EP3165635A1 - Dispositif d'étirage - Google Patents

Dispositif d'étirage Download PDF

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Publication number
EP3165635A1
EP3165635A1 EP16188023.2A EP16188023A EP3165635A1 EP 3165635 A1 EP3165635 A1 EP 3165635A1 EP 16188023 A EP16188023 A EP 16188023A EP 3165635 A1 EP3165635 A1 EP 3165635A1
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EP
European Patent Office
Prior art keywords
drafting
section
air
designed
air extraction
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
Application number
EP16188023.2A
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German (de)
English (en)
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EP3165635B1 (fr
Inventor
Thomas Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Group SE
Original Assignee
Truetzschler GmbH and Co KG
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Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP3165635A1 publication Critical patent/EP3165635A1/fr
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/66—Suction devices exclusively
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D01H9/008—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving for cans

Definitions

  • the invention relates to a stretching device, that is, a device which is able to collect slivers, for example from several cans, then adjacent to each other to lay out and merge to form a new, single sliver, which preferably has the same width dimensions as each of the retracted , several slivers.
  • Width dimension means in the context of the application, the expansion of the sliver in any direction transverse to the longitudinal extent of the sliver.
  • gate arrangements for retraction of the sliver usually gate arrangements are used, in which cans in one or more rows, along the longitudinal extent, are arranged side by side. In this case, usually up to ten slivers can be fed into a drafting system.
  • both drafting systems are drive-coupled with each other, both drafting systems work, or both stand still. If a disturbance occurs at a drafting system, and this must be temporarily shut down, this automatically affects the second drafting system as well. This means that, although possible, the per se intact drafting system can not work, which unnecessarily reduces the throughput and thus the performance of the entire track device or double track. This is particularly annoying when necessary at only one drafting, interim maintenance or service work.
  • both drafting systems are operated by one and the same drive, both drafting systems are always operated at the same speed. Ie. Both drafting systems must be loaded with the same fiber material from the same number of cans. In addition, these double sections are variable with respect to the respective processing process only insofar as the speed of the driven rollers allows; this is fixed due to the drive coupling. All settings (delays, delivery speed, belt number) for both drafting systems must be identical, in particular the drafting field widths. The drafting systems are therefore always usable only for the same material or for the same passage. In the case of odd-numbered pre-range quantities according to the spinning plan, one more stretch must always be delivered. Overall, there is less flexibility in the use of such double paths.
  • the object of the invention is to counteract these disadvantages.
  • a stretching device which has two drafting devices.
  • Each of these two drafting arrangements has, in a known manner, a draw-in section, a draw-out section and an output section.
  • the intake section is designed, sliver from the outside in Reference to the associated drafting in the direction of the stretch section of the associated drafting system to convey.
  • This stretching section is designed to stretch and level the conveyed sliver according to predetermined specifications.
  • the output section in turn is designed to deliver the stretched and even sliver out of the associated drafting system to the outside. This is done in the usual way by dropping it into a jug.
  • each drafting system has its own drive device. This is designed to drive the sections, ie the draw-in section, the draw section and / or the delivery section of the same, associated drafting system.
  • the drive devices of the drafting systems are configured to operate independently of each other.
  • the stretching device also has a single, central operating unit. This is set up to allow a user to configure and / or control the operation of the two drafting systems at least independently of each other. Since the drive devices of the drafting systems are configured to work independently of each other, the drafting units can work synchronized, but this is done independently. There is no coupling between the two drafting units, which could result in both drafting units being mechanically operated in dependence on each other. This has the advantage that, for example, the failure of a drafting system does not lead to the necessary standstill of the other drafting system. Another advantage is that both drafting systems can still be arranged to save space.
  • the central control unit thus makes the self-sufficient drafting systems or routes a very variable (double) drafting unit. Thus, the demand for efficient space utilization and universal usability are met.
  • the stretching device further comprises an air extraction device.
  • the latter is fluidically coupled to the extension sections in such a way that the air extraction device is able to suck air from the extension sections in the direction of the air extraction device. Ie.
  • foreign substances such as dirt particles and unwanted fibers are removed from the region of the respective stretch section, as usual, by sucking air preferably by negative pressure.
  • the air extraction device is designed to interrupt the air extraction of a respective one of the two stretch sections. The air extraction device is thus able to continue working at standstill of the associated drafting system, for example, due to a fault in relation to the other drafting system and still suck any air from the stationary, associated drafting more.
  • the disturbance can be eliminated at the associated drafting system.
  • a single drive for the air extraction device for example in the form of a fan for two drafting possible, which enormously reduces the space for the otherwise two necessary air extraction devices. This benefits the small footprint of the entire double track.
  • each output section has a can changer. This makes it possible to change the cans of a drafting system, while the other can continue working.
  • the can changers are preferably designed as linear changers and extend parallel to the longitudinal extension of the respectively associated drafting system. This allows a particularly narrow arrangement of all components of the respective drafting system and thus the entire stretching device.
