JP2005171476A - Method for operating fine spinning frame with suction system for spinning position and fine spinning frame with suction system for spinning position - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact and inexpensive suction system. <P>SOLUTION: In one passage comprising plural portion passages (32a, 32b), negative pressure is generated by plural fans (330f, 330a, 330b) at the center or connected with the portion passages (32a, 32b), and all passages are provided at the center of a fine spinning frame so as to be spatially separated from each other by installing a partition plate (32ab). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is a method of operating a spinning machine equipped with a suction system for a spinning position, wherein an outlet from the spinning position is provided via a plurality of suction pipes having different functions and at least one passage. It relates to the derived form. Furthermore, the present invention is a spinning machine equipped with a suction system for a spinning position, wherein a plurality of suction pipes are arranged corresponding to the spinning positions, and at least one passage is arranged correspondingly to these suction pipes. It is related to the format. In particular, the present invention relates to a spinning machine equipped with a compression device, as described, for example, in DE 101 45 266.0.

  The spinning machine for producing the spun yarn is advantageously produced as a double-sided ring spinning machine, in which two rows of spinning positions are connected to one or more suction passages. Such spinning machines are described in German Patent 3,611,824 and German Patent 3,810,588.

  When the spinning machine is configured with a plurality of, particularly two, suction positions for each spinning position, there is a single suction passage in which suction pipes at different suction positions are opened. Or a plurality of similar suction positions in one spinning position, each connected to a separate suction passage. In the case of the ring spinning machine, the plurality of suction positions provided at the outlet of the drawing machine are connected to the first suction passage, while the suction position of the compression device arranged adjacent to the drawing machine is It is separated from one passage and connected to a second passage disposed in the spinning machine.

In the prior art, the negative pressure required for drawing machine draw and compression machine draw can be brought to each spinning position, in particular as follows. That is:
1. A common suction unit is correspondingly arranged in a single main passage (for the drawing machine suction and compression device).
2. The drawing passages and the suction passages of the compression device each have an auxiliary unit for generating negative pressure and integrate a plurality of spinning positions.
3.1 Each passage for the suction and compression device of the spinning machine at the spinning position is locally separated and arranged in the spinning machine or above the spinning machine, and each passage is a dedicated suction unit. have.
German Patent No. 1014526.0 Specification German Patent No. 3611824 German Patent No. 3810588

  The object of the present invention is to provide a compact and inexpensive suction system.

  In order to solve this problem, in the present invention, in one passage composed of a plurality of partial passages, a negative pressure is generated at the center or by a plurality of fans connected to the partial passages, and all the passages are located at the center of the spinning machine. The individual passages are provided so as to be spatially separated from each other by incorporating a dividing plate. Furthermore, a plurality of partial passages are arranged in the center of the spinning machine below the drawing machine, and individual suction passages open only to the same kind of suction pipes, and different suction pipes are located at different spinning positions. It was arranged.

  The dependent claims relate to advantageous refinements. Another independent claim and its dependent claims relate to variations of the proposed system.

  The suction system of the spinning machine according to the present invention is characterized in that a plurality of partial passages are arranged in the center of the spinning machine below the drawing machine. In this case, each suction passage is arranged corresponding to the spinning position of the spinning machine. Only the same kind of suction pipe is opened, and different suction pipes are arranged at different positions in the spinning position and perform different functions.

  That is, in the present invention, the arrangement of the system for guiding the negative pressure to the spinning position is performed at the center of the spinning machine, supported by the base frame and immediately below the drawing machine. 1 above. Similar to the arrangement described in the above, the generation of the negative pressure is effected via a central unit provided at a defined position of the spinning machine, in particular at one end of the spinning machine. However, said 1. Unlike the concept described in, the passage is divided in such a way that the sucked-in air stream is separated from the drawing machine and the compression device, ie spatially separated and guided through the spinning machine. Done. This has the advantage that the negative pressure in the at least two passages can be adjusted independently of one another in an energetically and technically optimal manner. Guiding the passage or partial passage in the center is the above-mentioned 2. And 3. The configuration described in is greatly simplified.

The shaping of the cross section on the side of each passage for the suction of the drawing machine and the compression device is carried out optimally each time according to the requirements of the location to be sucked in one or more spinning positions. In this case, various configurations can be considered. That is:
Within a plurality of rows of passages or a plurality of partial passages, the negative pressure is generated centrally or by a plurality of units connected to the partial passages. In this case, all the passages are provided in the center of the spinning machine, in particular the individual passages are separated from each other by the incorporation of a dividing plate. However, this spatial division may be realized by two or more independent passages arranged in close proximity and extending parallel to each other. Each negative passage has a different negative pressure because the negative pressure in each passage or passage portion of the same kind or in some passages or passage portions of the same kind can be adjusted independently. Before the air flow is introduced into each passage or passage portion, the exhaust of a plurality of spinning positions, i.e. "sections", is collected in the intermediate reservoir for the first time in succession for all relevant spinning positions. May be introduced into the main passage or passage portion through only one opening. Advantageously, one passage portion for exhaust of the compression device is arranged so as to be higher than the other passage portions, so that the correspondingly arranged connecting pipe pieces can be better fixed. The negative pressure generated in the center is changed by the use of one or more variable speed motors by one suction unit or fan or a plurality of such devices, in this case in order to change the rotation speed A frequency converter may be provided or an impeller can be used. The geometry of these impellers is variable so that the desired negative pressure can be adjusted according to the application. In addition, the pressure level in the passage can be varied by means of flaps or vanes arranged in the passage or in the passage walls. The adjustment of the optimum negative pressure required for suction of the drawing machine or the compression device can be carried out by a control device provided with necessary adjustment means. When operating a spinning machine equipped with a data processing program and the corresponding equipment, the optimum negative pressure or optimum based on the spinning yarn number to be spun, the selected draft value and, for example, the specified spindle speed A negative pressure characteristic line can be calculated over the coping motion and adjusted by the adjusting means. Since the origins of the outlets of the individual passages are different and are derived separately, these outlets can be separated separately, for example by means of a filter, and individually dusted or reused.

  In the following, the best mode for carrying out the invention will be described in detail with reference to the drawings.

  In FIG. 1, a suction system 30 is housed in the center of the spinning machine below the drawing machine 20 as seen in the cross section of the spinning machine 10, and in this case, the first partial passage 32a and the second partial passage are provided. 32b and the third partial passage 32c are supported on the horizontal surface of the plate 12 and are located above the spinning frame 14. A plurality of such plates 12 are provided at regular intervals on the spinning machine, and are connected by a longitudinal member 18 in the base frame of the spinning machine. The drawing machine 20 and the spinning position 15 are located on the right side and the left side of the symmetry plane E in the center of the spinning machine indicated by the one-dot chain line. Suction pipes 32, 34 are arranged corresponding to the individual spinning positions 15 in the region of the continuous machine 20. In the illustrated embodiment of the drawing machine 20, a load device 24 having a plurality of pressing rollers is located opposite to the three cylinders 5, 6 and 7, in which case the cylinder 7 is located inside the suction device 7a. The suction device 7a is connected to the passage 32b through the suction pipe 34. On the other hand, each drawing machine is provided with a corresponding suction pipe 32 for the fiber sliver, and this suction pipe 32 opens into a partial passage 32c. The cylinder 22 can generally be referred to as a suction cylinder, which may be realized by a breathable apron configured as a member that circulates endlessly via at least two turning sections. As described above, it is advantageous to dispose the drawing machine 20 on the left side of the center plane E indicated by the alternate long and short dash line or above the spinning position 15. The first partial passage 32a serves to accommodate the exhaust from the suction pipe for the drawing machine provided on the left side of the spinning machine. The drawing machine is configured in a mirror image with respect to the drawing machine provided on the right side. One or a plurality of drawing machines 20 are respectively fixed to a support 12 a, which is fastened above the suction system 30 and supported by the plate 12. A combination consisting of a cylinder 7 with a perforated surface and a suction element 7a located below it serves as a compression device 11 for the knitted fiber sliver, which is spun at the spinning position 15. It is wound up as a thread.

  FIG. 2 shows a similar device corresponding to FIG. 1, in which the partial passages 32a, 32b, 32c are each configured as a closed passage which may be arranged independently of each other in the spinning machine. Has been. For example, in the case of a spinning machine without a compression device, the middle passage 32b may be omitted.

