SU1548289A1 - Rotary dobby to loom - Google Patents

Abstract

The invention relates to weaving machinery, specifically, to devices for rotary helix carriages for weaving machines, and allows to simplify the design and increase the reliability of the carriage operation. The rotary helix carriage contains a shaft-rotor 6, drive blocks according to the number of remise, two spring-loaded keys 12 and 13, and an eccentric 4 for moving the remise, which is rigidly fixed on the ring 5 and has radial grooves located on the same line of symmetry with the radial grooves of the ring 5. The radial grooves have keys 12 and 13 that interact with the longitudinal grooves 7 of the rotor 6 during operation. Each plate 16 and 17 is made with full coverage of the ring 5 and has a wedge-shaped slot to interact with the governing body 25. 8 Il.

Description

Thebes 1

The invention relates to the textile, mechanical engineering industry, relating to the arrangement of heddle carriages for controlling the movement of the shaft movement mainly on shuttleless weaving machines.

The purpose of the invention is to simplify the design and increase reliability.

Fig „1 shows the carriage in the lower position of the shaft, general view; in fig. 2 - the same, with the upper position of the remise; in fig. 3 - carriage device, axonometric; in fig. 4 - the same, the original position; FIG. 5 is the same when the key is engaged with the rotor shaft; in fig. 6 - the same, the working position at the moment of coupling of the second one; in fig. 7 - the same at the moment of unlocking the first key; in fig. 8 is a section A-A in FIG. five

The rotational heddle-slide carriage (Fig. 1) contains a remise 1 connected via a lever mechanism 2 to a connecting rod 3 "which is located on the eccentric 4 (Fig. 3) rigidly fixed on the ring 5 mounted on the rotor-shaft 6 having two longitudinal diameters groove 7.

The eccentric 4 and ring 5 have radial grooves 8 and 9, respectively, and on the ring 5 they are made open at both ends. In the radial grooves 9 of the ring 5 there are blind holes 10 in which the springs 11 are installed (the second spring is not shown).

The keys 12 and 13 are U-shaped and are installed in the radial grooves 9 of the ring 5 and have a wedge 14 on one side for engagement with the longitudinal slots 7 of the rotor shaft 6, and on the other hand the cylindrical surface 15.

On the ring 5 at both ends of the eccentric 4 plates 16 and 17 are installed, which completely cover the ring 5 with a wedge-shaped slot 18. The plates 16 and 17 on the inner side have a cylindrical groove 19, coaxial with the rotor shaft 6, and a notch 20, made with a symmetrically wedge-shaped slot 18 and having a radius of curvature smaller than the radius of the ring 5. On the outer side, the plates 16 and 17 are provided with ears 21, in which holes 22 are made along the symmetry axis of the wedge-shaped slot 18 and the cylindrical groove 19. The plates 16 and 17 are rigidly connected to the body

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a grid (not shown) by means of axles 23 mounted in holes 22.

On axle 23 between the sectors 16 and 17, spacer rings 24 are installed.

The keys 12 and 13 are connected to a programming device (not shown) by means of the control body 25, the working end of which has the shape of a wedge 26, cut from the end, for interaction with the cylindrical surface 15 of the keys 12 and 13. And the internal contour in the control body 25 is made groove 27 for the passage of the connecting rod 3 and the eccentric 4a. The control body 25 is located in the wedge-shaped slots 18 of the plates 16 and 17.

The carriage works as follows.

Shaft-rotor 6 receives rotation from a drive (not shown), which periodically changes its gate speed, having two full stops per revolution at 0 and 180 °.

A few degrees before the shaft-rotor 6 stops completely from the program mechanism to the control body 25, the commands Coupling or Uncoupling are given (these commands correspond to the presence or absence of holes in the punched tape of the programming device).

In the initial position (Fig. 1), the release 1 is at the bottom. In this position, it is fixed by the key 12 (FIG. 4), which is placed in the wedge-shaped slot 18 of the plates 16 and 17. The springs 11 prevent the coupling of the keys 12 and 13 with the longitudinal grooves 7 of the rotor-shaft 6.

In accordance with the cyclic diagram of the operation of the weaving machine, if there is a programming device in the punched tape, a command is issued to the control body 25. The control body 25 begins to press on the cylindrical surface 15 of the key 12. This occurs at the moment when the longitudinal groove 7 of the shaft of the rotor 6 begins to align with the radial grooves 9 of the ring 5 and, overcoming the resistance of the spring 11, smoothly turns the key 14 of the key 12 into the longitudinal groove 7 of the shaft-rotor 6. When the latter makes a complete stop, the wedge 14 of the key 12 will fully engage with the longitudinal groove 7 of the shaft of the rotor 6 (Fig. 5). The control body 25 will also fully engage with the wedge-shaped notches of 18 sectors with its wedge part 26.

