CN211497910U

CN211497910U - Roving frame

Info

Publication number: CN211497910U
Application number: CN202020053867.4U
Authority: CN
Inventors: 邱丽遐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-09-15
Anticipated expiration: 2030-01-11

Abstract

The utility model provides a new fly frame. It can be a double-sided roving frame or a single-sided roving frame. It has a new innovation point that: the sliver cans, the sliver guide frame and the yarn forming units on each side are arranged on the same side, and the working area of an operator is arranged between the yarn forming units on each side and the sliver cans on the same side; it achieves that the operator can handle the operation of each yarn forming unit simultaneously on the same side, including the sliver joint and the creeling work. Particularly, the double-side roving frame is characterized in that the yarn forming units on two sides are arranged on two sides of the main frame, and the sliver cans are arranged on the same side of the yarn forming units. The method is characterized in that the method of vortex air flow is adopted to add twist to the drafted slivers through the nozzle, the defect of speed limitation of the existing method for producing roving slivers by twisting through a rotary flyer is overcome, and a novel method for forming high-speed roving is realized.

Description

Roving frame

Technical Field

The utility model relates to a textile machinery, especially fly frame.

Background

In the field of roving frames, the roving frame widely used at present is a roving yarn forming mechanism on one side and a sliver can on the other side, so that the user friendliness is not high. Because the sliver cans are arranged on one side of the machine, the yarn forming units are arranged on the other side of the machine, and the sliver cans and the sliver broken ends are changed every time, an operator needs to wind around a sliver guide frame area on the other side of the roving frame, so that time and labor are wasted, and the operator cannot know the real-time state of each roving spindle position. Another drawback is that the sliver cans are also gathered together, wasting space and causing inconvenience in handling the cans.

In the field of roving frames, on the other hand, it is known that the twisting of the strands of the roving frames, which are currently the mainstream, is carried out by means of a rotating flyer, which limits the production speed of the current roving frames, the flyer generally not having a rotational speed exceeding 3500 rpm.

In recent years, a novel vortex spinning roving frame, such as patent application number CN106460252A, has overcome the limitation of flyer twisting strands of the conventional roving frame, and the production speed of the roving frame is greatly improved by adopting the twisting mechanism of the vortex nozzle. However, one drawback of this patent is that the sliver can is still fed from the other side of the machine, and every time the sliver can is changed or an accidental sliver breaks at the can (which often occurs in practical production), the operator needs to walk from one side of the machine to the other side, as with the conventional roving frame, which is not friendly to the operator, wastes time and labor, wastes space, and the operator cannot know the spindle position state of each roving in real time. With the application of automation and intellectualization in spinning mills, the arrangement mode of the sliver cans also limits the popularization of the automatic sliver can transportation system.

Disclosure of Invention

In order to overcome the shortcoming in the actual production at present, the utility model provides a new fly frame. It can be a double-sided roving frame or a single-sided roving frame.

It has a new innovation point that: the can and the yarn forming unit on each side are arranged on the same side, and the working area of an operator is arranged between the yarn forming unit on each side and the can on the same side; it realizes that an operator can simultaneously process the strand joint and the creeling work of each yarn forming unit at the same side.

Another new innovation is that the drafted fiber strand is twisted by a certain twist through a nozzle by adopting a vortex airflow method and then is wound into a roving bobbin for the next spinning frame. The method overcomes the defect of the limitation of the speed of the prior roving strip production by twisting through a rotary flyer, and realizes a novel method for forming high-speed roving.

The utility model discloses fly frame's working process: in each yarn forming unit, the slivers are fed into the drafting mechanism from the sliver can 1 at the same side of the yarn forming unit through the cotton guide roller without external drafting, and the slivers enter the vortex twisting mechanism after being drafted: and applying protective twist required by the roving to the strands, and winding the roving on a roving tube through a yarn guide pressing roller under the action of a winding groove drum to form the roving for a spinning frame in the next process.

As a preferred embodiment of the present invention, the roving frame is a double-sided (surface) roving frame: the yarn forming unit and the fiber strip can are arranged on the same side of each side (surface), and the working area of an operator is arranged between the yarn forming unit and the can. Each side is composed of adjacent independent yarn forming units.

As a preferred embodiment of the present invention, the roving frame is a double-sided (surface) roving frame: each side can independently produce different roving varieties and counts. It is preferred that when one side is stopped or serviced, the other side can still be produced normally.

As a preferred embodiment of the present invention, the roving frame is a single-side (surface) roving frame, the single-side (surface) yarn forming unit and the sliver can are located on the same side, and the working area of the operator is located between the yarn forming unit and the sliver can. The single side is composed of adjacent independent yarn forming units.

As a preferred embodiment of the present invention, the yarn forming unit of the roving frame comprises a drafting mechanism, a vortex twisting mechanism and a roving forming mechanism.

As a preferred embodiment of the present invention, the yarn forming units, the drafting mechanism, the vortex twisting mechanism and the roving forming mechanism of the roving frame may be mechanically completely independent, and each adjacent yarn forming unit is separated from each other, and does not affect the operation of each other.

As a preferred embodiment of the present invention, the yarn forming mechanism of the roving frame adopts a bobbin forming mode, the winding bobbin can be driven by a belt as a whole and also can be driven by a single motor, and the roving is wound and formed by the relative motion of the roving bobbin on the winding bobbin.

The utility model discloses an useful part is:

1. compared with the traditional single-side roving frame, the double-side high-speed vortex spinning roving frame has the advantages that the sliver penetrating operation is not needed to be carried out behind the machine. The workload of operators is saved, and a more efficient and rapid method is provided.

