CN201006917Y

CN201006917Y - Unevenness leather ring

Info

Publication number: CN201006917Y
Application number: CNU2006201610299U
Authority: CN
Inventors: 常涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-30
Filing date: 2006-11-30
Publication date: 2008-01-16
Anticipated expiration: 2016-11-30

Abstract

Disclosed is a concave-convex leather collar which can improve yarn quality. The outer layer of an upper leather collar is provided with a convex portion, the outer layer of a lower leather collar is provided with a concave portion, and the convex portion of the upper leather and the concave portion of the lower leather are tightly tangent with each other. The utility model can effectively improves the phenomenon of fiber dispersion caused by compression of the leather collars, gather fiber, strength the friction force of fiber, enhance additional friction force boundary, improve yarn quality and decrease the phenomenon of adhering to the leather collard. The utility model is simple in structure without increasing energy consumption.

Description

A kind of concavo-convex apron

Affiliated technical field

The utility model relates to a kind of concavo-convex apron, especially can improve the apron of yarn qualities.

Background technology

Apron is a drafting unit important on the fine spining machine, mainly is to produce additional friction power circle, strengthens the control to the floating fiber motion, the effect that improves yarn quality and improve the drafting multiple of fine spining machine.

Apron is one of critical piece of controlling fiber motion, comprise in the world at present domestic application maximum be the acrylonitrile-butadiene rubber apron.It is bonded by three-decker.Skin is the rubber elongate layer, directly contacts with fiber during spinning, therefore, requires soft surface, bright and clean, pore and particle must not be arranged, and will have certain elasticity and coefficient of friction, so that controlling fiber motion effectively.Internal layer is the rubber compression layer, directly contacts with roller, pin, and therefore, batching requires smooth and high resilience with outer different, heat-resisting, wear-resisting simultaneously, not sticking bits.The middle level is the strengthening course that the muscle face by the wire-wound spirality forms, and in order to improve the tensile strength of apron, reduces to extend and keeps the fixing internal diameter of apron, therefore, line desired strength height, extends little and even thickness.

In the long-term process of using, find fiber under the control of apron up and down, fiber still relatively disperses, and the ability drop of controlling fiber is particularly obvious especially for high drafting, and the quality of yarn descends.

Summary of the invention

For overcome existing apron can not be especially effectively controlling fiber motion and cause the less-than-ideal deficiency of yarn qualities, the utility model that a kind of concavo-convex apron is provided, this concavo-convex apron controlling fiber motion effectively, and can improve quality of yarn.

The technical scheme that its technical problem that solves the utility model adopts is: the structure of concavo-convex apron is bonded by three layers, and hardness is Shao Shi A62～65.Skin is the rubber elongate layer, and internal layer is the rubber compression layer, and the middle level is a strengthening course.The skin of upper leather ring has the part of protrusion, the skin of following apron has recessed part, the apron jog can be closely tangent up and down, considers the volume of fiber strip, and the degree of depth of the outer recess of apron reduces to some extent under the aspect ratio of the outer projection of upper leather ring.

The beneficial effects of the utility model are can improve the phenomenon that makes fiber dispersion owing to the apron extruding effectively, the gathering fiber, reinforcement strengthens additional friction power circle to the frictional force of fiber, improves yarn qualities, reduce ixoderm circle phenomenon, simple in structure, energy consumption does not increase.

Description of drawings

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

Fig. 1, Fig. 2 are that the utility model is protruding, the structure chart of recessed apron.

Fig. 3, Fig. 4 are the structural maps of protruding, recessed apron embodiment.

1. internal layers among the figure, 2. strengthening course, 3. skin, 4. bossing, 5. recess; B. apron width, C. apron thickness, D. apron diameter, the L. bottom width, the K. upper width, H. protrudes the degree of depth, M. width suitable for reading, P. end opening width, the recessed degree of depth of N..

The specific embodiment

In Fig. 1, there is the part of protrusion the outer field centre of protruding apron; Among Fig. 2, there is recessed part the outer field centre of recessed apron, and concavo-convex apron jog can be closely tangent.

Fig. 3, embodiment illustrated in fig. 4 in, spin the following fiber of 40mm, during 9～19tex yarn, the relevant dimension D * C * B * L * K * H (mm) of protruding apron is φ 37 * 0.85 * 28 * 3 * 1.4 * 0.20; Relevant dimension D * C * B * M * P * the N (mm) of recessed apron is φ 83 * 1.0 * 28 * 3 * 1.2 * 0.24.

Claims

1. a concavo-convex apron is made up of upper and lower apron; It is characterized in that: the skin of upper leather ring has the part of protrusion, and the skin of following apron has recessed part, and the apron jog can be closely tangent up and down.