US20040238684A1 - Synthetic-resin core for winding yarn into reels with slots, for automatically retaining the turns of reserve yarn - Google Patents
Synthetic-resin core for winding yarn into reels with slots, for automatically retaining the turns of reserve yarn Download PDFInfo
- Publication number
- US20040238684A1 US20040238684A1 US10/492,280 US49228004A US2004238684A1 US 20040238684 A1 US20040238684 A1 US 20040238684A1 US 49228004 A US49228004 A US 49228004A US 2004238684 A1 US2004238684 A1 US 2004238684A1
- Authority
- US
- United States
- Prior art keywords
- slot
- yarn
- turns
- appendages
- reserve
- 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.)
- Abandoned
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/04—Carriers or supports for textile materials to be treated
- D06B23/042—Perforated supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/28—Arrangements for positively securing ends of material
-
- 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
Definitions
- the present invention relates to a support or core onto which yarn is wound to form reels for use in subsequent processes (dyeing, warping, weaving or other processes), and which has an annular area at one end or at both ends of the support, for the winding of a number of turns of “reserve”, yarn which is available and intended for connection to the yarn on adjacent reels.
- a channel is provided to receive the reserve turns.
- the reserve turns of yarn are rather unstable and become unwound easily, especially from the end of the reserve yarn, as a result of the handling to which the reels are subjected during the subsequent stages of processing. Arrangements are therefore made to retain the end of the reserve yarn, usually by fixing it manually in suitable notches or by other means.
- a means for creating, in the aforesaid annular channel, at least one slot extending circumferentially and having outer profiles which lead into the slot, in order to automatically engage the reserve yarn, the yarn of the various turns of the reserve yarn thus being repeatedly wedged in the slot so that a retaining effect is obtained.
- At least two slots are provided along the channel for the reserve yarn.
- a wall can also be provided within the slot or within each of the slots if necessary, this wall being spaced apart from the aforesaid slot to create a gap. Said wall can extend from the terminal annular edge toward the inside of the core, or can extend from the inside until it lies alongside and within the terminal edge.
- the slot or each of the slots can have a wavy profile; usually, it can have a plurality of appendages projecting into the slot from the opposing longitudinal sides of said slot and staggered with respect to each other, these appendages having the effect of retaining the yarn of the reserve turns which is wedged in the slot thus formed and which rides over said appendages.
- annular reserve channel creates a degree of difficulty in the unwinding of the reserve yarn, at the point when it is necessary to use this yarn, which can be damaged during the handling to which it is subjected at the time of extraction.
- the core according to the invention has, at least at one end—where turns of reserve yarn are to be formed—a cylindrical surface without an annular channel but with at least one slot extending circumferentially, in other words following the curvature of the surface, along said cylindrical surface.
- the slot or slots have a “wavy” configuration, into which penetrate the corresponding portions of the turns of reserve yarn which are retained therein. The extraction of the yarn is facilitated because the turns of reserve yarn are not impeded by the wall of the channel, while the retention of the turns is ensured by the “wavy” morphology of the slot or, preferably, slots.
- the sides of the slot or of each slot have a plurality of appendages projecting into the slot from the opposing longitudinal sides of said slot, these appendages being staggered with respect to each other.
- the appendage or appendages originating from one side of the slot have their ends spaced apart from the opposite side of the slot by a distance that is less than the projection of the appendage or appendages originating from said opposite side of the slot; thus the yarn is inserted into the slot with a moderate alternating deviation, in the form of a zigzag, which gives rise to the “waviness” of the yarn, until the yarn rides over said appendages.
- a wall of cylindrical configuration can be provided within each slot, and can extend from the inside toward the terminal annular edge of the core, or from said terminal edge toward the inside.
- Said wall can be annular or can be limited to the area where the slots are present.
- FIG. 1 shows a partial terminal view of a synthetic resin core support provided with the fixing system of the “wavy” slots type according to the invention
- FIG. 2 shows a local section through II-II of FIG. 1, highly enlarged
- FIG. 3 shows a view and partial section through the broken line III-III of FIG. 1;
- FIG. 4 shows, in a similar way to FIG. 3, a modified embodiment.
- the number 1 indicates the synthetic resin core, of which the number 3 indicates a cylindrical stepped wall at the end of the core, the turns F of reserve yarn being windable onto this wall 3 .