  • Each of the aforementioned stretching devices may also have a connecting portion. This is, seen in the longitudinal extent of the two drafting devices, arranged between the two drafting units. As a result, the two drafting devices are arranged at least in the region of the connecting portion at a distance from each other.
  • the connecting section extends in the longitudinal direction of the two drafting systems. Ie. the connecting section widens the entire arrangement only by its own width. This allows a user to get access to both drafting systems at one and the same location, namely in the area of the connecting section. The drafting systems thus surrounding him protect the user from any dangers such as moving vehicles or the like. Another advantage is that only the width of the connecting portion is required to operate both drafting systems.
  • a second stretching device could, viewed along its longitudinal extent, be arranged immediately adjacent to the stretching device described here.
  • the connecting portion is attached to at least one of the two drafting units.
  • the connecting portion thus forms with the / n attached drafting (s) a structural unit. This facilitates the assembly, arrangement and alignment of all components of the stretching device to each other.
  • each of the aforementioned connecting sections forms a passage between the two drafting devices of the associated stretching device along its longitudinal extent.
  • the drafting units are accessible by means of the connecting portion from both ends of the connecting portion, that is, from the side of the sliver feeder (feeder portion) and the sides of the sliver discharge (discharge portion). This makes the operation more comfortable and universal with regard to the respective conditions on site.
  • the operating unit is preferably arranged at one end of the connecting section. This allows access to other parts of the drafting equipment, such as housing parts that need to be opened or removed, for example, to remove dirt in the form of lost, not extracted fibers from the respective drafting system.
  • Each of the aforementioned connecting sections may be provided with a pedestal section.
  • This has, as the name implies, with respect to a floor on which the stretching device is arranged, a predetermined height.
  • both drafting systems or their drive devices can be supplied with energy from one side of the stretching device.
  • necessary for the air extraction device pipe connection from a drafting system to the other Drafting, where usually the fan is arranged are formed underfloor, so is not in the way.
  • the connecting section is preferably further provided with at least one ramp-like or staircase-like access section. This is formed rising from a free end of the connecting portion along the longitudinal extent of the two drafting devices in the direction of the platform section and attached to the pedestal section or integrally formed therewith. This results in an easy way to get to the pedestal section.
  • the ramp can be provided to roll up a container and fill with the aforementioned dirt can.
  • the operating unit may be attached to one of the two drafting devices in all the above-mentioned drafting devices.
  • a kind of master-slave arrangement can be created.
  • the drafting system with control unit forms the master, which would also work without the other drafting system, the slave.
  • the operating unit or else only one attachment possibility can be attached to each of the said connecting sections, if such a section is present.
  • the interruption of the air extraction is preferably realized by providing an influencing device between at least one of the respective stretched sections and the air extraction device.
  • This is designed, in a first operating state, to block an airflow connection from the at least one stretched section to the air extraction device. Ie. In this state, by way of example, the aforementioned disturbance can be eliminated at just that stretched section.
  • the air extraction device is also designed to release the air flow connection, in a second operating state different from the first operating state, from the at least one stretch section to the air extraction device. Ie. this operating state is provided to eliminate the aforementioned foreign matter from the associated drafting system.
  • the first or second operating state is preferably effected by operating the influencing device. Accordingly, the second or first operating state is effected by means of non-operation of the influencing device. This makes it possible to achieve one of the two operating states without operating the influencing device and thus without external electrical energy, which benefits the energy consumption.
  • bistable influencing device can also be provided. This is designed to cause a change from the first to the second operating state or back again when operating. Ie. the actual operating conditions can be maintained without external power supply. This can be done, for example, by latching, which further reduces the overall energy requirement.
  • each of the aforementioned influencing means may comprise a blocking member.
  • the blocking member In a blocking position corresponding to the first operating state, the blocking member releases an air flow between a region which is fluidically isolated from the stretching section and the air extraction device. Fluidically isolated means that in this position, due to the construction of the double track, it is practically impossible to suck air out of the associated stretch section; There is no air flow generated by the air extraction device in the region of this drafting device.
  • air is drawn in from the outside in relation to the double section.
  • the blocking member in a release position corresponding to the second operating state, the blocking member releases an air flow between the at least one stretching section and the air extraction device.
  • the release position thus corresponds to the normal operating position to transport foreign matter from the associated stretch section.
  • the influencing device comprises a return mechanism. This is designed to urge the blocking member in the direction of blocking or release position. For example, it may be the case that one stretch section has failed and needs to be repaired. If the power supply to influencing device fails, this can push the blocking member, for example, in blocking position, so the drive of the stretch section can be repaired. It therefore increases security.
  • the return mechanism preferably has a biased in the direction of blocking position or release position spring. This is a particularly simple and cost-effective implementation of such a return mechanism '.