  In FIG. 3, the suction system 30 may be configured as a combination of overlapping passages 32a, 32b. A suction pipe 34 for compression is opened in the upper passage, whereas a suction pipe 32 for the drawing machine is opened in the lower passage. The suction system 30 shown in FIG. 3 is configured as one main passage having a horizontal partition located inside, whereas in FIG. 4, both partial passages 32a and 32b are provided vertically. Alternatively, it may be configured as a self-supporting passage. A dividing plate is indicated by reference numeral 32ab.

  As schematically shown in FIG. 4, the partial passages 32a and 32b and the other passage 32c shown in FIG. 1 or 2 are also connected to the plate 12 and / or the support 12a by tongues 56a and 56b. Good. Advantageously, the coupling member is configured as a U-shaped member 56c between the support 12a and the partial passage 32b or bent into a hook shape between the support 12a and the partial passages 32b, 32a or the plate 12. The flat iron member 56d may be configured. The partial passages 32a, 32b, 32c are preferably incorporated in succession in the longitudinal section of the spinning machine, so that, in combination with the plate 12 and the longitudinal member 18, the stabilization of the spinning machine support structure. Can contribute to sex.

  FIG. 5 shows the same or similar parts as FIG. 1, 2 or 4, and in this case, in particular, the configuration of the partial passages 32a, 32b, 32c is shown. The partial passages 32a, 32b, and 32c can be composed of two bowl-shaped surfaces 60a, side plates 60b, and coupling members 60c. In this case, these component members 60a, 60b, The end regions of 60c are in contact with each other and are brought together by a fastening member 60d. These fastening members 60d are also coupled to the tongues 56a, 56b via coupling members, threaded pins or screws indicated by broken lines, which are, for example, the support 12a or the plate. 12 is screwed. In this way, a very stable and inexpensive structure of the suction system or the partial passages 32a, 32b, 32c is provided. The remaining reference numerals not described in FIG. 5 correspond to the reference numerals in FIG. For example, FIG. 5 schematically shows a drive 40 for a ring frame 41 of a ring spinning machine, which allows the spinning ring 42 to move vertically in order to wind the yarn around a bobbin. Is shifted over the length of the spindle 15 '.

  FIG. 6 schematically shows a plan view of the suction system 30 with three partial passages 32a, 32b, 32c. Since the three partial passages 32a, 32b, and 32c communicate with each other at the end opposite to the fan 330, an air flow can flow from one passage to the other passage. Since the flap or blades 326 provided at the end of the passage can be brought to different positions, the plane 320; 322 is shifted. From this plane 320; 322 the air flow is directed in both longitudinal directions of the passage. In this way, the accumulation of floating fibers in the plane can be prevented. In FIG. 6, the flap 326 shown by a broken line can be swung to the state where one passage 32c is completely separated from the other partial passage 32b; 32a. For example, if two flaps 326 are arranged as shown and these flaps 326 are individually adjustable, the flaps or vanes are adjusted to be in close proximity or apart from each other. This can affect the pressure level between the passages 32a, 32b and the passage 32c. In this regard, it is additionally or selectively advantageous that a separate flap 327 is provided at each passage end near the fan 330f in order to influence the air flow. The exhaust continues to be led to the exhaust passage 332. As described with reference to FIG. 5, the suction pipe 34 for the compression device 11 shown in FIG. 1 is connected to the middle passage 32b, whereas the suction pipe 32 for the drawing machine 20 is connected. Are connected to the outer passages 32a, 32c. This arrangement form is not inevitable, and the exhaust of the compression device 11 is introduced into the outer passage 32a through the suction pipe 32, while the exhaust of the suction portion of the drawing machine 20 is passed through the suction pipe 34 to the middle passage. 32b may be introduced. A motor 330d is arranged corresponding to the fan 330f, and a frequency converter 330e is arranged corresponding to the motor 330d. The impeller 330g can be changed in its geometry by adjusting the vane 330k. The flaps 327 provided with the adjusting means are respectively connected to the control device 330h, and the control device 330h also controls the frequency converter 330e.

