CN2431292Y

CN2431292Y - Nanel

Info

Publication number: CN2431292Y
Application number: CN 00215681
Authority: CN
Inventors: 汤龙世
Original assignee: YUHUA TEXTILE CO Ltd WEIFANG
Current assignee: YUHUA TEXTILE CO Ltd WEIFANG
Priority date: 2000-07-27
Filing date: 2000-07-27
Publication date: 2001-05-23
Anticipated expiration: 2010-07-27

Abstract

The utility model relates to a twisting-stopping disc, which comprises a yarn strip inlet, and a yarn leading pipe opening and an annular table surface which are concentrically communicated with the yarn strip inlet, wherein, the yarn strip inlet forms a sphere shape or a conical curved surface which smoothly transits with the annular table surface; because the outer peripheral diameter of the yarn strip inlet is smaller than the outer peripheral diameter of the twisting-stopping disc, the contact area of yarn strips and the twisting-stopping disc is reduced; the surrounding angle of the yarn strips and the twisting-stopping disc is also small; the false twisting effect is properly weakened, and thereby, the spinning twisting-increasing efficiency for a rotating cup is enhanced; the twisting-increasing efficiency is enhanced by 10 percent to 14 percent compared with the twisting-increasing efficiency of the existing twisting-stopping disc and the total quality level of yarn molding is increased.

Description

A kind of Nanel

The utility model relates to the twisting mechanism on the rotor spinning machine.

Rotor spinning is in twisting process at present, the resultant yarn actual twist does not reach the requirement of the theoretical design twist, twisting efficiency is on the low side, particularly use the Nanel of Φ 22mm, this Nanel sliver inlet port excircle diameter is identical with Nanel excircle diameter, it is horn-like that it is shaped as sphere, and sliver and Nanel contact-making surface are big, and rubbing action is also big, sliver and Nanel angle of contact are also bigger, false twist effect is strong excessively, and the false twisting twist is too big, and the resultant yarn actual twist is too much reduced, twisting efficiency is lower, generally about 86%, this Nanel has used for many years twisting efficiency at home, still generally uses so far.Weaving periodical " Shanghai textile technology " the 2nd phase of nineteen ninety-five " analysis and discussion of a BD200SN type rotor spinning machine twisting efficiency " literary composition has carried out analysis and discussion to the rotor spinning machine twisting efficiency, but proposes the concrete measure deal with problems.

The purpose of this utility model provides a kind of moderate reduction false twist effect, improves the Nanel of rotor spinning twisting efficiency.

For achieving the above object, the utility model comprises the neck of tubulose and the head that is connected as a single entity with it, its head is a rectangle disk, be provided with the sliver inlet port in it, below the sliver inlet port, be provided with in the tubular neck portions and its concentric horn-like doffing tube mouth that is communicated with, also be provided with external screw thread on tubular neck portions, its design feature is: it also has a circular table, and said sliver inlet port is the curved surface with the circular table smooth excessiveness.

In order to reduce sliver and Nanel angle of contact, reduce false twist effect, the excircle diameter of said sliver inlet port is the 33%-61% of Nanel excircle diameter; The axial length of said Nanel is 17.3mm-20.2mm; Said curved surface is ball-type curved surface or conical camber.

After adopting said structure, because the excircle diameter of sliver inlet port is littler than Nanel excircle diameter, therefore the contact area of sliver and Nanel reduces, the angle of contact of sliver and Nanel is also less, false twist effect suitably weakens, accomplish both to play the false twisting effect, do not make the loss of resultant yarn actual twist by force too much again, thereby improve the rotor spinning twisting efficiency because of the false twisting effect is crossed.After adopting said structure, twisting efficiency has improved 10%-14% than the twisting efficiency of existing Nanel, and the resultant yarn overall quality level increases, and has good society generalization and is worth.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:

Fig. 1 is a positive view of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the positive view of another embodiment of the utility model;

Fig. 4 is the positive view of known Nanel;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is a spinning organ spinning principle cutaway view.

