Winding device and method for producing a winding of strand-shaped winding material on a carrier

Abstract

The invention relates to a winding device and a method for producing a winding of strand-shaped winding material on a carrier. The winding device is formed with a winding nozzle (1) designed to feed strand-shaped winding material for winding on a non-circular carrier, and in the case of which the strand-shaped winding material exits via a nozzle opening (8) for feeding, a preforming element (2) associated with the winding nozzle (1) and designed to apply an elastic to plastic preloading to the strand-shaped winding material exiting from the nozzle opening (8) before applying the strand-shaped winding material to the carrier, and for this purpose to exert a transverse force on the strand-shaped winding material transversely to the longitudinal extent of the strand-shaped winding material, and a displacement system (3) designed to move the winding nozzle (1) and the preforming element (2) together relative to the carrier in order to wind the strand-shaped winding material. The displacement system (3) is also designed to pivot the preforming element (2) about the nozzle opening (8), thereby changing the relative position of the preforming element (2) relative to the winding nozzle (1).

Description

Technical Field

[0001] The present invention relates to a winding apparatus and method for producing stranded winding material on a carrier. Background Technology

[0002] For different applications, this technique is used to wind stranded winding materials (especially wire materials, such as, for example, copper wire) onto a carrier, which can have various cross-sectional shapes for its portions. For example, windings for motor coils are produced in this way.

[0003] A winding method is known from document EP 2 309 626 B1, in which strands of winding material fed from a feed device are wound onto a carrier having a non-circular cross-section by relative movement of the winding material and the carrier. Here, before the winding material is deposited on the surface to be wound, a force transverse to the longitudinal direction of the winding material is applied to the winding material. The transverse force on the winding material applies an elastic to plastic preload to the winding material, which affects the behavior of the winding material upon impact with the carrier and during progressive winding, such that the tendency of the laid wire to form bulges between bending points is fully or sufficiently compensated. Here, the transverse force is periodically activated by engaging at least one pre-forming element movable relative to the feed device with the strands of winding material.

[0004] Document EP 3 754 822 A1 relates to a winding apparatus and method for producing a stranded winding material on a carrier. A winding nozzle for feeding the stranded winding material onto the carrier is dispensed with a preforming element through which a lateral force is applied to the stranded winding material transversely to its longitudinal direction before the material is placed on the surface of the carrier. The preforming element is pivotable together with the winding nozzle (and thus maintains the relative position of the openings of the preforming element and the winding nozzle) about the longitudinal axis of the winding nozzle. The pivoting of the pin-shaped preforming element allows adjustment of the applied lateral force, which, in known methods, is continuously maintained along the circumferential surface of the carrier. Summary of the Invention

[0005] The object of the present invention is to provide a winding apparatus and method for producing stranded winding material on a carrier, which enables improved contour-compliant deposition of stranded winding material on a non-circular carrier, thereby particularly reducing or substantially completely avoiding undesirable protrusions of the stranded winding material deposited on the carrier.

[0006] To achieve this objective, a winding apparatus and method for producing stranded winding material on a carrier are provided according to independent claims 1 and 15. The embodiments are the subject of the dependent claims.

[0007] According to one aspect, a winding apparatus is provided for producing a winding of stranded winding material on a carrier, wherein the winding apparatus comprises: a winding nozzle configured to feed stranded winding material for winding onto a non-circular carrier, wherein the stranded winding material exits through a nozzle opening for feeding; a preforming element assigned to the winding nozzle and configured to apply an elastic to plastic preload to the stranded winding material exiting the nozzle opening before applying the stranded winding material to the carrier, and for this purpose, applying a lateral force transverse to the longitudinal extent of the stranded winding material; and a shifting system configured to move the winding nozzle and the preforming element together relative to the carrier for winding the stranded winding material. The shifting system is further configured to pivot the preforming element about the nozzle opening, thereby changing the relative position of the preforming element with respect to the winding nozzle.

[0008] According to another aspect, a method is provided for producing a winding of stranded winding material on a carrier, wherein the method includes the steps of: winding the stranded winding material onto a non-circular carrier by means of a winding nozzle, in which the stranded winding material exits through a nozzle opening; applying an elastic to plastic preload to the stranded winding material exiting the nozzle opening by means of a preforming element assigned to the winding nozzle, wherein a lateral force is thereby applied to the stranded winding material transversely to its longitudinal extent; and moving the winding nozzle and the preforming element together relative to the carrier by means of a shifting system for winding the stranded winding material onto the carrier. The shifting system also pivots the preforming element about the nozzle opening to change the relative position of the preforming element with respect to the winding nozzle.

[0009] The provided pivoting capability of the preformed element around the nozzle opening and thus particularly around the longitudinal direction of the winding nozzle allows the winding nozzle and the preformed element to be displaced relative to each other, enabling efficient setting of the relative position of the preformed element with respect to the winding nozzle, and thus making it possible, in operation, to adapt the application-related lateral force applied by the preformed element to the stranded winding material leaving the nozzle opening.

