Spinning position device with cover

Abstract

The invention relates to a spinning position device with a housing. The spinning position device (10) for a ring spinning machine (1) comprises a spindle (20) for a bobbin (13), which is mounted in a rotationally drivable manner on a spindle rail (2), and a housing (50), which extends in the longitudinal direction of the spindle (20) and surrounds the bobbin (13), wherein the housing (50) is connected to the spindle rail (2), it being provided that the housing (50) is divided in the longitudinal direction and has a rear housing wall (51) and a front housing wall (52), wherein the front housing wall (52) can be moved into an open position, so that in the open position an operating device has access to the bobbin (13) of the spinning position device (10).

Description

Technical Field

[0001] The present invention relates to a spinning position device for a ring spinning machine, comprising a spindle for a bobbin that is rotatably mounted on a spindle track and an outer cover that extends longitudinally along the spindle and surrounds the bobbin. Background Technology

[0002] Machines used for spinning with closed ends and true twist, such as ring spinning, funnel spinning, loop spinning, spinning with rotating loops, spinning with floating loops, spinning with all types of loop control elements (multiple loops, stationary and moving loop control sleeves, loop constrictors such as spinning crowns, spinning fingers, loop control rings, etc.), centrifugal can spinning, and Murano spinning are well known.

[0003] Such machines typically have a large number of spinning stations arranged side by side, moving in the same or similar manner. Spinning can be applied in the same way to twisting, which will not be discussed in detail here. Yarn is a higher-level term than yarn, filament, and twist. Hereinafter, "yarn" and spinning will generally be used. However, those skilled in the art will know that the term also applies to "thread" and "twisted thread."

[0004] Currently, many high-speed ring spinning machines are operating at speeds exceeding the cost-effectiveness derived from their spindle hourly output and energy consumption. Costs decrease linearly with increasing output, while energy consumption increases exponentially by a factor of approximately 2 to 4, typically around 3.2 to 3.4.

[0005] The reason for the exponential increase in energy consumption is that in spinning methods with closed ends and simple true twist, the winding bobbin on the machine must be forced to rotate (otherwise the machine must rotate around the bobbin). The bobbin, which is generally in the form of a spiral, then acts as a fan.

[0006] An outer cover is known for energy savings achieved by reducing the amount of air to be accelerated. Here, the bobbin and / or yarn loop are typically enclosed by a cylindrical sleeve, the diameter of which is a few millimeters larger than the bobbin or loop. It is effective, but hinders access to the bobbin under various operating conditions, such as during yarn breakage or yarn breakage.

[0007] A special form of gas ring limiter is a gas ring control sleeve, as described for example in DE1510657B1 or DE19848752A1.

[0008] The spindle or coil rotates on the spindle shaft and engages with it, for example, through a friction fit. The spindle can be driven by a belt drive or a separate electric motor. Numerous support variations exist, ideally independent of the outer casing. The spindle is generally fixed in a spindle track. It can be designed to be fixed or axially movable.

[0009] In addition, relative movement along the bobbin (or spindle) axis between the bobbin and the component used to define the yarn placement must be achieved so that not all the yarn is wound at the same location as the protrusion, but in a bobbin configuration (e.g., in a zigzag winding form) that can be determined by the relative movement.

[0010] Yarn laying components such as loops and travelers The edge of the cap or funnel in cap spinning, funnel spinning or loop spinning, or the yarn guide or yarn guide tube in funnel spinning or Murano spinning.

[0011] Yarn laying components are generally fixed side by side on long strip-shaped components, which may be called, for example, collar plate, funnel frame, cap frame, yarn guide frame or frame, depending on the component.

[0012] Relative motion can be achieved through the relative movement of one or two components. In the widely used traditional ring spinning machine, the ring rail is moved, while the spindle track is fixed on the machine base.

[0013] If the spindle is now covered, then either relative movement of the yarn laying device within the covered area must be allowed, or most of the outer cover must be abandoned, thereby saving energy.

