US20230008607A1 - Opening roller housing for an opening roller of an open-end spinning device and open-end spinning device with an opening roller housing - Google Patents
Opening roller housing for an opening roller of an open-end spinning device and open-end spinning device with an opening roller housing Download PDFInfo
- Publication number
- US20230008607A1 US20230008607A1 US17/859,345 US202217859345A US2023008607A1 US 20230008607 A1 US20230008607 A1 US 20230008607A1 US 202217859345 A US202217859345 A US 202217859345A US 2023008607 A1 US2023008607 A1 US 2023008607A1
- Authority
- US
- United States
- Prior art keywords
- opening
- opening roller
- roller housing
- ring
- open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000007383 open-end spinning Methods 0.000 title claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 35
- 239000002657 fibrous material Substances 0.000 claims abstract description 21
- 238000009987 spinning Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Images
Classifications
-
- 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
Definitions
- the present invention relates to an opening roller housing for an opening roller of an open-end spinning machine, having a feed opening for feeding a fiber material into the opening roller housing, having a delivery opening for drawing opened individual fibers out of the opening roller housing, having a trash removal opening for extracting trash out of the fiber material, and having an inner circumferential wall, which surrounds the opening roller during operation and has a fiber-guiding area, which extends from the feed opening, over the trash removal opening, and up to the delivery opening, wherein the opening roller housing includes a hollow cylindrical ring.
- Opening roller housings have become known in various embodiments from the prior art and are utilized on open-end spinning machines in order to open a strip-shaped fiber material fed to the opening device into individual fibers and to then feed the opened individual fibers to the spinning device.
- an opening roller housing is known from DE 32 07 575 C2, which is manufactured as a cast part, for example, in an injection molding process or a die casting process.
- the housing is therefore made of a relatively soft material.
- An insert is therefore provided in the interior space of the housing in order to protect the housing wall surfaces and improve the extraction of trash.
- the insert is composed of thin metal sheet and is designed in the shape of a cup such that it also forms a back wall of the opening roller housing. As a result, the insert has nearly no edges at which fibers could cling, and so the risk of fiber fly being generated in the opening roller housing is reduced.
- the insert is also easily replaceable.
- EP 1 462 550 A1 describes another embodiment of an opening roller housing having a replaceable insert.
- the insert is arranged in the area after the feed opening and extends up to the area of the trash removal opening.
- the insert forms the peripheral wall of the opening roller housing at least partially, although at least in the area of the trash removal opening.
- EP 3 620 558 A1 also describes an opening roller housing having a replaceable insert.
- the insert is designed as a hollow cylindrical ring, which has a trough-shaped fiber infeed into the delivery opening and a wall area having an opening for adjusting the trash removal opening.
- due to the thickness of its cylindrical wall it is to be possible to adjust the annular gap between the opening roller housing and the opening roller. The adjustment of these parameters is carried out by replacing the insert, and so various inserts must be kept on hand and installed in this case as well.
- the problem addressed by the present invention is therefore that of providing an opening roller housing, which is easily manufacturable and installable and, in addition, avoids the generation of fiber fly in the opening roller housing.
- An opening roller housing for an opening roller of an open-end spinning machine has a feed opening for feeding a fiber material into the opening roller housing, a delivery opening for drawing opened individual fibers out of the opening roller housing, a trash removal opening for extracting trash out of the fiber material, and an inner circumferential wall, which surrounds the opening roller during operation and has a fiber-guiding area, which extends from the feed opening, over the trash removal opening, and up to the delivery opening.
- the opening roller housing includes a hollow cylindrical ring.
- the hollow cylindrical ring is designed as a self-supporting component, which is directly fastenable on a carrier part of the open-end spinning machine and includes the inner circumferential wall having the fiber-guiding area as well as the feed opening, the delivery opening, and the trash removal opening.
- the provided opening roller housing therefore no longer has an additional insert.
- the ring-shaped opening roller housing forms the basic body of the opening roller housing and is directly fastenable on the carrier part, this can be easily and quickly effectuated.
- the ring-shaped opening roller housing is reduced to the essential functions, namely the provision of the aforementioned openings as well as the fiber-guiding area, and has a highly compact shape, the opening roller housing can nevertheless be cost-effectively manufactured. Since the ring-shaped opening roller housing is designed as one piece, in addition, no gaps are present, at which fibers could cling. The tendency for fiber fly to be generated in the opening roller housing is therefore reduced.
- the ring has fastening bores, in particular threads, for its fastening on the carrier part of the open-end spinning machine.
- the ring has fastening bores, in particular threads, for its fastening on the carrier part of the open-end spinning machine.
- the opening roller housing can be easily fastened on the carrier by screwing. High drive forces can be generated due to the screwing, and so the opening roller housing can be fastened on the carrier part in a nearly gap-free manner. The tendency for fiber fly to be generated is further reduced as a result.
- the fastening bores can be designed as through-bores, and so the opening roller housing can be installed from the front side of the spinning device.
- the fastening bores are designed as blind bores and, in particular, as threads.
- the fastening can be carried out from a back side of the carrier part of the open-end spinning machine. This is advantageous, for example, for the case in which the carrier part is a pivoting housing that is foldable downward away from the open-end spinning machine.
- fastening bores are arranged on an end face of the ring.
- shape of the ring can also be kept highly compact, since no additional fastening tabs are necessary.
- the gap-free fastening of the opening roller housing on the carrier part can be even further supported as a result.
- the opening roller housing also includes a plastic cover surrounding the ring.
- the plastic cover establishes, on the one hand, a visually attractive transition to the carrier part of the open-end spinning machine.
- the plastic cover can be utilized for the integration and/or the covering of further components such as, for example, a fiber channel insert.
- fastening bores are arranged on an end face of the ring.
- shape of the ring can also be kept highly compact, since no additional fastening tabs are necessary.
- the gap-free fastening of the opening roller housing on the carrier part can be even further supported as a result.
- the opening roller housing also includes a plastic cover surrounding the ring.
- the plastic cover establishes, on the one hand, a visually attractive transition to the carrier part of the open-end spinning machine.
- the plastic cover can be utilized for the integration and/or the covering of further components such as, for example, a fiber channel insert.
- the opening roller housing is also designed as one piece when different materials are used for the hollow cylindrical ring and the plastic cover.
- the opening roller housing is closed in a gap-free manner by the plastic cover, and so the risk of fibers clinging to gaps is even further reduced.
- the integral connection can be established, in particular, by injecting the plastic cover directly onto the hollow cylindrical ring. It is also conceivable, however, to weld the two parts to each other, for example, via ultrasonic welding. A bonding is also conceivable.
- the ring includes one or multiple form-locking element(s) for the form-locking connection with the plastic cover, wherein preferably the form-locking element(s) is/are arranged on an outer circumferential wall of the ring.
- form-locking elements can also be advantageous in an integral connection as described above.
- a form-locked connection is additionally established between the hollow cylindrical ring and the plastic cover.
- the plastic cover is particularly well fixed to the hollow cylindrical ring. If the form-locking elements are mounted on the outer circumferential wall of the ring, these are located outside of functional surfaces or functional areas. It is also conceivable, however, to mount form-locking elements, in particular, on the front end face of the ring, i.e., the end face of the ring facing outward in the installed state of the opening roller housing.
- the plastic cover includes one or multiple clip element(s) for connection with the ring.
- the plastic ring is detachably connected with the ring.
- the clip elements latch into a latching shoulder of the ring shaped correspondingly to the clip elements.
- this embodiment can offer advantages.
- the hollow cylindrical ring forms the basic body of the opening roller housing, which supports the plastic cover. The advantages of the simple fastening are therefore also achieved with this embodiment.
- the ring is made of a metallic material, in particular a steel or aluminum material, and is preferably designed as a cast part.
- the hollow cylindrical ring can be designed to be stable and wear-resistant and, therefore, can also directly form the fiber-guiding surfaces of the opening roller housing. Due to the design as a cast part, shapes that are not completely round, shapes having extensions, and the integration of further functions are also possible.
- a ring designed as a cast part can also be reworked easily and precisely via machining.
- the fiber-guiding surfaces as well as, if necessary, air-guiding surfaces can be manufactured with a high surface quality and a high accuracy as a result.
- the inner circumferential wall of the ring is provided, at least in the fiber-guiding area, with a coating, in particular a wear-resistant coating.
- a coating in particular a wear-resistant coating.
- the service life of the opening roller housing can be improved as a result.
- the surface quality as well as flow properties and fiber-routing properties of the ring can be improved with a coating.
- the ring also includes a bypass opening for feeding a supply air flow into the opening roller housing.
- the bypass opening is utilized for supplying additional air to the opening roller housing, and so less air needs to be drawn in via the trash removal opening. As a result, the extraction of trash can be improved in a known way.
- the ring has a radially outward pointing extension, which includes the bypass opening. Therefore, all functions can be integrated in a single, stable component.
- the extension is formed as one piece with the ring.
- the extension can be formed as one piece with the ring, for example, as a cast part. Due to the one-piece design of the bypass opening with the hollow cylindrical ring, the bypass is also designed without seams. As a result, the tendency for fiber fly to be generated in the bypass is also reduced. Alternatively, it is also possible, however, that the extension is an additional part, which is attached to the ring.
- the ring includes a receiving opening for a fiber channel insert in the area of the delivery opening.
- the fiber channel insert guides, in a manner known, per se, the opened individual fibers from the opening roller housing to the rotor housing of the spinning device. Due to the fact that the receiving opening is provided directly in the ring, the fiber channel insert is always accommodated geometrically precisely in the opening roller housing.
- FIG. 1 shows a workstation of an open-end spinning machine in a schematic, partially cutaway side view
- FIG. 2 shows a detailed representation of an open-end spinning machine in a schematic, cutaway side view
- FIG. 3 shows a schematic, partially cutaway front view of an open-end spinning machine with an opening roller housing
- FIG. 4 shows a schematic front view of an open-end spinning machine with an opening roller housing including a plastic cover
- FIG. 5 shows a detached sectional representation through the opening roller housing from FIG. 4 with the plastic cover
- FIG. 6 shows a detached sectional representation through the opening roller housing from FIG. 4 with the plastic cover in an alternative embodiment
- FIG. 7 shows a schematic front view of an opening roller housing according to an alternative embodiment with an integrated bypass opening
- FIG. 8 shows a schematic front view of an opening roller housing with addressed form-locking elements.
- FIG. 1 shows a schematic, partially cutaway side view of a workstation 29 of an open-end spinning machine.
- the workstation 29 includes, in a way known, per se, an opening roller 2 arranged in an opening roller housing 1 , to which a strip-shaped fiber material 5 is fed.
- the fiber material 5 is opened by the opening roller 2 into individual fibers 7 and fed to an open-end spinning machine 3 .
- the open-end spinning machine 3 includes a spinning rotor 31 arranged in a rotor housing 30 for spinning the fiber material and is acted upon by vacuum via a vacuum duct 36 .
- the finished yarn 32 is finally drawn off with a take-off device 33 and fed to a winding device 34 , where it is wound onto a bobbin 35 .
- the opening roller housing 1 is arranged on a carrier part 13 , which is designed as a pivoting housing and simultaneously includes a cover element (not labeled) for the rotor housing 30 .
- the carrier part 13 or the pivoting housing can be swiveled away in the direction of the arrow in order to free the access to the rotor housing 30 .
- the carrier part 13 is mounted on a machine frame 25 of the open-end spinning machine.
- FIG. 2 now shows a detailed representation of an open-end spinning machine 3 in a schematic, cutaway side view.
- the arrangement of the spinning rotor 31 in the rotor housing 30 as well as the mounting of the carrier part 13 on the machine frame 25 are apparent again in detail.
- the opening roller housing 1 as well as the opening roller 2 are again more readily apparent.
- the carrier part 13 includes a bearing point 22 , in which the opening roller 2 is accommodated.
- the opening roller housing 1 includes a hollow cylindrical ring 12 , which is designed as a self-supporting component and is mounted directly on the carrier part 13 of the open-end spinning machine 3 .
- the ring 12 is mounted directly on its end face 15 facing the carrier part 13 .
- the ring 12 is mounted on the carrier part 13 by means of fasteners 26 , for example, screws, represented here merely symbolically as a dash-dotted line.
- the ring 12 has an inner circumferential wall 10 , which surrounds the opening roller 2 arranged in the opening roller housing 1 during operation.
- the ring has an outer circumferential wall 18 and another end face 15 facing away from the carrier part 13 .
- FIG. 3 shows a schematic, partially cutaway front view of an open-end spinning machine 3 with an opening roller housing 1 .
- the opening roller housing 1 includes, in a way known, per se, a feed opening 4 , via which the fiber material 5 (see FIG. 1 ) is conveyed into the opening roller housing 1 by means of a feed roller 20 and fed to the opening roller 2 .
- the fiber material 5 is combed by the opening roller 2 (not represented here. Only the bearing point 22 is visible here) rotating in the direction of the arrow, opened, and transported further over the trash removal opening 8 up to a delivery opening 6 , at which the opened individual fibers 7 (see FIG.
- the rotor housing 30 is acted upon by vacuum such that the individual fibers 7 can be transported by means of an air flow from the delivery opening 6 up to the spinning rotor 31 .
- the air flow assists the transport of fibers in the opening roller housing 2 .
- trash 9 extracted from the fiber material 5 by the opening roller 2 is slung out of the opening roller housing 1 due to the centrifugal force and can be disposed of. Trash contained in the fiber material 5 can therefore no longer enter into the spinning process and adversely affect the quality of the produced yarn 32 (see FIG. 1 ).
- the trash removal opening 8 is connected to surrounding air.
- the inner circumferential wall 10 of the ring 12 of the opening roller housing 1 therefore forms, at least partially directly, a fiber-guiding area in the case of the present opening roller housing 1 .
- the fiber-guiding area 11 is symbolized in the present case by a dotted line and extends from the feed opening 4 over the trash removal opening 8 up to the delivery opening 6 .
- the described opening roller housing 1 includes the self-supporting ring 12 as an essential component and, therefore, has a particularly simple and compact shape.
- the ring 12 is preferably made of a metal material, for example, of steel or aluminum. As a result, it can be cost-effectively manufactured and installed.
- the self-supporting ring 12 can be mounted directly on the carrier part 13 of the open-end spinning machine 3 and simultaneously includes all essential fiber-guiding surfaces in the fiber-guiding area 11 .
- the ring 12 can include, for example, fastening bores 14 , as represented in FIGS. 7 and 8 .
- the feed opening 4 , the delivery opening 6 , and the trash removal opening 8 are also arranged directly in the self-supporting ring 12 . It is therefore not necessary to form the opening roller housing 1 from multiple parts or provide the opening roller housing 1 with an additional insert, as in the prior art. This also contributes to a reduction of the assembly and manufacturing effort related to the opening roller housing 1 . In addition, due to the one-piece design with the self-supporting ring 12 , there are no gaps between various parts of the opening roller housing 1 at which fibers could accumulate and cling.
- FIG. 4 shows a schematic front view of an open-end spinning machine 3 with an opening roller housing 1 including a plastic cover 16 .
- the plastic cover 16 surrounds the opening roller housing 1 and closes this toward the outside, ensures a visually attractive appearance, and can also be utilized for integrating further components or covering functional components adjacent to the opening roller housing 1 .
- the plastic cover 16 shown here extends, for example, up to the rotor housing 30 (not represented here) and creates an appealing transition thereto.
- the delivery opening 6 with respect to the present opening roller housing 1 is designed as a receiving opening 24 for a fiber channel insert 27 .
- These types of fiber channel inserts 27 are known from the prior art and are typical for transporting the opened individual fibers 7 to the spinning rotor 31 .
- the fiber channel insert 27 in the embodiment shown is accommodated directly in the receiving opening 24 of the ring 12 , the fiber channel insert 27 is assigned to the opening roller housing 1 and the opening roller 2 rotating therein in a geometrically particularly precise manner.
- the largest portion of the fiber channel insert 27 is covered by the plastic cover 16 .
- the ring 12 is made of a metal material such as steel or aluminum.
- the plastic cover 16 can be injected directly onto the ring 12 in a particularly advantageous way. In this case, the plastic cover 16 is integrally joined with the ring 12 .
- the plastic cover 16 could also be connected to the ring 12 , for example, via ultrasonic welding or adhesive bonding.
- the ring 12 additionally includes form-locking elements 17 for the form-locking connection with the plastic cover 16 , as described in the following.
- the plastic cover 16 seals the opening roller housing 1 toward the outside without gaps.
- FIG. 5 shows a sectional representation along the lines of cut indicated in FIG. 4 in a detached representation.
- the ring 12 includes a form-locking element 17 in the area of its outer circumferential wall 18 in this case.
- the plastic cover 16 is readily apparent in this sectional view. According to a first embodiment, it is possible that the plastic cover 16 is merely slid onto the ring 12 and is pulled over the ring 12 only in the area of the form-locking element 17 . For this purpose, the plastic cover 16 must have a certain elasticity. In this case, the plastic cover 16 is fastened to the ring 12 exclusively by means of one or multiple form-locking element(s) 17 . Multiple form-locking elements 17 can be provided on the circumferential wall 18 as well as on the end face 15 of the ring 12 facing away from the carrier part 13 .
- a form-locking connection of this type is also advantageous, however, in particular in addition to the integral connection already described with respect to FIG. 4 in order to improve the durability of the connection.
- FIG. 6 also shows a sectional representation along the lines of cut indicated in FIG. 4 in a detached representation, although this includes an alternative form of the connection between the ring 12 and the plastic cover 16 .
- the plastic cover 16 in the present example includes two clip elements 19 for connection with the ring 12 .
- the plastic cover 16 is held on the ring 12 in a purely form-fitting manner.
- the clip elements 19 are arranged on the plastic cover 16 in an elastically resilient manner and, for this reason, do not obstruct the installation of the plastic cover 16 on the ring 12 . In the installed state, the clip elements 19 therefore each interact with a latching shoulder 28 , which is provided in the ring 12 .
- FIG. 7 now shows a first embodiment of a ring 12 of an opening roller housing 1 in a schematic front view.
- the presently shown opening roller housing 1 and the ring 12 additionally include a bypass opening 21 for feeding a supply air flow into the opening roller housing 1 .
- the bypass opening 21 By means of the bypass opening 21 , the air supply through the trash removal opening 8 into the opening roller housing 1 is limited, and so the trash particles contained in the fiber material 5 to be opened can be better extracted. In particular, this also makes it possible to extract lighter-weight trash particles, which would otherwise be carried along with the air flow in the opening roller housing 1 and would remain in the fiber material 5 .
- the bypass opening 21 is arranged in an extension 23 of the ring 12 .
- the bypass opening 21 is therefore integrated into the opening roller housing 1 in an advantageous way.
- the ring 12 includes yet another extension 23 , which delimits the trash removal opening. Therefore, even more functions are combined in a single component in the present ring 12 and opening roller housing 1 , which simplifies manufacturing as well as assembly.
- a ring 12 of this type can be easily manufactured, for example, as a cast part, in particular as an injection molded part.
- the surfaces in the fiber-guiding area 11 can also be additionally machined in order to achieve a high surface quality, and/or provided with a wear-resistant coating, which incidentally also applies for all embodiments of the ring 12 shown in other figures.
- fastening bores 14 are apparent in FIG. 7 for mounting the ring 12 on the carrier part 13 (see FIG. 2 ).
- these fastening bores 14 are designed as threads, and so the ring 12 can be screwed on directly on the carrier part 13 by means of multiple screws.
- FIG. 8 now shows yet another schematic front view of one further embodiment of a ring 12 , which includes an extension 23 having a bypass opening 21 as is also the case for the ring 12 from FIG. 7 .
- form-locking elements 17 are shown on this ring, which are also arranged in the area of an outer circumferential wall 18 .
- these can be provided in addition to an integral connection with the plastic cover 16 in order to give the plastic cover 16 greater hold, or as the only means of connection to the plastic cover 16 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
An opening roller housing (1) for an opening roller (2) of an open-end spinning machine (3) has a feed opening (4) for feeding a fiber material (5) into the opening roller housing (1), a delivery opening (6) for drawing opened individual fibers (7) out of the opening roller housing (1), a trash removal opening (8) for extracting trash (9) out of the fiber material (5), and an inner circumferential wall (10), which surrounds the opening roller (2) during operation and has a fiber-guiding area (11), which extends from the feed opening (4), over the trash removal opening (8), and up to the delivery opening (6). The opening roller housing (1) includes a hollow cylindrical ring (12). The hollow cylindrical ring (12) is designed as a self-supporting component, which is directly fastenable on a carrier part (13) of the open-end spinning machine (3) and includes the inner circumferential wall (10) having the fiber-guiding area (11) as well as the feed opening (4), the delivery opening (6), and the trash removal opening (8). An open-end spinning machine (3) includes an opening roller housing (1) of this type.
Description
- The present invention relates to an opening roller housing for an opening roller of an open-end spinning machine, having a feed opening for feeding a fiber material into the opening roller housing, having a delivery opening for drawing opened individual fibers out of the opening roller housing, having a trash removal opening for extracting trash out of the fiber material, and having an inner circumferential wall, which surrounds the opening roller during operation and has a fiber-guiding area, which extends from the feed opening, over the trash removal opening, and up to the delivery opening, wherein the opening roller housing includes a hollow cylindrical ring.
- Opening roller housings have become known in various embodiments from the prior art and are utilized on open-end spinning machines in order to open a strip-shaped fiber material fed to the opening device into individual fibers and to then feed the opened individual fibers to the spinning device.
- For example, an opening roller housing is known from
DE 32 07 575 C2, which is manufactured as a cast part, for example, in an injection molding process or a die casting process. The housing is therefore made of a relatively soft material. An insert is therefore provided in the interior space of the housing in order to protect the housing wall surfaces and improve the extraction of trash. The insert is composed of thin metal sheet and is designed in the shape of a cup such that it also forms a back wall of the opening roller housing. As a result, the insert has nearly no edges at which fibers could cling, and so the risk of fiber fly being generated in the opening roller housing is reduced. The insert is also easily replaceable. -
EP 1 462 550 A1 describes another embodiment of an opening roller housing having a replaceable insert. There, the insert is arranged in the area after the feed opening and extends up to the area of the trash removal opening. The insert forms the peripheral wall of the opening roller housing at least partially, although at least in the area of the trash removal opening. As a result, the opening roller housing can be easily adapted to various fiber materials and spinning conditions. The size as well as the position of the trash removal opening can be modified as a result. There is a risk, however, at the transition of the insert to the rest of the opening roller housing that fibers can cling and accumulate there. In addition, various inserts must be kept on hand and installed. -
EP 3 620 558 A1 also describes an opening roller housing having a replaceable insert. The insert is designed as a hollow cylindrical ring, which has a trough-shaped fiber infeed into the delivery opening and a wall area having an opening for adjusting the trash removal opening. Moreover, with respect to this insert, due to the thickness of its cylindrical wall, it is to be possible to adjust the annular gap between the opening roller housing and the opening roller. The adjustment of these parameters is carried out by replacing the insert, and so various inserts must be kept on hand and installed in this case as well. - The problem addressed by the present invention is therefore that of providing an opening roller housing, which is easily manufacturable and installable and, in addition, avoids the generation of fiber fly in the opening roller housing.
- The problem is solved by an opening roller housing and an open-end spinning machine having the features of the independent patent claims.
- An opening roller housing for an opening roller of an open-end spinning machine has a feed opening for feeding a fiber material into the opening roller housing, a delivery opening for drawing opened individual fibers out of the opening roller housing, a trash removal opening for extracting trash out of the fiber material, and an inner circumferential wall, which surrounds the opening roller during operation and has a fiber-guiding area, which extends from the feed opening, over the trash removal opening, and up to the delivery opening. The opening roller housing includes a hollow cylindrical ring.
- It is provided that the hollow cylindrical ring is designed as a self-supporting component, which is directly fastenable on a carrier part of the open-end spinning machine and includes the inner circumferential wall having the fiber-guiding area as well as the feed opening, the delivery opening, and the trash removal opening.
- In contrast to the prior art, the provided opening roller housing therefore no longer has an additional insert. In order to carry out an adaptation to various fiber materials or various spinning conditions, it is therefore necessary to replace the entire opening roller housing. Since, however, the ring-shaped opening roller housing forms the basic body of the opening roller housing and is directly fastenable on the carrier part, this can be easily and quickly effectuated. Since, in addition, the ring-shaped opening roller housing is reduced to the essential functions, namely the provision of the aforementioned openings as well as the fiber-guiding area, and has a highly compact shape, the opening roller housing can nevertheless be cost-effectively manufactured. Since the ring-shaped opening roller housing is designed as one piece, in addition, no gaps are present, at which fibers could cling. The tendency for fiber fly to be generated in the opening roller housing is therefore reduced.
- It is particularly advantageous when the ring has fastening bores, in particular threads, for its fastening on the carrier part of the open-end spinning machine.
- It is particularly advantageous when the ring has fastening bores, in particular threads, for its fastening on the carrier part of the open-end spinning machine. As a result, the opening roller housing can be easily fastened on the carrier by screwing. High drive forces can be generated due to the screwing, and so the opening roller housing can be fastened on the carrier part in a nearly gap-free manner. The tendency for fiber fly to be generated is further reduced as a result.
- The fastening bores can be designed as through-bores, and so the opening roller housing can be installed from the front side of the spinning device.
- According to another embodiment, it can also be advantageous, however, when the fastening bores are designed as blind bores and, in particular, as threads. In this case, the fastening can be carried out from a back side of the carrier part of the open-end spinning machine. This is advantageous, for example, for the case in which the carrier part is a pivoting housing that is foldable downward away from the open-end spinning machine.
- It is also advantageous when the fastening bores are arranged on an end face of the ring. As a result, the shape of the ring can also be kept highly compact, since no additional fastening tabs are necessary. The gap-free fastening of the opening roller housing on the carrier part can be even further supported as a result.
- It is advantageous when the opening roller housing also includes a plastic cover surrounding the ring. The plastic cover establishes, on the one hand, a visually attractive transition to the carrier part of the open-end spinning machine. On the other hand, the plastic cover can be utilized for the integration and/or the covering of further components such as, for example, a fiber channel insert.
- It is also advantageous when the fastening bores are arranged on an end face of the ring. As a result, the shape of the ring can also be kept highly compact, since no additional fastening tabs are necessary. The gap-free fastening of the opening roller housing on the carrier part can be even further supported as a result.
- It is advantageous when the opening roller housing also includes a plastic cover surrounding the ring. The plastic cover establishes, on the one hand, a visually attractive transition to the carrier part of the open-end spinning machine. On the other hand, the plastic cover can be utilized for the integration and/or the covering of further components such as, for example, a fiber channel insert.
- It is also advantageous when the plastic cover is integrally joined with the ring, in particular being injected directly onto the hollow cylindrical ring. As a result, the opening roller housing is also designed as one piece when different materials are used for the hollow cylindrical ring and the plastic cover. The opening roller housing is closed in a gap-free manner by the plastic cover, and so the risk of fibers clinging to gaps is even further reduced. The integral connection can be established, in particular, by injecting the plastic cover directly onto the hollow cylindrical ring. It is also conceivable, however, to weld the two parts to each other, for example, via ultrasonic welding. A bonding is also conceivable.
- It is advantageous when the ring includes one or multiple form-locking element(s) for the form-locking connection with the plastic cover, wherein preferably the form-locking element(s) is/are arranged on an outer circumferential wall of the ring. These types of form-locking elements can also be advantageous in an integral connection as described above. By means of the form-locking elements, a form-locked connection is additionally established between the hollow cylindrical ring and the plastic cover. As a result, the plastic cover is particularly well fixed to the hollow cylindrical ring. If the form-locking elements are mounted on the outer circumferential wall of the ring, these are located outside of functional surfaces or functional areas. It is also conceivable, however, to mount form-locking elements, in particular, on the front end face of the ring, i.e., the end face of the ring facing outward in the installed state of the opening roller housing.
- According to another embodiment, it is advantageous when the plastic cover includes one or multiple clip element(s) for connection with the ring. In this case, the plastic ring is detachably connected with the ring. The clip elements latch into a latching shoulder of the ring shaped correspondingly to the clip elements. Depending on the type of manufacturing of the ring and of the plastic cover, this embodiment can offer advantages. In this case as well, however, the hollow cylindrical ring forms the basic body of the opening roller housing, which supports the plastic cover. The advantages of the simple fastening are therefore also achieved with this embodiment.
- Moreover, it is advantageous when the ring is made of a metallic material, in particular a steel or aluminum material, and is preferably designed as a cast part.
- Due to the design made of a steel or aluminum material, the hollow cylindrical ring can be designed to be stable and wear-resistant and, therefore, can also directly form the fiber-guiding surfaces of the opening roller housing. Due to the design as a cast part, shapes that are not completely round, shapes having extensions, and the integration of further functions are also possible.
- It is also advantageous when the hollow cylindrical ring is machined. A ring designed as a cast part can also be reworked easily and precisely via machining. In particular, the fiber-guiding surfaces as well as, if necessary, air-guiding surfaces can be manufactured with a high surface quality and a high accuracy as a result.
- It is also advantageous when the inner circumferential wall of the ring is provided, at least in the fiber-guiding area, with a coating, in particular a wear-resistant coating. The service life of the opening roller housing can be improved as a result. In addition, the surface quality as well as flow properties and fiber-routing properties of the ring can be improved with a coating.
- It is particularly advantageous when the ring also includes a bypass opening for feeding a supply air flow into the opening roller housing. The bypass opening is utilized for supplying additional air to the opening roller housing, and so less air needs to be drawn in via the trash removal opening. As a result, the extraction of trash can be improved in a known way.
- It is advantageous when the ring has a radially outward pointing extension, which includes the bypass opening. Therefore, all functions can be integrated in a single, stable component.
- It is particularly advantageous when the extension is formed as one piece with the ring. The extension can be formed as one piece with the ring, for example, as a cast part. Due to the one-piece design of the bypass opening with the hollow cylindrical ring, the bypass is also designed without seams. As a result, the tendency for fiber fly to be generated in the bypass is also reduced. Alternatively, it is also possible, however, that the extension is an additional part, which is attached to the ring.
- Moreover, it is advantageous when the ring includes a receiving opening for a fiber channel insert in the area of the delivery opening. The fiber channel insert guides, in a manner known, per se, the opened individual fibers from the opening roller housing to the rotor housing of the spinning device. Due to the fact that the receiving opening is provided directly in the ring, the fiber channel insert is always accommodated geometrically precisely in the opening roller housing.
- The aforementioned advantages, in particular the cost advantages, the simplified installation, and the reduced tendency for fiber fly to be generated are also achieved on an open spinning device having an opening roller housing of this type, and so protection is also claimed therefor.
- Further advantages of the invention are described in the following exemplary embodiments, wherein:
-
FIG. 1 shows a workstation of an open-end spinning machine in a schematic, partially cutaway side view, -
FIG. 2 shows a detailed representation of an open-end spinning machine in a schematic, cutaway side view, -
FIG. 3 shows a schematic, partially cutaway front view of an open-end spinning machine with an opening roller housing, -
FIG. 4 shows a schematic front view of an open-end spinning machine with an opening roller housing including a plastic cover, -
FIG. 5 shows a detached sectional representation through the opening roller housing fromFIG. 4 with the plastic cover, -
FIG. 6 shows a detached sectional representation through the opening roller housing fromFIG. 4 with the plastic cover in an alternative embodiment, -
FIG. 7 shows a schematic front view of an opening roller housing according to an alternative embodiment with an integrated bypass opening, and -
FIG. 8 shows a schematic front view of an opening roller housing with addressed form-locking elements. - In the following description of the exemplary embodiments, features that are identical or at least comparable with respect to their design and/or mode of operation are provided with identical reference numbers. Moreover, these are explained in detail only at their first mention, while only the differences from the previously described exemplary embodiments are discussed in the subsequent exemplary embodiments. Moreover, for the sake of clarity, often only one or only a few of several identical components and/or features is/are labeled.
-
FIG. 1 shows a schematic, partially cutaway side view of aworkstation 29 of an open-end spinning machine. Theworkstation 29 includes, in a way known, per se, anopening roller 2 arranged in anopening roller housing 1, to which a strip-shapedfiber material 5 is fed. In theopening roller housing 1, thefiber material 5 is opened by theopening roller 2 into individual fibers 7 and fed to an open-end spinning machine 3. The open-end spinning machine 3 includes a spinningrotor 31 arranged in arotor housing 30 for spinning the fiber material and is acted upon by vacuum via avacuum duct 36. Thefinished yarn 32 is finally drawn off with a take-off device 33 and fed to a windingdevice 34, where it is wound onto abobbin 35. In the present case, the openingroller housing 1 is arranged on acarrier part 13, which is designed as a pivoting housing and simultaneously includes a cover element (not labeled) for therotor housing 30. Thecarrier part 13 or the pivoting housing can be swiveled away in the direction of the arrow in order to free the access to therotor housing 30. Thecarrier part 13 is mounted on amachine frame 25 of the open-end spinning machine. -
FIG. 2 now shows a detailed representation of an open-end spinning machine 3 in a schematic, cutaway side view. The arrangement of the spinningrotor 31 in therotor housing 30 as well as the mounting of thecarrier part 13 on themachine frame 25 are apparent again in detail. InFIG. 2 , the openingroller housing 1 as well as theopening roller 2 are again more readily apparent. As is apparent fromFIG. 2 , thecarrier part 13 includes abearing point 22, in which theopening roller 2 is accommodated. The openingroller housing 1 includes a hollowcylindrical ring 12, which is designed as a self-supporting component and is mounted directly on thecarrier part 13 of the open-end spinning machine 3. In the present case, thering 12 is mounted directly on itsend face 15 facing thecarrier part 13. For this purpose, thering 12 is mounted on thecarrier part 13 by means offasteners 26, for example, screws, represented here merely symbolically as a dash-dotted line. Thering 12 has an innercircumferential wall 10, which surrounds theopening roller 2 arranged in theopening roller housing 1 during operation. Moreover, the ring has an outercircumferential wall 18 and another end face 15 facing away from thecarrier part 13. -
FIG. 3 shows a schematic, partially cutaway front view of an open-end spinning machine 3 with anopening roller housing 1. The function as well as the various functional areas of theopening roller housing 1 are readily apparent in this figure. The openingroller housing 1 includes, in a way known, per se, afeed opening 4, via which the fiber material 5 (seeFIG. 1 ) is conveyed into theopening roller housing 1 by means of afeed roller 20 and fed to theopening roller 2. Thefiber material 5 is combed by the opening roller 2 (not represented here. Only thebearing point 22 is visible here) rotating in the direction of the arrow, opened, and transported further over thetrash removal opening 8 up to adelivery opening 6, at which the opened individual fibers 7 (seeFIG. 1 ) are drawn out of theopening roller housing 1 and fed to the spinningrotor 31. As already mentioned with respect toFIG. 1 , therotor housing 30 is acted upon by vacuum such that the individual fibers 7 can be transported by means of an air flow from thedelivery opening 6 up to the spinningrotor 31. The air flow assists the transport of fibers in theopening roller housing 2. - At the
trash removal opening 8,trash 9 extracted from thefiber material 5 by theopening roller 2 is slung out of theopening roller housing 1 due to the centrifugal force and can be disposed of. Trash contained in thefiber material 5 can therefore no longer enter into the spinning process and adversely affect the quality of the produced yarn 32 (seeFIG. 1 ). Thetrash removal opening 8 is connected to surrounding air. The innercircumferential wall 10 of thering 12 of theopening roller housing 1 therefore forms, at least partially directly, a fiber-guiding area in the case of the presentopening roller housing 1. The fiber-guidingarea 11 is symbolized in the present case by a dotted line and extends from thefeed opening 4 over thetrash removal opening 8 up to thedelivery opening 6. - The described
opening roller housing 1 includes the self-supportingring 12 as an essential component and, therefore, has a particularly simple and compact shape. Thering 12 is preferably made of a metal material, for example, of steel or aluminum. As a result, it can be cost-effectively manufactured and installed. As already described with respect toFIG. 2 , the self-supportingring 12 can be mounted directly on thecarrier part 13 of the open-end spinning machine 3 and simultaneously includes all essential fiber-guiding surfaces in the fiber-guidingarea 11. For the mounting on thecarrier part 13, thering 12 can include, for example, fastening bores 14, as represented inFIGS. 7 and 8 . Moreover, thefeed opening 4, thedelivery opening 6, and thetrash removal opening 8 are also arranged directly in the self-supportingring 12. It is therefore not necessary to form theopening roller housing 1 from multiple parts or provide theopening roller housing 1 with an additional insert, as in the prior art. This also contributes to a reduction of the assembly and manufacturing effort related to theopening roller housing 1. In addition, due to the one-piece design with the self-supportingring 12, there are no gaps between various parts of theopening roller housing 1 at which fibers could accumulate and cling. -
FIG. 4 shows a schematic front view of an open-end spinning machine 3 with anopening roller housing 1 including aplastic cover 16. Theplastic cover 16 surrounds theopening roller housing 1 and closes this toward the outside, ensures a visually attractive appearance, and can also be utilized for integrating further components or covering functional components adjacent to theopening roller housing 1. Theplastic cover 16 shown here extends, for example, up to the rotor housing 30 (not represented here) and creates an appealing transition thereto. Moreover, it is apparent fromFIG. 4 that thedelivery opening 6 with respect to the presentopening roller housing 1 is designed as a receivingopening 24 for afiber channel insert 27. These types of fiber channel inserts 27 are known from the prior art and are typical for transporting the opened individual fibers 7 to the spinningrotor 31. Due to the fact that thefiber channel insert 27 in the embodiment shown is accommodated directly in the receivingopening 24 of thering 12, thefiber channel insert 27 is assigned to theopening roller housing 1 and theopening roller 2 rotating therein in a geometrically particularly precise manner. The largest portion of thefiber channel insert 27 is covered by theplastic cover 16. In this embodiment as well, thering 12 is made of a metal material such as steel or aluminum. Theplastic cover 16 can be injected directly onto thering 12 in a particularly advantageous way. In this case, theplastic cover 16 is integrally joined with thering 12. However, theplastic cover 16 could also be connected to thering 12, for example, via ultrasonic welding or adhesive bonding. In the case of an integral connection of this type, it is also advantageous, however, when thering 12 additionally includes form-lockingelements 17 for the form-locking connection with theplastic cover 16, as described in the following. In this case, theplastic cover 16 seals theopening roller housing 1 toward the outside without gaps. -
FIG. 5 shows a sectional representation along the lines of cut indicated inFIG. 4 in a detached representation. In this sectional view, it is apparent that thering 12 includes a form-lockingelement 17 in the area of its outercircumferential wall 18 in this case. Moreover, theplastic cover 16 is readily apparent in this sectional view. According to a first embodiment, it is possible that theplastic cover 16 is merely slid onto thering 12 and is pulled over thering 12 only in the area of the form-lockingelement 17. For this purpose, theplastic cover 16 must have a certain elasticity. In this case, theplastic cover 16 is fastened to thering 12 exclusively by means of one or multiple form-locking element(s) 17. Multiple form-lockingelements 17 can be provided on thecircumferential wall 18 as well as on theend face 15 of thering 12 facing away from thecarrier part 13. - A form-locking connection of this type is also advantageous, however, in particular in addition to the integral connection already described with respect to
FIG. 4 in order to improve the durability of the connection. -
FIG. 6 also shows a sectional representation along the lines of cut indicated inFIG. 4 in a detached representation, although this includes an alternative form of the connection between thering 12 and theplastic cover 16. Theplastic cover 16 in the present example includes twoclip elements 19 for connection with thering 12. In this case, theplastic cover 16 is held on thering 12 in a purely form-fitting manner. Theclip elements 19 are arranged on theplastic cover 16 in an elastically resilient manner and, for this reason, do not obstruct the installation of theplastic cover 16 on thering 12. In the installed state, theclip elements 19 therefore each interact with a latchingshoulder 28, which is provided in thering 12. -
FIG. 7 now shows a first embodiment of aring 12 of anopening roller housing 1 in a schematic front view. In contrast to the embodiment fromFIG. 3 , the presently shown openingroller housing 1 and thering 12 additionally include abypass opening 21 for feeding a supply air flow into theopening roller housing 1. By means of thebypass opening 21, the air supply through thetrash removal opening 8 into theopening roller housing 1 is limited, and so the trash particles contained in thefiber material 5 to be opened can be better extracted. In particular, this also makes it possible to extract lighter-weight trash particles, which would otherwise be carried along with the air flow in theopening roller housing 1 and would remain in thefiber material 5. - The
bypass opening 21 is arranged in anextension 23 of thering 12. Thebypass opening 21 is therefore integrated into theopening roller housing 1 in an advantageous way. As is also apparent fromFIG. 7 , thering 12 includes yet anotherextension 23, which delimits the trash removal opening. Therefore, even more functions are combined in a single component in thepresent ring 12 andopening roller housing 1, which simplifies manufacturing as well as assembly. Aring 12 of this type can be easily manufactured, for example, as a cast part, in particular as an injection molded part. The surfaces in the fiber-guidingarea 11 can also be additionally machined in order to achieve a high surface quality, and/or provided with a wear-resistant coating, which incidentally also applies for all embodiments of thering 12 shown in other figures. - Moreover, in the present example, a total of four fastening bores 14 are apparent in
FIG. 7 for mounting thering 12 on the carrier part 13 (seeFIG. 2 ). Preferably, these fastening bores 14 are designed as threads, and so thering 12 can be screwed on directly on thecarrier part 13 by means of multiple screws. - Due to the contact force of the screws, a seamless connection can also be formed here.
-
FIG. 8 now shows yet another schematic front view of one further embodiment of aring 12, which includes anextension 23 having abypass opening 21 as is also the case for thering 12 fromFIG. 7 . In contrast toFIG. 7 , form-lockingelements 17 are shown on this ring, which are also arranged in the area of an outercircumferential wall 18. As already described with respect toFIG. 5 , these can be provided in addition to an integral connection with theplastic cover 16 in order to give theplastic cover 16 greater hold, or as the only means of connection to theplastic cover 16. - The present invention is not limited to the represented and described exemplary embodiments. Modifications within the scope of the claims are also possible, as is any combination of the described features, even if they are represented and described in different parts of the description or the claims or in different exemplary embodiments, provided no contradiction to the teaching of the independent claims results.
-
-
- 1 opening roller housing
- 2 opening roller
- 3 open-end spinning machine
- 4 feed opening
- 5 fiber material
- 6 delivery opening
- 7 individual fibers
- 8 trash removal opening
- 9 trash
- 10 inner circumferential wall
- 11 fiber-guiding area
- 12 ring
- 13 carrier part
- 14 fastening bore
- 15 end face
- 16 plastic cover
- 17 form-locking element
- 18 outer circumferential wall
- 19 clip element
- 20 feed roller
- 21 bypass opening
- 22 bearing point
- 23 extension
- 24 receiving opening
- 25 machine frame
- 26 fastener
- 27 fiber channel insert
- 28 latching shoulder
- 29 workstation
- 30 rotor housing
- 31 spinning rotor
- 32 yarn
- 33 take-off device
- 34 winding device
- 35 package
- 36 vacuum duct
Claims (2)
1. An opening roller housing (1) for an opening roller (2) of an open-end spinning machine (3), having a feed opening (4) for feeding a fiber material (5) into the opening roller housing (1), having a delivery opening (6) for drawing opened individual fibers (7) out of the opening roller housing (1), having a trash removal opening (8) for extracting trash (9) out of the fiber material (5), and having an inner circumferential wall (10), which surrounds the opening roller (2) during operation and has a fiber-guiding area (11), which extends from the feed opening (4), over the trash removal opening (8), and up to the delivery opening (6), wherein the opening roller housing (1) includes a hollow cylindrical ring (12),
characterized in that
the hollow cylindrical ring (12) is designed as a self-supporting component, which is directly fastenable on a carrier part (13) of the open-end spinning machine (3) and includes the inner circumferential wall (10) having the fiber-guiding area (11) as well as the feed opening (4), the delivery opening (6), and the trash removal opening (8).
2-14. (canceled)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021117812.6A DE102021117812A1 (en) | 2021-07-09 | 2021-07-09 | Opening roller housing for an opening roller of an open-end spinning device and open-end spinning device with an opening roller housing |
DE102021117812.6 | 2021-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20230008607A1 true US20230008607A1 (en) | 2023-01-12 |
Family
ID=82399518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/859,345 Abandoned US20230008607A1 (en) | 2021-07-09 | 2022-07-07 | Opening roller housing for an opening roller of an open-end spinning device and open-end spinning device with an opening roller housing |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230008607A1 (en) |
EP (1) | EP4116472A1 (en) |
CN (1) | CN115595692A (en) |
DE (1) | DE102021117812A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022133335A1 (en) | 2022-12-14 | 2024-06-20 | Maschinenfabrik Rieter Ag | Opening roller housing for an opening roller of an open-end spinning device and plastic cover |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387558A (en) * | 1978-04-29 | 1983-06-14 | Siegfried Rehm | Method for lining a housing of a fiber opening device and roller |
US5367868A (en) * | 1992-08-17 | 1994-11-29 | Rieter Ingolstadt | Process and device for open-end spinning |
US5373690A (en) * | 1992-08-22 | 1994-12-20 | Rieteringolstadt Spinnereimaschinenbau Ag | Process and device for pneumatic conveying of fibers to the fiber collection surface of an open-end spinning element |
US5398494A (en) * | 1992-10-14 | 1995-03-21 | W. Schlafhorst Ag & Co. | Sliver opening device for separating out impurities and feeding fiber to an open end spring machine |
DE4425347A1 (en) * | 1994-07-18 | 1996-01-25 | Fritz Stahlecker | Open end spinner |
US5867974A (en) * | 1996-11-11 | 1999-02-09 | Spindelfabrick Suessen, Schurr, Stahlecker & Grill Gmbh | Opening device for an open-end spinning machine |
US5950415A (en) * | 1997-02-22 | 1999-09-14 | Novibra Gmbh | Opening device for an open-end spinning machine and method of making same |
DE10224589A1 (en) * | 2001-06-23 | 2003-01-09 | Rieter Ingolstadt Spinnerei | Housing of opening roller for open-end spinning unit, has exchangeable insert in housing wall between trash opening and fiber feed duct |
EP3620558A1 (en) * | 2018-09-07 | 2020-03-11 | Saurer Spinning Solutions GmbH & Co. KG | Opening roller housing for an opening device of an open-end rotor spinning device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3207575A1 (en) | 1982-03-03 | 1983-09-22 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt | "DISCONNECTING DEVICE FOR AN OPENING SPINNER" |
DE3809717A1 (en) * | 1988-03-23 | 1989-10-05 | Schlafhorst & Co W | DISCONNECTING UNIT OF AN OPEN-END SPIDER |
DE10237672A1 (en) | 2002-08-16 | 2004-02-26 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Textile opening cylinder housing has an adapter located alongside foreign object discharge zone and covering opening cylinder outer margins |
DE102004016401B4 (en) | 2004-03-26 | 2012-04-19 | Wilhelm Stahlecker Gmbh | Disassembly unit for an open-end spinning device |
-
2021
- 2021-07-09 DE DE102021117812.6A patent/DE102021117812A1/en active Pending
-
2022
- 2022-06-24 CN CN202210728501.6A patent/CN115595692A/en active Pending
- 2022-07-06 EP EP22183403.9A patent/EP4116472A1/en active Pending
- 2022-07-07 US US17/859,345 patent/US20230008607A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4387558A (en) * | 1978-04-29 | 1983-06-14 | Siegfried Rehm | Method for lining a housing of a fiber opening device and roller |
US5367868A (en) * | 1992-08-17 | 1994-11-29 | Rieter Ingolstadt | Process and device for open-end spinning |
US5373690A (en) * | 1992-08-22 | 1994-12-20 | Rieteringolstadt Spinnereimaschinenbau Ag | Process and device for pneumatic conveying of fibers to the fiber collection surface of an open-end spinning element |
US5398494A (en) * | 1992-10-14 | 1995-03-21 | W. Schlafhorst Ag & Co. | Sliver opening device for separating out impurities and feeding fiber to an open end spring machine |
DE4425347A1 (en) * | 1994-07-18 | 1996-01-25 | Fritz Stahlecker | Open end spinner |
US5867974A (en) * | 1996-11-11 | 1999-02-09 | Spindelfabrick Suessen, Schurr, Stahlecker & Grill Gmbh | Opening device for an open-end spinning machine |
US5950415A (en) * | 1997-02-22 | 1999-09-14 | Novibra Gmbh | Opening device for an open-end spinning machine and method of making same |
DE10224589A1 (en) * | 2001-06-23 | 2003-01-09 | Rieter Ingolstadt Spinnerei | Housing of opening roller for open-end spinning unit, has exchangeable insert in housing wall between trash opening and fiber feed duct |
EP3620558A1 (en) * | 2018-09-07 | 2020-03-11 | Saurer Spinning Solutions GmbH & Co. KG | Opening roller housing for an opening device of an open-end rotor spinning device |
Non-Patent Citations (1)
Title |
---|
English translation of EP3620558, obtained via espacenet.com (last visited August 8, 2023). (Year: 2023) * |
Also Published As
Publication number | Publication date |
---|---|
DE102021117812A1 (en) | 2023-01-12 |
CN115595692A (en) | 2023-01-13 |
EP4116472A1 (en) | 2023-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20230008607A1 (en) | Opening roller housing for an opening roller of an open-end spinning device and open-end spinning device with an opening roller housing | |
US7036301B2 (en) | Channel plate adapter for an open-end rotor spinning arrangement | |
US8468792B2 (en) | Fiber guide channel device for an open-end spinning mechanism | |
CN102341534A (en) | Open-end rotor spinning device | |
CZ304228B6 (en) | Spinning unit of spindleless spinning machine | |
US4070813A (en) | Open end spinning unit having reduced operating power requirements | |
US11066760B2 (en) | Open-end spinning device | |
CN1846020B (en) | Open-end spinning device | |
US5685137A (en) | Fiber guide conduit in an open-end spinning unit | |
CN110886036B (en) | Opening roller housing for an opening device of an open-end rotor spinning device | |
CN110230133B (en) | Fiber guide channel mechanism for open-end spinning device with locking connection | |
US6880322B1 (en) | Opening roller housing for an open-end spinning device, device for an opening roller housing and procedure for modernizing spinning devices | |
US5899057A (en) | Opener roller for an open-end spinning device | |
US5867974A (en) | Opening device for an open-end spinning machine | |
CS262105B1 (en) | Carding device | |
US7181901B2 (en) | Channel plate for an open-ended rotor spinning device | |
US5280700A (en) | Cover of a spinbox of a rotor spinning machine | |
US5373690A (en) | Process and device for pneumatic conveying of fibers to the fiber collection surface of an open-end spinning element | |
CN114059204A (en) | Method for operating a textile machine and textile machine | |
CN112301475A (en) | Spinning machine with side-by-side working stations and movable maintenance device with pneumatic working mechanism and method for supplying negative pressure to pneumatic working mechanism | |
US5497610A (en) | Process and device for pneumatic feeding of fibers to the fiber collection surface of an open-end spinning element | |
CZ273997A3 (en) | Rotor spinning machine spinning apparatus | |
US5117622A (en) | Fiber supply arrangement for open-end rotor spinning | |
CZ317597A3 (en) | Apparatus for spinning threads on a spindleless spinning machine | |
US6837035B2 (en) | Opening cylinder for an open-end spinning device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MASCHINENFABRIK RIETER AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUEBLER, MARKUS;KROHMER, SIEGFRIED;LOOS, BERND;AND OTHERS;SIGNING DATES FROM 20220512 TO 20220523;REEL/FRAME:060430/0863 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |