RU2240389C1 - Mechanism for regulating tightening of warp threads on weaving machine - Google Patents

Abstract

FIELD: textile engineering.

SUBSTANCE: mechanism has kinematic drive for gear arranged under weaver's beam. Weaver's beam drive has differential mechanism comprising gear arranged under weaver's beam on drive shaft, toothed gear rigidly fixed on drive shaft, and loosely arranged carrier adapted for carrying of two paired gears. Loading device is positioned on carrier end. Two paired gears are in contact with toothed gear of drive shaft and of gear arranged under weaver's beam.

EFFECT: improved quality articles manufactured from fabric.

2 dwg

Description

The invention relates to textile machinery, in particular to mechanisms for tempering the warp from a navoi loom and maintaining the necessary refueling tension of the main threads for the cycle of the machine, both for textile, and for metal and other monofilaments.

A device for regulating the tension of the warp with periodic rotation of the Navoi [1], comprising a rock with a roller, traction with a two-arm lever. With an increase in the tension of the base, the roller approaches the cam, which causes an acceleration of the winding of the base. The translational motion is transmitted to the rotational worm by means of a cam clutch. Further, the movement is transmitted by a worm gear to the bottom gear.

The disadvantage of this device is that while ensuring the regulation of the average filling tension of the warp, it does not create tension at the time of surf surfacing of the weft thread necessary to create the required phase construction of the fabric.

As a prototype, the main regulator of a positive type loom [2] was selected, which contains a rock on a spring-loaded lever connected to the pinion gear using a ratchet mechanism and planetary gear with internal gearing. The planetary gear satellite has a rigidly mounted pin on the end surface, connected by means of traction to the ratchet dog, the planetary gear sun wheel is kinematically connected to the rock, and the carrier to the main shaft of the machine.

A disadvantage of the known mechanism is the inability to control the tension of the base during the surf (the structure of the formed fabric depends on the strength of the surf and the tension of the base and fabric during the surf).

The technical result of the invention is the provision of a given phase structure (structure) of the fabric by creating at the surf phase the strictly necessary calculated value of the tension of the warp threads.

The specified technical result is achieved by the fact that in the mechanism for regulating the tension of the main threads on the weaving machine, containing a kinematic drive to the bottom gear, according to the invention, the Navoi drive further comprises a differential mechanism consisting of a bottom gear, freely mounted on the drive shaft rigidly fixed to it a gear wheel and a freely set carrier, on which two paired gears are fixed, and at its end a loading means is installed, while two paired e gear contact with a gear of the drive shaft and pinion podnavoynoy.

Figure 1 shows the kinematic diagram of the inventive device, profile projection, figure 2 is the same, view along arrow A (rotated).

The mechanism for adjusting the tension of the main threads on the loom comprises a bulk with a gear gear 1 engaged with the gear 2 freely rotating on the drive shaft 3. A gear 4 is fixedly mounted on the drive shaft 3 and the carrier 5 is mounted, which can rotate freely on the drive shaft 3. Two paired gears 6 and 7 are installed on the carrier, and at its end there is a load means 8 (for example, a load, a spring, an electromagnetic device, etc.), under which a support 9 is placed.

The mechanism works as follows. During the tempering process, the carrier drove 5 motionlessly, as rests on the support 9. The differential operates in a stepped gear mode with fixed axles, and the base release mechanism performs its functions as a regulator of positive action in the usual conventional technological mode. In the surf phase, the support 9 is moved away by means of an actuator (for example, a cam, an electromagnet or other device) and the carrier 5 begins to rotate under the influence of the load means 8. During this period, the device operates as a differential mechanism, i.e. when the carrier 5 is turned, the bulk 1 will turn in the direction opposite to the base release, and the base tension will change to the necessary one, since the base tension will depend on the calculated force created by the loading means 8. Thus, the strictly necessary calculated tension value is provided at the surf phase of the weft thread warp threads to create the desired phase construction of the fabric.

Sources of information

1. O. Talavashek, V. Svaty. Shuttleless looms: Per. from Czech - M .: Legprombytizdat, 1985, p. 57.

2. USSR author's certificate No. 1057587, IPC D 03 D 49/06, 1983

Claims (1)

A mechanism for adjusting the tension of the main threads on the weaving machine, comprising a kinematic drive to the bottom gear, characterized in that the Navoi drive further comprises a differential gear made of the bottom gear, freely mounted on the drive shaft with a gear wheel fixed to it and a loose carrier, on which two twin gears are fixed, and at its end a loading means is installed, while two twin gears are in contact with the gear wheel of the drive shaft and gear wheel.

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