LU507883B1 - Textilmaschine mit Strömungskontur - Google Patents

Abstract

Textilmaschine mit Strömungskontur Die Erfindung betrifft eine Textilmaschine, insbesondere Rotorspinnmaschine, aufweisend ein Auflösewalzengehäuse zur Umhausung einer Auflösewalze für das Auflösen eines Faserbandes zu weitestgehend vereinzelten Fasern und einen Faserleitkanal, wobei der Faserleitkanal an dem Auflösewalzengehäuse derart angeordnet ist, um die weitestgehend vereinzelten Fasern aus dem Auflösewalzengehäuse abzuführen und einem Spinnrotor zuzuführen. Um die Qualität des gesponnenen Fadens bzw. des gesponnenen Garns und die Handhabbarkeit der Spinnmaschinen zu verbessern und den Ressourcenaufwand für deren Betrieb zu reduzieren, ist vorgesehen, dass eine Strömungskontur im Faserleitkanal, dem Auflösewalzengehäuse und/oder einem Übergangsbereich zwischen Faserleitkanal und Auflösewalzengehäuse ausgebildet ist, derart, um eine optimierte Luftströmung im Faserleitkanal, im Auflösewalzengehäuse und/oder im Übergangsbereich zwischen dem Faserleitkanal und dem Auflösewalzengehäuse auszubilden. Fig. 1

Description

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IP/M3J507883 29.07.2024

Description

Textile machine with stream contour

The invention relates to a textile machine. The invention relates to an insert. The invention relates to a method.

Textile machines, in particular spinning machines, and further specifically rotor spinning machines, are known in the prior art. A rotor spinning machine has various components that work together to separate a large number of fibers from a sliver and process them into a durable yarn. The most important parts of a

Rotor spinning machines include, in particular, a dissolving roller, which can be used to...

The dissolving roller is used to break down the fiber tape and separate the fibers. It can rotate and is typically coated with a suitable material such as steel or ceramic to ensure the...

To achieve fiber separation, appropriate structures such as teeth, grooves, or serrations can be arranged on the surface of the dissolving roller to achieve this.

The dissolving roller housing enables the fiber tape to be broken down and the fibers arranged within it to be separated. It holds the dissolving roller and, in particular, connects it to the fiber guide channel. It ensures that the dissolved fibers can be transported into the fiber guide channel. A fiber guide channel serves, in particular, as a conduit for transporting the dissolved, separated fibers from the dissolving roller to the fiber guide channel.

The fiber guide channel is designed to ensure a continuous supply of fibers to the spinning rotor. A spinning rotor with a rotor cup serves primarily to combine the individual fibers into a durable, strong, and as smooth a fiber structure as possible—a thread or yarn. As part of the spinning rotor, the rotor cup is responsible for guiding the fibers evenly around the rotor's central axis through rotation and bonding them together to form a dense thread.

The operation of a rotor spinning machine, or rather a spinning process, can be divided into the following steps: The fiber web is placed on the disentanglement roller, and the roller housing is closed. The disentanglement roller rotates and pulls the fiber web along the direction of rotation, thereby disentangling it and separating the fibers into individual fibers. Additional fiber web can be fed in to enable a continuous process. The disentangled fibers are transported from the disentanglement roller to the fiber guide channel, where they enter a

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IP/M3J507883 29.07.2024 continuous fiber feed can be achieved. The individual fibers are guided, in particular, from the fiber guide channel to the spinning rotor, transferred into the rotor cup, and guided around the rotor on the inclined walls of the rotor cup, where they can slide down the inclined walls, thereby being further stretched. The rotor cup collects the fibers, in particular in a rotor groove, and gathers them into a dense thread, which can then be drawn from the rotor cup to be wound up and formed into a spool. Once the thread is wound, it can be used for further processing.

Processing steps, such as knitting or weaving, are used.

The stretching dimension of the individual fibers in the rotor cup when they are in a

The process of combining the spinning strands into a thread and/or yarn is particularly important for the quality of the resulting thread and/or yarn. Transport efficiency is also affected.

