Textile mechanical device with automatic positioning function

Abstract

The invention relates to a textile mechanical device capable of automatic positioning. When the main motor drives the main shaft to slow down slowly under the control of the frequency converter, the bottom dead center sensor starts to detect the number of times the crank reaches the bottom dead center. When the number of points is less than 30 times per minute, under the control of the controller, the positioning gear controlled by the clutch is started, and the positioning gear starts to work; at the same time, when the bottom dead center sensor detects that the crank reaches the bottom dead center, the counting sensor starts to record the positioning The number of rotations of the gear, when the number of rotations of the positioning gear reaches a certain value, the controller starts the stop signal, and the frequency converter of the main motor stops. At this time, the crank just stops at the top dead center position, which plays the role of automatic positioning.

Description

technical field [0001] The invention belongs to the technical field of nonwoven machinery, and in particular relates to a textile machinery device capable of automatic positioning. Background technique [0002] Acupuncture machine is an important equipment in the production of non-woven fabrics. Its working principle is roughly that the main shaft drives the crank to rotate, so that the connecting rod reciprocates. When rotating, through the power transmission of the connecting rod, it drives the needle to puncture up and down on the fiber, so that the fibers are interlaced and coiled to form a nonwoven fabric with certain strength. When parking, especially during normal parking, due to the inertia of the equipment, the parking position of the needle loom is uncertain, which often causes the needles to still stay in the nonwoven fabric after parking, which is not conducive to cleaning and various tasks after parking. In this debugging work, sometimes improper operation will...

AI Technical Summary

Problems solved by technology

When parking, especially during normal parking, due to the inertia of the equipment, the parking position of the needle loom is uncertain, which often causes the needles to still stay in the nonwoven fabric after parking, which is not conducive to cleaning and various tasks after parking. A debugging work, sometimes improper operation will cause a large number of puncture needles to break, causing certain losses and affecting production

Chinese patent CN200810123338.0 discloses a synchronous brake device for high-speed needle looms. The device starts the parking device when the spindle speed of the needle loom is 200-300 revolutions per minute. This device requires specific brake shoes to clamp and brake. Disk, starting and stopping at such a high speed, for acupuncture machines, there are defects such as complex braking mechanism, short braking delay time, and high requirements for mechanical braking equipment, and if you choose 200-300 rpm Start and stop, there are risks such as large parking errors, which cannot fully meet the design requirements

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