- the core is perforated with arrangements of any one of the types of perforation patterns with which a core can be made.
- the core can have its lower edge shaped in such a way that an overlying core can be fitted on and surround the wall 3 and can rest on the ridge 3 A. Said lower edge can also be made in such a way that turns of reserve yarn can be wound thereon.
- the cylindrical wall 3 there is provided, according to the invention, at least one slot 5 or preferably two or more slots, each of which extends in the circumferential direction of the cylindrical wall 3 over a distance that is limited but sufficient for the purposes stated below.
- the wall 3 can be provided with a plurality of slots 5 , as shown in FIG. 3, distributed regularly along the circumference.
- the slot 5 , or each slot 5 characteristically has a plurality of appendages 7 and 9 that project from the longitudinal sides of the slot 5 , toward the opposite side in each case; in the illustrated solution, two appendages 7 are provided along the lower side (as seen in FIG. 1) of the slot 5 , and a single central appendage 9 is provided, projecting from the upper side of said slot.
- the appendages 7 , 7 and 9 are staggered, so that the slot 5 is essentially wavy, owing to the presence of two appendages 7 and one intermediate and opposing appendage 9 .
- Each of the appendages projects from the longitudinal side of the slot 5 from which it originates, up to a distance from the opposite longitudinal side that is less than the projection of the appendage or appendages projecting from said opposite side; therefore, if the appendages 7 and 9 are assumed to be identical to each other, the end of each appendage lies beyond the median line X-X, which is equidistant from the two opposing longitudinal sides of said slot 5 ; the waviness of the aperture formed in the slot 5 by the presence of appendages such as the appendages 7 and 9 is therefore accentuated.
- the outer surfaces 7 A and 9 A of the appendages 7 and 9 are shaped so that they lead inward, thus providing—in the radial direction—a decreasing radial dimension of the corresponding appendage from the base of the appendage originating along the longitudinal side of the slot 5 up to the end.
- the appendages 7 can originate from points lying behind the ridge 3 A, and the appendage or appendages 9 can originate from points flush with or behind the wall 3 .
- the ends 5 A of the slot or of each slot 5 can be slightly rounded, as seen in particular in FIG. 3.
- each slot 5 must be sufficient to provide the retaining effect; it is therefore necessary to have at least one pair of opposing appendages, or preferably at least three appendages, such as those indicated by 7 and 9 in the drawing. There may be three or four slots 5 , each having a suitable length.
- the slot 5 may advantageously be shielded internally to prevent the passage through it of the pressurized liquid fed into a stack of cores for yarn treatment, for example in dyeing processes.
- This shielding can be achieved by providing, in the thickness of the core 11 , a cylindrical wall 11 A extending from the edge of the core toward the inside, at the position of each slot 5 and spaced apart from the slot and from its appendages 7 and 9 to a limited extent as a result of the presence of a gap 20 , in which the portions of the reserve yarn F are placed.
- a cylindrical wall 111 A is provided and extends from the inside to the edge, to form a gap 120 similar to the gap 20 .
Abstract
In the stepped cylindrical wall (3) for the reserve turns there are provided three slots (5), extending circumferentially and each having a plurality of appendages (7, 7, 9) that project with a profile leading into the slot from the opposite sides of the slot and are staggered with respect to each other, so that as the yarn F penetrates into the slot (5) it is derived in a wavy configuration by the appendages (7, 7, 9); thus an effect of retaining the reserve turns of yarn is achieved.
Description
- The present invention relates to a support or core onto which yarn is wound to form reels for use in subsequent processes (dyeing, warping, weaving or other processes), and which has an annular area at one end or at both ends of the support, for the winding of a number of turns of “reserve”, yarn which is available and intended for connection to the yarn on adjacent reels. For ensuring the positioning the turns of reserve yarn, a channel is provided to receive the reserve turns. In many cases, however, even with this arrangement, the reserve turns of yarn are rather unstable and become unwound easily, especially from the end of the reserve yarn, as a result of the handling to which the reels are subjected during the subsequent stages of processing. Arrangements are therefore made to retain the end of the reserve yarn, usually by fixing it manually in suitable notches or by other means.
