EP1229157A1 - Machine de traitement de flocons de fibres textiles - Google Patents
Machine de traitement de flocons de fibres textiles Download PDFInfo
- Publication number
- EP1229157A1 EP1229157A1 EP01129906A EP01129906A EP1229157A1 EP 1229157 A1 EP1229157 A1 EP 1229157A1 EP 01129906 A EP01129906 A EP 01129906A EP 01129906 A EP01129906 A EP 01129906A EP 1229157 A1 EP1229157 A1 EP 1229157A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- textile fiber
- processing machine
- fiber flakes
- cleaning
- flakes
- 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.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
- D01G9/14—Details of machines or apparatus
- D01G9/20—Framework; Casings; Coverings; Grids
Definitions
- the invention relates to processing machines for textile fiber flakes, in particular on blowroom machines for cleaning fiber flakes, with one or several cleaning stages, one of these cleaning stages being a rotating one Roll includes, which transports the textile fiber flakes by their rotation and thereby the textile fiber flakes pass at least once at at least one cleaning point.
- Fiber cleaning machines generally work pneumatically / mechanically by moving the fiber flakes in an air stream around a roller (cleaning or opening roller) equipped with mechanical cleaning elements that rotates around their axis and at the same time past cleaning points with stationary, mechanical cleaning elements.
- This means that the fibers in the form of flakes are fed by pneumatic means, brought to the cleaning points with the cleaning elements, cleaned with these mechanical means and conveyed on from there again.
- the present invention is preferably used in coarse cleaning machines, although it can of course also be used in a correspondingly adapted form in other cleaning machines.
- Typical coarse cleaning machines with mechanical cleaning elements are shown, for example, in the documents EP 381 859 B1, EP 408 491 A1, or EP 381 860.
- the functioning of such a cleaning machine from the prior art will now be explained with reference to FIGS. 1 to 3.
- the cleaning machine 3 shown in FIG. 1 has an opening roller 2, which is usually equipped with striking elements 1 and is mounted in a housing so as to be rotatable about a horizontal axis.
- the opening roller 2 is rotated in operation by a drive motor, not shown, in the direction of the arrow according to FIG. 1.
- the housing 3 Above the top of the opening roller 2, the housing 3 has an inlet 4 and an outlet 5 for a conveying air flow which transports textile fibers in the form of flakes.
- the inlet 4 is arranged at one end of the roller 2, while the outlet 5 is arranged at the other end of the roller 2.
- baffles 6, 7 and 8 Arranged between the inlet 4 and the outlet 5 above the top of the opening roller 2 are three baffles 6, 7 and 8 which are inclined to the axis of the roller and which delimit two transfer chambers between the top of the roller 2 and the upper wall of the housing. Bar gratings with grate bars approximately parallel to the roller are arranged under the underside of the opening roller 2. As shown in FIG.
- two groups of grate bars 9 and 10 are arranged one behind the other in the circumferential direction of the opening roller 2 in this cleaning machine.
- the first and the last grate bar of groups 9 and 10 are also shown in FIG. 2, from which it can also be seen that, in addition to the group of grate bars 9, a third group of grate bars 11 is arranged in the direction of the axis of the roller 2 , In the same way, a fourth group of grate bars (not numbered) lies in the direction of the axis of the roller 2 next to the group of grate bars 11. In this device there are therefore four cleaning points. In operation, the textile machine flakes to be cleaned and dissolved are fed in a conveying air flow through the inlet 4.
- the conveying air with the fiber flakes essentially flows for the first time around the underside of the rotating opening roller 2 past the cleaning points 9 and 10.
- the flakes are then transported through the transfer chamber between the guide plates 6 and 7, which move the air in the direction of the axis of the opening roller 2, over the roller.
- the flakes then flow again around the underside of the roller 2, again past the cleaning points with the grate bars.
- the flock flow is then passed through the transfer chamber between the guide plates 7 and 8 and finally flows again around the underside of the roller 2, past the last two cleaning points.
- the flakes finally leave the machine through outlet 5.
- the flakes of fiber are processed or taken along by striking elements 1. The loosening of impurities takes place in a kind of plucking and beating process.
- the flakes are guided past the grate bars of the grates or cleaning points by the striking elements 1 in a streaking and striking manner, so that they increasingly dissolve into smaller flakes and contaminants are separated or chipped off from the fibers (especially from the fiber surface).
- the four groups of grate bars 9, 10, 11 and the non-numbered group can be adjusted independently of one another with respect to the opening roller 2 in the machine shown. These groups can therefore also be referred to as four different cleaning points, because each group can be adjusted individually and therefore can be cleaned differently aggressively.
- the adjustability relates primarily to the angle of attack which the grate bars assume with respect to the direction of rotation of the roller 2 (see FIG. 3).
- Rotating the grate bars normally also changes the distance between the grate bars and the impact circle of the roller 2, which has an additional effect on the aggressiveness of the cleaning.
- the grate bars can each be pivoted such that the angle of attack of the grate bars can gradually increase or decrease in a group (not shown).
- the grate adjustment elements 12 are used for the adjustment, the exact functioning of which is not relevant for this application and is therefore not described.
- the angle of attack ⁇ (see Figure 3) is adjustable between zero and 30 degrees.
- the locking element has a set, the teeth of which are laterally offset from one another. It is used to separate the air flow including impurities from the flake flow and to guide the flakes onto the clothing roller.
- the set of the locking element can have needles or saw teeth, for example.
- the blocking element has the task of holding back the fiber flakes and separating them from the air flow.
- DE 31 27 544 apparently a similar device.
- an air-permeable comb is provided after the flake feed device, which deflects the flakes onto a clothing roller and thereby separates the flakes from the transport air.
- the comb has narrow slits, the width of which is smaller than the fiber flake size. This device thus also exerts a blocking effect on the flakes, ie it retains the flakes.
- the object of the invention is that Effect of the cleaning points and the cleaning machines described at the beginning to improve.
- the object is achieved in that at least one cleaning point Means are assigned which control the movement of the textile fiber flakes affect the rotating roller, but do not hold back the textile fiber flakes or card.
- the restraint means that the elements / means according to the invention have an influence on the movement of the textile fiber flakes, it disturb or hinder, so to speak, but these means do not prevent the flow of material. So you are not holding back the flakes.
- These agents do not constitute a release or retention agent such as a sieve or a lamella shaft to keep the air from the Separate flakes (see described prior art).
- the means have too no carding effect, therefore they are not carding elements.
- Carding elements have the function of dissolving the fiber flakes in individual fibers and the individual fibers to stretch and parallelize. These functions can be performed according to the invention Not meet means.
- the agents can be a cleaning point or grate bars assigned, but need not be part of it.
- the means are concerned they are individual, separate elements with an elongated shape, they are preferred a pin.
- These agents have a quasi-independent effect on the cleaning point.
- the agents according to the invention can also be used alone, i.e. without grate bars, form a cleaning point.
- These agents influence or disrupt the movement the fiber flakes as they are transported around the rotating roller.
- the Textile fiber flakes hit these agents and / or are deflected. there the flakes can also break down into smaller flakes.
- FIGS. 1 and 2 show a coarse cleaner known from the prior art and described at the outset, without the subject matter of the invention.
- the agents according to the invention can be installed at the various cleaning points of the coarse cleaner.
- the subject matter of the invention is in no way limited to use in coarse cleaners, even if it is preferably used there.
- An application is conceivable and possible in all processing machines for textile fiber flakes, in which the effect according to the invention described below is desirable.
- the subject matter of the invention is preferably installed in cleaners which are intended for the blow room or card shop of a spinning company.
- an adjustable grate bar 69 is shown, which is part of a cleaning point.
- the cleaning points normally consist exclusively of grate bars.
- FIG. 4 shows a detailed view of a preferred installation variant of the subject matter of the invention in a coarse cleaner according to FIG. 1.
- the machine is shown from the other side in comparison to FIG. 1, which is why the roller 2 rotates counterclockwise.
- the cleaning point 16 consists of individual adjustable grate bars (only four grate bars are shown in the figure), which can be adjusted via the grate adjusting element 12. With the change in the angle of attack, the distance of the grate bars to the impact circle 15 also changes.
- the means 14 are arranged in a rake-like manner (see FIGS.
- the incorporation of the agents according to the invention has different effects. These effects lead to an overall increase in dirt excretion.
- the basic effect of these agents can be seen in the fact that the movement of the fiber flakes is influenced.
- the flakes are transported around the rotating roller (but it could also be several rollers), the flakes are deflected by the means according to the invention or their movement is disturbed.
- the flakes can hit or hit the medium.
- this can lead to the flakes being crushed.
- the flakes Similar to the interaction of striking elements and grate bars, the flakes also strike the means 14 according to the invention. On the one hand they are distracted in their movement, on the other hand they are "plucked up” and increasingly dissolve into smaller flakes.
- the agents according to the invention are not carding elements.
- the agents can offer considerably greater resistance without this leading to an increased loss of good fibers. Because below the middle there is no opening for the outlet, as with the grate bars. An increased resistance of the agents may therefore lead to an increased risk of constipation, but does not have to be associated with an increased loss of good fiber.
- the flakes are more or less crushed. As already described, the cleaning process takes place in a conventional cleaner in that the flakes bounce back and forth between the striking elements 1 and the grate bars.
- the agents exert a general disturbing or distracting effect on the movement of the fiber flakes.
- the cleaning process basically takes place on all flakes.
- every point on the flake surface has to come into contact with the mechanical cleaning elements an equal number of times.
- the same areas of the surfaces tend to come into contact with the cleaning elements.
- the flake surface is not cleaned equally well everywhere, which can lead to a measurable deterioration in the cleaning effect. If agents according to the invention are installed in cleaners, they act as disruptive or turning elements and help to minimize the deterioration just described.
- the flakes are deflected by the means and thereby additionally "disturbed” in their movement. This deflection causes the flakes to undergo an additional change in their direction of rotation, which helps to bring the flake surface into contact with the cleaning elements as evenly as possible.
- the braking effect of the agents on the fiber flakes can be described as a third effect. If the flakes strike the medium, they experience a high negative acceleration. The flakes are decelerated to zero speed for a moment. This gives the material flow a discontinuous speed, which has a positive impact on cleaning.
- the agents also have the same effect as the grate bars, which corresponds to a fourth effect.
- the flakes can bounce like conventional mechanical cleaning elements, knocking out dirt adhering to the surface.
- the device according to the invention is that it is the efficiency of the actual Indirectly improve cleaning areas by using the best possible starting conditions create for the actual cleaning process (smaller flakes, change the direction of rotation etc.).
- the agents according to the invention influence cleaning, but do not intervene directly in the process, as is the case when adjusting the grate bars would happen. These devices therefore do not have to go directly to the cleaning point belong. One can therefore speak of assigned means, but separately from the actual cleaning point.
- FIG. 5 A further application of the agents according to the invention is shown in FIG.
- the elements of FIG. 5 largely correspond to those of FIG. 4.
- means according to the invention are also located in front of the cleaning point 16 (reference number 14.1). These are also arithmetically arranged.
- the means 14.1 are arranged in two rows, the subject matter of the invention in the first row differing from those in the second row by their shape. While, viewed in the direction of rotation of the roller 2, the means 14.1 in the first row are designed as a square with a relatively steep angle of attack, ie a small angle of inclination ( ⁇ ), the means of the second row have a circular pin shape, which is cut off obliquely at the top.
- the angle of inclination ⁇ of the second row is also somewhat larger, and the distances to the impact circle are slightly different. If means are provided in front of a cleaning point, these should preferably be arranged at a somewhat greater distance from the following cleaning point. The agents cause a deflection of the material flow, so that cleaning elements that follow too closely may be “skipped” by the flakes. As shown in FIG. 5, an additional guide element 17 for the flocculation can also be provided to alleviate this effect.
- the most suitable arrangement of the elements according to the invention in terms of positioning, number of rows and shape depends primarily on the characteristics of the processed fibers. The best arrangement can best be determined empirically.
- FIGS. 6 and 7 each show a possible arrangement of means according to the invention, which are fastened in groups on a common carrier.
- the figures show two possible forms for the means.
- the elements according to the invention have a square shape.
- they have the shape of tips.
- the forms shown here are of course only examples.
- the elements could have a variety of other shapes.
- their distance from the impact circle and the angle of inclination ⁇ can be chosen as desired.
- the distance a between individual means arranged in the axial direction of the roller is 30 to 80 mm (division between the individual means).
- the elements according to the invention preferably have an angle of inclination ( ⁇ ) of 0 to 20 degrees, preferably 15 degrees. It is recommended to select the inclination angle ( ⁇ ) positive (as shown in Figure 5). At negative angles of inclination there is a risk of fiber accumulation and consequent blockage.
- the elements are mounted on a common support in the two figures. This makes assembly easier. Depending on the type of production, beams and elements can also be made from one piece.
- the means in the two FIGS. 6 and 7 are arranged in a row in a rake-like manner. Of course, an offset arrangement is also conceivable. As can be seen from the explanations of these two figures, there are also a multitude of possibilities for implementing the invention.
- FIG. 8 A further possibility of applying the inventive concept is shown in FIG. 8.
- a cleaning point 18 is shown, which consists only of the elements 14 according to the invention. Openings are provided between the rake-like means in order to separate out impurities. All elements are mounted on a curved common support. The four rows shown are staggered.
- FIG. 9 schematically shows an adjusting device for a group of means according to the invention. The elements 14.2 are also fastened here on a common support. They are arranged in a line in the manner of a rake and their distance from the impact circle can be adjusted via the device 19.
- the setting device 19 shown includes a worm gear with a fine thread.
- the angle of inclination ( ⁇ ) of the means 14.2 can be adjusted by the linkage 20.
- the setting device shown is to be understood as an example, other devices for setting the means are also conceivable.
- the grate can also be adjusted via the device 12 here.
- Not shown in the figure is the possibility that the means can also be adjusted during operation.
- the device 19 can be adjusted on the basis of the cleaning efficiency, taking into account the characteristics of the fiber flakes being processed. It is conceivable that various measuring devices and sensors are attached to the cleaning machine, which measure the cleaning quality and intensity online (eg in the outlet). Using a suitable controller (not shown), these can influence or optimize the setting of the elements according to the invention.
- FIG. 10 shows possible forms of the means.
- the elements according to the invention are shown in two views, in cross section and from the side. As shown, they can be pin-shaped, needle-shaped, or as tips, or as square, or as flat bars, trapezoidal, prismatic.
- the means can also have a pyramid or trapezoidal shape.
- the upper surfaces can be cut parallel to the lower surface or obliquely as with the square. In certain applications, it could be beneficial to sharpen the edges. This results in a more aggressive behavior of the agents according to the invention.
- the idea of the invention can thus generally be applied to processing machines for textile fiber flakes, in particular to cleaners or coarse cleaners of the blow room, with one or more cleaning stages, one of these cleaning stages being intended to comprise at least one rotating roller or another mechanical construction which transports the textile fiber flakes.
- the textile fibers can be transported, for example, by rotating them.
- the textile fibers When transporting the textile fiber flakes, they should be guided past at least one cleaning point at least once. In particular, this can be a cleaning point with grate bars.
- the invention on such a machine can be characterized in that at least one of these cleaning points is assigned means which influence the course of movement of the textile fiber flakes around the rotating roller, but do not hold back or card the textile fiber flakes.
- the agent according to the invention need not be a component that belongs directly to the cleaning point, even if it can. For example, it is not part of the grate bars, but a component that is independent of the cleaning point.
- the agent according to the invention is particularly independent in its effect.
- the setting of the agents according to the invention can also be matched or optimized to the setting of the mechanical cleaning elements.
- the agents according to the invention are preferably pin-shaped elements.
- the idea of the invention includes the possibility that the cleaning point contains one or more grate groups, which can consist of individual or more grate bars.
- the rotating roller of the processing machine for textile fiber flakes can be equipped with striking elements.
- the rotating roller can be assigned a cleaning point, preferably on its underside. This can include roughly parallel grate bars that are adjustable in their angle of attack.
- the agents according to the invention are preferably arranged in a rake-like manner over the entire width of the cleaning point. In a particularly preferred variant, the cleaning point has the width of the rotating roller.
- the means, viewed in the flock transport direction are preferably arranged after a cleaning point. However, the idea of the invention also includes the possibility that the means, viewed in the flock transport direction, are arranged in front of a cleaning point.
- the means are preferably arranged in a computational manner, possibly in a number of rows one behind the other.
- the positioning of the agents according to the invention is expediently chosen so that the distance between the uppermost point of a agent and the impact circle of the rotating roller is smaller than the grating distance to the impact circle of the assigned cleaning point.
- the distance between the uppermost point of the means and the impact circle is preferably 3 mm to 10 mm, particularly preferably 6 mm.
- the distance between individual means arranged in the axial direction of the roller will be 30 to 80 mm (division between the individual means).
- the agents according to the invention also preferably have an angle of inclination ( ⁇ ) of 0 to 20 degrees, preferably 15 degrees.
- the agents according to the invention can have different shapes, but they are preferably pin-shaped, needle-shaped, or as tips, or as square, or as flat irons, trapezoidal, prismatic. In a further application form of the inventive idea, any edges of the means have a certain sharpness.
- the means can be attached to individual carriers.
- the idea of the invention includes the possibility that the means according to the invention can be adjusted in their inclination angle ( ⁇ ) and / or in their distance from the impact circle by means of a suitable adjusting device. In a further embodiment, this device can be designed in such a way that the adjustment of the means can take place during operation and the adjustment of the adjustment device takes place on the basis of the cleaning efficiency, taking into account the characteristics of the fiber flakes being processed.
- the agents according to the invention are preferably installed in cleaners, in particular in coarse cleaners. These cleaners or coarse cleaners are preferably used in the blow room of spinning mills.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1822001 | 2001-02-02 | ||
CH1822001 | 2001-02-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1229157A1 true EP1229157A1 (fr) | 2002-08-07 |
Family
ID=4431396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01129906A Withdrawn EP1229157A1 (fr) | 2001-02-02 | 2001-12-15 | Machine de traitement de flocons de fibres textiles |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1229157A1 (fr) |
CN (1) | CN1370860A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103741268A (zh) * | 2013-11-29 | 2014-04-23 | 吴江市大业丝绸整理有限公司 | 一种用于清理杂纤维的装置 |
EP4019676A1 (fr) * | 2020-12-22 | 2022-06-29 | Trützschler Group SE | Dispositif sur ou dans une machine textile et machine textile équipée d'un tel dispositif |
CN115893068A (zh) * | 2022-08-09 | 2023-04-04 | 南通万富佳纺织有限公司 | 一种防止飞絮堵塞的纺织加工用传输辊 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105862184B (zh) * | 2016-06-01 | 2018-01-12 | 金陵科技学院 | 一种圆梳机用取落棉装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1457832A (en) * | 1922-10-06 | 1923-06-05 | James T Hall | Cotton opener |
GB611409A (en) * | 1945-09-13 | 1948-10-29 | Roberto Roman Fanton | Improvements in or relating to wool cleaning machines |
US4993118A (en) * | 1989-01-31 | 1991-02-19 | Maschinenfabrik Rieter Ag | Cleaning machine for textile fibres having improved grate bar arrangement |
WO1997000983A1 (fr) * | 1995-06-23 | 1997-01-09 | Crosrol Limited | Dispositif de traitement de fibres |
-
2001
- 2001-12-15 EP EP01129906A patent/EP1229157A1/fr not_active Withdrawn
-
2002
- 2002-01-31 CN CN 02103327 patent/CN1370860A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1457832A (en) * | 1922-10-06 | 1923-06-05 | James T Hall | Cotton opener |
GB611409A (en) * | 1945-09-13 | 1948-10-29 | Roberto Roman Fanton | Improvements in or relating to wool cleaning machines |
US4993118A (en) * | 1989-01-31 | 1991-02-19 | Maschinenfabrik Rieter Ag | Cleaning machine for textile fibres having improved grate bar arrangement |
WO1997000983A1 (fr) * | 1995-06-23 | 1997-01-09 | Crosrol Limited | Dispositif de traitement de fibres |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103741268A (zh) * | 2013-11-29 | 2014-04-23 | 吴江市大业丝绸整理有限公司 | 一种用于清理杂纤维的装置 |
EP4019676A1 (fr) * | 2020-12-22 | 2022-06-29 | Trützschler Group SE | Dispositif sur ou dans une machine textile et machine textile équipée d'un tel dispositif |
CN115893068A (zh) * | 2022-08-09 | 2023-04-04 | 南通万富佳纺织有限公司 | 一种防止飞絮堵塞的纺织加工用传输辊 |
CN115893068B (zh) * | 2022-08-09 | 2023-11-10 | 安徽鼎宏橡塑科技股份有限公司 | 一种防止飞絮堵塞的纺织加工用传输辊 |
Also Published As
Publication number | Publication date |
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CN1370860A (zh) | 2002-09-25 |
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