CN201785589U

CN201785589U - Multi-support-point low-inertia back beam of knitting machine

Info

Publication number: CN201785589U
Application number: CN2010202024934U
Authority: CN
Inventors: 方关根
Original assignee: HANGZHOU TEXTILE MACHINERY CO Ltd
Current assignee: HANGZHOU TEXTILE MACHINERY CO Ltd
Priority date: 2010-05-25
Filing date: 2010-05-25
Publication date: 2011-04-06
Anticipated expiration: 2020-05-25

Abstract

The utility model relates to a multi-support-point low-inertia back beam of a knitting machine, which comprises a fixed back beam and movable back beams, wherein the fixed back beam is movably sheathed on a support foot of the fixed back beam through semicircular clamp sleeves, the support foot of the fixed back beam is fixedly arranged on a fixed cross beam of the knitting machine, the movable back beams are also movably sheathed on support feet of a plurality of movable back beams through semicircular clamp sleeves, the support feet of the movable back beams are also arranged on the support foot of the fixed back beam through pin shafts and can flexibly rotate, a tension arm is respectively arranged at both ends of the movable back beams, and is connected with a tension pulling spring assembly and a pulling spring installation plate, support feet of both ends of the fixed back beam are whole circular sleeves, thus the axial positioning through positioning sleeves can be realized, the lower ends of the support feet of the movable back beams and the tension arms are connected with a synchronous plate, and springs used for balancing the tension are arranged on the tension arms. The utility model can solve the problem of deformation of the back beams supported by two original ends of a broad-width knitting machine caused by the tension effect of warp yarns, meanwhile, the weight of the back beams can be reduced, the swinging inertia increased because of the weight increase of the original back beams is reduced, the sensitivity on the warp yarn tension sensing by the swinging back beams is improved, and the stability of the warp yarn tension in the knitting process is maintained.

Description

A kind of many strong points of loom hang down the inertia back rest

Technical field

The utility model relates to a kind of low inertia back rest of many strong points of loom, belong to the back rest system of textile machine fabric manufacture equipment.

Background technology

As shown in Figure 1, the structure and the characteristics of the tension force back rest of prior art are as follows: warp thread passes through the fixedly back rest 111, the movable back rest 102 arrival weaving areas, and warp thread has certain force of strain when weaving, and fixedly the back rest and the movable back rest 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, causes that the rotate center of moving axis 108 of the movable back rest rotates trend, by the spring balancing on the tension arm 1.Be field planting after spring force mixes up, in weaving process, the fluctuation of warp tension can cause the swing of tension arm, and this oscillating quantity feeds back to control system, controls the sendout of warp thread, reaches the balance of tension force.

As shown in Figure 1, the movable back rest 102 links to each other with 109 with central shaft 105 with 110 by journal bearing 106 respectively with the fixing back rest 111, the two ends of central shaft 105 are separately fixed on the tension arm 101 of both sides, be fixed on the bearing block 107 by journal bearing 106 again, be fixed on then on the frame, turning cylinder 108 radial and axial all only is subjected to unidirectional restriction.The two ends of central shaft 109 are fixed on the frame.The movable back rest 102 and fixedly the back rest 111 can rotate around the central shaft of self respectively.

The problem that above-mentioned prior art exists has:

1. the movable back rest 102 and fixedly the back rest 111 be subjected to can produce after the load crooked, frame does not have axial restriction to its flexural deformation.

2. in the middle of the movable back rest solid central shaft is arranged, weight is bigger, and back rest inertia is big, when the fluctuation of tension force is reflected on the control system, is subjected to the influence of inertia bigger, and is positive and negative inconsistent, reflects insensitive.

3. back rest diameter needs slightlyer during wide cut, but is difficult to resolve flexible problem behind the back beam stress of determining.

4. manufacturing cost is higher.

Summary of the invention

The purpose of this utility model is to overcome the deficiency that prior art exists, and the low inertia back rest of many strong points that a kind of loom is provided, it can solve the back rest of the former two end supports of wide cut loom owing to be subjected to the distortion that the warp tension effect causes, can alleviate simultaneously the quality of the back rest, reduce the swing inertia that the former back rest strengthens because of weight, improve the sensitivity of oscillating back rest, keep the stability of warp tension in the weaving process the warp tension induction.

The purpose of this utility model is finished by following technical solution, it includes the fixedly back rest and the movable back rest of walking around and enter weaving area for warp thread, the described fixedly back rest be semicircle cutting ferrule kink by the fixing back rest on fixing back rest feet, fixedly back rest feet is packed on the fixed cross beam of loom; The movable back rest also passes through the semicircle cutting ferrule kink of the movable back rest on a plurality of movable back rest feets, movable back rest feet is installed in fixedly by bearing pin and also can rotates flexibly on the back rest feet, at movable back rest two ends one tension arm is installed respectively, and is connected with the extension spring installing plate with tension force extension spring assembly.

Described fixedly back rest feet is that this fixed cross beam is connected with loom frame according on a plurality of fixed cross beams that are packed in loom of the certain at interval distance of the reed width of loom, and fixedly the two end supports pin of the back rest is the full circle cover, and passes through to locate the interplanting axial location.

