SU742501A1 - Apparatus for controlling thread guides of circular hosiery-knitting machine - Google Patents

Description

The invention relates to knitwear engineering, and more specifically, to a device for controlling the thread of a v-shaped automatic machine driver. A device for controlling the operation of patterned drums is known, which contains a software drum equipped with control tracks, a ratchet mechanism and a mechanism for blocking the pushes of a program drum, and the number of control tracks software drum corresponds to the number of controlled bodies 1. However, the field of application of this device is limited to use only for controlling drawings and drums, and it cannot be used to control the operation of other working parts of the machine, for example, to control the operation of the thread guides. In addition, it is not compact, and the presence of its own separate water mechanism complicates the kinematics of the round-broom automaton as a whole. The closest technical entity to the present invention is a device for controlling yarn feeders of the round bale automatic machine, containing kinematically associated with yarn feeders and mounted on the axis cam washers paired on and off ratchets, drive frame with paws, installed with the possibility of oscillating motion and contacting with ratchets included, a comb dog pivotally mounted on the drive frame, the teeth of which are located at the level of the switching ratchets Alik and mounted on the same axis with the dogs and in contact with the control roller a lever for locking the comb dog 1G. However, the field of application of this device is limited to use only for controlling yarns, and it cannot be used to control the operation of other working elements of the machine, for example, to control the operation of patterned drums. The purpose of the invention is to expand the technological capabilities of the device. This goal is achieved in that the device additionally contains a software drum equipped with control tracks and a finger mounted on the same axis with cam washers, a ratchet mechanism mounted on the same axis with the pawns in contact with the engaging ratchets, the blocking mechanism of the pushes of the software drum made in the form bushings mounted on the control roller with the possibility of its axial movement and contact with the ratchet pawl of the program drum, and pivotally Becoming dvuhplechy lever, one shoulder in contact with the sleeve, and the other - with a finger drum software, the number of control tracks. . software drum corresponds to the number of controlled bodies.

FIG. 1 shows the proposed device in the off position nporpeiNtMHoro drum, top view; Fig 2 is the same, cross section; in fig. 3 - the position of the double-arm lever and the control sleeve when the drum nporpaNMHoro is moved to the initial position.

The device for controlling the yarn feeders of the circular machine is mounted in the housing 1, on the sleeves 2 and 3 of which the axis 4 is fixed, kept from turning by the anvil 5 On the axis 4, the program drum b and blocks 7, 1e of which include and are installed, rotate. Cut-off ratchets, paired with cam washers.

The software drum 6 has control tracks with removable cams 8 with which the levers 9 contact, connected by means of cables 10 with patterning mechanisms (not shown).

The number of control tracks of the drum 6 corresponds to the number of patterned drums on the round-bowed Mclina.

A ratchet 11 with six evenly spaced teeth and a finger 12 located on the end surface are connected to the drum b.

The brake discs 13 are located between the drum b and the block 7, as well as between the adjacent blocks 7. The drum b and the block 7 are preloaded by the spring 14, preventing the inertial rotation of the drum and the blocks. The preload force of the spring 14 is adjusted by a nut 15. In the case 1, a control roller 16 passes, on which a control sleeve 17 is installed, having flanges 18, 19 and grooves 20, 21.

The roller 16 and the sleeve 17 is spring-loaded springs (not shown). By means of levers (not shown in the drawing), the sleeve 17 and the roller 16 are kinematically connected with the counting circuit. (not shown), which has links, with dies.

On sleeves 2 and 3, a frame 22 is placed, making a swinging motion and carrying the axis 23.

Through the ti 24, sitting on the axis 23, the frame receives a swinging movement. The axis 23 carries the dogs 25, which interact with the ratchets of the blocks 7 which are turned on, and the dogs 26, which interact with their shoulder 27 with the ratchet 11, and with the shoulder 28 with the control sleeve 17.

The dogs 25 and 26 are pressed against the corresponding ratchets by means of a spring 29.

A comb dog (not shown in the drawing), which interacts with the switching off ratchets of blocks 7, is hinged on the drive frame.

With dogs 25 and 26 on one axis, a lever for locking a comb dog (not shown in the drawing) is in contact with the control roller 16.

