CN203333957U - Warp-feeding device of warp knitting machine - Google Patents

Abstract

The utility model relates to a warp-feeding device of a warp knitting machine. The warp-feeding machine comprises a pattern shaft or a beam (1). The power input end of the pattern shaft or the beam (1) is connected with the power output end of a motor (2). The warp-feeding machine is characterized in that yarn (4) wound on the pattern shaft or the beam (1) passes through a plurality of yarn guides (5) and is conveyed to a weaving machine (6). Height differences exist among the plurality of yarn guides (5). The middle yard guide is fixed on a tension piece (7), and a displacement sensor (8) is arranged below the tension piece (7). According to the warp-feeding device of the warp knitting machine, displacement of the tension piece is detected by the displacement sensor, and therefore tension of the whole piece yarn can be known. A controller is used for controlling a motor to adjust the tension of the yarn so that the warp-feeding device of the warp knitting machine can have the advantages of being stable in tension, capable of avoiding yarn abrasion, capable of avoiding errors in warp feeding, good in warp feeding quality and convenient to maintain.

Description

The warp knitting machine let-off motion

Technical field

The utility model relates to a kind of warp knitting machine let-off motion, belongs to field of textile machinery.

Background technology

The floral axis warp let-off or the warp beam warp let-off of existing warp knitting machine generally adopt following three kinds of modes:

1, the damping warp let-off, by installing the passive warp let-off of friction plate additional, shortcoming is: overtension, tension force is unstable, and the kind adaptive surface is wideless.

2, the drive roll friction yarn roller warp let-off, rotate and the yarn axis friction by driving shaft, the actively warp let-off, and shortcoming is: the wearing and tearing yarn is serious, and easily skids.

3, by outer perimeter in setting and the number of turns then by calculating the open loop warp let-off, shortcoming is: setting parameter can be forbidden and setpoint frequency too much, cause the warp let-off to make mistakes.

Therefore seek a kind of tension stability, avoid thread wear, avoid the warp knitting machine let-off motion that the warp let-off makes mistakes, warp let-off quality is good, easy to maintenance particularly important.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, a kind of tension stability is provided, avoids thread wear, avoids the warp knitting machine let-off motion that the warp let-off makes mistakes, warp let-off quality is good, easy to maintenance.

The purpose of this utility model is achieved in that

A kind of warp knitting machine let-off motion, it comprises floral axis or warp beam, the power intake of described floral axis or warp beam is connected with the clutch end of a motor, the yarn be wound around on described floral axis or warp beam is delivered to loom through a plurality of thread-carriers, there is difference in height between described a plurality of thread-carrier, a middle thread-carrier is fixed on a tension piece, and the below of described tension piece is provided with displacement transducer.

Compared with prior art, the beneficial effects of the utility model are:

The utility model detects the displacement of tension piece by displacement transducer, thereby know whole yarn tension, then control motor by controller, regulate the tension force of yarn, make this warp knitting machine let-off motion there is tension stability, avoid thread wear, avoid that the warp let-off makes mistakes, warp let-off quality is good, easy to maintenance.

The accompanying drawing explanation

The structural representation that Fig. 1 is the utility model warp knitting machine let-off motion.

Wherein:

Floral axis or warp beam 1

Motor 2

Belt 3

Yarn 4

Thread-carrier 5

Loom 6

Tension piece 7

Displacement transducer 8.

The specific embodiment

Referring to Fig. 1, a kind of warp knitting machine let-off motion that the utility model relates to, it comprises floral axis or warp beam 1, the power intake of described floral axis or warp beam 1 is connected by belt 3 with the clutch end of a motor 2, the yarn 4 be wound around on described floral axis or warp beam 1 is delivered to loom 6 through a plurality of (having three at least) thread-carrier 5, there is difference in height between described a plurality of thread-carrier 5, a middle thread-carrier 5 is fixed in the outer end of a tension piece 7, the inner of described tension piece 7 is fixed on a fixed mount, the below of described tension piece 7 is provided with displacement transducer 8, described displacement transducer 8 passes to a controller by signal, this controller can be controlled motor 2.

Operation principle:

Yarn is in course of conveying, once tension force changes, vertical displacement can occur in tension piece, detect the displacement of tension piece by displacement transducer, thereby judge the tension force of current state yarn, thereby know the tension force of yarn on full wafer floral axis or warp beam, displacement transducer passes to controller by signal again, by the controller drive motors, by the PID(proportional-integral-differential of controller) regulate, make the tension force of yarn keep constant.

Claims (1)

1. a warp knitting machine let-off motion, it comprises floral axis or warp beam (1), the power intake of described floral axis or warp beam (1) is connected with the clutch end of a motor (2), it is characterized in that the upper yarn (4) be wound around of described floral axis or warp beam (1) is delivered to loom (6) through a plurality of thread-carriers (5), there is difference in height between described a plurality of thread-carrier (5), it is upper that a middle thread-carrier (5) is fixed in a tension piece (7), and the below of described tension piece (7) is provided with displacement transducer (8).

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