CN111748879B - Spinning unit of rotor spinning machine and component of spinning unit - Google Patents
Spinning unit of rotor spinning machine and component of spinning unit Download PDFInfo
- Publication number
- CN111748879B CN111748879B CN202010231189.0A CN202010231189A CN111748879B CN 111748879 B CN111748879 B CN 111748879B CN 202010231189 A CN202010231189 A CN 202010231189A CN 111748879 B CN111748879 B CN 111748879B
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- Prior art keywords
- opening
- cleaning
- spinning unit
- main body
- spinning
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
- D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/22—Cleaning of running surfaces
- D01H4/24—Cleaning of running surfaces in rotor spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
- D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/38—Channels for feeding fibres to the yarn forming region
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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 unit of a rotor spinning machine, comprising an opening roller (20) arranged in a cavity (21) of an opening device (2), whereby a transport channel (22) for opened fibres is formed between the circumferential surface of the opening roller (20) and a circumferential wall (23) of the cavity (21) of the opening device (2), in the direction of rotation (X) of the opening roller (20), a fibre sliver inlet opening (230), a cleaning opening (231) and a fibre outlet opening (232) open into the transport channel (22), the cleaning opening (231) being followed by a channel (24) for removing impurities from the transport channel (22), the fibre outlet opening (232) being followed by a fibre outlet channel (25) to a chamber (3) of a spinning rotor.
Description
Technical Field
The invention relates to a spinning unit of a rotor spinning machine, comprising an opening roller arranged in a cavity of an opening device, whereby a channel for the transport of opened fibers is formed between a circumferential surface of the opening roller and a circumferential wall of the cavity of the opening device, in a direction of rotation of the opening roller, a fiber sliver inlet opening, a cleaning opening and a fiber outlet opening open into the channel, the cleaning opening being connected to the channel for removing impurities from the transport channel, the fiber outlet opening being connected to a chamber of the spinning rotor through the fiber outlet channel.
Furthermore, the invention relates to a component of the spinning unit.
Background
CZ 286 088 discloses a spinning unit of a rotor spinning machine, the spinning unit comprising an opening roller arranged in a cavity of a spinning unit body. A conveying channel of the opened fiber is formed between the circumferential surface of the opening roller and the inner surface of the cavity of the main body, the opened fiber being opened by the opening roller from the sliver supplied by the sliver feeding device, whereby the opened fiber is conveyed by the opening roller along the impurity removing channel up to the mouth of the feeding channel of the spinning rotor. The inner surface of the cavity of the spinning unit body surrounds the opening roller and forms a conveying passage together with the opening roller. The inner surface of the cavity is in a section from the sliver feeding device up to the rear of the fibre feed channel into the spinning rotor, which is formed on the front side of a pair of bodies, which are replaceably mounted on the spinning unit body. Likewise, these bodies are known, for example, from CZ UV 5537, CZ UV 5599, CZ 299259 and others, in particular in the direction from the sliver feeding device, firstly a guide body with impurity removal channels and then a separating body downstream of the guide body with feed channels of opened fibers to the spinning rotor.
A disadvantage of these solutions is the formation of fiber transport channels in which the entire respective portion of the wall surrounding the opening roller and the corresponding channel are formed in a removable body, with high demands on the material. Since the leading edge of the channel is subject to the greatest wear and the other parts of the respective body have a longer service life, the replacement of the respective body is material-consuming and time-consuming. Also, it is disadvantageous that it is necessary to change the size and/or shape and/or profile of the respective channels in the respective bodies, since the size and/or shape and/or profile of the channels is highly dependent on the treated fibre material and its purity as it enters the spinning unit. Finally, the replacement of the spinning unit body requires a relatively large installation space with respect to the size of the spinning unit.
It is therefore an object of the present invention to obviate or at least mitigate the disadvantages of the background art.
Disclosure of Invention
The object of the invention is achieved by a spinning unit of a rotor spinning machine, which principle is that the circumferential wall of the cavity of the opening device completely closes the cavity of the opening device, whereby the circumferential wall is formed by the front wall of the body only in the area of the cleaning opening and/or the outlet opening, which front wall of the body is removably and tightly inserted into a gap in the circumferential wall, wherein the front wall of the body is connected at its front and rear ends to adjacent fixed parts of the circumferential wall of the opening device.
This solution allows easy, time-saving and inexpensive replacement of the body to restore the characteristics of the spinning unit or to adjust or change the characteristics of the spinning unit according to the treated material, its purity, density, the length of the individual fibres, etc.
In order to promote interchangeability and interchangeability, the body has a lower surface and an upper surface that remain aligned with adjacent components of the spinning unit, wherein the side surface of the body (by which the body abuts the adjacent surface of the body of the opening device) is in the region of the circumferential wall of the opening device, which is located in the chordwise or radial direction with respect to the opening roller.
In order to form the entire inclined channel in the main body, it is advantageous if the rear lateral surface is spaced apart from the circumferential wall of the opening device in relation to the opening roller from the original chord or radial direction and is turned away from the central part of the main body to provide space for the entire inclined channel.
In order to facilitate the deep positioning of the body relative to the rest of the spinning unit, the body is provided with an abutment edge on its rear side along its height.
From the point of view of easy access to mutually interchangeable bodies in the spinning unit, it is advantageous if the opening device is assigned at least two bodies having the same outer dimensions and the same outer shape and having cleaning openings or outlet openings of different sizes and/or shapes, or two bodies having different sizes, shapes, cross sections, channel inclinations and/or having different surface finishes and/or being made of different materials.
From a material and production point of view, according to one embodiment it is advantageous if the body has an angular length of the front wall in the range of 15 ° to 80 °.
It is also advantageous from a material and production point of view that the total area size of the cleaning opening or the outlet opening of the main body is in the range of 20% to 80% of the total area of its front wall.
According to one embodiment, the opening of the body has a front edge, which is arranged at the level of the front side of the body and at the same time is located at a corner distance from the front end of the front wall of the body. This is particularly advantageous for treating fibrous materials with low impurity levels.
According to another embodiment, the opening of the body has a front edge which is arranged at the level of the front end of the front side of the body and at the same time at the front end of the front side of the body at a zero angular distance from the front end of the front side of the body, which is particularly advantageous for more efficient impurity removal from the fibrous material.
According to a further embodiment, the opening of the body has a front edge which is arranged at a horizontal distance from the front wall of the body and at the same time forms a step extension of the channel at a horizontal distance from the front end of the front wall of the body. This is particularly advantageous for increased impurity removal from fibrous materials having a high impurity content.
Advantageously, the body is a cleaning body or an output body.
The principle of the components of the spinning unit of the rotor spinning machine in the form of separately supplied components (e.g. spare parts or accessories) lies in the fact that: the component is formed by a body adapted to be removably and tightly inserted into a gap in the circumferential wall, whereby the front wall of the body is adapted at its front and rear ends to engage adjacent fixed portions of the circumferential wall of the opening device. In this case, it is advantageous if the component consists of a cleaning body or an output body.
Drawings
The invention is schematically represented in the drawings, wherein fig. 1 shows an arrangement of a spinning unit according to an embodiment of the invention, fig. 2 shows an arrangement of a spinning unit according to an embodiment of the invention with an opening roller removed, fig. 3 shows an exploded view of an arrangement of a spinning unit according to an embodiment of the invention; fig. 4 shows an example of a cleaning body according to the present invention; fig. 5 shows an example of an output body according to the present invention; FIG. 6a is a plan view of another embodiment of a body according to the present invention; FIG. 6b is a plan view of another embodiment of a body according to the present invention; fig. 6c is a plan view of another embodiment of a body according to the present invention.
Detailed Description
The rotor spinning machine comprises at least one row of identical work stations, whereby each work station comprises a spinning unit in which the yarn is formed from a supplied sliver, from which the yarn is unwound or from a spinning rotor through an extraction tube 4 and wound onto a bobbin.