[0010] The preformed element may have, for example, a pin or rod shape, at least in the region on which the stranded winding material is carried.

[0011] When the stranded winding material is wound onto the carrier, one side of the carrier moves relative to the other side, along with the winding nozzle and preforming element, specifically causing the preforming element and winding nozzle to move together along the surface contour of the carrier. By means of this relative movement, the stranded winding material is deposited on the surface of the carrier, one winding at a time, one winding layer at a time. The carrier on which the stranded winding material is applied can have an elliptical or polygonal cross-section, such as a rectangular shape.

[0012] In one example, the winding device can be configured to produce windings for motor coils. In this or other embodiments, the strand winding material can be a wire material having, for example, a circular or angled cross-section, such as copper wire.

[0013] The preformed element is capable of pivoting around the nozzle opening within an angular range of up to 360 degrees. In this way, the pivoting motion provides the largest possible range of pivoting for the relative displacement of the preformed element and the nozzle opening or the winding nozzle.

[0014] The displacement system can also be configured to change the pivot position of the preformed element during the winding of the stranded winding material onto the carrier, thereby changing the relative position of the preformed element with respect to the winding nozzle. In this embodiment, the relative position between the preformed element and the winding nozzle can be changed during the winding of the stranded winding material onto the carrier, and the relative movement that occurs between the carrier on one side and the preformed element and winding nozzle on the other side can be changed, particularly for setting the lateral force applied to the stranded winding material by means of the preformed element. This can be done simultaneously with the movement of the carrier on one side relative to each other and the preformed element and winding nozzle on the other side.

[0015] The displacement system can be configured such that during the winding of the stranded winding material: (i) during the application of the stranded winding material in a first region of the carrier, the preforming element is positioned in a first pivot position relative to the winding nozzle, in which the preforming element applies a first lateral force to the stranded winding material; and (ii) during the application of the stranded winding material in a second region of the carrier different from the first region, the preforming element is displaced by pivoting around the nozzle opening to a second pivot position relative to the winding nozzle different from the first pivot position, wherein the preforming element applies a second lateral force different from the first lateral force to the stranded winding material or no lateral force at all in the second pivot position. In the first and second pivot positions, different lateral forces are applied to the stranded winding material, wherein it can be specified that in one pivot position, no lateral force is applied to the stranded winding material at all, and the stranded winding material, in particular, does not support the preforming element, such that there is at least no contact between the stranded winding material and the preforming element, but rather a distance is formed. During the transition between the first pivot position and the second pivot position, the lateral force can be increased or decreased. Therefore, it can be specified, for example, that no lateral force, or a lower lateral force, is applied during the so-called overhead travel of the winding nozzle and preformed element relative to the carrier. This overhead travel, for example, is performed when stranded winding material is deposited onto the end face or narrow edge of the carrier surface during winding, during which the winding nozzle then moves opposite the end face or narrow edge.

[0016] In this or other embodiments, the shifting system can be controlled by means of an associated control device configured to control the movement of the winding nozzle, preform element, and / or carrier provided by the shifting system according to control parameters. These control parameters, for example, control one or more actuators during the winding operation to perform the desired movement. For this purpose, the control device can be constructed using software techniques.

[0017] In one embodiment, by means of a control device, the transition between a first pivot position and a second pivot position, as well as the associated change in lateral force, can be initialized as a function of the current or instantaneous relative position of the winding nozzle and the preformed element relative to the carrier. For example, when the winding nozzle and the preformed element are positioned opposite a corner or edge region of the carrier during winding, the transition between different pivot positions of the preformed element relative to the winding nozzle can be provided.

[0018] For example, during winding or position jumps while the stranded winding material is wound onto a carrier, a transition to a pivot position can be provided in which no lateral force is applied to the stranded winding material via the preforming element. This allows the winding nozzle (particularly the nozzle opening) to be displaced, for example, relative to the carrier (e.g., toward the carrier) to perform the jump without being adversely hindered by the lateral force applied to the stranded winding material by the preforming element.

[0019] The shifting system can also be configured to shift the preformed element between the first pivot position and the second pivot position as the preformed element undergoes continuous pivoting movement, thereby continuously changing the lateral force from the actual state (existing lateral force) to the target state (changed lateral force). The continuous pivoting movement between the first and second pivot positions can be specifically performed as an uninterrupted movement between the first and second pivot positions. For example, by means of continuous pivoting movement, a reduction in the applied lateral force can be performed along the path from the winding nozzle and the preformed element toward the corner or edge region of the carrier. Alternatively, the transition between the first and second pivot positions can occur instantaneously or abruptly (discontinuously) during the winding process.

[0020] The lateral force on the strand winding material can be periodically activated using the shifting system. In this embodiment, the lateral force is not applied continuously or permanently to the strand winding material. Instead, the application of the lateral force is interrupted once or several times during winding. Therefore, it can be specified that during the formation of the winding on the carrier, the lateral force does not act continuously on the strand winding material, but is periodically activated relative to the contour region of the surface line of the carrier. By means of a control device assigned to the shifting system, for example, the application and non-application of the lateral force to the strand winding material can be controlled as a function of the impact point of the strand winding material striking the surface of the carrier. Although no lateral force is applied in a first region of the carrier surface (e.g., in the end face or narrow side region of the carrier), the application of the lateral force occurs when the strand winding material strikes a second region of the carrier surface (e.g., in the longitudinal side region of the carrier) during winding.

[0021] The shifting system can be configured to maintain a substantially constant lateral force on the stranded winding material during the winding process onto the carrier. Compared to periodic activation, the shifting system in this embodiment is configured to maintain a substantially constant lateral force during the formation of the winding along the surface of the carrier, such as during the production of a complete winding, and particularly even when the formation of the winding involves one or more overhead operations.

[0022] The displacement system can also be configured to displace the preformed element parallel to the axial direction of the winding nozzle. Specifically, the preformed element can be displaced relative to the nozzle opening of the winding nozzle in such a way that, for example, the preformed element is displaced only to a position, for example, adjacent to or away from the nozzle opening. In this way, for example, the preformed element can be retracted relative to the winding nozzle, which is parallel to the axial direction of the winding nozzle, so that the winding nozzle can be displaced relative to the carrier during winding without the risk of collision between the carrier and the preformed element, for example, during insertion of the winding nozzle into a groove or gap in the carrier. Optional displacement of the preformed element without simultaneously displacing the winding nozzle can further reduce the mass to be moved during the displacement movement, thereby increasing the displacement speed relative to the movement of the winding nozzle and the preformed element together.

[0023] The displacement system can also be configured to apply at least one of the following movements to the winding nozzle: rotating the winding nozzle about its own longitudinal axis; and displacing the winding nozzle in the axial direction of the winding nozzle. In this way, the displacement system enables additional degrees of freedom of movement relative to the winding nozzle (e.g., also relative to the preformed element).

[0024] The axial displacement of the winding nozzle during winding (without moving the preformed element, but by which relative movement is performed between the winding nozzle and the preformed element) allows for a reduction in the mass to be moved during displacement, for example, by means of a displacement system or a displacement device assigned to the winding nozzle. This allows for higher displacement speeds, thereby enabling the winding process to be performed more efficiently and in a shorter time. Thus, for example, the feed motion of the winding nozzle in the direction of the carrier can be performed with a minimized mass to be moved, and therefore faster, for example, as a downward motion (displacement toward the carrier) during overhead travel during winding.

[0025] In one embodiment, rotation of the winding nozzle about its own longitudinal axis allows the winding nozzle to rotate about the longitudinal axis, while the winding nozzle and the preformed element are displaced together relative to the carrier during winding, for example, by rotating about the carrier. Therefore, it can be specified that when the winding nozzle and the preformed element are arranged to face a first segment of the carrier surface (e.g., opposite a longitudinal edge) during winding, the winding nozzle is positioned in a first rotational position, so that when the preformed element and the winding nozzle are arranged to face a second segment of the carrier surface (e.g., a narrow edge or end face) different from the first rotational position during winding, the winding nozzle is displaced to a second rotational position different from the first rotational position. Movement of the winding nozzle (whether by means of rotation about its own longitudinal axis and / or displacement along the axial direction) changes the relative positions of the winding nozzle and the preformed element relative to each other.

[0026] In this or other embodiments, the shifting system may be configured with a first shifting device assigned to the winding nozzle and a second shifting device assigned to the preformed element. The first and second shifting devices enable the corresponding shifting of the winding nozzle or the preformed element. The first and second shifting devices may be formed separately from each other, or partially formed as an integrated common shifting device.

[0027] In an exemplary embodiment, a third shifting device may be provided, which is assigned to the winding nozzle and the preforming element and is configured to move the preforming element and the winding nozzle together relative to the carrier for winding stranded winding material onto the carrier.

[0028] The displacement system may consist of one or more actuators, such as servo motors, wherein, for example, at least one actuator can be assigned to each displacement device. To control the operation of the actuators, these actuators can be connected to a control device.

[0029] The displacement system can also be configured to: (i) during the winding of the stranded winding material, form a first axial position relative to the preformed element during the application of the stranded winding material in a first region of the carrier for the winding nozzle, in which the stranded winding material is supported against the preformed element to introduce a lateral force in a first element section of the preformed element; and (ii) during the application of the stranded winding material in a second region of the carrier for the winding nozzle, different from the first region, by means of axial displacement of the winding nozzle and / or the preformed element, form a second axial position relative to the preformed element, different from the first axial position, wherein the stranded winding material is supported against the preformed element in the second axial position to introduce a lateral force in a second element section of the preformed element, different from the first element section.

[0030] During the axial displacement of the winding nozzle between the first and second axial positions, the winding material slides or slips along the surface of the preformed element in contact with the preformed element, wherein, for example, the lateral force applied by the preformed element to the stranded winding material remains substantially constant. This makes it possible to change the relative position of the winding nozzle with respect to the preformed element, for example, by means of the axial displacement of the winding nozzle, during the winding of the stranded winding material onto the carrier, for example, to perform a winding jump, without thereby changing the lateral force applied by the preformed element to the stranded winding material. Therefore, when the departure behavior of the stranded winding material from the nozzle opening of the winding nozzle changes, for example, the departure angle of the stranded winding material relative to the longitudinal direction of the winding nozzle, the application of the lateral force can also be maintained substantially the same.

[0031] In this or other embodiments, the section of the stranded winding material that slides or slips on the preformed element during the axial displacement of the winding nozzle can be aligned substantially parallel to the axial direction of the winding nozzle.

[0032] For example, variations in the lateral force of the winding nozzle relative to a first axial position and a second axial position of the preformed element can be provided, such that the preformed element simultaneously pivots about the nozzle opening between a first pivot position and a second pivot position.

[0033] The shifting system can be configured to rotate the preformed element together with the winding nozzle about the longitudinal axis of the winding nozzle. Alternatively or additionally, the shifting system can be configured to shift the preformed element together with the winding nozzle along the longitudinal axis (axial direction) of the winding nozzle. To ensure that the joint shifting of the winding nozzle and the preformed element does not change their relative positions, the shifting system can have, for example, another shifting device formed with a servo motor.

[0034] In one embodiment, a coupling device is provided by which the winding nozzle and the preformed element can be coupled for using the shifting system to jointly shift the winding nozzle and the preformed element, or can be separated for using the shifting system to separate the shifting nozzle and / or the preformed element.

[0035] To enable the preformed element to rotate together with the winding nozzle about the longitudinal axis of the winding nozzle, the connecting device can be configured to releasably connect a first shifting device of the shifting system assigned to the winding nozzle and a second shifting device assigned to the preformed element, such that the preformed element and the winding nozzle can rotate together about the longitudinal axis due to the connection. The relative position between the winding nozzle and the preformed element can be maintained here by means of the connecting device, particularly relative to the axial direction. If the rotation of the preformed element and the winding nozzle about the longitudinal axis of the winding nozzle is performed in conjunction, the shifting devices can be disengaged again.

[0036] In this or other embodiments, the coupling device can be configured or designed to engage the first and second displacement devices only for selected combined movements of the preformed element and the winding nozzle (e.g., combined rotation about the longitudinal axis of the winding nozzle), while still enabling relative displacement of the preformed element and the winding nozzle in the axial direction of the winding nozzle or the preformed element in the coupled state. Alternatively, the coupling device locks the winding nozzle and the preformed element in the coupled state to resist any relative movement between them. This can be provided, for example, for a local section of the winding of the stranded winding material on the carrier, so as to keep the arrangement of the winding nozzle and the preformed element as mechanically stable as possible during movement about the carrier. The separation of the movements of the winding nozzle and the preformed element makes it possible to reduce the mass to be moved during displacement.

[0037] The preformed element may have a contact or working section in which the stranded winding material is supported against the preformed element to introduce the lateral force. In the region of the contact section, a guiding device may be provided, configured to guide the stranded winding material on the preformed element during winding onto the carrier. The guiding device may, for example, be formed with a guiding groove and / or a guiding recess in which the stranded winding material is guided when supported against the preformed element to apply the lateral force. In this way, the supply of stranded winding material to the surface of the carrier is more independent of the departure behavior of the stranded winding material from the nozzle opening.

[0038] Upstream of the feed inlet of the winding nozzle, a clamping device configured to clamp the stranded winding material, which is fed into the winding nozzle via the feed inlet, can be arranged. The clamping device prevents the stranded winding material from advancing further out of the nozzle opening. For example, if a tensile force is generated in the region upstream of the nozzle opening during the separation of the stranded winding material, the clamping device acts against the tensile force and prevents the stranded winding material from sliding, for example, into or out of the nozzle opening.

[0039] It can be specified that during the winding process for the preformed element and the winding nozzle, a relative position is set in the axial direction in which the preformed element does not protrude beyond the front end of the winding nozzle. For example, the stranded winding material can thus be supported against the preformed element at its farthest point, avoiding possible collisions, such as during the deposition of the first winding on the winding base near the carrier. Therefore, even from the moment the first winding is applied to the carrier, a lateral force can be applied to the stranded winding material by means of the preformed element.

[0040] The embodiments explained above in conjunction with the winding apparatus can be correspondingly provided as embodiments of a method for producing stranded winding material on a carrier. Attached Figure Description

[0041] Further exemplary embodiments are explained below with reference to the accompanying drawings. In the drawings: Figure 1 A schematic perspective view showing the arrangement of a winding device having a winding nozzle, a pre-forming element, a shifting device, and a distributed control device; Figure 2 Shown from Figure 1 A partial schematic side view of the arrangement of the wound nozzles and preformed elements; Figure 3 A schematic perspective view shows another arrangement for a winding device having a winding nozzle and a preformed element, wherein the winding nozzle is rotatable about its own longitudinal axis. Figure 4 A schematic diagram showing the winding nozzle and preformed element during winding, as well as the carrier in cross-section; Figure 5 A schematic diagram showing the winding nozzle and preformed element during winding, and the carrier in cross-section, according to another embodiment; Figure 6 A schematic diagram showing the winding nozzle and preformed element during winding, and the carrier in cross-section, according to another embodiment; Figure 7 A schematic diagram of the arrangement of a winding device having winding nozzles and preforming elements with different relative positions in the axial direction is shown. Figure 8 A schematic diagram of the arrangement for a winding device having a winding nozzle and a preformed element is shown, wherein a guide device is formed on the preformed element; Figure 9 A schematic diagram showing the carrier for winding and the assigned winding nozzles in different relative positions during winding; Figure 10 A schematic perspective view showing a series arrangement of multiple winding devices is shown; and Figure 11 A schematic perspective view showing another arrangement for the winding device. Detailed Implementation

[0042] Figure 1 and Figure 2 A schematic diagram of the arrangement for a winding device is shown, the device comprising: a winding nozzle 1; a preforming element 2 assigned to the winding nozzle 1; and a shifting system 3 configured to wind stranded winding material 4 (e.g., wire) onto a carrier 5 (see [reference]). Figure 4During the winding process, the winding nozzle 1 and the preforming element 2 move. When the strand winding material 4 is wound, the winding nozzle 1 and the preforming element 2 on one side and the carrier 5 on the other side move relative to each other, for example, the winding nozzle 1 and the preforming element 2 move around the carrier 5.

[0043] In the example shown, the shifting system 3 is formed with a first shifting device 6, which is assigned to the winding nozzle 1 and is configured to operate at least in the axial direction of the winding nozzle 1 (i.e., in...). Figure 1 (In the vertical direction of the illustration) the displacement winding nozzle 1. For this purpose, the first displacement device 6 in the example shown is designed with a spindle drive 6a.

[0044] The second shifting device 7 is assigned to the preforming element 2 and is configured to pivot the preforming element 2 about the nozzle opening 8 of the winding nozzle 1, for example, up to 360 degrees, such that at least the relative position of the preforming element with respect to the winding nozzle 1 is thereby changed (see in particular below regarding Figures 4 to 6 (Further explanation). In the exemplary embodiment shown, in order to pivot the preformed element 2 about the nozzle opening 8 or the winding nozzle 1, a gear mechanism 7a is provided as part of the second shifting device 7. The gear mechanism 7a is functionally connected to the assigned actuator 7b, such that the drive motion provided by the actuator 7b can be converted into rotational or pivotal motion of the preformed element 2.

[0045] Through the nozzle opening 8, the stranded winding material 4 leaves the winding nozzle 1 and is fed to the winding nozzle 1 via the upstream feed device 1a.

[0046] The third shifting device 9 of the shifting system 3 is assigned to the winding nozzle 1 and the preforming element 2, and is configured to move the winding nozzle 1 and the preforming element 2 together relative to the carrier 5 during the winding of the strand material onto the carrier 5. The first shifting device 6, the second shifting device 7 and the third shifting device 9 may each be assigned to at least one actuator for manipulating the corresponding movement, wherein the actuator may be formed, for example, a servo motor.

[0047] To control the motion, a control device 10 is provided, which is configured to control the first shifting device 6, the second shifting device 7, and / or the third shifting device 9 during operation during the winding of the stranded winding material 4. For this purpose, the control device 10 can be constructed using software technology to generate the corresponding desired motion components or motions by providing corresponding control signals for different applications.

[0048] In the illustrated embodiment, the preformed element 2 is designed as a rod or pin and has a working or contact section 11 in which the stranded winding material 4 is supported during winding by forming a contact between the preformed element 2 and the stranded winding material 4. This allows for the continuous or intermittent application of a lateral force to the stranded winding material 4 during winding it transversely to its longitudinal extent onto the carrier 5, thus applying an elastic to plastic preload to the stranded winding material 4 before it is deposited onto the carrier 5. Consequently, protrusions that could hinder the contour-compliant deposition of the stranded winding material 4 onto the carrier 5 are avoided during the deposition of the stranded winding material 4 onto the carrier 5 (particularly in non-circular flat surface areas of the carrier 5).

