CN114072549A - Spinning machine - Google Patents
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- CN114072549A CN114072549A CN202080039978.2A CN202080039978A CN114072549A CN 114072549 A CN114072549 A CN 114072549A CN 202080039978 A CN202080039978 A CN 202080039978A CN 114072549 A CN114072549 A CN 114072549A
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- suction
- roller
- rollers
- delivery
- spinning machine
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a spinning machine having a plurality of drafting systems (2), each drafting system (2) comprising: an upper roller and a lower roller; a loading arm (19) for two adjacent drafting systems (2, 2'), where the top rollers of the drafting system (2) are arranged as double rollers of the two adjacent drafting systems (2, 2'); and a delivery roller pair (5) consisting of an upper delivery roller (6) and a lower delivery roller (7), in particular a delivery drum (7). Downstream of the delivery roller pair (5) of the drawing system (2), a pneumatic thread pressing device (20) is arranged for compressing the drawn fiber strand (8), which has a suction tube (17) that can be sucked, wherein the suction tube (17) is wrapped by a screen (18) and arranged on a support (25). The support (25) is movably arranged in a bearing (45) and the suction tube (17) is elastically pressed by the support (25) against the rollers of the delivery roller pair (5) of the adjacent drafting system (2, 2'). Two supports (25, 25') which can be moved independently of one another and the suction pipes (17, 17') thereof are arranged on two adjacent drafting systems (2, 2') of the loading arm (19), and each of the two supports (25, 25') and each of the suction pipes (17, 17') can be moved only to one of the adjacent drafting systems (2, 2'), in particular to one of the double rollers in the delivery roller pair (5) of the adjacent drafting system (2, 2 ').
Description
Technical Field
The invention relates to a spinning machine having a plurality of drawing systems, each comprising: an upper roller and a lower roller; loading arms for two adjacent drafting systems, wherein the top rollers of the drafting systems are arranged as double rollers of the two adjacent drafting systems; a delivery roller pair, which is composed of an upper delivery roller and a lower delivery roller, especially a delivery roller; and a pneumatic filament pressing device downstream of the delivery roller pair of the drafting system for pressing and drafting the filament strand, the filament pressing device having a suction tube which can be sucked and is wrapped by the screen and is arranged on a support, the support is movably arranged in the bearing, and the suction tube is elastically pressed against the rollers of the delivery roller pair of the loading arm by the support.
Background
Spinning machines with a plurality of drafting systems are known from the prior art, in which the top rollers of two adjacent drafting systems are arranged as double rollers on a loading arm. For example, DE 29822763U 1 describes a corresponding machine. The spinning machine disclosed therein has a pneumatic thread presser which is provided with a suction tube for each drawing system, wherein the suction tubes of two adjacent drawing systems are configured as a structural unit. A drawback of the above-described machine is that the position and angle of the suction duct on each roller of the pair of delivery rollers of adjacent drafting systems must be set very precisely in order to achieve a uniform system and avoid irregular compaction of the filament strands.
Disclosure of Invention
In view of the above, the object of the invention is to provide a spinning machine which is characterized by a reliable and uniform compaction of the filament strands coming from two adjacent drawing systems.
The solution of the invention to achieve the above object is a spinning machine having the features of independent claim 1.
The spinning machine according to the invention has a plurality of drafting systems, each having a top roller and a bottom roller and loading arms for two adjacent drafting systems, the top rollers of the drafting systems being arranged as double rollers of the two adjacent drafting systems. The delivery roller pair is formed by an upper delivery roller and a lower delivery roller, in particular a delivery drum. The downstream of the output roller pair of the drafting system is provided with a pneumatic filament pressing device for compacting and drafting the filament strands. The wire pressing device is provided with a suction pipe capable of sucking. The suction tube is wrapped by the screen. Filaments from the filament strand are not drawn into the suction tube. The filament strands can be uniformly compacted and conveyed through the nip between the suction tube and the upper or lower delivery roller. The screen elements are preferably screen belts, but may also be screen rollers. The suction tube is arranged at a support, which is movably arranged in a bearing. The suction tube is elastically pressed against the rollers of the pair of delivery rollers of the adjacent drafting system by means of the support.
According to the invention, two supports which can move independently of one another and suction pipes thereof are arranged on the loading arm at two adjacent drafting systems. Each of the two carriages and each of the suction ducts can only be moved to feed one of the adjacent drafting systems, in particular one of the double rollers of the pair of delivery rollers of the adjacent drafting system. The effect of this suction tube arrangement is that, for example, after opening and closing the drafting system by lifting the loading arm, a possible inclination of one or more of the pair of delivery rollers can be compensated for by the support. This achieves a reliable and uniform compaction of the fiber strand, in particular at two adjacent drawing systems. The function of the support is to determine the position and angle of uniformly positioning each suction tube relative to one of the two rollers in the pair of delivery rollers of the adjacent drafting system. This ensures, in particular, that the suction tube bears uniformly against one of the rollers in the delivery roller pair, even if the two rollers of the pair have different angular offsets from one another.
In an advantageous embodiment of the invention, the support is movably, rotatably and/or tiltably arranged in the bearing. This enables the suction duct to be oriented parallel to the associated roller in the delivery roller pair, even if they have a large inclination to one another.
It is also advantageous if springs and/or pneumatic elements are arranged on the support for elastically pressing the suction tube against the associated roller in the pair of delivery rollers. In a preferred embodiment, the spring and/or pneumatic element can also be adjusted in its pressure to ensure a uniform loading of the suction tube and thus a continuous and uniform compaction of the fiber strand.
It is also advantageous if the support is associated with a loading arm, a double upper roller shaft or a loading unit arranged at the loading arm, wherein the suction tube is pressed by the support against the upper and/or lower delivery rollers, in particular the delivery drum, or with a frame or a double lower roller shaft, wherein the suction tube is pressed by the support against the upper and/or lower delivery rollers, in particular the delivery drum. This arrangement ensures the highest possible and constant contact pressure of the suction tube on the respective roller of the delivery roller pair, and thus a continuous and uniform compression of the fiber strand.
In a particularly advantageous embodiment of the invention, the spring and/or the pneumatic element is supported on a loading arm or a frame. This allows a simple and cost-effective construction of the spring and/or the pneumatic element.
It is also advantageous if the spring and/or the pneumatic element is arranged substantially centrally at the roller concerned in the pair of delivery rollers. In this way, the suction tube can be pressed as uniformly as possible against the roller concerned in the delivery roller pair. This uniform compaction is particularly important in producing particularly high quality yarns.
Advantageously, a spring and/or a pneumatic element is arranged between the bearing and the suction tube. This makes it possible to achieve the highest possible and uniform contact pressure of the suction tube against the respective roller of the delivery roller pair with a small installation space.
It is particularly advantageous if the filament pressing device has a filament collection space which is delimited by two clamping points. The first pinch point is defined by the two rollers of the pair of delivery rollers and the second pinch point is formed by one of the two rollers of the pair of delivery rollers and the screen. The filament strand is clamped between the two clamping points and the suction tube sucks the filament strand between the two clamping points, thereby compacting the filament strand at the suction tube.
It is also advantageous if the suction pipe is connected to a tensioning device for the sieve element. The screen enclosing the suction tube is preferably arranged around the suction tube with a defined tension. A tensioning device arranged at the suction duct will ensure that the screening element determines a uniform pretension on the suction duct.
Particularly advantageously, an intake manifold is arranged on the support or on the intake manifold.
The suction duct serves to connect the suction duct to a suction source arranged in the spinning machine.
It is also advantageous if at least one elastic connection, in particular at least one bellows, is arranged at the suction line for the elastic connection of the suction line to the suction line and/or to the second part, in particular to the static part of the suction line. In the case of a static arrangement, a flexible connection to the suction device in the machine is required in order not to restrict the movability of the respective carriage in order to ensure a movable feed to one of the double rollers in the pair of output rollers of the adjacent drafting system.
Preferably, each suction pipe of adjacent drawing systems is associated with a suction pipe, or two adjacent suction pipes open into a common suction pipe, wherein the two suction pipes of adjacent drawing systems can be designed separately from one another or connected to one another. The individual suction ducts can perform suction independently of the adjacent suction ducts. This ensures that the suction of the thread pressing device can be adjusted individually and, if necessary, individually. Alternatively, two adjacent suction lines can open into a common suction line. This allows a simple construction, with two adjacent drawing systems or thread-pressing devices being sufficient for uniform suction in most cases.
