CN1969069B - Apparatus and method for applying finish to filaments - Google Patents

Abstract

The invention relates to a device for applying a preparation to a thread, comprising a housing (2) having an inlet (3) and an outlet (6) for the thread (1), and comprising a preparation device (4) arranged in the housing (2). The device according to the invention is characterized in that the housing (2) is divided at the inlet and outlet openings (3, 6) for introducing the thread (1) into the housing (2), the housing division and/or the inlet and outlet openings (3, 6) being sealed. A corresponding method for applying a preparation to the filaments is also proposed.

Description

Apparatus and method for applying finish to filaments

technical field

The invention relates to a device and a method for applying a finishing agent to filaments. The device has a housing, the device has inlets and outlets for the filaments and an oiling device arranged in the housing.

Background technique

There are various known methods and possibilities for applying finishes to filaments or yarns. Application is carried out, for example, by the yarn being guided by a roller which rotates through an oil bath and moistened with oil. Another possibility is that the yarn travels on an oiled pin. The pin has a hole through which oiling agent is introduced, and the yarn is oiled by contact with the pin. There is also a method in which the oil finish is applied by spraying an oil mist or by deforming the spray in combination with the input oil.

One such device is described in DE10220508A1. The air-jet texturing oiling device is housed in a housing that can be opened for spinning-up of filaments. A curved tube is provided below the housing, which has a penetration slot for threading-in. This tube is used to return excess finish. The jet texturing nozzle has a penetration slot into which the filaments can be placed. The nozzles also remain open during operation. The advantage of this device is that the yarn monofilaments are thoroughly mixed with the oiling agent by air jet texturing in combination with oiling. The disadvantage of this construction is that the air-jet texturing nozzle has an open yarn channel, which does not ensure that the filaments are always evenly covered with air/oil. Furthermore, this construction has the disadvantage that excess oil mist or lubricant is blown out due to the opening gaps of the housing and the tube.

DE 10 205 005 A1 describes an oiling device in which the oiling agent is applied by spraying. The dosing adapted to the yarn takes place by means of a baffle which blocks a part of the jet so that it cannot reach the yarn. Excess oiling agent is collected in the injection box via an oil catcher and returned to the oil circulation circuit via a drain. The disadvantage of this construction is that more oil than needed is brought into circulation and not all of the excess oil mist is captured by the oil catcher plate, so a portion of the oil mist escapes through the inlet and outlet of the injection box. Another disadvantage is that, by means of spraying, oiling is only carried out on the surface, and the oil is not completely mixed with the yarn filaments.

Especially at high spinning speeds the yarn does not sufficiently absorb the oiling agent through surface oiling, which can lead to malfunctions during processing and in subsequent subsequent processing.

Contents of the invention

The object of the present invention is to provide a finishing device, in which the finishing agent is delivered to the yarn with precise metering and mixed with the yarn, the device is designed so that excess finishing agent or oil The fog does not escape from the installation, but is exported to be reused.

This object is achieved by the following devices and methods.

上油。通过将壳体的在入口和出口处分开，壳体可以通过一摆动运动或直线运动沿长丝穿行方向打开。The present invention relates to a device for applying oil to filaments. The device has a housing with an inlet and an outlet for the filaments. An oiling device is arranged in the housing. According to the invention, the housing is divided at the inlet and outlet, so that the filaments can be inserted into the housing without problems. The inlet and outlet are designed to provide a seal around the filaments and there is an air jet texturing device behind the oiling device in the direction of travel of the filaments. By separating the housing it is avoided that the filament has to pass through a small hole in the housing, be guided through the housing and be led out of the housing again at the end of the housing. In the present invention, such a large effort is no longer necessary, since the housing is separated in the region of the inlet and outlet and can be opened here. In the open state of the housing, the filaments are inserted into the housing transversely to the direction of travel, and the housing is then closed again. Therefore the filaments are prepared especially with processing oils

oil. By separating the housing at the inlet and outlet, the housing can be opened in the direction of thread travel by means of a pivoting or linear movement.

