CN113728131B

CN113728131B - Spindle tape driving spinning machine

Info

Publication number: CN113728131B
Application number: CN202080022935.3A
Authority: CN
Inventors: 罗萨里奥·阿森扎; 马西莫·加利
Original assignee: Marzoli SpA
Current assignee: Marzoli SpA
Priority date: 2019-03-19
Filing date: 2020-03-17
Publication date: 2023-05-09
Anticipated expiration: 2040-03-17
Also published as: CN113728131A; JP7425085B2; IT201900003983A1; EP3942099A1; EP3942099B1; WO2020188480A1; JP2022526306A

Abstract

A spindle tape drive spinning machine (1) comprises an apparatus for handling spindles, which apparatus is provided with: a main shaft (30); a plurality of strips (34), each strip being engaged with a spindle of its own spindle group (12A, 12B) i); and a plurality of electric motors (50), wherein each motor (50) is operatively connected to a particular engagement portion (52) of the spindle (30) to place the spindle (30) in rotation.

Description

Spindle tape driving spinning machine

Technical Field

The object of the present invention is a spindle tape drive spinning machine for a spinning line for obtaining a yarn package from a roving bobbin, typically from a roving frame.

Background

Spinning machines are known that operate roving bobbins in order to obtain a yarn package from the roving after drawing and twisting.

To this end, the spinning machine comprises: a gantry extending along a longitudinal axis, on which the roving bobbins are suspended; a pulling device arranged below the gantry and formed by a set of rollers having a longitudinal extension, between which the roving passes in order to be pulled; and two opposite banks (banks, groups) each supporting a spindle rotating about its vertical axis, the spindles being in a row along the longitudinal axis, the drawn and twisted yarn being wound on the spindles.

In a spindle belt driven spinning machine, the spindle is placed in rotation about a vertical axis by a handling device comprising a main shaft extending along the whole machine and provided with a plurality of pulleys spaced apart longitudinally. Each pulley supports a belt (or band) that engages four spindles, two spindles per bank (for this type of spinning machine the oz-Saxon name is effectively a "four-spindle spinning machine"). The handling device then comprises an electric motor for rotating the spindle, which is accommodated in the tail of the spinning machine.

The current trend in the industry is to provide a very large number of spindles for the creels to increase the productivity of the spinning line.

However, the increase in the number of spindles increases the length of the spinning machine and thus also the length of the spindle, which presents drawbacks in the functioning of the spinning machine and in other aspects such as the execution of maintenance work.

Disclosure of Invention

The object of the present invention is to devise a belt driven spinning machine which meets the industry needs and overcomes the drawbacks mentioned with reference to the prior art.

Drawings

The characteristics and advantages of the spindle tape drive spinning machine according to the invention will become clear from the following description, given by way of non-limiting example, and according to the accompanying drawings, in which:

fig. 1 shows a part of a tape-driven spinning machine according to an embodiment of the invention;

FIG. 2 is a schematic side view of the spindle tape drive spinning machine of FIG. 1;

figure 3 depicts the zone of the tape-driven spinning machine of figure 1;

FIG. 4 is a schematic view of the tape drive spinning machine of FIG. 1; and

fig. 5 is a schematic view of a tape-driven spinning machine according to another embodiment of the invention.

Detailed Description

With reference to the accompanying diagram, 1 indicates a spinning machine of a spinning line as a whole, capable of obtaining a yarn package from a roving bobbin S.

The spinning machine 1 comprises a gantry 2 extending along a longitudinal axis X, on which a predetermined number of bobbins S are suspended.

The spinning machine 1 further comprises a drawing device 4 arranged below the gantry 2.

The pulling device 4 includes: a lower longitudinal drum 6, typically three or four motor-driven drums, which are longitudinally continuous or separated in adjacent sections; and a plurality of upper rollers 8, typically idler rollers, coupled under pressure to the lower drum 6 so as to be actuated to rotate.

Each upper roller 8 coupled to the lower drum 6 defines a spinning point; for each spinning point, the roving passes between the upper roller 8 and the lower roller 6 so as to be drawn under the effect of the peripheral speed of the lower roller, which increases from upstream to downstream.

Downstream of the drawing device 4, the spinning machine 1 further comprises a bank 10 supporting along a longitudinal axis a row of spindles 12, on which the drawn and twisted yarn is wound, rotating about its own vertical axis.

The spinning machine 1 also comprises a ring rail 14 with a longitudinal extension, provided with a reciprocating vertical movement, and supporting a ring 16 coaxial with the respective spindle 12 for winding the yarn on the tube.

Finally, the spinning machine 1 is provided with a frame 18, preferably only one frame, which is supported on the bottom layer T for supporting the main components and in particular for supporting the traction means 4, the warp frame 10 and the ring rail 14.

In particular, the spinning machine 1 comprises two opposite banks 10A, 10B along which

respective spindles

12A, 12B are arranged, longitudinally aligned between the head and the tail.

The spinning machine 1 further comprises a handling device for actuating the

spindles

12A, 12B to rotate.

The handling device comprises a main shaft 30 having a longitudinal extension between the head and the tail of the spinning machine and arranged between the two banks 10A, 10B.

The spindle 30 preferably extends seamlessly between the head and tail of the spinning machine. For example, the spindle 30 is composed of a plurality of shaft portions which are coaxial with each other and are rotationally fixed to each other, for example, by a rigid joint.

According to an additional variant, the spindle 30 consists of coaxial shaft portions that are not connected to each other (i.e. separate and mechanically independent).

The processing apparatus further comprises a plurality of pulleys 32, each coaxial with the spindle and supported by and rotationally fixed to one of the shaft portions.

The processing apparatus further comprises a plurality of strips 34, each attached to a specific pulley 32 and to a specific spindle group (12A, 12B) i comprising the spindles 12Ai of the first bank 10A and the spindles 12Bi of the second bank 10B (i= … n, where "n" is the total number of spindle groups of the spinning machine).

For example, each spindle group (12A, 12B) i generally comprises four spindles, two belonging to the first bank 10A and two belonging to the second bank 10B.

The same number of spindles of the first warp frame and the second warp frame preferably belong to the same spindle group.

Furthermore, the spindle group (12A, 12B) i preferably comprises the spindles 12Ai of the first bank 10A and the corresponding spindles 12Bi of the second bank 10B, i.e. the spindles having the same sequence number (for example, the first and second spindles of the first bank, and the first and second spindles of the second bank).

According to a preferred embodiment, the processing apparatus comprises a plurality of actuators 38, wherein each actuator 38 engages with a particular strip 34 in order to guide it and transfer it from a particular pulley 32 to a spindle 12Ai, 12Bi of a particular spindle group (12A, 12B) i.

Each transmission 38 comprises a belt tensioning group 40 and a pair of

rollers

42A, 42B for diverting the strip 34 to the spindles 12Ai of the first bank 10A and to the spindles 12Bi of the second bank 10B, respectively.

The processing apparatus further comprises a plurality of electric motors 50 operatively connected to the spindle 30 for placing the spindle in rotation about its axis.

For example, the drive shaft of the motor 50 is offset relative to the rotational axis of the main drum 30 and is connected to the engagement portion 52 of the main shaft 30 by a motor strap 54.

According to an additional embodiment (fig. 5), the drive shaft of the motor 50 is coaxial with the main drum 30 and is connected by means of a mechanical connection to the engagement portion 52 of the main shaft 30.

According to another additional embodiment (not shown), some of the motors are offset from the main drum and some of the motors are coaxial with the main drum.

At least one motor 50 of the plurality of motors is preferably connected to an engagement portion 52 of the spindle 30 at: at an intermediate axial position of the spindle 30, i.e. between the head and tail.

Thus, according to one embodiment, the treatment device is provided with an electric motor arranged in the tail portion and an electric motor arranged in the head portion.

According to another embodiment, the treatment device is provided with an electric motor arranged in the tail part (and/or in the head part), and at least one additional electric motor arranged in an intermediate position.

According to a further additional variant, the treatment device is provided with two or more electric motors, all arranged in an intermediate position.

Furthermore, the processing device preferably comprises a single electric drive 60 for driving all of the plurality of electric motors.

According to one embodiment, the processing device comprises a plurality of electric drives for electrically driving the specific motor.

Finally, the spinning machine 1 comprises a control group 70 for managing the spinning machine 1, comprising a management panel and a single logic unit 72, such as a CPU or PLC, which can be used by the operator to manage the functions of the whole spinning machine 1.

The spinning machine 1 further comprises a drawing management device operatively connected to the drawing device for logically managing the drawing device.

Furthermore, the spinning machine 1 comprises spindle management means operatively connected to the drive 60 for logically managing the motor 50.

Furthermore, the spinning machine 1 comprises ring plate management means (rail management means ) for logically managing the ring plates 14 of the whole spinning machine 1.

The traction management device, spindle management device and ring plate management device are operatively connected to the logic unit 72 of the control group 70.

Innovatively, the spinning machine according to the invention overcomes the drawbacks mentioned with reference to the prior art.

In particular, the spinning machine according to the present invention advantageously makes it possible to provide a large number of spindles without using a high-power motor, which is known to have a number of drawbacks such as its size, difficulty in management and maintenance, increased heat dissipation concentrated in delimited areas, and therefore the need to remove it.

Furthermore, the present invention advantageously overcomes drawbacks such as excessive twisting of the spindle and makes it possible to reduce both the longitudinal and transverse dimensions of the tail.

It is obvious to a person skilled in the art that the spinning machine described above can be modified in order to meet specific needs; such modifications are also included within the scope of protection defined by the following claims.

Claims

1. Spinning mechanism (1) extending along a longitudinal axis (X) between a head and a tail, comprising:

-a first warp creel (10A) and a second warp creel (10B) opposite to the first warp creel (10A), the first warp creel comprising a plurality of first spindles (12A), the second warp creel comprising a plurality of second spindles (12B), wherein a plurality of spindle groups are defined, wherein each spindle group ((12A, 12B) i) comprises a predetermined number of first spindles and a predetermined number of second spindles;

-a driving device comprising:

a) -a main shaft (30) extending along a longitudinal axis (X), consisting of a plurality of shaft sections coaxially and longitudinally laterally joined, arranged between the first warp yarn frame (10A) and the second warp yarn frame (10B), the main shaft having a plurality of axially spaced-apart engagement portions (52);

b) A plurality of pulleys (32), each pulley being coaxial with the spindle, supported by and rotatably coupled to a respective shaft section;

c) A plurality of straps (34), wherein each strap (34) is attached to a respective pulley (32), wherein each strap (34) engages spindles of a respective spindle group ((12A, 12B) i) to rotationally move them;

d) A plurality of electric motors (50), wherein each electric motor is operatively connected to an engagement portion (52) of the spindle to rotate the spindle (30);

wherein the drive device comprises a single electric drive (60) to drive all of the plurality of electric motors;

wherein the electric drive (60) is operatively connectable to spindle management means for logically managing the electric motor;

the spinning mechanism further includes:

-a control group (70), the control group comprising:

a management panel usable by staff to manage the operation of the whole spinning mechanism (1); and

-a single logic unit (72) operatively connectable to said spindle management device for the logic control of said spinning mechanism (1).

2. Spinning mechanism according to claim 1, wherein at least one of the electric motors is connected to an engagement portion (52) of the spindle (30) at: the position is an intermediate axial position of the spindle (30) between the head and tail portions.

3. Spinning mechanism according to claim 1 or 2, wherein the shaft sections are connected to each other for rotatable coupling.

4. Spinning mechanism according to claim 1 or 2, wherein the shaft sections are structurally separate from each other and each shaft section has at least one of the engagement portions (52).

5. Spinning mechanism according to claim 1 or 2, wherein the drive device comprises guiding means (38), wherein each guiding means (38) engages with a respective strip (34) to guide the strip and rotate the strip from the spindle (30) to the spindles of the respective spindle group ((12A, 12B) i).

6. The spinning mechanism of claim 1, comprising: -a pulling device (4) for each bank (10A, 10B); and a pull management device operatively connected to the pull device and the logic unit for logic control of the pull device.

7. Spinning mechanism according to claim 1 or 6, comprising: a ring plate (14) for each bank (10A, 10B); and a ring plate management device operatively connected to the logic unit for logic control of the ring plate (14) of the whole spinning mechanism (1).

8. Spinning mechanism according to claim 1 or 2, wherein at least one of the electric motors (50) has a motor axis offset with respect to the rotation axis of the spindle (30).

9. Spinning mechanism according to claim 1 or 2, wherein at least one of the electric motors (50) has a motor axis coaxial with the rotation axis of the spindle (30).