CN203546322U

CN203546322U - Warp loosening device of weaving machine

Info

Publication number: CN203546322U
Application number: CN201320664040.7U
Authority: CN
Inventors: 张水华
Original assignee: Wujiang Wei Qibu Industry Co Ltd
Current assignee: Wujiang Wei Qibu Industry Co Ltd
Priority date: 2013-10-28
Filing date: 2013-10-28
Publication date: 2014-04-16
Anticipated expiration: 2023-10-28

Abstract

The utility model relates to a warp loosening device of a weaving machine. The warp loosening device comprises a tension sensing rear beam, a fixed rear beam and a warp beam, wherein the fixed rear beam is arranged on the tension sensing rear beam; a crank with adjustable eccentricity is arranged between the warp beam and the fixed rear beam. According to the warp loosening device of the weaving machine, the crank with adjustable eccentricity is arranged, the reciprocating oscillation amplitude of the tension sensing rear beam is changed, the amplitude of loosening warps is changed, the tension of the warps is kept constant, the deformation, caused by the tension change, of the warps is reduced, the warp breakage rate and the weaving difficulty are reduced, and the production efficiency and the product quality are improved.

Description

A kind of easers of loom

Technical field

The utility model relates to textile machine, relates in particular to a kind of easers of loom.

Background technology

Fabric be warp thread and weft yarn be interweaved according to certain rules and product, during loom Woven fabric, for warp thread and weft yarn are interweaved, first by shedding motion, make warp thread form shed open, in shed open, introduce again weft yarn, finally by beating device, weft yarn is squeezed into fell, form fabric.Heald frame is done simple harmonic motion in shed open opening and close stage, open height changes with loom angle, during opening, warp thread is drawn as tortuous state by original straight configuration, warp thread has produced a certain amount of distortion thus, deflection changes with the variation of loom angle, opening makes warp thread be subject to longitudinal stretching, the increase of warp tension causes sometimes warp thread distortion or is pulled off, the particularly nonelastic distortion of some warp thread (as glass fiber yarn), when it is weaved, difficulty is very large, causes the lower and high expensive of production efficiency.

Utility model content

The utility model has overcome the deficiencies in the prior art, tension force easers stably when a kind of Warp opening is provided and while remaining silent.

For achieving the above object, the technical solution adopted in the utility model is: a kind of easers of loom, comprise that tension sense answers the back rest, be arranged at described tension sense and answer the fixedly back rest on the back rest, it is characterized in that: also comprise warp beam, described warp beam and be fixedly provided with the adjustable crank of offset between the back rest.

In preferred embodiment of the utility model, further comprise that described crank comprises connecting rod and the eccentric wheel that is arranged at connecting rod one end and is connected with described warp beam, described eccentric wheel end face offers dovetail groove, in described dovetail groove, being provided with can be along the slide block of its slip, and one end of described connecting rod is connected on described slide block.

In preferred embodiment of the utility model, further comprise that described tension sense answers the back rest and the described fork that is fixedly connected with between the back rest, described fork one end and described tension sense answer the back rest pivotally connected, and the other end is connected on the described fixedly back rest and with the described connecting rod other end and is rotationally connected.

In preferred embodiment of the utility model, further comprise in described dovetail groove and be equidistantly provided with several fixing holes, described connecting rod is connected by screw on described slide block and through described fixing hole and is fixed on described eccentric wheel.

In preferred embodiment of the utility model, further comprise that described dovetail groove two ends are provided with positive stop.

In preferred embodiment of the utility model, further comprise that described eccentric wheel is axially connected with described warp beam by power transmission shaft.

The utility model has solved the defect existing in background technology, the easers of loom of the present utility model is by arranging the adjustable crank of offset, change tension sense and answer the amplitude of oscillation of back rest reciprocally swinging, reach the amplitude that unclasps warp thread that changes, to keep warp tension constant, reduce warp thread because of the distortion that tension variation produces, reduced cracked ends rate and difficulty of weaving, improve production efficiency and product quality.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structural representation of preferred embodiment of the present utility model;

Fig. 2 is the structural representation of crank in the utility model;

In figure: 10, tension sense is answered the back rest, 20, the fixing back rest, 30, warp beam, 40, crank, 41, connecting rod, 42, eccentric wheel, 43, dovetail groove, 44, slide block, 45, fixing hole, 46, positive stop, 50, fork, 60, power transmission shaft, 70, shedding motion, 80, beating device, 90, cloth guider.

The specific embodiment

In conjunction with the accompanying drawings and embodiments the utility model is described in further detail now, these accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.

