KR20180079433A - Knitted fabric manufacturing apparatus and manufacturing method - Google Patents

Abstract

The present invention relates to a manufacturing apparatus for manufacturing a knitted fabric using a knitting machine, a coarse spinning softener and a reinforcing unit, and a corresponding manufacturing method, wherein the coarse spinning softening and strengthening unit comprises: A spinning nozzle unit which is disposed downstream of the drawing apparatus in the rough spinning transport direction of the spinneret and applies compressed air to form a fiber reinforcing segment, And a pair of end yarn grip rollers disposed downstream of the spinning nozzle unit and rotating in opposite directions to define a range of fiber reinforcing segments, the manufacturing apparatus comprising at least one blower for blowing to the spinneret nozzle unit and / At least one device for drawing fibers unwound from the spinning nozzle unit and / or the stretching device, And a suction device. In the present invention, the suction device and the air blowing device are connected to each other to form one blowing and suctioning system, and the suction device includes a suction air cleaning unit having at least one blower unit, and at least one Is connected to at least one air channel extending over at least one pair of end yarn grip rollers, the air channels being oriented towards or along the spinneret nozzle unit and / or towards or to the stretching apparatus And at least one channel opening.

Description

Knitted fabric manufacturing apparatus and manufacturing method

The present invention relates to a knitted fabric manufacturing apparatus having a knitting machine and a roving drawing and strengthening unit, wherein said crude spinning softener and stiffening unit comprises at least one roughing yarn A roving supply unit; A stretching device connected to the coarse spinning supply unit; A spinning nozzle unit disposed downstream of the elongating device in the crude radiation transport direction of the manufacturing apparatus and forming a fiber strengthening segment through application of compressed air; And an end-thread gripping roller pair disposed downstream of the spinning nozzle unit in the coarse spinning direction and defining a fiber-reinforcing segment and capable of rotating in opposite directions, The apparatus comprises at least one blowing device for blowing to the spinning nozzle unit and / or the stretching device and at least one suction device for drawing the loose fibers from the spinning nozzle unit and / suction device. The present invention also relates to a method of producing a knitted fabric, wherein at least one coarse yarn is fed to the stretching device through the coarse yarn feeding unit in the fabrication method, and the drawn roving emitted from the stretching device is fiber reinforced Wherein the fiber reinforcement segments are defined by a pair of end yarn grip roller pairs that rotate in opposite directions and the soft yarn reinforcement yarns are joined by a pair of end yarn grip rollers The end yarn discharged from the pair of end yarn grip rollers is fed to the knitting machine and the spinning nozzle unit and / or the stretching device is blown by at least one blowing device, and on the spinning nozzle unit and / or the stretching device The suction air is sucked by at least one suction device.

International Publication WO 2009/043187 A1 relates to an apparatus and a method for producing a knitted fabric, in which a fiber bundle is fed directly to a knitting needle of a knitting machine. The fibers are softened to the desired fineness in the stretching system and subsequently suitably reinforced by a pneumatically operated spinning nozzle. Through the spinning nozzle, the fibers are constantly reinforced, and the cores in the fibers are wrapped by entangled fibers intertwined with each other. Subsequently, the fiber-stable transport is transported to the knitting needle via the guide tube. Into the guide tube, the air discharged from the outlet of the spinning nozzle flows in order to support the transport through the fibers through the guide tube.

The fabrication of knitted fabrics using false twist instead of a typical yarn offers the advantage that a knitted fabric having a particularly cost effective and soft feel is produced.

However, as in International Publication WO 2009/043187 Al, the problem when making and using reinforced fibers is that the very small fiber particles, so-called " fluff " fibers, Are separated from the fibers, and these fluffs can contaminate the manufacturing apparatus and the production environment, thereby disrupting the process or harming human health.

However, International Publication WO 2009/043187 A1 does not take into account the formation of fiber flecks which can adversely affect the process sequence and hence the process results during fabrication and transport of the reinforced fibers. In particular, in the case of the device of International Publication WO 2009/043187 A1, there is also the risk that the air which is released from the spinning nozzle and which contains the unwound fiber residue causes clogging in the guide tube.

In order to prevent fiber fly, the prior art uses suction and air blast units to remove free fibers, especially in the stretching device and the spinning nozzle unit Point is known. In this way, International Publication WO 2007/093166 A2 discloses a suction / air jet unit for removing fibers loosely unwound from a stretching apparatus. The suction / air injection unit includes two blast nozzles provided on both sides of the exit roller of the drawing apparatus. The blast nozzles receive injection air, so that the rollers of the elongating device can be kept as fuzzy as possible. The ejected jet air is deflected through a filling piece disposed on the back surface of the roller of the elongating device and formed on the lower and upper surfaces of the housing surrounding the elongating device and having a weak negative pressure therein, Is supplied to the central suction device via the predominantly existing air channels.

The German publication DE 10 2011 053 396 B3 discloses the apparatus and method of the type mentioned at the outset, by means of which the knitted fabric can be produced directly from softened and reinforced roughening yarns, ), The intermediate stages of conventional typical yarn production, such as winding and re-winding according to need, are omitted. In order to achieve this, German publication DE 10 2011 053 396 B3 discloses a process for the preparation of a polyurethane foam, starting from a crude yarn supply unit, softening the crude yarn in a stretching device, subsequently applying compressed air to the crude yarn in the spinning nozzle unit, It is proposed to guide the roughing yarn through a pair of end yarn gripping rollers that reinforce the yarn, followed by a fiber reinforcement segment of the spinning nozzle unit, and then feed the softened and reinforced rough yarn directly to the knitting position of the knitting machine . The coarse yarn is softened to a desired fineness in the stretching device and is imparted with false twist by the spinning nozzles of the spinning nozzle unit wherein the core of the fiber is wound by the winding fibers, The fibers are substantially free of kinks and are generally oriented parallel to one another. The pair of end yarn grip rollers disposed downstream of the spinning nozzle unit locks the stabilized yarn reinforcement through the spinning nozzle unit, thereby terminating false twist formation in the clamping position, The direct twisting of the winding fibers reinforcing the core of the coprecipitate is prevented and the softened and reinforced coprecipitate can be transported over the relatively long sections to the knitting needles of the knitting machine.

On the device known from German publication DE 10 2011 053 396 B3 there is provided a suction device for suctioning the loosened fibers. The suction units of the suction apparatus used are provided between the spinning nozzles of the spinning nozzle unit, are disposed downstream of the spinning nozzle unit, are provided on the outlet grip roller pair of the spinning apparatus, and are integrated into the conically shaped suction channel. Fibrous fluff is guided centrally through the suction channel and conical formation of the suction channel ensures a uniform flow condition across the system width.

In order to maintain the overall cleanliness of the device DE 10 2011 053 396 B3, a blower unit, which is provided on top of the device and which rotates, is used, in which a blown fiber bundle A uniform distribution is performed. In addition, blowing apparatuses are used in which the nap is blown out from the front portion and the rear portion of the stretching device, and as a result, the formation of the fiber agglomerates is prevented. However, the disadvantage of the blower unit used is that the amount of fiber at the outlet of the elongating device is influenced by the air turbulence generated by the self, thereby causing a variation in the fineness of the yarn. In addition, unintentional accumulation of the fleece of the fibers through the blower unit and the further blowing devices used and concomitant interference with the yarn forming process can occur. This is offset in the German publication DE 10 2011 053 396 B3 by means of the corresponding lidding devices provided on specific positions of the production equipment. In this case, however, again, the fuzz may not be removed during the process at the locations covered by the lid devices, so that contamination of that production device may occur therein and the production device must be stopped .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and apparatus for improving the reliability of a manufacturing apparatus during a manufacturing process, in which all of the important components for radiating soft radiation and light radiation reinforcement can be effectively and economically cleaned, And to provide a manufacturing apparatus for manufacturing a knitted fabric using a knitting machine and a crude radiation softening and strengthening unit, and a manufacturing method thereof.

The above problem is solved by a suction type air conditioner in which a suction device and a blower device are connected to each other to form a blowing and suctioning system and the suction device includes a suction air cleaning unit having at least one blower unit, The at least one exhaust air outlet is connected to at least one air channel extending over at least one pair of end yarn grip rollers, the air channels being directed towards or along the spinneret nozzle unit and / And at least one channel opening that is oriented relative to the substrate.

In other words, in the present invention, the suction device used is connected to the suction air cleaning unit, and the purified discharge air of the suction air cleaning unit blows air to the spinning nozzle unit and / or the stretching device as blow- Lt; / RTI > This is because, in the present invention, it is provided on the suction air cleaning apparatus, and on the one hand, a blower unit (not shown) for supplying the overpressure required for blowing in the opposite direction, . Accordingly, the manufacturing apparatus according to the present invention comprises a relatively small number of system components and includes a self-closed suction and ventilation system, which comprises a spinning nozzle unit and / Reliable targeted suction of blown and untwisted fibers through the targeted targeted effective blowing out of the fibers and / or other unwounded fibers from the device and, at the same time, through the suction device, and further purification and re-use of the aspirated air . Since the setting of the direction of the blowing air and the suction air is realized by only one blower unit in the present invention, the suction and blowing system of the manufacturing apparatus according to the present invention can be realized in a simple structure and space saving manner But it can be cost effective.

In other words, the suction air cleaning apparatus according to the present invention comprises at least one blower unit, the exhaust air contaminated with the fibers and / or other unwounded particles released through the action of the blower unit, And the purified air is supplied back to the production process as blowing air.

The blower unit, in the present invention, means a fluid flow machine comprising at least one rotating impeller, through which the air is transported and compressed, and the fluid flow machine itself has a suction side And a pressure side having an overpressure. As the blower unit, for example, a blower, a ventilator or a blower may be used. An air flow rate is generated through the rotational movement of at least one impeller of the blower unit, which flows through the exhaust air outlet of the suction air purifier in the direction of at least one channel opening in the air channel.

The air flow exiting the at least one channel opening is supplied to the production process to blow out the fibers and other particles released from the spinning nozzle unit and / or the stretching device. On the one hand, there is a negative pressure on the side of the opposite suction air cleaning device of the air channel while the air flow of the purified air produced through the blower unit flows in the direction of the channel opening. This negative pressure causes suction, which draws the air contaminated with the loosened fibers and / or other unwounded particles through the at least one exhaust-air inlet of the suction air cleaner in the direction of the blower unit . Correspondingly, at the same time, the contaminated air is sucked into the suction air cleaning device through the rotational motion of the blower device, and the purified air is discharged from the suction air cleaning device.

In the manufacturing apparatus according to the present invention, the blower unit may be formed as an axial ventilator, a diagonal fan, a radial fan, a centrifugal fan or a tangential ventilator. The blower unit is preferably provided inside the housing of the suction air cleaning unit. The impeller of the blower unit may comprise any number of blades and the shape and size of these blades may be selected in a manner specific to the application situation. The impeller of the blower unit can be incorporated in the suction air cleaning apparatus or driven by a drive motor provided outside the suction air cleaning apparatus. The blower unit is designed so that the coarse yarn is not damaged through any of the blowing process and the suction process, and / or is operated to such an extent that it is not damaged.

The air channels oriented toward or along the spinning nozzle unit and / or toward the stretching device and above the pair of end thread gripping rollers are supplied with blowing air initiated at the blower unit and in an overpressure state. From at least one channel opening of the air channel, the blowing air flows onto the spinning nozzle unit and / or the stretching device, whereby the loose fibers and other loose particles present therein are blown downward.

In principle, the air channel may comprise one channel opening or may comprise a plurality of channel openings. In this case, the arrangement, structure, size and orientation of the at least one channel opening can be selected in a manner specific to the application case. When the air channel includes a plurality of channel openings, the channel openings may be uniformly spaced from one another or may be provided concentrated in at least one area of the air channel, such as, for example, holes in a shower head.

However, particularly preferably, the air channel comprises a single continuous channel opening extending along the spinning nozzle unit and / or along the stretching device, so that the blowing air is not disturbed and the spinning nozzle unit and / So that the unwound fibers or other particles can flow optimally from the gaps between the spinning nozzles and / or the rollers of the stretching device, or between the spinning nozzles and / or the rollers of the stretching devices Can be removed.

Thus, the unwound fibers and / or other unwounded particles blown out by the suction device are sucked in, thereby rendering the area of the spinning nozzle unit and / or the area of the stretching device particularly clean. In this case, the at least one suction opening of the suction device is preferably oriented directly in the direction of the spinning nozzle unit and / or the stretching device. The orientation of the spinning nozzle unit and / or of the suction device facing the direction of the stretching device is such that the unwound fibers are immediately sucked from the position where they are most likely to occur during the twisting of the cope yarn by the softening yarn and spinning nozzle unit in the stretching device, . Through the aspiration of the loosened fibers and at the same time suction of the other loosened particles, in particular the spreading of the loosened fibers can be prevented, thereby ensuring a clean production environment, And human hazards due to other particles can also be prevented.

There is no limitation in the present invention regarding the type of suction device used. Thus, the aspiration device may comprise, for example, suction air channels or suction tubes which may be directed towards the spinneret nozzle unit and / or the rollers of the elongating device and which may lead directly to areas where too much fiber may be deposited . These types of suction air channels can also be formed as rigid pipes or as flexible tubes whose length and thickness can be minimized as much as possible for aspiration conduits while the original crude emission manufacturing process can be carried out without interruption Lt; / RTI > It is further preferred that the manufacturing apparatus according to the invention comprises a plurality of individual suction air channels which are integrated into one common suction air channel and oriented towards the spinneret nozzle unit and / or the various regions of the elongating apparatus.

The suction air channels of the suction device are connected to at least one discharge air inlet of the suction air cleaning unit so that the loose fibers contained in the discharge air can be filtered out in the drawn-out discharge air. The exhaust air purified in the suction air purifying unit is discharged from the suction air purifying unit via at least one exhaust air outlet, flows into the air channel by the action of the blower unit set to overpressure, and is discharged as blowing air in the air channel.

According to what has been proved particularly preferred, the at least one channel opening of the air channel is oriented not only towards or towards the spinning nozzle unit and / or towards or towards the stretching device, but also at least one As shown in Fig.

The air channel may be formed in the form of a rigid or flexible pipe or pipe system. Preferably, the air channels extend horizontally, that is, parallel to the rollers of the elongating device. The air channels may be mounted in a position fixed manner on the manufacturing apparatus according to the invention or may be mounted in a manner that allows for the maintenance of the manufacturing apparatus of the present invention and / The vertical position may be variable. Particularly in the case of forming the air channel as a pipe system, the air channel is made up of individual pipes again, or it is possible to blow from the main flow channel, which may be formed of a single pipe, to different areas of the manufacturing apparatus of the present invention May be formed to divide a plurality of branches that branch from each other and to separate in different directions as needed.

Particularly preferably proven, a napple filter unit comprising a perforated drum with at least one fluff filter layer provided on the negative pressure side of the blower unit, perforated drum itself, / RTI >

In the case of this embodiment of the present invention, the exhaust air contaminated with the fluffs is guided through the fluff filter unit to remove fibers and other particles released from the exhaust air. The lint filter unit comprises a perforated drum, that is to say a drum circumference, i. E. A cylindrical drum containing holes provided in the cylindrical circumferential surface and hollow inside. A negative pressure prevails around the perforation drum through the holes of the perforation drum, the bottom of the drum being connected to the negative pressure side of the blower unit. Thus, the contaminated exhaust air is sucked first toward the periphery of the drum. At least one napkin filter layer is provided around the periphery of the drum, i. E., The cylindrical circumference. The lint filter layer forms a lint filter for contaminated exhaust air. The lint filter layer is made of a mesh that is finer than the hole structure of the drilling drum, i. E., Includes apertures having a diameter smaller than the diameter of the bores of the drilling drum, thereby leaving the lint on the lint filter layer And is not sucked in the perforation drum. The napkin filter layer may be formed, for example, as a filter wire net.

The napkin filter layer can preferably be exchanged. In this way, it is possible to replace the fluff filter unit used as a fluff filter unit with different properties, for example openings with different diameters and / or different openings, especially when the fluff filter unit is formed as a perforation drum . This has been found to be particularly desirable in view of the manufacture and use of various yarns, especially those with different properties. Further, the replacement of the perforated drum is also preferable for the purpose of cleaning the perforated drum, if there is a defect in the perforated drum.

In a particularly preferred embodiment of the present invention, a perforated diaphragm is provided in the inner perimeter region of the perforation drum, and against this diaphragm, a stripping unit is provided outside the perforation drum. By no-hole diaphragm, there is no negative pressure in the outer perimeter area of the perforating drum opposite to this diaphragm. Thus, the contaminated exhaust air is not sucked here. Thus, in this region, a stripper of the stripping unit can be simply guided to the napkin filter layer, in order to peel the napkin from the napkin filter layer located on the perimeter of the perforation drum. To this end, the stripper preferably extends over the entire length of the perforation drum.

In an alternative modified embodiment of the manufacturing apparatus according to the invention, another unit for cleaning the lint filter unit may also be provided inside the suction air cleaning device, so that the lint filter layer, for example, It may not be removed from the suction air cleaning device. For example, as a nap filter cleaning unit, instead of the stripping unit described above, a suction or cleaning device may also be used. The lint filter cleaning unit used may be connected to a central dirt collection device.

Particularly preferably, the napple filter unit may be connected to or connected to a monitoring device that provides the user of the manufacturing apparatus according to the present invention with information on the degree of contamination or air permeability of the napple filter unit. Therefore, the corresponding information can be displayed by the monitoring device, for example when the nap filter unit is clogged and / or cleaned. Also, defects etc. of the lint filter unit can also be displayed by the monitoring device.

In another preferred embodiment of the production apparatus according to the present invention, a gear wheel is provided for adjusting the relative perforation drum position relative to the stripping unit at the inner periphery of the perforation drum. An adjusting member can be inserted in this gear so that the drilling drum can be further moved by a rotation angle. In this case, the stripping unit peels off the portion of the fluff fleece deposited on the nap filter unit during the process, corresponding to the rotation angle.

In a preferred embodiment of the present invention, the manufacturing apparatus of the present invention includes an auxiliary thread supply through which at least one auxiliary yarn can be fed to the elongating device, wherein at least one air channel is at least partially And also includes at least one channel opening oriented toward or along the auxiliary supply.

Through the use of the auxiliary yarn, the strength of the yarn fed and softened and reinforced into the knitting machine can be increased, and the failure safety of the process carried out on the production apparatus according to the present invention can also be increased. If the auxiliary yarn is supplied to the crude yarn to be treated in the production apparatus according to the present invention, a core-sheath yarn is formed, and the core is formed through the auxiliary yarn. The auxiliary yarn used may be a nonelastic thread or an elastic thread. Preferably, the auxiliary yarn supply portion includes a discharge portion realized by an exit roller pair of the elongating device, whereby the auxiliary yarn can be picked up through the outlet roller pair of the elongating device and coupled into the soft yarn emission. The auxiliary yarn can be transported toward the stretching device by, for example, auxiliary yarn gripping rollers provided in the auxiliary yarn supplying portion.

To protect the separate components of the auxiliary yarn supply, or at least the auxiliary yarn supply, such as auxiliary yarn grip rollers, from the unwound fibers or other unwounded particles, and thus to prove that the auxiliary yarn supply is consistently reliable functional, The air channel is formed such that at least a portion of the purified air emitted from the air channel can strike the auxiliary yarn supply. To this end, at least one channel opening provided in the air channel is oriented towards the auxiliary yarn supply. Further, in addition, a plurality of channel openings may be oriented toward the auxiliary yarn supply portion. In the same way, one branch directly from the air channel, oriented towards the auxiliary yarn supply and including at least one channel opening, can also be split.

When the air channel and the suction air channel include a plurality of openings and / or branches through which air can flow, in the case of the manufacturing apparatus according to the present invention, the individual openings of the air channels and / or the suction air channels and / An air guide system may be provided in the air channels and / or the suction air channels to close or open the branches and / or to thereby target and enable air flow as needed.

In a preferred improvement of the manufacturing apparatus according to the present invention, the suction air cleaning unit is a suction air cleaning unit for collection in which all suction devices provided on the manufacturing apparatus of the present invention flow into the suction air cleaning unit.

By collecting the contaminated air through the individual suction devices in a single suction air cleaning unit, the discharge air of the present manufacturing apparatus can be processed centrally and delivered as blowing air to the desired use position. Through the central processing of the air, the cost of the manufacturing apparatus according to the invention as well as the maintenance and repairing costs of the manufacturing apparatus of the present invention can be kept low.

Especially when a central suction air cleaning unit is used, it is proposed to use an air guide system as described above.

In order to ensure a uniform flow condition over the system width of the production apparatus according to the invention, preferably between the suction channels of the suction air cleaning device and the suction device, There is provided a suction-collecting channel that tapers conically through the channel.

Further, the object of the present invention is also solved by a manufacturing method of the above-described type in which the suction air is guided to the suction air cleaning unit, wherein the suction air is guided to the suction air cleaning unit, A negative pressure is created which causes the fibers loosened in at least one blower unit to exit from the suction air and on the other hand the purified exhaust air obtained from the suction air is pressurized by overpressure and the pressurized pressurized exhaust air is sucked From the air purification unit, into at least one air channel extending over the at least one end thread grip roller pair, and is directed toward or through the spin nozzle unit through at least one channel opening of the air channel and / At least one ball oriented toward or < RTI ID = 0.0 > And is guided while forming an air curtain.

In the production process according to the invention, the drawn fibers separated from the coarse yarn treated by the yarn production process, particularly by the rotation of the air jet in the spinning nozzle unit, From the manufacturing apparatus of the present application, and / or in the vicinity of the manufacturing apparatus of the present invention. Preferably, the loosened fibers as well as other particles are also drawn from a stretching device which softens the coarse emission and / or from a spinning nozzle unit which imparts and reinforces the coarse yarn. By drawing the loosened fibers and / or other unwounded particles, the diffusion of the fibers and particles and consequent contamination of the production environment can be prevented, thereby increasing process stability.

In order to suck air contaminated with loose fibers and / or other unwounded particles, the suction air cleaning unit to which the suction air is delivered comprises at least one blower unit, which generates a negative pressure, The contaminated air is sucked in the manufacturing apparatus of the present invention in which the manufacturing method is executed or in the vicinity of the manufacturing apparatus of the present invention.

The air, in which the fibers and other particles are cleaned in the suction air cleaner, is guided into the air channel starting from the suction air cleaner by the overpressure generated by the blower unit and extending along the pair of end grip rollers.

To transport the air, the blower unit includes a rotatable impeller. As a result of the rotational movement of the impeller, the air is transported, whereby at the same time the air is compressed and the suction side or negative pressure side, i.e. the side where the contaminated air is drawn by the blower unit and the blower side of the blower unit A pressure ratio is formed between the over-pressure side, that is, the side of the blower unit from which the purified air is discharged.