  The passages or partial passages 32a, 32b, 32c can advantageously accommodate a plurality of sensors 330m at the end of the passage opposite the fan 330 of the spinning machine, these sensors 330m for pressure monitoring. And connected to the control device 330h. For example, when one partial passage such as the upper partial passage 32a shown in FIG. 6 is more or less blocked, the pressure in the passage changes, and in this case, the absolute pressure increases or the negative pressure decreases. . The change in pressure is detected by a suitable sensor 330m and is evaluated by this control device 330h by connecting this sensor to the control device 330h as indicated by the dashed line. Depending on the control program stored in the controller 330h, an alarm signal displayed to the spinning worker can be generated, or a spinning machine stop signal for interrupting operation can be generated. The measurement signal of the sensor 330m can also be used to control the pressure in the partial passages 32a, 32b, for example by adjusting the flap 327 or by affecting the rotational speed of the fan 330a. Correspondingly, the differential pressure based on different measurements of the sensor 330m provided in the partial passages 32a, 32b, 32c can also be evaluated. The dotted line surrounding the partial passages 32a, 32b suggests that the suction system may have only two partial passages 32a, 32b. In this case, the upper two sensors 330m are provided for monitoring the pressure in the partial passage.

  The schematic shown in FIG. 6 may be interpreted differently than described above. That is, the exhaust gas from the passages 32a, 32b, and 32c first flows into the filter 330f and then flows into the fan 332.

  FIG. 6 a shows a schematic perspective view of the partial passages 32 a, 32 b, 32 c, in which case the flap 326 can pivot together with the blades 38. The blade 38 can cover the first opening 35 and the second opening 36 at the center position of the blade 38 or the flap 326. As shown in FIG. 6a, when the shaft 326a is pivoted counterclockwise by the vane 38 or flap 326 drive to the position shown, the second opening 36 is exposed and the flap 326 is shown in FIG. Located at the position written by the broken line. As a result, as shown by arrows on the outlet sides of the partial passages 32a and 32b in FIG. 6a, a larger air flow is supplied through the passage 32c than in normal operation to clean the passage 32c. The air entering the passage 32c through the opening 36, which increases the total air volume in the partial passage 32c, is indicated by an arcuate dashed arrow.

  FIG. 6b shows the possible air flow in the partial passages 32a, 32b, 32c similar to that already illustrated in the description of FIG. In the passage 32a, a part of the air flow may be directed in the direction opposite to the normal flow direction, and a part of the exhaust flow rate may be directed to the passage 32b. A plurality of filters 330a, 330b, and 330c may be arranged at one end of the partial passages 32a, 32b, and 32c, and these filters 330a, 330b, and 330c separately remove floating fibers that are led out through the passages. Make it possible. Similarly, a plurality of fans 330a, 330b, and 330c may be disposed at the ends of the passages 32a, 32b, and 32c. In order to influence the pressure level or the negative pressure level, it may be advantageous to drive the fan 330f or the fans 330a, 330b, 330c at different rotational speeds. As described above, this is performed by connecting the fan drive motor 330d to the frequency converter 330e, or the drive motor is configured so that the magnetic poles are variable. Operation is possible at the number of rotations. That is, the members denoted by reference numerals 330a, 330b, and 330c symbolize the filters and / or fans provided at the ends of the passages 32a and 32b.

  7 and 7a, the suction pipe 32 may be first connected to the collecting pipe 33, which is also connected to one of the partial passages 32a, 32c via the connecting pipe 33a. It's okay. As indicated by the symbol A, the connecting pipe 33a preferably opens obliquely into the main passage 32a. The collecting tube 33 extends over a plurality of spinning positions and can be easily replaced, particularly for cleaning purposes. Each suction pipe 32 can be fixed to the collection pipe 33 by a holder 33b that is circumferentially engaged with the collection pipe 33. In this case, the holder 33b is connected to the suction pipe 32 along the circumferential surface of the collection pipe 33. Can move together. It is understood that an opening exists in the collecting pipe 33 in the area of the suction pipe 32. A seal 33 c is preferably arranged between the suction pipe 32 and the collecting pipe 33.