In addition to the easy threading of the filaments into the housing, there is the further advantage over the prior art that the housing is substantially completely closed during oiling of the filaments. Only at the inlets and outlets is there on the one hand enough space for the thread to pass through, but on the other hand said inlets and outlets are so narrow that they act as a seal. Oiling agent can hardly flow out from the inlet and outlet. In contrast to the prior art, therefore, oiling agent can be saved and, moreover, the environment surrounding the device is not polluted.

Therefore, in order to avoid contamination of the device's surroundings, it is particularly advantageous if the housing partition and/or the inlet and outlet are sealed or act as seals, such sealing being used to keep the oiling agent inside the housing. Although the housing is separated for the convenience of introducing the filaments into the housing, contamination of the surrounding environment of the housing can still be avoided.

If the housing is provided with a collecting device for the reusable oiling liquid, the liquid can also collect inside the housing and be fed to the oiling device or the collecting container.

It is particularly advantageous if the oiling device is an air jet deformation device and an oil supply device. This promotes a uniform application of finishing agent, in particular finishing agent, to the filaments. The oil is uniformly atomized by means of an air-jet texturing device, whereby the filaments can be evenly wetted.

If the oiling device has a separate yarn channel for inserting the filaments, it is very convenient to put the filaments into the oiling device by opening the yarn channel in the oiling device, where the filaments are located in the separate yarn channels. Once inside the thread channel, close the oiler again and the filaments are ready to be oiled.

In particular, for sealing the inlet and the outlet, labyrinth seals, bores closely surrounding the filaments, a vacuum in the housing and/or impingement of the seals with pressurized air at the inlet and outlet are advantageous. A labyrinth seal is as purely a structural problem as a hole tightly surrounding the filament at the inlet or outlet. However, it is usually sufficient to achieve a sufficient seal if a negative pressure is created in the housing, for example by sucking in a reusable oiling agent. In order to obtain a particularly reliable sealing of the inlet and outlet, it is advantageously conceivable to provide a pressurized air seal at the corresponding bore. If compressed air is blown in at the inlet and at the outlet, an air curtain is formed here which substantially prevents the passage of the finishing agent.

It is particularly convenient and economical if a rod-shaped oiler is used as the oil supply device. A rod oiler, known per se, is arranged inside the housing and enables an even and thorough oiling of the filaments that pass over the rod oiler.

If an oil return is provided in the housing, reusable oiling fluid can be collected in a particularly advantageous manner and fed to an oil tank or a used oil container associated with the housing.

In order to be able to adjust the oil feed, the oil return and/or the compressed air feed of the air-jet texturing device as required for optimum filament oiling results, it is particularly advantageous if the housing is equipped with a regulator. In particular, the quantity of oil supplied to the yarn or the oiling device can be adjusted by means of the regulator. In addition, by adjusting the compressed air supply to the air-jet texturing device, the application of the finishing agent or the desired quantity of finishing agent to the specific filaments can be adjusted.

In order to achieve precise guidance of the filaments and optimum contact of the filaments with the finish, it is advantageous if the yarn channel is closed radially with a spring-loaded impact plate. The spring ensures that the percussion plate is always pressed against a support surface and only keeps open the thread passage for passing the filaments. In particular, this prevents the filaments from moving laterally out of the yarn channel. The filaments are fully targeted by the finishing agent acting on the filaments in the yarn channel. This ensures uniform oiling without consuming unnecessary oiling quantities.

It is particularly advantageous if the housing and the parts of the oiling device which come into contact with the filaments are made of a wear-resistant material, in particular ceramics. This makes it possible to protect the oiling device and, for example, the inlets and outlets of the housing from wear and to ensure a long service life of the housing.

The device according to the invention can be used not only for the treatment of individual filaments, but also for the treatment of tows. The housing is equipped with several oiling devices for this purpose. In particular there are as many oiling devices as there are filaments per spinning position. This makes it particularly easy to insert several filaments simultaneously into a single housing that is open. Furthermore, it is more economical to produce a single housing for several filaments than to oil each filament individually.

