CN1865110A - Yarn brake device for spinning machine weft feeding device - Google Patents
Yarn brake device for spinning machine weft feeding device Download PDFInfo
- Publication number
- CN1865110A CN1865110A CN 200610074859 CN200610074859A CN1865110A CN 1865110 A CN1865110 A CN 1865110A CN 200610074859 CN200610074859 CN 200610074859 CN 200610074859 A CN200610074859 A CN 200610074859A CN 1865110 A CN1865110 A CN 1865110A
- Authority
- CN
- China
- Prior art keywords
- edge
- drum
- yarn
- brake component
- slit
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title description 3
- 239000004753 textile Substances 0.000 claims abstract description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002650 laminated plastic Substances 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/364—Yarn braking means acting on the drum
- D03D47/366—Conical
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A weft feeder is provided with a weft-storing drum (12) having a delivery edge (12a) from which the yarn (F) is unwound to be fed to a textile machine. A yarn-braking device comprises a frustoconical, hollow braking member (32) supported with its larger base facing the drum and coaxially biased with its inner surface against the delivery edge (12a) of the drum. The edge (26a) of the larger base of the braking member (26) is lined with a protection ring (32) having an inner, circumferential slot (34) formed in the direction of the generatrices of the cone in which the edge of the larger base (26a) is received.
Description
Technical field
The present invention relates to a kind of thread brake that is used for spinning machine weft feeding device.
Background technology
As is known, the weft feeding device that is used for textile machine comprises a fixing drum, this fixedly on the drum a motor-driven pivot arm be wound with the loopy yarn circle, form the weft yarn deposit.In case the loom requirement, with the unwinding from the drum of yarn circle, the tension force by the control yarn is so that the brake equipment that tension force substantially constant ground is imported then, and is fed to loom at last.
In the weft feeding device of the above-mentioned type, brake component generally includes hollow member in the form of a truncated cone, supported this component coaxial, make its bigger base surface to drum, and setovered, make the end of interior surface thereof against drum, the yarn circle is from this end unwinding, and this class weft feeding device can be learnt from the patent application such as IT1251209 and IT1259567 formerly.The yarn of unwinding is advanced between drum and Frusto-conical member, and this just applies required braking on yarn.
In order to improve the homogeneity of braking maneuver, and it is relevant with yarn with different thicknesses, but frustoconical member is made by a kind of material of finite deformation, such as a kind of fabric or the laminated plastics that are impregnated with polymer resin, thereby the yarn in advancing can make its distortion, thereby makes the pressure that acts on the drum keep substantially constant.
The yarn that rotates along with unwinding on the drum is outwards outstanding by action of centrifugal force, is shaped as the swivel that is commonly called " air ring ", and as is known, this will cause, and yarn is tangled, knotting etc.In order to overcome this shortcoming,, maintain yarn to overcome centnifugal force from the gas-tight ball that directly centers on drum in the upstream of frustoconical member being set such as being known as drum the patent applications formerly such as IT1311244 and IT1319948.
Yet the unwinding yarn that stands centnifugal force enters in the circular clearance between gas-tight ball and the big base portion of frustoconical member easily.This situation makes outwards outstanding yarn slide against the edge of the big base portion of brake component, thereby brake component is worn and torn gradually, and the correct running of brake component also is affected thus.
Also there is impaired danger at the edge of the big base portion of frustoconical member when by hand brake component being installed.In fact, such work is to utilize the instrument with hook shaped ends manually to carry out, and this instrument can be wrapped with the edge of frustoconical member, thus the scraping frustoconical member.
Summary of the invention
Therefore; a main purpose of the present invention is not to be damaged by the main edge of protecting the conical butt brake component to improve above-mentioned thread brake; do not influence simultaneously the deformability of frustoconical member again, and that this ability provides even braking maneuver is necessary.
Tangible more above purpose and other advantage of will becoming below can reach by the thread brake with the described feature of claim 1, and other claim has been set forth other favorable characteristics of the present invention simultaneously.
