Spinning unit device with capsule

Abstract

To achieve a complete covering of a spindle or a winding body, which allows easy access to the spindle, and which can be integrated into a structural type of a conventional ring spinning machine.SOLUTION: A spinning unit device 10 for a ring spinning machine includes: a spindle 20 for a bobbin which is fastened in a rotationally drivable manner on a spindle table 2; and a capsule 50 which extends in a longitudinal direction of the spindle and encloses the bobbin, the capsule connected to the spindle table. In the spinning unit device, the capsule is divided in a longitudinal direction and has a rear side capsule wall 51 and a front side capsule wall 52, and the front side capsule wall can be moved into an open position, so that in the open position, the bobbin of the spinning unit device is accessible for operation.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a spinning unit device for a ring spinning machine, including a spindle for a winding body, which is rotatably mounted on a spindle base, and a capsule extending in the longitudinal direction of the spindle and surrounding the winding body.

[0002] Background Art Machines for the spinning process with closed ends and true twist, such as ring spinning, hopper spinning, loop spinning, spinning with a rotating ring, spinning with a floating ring, spinning with any kind of balloon limitation (balloon reduction such as multi-balloon, stationary and movable balloon limiting sleeves, spinning crowns, spinning fingers, balloon limiting rings, etc.), centrifugal spinning, Murano spinning (Muranospinnen) are generally known.

[0003] Such machines usually have a number of spinning units arranged side by side, and these spinning units are also moved in the same or similar forms to each other. These spinning methods can likewise be used for twisting, but will not be described in more detail in this regard. Thread is a superordinate concept for spun yarn, filament and twisted yarn. Hereinafter, usually, "spun yarn" and "spinning" will be the topic. However, it is clear to those skilled in the art that this concept can also be applied to "thread" and "twisting".

[0004] Today, many ring spinning machines that rotate at high speed are already operated at a cost-optimal speed based on the production per spindle hour and the energy consumption. The cost decreases linearly with the increase in production, and the energy consumption increases exponentially with an exponent of about 2 - 4, usually about 3.2 - 3.4.

[0005] The reason for the exponential increase in energy consumption is that in closed-end and single-pass spinning methods, the winding bobbin must necessarily rotate on the machine (otherwise, the machine would have to rotate around the bobbin). The winding body, usually in the form of a cup, acts as a ventilator in this case.

[0006] Capsules are known for energy savings by reducing the mass of air to be accelerated. The cup and / or thread balloon are usually covered by a cylindrical sleeve whose diameter is only a few millimeters larger than the cup or balloon. This works, but it prevents access to the cup in various operating conditions, such as when removing or splicing threads.

[0007] A special form of the balloon capsule is a balloon limiting sleeve, as described, for example, in German Patent Application Publication No. 1510657 or German Patent Application Publication No. 19848752.

[0008] The bobbin or cup rotates along the axis of the spindle and is coupled to the spindle, for example, by a friction coupling. The spindle may be driven by a belt drive or by individual motors. There are many support variations, ideally independent of the capsule. The spindle is usually mounted on a spindle stand. The spindle stand may be configured to be fixed or movable in the axial direction of the spindle.

[0009] Furthermore, relative motion in the axial direction of the bobbin (or spindle) must be realized between the bobbin (or spindle) and the mechanism for defining thread movement, so that all threads are not wound as raised portions at the same location, but rather wound in a bobbin structure that can be defined by relative motion (for example, as a cup winding).

[0010] The mechanism for moving the yarn is, for example, a ring and traveler, a cap edge or hopper edge during cap spinning, hopper spinning, or loop spinning, or a yarn guide, yarn guide tube, or similar during hopper spinning or Murano spinning.

[0011] The elements that move the thread are usually mounted side by side on a single long element, which is called, depending on the element, for example, a ring stand, hopper rail, cap rail, thread guide rail, or thread guide frame.

[0012] This relative motion can be achieved by the mutual movement of one or both elements. In widely used conventional ring spinning machines, the ring stand is moved, while the spindle stand is fixed to the machine frame.

