SU134365A1 - Ploskofangov, semi-automatic machine - Google Patents

Description

The known flat-fang semi-automatic machine is equipped with a movable locking carriage, a needle increase mechanism, a mechanism for varying the stroke of the locking carriage with two movable stops, a rear needle shift mechanism and a yarn change mechanism.

The described flat-fang semi-automatic machine allows to reduce the consumption of raw materials, as well as to increase productivity. This is achieved by the fact that the actuators are equipped with additional drums that can be turned by electromagnetic drives; their ratchets are mounted on drums, which are included from the contacts which are closed by the locking carriage in its end positions.

The typesetting drums of the needle increase and the change in width of the carriage stroke are placed on a common roller and controlled by one electromagnetic drive, and each of the stops of the mechanism for changing the stroke width of the carriage is connected, for example, with an endless chain, the driving sprockets of which are mounted on the roller of the combination drums.

The drawing shows a kinematic diagram of a flat-panel semi-automatic machine.

The design of the machine includes a drive equipped with an electric motor 1, transmitting by means of a V-belt transmission 2 the rotation of the alternately activated electromagnetic clutches 3, which through the driving sprockets 4 of the chains 5 transmit the intermediate carriage 5 connected to one chain in the upper branch, on the other branch in the lower one, which, by means of a spring-loaded stop 7, via a rotary cam 8, seated on the axis 9 and held by the latches 10, transmits movement to the lock carriage //, the stroke of which depends on the position of the 12 p gate 13 stops interacting with the jacks 14 fixed to the carriage 6. Turn pro.mezhutochnoy schtangu C- 12 fixed to the cams 15. It acting on the button switches 16, which supply

№ 134365 .2

electrical pulses: one into the power supply circuit of the electromagnetic clutches 3, the other into the power supply circuit of the electromagnets of the drives: counters 17, the shift mechanism of the needle bed 18, the mechanism for adding needles and changing the stroke width of the carriage 19, the change mechanism of the yarn feeders 20;

the mechanism for changing the width of the carriage stroke is provided with sliders 21 that act on the pivoting stops, fixed on chains 22, set in motion through sprockets 25 from the handwheels 24 or automatically from the electromagnet carriage 19 through the lever 25, pawls 26, turning ratchets 27 and splicing connected to them drums 28 and locking discs 29. In the absence of dies 30 on composing drums 28 of pawl 31, enter into engagement with the ratchet wheels 32, rotate them and move the engines 21 connected to them through sprockets 23 chains 22;

the needle increase mechanism is provided with an extension device 33, pivoted on the axis 34, mounted on the lock carriage 11, and an emphasis placed in the working position. 35, retractable by a spring 36, which operates in the absence of a die 57 on the diaphragm, which allows the lever 38 to move, and 39 and the lever 40, hinged on the stop 35.

The mechanism for changing thread guides is equipped with yarn guides 42 that can be moved along guides, selectively actuated by stops 43 of the lock carriage 11, pushers 44 with spring-loaded latches-5, which can be moved by projections of levers 45 when they are pressed into grooves 47 of the diaphragm of the yarn feeders 20 turned by electromagnet 20 gu 49, lever 50, pawl 5 /, and a ratchet wheel 52 n mounted on the right slider 21 moved along the rod 12, which is connected to the yarn feeder carriage 53 coupled to the yarn feeders 42 with a finger 54, a protrusion 55 of the hook 56 turning on the axis 57 when the stop 43 is applied to its shoulder 58, is thus provided, at any stroke width, the thread guides stop at their carriage and the next yarn feeder is seated by the stop turning the thread guide from the carriage when grabbing the hook over its shoulder.

The rear needle bar shift mechanism is provided with rollers 60 connected to the rear needle bar 59, which are applied to the jackets 61 of the drum 62, driven by the ratchet 63 through the dog 64, and the rear needle bar electromagnet 65.

Six counters 66 driven by an electromagnet of counters 17 through the dog 67, ratchet 68 and gear 69 when the number tuned to them is affected by their cams 70 on the corresponding microswitches 71, automatically turning on and off the shift mechanism, the mechanism for adding needles and changing the width of the carriage stroke and the mechanism thread changers;

The breaks rewinding mechanism is provided with a shchikov 72 fixed on the shaft of the electromagnetic sleeves 3, transmitting rotation through the V-belt drive 75 of the folding drum 74 with the cone 75 pressed against it, on which the spool is wound to wind the unraveling rejected web on it.

Electromagnetic brake 76 of the lock carriage 11 acts on the electromagnet 77 when the motor 7 of the machine is off.

Subject matter

A semi-automatic semi-automatic machine equipped with a movable locking carriage, a needle increase mechanism, a mechanism for changing the stroke of the locking carriage with two movable stops, a rear needle shift mechanism, and a yarn change mechanism, which is different