SU1222725A1 - Loom drive - Google Patents

Description

The invention relates to textile mechanical engineering and can be used on shuttleless machines.

The purpose of the invention is to improve the ease of maintenance of the loom.

FIG. 1 is a diagram of the drive of the weaving machine; in fig. 2 is a view A of FIG. 1J in FIG. 3 shows the relative position of the main shaft position sensor at the start of braking and the additional rotation of the main shaft of the machine; in fig. 4 - the same, when stopping the machine after an additional rotation of the main shaft of the machine.

The drive of the weaving machine comprises an electric motor 1, kinematically coupled by means of a V-belt transmission 2 of an electromagnetic clutch, consisting of a pulley 3, a stator cup 4 and a disk 5 mounted on the drive shaft 6, and a cylindrical gear 7 and 8 with a main gear. shaft 9 of the machine. The spring 10 serves to brake the electr. magnetic clutch. Rapiers 11 and 12 receive a reciprocating motion from the main shaft 9. through a bevel gear 13 and the planetary mechanism 14 (Fig. 1).

The electric motor 1 and the electromagnetic clutch are connected via an electrical circuit to a unit (not shown) of the drive control, which contains such electrical mechanisms as the weaver controller, the main observer, and the machine start and stop button.

The means of additional rotation of the main shaft 9 of the machine is located on the left side of the machine (Fig. 1) and contains an electric motor 15, reducing the worm gear 16 and an overrunning clutch 17 rigidly mounted on the transverse shaft 18 connected through the bevel gear 19 to the main shaft 9 of the machine (Fig. 2).

The drive control unit is additionally equipped with a position sensor of the main shaft of the machine, implemented as a sector 20 mounted on the transverse shaft 18, and a proximity switch 21 mounted on the fixed part of the machine. Sector 20 rotates with transverse shaft 18.

When the machine starts up, the stator winding of the electromagnetic clutch is fed

227252

current. The stator cup 4, connected to the pulley 3, receiving rotation from the electric motor 1, transmits torque through a friction pair

the disk 5 and the drive shaft 6, which, by means of the cylindrical gear 7 and 8, transmits the torque to the main shaft 9 of the machine. The machine is in operation.

0 If the weaving process is disturbed or if the weaver stops the machine, the signal from the drive control unit from the corresponding electric mechanism - weft

) 5 controller, the main observer or by pressing the Stop button. At the beginning, it is remembered, and when passing through the back of the sector 20, the contactless switch 21

20 (FIG. 3) a command is issued to brake the electromagnetic clutch and simultaneously to turn on the auxiliary engine 15 means for additional rotation of the main shaft. 25 The braking is carried out by the spring 10. From the screw 16, the rotation gets the worm gear on the overrunning clutch 17. But as long as the worm gear rotates at a slower speed,

than the main shaft 9, the overrunning clutch 17 is not engaged. As soon as the speeds of the main shaft 9 and the worm gear are equalized, the overrunning clutch firmly seated on the transverse shaft 18 of the machine is engaged. Through

 bevel gear 19 rotation

It is transmitted to the main shaft 9 and it is additionally rotated at a low speed to the position of the spade. In addition, the rotation of the main shaft 9 of the machine is carried out until the front of the sector 20 overlaps the proximity switch 21 (FIG. 4), which corresponds to the position 9 of the slot in the spade. The accuracy of the stop provides low speed additional rotation of the main shaft and its position sensor, providing a timely signal to stop the electric motor 40

45

50

tel 17.

The drive of the loom with the means of additional rotation of the main shaft allows, at the weaving loom, 55 with a large braking angle, in

in particular, in the pneumatic naphtha, to perform a stable stop in the position of the spade. As a result, the weaver does not

when stopping manually, it is necessary to finish the machine to the position of the spade. At the same time, the serviceability of the machine is improved, therefore, BpehfH is reduced for filling the machine, which leads to an increase in the service area and an increase in the productivity of the weaver.

FIG. 2

20

21

20

Fig.Z

Editor O. Golovach

Compiled by M. Lopukhov Tehred N. Bonkalo

Order 1673/26

Circulation 425 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5

Branch PSh1 Patent, Uzhgorod, st. Design, And

FIG.

Proofreader, L. Patay

Claims (2)

1. DRIVE OF A WEaving MACHINE, comprising an electric motor kinematically connected to the main shaft of the machine and an electromagnetic clutch connected to the control unit, characterized in that, with <Rig1, in order to improve serviceability, it has a means of additionally turning the main shaft of the machine to the start position, including connected with the control unit, an electric motor and overrunning clutch kinematically connected with it and the main shaft of the machine, while the control unit has position sensors of the main shaft of the machine. 2. Drive pop. 1, characterized in that the freewheel. Is mounted on the transverse shaft of the machine, while its kinematic connection with the main shaft of the machine is made in the form of a reduction worm gear S9. SU <,,, 1222725>