Description of drawings
To describe the present invention in detail in conjunction with a preferred non-exclusive embodiment now, these embodiment illustrate with the example of indefiniteness in the accompanying drawings, in the accompanying drawings:
Fig. 1 is the lateral plan that is provided with according to the weft feeding device of improved thread brake of the present invention;
Fig. 2 amplifies a details that shows Fig. 1.
The specific embodiment
Referring to above-mentioned accompanying drawing, the weft feeding device 10 that is used for textile machine comprises that fixing weft yarn stores drum 12, on this drum, lays in RT by the pivot arm 14 coiling loopy yarn circles that electrical motor 15 drives to form weft yarn.The transmission edge of drum 12 is the oblique angle at the 12a place.When the loom (not shown) requires, yarn F unwinding from the drum 12, and by thread-carrier 16, this thread-carrier is coaxial in drum 12 supportings by rest arm 17, and rest arm is outstanding along the direction that is parallel to the drum axis from motor field frame.
In a kind of known method, brake assemblies 18 comprises ring-shaped bearing piece 20, and this supporting member is by supporting with drum 12 coaxial line ground at the sliding part 22 that the control lower edge of worm mechanism (not shown) rest arm 17 is slided, and this worm screw can be by knob 24 operations.Conical butt hollow member 26 is bearing in the center of ring-shaped bearing piece 20 by the spoke formula assembly (just schematically illustrated in the drawings) of spring 28, these springs are fixed in supporting member 20 with an end separately, and the other end is fixed in the less base portion of frustoconical member 26.Frustoconical member is arranged to its bigger base surface to drum, and is subjected to fexible bias pressure, makes its inside face against sloping edge 12a.
In a kind of known way, yarn F advances between the sloping edge 12a of drum 12 and frustoconical member 26, and this member has applied required braking maneuver on yarn.Act on quiet contact pressure on the drum by operation knob 24 scalable by frustoconical member.
According to the present invention, frustoconical member 26 studs with protection ring 32 than the edge 26a of big base, and this protection ring has internal circumferential slit 34, and this slit stretches out along bevelled generatrix direction, receiving edges 26a.
As being shown specifically among Fig. 2, in the zone that is lined with anti-wear paillon foil 29, the height H of slit 34 is slightly larger than the thickness S of frustoconical member 26.Thus, frustoconical member is 32 not firm because of encircling, so frustoconical member can be as required by the yarn F free bend in advancing, and is substantially all even constant with the pressure that keeps acting on the drum.
At work; when yarn F outwards gives prominence to because of centnifugal force as shown in Figure 2; enter in the circular clearance between the big base portion that is formed on gas-tight ball and frustoconical member the edge 26a of protection ring 32 protection frustoconical member and the wearing and tearing that anti-wear liner 29 is avoided yarn F thereof.As mentioned above, because edge 26a freely is contained in the slit of protection ring, frustoconical member can be freely crooked by the yarn in advancing, and this situation makes braking maneuver even.
Claims (5)
1. one kind is used to be provided with the thread brake that a weft yarn is stored the weft feeding device of drum (12); this drum has a delivery edge (12a); yarn (F) is fed to a textile machine after the unwinding from this edge; this thread brake comprises that one is Frusto-conical hollow brake component (26) substantially; this brake component is supported and make its big base surface store drum to weft yarn; and with the drum coaxial line be subjected to bias voltage and the inside face that makes it against described delivery edge (12a); it is characterized in that; substantially stud with a protection ring (32) for the edge than big base (26a) of Frusto-conical brake component (26); this protection ring has an internal circumferential slit (34) that forms along the generatrix direction of the formed circular cone of brake component, and described edge (26a) is contained in this slit.
2. device as claimed in claim 1 is characterized in that, the height (H) of described internal circumferential slit (34) is slightly larger than the thickness (S) of brake component (26).
3. device as claimed in claim 1 or 2 is characterized in that, described protection ring (32) is made by a kind of elastomeric material.