[0014] The outer cover can be installed on the ring rail, as described in CH683349A5 (and DE1510657B1 or DE19848752A1), where only a specified small portion of the spinning area is covered. In this case, energy efficiency is poor.

[0015] CN209957949U illustrates an incomplete outer casing mounted below a steel ring plate, but shows an extended mounting of a spindle with a separate motor drive that is shifted upwards. The outer casing is incomplete and the spindle is relatively unstable, where the air gap of the outer wire ring cannot remain constant due to the spindle's rotation.

[0016] CH706759A1 illustrates an outer cover that completely and efficiently covers the spindle beneath the steel ring plate, but the long drive and support structure of the spindle is disadvantageous because the spindle will protrude into the outer cover.

[0017] DE1685679A1 illustrates two different shortenable cover variants, but they lack an energy-optimal diameter across their entire length range, and are neither stable, dirt-resistant, nor easy to clean. Furthermore, they do not offer accessibility.

[0018] EP3483313A1 describes a movable spindle in which the spindle is inserted into an outer casing. A long, costly spindle shape is also required here.

[0019] WO2020105006A1 describes a magnetically mounted long spindle adapted to be moved into an outer casing mounted on a steel collar plate. The operating costs required for using the outer casing are quite high.

[0020] CH715908A1 illustrates a multi-air ring method with a fixed steel ring plate and movable ribs, which allows the multiple air rings to be kept constant. However, high cost and significant structural height are also found, as these are required not only to cover the air rings above the steel ring plate but also to cover the spindle below. Similarly, energy efficiency is compromised due to the large volume of rotating air.

[0021] JP2013170337A describes a spinning machine in which an outer cover is fixedly mounted on a spindle track. The outer cover has a slit, and the functional portion of the ring rail is mounted behind the outer cover facing inwards, such that the ring rail's loop passes through the slit from the outside and is guided axially within the outer cover. The machine structure is essentially conventional, and the height of the outer cover is only as required by function, but among other disadvantages, the main drawback is the difficulty in accessing the spinning position. The spinning machine is difficult to operate under certain working conditions. In any case, the spinning position must be stopped and accessible only under certain working conditions, such as yarn breakage or splicing to bare bobbins.

[0022] CN210194054U solves the problem of yarn guide integration and guides the spinning ring through magnets held inside the outer cover from the outside without gaps. The yarn guide is integrated into the cover and the structural height is optimized. The outer cover rotates and requires its own cover for energy saving. The technology is expensive. The spinning position is difficult to access.

[0023] In conventional ring spinning machines, during the yarn-forming process, the yarn already on the bobbin or added there for the purpose of yarn-forming is passed upward through one or more guide components. The spindle is activated, causing the yarn head to combine with the fiber exiting the drafting unit, thus twisting and connecting the new fiber with the original yarn. This can be accomplished, for example, by splicing or crossing at the exit of the drafting unit onto the output roller. Then, the normal spinning process begins, at which point the supplied fiber acquires a certain amount of twist per unit yarn length.

[0024] However, the spindle must necessarily begin with twisted yarn. During the remaining time of the yarn raising process, the yarn always acquires additional twist in the same yarn piece, which can lead to the yarn being over-twisted and thus breaking if the yarn raising is too slow or the spinning speed is too fast. Summary of the Invention

[0025] The objective of this invention is to achieve complete enclosure of the spindle or bobbin body, allowing for simple spindle accessibility consistent with common ring spinning machine structures. Another objective is to achieve accessibility, particularly in the event of a yarn breakage, for simple operation of the individual spinning position. In particular, the yarn breakage should be eliminated within the currently common 6-10 seconds.

[0026] This task is accomplished by a spinning device. The spinning position device for a ring spinning machine includes a spindle rotatably mounted on a spindle track for a bobbin (i.e., a bare bobbin or a bobbin with winding) and an outer cover extending longitudinally along the spindle and surrounding the bobbin, wherein the outer cover is connected to the spindle track. The outer cover is longitudinally separated and has a rear cover wall and a front cover wall on the operator's side. The front cover wall is movable to an open position, in which the bobbin of the spinning position device can be accessed for operation.

[0027] In several embodiments, the front cover can be pivotally connected in the lower region and pivotable to a preferred horizontal position. Alternatively, the front cover can be positioned in an open position by linear movement, pivoting or moving about the spindle axis, etc.

[0028] The advantages of this invention are as follows: the outer cover can be opened very easily. In the case of a ring spinning machine, the axis of rotation of the spindle in a separate spinning position extends vertically. The spindle is rotatably mounted on a spindle track at its lower end. Since the front cover wall on the operator's side is rotatably mounted at the lower end, it can reliably ensure access to the bobbin from the front, i.e., from the operator's side of the ring spinning machine, when swinging out from the vertically closed position to the horizontally open position. This allows for seamless machine re-starting or automatic or manual operation in case of yarn breakage. This cover is also suitable for retrofitting existing spinning machines.

[0029] In several embodiments, the rear cover wall can be fixedly connected to the spindle track and the front cover wall can be pivotally connected to the rear cover wall. For this purpose, the rear cover wall can, for example, have two side-mounted, forward-projecting legs, on which the front cover wall is pivotally held, for example, by means of a shaft. Alternatively, the front cover wall can also be pivotally connected to the spindle track, or to a support mounted on the spindle track.

[0030] In several embodiments, the rear and front cover walls can each be designed as partial shells, preferably hinged together in the spindle track region. The partial shells collectively surround the 360° spindle shaft. The partial shells can also be designed as half-shells, each surrounding 180°. Other divisions are also conceivable.

[0031] In several embodiments, the spinning position device may also include a spindle brake, which can be operated by opening the outer cover to brake the spindle or bobbin. Such a mechanical spindle brake is typically necessary because the bobbin, due to its high rotational speed, can no longer be manually braked. Reliable, rapid braking is also essential, for example, to eliminate yarn breakage in the shortest possible time.

[0032] Spindle brakes are known by themselves and are usually designed to be operated by the operator with their knees, freeing up both hands to eliminate yarn breakage.

[0033] In several embodiments, the front cover wall can now have a braking mechanism that operates the spindle brake by moving the front cover wall to the open position. The advantage of this is that the spindle or bobbin is braked simultaneously with the opening of the outer cover. The cumbersome braking method using the knee can be eliminated. Once the outer cover is fully open, the bobbin is also braked, and the yarn end can be properly threaded and connected to the roving. When the outer cover is closed, the spindle brake is disengaged accordingly, and the spinning process continues.

[0034] In several embodiments, the braking force of the spindle brake is controllable, preferably steplessly controllable. Using this controllable braking force, the spindle can be braked to a stop quickly or slowly as needed. Conversely, spindle starting can be controlled by closing the outer casing or front casing wall, allowing the spindle to reach the rotational speed required for head generation.

[0035] In several embodiments, the braking effect of the spindle brake can increase to its maximum as the outer casing is gradually opened. The spindle brake can be operated via a braking mechanism mounted on the front casing wall by opening or swinging the front casing wall. Here, the spindle brake and braking mechanism can be designed such that the braking effect increases as the outer casing is gradually opened. When opened, the spindle or bobbin is braked. Conversely, when the outer casing is closed, the braking effect weakens and the spindle or bobbin begins to rotate again. The front casing wall here acts as a brake arm for adjusting the spindle speed. In this way, especially when the outer casing is closed, the spindle's starting speed can be adjusted, thereby obtaining the optimal speed for yarn twisting at the end of yarn breakage elimination. Once the outer casing is fully closed, the spindle resumes operation at its working speed and the spinning process continues.

[0036] In several embodiments, the spindle brake may be arranged between the cylinder body and the spindle disc (Wirtel) or between the spindle disc and the cylinder support.

[0037] In several embodiments, the spindle brake can be designed as a clamp or clip. The clip may have a first brake arm and a second brake arm connected to each other by a hinge. One of the brake arms may also be elastically configured. Clamps for holding the spindle can be formed at one end of each of the two brake arms. The other ends of each of the two brake arms can be designed such that the braking actuation mechanism can be inserted between the two brake arms and press the ends of the brake arms apart. Here, the clamps are pressed together and the spindle is braked.