The purified exhaust air flowing through the air channel is discharged through at least one channel opening formed in the air channel and is directed toward or along the spinneret nozzle unit and / or toward or to the elongating apparatus while forming an air curtain . The air curtain is particularly effective when only a single continuous channel opening is formed in the air channel so that the air curtain will hit the spinning nozzle unit and / or the stretching device like a continuous air towel.

By the air flowing towards or through the spinning nozzle unit and / or through the drawing device or through it, the unwound fibers and other particles can be optimally blown out from the manufacturing apparatus and the treated coarse spinning, Accordingly, the fluffs which may interfere with the further processing of the coarse yarn in the manufacturing apparatus and the conditioning radiation of the present invention can be simply removed. In this case, according to what has proven to be particularly advantageous, the air channel or at least one channel opening has to be sucked into the spinning nozzle unit, the elongating device and / or the yarn, and the fibers and other particles, And is oriented so as to be sucked optimally from the exhaust air inlet of the air purification unit.

In a particularly preferred embodiment of the manufacturing method according to the invention, the suction air is guided through a fluff filter unit connected to the negative pressure side of the at least one blower unit, and the fluff filter unit comprises at least one fluff filter And the loose fibers contained in the suction air are collected by the lint filter unit. Thus, the fibers that are unwound and / or other loose particles are removed from the sucked air as the sucked air flows through the lint filter unit. The purified air exiting the napkin filter unit flows into the perforation drum and is transferred into at least one air channel with the help of overpressure formed through the blower unit.

In a particular embodiment of the method according to the invention, the lint filter unit can be cleaned by a lint filter cleaning unit whereby the fibers collected by suction, washing, blowing or peeling in the lint filter unit and / The removed particles can be removed. The fibers and / or particles aspirated, vented, washed, or exfoliated from the napkin filter unit may be delivered, for example, to a central contaminant collecting device.

The stripping of the napkin layer on the lint filter unit is carried out, for example, by providing a perforated diaphragm in the inner perimeter region of the perforating drum, a stripping unit is provided on the outside of the perforating drum opposite to this diaphragm, Gears are provided and are particularly effective when the drilling drum position is adjusted relative to the stripping unit by the toothed wheel at time intervals.

It has also been found that, with respect to what has been found to be preferable, the napple filter unit is monitored through the monitoring device, and when the napple filter unit is to be clogged or cleaned, for example, Information can be displayed.

In a particularly preferred embodiment of the manufacturing method according to the invention, the at least one air channel extends to at least one auxiliary yarn supply part and at least one air curtain through at least one channel opening of the air channel Or is oriented accordingly.

By incorporating an auxiliary yarn or so-called core yarn into the rood radiation, the stability of the coporation yarn can be increased and thus the failure safety of the knitting process can also be increased. To this end, in a preferred embodiment of the manufacturing method according to the present invention, the auxiliary yarn is supplied to the coarse yarn in the knitting machine. In this case, particularly in practical terms, the auxiliary yarn is drawn out through the pair of exit rollers of the knitting machine, so that the auxiliary yarn can be inserted without problems between the fibers of the yarn softened through the stretching device. In addition, the auxiliary yarn can be fed to the crude yarn at another position, depending on the further configurability of the manufacturing method according to the present invention. In order to transport the auxiliary yarn to the copier while protecting it, the auxiliary yarn can also be transported with the aid of at least one auxiliary yarn grip roller pair included in the auxiliary yarn supply.

In order to ensure that the auxiliaries are transported without difficulty to the auxiliaries and that the auxiliaries are uncomplicatedly coupled in the crude emissions, the auxiliaries feed is purified and supplied with air to be expelled from the channel openings. By blowing to the auxiliary yarn supply, the fibers and other particles can be removed from the auxiliary yarn supply and auxiliary yarns, thereby increasing the process reliability of the fabrication method according to the present invention.

According to another preferred and modified embodiment of the manufacturing method according to the present invention, the suction air sucked in the manufacturing apparatus of the present invention is collected and guided to the suction air cleaning unit, and the discharged air purified in the suction air cleaning unit And guided to all spinning nozzle units on the manufacturing apparatus.

Preferably, contaminated air is sucked in the region of the elongating device and / or the spinning nozzle unit as well as in other areas of the manufacturing apparatus of the present invention, so that the contaminated air is sucked, Process reliability can be further increased. In this case, according to what has proven to be particularly desirable, in order to keep both maintenance and repair costs as well as operational costs, exhaust air is conducted to a common central suction air cleaning unit, The fibers released from the exhaust air and / or the loose particles are removed. Subsequently, the air purified in the suction air cleaning unit can be delivered to, for example, a spinning nozzle unit and / or a stretching device. The purified air may also be used to blow the additional components, auxiliary yarns and / or coarse yarns to remove fibers and / or particles from additional components, auxiliary yarns and / or coarse yarns of the present manufacturing apparatus .

The preferred embodiments, the structure, the functions and the advantages of the present invention are explained in more detail in accordance with the following drawings.

1 is a side view schematically showing a detail of an embodiment of an apparatus according to the invention;
Fig. 2 is a front view schematically showing a detail of the apparatus of Fig. 1; Fig.
3 is a perspective view schematically illustrating an embodiment of a perforation drum that can be mounted on the apparatus according to the present invention.
Fig. 4 is a front view schematically showing the drilling drum of Fig. 3; Fig.

The drawings schematically show the details of one embodiment of a production apparatus according to the invention for producing a knitted fabric. For the sake of better clarity, a number of remaining machine details relating to, for example, a device housing, a media supply, a device control, etc., are omitted in the figures. With reference to the above detailed description, reference is made to the full text of the description of the German publication DE 10 2011 053 396 B3, which describes the basic construction of the manufacturing apparatus according to the invention, and the manufacturing apparatus according to the invention is described in German publication DE 10 2011 053 396 < / RTI > B3, elements of this blowing and aspiration system are given priority in the drawings described below.

