CN103015005B - By transporting yarn gripper and drawing the yarn gripper pair for loom that yarn gripper is constituted - Google Patents
By transporting yarn gripper and drawing the yarn gripper pair for loom that yarn gripper is constituted Download PDFInfo
- Publication number
- CN103015005B CN103015005B CN201210353753.1A CN201210353753A CN103015005B CN 103015005 B CN103015005 B CN 103015005B CN 201210353753 A CN201210353753 A CN 201210353753A CN 103015005 B CN103015005 B CN 103015005B
- Authority
- CN
- China
- Prior art keywords
- yarn gripper
- yarn
- pair
- gripper
- wedge
- 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.)
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Links
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/233—Carrying grippers
-
- 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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/236—Drawing grippers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
By transporting yarn gripper and drawing the yarn gripper pair for loom that yarn gripper is constituted, the body wherein transporting yarn gripper is processed by common drag scraper by one section of extrusion molding metal forming part (1) and is formed.On at least some of outer surface of yarn gripper, at the end of all machine operations, applying thickness is the densification of 20 30 microns and hard thin ceramic material surfaces coating.
Description
Technical field
The present invention relates to for loom by the transport yarn gripper improved respectively and traction yarn gripper structure
The yarn gripper pair become.Specifically, the present invention relates to a pair yarn gripper, this to yarn gripper with
Warp thread has the safety of higher degree in interference relation aspect and has the longer use longevity
Life.
Background technology
It is known that in Modern High-Speed loom, by the yarn clipping in weft to warp thread shed open
The path of device shows as the interference of yarn gripper upper frequency lasting with warp thread.It practice, on the one hand
In order to reduce the stress on warp thread, the extent of opening of shed open trends towards less；On the other hand, by
Persistently increase in loom speed, need the startup time advance closed by shed open to wherein yarn gripper
The moment being still located in shed open.Warp thread is the most inevitable with the interference on yarn gripper surface.
This interference means there will be the problem of two aspects, is on the one hand the integrity of warp thread
Problem, warp thread may keep being wrapped on yarn gripper and the therefore quilt due to the motion of yarn gripper
Cutting or deviation, thus cause loom shut down or woven defect occurs；Problem on the other hand
It is, the yarn gripper abrasion caused along with possible fine cracks and the formation of groove.In yarn clipping
On the surface contacted with warp thread of device, the existence of these microdefects can increase warp thread certainly by yarn clipping
The frequency of the situation that device blocks, and it has been additionally formed the dangerous trigger point of fatigue failure, from
And the service life of these yarn grippers is the most unsatisfactory.
Summary of the invention
Therefore, it is an object of the invention to, propose a kind of for loom, by transport yarn gripper
The special construction of yarn gripper pair constituted with traction yarn gripper, its can overcome disadvantages mentioned above and
Therefore, it is possible to frequency that warp thread by yarn gripper blocked is greatly lowered, and additionally significantly improve
Its service life.
It is an object of the invention to by have those in claim 1 described features by transporting
Send the yarn gripper that yarn gripper and traction yarn gripper are constituted to realizing.Dependent claims discloses
Other preferred feature of the present invention.
Accompanying drawing explanation
Under any circumstance only can be given in the way of non-limiting embodiments and attached from following
The detailed description of the preferred embodiment of the invention shown in figure is clearly understood the present invention
The further feature of yarn gripper pair and advantage, wherein:
Figure 1A is the perspective of the extrusion transporting yarn gripper body for forming the present invention
Figure；
Figure 1B is the amplification view of the extrusion of Fig. 1；
Fig. 2 A is the perspective view transporting yarn gripper of the present invention on reed side；
Fig. 2 B is the saturating of the transport yarn gripper of the present invention on the side contrary with the side of Fig. 2 A
View；
Fig. 3 A is the side view of the traction yarn gripper of the present invention, and wherein weft clamping device is in
In closed position；
Fig. 3 B is the anterior enlarged drawing of yarn gripper shown in figure 3 a, wherein weft yarn clamping
During device is in an open position.