Significance for the course of the procedure, its manageability and the associated

Resource expenditure.

The purpose of the invention is to improve the quality of the spun thread or the spun material.

to improve yarns, improve the handling of spinning machines, and the

to reduce the resource expenditure for their operation.

The problem is solved in particular by a textile machine with the features of claim 1. The problem is solved in particular by an insert with the features of claim 1. The problem is solved in particular by a method with the features of claim 11. The textile machine can be characterized by the features, properties, and advantages of the

The application and procedure are described. This applies regardless of the specific case.

Category and across category boundaries – device, system, method, and use. This also applies conversely, so that the method and/or use can be described by the features, properties, and advantages of the textile machine. Advantageous embodiments of the invention are the subject of

Subclaims.

According to one aspect, the task is made possible in particular by a textile machine with the

Features of claim 1 solved.

In this case, a textile machine can have a dissolving roller housing to enclose a dissolving roller -2-

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IP/M3J507883 29.07.2024 for dissolving a fiber tape into largely isolated fibers and a

have a fiber optic conduit. The fiber optic conduit is particularly attached to the

Dissolving roller housing arranged so that it removes the largely separated fibers from the

The material is conveyed by the dissolving roller housing and fed to a spinning rotor. The textile machine can be used as

It may be designed as a rotor spinning machine. A flow contour can be incorporated into the fiber guide channel, the

Dissolving roller housing and/or a transition area between fiber guide channel and

Dissolving roller housings must be designed in such a way as to optimize airflow in the

Fiber guide channel, in the dissolving roller housing and/or in the transition area between the

to form the fiber guide channel and the dissolving roller housing.

The textile machine, in particular the rotor spinning machine, is in particular a

A machine that can be used for the purpose of spinning fibers into thread.

Such a machine uses rotating rollers or wheels to separate the fibers in order to spin them together into a thread in a device, as on other machines.

The location is described herein.

Fiber flow separation can occur in the fiber guide channel. Turbulence, in particular, reduces the effectiveness of fiber release and fiber transport. By using a flow contour, for example in the form of a bulge, as will be described elsewhere, the turbulence can be added to the effective volume flow. This can result in improved fiber release. The flow contour can be implemented in the dissolving roller housing and fiber guide channel, or only in the fiber guide channel or only in the dissolving roller housing. Furthermore, it is possible for the flow contour to be implemented as a separate component, as described in detail elsewhere. Elsewhere, an application is described that can increase the effectiveness of fiber release by implementing a corresponding flow contour in a relevant area of a

textile machine. The geometric adaptation of this geometry to respond to changing spinning pressures and/or dissolving roller speeds can thus be achieved without great effort. Easy interchangeability of the insert is therefore possible. The insert can be shaped, among other things, as a partial circular segment of the dissolving roller housing and can exhibit both the geometry of the housing and at least partially that of the fiber guide channel and/or the flow contour, in particular the bulge.

The insert can be guided laterally. The alignment and positioning are achieved in particular by a positive fit of the insert with the dissolving roller housing and/or -3-

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IP/M3J507883 29.07.2024 implemented in the fiber optic conduit. Due to tolerance reasons, one of the two in particular

The components form the basis. To hold the insert in its position, a frictional connection can be achieved using an externally arranged leaf spring or an internal ball-and-spring element, as also described elsewhere herein.

The dissolving roller housing is, in particular, a component of the textile machine that serves to...

to enclose the dissolving roller. The dissolving roller is used in particular to break down the fiber sliver into individual fibers. The fiber guide channel is, in particular, a part of the system or textile machine that can transport the broken-up fibers from the dissolving roller to the spinning rotor.

The term "largely isolated fibers" refers in particular to fibers that are not present in dense clumps, tufts, or a fiber band, but rather exist individually and can be transported independently of one another.

Fiber optic conduit is, in particular, a path or tube that can serve to carry the fiber from the

The fiber ribbon is released to provide a path for individual fibers so that they can be transported to the spinning rotor. The spinning rotor is preferably housed in a rotor casing.