[0049] On the inlet side, the winding nozzle 1 is equipped with an upstream clamping device 1b, which enables the strand winding material 4 to be clamped, thereby preventing the strand winding material 4 from advancing further.

[0050] according to Figure 2 The stranded winding material 4 emerges from the nozzle opening of the winding nozzle 1 at an angle of approximately 90 degrees. In the example shown, the winding nozzle 1 and the preformed element 2 extend approximately parallel to each other in the axial or longitudinal direction.

[0051] Figure 3 A schematic perspective view of another arrangement for a winding device having a winding nozzle 1 and a preforming element 2, and assigned first and second shifting devices 6 and 7, is shown. In the illustrated embodiment, the first shifting device 6 assigned to the winding nozzle 1 is configured to not only shift the winding nozzle 1 along its axial direction but also to rotate the winding nozzle 1 about its own axial direction. In the illustrated embodiment, a groove 1d extending in the axial direction of the winding nozzle 1 is formed at the upper end 1c of the winding nozzle 1. This groove 1d can engage with a pin (not shown) arranged on a gear mechanism 7a so that rotational motion is thus transmitted to the winding nozzle 1 by means of the assigned second shifting device 7. Additionally, the shifting system 3 is constructed, for example, by means of a transmission element having assigned ball bearings (not shown) for transmitting the drive motion of the spindle drive 6a for axial displacement of the spindle drive 6a (in this case, to separate the winding nozzle 1 from the spindle drive 6a).

[0052] Figures 4 to 6A schematic diagram of a carrier 5 in cross-section is shown, which in the illustrated example has a rectangular cross-section. Stranded winding material 4, exiting from the nozzle opening, is deposited on the carrier 5 in the form of multiple windings via winding nozzles 1, wherein the winding nozzles 1 and the preforming element 2 move together around the carrier 5 and its surface 5a opposite to each other. The preforming element 2 is thus displaced relative to the nozzle opening 8 of the winding nozzles 1 into different pivot or rotational positions by means of a second displacing device 7, such that the preforming element 2 is arranged in a first pivot position 12 spaced apart from the stranded winding material 4, such that no lateral force is introduced onto the stranded winding material 4 through the preforming element 2. In the second pivot position 13, the preforming element 2 contacts the stranded winding material 4 and applies a lateral force to it, wherein an angle 14 is formed between segments of the stranded winding material 4 on two opposite sides of the preforming element 2, the larger the angle, the greater the applied lateral force.

[0053] exist Figure 4 In the illustrated embodiment, a lateral force is activated and applied periodically (intermittently). Although the lateral force is applied during the deposition of the stranded winding material 4 onto the longitudinal edge 15 of the carrier 5, this force application during the deposition of the stranded winding material 4 does not exist in the region of the end face 16 of the carrier 5 (so-called overhead travel). The displacement between the first pivot position 12 and the second pivot position 13 of the preformed element 2 can be controlled by means of the control device 10, such that the displacement is set as a function of the relative position of the winding nozzle 1 relative to the carrier 5.

[0054] Arrow A schematically indicates in Figures 4 to 6 The direction of movement of the winding nozzle 1 and the preforming element 2 during the winding on the longitudinal edge 15 of the carrier 5.

[0055] exist Figure 4 In the embodiment described, when the stranded winding material 4 contacts the preformed element 2 to apply force, a constant lateral force is applied to the stranded winding material 4, and for this reason, angle 14 remains approximately constant. According to... Figure 5 In another embodiment, during the movement of the arrangement having the winding nozzle 1 and the preformed element 2 along the longitudinal edge 15 of the carrier 5, the stranded winding material 4 is applied with different lateral forces by pivoting the preformed element 2 around the nozzle opening of the winding nozzle 1, thereby changing the angle 14.

[0056] Figure 6 Another embodiment is shown, wherein the winding nozzle 1 rotates additionally about its own longitudinal axis during movement about the carrier 5 for winding the stranded winding material 4, wherein the rotation is set as a function of the arrangement or position of the winding nozzle 1 relative to the carrier 5.

[0057] Figure 7A schematic diagram of the arrangement of a winding nozzle 1 and a preforming element 2, along with assigned displacement devices 6 and 7, is shown (for different relative positions of the preforming element 2 and the winding nozzle 1 in the axial direction of the winding nozzle 1). In figures a) to c), the stranded winding material 4 is arranged in different regions of the working section 11 on the preforming element 2, which is a result of the axial displacement of the winding nozzle 1 in the illustrated example, where the position of the preforming element 2 in the axial direction remains constant. This operating mode can be provided, for example, by incorporating winding jumps during overhead travel. Despite the different positions along the working section 11, the stranded winding material 4 can be applied with the same lateral force.

[0058] Figure 7 The diagram in Figure c) shows the relative position of the preforming element 2 with respect to the winding nozzle 1, which prevents potential collisions during the winding process. This is possible during winding, for example, when the preforming element 2 protrudes beyond the tip of the winding nozzle 1 in the axial direction. The relative position shown avoids collisions, for example, during the deposition of the first winding near the winding base of the carrier 5, in which the stranded winding material 4 is supported against the preforming element 2 in the region of the working section 11 at the farthest (farthest) end 2a of the preforming element 2. Therefore, a lateral force can be applied to the stranded winding material 4 by means of the preforming element 2, which has already been applied since the first winding.

[0059] During the production of the first winding on the carrier 5, an axial position can be set between the preforming element 2 and the winding nozzle 1, for example, such that a lateral contraction can be applied to the strand winding material 4 without collision between the preforming element 2 and the carrier 5. Specifically, the preforming element 2 can be arranged relative to the winding nozzle 1 such that the preforming element 2 does not protrude beyond the strand winding material 4, such as... Figure 7 As shown in the exemplary illustration c), there, the stranded winding material 4 emerges from the winding nozzle 1 at an angle of approximately 90 degrees.

[0060] Figure 7 Figure d) shows how the preformed element 2 is arranged spaced apart from the stranded winding material 4. This position is advantageous, for example, for initially applying the stranded winding material 4 before the actual winding process (in which the stranded winding material 4 is deposited on the carrier 5), and for depositing the stranded winding material 4 after the actual winding process in a wire clamp (not shown) belonging to the carrier 5. Figure 7 The arrangement shown in Figure d) is also referred to as “free travel of the winding nozzle”.

[0061] Figure 8A schematic diagram showing the arrangement of the winding nozzle 1, the preforming element 2, and the assigned shifting devices 6 and 7 is provided. In this example, the stranded winding material 4 is guided in the region of the working section 11 of the preforming element 2 in a guide device 17, which is, for example, formed with a groove or notch. Figure 8 The figures a) to c) show the exit behavior of the stranded winding material 4 from the nozzle opening 8 of the winding nozzle 1 under different tensile loads on the stranded winding material 4. By means of the guide device 17, the stranded winding material 4 can be fed to the carrier 5 in a constant manner during winding.

[0062] Figure 9 A schematic diagram is shown of a stranded winding material 4 wound on a carrier 5, which includes multiple sub-carriers 5.1, ..., 5.6, each of which is provided with a winding. Figure 9 Figures a) to e) show different relative positions of the winding nozzle 1 with respect to the carrier 5, such that the winding nozzle 1, starting from the position in figure a) until figure c), moves closer to the carrier 5 and thus shifts along the axial direction of the carrier 5, causing the distance AB to decrease. Thereafter, the distance AB increases again until, according to figure e), the starting position according to figure a) is taken again.

[0063] Figure 10 A schematic perspective view showing a series arrangement of winding devices 20.1, ..., 20.8, each of which is configured to correspond to one embodiment of the embodiments explained above.

[0064] Figure 11 A schematic perspective view of another arrangement for the winding device is shown. For the combined axial displacement of the winding nozzle 1 and the preforming element 2, the displacement system 3 in this embodiment has an additional displacement device 30, which can be formed as a drive device, for example, using a servo motor.

[0065] The features disclosed in the foregoing specification, claims and drawings, whether individually or in any combination, may be important for the implementation of various embodiments.

Claims

1. A winding apparatus for producing a winding of stranded winding material (4) on a carrier (5), comprising: - A winding nozzle (1) configured to feed stranded winding material (4) for winding onto a non-circular carrier (5), and in the winding nozzle (1), the stranded winding material (4) exits via a nozzle opening (8) for feeding. - A preforming element (2), which is assigned to the winding nozzle (1) and is configured to apply an elastic to plastic preload to the stranded winding material (4) exiting from the nozzle opening (8) before the stranded winding material (4) is applied to the carrier (5), and for this purpose, a transverse force is applied to the stranded winding material (4) in a longitudinal range transverse to the stranded winding material (4); as well as - A shifting system (3) configured to move the winding nozzle (1) and the preforming element (2) together relative to the carrier (5) for winding the stranded winding material (4); The shifting system (3) is also configured to pivot the preformed element (2) about the nozzle opening (8), thereby changing the relative position of the preformed element (2) with respect to the winding nozzle (1).

2. The winding device according to claim 1, characterized in that, The preformed element (2) is capable of pivoting around the nozzle opening (8) within an angular range of up to 360 degrees.

3. The winding device according to claim 1 or 2, characterized in that, The shifting system (3) is also configured to change the pivot position of the preformed element (2) during the winding of the stranded winding material (4) onto the carrier (5), thereby changing the relative position of the preformed element (2) with respect to the winding nozzle (1).

4. The winding apparatus according to at least one of the preceding claims, characterized in that, The shifting system (3) is also configured to, during the winding of the stranded winding material (4): - During the application of the stranded winding material (4) in the first region of the carrier, the preforming element (2) is arranged in a first pivotal position relative to the winding nozzle (1), in which the preforming element (2) applies a first lateral force to the stranded winding material (4), and - During the application of the stranded winding material (4) in a second region of the carrier (5) different from the first region, the preforming element (2) is displaced by means of pivoting around the nozzle opening (8) to a second pivoting position relative to the winding nozzle (1) different from the first pivoting position, wherein the preforming element (2) applies a second lateral force different from the first lateral force to the stranded winding material (4) or does not apply a lateral force in the second pivoting position.

5. The winding device according to claim 4, characterized in that, The displacement system (3) is also configured to perform displacement of the preformed element (2) between the first pivot position and the second pivot position as the preformed element (2) undergoes continuous pivoting motion, thereby causing the lateral force to change continuously.

6. The winding apparatus according to claim 4 or 5, characterized in that, The lateral force on the strand winding material (4) can be periodically activated using the shifting system (3).

7. The winding apparatus according to at least one of claims 1 to 3, characterized in that, The shifting system (3) is also configured to maintain a substantially constant lateral force on the strand winding material (4) during the winding of the strand winding material (4) onto the carrier (5).

8. The winding apparatus according to at least one of the preceding claims, characterized in that, The displacement system (3) is also configured to shift the preformed element (2) in a direction parallel to the axial direction of the winding nozzle (1).

9. The winding apparatus according to at least one of the preceding claims, characterized in that, The shifting system (3) is also configured to apply at least one of the following movements to the winding nozzle (1): - To rotate the winding nozzle (1) about its own longitudinal axis; and - Displace the winding nozzle (1) in the axial direction of the winding nozzle (1).

10. The winding apparatus according to claim 8 or 9, characterized in that, The shifting system (3) is also configured to, during the winding of the stranded winding material (4): - During the application of the stranded winding material (4) in a first region of the carrier (5) for the winding nozzle (1), a first axial position is formed relative to the preformed element (2), in which the stranded winding material (4) is supported against the preformed element (2) to introduce a lateral force in a first element section of the preformed element (2), and - During the application of the stranded winding material (4) in a second region of the carrier (5) for the winding nozzle (1) that is different from the first region by means of axial displacement of the winding nozzle (1) and / or the preforming element (2), a second axial position relative to the preforming element (2) that is different from the first axial position is formed, wherein the stranded winding material (4) is supported against the preforming element (2) in the second axial position so as to introduce a lateral force in the second element section of the preforming element (2) that is different from the first element section.

11. The winding apparatus according to at least one of the preceding claims, characterized in that, The shifting system (3) is also configured to cause the preformed element (2) to rotate together with the winding nozzle (1) about the longitudinal axis of the winding nozzle (1).

12. The winding apparatus according to at least one of the preceding claims, characterized in that, A coupling device is provided, by which the winding nozzle (1) and the preforming element (2) can be coupled for co-positioning the winding nozzle (1) and the preforming element (2) using the shifting system (3), or can be separated for separating the shifting of the winding nozzle (1) and / or the preforming element (2) using the shifting system (3).

13. The winding apparatus according to at least one of the preceding claims, characterized in that, The preformed element (2) has a guide device (16) in a contact section (11) in which the stranded winding material (4) is supported against the preformed element (2) to introduce a lateral force. The guide device (16) is configured to guide the stranded winding material (4) on the preformed element (2) during winding onto the carrier (5).

14. The winding apparatus according to at least one of the preceding claims, characterized in that, A clamping device (1b) configured to clamp the stranded winding material (4) is arranged upstream of the feed inlet of the winding nozzle (1), the stranded winding material (4) being fed to the winding nozzle (1) via the feed inlet.

15. A method for producing a winding of stranded winding material (4) on a carrier, wherein, The method includes the following steps: - The stranded winding material (4) is wound onto the non-circular carrier (5) by means of a winding nozzle (1), in which the stranded winding material (4) leaves through the nozzle opening (8); - Using a preforming element (2) assigned to the winding nozzle (1), an elastic to plastic preload is applied to the stranded winding material (4) exiting the nozzle opening (8) before the stranded winding material (4) is applied to the carrier (5), wherein a lateral force is thus applied to the stranded winding material (4) in a transverse direction to the longitudinal extent of the stranded winding material (4); and - The winding nozzle (1) and the preforming element (2) are moved together relative to the carrier (5) by means of the shifting system (3) for winding the stranded winding material (4) onto the carrier (5); The preforming element (2) is pivoted around the nozzle opening (8) by means of the shifting system (3) to change the relative position of the preforming element (2) with respect to the winding nozzle (1).

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