Very simple operation is guaranteed if the oiling device is opened together with the housing. The filaments are now placed both in the inlet and outlet and in the oiler itself, after which the housing and oiler are closed again and the filaments are ready to be oiled with oiling agent.

In the method according to the invention for applying oiling agent to the filaments in a housing with inlets and outlets for the filaments and an oiling device for oiling the filaments, the housing is opened to transverse Open the inlet and outlet; place the filament into the inlet and outlet; close the housing, thereby closing the inlet and outlet around the filament; then, make the filament travel through the housing and through a Oiling device and air jet texturing device to apply oiling agent to the filaments and air jet texturing of the filaments. This makes the filament ready for oiling very quickly. Since the housing is hermetically closed after the filaments have been inserted, so that the housing is completely closed, no finishing agent can escape from the housing. The filaments can thus be oiled both very reliably and economically since no oiling agent is lost.

Inserting the filaments is particularly convenient if the housing is split at the inlet and outlet. This avoids having to go through the ring hole.

If the supply of air and/or oiling agent to the housing is interrupted when the housing is opened, it is ensured that the oiling agent cannot flow out of the housing. Contamination of the surrounding environment of the housing is avoided.

By controlling the supply of air and/or lubricant, the supply of air and/or lubricant is advantageously started automatically when the housing is closed. Restarting after a broken wire can therefore be carried out very easily by opening the housing, at which point the air and/or oiling agent supply is automatically switched off, followed by placing the filament in the housing and the oiling device, and finally closing the housing again , to enable air and/or lubricant input re-introduction to begin.

If the oiling device is also opened together with the housing, the thread can be re-threaded particularly easily and quickly. Opening and closing the housing and oiler is only a manual operation.

If the inlet and outlet are sealed with pressurized air, a very oil-tight housing results, wherein the inlet and outlet can be designed larger so that the filaments can move through the housing without hindrance.

Description of drawings

Further advantages of the invention are illustrated in the following examples. The accompanying drawings indicate:

Fig. 1 is used for applying the device of finishing agent according to the present invention,

Fig. 2 another kind of device according to the present invention,

Figure 3 oiling device,

Figure 4 is a cross-sectional view of the device of the present invention in the open position,

Another device according to the invention of Fig. 5 in the open position,

Figure 6 has a transverse and longitudinal section of the air-assisted sealing structure,

Figure 7 Transverse and longitudinal sections of the sealing structure without air assist,

Fig. 8 device for multiple filaments of the present invention,

Fig. 9 according to the device of Fig. 4 in the closed position,

Fig. 10 is a transverse sectional view of the oiling device, and

Figure 11 is a transverse sectional view of another oiling device,

Detailed ways

FIG. 1 shows a complete device according to the invention for applying a finish. The filament 1 passes through the filament inlet 3 of the housing 2, is moistened with oil as oiling agent in the oiling device 4 of a rod-shaped oiler here, and is then air-jet deformed in an air-jet texturing device 5 . Each individual filament of the filament 1 is uniformly mixed and moistened with oil by air-jet texturing, after which the filament 1 exits the housing 2 through an outlet 6 at the other end.

Input oil from fuel tank 7 with an oil quantity regulator 8 control. The filament 1 is tangential to the oiling device 4 and is acted upon with oil flowing out of an inlet opening of the oiling device 4 . The structure of the oiling device 4 can be known (designed) according to the current prior art. An air jet texturing device 5 is arranged behind the oiling device 4 along the filament running direction. The filament 1 passes through the closed yarn channel 9 of the air-jet texturing device 5 and is acted upon with compressed air via the compressed air channel 10 . The supply of compressed air is regulated via a pressure regulator 11 . The air volume is determined by the jet deformation pressure and the shape of the pressure air channel 10 .

The filament inlet 3 and the filament outlet 6 are designed as seals 12 . The sealing is effected by means of a lateral air flow through the pressurized air opening 13 of the seal 12 . By building up the pressure in the filament inlet 3 and the filament outlet 6, no oil or oil mist can flow out.