- In PCT/IT00/00302 in the name of the present applicant, a means is provided for creating, in the aforesaid annular channel, at least one slot extending circumferentially and having outer profiles which lead into the slot, in order to automatically engage the reserve yarn, the yarn of the various turns of the reserve yarn thus being repeatedly wedged in the slot so that a retaining effect is obtained. At least two slots are provided along the channel for the reserve yarn. A wall can also be provided within the slot or within each of the slots if necessary, this wall being spaced apart from the aforesaid slot to create a gap. Said wall can extend from the terminal annular edge toward the inside of the core, or can extend from the inside until it lies alongside and within the terminal edge. The slot or each of the slots can have a wavy profile; usually, it can have a plurality of appendages projecting into the slot from the opposing longitudinal sides of said slot and staggered with respect to each other, these appendages having the effect of retaining the yarn of the reserve turns which is wedged in the slot thus formed and which rides over said appendages.
- The presence of the annular reserve channel creates a degree of difficulty in the unwinding of the reserve yarn, at the point when it is necessary to use this yarn, which can be damaged during the handling to which it is subjected at the time of extraction.
- It was unexpectedly realized that, when said slots are provided, an effect of retaining the reserve yarn turns is achieved even in the absence of the annular channel; and it was also unexpectedly discovered that the reserve yarn could be recovered easily in this way without any risk of damaging it at the time of unwinding.
- Therefore, the core according to the invention has, at least at one end—where turns of reserve yarn are to be formed—a cylindrical surface without an annular channel but with at least one slot extending circumferentially, in other words following the curvature of the surface, along said cylindrical surface. The slot or slots have a “wavy” configuration, into which penetrate the corresponding portions of the turns of reserve yarn which are retained therein. The extraction of the yarn is facilitated because the turns of reserve yarn are not impeded by the wall of the channel, while the retention of the turns is ensured by the “wavy” morphology of the slot or, preferably, slots.
- In order to provide the wavy configuration and the retaining effect, the sides of the slot or of each slot have a plurality of appendages projecting into the slot from the opposing longitudinal sides of said slot, these appendages being staggered with respect to each other.
- The appendage or appendages originating from one side of the slot have their ends spaced apart from the opposite side of the slot by a distance that is less than the projection of the appendage or appendages originating from said opposite side of the slot; thus the yarn is inserted into the slot with a moderate alternating deviation, in the form of a zigzag, which gives rise to the “waviness” of the yarn, until the yarn rides over said appendages.
- A wall of cylindrical configuration can be provided within each slot, and can extend from the inside toward the terminal annular edge of the core, or from said terminal edge toward the inside. Said wall can be annular or can be limited to the area where the slots are present.
- The drawing shows a non-restrictive practical embodiment of the invention. In the drawing,
- FIG. 1 shows a partial terminal view of a synthetic resin core support provided with the fixing system of the “wavy” slots type according to the invention;
- FIG. 2 shows a local section through II-II of FIG. 1, highly enlarged;
- FIG. 3 shows a view and partial section through the broken line III-III of FIG. 1; and
- FIG. 4 shows, in a similar way to FIG. 3, a modified embodiment.