[0013] If the spindle is currently covered, it must either allow for relative motion of the thread movement within the covered region, or eliminate a large portion of the capsule, thus saving energy.

[0014] The capsule can be mounted on a ring stand, as described in Swiss Patent Invention No. 683349 (and German Patent Application Publication No. 1510657 or German Patent Application Publication No. 19848752), and in this embodiment, only a specific small portion of the spinning area is covered. Energy savings are minimal.

[0015] Chinese Utility Model No. 209957949 describes an incomplete capsule, which is mounted on the underside of a ring base but is moved above a spindle equipped with an individual motor drive. This capsule is incomplete, the spindle is relatively unstable, and the gap in the outer traveler cannot be kept constant by the precession of the spindle.

[0016] Swiss Patent No. 706759 describes a capsule that completely and efficiently covers a cup on the underside of a ring base, but the spindle's drive and support structures are of an inconvenient length for the spindle to enter the capsule.

[0017] German Patent Application Publication No. 1685679 describes two distinct capsule variations that can be shortened, but these capsule variations do not have an energetically optimal diameter over their entire length, nor are they stable, fouling resistant, or easily cleanable. Furthermore, these capsule variations are not easily accessible.

[0018] European Patent Application Publication No. 3483313 describes a movable spindle stand in which the spindle runs into a capsule. Here again, a cumbersome, long spindle configuration is required.

[0019] International Publication No. 2020105006 describes a magnetically supported, long spindle suitable for running into a capsule mounted on a ring stand. The effort required to use the capsule is significantly greater.

[0020] Swiss Patent No. 715908 describes a multi-balloon method comprising a fixed ring stand and a movable spindle stand that allows multiple balloons to be kept constant. However, the considerable effort and significant structural height required to cover the balloons above the ring stand and the cups below the spindle are recognized. Similarly, energy savings are reduced by the large volume of rotating air.

[0021] Japanese Patent Publication No. 2013-170337 describes a spinning machine in which a capsule is fixedly mounted on a spindle base. The capsule has a slit formed in it, and the functional part of the ring base is oriented inward into the machine and mounted on the rear side of the capsule, so that the ring holder engages with the ring base from the outside through the slit, and the ring is guided axially within the capsule. The machine structure is substantially conventional, and the capsule is only tall enough to be necessary for its function, but apart from other drawbacks, access to the spinning unit is particularly poor. This spinning machine is difficult to operate in certain operating conditions. In any case, the spinning unit must be stopped and made accessible in certain operating conditions such as yarn breakage, or when starting spinning on an empty winding.

[0022] Chinese Utility Model No. 210194054 describes a solution to the problem of integrating yarn guides, guiding the spinning ring to be held externally by magnets within a capsule without the need for slits. The yarn guide is integrated within the cover, and the structural height is optimized. This capsule rotates, and the capsule itself would require a cover for energy reduction purposes. The technical effort is significant. The spinning unit is extremely difficult to access.

[0023] In conventional ring spinning machines, during yarn splicing, a yarn piece already positioned on the bobbin or attached to the bobbin for splicing is inserted upward through the yarn guide mechanism, the spindle is started, and the yarn end is brought into contact with a fiber running out of the drafting device, thereby twisting and joining the new fiber with the old yarn piece. This can be done, for example, by rotation at the outlet of the drafting device or by storage at the outlet roller. Subsequently, the normal spinning process begins, in which the supplied fiber is twisted a specified number of times for each length of yarn.

[0024] However, the spindle must inevitably be started with a fully twisted yarn. During the time that the splicing process is still ongoing, the yarn is constantly being twisted further into the same piece of yarn. This can lead to the yarn becoming over-twisted and breaking if the splicing is too slow or the spinning speed is too fast.

[0025] Disclosure of the invention The object of the present invention is to enable complete covering of the spindle or winding body, allowing for easy access to the spindle, and enabling integration into the structural form of a conventional ring spinning machine. Another object is to enable access with simple operation of individual spinning units, particularly in the event of yarn breakage. In particular, it is desirable to enable the resolution of yarn breakage in the usual 6-10 seconds today.

