EP1420093A2 - Verfahren zum Steuern einer elektischen Leistenvorrichtung und elektrische Leistenvorrichtung - Google Patents
Verfahren zum Steuern einer elektischen Leistenvorrichtung und elektrische Leistenvorrichtung Download PDFInfo
- Publication number
- EP1420093A2 EP1420093A2 EP03025607A EP03025607A EP1420093A2 EP 1420093 A2 EP1420093 A2 EP 1420093A2 EP 03025607 A EP03025607 A EP 03025607A EP 03025607 A EP03025607 A EP 03025607A EP 1420093 A2 EP1420093 A2 EP 1420093A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary member
- selvedge
- revolution
- turned
- reverse
- 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.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
- D03C7/08—Devices for twisting warp threads repeatedly in the same direction
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
- D03C7/04—Mechanisms having discs oscillating about a weftwise axis and having apertures for warp threads
Definitions
- the invention relates to a method of controlling an electric selvedge device of a loom and the electric selvedge device of the loom.
- Japanese Patent No. 2933889 discloses a twist selvedge forming method using a twist selvedge device.
- the twist selvedge forming method uses, as shown in Fig. 1, a twist selvedge device provided with a twist disc (rotary member) 4 having two thread holes (guide portions) 5, 6 through which two twist threads (selvedge threads) 2, 3 are guided, wherein the twist disc 4 is turned in one direction, then it is turned in the other direction, i.e., opposite direction so that the twist or entanglement of the twist threads 2, 3 caused by the turning of the twist disc 4 in one direction is cancelled by the turning of the same in the opposite direction. In such a manner, each weft 7 is held between the twists of the twist threads 2, 3.
- JP 1999-501999A discloses a leno weaving device provided with an arm through which two entangled threads are supplied to a rotor (rotary member), wherein the rotor is turned in one direction by a specific number of revolution, then the turning direction of the rotor is reversed so that the rotor is turned in a reverse turning direction, thereby canceling the twists of the entangled threads.
- Fig. 2 shows a drawback of the selvedge forming method as described in Japanese Patent No. 2933889, as an example, wherein the twist disc 4 is turned in reverse rightward by one revolution as the revolution in an opposite direction at 100 th pick.
- Fig. 2(1) the twist disc 4 is turned in reverse rightward by half revolution in a state where the twist disc 4 finished turning leftward by half revolution (at 100 th pick).
- Fig. 2(2) the twist disc 4 is further turned in reverse rightward by half revolution.
- the turning in Fig. 2(1) and (2) is continuously effected.
- Fig. 2(3) a next weft 7 runs toward sheddings of the twist threads 2, 3.
- the electric selvedge device of the invention prevents wefts from loosening by forming a twist, in which the weft is not inserted, between the wefts where the selvedge portions are adjacent to each other when the rotary member for guiding the selvedge threads is turned in reverse.
- a method of controlling an electric selvedge device which turns a rotary member provided with a pair of guide portions, through which selvedge threads pass, in one direction, and subsequently turns the rotary member in other direction to form a selvedge, wherein the method comprising the step of forming a twist, in which a weft is not inserted, by a reverse turning operation of the rotary member when the rotary member is turned in reverse from one direction to the other direction.
- the number of revolution of the rotary member, when the rotary member is turned in reverse can be set optionally, and according to the third aspect of the invention, the number of revolution of the rotary member, and a reverse revolution speed thereof, when the rotary member is turned in reverse, are relatively changed.
- Fig. 3 shows an electric selvedge device 10 for carrying out a control method of the invention.
- the electric selvedge device 10 is provided with a rotary member 8, a driving unit 9 and a controller 11.
- the rotary member 8 has a pair of guide portions 14, 15 made up of two thread holes for guiding two selvedge threads 12, 13. Two selvedge threads 12, 13 are unwound from bobbins 16, 17, respectively, and pass through a guide 18, then pass through the guide portions 14, 15 of the rotary member 8, and finally they are entangled with each other to hold each end of the wefts 7.
- the rotary member 8 is driven by a rotation transmission means 19 such as a roller, a belt and so forth of the driving unit 9 from the outer peripheral side of the rotary member 8 not to impede the twisting operation of two selvedge threads 12, 13.
- the driving unit 9 includes a driving motor 20 which can be changed in a turning direction, the number of revolution, and a revolution speed, and it is controlled by the controller 11.
