SU785388A1 - Pick finder to air-needle loom - Google Patents

Description

(54) DEVICE OF ROSEZK TIME TO THE MOBILE MOLDING MACHINE

I

This invention relates to a textile machinery industry, namely to a device for searching for times for a weaving rapier machine.

A time tracking device serves to reverse the weaving process when developing fabric and retrieving a pharynx with a defective weft thread. 1 (1

A device for searching for a weaving rapier machine is known, which contains “long end couplings mounted on a roll roller, one of which is kinematically connected with the mechanism of a formative machine, and 15 others with its main shaft, and having interconnected leading semi-coupling, kinematically associated with an electric motor and installed with the possibility of longitudinal movement L} and contact with the control lever I.

The disadvantage of this device is owner -. The fact that, when used on a pneumatic weaving loom, put the mechanisms in the forward direction of weaving into a position in which the rapiers completely come out of the pharynx, can only be carried out manually. This operation must not be performed. 30

Before switching on the tracing device to work in the opposite direction of weaving, since, if the rapiers are in the throat, they will interfere with the reverse weaving process, which will lead to breakage of the main threads.

In order to carry out the refinement process, it is necessary to rotate the main shaft of the machine using a flywheel.

In addition, these mechanisms have manual control of the second coupling halves from the handle.

A lot of time and effort is spent on these operations.

The aim of the invention is to increase; performance improvement and service improvement.

The goal is achieved in that the device has means for removing the foil from the pharynx, having an overrunning clutch for coupling the electric motor to the main shaft of the machine, a limit switch, the contacts of which are electrically connected to the electric motor, and a breaker fixed on the main shaft of the machine with possible contact. neither with the switch, when this overrun clutch is installed coaxially with the cam clutches, and the knowledge and the leader of the clutch coupling are rigidly connected with the corresponding clutch coupling clutch. The device also has an electromagnet in contact with the control lever. The drawing shows a device for searching the times. A cam clutch 2, consisting of the driven coupling half 3 fixed on the dial roller 1 and made together with an asterisk 4 for driving the yawning mechanism, and the driving roller is mounted on the knitting roller 1 of the weaving machine, which is associated with the mechanisms of formation and web set. coupling half 5. On the same roller, a single-turn cam clutch b is located, consisting of the driven coupling half 7, which is freely mounted on the roller 1 and is rigidly connected to the bevel gear 8, and the drive coupling half 9. the water of the throat rapier has an overrunning clutch, in which the leading coupling half 5 of the cam clutch 2 is its outer part and is connected with the driving half coupling 9, which is the outer part of the overrunning clutch, by means of spring-loaded rollers 1 The means for removing the rapier also includes the end a switch 11, the contacts of which are electrically connected to the electric motor 12, and a breaker 13 acting on any type of switch 11, for example, contactless, mounted on the main shaft 14 with the possibility of contact with the switch 11. Leading coupling halves 5 and 9 are mounted on a rollers with the possibility of joint longitudinal movement using the sliding key 15 Leading coupling half 5 of the cam clutch 2 is rigidly connected with gear 16, which engages with gear 17 and forms a gear, which Tyerstern 17 is mounted on the output shaft of the electric motor 12. The driving half coupling 5 also has an annular groove 18 into which the roller 19 of the three-arm lever 20 enters. The lever rotates around the axis 2i and the second arm is installed with potential contact with the core The .22, -a third shoulder, connected with the spring 23, is capable of contacting the limit switch 24. The driving coupling half 9 with a single-turn cam coupling 6 has a tooth 25, which, when it engages with the driven half coupling 7, into the groove 26. The conical gear 8 is engaged with a bevel gear 27 rigidly mounted on the main shaft 14 of the machine. The device works as follows. After stopping the machine when the weft thread is broken, pressing the DoFlka button, turn on the electric motor 12 and the electromagnet of the release mechanism (not shown). The motor 12 transmits the movement of the gear 17 in the forward direction of weaving, which rotates the leading coupling half through the gear 16. When the spring-loaded rollers 10 are jammed, the outer part (driving half-coupling 5) of the overrunning clutch rotates the inside (leading coupling half 9) in the same direction. The leading coupling half 9 of the single-turn cam coupling 6 by means of the tooth 25 located in the groove 26 transfers the rotation of the coupling half 7, which by means of bevel gears 8, 27 rotates the main shaft 14 of the machine and the rapier drive mechanism associated with it. The chopper 13 of the switch 11 turns off the electric motor 12. The slow rotation of the main shaft, which provides the electric motor 12 with the gears 16 and 17, allows the machine to be more accurately stopped in positions that are most favorable for finding the times in which the rapiers are removed from the throat. After that, pressing the Back button triggers the electromagnet 22 and the core of the electromagnet turns the three-arm arm 20 around the axis 21. At the same time, the lever arm with the roller 19 entering the annular groove 18 of the coupling half 5 removes the last engagement with the coupling half 7, i.e. disconnects to the main shaft of the machine and connects to the half coupling 3, which is made integral with the sprocket 4, through which the shedding mechanism is set in motion (not shown), and the other arm of the lever 20 contacts the end switch 24, which turns on the electric switch rodvigatel 12 to operate in the reverse direction of weaving. After that, as the electric motor 12 turns one half turn of the leading coupling half 5, 9 with half coupling 3, the leading coupling half 5, 9 return to its original position, since eub 25 coming out of the groove 26 will slide on the surface of the half coupling 7 and get into the groove 26 under the action of the spring 23 only after one revolution. The lever 20, returning to its original position, turns off the limit switch 24, which simultaneously turns off the electric motor 12. This operation is repeated until a defective refining thread is found. . During the operation of the machine, the movement of the shedding mechanism transmits the main shaft 14 of the machine through the conical neck

Claims (2)

Claim. 1. The device for searching once for a weaving rapier machine, comprising 30 cam end couplings mounted on a platen roller, one of which is kinematically connected with the yaw formation mechanism of the machine, and the other with its main shaft, and having interconnected driving halves, kinematically connected with electric motor and installed with the possibility of longitudinal movement and contacting with the control lever, characterized in that, in order to increase productivity and improve ease of maintenance, it has means o to withdraw the rapier from the throat, having an overrunning clutch for connecting the electric motor to the main shaft of the machine, a limit switch whose contacts are electrically connected to the electric motor, and a chopper mounted on the main shaft of the machine with the ability to contact the switch, while the overrunning clutch is installed coaxially to the cam clutch , and the driven and driving coupling halves are rigidly connected to the corresponding driving coupling halves of the cam couplings. 2. The device according to π. 1, characterized in that it has an electromagnet in contact with the control lever.