The lower end of described movable back rest feet and described tension arm and a synchronous plate connect, and described tension arm is provided with the spring that is used for balance warp tension size.

The utility model can solve the back rest of the former two end supports of wide cut loom owing to be subjected to the distortion that the warp tension effect causes, can alleviate simultaneously the quality of the back rest, reduce the swing inertia that the former back rest strengthens because of weight, improve the sensitivity of oscillating back rest, keep the stability of warp tension in the weaving process the warp tension induction.

Description of drawings

Fig. 1 is the prior art constructions schematic diagram.

Fig. 2 be Fig. 1 A-A sectional structure schematic diagram.

Fig. 3 is a structural representation of the present utility model.

Fig. 4 is the B-B sectional structure schematic diagram of Fig. 3.

Fig. 5 is the backsight structural representation of Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done detailed introduction: as shown in Figure 1, 2, 3, warp thread is walked around the fixedly back rest 211, and the movable back rest 212 enters weaving area.Fixedly the back rest 211 semicircle cutting ferrule 207 kinks by the fixing back rest are on fixing back rest feet 203, fixedly back rest feet 203 can be according on a plurality of fixed cross beams 202 that are packed in loom of the certain at interval distance of the reed width of loom, fixed cross beam 202 is connected with loom frame simultaneously, increase its rigidity, fixedly the two end supports pin of the back rest is the full circle cover, and makes axial location by positioning sleeve 214.The movable back rest 212 also passes through semicircle cutting ferrule 205 kinks of the movable back rest on a plurality of movable back rest feets 204, movable back rest feet 204 is installed in fixedly by bearing pin 206 and also can rotates flexibly on the back rest feet 203, at the movable back rest 212 two ends one tension arm 215 is installed respectively, be connected with tension force extension spring assembly 208, extension spring installing plate 209, simultaneously, synchronous plate 210 connection activity back rest feet 204 lower ends and tension arms 215 guarantee the synchronism of a plurality of movable back rest feets 204 and tension arm 215.The size of warp tension can be by the spring balancing on the tension arm 215, and the fluctuation of warp tension can cause the movable back rest 212 integral body around the rotation of bearing pin 206 centers, and the sendout by tension control system control warp thread reaches the equalization of strain when weaving.

The utlity model has following advantage:

The firstth: fixedly the back rest and movable back beam have a plurality of strong points that are no less than more than 3, in unit length, bear same warp tension and can realize the narrow tube making back rest because support distances shortens, and the back rest of general loom has to adopt major-diameter thick-wall tubing to make the back rest because be two end supports only for overcoming distortion. The rear Liangqi weight that narrow tube is made alleviates greatly, and the inertia of oscillating back rest reduces greatly, has improved the sensitivity of back rest to the tension force reaction, has guaranteed the stable of weaving tension;

The secondth: the intermediate supports pin and fixedly the installation of the back rest and movable back beam adopt semi-circular nylon cutting ferrule, fixed on the one hand back rest roller, can allow on the other hand back rest roller Free overcome the wearing and tearing of warp thread and back rest roller, simultaneously, semi-circular nylon cutting ferrule can guarantee that warp thread contacts with the complete of back rest roller, because middle feet separates warp thread, be not conducive to weave;

The 3rd is: a plurality of feets of the back rest are installed on the fixed cross beam, and this crossbeam is connected with frame, and simultaneously, fixed cross beam adopts the steel plate bending weldment, and inner chamber welds reinforcement, has strengthened the rigidity of fixed cross beam.

Claims

1. many strong points of a loom hang down the inertia back rest, it comprises the fixedly back rest (211) and the movable back rest (212) of walking around and enter weaving area for warp thread, it is characterized in that the described fixedly back rest (211) be semicircle cutting ferrule (207) kink by the fixing back rest on fixing back rest feet (203), fixedly back rest feet (203) is packed on the fixed cross beam (202) of loom; The movable back rest (212) passes through semicircle cutting ferrule (205) kink of the movable back rest on a plurality of movable back rest feets (204), movable back rest feet (204) is installed in fixedly by bearing pin (206), and back rest feet (203) upward also can rotate flexibly, at the movable back rest (212) two ends one tension arm (215) is installed respectively, and is connected with extension spring installing plate (209) with tension force extension spring assembly (208).

2. many strong points of loom according to claim 1 hang down the inertia back rest, it is characterized in that described fixedly back rest feet (203) is according on a plurality of fixed cross beams (202) that are packed in loom of the certain at interval distance of the reed width of loom, this fixed cross beam (202) is connected with loom frame, fixedly the two end supports pin (203) of the back rest (211) is the full circle cover, and makes axial location by positioning sleeve (214).

3. many strong points of loom according to claim 1 hang down the inertia back rest, the lower end and the described tension arm (215) that it is characterized in that described movable back rest feet (204) connect with a synchronous plate (210), and described tension arm (215) is provided with the spring that is used for balance warp tension size.