US20020092284A1 - Core for a spinning bobbin and method of producing the core - Google Patents
Core for a spinning bobbin and method of producing the core Download PDFInfo
- Publication number
- US20020092284A1 US20020092284A1 US09/948,006 US94800601A US2002092284A1 US 20020092284 A1 US20020092284 A1 US 20020092284A1 US 94800601 A US94800601 A US 94800601A US 2002092284 A1 US2002092284 A1 US 2002092284A1
- Authority
- US
- United States
- Prior art keywords
- core
- strip material
- another
- wound
- winding
- 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
-
- 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
- B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
-
- 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
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- 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
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
The invention relates to a core (10) for a spinning bobbin and for receiving a windable material. The core (10) consists of wound strip material (11). Adjacently lying portions of the strip material (11) overlap one another. Production is performed by winding on a winding mandrel (14).
Description
- The invention relates to a core for a spinning bobbin and for receiving a windable material and relates to a method of producing the core.
- Yarns, woven fabrics, threads or filaments and the like are wound onto spinning bobbins during production. The spinning bobbins have a solid core, around which the material to be wound is wound. The invention is concerned with the construction and production of a spinning bobbin core of this type.
- The object of the invention is to provide a spinning bobbin core which can be produced in a simple way.
- A core according to the invention for a spinning bobbin is obtained from the features of Patent Claim 1. Flat strip material in particular, for instance made of plastic, is wound in a suitable way and thus forms the core. The strip material, for instance a flat belt, is preferably wound spirally and/or helically. Construction from a strip material permits production which is simple and extremely flexible with regard to diameters and lengths.
- Adjacently lying portions of the strip material—the latter is also referred to as winding strip—are advantageously permanently joined to one another, for instance by welding or adhesive bonding. A spiral arrangement of the strip material and welding of the same results in extremely high strength, not inferior to that of a seamless tube.
- Adjacently lying portions of the strip material preferably overlap one another. This farther increases the strength and possibility of permanently joining the adjacently lying portions.
- In one embodiment of the invention, edges of the strip material lying opposite one another are made thinner than a central region of the same, the thinner edges of adjacently lying portions overlapping one another This makes it possible to form the core with a continuous thickness in spite of regions overlapping one another. Weight is also saved. A uniform thickness or wall thickness of the core is obtained in particular if the edges overlapping one another, taken together, have a thickness corresponding to the non-overlapping regions, for instance the central region.
- The strip material preferably has a flat, rectangular cross section. In particular, the edges are of a stepped form, to permit overlapping. Edge offsets or steps have a thickness which corresponds to half the thickness otherwise of the strip material. Different thicknesses in the region of the edges lying opposite one another are also conceivable. What is important is that the edges overlapping one another, taken together, have a thickness corresponding to the non-overlapping regions.
- The strip material is advantageously reinforced, for instance by embedded tension-bearing elements, in particular made of high strength fibres such as aramid or steel for example. The tension-bearing elements are also arranged in the region of the edges of the strip material, at least in the region of one of the edges lying opposite one another, so that when the edges are overlapped there are reinforcements over the entire length of the core. This is not obligatory, however.
- According to a further idea of the invention, the strip material is annularly wound. An endless ring is formed from an endless portion of the strip material by winding with only one lap. In this case, ends of the strip material abutting one another are joined to one another.
- A core with a longer dimension in the axial direction is formed by permanently joining a number of rings.
- The method according to the invention is obtained from the features of
Patent Claim 15, if appropriate in conjunction with the subsequent subclaims. - The strip material is advantageously continuously wound spirally and/or helically and thus forms the core extending in the direction of a winding axis.
- The strip material is preferably wound onto a winding mandrel, for instance onto a motor-driven winding mandrel. The core produced is hollow and can be pulled off the winding mandrel after completion.
- The strip material is advantageously supplied stationarily in a fixed position—in relation to the direction of the winding axis. In this case, a free end of the wound core continuously travels in the direction of the winding axis. If a winding mandrel of finite length is used, the free end “grows” over and beyond a free end of the winding mandrel.
- According to a development of the method according to the invention, portions of a defined length are severed from the free end of the wound core. If the winding rate remains the same, the length of the wound core is dependent on the time which has elapsed. In an automatic system, this makes programmed control possible in a simple way.
- A cutting device provided for severing the portion of a defined length travels in the direction of the winding axis during the severing operation or is taken along parallel to it. The travelling rate is preferably 50 mm/min and in this case corresponds to the increase in length of the core brought about by the strip material being supplied and wound. In this way, extremely exact and straight cuts can be made. Temporary coupling of the cutting device to the core is also possible, for instance by gripping elements which are released after a finished core has been cut off and, following a pushing-back movement, once again securely hold the newly growing core and travel along with it.
