Device and method for grabbing cop yarns by automatic doffing trolley

Abstract

The invention provides a device and a method for grabbing cop yarns by an automatic doffing trolley. The device comprises a grabbing device, a conveying device, a yarn cleaner and a yarn cleaner yarn guide plate. The device is characterized in that: the conveying device is a telescopic arm driven to stretch by an independent cylinder; the grabbing device comprises a yarn guide plate arranged at one end of the telescopic arm, scissors and a yarn gripper; a grabbing positioning plate is arranged on the yarn cleaner yarn guide plate; and a second sensor for detecting the original position of thegrabbing device, a third sensor for detecting that the grabbing device reaches the position of the grabbing positioning plate and a first sensor for detecting that the grabbing device reaches the position where yarns are accurately clamped and fixed by the big end of a bobbin winder support arm and a hollow bobbin are arranged at the rear part of the telescopic arm. The grabbing device grabs the yarns at the grabbing position above the yarn cleaner yarn guide plate, the yarns are not sheared, and a nozzle does not participate in the operation. The device has the advantages of simple and compact mechanical structure, small action amplitude, short stroke, convenience for debugging and convenience for maintenance. The position for grabbing the cop is reasonable; and the method is simple, short in flow and high in efficiency.

Description

technical field [0001] The present invention relates to a kind of textile machinery equipment and technology, especially relates to the doffing trolley configured by the fine-link automatic winding machine and the large yarn storehouse type automatic winding machine, specifically an automatic doffing trolley for grabbing bobbins and yarns devices and methods. Background technique [0002] The automatic doffing trolley is a kind of doffing equipment equipped on the automatic winding machine, and it is a necessary configuration on the fine-link automatic winding machine and the large yarn warehouse type automatic winding machine. It is an automatic doffing equipment selected according to user requirements on the basic type of automatic winding machine. The doffing trolley uses automatic equipment to replace manual doffing and manual unwinding, which improves the automation level of the automatic winding machine as a whole and can truly realize unmanned management of the works...

AI Technical Summary

Problems solved by technology

[0004] The yarn end of the existing doffing trolley is grasped by means of a movable chute, the yarn position is guided by a special yarn guide hook, and the yarn is cut by a special scissor arm. Continuously, there must be a special device to block the bobbin when unloading the bobbin. This series of actions are completed by a special mechanism. The mechanical structure is relatively complicated. Because each structure moves in space, the mutual cooperation between the actions is required, and debugging is difficult. high

In addition, the grabbing device of the doffing trolley is located below the bobbin suction nozzle, with a large range of motion and a long stroke. In order to improve the accuracy of the action, the corresponding high precision requirements for the doffing trolley are required; At this time, the yarn must be cut first, and the suction nozzle needs to cooperate to perform the action. The action is complicated and the efficiency is low.

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