WO1997033023A1 - Coupling device for textile machines and dobby with this coupling device - Google Patents
Coupling device for textile machines and dobby with this coupling device Download PDFInfo
- Publication number
- WO1997033023A1 WO1997033023A1 PCT/CH1997/000083 CH9700083W WO9733023A1 WO 1997033023 A1 WO1997033023 A1 WO 1997033023A1 CH 9700083 W CH9700083 W CH 9700083W WO 9733023 A1 WO9733023 A1 WO 9733023A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pawl
- coupling device
- main shaft
- dobby
- eccentric disc
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/16—Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
Definitions
- the invention relates to a coupling device for textile machines according to the preamble of claim 1 and a dobby with such a device.
- Known devices of this type have an eccentric disc which is slidably or rotatably arranged on a main shaft, a connecting rod which on the
- Eccentric disc is mounted, a pawl which is pivotally arranged on the eccentric disc and a device for actuating the pawl, which comprises a plurality of mechanical elements. Furthermore, a locking device is provided to secure the pawl in the engaged state. Several mechanical elements are also required for this.
- the invention has for its object to provide a coupling device for textile machines, which does not have the disadvantages mentioned.
- the device and the pawl are arranged in close proximity to one another on the eccentric disc and are directly connected to one another. As a result, the pawl is positively brought into the respective position and held by the device, causing a malfunction of the
- Coupling device prevented and the switching phase of the coupling device is shortened. With the shorter switching phase, shorter standstill times of the dobby can be realized, which results in a higher working speed.
- Fig. 1 is a side view of an embodiment of an inventive
- FIG. 6 shows a first embodiment of a device for actuating the pawl
- Fig. 7 shows a second embodiment of a
- Fig. 8 shows a third embodiment of a
- the coupling device in question here is a coupling device for a rotary dobby, which moves the heald frames up and down via a lever system and which has a main shaft 1 on which the device is slidably or rotatably arranged.
- the main shaft 1 has two grooves 2, 2 ′ which are formed diametrically opposite on the circumference of the main shaft 1.
- the device contains at least one eccentric disk 3, which is mounted on the main shaft 1.
- a pawl 4 and a device 6 for actuating the pawl are arranged on the eccentric disc 3 and are directly connected to one another.
- the device contains a connecting rod 5, which is arranged rotatably on the one hand on the eccentric disc 3 and on the other hand is connected to the lever system 7.
- the main shaft 1 rotates intermittently and comes to a standstill after each rotation by 180 °.
- FIG. 1 shows the main shaft in the standstill phase, in which the pawl 4 is held outside the coupling groove 2 by means of the device 6, so that when the main shaft 1 is turned further, the coupling device cannot move. If the device 6 is now actuated in accordance with the pattern in a standstill phase, the pawl 4 is inserted into the coupling groove 2. In the following cycle, the main shaft 1 rotates 180 °, whereby the eccentric disc 3 with the latched pawl 4 follows this rotation and thereby the connecting rod 5 leads to the other end position and thereby moves the shaft 9 via the lever system 8.
- Figure 2 shows the coupling device according to a
- Lever system 7 brings the shaft 8 into its low lying position. If the device 6 is now operated according to the pattern in the standstill phase, the pawl 4 is pulled out of the coupling groove 2, 2 * and remains outside the effective range of the coupling groove 2, 2 ', so that the coupling device remains in this rest position.
- FIG. 3 shows a coupling device in the standstill phase of the main shaft 1.
- the pawl 4 is engaged in the coupling groove 2, 2 and is locked by the device 6.
- Figure 4 shows a coupling device in a phase of movement of the main shaft 1.
- the pawl 4 is engaged in the coupling groove 2, 2 'and the
- Coupling device is set into an eccentric movement.
- Figure 5 shows a coupling device after a half rotation of the main shaft 1 with pawl 4 by 180 °.
- the pawl 4 is connected to the device 6 and is thereby locked.
- the figure shows the pawl 4 drawn from the coupling groove 2, 2 '.
- the device has a device 6 for actuating the pawl 4.
- the device 6 can have various embodiments.
- an electrical control is provided, the device 6 being either an electromagnet or a linear motor which is controlled by the machine control 22.
- the armature part of the electromagnet or of the linear motor is connected to the pawl 4
- control takes place pneumatically or hydraulically.
- a working cylinder 26 is provided for this purpose.
- the device 6 is a piezoelectric element 28, the free end of which is connected to the pawl 4.
- the device contains at least one eccentric disc 3 on which a pawl 4 for coupling the eccentric disc to a main shaft 1 and a device 6 which is directly connected to the pawl 4 and a connecting rod 5 which is mounted on the eccentric disc.
- the pawl 4 is actuated positively by the device 6 and brought into and out of engagement with the main shaft.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU17642/97A AU1764297A (en) | 1996-03-06 | 1997-03-03 | Coupling device for textile machines and dobby with this coupling device |
EP97903201A EP0833966A1 (en) | 1996-03-06 | 1997-03-03 | Coupling device for textile machines and dobby with this coupling device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH60596 | 1996-03-06 | ||
CH605/96 | 1996-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997033023A1 true WO1997033023A1 (en) | 1997-09-12 |
Family
ID=4190866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000083 WO1997033023A1 (en) | 1996-03-06 | 1997-03-03 | Coupling device for textile machines and dobby with this coupling device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0833966A1 (en) |
AU (1) | AU1764297A (en) |
WO (1) | WO1997033023A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2398229A1 (en) * | 1977-07-21 | 1979-02-16 | Sulzer Ag | CLUTCH TO RELEASE THE MOVEMENT OF AN ELEMENT OF A TEXTILE MACHINE |
EP0080547A1 (en) * | 1981-11-30 | 1983-06-08 | GebràDer Sulzer Aktiengesellschaft | Operation process for a coupling device to control the heald frames of a loom, and relevant coupling device |
JPH07166444A (en) * | 1993-12-15 | 1995-06-27 | Murata Mach Ltd | Rotary dobby |
JPH0827642A (en) * | 1994-07-07 | 1996-01-30 | Toyota Autom Loom Works Ltd | Shedding motion in weaving machine |
-
1997
- 1997-03-03 AU AU17642/97A patent/AU1764297A/en not_active Abandoned
- 1997-03-03 EP EP97903201A patent/EP0833966A1/en not_active Ceased
- 1997-03-03 WO PCT/CH1997/000083 patent/WO1997033023A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2398229A1 (en) * | 1977-07-21 | 1979-02-16 | Sulzer Ag | CLUTCH TO RELEASE THE MOVEMENT OF AN ELEMENT OF A TEXTILE MACHINE |
EP0080547A1 (en) * | 1981-11-30 | 1983-06-08 | GebràDer Sulzer Aktiengesellschaft | Operation process for a coupling device to control the heald frames of a loom, and relevant coupling device |
JPH07166444A (en) * | 1993-12-15 | 1995-06-27 | Murata Mach Ltd | Rotary dobby |
JPH0827642A (en) * | 1994-07-07 | 1996-01-30 | Toyota Autom Loom Works Ltd | Shedding motion in weaving machine |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 095, no. 009 31 October 1995 (1995-10-31) * |
PATENT ABSTRACTS OF JAPAN vol. 096, no. 005 31 May 1996 (1996-05-31) * |
Also Published As
Publication number | Publication date |
---|---|
AU1764297A (en) | 1997-09-22 |
EP0833966A1 (en) | 1998-04-08 |
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