CN201065457Y

CN201065457Y - Yarn supplying device

Info

Publication number: CN201065457Y
Application number: CNU2007201119282U
Authority: CN
Inventors: 马信棣
Original assignee: NINGBO SUN TEXTILE MACHINERY CO Ltd
Current assignee: NINGBO SUN TEXTILE MACHINERY CO Ltd
Priority date: 2007-07-16
Filing date: 2007-07-16
Publication date: 2008-05-28
Anticipated expiration: 2017-07-16

Abstract

The utility model relates to a yarn feeding device, comprising a casing (1) and at least two parallel thread feeding rollers (2) transversely arranged through the casing (1) and driven by a transmission mechanism; wherein the casing (1) comprises a top cover (1), a lower cover (13), and a central casing (12) between the top cover (1) and the lower cover (13). A plurality of through holes (12c) for the thread feeding roller (2) are arranged on both sides of the central casing (12) comprising a left sheet casing (12a) and a right sheet casing (12b). The left sheet casing (12a) is integrated with the lower cover (13) into one body. Compared with the prior art, the utility model has the advantages that the thread feeding rollers always remain stable and are unlikely to dither on the central casing while rotating since the casing is divided into the top cover, the lower cover and the central casing, meanwhile the thread feeding roller is only arranged through the central casing. In addition, the consistence in rotating step and frequency of the two thread feeding rollers are ensured, the feeding quality of the thread feeding rollers is ensured and the service life of bearings is also prolonged.

Description

A kind of yarn-feeding device

Technical field

The utility model relates to the technical field of knitting machine, especially a kind of yarn-feeding device.

Background technology

Yarn-feeding device is the vitals in the knitting machine, especially when carrying elastomeric yarn, because elastomeric yarn has vertical tensile characteristic, must by the line sending rod yarn be in all the time and supply with knitting zone under the constant low yarn stress by the special yarn-feeding device that is provided with the line sending rod.As the patent No. is that the Chinese invention patent " Yarn Feeder Device " of ZL96105672.X (notification number is CN1062041C) discloses so a kind of yarn-feeding device, it mainly comprises by shell and two parallel line sending rods that laterally are located on the shell and driven by transmission mechanism, wherein shell is formed by shell combination up and down, have relative recess on the last lower house, mutually amalgamation and form a circular hole feed line rod and wear, suitable more sliding, steady for the rotation that makes the line sending rod, the position that is positioned at the edge of upper and lower casing at the line sending rod generally also is arranged with bearing.In yarn-feeding device, because the line sending rod is supported among the shell of upper and lower two housings composition, in actual use, the line sending rod constantly rotates between upper and lower casing, easy like this loosening of upper and lower two housings that cause, particularly when the recess size of upper and lower casing slightly not simultaneously, it is very serious that jitter phenomenon takes place on shell for two line sending rods, and front and back two line sending rods rotations step is also asynchronous, not only influence the service life of bearing, also influence the defeated yarn quality of line sending rod, directly have influence on the work of knitting machine and the quality of product.Therefore and in this yarn-feeding device, the bearing of line sending rod periphery is directly to be embedded on the edge of upper and lower casing, in use, also causes looseningly between bearing and the upper and lower casing easily, and this yarn-feeding device needs further improvement.

Summary of the invention

Technical problem to be solved in the utility model provides and a kind ofly can guarantee that the rotation of line sending rod remains the yarn-feeding device of plateau.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this yarn-feeding device, include shell and at least two parallel line sending rods that laterally are located on the shell and drive by transmission mechanism, wherein, have the through hole that feed line rod wears on the described shell both sides, it is characterized in that: described shell comprises loam cake, lower cover and the central housing between upper and lower covers, and described through hole is just opened on the both sides of this central authorities' housing.

For the assembly work of mechanical part in the processing that makes central housing and the shell easier, described central housing can be put together by left side sheet housing and right side sheet housing, wherein, left side sheet housing can be for separating independent processing with lower cover, but for increasing the firmness of left side sheet housing, this left side sheet housing and lower cover are to be good with integral piece.

