CN101008125A - Controlled weft brake - Google Patents
Controlled weft brake Download PDFInfo
- Publication number
- CN101008125A CN101008125A CNA2007100040386A CN200710004038A CN101008125A CN 101008125 A CN101008125 A CN 101008125A CN A2007100040386 A CNA2007100040386 A CN A2007100040386A CN 200710004038 A CN200710004038 A CN 200710004038A CN 101008125 A CN101008125 A CN 101008125A
- Authority
- CN
- China
- Prior art keywords
- brake
- yarn
- electromagnet
- rocking bar
- band
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 244000309464 bull Species 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 238000009941 weaving Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/20—Co-operating surfaces mounted for relative movement
- B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to 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
- B65H2555/00—Actuating means
- B65H2555/10—Actuating means linear
- B65H2555/13—Actuating means linear magnetic, e.g. induction motors
-
- 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)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A controlled thread brake for braking a weft thread ( 10 ) in a weaving machine is presented which comprises a brake band ( 3 ) and a brake body ( 2 ), with the thread brake ( 1 ) additionally comprising an electromagnet ( 6 ) and a rotatable or rocking lever ( 4 ) which can be moved by means of the electromagnet. The lever ( 4 ) is connected to the brake band ( 3 ) so that a pulling force can be exerted in the longitudinal direction of the brake band by means of the electromagnet ( 6 ) in order to be able to press the latter against the brake body ( 2 ) for braking the weft thread.
Description
Technical field
The present invention relates to a kind of by described controlled weft brake and a kind of loom that this Yarn Brake is housed of in a loom, braking weft yarn of claim 1 preamble.
Background technology
In loom, be generally used for supplying the line tube and the braking weft yarn when weft yarn inserts end of the Yarn Brake between the shed open of weft yarn.Recently loom uses any graduated application weft yarn of controlled weft brake to insert at weft yarn.EP0 475 892A1 disclose a kind of like this Yarn Brake, and this Yarn Brake comprises brake band and movable brake body, and brake body and positioning motor connect into the braking maneuver that the rotation of positioning motor is converted to brake body.Thereby the available positioning motor control braking moment and the brake force that acts on the weft yarn.The shortcoming of the disclosed Yarn Brake of EP0 475 892A1 is that to insert the duration in each stage than weft yarn slow, i.e. the control signal that braking action is received than positioning motor generally postpone 30hm or more than.Therefore when weft yarn insertion rate is very high, can't regulate braking or at least very difficult according to current weft yarn data.Another shortcoming is this Yarn Brake production cost height.
Summary of the invention
The purpose of this invention is to provide the controlled weft brake and the loom that this Yarn Brake is arranged of braking weft yarn in loom, the reaction time of this Yarn Brake is shorter than above-mentioned existing Yarn Brake, and production cost reduces.
According to the present invention, this purpose is by realizing by the described Yarn Brake of claim 1 with by the described loom of claim 10.
The controlled weft brake of the present invention of braking weft yarn comprises brake band such as flexible braking band and for example can be static and/or be arranged in brake body on the fixed position in loom.In addition, this Yarn Brake comprises the bull stick or the rocking bar of electromagnet and available this solenoid actuated, this rocking bar and this brake band connect into can brake band vertically on working tension and make brake band press brake body and brake weft yarn.This Yarn Brake comprises two or more brake bodies in a preferred embodiment, and in another preferred embodiment, brake body is curved and/or make passive brake component.
Brake band can fixing on one side of first tie point such as brake band or elasticity is connected on the support and in the vertical from this first tie point, one determining deviation as being connected on this rocking bar in fixing on the another side or elasticity.In a preferred embodiment, this Yarn Brake comprises that the spring part that discharges this Yarn Brake is as acting on tension spring or compression spring and/or the arm spring on the run-on point of rocking bar on this rocking bar.This brake band also can be provided with bias tension, thereby can be used as the spring part that discharges this this Yarn Brake.
