JP6985111B2 - Open-end spinning equipment with dust remover - Google Patents

Description

The present invention relates to an open-end spinning machine in which a large number of workstations equipped with a sliver opening device and an open-end spinning device having a dust discharge port are arranged side by side. The machine's longitudinal dust remover is located below the dust outlet.

In open-end spinning equipment, the sliver is fed to the sliver defibration equipment before the individual fibers reach the spinning rotor. The sliver defibration device is open downwards. The opening acts as a dust outlet.

In the DE 198 27 610 B4 or DE 102 22 012 A1, a method is known to place a dust remover extending in the longitudinal direction of the machine under the dust outlet. The dust removal means can be configured as a conveyor belt extending in the longitudinal direction of the machine that captures and discharges the dust generated during the opening of the sliver. Dust particles fall onto the conveyor belt and are transported from there to the pneumatic dust suction device on the mechanical end frame.

Over time, due to the accumulation of dust, fiber lumps are formed near the dust outlet and sucked back to the sliver fiber-spreading device near the fiber-spreading roller, and are placed on the conveyor belt to prevent significant interference with the spinning process. A brush-like cleaning element is placed on the to prevent the formation of fiber lumps as its bristles reach the area of the dust outlet.

As an alternative to the conveyor belt, use a carriage with a sweep-out surface that is movable in the longitudinal direction of the machine and can carry dust into the grooves of the machine end frame, as shown in DE 102 22 012 A1. can also do. A brush-like cleaning element can be attached to this carriage at the same time. It has been proposed to adjust the carriage speed according to the amount of dust particles or the position of the carriage to ensure that the amount of dust particles and dust particles from the dust remover are removed.

An object of the present invention is to guarantee the disposal of dust with high reliability even in a long machine or a larger number of workstations.

According to the present invention, this problem is solved by an open-end spinning machine in which a large number of workstations equipped with a sliver opening device and an open-end spinning device having a dust discharge port are arranged side by side. In the present invention, a dust remover extending in the longitudinal direction of the machine is arranged under the dust outlet, and the dust remover is designed to transport dust particles to a pneumatic dust suction device of a machine end frame. I am. In the present invention, at least one intermediate unit is further placed between the workstations, which has a pneumatic dust suction device for sucking dust particles from the dust remover.

Further dust suction devices can be easily installed in the intermediate units according to the invention placed between workstations. An additional dust suction device located in the area of the workstation shortens the path that the dust remover transports the dust particles and avoids significant accumulation of dust particles. In this way, dust particles can be removed reliably and quickly.

Preferably, the intermediate unit is configured as an alternative to one of the workstations. This configuration of the intermediate unit is particularly advantageous as it does not require modification of the existing structure of the open-end spinning machine or its mechanical frame. In addition, it can be easily retrofitted with equipment that has already been delivered.

Preferably, the width of the intermediate unit is less than or equal to the width of the workstation. This is the minimum requirement for workstation compatibility. However, the most preferred for compatibility is when the widths of the intermediate units and workstations are the same.

Intermediate units that are narrower than the workstation are preferably placed in the intermediate section. Multiple workstations are grouped together. These groups are called sections. That is, the intermediate unit can be placed in the intermediate section between the two sections of the workstation. The advantage here is that the width of the middle section should be the same as the middle unit. In this case, the width of the intermediate unit should be minimized so as not to waste the effective area of the machine. When placing multiple intermediate units over the length of the machine, the narrower width of the intermediate units is important, so placement in the middle section makes sense.

Intermediate unit and workstation compatibility is preferably achieved by having the intermediate unit and workstation have the corresponding fixing elements in the fixation to the machine frame. As such a fixing element, a hook that can be hung on the corresponding rail on the machine frame can be adopted.

According to an advantageous embodiment of the invention, an additional pneumatic dust suction device is connected to the vacuum source of the workstation. With such a configuration, there is no need to add a vacuum source for additional pneumatic dust suction equipment.

The present invention will be described in detail based on the examples shown in the figure.

The following are shown.
Front view of an open-end spinning machine in which several open-end spinning machines according to the present invention are arranged side by side, which has a dust removing device arranged under the sliver fiber-spreading device.