Detailed description of the invention
According to the principal character of the present invention, transport the body of yarn gripper by one section of metal forming part 1
(extrusion being preferably made up of alloy in lightweight) removes machining by simple scraping
Operation is formed.The shape of this extrusion appears clearly from figs. 1 a and 1b, and
Its central body has generally D-shaped hollow section 1, base component 2, middle frame (middle
Shelf) 3 and upper cover cap portion 4 stretch out from described central body.D-section 1, at finished product clamp
Yarn device corresponds to the sweep (right side in fig. ib) of the side towards reed with continuous print
Mode is bent towards lid cap portion 4 and is separated with base component by deep guiding groove 5.Middle frame 3
Stretch out along crisscross relative to the straight part (left side in fig. ib) of D-section,
Described middle frame is as the tightening member controlling band in finished product yarn gripper for yarn gripper.Block
Shape portion 4 compares middle frame 3 and laterally extends out farther, and as being fastened on yarn gripper inside portion
The protection element of the weft clamping device G in Fen, as in fig. 2b it is apparent that as.
This special tectonic system of yarn gripper is capable of such yarn gripper, in described yarn clipping
In device, central body is made up of the single piece with the high rigidity of structure, and does not has prior art
Any channel effect of being generally of due to the connecting portion between different elements of yarn gripper.
Therefore yarn gripper shows the fatigue durability of enhancing, high reliability and shape repeatability, it is thus possible to
Enough completely dispense with adjustment and correct operation that weaving personnel are generally carried out when yarn gripper is changed.
And, the most of outer surface trending towards contacting with warp yarn friction of yarn gripper is by being extruded into
The extrusion molding surface of type part is constituted, and therefore itself has had certain smoothness, and this need not
Carry out further machine operations.
Owing to extrusion 1 has included be necessary yarn gripper element, so being used for obtaining
The scraping obtaining finished product transport yarn gripper removes machine operations very simple and fast, in incision tract
In be also such, thus the transport yarn gripper of the present invention provide not only high-tech performance, and
Its low cost of manufacture.
As in Figures 2 A and 2 B it can be seen that the machine operations of extrusion 1 is so carried out,
So that the transport yarn gripper P of the present invention make its most advanced and sophisticated (tip) towards reed side (
Front side in Fig. 2 A) upper alignment, in order to stay broad space to accommodate weft yarn in yarn gripper
Clamping device G, these devices are complete for interfering with any possibility of warp thread as mentioned above
Entirely protected by lid cap portion 4.
The traction yarn gripper T of the present invention demonstrates in figures 3 a and 3b, and is as described below
Type: wherein so that clamped parallel is free, wedge-like tip C is under the control of rod member L
Overcome spring M to carry out the first lengthwise movement according to the arrow F, and carry out the second friendship according to arrow H
Fork motion, this can very rapidly realize wider between wedge-like tip C and hook component B
Opening.
Make this wedge-like tip carrying out opening according to two vertical movements known in the art
, but in known device, the second motion realizes also by rod member and spring system.This
Cause system the most complicated and huge, thus result in the traction yarn gripper of needs
Volume is bigger, and additionally this system there will be unexpected blocking.
According to the present invention, except for the difference that, by using permanent magnet 6 to realize the lateral of wedge-like tip
Displacement, this permanent magnet is embedded in the body of traction yarn gripper and the most described control bar passes through
Self have been extricated from being formed at the opposite side of hook portion (G) along the lengthwise movement of arrow F
On relative wedge-shaped part 8 then can apply captivation on the control bar 7 of wedge-like tip C.Real
On border, relative wedge-shaped part 8 prevents control bar to decline too early and therefore prevents from controlling bar 7 and forever
Between magnet 6, premature contact occurring, until controlling the end of the longitudinal stroke of bar 7, therefore avoiding
Control bar 7 occurs any friction on permanent magnet 6, and this friction can damage its use time.
The most advanced and sophisticated this structural volume controlling device of wedge-like is the least, thus with known yarn clipping
Device is compared, and yarn gripper of the present invention can have thin many structure designs, and the most even exists
Shed open also is able to when closing in advance leave shed open in the case of not interfering with warp thread.
Size in view of yarn gripper is the least and to constitute its various piece relatively thin, so this
The traction yarn gripper of invention is preferably made of steel.
Finally, according to another key character of the present invention, transport and draw yarn gripper altogether
With, the outer surface of yarn gripper is by being referred to as the technology of PEO (plasma electrolysis oxidation)
Carrying out being electrolysed coating processing and having the thinnest ceramic material surfaces layer, this technology can give folder
Yarn device surface accurately coats and is closely adhered on densification on base material, that thickness is the least
And adamantine ceramic material layer, described thickness is such as preferably 20-30 micron.
As predictable, this ceramic layer on surface is effectively increased the service life of yarn gripper,
Prevent following metal material that the abrasion caused by warp yarn friction occurs.Due to described ceramic layer
Thickness the least, so the functional character of yarn gripper will not be changed by any way, also will not
Change the mechanical detail of yarn gripper, thus this process can be as finally processing at all machineries
Carry out at the end of finishing operations.
Although it addition, this ceramic layer indirectly but achieves in complete surprising mode
Being greatly reduced of the fatigue failure of yarn gripper, this is because eliminate or greatly reduce micro-
Crackle and the formation of very low power, these are all the trigger points of this fatigue failure.Therefore this is significantly
Extend the service life of yarn gripper of the present invention.
It is understood however that above-mentioned concrete layout need not be confined to by it is considered herein that, on
State concrete layout and show only its exemplary, those of ordinary skill in the art's
In cognitive range in the case of without departing from by scope claimed below
Can there be many modification.
Claims (10)
1. by transporting yarn gripper (P) and drawing the yarn clipping for loom that yarn gripper (T) is constituted
Device pair, it is characterised in that the body of described transport yarn gripper by one section be machined be extruded into
Type part (1) and formed, described extrusion has central body, during this central body has
Empty cross section, the yarn gripper element being necessary stretches out from this hollow section.
2. yarn gripper pair as claimed in claim 1, wherein said hollow section has substantially D
Tee section, the yarn gripper element of described necessity include base component (2), middle frame (3) and
Upper cap hat shape element (4).
3. yarn gripper pair as claimed in claim 2, wherein said extrusion (1)
The sweep of D-section is towards described block linear element (4) continuous bend and by deeply drawing
Guide groove (5) separates with described base component (2).
4. yarn gripper pair as claimed in claim 2, wherein said middle frame (3) is from described
The straight part of the D-section of extrusion (1) is stretched out along horizontal direction, in the middle of this
The tightening member that frame carries as the control of yarn gripper in final yarn gripper.
5. yarn gripper pair as claimed in claim 2, wherein said transport yarn gripper also includes latitude
Yarn clamping device (G), described weft clamping device is fastened on the inside of described transport yarn gripper
In part, and wherein said block linear element (4) is horizontal compared to described middle frame (3) edge
To extending out farther, and as the protection element of described weft clamping device (G).
6. the yarn gripper pair as according to any one of foregoing Claims, wherein said traction yarn clipping
Device is to include the type for the wedge-like most advanced and sophisticated (C) clamped by weft yarn against hook component (B),
Described wedge-like tip can carry out the first lengthwise movement and transverse to described first lengthwise movement the
Two motions, to quickly form between described wedge-like most advanced and sophisticated (C) and described hook component (B)
Wide opening, wherein, described second motion is realized by permanent magnet (6), this permanent magnetism
Body is combined in the body of described yarn gripper and is suitable to the control at described wedge-like most advanced and sophisticated (C)
Bar applies captivation on (7).
7. yarn gripper pair as claimed in claim 6, wherein said hook component (B) is in institute
State and on the opposite side of hook component (B), be additionally provided with relative wedge-shaped part (8), described relative
Wedge-shaped part (8) is used for preventing before described first lengthwise movement terminates described control bar (7)
And contact occurs between described permanent magnet (6).