  Similar to the configuration shown in FIG. 7, in FIG. 7 b, the partial passages 33, 32 a and 33, 32 b may be arranged over one partial length of the spinning machine, and in these partial passages 33, 32 a and 33, 32 b The suction pipes 32; 34 having different functions are opened. In this case, the partial passage opens into the main passage 330. Two fans 330 may be disposed at each end of the passage 31. The pressure monitor 331 that detects an unacceptable pressure change may be accommodated in the spinning position 32, the collecting pipe 33, and / or the main passage 32a. The pressure monitor 331a may be configured such that a thread 331b protruding from the passage is pivotally attached to an upper side of a flap pivotally fixed to the suction passage. In this case, the position change of the flap and the yarn is discriminated by the operator.

FIG. 4 is a cross-sectional view of a spinning machine with a central suction passage having three rows.

It is the figure which showed the change Example of the suction passage.

It is a cross-sectional view of two rows of passages arranged in an overlapping manner.

It is the figure which showed the arrangement | positioning format corresponding to FIG. 3 provided with the two partial channel | paths mounted by overlapping.

FIG. 3 is a cross-sectional view of one embodiment of a single passage having three rows.

FIG. 6 is a schematic plan view of a suction system with three rows and a fan.

It is the figure which showed the air flow in a channel | path schematically.

It is the figure which showed the air flow in a channel | path schematically.

FIG. 5 shows an embodiment for the connection of the suction pipe to the partial passage.

FIG. 5 shows an embodiment for the connection of the suction pipe to the partial passage.

It is the figure which showed the Example similar to FIG.

Explanation of symbols

  5, 6, 7, 22 cylinder, 7a suction device, 10 spinning machine, 11 compression device, 12 plate, 12a support, 14 spinning frame, 15 spinning position, 15 'spindle, 18 longitudinal member, 20 strip Machine, 24 load device, 30 suction system, 31 main passage, 32,34 suction pipe, 32a, 32b, 32c partial passage, 32ab dividing plate, 33 collecting pipe, 33a connecting pipe, 33b holder, 33c seal, 35, 36 opening , 40 drive device, 41 ring frame, 42 spinning ring, 56a, 56b tongue, 56c U-shaped member, 56d flat iron member, 60a bowl-shaped surface, 60b plate, 60c coupling member, 60d tightening member, 320, 322 Flat, 326,327 flap or Wings, 330a, b, c filter, fan, 330d motor, 330e frequency converter, 330f fan, filter, 330 g impeller, 330h controller, 330k blade, 330 m sensors, 331 pressure monitor, 331b yarn, 332 exhaust passage

Claims (21)

A method of operating a spinning machine with a suction system (30) for a spinning position (15), wherein the outlet from the spinning position (15) has a plurality of suction pipes (32, 34) having different functions. And at least one passage (32a)
In one passage composed of a plurality of partial passages (32a, 32b), negative pressure is generated in the center or by a plurality of fans (330f, 330a, 330b) connected to the partial passages (32a, 32b), Suction system for the spinning position (15), characterized in that the individual passages (32a, 32b) are provided in the center of the spinning machine so as to be spatially separated from each other by the incorporation of a dividing plate (32ab) (30) The operating method of the spinning machine provided with.   Only after collecting the exhaust from the plurality of spinning positions (15), or “sections”, into the collecting pipe (33) before introducing the air flow into each passage (32a) or each passage portion, 2. The method as claimed in claim 1, wherein the main passage (31) or the partial passage (32a) is introduced continuously via only one opening for the spinning position (15) or the connecting pipe (33a).   The negative pressure generated in the center is varied by means of a suction unit (330) or fan or a plurality of such devices (330a, 330b, 330c) using one or more variable speed motors (330d). In order to change the rotation speed, a frequency converter (330e) can be provided, or an impeller (330g) having a variable geometry can be used, so that a desired negative pressure can be obtained depending on the application. The method according to claim 1, wherein the method can be adjusted.   Additionally, the pressure level in the passage (32a, 32b, 32c) is varied by flaps (326, 327) or vanes located in the passage (32a) or in the passage wall or dividing plate (32ab). 4. The method according to any one of 1 to 3.   The adjustment of the optimum negative pressure necessary for the suction of the drawing machine (20) or the compression device (11) is carried out by means of a control device (330h) provided with the required flaps and adjusting means (327). Item 5. The method according to any one of Items 1 to 4.   The spinning machine is operated by a data processing program and a corresponding control device (330h), the optimum negative pressure or negative pressure based on the spinning yarn number to be spun, the selected draft value and, for example, the specified spindle speed The method according to claim 1, wherein the optimum characteristic line is continuously calculated over the copping motion and adjusted by the adjusting means (327).   7. The outlet according to claim 1, wherein the outlets of the individual passages (32 a, 32 b) of different origin are derived separately, for example separated separately in the filter (330 a) and individually treated or reused. The method described. A spinning machine equipped with a suction system (30) for the spinning position (15), wherein a plurality of suction pipes (32, 34) are arranged corresponding to the spinning position, and at least one of these suction pipes is provided. In the type in which two passages (32a) are arranged correspondingly,
A plurality of partial passages (32a, 32b, 32c) are arranged in the center of the spinning machine below the drawing machine (20), and the individual suction passages (32a) open only to the same kind of suction pipes (32). A spinning machine with a suction system (30) for the spinning position (15), characterized in that different suction pipes are arranged at different locations of the spinning position (15).   In one passage composed of a plurality of partial passages (32a, 32b), the fan (330, 330a) is provided by a plurality of units (330, 330a, 330b) in which negative pressure is connected to the central passage or the partial passages (32a, 32b). The individual passages (32a, 32b) are spatially separated from each other by the incorporation of a dividing plate (32ab), the whole passage being provided in the center of the spinning machine. The spinning machine described.   The spinning machine according to claim 8 or 9, wherein the spatial division of the suction system (30) is realized by two or more parallelly arranged passages (32a, 32b) extending parallel to one another.   11. The individual passages have different negative pressures, since the negative pressure in the passage parts (32a, 32b) can be adjusted independently by means of flaps or vanes and adjusting means (326, 327). The spinning machine according to any one of the above.   A suction pipe (32, 34) extends between the plurality of spinning positions (15) and the collecting pipe (33), and the suction pipe is connected to the main passage (31) or the partial passage by the connection pipe (33a). The spinning machine according to any one of claims 8 to 11, wherein the spinning machine is connected to (32a).   The spinning machine according to any one of claims 8 to 12, wherein the passage portion (32b) for exhausting air from the compression device (11) is arranged higher than the other passage portion (32a).   A negative pressure generated in the middle is used by one suction unit (330) or fan or a plurality of such devices (330a, 330b, 330c) using one or more variable speed motors (330d). Is variable and is provided with a frequency converter (330e) to change the rotation speed, or there is an impeller (330f) with adjustable vanes (330g) or a motor (330d) The spinning machine according to any one of claims 8 to 13, wherein poles are switchable.   The spinning machine according to any one of claims 8 to 14, wherein flaps (326, 327) or blades are arranged in the passages (32a, 32b, 32c).   A control device (330h) connected to the flap and adjusting means (327) is provided to adjust the optimum negative pressure required for the drawing machine (20) and the compression device (11), respectively. Item 16. The spinning machine according to any one of Items 8 to 15.   The fine spinning machine according to any one of claims 8 to 16, wherein the spinning machine is equipped with a data processing program and a corresponding control device (330h) connected to the adjusting means (327) for adjusting the negative pressure. Spinning machine.   18. Spinning machine according to any one of claims 8 to 17, wherein individual filters (330, 330a) are provided for the individual passages (32a, 32b).   The spinning machine according to any one of claims 8 to 18, wherein a sensor (330m) for monitoring the pressure in the partial passages (32a, 32b) is provided.   A sensor (330m) is connected to the control device (330h) and relates to the measured pressure or negative pressure in the partial passage (32a) to display the pressure and / or the pressure in the partial passage. The control signal can be generated by the control device, for example, by moving the flap (327), or the drive device controls the rotational speed of the fan (330a) connected to the control device (330h). The spinning machine according to any one of claims 8 to 19, wherein   21. Any one of claims 8 to 20, wherein a pressure monitor (331) for detecting unacceptable pressure changes is housed in the spinning position (32), the collecting pipe (33) and / or the main passage (32a). The spinning machine described in the item.

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