CN209957120U

CN209957120U - Yarn guide ring of loom

Info

Publication number: CN209957120U
Application number: CN201920415715.1U
Authority: CN
Inventors: 吴朝灶; 王婉萍; 吴楚钟; 吴丹燕
Original assignee: Guangdong Rongchang Textile Industry Co Ltd
Current assignee: Guangdong Rongchang Textile Industry Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-01-17
Anticipated expiration: 2029-03-29

Abstract

A yarn guide ring of a loom comprises a guide wire wheel, a fixed shaft, a ball bearing and a plurality of compression springs, wherein an annular guide wire groove is formed in the wheel surface of the guide wire wheel, and a shaft hole is formed in the middle of the guide wire wheel; the fixed shaft is positioned in the inner ring of the ball bearing, and a gap is reserved between the inner ring of the ball bearing and the fixed shaft; the compression springs are uniformly arranged along the circumferential direction of the fixed shaft, the inner ends of the compression springs are fixedly connected with the fixed shaft, and the outer ends of the compression springs are fixedly connected with the inner ring of the ball bearing; the wire guide wheel is arranged on the outer ring of the ball bearing through the shaft hole. The sensitivity of the rotation of the wire guide wheel is completely dependent on the ball bearing, and the sensitivity is greatly improved; in addition, a plurality of compression springs are arranged between the fixed shaft and the inner ring of the ball bearing, so that when pressure changes, the guide wire wheel can float relative to the fixed shaft, storage and release of yarn to a certain degree are carried out, instantaneous pulling force is dissolved, and tension self-adjustment is realized.

Description

Yarn guide ring of loom

Technical Field

The utility model relates to a loom accessory especially relates to a yarn guide ring of loom.

Background

On a loom, a yarn guide structure is required to be arranged to guide yarns, at present, a fixed guide structure is generally adopted, namely, all yarn guide rings are fixedly arranged on a rack, yarns penetrate through the corresponding yarn guide rings, and under the high-speed traction of a front knitting needle, instantaneous pulling force is generated on the yarns, so that the tension of the yarns is increased instantly and greatly, therefore, the yarns are easily torn off, the fabric is defective or needs to be stopped for maintenance, and the production efficiency is reduced.

In order to overcome the above problems, in an improved structure, two elastic assemblies and two yarn guide rings are provided, one ends of the two elastic assemblies are respectively installed on the frame, and the two yarn guide rings are respectively installed on the other ends of the corresponding elastic assemblies. When the square knitting needle draws yarns at a high speed, instantaneous pulling force generated on the yarns acts on the corresponding elastic components through the two yarn guide rings to enable the two elastic components to deform oppositely, so that the distance between the two yarn guide rings is shortened, part of the yarns between the two yarn guide rings are released to buffer the instantaneous increase of the yarn tension, the yarn tension is controlled in a stable range, the yarns are prevented from being pulled apart due to the instantaneous increase of the yarn tension, the yarn breakage probability is greatly reduced, the product quality is greatly improved, and the production efficiency is improved; in the interval time between two times of puncture of the knitting needle, the yarn tension sent by the yarn traction mechanism at the rear part is smaller, the two elastic components are reset, and the yarn is temporarily stored between the two yarn guide rings to be used as the next released reserve.

The yarn guide structure mainly realizes tension control through the two elastic components, the elastic components generally adopt deformable metal strips, the yarn guide ring adopts a common yarn guide ring, namely, a roller with an annular yarn guide groove is arranged on a wheel surface, the yarn guide ring is generally directly arranged on a certain fixed shaft through a shaft hole to realize rotatable installation, when the yarn is pulled at high frequency and high speed, the sensitivity of deformation and resilience of the elastic components becomes low, the elastic components can also swing automatically due to the reciprocating high frequency of inertia, and the yarn guide ring is also easily clamped with the fixed shaft, so that the yarn is very easily broken.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a yarn guide ring of loom, this kind of yarn guide ring has higher rotational sensitivity and can realize tension self-interacting. The technical scheme is as follows:

the utility model provides a yarn guide ring of loom, includes the wire wheel, has seted up annular wire guide on the wheel face of wire wheel, and the centre of wire wheel is equipped with shaft hole, characterized by: the device also comprises a fixed shaft, a ball bearing and at least three compression springs; the fixed shaft is positioned in the inner ring of the ball bearing, and a gap is reserved between the inner ring of the ball bearing and the fixed shaft; the compression springs are uniformly arranged along the circumferential direction of the fixed shaft, the inner ends of the compression springs are fixedly connected with the fixed shaft, and the outer ends of the compression springs are fixedly connected with the inner ring of the ball bearing; the wire guide wheel is arranged on an outer ring of the ball bearing through a shaft hole.

Because the wire guide wheel is arranged on the fixed shaft through the ball bearing and the plurality of compression springs, the rotating sensitivity of the wire guide wheel completely depends on the ball bearing, the phenomenon of locking cannot occur, and the rotating sensitivity of the wire guide wheel is greatly improved; more importantly, a plurality of compression springs are arranged between the fixed shaft and the inner ring of the ball bearing, the ball bearing is supported necessarily, and can move relative to the fixed shaft, when a knitting needle pulls the yarn instantaneously, one side of the ball bearing is biased to move towards the fixed shaft by the pressure of the yarn, part of the yarn is released to dissolve the instantaneous pulling force, the yarn tension sent from the rear part is small in the interval time of two times of puncture of the knitting needle, each compression spring is reset, the originally pressed side of the ball bearing rebounds to increase the distance between the ball bearing and a rear supporting point (yarn pulling mechanism), so that a small amount of yarn is stored for sequential release, the yarn keeps proper tension by the floating of the guide wheel relative to the fixed shaft, and the self-adjustment of the yarn tension is realized.

As the preferred scheme of the utility model, ball bearing's both ends face all is equipped with bearing end cover, and bearing end cover stretches out ball bearing's outer lane outside and covers on the terminal surface of wire wheel, through screw locking connection between bearing end cover and the terminal surface of wire wheel.

As a further preferred scheme of the utility model, ball bearing's inner circle is equipped with a plurality of dovetails, all is equipped with the grafting piece in every dovetail, and the grafting piece is connected with ball bearing's inner circle, and the cross section of grafting piece and the shape phase-match of dovetail, each compression spring's outer end respectively with corresponding grafting piece fixed connection.

Compared with the prior art, the utility model, have following advantage:

the sensitivity of the rotation of the wire guide wheel is completely dependent on the ball bearing, and the sensitivity is greatly improved; in addition, a plurality of compression springs are arranged between the fixed shaft and the inner ring of the ball bearing, so that when pressure changes, the guide wire wheel can float relative to the fixed shaft, storage and release of yarn to a certain degree are carried out, instantaneous pulling force is dissolved, and tension self-adjustment is realized.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

fig. 2 is a cross-sectional view taken along a-a of fig. 1.

Detailed Description

The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, the yarn guide ring of the loom comprises a yarn guide wheel 1, a fixed shaft 2, a ball bearing 3 and four compression springs 4, wherein an annular yarn guide groove 5 is formed on the wheel surface of the yarn guide wheel 1, and a shaft hole 6 is formed in the middle of the yarn guide wheel 1; the fixed shaft 2 is positioned in the inner ring 301 of the ball bearing 3, and a gap 7 is reserved between the inner ring 301 of the ball bearing 3 and the fixed shaft 2; the compression springs 4 are uniformly arranged along the circumferential direction of the fixed shaft 2, the inner ends of the compression springs 4 are fixedly connected with the fixed shaft 2, and the outer ends of the compression springs 4 are fixedly connected with the inner ring 301 of the ball bearing 3; the guide roller 1 is mounted on the outer race 302 of the ball bearing 3 through the shaft hole 6.