8. the yarn gripper pair as according to any one of claim 1-5, wherein in these yarn clippings
In at least one part of the outer surface of device, it is applied with by fine and close and hard thin ceramic material
The face coat that layer is constituted.
9. yarn gripper pair as claimed in claim 8, wherein said ceramic material layer presss from both sides at these
It is formed on yarn gripper after all machining process of yarn device.
10. yarn gripper pair as claimed in claim 9, the thickness of wherein said ceramic material layer
For 20-30 micron.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2011A001710 | 2011-09-22 | ||
| IT001710A ITMI20111710A1 (en) | 2011-09-22 | 2011-09-22 | PAIR OF PLIERS, CARRIER AND TRAENTE, PERFECT FOR TEXTILE FRAME. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015005A CN103015005A (en) | 2013-04-03 |
| CN103015005B true CN103015005B (en) | 2016-08-03 |
Family
ID=44993691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210353753.1A Active CN103015005B (en) | 2011-09-22 | 2012-09-21 | By transporting yarn gripper and drawing the yarn gripper pair for loom that yarn gripper is constituted |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2573241B9 (en) |
| CN (1) | CN103015005B (en) |
| IT (1) | ITMI20111710A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4259997A (en) * | 1979-11-07 | 1981-04-07 | Rockwell International Corporation | Weft carrier |
| CN1168428A (en) * | 1996-02-27 | 1997-12-24 | 新齿轮股份公司 | Improved giver gripper for gripper loom |
| CN2332737Y (en) * | 1998-02-09 | 1999-08-11 | 李渭瀛 | Entry and exit gripper head of rapier loom |
| CN1257947A (en) * | 1998-12-23 | 2000-06-28 | 索梅特纺织机械股份公司 | Paired weft yarn feeding and draw-off gripper for loom |
| CN1480574A (en) * | 2002-08-30 | 2004-03-10 | �����꼼���ɷݹ�˾ | Weft conveying yarn gripper for loom and improved pathfinder thereof |
| CN1570237A (en) * | 2003-04-10 | 2005-01-26 | 普洛玛技术股份公司 | Improved-operation compact gripper for weaving looms |
| DE102005014107A1 (en) * | 2005-03-22 | 2006-09-28 | Picanol N.V. | Receiving gripper with a hook-shaped insert and method for producing the hook-shaped insert |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002173851A (en) * | 2000-12-08 | 2002-06-21 | Tsudakoma Corp | Rapier head for rapier ro weft inserting |
-
2011
- 2011-09-22 IT IT001710A patent/ITMI20111710A1/en unknown
-
2012
- 2012-09-07 EP EP20120183579 patent/EP2573241B9/en active Active
- 2012-09-21 CN CN201210353753.1A patent/CN103015005B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4259997A (en) * | 1979-11-07 | 1981-04-07 | Rockwell International Corporation | Weft carrier |
| CN1168428A (en) * | 1996-02-27 | 1997-12-24 | 新齿轮股份公司 | Improved giver gripper for gripper loom |
| CN2332737Y (en) * | 1998-02-09 | 1999-08-11 | 李渭瀛 | Entry and exit gripper head of rapier loom |
| CN1257947A (en) * | 1998-12-23 | 2000-06-28 | 索梅特纺织机械股份公司 | Paired weft yarn feeding and draw-off gripper for loom |
| CN1480574A (en) * | 2002-08-30 | 2004-03-10 | �����꼼���ɷݹ�˾ | Weft conveying yarn gripper for loom and improved pathfinder thereof |
| CN1570237A (en) * | 2003-04-10 | 2005-01-26 | 普洛玛技术股份公司 | Improved-operation compact gripper for weaving looms |
| DE102005014107A1 (en) * | 2005-03-22 | 2006-09-28 | Picanol N.V. | Receiving gripper with a hook-shaped insert and method for producing the hook-shaped insert |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2573241B9 (en) | 2015-04-22 |
| EP2573241A1 (en) | 2013-03-27 |
| CN103015005A (en) | 2013-04-03 |
| ITMI20111710A1 (en) | 2013-03-23 |
| EP2573241B1 (en) | 2014-10-01 |
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