JPH02504048A - Method for separating fallen cotton curd and cotton curd - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] A method for separating fallen items from a Konton card and a Koton card The present invention resides in the scope of the claims. Waste or dropped items from the cotton card machine as stated in the preamble to paragraph 1. A method for separating (waste 1 batter) and a method for implementing this method. Regarding cards.

A separator for separating foreign matter (dirt) contained in the fiber material to be carded. It is known to provide pallets on cards (card machines). For example, West Germany A foreign substance separator for cards disclosed in Japanese Patent No. 3034036 is known, Is the foreign material separator located just before the donfing cylinder of the card? Two knife blades are provided. This knife blade has a distance from the cylinder. It is arranged so that the separation is 1iff, and the direction is opposite to the direction of rotation of the cylinder. It is located in Also, this knife blade is placed in front of the acid knife blade. It is located at a distance from the outer circumferential distance from the placed cover sheet, and from the cylinder. Extending a small constant radial distance. This foreign material separator also has , a foot face that follows the knife blade in the direction of rotation of the cylinder; , a suction chamber covering the gap between the sheet and the knife blade. The foot face is covered with a metal card wire. This publicly known The foreign material separator is not used for the purpose of separating short fibers, but simply , cotton husk waste still remaining in the fiber after carding process. and other foreign particles such as dust (these particles are It is used for the sole purpose of separating foreign substances (also called If the impact is adjusted so that the particles can be separated, the fibers are more likely to be damaged. . In the case of this foreign matter separator, the following processing is performed. out of the knife blade The cover sheet, placed in front of the knife blade at a circumferential distance apart, placed at a very small radial distance from the clothing must be done, because if this is not done, the cylinder will close. The fibers during rosing protrude well beyond the closing under this cover sheet. and also placed a small circumferential distance away from this cover sheet. When the fiber reaches the knife blade that has been removed, the fiber hits the knife blade again. This is because it poses a great risk of being damaged. Therefore, this difference To reduce the risk of damage to the fibers in the case of separators, cover above It is necessary to provide a small distance between the seat and the closing of the cylinder . Additionally, by providing this small distance, the following effects can be achieved: If the fibrous material containing foreign matter extends from the cover sheet to the knife blade, When traveling through the existing gap, the foreign material, together with the fibers, is removed from the cylinder. It has the effect of keeping it still within the closing. Therefore, on closing If you want to separate foreign particles that are protruding even slightly in the opposite direction, use the cylinder clamp. Place the knife blade at the smallest possible distance from the rosing is also necessary. This distance of the knife blade from the closing of the cylinder more than the distance of the cover sheet spaced from the if blade in front of it. must be made smaller. However, doing so may damage the fibers. This would further increase the risk of giving. Separates foreign matter In order to be able to do this continuously, the gap between the cover sheet and the knife blade should be A suction chamber that completely covers the gap and forms a seal against the outer circumference of the cylinder. The knife blade and cylinder claw should generate very strong suction. It is possible to prevent the very small gap between the is necessary.

In fact, this strong suction power is required to separate foreign substances fairly efficiently. . Therefore, suction power becomes an important factor when it comes to separating foreign objects; Generating a strong suction force requires a large amount of engineering power. Also, the suction channel Due to the strong suction generated by the bar, it is not attached helically to the cylinder. The space between the closings that form the cover of the cylinder. Although a large amount of air is sucked from the However, it will not be replaced quickly.

This is because the outer circumference of the cylinder is usually cut from the knife blade to the donfing cylinder. closed outwardly by means of a cover provided in the area extending over the This is because that. When a large amount of air is aspirated, the cylinder on the opposite side of the suction chamber There is a lack of air in the area of fiber transmission is adversely affected. Also, the separation of foreign objects is done very carefully and with precise tolerances. To do this, adjust the distance of the cover sheet and the distance of the knife blade from the cylinder. It must be possible, and the suction power is strong, so that the fibers are more or less The blade is lifted above the closing of the cylinder and aligned against the knife blade. It stands to reason that the chances of fibers being struck are increased, and this increases the likelihood that fibers will become damaged. The risk of exposure also increases. This separator is used only for the purpose of separating foreign substances. be done. On the other hand, in addition to foreign matter, most of the very short fibers (fibers with a length of several 1) are It is desired to separate it from the fibrous material. This is because such short fibers It reduces the quality of non-woven fabrics and yarns produced from the above-mentioned textile materials, and This is because the body does not allow such short fibers to pass through spinning.

The object of the invention is therefore a method of the type defined in the preamble of claim 1. Therefore, if possible, the system can be removed without (or with little) risk of damaging the remaining fibers. We decided to provide a method that can separate not only foreign substances but also very short fibers in large quantities. be.

According to the invention, this object is solved by the method according to claim 1. . Moreover, the Kotton card of the present invention used to carry out this method is Listed in Scope No. 5.

This method of the invention can be used not only to separate foreign substances, but also to If the fiber contains short fibers, it can also be used to separate such short fibers. It is. These very short fibers, which are only a few am long, cannot be manufactured using spinning technology. Separation is required for these reasons. The fibrous material that can be separated by the method of the invention is Carding is usually done using a card machine called the so-called Kotton card mentioned above. Any fiber material that is Therefore, the fiber material is made of conoton fibers. It may also be a mixed fiber of cotton fiber and other fibers. Also, Fibers other than tsuton fiber may be used, and fibers may be carded with tsuton card. It may also have a length suitable for monitoring.

Therefore, according to the present invention, not only can foreign substances be separated, but also fiber materials can be very short. It is also possible to successfully separate debris containing short fibers, if they contain short fibers. This separation process is effective against other fibers that are not separated by the fiber separator. The risk of damage to the It can be done in kana mode. In the present invention, the air guide surface and The suction force of the air generated in the air passage between the leading edge of the collector means is divided. It is not necessary to involve the disengagement process, since in the present invention the rotation of the cylinder Using rolling motion, the air flows through the air gap formed along the air guide surface. at least a portion of this air flow between the air guide surface and the collector. iii passage provided between the front edge of the means (this passage is used to separate fallen objects and The short fibers are always passed through the collector means (which also serves as a passageway) This is because it is configured to flow into the means. For this reason, the method of the present invention According to the short fibers and foreign matter already separated and guided into the collector means an exhaust provided in association with the interior of the collector means for sucking the Separates foreign objects and very short fibers without using any means of evacuation, such as air equipment. can be released. In the case of the present invention, the exhaust device generates gas in the separator. The discharged air collects the separated very short fibers and foreign matter by means of a separator collector. It acts only for the purpose of continuous removal from. If desired, another suitable method, e.g. by blowing with at least one blown air jet or Either remove it with a conveyor belt and collect it in the collection space, or take it out by hand from time to time. or, if desired, by air flowing into the collector means through said passageway. You can also.

The invention also includes the distance of the air guide surface from the cylinder and the leading edge of the collector means. It is not necessary to have very tight tolerances on the distances between There's no need to reduce it. Furthermore, in front of the front edge of the separator, the outer periphery is positioning the cover sheet in spaced relation to the cylinder and There is no need to arrange the cover sheets at a certain distance. However, in many cases at a small fixed radial distance from the closing of the cylinder and A cover sheet is disposed stationary in front of the front edge of the vector means, and a cover sheet is disposed in a stationary state in front of the front edge of the the distance of the cover sheet is greater than the distance between the air guide surface and the leading edge It is effective to do so. The cover sheet should be placed close to the air guide surface and The cover sheet overlaps the air guide surface in the direction of the outer circumference of the cylinder. The cover sheet is preferably arranged at a small distance from the outer circumference of the cylinder. The area where the cover sheet is located is placed facing the outer periphery at a distance. Throughout, the hand is prevented from coming into contact with the closing during the rotational movement of the cylinder. form the means to do so. In addition, the cover sheet of the present invention is similar to that of a conventional cotton car. It also satisfies the other functions that cover sheets in cards fulfill. Such a mosquito If a bar seat is provided, it should be mounted at a relatively large distance from the front edge of the collector means. It is effective to arrange a bar sheet. This relatively large distance means that the collector a distance substantially greater than the distance of the air guide surface from the leading edge of the step, preferably is preferably set to at least 2 cm*s, particularly preferably from 3 to 10 cm. death However, this distance is the distance between the cylinder and the area surrounding the solid card. The air gap should be large enough to suck in the amount of air necessary for the operation of the parake. Care must be taken to ensure that

In the case of the cotton card of the invention, the front edge of the collector means and the closing of the cylinder The distance between the can also be set to 1ass, and a distance range of approximately 0.2 to 0.81 is particularly effective. Ru. However, if the can do.

The minimum distance between the air guide surface and the cylinder closing (at the point of this minimum distance is preferably located at the downstream end of the air guide surface) in front of the collector means. It may be less than or equal to the distance between the edge and the closing, but is preferably greater. Listen. This minimum distance is preferably at least 0.4 ahl and/or Preferably, the maximum diameter is 10 mm, within the range of about 0.5 to 7 cm, particularly about 2 to 5 cm. It is effective to do so. However, if They can be separated or placed at a small distance.

The width of the passageway of the collector means, measured in the direction of the outer circumference of the cylinder, is at least 3 mm and and/or thick (but preferably 40m+e).

In particular, it is effective to set this width in the range of 4 to 30 mm, but if The distance can be greater or less than the recorded distance.

radially between the upstream end of said air guide surface and the closing of said cylinder; The distance is the smallest radial distance between the air guide surface and the closing of the cylinder. preferably at least 1.5 times, particularly preferably at least 3 times greater than the Make it a larger size.

In the case of the invention, the front edge of the collector means and the cylinder (i.e. , it is not necessary to define the distance between the cylinder (closing), and this leading edge It is also unnecessary to configure the front edge to be adjustable. It can also be fixed at a specific distance. In that case, this distance The distance remains constant until the end of the useful life of each closing. but While replacing the closing that forms the cover of the cylinder on the cylinder anyway, remove the collector means and then readjust its leading edge to its previous position. or can be positioned at a desired distance from another closing. death However, this adjustment need not be particularly precise. Because according to the present invention For example, the leading edge and serial This is because a wide tolerance can be provided for the distance between the connector and the closing.

Until now, regarding the good separation of short fibers and foreign substances achieved by the method of the present invention, I couldn't find a clear explanation for it. Possible explanations for this point is as follows. That is, each machine room is The air departing from the air contained in the cylinder is transferred to the space between the air guide surface and the cylinder. This means that there is a suction effect within the body. downstream end of air guide surface or separate At the tearing edge of the This causes turbulence. Perhaps this is preserved by the closing thought to be related to the removal of foreign matter (and very short fibers) from the fibrous structure In addition, centrifugal force is also considered to be an important factor. 1! ＜As it should be, According to the experience made so far with cotton fibers, in the case of the present invention, 5 to 5 Although fibers longer than 10 mm were not actually separated, they have lengths up to several 1 Very short fibers are separated by a separator to a significant extent; This can be said to be an extremely effective effect from the viewpoint of spinning technology. of the present invention Another feature of the separator is that it can separate short fibers, short residues of fibers, and foreign matter. However, long fibers are not actually separated.

When the device of the invention is in operation, the rotational movement of the cylinder causes the air gap to pass through the air gap. air drawn in (this air is used to gradually narrow the air gap) (preferably configured to be accelerated in the air gap by at least a portion (preferably a majority) of the flow into the collector means through the collector means, and then at least one the discharged air is discharged through two outlet openings, and this discharged air is discharged into said collector means. It is also used to remove fallen objects that have been guided by. In this regard, the collector Reduce the distance between the stage and the cylinder, preferably between the air guide surface and the cylinder. It is usually particularly advantageous to make the distance much smaller than the minimum distance between the child Another effect obtained by this is that the unit time of flow into the collector means through the passage It is possible to make a particularly large amount of air per unit. If the air It is possible to consider ejecting the fallen objects from the collector means. empty collector means If connected to an air exhaust device, this exhaust device will pass through the passageway to the collector. It becomes possible to discharge the air that has flowed into the means.

If the collector means is not connected to an exhaust system, e.g. or at least one air outlet opening at both longitudinal ends and/or at the periphery. through the outlet opening and into the collector means through the passageway. This allows the air to flow out.

In addition, it is possible to powerfully supply the atmosphere sucked in by the cylinder through the air gap. This causes a lack of air at the outer periphery of the cylinder behind the leading edge of the collector. This eliminates the troublesome problem of Fiber removal is no longer impaired. Furthermore, there is no need to expel air, so energy is saved. You can also save money. Even if the air is vented through the collector means, Since the purpose of discharging is only to dispose of fallen objects, the amount of energy required for this discharging is The energy is negligible, and the foreign matter separator disclosed in West German Patent No. 3034036 A large amount, such as when generating a strong suction force around the outer circumference of a cylinder, such as in a pareque. It does not consume much energy.

Embodiments of the invention are shown in the drawings.

FIG. 1 is a schematic side view of a core card equipped with a separator according to the invention. be.

Figure 2 is an enlarged detailed cross-sectional view of the cotton card with the separator shown in Figure 1. Yes, the separator on the test card used to conduct the experiment to test the separator It is shown at approximately the original size.

Each of FIGS. 3A and 3B is a scaled-down version of FIG. The air guide member has a slightly different structural design than that shown in Figure 2. being done.

FIG. 4 shows a schematic plan view of the separator according to FIGS. 1 and 2 in broken lines (original size). is not).

The cotton card 10 in FIG. 1 functions for carding cotton and fiber materials. However, these fibrous materials can be conveniently carded by card 10. Wear.

The illustrated card 10 is a rotating flat card provided with a rotating flat 14. , the flat card 10 has a rifukine 11 and a series rotating in the direction of arrow B. It has a cylinder 12 and a flying cylinder 13. However, the main Akira can also be applied to other formats of Kotton cards. The separator 15 is , the donfing cylinder 13 in the direction opposite to the rotation direction of the cylinder 120. It is placed a short distance in front of the This separator 15 is actually a spinning - very short lengths of fibers as well as foreign objects (dirt) and dust ( It functions to separate dust).

This separator 15 includes a cylinder extending parallel to the axis of rotation of the cylinder 120. various straight parts, i.e. flat air facing towards the cylinder 12; 1 (flat metal air guide) with side surfaces forming guide surfaces 17; A deformed metal member] 9 and a strip 22 are provided. and these parts are measured parallel to the axis of rotation of the cylinder 12. at least equal in length to the width of the cylinder 12 and its closing 23 respectively; It extends across. The cross-sectional shape of the metal irregularly shaped member 19 is curved into a substantially circular arc shape. In this example, the arc makes an angle slightly greater than 270°. are doing. The profiled member 19 is fixedly attached to a stationary support 20 and is One flat longitudinal end face 21 of the shaped member 19 is provided with a thin flat linear strip. 22 is supported. This strip 22 covers at least the cylinder 12. extending the length of the width of the closing 23 and having a free front edge 24 ing. This front edge 24 extends parallel to the axis of rotation of the cylinder 12. , preferably formed as sharp edges, and a thin cover sheet) 25 (said cover sheet) - The seat 25 follows the curvature of the cylinder 12 in the outer circumferential direction of the cylinder 12. ) is a very small constant radial distance from the outer circumference of the cylinder 12. It is fixed to the card 10 at separated locations. This cover sheet 25 is empty. For the air guide disk 16 forming the air guide member, as shown, the series They overlap in the outer circumferential direction of the conductor 12. Outer circumferential direction of cylinder 12 The width of this air guide disk 16, measured at , is constant.

The free underside 29 of the thin metal strip 22 is flat and its sharp leading edge 24 is formed by a bevel (slanted surface) 27. The upper surface of the bevel 27 is It is arranged adjacent to the inner wall surface 26 of the shaped member 19.

These profiled members 19, strips 22 and air guide disks 6 are - together This forms the collector means 30 of the separator 15.

On the other longitudinally flat end face 32 of the profiled part 19 there is an air guide disk 16. is fixed and in reliable contact with the end surface 32. However, this air gas One feature of the acid disk 160 is that the acid disk 16 can be It can be adjusted parallel to the direction of the head arrow A, so that the cylinder 12 can be adjusted in parallel. the width of the channel 33 open in the direction and the downstream edge of the air guide disc 16 36 and the closing 23 to various values of 6M to obtain the optimal separation and /Or it is configured so that it can be applied to various fiber materials.

The passage 33 is a slot of a constant width through which very short fibers to be separated and foreign matter can pass. to The short fibers and foreign matter that pass through the slots are treated as waste or fallen matter. so that the interior 28 of the collector means 30 can be reached.

As mentioned before, the cover sheet 25 is not absolutely necessary and can therefore be omitted. can be done. In this embodiment, the cover sheet 25 is covers the cylinder 12 in the area where the Make sure your hands don't come into contact with each other accidentally. Cover sheet 25 and front edge 24 (The cough front edge 24 is located at a corner in the rotational direction of the cylinder 12 with respect to the cover sheet 25. (disposed in a relationship across) is relatively large (this distance is For example, it can be set to 20 to 60 av, or even if it is larger than this, it is slightly smaller. However, the distance between the air guide 16 and the leading edge 24 may be significantly greater than the distance between the air guide 16 and the leading edge 24. (preferably set apart), the cylinder 12 is rotated by its rotation. arrows through the air gap 40 formed by the cylinder 12 and other components. Air can be strongly sucked directly from the area surrounding the card 10 in the direction C. Ru.

Flat air guide surface 17 (if desired, this air guide surface) 7 may be slightly curved. ) is the angle a made with the tangent 34 to the cylinder 12. It is arranged in such a way that More specifically, the tangent line 34 refers to the air guide surface 17 The geometrical plane formed by the geometrical envelope of the closing 23 of the cylinder 12 It is an imaginary line drawn from a point on the cylinder 12 that intersects with the envelope surface, and the envelope surface is Envelope formed by the tips of the teeth of the cylinder's closing 23 It is a surface. This angle a is called the inclination angle of the air guide surface 17, and is approximately 10 A range of ~30° is preferred, but angles larger or smaller than this range if It can be done. In the embodiment shown in FIG. 2, this angle is approximately 5°. Ru.

One axial end of the collector means 30 is connected to a hose 37 of an exhaust device 31. It is. The exhaust device 31 removes short fibers, foreign matter and dust from the fiber material on the cylinder 12. The collector means is not capable of generating suction force strong enough to suction dust. The short fibers, foreign matter, etc. collected in the collector means 30 are discharged and transferred by air force. In this embodiment, the discharge and transfer of foreign objects, etc. is carried out manually by the collector. It is configured to pass through the end face of the step 30 in the axial direction. Therefore , the other axial end face of the collector means 30 is closed. of the exhaust system 31 Alternatively, other means for transferring the fallen objects from the collector means 30, for example, A blow nozzle (blower) is provided at one of the two axial ends of the shaped member 19. -ing nozzle) is provided, and this blowing nozzle blows the irregularly shaped member 19. Generates air flow towards the other axial end, separating very short fibers and a collection box connected to the other axial end of the profiled member 19; The air is blown out by air force into a device that sucks short fibers and foreign matter. It may also be configured to use airflow.

The flat underside 29 of the strip 22 is approximately tangential to the cylinder ]2. Preferably, the distance of the lower surface 29 from the cylinder 12 is greater than the distance of the front surface 29 from the cylinder 12. Edge 24 (minimize the distance at the front edge 24 by a suitable method) ) and increases slightly in the direction of cylinder 120 rotations in the direction of arrow B). Configure it as follows. Along the outer circumference of the cylinder 12, at the rear of the strip 22 is a seam. A tote-shaped metal cover 35 is continuous. This metal cover 35 is attached to the cylinder 12. It is arranged opposite to the cylinder 12 with a small distance from the cylinder 12. It extends to Linda 13. This metal cover 35 is This protects the cylinder 12 from touching the cylinder 12 in the area where it is located.

If desired, this sheet-like metal cover 35 can be attached to a card holder that is fixed to the card 10. It can also be replaced with a cutting plate. Regarding the effect caused by the separator 15 This is not important as long as you do.

The sharp leading edge 24 and the outer periphery of the cylinder 12 (i.e., the closing of the cylinder 12) 23) It is preferable to adjust the distance between 0.2 and 1.0 mm, or Additionally, this distance remains constant during the service life of each closing of cylinder 12. distances may be adjusted to suit the value and, if necessary, distances smaller (or larger) than the above ranges can.

As mentioned earlier, there is no need to set exact tolerances for this distance. .

The air guide surface 17 is flat in this embodiment, but may be non-linear if necessary. shape, for example slightly curved in the shape of an arc or any other arbitrary shape. Can also be done.

The downstream end of the air guide disk 16 has a straight edge 36 (sharp or blunt). The edge 36 is parallel to the axis of rotation of the cylinder 12 and extends at least Both extend over almost the entire width of the closing 23. While card 10 is in operation , the air flow generated by the rotational movement of the cylinder 120 (this air flow is (flowing in the direction of arrow C through the air guide surface 17 through the air guide surface 17) is Hereinafter, this edge 36 will be referred to as a "tearing edge". edge) The flow passes through the passage or inlet 33 of the collector means 30 and into the interior 28 of the collector means 30. This introduces a very short separator and foreign matter into this interior 28. Ru.

At this time, the front edge 24 of the strip 22 has an advantageous effect.

The air gap 40 becomes narrower toward the downstream side.

The side of the air gap 40 facing the cylinder 12 is bounded by an air guide surface 17. The opposite side is partially covered with a cover sheet 25 as shown. Also, a part of the cover sheet 25 continues in the direction of rotation of the cylinder 12. The boundary is defined by the outer peripheral portion of the cylinder 12. This air gap 40 The end adjacent to the axial end of the collector 30 may be closed or open. You can stay there.

The rotational movement of cylinder 12 creates an air flow in the direction of arrow C.

This air flow passes through the air gap 40 toward 1i 133, as shown. air from the ambient atmosphere surrounding the card through the air gap 40. and transfer it into the space between the cylinder 12 and the passage 33. For this purpose, cover - The seat 25 shields (or completely shields) the air gap 40 from the cylinder 12. (i.e. the air guide surface 17 must not be covered). i.e. at least the width continuing in the upstream direction from the tear edge 36. along the cylinder 12, that is, the air gap is free in the radial direction. Keep it. The size of this air gap 40 is determined by the rotational movement of the cylinder 12. Due to the large air gap that gradually narrows from the atmosphere surrounding the card The size is such that air can be effectively sucked into 40 in the direction of arrow C. child As shown in FIG. 2, the air gap 40 of The boundary is defined by cylinder 12, while on the left side, part of the boundary is defined by cylinder 12. being admired. In this embodiment, the remainder is delimited by the cover sheet 25. ing. This air gap 40 is connected to the image screen (i-118ge plan) shown in FIG. Even at its narrowest point when measured in step e), the cover sheet 25 and the series The cover sheet preferably has dimensions wider than a small distance between the cover sheet and the This area between the port 25 and the cylinder 12 is provided on the outer periphery of the cylinder 12. The air side is almost completely blocked by the fiber material. For this reason, in practice, the passage All air reaching the air gap 40 directly from the area surrounding the card The air is sucked by the cylinder 12 through the air.

The air guide surface 17 is freely disposed in radially opposed relation to the surface 17. Together with the extending region of the cylinder 12 and also with the cover sheet 25, It can be said that an air gap is formed. Alternatively, the cover sheet 25 may be omitted. or, if formed with short dimensions, in opposing relation to the air guide surface. Only the area of the cylinder 12 that extends forms a funnel-shaped air gearing 40. This air gap 40 gradually narrows in the direction of rotation of the cylinder 12. ing. The air gap 40 is filled with a gas due to the rotational movement of the cylinder 12. Air from the w4 area surrounding the card 10 is drawn in directly and continuously. Airgi Since the cap 40 gradually becomes narrower toward the downstream side, this sucked air is increased in flow velocity within the air gear 40. The speed of this airflow is Its maximum velocity is reached in the space between the edge 36 and the cylinder 12. this The airflow is torn at the edge 36 to form a vortex within the passageway 33, at least A portion also flows into the interior 28 of the collector means 30.

During operation, the separator 15 is free from foreign objects or actual carding on the cylinder 12. (These short fibers are practically impossible to spin.) can be strongly separated. Foreign matter and unspun short fibers passes through passage 833 to the interior 28 of collector means 30, from where it preferably or can be removed in the pneumatic continuous manner described above.

The distance e between the tearing edge 36 and the leading edge 24 is the same as that of the air guide disk 16 itself. can be adjusted by moving parallel to the direction of the double-headed arrow A. This distance The separation e can be made small in any way, preferably 31 and 3011IIK as a maximum value, and if It can be set to a value smaller or larger than the range. Examination card (car As a result of a series of tests using When this happens, the separation of short fibers and foreign matter increases continuously in proportion to the decrease in distance. It turned out that. Although no test was conducted to further reduce this distance WAe, It is also possible to make it smaller. In any case, the passage 33 is clogged for some reason. If there is a risk of

While performing these tests, the inclined air guide disk 16 itself is Due to the parallel displacement in the plane, the distance from the cylinder 12 (i.e. from the cylinder 12) distance if of the tearing edge 36 of the disk 16 (from the closing 23 of the conductor 12) has also changed. In the case of this test card, this distance f is equal to the distance e of 411 m1. At times, 0.51 still existed. This ensures the best results for the above tests. was obtained, but very good results could be obtained using other distances as well. .

For example, set the distance e to 81 and the distance f to 1.51, or set the distance e to 121 and the distance Hr to 3. When selecting 1, very good results were obtained. On the other hand, the distance e is 24an , it can be used even if the distance f is set to 6-, but if the above dimensions are selected Compared to this, the results were very poor. Of course, this result It also varies depending on the type of fiber material to be coated.

According to the invention, textile materials can be spun with high efficiency and in a surprisingly simple manner. Impossible short fibers and fiber rests can be separated. Like Although this separation has been desired, it has not been possible to achieve this easily until now. . Furthermore, according to the present invention, foreign particles and dust contained in fiber materials can be separated with high efficiency. If these foreign objects or dust cannot be separated, use a separator. It also eliminates the harmful risk of damaging long fibers that are not separated by can.

Some other dimensions of the separator 15 in FIG. 2 provided on the test card. The law may be defined as follows: In this regard, implementing the method of the invention Of course, other dimensions and modifications other than those described below are possible. Second In the case of the above test card according to the diagram, the air guide disk measured parallel to the adjustment direction A The width of the hole 16 is approximately 30 mm. Furthermore, the inner radius of the irregularly shaped member 19 is approximately 25 mm. , the outer radius is approximately 32.5a+m. The flat underside 29 of the strip 22 It is arranged substantially tangentially to the cylinder 12. The diameter of the cylinder 12 is 1. 29 m, and the thickness of the air guide disk 16 is 11 mm. air guide di The downstream edge 36 of the screen 16 provides light to the air flowing along the air guide surface 17. The tear edge is configured to form a secure tear edge. For this purpose, the edges (Tear edge) 36 is a flat edge that is approximately perpendicular to the air guide surface 17. with a sharp edge at the transition from this edge 36 to the air guide surface 17. can be provided. However, the downstream straight line of the air guide disk 16 Other structural designs for the edge 36 are also possible. This tear edge 3 6 extends parallel to the axis of rotation of the cylinder 12.

Adjustment of the air guide surface 17 relative to the collector means 30 is not possible (although it is possible). Alternatively, it is also possible to form the air guide surface 17 by a profiled member 19. Also If desired, the leading edge 24 can also be formed from the profiled member 19. This is the easiest In this case, the collector means including the air guide surface 17 can be arranged in a single profiled part. It can be configured by

The closing 23 of the cylinder 12 is made of an all-steel car as is known in the art. Preferably, it is formed by closing.

A hose 37 connected to the axial end of the collector means 30 as shown in FIG. The air evacuation bag 231 equipped with This allows the device to be constructed at low cost. card 10 If the exhaust device 31 is provided in the center of the card 10, air will be exhausted from other parts of the card 10 as well. be able to. If desired, other features, e.g. exhausting air from the interior 28 of the collector means 30 at both axial ends of the collector means 30; configuration and/or at least one location on the outer periphery of the collector means 30 (e.g. the collector hand). It is also possible to adopt a configuration in which the air is discharged at a central portion in the longitudinal direction of the stage 30.

Instead of pneumatically removing fallen objects from the interior 28 of the collector means 30, other For example, by using an axially moving ram. , periodically discharging fallen objects from the interior 28 of the collector means 30 into a waste confectionery container or the like. Alternatively, the acid collector means 30 can be axially aligned along the base of the collector means 300. By slowly circulating an endless conveyor that runs in the direction of It may also be configured to remove the

The separator 15 is placed near the dotting cylinder 13, preferably near the dotting cylinder 12. It is particularly effective to arrange it in front of the dotting cylinder 13 when viewed in the rotational direction. Ru. However, other arrangements are also possible. In addition, if necessary, the present invention A plurality of separators 15 can be combined in a cotton card.

In the embodiment of FIG. 2, the torn edge 36 of the air guide surface 17 It is arranged at the downstream end of the disk 16 and the air guide surface 17, and this configuration , is particularly effective in the case of the embodiment shown in FIG. However, tear edges 36 and Other configurations of the air guide member 16 are also possible. Figures 3A and 3B Two examples are shown. In the embodiment of FIG. 3A, the air guide member 16 is formed of a sheet metal member or the like having an irregular angle. This air guide member 1 6, the leg 44 fixed to the irregularly shaped member 19 has only the air guide surface 17. and the other 845 is bent into the collector means 30 at an angle of 90° or more. It is now possible to collect lost items. This irregularly shaped sheet metal member 16 Due to the bent edges, the downstream end of the air guide surface 17 has a sharp edged pull. A crack edge 36 is formed.

In the case of the embodiment shown in FIG. 3B, as shown in the figure, the The torn edge 36 of the air guide member 16 is connected to the crank-shaped portion of the air guide member 16. 42. The tearing edge 36 thus separates the air guide surface 17 It is arranged between an upstream end 46 and a downstream end 47 of.

In the embodiment of FIG. 3B, if desired, the air guide Member 16 can also be extended. In this way, the air guide member 16 is a fallen object collection surface extending fully into the means 30 and introduced into the collector means 30; In this embodiment, the leading edge 24 preferably forms a when viewed in parallel and radially spaced relation to the extension 48. It is placed. For this reason, the air guide member 16 has a front edge 24 as shown in the figure. It overlaps the area below the collector means 30 which is the starting point.

each air gap 40 (through which the cylinder 12 (which sucks air by the rotational movement of) forms an air duct. The air duct can also be called a short air duct in all embodiments. Ru.

40 I-1 Commissioner of the Japan Patent Office Yoshi 1 ) Moon Takeshi 1. Indication of patent application　　PCl”/EP881005653, Patent applicant 5. Date of request for correction letter: March 30, 1989 6. Contents of amendment (1) In the translated text 'ip, page 4, line 2, after "It is not suitable.", add the following statement. insert.

"A foreign matter separator similar to the foreign matter separator described in claims 1 and 5 of the present application. Retar has been awarded West German Patent No. 3331362 and U.S. Patent '84307796. Disclosed in the issue. "The scope of the claims 1. Carding Conton or other types of fibrous materials with Koton Card This is a method of separating fallen objects using a separator with a collector means in between. In this case, the collector means is provided with a passageway, and the passageway is connected to a series of cards. located at a small distance from the cylinder and opposite said cylinder and located in front of said cylinder. A boundary is formed by the edge, and foreign matter present on the outer circumferential surface of the cylinder is a method for separating fallen objects configured to be introduced into said collector means through said passageway; In the method, the separator is provided with a rotational movement of the cylinder. and sucks atmospheric air through an air gap that is open toward the surrounding area, and a gap is bounded by an air guide surface facing said cylinder; and generates an air flow flowing through the passageway and into the collector means. By means of a co/ton card, characterized in that the foreign matter is entrained in the air flow of While carding cotton or other types of fibrous materials, collector means are provided. How to separate fallen objects using a separated separator.

2. Continuing said fallen objects introduced into said collector means, preferably by pneumatic force. 2. A method according to claim 1, characterized in that the method comprises:

3. Flows through the air gap and is sucked by the rotational movement of the cylinder. The airflow is torn at the tearing edge of the air guide surface. The method according to claim 1 or 2.

4. The air flows through the air gap and is suctioned by the rotational movement of the cylinder. 2. The air flow according to claim 1, wherein said air flow is carried out within said air gap. The method according to any one of Range 1, 2, or 3.

5. A trick card for carrying out the method according to any one of the above claims. , a cylinder (12), and a cylinder (12) disposed on the outer circumference of the cylinder (12). and a separator (15) provided with a passage (33). a passageway (33) is arranged at a small distance from the closing of said cylinder (12); and extending transversely to the rotational direction of the cylinder (12). the front edge of the collector means (30); (24) forms a boundary, and within the outer peripheral area of the cylinder (12) , at least a region in front of the separator (15) is connected to the cylinder (12). The cover sheet (25) provided at a small radial distance from the In a funton card that is constructed to be qualitatively completely covered, The separator (15) is provided with an air gap (40), and the air gap (40) The cap (40), viewed in the direction of rotation of the cylinder (12), (30) located in front of the front edge (24) of the cylinder (12); communicates with the outer periphery of and is partially formed by the outer periphery; The air gap (40) is bounded on one side by an air guide surface (17). and the air guide surface (17) extends over at least substantially the entire width of the closing. The cylinder (12) extends transversely to the rotational direction of the cylinder (12), and further extends in the front direction. The other side of the air gap (40) faces the separator (15). A boundary is formed by the edge of the cover sea) (25), and the collector C in the means (30): The passage (33) passing through the cylinder (12) It is characterized by being arranged at the rear of the air guide surface (17) when viewed in the direction of rotation. A trick card to do.

6. At the downstream end (36) of the air guide surface (17), the air guide the distance between the surface (17) and said cylinder (12) is minimized and/or is the front edge (24) of the collector means (30) and the clamp of the cylinder (12). The distance between the air guide surface (17) and the cylinder (12) is characterized by being smaller than the distance between said closing (23). A co-noton card according to claim 5.

7. The air gap (40) is configured to allow the air to flow along at least a portion of its length. The gap (40) gradually narrows toward the downstream side when viewed in the direction of air flow through the gap (40). The core card according to claim 5 or 6, characterized in that: .

8. Said collector means (30) is provided with a jacket (19), said collector means (30) being provided with a jacket (19); The jacket (19) has a curved cross-sectional shape and is preferably shaped by a profiled member. The i-circuit (33) is located inside the jacket (19) (28). Preferably, the jacket (19) and the passageway (33) are The clamp of the cylinder (12) is measured parallel to the axis of rotation of the cylinder (12). characterized by extending over at least substantially the entire width of the rosing (23) The trick card according to any one of claims 5, 6, or 7. .

9. The collector extends parallel to the axis of rotation of the cylinder (12). The longitudinal end face (21) of the jacket (19) of the means (30) is provided with the A strip (22) comprising said leading edge (24) of the rector means (30) is fixed. The lower surface (29) of the cough strip (22) faces the cylinder (12). and extending substantially tangentially to the cylinder (12). The trick card according to claim 8.

10, the air guide member (16) with the air guide surface (17) is connected to the air guide surface (17); of the jacket (19) extending parallel to the rotational axis of the cylinder (12). arranged on the longitudinal end face (32), preferably in an adjustable manner The trick card according to claim 8 or 9, characterized in that:

11. that said leading edge (24) of said collector means (30) is a sharp edge; Conton card according to any one of claims 5 to 10 characterized by: .

12° said front edge (24) of said collector means (30) and said cylinder (12) and the closing (23) of at least Q, ] mm and/or is 11, preferably about 0.21 to 0.8 ms at most. The core card according to any one of claims 5 to 11, characterized in that:

13. The air guide surface (17) and the closing (12) of the cylinder (12) 23) is at least 0.4 cm and/or 10 mm; Preferably at most about 0.5 mm to 7 mi, especially about 2 to 5 IllIffl. The trick according to any one of claims 5 to 12, characterized in that: Ton card.

14. When measured in the outer circumferential direction of the cylinder (12), the collector means (3 0) the width of said passageway (33) is small (both 3ms+ and/or 40+nm). and preferably at most 4 m− to 30+n*. The trick card according to any one of items 5 to 13.

15, the air guide surface (17) is substantially flat and faces the cylinder (12); The extension angle (a) of said air guide surface ( ) 7 is preferably at least 10 '' and/or preferably at most 30@ The trick card according to any one of Items 5 to 14.

]6. said cover sheath (25) bounding said air gap (40); ) and the air guide surface (17) overlap each other. The Conton card according to any one of claims 5 to 15.

17, the separator (15) is located at the front when viewed in the rotational direction of the cylinder (12); In front of the donfing cylinder (13), the donfing cylinder (13) Any one of claims 5 to 16, characterized in that they are arranged close to each other. or the Conton card described in paragraph 1.

18, said air guide member (16) is provided with a tear-off edge (36); The air flow generated by the rotational movement of the cylinder (12) and the air gap The airflow flowing through (40) is torn by said tearing edges (36). A part of the air gap (40) is connected to the air guide surface (1). 7) Any one of claims 5 to 17 characterized in that it is formed by The trick card described in item 1.

198 that said tearing edge (36) is located at the end of said passageway (33); The trick card according to claim 18, characterized by:

20, said tearing edge (36) is freely opposed to said tearing edge (36); said air guide from the closing (23) of said cylinder (12) located in The line of the air guide surface (] 7) where the radial distance of the air guide surface (17) is the minimum In other words, the cocoon according to claim 18 is arranged in a region. Tuton card.

21, the upstream end of the air guide surface (17) and the claw of the cylinder (12) radial distance between the air guide surface (17) and the sill (23). of the minimum radial distance between the closing (23) of the conductor (12) and the closing (23). is characterized in that it is at least 1.5 times larger, particularly preferably at least 3 times larger. The trick card according to any one of claims 5 to 20.

international search report international search report EPε800565 SA23108

Claims (1)

[Claims] 1. Carding cotton and/or other types of textile materials with cotton carding In the method of separating fallen objects with a separator during Due to the rotational movement of the cylinder of the cotton card, the area surrounding the cotton card is removed from the front. Air is drawn into the separator through an air gap partially formed by the shilling. Suction and transfer this airflow to the longitudinal air gap wall facing the cylinder. The air flows toward the cylinder along the air guide surface forming the extending at least in part from said air gap to the leading edge of the collector means. located opposite the cylinder at a small distance from said cylinder through a passageway The foreign matter and the fiber material on the outer circumferential surface of the cylinder are caused to flow into the collected collector means. If there are very short fibers liberated from the debris, air is directed through said passageway into said collector means and air is exhausted from said separator. All of this allows the separator to operate very effectively even when air flowing into the separator through the passageway of the collector means. air is automatically evacuated from said collector means through at least one opening. cotton and/or other types of fibers by cotton card, characterized in that A method of separating fallen objects using a separator when carding materials. 2. Said fallen objects introduced into said collector means are preferably pneumatically coupled. 2. A method according to claim 1, characterized in that the method comprises: 3. flows through the air gap and is attracted by the rotational movement of the cylinder. The air flow is torn at the tear edges of the air guide surface and Particularly, the crack edge preferably forms a downstream end of said air guide surface. The method according to claim 1 or 2, characterized in that: 4. flows through the air gap and is attracted by the rotational movement of the cylinder. Preferably, said air liquid is accelerated within said air gap to form said tear edge. maximum flow velocity is reached at and/or the leading edge of said collector means rearwardly of said air guide surface and/or its tearing edge, seen in the direction of rotation of the conductor. in spaced relationship from the air guide surface and/or its tear edges. Claims 1, 2, or 3, characterized in that The method described in any one of the above. 5. A cotton card for carrying out the method according to any one of the above claims. The separator (15) is provided with an air gap (40). An air gap (40) communicates with the outer periphery of the cylinder (12) and the air gap formed in part by the cylinder (12) and facing the cylinder (12); The longitudinal side surface of (40) is open by the air guide surface (17), and the air The air guide surface (17) is located at the bottom of the closing (23) of said cylinder (12). spaced from said closing (23) over substantially the entire width of said cylinder. (12) extends in a transverse direction with respect to the rotational direction of the cylinder (12); Behind said air guide surface (17), seen in the direction of rotation, a collector means (30) is provided. A passageway (33) is arranged at a distance from the air guide surface (17). and extending transversely to the rotational direction of the cylinder (12). The front edge of the collector means (30) is located on the longitudinal side of the passageway (33). A section (24) is provided, the leading edge (24) being near the cylinder (12). at a small distance from said closing (23) of said cylinder (12). a stationary cover sheet that is arranged to cover the outer peripheral area of the cylinder (12); (25), and the cover sheet (25) extends from the cylinder (12). located at a small and constant radial distance and located outside said cylinder (12). The cover sheet (25) extends in the circumferential direction, and the cover sheet (25) further extends in the cylinder (12). ) of said front edge (24) of said collector means (30) when viewed in a direction opposite to the direction of rotation of said collector means (30). in front of the air guide surface (17), which is greater than the distance from the leading edge (24) to the air guide surface (17). The air guide surface (17) is located close to the air guide surface (17) at a distance of A cotton card with a signature. 6. At the downstream end (36) of the air guide surface (17), the air guide the distance between the surface (17) and said cylinder (12) is minimized and/or is the front edge (24) of the collector means (30) and the clamp of the cylinder (12). The distance between the air guide surface (17) and the cylinder (12) is characterized by being smaller than the distance between said closing (23). The cotton card according to claim 5. 7. The air gap (40) allows the air to flow along at least a portion of its length. When viewed from the direction of air flow through the gap (40), it gradually narrows toward the lower side. The cotton card according to claim 5 or 6, characterized in that: . 8. The collector means (30) is provided with a jacket (19), which The jacket (19) has a curved cross-sectional shape and is preferably shaped by a profiled member. The passageway (33) is located within the interior (28) of the jacket (19). preferably said jacket (19) and said passageway (33) communicate with said jacket (19) and said passage (33). The cross section of the cylinder (12) is measured parallel to the axis of rotation of the cylinder (12). extending over at least substantially the entire width of the lining (23). The cotton card according to any one of claims 5, 6, and 7. 9. the collector extending parallel to the axis of rotation of the cylinder (12); The longitudinal end face (21) of the jacket (19) of the means (30) is provided with the A strip (22) comprising said leading edge (24) of the rector means (30) is fixed. The lower surface (29) of the strip (22) faces the cylinder (12). and preferably extending substantially tangentially to the cylinder (12). The cotton card according to claim 8, characterized by: 10. The air guide member (16) with the air guide surface (17) of said jacket (19) extending parallel to the axis of rotation of the cylinder (12); arranged on the longitudinal end face (32), preferably in an adjustable manner The cotton card according to claim 8 or 9, characterized in that: 11. that said leading edge (24) of said collector means (30) has a sharp edge; Cotton card according to any one of claims 5 to 10 characterized by . 12. the leading edge (24) of the collector means (30) and the cylinder (12); and said closing (23) of at least 0.1 mm and/or 1 mm, preferably about 0.2 mm to 0.8 mm at most. The cotton card according to any one of claims 5 to 11. 13. the air guide surface (17) and the closing (12) of the cylinder (12); 23) is at least 0.4 mm and/or 10 mm; It is preferably about 0.5 mm to 7 mm at most, particularly about 2 to 5 mm. The cotton card according to any one of claims 5 to 12. 14. When measured in the outer circumferential direction of the cylinder (12), the collector means (3 0) the width of said passageway (33) is at least 3 mm and/or 40 mm; Claim 5 characterized in that the diameter is preferably 4 mm to 30 mm at most. The Kofton card according to any one of Items 1 to 13. 15. Said air guide surface (17) is substantially flat and faces said cylinder (12). The angle of inclination (a) of said air guide surface (17) is preferably at least 10 and/or preferably at most 30°. The Kofton card according to any one of Items 5 to 14. 16. The cover sheet (25) is arranged on the side facing the air guide surface (17). delimiting a portion of said air gap (40); said cover sheet; (25) overlaps the air guide surface (17). The cotton card according to any one of claims 5 to 15. 17. The separator (15) is close to the doffing cylinder (13). Preferably, the door is disposed in the direction of rotation of the cylinder (12). Claims characterized in that it is arranged in front of the ffing cylinder (13). The cotton card according to any one of items 5 to 16. 18. Said air guide member (16) is provided with a tearing edge (36), said tearing edge (36) A crack edge (36) is preferably located in front of the edge of said passageway (33), and An air flow generated by the rotational movement of the cylinder (12), which is connected to the air gap. The airflow flowing through the pipe (40) is torn by said tearing edge (36). A part of the air gap (40) or the air guide surface ( 17), and preferably said tearing edge (36) is formed by said tearing edge (36). The claw of said cylinder (12) is placed freely opposite the crack edge (36). the radial distance of the air guide surface (17) from the ring (23) is minimized; characterized in that it is arranged in a line or area of the air guide surface (17). The cotton card according to any one of claims 5 to 17. 19. The air gap (40) is generated by the rotational movement of the cylinder (12). The airflow flowing through the air gap causes the airflow to flow through the air gap. be arranged so that it has a velocity component directed in the direction of rotation of the cylinder (12); The cotton carton according to any one of claims 5 to 18, characterized in that Do. 20. The upstream end of the air guide surface (17) and the claw of the cylinder (12) radial distance between the air guide surface (17) and the sill (23). of the minimum radial distance between the closing (23) of the conductor (12) and the closing (23). is characterized in that it is at least 1.5 times larger, particularly preferably at least 3 times larger. The cotton card according to any one of claims 5 to 19.