Both end surfaces of the ball bearing 3 are provided with bearing end covers 8, the bearing end covers 8 extend out of the outer ring 302 of the ball bearing 3 and cover the end surface of the wire guide wheel 1, and the bearing end covers 8 are locked and connected with the end surface of the wire guide wheel 1 through screws 9. Set up bearing end cover 8 through the both ends face at ball bearing 3, prevent batting and dust to enter into ball bearing 3, rethread screw 9 locks bearing end cover 8 on the terminal surface of wire wheel 1, and the installation of wire wheel 1 is simple and convenient more.

When the outer ends of the compression springs 4 are connected with the inner ring 301 of the ball bearing 3, the inner ring 301 of the ball bearing 3 is provided with four dovetail grooves 10, each dovetail groove 10 is internally provided with an insertion block 11, the insertion blocks 11 are connected with the inner ring 301 of the ball bearing 3, the cross sections of the insertion blocks 11 are matched with the shapes of the dovetail grooves 10, and the outer ends of the compression springs 4 are respectively fixedly connected with the corresponding insertion blocks 11. The specific connection method comprises the following steps: the outer ends of the compression springs 4 are connected with the insertion blocks 11 and then inserted into the corresponding dovetail grooves 10, and then the inner rings 301 of the ball bearings 3 are connected with the insertion blocks 11, so that the outer ends of the compression springs 4 are connected to the inner rings 301 of the ball bearings 3. The connection between the insert 11 and the inner race 301 of the ball bearing 4 may be locked by screws or may be welded directly.

Because the wire guide wheel 1 is arranged on the fixed shaft 2 through the ball bearing 3 and the plurality of compression springs 4, the rotating sensitivity of the wire guide wheel 1 completely depends on the ball bearing 3, the phenomenon of locking can not occur, and the rotating sensitivity of the wire guide wheel 1 is greatly improved; more importantly, a plurality of compression springs 4 are arranged between the fixed shaft 2 and the inner ring 301 of the ball bearing 3, which not only form necessary support for the ball bearing 3, but also enable the ball bearing 3 to move relative to the fixed shaft 2, when a knitting needle instantaneously pulls the yarn, one side of the ball bearing 3 is biased to the fixed shaft 2 by the pressure of the yarn, partial yarn is released to dissolve the instantaneous pulling force, the yarn tension sent from the rear side is small in the interval time of two times of puncture of the knitting needle, each compression spring 4 is reset, the originally pressed side of the ball bearing 3 rebounds to increase the distance between the originally pressed side and the rear support point (yarn traction mechanism), so that a small amount of yarn is stored for sequential release, the yarn keeps proper tension by the floating of the guide wheel 1 relative to the fixed shaft 2, and the self-adjustment of the yarn tension is realized.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a yarn guide ring of loom, includes the wire wheel, has seted up annular wire guide on the wheel face of wire wheel, and the centre of wire wheel is equipped with shaft hole, characterized by: the device also comprises a fixed shaft, a ball bearing and at least three compression springs; the fixed shaft is positioned in the inner ring of the ball bearing, and a gap is reserved between the inner ring of the ball bearing and the fixed shaft; the compression springs are uniformly arranged along the circumferential direction of the fixed shaft, the inner ends of the compression springs are fixedly connected with the fixed shaft, and the outer ends of the compression springs are fixedly connected with the inner ring of the ball bearing; the wire guide wheel is arranged on an outer ring of the ball bearing through a shaft hole.

2. The yarn guide ring of claim 1, wherein: bearing end covers are arranged on two end faces of the ball bearing, the bearing end covers extend out of an outer ring of the ball bearing and cover the end faces of the wire guide wheel, and the bearing end covers are connected with the end faces of the wire guide wheel in a locking mode through screws.

3. The yarn guide ring as claimed in claim 1 or 2, wherein: the inner ring of the ball bearing is provided with a plurality of dovetail grooves, each dovetail groove is internally provided with an insertion block, the insertion blocks are connected with the inner ring of the ball bearing, the cross sections of the insertion blocks are matched with the shapes of the dovetail grooves, and the outer ends of the compression springs are fixedly connected with the corresponding insertion blocks respectively.