Spinning can support device for rotating a spinning can, textile machine and process

Abstract

The invention relates to a spinning can support device (20) for rotating a spinning can (4), in particular a self-propelled one, under a storage device (14) of a textile machine (1), wherein the spinning can support device (20) comprises a holding device (43) that can be fixed to a base body (7) of the textile machine (1), a can plate (13) that can be traversed by the spinning can (4) and which is rotatably attached to the holding device (43) about a vertical axis (21), and a drive and brake system (22) for rotating the can plate (13) about the vertical axis (21) and braking the can plate (13), characterized in that, for repeatable braking and holding of the can plate (13) in a defined loading rotation position, the drive and brake system (22) comprises a rotation position sensor (48) which is configured to detect the defined loading rotation position of the can plate (13). Furthermore, the invention relates to a textile machine and a method.

Description

[0001] The invention relates to a spinning can support device for rotating a spinning can, in particular a self-propelled one, under a storage device of a textile machine, wherein the spinning can support device comprises a holding device that can be fixed to a base body of the textile machine, a can plate that the spinning can travel over and which is rotatably mounted on the holding device about a vertical axis, and a drive and braking system for rotating the can plate about the vertical axis and braking the can plate. The invention further relates to a textile machine and a method.

[0002] From DE102015110585 A1, a can changer for the linear changing of a spinning can on a spinning preparation machine, for example, a drafting machine, carding machine, or combing machine, is known. The can changer has a driven shifting device to convey an empty spinning can on a base plate along a guide from a waiting position to a rotatably driven can plate.

[0003] EP3331791 B1 discloses a device for filling a spinning can with fiber sliver produced in a spinning preparation plant. The device has two can positions arranged side by side for sequentially filling the spinning cans. Each can position has a rotatably driven can plate. Three rotary transmission profiles are mounted on the top surface of each can plate, their free ends curved in the direction of rotation of the can plate. When the can plate begins to rotate, the rotary transmission rods engage the wheels of the spinning can from behind.

[0004] A disadvantage is that the spinning wheel does not always remain in the same rotating position. This can lead to uncertainties regarding the alignment of the spinning wheel and negatively affect automated processes.

[0005] The object of the invention is to provide a spinning can support device or a textile machine that can be better integrated into automated processes. Furthermore, the object of the invention is to provide a method for filling the spinning can that makes automated operation smoother, more efficient, and more reliable.

[0006] The task is solved by a spinning can support device of the type mentioned above in that, for repeatable braking and holding of the can plate in a defined loading rotation position, the drive and braking system has a rotation position sensor which is configured to detect the defined loading rotation position of the can plate.

[0007] The rotational position sensor leads to improved control and reproducibility of the rotational position and optimizes the reliability of the spinning can support system. A key advantage is that the drive and braking system can always bring the can platform to a standstill in the loading rotational position, which is a fixed, predetermined rotational position around the platform's vertical axis. This ensures that the rotational position of the platform at the beginning of each rotation corresponds to the position reached at the end of the rotation. This allows for more convenient and smoother loading and / or unloading of the spinning can, as the orientation of the spinning can after the rotation is now known. Consequently, the spinning can support system can be better integrated into automated processes. This is particularly beneficial when the spinning can is self-propelled or transported by an autonomous vehicle.

[0008] If the drive and braking system is configured to always bring the can tray to a standstill in a single defined loading position, this single defined loading position can also be referred to as the charging and unloading position. Specifically, only one defined loading position is provided. Alternatively, several defined loading positions can be provided, into which the drive and braking system can bring the can tray to a defined standstill. In particular, a maximum of four, and more preferably a maximum of two, defined loading positions are provided. For example, a first defined loading position, which can also be referred to as the charging position, and a second defined loading position, which can also be referred to as the unloading position, can be provided.This can be advantageous if the spinning can holder is to assume the loading position for loading and the unloading position for unloading, which, compared to the initial loading position, can be rotated by, for example, 90, 180, or 270 degrees around the vertical axis to realign the spinning can before it leaves the can holder. This allows the spinning can support device to be integrated into a particularly compact textile machine.

[0009] The rotary position sensor system can consist of a stationary rotary position sensor relative to the canister plate and at least one position marker located on the canister plate. This ensures, in a simple manner, that the canister plate can always be brought to a standstill in the desired loading / rotating position, significantly increasing the efficiency and accuracy of tasks such as loading, unloading, automated processes, etc. Alternatively, the rotary position sensor can also be located on the canister plate and the position marker fixed in place. A rotary encoder can also be integrated directly into the drive of the drive and braking system, for example, an electric motor.

[0010] The rotary position sensor can be, in particular, an incremental rotary position sensor that generates pulses when the position marker is passed. These generated pulses can be converted into electrical signals in a known manner and evaluated by a control unit of the drive and braking system or a higher-level control unit of the textile machine to detect when the can tray has entered the loading rotary position. This allows for the simple and cost-effective detection of when the can tray is decelerating, thus bringing the tray to a stop in the loading rotary position.In filling mode, where the drive and brake system rotates the can plate, at least one position marker will repeatedly pass the rotation position sensor and be detected each time, so that this information can be used, for example, to determine the rotational speed of the can plate.

[0011] The rotational position sensor can also include an absolute rotational position sensor, which provides the exact absolute rotational position. Since precise absolute detection of the can's rotational position is not necessary, an incremental rotational position sensor is preferable for cost reasons. In principle, the rotational position sensor can also include a photoelectric sensor, an optical sensor, an ultrasonic sensor, a magnetic sensor, a switch, or similar devices to generate the pulses when the position marker is passed. The choice of rotational position sensor depends on the technical requirements, the environment, and other factors. For example, at least one position marker can be a magnetic marker or an optical marker. A magnetic point or a magnetic strip can be detected by a magnetic sensor.A reflective or non-reflective stripe, color changes, or patterns can be detected by an optical sensor. Similarly, a light barrier can be used, where a light beam is interrupted to indicate the specific position. Depending on the requirements, the rotary position sensor can also include a Hall sensor capable of detecting changes in magnetic fields. Various types of marker points or sensors can be used to acquire the desired position information, depending on the requirements, precision, and application.

[0012] For example, the at least one position marker can be a cam. The cam can be an eccentrically shaped protrusion that is detected, for example, by the rotary position sensor. The at least one position marker, in particular the cam, can be arranged on the can plate. Furthermore, the at least one position marker, in particular the cam, can be arranged in a rotationally fixed manner on a driven element of the drive and brake system that is arranged concentrically to the vertical axis. For example, the at least one position marker, in particular the cam, can be arranged on a driven wheel, for example, by being integrally formed on it. The at least one position marker, in particular the cam, can project radially to the vertical axis over a central outer circumference of the driven element.Alternatively, at least one position marker can also be a defined defect, depression, or the like, which may be present on a ring-shaped component with evenly distributed teeth or protrusions. If the rotational position sensor normally detects regularly spaced teeth, protrusions, or the like and suddenly encounters the defect where a tooth is missing or a depression is present, it can recognize this point as a position marker.

[0013] In a further embodiment, the rotary position sensor can be arranged such that it aligns with at least one position marker in the charging rotary position. This increases the precision of assuming the charging rotary position.

[0014] According to a first embodiment, the rotational position sensor system can be provided with a second rotational position sensor upstream of the first rotational position sensor in one direction of rotation of the canning pot to define the braking point of the canning pot. This allows the canning pot to be braked more precisely and come to a complete stop exactly in the loading rotational position. If the canning pot is to be stopped, for example, because the filling process of the spinning pot is to be completed, the braking process can be initiated as soon as the second rotational position sensor has detected at least one position marker. For example, a circumferential distance around the vertical axis between the first and second rotational position sensors can be adjustable. This distance refers to a circumferential distance or an arc segment around the vertical axis.By adjusting the distance, a braking angle of the cane plate can be taken into account. The braking angle corresponds to the rotational movement of the cane plate around its vertical axis as it decelerates and eventually comes to a standstill. The braking angle can depend on various factors, such as the size of the cane used and the associated maximum weight of the spinning can to be filled, the diameter of the cane plate, the inertia of the cane plate, the maximum rotational speed in the working direction of the cane plate, and the like. Therefore, by adjusting this angle, the loading rotation position can be achieved more precisely. The distance between the first and second rotation position sensors can also be preset at the factory.

[0015] According to a second embodiment, which is an alternative to the aforementioned first embodiment, the rotary position sensor can comprise precisely one rotary position sensor. This reduces manufacturing costs. Several position markers, for example two, can be attached to the can plate. For instance, the first position marker can serve to identify a braking point, at which point the can plate can be braked. The second position marker, located further along the direction of rotation, can serve to identify the loading position, at which point the can plate is brought to a complete standstill.

[0016] Furthermore, the spinning canister plate can have at least one parking stop element on its upper surface facing away from the holder. This allows for the repeatable positioning of the spinning canister during loading and secures it in a defined loading position on the canister plate during rotation around its vertical axis. This prevents the spinning canister from slipping or changing its position during rotation of the canister plate. In other words, at least one parking stop element ensures that the spinning canister's relative position to the canister plate does not change during the rotation process. This results in precise and reproducible alignment of the spinning canister on the canister plate, significantly increasing the efficiency and accuracy of tasks such as loading, unloading, automated processes, etc. This ensures that the orientation of the spinning canister is always the same when loading and unloading it onto the canister plate while it is in the loading / rotating position.This is particularly advantageous if the spinning wheel is self-propelled or driverless. The defined loading position can also be referred to as the defined entry and exit position.

[0017] According to one embodiment, at least one parking stop element can be designed as a recess for receiving a wheel, in particular a drive wheel of the spinning can. The usually unsteered, driven wheel of the spinning can, or the drive wheel itself, can enter this recess, which can be formed on or in the upper surface of the can's base, during the loading process. This arrangement ensures that the spinning can remains stably and securely positioned on the base during rotation. In particular, the base has several parking stop elements. For example, exactly two parking stop elements can be provided to receive the two drive wheels of the driverless spinning can. Such a driverless-transported spinning can is described in the applicant's German patent application of May 10, 2022, file number 10 2022 111 675, which was not yet published at the time of filing.The spinning can described in Figure 1, to which full reference is hereby made, is described. The driverless transported spinning can has a chassis with two electrically driven rigid wheels and, for example, two support wheels that can swivel freely around the vehicle's vertical axis. The at least one parking stop element can also be designed as a traversable elevation on the top of the plate, such as a bump, a road undulation, or the like, so that the wheel to be received, in particular the drive wheel of the spinning can, first travels over a first elevation and is held between two adjacent elevations. According to a further embodiment, the at least one parking stop element can be a non-slip coating on the top of the plate. This increases the friction between the can plate and the spinning can, thereby ensuring that the spinning can maintains its position securely during the rotation of the can plate.Magnets may also be provided to hold the spinning can, or mechanical devices such as clamps, gripping devices, or the like.

[0018] Furthermore, at least one of the depressions can be a transverse trough. This transverse trough can be designed as a depression or indentation in the upper surface of the spinning tray, serving to accommodate the respective wheel. For this purpose, the depression, particularly the transverse trough, can be designed so that the wheel fits into it and can be positioned within it. The at least one transverse trough can define a trough axis that runs perpendicular to a main axis of the spinning tray. The main axis can be a longitudinal axis running perpendicular to the vertical axis, which, in the loading / rotating position of the spinning tray, is aligned parallel to a track for the spinning tray. In this way, the spinning tray, whether pushed onto the spinning tray or self-propelled, can enter the transverse trough with its respective wheel.This ensures, firstly, safe and uncomplicated loading and unloading of the spinning can, and secondly, a secure hold of the spinning can on the can plate during the turning process.

[0019] The profile of at least one parking stop element, particularly the transverse recess, can be V-shaped. This offers the advantage of increased stability and guidance for the spinning wheel. The wheel is guided and centered within the respective V-shaped parking stop element, especially the transverse recess. This results in precise positioning of the wheel within the recess and minimizes lateral movement or inaccuracies.

[0020] Furthermore, the spinning wheel tray can have recesses on its upper surface to accommodate additional, particularly free-running, wheels of the spinning wheel. These recesses serve to bring the spinning wheel not accommodated by the at least one parking stop element to the same height as the wheel accommodated by the parking stop element. This ensures that the spinning wheel is horizontally aligned in the loading position and not tilted. Specifically, the recesses are designed to allow the spinning wheel, or rather its wheels, to pass through without requiring centering or positioning of the wheels.

[0021] The can holder can be arranged in an interchangeable manner. Because the can holder incorporates at least one parking stop element and optional passage recesses, it can be easily adapted to the spinning cans used in the spinning mill. In particular, the spacing of the elements, especially the parking stop element and the passage recesses, as well as their size, geometry, and number, can be adapted to the spinning cans used in the spinning mill. The parking stop element can have a longitudinal extent, that is, an extent along the longitudinal axis of the can holder, of at least 50 millimeters and / or a maximum of 150 millimeters. Preferably, the longitudinal extent is between 60 millimeters and 90 millimeters, and more preferably, it is at least approximately 75 millimeters.The at least one parking stop element can have a transverse extent, that is, an extent along the transverse axis of the can's bowl, of at least 30 millimeters and / or a maximum of 1000 millimeters. Preferably, the transverse extent is between 45 millimeters and 90 millimeters, and more preferably, the transverse extent is at least approximately 60 millimeters. The at least one parking stop element can have a depth, that is, an extent along the vertical axis of the can's bowl, of at least 3 millimeters and / or a maximum of 20 millimeters. Preferably, the depth is between 5 millimeters and 15 millimeters, and more preferably, the depth is at least approximately 9 millimeters.

[0022] The drive and braking system can include a drive motor, such as an electric motor. A driven wheel can be mounted on the jug base, which can be connected, for example, via a drive gear to a drive wheel that may be mounted on a motor shaft of the drive motor. In particular, the drive gear can be a belt drive, where a belt can engage positively with the drive wheel and frictionally with the driven wheel. The belt can be, for example, a V-belt, toothed belt, etc. Alternatively, a chain, rope, band, or similar can also be used as the drive element. To brake the jug base, the drive force of the drive motor, or its speed, can be electronically controlled and, in particular, gradually reduced to achieve controlled deceleration. Additionally or alternatively, the jug base could be braked by friction.This can be achieved, for example, by increasing the belt's pressure on the driven wheel. Similarly, the belt tension can be adjusted using an adjustable tensioning device, particularly one with at least one tensioning pulley. Other means of controlled braking of a rotating can tray are also possible. For braking, the can tray could be decoupled from the drive motor's drive train. The drive and braking system could also include an electromagnetic brake, a friction brake, a pneumatic or hydraulic brake, etc. Alternatively, a direct drive motor with a brake is also possible, which directly drives the can tray during filling and brakes it after filling is complete, stopping it in the loading rotation position.

[0023] Furthermore, the drive motor can be equipped with a parking brake. This allows the drive motor to securely hold the can tray in its rest position when stationary, thus simplifying loading and unloading. The parking brake can be activated when the can tray has come to a standstill in the loading rotation position, i.e., when the can tray's rotational speed is zero revolutions per minute. The parking brake could also be implemented using a frequency converter.

[0024] Another solution to the aforementioned problem consists of a textile machine with the spinning can support device described above and a control unit configured to control the spinning can support device. The textile machine according to the invention offers the same advantages as those described in connection with the spinning can support device according to the invention, so reference is made here, for the sake of brevity, to the description above. It is understood that all the aforementioned embodiments of the spinning can support device are transferable to the textile machine and vice versa.

[0025] Furthermore, it may be provided that the textile machine has a platform accessible to the spinning can and defining a travel path for the spinning can, into which the can plate may be recessed, wherein the control unit is configured to control the drive and brake system in such a way that the can plate remains stationary or comes to a standstill in the loading rotation position for loading and unloading the spinning can, wherein at least one parking stop element is arranged at a right angle to the travel path in the loading rotation position.

[0026] The holding device and other components, such as the drive and braking system, can be attached to the base body. The base body of the textile machine can include the base plate and / or a support structure that holds the base plate, etc. The spinning can tray can be recessed into the base body, for example, the base plate. Preferably, the top surface of the spinning can tray is flush with the accessible surface of the base body, particularly the base plate. This allows for easy loading or sliding of the spinning can from the base plate onto the tray. This is particularly advantageous if the spinning can is self-propelled or driverless and / or if the spinning can is pushed onto the tray by means of a can pusher. In particular, the textile machine includes the can pusher for sliding the spinning can or several spinning cans along the travel path.

[0027] The control unit can be signal-connected to the drive and brake system. Specifically, the control unit is configured to control the drive and brake system such that the spinning can tray is driven in rotation during the filling process of the spinning can placed on the tray, and then braked towards the end of the filling process, finally coming to a standstill in the loading rotation position. The braking process can be initiated by the control unit when the spinning can is full. The control unit can detect this, for example, by registering that a defined quantity of fiber sliver has been produced by the textile machine. Alternatively, the reaching of a predetermined fill level in the spinning cans can be detected by optical systems, such as a camera, or the filling process can be terminated by manual operator input.

[0028] The textile machine can be, for example, a spinning preparation machine, in particular a can filling station, such as the T-MOVE or T-MOVE2 from Trützschler Group SE, a can changer, a drawing machine, a combing machine, a carding machine, etc.

[0029] Another solution to the above-mentioned problem consists of a method for filling the spinning can, in particular the self-propelled one, on the textile machine described above, wherein the method comprises the following steps: - Holding the jug plate in at least one loading rotation position; - Loading the spinning can onto the can plate, in particular wherein the spinning can is positioned and secured in the loading position on the can plate by means of at least one parking stop element; - Filling the spinning can with fiber ribbon delivered from the textile machine, while the drive and braking system rotates the can plate around the vertical axis; - Initiation of a braking process of the can plate by the control unit; - Braking of the can plate; - Holding the jug tray in at least one loading rotation position when the rotation position sensor detects the loading rotation position; and - Unloading the spinning jug from the jug plate.

[0030] The method according to the invention offers the same advantages as those described in connection with the textile machine according to the invention or the spinning can support device, so reference is made here, for the sake of brevity, to the above description. It is understood that all mentioned embodiments of the spinning can support device or the textile machine are transferable to the method and vice versa.

[0031] In a further embodiment, if the rotary position sensor system includes the first and the second rotary position sensor, the method can provide for the following steps: - Holding the jug plate in at least one loading rotation position in which at least one position mark aligns with the first rotation position sensor; - Loading the spinning can onto the can plate, in particular wherein the spinning can is positioned and secured in the loading position on the can plate by means of at least one parking stop element; - Filling the spinning can with fiber ribbon delivered from the textile machine, while the drive and braking system rotates the can plate around the vertical axis; - Initiation of a braking process of the can plate by the control unit; - Braking of the jug plate when the second rotation position sensor detects the position mark; - Holding the jug plate in at least one loading rotation position when the first rotation position sensor detects the position mark; and - Unloading the spinning jug from the jug plate.

[0032] The braking process can be initiated when the spinning can has been filled with a predetermined length of the produced fiber sliver, after manual user input, etc. The control unit then waits until the second rotation sensor detects that at least one position marker has passed. Only then does braking begin. The drive and braking system brings the can plate to a standstill when at least one position marker is detected by the first rotation sensor. The can plate is then in the loading rotation position.

[0033] In an alternative embodiment, if the rotary position sensor system only includes the one rotary position sensor, the procedure can provide for the following steps: - Holding the jug plate in at least one loading rotation position in which at least one position mark is aligned with the rotation position sensor; - Loading the spinning can onto the can plate, in particular wherein the spinning can is positioned and secured in the loading position on the can plate by means of at least one parking stop element; - Filling the spinning can with fiber ribbon delivered from the textile machine, while the drive and braking system rotates the can plate around the vertical axis; - Initiation of a braking process of the can plate by the control unit; - Braking of the jug plate when the rotation position sensor detects the position mark; - Slowly rotating the jug plate around its vertical axis, especially around 360 degrees; - Holding the jug plate in at least one loading rotation position when the rotation position sensor detects the position mark again; and - Unloading the spinning jug from the jug plate.

[0034] Unloading the spinning jug from the jug tray can be supported, carried out manually, or done independently by the drive of the self-propelled spinning jug, for example.

[0035] Further measures improving the invention are described in more detail below together with a description of a preferred embodiment of the invention with reference to the figures.

[0036] They show: Fig. 1 a perspective view of a textile machine according to an embodiment of the present invention; Fig. 2 a top view of a section of the textile machine comprising a spinning can support device according to the invention; Fig. 3 a partially cut-away side view of a spinning can positioned on a can plate of the spinning can support device in a loading position; Fig. 4 a perspective view of the top of the pitcher plate; Fig. 5 a perspective view of the top of an alternative pitcher plate; Fig. 6. A top view of the spinning can support device positioned in a loading rotation position, with parts of the textile machine omitted for clarity; Fig. 7 the illustration of the spinning can carrying device from Fig. 6, which is located at a braking point here; Fig. 8. A driverless transported spinning can in a bottom view, following a magnetic tape; and Fig. 9 a flowchart of a procedure for automatically filling the self-driving spinning can Fig. 8 on the textile machine from the Fig. 1.

[0037] In the Fig. Figure 1 shows a textile machine 1 according to an embodiment of the present invention. Further details of the textile machine 1 are described in the Fig. Shown 2 to 7.

[0038] By means of ramp devices 2, 3, both manually and driverless transported spinning cans 4 can overcome a height difference 5 between a surface 6 on which the textile machine 1 is set up and a raised base plate 7 of the textile machine 1. An exemplary embodiment of the driverless transported spinning can 4 is shown in the Fig. Figure 8 shows a view of the underside of the spinning can 4. Such a driverless transported spinning can 4 is described in the applicant's German patent application of May 10, 2022, file number 10 2022 111 675.1, which was unpublished at the time of filing and to which full reference is hereby made. According to the Fig. Figure 8 shows that the driverless spinning can 4 has a chassis 8 with two electrically driven rigid wheels 9, 10 and two support wheels 11, 12 that are freely pivotable about the vehicle's vertical axis. The chassis 8 is designed with four wheels and, due to the staggered arrangement of the wheels 9, 10, 11, 12 in the transverse direction of the vehicle, has a total of four tracks. It goes without saying that the driverless spinning can 4 can also have a differently designed chassis 8, for example, one with three tracks or with three wheels, six wheels, etc.

[0039] With regard to the Fig. For example, the left ramp 2 can serve as an entry ramp and the right ramp 3 as an exit ramp for the spinning can 4. Likewise, the textile machine 1 could also have only one of the two ramps 2, 3, which could then serve as the entry and exit ramps. Although the textile machine 1 is designed in the above-ground version shown here, it can also be designed in an underfloor version, in which the base plate 7 is flush with the surface 6 and, accordingly, no ramps 2, 3 are necessary.

[0040] The textile machine 1 has a lay-up device 14, which may include a lay-up plate that can be driven to rotate about a vertical axis 21. Below the lay-up device 14, a spinning can support device 20 with a rotating can plate 13 is arranged to rotate the spinning can 4 about the vertical axis 21 during a filling process in which fiber sliver (not shown) produced by the textile machine 1 is laid down into the spinning can 4 via the lay-up device 14.

[0041] To guide the driverless spinning can 4 onto the can turntable 13 and, after completion of the filling process, back down from the base plate 7, the textile machine 1 can have a guidance arrangement 15 for contactless guidance of the spinning can 4. The guidance arrangement 15 comprises, for example, magnetic strips 16, 17, 18, which are arranged on the two ramp devices 2, 3 and the base plate 7. Furthermore, the guidance arrangement 15 can include RFID tags with address information representing the tag's location. For example, an RFID tag 42 can be arranged on or attached to the can turntable 13, by means of which the driverless spinning can 4 can register reaching the turntable 13. When the spinning can 4, or a reader on the spinning can 4, reads the RFID tag 42, it recognizes that it is on the can turntable 13.By means of the guide arrangement 15, the spinning can 4 can, for example, drive driverless up the left ramp device 2, which here serves as a ramp, drive along a predetermined path 19 on the base plate 7 to the can turntable 13 and, after completion of the filling process, then drive down the right ramp device 3, which here serves as a descent ramp, back onto the surface 6, which is, for example, a hall floor.

[0042] The spinning can 4 can travel on the can plate 13, which is recessed in the base plate 7 and is connected to a drive and brake system 22 for rotating the can turntable around the vertical axis 21 and for braking the can plate 13. The drive and brake system 22 has a drive motor 23, for example an electric motor. In the Fig. In positions 1 to 6, the can tray 13 is in a loading rotation position, into which the drive and braking system 22 decelerates the can tray 13 in a controlled manner, so that when stationary, the can tray 13 is always aligned in the loading rotation position. Thus, after the rotation process, the spinning can 4 resumes the same direction of travel 41 as before the rotation and can simply continue straight ahead towards the exit ramp 3. If the textile machine 1 has only one of the ramp devices 2, 3, depending on the application, it is also possible for the can tray 13 to assume a loading rotation position and an unloading rotation position rotated 180 degrees about the vertical axis 21, so that the spinning can 4 can always leave the can tray 13 moving forwards. However, it is also fundamentally possible for the spinning can 4 to drive forwards onto the can tray 13 and then reverses off.

[0043] With regard to the Fig. Figure 2 shows that on one of the upper surfaces 24 of the spinning tray 13, facing the storage device 14, two parking stop elements 25, 26 are formed for the repeatable positioning of the spinning tray 4 during loading and for securing the spinning tray 4 in a defined loading position when rotating about the vertical axis 21 on the spinning tray 13. In the loading / rotating position, the parking stop elements 25, 26 are thus arranged at a right angle to the travel path 19. The parking stop elements 25, 26 therefore serve to center the respective drive wheel 9, 10 of the spinning tray 4 and to position it in the direction of travel 41. Fig. Figure 3 shows the spinning can 4 in the loading position, which denotes the relative position of the spinning can 4 to the can plate 13 and is maintained throughout the entire filling process. Furthermore, the upper surface of the plate 24 has recesses 27, 28 for receiving the free-running support wheels 11, 12 of the spinning can 4 in the loading position. The upper surface of the plate 24 is flush with the upper surface of the base plate 7. The parking stop elements 25, 26 and the recesses 27, 28 are formed as indentations in the can plate 13. In other words, at least one parking stop element 25, 26 and the optional recesses 27, 28 are set back from a plane defined by the upper surface of the plate 24.

[0044] Especially in Fig. Figure 4 shows that the parking stop elements 25, 26 are each designed as a transverse trough with a V-shaped profile. The V-shaped profile walls 29, 30 touch at a profile base that runs in a linear shape and defines a trough axis 31. The trough axes 31 of the two parking stop elements 25, 26 lie on a common straight line that extends parallel to a transverse axis 32 of the can plate 13. The transverse axis 32 runs parallel to the top surface 24 of the plate and perpendicular to the vertical axis 21. The two trough axes 31 are aligned perpendicular to a longitudinal axis 33 of the can plate 13, which, in the loading rotation position of the can plate 13, is aligned parallel to the travel path 19. The parking stop elements 25, 26 are axially spaced apart from each other along the transverse axis 32 in order to be able to accommodate the drive wheels 9, 10 of the spinning can 4 which are spaced apart from each other in the vehicle transverse axis.The design, in particular the distances of the parking stop elements 25, 26 and the passage recesses 27, 28 to each other, their sizes, geometry and number can be adapted to the spinning jugs 4 used in the spinning mill.

[0045] The passage recesses 27, 28 are designed to allow the free-running wheels 11, 12 to pass through without requiring centering or positioning of the wheels. Specifically, the passage recesses 27, 28 have a recess base 34 that is aligned parallel to the top surface 24 and set back from it. The recess bases 34 of the passage recesses 27, 28 and the recess axis 31 of the parking stop elements 25, 26 are at the same level or have the same distance from the top surface 24. Along the longitudinal axis 33, inclined ramp sections 35, 36 adjoin the recess base 34 on both sides; their extension along the longitudinal axis 33 may be shorter than that of the V-shaped profile walls 29, 30.The passage recesses 27, 28 are primarily designed to lower the mounted running wheels 11, 12 in the loading position to the height level of the running wheels 9, 10 mounted in the parking stop elements 25, 26.

[0046] To simplify exiting the parking stop elements 25, 26, the textile machine 1 can have a driven can feeder with a can pusher 37 that can move the spinning can 4 along the travel path 19. The can pusher 37 can push an empty spinning can 4 waiting in a waiting position 38 in front of the can plate 13 against a filled spinning can 4 standing on the can plate 13, in order to push the filled spinning can 4 along the travel path 19 out of the parking stop elements 25, 26 – at least a short distance – towards the exit ramp 3. As soon as the filled spinning can 4 is no longer above the RFID tag 42, it can again drive the drive wheels 9, 10 and follow the magnetic tape 17 towards the exit ramp 3. The spinning can 4, which is to be filled and comes from the waiting position 38, can independently move into the loading position, or into the parking stop elements 25, 26 and the passage recesses 27, 28.It stops automatically as soon as its reader detects the RFID tag 42. When the can pusher 37 has returned to its starting position, which is in the . Fig. As shown in 1, the next empty spinning can 4 coming via ramp 2 can move into waiting position 38.

[0047] In the Fig. Figure 4 shows the can plate 13 as an example with four recesses, namely two of the parking stop elements 25, 26 and two of the passage recesses 27, 28, in order to hold a four-wheeled spinning can 4 in the loading position. In the Fig. Figure 5 shows an alternative embodiment of the can plate 13, which has six recesses, namely two of the parking stop elements 25, 26 and four of the passage recesses 27, 28, 39, 40. The alternative can plate 13 can also serve to hold a four-wheeled spinning can 4 in the loading position, and is also suitable for a spinning can 4 with four, five or six wheels.

[0048] Both the front passage recesses 27, 39, located along the track 19 in the direction of travel 41 of the spinning can 4 in front of the rear passage recesses 28, 40, and the rear passage recesses 28, 40 are designed here as spatially separated and spaced passage recesses. However, it is also possible that the front passage recesses 27, 39 are connected to each other in the form of a passage channel. This increases the flexibility of the can plate 13, which can thus accommodate spinning cans 4 with different wheel spacings, particularly between the free-running wheels, without the need to replace the can plate 13. Similarly, the rear passage recesses 28, 40 can be connected to each other in a channel-like manner.

[0049] In the Fig. 6, Fig. Figure 7 shows the drive and brake system 22 in detail. Individual components, such as the base plate 7 and the can holder 13, have been omitted solely for the sake of clarity. Looking down at the drive and brake system 22 from above, it can be seen that the spinning can support device 20 has a holding device 43 to which the can holder 13 is rotatably attached about the vertical axis 21. The holding device 43, in turn, is fixed to a base body of the textile machine 1, for example, the base plate 7, and can, as shown here, be attached to a lower plate 44 that is set back from the base plate 7 and rigidly connected to it. A driven wheel 45 of a belt drive is arranged concentrically to the vertical axis 21 on the holding device 43 and is connected, in particular screwed, to the can holder 13. A drive wheel of the belt drive sits on a motor wool of the drive motor 23. Due to the [unclear] Fig. 6, Fig. In the selected view 7, the drive wheel is visually obscured by the drive motor 23. A belt 46 driven by the drive wheel drives the driven wheel 45, particularly in a working direction 47. Due to the ratio between the diameter of the drive wheel and the diameter of the driven wheel 45, the drive speed of the drive motor 23 is reduced.

[0050] To ensure that the can tray 13 always comes to a standstill in the loading rotation position, the drive and brake system 22 includes a rotation position sensor 48. The rotation position sensor 48, shown here by way of example, comprises two rotation position sensors 49, 50, which are fixed relative to the can tray 13 and can be attached to the lower plate 44 or the base plate 7. The rotation position sensors 49, 50 are configured to detect a position mark 51. The position mark 51 is, by way of example, designed as a cam that projects radially to the vertical axis 21 over a central outer circumference of the driven wheel 45. In the loading rotation position, which is in the Fig. As shown in Figure 6, the position mark 51 is located on the first rotary position sensor 49. The second rotary position sensor 50, arranged in the operating direction 47 in front of the first rotary position sensor 49, defines a braking point for the can tray 13. That is, when the second rotary position sensor 50 detects the position mark 51, the drive and braking system 22 brakes the can tray 13 and brings it to a standstill when the position mark 51 aligns with the first rotary position sensor 49. The can tray 13 is then in the loading rotary position. The braking of the can tray 13 can be achieved, for example, by reducing the drive speed of the drive motor 23. A distance 52 in the circumferential direction around the vertical axis 21 can be adjusted to set a braking angle 66 of the can tray 13.In its simplest form, a circumferentially curved slot 53 around the vertical axis 21 can be provided for this purpose, along which the second rotary position sensor 50 can be guided so that it can be moved when loosened and held in a fixed position when locked. In this way, the second rotary position sensor 50 can be adjusted, for example, within an angular range of up to 20 degrees. Alternatively, several holes, bores, etc., can be provided to allow the second rotary position sensor 50 to be positioned at different distances. If adjustability is not required, the second rotary position sensor 50 can also be permanently connected to the base plate 44 or the bottom plate 7, in particular by means of screws, rivets, adhesive, or the like.

[0051] Furthermore, the textile machine 1 has a control unit 54 which is configured to control the drive and brake system 22 in such a way that the can plate 13 for loading and unloading the spinning can 4 remains stationary or comes to a standstill in the loading rotation position.

[0052] For this purpose, the control unit 54 is signal-connected to the rotary position sensor 48 and the drive motor 23. Furthermore, the control unit 54 can be signal-connected to a (not shown) tape sensor, which can, for example, be configured to measure the tape length of the produced or deposited fiber tape.

[0053] In the Fig.Figure 9 shows an exemplary flowchart for an automated filling process on the textile machine 1 with the self-propelled spinning can 4. At start 55, the can plate 13 is in the loading rotation position. To prevent the can plate 13 from moving around the loading rotation position when stationary, the drive and braking system 22 can include a locking brake (not shown) that temporarily secures the can plate 13 in the loading rotation position, particularly for loading and unloading the spinning can 4.

[0054] In step 56, the self-propelled spinning can, following the magnetic strip 17, moves from the waiting position 38 onto the can platform 13 and rolls with its driven wheels 9, 10 into the parking stop elements 25, 26. The free-running support wheels 11, 12 of the empty spinning can 4 roll into the passage recesses 27, 28. The spinning can 4 is now in the loading position, positioned in the recesses 25, 26, 27, 28. The spinning can 4, or rather its drive wheels 9, 10, is aligned in the direction of travel 41. As an alternative to self-propulsion, or to assist in this, the can pusher 37 can be used to push the empty spinning can 4 towards the can platform 13 and, optionally, onto the platform 13 into the loading position.If a spinning can 4, especially one filled, is already on the can plate 13 at that time, it will be pushed out of the loading position and along the travel path 19 towards the departure ramp 3 by the empty spinning can 4, which is pushed from the waiting position 38 towards the can plate 13 or is self-propelled.

[0055] The spinning can 4 can, for example, report the assumption of the loading position to the control unit 54. For this purpose, the spinning can 4 can have an RFID tag reader that reads the RFID tag 42 and recognizes that the spinning can 4 is on the can plate 13, step 57. The locking brake, if present, is now released.

[0056] Subsequently, the textile machine 1 discharges the fiber strip via the discharge device 14 and the control unit 54 controls the drive and brake system 22 to increase the drive speed of the drive motor 23 to a predetermined working speed in order to drive the can plate 13 rotating in the working direction 47, step 58.

[0057] When the control unit 54 registers that a predetermined fill quantity has been reached or that a manual input to end the filling process has been made, the control unit 54 can initiate the braking process, step 59. For this purpose, the control unit 54 waits until the second rotary position sensor 50 detects that the position markers 51 have passed. The predetermined fill quantity can be registered, for example, by the belt sensor of the textile machine 1 measuring a predetermined belt length of laid or produced fiber belt.

[0058] As soon as the second rotation position sensor 50 detects the position marker 51, the control unit 54 recognizes that the braking point has been reached and reduces the drive speed of the drive motor 23. This decelerates the can tray 13 and the spinning can 4 positioned on the can tray 13 in the loading position (step 60). The can tray 13 is thus moved into the defined loading position at a reduced rotational speed compared to the specified operating speed.

[0059] As soon as the first rotation position sensor 49 detects the position mark 51, the drive speed of the drive motor 23 is reduced to 0 revolutions per minute to bring the can tray 13 to a standstill in the loading rotation position, step 61. The spinning can 4 is again precisely aligned in the direction of travel 41. The can tray 13 can now be locked in place by the locking brake.

[0060] When the control unit 54 registers or receives a notification of a spinning can 4 to be filled at waiting position 38 (step 62 "yes"), the next filling process is carried out in step 56. Waiting position 38 can, for example, be equipped with a sensor for can registration, or the spinning can 4 can report this to the control unit 54 upon reaching waiting position 38. For example, the guide arrangement 15 can have another RFID tag 65 containing address information assigned to waiting position 38 of the textile machine 1.

[0061] If no other spinning can 4 is at waiting position 38, step 62 “no”, then the filled spinning can 4, aligned in the direction of travel 41, can leave the can plate 13 under its own power, be pushed by the can pusher 37 or manually, step 63.

[0062] If there is no further spinning jug 4 to be filled at waiting position 38, the filling process is manually aborted by an operator of the textile machine 1, etc., the filling process ends, End 64. Reference sign 1 textile machine 2 ramp device 3 Ramp device 4 spinning cans 5 elevation difference 6 Subsurface 7 Base plate 8 Chassis 9. Wheel, especially rigid wheel 10 Wheel, especially rigid wheel 11. Wheel, especially training wheel 12. Wheel, especially training wheel 13 teapot plates 14 Storage device 15 Guide arrangement 16 magnetic tape 17 Magnetic tape 18 magnetic tape 19 Route 20 spinning can carrying device 21 Vertical axis 22 Drive and braking system 23 Drive motor 24 plate tops 25 Parking stop element 26 Parking stop element 27 Passage recess 28 Passage recess 29 Profile wall 30 profile wall 31 Trough axle 32 Transverse axis 33 Longitudinal axis 34 trough bottom 35 Inclined ramp section 36 Inclined ramp section 37 can sliders 38 waiting positions 39 Passage recess 40 Drive-through recess 41 Direction of travel 42 RFID tags 43 Holding device 44 Base plate 45 driven wheel 46 belts 47 Working direction 48 Rotation position sensors 49 Rotation position sensor 50 Rotation position sensor 51 Position marking 52 distance 53 Slotted hole 54 Control unit 55 Start Step 56 Step 57 Step 58 Step 59 60 steps Step 61 Step 62 Step 63 64 End 65 RFID tags 66 braking angle QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 102015110585 A1

[0002] EP 3331791 B1

[0003]

Claims

[1] Spinning can carrying device (20) for rotating a particularly self-propelled spinning can (4) under a depositing device (14) of a textile machine (1), wherein the spinning can carrying device (20) has a holding device (43) which can be fixed to a base body (7) of the textile machine (1), a can plate (13) which can be driven over by the spinning can (4) and which is rotatably fastened to the holding device (43) about a vertical axis (21), and a drive and braking system (22) for rotating the can plate (13) about the vertical axis (21) and braking the can plate (13), characterized by in that for the repeatable braking and holding of the can plate (13) in a defined loading rotational position, the drive and braking system (22) has a rotational position sensor system (48) which is configured to detect the defined loading rotational position of the can plate (13). [2] Spinning can carrying device (20) according to claim 1, characterized bythat the rotational position sensor system (48) has a rotational position sensor (49) held stationary relative to the can plate (13) and at least one position marking (51) arranged on the can plate (13). [3] Spinning can carrying device (20) according to claim 2, characterized by that the at least one position marking (51) is a cam or a magnetic marking or an optical marking. [4] Spinning can carrying device (20) according to claim 2 or 3, characterized by that the rotational position sensor (49) is arranged such that the rotational position sensor (49) is aligned with the at least one position marking (51) in the loading rotational position. [5] Spinning can carrying device (20) according to claim 4, characterized by that the rotational position sensor system (48) has, in a working direction of rotation (47) of the can plate (13), a further rotational position sensor (50) for defining a braking point of the can plate (13) in front of the one rotational position sensor (49). [6] Spinning can carrying device (20) according to claim 5, characterized by that a distance (52) in the circumferential direction around the vertical axis (21) between the one rotational position sensor (49) and the further rotational position sensor (50) is adjustable for setting a braking angle (66) of the can plate (13). [7] Spinning can carrying device (20) according to one of claims 1 to 6, characterized by that the can plate (13) has at least one parking stop element (25, 26) on its upper side (24) facing away from the holding device (43) for repeatable positioning of the spinning can (4) during loading and for securing the spinning can (4) during rotation about the vertical axis (21) in a defined loading position on the can plate (13). [8] Spinning can carrying device (20) according to claim 7, characterized by that the at least one parking stop element (25, 26) for receiving a running wheel, in particular a drive wheel (9, 10) of the spinning can (4) is designed as a recess. [9] Spinning can carrying device (20) according to claim 7 or 8, characterized by that a profile of the at least one parking stop element (25, 26) is V-shaped. [10] Spinning can carrying device (20) according to one of claims 7 to 9, characterized by that the can plate (13) has exactly two of the parking stop elements (25, 26). [11] Spinning can carrying device (20) according to one of claims 7 to 10, characterized by that the can plate (13) has passage troughs (27, 28; 39, 40) on the plate upper side (24) for receiving further, in particular free-running, wheels (11, 12) of the spinning can (4). [12] Textile machine (1) with a sliver can carrying device (20) and a control unit (54) configured to control the sliver can carrying device (20), characterized by that the spinning can carrying device (20) is designed according to one of claims 1 to 11. [13] Textile machine (1) according to claim 12, characterized byin that the textile machine (1) has a base plate (7) over which the spinning can (4) can travel and which defines a travel path (19) for the spinning can (4), into which base plate the can plate (13) is embedded, wherein the control unit (54) is configured to control the drive and braking system (22) in such a way that the can plate (13) for loading and unloading the spinning can (4) stands still or comes to a standstill in the at least one loading rotational position, wherein the at least one parking stop element (25, 26) is arranged at a right angle to the travel path (19) in the loading rotational position. [14] Textile machine (1) according to claim 13, characterized by that a can pusher (37) is provided for pushing the spinning can (4) or several of the spinning cans (4) along the travel path (19). [15] Method for filling a particularly self-propelled spinning can (4) on a textile machine (1) according to one of claims 12 to 14, wherein the method comprises the following steps: - Holding (55) the can plate (13) in at least one loading rotation position; - loading (56) the spinning can (4) onto the can plate (13), in particular wherein the spinning can (4) is positioned and secured on the can plate (13) in the loading position by means of the at least one parking stop element (25, 26); - filling (58) the spinning can (4) with fiber sliver delivered by the textile machine (1), while the drive and braking system (22) drives the can plate (13) to rotate about the vertical axis (21); - initiating (59) a braking process of the can plate (13) by the control unit (54), - braking (60) of the can plate (13); - holding (61) the can plate (13) in the at least one loading rotational position when the rotational position sensor detects the at least one loading rotational position; and - Unloading (56; 63) the spinning can (4) from the can plate (13).

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