EP0764222A1 - Intermediate storage device - Google Patents
Intermediate storage deviceInfo
- Publication number
- EP0764222A1 EP0764222A1 EP96907244A EP96907244A EP0764222A1 EP 0764222 A1 EP0764222 A1 EP 0764222A1 EP 96907244 A EP96907244 A EP 96907244A EP 96907244 A EP96907244 A EP 96907244A EP 0764222 A1 EP0764222 A1 EP 0764222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- store
- waste material
- storage
- memory
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/28—Air draught or like pneumatic arrangements
Definitions
- the invention relates to a device and a method for removing and collecting waste material (e.g. fibers, shell parts, dust, etc.) resulting from the processing of a textile machine according to the preamble of claim 1 and the preamble of method claim 21.
- waste material e.g. fibers, shell parts, dust, etc.
- the separated components such as combed short fibers (noils)
- a suction device such as CH-PS 503 126
- the material sucked off by a blower being fed to a separating device in the form of a rotating drum.
- the material that accumulates on the drum is separated from the main conveying air flow and condenses into a fiber layer.
- the fiber layer is then sucked off by a suction channel assigned at a suitable point and conveyed via a transport channel to a discharge collecting station.
- the outlet collecting station can also consist of a bag made of air-permeable material, which has the effect of a filter and can be replaced when filled. This means that the present solution includes an isolated solution for waste disposal for a single combing machine.
- the collecting line is emptied for a defined period of time and then the main valve is switched to the other total storage.
- This device is intended to prevent the waste material of the combing machines of different material templates from being mixed with one another. Since the combs of the waste material can also be processed into textile goods, a sorting of these combs with respect to the further processing process is necessary. None is said about the type and design of the buffer on the comber indicated here. Only in Fig. 3 it can be seen that the intermediate storage along the combing machine extending shaft consists of a at which m 'rttig a suction pipe discharges that is connected via a valve to the common delivery line.
- the discharge from the drum 1 into the buffer store B can take place in accordance with the exemplary embodiment according to CH-PS 503 126. It can be seen from the cross section of the intermediate store and its longitudinal extent that it has a very large volume. The result of this is that when valve C is opened, a large amount of air has to be moved in order to suck up the waste (combs) collected in store B. On the one hand, this requires a high suction power and presumably leads to an uncontrolled air flow within the buffer.
- the object of the invention to propose a device for removing and collecting waste material which arises during the processing process in a textile machine, which is simple and inexpensive on the one hand and on the other hand enables optimum feeding and trouble-free removal of the waste material with low power requirements.
- the store to which the waste material is fed from an outlet separating device, is tubular and has an inlet opening (16) which opens between its end sections and which is assigned an outlet opening (22) provided with a blocking element (24)
- the outlet opening - viewed in the longitudinal direction of the store - is arranged at a distance from the inlet opening and the store is provided with an air-permeable section (19) on a partial area (L1) of its longitudinal extent.
- At least half of the air-permeable section be outside the spacing area (M) between the inlet and outlet openings.
- Means can be provided in the area of the air-permeable section which prevent air from entering the storage space through this zone when a negative pressure is applied in the storage space.
- These means can preferably consist of an air-impermeable cover sheet attached to the periphery of the storage jacket on one side. On the one hand, this enables the cover sheet to be flexibly evaded when the storage tank is being filled, whereby the transport air that is carried diffuses outward through the air-permeable area and, on the other hand, the system on the storage jacket to cover it and thus to prevent the supply of ambient air (outside air) during the emptying process if there is a negative pressure in the Memory is built.
- the cover sheet can be made of plasticized fabric.
- a plurality of cover sheets are preferably fastened side by side in the manner of a skirt on the circumference of the store. This creates a completely closed partition when an underpressure is created in the accumulator.
- the Longitudinal axis of the memory aligned vertically and the free ends of the cover sheets point downwards.
- the air-permeable section begins at a distance x - seen in the longitudinal direction of the store - following the inlet opening, the distance x being in a range between zero and the measure of 1/3 of the total length of the store .
- the air-permeable section is arranged between the inlet opening and the outlet opening and enables good air discharge during the filling process. That the buffer can be filled optimally.
- the area of the air-permeable section can be between 10 and 60% of the outer surface of the store. Design variants are also possible, the air-permeable surface not necessarily having to be formed in one piece.
