SU143696A1 - Cartridge charging device for rewinder - Google Patents

Description

A device is known for charging cassettes on weft rewinders, which includes an insertion mechanism for an inlet cassette made in the form of an inclined feed tray and a pivot arm that oscillates from the cam eccentric and hinged linkage of the system, the mechanism for clamping the ends of the weft threads and the mechanism switching spools in rows of cassettes, made in the form of a rotary valve mounted inside an inclined feed tray.

The described device, including the known components and mechanisms, is a further improvement, simplifies the design and contributes to increased productivity, thanks to the fact that it is equipped with a mechanism for signaling and a self-stopping spindle with a fully charged cassette, made in the form of interacting with two dogs and driven rotation from the change mechanism of the automatic gear of the toothed disk, carrying a cam attached to it, which after rotating the disk at a given angle interacts with the contact a volume for supplying a light signal and interrupting the power supply circuit of the automatic motor of the automaton.

The mechanism for clamping weft threads is made in the form of two groups of figured plates assembled in packages, mounted under the winding head, of which one group is fixed and the second is movable around a vertical axis.

FIG. 1 shows a schematic of a cassette charging device; in fig. 2 - scheme of the mechanism for clamping weft threads; in fig. 3 - the mechanism for signaling and self-stopping spindles.

The device for charging the cassettes includes the mechanism of the spool tab in the cassette (Fig. 1), which is designed as an inclined feed tray / with cheeks 5 attached to it in the lower part,

No. 143G96-2 between which ridge J is divided, dividing the distance between descents into two equal parts. The cheeks .2 and the ridge 3 form a place for installing the cassettes - held by the grip. For the tab spools 5 serves as a rotary, (; swinging from cam eccentric 7 and articulated link system: the eccentric V is seated on va / g and is single-turn clutch 9 with the help of a pawl 10, which is a coupling 11 with 11 with the slide lever 12. The insertion mechanism is turned on from the spindle during the change of the spool. The rotation of the shaft 8 is communicated via a gearbox (not shown) from the electric motor of the automaton.

The mechanism for switching the spools 5 along rows of cassettes 4 is made in the form of a rotary valve 13 mounted inside an inclined feed tray /. To rotate the valve 13 serves as a lever 14, which, when the pivoting lever 6 is raised, is raised by an abutment 15 fixed to the lever 6.

The mechanism for clamping weft yarns 16 (FIG. 2) is made in the form of two figured plates 17 and 18 assembled in a package mounted under a winding head, of which the group of plates 17 is fixed, and the second group 18 is movable around the vertical axis 19.

The signaling mechanism and the self-stopping spindle (Fig. 3), when the cassette 4 is fully charged, is mounted on the bracket 20 and is designed as a toothed disk 21 interacting with two pawls 22 and 23 that are acted upon by a finger fixed on the lever 24. The lever is actuated from the mechanism of change of the automatic machine spool. The gear disk 21 carries (fixed on it) the cam 25, which, after turning the disk to a predetermined angle, interacts with the contact 26 to supply a light signal and interrupt the electric supply circuit of the automatic motor electric motor.

The operation of the device during charging kaseet occurs as follows.

At the time of the change of the spool from the core shaft, the articulated-link system 12 - // is activated, which, using the 1G pawl, turns on a one-turn clutch 9, as a result of which the eccentric 7, seated on the shaft 8, actuates the rotary lever 6, which inserts the rotary lever 5 into the cassette 4. When lifting the lever 6, the anchor 15 fixed on it rests against the tip of the lever 14, which at the same time turns the valve 13, ensuring that the next spool enters the second cassette 4. With the next raising of the lever 6, the valve 13 moves again and the spool 5 takes place in ne 4 cassette.

At that time, when the reeled chip 5 falls along the inclined feed tray / and the thread 16, coming from it, is clamped between the spindle and the newly installed empty shaft, scissors cut into action and the movable plates 18, which rotate around the vertical axis 19, the end of the thread 16 is inserted into the spaces between the fixed plates 17. The thread is bent and when the movable plates 18 are retracted from the fixed plates 17 the thread, due to friction, is securely fixed in the fixed plates 17.

Thus, the threads are wound from all spools until the cartridge 4 is completely filled. The worker, removing the cassette with one hand, easily removes the bundle of the ends of the threads from the fixed plates with the other hand.

When the cassette 4 is fully charged, the mechanism for signaling and the self-stop spindle come into operation from the spool changing mechanism.

The finger 24 of the lever acts on the pawl 22 and on the upper shoulder of the pawl 23. It finally disengages from the gear disc 21 and the spring 27 rotates the disc 21 by one tooth. As the disc 2 turns, the cam 25 approaches the contact 26. After inserting the penultimate spool, the cam 25 closes the circuit with a light signal. After insertion into the cassette 4 of the last spool 5, the spindle of the rewinding head is automatically turned off.

The industrial utility of this proposal was confirmed by the All-Union Scientific Research Institute of Light and Textile Machinery, according to the conclusion of which the proposed cassette charging device should be used to modernize the existing fleet of vehicles.

Subject invention

Claims (2)

1. A device for charging the cassettes on the weft rewinder, including a spool insert mechanism in the cassette, made in the form of an inclined feeding tray and a pivot arm that oscillates from the cam eccentric and hinge-and-pinion system, the mechanism for clamping the ends of the weft threads and the mechanism for switching spools along rows of cassettes made in the form of a rotary valve mounted inside an inclined feed tray, characterized in that, in order to simplify the design and increase productivity ore, it is equipped with a mechanism for signaling and a self-stopping spindle when the cassette is fully charged, made in the form of a gear interacting with two dogs and rotated from the mechanism for changing the spool of an automatic gear disk carrying a cam attached to it, which, after turning the dial at a predetermined angle, interacts with a contact for supplying a light signal and interrupting the electric supply circuit of the electric motor of the automaton. 2. The device according to claim 1, characterized in that the mechanism for clamping weft threads is made in the form of two groups of figured plates assembled in packages, mounted under the winding head, of which one group is fixed and the second is movable around the vertical axis. - 3-№ 143696 corner 17 f nineteen I / /