The housing 2 is provided with a recess 20 in the lower region, in which oil not received by the filament 1 collects and is guided back into the oil tank 7 via the oil return line 14 and the oil return regulator and returned for reuse.

In order to keep the radial closure of the yarn channel 9 and thus allow the normal and uniform air jet deformation of the oiled filament 1 , a part of the yarn channel 9 is designed as a strike plate 17 prestressed with a spring 16 . Here the impingement plate 17 is pressed against the base body of the air-jet texturing device 5 and radially seals the yarn channel 9 .

Figure 2 shows another configuration of the device. The oiling device 4 and the jet deforming device 5 are combined into one unit. The filament 1 passes through the common yarn channel 9 of the oiling device 4 and the air-jet texturing device 5, where it is first moistened with oil and then acted upon with compressed air.

The seals 12 at the filament inlet 3 and the filament outlet 6 have no additional air holes. The sealing to the outside is achieved by means of narrow thread openings and/or a negative pressure in the housing 2 which is generated via the oil return line 14 . Surplus oil is returned in the fuel tank 7 through oil return pipe 14. In addition to the oil returned, new oil is delivered to the oil tank 7 by the oil supply device 18 .

Fig. 3 represents the composite type refueling-jet deformation device. The oil supply line 22 and the compressed air line 10 intersect in a common channel. The oil-air mixture thus obtained passes together into the yarn channel 9 and acts on the filament 1 . Intense oiling is thereby carried out and the amount of oil can be reduced. The yarn channel 9 is closed again with an impingement plate 17 .

FIG. 4 shows the housing 2 in an open position in a transverse sectional view. The half part 2 of casing 2 belt impingement plate 17 and spring 16 is opened radially by a hinge 23 from the other half part 2 ". Thereby the sealing part 12 ( Not shown), and the yarn channel of the oiling device 4 and the air jet texturing device 5, and can put the filament 1 in. After the half part 2' is closed, the yarn channel 9 is closed with a spring-loaded impact plate 17. The housing 2 is sealed with a seal 24 at the boundary of the two halves 2' and 2". Operation of the opening/closing mechanism can be manual or automatically engaged with the machine controls. It is particularly advantageous if the supply of compressed air and oil is stopped with the opening of the housing 2 . After the housing 2 closes the input, operation can be restarted manually or automatically.

FIG. 5 shows a housing 2 having a structure similar to that of FIG. 4 . However, the halves 2' and 2" move linearly to open and close. A moving device 25 is provided for this purpose. The half 2' with impact plate 17 and spring 16 opens linearly to insert the filament 1. The operation also This can be done manually or automatically with machine controls.

FIG. 6 shows a structure with an air-assisted seal 12 . Compressed air is fed into the yarn channels of the filament inlet 3 and the filament outlet 6 via the compressed air holes 13 . The high pressure in the filament inlet 3 and the filament outlet 6 keeps the oil or oil mist in the housing 2 and cannot escape via the filament inlet 3 and the filament outlet 6 .

FIG. 7 shows the structure of the seal 12 without air assistance. The filament inlet 3 and the filament outlet 6 are made very narrow. The filaments 1 are in contact with the openings 3 and 6 respectively and carry excess oil which flows into the openings 3 and 6 so that the oil does not drip out of the housing 2 . Instead, the filaments 1 are additionally wetted.

FIG. 8 shows a housing 2 of multi-filament construction. A plurality of filament inlets 3 or filament outlets 6 are arranged on the housing 2 . All filaments can be put into housing 2 at the same time. The size of the yarn passage distance is selected according to the distance determined by the machine. Furthermore, not only the separation of the housing 2 but also the separation of the seal 12 can be seen from this view, which facilitates the insertion of the filaments.

FIG. 9 shows the housing 2 of FIG. 4 in a closed position in a transverse section. The separable housing 2 is sealed with a seal 24 . The seal 24 surrounds the entire housing 2 .

The impact plate 17 is pressed against the base body of the air-jet texturing device 5, thereby closing the yarn channel of the oil-jet texturing device. Impact plate 17 is compressed (installed) with spring 16, to guarantee to close yarn passage reliably. The yarn channel is made into a semicircle.

10 and 11 show different variants of the yarn passage of the oiling device 4 and the air-jet texturing device 5 . In FIG. 10 the thread channel has a 3/4 circle cross section, while in FIG. 11 the thread channel is designed with a V-shaped channel cross section. Different channel cross sections depending on the type of filament 1 can be particularly well suited for the oiling of the filament.

The invention is not limited to the shown exemplary embodiments. Modifications and combinations within the scope of the claims also belong to the present invention.

Claims (18)

1. A device for applying a finish to filaments, the device having a housing (2) with an inlet (3) and an outlet (6) for the passage of filaments (1) and a An oiling device (4) arranged in the housing (2) for applying an oiling agent to the filament is characterized in that the housing (2) is separated at the inlet (3) and the outlet (6), so as to facilitate The filament (1) is put into the housing (2), the inlet (3) and outlet (6) are designed to provide a seal around the filament, and there is an air jet deformation behind the oiling device (4) in the direction of filament travel device (5). 2. The device according to claim 1, characterized in that it further comprises a collection device for collecting oil from the housing (2) for reuse. 3. The device according to claim 1, characterized in that the oiling device (4) comprises a fueling device. 4. The device according to claim 1, characterized in that the oiling device (4) has a separate thread channel (9) for inserting the filaments (1). 5. The device according to claim 1, characterized in that: the sealing part of the inlet and outlet (3, 6) is a labyrinth seal, a hole tightly surrounding the filament (1), a negative in the housing (2) pressure or a pressurized air-loaded seal. 6. The device according to claim 3, characterized in that the oiling device (4) comprises a rod-shaped oiler. 7. The device of claim 6, further comprising an oil return line (14) connected to the collecting recess in the housing. 8. The device according to claim 7, characterized in that it further comprises an oil tank (7) connected to the oil return line and the rod oiler. 9. Press the device of claim 8, it is characterized in that: further comprise a plurality of input that are respectively used for regulating the oil of rod-shaped oiler, to the backflow of the oil of oil tank and the pressurized air input of jet deforming device (5) Regulators (8, 11, 15). 10. The device according to claim 1, characterized in that the oiling device comprises a yarn channel (9) which is radially closed by spring-loaded impact plates (16, 17). 11. The device according to claim 1, characterized in that the inlet (3), the outlet (6) and the oiling device (4) are made of ceramics. 12. The device according to claim 1, characterized in that a plurality of oiling devices (4) are arranged in the housing (2) to treat a plurality of said filaments simultaneously. 13. The device according to claim 1, characterized in that: the oiling device (4) and the casing (2) are separated to facilitate putting the filaments into the casing. 14. A method for applying a finish to filaments in a housing (2), comprising the steps of providing a housing with an inlet (3) and an outlet ( 6), the housing (2) is separated at the inlet (3) and outlet (6); open the housing (2) to open said inlet (3) and outlet (6) laterally; place the filament (1) into the inlet (3) and outlet (6); close the housing (2), thereby closing the inlet (3) and outlet (6) around the filament (1); then, allow the filament (1) to travel through The casing (2) passes through an oiling device (4) and an air jet deformation device (5) arranged in the casing (2), so as to apply oiling agent to the filament (1) and make the filament (1) jet out of shape. 15. The method as claimed in claim 14, characterized in that the oiling device (4) is also used for supplying compressed air transversely to the thread (1). 16. The method according to claim 14, characterized in that the step of applying a finishing agent to the filaments and the step of laterally supplying compressed air to the filaments are started when the housing (2) is closed. 17. The method according to claim 14, characterized in that: the oiling device (4) is also opened together with the opening of the casing (2), so as to put in the filaments. 18. The method as claimed in claim 14, characterized in that the inlet and outlet (3, 6) are sealed with pressurized air when the housing (2) is closed.

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