Fig. 1 shows a part of a manufacturing apparatus according to the invention in a side view, while Fig. 2 shows a detail view in Fig. 1 of a manufacturing apparatus according to the invention in a front view.

The manufacturing apparatus according to the present invention includes a knitting machine not shown in the drawings and a crude spinning softener and stiffening unit 10 for supplying the staple yarn softened and reinforced by the knitting machine. The coarse radiation softening and strengthening unit 10 also includes a coarse radiation supply unit which is not shown in the drawings in which at least one coarse yarn is stored, for example, on at least one supply spool .

Further, the roughing radiation softening and strengthening unit 10 further comprises a stretching device 5 for softening the roughing radiation supplied from the roughing yarn supply unit to the stretching device 5. In the drawings, the unshown coarse yarn passes through the elongating device 5 from the bottom to the top in the coarse radiation transport direction A, that is, in the vertical direction in the illustrated embodiment.

The elongating device 5 used in the embodiment of Figures 1 and 2 comprises three normally lower rollers 511, 521 and 531 fixed at their positions, There are provided rollers 512, 522 and 532 which are rotatable during operation of the roller 50 and can be brought into close contact with the lower rollers 511, 521 and 531 by the lever arm 50, The roller pair 51, 52, 53 is formed. The rollers 512, 522, 532 may be, for example, rubber rollers.

The roughing radiation softening and strengthening unit 10 also includes a spinning nozzle unit 6 disposed downstream of the stretching device 5 in the rough radiation transport direction A. [ By means of the spinning nozzle unit 6, the softened coarse yarn discharged from the elongating device 5 during operation of the present manufacturing apparatus is subjected to compressed air on the fiber contact path and reinforced accordingly. The spinning nozzle unit 6 is composed of two spinning nozzles 61 and 62 for automatically transporting the softened spinning radiation in the rough spinning transport direction A in the case of the illustrated embodiment.

Further, the manufacturing apparatus according to the present invention further includes a suction device 11. 1 and 2, the suction device 11 comprises four suction channels 3a, 3b, 3c and 3d, in which the fibers unwound by these suction channels and / And can be sucked from the coarse radiation softening and strengthening unit at different positions of the radiation softening and strengthening unit 10.

In this case, the first suction channel 3a is oriented toward the lower roller 531 of the pair of outlet rollers 53 of the elongating device 5. In the illustrated embodiment, the suction channel 3a is oriented toward the lower roller 531 at an approximately right angle to the rough radiation transport direction A.

The second suction channel 3b is oriented toward the region between the spinning nozzles 61 and 62 of the spinning nozzle unit 6 to remove the fibers and / or unwound from the spinning nozzles 61 and 62 do. The suction channel 3b is oriented toward the spinning nozzle unit 6 at a substantially right angle with respect to the rough radiation transport direction A. [

And the third suction channel 3c is connected downstream of the spinning nozzle unit 6 in the rough spinning transport direction A. [

The fourth suction channel 3d extends above the spinning nozzle unit 6 and bends over the spinning nozzle unit 6 and is directed from the top toward the exit roller pair 53 of the elongating device 5 at an angle.

The suction channels 3a, 3b, 3c and 3d pass through a common suction air channel 30 in which suction air is discharged in the suction flow direction B, Into the suction air cleaning unit 4 of the manufacturing apparatus of the present invention. The suction air cleaning unit 4 is surrounded by a housing 41 in which a napping filter unit is provided. The lint filter unit comprises a drilling drum 7, in the case of the illustrated embodiment, a drum which is cylindrical and hollow with through holes provided in its cylindrical circumferential surface. A possible embodiment of the drilling drum 7 is shown in perspective view in Fig. 3 and in front view in Fig. The drilling drum 7 may be formed of steel, for example.

A napkin filter layer (70) is provided around the cylindrical circumferential surface of the perforation drum (7). The napkin filter layer 70 includes a plurality of through openings, and the diameter of these through openings is smaller than the diameter of the holes of the perforating drum 7. Thus, the napkin contained in the suction air is trapped on the napkin filter layer 70, and only the suction air from which the napkin has been removed reaches the inside of the drilling drum 7. The lint filter layer 71 may be formed, for example, as a cylindrical lattice network that is interconnected or intertwined with one another, and the mesh size of the lattice network is such that the mesh sizes of the loose fibers and / / RTI > and / or other dissolved particles do not enter the perforation drum 7 through the grid. The napkin filter layer 71 may be formed of, for example, a filter wire net.

A diaphragm 71 is disposed inside the perforation drum 7. The diaphragm 71 is located at the bottom of the perforation drum 7 in the illustrated embodiment. A stripping unit 72 acting on the cylindrical circumferential surface of the perforation drum 7 is provided at a position opposite to the diaphragm 71 from the outside of the perforation drum 7. [

The blower unit 8 is connected to the opening of the housing wall portion 411 of the housing 41 so as to suck air contaminated with the fibers and / or loose particles released from the coarse radiation softening and strengthening unit 10 do. In this case, the negative pressure side of the blower unit 8 is connected to the inside of the perforation drum 7, and the opened drum bottom part 73 of the perforating drum is located at a position facing the blower unit 8, Through the opening. Correspondingly, a negative pressure is produced in the interior of the drilling drum 7 and also in the inner chamber of the housing 41, so that in the suction channels 30, 3a, 3b, 3c, 3d leading to the housing 41 A suction action occurs. The overpressure side of the blower unit 8 is located outside the housing 41 so that an overpressure occurs outside the housing 41 and the pressure difference between the inside of the housing 41 and the outside space of the housing is indicated by arrow C The air flow in the direction of the air blower 9, as shown through Fig.