- the length of the air-permeable section be less than 60% of the total length of the storage device.
- the air-permeable section is preferably formed from a filter cloth.
- the accumulator in the area of the outlet opening be provided with a conical section which tapers in the direction of the outlet end and forms a connection for a suction pipe.
- the cross section of the memory is preferably circular.
- the diameter ratio between the diameter of the reservoir and the suction pipe can be between 3: 1 and 1: 1. It must be selected so that the memory can be emptied without any problems.
- the memory in the area of the outlet opening be provided with at least one air-permeable zone which is arranged at a distance from the inlet opening, which is arranged at a distance from the inlet opening that is greater than 2/3 of the total length of the memory.
- means can be provided in the region of the outlet opening which prevent air from entering the storage space through this zone when a negative pressure is applied in the storage space.
- the air-permeable section is preferably formed from a filter cloth.
- the inlet opening opens into the periphery of the memory jacket.
- the inlet opening opens into the memory in the axial direction of the memory.
- a particularly compact and space-saving disposal device is achieved if the outlet separating device connected upstream of the storage device is tubular, its longitudinal axis being oriented approximately parallel to the longitudinal axis of the storage device. It is advantageous to align the longitudinal axis of the store or the outlet separating device approximately vertically on the textile machine.
- the proposed devices make it possible to carry out a claimed method, the separated waste material being fed to an intermediate store and then being transferred in stages to a common collection point. Further advantages and features are shown and described using an exemplary embodiment described below.
- FIG. 1 shows a schematic side view of a combing machine with an outlet separating device and a store designed in accordance with the invention
- FIG. 2 is an enlarged view of the memory of FIG. 1,
- Fig. 3 is an enlarged view of the attachment of the cover sheet according to Fig. 2 view X
- FIG. 4 shows an enlarged illustration of a further exemplary embodiment of a memory according to FIG. 1
- FIG. 5 shows an enlarged illustration of a bypass opening according to FIG. 4
- FIG. 6 shows a schematic illustration of a known disposal system with a central suction
- FIG. 7 shows a diagram of the delivery rate air / time unit according to FIG. 6
- FIG. 8 shows a diagram of the diameter profile of the disposal line with reference to the number of combing machines according to FIG. 6,
- FIG. 9 shows a schematic illustration of a disposal system with the intermediate stores according to the invention.
- FIG. 10 shows a diagram of the delivery rate of the air unit of time in relation to the intermittent emptying of the stores according to FIG. 9
- FIG. 11 is a diagram of the diameter profile within the disposal system according to FIG. 9.
- a combing machine K1 is shown in FIG. 1, which is provided with eight combing heads 2. For each combing head 2, a cotton roll 3 is placed, which is for the Combing process unrolled and fed to a pincer not shown for combing. Such a pair of pliers and the means for combing out the cotton wool or for pulling off the combed cotton wool end is shown and described in EP-A1-564408. Therefore, it is not discussed in more detail here.
- the components separated downward during the combing process reach a collecting pipe 6 via schematically illustrated suction shafts 5.
- the separated material is transferred into a conical filter part 10 of a waste separating device 11 by a blower 8, which drives the motor 9.
- the filter part 10 is designed as an air-permeable knitted fabric, whereby the waste material (noils) is separated from the largest part of the transport air (90%). This separated transport air (90%) can be released into the ambient air of the spinning mill via an outlet part 12.
- the outlet part 12 is additionally provided with an air filter in order to retain the dust parts which have penetrated through the filter 10.
- this outlet part 12 it is also possible to connect this outlet part 12 to a central filter system, in which the residual dust contained in the air mixture is separated before this air is returned to the environment.
- the conical filter part 10 is provided at its tapered end with an outlet pipe 14 which supplies the waste material to a tubular intermediate storage 15 with approximately 10% of the remaining transport air.
- the filter part 10 Due to the vertical arrangement of the filter part 10 in connection with a flexible filter cloth, the filter part is essentially self-cleaning.
- the inlet opening 16 of the outlet pipe 14 opens approximately in the middle of the intermediate store 15 in its peripheral jacket 17. This can also be seen in particular in FIG. 2, the intermediate store being shown enlarged.
- the intermediate store 15 has a air-permeable screen jacket 19 which extends downward approximately at the height of the inlet opening.
- the sieve jacket 19 can be formed from an air-permeable filter cloth.
- the length L1 of the screen jacket 19 extends over less than the total length L of the buffer store 15.
- longitudinally aligned support rods 20 can be attached for fastening the filter cloth.
- the sieve surface of the sieve jacket 19 not consisting of a closed sieve surface, but of a plurality of individual sieve surfaces which are arranged accordingly on the circumference of the reservoir.
- a pipe 23 is attached to the outlet opening 22 for the discontinuous discharge of the waste material stored in the intermediate store 15.
- a pivotable flap 24 is fastened in the tube 23 and can be moved into the “open” or “closed” position via an adjusting element 25. In the illustration shown, the flap 24 is in the “closed” position, that is to say the removal from the intermediate store 15 is blocked.
- the adjusting element 25 can consist, for example, of a pneumatically operated cylinder or an electric motor.
- the outlet opening 22 is at the tapered end of a conical part 27 which adjoins the cylindrical part 28 of the intermediate storage 15.
- bypass openings 30 distributed around the circumference can be provided.
- the bypass openings are arranged before the transition into the conical part 27. It can be one or more bypass openings.
- the individual bypass opening 30 is with an air-permeable filter 31 (for example a filter cloth), which allows the passage of air, but not the passage of parts of the waste material A, on the outer jacket 17 of the intermediate store 15, a flexible cover 32 is attached in the area of the bypass openings 30, which can be pivoted at least on one side is attached and covers the bypass opening when fully seated on the outer jacket 17 (as shown). In this position it is prevented that ambient air can be sucked in through the bypass openings 30 via the pipe 23 during the suction process.
- the position of the flexible cover shown in dashed lines occurs when the intermediate store 15 is filled via the outlet pipe 14 when the flap 24 is closed.
- the conical jacket 27 leads to an increase in the transport speed of the transport air during the suction process up to the outlet opening 22.
- the pipe 23 opens into a collecting pipe 35, into which other disposal pipes from other combing machines or textile machines also open.
- a blower 36 is integrated in the collecting line 35 and feeds the outgoing material to a fiber comparator 37.
- the fiber comparator 37 a separation between the transport air and the carried waste is carried out again.
- the waste material essentially consists of short fibers or noils, which are released in compressed form from the fiber separator 27 downward into a suitable container 38. The fiber material collected in this way can be packed for the purpose of further transport to subsequent processing stages for this fiber material.
- this fiber material (noils) is fed to a suitable processing process directly and without packaging in the same spinning plant.
- the individual buffers are not emptied simultaneously by several combing machines but in a predetermined sequence.
- the control of this intermittent emptying process is controlled by a control unit 40 which, on the one hand, is connected to the control of the respective combing machine via line 43 (43 ', 43 ", 43'").
- the control unit 40 is connected to the fiber comparator 37 via the line 44 and to the blower 36 via the line 45.
- the respective adjustment elements 25 for the flaps 24 are controlled via the line 47 (47 ', 47 ", 47'").
- the diameter B of the cylindrical part 28 is selected so that it does not exceed twice the diameter D of the suction pipe 23.
- a diameter ratio B / D is also possible that is greater than 2: 1 (eg 3: 1). In particular, this is to prevent blockages in the region of the cone part 27.
- the longitudinal extent L1 of the screen jacket 19 accounts for less than 60% of the total length L of the intermediate store.
- the Blower 8 conveys the waste material delivered through the collecting tube 6 into the conical filter part 10 of the waste separating device 11.
- the waste material separated from the majority of the transport air passes under the action of approximately 10% residual transport air through the inlet opening 16 of a vertically arranged parallel to the waste separating device 11 Intermediate store 15. Due to the continuous tracking of further waste material, the material located in the intermediate store is compressed and the transport air enclosed therein is released and removed to the outside through the openings of the screen jacket 19.
- the feeding of waste material by means of the transport air creates an overpressure within the accumulator, whereby the free ends of the cover sheets are pressed outwards and thus allow the unhindered escape of the transported air.
- the residual space R within the buffer is continuously reduced. A pressure increase in the air volume in the residual space R can be avoided by allowing the air therein to escape through the bypass openings arranged. This makes it possible to carry out an almost complete filling of the buffer store 15 before the emptying is carried out.
- the emptying can be triggered on the one hand by a preselected time cycle, or by responding to a filling level sensor, which can be arranged at a corresponding height on the intermediate store. In the latter case, it must also be taken into account that the emptying interval must be coordinated with one another from several combing machines. This means that based on the design of the pipe system or the blower, either only one or only a limited number of combing machines can be disposed of simultaneously from the contents of the intermediate store. This means that if a level sensor is attached, there should still be enough free space in the buffer after this sensor has responded in order to enable compliance with a predefined emptying concept.
- the emptying process itself is triggered by the control unit 40 in accordance with the emptying sequence.
- the fan 36 which is also connected to the control unit 40 for control purposes via the connection 45, is generally in operation continuously. Due to the negative pressure now arising in the tube 23, the waste material A located in the intermediate store 15 is fed to the collecting line 35 and is delivered to a fiber comparator 37. This in turn delivers the compressed fiber material downward to a suitable container 38. As soon as a vacuum is created in the space R after the flap 24 has been opened, the flexible covers 32 and the cover sheets are pressed against the peripheral jacket 17 of the cylinder part 28 and thus prevent the entry of external air into this area.
- FIGS. 1 and 2 show a further exemplary embodiment of a buffer store 15.1, which can be used instead of the buffer store 15 shown in FIGS. 1 and 2.
- the same reference numerals have been used for the same components of both memory designs (15, 15.1).
- the inlet opening 16 of the outlet pipe 14 is arranged in the lower part of the reservoir 15.1 in its peripheral jacket 17.
- the intermediate reservoir 15.1 is provided with an air-permeable sieve jacket 19.
- the screen jacket which can be formed from an air-permeable filter cloth, extends over less than half the total length L of the intermediate store 15.1 with the length L1.
- support rods 20 aligned in the longitudinal direction can also be attached for fastening the filter cloth.
- FIG. 5 shows an enlarged illustration of the bypass opening 30, which has already been described in the exemplary embodiment of the intermediate store 15 according to FIG. 2.
- the functional sequences during the filling process of the buffer store 15.1 correspond to the sequences which have already been described in the exemplary embodiment according to FIG. 2.
- no covering of the screen jacket 19 is provided, since this lies above the inlet opening and the problem of supplying false air during the emptying process is not as problematic as with the intermediate store 15.
- the advantages of the intermediate store 15 compared to the intermediate store 15.1 lies in the fact that the supply of waste material does not have to be delivered against the weight of the entire content of the mass in the intermediate store.
- FIGS. 6 to 11 represent the known design of a disposal system
- FIGS. 9 to 11 are one Disposal location shows in which the buffer store claimed according to the invention is integrated.
- FIG. 6 shows a row of combing machines K1 to K4 lying next to one another, from each of which the combs which are produced and separated during the combing process and other impurities are delivered to a disposal system via a line 50. The delivery takes place continuously.
- the material delivered by the combing machine K1 is transferred into the tube E1 with the diameter D1.
- This material is transferred with the application of a suction air flow through the blower 51 to a pipeline E2, into which the waste material of the combing machine K2 is introduced via a further pipe 50. Due to the now increased discharge quantity, the diameter D2 of the tube E2 is larger than the diameter D1 of the tube E1.
- the waste material now in tube E2 is transferred to a subsequent tube E3 and then to a tube E4, from which it is transferred via the blower 51 to a separator 53.
- the waste material of the combing machine K3 or K4 is introduced into the tube E3 or E4.
- the diameter D2 of the tube E3 or D4 of the tube E4 is larger than that of the preceding conveyor tubes E1 or E2.As a result of the continuous removal of the waste material, the diameter D4 of the tube E4 must be chosen to be relatively large in order to ensure the continuous To ensure funding. It can be seen from the diagram in FIG. 7 that a relatively high air delivery rate of 0.8 m ° per second is necessary during disposal in order to ensure that the continuously delivered goods are removed. In Fig. 8, the diameter jump of the tube diameter, which is necessary on the following combing machine, can be seen again schematically.
- FIG. 9 shows a device with the buffer store 15 claimed according to the invention, which is assigned to each of the successive combing machines K1-K4.
- Each of these stores 15, as already described, via a tube 23 after opening the flap 24, the collected waste material (noils) to a subsequent collecting line 35, via which the material is fed to a fiber comparator 37 via a blower 36.
- the flaps 24 are opened by actuation via the control unit 40 at predetermined time intervals.
