Roller assembly for high-speed chenille machine

Abstract

The invention discloses a roller assembly stable in traction and used for a high-speed chenille machine. The roller assembly comprises a rack, wherein a central thread roller is rotatably arranged atthe upper portion of the rack, an upper synchronous belt wheel is arranged at the end of one side of a roller shaft of the central thread roller, a pair of pressurizing rollers matched with the central thread roller is arranged on the rack through a connecting base, a stepping motor is arranged at the lower portion of the rack and is connected with a transmission box body, two horizontal driving shafts perpendicular to the central thread roller are arranged in the transmission box body, hollow swing arm seats are rotatably arranged at the ends, extending out of the transmission box, of the horizontal driving shafts through bearings, driving gears are arranged on the horizontal driving shafts, a pair of transition gears is rotatably arranged above the driving gears in the swing arm seats, output shafts penetrate into the upper portions of the swing arm seats, driven gears are arranged on the output shafts, output rollers are arranged at the ends, extending out of the swing arm seats, ofthe output shafts, the other end of each output shaft is sleeved with a fine adjustment mechanism for adjusting the axial position of the output shaft, a high-speed motor is arranged on the rack, anda rotary disc is arranged at the end of a power output shaft of the high-speed motor.

Description

technical field [0001] The invention relates to a device for weaving chenille yarns, in particular to a roller assembly for a high-speed chenille machine. Background technique [0002] The yarn forming principle of the chenille machine is as follows: the high-speed rotating disc continuously winds the velvet yarn to the upper part of the inverted triangular cutting distance sheet to form a velvet yarn coil, and then the velvet yarn coil is pressed on the cutting distance The blade is driven downward by two rotating output rollers. Since the distance blade is welded and fixed by two symmetrical half blades to form a "herringbone" shape, a straight blade that reciprocates back and forth is installed in the middle of the "herringbone" shape. The velvet yarn coil is cut into two halves by the blade during the downward process, and then clamped by two core wires respectively, and then twisted by the twisting system to form a complete chenille yarn. [0003] In the existing rolle...

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Problems solved by technology

[0003] In the existing roller assembly mechanism, the core wire roller is set behind the side of the output roller away from the operating surface, the motor drives the output roller through the universal joint, and the support of the roller shaft of the output roller is provided by a single-sided composite bearing. It is relatively low, so the output roller jumps a lot when it rotates, which affects the quality of the yarn

And because the core wire roller is relatively behind and far away from the operation surface, the operation is not very convenient, which affects the operation speed

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