The negative pressure side of the blower unit 8 terminates at the same height as the housing wall portion 411 around the open drum bottom portion 73 for the embodiment shown in the figures, Or may protrude slightly into the suction air cleaning unit 4 or the perforation drum 7. However, the open drum bottom portion 73 may have a larger diameter than the negative pressure side of the blower unit 8. [

A negative pressure is produced through the rotational movement of at least one blower blade 81 of the blower unit 8 by which the air is drawn from the suction air channel 30 and accordingly through the suction channels 3a, 3b, 3c , 3d in the direction of the blower unit 8.

The suction air sucked from the roughing radiation softening and strengthening unit 10 flows along the suction air channel 30 tapered toward the suction flow direction B as a result of the suction action first and flows from the suction air channel 30 And arrives in the suction air cleaning unit 4 via the exhaust air inlet 42. [ In order to to ensure a uniform aspiration speed over the entire length of the suction air channel 30, the suction air channel 30 is inside the suction air cleaning unit 4 through into the suction collecting channel 43, which is Is formed conically in its longitudinal extension extending parallel to the longitudinal extension of the air channel 90 and / or parallel to the longitudinal extension of the rollers of the elongating device 5.

The suction collecting channel 43 is opened in the direction of the inner space of the housing 41. In the interior of the suction air cleaning apparatus 4, the sucked air is moved in the direction of the ventilator unit 8 located on the housing wall portion 411, and in this case, the sucked air is supplied to the cylinder wall portion of the perforating drum 7 And flows into the perforation drum 7. In this case, the suction air passes through the fluff filter layer 70 provided around the perforation drum 7. As the contaminated air flows through the napkin filter layer 70, the released fibers and / or particles in the aspirated air are filtered from the exhaust air by the napkin filter layer 70 and are collected, And only the discharge air from which the particles have been removed flows into the interior of the perforated drum 7 and from the perforated drum toward the fan unit 8.

An overpressure is generated outside the suction air cleaning unit 4 by the rotation of the blower blade 81 and air purified by the action of the overpressure is discharged from the interior of the perforation drum 7 into the suction air cleaning unit 4 And flows into the air channel 90 in the flow direction C through at least one exhaust air outlet. In this case, at least one channel opening 91 of the air channel 90, which is preferably continuous and is a single channel opening extending parallel to the rollers of the elongating device 5, The spinning nozzle unit 6 and / or the elongating device 5 so that the purified discharge air is directed toward the fibers and / or other particles released from the elongating device 5 and / or the spinning nozzle unit 6, For example. Thereafter, the unwound fibers and / or particles blown out from the elongating device 5 and / or the spinning nozzle unit 6 are sucked from the suction channels 3a, 3b, 3c and 3d, - The suction cycle is completed.

The elongating device 5 and / or the spinning nozzle unit 6 can be moved by the treatment of the air sucked in the present invention and the use of purified air for blowing to the elongating device 5 and / or the spinning nozzle unit 6. [ There is provided a manufacturing method corresponding to an effective manufacturing apparatus in relation to the energy cost, which enables the fibers and /

Adjacent to the napkin filter layer 71, on the cylindrical wall of the perforation drum 7, to ensure continuous air flow of air purified into the air channel 90 and hence from the channel opening 91, A stripping unit 72 is provided in the form of, for example, a stripping lip for stripping the lint fleece collected on the napkin filter layer 71. The regular peeling of the unwound fibers and / or other particles trapped on the napkin filter layer 71 prevents clogging of the through openings of the napkin filter layer formed as a lattice network and thereby results in a continuous air flow into the air channel 90 .

As can be seen in Figure 1, the stripping unit 72 is configured to remove peeled fibers and / or particles collected on the outer surface of the napkin filter layer 71, at least during the cleaning process, (71). The fibers and / or particles are firmly adsorbed on the napkin filter layer 71 due to the negative pressure produced by the ventilator unit 8, so that the stripping of the fibers and / or particles with the stripping unit 72 is carried out under negative pressure A hole-free diaphragm 71 is disposed inside the perforation drum 7 in opposition to the stripping unit 72. By the diaphragm 71, a negative pressure is not formed on the side of the perforating drum 7 opposite to this diaphragm, so that the loosened fibers and / or particles collected in this area can be simply peeled off from the napple filter layer 71 . And a rotational movement in which the perforating drum 7 rotates relative to the stripping unit 72 together with the lint filter layer 71 on the perforation drum is helpful for peeling the lint on the lint filter layer 71. [

To enable uncomplicated rotation of the perforation drum 7 with the napple filter unit 71, the perforation drum 7 is arranged in the region of the open drum bottom 73 in the case of the embodiment shown in Figure 3, And includes a toothed wheel. By engaging a slider or other actuating member formed correspondingly to the toothed wheel 74, not shown here, into the toothed wheel 74, the perforating drum 7 rotates about the drum axis together with the napkin filter layer 71 provided thereon The position of the perforation drum 7 can be changed relative to the stripping unit 72 in order to easily peel the lint fleece from the lint filter layer 71. [

In the case of the simple embodiment of the suction air cleaning unit 4, the diaphragm 71 can be simply inserted into the perforation drum 7, and therefore automatically positioned in the lower region of the perforation drum 72 due to gravity . In this case, the stripping unit 72 is provided at the lower portion of the perforation drum 7. However, in still another embodiment of the present invention, the diaphragm 71 may be fixedly mounted in the suction air cleaning device 4. [ As long as the diaphragm 71 is provided to be fixed in the suction air cleaning unit 40, the suction air cleaning unit can be provided at any other position each around the perforation drum 7, but the important point here is that only the stripping And the unit 72 is arranged to face the diaphragm 71.