- In FIGS.1 to 3, the number 1 indicates the synthetic resin core, of which the
number 3 indicates a cylindrical stepped wall at the end of the core, the turns F of reserve yarn being windable onto thiswall 3. Under theridge 3A delimiting the step, the core is perforated with arrangements of any one of the types of perforation patterns with which a core can be made. The core can have its lower edge shaped in such a way that an overlying core can be fitted on and surround thewall 3 and can rest on the ridge 3A. Said lower edge can also be made in such a way that turns of reserve yarn can be wound thereon. - In the
cylindrical wall 3 there is provided, according to the invention, at least oneslot 5 or preferably two or more slots, each of which extends in the circumferential direction of thecylindrical wall 3 over a distance that is limited but sufficient for the purposes stated below. Thewall 3 can be provided with a plurality ofslots 5, as shown in FIG. 3, distributed regularly along the circumference. Theslot 5, or eachslot 5, characteristically has a plurality ofappendages slot 5, toward the opposite side in each case; in the illustrated solution, twoappendages 7 are provided along the lower side (as seen in FIG. 1) of theslot 5, and a singlecentral appendage 9 is provided, projecting from the upper side of said slot. Theappendages slot 5 is essentially wavy, owing to the presence of twoappendages 7 and one intermediate andopposing appendage 9. Each of the appendages projects from the longitudinal side of theslot 5 from which it originates, up to a distance from the opposite longitudinal side that is less than the projection of the appendage or appendages projecting from said opposite side; therefore, if theappendages slot 5; the waviness of the aperture formed in theslot 5 by the presence of appendages such as theappendages outer surfaces appendages slot 5 up to the end. Theappendages 7 can originate from points lying behind theridge 3A, and the appendage orappendages 9 can originate from points flush with or behind thewall 3. Theends 5A of the slot or of eachslot 5 can be slightly rounded, as seen in particular in FIG. 3. - When the turns of the reserve yarn F are placed on the
wall 3, the parts of the yarn that are placed in the slot or in eachslot 5 penetrate between theappendages profile appendages end profiles 5A of theslot 5 and being possibly slightly diverted by theappendages 7 closest to theends 5A, and in all cases being located on the inner side of saidappendages - This configuration is repeated in all the
slots 5 formed in thewall 3, and thus the turns of yarn are retained to a sufficient degree to prevent the loss of the turns of reserve yarn, but in a sufficiently limited way to allow one or more turns or all the turns of yarn to be extracted easily from the inner sides of theappendages slot 5 must be sufficient to provide the retaining effect; it is therefore necessary to have at least one pair of opposing appendages, or preferably at least three appendages, such as those indicated by 7 and 9 in the drawing. There may be three or fourslots 5, each having a suitable length. - The
slot 5 may advantageously be shielded internally to prevent the passage through it of the pressurized liquid fed into a stack of cores for yarn treatment, for example in dyeing processes. This shielding can be achieved by providing, in the thickness of thecore 11, acylindrical wall 11A extending from the edge of the core toward the inside, at the position of eachslot 5 and spaced apart from the slot and from itsappendages gap 20, in which the portions of the reserve yarn F are placed. - In the variant in FIG. 4, a
cylindrical wall 111A is provided and extends from the inside to the edge, to form agap 120 similar to thegap 20.
Claims (6)
1. A synthetic resin core for the winding yarn into reels, with automatic retaining means for the turns of reserve yarn, characterized in that at least one of its ends, where turns of reserve yarn are to be formed, has a cylindrical surface (3) without an annular channel but with at least one slot (5) extending circumferentially along said cylindrical surface.
2. The core as claimed in claim 1 , characterized in that the slot or each slot (5) has a “wavy” configuration into which the corresponding portions of the turns of reserve yarn penetrate and are retained therein.
3. The core as claimed in claim 1 , characterized in that each slot (5) has a plurality of appendages (7, 9) that project into the slot from the opposite longitudinal sides of said slot (5) and are staggered with respect to each other.
4. The core as claimed in claim 1 , characterized in that the appendage or appendages extending from one side of the slot (5) have their ends spaced apart from the opposite side of the slot by a certain distance that is less than the projection of the appendage or appendages extending from said opposite side of the slot, so that the turns of reserve yarn are inserted into the slot with a slightly wavy configuration, until they ride over said appendages.
5. The core as claimed in claim 1 , characterized in that a wall (11A; 111A) of cylindrical configuration is present inside the slots (5), said wall possibly being annular.