[0026] This problem is solved by a spinning unit apparatus having the features described in claim 1. The spinning unit apparatus for a ring spinning machine includes a spindle for a winding body (i.e., an empty winding tube or a bobbin with wound yarn) and a capsule extending longitudinally from the spindle and surrounding the winding body, the capsule being coupled to the spindle base. The capsule is divided longitudinally and has a rear capsule wall and a front capsule wall on the operator side. The front capsule wall is movable to an open position, thereby providing access for operation of the winding body of the spinning unit apparatus in the open position.

[0027] In some embodiments, the front capsule wall is pivotably coupled in the lower region and preferably pivotable to a horizontal position. Alternatively, the front capsule wall can be brought to the open position by linear motion, by pivoting around the spindle axis, or by sliding motion, etc.

[0028] The present invention has the advantage that the capsule can be opened extremely easily. In a ring spinning machine, the rotational axis of the spindle of an individual spinning unit extends in the vertical direction. The spindle is supported on a spindle base at its lower end so as to be rotatable. By the front capsule wall on the operator side being rotatably supported at the lower end, when this front capsule wall pivots outward from the vertical closed position to the horizontal open position, it can surely ensure the accessibility from the front, that is, from the operator side of the ring spinning machine, to the take-up body, whereby mechanical splicing of the yarn or automatic or manual operations at the time of yarn breakage can be made possible in a trouble-free manner. Such a capsule is also suitable for being retrofitted to an existing spinning machine.

[0029] In some embodiments, the rear capsule wall may be fixedly coupled to the spindle base, and the front capsule wall may be pivotally coupled to the rear capsule wall. For this purpose, the rear capsule wall may have, for example, two legs arranged laterally and protruding forward, and in these legs, the front capsule wall is pivotally held, for example, by a shaft. Alternatively, the front capsule wall may be pivotally coupled to the spindle base or a holder attached to the spindle base.

[0030] In some embodiments, the rear capsule wall and the front capsule wall may each be formed as a partial shell, and these partial shells are preferably coupled to each other by a hinge in the region of the spindle base. Together, these partial shells surround the spindle axis by 360°. The partial shells may each be configured as two half-shells surrounding 180°. Other divisions are similarly conceivable.

[0031] In some embodiments, the spinning unit device may further have a spindle brake, which is operable by the opening of the capsule to brake the spindle or the take-up body. Such a mechanical spindle brake is often necessary because the take-up body cannot be braked by hand anymore based on its high rotational speed. A highly reliable and rapid braking is also necessary, for example, to overcome a thread break in the shortest possible time.

[0032] The spindle brake is known per se and is usually designed to be operated by the operator's knee, whereby both hands are free for overcoming a thread break.

[0033] In some embodiments, the front capsule wall may have a brake operating device, which actuates the spindle brake by the movement of the front capsule wall to the open position. This has the advantage that the spindle or the take-up body is braked simultaneously with the opening of the capsule. The cumbersome braking using the knee can be omitted. As soon as the capsule is fully opened, the take-up body is also braked and the thread end can be inserted accurately again and joined to the fiber bundle. When the capsule is closed, the corresponding spindle brake is released and the spinning process is continued.

[0034] In some embodiments, the braking force of the spindle brake may be controllable, preferably continuously controllable. With a controllable braking force, the spindle can be braked quickly or slowly to a standstill as required. Conversely, the start of the spindle can be adjusted by closing the capsule or the front capsule wall, whereby the spindle has the rotational speed required for knotting the thread.

[0035] In some embodiments, the braking force of the spindle brake can be increased to the maximum braking force as the degree of capsule opening increases. The spindle brake can be operated via a brake operating device attached to the front capsule wall by opening or rotating the front capsule wall outward. The spindle brake and brake operating device may be configured such that the braking force increases as the degree of capsule opening increases. During opening, the spindle or winding body is braked. Conversely, when the capsule is closed, the braking force decreases, and the spindle or winding body begins to rotate again. The front capsule wall acts like a brake lever to adjust the rotational speed of the spindle. This allows for adjustment of the spindle's start, especially when the capsule is closed, thereby achieving the optimal rotational speed for twisting the yarn at the end of yarn breakage overcoming. As soon as the capsule is completely closed, the spindle rotates again at the operating speed, and the spinning process continues.

[0036] In some embodiments, the spindle brake may be located between the winding body and the warb, or between the warb and the winding support.

[0037] In some embodiments, the spindle brake may be configured in the form of a clamp or tongs. The clamp may have a first brake lever and a second brake lever, which are connected to each other via a hinge. Furthermore, one of these brake levers may be configured to be spring-elastic. Clamp jaws for braking the spindle may be formed at one end of each brake lever, and these clamp jaws are mounted around the spindle for this purpose. The other end of each brake lever may be configured such that a brake operating device can be introduced between the two brake levers and pushes these ends of the brake levers apart. The clamp jaws are pressed together and the spindle is braked.

[0038] In a clamp or tong-type spindle brake, both brake levers may have angled contact surfaces at the end where the brake operating device is introduced (i.e., the end opposite the spindle), and these contact surfaces approach each other toward the hinge. This allows the braking force to be increased as the degree of capsule opening increases or as the brake operating device is introduced between the brake levers. From a predetermined introduction depth, both contact surfaces may extend parallel to each other, thereby maintaining, but not increasing, the braking force when the brake operating device is further introduced. This is particularly advantageous when the additional spindle separation device described later is used.

[0039] For example, another configuration of the spindle brake is possible, which includes a brake jaw and slide guide for the capsule's brake operating device. The slide guide may be configured such that the braking force increases depending on the degree of capsule opening and, in some cases, is maintained constant from a specified degree of opening.

[0040] A spinning unit apparatus may be provided with individual spindle drive units, or one drive unit may drive multiple spinning unit apparatuses, for example, via a drive belt.

[0041] In some embodiments, the spinning unit apparatus may have individual spindle drive units. These individual spindle drive units are controllable by opening and closing capsules (similar to the spindle brakes described). For this purpose, the spinning unit apparatus may be provided with a drive control unit, which is operable by opening and closing capsules. Opening the capsules can reduce the rotational speed of the drive units or completely switch off the drive units. Conversely, closing the capsules can increase the rotational speed of the drive units or switch them back on. The control devices may be configured mechanically and / or electronically.

[0042] In some embodiments, the spinning unit apparatus may have a spindle separator, which separates the drive element of the ring spinning machine from the spindle by opening the capsule, preferably when the front capsule wall rotates outward to the open position. The drive element may be a drive belt that contacts the spindle warp to drive the spindle. Such a spindle separator is advantageous in preventing overheating of the braked spindle, for example, by the drive belt that continues to run.

[0043] In some embodiments, the spindle separator may have a separator roller, which is supported to move in the direction of the drive belt, so that the separator roller presses the drive belt away from the warp when the spindle separator is operated. When the capsule is opened, the drive belt is correspondingly separated from the spindle, making it easier to brake the spindle.

[0044] The separation or disconnection of the drive unit is particularly advantageous when the spinning unit must be shut down for a relatively long period of time due to a defect.

[0045] In some embodiments, the spindle brake and the spindle separator or drive control unit may be combined with each other. Preferably, the spindle brake and the spindle separator or drive control unit may be configured such that, upon opening the capsule, preferably when the front capsule wall rotates outward to the open position, the spindle brake is first operated to its maximum braking force, and only then is the drive element of the ring spinning machine separated from the spindle. Conversely, the spindle brake and the spindle separator or drive control unit may be configured such that, upon closing the capsule, the drive element of the ring spinning machine is first connected to the spindle, and then the spindle brake is released.

[0046] In some embodiments, the front capsule wall may have an operating arm for operating a spindle separator or drive control unit. The separator roller may be mounted, for example, on a horizontally guided carriage, which is operable by a toggle lever. The operating arm acts on the toggle lever when the front capsule wall is swung outward, thereby separating the drive element. The operating arm may be configured to act on the spindle separator only when the capsule is nearly completely open, so that the spindle is separated only after its braking. This is particularly advantageous to ensure that when the capsule is closed, the spindle is first coupled to the drive element and then the braking force is released, thereby allowing for reliable adjustment of the braking force or gradual release of the braking force during closure.

[0047] The combination of a capsule and a spindle brake that is adjustable depending on the degree of capsule opening can be considered an independent invention. Similarly, the stepwise adjustment of the spindle brake itself can be considered an independent invention. The spindle separator can be considered an independent invention, either on its own or in combination with a capsule with or without a spindle brake.

[0048] Similarly, another embodiment of the present invention is conceivable in which a mechanical brake (for rapid and strong braking) or drive control of a drive unit acts on a spindle driven by an individual motor.

[0049] However, what all configurations have in common is the braking of the spindle by opening the capsule of the spinning unit, and the controllable speed of the spindle, at least during startup, due to the open state of the capsule.

[0050] The present invention further relates to a ring spinning machine equipped with the aforementioned number of spinning unit devices.

[0051] The present invention will be described in detail below with reference to the drawings. [Brief explanation of the drawing]

[0052] [Figure 1] This is a side view showing a spinning unit apparatus equipped with capsules, with (a) shown in the closed position and (b) in the open position. [Figure 2] This is a front view showing the front capsule wall equipped with a brake operating device. [Figure 3] This is a diagram showing a spindle brake. [Figure 4] This diagram shows a spindle separation device, with (a) showing the connection position and (b) showing the separation position.

[0053] In the drawings, the same reference numeral is used for identical elements, and unless otherwise explicitly stated, the first description applies to all drawings.

[0054] Modes for carrying out the invention Figure 1 is a schematic side view of the spinning unit 10 of the ring spinning machine 1, where (a) shows the capsule in the closed position and (b) shows the capsule in the open position.

[0055] In the spinning unit 10, yarn 12 is spun from the fiber bundle 11 and wound onto a rotating winding body 13 or spinning cup. For this purpose, the winding body 13 is mounted on a rotatable spindle 20. During the spinning process, the fiber bundle 11 passes through a drafting device 7, is then twisted into yarn 12, and wound onto the winding body 13. To position the yarn 12 on the winding body 13, the yarn 12 is guided by a ring traveler 31 that rotates on the spinning ring 30. A yarn guide 40 is positioned above the spindle 20 or winding body 13 to guide the yarn 12. The radial extension of the yarn balloon 14 formed during winding can be limited by a balloon limiter 41 or balloon limiting ring. Therefore, the balloon limiter 41 is positioned between the spinning ring 30 and the yarn guide 40. The ring spinning machine 1 typically has a number of spinning units 10 arranged side by side.

[0056] The spinning rings 30 of the spinning unit 10 are positioned on a ring base 3 that extends longitudinally in the ring spinning machine 1. The balloon limiters 41 of the spinning units 10, which are positioned side by side, are adjustablely positioned on a crossbar 4 that extends longitudinally in the ring spinning machine 1. Accordingly, the yarn guides 40 of the spinning units 10, which are positioned side by side, are adjustablely positioned on a crossbar 5 that extends longitudinally in the ring spinning machine 1.

[0057] The spindles 20 of these spinning units 10 are positioned on a spindle base 2 that extends longitudinally in the ring spinning machine 1. The spindles 20 of the spinning unit 10, as illustrated in this embodiment, include a warb 21 and a spindle bearing 22 at their lower ends, and the spindle bearing 22 rotatably supports the spindle 20 on the spindle base 2. The spindles 20 are driven via a tangential belt 6, which can drive multiple spinning units and is pressed against the warb 21 of the spindles 20. Other drive devices are also possible.

[0058] Furthermore, Figure 1(a) shows the capsule 50 of the spinning unit device 10 in the closed position.

[0059] The capsule 50 is formed from two capsule walls in the form of a partial shell, divided axially. The rear capsule wall 51 is coupled to the spindle base 2 and is either fixedly mounted relative to the spindle or fixedly but removablely mounted. The front capsule wall 52, on the operator side, can be opened, for example, by pivoting around a hinge 54 having an axis located in a plane perpendicular to the spindle axis or the capsule axis. In the illustrated embodiment, the hinge 54 is located on two lateral legs 53 of the rear capsule wall 51, which project forward beyond the front capsule wall 52.

[0060] Furthermore, in the illustrated embodiment, a spindle brake 60 is schematically shown, which in this embodiment is located immediately below the winding body 13 and above the warp 21 of the spindle 20.

[0061] For the operation and control of the spindle brake 60, the front capsule wall 52 has a brake operating device 55. In this embodiment, this brake operating device 55 is implemented in the form of an operating arm 56 having a ball 57 formed at its free end.

[0062] The front capsule wall 52 has a defined terminal position in the closed state. Means are provided for moving the yarn axially along the spindle 20 or winding body 13, for example, in the form of a spinning ring 30 and a ring traveler 31. These means may be, for example, a slit with a ring holder provided in the rear capsule wall 51, or, for example, a magnetic guide for the spinning ring 30.

[0063] Figure 1(b) shows the spinning unit apparatus shown in Figure 1(a) with the capsule 50 in the open position. The front capsule wall 52 is pivoted forward and downward around the hinge 54, so that the front capsule wall 52 is in a nearly horizontal position. This allows free access to the winding body 13 for operation. The front capsule wall 52 can be easily moved from the closed position to the open position by hand (or by a robot).

[0064] A brake operating device 55 is attached to the lower end of the front capsule wall 52. When the front capsule wall 52 rotates outward, the brake operating device 55, and in the illustrated embodiment, the ball 57 of the brake operating device 55, are introduced into the spindle brake, thereby braking the spindle. Other configurations of the brake operating device are also possible.

[0065] Figure 2 shows a front view of the front capsule wall 52, which is equipped with a brake operating device 55 configured as an operating arm 56 and a ball 57.

[0066] Figure 3 shows a view of the spindle brake 60 from above. In the illustrated embodiment, the spindle brake 60 is formed as a clamp or tong and has a first brake lever 61 and a second brake lever 62. The two brake levers 61 and 62 are connected to each other via a hinge 63. Each brake lever 61 and 62 has one brake jaw or clamp jaw at one end, which is mounted around the spindle 20 of the spinning unit device 10. When the spindle brake 60 is operated, the clamp jaw is pressed against the spindle 20, braking the spindle 20.

[0067] The other end of each brake lever 61, 62 may be formed such that a brake operating device 55 can be introduced between the two brake levers 61, 62, and that the ends of the brake levers 61, 62 are pushed apart from each other. In this case, the clamp jaws are pressed together to brake the spindle.

[0068] In other words, the spindle brake 60 can be operated by a suitable brake operating device 55 in the form of, for example, a wedge, a ball 57, a cylindrical body, or another suitable shape, and its braking force can be controlled in a stepless manner, either open-loop or closed-loop. The gap shown between the brake levers 61, 62 is formed in a wedge shape and straight, in which case the wedge shape may have a different angle or any wedge-shaped curved contour so that the braking action can be adjusted depending on the operating path or turning angle.

[0069] One of the brake levers, in this case the second brake lever 62, is formed to be spring-elastic by having two parts connected, for example, via a spring member 64. The spring member 64 may be made of spring steel.

[0070] As the front capsule wall 52 rotates outward, the ball 57 of the brake operating device 55 is introduced increasingly deeper into the gap between the two brake levers 61 and 62. To gradually increase the braking force depending on the degree of opening of the capsule 50, both brake levers 61 and 62 each have contact surfaces 65 for the ball 57 of the brake operating device 55 at the end opposite the spindle, and these contact surfaces 65 approach the hinge 63 so that a tapering gap is formed between the brake levers 61 and 62 into which the ball 57 is introduced. As the depth of introduction increases, the ends of the spindle brake 60 opposite the spindle are pushed apart from each other, and the clamp jaws are pressed against the spindle 20. In this case, the braking force increases.

[0071] From a specified engagement depth, the brake lever may have contact surfaces 66 for a braking force that is maintained at a constant level, and these contact surfaces 66 extend substantially parallel to each other when the brake operating device 55 is engaged. This allows the capsule 50 to be brought to the fully open position after it has already formed maximum braking force in the partially open position. In this case, the braking force is maintained at a constant level.

[0072] Therefore, in other words, the opening of the capsule 50 guides the brake operating device 55 to a defined entry depth on the contact surface 65 for increasing braking action. Subsequently, the brake operating device 55 is guided on the contact surface 66 for braking action, which is kept constant, until the capsule is fully opened. This allows the spindle brake to be easily adjusted by pivoting the front capsule wall 52 inward and outward. This is particularly advantageous when an additional spindle separator 70 is used, as will be explained below in Figure 4.

[0073] Furthermore, a locking position is provided that allows the spindle brake 60 to be held closed without the need to hold the brake operating device 55. This locking position may be formed in the center of the gap or at the edge of the gap. Numerous embodiments are possible in this regard as well.

[0074] The brake is configured here as "tongs," which close when the two operating levers are pushed apart from each other and do not contact the spindle during normal spindle operation. A spring is provided for this purpose, which brings the brake tongs into this position and holds them in place, and this can also be achieved by a different set of embodiments of the tongs. For example, the tongs can be configured as an elastomer or at least partially elastic plastic member to perform the same function.

[0075] Alternatively, the spindle brake may be configured to close when the brake levers are pressed together. In this case, the brake levers must be pressed together by appropriate opposing members of the brake operating device. For example, the wedge shape of the gap between the brake levers may also be incorporated into the brake operating device. Similarly, only one of the brake levers, or one of the brake jaws, may be fixed in place, while only the other brake lever is operated.

[0076] Figure 4 shows a schematic diagram of the spindle separator 70, in the connected position (a) and the separated position (b). The front capsule wall 52 has a fixedly connected operating arm 58 for the spindle separator 70. In Figure 2, the operating arm 58 for the spindle separator 70 is shown by a dashed line. The operating arm 58 is offset from the spindle 20 in the horizontal longitudinal direction of the ring spinning machine, so that the operating arm 58 can operate the spindle separator 70 which is located next to the spindle 20.

[0077] In the illustrated embodiment, the spindle separator 70 has a carriage 72 that is linearly guided on a spindle base 2. Separation rollers 71 are mounted on the carriage 72, with a vertical axis of rotation (the axis of rotation is parallel to the spindle axis). The carriage 72 is coupled to the spindle base 2 or a guide plate for the carriage 72 via a toggle lever 73. Operation of the toggle lever 73 causes linear movement of the carriage 72 with the separation rollers 71.

[0078] The spindle separation device 70 is positioned such that the separation roller 71 lifts the drive belt 6 away from the spindle 20 (or the warp 21 of the spindle 20) when the toggle lever 73 is operated (see Figure 4(b)), thereby preventing the spindle 20 from overheating in a braking state. This is particularly advantageous at relatively high spindle speeds and when transmitting relatively large power.

[0079] To operate the toggle lever 72 or the spindle separator 70, the front capsule wall 52 has an operating arm or operating lever 58 that is coupled to it so as not to rotate relative to it. When the operating arm 58 is removed from the toggle lever 73, the drive belt 6 returns the separator roller 71, carriage 72 and toggle lever 73 to their starting positions. This process can be assisted by an appropriate mechanism, such as a spring, which has a defined end position but can restrict the movement so that the carriage 72 can be removed.

[0080] To remove the separation roller, other operating mechanisms for the separation roller are also possible, such as an eccentric or partially eccentric design. However, all solutions share the common feature of lifting the drive belt from the spindle. [Explanation of symbols]

[0081] 1. Ring spinning machine 2 Spindle stand 3 Ring stand 4. Crossbar (Balloon Limiter) 5 Crossbar (thread guide) 6. Drive element / tangential belt 7. Fume hood 10 Spinning Unit / Spinning Unit Equipment 11 Fiber bundles 12 threads 13. Winding mechanism / spinning cup 14 String Balloons 20 spindles 21 Warb 22 Spindle bearings 30 Spinning Rings 31 Ring Traveler 40 thread guide 41 Balloon limiter 50 capsules 51 Rear capsule wall 52 Front capsule wall 53 Legs 54 Hinge / Rotation Axis 55 Brake operating device 56 Operating Arm 57 Ball 58 Operating arm for spindle separation device 60 Spindle Brake 61 First brake lever 62. Second brake lever 63 Hinge 64 Spring component 65 Contact surface for increased braking action 66 Contact surface for a specific braking action 70 Spindle Separator 71 Separation Roller 72 Carriage 73 Toggle lever

Claims

1. A spinning unit device (10) for a ring spinning machine (1), comprising a spindle (20) for a winding body (13) mounted on a spindle base (2) so as to be rotatable, and a capsule (50) extending in the longitudinal direction of the spindle (20) and surrounding the winding body (13), the capsule (50) being coupled to the spindle base (2), The spinning unit device (10) is characterized in that the capsule (50) is divided in the longitudinal direction and has a rear capsule wall (51) and a front capsule wall (52), and the front capsule wall (51) is movable to an open position, whereby the winding body (13) of the spinning unit device (10) is accessible for operation in the open position.

2. 2. The spinning unit device according to claim 1, wherein the front capsule wall is pivotably connected in a lower region and can be pivoted, preferably into a horizontal position.

3. 3. The spinning unit device according to claim 2, wherein the rear capsule wall (51) is fixedly connected to the spindle base (2) and the front capsule wall (52) is pivotally connected to the rear capsule wall (51).

4. 4. A spinning unit device according to claim 1, wherein the rear capsule wall (51) and the front capsule wall (52) are each formed as partial shells, which are preferably connected to one another by a hinge (54) in the region of the spindle base (2).

5. 4. The spinning unit device according to claim 1, further comprising a spindle brake, the spindle brake being operable by opening the capsule to brake the spindle or the winding body.

6. 5. The spinning unit device according to claim 4, wherein the front capsule wall (52) has a brake operating device (55), and the brake operating device (55) activates a spindle brake (60) of the spinning unit device (10) upon movement of the front capsule wall (52) to the open position.

7. A spinning unit device as described in claim 4, wherein the braking force of the spindle brake (60) of the spinning unit device (10) is controllable, preferably steplessly controllable.

8. A spinning unit device as described in claim 4, wherein the braking action of the spindle brake (60) of the spinning unit device (10) increases to a maximum braking action as the degree of opening of the capsule (50) increases.

9. A spinning unit device as described in claim 4, wherein the spindle brake (60) of the spinning unit device (10) is configured in the form of a clamp.

10. 4. The spinning unit device according to claim 1, wherein the spinning unit device has individual spindle drive units, which can be controlled by opening and / or closing the capsules.

11. 4. The spinning unit device according to claim 1, further comprising a spindle separating device, which separates the drive element of the ring spinning machine from the spindle when the capsule is opened.

12. 12. A spinning unit device according to claim 11, wherein the drive element (6) is a drive belt which contacts the weave (21) of the spindle (20) to drive the spindle (20).

13. 13. A spinning unit device according to claim 12, wherein the spindle separating device (70) has a separating roller (71) supported so as to be movable in the direction of the drive belt (6), such that the separating roller (71) presses the drive belt (6) away from the weave (21) when the spindle separating device (70) is operated.

14. A spinning unit device as described in Claim 11, wherein the spindle brake (60) and the spindle separating device (70) of the spinning unit device (10) are configured so that, upon opening of the capsule (60), the spindle brake is first operated to its maximum braking action, and then the drive element (6) of the ring spinning machine (1) is separated from the spindle (20).

15. A spinning unit device as described in Claim 11, wherein the spindle brake (60) and the spindle separation device (70) of the spinning unit device (10) are configured so that, upon closing of the capsule (50), first the drive element (6) of the ring spinning machine (1) is connected to the spindle (20), and then the spindle brake is released.

16. 12. A spinning unit device according to claim 11, wherein the front capsule wall (52) has an operating arm (58) for operating the spindle separating device (70).

17. 14. A spinning unit device according to claim 13, characterized in that the separating roller (71) is mounted on a horizontally guided carriage (72), the carriage (72) being operable by means of a toggle lever (73).

18. A ring spinning machine comprising a plurality of spinning unit devices according to any one of claims 1 to 3.

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