machine | |
| JP2019163164A (en) | Method of automatic yarn-piecing at fabric machine work station and fabric machine | |
| JP2017115290A (en) | Yarn splicing device | |
| JPH026035Y2 (en) | ||
| JP5995633B2 (en) | Suction nozzle for each working part of textile machine that manufactures twill winding package | |
| JP6012374B2 (en) | Comb strip for suction nozzle of each working part of textile machine that manufactures twill winding package | |
| US4090676A (en) | Yarn or thread guiding device | |
| US1713938A (en) | Wtlfbed whiteley | |
| CN105314462A (en) | Method and device for controlling the negative pressure on a thread catching or cleaning nozzle of a workstation of a textile machine | |
| US10400362B2 (en) | Method for depositing a yarn end on a bobbin in a defined manner, a device and a spinning and winding machine for performing the method | |
| CN111747233A (en) | Method for producing a piecing connection at a textile machine station and textile machine station | |
| CN217757797U (en) | Semi-automatic doffing spinning machine | |
| CN112110281B (en) | Yarn winding device and method for forming package yarn | |
| CN114852789A (en) | Method for operating a workstation of a spinning machine and workstation | |
| JP2746230B2 (en) | Spinning winder and yarn end processing method | |
| JPS6221708B2 (en) | ||
| JPH0316848Y2 (en) | ||
| CN102556760A (en) | Workstation of a winding machine | |
| JPH02178180A (en) | Yarn changing method in filament winder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |