Textile machine with several opening rollers and installation

Abstract

A device (9, 40) on or in a textile machine (1) equipped with several opening rollers (61) has a discharge section (9, 40) and, for each opening roller (61), a chamber (9). Each chamber (9) has a first opening (43) to the respective opening roller (61) and a second opening (46) to the discharge section (9, 40). The discharge section (9, 40) has an associated inlet opening (53) for each second opening (46) of each chamber (9), which is fluidically connected to the respective second opening (46). Furthermore, the discharge section (9, 40) has an outlet opening (48), is otherwise closed, and has a discharge element (42). The drainage element (42) is designed and arranged to seal the inlet openings (53) and the outlet opening (48) against each other in terms of airflow, and to convey (foreign) material entering from the inlet openings (53) to the outlet opening (48).A textile machine (1) designed in this way comprises this device (9, 40) and a transport section (41, 49, 50). The transport section (41, 49, 50) is designed to convey (foreign) material exiting the discharge section (9, 40) from the textile machine (1) via the outlet opening (48). A system includes a textile machine (1). A fan for removing the waste from the textile machine (1) is arranged in a conveying section formed by means of a transport pipe, a transport diverter, an air separator, or another textile machine (1).

Description

[0001] The invention relates to the removal of waste from a textile machine equipped with several opening rollers, and to a system equipped with such a textile machine.

[0002] Such systems and textile machines are known. This type of textile machine serves to clean material (fiber and foreign material) coming from an upstream textile machine in the system, such as a bale opener, i.e., to separate a portion of the foreign material.

[0003] WO 2009 / 084056 A1 discloses an axial opener with two cleaning rollers. The axial opener has an inlet pipe and a partition above the cleaning rollers to separate the chambers housing the rollers and to direct the fibers to be processed partly into the first chamber and partly into the second chamber of the opener. A cleaning grate is arranged below each cleaning roller in the chamber, through which dirt is discharged into a common discharge chamber. A rotary valve is connected to the outlet of the discharge chamber.

[0004] EP 2 554 726 B1, for example, discloses an opener with a grate for separating foreign material in the form of shells and dirt from a fiber material to be opened. In technical terms, this is a cleaner. This cleaner includes a feeder. The feeder splits the incoming fiber-air stream so that both partial streams strike the first opening roller at a relatively short distance from the center. Due to its rotation and the guide elements along its outer circumference, the first opening roller transports the incoming fiber material from these points of impact outwards in opposite directions along its axis of rotation towards its two ends. The fiber material is then transferred to the opposite end of a second opening roller.The second opening roller, due to its rotation and the guide elements along its outer circumference, transports the fiber material transferred by the first opening roller from its ends inwards towards its center in two opposing directions along its axis of rotation. The combined fiber material is then discharged via an outlet to a downstream textile machine. Furthermore, a grate with a rotary valve is located below each opening roller to separate any foreign material that is removed. A disadvantage of this cleaner is the need for multiple rotary valves, which require a considerable number of components. This makes the cleaner quite expensive to manufacture.Furthermore, generating the necessary vacuum in both rotary valves requires approximately twice the amount of extraction air compared to a single rotary valve, significantly increasing energy consumption. Additionally, if a single drive mechanism is used, a gearbox is required to power both rotary valves. Finally, the two pipes housing the rotary valves must be connected via two discharge openings to a single discharge pipe to remove waste from the textile machine, further increasing the design complexity. Moreover, it is difficult to mitigate the risk of material buildup due to multiple rotary valve housings flowing into a single discharge pipe.

[0005] The purpose of the invention is to address the aforementioned disadvantages.

[0006] This problem is solved by the subject matter of the independent claims. Advantageous further developments are specified in the dependent claims.