It is also advantageous if the support, the bearing, the suction tube and/or the suction tube are integrally formed, in particular made of plastic. This allows a simple and low-cost manufacturing of the bracket. In the event of wear, the holder can also be replaced independently of the adjacent drafting system and at low cost. This achieves an always optimal compaction of the fiber strands.
Drawings
Further advantages of the invention are described below in connection with the examples. In the figure:
fig. 1 shows a schematic longitudinal section of a spinning machine;
FIG. 2 illustrates a side view of a compaction apparatus according to an embodiment;
figure 3 shows a front view of a loading arm and two adjacent drafting systems according to an embodiment;
figure 4 shows a front view of a loading arm and two adjacent drafting systems according to another embodiment;
fig. 5 shows a side view of a thread-pressing device in the region of a delivery roller pair according to a further application example;
fig. 6 shows a schematic cross-sectional view of a bearing of the support shaft.
In the following description of the illustrated alternative embodiments, the same reference numerals are used for the same and/or at least equivalent features in the design and/or mode of action of these embodiments. If these features are not explained in detail again, their design and/or mode of action correspond to the design and mode of action of the features already described.
Detailed Description
Fig. 1 shows a schematic longitudinal section through a spinning machine, in particular a ring spinning machine, having a thread pressing device 20. The drawing shows the individual components of the spinning machine, i.e. the drafting system 2 and the spinning device 10, by way of example. The drafting system 2 consists of three pairs of rollers: a pair of input rollers 3, a pair of drive rollers 4 and a pair of output rollers 5. The delivery roller pair 5 is formed by an upper delivery roller 6 and a lower delivery roller 7. The two rollers of the roller pair are pressed against one another and form a clamping point at their contact point, wherein the clamping point K1 is formed by the delivery roller pair 5 between the upper delivery roller 6 and the lower delivery roller 7, in particular the delivery cylinder. The clamping point K2 is formed by a suction tube 17 (fig. 2), which suction tube 17 can be pressed against one of the rollers in the delivery roller pair 5. The fiber strand 1 fed to the drawing system 2 is clamped between the rollers of the roller pairs 3, 4 and 5 by means of a clamping point and is drawn differently due to the different rotational speeds of the roller pairs 3, 4 and 5. During drawing, the fiber strands 1 are simultaneously conveyed through a drawing system 2. After leaving the drawing system 2, the drawn fiber strand 8 reaches a fiber pressing device 20, where it is compacted in the fiber pressing device 20. Between the clamping points K1 and K2, a filament bundling zone 16 is present at the suction tube 17 with suction grooves, in which filament bundling zone 16 filaments from the filament strand 8 are bundled or compacted. Subsequently, the fiber strand 8 reaches the yarn guide 9 and is guided further to the spinning device 10. The spinning device 10 is mainly composed of a ring table 14 carrying a spinning ring 12 and a spindle table 15 to which a bobbin 13 is attached. The fiber strand 8 reaches the winding 13 via the rotor 11. To spin the fiber strand 8, the windings 13 are set in rotation, which results in the fiber strand 8 on the ring 12 also setting the rotor 11 in rotation. As the windings 13 and rotor 11 rotate, the filament strands 8 are caused to spiral, thereby winding the yarn onto the windings 13 by moving the ring stand 14 up and down.
To open the drafting system 2, the top roller can be lifted off the bottom roller. For this purpose, the loading arm 19 to which the top roller is attached in a known manner is moved about the pivot point D in the direction of the arrow P in order to reclose the drafting system.
The drafting system for a spinning machine comprises at least two pairs of roller pairs between which the filament strands are drafted as a result of the different rotational speeds of the roller pairs. After the drawn-off filament strand leaves the drawing system and is fed to the spinning device, the pair of rollers is referred to as a delivery roller pair. The delivery roller pair consists of an upper delivery roller and a lower delivery roller or delivery drum, which form a nip point through which the filament strands are fed. A device for compacting the drawn fiber strand is arranged downstream of the delivery roller pair. Mechanical and pneumatic thread pressing devices are used here.
Fig. 2 shows a side view of the thread pressing device 20 in the region of the delivery roller pair 5. For the sake of clarity, only the pair of delivery rollers 5 of the drafting system 2 of the two adjacent drafting systems 2, 2' is mentioned here. The top roller 6 presses against the output roller 7 and forms a nip point K1 therewith. The top roller 6 is rotatably attached to the loading unit 26 via a double top roller shaft ZO. The loading unit 26 is arranged here at the loading arm 19. When the loading arm 19 is closed, the upper delivery roller 6 is pressed against the delivery drum 7 by means of the loading spring 27. In the present embodiment, the loading unit 26 is attached to the loading arm 19 by a fastener 31, such as a clamping screw, which is slidable and fixable in the elongated hole. The fastening means in particular allow the sliding movement of the loading unit 26 in the slot. The position of the upper delivery roller 6 relative to the delivery drum 7 can be changed by adjusting the fastener in the slot and subsequently fixing it in the set position.
A pinch point K2 is created between the top roller 6 and the suction tube 17. For this purpose, the support 25 with the suction tube 17 is pressed against the upper delivery roller 6 by means of a spring 21. At the other end, the support 25 is rotatably and tiltably mounted on the axis of rotation DH of the support 25 in bearings 45, so that both a rotatable feed to the pair of delivery rollers 5 and possible tolerances of the top roller 6 on the double top roller axis ZO can be compensated for by the tilting movement. Between the bearing 45 and the suction tube 17 is arranged a spring 21 supported on the frame 28. The bearing 45 is received on the frame 28 and can be slid into place through the slot 33 in the bearing block 44. By adjusting the bearing 45 in the elongated hole 33 and subsequently fixing it in the set position, the position of the suction tube 17 relative to the upper delivery roller 6 and relative to the delivery cylinder 7 can be changed. This gives optimum adjustability of the position of the suction tube 17 relative to the clamping point K2 on the output drum 7 and the output top roller 6. This allows the different filament materials of the filament strand 8 to be fed in and an optimum arrangement to be sought for. Furthermore, it is ensured that the thread-pressing device 20 remains in position when the loading arm 19 is lifted to open the drafting system 2. The basic arrangement of the suction tube 17 relative to the delivery roller pair 5, in particular relative to the upper delivery roller 6, is not changed, even though the suction tube 17 can in this case be pivoted further in the direction of the delivery drum 7.
The suction duct 17 has a suction slot 32 (fig. 3), through which slot 32 air is sucked in. The fiber strands 8 are bundled and compacted at the suction slot 32. In order that the filaments of the filament strand 8 are not sucked into the suction channel 32, the suction channel 32 is surrounded by the screen 18.
Referring to fig. 3, the top rollers 6, 6 'of the two parallel drafting systems 2, 2' are attached to a loading arm 19. The top rollers 6, 6' are arranged in a two-roller manner by means of a double top roller shaft ZO at the loading unit 26 of the loading arm 19. Each of the top rollers 6, 6' projects laterally beyond the loading arm 19. Correspondingly, the two thread pressing devices 20 of the adjacent drafting systems 2, 2' are also associated with the loading arm 19. The two thread-pressing devices 20 are of separate construction and are each associated with a drafting system 2, 2'.
Fig. 3 shows a front view of the loading arm 19 and two adjacent drafting systems 2, 2' according to an embodiment similar to fig. 2. The two upper delivery rollers 6, 6' are rotatably attached as double upper rollers to the loading unit 26 via a double upper roller shaft ZO. The loading unit 26 is arranged here at the loading arm 19. Each upper delivery roller 6, 6' of adjacent drafting systems is associated with a suction duct 17, 17' and with a support 25, 25' that can move independently of one another. In order to establish a respective clamping point K2 (fig. 2) between the upper delivery roller 6, 6 'and the suction tube 17, 17', the support 25, 25 'and the suction tube 17, 17' are pressed against the delivery upper roller 6, 6 'by means of a respective spring 21, 21'. At the other end, the supports can each be arranged independently of one another in bearings 45, 45' rotatably and in turn tiltably on the rotational axes DH, DH ' of the supports 25, 25 '. In this way, the respective carriage 25, 25' can be rotatably fed to the upper delivery roller 6, 6' and possible tolerances of the upper roller 6, 6' on the double upper roller axis ZO can be compensated by tilting.
The rotation axes DH, DH ' of the brackets 25, 25' are attached to the frame 28 by bearing blocks 44, 44 '. Here, in order to ensure the replaceability of the supports 25, 25', one of the two bearing blocks 44, 44' of two adjacent drafting systems 2, 2' is detachably connected to the frame 28.
Between the bearings 45, 45' and the suction pipes 17, 17' there are arranged springs 21, 21' supported on the frame 28. By attaching the suction pipes 17, 17' to the machine frame 28 via the brackets 25, 25', the filament pressing devices 20 of adjacent drafting systems 2, 2' can maintain their arrangement even when the top roller is lifted from the bottom roller by means of the loading arm 19.
The brackets 25, 25' are connected to the suction ducts 24, 24' in the region of the suction ducts 17, 17 '. Air is drawn from the suction ducts 17, 17' through the suction ducts 24, 24' and is sucked out through the suction slots 32, 32 '. The fiber strands 8 (fig. 2) are bundled and compacted at these suction slots 32, 32'. In order that the filaments from the filament strand 8 are not sucked into the suction slots 32, 32', these suction slots 32, 32' are surrounded by the screens 18, 18 '. The function of the suction duct 17, 17', suction duct 24, 24', support 25, 25 'and/or bearing 45, 45' can be designed as a multiple-piece individual part in the drafting system or as a one-piece integral unit as shown in the figure. It is provided that the suction ducts 24, 24 'are flexible and can follow the corresponding movements of the supports 25, 25'.
Fig. 4 shows a front view of the loading arm 19 and two adjacent drafting systems 2, 2' according to another embodiment. Similarly to fig. 3, the two upper delivery rollers 6, 6' are here also arranged on the loading arm 19 as double rollers rotatably attached to the loading unit 26 via a double upper roller shaft ZO. Each upper delivery roller 6, 6 'of adjacent drafting systems 2, 2' is associated with a suction tube 17, 17 'and a support 25, 25' that can move independently of one another. Pneumatic members 21, 21' (for example pneumatic springs) are used to press the respective suction tube 17, 17' against the upper delivery roller 6, 6 '. In this application example, the pneumatic members 21 and 21' are also supported by the frame 28. At the other end, the supports 25, 25 'are both arranged in bearings 45, 45', which are rotatable and tiltable about a common axis of rotation DH. But due to the decoupled configuration of the brackets 25, 25' and the bearings 45, 45', the brackets 25, 25' may move independently of each other. The rotation axis DH may be provided only for two adjacent drafting systems 2, 2' and thus ensure the pushing of the carriages 25, 25', or the rotation axis DH may extend through a plurality of drafting systems 2, 2' or loading arms 19. For example, when the rotation axis DH extends through a plurality of drafting systems 2, 2', openings can be provided in the bearings 45, 45' of the supports 25, 25 'to ensure that the bearings 45, 45' are plugged onto the rotation axis DH. Here, bearing blocks 44, 44' connect the rotary shaft DH to the frame 28.
In the present application example, the suction pipes 17, 17 'are both connected to a common suction pipe 24 via bellows 30, 30'. In this way, the suction ducts 34 of the static part and the suction ducts 17, 17 'of two adjacent drafting systems 2, 2' can be pneumatically coupled to each other. The elastic attachment of the suction ducts 17, 17 'via the respective bellows 30, 30' ensures that the suction ducts 17, 17 'can be fed independently movable to the respectively associated upper output roller 6, 6' despite being coupled to the static part suction duct 34. By applying a common suction duct, in particular a common static partial suction duct 34, for two adjacent drafting systems 2, 2', it is not easy to individually adjust the two underpressure at the suction slots 32, 32' compared to the embodiment shown in fig. 3. The structure of the device is simplified. It is also conceivable that two mutually independent pneumatic static partial suction ducts 34, 34' are connected to the suction ducts 17, 17' via bellows 30, 30', so as to ensure that the underpressure can be individually adjusted in a similar configuration.
Air is sucked out of the suction pipes 17, 17 'through the static part suction pipe 34 and is sucked away through the suction channels 32, 32'. The fiber strands 8 (fig. 2) are bundled and compacted at these suction slots 32, 32'. In order that the filaments from the filament strand 8 are not sucked into the suction slots 32, 32', these suction slots 32, 32' are surrounded by the screens 18, 18 '. Here, the screens 18, 18 'are tensioned by means of tensioning elements 22, 22'. In the example of use shown, the supports 25, 25 'each form two legs spaced apart from one another, at the ends of which the suction pipes 17, 17' are arranged. The tensioning elements 22, 22' are arranged in the gap created here. As outlined herein, these tensioning elements 22, 22 'may each have a shaft and two levers, ensuring deflection and tensioning of the screens 18, 18'. In contrast to the embodiment of fig. 3, only the support 25, 25 'and the bearing 45, 45' are of one-piece design here. The suction pipes 17, 17', bellows 30, 30' and the static part suction pipe 34 are designed as separate parts and can be fixed to each other and to the two supports 25, 25', for example by means of screws.
Fig. 5 shows a side view of the thread pressing device 20 in the region of the delivery roller pair 5 according to a further application example. For the sake of clarity, only the pairs of delivery rollers 5 of the drafting system 2 of two adjacent drafting systems 2, 2' are mentioned here. The arrangement of the delivery roller pair 5 and the adjustability of the clamping point K1 are similar to the application example in fig. 1.
In contrast to fig. 2, the suction tube 17 is pressed against the lower delivery roller 7, which forms the clamping point K2. For this purpose, the support 25 with the suction tube 17 is pressed against the lower delivery roller 7 by means of a spring 21. At the other end, the support 25 is rotatably and tiltably mounted on the axis of rotation DH of the support 25 in bearings 45, so that both a rotatable feed to the pair of output rollers 5 and possible tolerances of the bottom rollers 7 on the double bottom roller shaft ZU can be compensated by a tilting movement. Between the bearing 45 and the suction tube 17 is arranged a spring 21 supported on a loading arm 19 by means of a bearing 40. When the top roller is lifted by means of the loading arm 19, the support 25 and the suction tube 17 are thereby also lifted. The arrangement of the suction tube 17 relative to the delivery roller pair 5 is unchanged. It is also conceivable to achieve adjustability by means of a bearing 45 which can be slid in the longitudinal direction. The pinch point K2 can be set independently of the pinch point K1.
Fig. 6 schematically shows the bearing 45 shown in fig. 2 to 5 in a mounted state. Thus, the bearing 45 of the bracket 25 can be tilted about the rotation axis DH as the through-hole is enlarged from the inside to the outside. The support 25 and the suction tube 17 can thus be oriented parallel to the associated roller of the delivery roller pair 5. If the through-hole is circularly widened, the bearing 45 may be inclined toward each side. However, if widening is done in only one direction, tilting can only be achieved in that direction. The effect of this is that the suction tube 17 can only be tilted relative to the roller concerned in the delivery roller pair 5, so that it can bear linearly against the roller concerned without the distance from the second clamping point K2 being substantially changed. The positions shown in dashed lines in this figure represent different tilt positions of the bearing 45 of the support 25 about the axis of rotation DH.
The invention is not limited to the embodiments shown in the drawings and described herein. Combinations of features shown and described in different embodiments are equally possible within the scope of the claims.
List of reference numerals
1 filament strand
2 draft system
3 input roller pair
4 drive roller pair
5 output roller pair
6 upper delivery roller
7 lower delivery roller, delivery drum
8 draft fiber strand
9 thread guide
10 spinning apparatus
11 revolving cup
12 spinning ring
13 winding
14 ring stand
15 spindle platform
16 filament bundling zone
17 suction tube
18 sifter
19 load arm
20 wire pressing device
21 spring, pneumatic element
22 tensioning device
24 air suction pipe
25 support
26 Loading unit
27 loading spring
28 frame
30 corrugated pipe
31 fastener
32 suction groove
33 Long hole
34 suction pipe (static part)
40 support part
44 bearing seat
45 bearing
D loading arm pivot point
Direction of arrow P
DH support rotating shaft
ZO double upper roller shaft
ZU double bottom roller shaft
K1 first clamping Point
K2 second clamping point
Claims (13)
1. Spinning machine with a plurality of drafting systems (2), said drafting systems (2) each comprising:
-a top roller and a bottom roller;
-a loading arm (19) for two adjacent drafting systems (2, 2'), where the top rollers of the drafting system (2) are arranged as double rollers of the two adjacent drafting systems (2, 2');
-a pair of delivery rollers (5) consisting of an upper delivery roller (6) and a lower delivery roller (7), in particular a delivery drum (7); and
-a pneumatic filament pressing device (20) downstream of the pair of delivery rollers (5) of the drafting system (2) for compacting the drafted filament strand (8),
-the thread-pressing device has a suction tube (17) that can be sucked,
-the suction duct (17) is wrapped by a sieve (18) and arranged on a support (25),
-the support (25) is movably arranged in a bearing (45), and
-elastically pressing the suction tube (17) against a roller in the delivery roller pair (5) of an adjacent drafting system (2, 2') by means of the support (25),
it is characterized in that the preparation method is characterized in that,
-two supports (25, 25') movable independently of each other and their suction pipes (17, 17') are arranged at two adjacent drafting systems (2, 2') of the loading arm (19), and
-each of said two supports (25, 25') and each of said suction ducts (17, 17') being movable only to feed one of the adjacent drafting systems (2, 2'), in particular one of the double rollers in the pair of output rollers (5) of the adjacent drafting system (2, 2').
2. Spinning machine according to the preceding claim, characterized in that the brackets (25, 25') are slidably, rotatably and/or tiltably arranged in the bearings (45, 45') to orient the suction duct (17, 17') parallel to the relative rollers of the pair of delivery rollers (5).
3. Spinning machine according to one or more of the preceding claims, characterised in that springs (21, 21') and/or pneumatics are arranged on the supports (25, 25') for elastically pressing the suction tubes (17, 17') against the relevant rollers in the delivery roller pair (5).
4. Spinning machine according to one or more of the preceding claims,
-said carriage (25, 25') is associated with said loading arm (19), with a double upper roller shaft (ZO) or with a loading unit (26) arranged at said loading arm (19), wherein said suction duct (17, 17') is pressed by said carriage (25, 25') against said upper output roller (6, 6') and/or said lower output roller (7, 7'), in particular said output drum; or
-the bracket (25, 25') is associated with a machine frame (28) or a double lower roller (ZU), wherein the suction duct (17, 17') is pressed by the bracket (25, 25') against the upper output roller (6, 6') and/or the lower output roller (7, 7'), in particular the output drum.
5. Spinning machine according to one or more of the preceding claims, characterized in that said spring (21, 21') and/or said pneumatic element are supported on said loading arm (19) or on said frame (28).
6. Spinning machine according to one or more of the preceding claims, characterised in that the spring (21, 21') and/or the pneumatic element are arranged substantially centrally at the relevant roller of the pair of delivery rollers (5).
7. Spinning machine according to one or more of the preceding claims, characterized in that the spring (21, 21') and/or the pneumatic member are arranged between the bearing (45, 45') and the suction tube (17, 17 ').
8. Spinning machine according to one or more of the preceding claims,
the filament pressing device (20) has a filament bundling zone (16), and
the filament bundling zone (16) is delimited by two clamping points (K1, K2),
-wherein a first clamping point (K1) is defined by two of the delivery roller pairs (5), and
-a second nip point (K2) is formed by a roller, in particular one of the two rollers of the delivery roller pair (5), and the screen (18, 18').
9. Spinning machine according to one or more of the preceding claims, characterised in that the suction tube (17, 17') is connected with the tensioning device (22, 22') for the sieve (18, 18 ').
10. Spinning machine according to one or more of the preceding claims, characterised in that a suction duct (24, 24') is arranged at the bracket (25, 25') or the suction duct (17, 17 ').
11. Spinning machine according to one or more of the preceding claims, characterized in that at the suction duct (24, 24') at least one elastic connection, in particular at least one bellows (30, 30'), is arranged for elastically connecting the suction duct (24, 24') to the suction duct (17, 17') and/or to a second, in particular static, part suction duct (34).
12. Spinning machine according to one or more of the preceding claims,
-each suction duct (17, 17') of adjacent drawing systems (2, 2') is associated with a suction duct (24, 24 '); or
-two adjacent suction ducts (17, 17') opening into a common suction duct (24).
13. Spinning machine according to one or more of the preceding claims, characterized in that the bracket (25, 25'), the bearing (45, 45'), the suction tube (17, 17') and/or the suction tube (25, 25') are integrally formed, in particular made of plastic.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019115220.8A DE102019115220A1 (en) | 2019-06-05 | 2019-06-05 | Spinning machine |
| DE102019115220.8 | 2019-06-05 | ||
| PCT/EP2020/065483 WO2020245271A1 (en) | 2019-06-05 | 2020-06-04 | Spinning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114072549A true CN114072549A (en) | 2022-02-18 |
| CN114072549B CN114072549B (en) | 2023-06-30 |
Family
ID=71069827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080039978.2A Active CN114072549B (en) | 2019-06-05 | 2020-06-04 | Spinning machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114072549B (en) |
| DE (1) | DE102019115220A1 (en) |
| WO (1) | WO2020245271A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022107513A1 (en) | 2022-03-30 | 2023-10-05 | Maschinenfabrik Rieter Ag | Device for pneumatically compressing a stretched fiber structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3533138A (en) * | 1968-09-06 | 1970-10-13 | Warner Swasey Co | Apparatus and method for producing high density textile sliver |
| DE29822763U1 (en) * | 1998-04-07 | 1999-03-18 | Zinser Textilmaschinen Gmbh, 73061 Ebersbach | Device for compression spinning on a spinning machine, in particular a ring spinning machine |
| CN1589341A (en) * | 2001-09-14 | 2005-03-02 | 里特机械公司 | Spinning machine with creel device |
| EP1930488A1 (en) * | 2006-12-09 | 2008-06-11 | Maschinenfabrik Rieter Ag | Spinning machine comprising compacting devices |
| WO2013140215A1 (en) * | 2012-03-21 | 2013-09-26 | Maschinenfabrik Rieter Ag | Carrier element for a compaction device |
| JP2014019990A (en) * | 2012-07-23 | 2014-02-03 | Toyota Industries Corp | Pneumatic clearer device in spinning machine |
| EP2865794A1 (en) * | 2013-10-28 | 2015-04-29 | Maschinenfabrik Rieter Ag | Spinning frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017130219A1 (en) * | 2017-12-15 | 2019-06-19 | Maschinenfabrik Rieter Ag | Spinning machine and compacting device |
| DE102017130224A1 (en) * | 2017-12-15 | 2019-06-19 | Maschinenfabrik Rieter Ag | Drafting and compacting device for a spinning machine |
-
2019
- 2019-06-05 DE DE102019115220.8A patent/DE102019115220A1/en not_active Withdrawn
-
2020
- 2020-06-04 WO PCT/EP2020/065483 patent/WO2020245271A1/en active Application Filing
- 2020-06-04 CN CN202080039978.2A patent/CN114072549B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3533138A (en) * | 1968-09-06 | 1970-10-13 | Warner Swasey Co | Apparatus and method for producing high density textile sliver |
| DE29822763U1 (en) * | 1998-04-07 | 1999-03-18 | Zinser Textilmaschinen Gmbh, 73061 Ebersbach | Device for compression spinning on a spinning machine, in particular a ring spinning machine |
| CN1589341A (en) * | 2001-09-14 | 2005-03-02 | 里特机械公司 | Spinning machine with creel device |
| EP1930488A1 (en) * | 2006-12-09 | 2008-06-11 | Maschinenfabrik Rieter Ag | Spinning machine comprising compacting devices |
| WO2013140215A1 (en) * | 2012-03-21 | 2013-09-26 | Maschinenfabrik Rieter Ag | Carrier element for a compaction device |
| JP2014019990A (en) * | 2012-07-23 | 2014-02-03 | Toyota Industries Corp | Pneumatic clearer device in spinning machine |
| EP2865794A1 (en) * | 2013-10-28 | 2015-04-29 | Maschinenfabrik Rieter Ag | Spinning frame |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019115220A1 (en) | 2020-12-10 |
| CN114072549B (en) | 2023-06-30 |
| WO2020245271A1 (en) | 2020-12-10 |
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