This rocking bar can linearly also can be dihedral.The run-on point of rocking bar for example can be between brake band and the electromagnet or on brake band or this side one side of electromagnet.In a preferred embodiment, rocking bar and brake band meet at right angles.
In a preferred embodiment, this rocking bar of electromagnet is provided with armature, and described armature comprises ferromagnetic or permanent-magnet material, and for example the part of rocking bar or rocking bar is made armature.When needing, this Yarn Brake can comprise at least one second electromagnet, and with its actuatable rocking bar and/or brake band, it can be for example as discharging magnet and/or being used for auxiliary first electromagnet.In another preferred embodiment, this electromagnet has the U-iron heart or this electromagnet to make the pot magnet that this armature is passed in its magnetic field.
In a preferred embodiment, between armature and the electromagnet air gap is arranged during braking.Thereby can when braking, regulate brake force with the electric current in the electromagnet.
In addition, the present invention includes the loom that is equipped with by described at least one Yarn Brake of above-mentioned arbitrary embodiment.
Yarn Brake of the present invention is the fast reaction Yarn Brake, is specially adapted to the fast turn-around loom of its yarn insertion speed for inserting for 500 times greater than for example per minute.The move distance of movable part can be very short, for example be 1mm or less than 1mm, thereby the reaction time can be less than 10ms.In addition, the brake force of the Current Control in the available electromagnet during braking, brake force roughly is directly proportional with this electric current.In other words, Yarn Brake of the present invention can be regulated braking according to instant weft yarn data especially in the fast turn-around loom.Another advantage is that the adjustable range of brake force is big, thereby can be used for the yarn of the whole fineness from the spun yarn to the rove.In addition, as brake band crack 1-2mm, make brake band at when braking bump brake body, Yarn Brake then of the present invention has useful self-cleaning function.Another advantage is that the production cost of above-mentioned Yarn Brake reduces, the control simple economy.
Description of drawings
The above-mentioned explanation of embodiment is exemplary.Can draw other preferred embodiment from independent claims and accompanying drawing.In addition, within the scope of the present invention, also can make up each feature described, illustrated embodiment mutually and form new embodiment.
Describe the present invention in detail below in conjunction with exemplary embodiments and accompanying drawing, in the accompanying drawing:
Fig. 1 is the stereogram of Yarn Brake one exemplary embodiments of the present invention;
Fig. 2 is the side view of this exemplary embodiments;
Side view when Fig. 3 A Yarn Brake second exemplary embodiments of the present invention is braked; And
Side view when Fig. 3 B is the release of exemplary embodiments Yarn Brake shown in Fig. 3 A.
The specific embodiment
Fig. 1 and 2 is respectively the stereogram and the side view of Yarn Brake one exemplary embodiments of the present invention.The Yarn Brake 1 of the braking weft yarn 10 that is shown in the loom comprise the brake band 3 that for example can be flexibility and/or elastic webbing such as steel band and potsherd on wearing face, for example end face is preferably arranged or ceramic coating or hard chrome coating brake body 2.In addition, the Yarn Brake 1 of this exemplary embodiments comprises the bull stick or the rocking bar 4 of electromagnet 6 and available this solenoid actuated, this rocking bar and this brake band 3 connect into can brake band vertically on working tension and make brake band press brake body 2 and braking weft yarn 10.Certainly also two or more brake bodies can be set.Brake body is preferably passive brake component.
Brake band can be fixing on the end of first tie point such as brake band or elasticity is connected on the support 8 and in the vertical from second tie point of this first tie point, one determining deviation, be connected on this rocking bar 4 in fixing on the other end or elasticity especially.In a preferred embodiment, this Yarn Brake comprises that the spring part that can discharge this Yarn Brake when cutting off electric current is as acting on tension spring on this rocking bar or the arm spring on compression spring and/or the run-on point at rocking bar.Also this brake band itself has bias tension, thereby can be used as the spring part that discharges this this Yarn Brake.In exemplary embodiments shown in Fig. 1 and 2, brake band is braked the deflection of body 2 slightly, thus electromagnet 6 usefulness rocking bars 4 brake band vertically on during effect one power brake band press brake body 2 and clamp the weft yarn 10 that is inserted between brake band and the brake body.