4. device as claimed in claim 3 is characterized in that, described elastomeric material is a polyurethane.
5. as any described device in the claim 1 to 4, it is characterized in that, described slit (34) is formed between two parallel peripheral flange (32a, 32b), these two flanges engage with the opposite sides of edge (26a) respectively, and, the outstanding inward flange (32b) that surpasses of outward flange (32a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2005U000063 | 2005-05-18 | ||
| ITTO20050063 ITTO20050063U1 (en) | 2005-05-18 | 2005-05-18 | REFINEMENT TO A YARN BRAKING DEVICE IN WEFT FEEDERS FOR TEXTILE MACHINES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865110A true CN1865110A (en) | 2006-11-22 |
| CN1865110B CN1865110B (en) | 2011-09-07 |
Family
ID=36754077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610074859 Expired - Fee Related CN1865110B (en) | 2005-05-18 | 2006-04-21 | Yarn brake device for spinning machine weft feeding device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1724384B1 (en) |
| CN (1) | CN1865110B (en) |
| DE (1) | DE602006001031T2 (en) |
| IT (1) | ITTO20050063U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243460A (en) * | 2012-02-02 | 2013-08-14 | Iro有限公司 | Yarn feeder and yarn brake |
| CN108728994A (en) * | 2017-04-20 | 2018-11-02 | 爱吉尔电子股份公司 | Weft thread brake equipment for storing yarn fournisseur and the fournisseur using the equipment |
| CN112609299A (en) * | 2020-12-10 | 2021-04-06 | 海宁市骄阳旗材有限公司 | Textile weft storing device capable of avoiding weft breakage or weft leakage at weft storing device during operation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3112899A (en) * | 1961-07-21 | 1963-12-03 | Essex Wire Corp | Wire-unwinding device |
| IT1251209B (en) * | 1991-09-20 | 1995-05-04 | Lgl Electronics Spa | SELF-REGULATING YARN BRAKING DEVICE FOR WEFT FEEDERS. |
| IT1263623B (en) * | 1993-02-23 | 1996-08-27 | Roj Electrotex Nuova Srl | WIRE FEEDER |
| DE9406102U1 (en) * | 1994-04-13 | 1995-08-10 | Sobrevin | Thread store with thread take-off brake |
| IT1295624B1 (en) * | 1997-10-15 | 1999-05-24 | Roj Electrotex Nuova Srl | BRAKING DEVICE FOR YARN IN WEFT FEEDERS AND BRAKING ELEMENT FOR SAID DEVICE |
-
2005
- 2005-05-18 IT ITTO20050063 patent/ITTO20050063U1/en unknown
-
2006
- 2006-03-21 DE DE200660001031 patent/DE602006001031T2/en active Active
- 2006-03-21 EP EP20060005694 patent/EP1724384B1/en not_active Not-in-force
- 2006-04-21 CN CN 200610074859 patent/CN1865110B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243460A (en) * | 2012-02-02 | 2013-08-14 | Iro有限公司 | Yarn feeder and yarn brake |
| CN103243460B (en) * | 2012-02-02 | 2015-04-01 | Iro有限公司 | Yarn feeder and yarn brake |
| CN108728994A (en) * | 2017-04-20 | 2018-11-02 | 爱吉尔电子股份公司 | Weft thread brake equipment for storing yarn fournisseur and the fournisseur using the equipment |
| CN112609299A (en) * | 2020-12-10 | 2021-04-06 | 海宁市骄阳旗材有限公司 | Textile weft storing device capable of avoiding weft breakage or weft leakage at weft storing device during operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1865110B (en) | 2011-09-07 |
| DE602006001031T2 (en) | 2008-08-14 |
| DE602006001031D1 (en) | 2008-06-12 |
| EP1724384B1 (en) | 2008-04-30 |
| ITTO20050063U1 (en) | 2006-11-19 |
| EP1724384A1 (en) | 2006-11-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |