CN212865110U

CN212865110U - Guiding assembly for fibers in main drafting area of roller drafting mechanism

Info

Publication number: CN212865110U
Application number: CN202021733734.8U
Authority: CN
Inventors: 陈伟雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-04-02
Anticipated expiration: 2030-08-11

Abstract

A guide assembly for fibers in a main drafting zone of a roller drafting mechanism comprises a middle roller, a middle-upper roller, an upper guide ring, a lower guide ring, an upper pin, a lower guide ring roller and a lower guide ring tensioning roller, wherein the middle roller is pressed on the middle roller and the lower guide ring roller simultaneously, a middle roller shaft is concave downwards at a channel part of a fiber strip, the middle roller is concave downwards to avoid clamping of the middle-upper roller and the middle roller to the fiber strip, the middle-upper roller and the lower guide ring roller form a clamping jaw for the fiber strip, a rear drafting zone of the drafting mechanism is formed by a jaw interval from the rear roller jaw to the middle-upper roller and a jaw interval from the middle-upper roller to the lower guide ring roller, a front drafting zone of the drafting mechanism is formed by a front roller jaw interval from the middle-upper roller to the lower guide ring roller, and the front, middle and rear jaws in the drafting mechanism are driven independently.

Description

Guiding assembly for fibers in main drafting area of roller drafting mechanism

Technical Field

The utility model belongs to the technical field of spinning, and relates to a roller drafting mechanism main drafting zone fiber guide component.

Background

In the component structure of the method and the component, a middle-upper roller is pressed on a middle roller and a lower guide ring roller to form two jaws, a fiber strip is fed through the jaws of the middle roller and the middle-upper roller and then enters a guide channel formed by the upper guide ring and the lower guide ring through the jaw formed by the middle-upper roller and the lower guide ring roller, the fiber strip is controlled by the jaws in the jaws of the middle roller and the middle-upper roller and the lower guide ring roller, the speeds of the two jaws cannot be completely consistent due to the existence of transmission resistance, the distance between the two jaws is small, and the fluctuation of the small difference of the speeds of the two jaws can also cause the fluctuation of finished yarn.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fibrous guide assembly in roller draft mechanism main drafting zone solves the problem that exists among the above-mentioned technique.

A guide assembly for the fibres in the main drafting area of roller drafting mechanism is composed of middle roller, middle-upper roller, upper guide ring, lower guide ring, upper pin, lower guide ring roller, lower guide ring tension roller, upper guide ring sleeved on middle-upper roller and upper pin, lower guide ring sleeved on lower pin, lower guide ring roller, lower guide ring tension roller, upper guide ring and lower guide ring supported by upper pin and lower pin to form guide channel, middle-upper roller pressing on middle roller and lower guide ring roller, middle-upper roller and lower roller for clamping fibre strip, and drive roller jaws for driving middle roller and upper guide ring, the middle-upper roller drives the lower guide ring roller to drive the lower guide ring and the upper guide ring to synchronously rotate, the lower guide ring rotates around the lower pin and the lower guide ring roller, a rear roller jaw to a jaw interval formed by the middle-upper roller and the lower guide ring roller form a rear drafting area of the drafting mechanism, a front roller jaw to a jaw interval formed by the middle-upper roller and the lower guide ring roller form a front drafting area of the drafting mechanism, and in the drafting mechanism, the front jaw, the middle jaw and the rear jaw are independently driven.

Furthermore, the lower pin is arranged between the middle front roller and the middle roller of the drafting mechanism, and the lower pin takes two adjacent roller bases as bases and is independently installed and positioned in sections.

Further, the lower guide ring roller is positioned between the lower pin and the middle roller, the lower guide ring roller takes the roller stand as a base or the lower pin as a base, two ends of the lower guide ring roller take the bearing as a fulcrum and can freely rotate around the axis of the lower guide ring roller, and in combination, the lower guide ring roller is driven by the middle and upper roller to rotate.

Furthermore, a lower guide ring tensioning roller is sleeved on the lower guide ring, and the gravity of the lower guide ring tensioning roller or the elasticity acting on the lower guide ring tensioning roller enables the lower guide ring surrounding the lower pin to keep tension.

Furthermore, one lower guide ring roller corresponds to 1-8 spindle positions.

Further, the upper guide ring is a nitrile rubber ring, and the lower guide ring is a nitrile rubber ring, or a grid ring, or a composite ring of the grid ring and rubber or polyester.

The utility model discloses the beneficial effect who realizes:

the utility model provides a fibrous guide assembly in roller draft mechanism main drafting zone, well last roller press simultaneously in well roller and guide down enclose the roller, nevertheless only guide down enclose the roller and keep silent the holding to the ribbon with well middle and upper roller, guide enclose the roller below the draft mechanism keep silent with well middle and upper roller for cutting apart, fall into two drafting zones, each keep silent the independent drive, eliminated the former guide assembly in the dual fluctuation difference of the speed of keeping silent of roller department to the influence that the strip produced futilely.

Drawings

FIG. 1 is a schematic cross-sectional view of a fiber guiding assembly and a front roller in a main drafting zone of a roller drafting mechanism according to the present invention;

fig. 2 is a schematic view of the nip between the middle roller and the middle and upper roller of the present invention.

Detailed Description

The technical solution of the present invention is described in detail below with a schematic structural diagram of a fiber guiding assembly and a front roller in a main drafting zone of a roller drafting mechanism. The examples of the present invention are provided only for illustrating the specific process, and the scale of the process is not limited by the examples.

Example one

Fig. 1 shows a schematic structural diagram of a front roller 1 and a fiber guide assembly of a main drafting zone of a roller drafting mechanism, the fiber guide assembly of the main drafting zone of the roller drafting mechanism comprises a middle roller 2, a middle upper roller 21, an upper guide ring 3, a lower guide ring 4, upper pins 5 and combined lower pins, the combined lower pins comprise a lower pin profile pipe 61, a lower guide ring roller 62 and a lower guide ring tension roller 63, the upper guide ring 3 is sleeved on the middle upper roller 21 and the upper pins 5, the lower guide ring 4 is sleeved on the lower pin profile pipe 61 of the combined lower pins, the lower guide ring roller 62 and the lower guide ring tension roller 63, the upper guide ring 3 and the lower guide ring 4 are respectively supported by the upper pins 5 and the combined lower pins, a guide channel D is formed by attaching the upper surfaces of the combined lower pins, the middle upper roller is simultaneously pressed on the middle roller and the lower guide ring roller, a nip J1 of the middle upper roller 21 and the middle roller 2 clamps the upper guide ring 3, the roller jaws J2 of the middle and upper rollers and the lower guide ring clamp the upper guide ring 3 and the lower guide ring 4, the transmission relationship of all parts in the assembly is that the middle roller 2 drives the middle and upper rollers 21 and the upper guide ring 3, the middle and upper rollers 21 drive the lower guide ring roller 62 to drive the lower guide ring 4 and the upper guide ring 3 to synchronously rotate, and the lower guide ring 3 rotates around the combined lower pin.

As shown in fig. 2, at the passage B of the fiber sliver, the middle roller shaft is concave downward, the shaft of the middle roller 2 is concave downward, so that the fiber sliver is prevented from being clamped by the middle roller 21 and the middle roller 2, in the drafting mechanism, a nip J2 formed by the middle roller 2 and the lower guide ring roller 62 divides the drafting area into a front zone and a rear zone, the front, the middle and the rear nips are driven independently, and the problem of the fluctuation of the sliver due to the speed difference of the double nips in the original scheme is solved.

Claims

1. A guide assembly for the fibres in the main drafting area of roller drafting mechanism is composed of middle roller, middle-upper roller, upper guide ring, lower guide ring, upper pin, lower guide ring roller, lower guide ring tension roller, upper guide ring sleeved on middle-upper roller and upper pin, lower guide ring sleeved on lower pin, lower guide ring roller, lower guide ring tension roller, upper guide ring and lower guide ring supported by upper pin and lower pin to form guide channel, middle-upper roller pressing on middle roller and lower guide ring roller, and features that the middle roller is concave downward and has a concave middle roller for clamping fibre strip by middle roller and its jaw, the middle-upper roller and lower guide ring are connected by roller to form a drive roller jaw for driving middle-upper roller and upper guide ring, the middle-upper roller drives the lower guide ring roller to drive the lower guide ring and the upper guide ring to synchronously rotate, the lower guide ring rotates around the lower pin and the lower guide ring roller, a rear roller jaw to a jaw interval formed by the middle-upper roller and the lower guide ring roller form a rear drafting area of the drafting mechanism, a front roller jaw to a jaw interval formed by the middle-upper roller and the lower guide ring roller form a front drafting area of the drafting mechanism, and in the drafting mechanism, the front jaw, the middle jaw and the rear jaw are independently driven.

2. The fiber guiding assembly of the main drafting area of the roller drafting mechanism as claimed in claim 1, wherein the lower pin is located between the middle front roller and the middle roller of the drafting mechanism, the lower pin is based on two adjacent roller bases, and the lower pin is installed and positioned independently in segments.

3. The fiber guiding assembly of the main drafting area of a roller drafting mechanism as claimed in claim 1, wherein the lower guiding ring roller is located between the lower pin and the middle roller, the lower guiding ring roller uses the roller stand as the base or the lower pin as the base, two ends of the lower guiding ring roller use the bearing as the pivot, can rotate freely around the axis of the lower guiding ring roller, in combination, the lower guiding ring roller rotates under the drive of the middle and upper rollers.

4. The fiber guide assembly of the main drafting zone of the roller drafting mechanism as claimed in claim 1, wherein the lower guide ring tension roller is sleeved on the lower guide ring, and the tension of the lower guide ring surrounding the lower pin is maintained by the gravity of the lower guide ring tension roller or the elastic force acting on the lower guide ring tension roller.

5. The fiber guiding assembly of the main drafting zone of a roller drafting mechanism as claimed in claim 1, wherein one lower guiding ring roller corresponds to 1-8 spindle positions.

6. The fiber guide assembly of the main drafting zone of a roller drafting mechanism as claimed in claim 1, wherein the upper guide ring is a nitrile rubber ring, and the lower guide ring is a nitrile rubber ring or a grid ring.