  • each of the aforementioned influencing devices has a drive. This urges according to the invention in its operation, the blocking member in the direction of release position or blocking position.
  • FIG. 1 shows a stretching device 1 in plan view, according to a first embodiment of the invention, which is designed as a double-path.
  • the double section 1 comprises two drafting units 2, which are arranged above a respective can changer 3.
  • the drafting units 2 are designed in a conventional manner, so have draw rolls and a corresponding sensor for the sliver thickness.
  • each drafting system 2 has its own, not visible drive.
  • Drive and drafting rollers are preferably arranged under a respective housing cover 14.
  • Each can changer 3 is exemplified as a linear changer. Ie. an empty can 4, seen in the longitudinal extent of the double section 1, according to FIG. 1 So horizontally, laterally inserted from an outside of the respective can changer 3 ago in this. This is in FIG. 1 indicated by the vertical block arrows.
  • a can 5 to be filled is in each case in FIG. 1 already shown under a corresponding non-visible output section of the respective can changer 3.
  • the output section serves to store the processed from the respective drafting 2 sliver material in the associated can 5 and to fill them with it.
  • the respective can 5 is full, it is preferably conveyed automatically out of the respective can changer 3 in the direction of the longitudinal extent of the stretching device 1 to the outside, as indicated by the horizontally extending, pointing to the right block arrows.
  • the drafting devices 2 are separated from one another by way of example by means of an intermediate section 7.
  • the intermediate section 7 extends along the longitudinal extent of the drafting units 2 or the can changer 3 arranged underneath. In order to be able to manually operate both drafting units 2 from the intermediate section 7, these are preferably mirror images of each other, viewed along their longitudinal extent, at least with regard to the components to be handled.
  • the staircase 25 serves to overcome the difference in height of the intermediate section 7 to a floor, not shown here, on which the double-track 1 is placed, so that a person can commit the intermediate section 7.
  • a gate arrangement 8 On the left side of the drafting units 2, a gate arrangement 8 is arranged, which in the example shown has a three-row design. It comprises a frame 9, below which three rows of four cans 11 each extending in the longitudinal extent of the adjoining drafting units 2 are arranged.
  • the frame 9 has, depending on the number of transversely to the longitudinal extent of the drafting 2 extending, here four transverse rows, each consisting of three cans 11, via a corresponding number of pairs of arms 10, of which only two are provided with reference numerals. In each of these pairs, both arms 10 extend away from the frame 9 away from each other. Their free ends are located above a respective outer of the three cans 11 of the associated transverse row.
  • Each arm 10 has in sections above the respective outer can 11 and also in the region of the respectively centrally arranged can 11 via a deflection mechanism, for example in the form of a roller, around the to redirect sliver removed from the associated can 11 in the direction of drafting units 2.
  • a deflection mechanism for example in the form of a roller
  • a sliver guide in the form of two mutually away from each other extending, free-standing arms as a guide portion 12. These are preferably formed parallel to the arms 10.
  • the guide section 12 ensures that the slivers removed from the cans 11 are fed in a suitable manner to the respectively associated drafting device 2.
  • the intermediate section 7 forms a passage between the two drafting arrangements 2. This allows access to the gate arrangement 8 from the end of the drafting arrangements 2 facing away from the gate arrangement 8.
  • an operator terminal 15 is shown, via which both drafting systems 2 can be monitored and / or operated by software.
  • FIG. 2 shows a double-track 1 according to a second embodiment of the invention. It is different from the one in FIG. 1 shown double line 1 substantially through the gate assembly 8 and the position of the control terminal 15, which is now arranged at the other of the two drafting units 2.
  • the gate assembly 8 is formed in two rows and includes in the example shown two frames 9. These have on the facing sides in turn each pairs of arms 10 for twenty cans not shown here, the removal of the sliver from the respectively disposed below jug in the direction of serve associated drafting 2.
  • each frame 9 in turn has a guide section 12 here in the form of two free-standing arms which extend toward one another.
  • the sliver material is passed over the respective arm of the guide portion 12 through a feeder 13 of the respective drafting system 2 in the direction of the respective, the sliver material stretching rollers, which are located under a respective housing cover 14 and therefore are not visible.
  • the can changer 3 here in the region of these cans each side and frontally has an opening 16.
  • the laterally arranged in relation to the longitudinal extent of the drafting 2 and the gate assembly 8 openings 16 are used to set a respective empty jug, whereas the front openings here 16 serve to lead out the filled cans from the respective can changer 3.
  • the operating terminal 15 is attached by way of example to the right-hand drafting system 2. It is designed to make settings on both drafting 2 separately or together. Furthermore, the Condition or the respective processing process of both drafting 2 are displayed on one and the same control terminal 15. For this purpose, the operating terminal 15 is coupled to a respective control that belongs to the respective drafting system 2. For this purpose, the electrical wiring is guided to the drafting devices 2 via a rod 26 extending perpendicularly to which the operating terminal 15 is fastened.
