Rear beam supporting device for external slackening devices

Abstract

The invention provides a rear beam supporting device for external slackening devices. The rear beam supporting device comprises a rear beam, left and right positioning bases which are structurally systematic, slackening devices, and rear beam supporting mechanisms; the left and right rear beam supporting mechanisms both comprise a supporting connecting shaft and a swinging connecting shaft, the supporting connecting shafts are supported in mounting holes of the left and right positioning bases through bearings or bushings, the portions, on the inner and outer sides of the positioning bases, ofthe supporting connecting shafts are provided with inner and outer connecting shaft arms which are locked to the supporting connecting shafts, the inner and outer connecting shaft arms support the swinging connecting shafts through bearings or shaft linings, the portions, between the inner and outer connecting shaft arms and on the inner sides of the positioning bases, of the swinging connectingshafts are provided with rear beam rocking arms which are locked to the swinging connecting shafts, and the portions, on the outer sides of the outer connecting shaft arms, of the swinging connectingshafts are provided with swinging arms which are locked to the swinging connecting shafts; the left and right slackening devices are connected with the swinging arms on the outer sides of the left andright positioning bases to form external slackening devices; tension detection mechanisms are arranged between the left and right inner connecting shaft arms and the corresponding positioning bases,and bushings or bearings for installing a rear beam are arranged on the rear beam rocking arms and are pressed on the rear beam rocking arms through glands.

Description

technical field [0001] The invention relates to the field of air-jet loom devices, in particular to a back beam support device with external pine warp. Background technique [0002] The easing device of the air-jet loom will send out yarn with a certain tension during the weaving process to maintain the normal weaving of the loom. The tension sensor, rocker arm and swing arm of the original external positive loose warp are all installed on the outside, and the back beam needs to be lengthened. The same reed width of the loom increases the weight of the back beam and reduces the strength of the back beam. The other is built-in active warp easing, and its tension sensor, rocker arm and swing arm are all installed inside, which is inconvenient for installation and adjustment of the warp easing device. There is also an external loosening device supported by partial tension induction. Due to the partial induction of tension, the tension control is inaccurate and the tension is u...

AI Technical Summary

Problems solved by technology

The tension sensor, rocker arm and swing arm of the original external positive loose warp are all installed on the outside, the back beam needs to be lengthened, and the same reed width of the loom increases the weight of the back beam and reduces the strength of the back beam

The other is the built-in active warp loosening, the tension sensor, rocker arm and swing arm are all installed inside, which is not convenient for the installation and adjustment of the warp loosening device

There is also an external loosening device supported by partial tension induction. Due to the partial induction of tension, the tension control is inaccurate and the tension is unstable, which affects the weaving quality.

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