EP4227247A1 - Winding drum for a winding machine and winding machine - Google Patents

Abstract

The present invention relates to a slotted drum for a dishwasher for traversing a yarn (13), with a drum body (1) consisting of a first half (2) and a second half (3) and with a drum shaft (10) with a drum axis (11 ), wherein the drum body (1) is held non-rotatably on the drum shaft (10) and has a yarn guide slot (12) running around the drum body (1) and formed by the adjacent halves (2, 3) of the drum body (1). . Each half (2, 3) consists of a side plate (4, 5) and a cylindrical sleeve (6, 7) and a hub (8, 9) for mounting on the drum shaft (10). At least the first half (2) of the drum body (1) is held on the drum shaft (10) so that it can be displaced in the direction of the drum axis (11) and an actuator (19) is used to move the at least first half (2) of the drum body (1). provided on the drum shaft (10) in the direction of the drum axis (11), wherein in addition to the movement of the at least first half (2) of the drum body (1) in the direction of the drum axis (11), a simultaneous rotation (22) of the at least first half (2nd ) is provided opposite the second half (3) around the drum axis (11).

Description

The present invention relates to a slotted drum for a winding machine for traversing a yarn, having a drum body consisting of a first half and a second half and having a drum shaft with a drum axis, the drum body being held on the drum shaft in a rotationally fixed manner and having a yarn guide slot running around the drum body , which is formed by the adjacent halves of the drum body. Each half of the spool body is formed from a side shield and a cylindrical shell and hub for mounting on the spool shaft.

Slotted drums of this type are used in winding machines for traversing a yarn in the production of sewing thread bobbins. The yarn is reciprocated with a traverse along a longitudinal axis of a sewing thread bobbin tube during winding, thereby forming various windings in structure and shape. The sewing thread bobbin tube is driven directly by a motor, which rotates at least one sewing thread bobbin holder or a bobbin mandrel, or indirectly by a friction roller arranged parallel to the sewing thread bobbin tube. The friction roller also serves as a support roller. The friction roller can be designed as a slotted drum at the same time. Due to the nature and properties of the sewing thread, no additional thread guide is necessary and the thread is fed directly through the thread guide slot in the slotted drum and by rotation of the slotted drum such that the thread is moved back and forth. The thread is clamped between the slotted drum and the sewing thread bobbin or the thread already on the sewing thread bobbin and thereby deposited on the sewing thread bobbin.

When starting a new winding process, the yarn has to be inserted manually into the yarn guide slot of the slotted drum, which requires special skill on the part of the operator. If the color of the yarn also changes from one winding process to the next, it may be necessary to clean the yarn guide slot or the drum body in order to prevent color transfer to the new thread to be spooled or dirt getting into the sewing thread spool. Fine abrasion of the yarn during traversal may result in discoloration of the yarn guide slit depending on the properties of the yarn, or the abrasion may accumulate inside the drum body.

Generic winding machines with slit drums are known from the prior art, for example, discloses CN 209 635 606 U a slit drum, which is formed from four shells forming the guide slit, which are held on two side shields. The side shields are in turn held on a shaft in a rotationally fixed manner. The construction enables cleaning or replacement of the yarn guide slot forming members by disassembling the components forming the yarn guide slot. Next revealed the EP 2 170 750 A1 a slotted drum with a one-sided bearing of the drum shaft, so that the slotted drum can be removed from the drum shaft on one side. The CN 209 427 865 U discloses a slit drum in a lightweight construction to reduce its own weight in order to achieve energy-saving operation at high speeds compared to steel structures.

A disadvantage of the known designs of slotted drums is that cleaning is time-consuming and requires dismantling of the slotted drum or at least parts of it. In addition, complicated movements of the yarn are also required during a threading process due to the small width of the yarn guide slit.

Other winding machines with slit drums are from the writings JP2003112852A , GB814293A , US3532279A and CH507147A known.

It is therefore the object of the present invention to propose a device for traversing a yarn which enables simple cleaning and threading without having to forego high quality and uniformity of the bobbins.

The object is achieved by a slit drum for a winding machine for traversing a yarn with a first half and a second half existing drum body and with a drum shaft with a drum axis, the drum body being held in a rotationally fixed manner on the drum shaft and having a yarn guide slot running around the drum body, which is formed by the adjoining halves of the drum body. Each of the two halves is made up of a side shield and a cylindrical shell and hub for mounting on the drum shaft. At least the first half of the drum body is held on the drum shaft so that it can be displaced in the direction of the drum axis, and an actuator is provided for moving the at least first half of the drum body on the drum shaft in the direction of the drum axis. In addition to the movement of the at least first half of the drum body in the direction of the drum axis, a simultaneous rotation of the at least first half relative to the second half about the drum axis is provided. Since the yarn guide slot runs obliquely to the drum axis over the shell of the drum body, a rotation of the first halves of the drum body around the drum axis in addition to the linear movement results in a larger opening of the width of the yarn guide slot with an already small linear displacement. As a result, the linear movement in the direction of the drum axis and also the actuator can be designed for a smaller displacement. As a result, sufficiently large openings of the width of the yarn guide slot can be achieved even with relatively narrow winding stations, or the opening of the yarn guide slots characteristic of the present invention does not lead to any overcritical widening of the winding stations. Movements in the direction of the winding axis can also be minimized in this way and thus possible interference with neighboring winding units (which can be in the winding operation) due to vibrations can be minimized. The rotation can be generated by an appropriate arrangement of the actuator for the linear movement or an appropriate design of the first hub of the drum body. For example, the actuator for moving the first half can engage in the first hub via a pin in such a way that the pin and thus the first half of the drum body simultaneously executes an axial and a rotary movement through a guide groove in the first hub, with the actuator only is moved in a linear axis direction. In an alternative embodiment, the rotation is provided by a drive that is independent of the actuator. In this way, the linear movement and the rotation can be adjusted and performed independently of each other so that the most favorable movement for the necessary work can be carried out. Each of the two halves of the drum body is constructed in its construction, for example, from a side plate and a cylindrically shaped sleeve which is detachably fastened to the side plate. The respective side plate is held non-rotatably on the drum shaft by a hub formed on the side plate. In an alternative construction, the cylindrical shell, side shield and hub are made in one piece. An edge of the cylindrical sleeve facing away from the side plate is provided in its shape in each case to correspond to the yarn guide slot. When the two halves are assembled on the drum shaft, the edges of the sleeves facing away from the respective side plate face each other and are spaced apart from one another in such a way that the yarn guide slot is formed between the cylindrical sleeves. Yarn guide slots usually have a width of 0.2 mm to 2.0 mm, depending on the yarn to be processed. The two halves of the drum body are therefore placed on the drum shaft and connected to it in a rotationally fixed manner at a distance which corresponds to the width of the yarn guide slot. The attachment to the drum shaft, the side shield and the shell can be manufactured in individual parts and bolted together or, alternatively, can be provided in a one-piece construction. Advantageously, the cover is detachably connected to the side plate, so that the cover can be easily replaced, for example if the shape of the slot needs to be changed. The cover is also subject to wear due to the yarn sliding over its surface and must be replaced after a certain period of operation. The drum shaft and thus the drum body are rotated by a drive. Due to the rotation of the drum shaft and thus of the drum body, a traversing movement of the yarn guided in the yarn guide slot is achieved due to the arrangement of the yarn guide slot.

According to the invention, at least the first half of the drum body is attached to the drum shaft in such a way that it can be displaced in the direction of the drum axis. The first half of the drum body is connected to an actuator for movement in the direction of the drum axis. The actuator can be connected to the first side plate or between the first side plate and the drum shaft Holder of the first side plate to be connected to the drum shaft arranged first hub.

Before a yarn is threaded into the yarn guide slot or when the drum body is about to be cleaned, the actuator can move the first half of the drum body on the drum axis in such a way that the two halves move apart and the yarn guide slot increases in width. In a further development, the yarn guide slot can be enlarged in two stages. In a first stage, the enlargement of the width of the yarn guide slot is selected in such a way that threading is simplified and can be carried out with one hand or by a robot. In a second stage, the two halves are moved apart so far that there is good accessibility for maintenance and cleaning of the drum body.

In an alternative embodiment, the drum shaft has a guide groove and a guide pin is provided on the first hub, which engages in the guide groove. With this construction, the linear movement in the direction of the drum axis and the rotation of the first half of the drum body can be provided by a single actuator. The guide groove can be provided directly in the drum shaft or can be arranged in a hollow shaft mounted on the drum shaft. When the actuator that is operatively connected to the first hub is actuated, the first hub is displaced in the direction of the drum axis and rotated about the drum axis by the action of the guide pin in the guide groove, depending on the torsion of the guide groove. In order to enable the width of the yarn guide slot to be adjusted, the guide groove can have a corresponding first part pointing in the direction of the drum axis.

The first hub is preferably connected to the actuator. By connecting the actuator to the first hub, the movement of the first half of the drum body is converted by the actuator into a relative movement between the first hub and the drum shaft or, if there is a hollow shaft, between the first hub and the hollow shaft.

A pneumatic cylinder or an electric drive is preferably provided as the actuator. Due to the short displacement paths, the electric drive can be designed as a simple electromagnetic linear drive. Alternatively, however, it is also possible to use an inexpensive stepper motor in combination with a toothed rack to convert the rotary movement of the motor into a linear movement. An embodiment is also possible in which the actuator is designed as a lever to be actuated manually. In this case, the drum body can be opened by a simple manual intervention by the operator and can also be carried out independently of a power supply.

The actuator is advantageously connected to the first hub via a driver, the driver being held rotatably on the first hub. This makes it possible to maintain the connection between the first hub or driver and the actuator even during a winding operation. For example, a ring held on the first hub by a bearing can be provided, which ring is partially surrounded by a fork-shaped connecting part of the actuator. With such a construction, a simple rotary movement of the first hub and thus of the first half of the drum body is also possible during a linear movement of the driver. Further design options result from designing the driver as a fork or eyelet.

A connection that can be coupled between the drum shaft and the at least first half of the drum body is preferably provided. This makes it possible to move the first half of the drum body independently of the drum shaft after opening the clutch. This is particularly advantageous when performing a rotating movement of the first half, since this can be performed when the drum shaft is stationary.

It is advantageous if the detachable connection is located between the first hub of the first half of the drum body and the drum shaft. The first half of the drum body is mounted in a stationary manner on the first hub, through which the drum shaft is guided. This allows the first half of the drum body along with the first hub to be moved on the drum shaft. If a coupling is provided between the first hub and the drum shaft, rotation of the first hub about the drum axis independently of the drum shaft is only possible after the connection has been released. Such a clutch can be of the disengageable type, in which the first hub can be mechanically decoupled from the drum shaft. Alternatively, however, a non-disengageable coupling is also possible, in which, for example, an elevation, for example a pin, is attached to the drum shaft and engages in a corresponding depression in the first hub. Such a design means that when the first hub moves linearly in the direction of the drum axis, the clutch is automatically released and separate disengagement of the clutch can be dispensed with. In such a case, only the axial position of the first hub needs to be locked for winding operation.

A rotation of the drum shaft or the drum body about the drum axis is preferably locked when the halves of the drum body are moved apart. Such locking can take place mechanically or electronically. In the case of a mechanical lock, this can be coupled to the same actuator by which the movement of one half of the drum body is carried out.

The movement of the at least first half of the drum body preferably provides for the formation of a distance of at least 10 mm between the two halves of the drum body. An opening of 10 mm is sufficient to facilitate a threading process. A movement of at least 20 mm is particularly preferred. If a distance of 20 mm or more is formed, the yarn can be easily threaded with just one hand. A simple manual cleaning can also be carried out at this opening. It is also advantageous if the at least first half is rotated about the drum axis when the drum body is opened in a range of 5 to 40 angular degrees. With an opening in the direction of the drum axis and an additional rotation of the two halves of the drum against each other, optimal access can be created with a short axial movement. Due to the small axial displacement of one half, a compact construction of the necessary for the movement Device can be achieved. A distance of 50 mm and a rotation of 30 angular degrees have proven to be particularly preferable movement variables. As a result, such a large opening of the two halves can be achieved that simple manual cleaning of the slotted drum is possible. A sufficiently large opening is also achieved in this way, independently of the shape of the slit drum or of the yarn guide slit. The device for opening the slit drum does not have to be exchanged or changed when the two halves are exchanged due to a change in the winding characteristics due to a different course of the yarn guide slit.

Furthermore, a winding machine with at least one slotted drum according to the previous description is proposed, the winding machine having a protective cover for the slotted drum and when the protective cover is opened, the halves of the slotted drum are automatically moved apart. The advantageous automatic system can be of a mechanical or electrical design. For example, the position of the protective cover can be reported to the controller by a corresponding sensor. As soon as this sensor detects an opening of the protective cover, the halves of the drum body are moved apart. As soon as the protective cover leaves the open position again, the halves of the reel body are moved together again. Alternatively, a mechanical automatic would mean that the halves of the drum body are moved apart through the door opening via a corresponding device. In the context of the invention, the protective cover represents the actuator in this case, which moves the first half of the drum body. For example, the protective cover can be connected to the hub via a lever. The opening of the protective cover itself can also be provided mechanically by an operator or automatically via a corresponding pneumatic, electric or electropneumatic drive.

Figur 1

eine schematische Ansicht einer Schlitztrommel nach dem Stand der Technik;

Figur 2a

eine schematische Ansicht einer ersten Ausführungsform einer Schlitztrommel nach der Erfindung im geschlossenen Zustand;

Figur 2b

eine schematische Ansicht einer ersten Ausführungsform einer Schlitztrommel nach der Erfindung im geöffneten Zustand;

Figur 3

eine schematische Darstellung eines Längsschnittes einer zweiten Ausführungsform einer Schlitztrommel nach der Erfindung im geöffneten Zustand;

Figur 4

eine schematische Darstellung einer Ausführungsform eines Aktors zur Öffnung der Schlitztrommel und

Figur 5

eine schematische Darstellung einer Seitenansicht einer Schlitztrommel nach der Erfindung.

Further advantages of the invention are described in the following exemplary embodiment. Show it:

figure 1

a schematic view of a slotted drum according to the prior art;

Figure 2a

a schematic view of a first embodiment of a slit drum according to the invention in the closed state;

Figure 2b

a schematic view of a first embodiment of a slit drum according to the invention in the open state;

figure 3

a schematic representation of a longitudinal section of a second embodiment of a slotted drum according to the invention in the open state;

figure 4

a schematic representation of an embodiment of an actuator for opening the slit drum and

figure 5

a schematic representation of a side view of a slit drum according to the invention.

figure 1 Figure 12 shows a schematic plan view of an embodiment of a slotted drum according to the prior art. The slotted drum consists of a drum body 1, which is composed of a first half 2 and a second half 3. The first half 2 has a first side shield 4 and a first shell 6 and a first hub 8 . The first side shield 4 is connected to the first hub 8 and the first shell 6, whereby a one-piece construction can also be provided, in particular the first hub 8 and the first side shield 4 can be provided as a one-piece component. The second side shield 5 is connected to the second hub 9 and the second shell 7, although in the case of the second half 3 a one-piece construction can also be provided. The respective halves 2 and 3 are held non-rotatably with their hubs 8 and 9 on a drum shaft 10 with a drum axis 11 . The drum shaft 10 is rotatably supported in a machine frame 18 . The drum shaft 10 is set in rotation 17 about the drum axis 11 by a drive 15 shown schematically. The adjoining edges of the first casing 6 and the second casing 7 are spaced apart in such a way that a yarn guide slot 12 is formed between the edges. A yarn 13 is guided through the yarn guide slot 12 in such a way that a rotation 17 of the drum body 1 about the drum axis 11 results in a traversing movement 14 for the yarn 13 . The yarn 13 striking the yarn guide slot 12 in the yarn conveying direction 33 is deflected in the direction of the drum axis 11 by the rotation 17 of the drum body 1 and the course of the yarn guide slot 12 .

Figure 2a shows a schematic view of a first embodiment of a slit drum according to the invention in the closed state. The closed state means that position of the first half 2 and the second half 3 of the drum body 1 which results in a yarn guide slot 12 between the halves 2 and 3 and enables a traversing movement 14 of the yarn 13 when the drum body 1 rotates. The slotted drum 1 shown consists of a first half 2 and a second half 3, each of the halves 2 and 3 having a side plate 4 or 5, a hub 8 or 9 and a sleeve 6 or 7, respectively. The yarn guide slot 12 through which the yarn 13 is guided is formed by the adjoining edges of the first casing 2 and the second casing 3 . The drum body 1 is held non-rotatably on the drum shaft 10 and the drum shaft 10 is rotatably mounted in the machine frame 18 . The drum shaft 10 is set in rotation about the drum axis 11 by a drive 15 and the traversing movement 14 for the yarn 13 is thus triggered. The hub 8 of the first half 2 of the drum body 1 is connected to an actuator 19 . The first half 2 of the drum body 1 is set in a linear movement 20 in the direction of the drum axis 11 by the actuator 19 . This results in a change in the distance between the first half 2 and the second half 3 of the drum body 1.

In the episode shows Figure 2b the slit drum after the Figure 2a accordingly in the open state. The slotted drum 1 shown consists of a first half 2 and a second half 3, each of the halves 2 and 3 having a side plate 4 or 5, a hub 8 or 9 and a sleeve 6 or 7, respectively. The actuator 19 moved the first half 2 of the drum body 1 in the direction of the drum axis 11 far enough away from the second half 3 of the drum body 1 that a distance 21 was created. Due to the distance 21 between the first cover 6 and the second cover 7, in the closed state the yarn guide slot 12 (see Figure 2a ) forming, edges of the cases 6 and 7 are cleaned. A simple threading of the yarn 13 between the two drum halves 2 and 3 is also possible. The distance 21 is determined by the linear movement 20 of the actuator 19 . Accordingly, the drum body 1 can be opened at a predetermined distance 21 and also to a specific yarn guide slot 12 adapted to the respective yarn (see Fig Figure 2a ) getting closed.

figure 3 shows a schematic representation of a longitudinal section of a second embodiment of a slotted drum according to the invention in the open state. The drum shaft 10 is held in the machine frame 18 so that it can rotate about the drum axis 11 . A drive wheel 16 is provided on the drum shaft 10 . The drum shaft 10 can be rotated via the drive wheel 16 by a drive (not shown). Depending on the design of the drive, the drive wheel 16 can be designed as a chain, belt or gear wheel. The second half 3 consists of a second side plate 5, a second shell 7 and a second hub 9 and is connected to the drum shaft by the second hub 9 in a rotationally fixed and stationary manner. The first half 2 has a first side shield 4, a first shell 6 and a first hub 8. FIG. In contrast to the second half 3, the first hub 8 is held by the drum shaft 10, but is not connected to it in a stationary or non-rotatable manner.

In the drum shaft 10 there is a bolt 27 which is arranged transversely to the drum axis 11 and which penetrates the drum shaft 10 and which serves as a coupling half for a non-rotatable connection between the first half 2 and the drum shaft 10 . A recess 26 is formed on the first hub 8 as a counterpart. If the first half 2 is pushed by the actuator 19 in the direction of the drum axis 11 against the second half 3 on the drum shaft 10, the bolt 27 engages in the recess 26 and a non-rotatable connection is created between the drum shaft 10 and the first hub 8 and thus the first half 2. Through the interaction of bolt 27 and recess 26, a detachable connection between the drum shaft 10 and the first half 2 of the drum body 1 is created. On the first hub 8, a driver 25 is held in a rotatable and stationary manner. The driver 25 is surrounded by a fork 32 partially. The fork 32 is attached to the actuator 19 or is moved by the actuator 19 in the direction of the drum axis 11 . This movement of the fork 32 pushes the first hub 8 back and forth on the drum shaft 10 in the direction of the drum axis 11 with the linear movement 20 , resulting in a distance 21 between the first half 2 and the second half 3 .

In addition, a guide groove 23 is provided in the drum shaft 10 , the guide groove 23 being applied with a gradient in the direction of the drum axis 11 . A guide pin 24 directed against the drum shaft 10 is attached to the first hub 8 . The guide pin 24 engages in the guide groove 23 . This causes the hub 8 to follow the course of the guide groove 23 when the guide pin 24 executes a linear movement 20 and, in addition to the linear movement 20 in the direction of the drum axis 11, undergoes a rotation 22 about the drum axis 11. Due to the course of the yarn guide slot or the dividing line between the first half 2 and the second half 3, a linear movement 20 by the distance 21 results in a significantly larger opening than with a linear movement 20 due to the additional rotation 22 of the two halves 2 and 3 relative to one another without twisting 22.

figure 4 shows a schematic representation of an embodiment of an actuator for opening the slit drum as it is, for example, in an embodiment according to FIG figure 3 is applied. figure 4 shows the first half 2 with the first cover 6, the first side plate 4 and the first hub 8. The first hub 8 holds the first half 2 on the drum shaft 10. FIG. The drum shaft 10 is held in the machine frame 18 so that it can rotate about its drum axis 11 . On the first hub 8, a driver 25 is rotatably mounted. A fork 32 which in turn is fastened to an electric drive 31 partially engages over the driver 25 . The actuator 19 shown in the embodiment shown consists of the fork 32, the electric drive 31 and a gear 28. The gear 28 is attached to the electric drive 31 and is driven by it. A toothed rack 29 is also provided, which is fixed in place on the machine frame 18 . If the electric drive 31 is set in motion, the gear wheel 28 rotates, for example, in a direction of rotation indicated by the arrow about an actuator axis 30. As a result of the gear wheel 28 engaging in the toothed rack 29, the actuator 19, in the illustrated embodiment the electric drive 31, the fork 32 and the gear wheel 29, are moved away from the machine frame 18 by a linear movement 20 in the direction of the drum axis 11. The actuator axis 30 moves on the drum shaft 10 in the direction of the drum axis 11. During this shift, the fork 32 of the Driver 25 and thus also the first half 2 is moved by the actuator 19 in the direction of the drum axis 11.

A guide groove 23 in which a guide pin 24 engages is additionally provided in a surface of the drum shaft 10 . The guide pin 24 is connected to the first hub 8 . During a linear movement 20 by the first hub 8 , the first hub 8 is moved about the drum axis 11 with a rotation 22 by the guide pin 24 running along in the guide groove 23 . Since the driver 25 is rotatably mounted on the first hub 8, the rotation 22 of the first hub 8 has no influence on the movement of the actuator 19, which executes a purely linear movement 20.

figure 5 shows a schematic representation of a side view of a slotted drum, the yarn 13 being shown with its yarn conveying direction 33 for a better understanding of the side view. Shown is the first half 2 of the drum body, which is formed from the first side plate 4 and the first shell 6 and the first hub 8 . The first half 2 is held on the drum shaft 10 . The drum shaft 10 is rotatably mounted in the machine frame 18 on the drum axis 11 . The drum shaft 10 is set in rotation 17 by a drive (not shown) and consequently rotates at high speed. A protective cover 34 is provided on the operating side 36 in order to rule out any danger to the operating personnel. The protective cover 34 is held on the machine frame 18 by a hinge 35 . With a simple monitoring of the position of the protective cover 34, various functions can be triggered or correspondingly locked by a control, not shown. For example, operation of the slotted drum with the protective cover 34 open can be locked or a linear movement of the first half 2, as in Figures 2a, 2b shown to be triggered.

The present invention is not limited to the illustrated and described embodiments. Modifications within the scope of the patent claims are just as possible as a combination of the features, even if they are shown and described in different exemplary embodiments. <b>Reference List</b> 1 drum body 21 Distance 2 First half 22 twist 3 Second half 23 guide groove 4 First side sign 24 guide pin 5 Second side shield 25 driver 6 First shell 26 deepening 7 second shell 27 bolt 8th First hub 28 gear 9 Second hub 29 rack 10 drum shaft 30 actuator axis 11 drum axle 31 electric drive 12 twine guide slot 32 Fork 13 yarn 33 yarn feed direction 14 oscillating movement 34 protective cover 15 Drum shaft drive 35 hinge 16 drive wheel 36 operating side 17 rotation of the drum shaft 18 machine frame 19 actuator 20 linear motion

Claims (11)

Slotted drum for a winding machine for traversing a yarn (13), with a drum body (1) consisting of a first half (2) and a second half (3) and with a drum shaft (10) with a drum axis (11), the drum body (1) is held non-rotatably on the drum shaft (10) and has a yarn guide slot (12) running around the drum body (1), which is formed by the adjoining halves (2, 3) of the drum body (1) and each half ( 2, 3) is formed from a side plate (4, 5) and a cylindrical sleeve (6, 7) and a hub (8, 9) for mounting on the drum shaft (10), characterized in that at least the first half (2nd ) of the drum body (1) is held on the drum shaft (10) so that it can be displaced in the direction of the drum axis (11) and an actuator (19) for moving the at least first half (2) of the drum body (1) on the drum shaft (10) in the direction of the drum axis (11), wherein in addition to the movement of the at least first half (2) of the drum body (1) in the direction of the drum axis (11), a simultaneous rotation (22) of the at least first half (2) relative to the second half (3 ) is provided around the drum axis (11). Slotted drum according to Claim 1, characterized in that the rotation (22) is provided by a rotary drive which is independent of the actuator (19). Slotted drum according to at least one of the preceding claims, characterized in that the drum shaft (10) has a guide groove (23) and a guide pin (24) which engages in the guide groove (23) is provided on the first hub (8). Slotted drum according to at least one of the preceding claims, characterized in that the first hub (8) is connected to the actuator (19). Slotted drum according to at least one of the preceding claims, characterized in that the actuator (19) is a pneumatic cylinder or an electric drive. Slotted drum according to at least one of the preceding claims, characterized in that the actuator (19) is connected to the first hub (8) via a driver (25), the driver (25) being held rotatably on the first hub (8). . Slotted drum according to at least one of the preceding claims, characterized in that a detachable connection (26, 27) is provided between the drum shaft (10) and the at least first half (2) of the drum body (1). Slotted drum according to Claim 7, characterized in that the detachable connection (26) is arranged between the drum shaft (10) and the first hub (8) of the first half (2) of the drum body (1). Slotted drum according to at least one of the preceding claims, characterized in that rotation (17) of the drum shaft (10) or of the drum body (1) about the drum axis (11) is locked when the halves (2, 3) of the drum body (1) are moved apart. Slotted drum according to at least one of the preceding claims, characterized in that the movement of at least the first half (2) of the drum body (1) creates a distance (21) of at least 10 mm between the two halves (2, 3) of the drum body ( 1) is provided. Winding machine with at least one slotted drum according to at least one of the preceding claims and with a protective cover (34) of the slotted drum, characterized in that when the protective cover (34) is opened automatic moving apart of the halves (2, 3) of the drum body (1) is provided.

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