[0007] According to the invention, a textile machine with several opening rollers and a device is provided. The device has a discharge section and, for each opening roller, a chamber. The chamber is also referred to as a discharge chamber. Each chamber comprises a first opening facing the respective opening roller and a second opening facing the discharge section. The respective chamber is thus arranged between the associated opening roller and the discharge section. The discharge section comprises an associated inlet opening for each second opening of each chamber, which is fluidically connected to one of the respective second openings. In addition, the discharge section comprises a single outlet opening. Otherwise, the discharge section is closed and has a drainage element.The drainage element is designed and arranged to, firstly, seal the inlet and outlet openings against each other from an airtight perspective, and secondly, to convey any (foreign) material entering from the inlet openings to the outlet opening. The sealing of the two chamber areas from each other is necessary because otherwise, the drainage of waste from the connected chambers could not be guaranteed, and a material buildup could occur. Sealing in the sense of the invention does not necessarily mean a hermetic seal. It has been found that a gap of, for example, 1 mm is sufficient to implement the invention. This gap prevents wear on the sealing edges between the drainage element and the areas between the immediately adjacent openings.This solution has the further advantage of allowing foreign materials to be conveyed into a single, central discharge pipe. This results in fewer parts, which simplifies the design and ultimately saves costs, as well as lower energy consumption during operation, thus reducing operating costs.

[0008] Preferably, the discharge element is formed by means of a conveyor wheel. Accordingly, the discharge section comprises a tube-like element with a wall section. Viewed in the direction of the conveyor wheel's axis of rotation, the wall section has an inner surface facing the conveyor wheel. This inner surface encompasses a region. This region is formed between two edges of the inner surface, which, with respect to the inlet openings, define the two outermost inlet openings on their opposite sides. This region of the inner surface thus follows a partial circle in cross-section. That is, the inlet openings are formed in this region such that they are arranged side by side at a distance from each other in pairs. The outlet opening is arranged outside this region at a distance from the two outermost inlet openings.The outlet opening is accordingly located between these two inlet openings, with the aforementioned two edges facing the outlet opening. This design enables the impeller to seal the inlet openings against each other and against the outlet opening. The aforementioned sealing of the inlet openings and the outlet opening in pairs is achieved by the impeller, in every rotational position, making a sealing contact in all areas between the immediately adjacent openings of the discharge section. This seal can be created on the impeller using conventional means.

[0009] The impeller can be designed as a rotary valve, so that the discharge section comprises a rotary valve. The outlet opening is formed in the wall section. The sealing according to the invention is achieved by the rotary valve, in every rotational position, bearing against the inner surface with respective vanes, thus separating the aforementioned area from the inlet openings. This is a way to implement waste discharge using conventional components in a simple and, in particular, cost-effective manner due to the small number of elements required.

[0010] Alternatively, the conveying wheel can be designed as a worm gear or a helical spur gear. The outlet opening is formed in the wall section or an end face of the discharge section. The discharge element and the outlet opening are designed such that, in every rotational position of the discharge element, every space between two immediately adjacent threads of the worm gear or teeth of the spur gear that is fluid-connected to an inlet opening is prevented from being fluid-connected to another inlet opening or to the outlet opening at the same time. This, in turn, creates the paired sealing of the openings in the discharge section according to the invention.Unlike the previous rotary valve, this variant allows waste to be transported from the end face of the discharge pipe, even though the number of parts remains essentially the same, while offering the same advantages as the rotary valve. This allows the size of the discharge section to be reduced.

[0011] Preferably, in all of the aforementioned devices, the interiors of two immediately adjacent chambers are separated from each other at their facing outer edges by means of a single wall section. The paired sealing of the inlet openings to each other is thus achieved by means of this wall section. The shared wall section between two immediately adjacent chambers allows for a very space- and material-saving design. Furthermore, the textile machine can be extended with additional opening rollers if desired.

[0012] Alternatively or additionally, the second opening of at least one chamber adjoins or seamlessly transitions into the corresponding inlet opening of the discharge section. This eliminates the need for connecting lines between this chamber and the discharge section, which also has a positive impact on design complexity and manufacturing costs.

[0013] Preferably, the transition between this chamber and the discharge section is formed by means of a wall or housing section, which simultaneously delimits at least one chamber and the discharge section, at least partially, to the outside. This creates a chamber interior that is particularly advantageous from a fluid dynamics perspective.

[0014] The wall or housing section is preferably formed in one piece. This means that only a single wall element is required, which helps to keep the number of elements low, simplifies manufacturing, and is therefore cost-effective.

[0015] Preferably, in each of the aforementioned devices, a second opening of at least one chamber, at least one (preferably the associated) inlet opening, the outlet opening of the drainage element, and / or the drainage element itself have a length corresponding to the total length of the drainage section. This makes it possible, for example, to use the housing wall of a textile machine as a chamber boundary, which has a favorable effect on manufacturing costs.

[0016] The textile machine is designed as described above. According to the invention, the textile machine comprises one of the aforementioned devices and a transport section. The transport section is designed to convey (foreign) material exiting the textile machine via the discharge opening from the discharge section. This means that the device according to the invention can be integrated into existing textile machines in a very simple manner.

[0017] This textile machine can be configured as a cleaner, stage cleaner, or feeder. The invention is therefore universally applicable.

[0018] Alternatively or additionally, the length of the discharge section or the wall section corresponds to the total length of the longest opening roller of the textile machine. This makes it possible to implement the device with as few parts as possible, even with opening rollers of different lengths, resulting in low manufacturing costs.

[0019] In each of the aforementioned textile machines, the transport section can include a discharge pipe. A fan is arranged in the discharge pipe, or in a connecting section outside the textile machine, to extract air from the discharge section using only a single volume of air. This makes it possible to effectively remove waste from all the opening rollers of the textile machine using a single active element, and with lower energy consumption.

[0020] A system according to the invention preferably comprises the latter textile machine. If the fan is arranged in a conveying section, this section can be formed by means of a transport pipe, a transport diverter, an air separator, or another textile machine. This other textile machine is designed to collect waste. This allows other, already existing extraction systems to be used.

[0021] Further features and advantages of the invention will become apparent from the following description of preferred embodiments. These show: Figure 1 shows a cleaner according to an embodiment of the invention, Figure 2 shows a vertical sectional view of the Figure 1 Reverse side, Figure 3, an enlarged view of Figure 2 , Figure 4 one to Figure 3 Similar sectional view to top view, Figure 5: a view of the cleaner from Figure 1 from a back side in Figure 3 her, figure 6, one to Figure 5 similar view of a modification of the cleaner from Figure 1 and Figure 7 a waste disposal system for a cleaner with four opening rollers, which is not covered by the claims.

[0022] Figure 1Figure 1 shows a textile machine 1 according to a first embodiment of the invention in the form of a cleaner. The cleaner 1 comprises a housing 2 which contains the essential operating elements of the cleaner 1. The housing 2 comprises, as is known, covers, flaps and a frame not shown here, which is not labelled.

[0023] A display 3 is located here on the front of the housing. Display 3 serves the purpose of making operating states, operational processes, or production values ​​visible to the outside.

[0024] Above the housing 2 is an inlet section 20, which serves to supply a cleaning section 60, enclosed by the housing 2 and described in more detail later, with fiber material. A feed section 10 serves to connect the inlet section 20 to a fiber-air supply. In the example shown, the feed section 10 essentially consists of two pipes 12 and 12 and a sensor 11 arranged between them. The sensor 11 serves, for example, to determine the velocity of the fiber-air flow. In the example shown, the right-hand pipe 12 opens into a pipe section 22. The incoming fiber-air flow is diverted via pipe section 22 into a pipe section 23, which opens into a pipe section 24 at its end furthest from pipe section 22. Pipe section 24, in turn, opens into an air separator 26 at its end furthest from pipe section 23.

[0025] The air separator 26 serves to remove excess (in extreme cases: the entire) air volume from the incoming fiber-air stream. The remaining material stream (fiber material possibly with air) is introduced into the cleaning section 60, which is enclosed by the housing 2. Furthermore, a motor 21 can be seen, which, via a fan 25 (described in more detail later), redirects the fiber-air stream arriving from the right-hand tube 12 into tube section 22 or tube section 23.

[0026] A pipe 28 serves to discharge air separated by the air separator 26 to the outside from the cleaner 1.

[0027] The housing 2 is placed on four adjustable feet 4. The adjustable feet 4 serve, in a known manner, to align the cleaner 1 on the surface (floor).

[0028] The cleaner 1 further comprises a discharge section 30 for the cleaned fiber material. The discharge section 30 comprises two tubes 31, 32, between which a sensor 33 is arranged.

[0029] Furthermore, a discharge section 40 with a pipe 41 is shown. The discharge section 40 serves to transport material (dirt, shells, etc.) separated from the incoming fiber-air stream out of the cleaner 1.

[0030] Figure 2 shows a vertical sectional view of cleaner 1 from the in Figure 1 The back side. The back side of the cleaner is 1 in Figure 1 exposed. In addition, the inlet section 10 has been omitted. This provides a clear view of pipe section 22, allowing the aforementioned fan 25 to be seen.

[0031] The air separator 26 opens at its outlet into a connection 27, which opens at its outlet via an opening 64 into a wall section 63 of the cleaning section 60. The wall section 63, in conjunction with a grate 62 arranged on its underside, defines a chamber 66 in which an opening roller 61 is arranged to rotate freely in a known manner. The opening roller 61 comprises outwardly projecting, rod-like projections, which serve to carry the fiber material into the chamber 66.

[0032] Furthermore, the cleaning section 60 has a rear chamber 66, which in turn is enclosed by a wall section 63 and an associated second grate 62. The rear chamber 66 has an opening on its upper side (not shown here) into which a connection 34 of the drainage section 30 opens on the inlet side. On the outlet side, the connection 34 opens into the pipe 31 mentioned above.

[0033] The fiber material arriving from the air separator 26 is preferably directed horizontally to the right by the opening roller 61 at the front. Figure 2 transported. To accomplish this, 66 guide elements 65 are arranged in the chamber. These guide the fiber material horizontally to the right into Figure 2 Foreign material (stones, shells, etc.) is removed through the right-hand grate 62. Below the grates 62 is the discharge section 40, which in its upper area, facing the grates 62, comprises wall sections 8. In conjunction with a rotary valve 42 and the grates 62, each wall section 8 encloses a (discharge) chamber 9.

[0034] Each chamber 9 has an opening 43 leading to the associated grate 62. The discharge pipe 44, in turn, comprises an inlet opening 53 towards each chamber 9 and an outlet opening 48 towards the discharge chamber 45.

[0035] In the example shown, the wall sections 8 are configured such that the cross-section of each chamber 9 decreases towards the rotor 42. The two outer wall sections 8 adjoin a wall section 7 at their bottom. The wall section 7 partially encloses the rotor 42 and forms a discharge tube 44 below the rotor 42. The discharge tube 44 is open towards the rotor 42. The discharge tube 44 is hollow inside, forming a discharge chamber 45. During cleaning, foreign materials fall through the grates 62 into the chambers 9 towards the rotor 42. The rotation of the rotor 42 causes the ejected foreign material to be conveyed into the discharge chamber 45.

[0036] The rotary valve 42 is designed in a known manner, and its projections preferably have elastic sealing lips that bear against the wall sections 7, 8 or have such a small distance between them that the foreign material is safely transported into the discharge chamber 45.

[0037] Figure 3 shows an enlarged view of Figure 2 In the perspective shown here, the arrangement of the guide elements 65 is particularly easy to see. They run at an acute angle to the plane of rotation of the respective opening rollers 61. Furthermore, the wall sections 8 and their transitions to the wall section 7 are clearly shown.

[0038] The wall section between the inlet openings 53, 53 forms a region 47 on its side facing the rotor 42, at which the rotor 42 seals (possibly with a gap). This seals the inlet openings 53 from each other. The wall section 7 defines two regions 46, 46. Each region 46 is thus bounded on both sides by a corresponding inlet opening 53 and the outlet opening 48. In regions 46, 46, the rotor 42 therefore seals the inlet openings 53, 53 against the outlet opening 48 as well.

[0039] Figure 4 shows a to Figure 3A similar sectional view to the top view. The fiber material enters the left chamber 66 through connection 27. The clockwise rotating opening roller 61 moves the fiber material along the left grate 62 and the wall section 63 perpendicular to the plane of the sheet and out of the sheet. Via a front transfer section 5 (not visible here), the (pre-)cleaned fiber material from the left chamber 66 enters the right chamber 66 and is transported into the sheet perpendicular to the plane of the sheet by the opening roller 61, which also rotates clockwise here. At the rear end of chamber 66, the cleaned fiber material enters connection 34 and from there into the pipe 31 of the discharge section 30.

[0040] At the rear end of the discharge chamber 45, a pipe 51 of the drainage section 40 connects and, as can be seen through two windows 6, extends from the discharge chamber 45 to the right and then in an arc upwards.

[0041] The placement of the transport areas 10, 20, 30 and 41 relating to the material flow above the housing 2 of the cleaner 1 allows for the installation of material transport pipes on the top side. This minimizes the footprint of the cleaner 1, and the connection to upstream and downstream textile machines can be standardized.

[0042] Figure 5 shows the cleaner 1 in a perspective view from a rear view in Figure 3 Here, the outer wall of housing 2, which faces forward, has been omitted, so that the view of the elements arranged behind it is unobstructed.

[0043] In the upper third, two rotary bearings 67, 67 are arranged, in which one of the two opening rollers 61 is mounted so as to be freely rotatable.

[0044] Below the two bearings 67, 67 are the grates 62, 62. Below the grates is a bearing 49 for the rotary valve 42. In the example shown, the rotary bearing 49 is attached to the visible wall of the housing 2, to which the bearings 67, 67 are also attached, via a cover 2a.

[0045] Below the cover 2a, the pipe 51 of the discharge section 40 branches off from the housing 2, runs diagonally upwards to the left, and then curves vertically. A sensor 50 is attached to the vertically upward-pointing end of the pipe 51; this sensor 50 serves, for example, to determine the amount of waste per unit of time. At its outlet end, facing away from the pipe 51, the sensor 50 opens into the pipe 41 of the discharge section 40.

[0046] Furthermore, the discharge pipe 44 can be seen, to whose frontal end the pipe 51 is connected on the inlet side. The discharge pipe 44 is stabilized in its shape by means of stiffeners 52.

[0047] Figure 6 shows a to Figure 5 similar view of a modification of cleaner 1. In contrast to the one in Figure 4 The illustrated version lacks the cover 2a. That is, the rotary bearing 49 is attached directly to the partition wall of the housing 2.

[0048] Figure 7 shows a waste disposal system for a cleaner 1 with four opening rollers 61, which does not fall under the claims.

[0049] That is, there are four chambers 66, whereby the fiber material is moved via the inlet 27, the left chamber 66, a left transfer section 5, the second chamber 66 from the left, a middle transfer section 5, the second chamber 66 from the right, a right transfer section 5, and the right chamber 66 towards the outlet 34. Coming from the inlet 27, the fiber material passes through the left chamber 66 perpendicularly to the plane of the leaf, out of the plane of the leaf, the left transfer section 5, the following chamber 66 perpendicularly to the plane of the leaf, into the plane of the leaf, the middle transfer section 5, the following chamber 66 perpendicularly to the plane of the leaf, out of the plane of the leaf, the right transfer section 5, the right chamber 66 perpendicularly to the plane of the leaf, into the plane of the leaf, and then into the outlet 34.

[0050] The grates 62 associated with the two left opening rollers 66 adjoin a single chamber 9 on their underside. This chamber 9 is therefore responsible for two opening rollers 61, 61 or chambers 66, 66. This chamber 9 opens into the discharge pipe 44 at its end furthest from the opening rollers 61, 61.

[0051] The grates 62, 62 of the two right-hand chambers 66, 66 each open into a separate chamber 9, 9. These chambers 9, 9 also open at their ends furthest from the respective grate 62 into the discharge chamber 44, so that the rotary valve 42 is able to discharge the separated material towards pipe 51.

[0052] The invention is not limited to the prescribed embodiments.

[0053] The number of opening rollers (61) can vary. Likewise, the fiber transport can vary; it does not have to occur as shown in the diagrams.

[0054] For example, it is conceivable to introduce the fiber material flow centrally with respect to the first opening roller 61 into the associated chamber 66, to deflect it to the right and left with respect to the opening roller 61, and to combine it again in the last chamber 66 and discharge it through a common outlet 34.

[0055] In the illustrated embodiment, each grate 62 opens into a corresponding chamber 9 on the outlet side. However, it is equally conceivable that each grate 62 opens into a flow line, which then opens into the discharge pipe 44.

[0056] Preferably, the chambers 9, 66, the discharge pipe 44 and the discharge pipe space 45 are closed at their end faces (apart from the connection of the pipe 51) by a wall of the housing 2 of the cleaner.

[0057] The discharge tube 44 can be replaced by another chamber-like element designed such that the rotor 42 seals the connected chambers 9 against each other and preferably also against the tube 51. This is preferably achieved by having the inside of this chamber-like element follow a partial circle in cross-section, along which the sealing elements of the rotor 42 (for example, sealing lips) run. The seal only needs to be such that no separated foreign material can slip through. That is, the sealing lips can have a small gap (for example, 1 mm) to the respective inside surface.

[0058] The rotary valve 42 can be replaced by a worm gear, so that it actively moves the separated material towards pipe 41. In this case, the discharge chamber 45 can be omitted. As part of the aforementioned sealing, the worm gear is designed so that it is unable to (temporarily) connect the two openings 53, 48. A helical gear, but of a very long design, is also conceivable instead of a worm gear.

[0059] The wall sections 8, 63 can be formed in one piece, resulting in a combined chamber 9, 66 in which the grate(s) 62 and the opening roller(s) 61 are arranged.

[0060] Preferably the depth of the chambers corresponds to 9.66 in Figure 7 a length of the discharge pipe 44. However, these dimensions can also vary.

[0061] At the in Figure 7In the illustrated embodiment, which is not covered by the claims, two rotary valves could also be configured by way of example, each being assigned two opening rollers 61, 61. Alternatively, one rotary valve is responsible for one chamber 8 and the other for three chambers 8.

[0062] Preferably, the length of the discharge tube 44 is as long as the longest opening roller in the cleaner 1. This ensures that all the separated material is safely discharged from the cleaner 1.

[0063] For example, in cleaner 1 a fan can be arranged in pipe 41 to feed the cleaned fiber material to a downstream textile machine such as a mixer.

[0064] Since the cleaner 1 is integrated into a system in which fiber material is transported from one textile machine to another via pipe systems (= conveying sections), a fan can be located in a conveying section arranged after the cleaner 1, i.e., outside the cleaner 1 itself. Therefore, the cleaner 1 itself does not require an active extraction system to transport separated material out of the cleaner.

[0065] Such a conveying section can be a transport pipe, a transport diverter, an air separator (for example, of a downstream textile machine) or such a textile machine itself.

[0066] The invention can be applied to a step cleaner or a feeder instead of a cleaner.

[0067] As a result, the invention offers a simple and cost-effective way to safely remove rejected foreign material from a textile machine. Reference symbol list

[0068] 1 Textile machine 2 Housing 2a Cover 3 Display 4 Adjustable foot 5 Transfer section 6 Window 7 Wall section 8 Wall section 9 Chamber or discharge chamber 10 Feed section 11 Sensor 12 Pipe 20 Inlet section 21 Motor 22 - 24 Pipe section 25 Fan 26 Air separator 27 Connection 28 Pipe 30 Discharge section 31, 32 Pipe 33 Sensor 34 Connection 40 Discharge section 41 Pipe 42 Rotary wheel 43 Opening 44 Discharge pipe 45 Discharge chamber 46 Area 47 Area 48 Outlet opening 49 Swivel bearing 50 Sensor 51 Pipe 52 Stiffener 53 Inlet opening 60 Cleaning section 61 Opening roller 62 Grate 63 Wall section 64 Opening 65 Guide element 66 Chamber 67 Rotary bearing

Claims

1. Textile machine (1), • with several opening rollers (61) and • comprising: - a device (9, 40) comprising: ∘ for each of the plurality of opening rollers (61) a discharge chamber (9) and ∘ a discharge section (40), ∘ wherein ▪ each of the discharge chambers (9) • includes a first opening (43) to the respective opening roller (61), • includes a second opening to the discharge section (40) and • is otherwise closed and ▪ the discharge section (40) • for each second opening of each of the discharge chambers (9) includes an associated inlet opening (53), which is fluidically connected to a respective one of the second openings, characterized in that the discharge section (40) • includes a single outlet opening (48), • is otherwise closed and • comprises a discharge element (42), which is designed and arranged ∘ to seal the inlet openings (53) and the single outlet opening (48) against each other in terms of air flow, and ∘ to convey material entering from the inlet openings (53) to the single outlet opening (48), and in that the textile machine (1) • comprises a transport section (41, 49, 50) designed to convey material coming out of the discharge section (40) out of the textile machine (1) via the outlet opening (48).

2. Textile machine (1) according to claim 1, wherein • the discharge element (42) is formed by means of a conveyor wheel (42) and • the discharge section (40) has a tubular element (44) with a wall section (7) which, viewed in the direction of an axis of rotation of the conveyor wheel (42), - has an inner side facing the conveyor wheel (42) with an area (47), · that ∘ is formed between two edges of the inner side which, with respect to the inlet openings (53), delimit the outer two inlet openings (53) on their opposite sides, and ∘ follows a pitch circle, and · in which the inlet openings (53) are formed next to each other in paired distance, • the outlet opening (48) is arranged outside the area (47) at a distance from the outer two inlet openings (53), and • the sealing of the inlet openings (53) and the outlet opening (48) is realized in pairs with respect to one another, in that the conveyor wheel (42) is arranged in a sealing manner in each rotational position in all regions (47) between the respective immediately adjacent ones of all openings (48, 53) of the discharge section (40).

3. Textile machine (1) according to claim 2, wherein • the conveyor wheel (42) is designed as a cellular wheel (42), • the outlet opening (48) is formed in the wall portion (7), and • the sealing is realized in that the cell wheel (42) is arranged in each rotational position with respective vanes in the one area (47) of the inner side in a sealing manner such that the respective vanes separate the one area (47) from the inlet openings (53).

4. Textile machine (1) according to claim 2, wherein • the conveyor wheel is designed as - a worm wheel or - a helical toothed spur gear, • the outlet opening (48) is formed in - the wall section (7) or - a front end of the discharge section (40) and • the discharge element (42) and the outlet opening (48) are designed such that, in each rotational position of the discharge element (42), each intermediate space between two directly adjacent flights of the worm gear or teeth of the spur gear which is flow-connected to an inlet opening (53) is prevented from being simultaneously flow-connected to another inlet opening (53) or to the outlet opening (48).

5. Textile machine (1) according to one of the preceding claims, wherein the interior spaces of two directly adjacent of the discharge chambers (9) are separated from each other at their mutually facing outer edges by means of a single wall section (7).

6. Textile machine (1) according to one of the preceding claims, wherein a second opening (46) of at least one of the discharge chambers (9) adjoins the associated inlet opening (53) of the discharge section (40) or merges seamlessly into it.

7. Textile machine (1) according to claim 6, wherein the transition between the at least one of the discharge chambers (9) and the discharge section (40) is formed by means of a wall or housing section (7, 8), which at the same time delimits the at least one of the discharge chambers (9) and the discharge section (40) at least in sections towards the outside.

8. Textile machine (1) according to claim 7, wherein the wall or housing section (7, 8) is formed in one piece.

9. The textile machine (1) according to any one of the preceding claims, wherein a second opening (46) of at least one of the discharge chambers (9), at least one inlet opening (53), the outlet opening (48) of the discharge member (42) and / or the discharge member (42) has or have a length corresponding to an entire length of the discharge section (40).

10. Textile machine (1) according to one of claims 1 to 9, designed as a • cleaner, • step cleaner or • feeder.

11. The textile machine (1) according to any one of claims 1 to 10, wherein a length of the discharge section 40) or the wall portion (7) corresponds to a total length of the longest opening roller (61) of the textile machine (1).

12. Textile machine (1) according to any one of claims 1 to 11, wherein • the transport section (41, 49, 50) includes a discharge pipe (41) and • a fan is arranged in the discharge pipe (41) or a forwarding section adjoining it outside the textile machine (1) to draw air away from the discharge section (40).

13. Apparatus, • comprising a textile machine (1) according to claim 12, • wherein in the case of the arrangement of the fan in a forwarding section, the forwarding section is formed - by means of a transport tube, - a transport switch, - an air separator or - another textile machine, designed to collect waste.

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