- Preferred exemplary embodiments of the invention are explained in more detail below with reference to the drawing, in which:
- FIG. 1 shows a wound core in side view,
- FIG. 2 shows the core according to FIG. 1 in cross section,
- FIG. 3 shows a core during production in side view,
- FIG. 4 shows a cross section through a winding strip with tension-bearing elements used for the production of the core,
- FIG. 5 shows a core comprising a single ring, the ends of which have not yet been joined to one another,
- FIG. 6 shows a pulled-apart representation of two rings on a mandrel for the forming of a core, and
- FIG. 7 shows a pulled-apart representation of two rings for the forming of a core.
- FIG. 1 shows a
core 10 for a spinning bobbin and for receiving a windable material, for instance a fibre or a woven fabric. A construction comprising a helically wound material can be easily seen. This is referred to in the present case asstrip material 11. - The
core 10 is of a hollow form similar to a tube, see FIG. 2. The inside diameter is, for example, 300 mm; the length of the core is, for example, 350 to 400 mm. - The strip material similar to a flat belt consists of thermoplastic material and is preferably produced by extrusion or in some other continuous process and may be reinforced. FIG. 4 shows tension-bearing
elements 12 which are embedded in thestrip material 11, extend in the direction of the strip material and preferably run parallel adjacent to one another at equal intervals. Wires, high-strength fibres and the like come into consideration as tension-bearing elements. - A device for producing a spinning bobbin core according to the invention is sketched in FIG. 3. The
strip material 11 is supplied by means of a stationary or fixed guidingunit 13 to a windingmandrel 14 and comes to bear against the latter. The windingmandrel 14 is mounted on ashaft 15, which is supported bysuitable bearings 16 for absorbing transverse forces and is driven in a way not shown. The guidingunit 13 is located directly ahead of the point where thestrip material 11 runs onto thewinding mandrel 14. - The guiding
unit 13 has the effect that thestrip material 11 is supplied to thewinding mandrel 14 not exactly transversely with respect to thewinding axis 17 but at a small angle. The angle is dependent on the width of thestrip material 11 and is chosen precisely such that portions of thestrip material 11 directly neighbouring one another come to lie adjacent to one another without intermediate spaces as a result of the winding operation on thewinding mandrel 14. In this case, the strip material is wound around the windingmandrel 14 helically or spirally in the manner of a screw thread. - The
wound package 19 produced in this way is continuously advanced by the suppliedstrip material 11 and may be of virtually any desired length. A core 10 with the desired length is expediently severed from thewound package 19 by anadjustable cutting device 18. The said wound package slides on the windingmandrel 14, so that afree end 20 travels in the direction of the windingaxis 17. - The winding
mandrel 14 may be provided with forward-driving devices (not shown), for example caterpillar take-offs, arranged in the direction of the windingaxis 17, in order to permit the described travelling movement of thewound package 19 on the windingmandrel 14. - The winding
mandrel 14 extends not quite up to the working area of the cuttingdevice 18 and has a constant cross section over its length. In an embodiment not shown, the cross section of the windingmandrel 14 narrows in the direction of the cuttingdevice 18. This prevents thewound package 19 from seizing on the windingmandrel 14 if thestrip material 11 shrinks. The windingmandrel 14 is preferably then formed in a slightly conical way. - The
cutting device 18 is taken along with the travellingfree end 20 during the cutting operation, in order to permit cuts precisely transversely with respect to the windingaxis 17. - After the cutting, the
free end 20 or the peripheral cut face of thewound package 19 and/or the corresponding cut face of the severedcore 10 are subjected to post-treatment. The aim is to seal and/or smooth the cut faces, in particular any reinforcements or tension-bearingelements 12 present. For this purpose, the cut faces are exposed to heat. Welding can preferably be performed as hot-plate welding, with hot air or as ultrasonic welding. - The
strip material 11 coming to lie on the windingmandrel 14, or the laps thereof neighbouring one another, are permanently joined to one another. For this purpose, in FIG. 3 awelding unit 21 is arranged approximately opposite the guidingunit 13. Lateral edges 22, 23 of thestrip material 11 are welded directly to one another or permanently joined to one another in some other way. This increases the strength of the core 10 produced. Releasable joining is advantageous if thestrip material 11 is to be reused, for instance for cores of different diameters and/or lengths. - It is preferred for the surface of the core10 to be of a planar form in the direction of the winding
axis 17. Nevertheless, the portions of thestrip material 11 neighbouring one another are to be joined well to one another. For this purpose, the cross section of the strip material 11 (FIG. 4) is formed in a special way. Theedges strip material 11 in acentral region 24, preferably in each case half as thick. This allows the lateral edges 22, 23 to overlap one another and nevertheless form a planar surface of thecore 10. - According to FIG. 4, the
strip material 11 has a flat, rectangular cross section with edge offsets 25, 26. These come to lie on one another in thewound core 10. The welding or joining by thewelding unit 21 takes place on thelateral edge 23 receiving thefollowing strip material 11, to be precise in a region in which the reduced thickness of thelateral edge 23 begins, in FIG. 4 on astep end face 27 facing the offset 26. An outer end face 28 angled away from the offset 25 comes to lie against the saidend face 27. - Instead of the stepped configuration shown in FIG. 4, the
strip material 11 may also have a cross section tapering to a point on each side. What is important is the suitability for a surface of thefinished core 10 that is as planar as possible, with preferably partial overlapping of thestrip material 11. - The already described reinforcement by the tension-bearing
elements 12 is preferably not arranged over the entire cross section of thestrip material 11. Rather, the tension-bearingelements 12 are present only in thecentral region 24 and in one of the twolateral edges lateral edge 23. As a result, this leads to thefinished core 10 having tension-bearing elements at equal intervals from one another over its entire length. To elevate the joins between the neighbouring laps of thestrip material 11, however, bothlateral edges elements 12. It is likewise possible for the lateral edges 22, 23 to be recessed to accommodate the tension-bearingelements 12. This may be appropriate in particular in the case of relatively thick tension-bearing elements in relation to the thickness of the lateral edges. - The strip material preferably has a width of 120 mm. Instead of a single flat belt, it may also be divided, so that a number of part-belts, for instance 3 part-belts, running adjacent to one another and each with a width of 40 nm, are used for the production of the
core 10. Then, the part-belts coming to lie adjacent to one another also have to be welded to one another on the windingmandrel 14. Production with part-belts prevents possible twisting and bulging of an undivided, relatively wide belt. - FIG. 5 shows a strip material curved or wound into a
ring 29. Free ends 30, 31 still have to be joined to one another, preferably by welding or adhesive bonding. In the simplest case, thering 29 forms thecore 10. Its extent in the axial direction is then dependent on the width of thestrip material 11 used, here preferably up to approximately 120 mm. - For forming longer cores, a number of
rings 29 are arranged adjacent to one another in the axial direction and are joined to one another in the region of peripheral end faces 32, 33. This also preferably takes place by welding or adhesive bonding. Particularly suitable welding methods are hot-plate welding and ultrasonic welding. - For the joining of two
rings mandrel 36, which may be motor-driven—by analogy with the representation in FIG. 3. A vertical alignment of themandrel 36 is advantageous. Thelower ring 35 then comes to lie on aperipheral shoulder 37 of the mandrel. - For joining the
rings centre axis 38. As soon as therings - FIG. 7 shows a modification in the formation of the peripheral end faces32, 33—approximately analogous to FIG. 4. The end faces are of a stepped form. The “receiving”
end face 32 has an innerperipheral shoulder 39 with a neighbouringinner face 40. Opposite this, the “entering”end face 33 is provided with an outerperipheral shoulder 41 and anouter face 42 offset inwards with respect to the said shoulder. With this formation, therings
Claims (23)
1. Core (10) for a spinning bobbin and for receiving a windable material, characterized by a construction from wound strip material (11).
2. Core according to claim 1 , characterized in that adjacently lying portions of the strip material (11) are permanently joined to one another.
3. Core according to claim 1 , characterized in that adjacently lying portions of the strip material (11) at least partially overlap one another.
4. Core according to claim 2 , characterized in that edges (22, 23) of the strip material (11) lying opposite one another form the portions lying opposite one another.
5. Core according to claim 4 , characterized in that the edges (22, 23) of the strip material (11) lying opposite one another are made thinner than a central region (24) of the same and in that the thinner edges (22, 23) at least partially overlap one another.
6. Core according to claim 1 , characterized in that the strip material (11) has a flat, rectangular cross section.
7. Core according to claim 1 , characterized in that the strip material (11) is reinforced.
8. Core according to claim 1 , characterized in that the strip material (11) consists of least partially of plastic.
9. Core according to claim 1 , characterized in that the strip material (11) is helically wound.
10. Core according to claim 1 , characterized in that the strip material (11) is annularly wound.
11. Core according to claim 1 , characterized in that a number of rings (34, 35) of strip material (11) are joined to one another, lying axially adjacent to one another, for the forming of the core (10).
12. Core according to claim 11 , characterized in that neighbouring rings (34, 35) have peripheral end faces (32, 33) positively engaging in one another and regions of the end face (32) of one ring (34, 35) bear against regions of the end face (33) of the neighbouring ring (34, 35).
13. Core according to claim 12 , characterized in that the end faces (32, 33) are peripherally profiled.
14. Core according to claim 12 , characterized in that the end faces (32, 33) are peripherally stepped.
15. Method of producing a core (10) for a spinning bobbin, characterized in that the core (10) is produced by the winding method, a flat strip material (11) being wound and thus forming the core (10) extending in the direction of a winding axis (17).