This rocking bar 4 can be as illustrated in fig. 1 and 2 linearly, and the run-on point of rocking bar can be between brake band and electromagnet.But also can use the dihedral rocking bar and/or run-on point be arranged in this side of brake band or electromagnet on one side on.In illustrated property embodiment, rocking bar 4 meets at right angles with brake band 3, and brake band 3 is fixed on the rocking bar.
In a preferred embodiment, the armature 5 of electromagnet 6 is arranged on this rocking bar 4, for example this rocking bar or its part are as armature.Comprise ferromagnetic as the part 5 of armature on this armature or the rocking bar or permanent-magnet material, for example magnetic mild steel or under the situation of permanent-magnet material, for example be the magnetic action district of ALNICO.Use permanent-magnet material as this armature, this electromagnet also can be used to discharge brake band when current reversal.This electromagnet preferably has the U-iron heart or this electromagnet to be preferably pot magnet, thereby forms closed magnetic circuit with armature and air gap during the electromagnet excitation.
Yarn Brake 1 when Fig. 1 and 2 illustrates braking, that is, electromagnet makes it against brake body 2 with rocking bar 4 stretching brake bands 3, thereby weft yarn 10 is clamped between brake band and the brake body.Shown in the exemplary embodiments, between armature 5 and the electromagnet 6 air gap is arranged during braking.Thereby can regulate brake force with the electric current in the electromagnet when braking, this brake force roughly is directly proportional with electric current.
Fig. 3 A is the side view of Yarn Brake second exemplary embodiments of the present invention.The difference of Yarn Brake shown in Yarn Brake and Fig. 1 and 2 is second electromagnet 6 ' shown in Fig. 3 A.As describing in detail in conjunction with Fig. 1 and 2 like that, Yarn Brake 1 comprise brake band 3 and brake body 2 and first electromagnet 6 and with brake band 3 connect into can be on brake band be vertical the bull stick or the rocking bar 4 of working tension.In second exemplary embodiments, rocking bar 4 can be activated by two electromagnet 6,6 ', thereby for example first electromagnet is used for braking as mentioned above, and second electromagnet is used for the release of brake band.
Yarn Brake 1 when Fig. 3 A illustrates braking, that is, first electromagnet, 6 usefulness rocking bars, 4 stretching brake bands 3 make brake band against brake body 2, and weft yarn 10 is clamped between brake band and the brake body.In exemplary embodiments shown in Fig. 3 A, second electromagnet, 6 ' no power during braking.The effect of the air gap between first electromagnet 6 and the armature 5 illustrates in the explanation to first exemplary embodiments.
In a preferred embodiment, the part of rocking bar 4 is used as armature 5, thereby can two electromagnet be set on the opposed both sides of armature, between electromagnet and the armature air gap is arranged.Also can use a magnetic conduction york piece to replace the U-iron heart or pot core, two electromagnet are arranged on the york piece, thereby york piece and electromagnet 6,6 ' and armature 5 and air gap form closed magnetic circuit.
Side view when Fig. 3 B is the release of exemplary embodiments Yarn Brake shown in Fig. 3 A.Difference shown in Yarn Brake shown in Fig. 3 B and Fig. 3 A is the state of second electromagnet, 6 ' excitation, rocking bar 4 positions and brake band 3.In Fig. 3 B, second electromagnet 6 ' discharges brake band 3 with rocking bar 4, thereby brake band upwards leaves brake body 2, and weft yarn 10 can pass freely through space between brake band and the brake body, and this space is generally 1-2mm.On the contrary, the electric current in first electromagnet 6 cuts off when Yarn Brake discharges in exemplary embodiments shown in Fig. 3 B.Between second electromagnet 6 ' and the armature 5 air gap is arranged, but in most cases need not this air gap, because need not adjusting power when discharging.
The controlled weft brake that the present invention brakes weft yarn can be used on the various looms as gripper shuttle loom and Rapier looms, is specially adapted to the fast turn-around loom, because the move distance of rocking bar and brake band is very short, the reaction of Yarn Brake is therefore very fast.This Yarn Brake can be used for very thick yarn owing to the brake force scope is very big.
Claims (10)
1. in loom, brake the controlled weft brake of weft yarn (10), comprise brake band (3) and brake body (2), it is characterized in that, this Yarn Brake (1) comprises electromagnet (6,6 ') and the bull stick of available this solenoid actuated or rocking bar (4), this rocking bar and this brake band (3) connect into can brake band vertically on working tension and make brake band press brake body (2) and the braking weft yarn.
2. by the described Yarn Brake of claim 1, it is characterized in that this Yarn Brake comprises that two or more brake bodies (2) and/or this brake body or these brake bodies are as passive brake component.
3. by claim 1 or 2 described Yarn Brakes, it is characterized in that, brake band (3) is at first tie point, at one end go up firmly or flexibly be connected that support (8) is gone up and in the vertical at interval especially, at second tie point, firmly or flexibly be connected on this rocking bar (4) on the other end especially.
4. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that this Yarn Brake comprises the spring part that discharges this Yarn Brake, particularly acts on tension spring or compression spring and/or arm spring on the run-on point of rocking bar and/or prestressing force brake band (3) on this rocking bar (4).
5. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that linearly shape or dihedral and/or rocking bar (4) and brake band (3) setting that meets at right angles of this rocking bar (4).
6. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that the run-on point of rocking bar (4) is positioned between brake band (3) and the electromagnet (6) and/or along a side and is positioned on this brake band or the electromagnet side.
7. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that, this rocking bar (4) is provided with electromagnet (6,6 ') armature (5), described armature comprises ferromagnetic or permanent-magnet material and/or rocking bar (4) or its a part of armature (5) that is used as, and/or electromagnet (6,6 ') has the U-iron heart or is pot magnet, and this armature (5) is passed in magnetic field.
8. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that, this Yarn Brake comprises at least one second electromagnet (6 '), and with its actuatable rocking bar (4) and/or brake band (3), it can be used as release magnet and/or is used for auxiliary first electromagnet (6).
9. by the described Yarn Brake of above-mentioned arbitrary claim, it is characterized in that, during braking, be provided with air gap between armature (5) and the electromagnet (6,6 ').
10. a loom comprises the loom by described at least one Yarn Brake of above-mentioned arbitrary claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06405031 | 2006-01-24 | ||
| EP06405031.3 | 2006-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008125A true CN101008125A (en) | 2007-08-01 |
Family
ID=36035637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100040386A Pending CN101008125A (en) | 2006-01-24 | 2007-01-23 | Controlled weft brake |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070169830A1 (en) |
| EP (1) | EP1811068B1 (en) |
| JP (1) | JP2007197893A (en) |
| CN (1) | CN101008125A (en) |
| DE (1) | DE502006003985D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349681A (en) * | 2015-10-30 | 2018-07-31 | 罗伊有限公司 | Guide type electromagnetic brake for controlling the tension of weft yarn in loom |