The rotor housing is preferably used for spinning in a manner known per se with a

A vacuum is applied. The vacuum in the rotor housing also causes a

Airflow from the dissolving roller housing, through the fiber guide channel, to the rotor housing or the spinning rotor. This airflow transports the fibers dissolved by the dissolving roller into the spinning rotor.

The flow contour in the fiber guide channel, in the dissolving roller housing and/or in a

The transition area between the fiber guide channel and the dissolving roller housing is, in particular, a special shape or structure that can serve to ensure optimal airflow in the

To create a fiber guidance channel in the dissolving roller housing and/or in the transition area.

Air current refers in particular to the natural or artificially generated draft of

Air flows through the dissolving roller housing and/or the fiber guide channel. A flow contour can consist of various materials such as metal, plastic, or ceramic and is specifically arranged and designed to optimize the airflow and transport the fibers more efficiently. An optimized airflow is characterized by a fluid flow that is as laminar as possible and/or has as little turbulence as possible, or largely avoids turbulent flow. The flow contour can be designed in such a way as -4-

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IP/M3J507883 29.07.2024 must be designed such that its surface forms a boundary of a flow that is (still) laminar, even if no flow contour is present. The corresponding shape and/or form of the surface of the flow contour can be determined by measurements and/or

Simulations of the flow behavior of an air current can be determined by...

Areas of turbulent flow can be blocked by the surface of the flow contour. The flow contour can be designed as a solid workpiece, i.e., it can also be a

They contain material, for example to dampen vibrations. This material can be granular, for example to enable damping through the internal friction of the granular material.

Alternatively or additionally, the flow contour can also be formed as solid material, in particular as a single piece. Alternatively or additionally, the flow contour can also be hollow, for example if material and/or weight needs to be saved.

According to one perspective, the flow contour can be shaped in such a way that it fills an area where, without its presence, turbulent flow would occur. A turbulent

Flow is, in particular, a chaotic movement of fluid or gas that can arise from disturbances in the fluid or gas molecule behavior and can lead to contamination of an area of the fiber guide channel and/or the dissolving roller housing, for example by a

Impairment of the transport capacity of individual fibers. Avoidance of turbulent flow.

Flow control significantly reduces the need for and effort required for cleaning and maintenance, which can reduce resource consumption. The flow contour is specifically designed to minimize these turbulent flows and ensure a more efficient and lower-friction airflow in the fiber guide channel, the dissolving roller housing, and/or the...

Transition area between the fiber guide channel and the dissolving roller housing enabled.

The flow contour in the fiber guide channel, the dissolving roller housing and/or a

The transition area between the fiber guide channel and the dissolving roller housing is specifically arranged and designed to optimize airflow in the fiber guide channel.

Dissolving roller housing and/or in the transition area between the fiber guide channel and the

To form dissolving roller housings. An air flow exhibits, in particular, a fluid flow, such as ambient air, dry air, nitrogen gas and/or other gases, for example, the

Atmosphere. A flow contour, in particular, has a surface that is arranged and designed in such a way as to contain a largely laminar fluid flow, to direct or control the fluid flow without allowing turbulence, since the

The surface defines the area where such turbulence would occur. -5-

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IP/M3J507883 29.07.2024

A transition zone can be formed between the dissolving roller housing and the fiber guide channel. This zone can be located between -10 mm (i.e., located in or starting within the dissolving roller housing) and up to 20 mm in the fiber guide channel. In other

In various embodiments, this can be arranged between -5 mm and 18 mm, further in particular between 0 mm and 15 mm, further in particular between 2 mm and 10 mm, further in particular between 4 mm and 6 mm. It can be provided, in particular, that the

The transition region can be located in an area of highest wear on the fiber optic channel. Alternatively or additionally, the transition region can be defined by the occurrence of turbulent flows (without the presence of a flow contour).

According to one aspect, the flow contour is specifically designed to form a bulge-

It has a shape. A bulge shape refers in particular to a curved shape or

A protrusion on a surface or component. The flow contour, or bulge shape, exhibits in particular a bulge, which is arranged in the dissolving roller housing.

The dissolving roller is positioned opposite and protrudes into the flow area.

This type of flow contour can help reduce turbulence and enable a more stable airflow in the fiber guide channel, the dissolving roller housing, and/or the transition area between the fiber guide channel and the dissolving roller housing. This can...

Bulge, in particular, confine a flow pattern that is especially laminar

It replicates the flow when the flow contour is not specified, which in particular results in a

The area is inaccessible to the airflow, which could lead to turbulent flow, especially without the flow contour.

According to one aspect, the flow contour can be a separate component or several separate components.

Components must be designed. A separate component refers in particular to a

A component (or device) that can be mounted separately from other components or housings in the textile machine. In this case, the flow contour can be a separate component specifically designed to optimize airflow in the fiber guide channel.

Dissolving roller housing and/or in the transition area between the fiber guide channel and the

Dissolving roller housing was designed. By separating the component from others

Housings or components can make it easier to adjust and maintain the flow contour to ensure optimal airflow in the textile machine. This is particularly possible because replacing the separate component is faster.

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IP/M3J507883 29.07.2024 and is easier, especially as described in detail elsewhere herein.

Alternatively or additionally, a modular design allows for appropriate adaptation in advance of the construction of a textile machine, without having to customize a large component, such as the fiber guide channel or the dissolving roller housing.

According to one aspect, the separate component, such as the flow contour, can be (at least one)

Partially exhibiting a partial circular segment(s) of the dissolving roller housing. A partial circular segment of the dissolving roller housing refers in particular to a round, circular, or semicircular recess in the round or oval housing wall of the

Dissolving roller housing. This recess serves in particular to remove material from the

to be removed from the dissolving roller housing in order to replace the corresponding

to enable flow contour. The recess is, in particular, a one-piece component that can be inserted/removed from the dissolving roller housing, guided, for example, laterally. By integrating the separate component as

The partial circle segment of the dissolving roller housing can be adapted to the needs of the respective

The connection between the flow contour and the rest of the dissolving roller housing is adapted to the application situation, which can lead to better airflow and more efficient fiber transport.

According to one aspect, the separate component is designed in particular such that it forms part of the fiber guide channel, part of the dissolving roller housing and at least part of the

exhibits a flow contour. This ensures, in particular, an optimal connection between the

The fiber guide channel, the dissolving roller housing, and the flow contour are manufactured, which can lead to improved airflow and more efficient fiber transport. Integrating the separate component with these textile machine components results in a more stable and lower-friction airflow, particularly one with reduced internal friction, within the fiber guide channel.

Dissolving roller housing and/or in the transition area between the fiber guide channel and the

Dissolving roller housing enabled.

According to one aspect, the separate component is specifically arranged and designed so that it can be guided laterally as an insert. This means that the separate component can be inserted laterally into the textile machine from the outside. Alternatively or additionally, the insert can be guided laterally, which may mean that the insert is guided via contact and

Management structures can be maintained. The deployment can be introduced laterally. The -7-

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Alignment and positioning are achieved primarily through a positive fit between the insert and the dissolving roller housing and/or the fiber guide channel. For tolerance reasons, one of these two components typically forms the basis. To hold the insert in position, a frictional connection can be achieved, for example, using a leaf spring (especially an external one) or an internal ball-and-spring element. The insert serves, in particular, to ensure an optimal connection between the

to create a fiber guide channel, a dissolving roller housing, and a flow contour while simultaneously reducing turbulence. This is achieved through lateral guidance and/or lateral...

By arranging the separate component as an insert, repair and maintenance work can be carried out more easily, as the component can be accessed from the outside.

The separate component is specifically arranged/arrangeable and designed in such a way that it functions as

The separate component can serve as a flow contour in the fiber guide channel, in the dissolving roller housing, and/or in the transition area between the fiber guide channel and the dissolving roller housing.

Forming a flow contour. It is guided primarily laterally, and can therefore be used with appropriate

Structures are arranged in the area of the dissolving roller housing and serve in particular to regulate the airflow in the transition area between the fiber guide channel and the

To optimize the dissolving roller housing. In particular, the use of a separate

Component as an insert, especially laterally guided, the adaptability of the system to changed

Flow conditions and/or operating states.

According to one aspect, the separate component can be arranged, in particular as an insert, via a positive fit in alignment and positioning with at least one of the dissolving roller housings and/or the fiber guide channel. A positive fit here refers specifically to a mechanical connection or connecting unit that can serve to align and position the separate component with respect to the dissolving roller housing and/or the fiber guide channel. This positive fit allows the separate component to be unambiguously connected to its correct position on the textile machine, ensuring an optimal, secure connection between the fiber guide channel, the dissolving roller housing, and the

to create a flow contour.

According to one aspect, the separate component is held in its position, in particular as an insert, by means of a leaf spring, especially arranged externally, or a ball-spring element, especially arranged internally. An externally arranged leaf spring refers here to a spring, -8-

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IP/M3J507883 29.07.2024 which is attached externally to the dissolving roller housing and/or the fiber guide channel to hold the separate component in its position. An internal ball-spring element, on the other hand, refers to a spring that is located inside the dissolving roller housing and/or the

The fiber guide channel is arranged to fulfill the same function. Both types of springs make it possible to hold the separate component in its position and to establish an optimal connection between the fiber guide channel, the dissolving roller housing, and the flow contour, especially during operation and when vibrations and/or vibrations are transmitted.

Vibrations caused by operation.

According to an independent aspect, an insert for a textile machine can be designed in which the flow contour is designed and arranged in such a way that it is located in a fiber guide channel, a dissolving roller housing and/or a transition area between the fiber guide channel and

The dissolving roller housing of a textile machine, as described elsewhere herein, can be arranged. The insert is specifically designed to...

can capture (and/or exhibit) the flow contour and position it to ensure optimal airflow in the fiber guide channel, in the dissolving roller housing and/or in the

This can create a transition area between the fiber guide channel and the dissolving roller housing, as described elsewhere herein. This increases the efficiency of the textile machine and improves the quality of the produced yarn and/or thread.

The application can be described by the features, advantages, and properties of the textile machine and/or the process. Conversely, this also applies to the textile machine and/or the process, which is why the textile machine and/or the process can be described by the features, advantages, and properties of the

This can be described in terms of its use. This applies in particular to the categories -

Device, system, method, and use – all this is irrelevant. A repetition of all this is not possible.

Further details are omitted for the sake of brevity and readability.

According to an independent perspective, a method for optimizing airflow in a

A textile machine is designed that includes the step of measuring an airflow in the absence of a flow contour. Alternatively or additionally, the method can include the step of

Simulating an airflow in the absence of a flow contour. The method can include the step of arranging the flow contour in a specific area of the

textile machine, in particular as described elsewhere herein. In particular, various parameters such as geometry, size and position of the flow are considered -9-

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IP/M3J507883 29.07.2024 investigated how to adapt a flow contour to this flow in order to achieve optimal airflow. The method can help to improve the efficiency of

to increase the efficiency of the textile machine, reduce energy consumption and maintenance costs, and extend the service life of the components.

In one step, the process can involve designing a flow contour. Specifically, a flow contour is adapted to the determined flow to block certain areas and prevent turbulent flow. A digital twin of the flow contour, particularly of the corresponding insert, can be generated and/or stored in a storage device, such as an SSD.

HHD, in a processor - especially as an electronic signal - or in similar structures, in order to provide machine-readable work instructions in a manufacturing process by means of a computer program product, in order to train an operator accordingly, in order to use it in a textile machine.

The process can be described by the features, advantages, and properties of the textile machine and/or its application. Conversely, this also applies, which is why the textile machine and/or its application can be described by the features, advantages, and properties of the

The procedure can be described. This applies particularly across category boundaries.

Device, system, method, and use – all this is irrelevant. A repetition of all this is not possible.

Further details are omitted for the sake of brevity and readability.

Exemplary embodiments of the invention are described in more detail below with reference to the figures, which show schematically and by way of example:

Fig. 1 shows a schematic representation of an exemplary embodiment of a

Textile machine;

Fig. 2A shows a sectional view of an exemplary embodiment of a

Dissolving roller housing with coupled fiber guide channel and flow contour;

Fig. 2B is a schematic representation of a flow profile in an exemplary case.

embodiment of a dissolving roller housing with coupled

Fiber conduction channel without flow contour;

Fig. 3 shows a view of an exemplary embodiment of a separate component;

Fig. 4A shows an exemplary embodiment of a -10 -

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IP/M3J507883 29.07.2024

Dissolving roller housing with insert in oblique top view; and

Fig. 4B shows a view of an exemplary embodiment of a

Dissolving roller housing with insert in oblique side view;

Fig. 4C shows a view of an exemplary embodiment of a

Dissolving roller housing with insert in a side view; and

Fig. 5 shows a schematic representation of an exemplary embodiment of a

Procedure.

The same applies to elements and structures that have the same effect and/or are of the same type.

Reference symbols used.

Fig. 1 shows a schematic representation of an exemplary embodiment of a

Textile machine 100, which can be designed as a rotor spinning machine 200.

Rotor spinning machines 200 have a spinning rotor 10, which can be formed from a rotor cup 30 into which individual fibers 11 can be fed via a fiber guide channel 7. The spinning rotor 10 is driven rotaryally, for example by a single motor (not shown) or via a drive belt (not shown), perhaps together with other

Components of the Rotor spinning machine 200.

The individual fibers 11 can be introduced into the rotor cup 30, for example via a channel plate adapter 12, which can be connected to an adapter channel 8 through which the individual fibers 11 can move. As the fibers 11 move in the fiber guide channel 7 and in the adapter channel 8, they can be stretched, as shown schematically and by way of example. The movement of the fibers in the fiber guide channel 7 and in the adapter channel 8 can be made possible by the negative pressure in the rotor cup 30, or alternatively or additionally by the application of compressed air. The fibers 11 are thereby stretched further, particularly at the inclined walls 32 of the rotor cup 30, until they can reach a rotor groove 13 in which they can aggregate to form a filament (not shown).

It can be pulled off via a thread pull from the rotor cup 30, which here consists of

Clarity reasons are not shown.

The fibers 11 are first connected by means of a fiber band (not shown) of a

a dissolving roller (not shown) is fed, through which they can be dissolved from the fiber sliver and thus separated. These separated fibers 11 can -11-

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IP/M3J507883 29.07.2024 subsequently transported in a dissolving roller housing 6, as shown in Fig. 2B. The

Fibers 11 are to be fed to a rotor cup 30, in particular via a fiber guide channel 7 (and possibly via an adapter channel 8), as described elsewhere herein. There they are spun into a thread or yarn, which can be drawn off from the rotor cup via a thread take-up, which is not shown here for the sake of clarity.

Fig. 2A shows a sectional view of an exemplary embodiment of a

Dissolving roller housing © with coupled fiber guide channel 7 as plug-in set 59 and

Flow contour 40 as a separate component 3, as shown in detail in Fig. 3 and described therein. The flow contour 40 is in particular a bulge-

Form 41 is designed to create a laminar airflow 52, as shown in Fig. 2B in connection with a schematic representation of a flow profile in an exemplary

An embodiment of a dissolving roller housing 6 with a coupled fiber guide channel 7, but without a flow contour 40, may exist. In this respect, a limiting flow 51 may exist, from which a flow extends outwards in a direction, in particular along a gradient of the

Flow strength, a turbulent flow of 50 can develop. This can occur in a

Transition area 31 exists if no flow contour 40 is provided. Therefore, the insertion of the flow contour 40, which is particularly evident in the shape of the laminar

Flow pattern 52 along a surface, the occurrence of turbulent

Limit, if not completely prevent, flows 50. The laminar flow 52 in

The dissolving roller housing 6 can also be subjected to a counterflow 54 from the

Dissolving roller housing 6 meet, which can cause a flow braking 53.

Fig. 3 shows a view of an exemplary embodiment of a flow contour 40, which is designed as a bulge shape 41 in a separate component 3, which can be inserted as a single piece into an insert 55, as shown in Figs. 4A-4C, or directly into the

Release roller housing 6 and/or into the fiber guide channel 7, as shown and described in Fig. 2A. The flow contour 40 has a length of between 10 mm and 30 mm, here approximately exactly 28 mm. This length can also represent the transition area 31, which can be measured from an insertion area 57, as shown and described in Fig. 4. The flow contour 40 can also have a width of 5 mm to 20 mm, here approximately exactly 17 mm. The flow contour 40 can be inserted into an insert 55 via plug-in feet 44 (see Fig. 2A).

Fig. 4). In other embodiments, the flow contour 40 can be used as part -12-

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IP/M3J507883 29.07.2024 of deployment 55 with this one-piece trained.

The flow contour 40 can have a concave shape 42 in a width direction B in one area. This allows wings 43 to form, which adhere to the walls of a

fiber guidance channel 7, a transition area 31 and/or a dissolving roller housing 6 can be created to form a transition in the airflow between an area with the

to improve the flow contour 40 and without flow contour 40, i.e., in particular between a region of the fiber guidance channel 7 (see Fig. 1), the transition region 31 and/or the dissolving roller housing 6 and a region of the flow contour 40. In a

In the longitudinal direction L, the bulge shape 41 can be formed by a convex shape 45.

Figures 4A to 4C show an exemplary embodiment of an insert 55 from different perspectives of a housing 2 of a dissolving roller housing 6. A

Insert 55 is inserted via a lateral guide 56, wherein the insert 55 can form a partial circle segment 58 of the dissolving roller housing 6. It can also be provided that a

Insertion area 57 is designed to accommodate a fiber guide channel 7 (not shown here) in this

Insert the insert 55 into the insertion area 57. This allows the insert 55 to be positively inserted into the housing 2 via the lateral guide 56. This allows the

The dissolving roller housing 6 is completed in one direction of rotation of the dissolving roller (not shown). Subsequently, a part of the fiber guide channel 7 can be inserted into the insertion area 57 to connect it to the dissolving roller housing 6.

Fig. 5 shows a schematic representation of an exemplary embodiment of a

Method 300 for optimizing the airflow in a textile machine 100. This method includes in particular step 310a of measuring an airflow in the absence of a

Flow contour 40. Alternatively or additionally, method 300 can be used for the step of a

Simulation 310b of an airflow in the absence of a flow contour 40. The

Method 300 can perform the step of arranging 340 the flow contour in a specific

The area of textile machine 100 exhibits, in particular as described in detail elsewhere herein. This includes, in particular, various parameters such as geometry, size and

The position of the flow is examined in order to adapt a flow contour 40 accordingly to this flow 320 in order to achieve optimal airflow through the use of the flow contour 40. In this regard, the step of a simulation 310b can also be the simulation 310b of a flow with a digital insert 55 in a flow contour 40 as a digital -13-

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Twin is planned. The 300 process can help increase the efficiency of the 100 textile machine, reduce energy consumption and maintenance, and the

To extend the lifespan of the components.

In one step, the procedure can feature the design of a flow contour 40.

In this process, a flow contour 40 is adapted to the determined flow 320 in order to block certain areas and prevent turbulent flow 50. A digital twin of a flow contour 40, in particular of the corresponding

Insert 55, be presented and/or held in a storage device (not shown), such as on an SSD, an HDD, in a processor - especially as an electronic signal - or in similar structures, in order to be able to provide machine-readable work instructions in a manufacturing process by means of a computer program product (not shown), in order to be able to train an insert 55 accordingly, in order to be able to use it in a textile machine 100, as described elsewhere herein.

The term "may" refers in particular to optional features of the invention. Accordingly, there are also further developments and/or embodiments of the invention that additionally or alternatively include the respective feature(s).

Isolated features can also be derived from the combinations of features disclosed herein, if required.

Features were selected and, by dissolving any structural and/or functional relationship that may exist between the features, combined with other factors.

Features are used to delimit the subject matter of the claim. -14-

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Reference list 2 Housing 52 Laminar flow 3 Component 53 Flow braking 6 Dissolving roller housing 54 Counterflow 7 Fiber guide channel 55 Insert 8 Adapter channel 56 Lateral guide 9 Main airflow direction 57 Insertion area for part of the

Spinning rotor fiber guide channel 11 isolated fibers 58 pitch circle segment 12 channel plate adapter 59 plug set 13 rotor groove 100 textile machine

Rotor cup 200 Rotor spinning machine 31 Transition area 300 Process 32 Inclined walls of the spinning rotor 310a Measuring an air current in

Flow contour Absence of a flow contour 41 Bulge shape 310b Simulating an airflow in 42 Concave shape in the width direction Absence of a flow contour 43 Wing 320 — Adapting a flow contour 44 Plug-in feet 330 Designing a flow contour

Convex shape in longitudinal direction 340 Arranging a flow contour turbulent flow B Latitude direction 51 Limiting flow L Longitudinal direction -15-

Claims (11)

AAO055LU P/MS)507883 July 29, 2024 Claims 1. Textile machine (100), in particular rotor spinning machine (200), comprising a dissolving roller housing (6) for enclosing a dissolving roller for dissolving a fiber sliver into largely separated fibers (11) and a fiber guide channel (7), wherein the fiber guide channel (7) is arranged on the dissolving roller housing (6) in such a way as to discharge the largely separated fibers (11) from the dissolving roller housing (6) and to supply them to a spinning rotor (10), characterized in that a flow contour (40) is formed in the fiber guide channel (7), the dissolving roller housing (7) and/or a transition area (31) between the fiber guide channel (6) and the dissolving roller housing (7) in such a way as to ensure an optimized airflow in the fiber guide channel (7), in the to form the dissolving roller housing (6) and/or in the transition area (31) between the fiber guide channel (7) and the dissolving roller housing (6). 2. Textile machine (100) according to claim 1, characterized in that the flow contour (40) is designed to fill an area in which, without the flow contour (40), a turbulent flow (50) would be formed. 3. Textile machine (100) according to one of claims 1 or 2, characterized in that the flow contour (40) has a bulge shape (41). 4. Textile machine (100) according to one of the preceding claims, characterized in that the flow contour (40) is designed as at least one separate component (3). 5. Textile machine (100) according to one of the preceding claims, in particular according to claim 4, characterized in that the separate component (3) has a partial circular segment (58) of the dissolving roller housing (6). 6. Textile machine (100) according to one of the preceding claims, characterized in that the separate component (3) has a part of the fiber guide channel (7), a part of the dissolving roller housing (6) and at least a part of the flow contour (40). 7. Textile machine (100) according to one of the preceding claims, characterized in that the separate component (3) is arranged and designed in such a way as to serve as an insert (55) - 16 - AAO055LU P/MS)507883 to be guided laterally on 29.07.2024 (56). 8. Textile machine (100) according to one of the preceding claims, characterized in that the separate component (3) can be arranged as an insert (55) via a positive locking in alignment and positioning with at least one of the dissolving roller housing (6) and/or the fiber guide channel (7). 9. Textile machine (100) according to one of the preceding claims, characterized in that the separate component (3) is held in its position as an insert (55) by means of a leaf spring, in particular arranged externally, or a ball-spring element, in particular located internally. 10. Insert (55) for a textile machine according to one of the preceding claims, characterized in that it has a flow contour (40) which is designed and arranged to be placed in a fiber guide channel (7), a dissolving roller housing (6) and/or a transition area (31) between fiber guide channel (7) and dissolving roller housing (6) of a textile machine (100) according to one of the preceding claims. 11. Method (300) comprising the steps of: - measuring (310a) and/or simulating (310b) an airflow in the absence of a flow contour (40); - arranging (340) a flow contour (40) such that an airflow is optimized. -17 -