In the existing yarn-feeding device, generally also be arranged with bearing in line sending rod periphery, for preventing that the line sending rod is in rotation process, bearing is beated on shell, thereby further guarantee line sending rod stability of rotation, also be provided with the bearing block that is connected as a single entity with it on the madial wall of described central housing, described bearing promptly is embedded in corresponding bearing block, design by the bearing block that is connected as a single entity with central housing, make bearing tightr with being connected of housing, bearing is by firmly spacing in bearing block, and can be in housing voluntary activity.

As further improvement, described bearing block inner side edge along on can also be uniformly distributed with a plurality of breach, and, in each breach, be embedded with elastic cushion block, be to become flexible on the one hand for the relative bearing block in the outer ring that can prevent bearing, be for offsetting in the bearing phenomenon that rises of the heat between each part on the other hand, thereby prolong the service life of bearing, very practical.

Compared with prior art, advantage of the present utility model is: shell is divided into upper and lower covers and middle central housing, and the line sending rod only is located on these only parts of central housing, make the line sending rod when rotating, be difficult on central housing, shaking, and remain plateau, guaranteed that also the two line sending rods in front and back rotate step, frequency is consistent, thereby guaranteed the defeated yarn quality of line sending rod, also prolonged the service life of bearing; Simultaneously, the design by the bearing block that is connected as a single entity with central housing makes bearing tightr with being connected of housing, and bearing is by firmly spacing in bearing block, and can be in housing voluntary activity; The utility model is simple in structure, manufacturing cost is lower, easy for installation, can guarantee to keep between every group of bearing of line sending rod and transmission mechanism good axiality, and make and have the accurate depth of parallelism between bearing and the backing roll, thereby make defeated yarn steady, even tension has farthest improved the quality that weaves cloth cover.

Description of drawings

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

Fig. 2 is the three-dimensional exploded view of the utility model embodiment;

Fig. 3 is the structural representation of sheet housing in right side among the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 3, this yarn-feeding device, two parallel line sending rods 2 that drive on including shell 1 and laterally being located in shell 1 and by transmission mechanism;

Wherein, the transmission mechanism that two line sending rods of described driving 2 rotate adopts existing technology, is not described further here;

Described shell 1 comprises loam cake 11, lower cover 13 and the central housing 12 between upper and lower covers, loam cake 11, lower cover 13 and central housing 12 fuse by press fastening type fastener or screw fastening device, adopt screw fastening and piece together one in the present embodiment, and should be put together by left side sheet housing 12a and right side sheet housing 12b by central authorities' housing 12, this left side sheet housing 12a and lower cover 13 are integral piece, and, have two corresponding through hole 12c on left side sheet housing 12a and right side sheet housing 12b, above-mentioned two line sending rods 2 just are located among the corresponding through hole 12c respectively;

Described line sending rod 2 peripheries also are arranged with bearing 3, in the present embodiment, bearing 3 is a ball bearing, and, also be provided with the bearing block 12d that is connected as a single entity with it on the madial wall of described left side sheet housing 12a and right side sheet housing 12b, described bearing 3 just is embedded in corresponding bearing block 12d;

Simultaneously, described bearing block 12d inner side edge also is uniformly distributed with a plurality of breach 12e along last, and, in each breach 12e, be embedded with elastic cushion block 12f.

Claims

1. yarn-feeding device, at least two parallel line sending rods (2) that include shell (1) and be located in laterally that shell (1) is gone up and drive by transmission mechanism, wherein, have the through hole (12c) that feed line rod (2) wears on described shell (1) both sides, it is characterized in that: described shell (1) comprises loam cake (11), lower cover (13) and is positioned at central housing (12) between the upper and lower covers (11,12), and described through hole (12c) is just opened on the both sides of this central authorities' housing (12).

2. yarn-feeding device according to claim 1 is characterized in that: described central housing (12) is put together by left side sheet housing (12a) and right side sheet housing (12b), and this left side sheet housing (12a) is an integral piece with lower cover (13).

3. yarn-feeding device according to claim 1 and 2, it is characterized in that: described line sending rod (2) periphery also is arranged with bearing (3), and, also be provided with the bearing block (12d) that is connected as a single entity with it on the madial wall of described central housing (12), described bearing (3) just is embedded in corresponding bearing block (12d).

4. yarn-feeding device according to claim 3 is characterized in that: described bearing block (12d) inner side edge is along the last a plurality of breach (12e) that also are uniformly distributed with, and, in each breach (12e), be embedded with elastic cushion block (12f).