- the controller 11 controls the turning direction, the number of revolution, and the revolution speed of the driving motor 20 inside the driving unit 9 based on the control method of the electric selvedge device of the invention in a state where it is synchronized with a main shaft 21 in response to set data from an input device 22.
- the controller 11 controls the rotary member 8 such that it turns the rotary member 8 in one direction by a predetermined number of revolution during multiple pick to grasp the weft 7, then once turns the rotary member 8 in reverse, and then turns the rotary member 8 in the other direction by a predetermined number of revolution during multiple pick to grasp the weft 7, which operations are repeated.
- the driving motor 20 inside the driving unit 9 is driven for turning the rotary member 8 in one direction by the predetermined number of revolution every each pick to grasp the weft 7, and once turning the rotary member 8 in reverse, subsequently turning the rotary member 8 in the other direction by the predetermined number of revolution every predetermined number of picks to grasp the weft 7, which operations are repeated, whereby when the turning direction is reversed during the formation of the selvedge, the twist in which the weft 7 is not inserted is formed by the reverse turning operation.
- Fig. 4 is a view for explaining the selvedge forming process according to the control method of the electric selvedge device of the invention and the corresponding relation between the number of picks and the number of revolution during the selvedge forming process.
- the control of the selvedge forming is effected such that the number of revolution of the rotary member 8 is set at one revolution when it is turned in reverse, and the turning direction of the rotary member 8 is reversed immediately after the weft 7 at the 100 th pick passes through the sheddings of the selvedge threads 12, 13.
- the control of the selvedge forming is effected such that the number of revolution of the rotary member 8 is set at one revolution when it is turned in reverse, and the turning direction of the rotary member 8 is reversed immediately after the weft 7 at the 100 th pick passes through the sheddings of the selvedge threads 12, 13.
- Fig. 5 is a view for explaining the selvedge forming process according to another control method of the electric selvedge device of the invention and the corresponding relation between the number of picks and the number of revolution during the selvedge forming process.
- the control of the selvedge forming is effected such that the number of revolution of the rotary member 8 is set at one and a half revolution when it is turned in reverse, and the turning direction of the rotary member 8 is reversed after the weft 7 at the 100 th pick passes through the sheddings of the selvedge threads 12, 13, and the turning of the rotary member 8 is completed. Also in the table shown in Fig.
- the twist in which the weft 7 is not inserted, is once rendered in a non-twisted state when the rotary member 8 is turned in reverse, and the rotary member 8 is turned by at least one revolution, to render the weft 7 in a shedding state to form the twist.
- Fig. 6 shows an example wherein the number of revolution of the rotary member 8 when it is turned in reverse can be optionally set using the controller 11 having a storage function.
- the controller 11 can store therein the corresponding relation between the number of revolution of the main shaft 21 of the loom (revolution speed of the loom) and the number of revolution when the rotary member 8 is turned in reverse owing to the storage function of an internal memory.
- an operator operates the input device 22 to set the number of revolution, when the rotary member 8 is turned in reverse, e.g., at one and a half revolution in the case where the revolution speed of the main shaft 21 is equal to 800 rpm while the number of revolution of the rotary member 8, when the rotary member 8 is turned in reverse, is set, e.g., at one revolution in the case where the revolution speed of the main shaft 21 is equal to 1000 rpm.
- the number of revolution of the rotary member 8, when the rotary member 8 is turned in reverse is optionally set, and it is fixed during the weaving operation. This is the case as exemplified in Figs. 4 and 5.
- Multiple number of revolution is optionally set relative to at least one of the conditions of the kind of threads, the revolution speed of the main shaft 21 of the loom, and so forth, and when the kind of threads and the revolution speed of the main shaft 21 of the loom are changed during the weaving operation, the multiple number of revolution is freely changed to the number of revolution corresponding to the changed condition every time the change of condition occurs. This is the case as exemplified in Fig. 6.
- the number of revolution of the rotary member 8 when it is turned in reverse, is an integer-double unit of the half revolution, it may be set at n ⁇ half revolution. It is needless to say that the minimum number of revolution capable of forming the twists between the selvedge threads 12, 13 is defined as a settable minimum value. In the control shown in Fig. 4, the settable minimum value is one revolution (half revolution + half revolution), and in the control shown in Fig. 5, it is one and a half revolution (one revolution + half revolution), respectively. Since the rotary member 8 of the electric selvedge device 10 is turned normally per half revolution unit, if the number of revolution of the rotary member 8 can be set per half revolution unit, the setting per se can be simplified.
- buttons of ⁇ ⁇ are provided on the input device 22 for setting the number of revolution of the rotary member 8 when the rotary member 8 is turned in reverse, wherein if one button ⁇ is pushed, the number of revolution, when the rotary member 8 is turned in reverse, increases per half revolution unit, while if the other button ⁇ is pushed, the number of revolution, when the rotary member 8 is turned in reverse, decreases per half revolution unit.
- the controller 11 relatively changes the number of revolution of the rotary member 8 and the revolution speed, when the rotary member 8 is turned in reverse, if need be. If the revolution speed is allowed to increase as the number of revolution of the rotary member 8 increases when the rotary member 8 is turned in reverse, time needed for the turning of the rotary member 8, when it is turned in reverse, can be reduced, and also the rotary member 8 can be synchronized with the main shaft 21 of the loom. Meanwhile, it is desirable that the time needed for the rotary member 8 to be turned in one direction or in the other direction is substantially the same as the time needed for the turning of the rotary member 8 to be turned in reverse. It is needless to say that the rotary member 8 can be structured as a propeller type.
- the electric selvedge device since the electric selvedge device turns a rotary member provided with a pair of guide portions, through which selvedge threads pass, in one direction, and turns subsequently in the other direction, thereby forming selvedge, wherein when the rotary member is turned in reverse from one direction to the other direction, the selvedge threads are entangles with each other and a twist, in which the weft is not inserted, is formed between the wefts which are adjacent to each other at selvedge portions, the effect for fastening mutual selvedge threads which are entangled with the weft is improved, thereby preventing the looseness of the weft to greatly contribute to the quality of the fabric.
- the state of entanglement of the selvedge threads can be adjusted, and if multiple number of revolution can be optionally set at least every one of the conditions of the kind of threads, the revolution speed of the main shaft of the loom, and so forth, the accurate twist corresponding to the condition can be formed.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002331730A JP2004162226A (ja) | 2002-11-15 | 2002-11-15 | 電動耳組装置の制御方法 |
| JP2002331730 | 2002-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1420093A2 true EP1420093A2 (de) | 2004-05-19 |
| EP1420093A3 EP1420093A3 (de) | 2004-08-25 |
Family
ID=32171403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03025607A Withdrawn EP1420093A3 (de) | 2002-11-15 | 2003-11-06 | Verfahren zum Steuern einer elektischen Leistenvorrichtung und elektrische Leistenvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1420093A3 (de) |
| JP (1) | JP2004162226A (de) |
| CN (1) | CN1500924A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020100857A1 (de) * | 2020-01-15 | 2021-07-15 | Gebrüder Klöcker GmbH | Textiles Flächengebilde mit Kett- und Schussfäden |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754794B (zh) * | 2018-07-03 | 2023-10-24 | 吴江万工机电设备有限公司 | 一种纺织机械用转筒及其应用 |
| CN111286839B (zh) * | 2020-04-16 | 2024-07-26 | 山东玉马遮阳科技股份有限公司 | 一种垂直柔纱窗帘布的织造方法 |
| CN112323224B (zh) * | 2020-10-26 | 2022-06-10 | 绍兴市柯桥区西纺纺织产业创新研究院 | 筒子架直供经无轴齿形开口圆盘织造装置及绞纱组织网格布 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29521434U1 (de) * | 1994-02-23 | 1997-03-27 | Lindauer Dornier Gmbh, 88131 Lindau | Rotations-Kantendreher für Webmaschinen |
| DE19548955C1 (de) * | 1995-12-28 | 1996-09-12 | Kloecker Entwicklungs Gmbh | Vorrichtung zum Bilden einer Dreherkante, insbesondere für schützenlose Webmaschinen |
-
2002
- 2002-11-15 JP JP2002331730A patent/JP2004162226A/ja active Pending
-
2003
- 2003-11-06 EP EP03025607A patent/EP1420093A3/de not_active Withdrawn
- 2003-11-11 CN CNA200310114881A patent/CN1500924A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020100857A1 (de) * | 2020-01-15 | 2021-07-15 | Gebrüder Klöcker GmbH | Textiles Flächengebilde mit Kett- und Schussfäden |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1500924A (zh) | 2004-06-02 |
| EP1420093A3 (de) | 2004-08-25 |
| JP2004162226A (ja) | 2004-06-10 |
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