In housing 1, an axis 30 passes, on which a double-shouldered lever 31 is movably mounted. The arm 32 of the lever 31 is pressed against the control sleeve 17 by the spring 33, and the arm 34 can contact the finger 12 of the program drum 6.

The device works as follows.

In the initial position, the control sleeve 17 is tucked into the housing 1, ple ... cho 28 of the pawl 26, contacts the cylindrical surface of its collar 18, and the shoulder 27 is disengaged from the ratchet I.

The shoulder 32 of the double-arm lever 31 is pressed against the cylindrical surface of the collar 19 of the control sleeve 17, and the shoulder 34 is moved out of the interaction zone with the finger 12. The latter is located behind the shoulder 34 during rotation of the ratchet 11 at a distance approximately equal to half of the angle of rotation of the ratchet 11 for one pushing .

By means of a lever interacting with the die on the link of the counter chain, the sleeve 17 moves in the direction of arrow B to the distance at which the shoulder 28 of the pawl 26 turns against the groove 20 on the sleeve 17 and sinks into this groove, and the shoulder 27 lowers onto the ratchet 11. Shoulder 32 of the lever 31 continues to contact with the cylindrical surface of the collar 19. With the next oscillation of the drive frame 22, the pawl 26 engages with the ratchet 11 and turns the program drum 6 one step.

Claims (2)

The software drum 6 by the cams 8 acts on the levers 9, which turn the patterned drums on or off. After performing the control operation, the hinge interacting with the plate on the link of the counting circuit comes off the plate, and the control sleeve 17 returns to its original position under the action of the spring, Depending on the program for controlling the work of the patterned drums, we define a set of plates on the eve. x counting circuit, the pawl 26 pushes the storage stick 11 by the required number of steps. After completing the program of controlling the patterned drums, the drum 6 must be brought in. initial starting position. For this purpose, by means of a lever interacting with a plate on the star of a non-counting chain, the sleeve 17 moves in the direction of arrow B to the distance at which the arm 32 lever 31 faces the groove 21 and sinks into it, thereby blocking the sleeve 17 position The shoulder 34 of the lever 31 enters at the interaction zone with the finger 12, and the shoulder 28 of the pawl 26 is located in the groove 20. During the next oscillation of the driving frame 22, the pawl 26 engages with the ratchet 11 and pushes it. Since the control sleeve 17 is fixed against axial movement by the arm 32 of the lever 31, the dog 26 will push the ratchet 11 until the finger 12 comes into contact with the shoulder 34, When the finger 12 comes in contact with the shoulder 34 of the lever 31, This deflects it and thereby removes the shoulder 32 from the groove 21. Under the action of the spring, the control sleeve 17 returns to its original position. At the same time, the program drum occupies the initial starting position. In the next item, the cycle of operation of the device is repeated. Thus, a device for a circular-blender machine yarn provides for expanding technological capabilities by increasing the number of controllable working elements of the machine, as well as simplifying the kinematics, increasing compactness, and facilitating installation, debugging, and maintenance during operation. An apparatus for controlling a yarn machine of a circularly-automatic machine, comprising kinematically connected with yarn feeders and cam washers mounted on an axis, paired on and off ratchets, a drive frame with paws, mounted with the possibility of oscillatory motion and contacting including ratchets, hingedly attached beater, a hinged pin. comb dog, the teeth of which are located at the level of including ratchets, control roller and mounted on the same axis with dogs and to A lever for locking a comb-like pawl, which acts with a 1-shaft control roller, characterized in that, in order to expand its technological capabilities, it additionally contains a software drum, fitted with control tracks and a finger mounted on the same axis with cam discs, a ratchet mechanism mounted on one axes with dogs in contact with engaging ratchets, a mechanism for blocking the pushes of a software drum, made in the form of a sleeve mounted on a control roller with the possibility of e sowing and a ratchet mechanism of the software drum in contact with the pawl, and a double-arm hinge-mounted lever in contact with the sleeve with one n and the other with the finger of the software drum, the number of control tracks of the program drum. Sources of information taken into account in the examination 1, Patent Czechoslovakia 110703, NAT, CL. 25 a, 27, pub. 1964. 2. USSR author's certificate №517671, cl. D 04 B 15/58, published 1975 (prototype).