16. Method according to claim 15 , characterized in that the strip material (11) is wound onto a winding mandrel (14).
17. Method according to claim 15 , characterized in that the strip material (11) is supplied for winding in a position fixed in relation to the direction of a winding axis (17) and in that a free end (20) of the wound core (10) travels in the direction of the winding axis (17).
18. Method according to claim 17 , characterized in that a cutting device (18) for severing at least portions of a defined length of the core (10) travels in the direction of the winding axis (17) during the severing operation.
19. Method according to claim 15 , characterized in that portions of a defined length are severed from a free end of a wound package (19) produced by the winding for the forming of at least part of the desired core (10).
20. Method according to claim 18 , characterized in that cut faces produced by the severing of portions from a wound package (19) are smoothed.
21. Method according to claim 15 , characterized in that the strip material (11) is wound with at least partial overlapping of neighbouring portions.
22. Method according to claim 21 , characterized in that the strip material (11) is permanently joined in the region of the overlapping.
23. Method according to claim 15 , characterized in that a number of rings (34, 35) of wound strip material (11) are joined to one another, lying adjacent to one another in the axial direction, for the forming of the core (10).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10045945.5 | 2000-09-16 | ||
DE10045945A DE10045945A1 (en) | 2000-09-16 | 2000-09-16 | Core for a spinning bobbin and method for manufacturing the core |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020092284A1 true US20020092284A1 (en) | 2002-07-18 |
Family
ID=7656515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/948,006 Abandoned US20020092284A1 (en) | 2000-09-16 | 2001-09-06 | Core for a spinning bobbin and method of producing the core |
Country Status (4)
Country | Link |
---|---|
US (1) | US20020092284A1 (en) |
EP (1) | EP1188704A1 (en) |
DE (1) | DE10045945A1 (en) |
MX (1) | MXPA01009242A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007117766A2 (en) * | 2006-04-05 | 2007-10-18 | Sonoco Development, Inc. | Cores for pressure-sensitive adhesive tape, and methods for making same |
CN111989168A (en) * | 2018-03-02 | 2020-11-24 | 索诺科开发公司 | Core with improved chuck interaction |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110395009B (en) * | 2019-08-01 | 2020-09-29 | 河海大学常州校区 | Ultrasonic pipe coiling machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE145544C (en) * | ||||
BE527455A (en) * | ||||
FR1294371A (en) * | 1960-05-17 | 1962-05-26 | Decorated Metal Mfg Company | Spool for the textile industry |
CH436952A (en) * | 1965-07-06 | 1967-05-31 | Sonoco Products Co | Spirally wound paper tube |
US3952963A (en) * | 1974-10-04 | 1976-04-27 | Mitsui Toatsu Chemicals, Incorporated | Cylindrical winding core for carrying a roll of elongated windable material |
EP0710617B1 (en) * | 1994-11-02 | 1998-06-17 | Feramatic AG | Hollow cylinder with variable length |
DE29609856U1 (en) * | 1996-06-04 | 1996-08-22 | Guschky & Toennesmann Gmbh | Device for the production of sleeve bodies and sleeve body |
-
2000
- 2000-09-16 DE DE10045945A patent/DE10045945A1/en not_active Withdrawn
-
2001
- 2001-08-21 EP EP01120065A patent/EP1188704A1/en not_active Withdrawn
- 2001-09-06 US US09/948,006 patent/US20020092284A1/en not_active Abandoned
- 2001-09-13 MX MXPA01009242A patent/MXPA01009242A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007117766A2 (en) * | 2006-04-05 | 2007-10-18 | Sonoco Development, Inc. | Cores for pressure-sensitive adhesive tape, and methods for making same |
WO2007117766A3 (en) * | 2006-04-05 | 2008-01-03 | Sonoco Dev Inc | Cores for pressure-sensitive adhesive tape, and methods for making same |
CN111989168A (en) * | 2018-03-02 | 2020-11-24 | 索诺科开发公司 | Core with improved chuck interaction |
US11279077B2 (en) * | 2018-03-02 | 2022-03-22 | Sonoco Development, Inc. | Core with improved chuck interaction |
US11787103B2 (en) | 2018-03-02 | 2023-10-17 | Sonoco Development, Inc. | Core with improved chuck interaction |
Also Published As
Publication number | Publication date |
---|---|
EP1188704A1 (en) | 2002-03-20 |
DE10045945A1 (en) | 2002-03-28 |
MXPA01009242A (en) | 2003-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NORDDEUTSCHE SEEKABELWERKE GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BASSE, HARTWIG;BITTNER, HANS-JOACHIM;REEL/FRAME:012511/0949 Effective date: 20010910 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |