Automatic replacement device for multi-color bottom lines for computerized embroidery machine

Abstract

The invention relates to an automatic replacement device for multi-color bottom lines for a computerized embroidery machine. The device is provided with a transmission belt, a guide track and a position-limiting plate, which are parallel to each other, on a vertical mounting baseplate, a rotary shuttle box base equipped with a rotary shuttle box is fixedly arranged on a machine body of the embroidery machine, and the device is provided with a shuttle peg mobile access mechanism, which is in chimeric position-limiting sliding connection with the guide track through a pulley, fixedly connected with the transmission belt through a shuttle taking position-limiting plate and in contact connection with the left side edge of the position-limiting plate through a position-limiting shaft wheel respectively; the device is provided with a shuttle sending mechanism, a shuttle sending pulley seat is equipped with a shuttle sending pulley, as well as an upper driving mechanism and a lower driving mechanism thereof, the shuttle sending pulley is equipped with a split type standby shuttle row, and the shuttle sending pulley seat is fixed on the mounting baseplate through a mounting block. The device has simple structure, and can smoothly transmit a standby bottom line shuttle peg and correctly place on the rotary shuttle box, fully meet the requirements of replacing matching multi-color bottom lines of multi-color double-sided embroidery exceeding 10 colors, further improve the production efficiency of equipment and upgrade the quality grade of products.

Description

technical field [0001] The invention relates to the technical field of computer embroidery bobbin thread supply, in particular to an automatic multi-color bobbin thread replacement device for a computerized embroidery machine. Background technique [0002] A bobbin automatic exchanging device disclosed in the Chinese Invention Patent Bulletin, its publication number is CN 1795299A, it is provided with a bobbin transmission mechanism capable of rectilinear and horizontal reciprocating movement, when the claws on the transmission mechanism hold the bobbin from the embroidery machine After the unloaded bobbin with the end of the bobbin thread is clamped by the rotary hook box of the head, the bobbin transmission mechanism moves in a straight line in the opposite direction, and drives the bobbin claw back and rotates 180° clockwise through the torsion spring connected with the bobbin claw. During this period, the claws remove the empty bobbin; when it turns to the bobbin storage...

AI Technical Summary

Problems solved by technology

[0003] This device has the following disadvantages: first, the movement of the moving parts is relatively complicated, which makes the structure of the device complex, and the requirements for the accuracy of the equipment, automatic control system, use, and maintenance are also high; secondly, the stroke of the moving parts is changeable, especially the bobbin card. The arc movement of the jaws, due to high-speed movement and the action of gravity and centrifugal force, affects the clamping force between the jaws and the bobbin, especially when there is slight wear and deformation of the jaws and the bobbin after a long time, the clamping In severe cases, the bobbin will fall off, at least it will cause the bobbin to be loose and skewed in the inner cavity of the fixture, so that the bobbin cannot be accurately loaded into the hook box

Owing to realizing the automatic change of multi-color bottom thread must be equipped with the spare bobbin of sufficient color kind bottom thread in the bobbin storer, and existing bobbin bobbin automatic changing device, even if adopt the bobbin storer of disc type class, although can Place many spare bobbins, but the quantity is limited (actually 4 to 6). If you want to increase the number of spare bobbins, you must increase the diameter of the disc, but because the bobbin storage devices are fixed on the On the bobbin exchange device, both the installation space of the machine and the working space of the operator are narrower, which is actually difficult to realize; if the diameter of the disc is not increased, the number of times to replenish the spare bobbin needs to be increased, because the spare bobbin The bobbin storage device is fixed under the embroidery machine table, replenishing a large number of bobbins each time or frequently replenishing bobbins will greatly increase the heavy labor of the operator, and ultimately reduce the production efficiency of the equipment

Images