6. A synthetic resin core for winding yarn into reels, with slots for automatically retaining the turns of reserve yarn; the whole as described above and as represented in the attached drawing.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001FI000089U ITFI20010089U1 (en) | 2001-10-19 | 2001-10-19 | A TUBE IN SYNTHETIC RESIN FOR THE WINDING OF SPOOLS IN ROCKS, WITH AUTOMATIC RETENTION SLITS FOR THE RESERVE WIRE SPOOLS |
ITFI01U000089 | 2001-10-19 | ||
PCT/IT2002/000656 WO2003033387A1 (en) | 2001-10-19 | 2002-10-15 | A synthetic resin core for winding yarn into reels, with slots for automatically retaining the turns of reserve yarn |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040238684A1 true US20040238684A1 (en) | 2004-12-02 |
Family
ID=11442194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/492,280 Abandoned US20040238684A1 (en) | 2001-10-19 | 2002-10-15 | Synthetic-resin core for winding yarn into reels with slots, for automatically retaining the turns of reserve yarn |
Country Status (3)
Country | Link |
---|---|
US (1) | US20040238684A1 (en) |
IT (1) | ITFI20010089U1 (en) |
WO (1) | WO2003033387A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11267672B1 (en) | 2020-09-02 | 2022-03-08 | Sonoco Development, Inc. | Yarn carrier tubes |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4050646A (en) * | 1975-12-05 | 1977-09-27 | Burchette Jr Robert L | Yarn carrier |
US4720986A (en) * | 1984-06-12 | 1988-01-26 | Maschinenfabrik Scharer Ag | Spool mounting apparatus and method of using the same |
US4880890A (en) * | 1987-05-29 | 1989-11-14 | Takeda Chemical Industries Ltd. | One-can thermosetting resin compositions and precoated metal |
US5328121A (en) * | 1992-06-03 | 1994-07-12 | Sonoco Products Company | Textile core having improved start-up groove |
US6032890A (en) * | 1996-09-23 | 2000-03-07 | Sonoco Development, Inc. | Stacking stable yarn carrier for package dyeing |
US6412728B1 (en) * | 2000-09-06 | 2002-07-02 | Nan Ya Plastics Corporation | Yarn reel having a V-shape gradually narrowed slot with reverse fish scale shape having a rough surface |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS265841B1 (en) * | 1987-09-01 | 1989-11-14 | Kubata Milan | Cylindrical body especially core |
IT220991Z2 (en) * | 1990-08-23 | 1993-12-21 | Mariplast Spa | TUBE FOR DYEING SPOOLS, WITH EXTREMITY SHAPES SUITABLE TO ALLOW IN THE COUPLING A CIRCULATION OF LIQUID BETWEEN THE COUPLED ENDS, TO ACT ON THE SPOOLS OF THE WIRE RESERVE |
IT248312Y1 (en) * | 1999-09-28 | 2003-01-28 | Mariplast Spa | PLASTIC TUBE, FOR THE FORMATION OF SPOOLS OF YARN DESTINED FOR DYEING TREATMENTS AND OTHER |
IT1314472B1 (en) * | 2000-01-26 | 2002-12-18 | Mariplast Spa | TUBE SUPPORT IN SYNTHETIC RESIN FOR WINDING OF YARNS IN ROCKS, WITH AN AUTOMATIC RETENTION VEHICLE FOR |
-
2001
- 2001-10-19 IT IT2001FI000089U patent/ITFI20010089U1/en unknown
-
2002
- 2002-10-15 US US10/492,280 patent/US20040238684A1/en not_active Abandoned
- 2002-10-15 WO PCT/IT2002/000656 patent/WO2003033387A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4050646A (en) * | 1975-12-05 | 1977-09-27 | Burchette Jr Robert L | Yarn carrier |
US4720986A (en) * | 1984-06-12 | 1988-01-26 | Maschinenfabrik Scharer Ag | Spool mounting apparatus and method of using the same |
US4880890A (en) * | 1987-05-29 | 1989-11-14 | Takeda Chemical Industries Ltd. | One-can thermosetting resin compositions and precoated metal |
US5328121A (en) * | 1992-06-03 | 1994-07-12 | Sonoco Products Company | Textile core having improved start-up groove |
US6032890A (en) * | 1996-09-23 | 2000-03-07 | Sonoco Development, Inc. | Stacking stable yarn carrier for package dyeing |
US6412728B1 (en) * | 2000-09-06 | 2002-07-02 | Nan Ya Plastics Corporation | Yarn reel having a V-shape gradually narrowed slot with reverse fish scale shape having a rough surface |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11267672B1 (en) | 2020-09-02 | 2022-03-08 | Sonoco Development, Inc. | Yarn carrier tubes |
US11814262B2 (en) | 2020-09-02 | 2023-11-14 | Sonoco Development, Inc. | Yarn carrier tubes |
Also Published As
Publication number | Publication date |
---|---|
ITFI20010089U1 (en) | 2003-04-19 |
WO2003033387A1 (en) | 2003-04-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MARIPLAST S.P.A., ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROMAGNOLI, TIZIANO;REEL/FRAME:015600/0984 Effective date: 20040330 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |