CN2672109Y

CN2672109Y - Multiple roller truss-type tension back beam structure of loom

Info

Publication number: CN2672109Y
Application number: CN 200320130473
Authority: CN
Inventors: 周香琴; 王冰华
Original assignee: HANGZHOU TEXTILE MACHINERY CO Ltd
Current assignee: HANGZHOU TEXTILE MACHINERY CO Ltd
Priority date: 2003-12-19
Filing date: 2003-12-19
Publication date: 2005-01-19
Anticipated expiration: 2013-12-19

Abstract

The utility model relates a multi-roller truss-type tension back rest structure of a weaving machine, comprising a back rest which is arranged on a machine frame for warp yarn to pass through. The back rest is at least composed of two movable beams and one fixed beam which are connected with each other by a partition board arranged laterally; the two ends of the partition board arranged laterally are tightly fixed with a pulling arm provided with a spring; at least two sliding bearings are arranged between a movable shelf and the partition board; the fixed beam is fixedly connected with the partition board; a spacer is fixedly connected between the fixed beam and the partition board, and the two ends of the fixed beam are respectively connected with the machine frame by bearings. Compared with the prior art, the multi-roller truss-type tension back rest structure has the advantages of thin back rest and light weight, and the machine frame has an axial restriction function to the back rest; the surface abrasion of the back rest is homogeneous and little; the utility model which can save materials and cut down cost is applied to breadth weaving machines.

Description

Girder construction behind the loom multiple roll truss-like tension force

Technical field

The utility model relates to a kind ofly changing warp thread direction, the perception warp tension changes and the back-bearer structure of adjustable tension, belongs to the warp tension controlling organization of loom.

Background technology

In the prior art, as Figure 1-3, back girder construction is by fixedly the back rest 1 and the movable back rest 2 are formed, they link to each other with 6 with central shaft 5 with 4 by journal bearing 3 respectively, the two ends of central shaft 6 are separately fixed on the tension arm 7 of both sides, be fixed on the bearing block 8 by journal bearing 4 again, be fixed on then on the frame 9, turning cylinder 10 radial and axial all only is subjected to unidirectional restriction, the two ends of central shaft 5 are fixed on the frame 9, the movable back rest 2 and fixedly the back rest 1 can rotate around the central shaft of self respectively, warp thread 11 is by the fixing back rest and movable back rest arrival weaving area, warp thread 11 has certain force of strain when weaving, two beams all will bear bigger warp tension, on the one hand fixedly the back rest and movable back rest surface are subjected to the effect of warp tension, and needing can rotation, makes warp thread less through the Tension Difference of back rest front and back; On the other hand, warp tension acts on the movable back rest, cause that the rotate center of moving axis 10 of the movable back rest rotates trend, and, after mixing up, spring force is definite value, in weaving process by the spring balancing on the tension arm 7, the fluctuation of warp tension can cause the swing of tension arm, this oscillating quantity feeds back to control system, controls the sendout of warp thread, reaches the balance of tension force.Girder construction behind the tension force of above-mentioned loom, its movable back rest and fixedly the back rest be subjected to can produce after the load crooked, frame does not have axial restriction to its flexural deformation.In addition, in the middle of the movable back rest solid central shaft is arranged, weight is bigger, when the fluctuation of tension force is reflected on the control system, is subjected to the influence of gravity very big, positive and negative inconsistent, react insensitive, and during wide cut diameter need thicker, the material cost height, however, still can't solve the back beam stress after flexible problem.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and a kind of back rest rigidity that can effectively strengthen is provided, and reduces cost girder construction behind the loom multiple roll truss-like tension force of the surface abrasion of the minimizing back rest.It include for warp thread by and be placed in the back rest on the frame, this back rest is formed by connecting by two walking beams and built-in beam dividing plate by horizontal arrangement at least.

At least be equipped with two sliding bearings between described adjustable shelf and the dividing plate, built-in beam and dividing plate are connected, and the dividing plate of transverse ends tightens the tension arm of idiozona spring.

Have the support shelves to be connected between described built-in beam and the dividing plate, and the two ends of built-in beam respectively link to each other with frame by bearing.

The utility model compared with prior art has following technique effect: 1, the movable back rest is thinner, and is in light weight, favourable to tension adjustment; 2, produce flexural deformation behind walking beam and the built-in beam stand under load, frame can play the axial restraint effect to it; 3, the beam of warp thread process can rotation, has reduced the friction with warp thread, and the surface abrasion of beam is even; 4, economical with materials reduces cost; 5, be applicable to the wide cut loom.

Description of drawings

Fig. 1 is the prior art constructions schematic diagram.

Fig. 2 is the A---A cut-away view of Fig. 1.

Fig. 3 is the B---B cut-away view of Fig. 1.

Fig. 4 is a structural representation of the present utility model.

Fig. 5 is the C---C cut-away view of Fig. 4.

Fig. 6 is a tension arm syndeton schematic diagram of the present utility model.

The specific embodiment

4---6 is described in detail the utility model below in conjunction with accompanying drawing: shown in the figure, the back rest described in the utility model is by two walking beams 21 and a plurality of dividing plates 23 parallel are formed by connecting of a built-in beam 22 by horizontal arrangement, fixedlys connected by a plurality of supports shelves 24 between built-in beam 22 and the dividing plate; The walking beam 21 of two horizontal respectively is nested with in dividing plate 23 by sliding bearing 25 and can relatively rotates, and warp thread 26 is being walked around two walking beams, 21 arrival weaving areas.Tighten the tension arm 27 of idiozona spring at the dividing plate 23 of transverse ends, the tension force of warp thread 26 can be by the spring balancing on the tension arm 27, the fluctuation of warp thread 26 tension force can cause that dividing plate 23 and walking beam 21 integral body rotate around built-in beam 22 centers, sendout by tension control system control warp thread 26 reaches equalization of strain when weaving.Described built-in beam 22 links to each other with frame 29 by bearing 28, and the mounting means of bearing is fixed for two ends back-to-back, as shown in Figure 5.

Claims

1, girder construction behind a kind of loom multiple roll truss-like tension force, it include for warp thread by and be placed in the back rest on the frame, it is characterized in that the described back rest is formed by connecting by two walking beams (21) and a built-in beam (22) dividing plate (23) by horizontal arrangement at least.

2, girder construction behind many rods of loom truss-like tension force according to claim 1, it is characterized in that being equipped with two sliding bearings (25) at least between described walking beam (21) and the dividing plate (23), built-in beam (22) is connected with dividing plate (23), and the dividing plate of transverse ends (23) tightens the tension arm (27) of idiozona spring

3, girder construction behind many rods of loom truss-like tension force according to claim 1 and 2 it is characterized in that having between described built-in beam (22) and the dividing plate (23) support shelves (24) to be connected, and the two ends of built-in beam (22) respectively links to each other with frame by bearing.