16 and 17 and prevents the uncoupling of the wedge 14 of the key 12 with the longitudinal groove 7 of the shaft-rotor 6 until the key 12, carried away by the shaft-rotor 6, covers its cylindrical surface 15 under the internal cylindrical grooves 19 sectors 16 and

17 and begin to slide on them. Only after that the control body 25 will be released from the engagement with the wedge-shaped slots 18 and will return to its original position (Fig. 6).

The inner cylindrical grooves 19 of the plates 16 and 17 prevent the wedge 14 from disengaging the keys 12 with the longitudinal groove 7 of the shaft-rotor 6. The latter, transmitting its movement to the key 12, begins to rotate the ring 5 with the eccentric 4 and the connecting rod 3. In turn, the connecting rod 3 transmits movement through the lever mechanism remise 1 (Fig. 1).

At this time, the key 13, which rotates synchronously with the key 12, is in a disengaged state with the rotor shaft 6 until the shaft 12 transmits the key 12 movement, and its coupling with the rotor shaft 6 begins several degrees before the shaft rotates. - rotor 6 at 90 °. In this case, the cylindrical surface 15 keys

13 connects to the notches 20 of the sectors 16 and 17 and smoothly goes under the internal cylindrical grooves 19 of the plates 16 and 17, and its wedge part

14 engages with the longitudinal groove 7 of the rotor shaft 6. At the moment when the rotor shaft rotates 90 °, both keys will engage with it. During its subsequent rotation, the key 12 leaves its wedge 14 out of engagement with the longitudinal groove 7 of the shaft-rotor 6 under the force of the spring 11 (Fig. 7), and the wedge 14 continues to transmit motion from the shaft-rotor 6 along the entire kinematic chain of the remise 1 to lift tying it to the upper position by S (Fig. 2).

If until the moment when Remise 1 rises to its upper position, the Disengagement command is sent to the control body 25 from the program mechanism, the control body 25 does not prevent the key 13 from disengaging from the rotor shaft 6. And as soon as the key 13 equals wedge-shaped mi 18 sectors 16 and 17,

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Under the force of the spring 11 and the force of the shaft movement, which acts on the wedge part 14 of the key 13 from the shaft-rotor 6, the key 13 will enter the wedge-shaped slot 18 and fix the heald in the upper position. Since both keys are in the disengaged state with the longitudinal grooves 7 of the shaft-rotor 6 (Fig. 4), there is a heave in the upper position.

If the Coupling command comes from the program mechanism to the control body 25 until the moment of lifting 1 rises to the top position, the control body 25 will engage its wedge part 26 in the wedge-shaped slots 16 of sectors 16 and 17 and prevent

clinging the spline 13 to the rotor shaft 6. The pins 12 and 13, alternately transmitting movement from the shaft 6 of the rotor 6 throughout the kinematic chain of the remise 1, lower it to the lower position in the reverse position in the upper position. And as soon as the key 12 is equal to the wedge-shaped slots 18 of sectors 16 and 17 and the control body 25 does not interfere with the disengagement of the key 12 with the rotor shaft 6, it will go into the wedge-shaped slots 18 and fix the helix 1 in the lower position. Completed a complete cycle of yawning. The system is shown in

5 the initial position. (Fig. 4). I

The present invention allows to simplify the design of the carriage and increase its reliability compared to

It is known by reducing the multilink, increasing the rigidity, the manufacturability of parts.

In addition, the overall dimensions are reduced due to the fact that the eccentrics are mounted on the rings. This, in

turn, reflected on the metal structure.

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Claims (1)

Invention Formula A rotary helix carriage to a weaving machine, containing a shaft-rotor associated with a drive, having two longitudinal diametrically arranged grooves and driving blocks according to the number of heaps, each of which has a ring freely mounted on the rotor-shaft, two radial grooves are installed in its radial grooves. keys, kinematically connected by means of a control unit to a programming device, an eccentric device, kinematically connected to a helix, and two plates rigidly connected to the carriage body, which, by means of cylindrical grooves, are freely installed at the ends of the ring and provided with Wedge-shaped slots for interacting the control body with the keys And they have conjugate with grooves for precise smooth engagement and disengagement of the keys with the rotor shaft diametrically grooved radial grooves with a radius of cr curvature 0 which is smaller than the groove radius, which is due to the fact that, in order to simplify the construction and increase reliability, the eccentric is rigidly fixed on the ring symmetrically relative to its ends and placed between the plates, the radial grooves of the ring are located on both its ends and the eccentric, the keys are U-shaped for placement in the ring grooves and a cylindrical surface for interacting with cylindrical grooves and recesses of plates that are completely encircling the ring. V / Schig.g Sh.E 13 P sixteen f No 2B 5, 7 "v 20 go .