  • the intermediate portion 7 is preferably used.
  • the intermediate portion 7 is formed like a pedestal. Ie. he has at its bottom on a cavity in which advantageously the necessary wiring to the left drafting 2 is laid. At a front end of the pedestal portion 7 has a staircase 25 in the form of an intermediate stage, which allows a person in a convenient way past the drafting 2 over, for example, the gate assembly 8 or even to the control terminal 15 can move.
  • FIG. 3 shows a double-track 1 according to a third embodiment of the invention. This is different from the one in FIG. 2 shown in that the gate assembly 8 is again formed differently.
  • the gate arrangement 8 comprises two racks 9 which are arranged next to one another at a distance from one another and which are arranged to extend in the direction of the longitudinal extent of a respective drafting arrangement 2.
  • the frames 9 are exemplary analogous to the gate array 8 according to FIG. 1 educated. Ie.
  • Each frame 9 has at its side facing the respective other frame 9 and facing away from freestanding arms 10, which serve the discharge of the sliver material of the respectively arranged underneath, not shown pot.
  • both frames 9 thus each likewise have a guide section 12 in the form of two free-standing arms extending from one another.
  • FIG. 4 1 shows a double section 1 according to a fourth embodiment of the invention and in three views, once in perspective (FIG. FIG. 4a ) and twice as modified plan views ( FIG. 4b and FIG. 4c ).
  • the frame 9 of the gate assembly 8 is basically constructed as the right and left frame 9, respectively FIG. 3 , Only eight cans 11 can be arranged here in each longitudinal row by way of example. However, the two lateral arms of the guide section 12 open, contrary to the third embodiment of the invention, each in its own drafting system 2 of the double section. 1
  • Each drafting system 2 has stretch rollers in a known manner. These inclusive associated drive are each exemplarily arranged under an associated cover 27 with housing cover 14.
  • the can changer 3 is preferably designed so that its non-visible turntable over which the stretched and even sliver is filled into the respective can 5, can change its position from one to the other can position.
  • the left front jug is full (reference numeral 6) and the right front jug (reference numeral 4) is empty but is not currently being filled.
  • the operator terminal 15 is on in FIG. 4a arranged behind the two drafting units 2 or formed.
  • FIG. 4b differs from the representation in FIG. 4a in that here additionally sliver material 17 is shown.
  • each feeder 13 is arranged to bundle the respectively fed sliver material and the under supply corresponding to the housing cover 14 stretching rollers.
  • the individual fiber slivers of the respective longitudinal row forming the sliver material 17 and aligned therefrom by eight cans 11 are aligned parallel to one another via the arms 10 and are fed to the respectively associated free-standing arm of the guide section 12 in this constellation.
  • one of the two indentations 13, or even both can be set up to detect the fiber sliver thickness and thus to effect an activation of the drafting units 2 in order to be able to produce the sliver even more uniformly and in the desired sliver thickness.
  • Figure 4c also shows a plan view of the double section 1, without drafting 2 in the can changer 3. D. h. the interior of the can changer 3 is visible.
  • This view serves to illustrate the arrangement of the cans 4, 5, 6 with respect to the respective can changer 3.
  • FIG. 5 shows a double section 1 according to a fifth embodiment of the invention in plan view and also with disclosed can changers. 3
  • the gate assembly 8 is similar to that in FIG. 1 , Only the respective drafting 2 associated 11 ⁇ 2 longitudinal rows of cans 11 are arranged transversely to the longitudinal extent of the drafting 2 slightly offset from each other at a distance. Thus, the sliver, not shown here can be supplied from the cans 11 via the corresponding part of the guide portion 12 with respect to the associated drafting system 2 preferably symmetrically without having to provide an extra deflection.
  • FIG. 6 shows a double section 1 according to a sixth embodiment of the invention in plan view.
  • the gate arrangement 8 is identical to that in FIG FIG. 1 shown.
  • FIG. 7 shows a double-section 1 according to a seventh embodiment of the invention, in two views. These two views are similar to the first two views of the fourth embodiment.
  • the pedestals 18 extend substantially over approximately half the length of the respective drafting system 2 or of the can changer 3 arranged underneath, in the region of a respective recess 24 formed on the associated drafting device.
  • the pedestals 18 open at their end facing the gate arrangement 8 each in a staircase-like staircase 25th
  • each can changer 3 is designed so that in a direction transverse to the longitudinal extent of the drafting 2 two pitchers have space next to each other.
  • empty cans 4 viewed in the longitudinal direction of the drafting devices 2, are arranged centrally with respect to the arrangement of the two can changers 3.
  • these can for example automatically in the longitudinal direction of the drafting 2 away from the gate assembly 8 are preferably automatically ejected.
  • the next, between those cans 5, 6 arranged empty can 4 is then preferably automatically moved to the position at which the ejected, full can 6 was arranged.