[0038] In the case of a spindle brake in the form of clamps or clips, the two brake arms may have inclined stop surfaces approaching a hinge at the end where the brake operating mechanism is inserted (i.e., the end opposite the spindle). In this way, the braking effect can be enhanced as the outer casing gradually opens or the brake operating mechanism is progressively inserted between the brake arms. From a predetermined insertion depth, the two stop surfaces can extend parallel to each other, so that the braking effect no longer increases but remains constant as the brake operating mechanism is further inserted. This is particularly advantageous when the spindle separation device described below is used in conjunction with the brake brake.

[0039] Alternatively, the spindle brake can be designed as a sliding guide rod mechanism with brake calipers and a braking operation mechanism for the outer casing. The sliding guide rod mechanism can be designed such that the braking effect is enhanced according to the degree of opening of the outer casing and, if necessary, remains constant from a certain opening degree.

[0040] The spinning station can be equipped with a separate spindle drive unit, or a single drive unit can drive multiple spinning stations, for example, via a transmission belt.

[0041] In several embodiments, the spinning position device may have a separate spindle drive unit, which can be controlled by opening or closing the outer casing (similar to the spindle brake described above). For this purpose, the spinning position device may be equipped with a drive control unit that can be operated by opening and closing the outer casing. By opening the outer casing, the rotational speed of the drive unit can be reduced or the drive unit can be completely shut off. Conversely, by closing the outer casing, the rotational speed of the drive unit can be increased or the drive unit can be re-engaged. This controller can be designed to be mechanical and / or electronic.

[0042] In several embodiments, the spinning position device may include a spindle separation device that separates the drive component of the ring spinning machine from the spindle by opening the outer cover, preferably when the front cover wall is swung out to the open position. The drive component may be a drive belt that rests against the spindle disc for spindle operation. This spindle separation device is advantageous in preventing the braked spindle from overheating due to, for example, the continuing movement of the drive belt.

[0043] In several embodiments, the spindle separating device may have a separating roller that is movably mounted toward the drive belt, such that the separating roller presses the drive belt apart from the spindle disc during operation of the spindle separating device. When the outer cover is opened, the drive belt is correspondingly separated from the spindle, and the spindle can be easily braked.

[0044] The aforementioned disconnect or disconnect drive unit is particularly advantageous when the spinning position must be shut down for an extended period due to a malfunction.

[0045] In several embodiments, the spindle brake and the spindle release device or drive control unit can be combined with each other. Preferably, the spindle brake and the spindle release device or drive control unit can be designed such that the spindle brake is operated first until maximum braking force is applied when the outer cover is opened, preferably when the front cover wall is swung out to the open position, before the drive component of the ring spinning machine is separated from the spindle. Conversely, the spindle brake and the spindle release device or drive control unit can be designed such that the drive component of the ring spinning machine is engaged to the spindle first when the outer cover is closed, and then the spindle brake is disengaged.

[0046] In several embodiments, the front cover wall may have an operating arm for operating the spindle separating device or the drive control unit. The separating roller may, for example, be mounted on a horizontally guided slide, which can be operated by means of an elbow. The operating arm can act on the elbow when the front cover wall swings outward, thus disengaging the drive component. The operating arm can be designed to act on the spindle separating device only when the outer cover is almost fully open, so that the spindle is separated only after it has been braked. This is particularly advantageous for first engaging the spindle to the drive component when the outer cover is closed and then releasing the brake to allow for reliable adjustment or gradual release of the brake during closing.

[0047] The combination of the outer casing and the spindle brake, which is adjustable according to the degree of opening of the outer casing, can also be considered an independent invention. Similarly, the gradual adjustment of the spindle brake itself can be considered an independent invention. The spindle separation device, either alone or in combination with an outer casing with or without a spindle brake, can also be considered an independent invention.

[0048] Another form of the invention is also conceivable, in which a mechanical brake (rapid and powerful braking action) or a drive control device acts on a spindle driven by a single motor.

[0049] However, all implementations share the common feature of braking the spindle by opening the outer cover of the spinning position and the controllable spindle speed, at least during operation, determined by the open state of the outer cover.

[0050] The present invention also relates to a ring spinning machine having a plurality of the aforementioned spinning positions. Attached Figure Description

[0051] The present invention will now be explained in detail with reference to embodiments related to the accompanying drawings, wherein:

[0052] Figure 1a A side view of the spinning position device with an outer cover is shown, the cover being in the closed position;

[0053] Figure 1b A side view of the spinning position device with an outer cover is shown, the cover being in the open position;

[0054] Figure 2 A front view of the front shroud with the braking mechanism is shown;

[0055] Figure 3 Showing the spindle brake;

[0056] Figure 4a The spindle separator is shown in the engaged position; and

[0057] Figure 4b The spindle separation device is shown in the separation position.

[0058] In the figures, the same reference numerals are used for the same parts, and the initial interpretation applies to all figures unless otherwise explicitly stated.

[0059] List of reference numerals

[0060] 1. Ring spinning machine

[0061] 2. Spindle Track

[0062] 3. Steel collar plate

[0063] 4. Crossbeam (valves limiter)

[0064] 5. Crossbeam (yarn guide)

[0065] 6. Drive components / tangential transmission belt

[0066] 7. Drafting device

[0067] 10 Spinning position / spinning position device

[0068] 11. Coarse yarn

[0069] 12 yarns

[0070] 13. Yarn bobbin / spinning sheath

[0071] 14 Yarn Air Loop

[0072] 20 spindles

[0073] 21-spindle plate

[0074] 22-spindle bearing

[0075] 30 Spinning ring

[0076] 31 Steel wire ring

[0077] 40 Yarn guide

[0078] 41. Gas Limiter

[0079] 50 outer cover

[0080] 51 Rear cover wall

[0081] 52 Front Cover Wall

[0082] 53 legs

[0083] 54 Hinge / Rotation Axis

[0084] 55 Braking mechanism

[0085] 56 manipulators

[0086] 57 balls

[0087] 58 Operating arms for spindle separation devices

[0088] 60-spindle brake

[0089] 61 First Braking Arm

[0090] 62 Second Brake Arm

[0091] 63 Hinges

[0092] 64 Spring components

[0093] 65 Stop surfaces for enhanced braking effect

[0094] 66 Stop surfaces used for constant braking action

[0095] 70-spindle separation device

[0096] 71 Separating Roller

[0097] 72 Slide

[0098] 73 Elbow Detailed Implementation

[0099] Figure 1a A side view shows a schematic diagram of the spinning position 10 of the ring spinning machine 1, with the outer cover in the closed position. Figure 1b A side view shows a schematic diagram of the spinning position 10 of the ring spinning machine 1, with the outer cover in the open position.

[0100] At spinning position 10, roving 11 is spun into yarn 12 and wound onto a rotating bobbin 13 or spinning wheel. The bobbin 13 is mounted on a drivable rotating spindle 20. During the spinning process, the roving 11 passes through the drafting device 7, is then twisted into yarn 12, and wound onto the bobbin 13. To place the yarn 12 onto the bobbin 13, the yarn 12 is guided by a traveler 31 rotating on a spinning ring 30. Additionally, a yarn guide 40 is arranged above the spindle 20 or bobbin 13 to guide the yarn 12. The radial extension dimension of the yarn air ring 14 formed during winding can be limited by an air ring limiter 41 or an air ring control ring. The air ring limiter 41 is thus arranged between the spinning ring 30 and the yarn guide 40. A ring spinning machine 1 generally has a number of spinning positions 10 arranged side-by-side.

[0101] The spinning ring 30 of the spinning position 10 is mounted on a ring plate 3 extending longitudinally along the ring spinning machine 1. The air ring limiter 41 of the side-by-side spinning position 10 is adjustablely mounted on a crossbeam 4 extending longitudinally along the ring spinning machine 1. Correspondingly, the yarn guide 40 of the side-by-side spinning position 10 is adjustablely mounted on a crossbeam 5 extending longitudinally along the ring spinning machine 1.

[0102] The spindle 20 of spinning position 10 is mounted on a spindle track 2 extending longitudinally along the ring spinning machine 1. In this embodiment, the spindle 20 of spinning position 10 includes a spindle disc 21 at its lower end and a spindle bearing 22 thereby rotatably mounting the spindle 20 on the spindle track 2. The spindle 20 is driven by a tangential drive belt 6, which can drive multiple spinning positions individually and is pressed against the spindle disc 21 of the spindle 20. Other drive mechanisms are also possible.

[0103] Figure 1a The outer cover 50 of the spinning position device 10 in the closed position is also shown.

[0104] The outer cover 50 is formed by two axially separated cover walls in the form of partial covers or partial shells. The rear cover wall 51 is connected to the spindle track 2 and is fixedly mounted relative to the spindle, or fixedly but removably mounted. The operator-side front cover wall 52 can be opened, for example by pivoting about a hinge 54, the axis of which lies in a plane perpendicular to the spindle axis or the outer cover axis. In the illustrated embodiment, the hinge 54 is located at two side legs 53 of the rear cover wall 51 extending forward beyond the front cover wall 52.

[0105] The spindle brake 60 is also schematically shown in the illustrated embodiment, which is positioned just below the cylinder body 13 and above the spindle disc 21 of the spindle 20.

[0106] To activate and control the spindle brake 60, the front cover wall 52 has a brake operating device 55. This is implemented here in the form of an operating arm 56 together with a ball 57 formed on its free end.

[0107] The front cover wall 52 has a predetermined final position when closed. A mechanism is provided, for example in the form of a spinning ring 30 and a traveler 31, for moving the yarn-laying device axially in the spindle 20 or the bobbin 13. This can be, for example, a slit with an interlocking loop in the rear cover wall 51, or, for example, a magnetic guiding mechanism for the spinning ring 30.

[0108] Figure 1b Show Figure 1a The spinning device is in the open position with the outer cover 50 in the open position. Here, the front cover wall 52 is pivoted forward and downward about the hinge 54, so that the front cover wall 52 is in a substantially horizontal position. In this way, the bobbin 13 can be freely accessed by the operating device. The front cover wall 52 can be easily moved from the closed position to the open position by hand (or with the aid of a robot).

[0109] The braking operating mechanism 55 is installed at the lower end of the front cover 52. When the front cover 52 swings outward, the ball 57 of the braking operating mechanism 55 (in the illustrated embodiment) is inserted into the spindle brake, thereby causing the spindle to brake. Other designs of the braking operating mechanism are also possible.

[0110] Figure 2 A front view of the front cover 52 of the brake operating mechanism 55, which is designed with an operating arm 56 and a ball 57, is shown.

[0111] Figure 3 The diagram shows a top view of the spindle brake 60. In the illustrated embodiment, the spindle brake 60 is designed as a clamp or pliers and has a first brake arm 61 and a second brake arm 62. The two brake arms 61, 62 are interconnected by a hinge 63. At one end, each of the two brake arms 61, 62 has a brake clamp or gripper that holds the spindle 20 of the spinning position device 10. When the spindle brake 60 is operated, the clamp is pressed against the spindle 20 and brakes the spindle.

[0112] The other ends of each of the two brake arms 61 and 62 can be designed such that the brake operating mechanism 55 can be inserted between the two brake arms 61 and 62 and press the ends of the brake arms 61 and 62 apart. Here, the clamps are pressed together and the stator is braked.

[0113] Therefore, the braking force of the spindle brake 60 can be steplessly controlled or adjusted using a suitable braking operating mechanism 55, for example, in the form of a wedge, ball 57, cylinder, or other suitable form. The gap shown between the brake arms 61, 62 is designed to be wedge-shaped and straight, wherein the wedge shape can have other angles or any wedge curve profile, so that the braking action can be adjusted according to the displacement or pivot angle of the operation.

[0114] One of the brake arms, here the second brake arm 62, is elastically configured because it has, for example, two portions connected by a spring member 64. The spring member 64 may be spring steel.

[0115] As the outer casing 52 swings outward, the ball 57 of the braking operating mechanism 55 is inserted deeper and deeper into the gap between the two braking arms 61 and 62. To gradually increase the braking effect according to the degree of opening of the outer casing 50, each of the two braking arms 61 and 62 has a stop surface 65 for the ball 57 of the braking operating mechanism 55 at its end opposite to the spindle. This stop surface is close to the hinge 63, thus creating a narrowed gap between the braking arms 61 and 62 for the ball 57 to insert. As the insertion deepens, the end of the spindle brake 60 opposite to the stator is pressed apart, and the clamp is pressed onto the spindle 20. The braking effect is thus enhanced.

[0116] From a certain insertion depth, the brake arms can have stop surfaces 66 for maintaining a constant braking force, which extend substantially parallel to each other when the brake operating mechanism 55 is inserted. In this way, the outer cover 50 can be placed in the fully open position after it has generated maximum braking force in the partially open position. Here, the braking force remains constant.

[0117] In other words, by opening the outer cover 50, the brake operating mechanism 55 is guided to a certain insertion depth on the stop surface 65 for enhanced braking action. Then, it is guided on the stop surface 66 for maintaining a constant braking action until the outer cover is fully open. In this way, the spindle brake is easily achieved by the outward or inward swing of the front cover wall 52. This is especially true when used in conjunction with the following... Figure 4a and Figure 4b The aforementioned spindle separation device 70 is advantageous.

[0118] Furthermore, a locking position is specified that allows the spindle brake 60 to remain locked without requiring the brake operating mechanism 55 to be engaged. It can be centered within the gap or formed at its end. Many implementations are also conceivable for this purpose.

[0119] The brake is designed here as a clamp that closes when the two operating arms are pressed apart and does not contact the spindle during normal operation. For this purpose, a spring is provided to insert and hold the brake clamp in this position, which can also be achieved by a series of other clamp implementations. For example, an elastomer or a plastic part designed to be at least partially elastic can perform the same function.

[0120] Alternatively, the spindle brake can be designed such that it closes when the brake arm is pressed together. The brake arm must then be pressed together by a suitable mating element of the brake operating mechanism. For example, a wedge-shaped gap in the brake arm can also be incorporated into the brake operating mechanism. Similarly, one of the brake arms or only one brake caliper can be fixed and only one brake arm can be operated.

[0121] Figure 4a A schematic diagram of the spindle separation device 70 in the engagement position is shown. Figure 4b A schematic diagram of the spindle separation device 70 in the separation position is shown. The front cover wall 52 has an operating arm 58 fixedly connected to the spindle separation device 70. Figure 2 The operating arm 58 for the spindle separator 70 is shown in dashed lines. It is offset in the horizontal longitudinal direction relative to the spindle 20 on the ring spinning machine, so that it can operate the spindle separator 70 located next to the spindle 20.

[0122] The spindle separating device 70, in the illustrated embodiment, has a slide 72 that is linearly guided to move on a spindle track 2. A separating roller 71 with a vertical axis of rotation (parallel to the spindle axis) is mounted on the slide 72. The slide 72 is connected to the spindle track 2 or a guide plate for the slide 72 via an elbow 73. Operation of the elbow 73 causes linear displacement of the slide 72 together with the separating roller 71.

[0123] The spindle separation device 70 is arranged such that the separation roller 71 lifts the drive belt 6 away from the spindle 20 (or the spindle disc 21 of the spindle 20) when the elbow 73 is operated (see...). Figure 4b This is to prevent the spindle 20 from overheating during braking. This is particularly advantageous at higher spindle speeds and higher power transmission ratios.

[0124] To operate the toggle lever 72 or the spindle separating device 70, the front cover wall 52 has a non-rotatably connected operating arm or lever 58. If the operating arm 58 is disengaged from the toggle lever 73, the drive belt 6 returns the separating roller 71, the slide 72, and the toggle lever 73 to their initial positions. This process can be supported by a suitable mechanism such as a spring, and the movement can be restricted to define the final position, but the slide 72 can be removed.

[0125] Similarly, other operating mechanisms for the separating roller, such as cams or partial cams, can be considered to disengage the separating roller. However, all solutions share the common goal of lifting the drive belt away from the spindle.

Claims

1. A spinning position device (10) for a ring spinning machine (1), the spinning position device (10) comprising a spindle (20) for a bobbin (13) mounted rotatably on a spindle track (2) and an outer cover (50) extending longitudinally from the spindle (20) and surrounding the bobbin (13), wherein, The outer cover (50) is connected to the spindle track (2), characterized in that the outer cover (50) is longitudinally separated and has a rear cover wall (51) and a front cover wall (52), wherein the front cover wall (52) is movable to an open position, such that in the open position it can be accessed to the bobbin (13) of the spinning position device (10) for operation. The rear cover wall (51) and the front cover wall (52) are each designed as partial shells, and they are connected to each other in the region of the spindle track (2) by means of hinges (54). The spinning position device (10) also includes a spindle brake (60), which can be operated by opening the outer cover (50) to brake the spindle (20) or the bobbin (13). The front cover (52) has a braking operation mechanism (55), which operates the spindle brake (60) by moving the front cover (52) to the open position. The spindle brake (60) is configured in the form of a clamp and has a first brake arm (61) and a second brake arm (62) connected to each other by a hinge (63). The brake arms (61, 62) have a stop surface (65) at one end opposite to the spindle (20). The brake operating mechanism (55) is inserted between the first brake arm (61) and the second brake arm (62) and moves along the stop surface (65) during the opening of the front cover (52), so that the braking effect of the spindle brake (60) increases as the outer cover (50) gradually increases until the maximum braking effect is achieved.

2. The spinning device according to claim 1, characterized in that, The front cover is pivotally connected in the lower region.

3. The spinning position device according to claim 2, characterized in that, The rear cover wall (51) is fixedly connected to the spindle track (2), and the front cover wall (52) is pivotally connected to the rear cover wall (51).

4. The spinning position device according to claim 1, characterized in that, The braking force of the spindle brake (60) is controllable.

5. The spinning position device according to claim 1, characterized in that, The spinning position device has a separate spindle drive unit that can be controlled by opening and / or closing the outer cover.

6. The spinning position device according to claim 1, characterized in that, The spinning position device (10) has a spindle separation device (70), which separates the drive component (6) of the ring spinning machine (1) from the spindle (20) by opening the outer cover (50).

7. The spinning position device according to claim 6, characterized in that, The drive component (6) is a drive belt that abuts the spindle disc (21) of the spindle (20) for the operation of the spindle (20).

8. The spinning position device according to claim 7, characterized in that, The spindle separating device (70) has a separating roller (71) that can move toward the drive belt, such that the separating roller (71) presses the drive belt away from the spindle disc (21) when the spindle separating device (70) is in operation.

9. The spinning position device according to claim 6, characterized in that, The spindle brake (60) and the spindle separation device (70) are designed such that opening the outer cover (50) first operates the spindle brake until the maximum braking effect, and then separates the drive component (6) of the ring spinning machine (1) from the spindle (20).

10. The spinning position device according to claim 6, characterized in that, The spindle brake (60) and the spindle separation device (70) are designed such that the closing of the outer cover (50) first engages the drive component (6) of the ring spinning machine (1) with the spindle (20), and then disengages the spindle brake.

11. The spinning position device according to claim 6, characterized in that, The front cover (52) has an operating arm (58) for operating the spindle separation device (70).

12. The spinning position device according to claim 8, characterized in that, The separating roller (71) is fixed on a horizontally guided slide (72), wherein the slide (72) can be operated by means of an elbow (73).

13. The spinning position device according to claim 2, characterized in that, The front cover can pivot to a horizontal position.

14. The spinning position device according to claim 4, characterized in that, The braking force of the spindle brake (60) is infinitely controllable.

15. A ring spinning machine having a plurality of spinning positions according to any one of the preceding claims.

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