The spinning unit comprises a sliver feeding device 1, the sliver feeding device 1 being assigned to a fiber opening device 2. The opening device 2 is used for opening fibres from sliver and for transporting the opened fibres to the chamber 3 of the spinning rotor.
The sliver feeding device 1 comprises a feed roller 10, the feed roller 10 being coupled to a drive and a not shown sliver feed table (also called sliver collector) assigned to the feed roller 10.
The opening device 2 comprises an opening roller 20, the opening roller 20 being rotatably mounted in a cavity 21 formed in the body of the spinning unit. The cylindrical surface of the opening roller 20 is provided with a not shown working mantle consisting of teeth or needles, by means of which the individual fibers are pulled from the sliver in the region of the sliver feeding device 1 and transported to the chamber 3 of the spinning rotor through a transport channel 22 formed by the circumferential wall 23 of the opening device 2 around the cylindrical working mantle of the opening roller 20.
The cavity 21 of the opening device 2 may come from the upper side closed by a not shown cover (e.g. by a cover of the spinning unit or a separate cover, etc.).
In the region of the sliver feed device 1, a sliver feed opening 230 into the opening device 2 is formed in the circumferential wall 23 of the opening device 2.
In the direction X downstream of the inlet opening 230, a cleaning opening 231 is formed in the peripheral wall 23 of the opening device 2, the cleaning opening 231 leading to a channel 24 for removing impurities from the conveying channel 22, i.e. impurities released from the fibers by the opening roller 20 by opening and by conveying these fibers through the conveying channel 22 to the chamber 3 of the spinning rotor. The impurity removal channel 24 from the transport channel 22 leads to a vacuum channel 5, which vacuum channel 5 is connected in a known manner to a vacuum source not shown.
In the downstream direction X of the cleaning opening 231, a fiber outlet opening 232 is formed in the circumferential wall 23 of the opening device 2. The fiber outlet opening 232 opens into the open and impurity-free fiber outlet channel 25 to the spinning rotor chamber 3.
The circumferential wall 23 of the opening device 2 continues along the opening roller 20 in a direction X downstream of the fiber outlet opening 232 up to the sliver inlet opening 230. Thus, the entire circumference of the opening roller 20 is surrounded by the circumferential wall 23 of the opening device 2 with the respective openings 230, 231, 232.
The cleaning opening 231 is formed in the individual cleaning main body 6 together with the impurity removing channel 24 from the conveying channel 22, the individual cleaning main body 6 being tightly inserted into the gap 26 in the circumferential wall 23, whereby the front wall 60 of the cleaning main body 6 forms a part of the circumferential wall 23 of the opening device 2 at this inserted position. At the front end 600 and the rear end 601 of the front wall 60, the circumferential wall 23 smoothly engages adjacent fixing portions 233, 234 of the circumferential wall 23 of the opening device 2. The cleaning body 6 is fixed to the body of the spinning unit, for example, with screws. The lower surface 602 and the upper surface 603 of the cleaning body 6 remain aligned with the adjacent parts of the spinning unit (i.e. the body of the unit and the cover of the opening device 2). The lateral surfaces 604, 605 of the cleaning body 6 (adjacent surfaces of the cleaning body 6 abutting the body of the spinning unit via the lateral surfaces 604, 605) are in a region remote from the circumferential wall 23 of the opening device 2, the circumferential wall 23 being located in a chordwise or radial direction with respect to the opening roller 20, whereby in fig. 3 the rear lateral surface 605 is at a distance from the circumferential wall 23 of the opening device 2, the circumferential wall 23 being offset from the original chordwise or radial direction with respect to the opening roller 20 from the central part of the cleaning body 6, thereby forming a space in the volume of the cleaning body 6 for accommodating the entire oblique impurity removal channel 24 in the cleaning body 6 with the desired size and geometry of the impurity removal channel 24. An abutment edge 61 is arranged on the rear side of the cleaning body 6 along the height of the cleaning body 6, the abutment edge 61 determining the extent to which the cleaning body 6 is inserted into the gap 26 and thereby also the position of the cleaning body 6 and its front wall 60 relative to the other parts of the opening device 2. Due to the front wall 60, the rear wall, the lateral surfaces 604, 605 and the lower and upper surfaces 602, 603 of the cleaning body 6, the cleaning body 6 has precisely the desired shape and dimensions, which allows repeated removal of the cleaning body 6 from the opening device 2 and insertion into the opening device 2. The size and shape of the cleaning opening 231 and the size, shape, cross section and inclination of the impurity removing channels 24 formed in the cleaning body 6 are determined by the characteristics of the fiber material being treated.
Preferably, at least two cleaning bodies 6 are allocated to one spinning unit, whereby the two cleaning bodies 6 have the same outer dimensions and the same outer shape, but differ in the size and/or shape of the cleaning opening 231, and/or the two cleaning bodies 6 differ in the size, cross section, inclination of the impurity removal channel 24, and/or the two cleaning bodies 6 have different finishes, and/or the two cleaning bodies 6 are made of different materials. Since such cleaning bodies 6 are relatively small and manufactured with sufficient precision, the cleaning bodies 6 can also be replaced easily not only with new unworn cleaning bodies with identical cleaning openings 231 and with identical impurity removal channels 24, but also with cleaning bodies 6 with different cleaning openings 231 and/or different impurity removal channels 24 and/or with cleaning bodies 6 with different finishes and/or made of different materials, if desired. The outer size and shape of the cleaning main body 6 are always the same. These additional cleaning bodies 6 constitute an attachment for the spinning unit for different types of fibre materials to be treated and/or materials with different impurity contents. The circumferential angle α of the front wall 60 of the cleaning main body 6 is in the range from 20 ° to 45 °. The total surface area of the cleaning openings 231 constitutes 20% to 80% of the total area of the front wall 60 of the cleaning body 6.
As shown in fig. 6a, the front edge 2310 of the cleaning opening 231 is disposed at the level of the front wall 60 of the cleaning body 6, and at the same time, the front edge 2310 is located at an angular distance α from the front end 600 of the front wall 60 of the cleaning body 6 1 Where it is located.
As shown in fig. 6b, the front edge 2310 of the cleaning opening 231 is arranged at the level of the front wall 60 of the cleaning body 6, and at the same time, the front edge 2310 are located at the level of the front end 600 of the front wall 60 of the cleaning body 6 such that the angular distance a according to fig. 6b 1 Equal to 0 (zero).
As shown in fig. 6c, the front edge 2310 of the cleaning opening 231 is disposed at a horizontal distance Z from the front wall 60 of the cleaning main body 6, and at the same time, also at a horizontal distance from the front end 600 of the front wall 60 of the cleaning main body 6, thereby forming a stepped extension of the impurity removing channel 24 therein.
In the exemplary embodiment shown, the fiber outlet openings 232 and the outlet channels 25 of the opened impurity-free fibers are also provided in a separate output body 7, the separate output body 7 being tightly inserted into the gap 27 in the circumferential wall 23, whereby the front wall 70 of the output body 7 forms part of the circumferential wall 23 of the opening device 2 in this inserted position, the front wall 70 being smoothly connected by its ends 700, 701 to adjacent fixing portions 235, 236 of the circumferential wall 23 of the opening device 2. The output body 7 is fixed to the body of the spinning unit, for example with screws. The lower surface 702 and the upper surface 703 of the output body 7 remain aligned with the adjacent portions of the spinning unit (i.e. with the body of the unit and the cover of the opening device 2). The lateral surfaces 704, 705 of the output body 7 (adjacent areas of the output body 7 adjoining the body of the spinning unit by means of the lateral surfaces 704, 705) are in an area remote from the circumferential wall 23 of the opening device 2, the circumferential wall 23 being located in the chord and radial direction with respect to the opening roller 20, whereby in fig. 3 the rear lateral surface 705 at a distance from the circumferential wall 23 of the opening device 2 continues in the form of a wall forming an oblique fiber outlet channel 25 in the volume of the output body 7, with the desired size and geometry of the fiber outlet channel 25. The abutment edge 71 is arranged on the rear side of the output body 7 along the height of the output body 7. The abutment edge 71 determines the extent to which the output body 7 is inserted into the gap 27 and thus also the position of the output body 7 and its front wall 70 relative to the rest of the opening device 2. Due to the front wall 70, the rear wall, the lateral surfaces 704, 705 and the lower and upper surfaces 702, 702 of the output body 7, the output body 7 happens to have the desired shape and size 703, which allows repeated removal and insertion of the output body 7 from the opening device 2 into the opening device 2. The size and shape of the outlet opening 232 and the size, shape, cross-section and inclination of the fiber outlet channel 25 in the output body 7 are determined by the properties of the treated fiber material.
Preferably, at least two outlet bodies 7 are assigned to one spinning unit, whereby the outlet bodies 7 have the same outer dimensions and the same outer shape, but differ in the size and/or shape of the outlet opening 232, and/or the outlet bodies 7 differ in the size, shape, cross section, inclination of the fibre outlet channel 25, and/or the outlet bodies 7 have different finishes and/or are made of different materials. Since the output body 7 is relatively small and manufactured with sufficient precision, the output body 7 can also be replaced easily not only with a new unworn output body 7 with the same outlet opening 232 and the same fiber outlet channel 25, but if desired the output body 7 can also be replaced with an output body 7 with a different outlet opening 232, with an output body 7 with a different fiber outlet channel 25 or with an output body 7 with a different finish or with an output body 7 made of a different material. The outer dimensions and shape of the output body 7 are always the same. These additional output bodies 7 then constitute accessories for the spinning unit for the different types of fibre materials to be treated. The angular length β of the front wall 70 of the output body 7 is in the range from 15 ° to 30 °. The total surface area of the outlet openings 232 constitutes 20% to 80% of the total area of the front wall 70 of the output body 7.
In the embodiment shown, the front edge 2320 of the outlet opening 232 is arranged at the level of the front wall 70 of the output body 7, and at the same time, the front edge 2320 is located at an angular distance β1 from the front end 700 of the front wall 70 of the output body 7.
In an embodiment (not shown), the front edge 2320 of the outlet opening 232 is provided at the level of the front wall 70 of the output body 7, and at the same time, the front edge 2320 is located at the level of the front end 700 of the front wall 70 of the output body 7 such that the angular distance β1 is equal to 0 (zero).
In another embodiment (not shown), the front edge 2320 of the outlet opening 232 is arranged at a horizontal distance from the front wall 70 of the output body 7 and at the same time at a distance from the front end 700 of the front wall 70 of the output body 7, thereby forming a stepped extension of the fiber outlet channel 25.
In an exemplary embodiment (not shown), the spinning unit is provided with only the exchangeable cleaning body 6 according to the invention, and the fiber outlet opening 232 and the fiber outlet channel 25 are solved in a different way and by other means. In another embodiment (not shown), the spinning unit is provided with only the exchangeable output body 7 according to the invention, and the cleaning opening 231 and the impurity removal channel 24 are solved in a different way and by other means.
List of reference numerals
1. Sliver feeding device
10. Sliver feed roller
2. Opening device
20. Opening roller
21. Cavity cavity
22. Conveying channel
23. Circumferential wall
230. Sliver inlet opening
231. Cleaning the opening
2310. Cleaning the front edge of the opening
232. Outlet opening for fibers
2320. Front edge of output body
233. Fixing portion of circumferential wall
234. Fixing portion of circumferential wall
235. Fixing portion of circumferential wall
236. Fixing portion of circumferential wall
24. Impurity removing channel
25. Sliver outlet opening
26. Gaps in circumferential walls
27. Gaps in circumferential walls
3. Chamber of spinning rotor
5. Vacuum channel
6. Cleaning body
60. Front wall of cleaning main body
600. Front end of front wall of cleaning main body
601. Rear end of front wall of cleaning main body
602. The lower surface of the cleaning body
603. The upper surface of the cleaning body
604. Lateral surface of cleaning body
605. Lateral surface of cleaning body
61. Adjacent edges of the cleaning body
7. Output body
70. Front wall of output body
700. Front end of front wall of output body
701. Rear end of front wall of output body
702. Lower surface of output body
703. Upper surface of output body
704. Lateral surface of output body
705. Lateral surface of output body
71. Adjacent edge
Circumferential angle of front wall of alpha cleaning main body
α 1 Angular distance of front edge of cleaning opening at front end of front edge of cleaning main body
Circumferential angle of front wall of beta output body
β 1 Angular distance of front edge of outlet opening of front end of front wall of output main body
Direction of rotation of X-opening roller
Z distance of front edge of cleaning opening from horizontal of front wall of cleaning main body
Claims (15)
1. Spinning unit of a rotor spinning machine comprising an opening roller (20) arranged in a cavity (21) of an opening device (2), whereby a conveying channel (22) for the conveyance of opened fibers is formed between a circumferential surface of the opening roller (20) and a circumferential wall (23) of the cavity (21) of the opening device (2), a fiber sliver inlet opening (230), a cleaning opening (231) and a fiber outlet opening (232) open into the conveying channel (22) in a direction (X) of rotation of the opening roller (20), the cleaning opening (231) being connected to a first channel (24), for removing impurities from the conveying channel (22), the fiber outlet opening (232) being connected to the fiber outlet channel (25) to the chamber (3) of the spinning rotor, characterized in that the circumferential wall (23) of the cavity of the opening device (2) completely surrounds the cavity (21) of the opening device (2), whereby the circumferential wall (23) is formed by the front wall (60, 70) of the body (6, 7) only in the area of the cleaning opening (231) and/or the outlet opening (232), the cleaning opening (231) and/or the outlet opening (232) being located in the front wall (60), 70 And the body (6, 7) is removably and tightly inserted into a gap (26, 27) in the circumferential wall (23), wherein the front wall (60, 70) of the body (6, 7) is connected at its front and rear ends (600, 601, 700, 701) to adjacent fixed portions (233, 234, 235, 236) of the circumferential wall (23) of the opening device (2).
2. Spinning unit according to claim 1, wherein the body (6, 7) has a lower and an upper surface (602, 603, 702, 703) aligned with adjacent parts of the spinning unit, whereby the side surfaces (604, 605, 702, 703) of the body (6, 7) are in a region remote from the circumferential wall (23) of the opening device (2), which circumferential wall (23) is in chord or radial direction with respect to the opening roller (20), the body (6, 7) abutting the adjacent surfaces of the body of the opening device (2) by means of the side surfaces (604, 605, 702, 703).
3. Spinning unit according to claim 2, wherein the rear side surface (605, 705) of the main body (6, 7) is at a distance from the circumferential wall (23) of the opening device (2), which circumferential wall (23) deflects from the initial chord or radial direction from the central part of the main body (6, 7) to the opening roller (20) to provide a space for accommodating the entire inclined first channel (24) and the fiber outlet channel (25).
4. A spinning unit according to any one of claims 1 to 3, wherein the body (6, 7) is provided with abutment edges (61, 71) on its rear side and along its height.
5. A spinning unit according to any one of claims 1 to 3, wherein the opening device (2) is assigned at least two bodies (6, 7), the at least two bodies (6, 7) having the same outer dimensions and the same outer shape, and having the cleaning or outlet openings (231, 232) of different sizes and/or shapes, and/or having the first channels (24) and fiber outlet channels (25) of different sizes, shapes, cross sections, inclinations, and/or having different surface finishes, and/or being made of different materials.
6. A spinning unit according to any one of claims 1 to 3, wherein the body (6, 7) has an angular length a of the front wall in the range 15 ° to 80 °.
7. A spinning unit according to any one of claims 1 to 3, wherein the main body (6, 7) has a total area of the cleaning or outlet openings in the range of 20% to 80% of the total area of the front wall of the main body (6, 7).
8. A spinning unit according to any one of claims 1 to 3, wherein the cleaning or outlet opening (231, 232) of the main body (6, 7) has a front edge (2310, 2320), which front edge (2310, 2320) is arranged at the level of the front wall (60, 70) of the main body (6, 7) and at the same time at an angular distance (α1, β1) from the front end (600, 700) of the front wall (60, 70) of the main body (6, 7).
9. A spinning unit according to any one of claims 1 to 3, wherein the cleaning or outlet opening (231, 232) of the main body (6, 7) has a front edge (2310, 2320), which front edge (2310, 2320) is arranged at the level of the front wall (60, 70) of the main body and, at the same time, is located at the level of the front end (600, 700) of the front wall (60, 70) of the main body (6, 7) at a zero angular distance (α1, β1) from the front end (600, 700) of the front wall (60, 70) of the main body (6, 7).
10. A spinning unit according to any one of claims 1 to 3, wherein the cleaning or outlet opening (231, 232) of the main body (6, 7) has a front edge (2310, 2320), which front edge (2310, 2320) is spaced apart from the level of the front wall (60, 70) of the main body (6, 7) and, at the same time, from the level of the front end (600, 700) of the front wall (60, 70) of the main body (6, 7) and forms a step extension of the first channel (24) and fiber outlet channel (25) (24, 25).
11. A spinning unit according to any one of claims 1 to 3, wherein the body (6, 7) is formed by a cleaning body (6).
12. A spinning unit according to any one of claims 1 to 3, wherein said body (6, 7) is formed by an output body (7).
13. A component for a spinning unit of a rotor spinning machine according to any one of claims 1 to 12, characterized in that the component is formed by a body (6, 7), which body (6, 7) is adapted to be removably and tightly inserted into a gap (26, 27) in the circumferential wall (23), whereby the front wall (60, 70) of the body (6, 7) is adapted at its front and rear ends (600, 601, 700, 701) to be a continuation of an adjacent fixed portion (233, 234, 235, 236) of the circumferential wall (23) of the opening device (2).
14. A component of a spinning unit of a rotor spinning machine according to claim 13, characterized in that said component is formed by a cleaning body (6).
15. A component of a spinning unit of a rotor spinning machine according to claim 13, characterized in that said component is formed by an output body (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2019-187 | 2019-03-28 | ||
| CZ2019-187A CZ2019187A3 (en) | 2019-03-28 | 2019-03-28 | Spinning unit of a rotor spinning machine and a part of a spinning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111748879A CN111748879A (en) | 2020-10-09 |
| CN111748879B true CN111748879B (en) | 2023-10-20 |
Family
ID=69784166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010231189.0A Active CN111748879B (en) | 2019-03-28 | 2020-03-27 | Spinning unit of rotor spinning machine and component of spinning unit |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3719185A1 (en) |
| CN (1) | CN111748879B (en) |
| CZ (1) | CZ2019187A3 (en) |
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| DE2023235A1 (en) * | 1969-05-16 | 1970-11-19 | Vyzkumny ustav bavlnarsky, Üstl nad Orlicl (Tschechoslowakei)' | Device for spindleless spinning of staple material with rotating vacuum spinning chamber |
| GB1385513A (en) * | 1971-03-24 | 1975-02-26 | Vyzk Ustav Bavlnarsky | Method of and apparatus for removing impurities in a break spinnin process |
| US3884028A (en) * | 1972-06-28 | 1975-05-20 | Fritz Stahlecker | Apparatus for removing impurities from fibers |
| JPS5212335A (en) * | 1975-07-17 | 1977-01-29 | Hergeth Kg Masch Apparate | Dust removing method of and apparatus for spun yarn stock |
| DE3440816A1 (en) * | 1984-11-08 | 1986-05-15 | Fritz 7347 Bad Überkingen Stahlecker | FEEDER AND RELEASE DEVICE FOR AN OPEN-END SPIDER |
| JPH05106123A (en) * | 1991-10-17 | 1993-04-27 | Toyota Autom Loom Works Ltd | Rotor type open end spinning frame |
| DE19851321A1 (en) * | 1997-11-25 | 1999-05-27 | Rieter Elitex As | Open end spinner |
| US6016650A (en) * | 1997-09-26 | 2000-01-25 | Legrom; Friedrich | Fiber feed element for a rotor spinning machine |
| US6055801A (en) * | 1996-11-05 | 2000-05-02 | Fritz Stahlecker | Process for modernizing an open-end spinning machine |
| CN2556216Y (en) * | 2001-05-07 | 2003-06-18 | 绍尔捷克股份公司 | Equipment for removing impurity from sliver |
| CN1487130A (en) * | 2002-08-16 | 2004-04-07 | ���ء�Ӣ�����֯��е����ɷݹ�˾ | Opening roller shell for air-flow spinning machine, auxiliary components of the same shell and method for improving spinning machine |
| CN102560757A (en) * | 2010-11-19 | 2012-07-11 | 里特机械公司 | Fibre canal insert |
| CN202809070U (en) * | 2012-09-03 | 2013-03-20 | 山东德源纱厂有限公司 | Impurity discharging device of spinning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1227729B (en) * | 1988-12-23 | 1991-05-06 | Savio Spa | PROCEDURE AND DEVICE FOR THE REMOVAL OF DETERIORATED FIBERS WHEN REFITTING THE THREAD IN AN OPEN-END THREADING MACHINE |
| CZ20002736A3 (en) * | 2000-07-26 | 2002-04-17 | Rieter Cz A. S. | Rotor spinning machine |
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2019
- 2019-03-28 CZ CZ2019-187A patent/CZ2019187A3/en unknown
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2020
- 2020-03-09 EP EP20161800.6A patent/EP3719185A1/en active Pending
- 2020-03-27 CN CN202010231189.0A patent/CN111748879B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2023235A1 (en) * | 1969-05-16 | 1970-11-19 | Vyzkumny ustav bavlnarsky, Üstl nad Orlicl (Tschechoslowakei)' | Device for spindleless spinning of staple material with rotating vacuum spinning chamber |
| GB1385513A (en) * | 1971-03-24 | 1975-02-26 | Vyzk Ustav Bavlnarsky | Method of and apparatus for removing impurities in a break spinnin process |
| US3884028A (en) * | 1972-06-28 | 1975-05-20 | Fritz Stahlecker | Apparatus for removing impurities from fibers |
| JPS5212335A (en) * | 1975-07-17 | 1977-01-29 | Hergeth Kg Masch Apparate | Dust removing method of and apparatus for spun yarn stock |
| DE3440816A1 (en) * | 1984-11-08 | 1986-05-15 | Fritz 7347 Bad Überkingen Stahlecker | FEEDER AND RELEASE DEVICE FOR AN OPEN-END SPIDER |
| JPH05106123A (en) * | 1991-10-17 | 1993-04-27 | Toyota Autom Loom Works Ltd | Rotor type open end spinning frame |
| US6055801A (en) * | 1996-11-05 | 2000-05-02 | Fritz Stahlecker | Process for modernizing an open-end spinning machine |
| US6016650A (en) * | 1997-09-26 | 2000-01-25 | Legrom; Friedrich | Fiber feed element for a rotor spinning machine |
| DE19851321A1 (en) * | 1997-11-25 | 1999-05-27 | Rieter Elitex As | Open end spinner |
| CN2556216Y (en) * | 2001-05-07 | 2003-06-18 | 绍尔捷克股份公司 | Equipment for removing impurity from sliver |
| CN1487130A (en) * | 2002-08-16 | 2004-04-07 | ���ء�Ӣ�����֯��е����ɷݹ�˾ | Opening roller shell for air-flow spinning machine, auxiliary components of the same shell and method for improving spinning machine |
| CN102560757A (en) * | 2010-11-19 | 2012-07-11 | 里特机械公司 | Fibre canal insert |
| CN202809070U (en) * | 2012-09-03 | 2013-03-20 | 山东德源纱厂有限公司 | Impurity discharging device of spinning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2019187A3 (en) | 2020-10-07 |
| EP3719185A1 (en) | 2020-10-07 |
| CN111748879A (en) | 2020-10-09 |
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