DE2046149B

DE2046149B - Warp knitting machine with long weft device

Info

Publication number: DE2046149B
Application number: DE19702046149
Authority: DE
Inventors: Willi 6451 Dornigheim Suffner
Original assignee: Karl Mayer Textil Maschinenfabrik GmbH, 6053 Obertshausen
Filing date: 1970-09-18

Description

Patenansprüche:Patent claims:

1. Kettenwirkmaschine mit Langschußeinrichtung, bei der zum Antrieb der Schußfadenführer j ein Kurbelgetriebe vorgesehen ist, dadurch gekennzeichnet, daß auf der Welle(12) der mit dem Maschinenantrieb verbundenen Antriebskurbel (13), eine im umgekehrten Drehsinn wie die Antriebskurbel (13) antreibbare Zwischenkurbel (14) gelagert ist, auf der eine Koppel1. Warp knitting machine with long weft device, in which to drive the weft thread guide j a crank mechanism is provided, characterized in that on the shaft (12) the drive crank (13) connected to the machine drive, one in the opposite direction of rotation how the drive crank (13) drivable intermediate crank (14) is mounted on which a coupling

(15) gelagert ist, an der die Pleuelstange (6) angelenkt ist, und daß der Anlenkungspunkt der Pleuelstange (6) in der Antriebskurbei (13) längsgeführt ist.(15) is mounted on which the connecting rod (6) is articulated, and that the articulation point of the The connecting rod (6) is guided lengthways in the drive crank (13).

2. Kettenwirkmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebskurbel (13) und die Zwischenkurbel (14) von einer mit dem Maschinenantrieb verbundenen Welle (8) über ein Kegelradgetriebe in entgegengesetztem Drehsinn antreibbar sind.2. warp knitting machine according to claim 1, characterized in that the drive crank (13) and the intermediate crank (14) from a shaft (8) connected to the machine drive can be driven in opposite directions of rotation via a bevel gear.

3. Kettenwirkmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zwischenkurbel (14) durch einen Kreisexzenter gebildet ist und daß am freien Ende der Koppel (15) ein Gelenkbolzen (18) angeordnet ist, der an g einem Ende (20) mit der Pleuelstange (6) und am " anderen mit der Koppel (15) verbunden ist und einen Gleitstein (17) trägt, der in einer Kulisse3. Warp knitting machine according to claim 1 or 2, characterized in that the intermediate crank (14) is formed by a Kreisexzenter and that is disposed at the free end of the coupling (15) comprises a hinge pin (18) provided with at g an end (20) the connecting rod (6) and on the "other" is connected to the coupling (15) and carries a sliding block (17) which is in a setting

(16) der Antriebskurbel (13) läuft.(16) the drive crank (13) runs.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

The invention relates to a warp knitting machine with a long weft device in which to drive the Weft guide a crank mechanism is provided.

In the known warp knitting machines of this type, the connecting rod of the crank mechanism is at the end hinged to a crank. The course of the weft guide speed obtained with such an arrangement when moving from one end of the machine to the other does not meet the requirements, which are made with regard to the stress on the moving parts and thus the pace of work will.

The object of the invention is with a crank drive working firing devices to reduce the changing accelerations in the drive links, in order to achieve a smooth run or to be able to work at a higher speed.

This object is achieved according to the invention in that on the shaft with the machine drive connected drive crank an in the opposite direction of rotation as the drive crank drivable intermediate crank is mounted on which a coupling is mounted to which the connecting rod is articulated, and that the articulation point of the connecting rod is longitudinally guided in the drive crank. The pivot point describes an oval path in this arrangement. This will increase the acceleration at the reversal points the connecting rod is reduced without an excessive increase in the mechanical effort.

Preferred further embodiments of the invention emerge from the subclaims.

An exemplary embodiment of the invention is explained below with reference to the drawing. In this indicates

F i g. 1 is a schematic view of the crank mechanism a warp knitting machine according to the invention, FIG. 2 a section through the crank drive and F i g. 3 is a plan view of the crank drive.

The thread guides not shown in the drawing sit on a back and forth running belt 1, which is guided around the deflection pulley 2. On the axis 3 sits a pinion 4 with a toothed segment 5 combs. At the segment 5 engages the connecting rod 6 of the crank mechanism 7, which with the Machine drive is connected (F i g. 1). The shaft 8 coupled to the machine drive drives Via a bevel pinion 9, the two bevel gears 10 and 11 rotate in opposite directions (FIG. 2). With the bevel gear 10, the shaft 12 is firmly keyed, and it carries the drive crank at its other end 13. The bevel gear 11 is rotatably mounted on the shaft 12 and the circular eccentric at the other end trained intermediate crank 14 carries, on the circumference of which the coupling 15 is rotatably mounted. The drive crank 13 is equipped with a gate 16 in which the sliding block 17 runs, which carries a hinge pin. With one end 19 is the hinge pin connected to the coupling 15, while at the other end 20 the connecting rod 6 for driving the segment 5 according to FIG. 1 attacks. The intermediate crank 14 runs in the direction of arrow 21 and the drive crank 13 in the direction of arrow 22 to (Fig. 3). Since the coupling 15 is eccentric to the axis 23 of the shaft is mounted, the sliding block 17 and thus the articulation point migrates as the drive crank 13 rotates the connecting rod 6 in the link 16 of the drive crank 13 back and forth.