2. In particular, the drive units of the double-sided high-speed vortex-spinning roving frame for the double-sided drafting, twisting and winding system are completely mechanically decoupled. This means that the two-sided yarn-forming system can spin different types of roving. It also means that even if one drafting system has to be shut down due to a production failure, another drafting system can be produced without interruption. The independence of the mechanical drive couplings of the two yarn-forming systems involved in the production can be achieved without mutual influence, in particular without the use of a common drive shaft. Due to the characteristics, the flexibility of products produced by the whole machine is greatly increased, the whole efficiency of the whole machine can be comparable to the efficiency of two single-sided roving frames, but the required space is greatly reduced. Other machine parts which are otherwise independent of the drive can of course be used together, so that cost advantages can also be achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the patent, and not limit the patent. In the drawings:

fig. 1 is a schematic cross-sectional view of a conventional flyer twisting roving frame.

Fig. 2 is a schematic cross-sectional view of a roving frame according to a preferred embodiment of the present invention.

Fig. 3 shows a structure of a yarn forming unit of the present invention.

Description of reference numerals: 1. a can; 2. a whisker strip; 3. a cotton guide roller; 4. yarn guide compression roller; 5. roving; 6. a drafting mechanism; 7. a vortex twisting mechanism; a twisting chamber; 9. a nozzle head; 10. a flyer; A. an operator; B. one side; b', single-sided; C. a yarn forming unit; and C' yarn forming unit.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the resultant yarn of a conventional flyer-twisting roving frame. The sliver 2 is drawn from the sliver can 1 and fed via the sliver guide roller 3 to the drafting mechanism 6, the fine sliver required for the drawing tail is simultaneously wound to form a roving 5 under the twisting action of the flyer 10. The working space of the operator a is not only on the right side of the drafting arrangement 6 (right side of the figure); the left side (left side in the figure) of the detour drafting mechanism 6 is also included to deal with the replacement of the can 1 and the sliver joint. Time and labor are wasted, and the workload of an operator A is increased.

Fig. 2 is a schematic diagram of a preferred embodiment of the present invention. The double-sided roving frame is a structural schematic diagram of the double-sided roving frame. The can 1 and the yarn-forming unit (C, C ') of each side (B, B') of the machine are on the same side. The working area of the operator a is between the can 1 and the yarn forming unit (C, C'). This has the advantage that the operator a can easily perform the operations of the can 1 and the sliver 2 and the yarn-forming unit (C, C'), including splicing, changing, cleaning and maintenance, etc., without having to go to the other side of the machine. The whole spinning process comprises the following steps: the strands 2 drawn from the sliver can 1 pass through a cotton guide roller 3 and enter a drafting mechanism 6, the drawn strands 2 enter a vortex twisting mechanism 7, are twisted by air flow to form roving with required twist, and then pass through a yarn guide press roller 4 and are wound to form the roving 5.

Fig. 3 is a schematic view of a yarn forming unit (C) according to a preferred embodiment of the present invention. The device comprises a drafting mechanism 6, a vortex twisting mechanism 7, a cotton guide pressing roller 4 and roving yarns 5. Wherein the vortex yarn forming mechanism 7 comprises a nozzle head 9 and a twisting chamber 8. The strands 2 fed from the can 1 enter the drafting mechanism 6, where they are stretched to the desired sliver ration (count) of the spinning frame, which can be realized by setting different drafting gauge and drafting ratio, and then the drafted strands enter the nozzle head 9, in the twisting chamber 8, under the action of the high-speed rotating air flow, forming protective twist; the required different twists can be applied to the fiber strands by controlling the air flow; the twisted fiber strands 2 are wound into rough yarns 5 after passing through a yarn guide compression roller 4, so that the next process is practical.

The above embodiments are only exemplary embodiments of the present invention, and do not limit the scope of the present invention as defined by the claims. The skilled person can make various modifications or equivalent substitutions to the invention within the spirit and scope of the invention, and it is not necessary or necessary to exhaust all embodiments herein, and such modifications or equivalent substitutions should also fall within the scope of the invention.

Claims

1. A roving frame, comprising a sliver can (1) for feeding slivers (2), a cotton guide roller (3), a drafting mechanism (6), a vortex twisting mechanism (7) and a roving (5) forming mechanism, and having yarn forming units (C, C') arranged adjacent to each other, characterized in that: each can (1) is arranged on the same side of the yarn forming unit (C, C '), the working space of the operator (A) on each side is between the can (1) on the same side and the yarn forming unit (C, C '), and each yarn forming unit (C, C ') is provided with an eddy current twisting mechanism (7) for twisting.

2. A roving frame according to claim 1, characterised in that: by using a double-sided yarn forming unit (C, C '), the can (1) on each side is arranged on the same side of the yarn forming unit (C, C '), and the working space of the operator (A) on each side is between the can (1) on the same side and the yarn forming unit (C, C ') on the same side.

3. A roving frame according to claim 1, characterised in that: with a single-side yarn forming unit (C, C '), the side can (1) is arranged on the same side of the yarn forming unit (C, C '), and the working space of the operator (A) on the side is between the can (1) on the same side and the yarn forming unit (C, C ') on the same side.

4. A roving frame according to claim 2, characterised in that: the yarn forming units (C, C') on each side are independent of each other, and the stoppage of one side does not affect the normal production of the other side.

5. The roving frame according to claim 4, characterized in that: one side and the other side can produce roving with different raw materials, counts and twists.