- the control is designed so that only one flap 24 of the combing machines K1-K4 is switched to flow.
- the diameter Dx of the collecting tube 35 can be chosen to be constant and relatively small on the basis of the constant delivery quantity.
- the disposal cycle staggered over time at the individual combing machines K1-K4 is shown schematically in FIG. It can be seen from this that the required air delivery volume is reduced to 0.5 irr / sec compared to the embodiment according to FIG. 7.
- the hatched area P between the individual disposal cycles shows the time interval in which all flaps 24 are closed. This is e.g. the period in which one of the flaps 24 is closed and another flap 24 is opened.
- Fig. 11 shows schematically the constant diameter Dx with respect to the combing machines K1-K4 arranged one after the other.
- buffers designed according to the invention makes it possible to operate a large number of machines through the disposal system while the suction power remains the same for the disposal of the waste material and the cross-section of the disposal line remains the same.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH100595 | 1995-04-07 | ||
CH100595 | 1995-04-07 | ||
CH1005/95 | 1995-04-07 | ||
CH2028/95 | 1995-07-11 | ||
CH202895 | 1995-07-11 | ||
CH202895 | 1995-07-11 | ||
PCT/CH1996/000126 WO1996031641A1 (en) | 1995-04-07 | 1996-04-09 | Intermediate storage device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0764222A1 true EP0764222A1 (en) | 1997-03-26 |
EP0764222B1 EP0764222B1 (en) | 1999-08-25 |
Family
ID=25686363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96907244A Expired - Lifetime EP0764222B1 (en) | 1995-04-07 | 1996-04-09 | Intermediate storage device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0764222B1 (en) |
JP (1) | JPH10501592A (en) |
CN (1) | CN1077157C (en) |
DE (1) | DE59602862D1 (en) |
WO (1) | WO1996031641A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1284925B1 (en) * | 1995-11-30 | 1998-05-28 | Rieter Ag Maschf | SUCTION DEVICE ON A TEXTILE MACHINE |
DE19714400A1 (en) * | 1997-04-08 | 1998-10-15 | Rieter Ag Maschf | Comber |
EP1516945A3 (en) * | 2003-09-18 | 2006-03-22 | Maschinenfabrik Rieter Ag | Textile machine comprising a dust suction device |
JP2009091671A (en) * | 2007-10-04 | 2009-04-30 | Murata Mach Ltd | Dust collecting and processing system in fiber machine |
CN106087134B (en) * | 2016-08-31 | 2019-06-11 | 浙江高和羊毛科技有限公司 | A kind of short collection system of B grades of essence |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR583150A (en) * | 1924-06-26 | 1925-01-07 | Device intended to ensure the evacuation of air and dust in separating apparatus for textile or other materials | |
US4294597A (en) * | 1980-03-17 | 1981-10-13 | Archer Ronald J | Lint collecting system and apparatus |
JPS61113830A (en) * | 1984-11-05 | 1986-05-31 | Nippon Spindle Mfg Co Ltd | Collector for waste cotton of comber |
DE8911278U1 (en) * | 1989-09-21 | 1989-11-23 | Sohler, Manfred, 7988 Wangen, De | |
CH683191A5 (en) * | 1991-05-22 | 1994-01-31 | Rieter Ag Maschf | Means for collecting lap pieces which are separated in combing machines of cotton tapes. |
JP2859076B2 (en) * | 1993-03-16 | 1999-02-17 | 日本スピンドル製造株式会社 | Device for collecting and removing cotton wool on cards |
-
1996
- 1996-04-09 CN CN96190544A patent/CN1077157C/en not_active Expired - Fee Related
- 1996-04-09 JP JP8529832A patent/JPH10501592A/en active Pending
- 1996-04-09 DE DE59602862T patent/DE59602862D1/en not_active Expired - Fee Related
- 1996-04-09 EP EP96907244A patent/EP0764222B1/en not_active Expired - Lifetime
- 1996-04-09 WO PCT/CH1996/000126 patent/WO1996031641A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9631641A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59602862D1 (en) | 1999-09-30 |
CN1154726A (en) | 1997-07-16 |
CN1077157C (en) | 2002-01-02 |
WO1996031641A1 (en) | 1996-10-10 |
JPH10501592A (en) | 1998-02-10 |
EP0764222B1 (en) | 1999-08-25 |
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