JP2008127207A - Winder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winder 1 for rolling up yarn 2 on a yarn winding body 4. <P>SOLUTION: Pressure contact force between a pressure contact roller 19 and the yarn winding body 4 is desirably reduced in response to an increase in a diameter of the yarn winding body 4 for winding up the yarn 2 composed of, for example, carbon fiber. By this invention, an actuator 20 acting on the pressure contact force is inclined to a degree of freedom 14 of the pressure contact roller 19 at an angle α. This angle α automatically changes in response to an increase in the diameter of the yarn winding body 4. Component force of the actuator 20 acting in the direction of the degree of freedom 14, automatically reduces by depending on the angle α. Automatic adaptation to the diameter of the yarn winding body 4 of the pressure contact force is attained by a structurally simple method even on constant force of the actuator 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a winder for winding a yarn around a bobbin according to the superordinate concept of claim 1.

  From European Patent No. 1 213 246 (Patent Document 1), a winder for winding a yarn around a winding body is known. This winder is equipped with a revolver head (Revolverkopf) that can be swiveled around a horizontal axis in the form of a disc, and protrudes relative to the peripheral surface from this disc, and can be driven separately. Two spindles extend. As the spindle rotates, the yarn is wound on the bobbin. The spindle is provided with a spool in the upper position, but in the lower position the bobbin is spaced from the spindle together with the spool, so that the spindle can be inserted into the spindle, for example by inserting a tube into the spindle. Be prepared. The bobbin is finished in the area of the upper spindle, the lower spindle is prepared, and the revolver head is turned about 180 ° to prepare a new winding process. The yarn is supplied to the bobbin, that is, the bobbin, in a region where the pressure roller contacts the bobbin. The pressure roller is pivotably supported with respect to the machine frame, which has a vertical and translational sliding-freedom (Verschiebe-Freiheitsgrad), in which case the machine frame is in two vertical directions. It is guided through a guide rod that is oriented. An actuator is inserted between the machine frame of the winder and the housing, and this actuator is formed as a pressure cylinder and performs a power action on the machine frame in the direction of freedom (Freiheitsgrad). The pressure contact force of the pressure roller against the bobbin is a vector sum of gravity of the machine frame and the pressure roller, divided by the force of the pressure cylinder. By appropriately controlling the pressure cylinder, the machine frame is lifted together with the pressure roller as the diameter of the bobbin body increases. In this case, the control of the pressure cylinder is performed so that the pressure contact force of the pressure roller in the bobbin is kept constant. The adjustment unit used for this purpose consists of a solenoid valve for adjusting the supply of compressed air to the pressurized cylinder, a compressed air supply, a control circuit, an adapting device for setting the pressure contact force to be maintained as well as practically A sensor for detecting the force mode is provided. The adjustment of the pressure, that is, the adjustment of the pressure contact force, is performed so as to be a constant value within a predetermined narrow range, here, ± 3%.

  Furthermore, in European Patent No. 1 213 246 (Patent Document 1), the degree of freedom between the spindle and the bobbin is not formed in translation on the one hand, and the degree of freedom between the spindle and the pressure roller on the other hand is not formed in translation. An alternative configuration formed as a translational degree of freedom is disclosed. In this case, the pressure contact roller is rotatably supported with respect to the machine frame formed as a swivel arm. In this case, the pressure cylinder acts on this swivel arm. The leverage of the force generated by this pressure cylinder is constant in the disclosed embodiment by a configuration in which the swivel arm is unable to swivel as much as possible with increasing diameter of the bobbin. Maintained in a state. This is achieved by turning the revolver head with a small amount such that the contact point of the pressure roller on the bobbin body remains substantially constant regardless of the thickness of the bobbin body as the diameter of the bobbin body increases.

  German Patent Publication No. 197 05 262 (Patent Document 2) discloses a method of adjusting the pressure contact force depending on the ratio of the rotational speed of the pressure roller to the rotational speed of the bobbin. In this case, this adjustment is performed in such a way that a state free from slippage between the pressure roller and the bobbin is achieved as much as possible.

German Patent Publication No. 102 53 489 (Patent Document 3) raises a problem that a variable gravitational force acts on the bobbin body as the relative position of the bobbin body with respect to the pressure roller is changed. Yes. Under the premise that this change in this heavy force of the German patent publication 102 53 489 is controlled as much as possible, the winder detects the changing pressure and the pressure is kept constant. There is a need for an expensive force measuring device that allows readjustment of the actuator. This German Patent Publication No. 102 53 489 preferentially simulates the relationship between the relative position between the pressure roller and the spool and the gravitational force acting instead of using the force measuring device described above. is suggesting. At this time, it is possible to detect a relative position via an appropriate sensor and to detect a required change in the force of the actuator, thereby obtaining a constant pressure contact force. The embodiment disclosed in DE 10253489 also acts on the swivel arm, on which the actuator supports the pressure contact force, with a constant lever force, in which case the change in the diameter of the bobbin winds down the revolver head. Based on the idea of being balanced by movement. The winder according to German Offenlegungsschrift 102 53 489, in which the relative movement between the pressure roller and the spool is induced by a linear guide and only one spindle is provided, is only for non-continuous winding of the yarn used.

  German Offenlegungsschrift 10 2005 096 (Patent Document 4) is also based on the fact that the pressure contact force between the pressure roller and the bobbin remains substantially constant during the winding operation. This publication proposes that an adjustment mechanism that can be freely accessed is provided on the front surface of the winder so that the pressing force can be adjusted by an operator before the start of the winding process via this adjustment mechanism. Yes.

  From DE 10 2004 032 514 (Patent Document 5), it is known to rotatably support a cross bobbin on a winder machine frame. The winder machine frame itself is supported so as to be rotatable with respect to an immovable shaft, and this winder machine frame forms a kind of “pendulum body” with its center of gravity off its center. The winder frame as a “horizontal pendulum” is supported relative to the drive roller. As the diameter of the cross bobbin increases, the turning angle of the “horizontal pendulum body” changes and the weight of the cross bobbin increases, so that the press contact force between the cross bobbin and the press roller increases. In order to correct such a change in the pressing force of the cross bobbin with respect to the pressing roller, a power introducing means including a lever arm acts on the winder machine frame. This lever arm changes as the diameter of the cross bobbin increases, that is, as the turning angle of the horizontal pendulum increases. In this case, the geometric aspect is selected as follows. That is, for the minimum diameter of the cross bobbin, the power introduction means generates a rotational moment that enhances the pressure contact force of the cross bobbin with respect to the driving roller. On the other hand, for the medium diameter, the leverage force becomes zero and is generated by the power introduction means. Along with the further increase of the diameter of the cross bobbin, this moment acts to remove the load with a reduction of the pressure contact force of the cross bobbin against the pressure roller. Selected. This unloading compensates for the increased cross bobbin weight as the cross bobbin diameter increases. German Offenlegungsschrift 10 2004 032 514 further makes it possible to change the geometric aspects described above at the start of the winding process and / or in the course of the winding process. It has been proposed to provide an adjusting device with an electric motor. The power introduction means is designed as an air spring, which is maintained at an equilibrium point by the action of a constant and adjustable pressure whose safety is compensated via a check valve.

  A similar embodiment is known from German Offenlegungsschrift 4 121 775, in which a piston-cylinder-actuator unit which is acted on by a pressure medium in addition to a spring comprises a winder. Acts on the machine frame.

  In US Pat. No. 3,672,584 (Patent Document 7) and US Pat. No. 3,672,583 (Patent Document 8), a winder in which a pressure roller is rotatably provided in a stationary support state. Is disclosed. The spindle is supported in the form of a kind of a vertically reversing pendulum body. In this case, the pincushion body is supported by the pressure roller at approximately 1 o'clock position of the clockwise position at the start of the winding process. As the diameter of the pincushion increases, the pendulum moves from the 12 o'clock position to the 11 o'clock position via an unstable equilibrium point. While the vertical pendulum body gravity at 1 o'clock position is in a state where the maximum force can be obtained for the pressure contact force between the pressure roller and the pincushion, this force is 0 at the clock position 12 o'clock-clock position. descend. As the diameter of the bobbin is further increased, gravity exerts a moment on the reversing pendulum body, which tends to move the pincushion away from the pressure roller. These patent publications propose that the dependency of the pressure contact force between the bobbin and the pressure roller is additionally adjusted by a large number of springs, and these springs are mounted at one spring mounting point at the winder machine frame. Are pivoted to different positions of the pendulum body at the other spring mounting support point, in which case these springs can act on the pendulum body under a variable angle. Yes, especially effective over the partial pendulum movement stroke of the pendulum movement. Harmonization of the spring and its pivot point is performed such that a pressure contact force between the pressure contact roller and the spool is reduced as the diameter of the spool decreases.

  Furthermore, known techniques are disclosed in German Patent Publication No. 10 2005 003 334 (Patent Document 9) and DE 601 16 243 T2 (Patent Document 10).

European Patent No. 1 213 246 German Republic Patent Publication No. 197 05 262 German Patent Publication No. 102 53 489 German Patent Publication No. 10 2005 096 German Republic Patent Publication No. 10 2004 032 514 German Patent Publication No. 41 21 775 U.S. Pat. No. 3,672,584 U.S. Pat. No. 3,672,583 German Republic Patent Publication No. 10 2005 003 334 DE601 16 243 T2

  The problem underlying the present invention is a winder for winding a yarn capable of realizing a press contact force suitable for the winding process between the press roller and the bobbin by a simple and reliable method. Is to provide.

  According to the present invention, the above object is achieved by the features of claim 1 which is an independent claim and the claims 2 to 6 which are dependent claims corresponding thereto. Solved.

  The recognition that forms the basis of the present invention is that, unlike the above-mentioned known techniques, the premise that the pressure contact force between the pressure roller and the bobbin is kept as constant as possible during the winding stroke is the reason for the slight winding stroke and winding quality. The point is that it is inappropriate. On the contrary, it has been found that the mechanical properties of the “reaction” formed by the spool in relation to the pressure roller change with increasing diameter of the spool. This is because the stiffness decreases with increasing diameter. On the other hand, the press roller that becomes excessively high with an increase in the diameter of the bobbin causes an undesirably large amount in the axial direction of the bobbin.

  On the other hand, the present invention requires an appropriate control of the actuators associated with the costly measuring and adjusting techniques, the known solutions from the known techniques for obtaining a working standard of (constant) pressure contact force. It relies on the perception that it is. This increases the structural costs, the likelihood of malfunctions, the high frequency of maintenance, the costs required for sensor correction and the complexity of the winder.

  Furthermore, the present invention is based on the recognition that, for known winders, fundamentally two different structural forms are known from the known art.

A. Winders with bobbin and rotatorisch degrees of freedom of contact force In such a configuration, the weight of the swiveled member, in particular the bobbin or pressure roller with its own weight that varies over the winding stroke, suitable holding The weight of the device or the rocking body is exhausted, and it is included in the pressure contact force between the pressure roller and bobbin based on a trigonometric function. Therefore, for such a structural mode, each adjustment of the pressure force is directed to non-linearity, and this non-linearity adjustment itself leads to increased costs for structural configuration and / or adjustment during the winding stroke. . The technology taking such a structural mode is disclosed in German Patent Publication No. 197 05 262 (Patent Document 2), German Patent Publication No. 102534 89 (Patent Document 3), German Patent Publication No. 10 2005 055096 (Patent Document 4), German Patent Publication No. 10 2004 032 514 (Patent Document 5), US Pat. No. 3,672,584 (Patent Document 7), US Pat. No. 3,672,583 No. 4 (Patent Document 8) and German Patent Publication No. 41 21775 (Patent Document 6). According to German Patent Publication No. 10 20040 32514 (Patent Document 5) or German Patent Publication No. 4121775 (Patent Document 6), the formation of a moment to be applied and a moment to be unloaded is reduced by a compression spring or a compression spring. In order to detect the pressure contact force between the bobbin and the pressure roller, the air spring and / or the force direction of the piston-cylinder unit force is detected as another nonlinearity. Must be considered. In addition to this, it is necessary to consider the leverage force that changes nonlinearly by turning the turning angle. For structural styles with rotatorisch degrees of freedom, the adjustment of the actuator can be carried out especially in order to simulate the actuator power transmission link specifically in the adjustment section under the consideration of trigonometric functions. It is necessary to recognize the turning angle of the rotor-shaped degree of freedom. From the above, in general, in the case of a structural style having a rotor-shaped degree of freedom, this rotor-shaped degree of freedom is, on the one hand, a function of turning the winder frame without using an appropriate adjusting means. This results in a change in pressure force as a number, and this function produces the desired power characteristics in an optimal configuration that is not possible for all cases, but in a sub-optimal configuration, adjustment of the actuator This may cause complicated adjustment of the force or influence on the actuator's adjustment force transmission path and lever force.

B. Structural style with translational freedom Unlike the above, an aspect of the structural style with translational freedom is relative sliding between the bobbin and the pressure roller. EP 1 213 246 (Patent Document 1), German Patent Publication No. 10 2005 003 334 (Patent Document 9) and DE 601 16 243 T2 (Patent Document 10) belong to such a structural mode. In such a structural mode, the influence of its own weight does not depend on turning according to the degree of freedom. Therefore, the consideration for the dead weight is relatively simple for the adjustment even in the structural configuration, and it is not necessary to consider the non-linearity due to the result of the trigonometric function. It is essential that the structural style with the stator-shaped degree of freedom requires that the linearly acting actuator generate at least one component force for each turning according to the degree of freedom. Is in the direction of the degree of freedom, and therefore there is always a component force that does not contribute to the pressure force, but on the other hand with regard to a winder of a structural style with translational degrees of freedom, Obviously, the actuator acts in the direction of translational degrees of freedom to increase its effectiveness, so it follows the apparently obvious matter that this actuator does not need to generate a component force that does not work to adjust the pressure force. . This is true for all known structural modes with translational degrees of freedom. However, the above premise of actuator orientation in the direction of translational freedom is inevitably that any variation of the pressure contact force between the pressure roller and bobbin will affect the actuator adjustment force. The result is that it comes through.

  The present invention turns away from the prejudice described above by those skilled in the art, and with regard to the structural style having translational freedom (Freiheitsgrad), only the component force of the adjusting force of the actuator, which is regarded as a defect, is pressed. The purpose is to use it to adjust the pressure contact between the roller and bobbin. This misunderstood disadvantage is at least offset by using an actuator whose adjusting force can be constant, i.e. it is not controlled or only needs to be controlled to a constant value.

  In the present invention, it is surprising that the trigonometric function for automatically adjusting the power transmission is used, while this function is used to measure the adjusting force of the actuator. It does not matter. This makes the structure of the winder according to the invention particularly simple and effective.

  On the basis of this recognition, an actuator that produces a constant force (at least with respect to the winding stroke) is used according to the invention. The constant force generated by this actuator can be kept variable in different winding strokes. In the meaning of the present invention, the “constant force” means that the value is within a predetermined limit, for example, ± 8, especially ± 5, ± 3% or ± 1 of the reference value. Means.

  In spite of the use of an actuator with a constant force generation, the variable pressure contact force according to the present invention ensures that the constant force generated by the actuator is completely exerted between the pressure roller and the spindle in a direction of freedom. It is formed by not doing. In this case, the ratio of the component force to the constant force produced by the actuator is not constant during the winding stroke, but rather depends on the distance between the spindle and the pressure roller, ie the movement according to the degree of freedom. This results in a variable pressure force for the pressure roller.

  Therefore, the present invention dares to use only the component force without following the conventional effort in the industry to operate the actuator in the direction of the degree of freedom directly with respect to the optimum force yield and work yield. On the other hand, at the expense of not using the other force component of the actuator. According to the present invention, this configuration, which is regarded as a drawback in the industry due to misunderstanding, has an effect that the interval of the pressure contact force is controlled by dividing the force into an effective component and an invalid component depending on the interval. In this case, in particular, it is not necessary to provide a sensor mechanism requiring a cost for detecting the interval or detecting the pressure contact force, and a control mechanism and an adjusting mechanism depending on the detected signal. Thus, the spacing-dependent adjustment of the pressure force according to the invention provides a simple and efficient automatic adjustment of the pressure force.

  “Yarn” means, in the sense of the present invention, a yarn with a classical meaning such as a twisted product, a spun product or a twisted product. Of course, the “yarn” may be any other long winding.

  In the present invention, the degree of freedom is, for example, a linear degree of freedom oriented in a substantially vertical direction. When such a linear degree of freedom is correlated with the supply of the yarn, a certain angle is formed due to the movement in the direction of the degree of freedom of the pressure roller as the diameter of the spool is increased, and this angle The thread reaches the pressure roller. When a thread guide mechanism or a traverse thread guide (hereinafter referred to as a “thread guide mechanism”) belongs to the pressure contact row, the present invention can achieve a configuration in which the contact condition between the thread guide mechanism and the yarn does not change. For example, when a thread is developed and supplied in a “fan shape” by a thread guide mechanism, a change in the angle causes a change in the fan-shaped unfolded state of the thread. Will be induced on the bobbin. On the other hand, the contact area of the yarn with the thread guide mechanism moves as the angle changes, and the yarn placement location and placement angle in the bobbin also change in an undesirable manner. Another obstacle occurs when the winder is provided with a traverse thread guide that requires an appropriate thread entry angle that does not change during the yarn winding process for certain functions.

  The special simple configuration of dividing the force into effective and ineffective component forces and the movement of the degree of freedom, i.e. the distance between the spindle and the pressure roller, is made according to the invention by the angle α- In this case, the angle α is reached by using a pendulum-like support that is inclined with a dependence on the distance between the spindle and the pressure roller.

The pendulum-like support means in the meaning of the present invention.
-Means a structural part that guides force,
An external force is introduced in the termination region in preference to this structural part,
-This structural part is preferentially placed under normal force in the direction of combination with the lateral force where the termination region disappears.

  By providing the pendulum support portion at an angle α, a correlation between the component force acting in the direction of the degree of freedom and the normal force in the pendulum support portion is formed under a trigonometric function from a geometric aspect. When the actuator acts on the normal in the pendulum support, it is possible to rely on the motion in the direction of the degree of freedom of the force component of the actuator in a simple manner.

  In a simple case, the actuator itself forms a pendulum support, in which case this actuator is pivotally supported on the winder housing, while the pivot point of the other actuator is pivotable, with a degree of freedom at an angle α. On the other hand, it is supported directly or indirectly by the pressure roller.

  Similarly, the end region of the pendulum support is articulated in the direction of the degree of freedom, whereas the opposite end region is oriented at an angle relative to the degree of freedom, for example 90 °. Guided under the thread guide, and the actuator acts on this end region.

  As another configuration according to the invention, it has been found that a configuration as an adjusting cylinder operated by a pressure medium of the actuator, for example operated by pneumatic pressure, is advantageous. When a large number of yarns are wound up on a large number of bobbins at the same time, for example, supply to a large number of adjustment cylinders is performed via a single pressure medium source. Furthermore, the pressure medium can use, for example, a pneumatically operated valve for the purpose of saving costs, through which a constant pressure preparation and thus a constant for the actuator. The preparation of power is possible. Furthermore, it has been found that such a pressure medium can be used very reliably even in continuous work.

  If the dependence of the component force acting in the direction of the degree of freedom is to be variable, the pivoting of the pendulum support (for example with respect to fine adaptation to the aspect and / or with respect to the change of aspect with respect to different winding strokes) It is possible to change the location of the points. Such a change can be made manually by the user, for example, by selectively coupling the pendulum support portion to a number of receiving portions through a slot or similar mechanism. Similarly, the position of the pivot point of the pendulum support can be automatically changed, for example via a step motor or similar mechanism.

  Advantageous further configurations of the invention are apparent from the claims, the description and the drawings. The advantages described in the introductory part of the description of the features of the claims and of the combination of a number of claims are only examples, and these advantages are not only reached from the embodiments according to the present invention, It is possible to achieve the effects by performing the above features in an alternative method or in a comprehensive manner. Other advantages can be inferred from the drawings, in particular from the illustrated geometrical configuration of a number of structural parts and their relative dimensions, as well as their relative arrangement and working coupling. Combinations of features according to different embodiments of the invention or combinations of features of different claims are possible as well, by selecting the dependent claims, and this gives suggestions for other configurations. It is done. This is also true for the features described in the individually illustrated configuration or the accompanying specification. These features can also be combined with features of different claims. Likewise, the features recited in the claims relating to the other embodiments are dependent on the invention.

  FIG. 1 is a side view showing a partial cross section of a winder 1 that works to wind a yarn 2 onto a bobbin 3 and wind it onto a bobbin 4. The winder 1 is provided with a revolver head 5 (see FIG. 2). This revolver head is formed as a disk in the illustrated embodiment, and is mounted relative to the peripheral surface from the revolver head. Two spindles 6 and 7 protrude. These spindles 6 and 7 are rotated about their longitudinal axes through the drive units 8 and 9 independently of each other and relative to the revolver head 5. Tubes 10 and 11 are respectively provided on the spindles 6 and 7, and the yarn 2 is wound around the bobbin 4 for the purpose of forming the bobbin 3 on the tubes 10 and 11. On the bobbin 3, there is a thread guide mechanism 12, which is movable through a guide 13, for example a linear guide, or via a number of guides along a degree of freedom 14 or It is slidably supported. The thread guide mechanism 12 includes a traverse device 15 by which the location of the supply of the yarn 2 to the spool 4 within the angular range 16 can be changed with respect to the longitudinal axis of the spindle 6. It is possible to change the alignment in the circumferential direction of the yarn 2 when the is placed on the bobbin 4. Furthermore, the thread guide mechanism 12 is provided with an upper thread guide roller 17 in the region of the traverse device 15, which thread guides the thread regardless of the angle in the angle range 16 and conforms to the work of the axial thread guides on both sides. It is oriented in the direction of the axis 36 according to the reference. Further, a lower thread guide roller 18 is provided, and this thread guide roller is oriented parallel to the longitudinal axis of the spindle 6 and is displaced and oriented as shown in FIG. The mounting surface is used as a work standard in the fan-shaped unfolded state of the yarn 2 and / or the supply state of the yarn 2 with respect to the pressure contact roller 19 that is oriented in a substantially vertical direction in FIG. Work like this.

  A pressure contact roller 19 is supported below the thread guide mechanism 12 so as to be rotatable relative to the thread guide mechanism. The longitudinal axis of the pressure contact roller is oriented parallel to the longitudinal axis of the spindle 6. Yes. Following the lower thread guide roller, the thread is guided around the pressure roller 19 over a partial circumferential angle. The yarn contacts the jacket surface 32 of the bobbin 4 within the contact area of the pressure roller 19.

In the embodiment shown, the actuator 20 is formed as an adjustment cylinder which is actuated by pneumatic pressure which is loaded via a pressure medium conduit 21. The actuator 20 forms a pendulum support 22. This pendulum support 22 is pivotally attached to the support frame 24 of the winder 1 fixed to the housing in the end region 23, in which case the pendulum support 22 is shown in FIG. Can be pivoted about an axis that is oriented in a direction perpendicular to the plane. Opposing end regions 37 of the pendulum support 22 are pivotally attached directly or indirectly to the thread guide mechanism 12, adjacent to the guide 13 in this embodiment. For a degree of freedom of 14, the pendulum support forms an angle α. By selecting the pivot points 33 and 34 of the pendulum support 22, the angle α can be changed from the initial angle α ₁ to the angle α ₂ as the diameter of the bobbin 4 increases. In this case, α ₁ > α ₂ . If the symbol F _N represents a normal force equal to the force of the actuator 20 with respect to the embodiment shown in the drawing in the pendulum support 22, the component force F _FHG acting in the direction of 14 degrees of freedom is given by the formula F _FHG = F _N (cosα)
It is obtained by.

Regarding the change of the angle from the angle α ₁ to the angle α ₂ , the change of the component force acting in the direction of the degree of freedom 14 is expressed by the equation ΔF _FHG = F _N (cos α ₂ -cos α ₁ )
It is obtained by.

Therefore, the component force F _FHG acting on the thread guide mechanism 12 depends on the movement in the direction of the degree of freedom 14, and therefore also depends on the distance between the pressure roller 19 and the spindle 6. The component force F _H not acting in the direction of the degree of freedom 14 is expressed by the formula F _H = F _N sin α
It is obtained by.

The component force F _H not acting in the direction of the degree of freedom 14 is received by the guide 13 in the illustrated embodiment.

For a given lift in the direction of the degree of freedom 14 of the thread guide mechanism 12, the change in the component force ΔF _FHG is made by adjusting the basic geometry, ie the pivot points 33, 34 of the pendulum support 22 It is possible by changing. With this adjustment, the work area shifts to the cos-function described above. When the work area of the winder 1 is on the circumferential surface at the angle α = 0, the dependency of the component force F _{FHG on} the _lifting of the bobbin is minimized, while the work area on the circumferential surface at the angle α = 90 ° is reduced. For other theoretical limit situations, the change in component force F _FHG is greatest.

  In order to allow adjustment, as many pivot points 34 as possible are provided in the machine frame 24 so that adjustment is possible by means of a large number of holes 25, for example for the pendulum support 22.

  The actuator 20 extends on the side opposite to the bobbin 3 of the revolver head 5, particularly covered with a mechanical substrate. As is clear from FIG. 2, the degrees of freedom 14 may be inclined with respect to the vertical line. If the basic principle according to the present invention is not lost by such a configuration, it is possible to orient the angle α (in contrast to the scale of the angle α shown in FIGS. 1 and 3) in any solid direction. is there.

  FIG. 5 illustrates a pressurizing unit 26 that serves to actuate the pressure medium conduit 21. The pressurizing unit 26 supplies the pressure medium 27 under the working pressure. The pressurizing unit 26 comprises a control valve 28 and a switching device 29 which is operated pneumatically and is appropriately controlled by a control conduit 32 via a control unit and adjustment unit 30. When the switching device 29 is appropriately switched by the control unit / adjustment unit 30 via the switching conduit 35, the valve 28 undergoes a detouring action so that the pressure roller 19 can be lifted completely. Reference is made to EP 1 213 246 for alternative arrangements for preparing and adjusting the pressure medium and for adjusting the pressure of the pressure medium.

  This winder is used in particular for producing cross bobbins, and the yarns arriving for the cross bobbins traverse along the longitudinal axis of the bobbin by means of a traverse thread guide mechanism. The wound yarn 2 is in particular a carbon fiber material, for example a carbon fiber strip material. In the illustrated embodiment, the angle of the traverse thread guide mechanism does not change with respect to the yarn supplied during the winding stroke.

The pressure contact force of the pressure roller 19 against the bobbin 4 is obtained from the vector sum of gravity of the thread guide mechanism 12 and possibly additional structural members, and from the component force F _FHG of the actuator 20 in the direction of 14 degrees of freedom. . If the degree of freedom 14 is not oriented in the vertical direction, a suitable reduction to the vertical of the pressure force over the cos of the angle of freedom 14 is made.

  The winder according to the present invention provides a good traverse motion during yarn winding, avoids entanglement of the yarn during winding, disturbance of the yarn winding layer, and avoids incorrect orientation of the yarn to the yarn winding layer. Is done.

It is the side view shown in the partial cross section of the winder by this invention. FIG. 2 is a cross-sectional view along the cutting line ll-ll of the winder according to FIG. 1. It is a figure of the actuator formed as a pendulum-like support body which acts on the press-contact force between a bobbin and a press-contact roller. It is the fragmentary sectional view cut | disconnected and shown by the horizontal direction with respect to the longitudinal axis of the winder provided with a press-contact roller, a thread guide mechanism, and a traverse thread guide mechanism. FIG. 2 is a principle diagram of a pneumatic structure group for preparing a (sufficient) constant air pressure for an actuator formed as a pneumatic cylinder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Winder 2 Thread 3 Bobbin 4 Bobbin 5 Revolver head 6, 7 Spindle 8, 9 Drive unit 10, 11 Tube 12 Thread guide mechanism 13 Thread guide 14 Degree of freedom 15 Traverse device 16 Angular range 17 Upper thread guide roller 18 Lower Thread guide roller 19 Pressure roller 20 Actuator 21 Pressure medium conduit 22 Pendulum support 23 End region 24 Machine frame 25 Hole 26 Pressure unit 27 Pressure medium 28 Control valve 29 Switching device 30 Control unit and adjustment unit 31 Control conduit 32 Jacket surface 33, 34 pivot point 35 detour conduit 36 axis 37 termination region

Claims (6)

A winder (1) for winding up a wound object or a thread (2) onto a bobbin (4),
a) at least one spindle (6),
b) It has a pressure roller (19),
ba) The spacing of the pressure roller (19) from the spindle (6) can be changed according to the degree of freedom (14), and bb) the pressure roller is placed on the jacket surface (32) of the bobbin (4). Pressure welding is possible,
c) In this case, the bobbin (4) can be driven in translation, and the yarn (2) is brought into contact with the bobbin (4) in the contact area between the pressure roller (19) and the bobbin (4). Is available,
d) At least one actuator (20) is provided, and the force of this actuator (20) acts at least on the pressure contact force in the spool (4) of the pressure roller (19),
e) The actuator (20) generates a constant force (F _N ), and f) Only the component force (F _FHG ) of the force (F _N ) of the actuator (20) acts in the direction of the degree of freedom (14). The ratio of this component force (F _FHG ) acting in the direction of this degree of freedom (14) to the force (F _N ) of the actuator (20) is the distance between the spindle (6) and the pressure roller (19). Depending on the style,
In the winder (1) for winding the wound object or the yarn (2) onto the bobbin (4),
The degree of freedom (14) is a linear degree of freedom, and the actuator (20) acts on the normal force (F _N ) in the pendulum support (22). At this time, the pendulum support (22) Is inclined at an angle α with respect to the degree of freedom (14), the angle α being dependent on the distance between the spindle (6) and the pressure roller (19). Winder (1) according to claim 1, characterized in that the actuator (20) is an adjustment cylinder which operates under the action of a pressure medium. Winder (1) according to claim 1 or 2, characterized in that the position of at least one attachment point (33; 34) of the pendulum support (22) is changeable. Winder (1) according to any one of claims 1 to 3, characterized in that the actuator (20) is formed as an adjustment cylinder actuated by pneumatic pressure. The actuator (20) is connected to the control unit / adjustment unit (30), and the control and adjustment of the actuator (20) are configured to obtain a constant force via these units. Winder (1) according to any one of the preceding claims. Pressure is applied to the adjusting cylinder operated by air pressure via the adjusting valve (28), and this adjusting valve is configured to guarantee the action on the adjusting cylinder with a constant pressure. Winder (1) according to claim 4.

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