As shown in Figure 1, a kind of easers of loom, comprise the warp beam 30 that is wound with warp thread, along warp thread transmission direction, be provided with successively the fixedly back rest, tension sense and answer the back rest, make warp thread form the shedding motion 70 of shed open, by weft yarn being introduced at shed open to the beating device of squeezing into fell, warp thread and weft yarn are intertwined to form according to certain rules fabric and derive through cloth guider.Warp beam 30 and be fixedly provided with crank 40 between the back rest 20, the motion of crank 40 makes tension sense answer the back rest 10 to do reciprocally swinging, thereby realize, loosen and tensioning warp thread, be that loom is when flat comprehensive position, tension sense answers the back rest 10 to swing to rearmost position, loom is when aperture position, and tension sense answers the back rest 10 to swing to front position.For a change tension sense is answered the amplitude of oscillation of the back rest 10 reciprocally swingings, the offset of crank 40 is set to adjustable, reaches and changes the amplitude that unclasps warp thread, to keep warp tension constant, reduce warp thread because of the distortion that tension variation produces, guaranteed to weave continuously the distortion of middle warp thread minimum or without distortion.

As shown in Figure 2, crank 40 comprises connecting rod 41 and the eccentric wheel 42 that is arranged at connecting rod 41 one end and is connected with warp beam 30, eccentric wheel 42 end faces offer dovetail groove 43, in dovetail groove 43, being provided with can be along the slide block 44 of its slip, slide block 44 can be in the interior eccentric adjustment distance of dovetail groove 43, and one end of connecting rod 41 is connected on slide block 44.Eccentric wheel 42 is axially connected with warp beam 302 by power transmission shaft 60, so that crank 40 is synchronized with the movement with loom.When eccentric wheel 42 rotates, connecting rod 41 moves reciprocatingly.

Make tension sense answer the back rest 10 to do reciprocally swinging, at tension sense, answer the back rest 10 and fixedly between the back rest 20, be connected with fork 50, fork 50 one end and tension sense answer the back rest 10 pivotally connected, and the other end is connected in fixedly on the back rest 20 and is rotationally connected with connecting rod 41 other ends.Can by the reciprocating motion of connecting rod 41, drive fork 50 and tension sense to answer the back rest 10 reciprocating motions.

After regulating the offset of eccentric wheel 42, for connecting rod 41 and slide block 44 are fixed in dovetail groove 43, can be at interior several fixing holes 45 that is equidistantly provided with of dovetail groove 43, connecting rod 41 is connected by screw on slide block 44 and through fixing hole 45 and is fixed on eccentric wheel 42.During adjusting slider 44, for avoiding it to skid off from dovetail groove 43 two ends, can positive stop 46 be set at dovetail groove 43 two ends.

The easers of loom of the present utility model is by arranging the adjustable crank of offset, change tension sense and answer the amplitude of oscillation of back rest reciprocally swinging, reach the amplitude that unclasps warp thread that changes, to keep warp tension constant, reduced the distortion that warp thread produces because of tension variation, cracked ends rate and difficulty of weaving have been reduced, improve production efficiency and product quality.

Above foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on description, must determine technical scope according to claim scope.

Claims

1. an easers for loom, comprises that tension sense answers the back rest, is arranged at described tension sense and answers the fixedly back rest on the back rest, it is characterized in that: also comprise warp beam, described warp beam and be fixedly provided with the adjustable crank of offset between the back rest.

2. the easers of a kind of loom according to claim 1, it is characterized in that: described crank comprises connecting rod and the eccentric wheel that is arranged at connecting rod one end and is connected with described warp beam, described eccentric wheel end face offers dovetail groove, in described dovetail groove, being provided with can be along the slide block of its slip, and one end of described connecting rod is connected on described slide block.

3. the easers of a kind of loom according to claim 2, it is characterized in that: described tension sense is answered the back rest and the described fork that is fixedly connected with between the back rest, described fork one end and described tension sense answer the back rest pivotally connected, and the other end is connected on the described fixedly back rest and with the described connecting rod other end and is rotationally connected.

4. the easers of a kind of loom according to claim 2, is characterized in that: in described dovetail groove, be equidistantly provided with several fixing holes, described connecting rod is connected by screw on described slide block and through described fixing hole and is fixed on described eccentric wheel.

5. the easers of a kind of loom according to claim 4, is characterized in that: described dovetail groove two ends are provided with positive stop.

6. the easers of a kind of loom according to claim 5, is characterized in that: described eccentric wheel is axially connected with described warp beam by power transmission shaft.