Fig. 4 and Figure 5 shows that the Nanel that still generally uses now to have in the technology, this Nanel sliver inlet port excircle diameter is identical with Nanel excircle diameter, it is horn-like that it is shaped as sphere, and sliver and Nanel contact-making surface are big, and rubbing action is also big, sliver and Nanel angle of contact are also bigger, false twist effect is strong excessively, and the false twisting twist is too big, and the resultant yarn actual twist is too much reduced, twisting efficiency is lower, and twisting efficiency is generally about 86%.

In the utility model, in order to reduce false twist effect, improve the rotor spinning twisting efficiency, as depicted in figs. 1 and 2, comprise sliver inlet port 1, with sliver inlet port 1 concentric horn-like doffing tube mouth 2 and the circular table 3 that is communicated with, sliver inlet port 1 is the ball-type curved surface with circular table 3 smooth excessivenesses, the excircle diameter of said sliver inlet port 1 is the 33%-61% of Nanel excircle diameter, when using now general Φ 22mm Nanel, result of use the best, can make sliver press close to the plane and enter the ball-type curved surface by circular arc, because the excircle diameter of sliver inlet port is littler than Nanel excircle diameter, so the contact area of sliver and Nanel reduces, and the angle of contact of sliver and Nanel is also less, false twist effect suitably weakens, accomplish both to play the false twisting effect, do not make the loss of resultant yarn actual twist by force too much again, thereby improve the rotor spinning twisting efficiency because of the false twisting effect is crossed.After adopting said structure, twisting efficiency has improved 10%-14% than the twisting efficiency of existing Nanel, and the twisting rate generally can reach about 98%.

Fig. 3 is another embodiment of the utility model, and the structure of its structure and Nanel illustrated in figures 1 and 2 is basic identical, its difference be sliver inlet port 1 for and the tapered curved surface of circular table 3 smooth excessivenesses, can reach same result of use.

Fig. 6 is the utility model spinning organ spinning principle cutaway view, strip is drawn from the bar tube, deliver to carding cavity at feed roller with under feeding to plate gripping effect, by combing roller carding assembly single-fiber state, because cup 9 revolutions, air is discharged from steam vent 8, make and produce vacuum in the cup, force extraneous air-flow to mend from wind-supplying mouth and doffing tube 4, the filament that combing roller is resolved into is crossed cotton-conveying pipe 5 in company with this air communication and is entered rotor, air-flow is discharged from steam vent 8, and fiber slips in the fibre-condensing groove 7 along the cup wall, forms the cohesion yarn.Also be drawn onto when drawing yarn in the collection surface and connect with the cohesion yarn by doffing tube 4.Owing to cup 9 at a high speed rotation produces centrifugal force, make and draw yarn yarn tail and be attached at Nanel 6 planes and also smoothly enter sliver inlet port curved surface, be held the twisting resultant yarn, by delivery roller yarn is drawn winding shaping through Nanel 6 and doffing tube 4 from cup 9 then.Therefore control Nanel 6 axial lengths, equally the control false twist effect is played a positive role, when the axial length of Nanel 6 was between 17.3mm-20.2mm, the angle of contact of sliver and Nanel was less, and false twist effect suitably weakens, the raising twisting efficiency.

Claims

1, a kind of Nanel, comprise the neck of tubulose and the head that is connected as a single entity with it, its head is a rectangle disk, be provided with sliver inlet port (1) in it, in the tubular neck portions of sliver inlet port (1) below, be provided with and its concentric horn-like doffing tube mouth (2) that is communicated with, also be provided with external screw thread on tubular neck portions, it is characterized in that: it also has a circular table (3), and said sliver inlet port (1) is the curved surface with circular table (3) smooth excessiveness.

2, Nanel according to claim 1 is characterized in that: the excircle diameter of said sliver inlet port (1) is the 33%-61% of Nanel excircle diameter.

3, Nanel according to claim 1 is characterized in that: the axial length of said Nanel is 17.3mm-20.2mm.

4, Nanel according to claim 1 is characterized in that: said curved surface is the ball-type curved surface.

5, Nanel according to claim 1 is characterized in that: said curved surface is tapered curved surface.