| CN108950823A (en) * | 2018-09-20 | 2018-12-07 | 太平洋纺织机械（常熟）有限公司 | Weft tension control device for rapier loom |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10150504A1 (en) * | 2001-10-12 | 2003-04-17 | Iropa Ag | Yarn brake has a brake blade held against a braking surface by electromagnetic force, to be detached from the surface by the opening of a swing flap which exposes the yarn braking zone |
| US7543610B2 (en) * | 2006-06-16 | 2009-06-09 | Sultex Ag | Thread clamp for a rapier head |
| US8960596B2 (en) | 2007-08-20 | 2015-02-24 | Kevin Kremeyer | Energy-deposition systems, equipment and method for modifying and controlling shock waves and supersonic flow |
| EP2354070B1 (en) | 2010-02-01 | 2013-01-02 | Iro Ab | Yarn tensioner |
| EP2718490A4 (en) * | 2011-06-16 | 2015-03-25 | American Linc Llc | Overfeed roller assembly, textile, and method of adjusting tension in a running yarn |
| US10669653B2 (en) * | 2015-06-18 | 2020-06-02 | Kevin Kremeyer | Directed energy deposition to facilitate high speed applications |
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| US2129994A (en) * | 1930-06-12 | 1938-09-13 | Celanese Corp | Automatic weft-replenishing loom |
| US2429006A (en) * | 1945-11-13 | 1947-10-14 | Crompton & Knowles Loom Works | Brake for aximinster loom weft needles |
| US2819736A (en) * | 1953-02-07 | 1958-01-14 | Sulzer Ag | Periodically acting thread brake |
| BE613016A (en) * | 1961-02-13 | 1962-05-16 | Algemene Kunstzijde Unie Nv | Process for the manufacture of fabrics, shuttleless loom for use therefor, as well as the products thus manufactured |
| CH499646A (en) * | 1968-05-30 | 1970-11-30 | Elitex Zavody Textilniho | Method and device for controlling the weft threads when changing colors on shuttleless looms |
| CH480255A (en) * | 1968-10-23 | 1969-10-31 | Sulzer Ag | Thread brake |
| CH514703A (en) * | 1970-09-24 | 1971-10-31 | Fischer Ag Brugg Georg | Weft thread blocking device on a rapier weaving machine working with weft selection |
| CH564478A5 (en) * | 1973-04-03 | 1975-07-31 | Sulzer Ag | |
| DE3036420A1 (en) * | 1979-09-28 | 1981-04-16 | Maschinenfabrik Rüti AG, Rüti, Zürich | Yarn brake for any type of processing machine - has convex surfaced detail adjustable relatively to leaf spring |
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| US4875506A (en) * | 1987-05-27 | 1989-10-24 | Sulzer Brothers Limited | Yarn brake for a weft yarn |
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| DE58908655D1 (en) * | 1988-08-25 | 1995-01-05 | Rueti Ag Maschf | Method for avoiding tension peaks of a weft thread during weft insertion during the braking process. |
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2006
- 2006-12-22 EP EP06126959A patent/EP1811068B1/en active Active
- 2006-12-22 DE DE502006003985T patent/DE502006003985D1/en active Active
-
2007
- 2007-01-23 CN CNA2007100040386A patent/CN101008125A/en active Pending
- 2007-01-23 JP JP2007012098A patent/JP2007197893A/en active Pending
- 2007-01-23 US US11/657,187 patent/US20070169830A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349681A (en) * | 2015-10-30 | 2018-07-31 | 罗伊有限公司 | Guide type electromagnetic brake for controlling the tension of weft yarn in loom |
| CN108950823A (en) * | 2018-09-20 | 2018-12-07 | 太平洋纺织机械（常熟）有限公司 | Weft tension control device for rapier loom |
| WO2020056899A1 (en) * | 2018-09-20 | 2020-03-26 | 太平洋纺织机械（常熟）有限公司 | Weft yarn tension control apparatus for rapier loom |
| CN108950823B (en) * | 2018-09-20 | 2023-04-14 | 太平洋纺织机械（常熟）有限公司 | Weft tension control device for rapier loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007197893A (en) | 2007-08-09 |
| EP1811068B1 (en) | 2009-06-17 |
| DE502006003985D1 (en) | 2009-07-30 |
| EP1811068A1 (en) | 2007-07-25 |
| US20070169830A1 (en) | 2007-07-26 |
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