DE546772C - Thread tensioning device for cotton knitting machines - Google Patents
Thread tensioning device for cotton knitting machinesInfo
- Publication number
- DE546772C DE546772C DENDAT546772D DE546772DD DE546772C DE 546772 C DE546772 C DE 546772C DE NDAT546772 D DENDAT546772 D DE NDAT546772D DE 546772D D DE546772D D DE 546772DD DE 546772 C DE546772 C DE 546772C
- Authority
- DE
- Germany
- Prior art keywords
- thread
- tensioning device
- leaf spring
- thread tensioning
- knitting machines
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/44—Tensioning devices for individual threads
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Description
Fadenspannvorrichtung für Cottonwirkmaschinen Die Erfindung bezieht sich auf eine Fadenspannvorrichtung - für die Randmaschenbildung auf Cottonwirkmaschinen.Thread tensioning device for cotton knitting machines The invention relates on a thread tensioning device - for edge stitch formation on cotton knitting machines.
Mit Rücksicht auf die bei Cottonwirkmaschinen jetzt in der Hauptsache zur Verwendung kommenden sehr dünnen Seiden-und Kunstseidenfäden besteht das Haupterfordernis der Fadenspannvorrichtungen darin, eine besonders feine und weiche Einstellung der Fadenspannung zu ermöglichen, um das Reißen der dünnen Fäden zu vermeiden.With regard to the cotton knitting machines now mainly The main requirement is to use very thin silk and rayon threads the thread tensioning devices in it, a particularly fine and soft setting of the Allow thread tension to prevent the thin threads from tearing.
Es sind bereits Fadenspannvorrichtungen bekannt, die aus einem zweiarmigen Gestell bestehen, an dem eine Bremsblattfeder befestigt ist, die mit ihrem freien Schenkel auf die Fläche des Fadenführungsarmes des Gestelles drückt. Bei diesen wirkt die Bremsblattfeder mit Hilfe ihres eigenen Federdruckes auf den unter ihr liegenden Faden ein und bremst dadurch den Faden. Eine Feineinstellung des Federdruckes und damit der Fadenspannung ist nicht möglich, so daß diese Fadenspannvorrichtungen für dünne Fäden nicht geeignet sind.There are already known thread tensioning devices that consist of a two-armed There are frame to which a brake leaf spring is attached, with its free Leg presses on the surface of the thread guide arm of the frame. With these the brake leaf spring acts with the help of its own spring pressure on the one below it lying thread and thereby brakes the thread. Fine adjustment of the spring pressure and thus the thread tension is not possible, so these thread tensioning devices are not suitable for thin threads.
Die Erfindung besteht darin, daß durch eine außerhalb der Auflagefläche des Fadens auf die Bremsblattfeder einwirkende Stellschraube der Bremsdruck und die Länge des Bremsweges des Fadens regelbar ist. Die Stellschraube wirkt auf die Bremsblattfeder mittels einer Bandfeder ein. Die Fadenspannvorrichtung gemäß der Erfindung ermöglicht eine derart feine und weiche Einstellung. der Fadenspannung, daß das Reißen selbst sehr dünner Fäden mit Sicherheit vermieden wird. Die Bandfeder gewährt außerdem den Vorteil, daß sie ;gleichzeitig als Selbsthemmung für die Stellschraube dient, so daß das bisher infolge der Erschütterungen der Maschine auftretende Lösen der Stellschraube verhindert wird.The invention consists in that by an outside of the support surface of the thread acting on the brake leaf spring adjusting screw the brake pressure and the length of the braking distance of the thread is adjustable. The set screw acts on the Brake leaf spring by means of a band spring. The thread tensioning device according to Invention enables such a fine and soft adjustment. the thread tension, that the tearing of even very thin threads is avoided with certainty. The ribbon spring also grants the advantage that it also acts as a self-locking mechanism for the adjusting screw is used so that the loosening that has hitherto occurred as a result of the vibrations of the machine the set screw is prevented.
In der Zeichnung ist die Erfindung. in einem Ausführungsbeispiel dargestellt, und zwar stellt Abb. i die Fadenspannvorrichtung bei geringer, Abb. 2 bei starker Spannung des Fadens dar.In the drawing is the invention. shown in an embodiment, namely Fig. i shows the thread tensioning device with low, Fig. 2 with stronger Tension of the thread.
An dem zweiarmigen Gestell d -ist mittels einer Schraube b das eine Ende einer Bremsblattfeder c befestigt, deren anderes Ende den Faden d gegen die Führungsplatte f drückt. An dem Gestell a ist ferner eine Stellschraube h angeordnet, welche außerhalb der Auflagefläche i des Fadens auf die Bremsblattfeder c derart einwirkt, daß der Bremsdruck und die Länge des Bremsweges regelbar ist. Die Einwirkung der Stellschraube h auf die Bremsblattfeder c geschieht durch Vermittlung einer Bandfeder g, welche ebenfalls durch die Schraube b an dem Gestell befestigt ist Die Bandfeder g dient gleichzeitig als Selbsthemmung für die Stellschraube h.One end of a brake leaf spring c is attached to the two-armed frame d by means of a screw b, the other end of which presses the thread d against the guide plate f. On the frame a an adjusting screw h is also arranged, which acts on the brake leaf spring c outside the support surface i of the thread in such a way that the braking pressure and the length of the braking distance can be regulated. The action of the adjusting screw h on the brake leaf spring c occurs through the intermediary of a band spring g, which is also fastened to the frame by the screw b. The band spring g also serves as a self-locking mechanism for the adjusting screw h.
Gemäß Abb. i ist bei mäßigem Anzug der Stellschraabe. h die Spannung -der Bremsblattfeder c und die Länge des Bremsweges i des Fadens gering, während gemäß Abb.2 durch stärkeres Anziehen der Stellschraube h die Spannung der Bremsblattfeder c erhöht ,und die Länge des Bremsweges des Fadens vergrößert ist.According to Fig. I, the adjusting screw is with moderate tightening. h the tension -the brake leaf spring c and the length of the braking distance i of the thread low, while As shown in Fig. 2, the tension of the brake leaf spring can be increased by tightening the adjusting screw h c increases, and the length of the braking distance of the thread is increased.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE546772T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE546772C true DE546772C (en) | 1932-03-16 |
Family
ID=6561315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT546772D Expired DE546772C (en) | Thread tensioning device for cotton knitting machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE546772C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1020436B (en) * | 1953-03-23 | 1957-12-05 | Paul Lieberknecht | Thread tensioning device for flat weft knitting machines |
| FR2782098A1 (en) * | 1998-08-06 | 2000-02-11 | Dim Sa | Unit for the protection of elastic stretch yarns fed to a knitter has two blades in the yarn path with flexibility to nip the yarn between them and prevent yarn contraction after cutting |
-
0
- DE DENDAT546772D patent/DE546772C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1020436B (en) * | 1953-03-23 | 1957-12-05 | Paul Lieberknecht | Thread tensioning device for flat weft knitting machines |
| FR2782098A1 (en) * | 1998-08-06 | 2000-02-11 | Dim Sa | Unit for the protection of elastic stretch yarns fed to a knitter has two blades in the yarn path with flexibility to nip the yarn between them and prevent yarn contraction after cutting |
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