FIG. 1 shows a front view of a part of workstations 20 arranged in a row in an open-end spinning machine 1. As is known, in many cases, in the modern open-end spinning machine 1, hundreds of such workstations are arranged side by side.

Workstation 20 each contains one open-end spinning device 2.
This already known, for example, the open-end spinning device 2 described in DE 195 24 837 A1 has a rotor housing that is sucked by the rotor rotating at high speed. The rotor housing, which is not shown in FIG. 1 and opens forward, is closed by a cover element, the so-called swivel cover 3, during spinning. The swivel cover 3 is also equipped with a sliver opening device 4.

At that time, the sliver opening device 4 for separating the introduced sliver 9 into individual spinable yarns is the same as usual, in which the opening roller 6 rotating in the opening roller housing 5, the supply roller 7 and the front thereof. It has a feed trough with a sliver compressor 8. Further, the fiber-spreading roller housing 5 of the sliver fiber-spreading device 4 has a dust discharge port 10 for discharging the dust component generated during the fiber-spreading of the sliver.

Below the dust discharge port 10, a dust removing device 11 extending to the entire machine is arranged, and the duct structure 13 thereof is equipped with an endless dust transport belt 12. As usual, this duct structure 13 is composed of a dust removal duct 14 that opens upward and a return duct 15 that is placed under the dust removal duct 14. The endless dust transfer belt 12 is driven by a variable electric motor (not shown).

Of the endless dust transport belt 12, a cleaning carriage 16 is located above the portion of the dust removal duct 14, which is frictionally driven by the dust transport belt 12 during operation. The cleaning carriage prevents dust particles from accumulating in the dust outlet 10. The dust particles discharged from the dust discharge port and peeled off by the cleaning device fall on the dust removal belt 12 and are carried away toward the end of the machine.

The open-end spinning machine 1 has a machine end frame at the end of the machine, which is not shown in the figure, which, as is well known, sucks dust particles carried by the dust transport belt 12. It has a built-in pneumatic dust suction device.

In the open-end spinning machine 1 shown in FIG. 1, an intermediate unit 17 equipped with an additional pneumatic dust suction device 18 is arranged between workstations 20. Further intermediate units 17 can be distributed and placed throughout the machine. The dust suction device 18 is directed to the dust removal belt 12 and sucks dust particles carried by the dust removal belt 12.

In the illustrated embodiment, the intermediate unit 17 is designed to be mounted in place of workstation 20, so that it can be mounted in place of workstation 20. The width of the intermediate unit 17 is the same as that of the workstation 20. Fixing the intermediate unit 17 to the machine frame is done in the same way as fixing the workstation 20. The dust suction device 18 is connected to the vacuum source of the workstation. The vacuum supply to the dust suction device 18 is performed by the vacuum supply of the suction nozzle (not shown in the figure). The swivel suction nozzle of the workstation 20 is used to capture the bobbin yarn after a spin break and transfer it to the open-end spinning device 2 to resume spinning.

Claims (4)

In an open-end spinning machine (1) in which a large number of workstations (20) equipped with an open-end spinning device (2) having a sliver fiber opening device (4) equipped with a dust discharge port (10) are arranged adjacent to each other. Therefore, a dust removing device (11) extending in the longitudinal direction of the machine is arranged under the dust discharging port (10), and the dust removing device (11) puts dust particles in the region of the machine end frame. Another pneumatic dust suction device configured to suck dust particles from the dust removal device (11) between the workstations (20) in the one configured to be delivered to the pneumatic dust suction device. At least one intermediate unit (17) having (18) is arranged and
An open-end spinning machine (1) characterized in that an intermediate unit (17) can be mounted in place of a workstation (20). The open-end spinning machine (1) according to claim 1 , wherein the width of the intermediate unit (17) is the same as or smaller than the width of the workstation (20). The open-end spinning machine (1) according to claim 1 or 2 , wherein the intermediate unit (17) and the workstation (20) have corresponding fixing elements for fixing to the machine frame. The open-end spinning machine according to any one of claims 1 to 3 , wherein another pneumatic dust suction device (18) is connected to the vacuum source of the workstation (20).

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