1: Ventilation and aspiration system
3a, 3b, 3c, 3d: suction channel
4: Suction air purification unit
5: Stretching device
6: Spinning nozzle unit
7: drilling drum
8: blower unit
9: Fan
10: radiative softening and strengthening unit
11: suction device
12: Double end grip roller pair
13: auxiliary supplier
14: air curtain
30: Common suction air channel
41: Housing
42: Exhaust air inlet
43: Aspiration collection channel
50: lever arm
53: exit roller pair
61, 62: Spinning nozzle
70: Lint filter layer
71: diaphragm
72: Stripping unit
73: drilling drum bottom
90: air channel
91: channel opening
411: housing wall portion
511, 521, 531: Lower roller
512, 522, 532: rollers which can be brought into close contact with the lower rollers 511, 521, 531
A: Spinning direction
B: suction flow direction
C: Air flow in the direction of the blower (9)

Claims (12)

A knitting machine, and a yarn radial softening and strengthening unit (10), wherein the yarn radial softening and strengthening unit comprises a rough yarn supplying unit having at least one rough yarn, A spinning nozzle unit (6) disposed downstream of the elongating device (5) in the rough spinning transport direction (A) of the manufacturing apparatus and forming a fiber reinforcing segment through application of compressed air, and a spinning nozzle unit An end-thread gripping roller pair (12) disposed downstream of the spinning nozzle unit (6) in the coarse spinning direction A to define the fiber-reinforcing segments and rotatable in opposite directions , Said manufacturing apparatus comprising at least one blowing device (9) for blowing to said spinning nozzle unit (6) and / or said elongating device (5), and at least one blowing device In the device 5, At least one suction device (11) for sucking fibers,
The suction device 11 and the blower device 9 are connected to each other to form one blowing and suctioning system 1 and the suction device 11 is provided with suction air Wherein at least one exhaust air outlet of said suction air cleaning unit (4) is connected to at least one air channel (90) extending over said at least one end yarn grip roller pair (12) Wherein the air channel 90 comprises at least one channel opening 91 and the channel opening 91 extends toward or along the spinneret nozzle unit 6 and / To the knitted fabric. 2. The apparatus according to claim 1, wherein a lint filter unit is provided on the negative pressure side of the blower unit (8), the lint filter unit comprising at least one napple filter layer (71) provided around the perforation drum (7) And a perforated drum (7) having a perforation drum (7). A drilling machine according to claim 2, wherein a perforated diaphragm (71) is provided in an inner peripheral region of the perforation drum (7), and a stripping unit (72) is provided outside the perforation drum (7) Is provided on the knitted fabric. A knitting machine according to claim 3, characterized in that a toothed wheel (74) for adjusting the position of the perforating drum (7) relative to the stripping unit (72) is provided around the perforation drum (7) (4). The manufacturing apparatus according to any one of claims 1 to 4, wherein the manufacturing apparatus includes an auxiliary yarn supply unit (13), and at least one auxiliary yarn can be supplied to the stretching apparatus (5) The at least one air channel 90 extends at least partially over the auxiliary yarn supply part 13 and also includes at least one channel opening 91 which opens toward the auxiliary yarn supply part 13 And the knitted fabric is oriented accordingly. 6. The suction air cleaning unit according to at least one of claims 1 to 5, wherein the suction air cleaning unit (4) is a suction air cleaning unit for collection, and all the suction channels 3a, 3b, 3c, 3d, 30). The air conditioning system according to at least one of claims 1 to 6, wherein between at least one suction channel (3a, 3b, 3c, 3d, 30) of the suction air cleaning device (4) and the suction device (11) Is provided with a suction collection channel (43) extending parallel to the air channel (90) and conically tapering over its length. As a knitted fabric manufacturing method, at least one coarse yarn is fed to a stretching device (5) through a coarse yarn feeding unit, and the softened coarse yarn discharged from the stretching device (5) is fed by a spinning nozzle unit Wherein the fiber reinforcing segments are defined by a pair of end yarn grip roller pairs (12) rotating in opposite directions, and the soft yarns and reinforcing yarns are joined to the pair of end yarn grip rollers (12) And the end yarns discharged from the pair of end yarn grip rollers 12 are fed to a knitting machine and the spinning nozzle unit 6 and / or the elongating device 5 are guided by at least one blowing device 9, and suction air is sucked by the at least one suction device 11 on the spinning nozzle unit 6 and / or the elongating device 5,
The suction air is guided to the suction air cleaning unit 4 in which a negative pressure is generated which causes the fibers unwound on the one hand to the at least one blower unit 8 to be discharged from the suction air, The purified exhaust air obtained from the suction air is pressurized by overpressure and the pressurized pressurized exhaust air is discharged from the suction air cleaning unit 4 to the at least one end yarn gripping roller pair 12 Is guided into at least one air channel (90) extending therefrom and towards and through the spinneret nozzle unit (6) by at least one channel opening (91) of the air channel (90) and / Is guided while forming at least one air curtain (14) oriented towards or along the device (5). ≪ RTI ID = 0.0 & Law. 9. The apparatus according to claim 8, wherein the suction air is guided through a nap filter unit connected to the negative pressure side of the at least one blower unit (8), and the nap filter unit comprises at least one nap provided on the perforation drum And a piercing drum (7) having a filter layer (71), wherein the loose fibers contained in the suction air are collected by the napping filter unit. The drilling machine according to claim 9, wherein a hole-free partition plate (71) is provided in an inner peripheral region of the perforation drum (7), and a stripping unit (72) is provided outside the perforation drum (7) A gear 74 is provided on the inner perimeter of the drilling drum 7 so that the position of the drilling drum 7 by the toothed wheel 74 is controlled by the stripping unit 72, Wherein the knitted fabric is relatively adjustable relative to the knitted fabric. 11. A method according to at least one of claims 8 to 10, wherein the at least one air channel (90) also extends over the auxiliary yarn supply (13) and the at least one channel opening (91) Characterized in that at least one air curtain (14) is oriented towards or along the auxiliary yarn supply part (13). 12. The apparatus according to at least one of claims 8 to 11, wherein the suction air sucked in the production apparatus is collected and guided to a suction air cleaning unit (4), and the discharge air purified in the suction air cleaning unit Is guided over all the spinning nozzle units (6) on the apparatus.

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