  • the next empty can 4, according to Figure 7a is arranged outside the drafting units 2, moved to the position in which the left can 4 is located here.
  • FIG. 7b shows a plan view of this embodiment.
  • FIG. 8 shows a double section 1 according to an eighth embodiment of the invention in plan view. This embodiment is similar to the fourth embodiment of the invention.
  • FIG. 9 shows a double link 1 according to a ninth embodiment of the invention.
  • This embodiment is a combination of the gate assembly 8 of FIG. 5 with the arrangement drafting 2 and can changer 3 of FIG. 8 ,
  • FIG. 10 shows a double-track 1 according to a tenth embodiment of the invention.
  • This embodiment is a combination of the gate assembly 8 of FIG. 6 with the arrangement drafting 2 and can changer 3 of FIG. 8
  • FIG. 11 shows a double link 1 according to an eleventh embodiment of the invention, in two views. These two views are similar to those of the fourth embodiment.
  • the gate arrangement 8 corresponds to the example in FIG FIG. 3 shown third embodiment of the invention.
  • the pulp changers 3 assigned to the drafting units 2 each have two guide tracks 22, which are arranged running parallel to one another by way of example. Both guideways 22 open at one end into the effective range of the respective can changer 3 and the other end in a respective ramp 21, which creates a height compensation of the respective guideways 22 with the floor not shown.
  • only three empty cans 4 are arranged in the respective feed guide track 22. These are when moving into the effective range of the respective can changer 3, d. H. below the associated housing cover 14, due to a run-on slope 20 which is formed on the respective pedestal 18, moves in the direction of filling position.
  • both the intermediate section 7 and lateral pedestals 18 are preferably formed in each case with two or one rising 25. This allows the person concerned to choose how to handle the work on the double-track 1. Also, several people can work so conveniently on both drafting 2 so comfortable.
  • FIG. 12 shows by way of example the in FIG. 1 upper drafting system 2 in greater detail and in different views.
  • FIG. 12a shows this drafting system 2 from one of the gate assembly 8, not shown here ago, at which the feeder 13 is located. Further, the housing cover 14 is shown, under which the suggestively stretched section 29 is located. The housing cover 14 is at one Frame 30 pivotally mounted.
  • the frame 30 here has six non-designated feet, which preferably carry the entire drafting system 2.
  • a box or box-like extension 31 At the gate assembly 8 side facing the drafting 2 a box or box-like extension 31.
  • This box 31 comprises four circumferentially formed outer walls, one of which is provided with the reference numeral 33.
  • the front wall, here in the direction of the gate arrangement 8 facing end wall is not shown to provide a view into the interior of the box 31.
  • Inside is a vertically extending, transverse to the longitudinal extent of the drafting 2 extending intermediate wall 32 is used. This separates the interior of the box 31 in a front, in the direction of gate assembly 8 facing subspace, which serves for example the inclusion of control components, and a rear, not visible here part
  • FIG. 12b shows the drafting system 2 in the cutout and without the left side wall of the box 31.
  • FIG. 12c shows a similar section, only this time without intermediate wall 32.
  • D. h. Here is the structure of the said cavity recognizable.
  • the Luftleitrohr 39 begins at the upper left corner of the cavity and initially runs vertically downwards towards the floor and then bends diagonally towards the wall 33 from.
  • an air guide 36 closes here in the form of a direction not shown intermediate wall 32 of open tube. It initially extends the Heilleitrohr 39 and then preferably kinks on an underside of the box 31 horizontally in the direction of the right wall 33 from.
  • the air guide 36 opens at its the right wall 33 facing the end in the wall 33, which has an opening 34 at this point.
  • air guide 36 another, example also also in the direction of the intermediate wall 32 open air guide 35 is arranged. It connects to the same, right wall 33 formed, here three openings 34 fluidly with a hint of recognizable opening in the air guide 35 and an aligned, not visible here opening 63 in the retraction 13 facing the rear wall 61 of the box 31st
  • the intermediate wall 32 closes both air guide parts 35, 36 at their open sides in terms of flow.
  • the box 31 through two air lines "laid".
  • FIG. 12 an air guide tube 38 is shown, which connects the stretch section 29 via a switching section 40, which will be explained in more detail later, with the upper end of the air guide tube 39 facing away from the air guide part 36.
  • FIG. 13 shows only the air flow technology relevant parts of the drafting system 2. These parts form, as explained in more detail below, an air extraction mechanism.
  • FIG. 13a shows the Lucasleitmaschine 35 and 36.
  • the intake 13 not shown side facing the Luftleitteils 35 is the aforementioned, not designated opening formed.
  • a fan 43 is arranged in or on this .
  • a tube 42 connects to the outside of the air guide part 35 pointing in the direction of intake 13, which pipe flows into the drafting section 29, likewise not shown here.
  • the fan 43 is operated so that it presses air from the air guide 35 in the direction of tube 42. Ie. Via the above-mentioned three openings 34 air is sucked in from outside with respect to the box 31 via the arrangement intermediate wall 32 - air guide part 35 and pressed into the stretch section 29 via the tube 42.
  • the Heilleitrohr 38 connects, which is formed in several parts in the example shown. This kinks, starting from the stretch section 29, in the direction of not shown box 31, in the direction of the aforementioned left upper corner of the facing wall 61 of the box 31.
  • the tube 38 opens at its end facing the box 31 in the switching section 40th This in turn, ends at the other end into the upper end of the Heilleitrohrs 39th D. h.
  • FIG. 13b shows the arrangement of FIG. 13a from the side of the unillustrated stretch section 29 forth in the direction also not shown box 31. It can be seen that there is an additional air extraction section.
  • This comprises two inlet funnels 41, each at their lower sides open into a tube 45.
  • the two hoses 45 open at the other end into the air duct 38.
  • the inlet funnels 41 are part of the otherwise not shown 13.
  • the air sucked through the inlet funnel 41 serves the purpose to dissipate occurring in the feeder 13 foreign matter, so that they do not stretch the section 29 reach first. Thus, a kind of pre-cleaning takes place before the sliver material 17 is stretched and evened out.
  • the inlet funnels 41 are not connected to the fan 43, which is not visible due to the tube 42, but are arranged parallel thereto.
  • the air extraction system would have to be switched off. But since both drafting 2 of the double section 1 are fluidly connected to each other, switching off the associated fan 43 would not bring much. The negative pressure in the air duct 37 would continue to lead to an air flow through the stretched section 29 to be stopped, so that maintenance or the like is scarcely possible or even impossible.
  • the switching section 40 is provided.
  • FIG. 13c shows the arrangement tube 38, switching section 40 and air duct 39 from a floor facing, according to FIG. 13a Bottom of the switching section 40 ago.
  • the switching section 40 is open on its underside facing the bottom and preferably has a grid 44.
  • FIG. 14 shows the switching section 40 of FIG. 13 in greater detail and in different views, and twice from the connection side to the pipe 38, not shown here ( Figure 14a and Figure 14b ) and once from the likewise not shown feeder 13 side facing ( FIG. 14c ).
  • the switching section 40 is provided with a frame 46.
  • the frame 46 is designed so that it is open only in the direction of pipe 38, air guide 39 and grid 44.
  • FIG. 14b shows the switching section 40 in a similar perspective. Only here is the front wall of the frame 46 missing.
  • the flap 47 is at its the in Figure 14a and Figure 14b forward facing, not shown, the tube 38 facing open side by means of a shaft 49 pivotally mounted.
  • the shaft 49 penetrates fluidly sealed said, in FIG. 14b not shown wall and is connected at its end facing away from the flap 47 with a lever 51 moslungswirkverbunden.
  • a rotation of the shaft 49 causes a pivoting of the lever 51 and vice versa.
  • This is achieved by the said end of the shaft 49 is non-positively and / or positively engaged with the lever 51.
  • this is achieved by the end of the shaft 49 has a, seen in the longitudinal direction of the shaft 49, non-circular outer contour.
  • the lever 51 has at its end facing the shaft 49 an inner contour that is preferably complementary to the outer contour of the shaft. Additionally or alternatively, the lever 51 is fixed in rotation by means of a screwed onto the shaft 49 nut 50 on the shaft 49.
  • the remote from the shaft 49 end of the lever 51 is pivotally coupled to one end of a pneumatic cylinder 52.
  • the attachment 54 comprises in the example shown a fastening seat which is attached by means of screws 55 on the upper part of the frame 46 or also formed.
  • the cylinder 52 has two compressed-air connections 53. If compressed air is introduced into one of these connections, a piston displaceably mounted in the cylinder is moved accordingly. In the example shown, the piston is pivotally mounted with its free end to the lever 51. If the piston is retracted into the other cylinder 52, the shaft 49 is rotated accordingly clockwise. This causes a pivoting of the flap 47 with its side facing away from the shaft 49 away from the grid 44. Thus, the grid output of the switching section 40 is fluidly connected to the air guide 39.
  • the cylinder 52 is coupled to a control, not shown, which is able via the compressed-air connections 53 to pivot the flap 47 by means of the cylinder 52 in the respective direction, ie toward or away from the grate exit.
  • the controller is configured to cause the flap 47 to pivot in the presence of a particular operating condition or event.
  • a sensor may be provided as an example in the form of a pressure switch on the housing cover 14.
  • the switch is actuated, for example, by depressing its switching element, such as a button, the a signal to the controller is that the drafting system 2 of the associated route is functioning normally. In that case, the cylinder 52 is not actuated.
  • the switching section 40 has a sensor by means of which the control can determine the position of the flap 47, it is additionally possible to actuate the cylinder 52, should the flap 47 not be in a release position in which it grids the 44th virtually covers and thus blocks and the air passage to the associated drafting 2 or between the air duct 38 and air duct 39 releases.
  • the operation of the switching element of the switch located on the cover 14 is canceled, which is a signal for the control that the drafting 2 of the associated route is currently not operated and thus the air extraction is off.
  • the cylinder 52 is actuated to pivot the flap 47 into a blocking position in which it practically blocks the air passage to the associated drafting device 2 and releases the air passage between the air guiding tube 39 and the grid 44.
  • the switching section 40 has the aforementioned sensor, it is possible to actuate the cylinder 52 only if the flap 47 is not in the respectively to be achieved, released or locked position.
  • the flap 47 on the side facing away from the shaft 49 on a contact portion 48 This is plate-like and bends away from the other flap in the direction of grid 44. If the flap 47 is pivoted, this takes place until the contact section 48 abuts against the inside of the upper frame part, which for example runs parallel to the grid 44. Since the flap 47 also at the in Figure 14a right and left side of the frame 46, it closes in this Condition the flow passage from the tube 40 to the air guide 39. As a result, no more air can be removed from the associated stretch section 29, whereby the aforementioned maintenance can be performed. So it is not necessary to switch off the aforementioned extraction device, and the other drafting system 2 can continue to work.
  • FIG. 15 shows that too FIG. 12 analog box 31 of the other, in FIG. 1 lower drafting 2 of the double section 1 in different views
  • the box 31 of the second drafting system 2, not shown here, is substantially, seen in the longitudinal direction of the drafting system 2, a mirror image of the in FIG. 12 illustrated box 31 is formed. Ie. the wall 33 is arranged here on the left.
  • the box 31 includes an air guide 56. This is preferably formed analogous to the air guide 35. But the opening for a fan is missing here. This is due to the fact that the air guide 56 faces with its open side in the direction of the rear wall 61 and is sealingly attached there.
  • a switching section 40 which has the same function as the switching section 40 of the other drafting system 20.
  • the switching section 40 does not open into an air duct 39 but a frame section 60.
  • the frame section 60 is by means of two frame walls 60a, 60b are formed, which enclose an angle of 90 ° by way of example and are attached to their opposite edges on inner sides of the box 31 fluidly sealing or formed.
  • the frame portion 60 is thus formed open at the switching portion 40 and the side opposite thereto. Its extension in the longitudinal direction of the drafting system 2 is shorter than a corresponding (depth) inner dimension of the box 31 in this direction. Thus, air coming from the associated switching section 40 is sucked into a gap 62 of the box 31 (cf. FIG. 15b ).
  • the wall 33 similarly to the wall 33 of the other box 31 also has a lower opening 34. In this opens from the outside of the box 31 forth here Heilleitrohr 37.
  • This opening 34 opens into a frame portion 59 which formed similar to the frame portion 60 is.
  • the frame portion 59 is also formed by means of two frame walls 59a, 59b, which enclose an angle of 90 ° by way of example and are attached to their opposite edges on inner sides of the box 31 fluidly sealing or formed. Furthermore, both walls 59a, 59b also sealingly disposed on the rear wall 61.
  • the frame portion 59 is thus open only on the rear wall 61 facing away. Its extension in the longitudinal direction of the drafting system 2 is also shorter than the corresponding dimension of the box 31.
  • incoming air is also sucked into the space 62 of the box 31.
  • the gap 62 of the box 31 is at the gate assembly 8, not shown facing, in FIG. 15a front side of the box 31 preferably fluidly sealed by means not shown doors.
  • a filter is preferably used in the form of a mat, which exemplifies the entire cross section of the gap 62, seen along the longitudinal extension of the drafting system 2, fills.
  • a triangular wall portion 57 is formed here, which has an opening 58.
  • the wall part 57 preferably extends parallel to the rear wall 61 and abuts the filter at least in the region of the opening 58.
  • FIG. 15b shows the box 31 without circumferential walls, ie without wall 33.
  • the frame portion 60 is provided with an opening 64 through which the frame portion 60 is fluidly connected to the switching section 40.
  • a later explained in more detail fan housing 65 is located behind the wall portion 57.
  • a wall 68 which faces away from the circumferentially formed walls of the box 31 and projects obliquely here, adjoins a wall 68 which extends in the direction of the rear wall 61 and preferably encloses an angle of 90 ° with the wall part 57.
  • FIG. 15c shows the box 31 according to FIG. 15a , only without air guide 56.
  • the openings 34, 63 for the air guide 56 to recognize, as in the box 31 according to FIG. 12 are formed for the air guide 35, only just mirror images of it.
  • FIG. 15d shows the box 31 of the feeder 13 facing, so in relation to the FIG. 15a Rear of the box 31 ago.
  • FIG. 15e shows the box 31 from the same perspective, but without the back wall 61.
  • the rear wall 61 is formed substantially in two parts.
  • the part of the rear wall 61 shown here has an opening in the area of the fan housing 65. This is closed by means of a flap, not shown here, belonging to the rear wall 61.
  • the flap is provided to allow a person access to a gap 66 of the box 31.
  • the intermediate space 66 is enclosed by the left-hand front side wall of the box 31, a bottom wall 69 of the box 31, the wall 68, the wall part 57 and the rear wall 61.
  • the fan housing 65 is formed by way of example screw housing and part of a centrifugal fan. This is the input side connected to the opening 58 in fluid communication and has the output side with an opening 70 in the intermediate space 66.
  • the bottom wall 69 has an opening 67 which is arranged so that from the radial fan, ie via the opening 70, exiting air from the box 31 can be discharged to the outside.
  • the air guide parts 35, 56 and the boxes 31 may be composed of similar parts, although the arrangement is realized in mirror image to each other, this keeps costs low and allows the use of standardized parts.
  • the invention is not limited to the prescribed embodiments.
  • any type of gate arrangement can be used, provided that it is set up to deliver sliver material to two drafting units 2.
  • each can changer 3 is combined with each of the prescribed drafting 2.
  • the pedestals 18 and the intermediate section 7 are predictable in each embodiment or may be omitted. If the intermediate section 7 is missing, the respective operating terminal 15 is arranged or formed on one of the two sides of the drafting systems 2 facing away from each other.
  • the coupling of the operating terminal 15 with the drafting devices 2 or one or more of these controlling controller (s) need not be wired. It can also be wireless, for example by means of Bluetooth.
  • the described can changer 3 can also be arranged separately.
  • the risers 25 may be omitted in whole or in part or in any other way than the above-described staircase form.
  • the intermediate section 7 it is advisable to provide a ramp-like staircase at its end facing away from the gate arrangement 8.
  • a dirt container can be rolled up onto the intermediate section 7 for maintenance in order to be able to deposit material not extracted therefrom from the respective stretch section.
  • the intermediate portion 7 may also be plate-like or have a rising shape with respect to the floor.
  • the invention provides a simple and universally applicable solution to realize double sections, which offer the greatest possible flexibility of use with the smallest possible space requirement.
  • the space requirement is reduced, in particular with regard to the width of the entire double-track 1. It can be used for cans of 1000 mm diameter linear can changers, which benefits the benefit. A can magazine is not necessary.
  • a periphery control cabinet, control, suction / filter box, operating terminal / display
  • drafting 2 both drafting 2 used.
  • the unaffected drafting unit 2 can continue to operate in the event of a fault. This also concerns maintenance / service, provided that they are only to be made on a drafting 2.
  • the distance between the two drafting units 2 can be chosen so large that an operation from the middle between the two drafting units 2 out is possible.
  • the settings on both drafting 2 can be made completely self-sufficient.
  • the stretching device 1 according to the invention with different materials or, for example, as a first or second passage easily possible.
  • the drafting system 2 can be used with control terminal 15 as Einkopfvorshare.
  • control terminal 15 as Einkopfvorshare.
  • odd section numbers are feasible.
  • any drive which is able to pivot the flap 47 can be used any drive which is able to pivot the flap 47.
  • One possibility is, for example, a worm drive.
  • the drive of the flap 47 acts only in one direction.
  • a preferably mechanically acting return mechanism is provided.
  • the return mechanism may be formed by means of a leg spring, one end of which is supported on the frame 46, and the other end of which is fixed to the lever 51 or supported on a stopper disposed thereon.
  • the flap 47 sealingly abuts at its edges on the associated inner sides of the frame 46.
  • the flap 47 preferably has a distance to each of these insides. This distance is such that, although air flows through it, but to a negligible extent. Ie. at the section 29 this is not noticeable when the flap 47 is swung open. The clearance causes foreign matter in the air to not nest in the area of contact between the flap 47 and the frame 46, thereby locking the flap 47 to the frame 46, so that they may become lodged no longer be movable. The distance thus serves the operational safety of the switching section 40.
  • pivotable flap 47 may also be provided a displaceable part.
  • This could for example have two free legs, which are arranged at right angles to each other.
  • a leg extends parallel to the orientation of the flap 47 in FIG. 14 ,
  • the other leg extends from this leg in the direction of grid 44.
  • a rack and pinion drive could be provided.
  • a motor shaft rotates and meshes with a pay bar, which is attached or formed, for example, by a rubber lip seal on the other leg.
  • a return mechanism a compression or tension spring.
  • a bistable design can be provided.
  • this can be designed so that it is moved past a pivoting, resilient part facing it during pivoting. Approximately in the middle of the movement of the part is maximally biased and urges the further movement of the lever due to its relaxation in the direction of each end position.
  • the box 31 with filter mat can also be provided that the corresponding box 31 is provided with air guide parts. These are designed so that the air coming from the air duct 37 and from the directly connected to this box 31 switching section 40 coming air is discharged to the outside with respect to the box 31 to an external air extraction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP16188023.2A 2015-11-03 2016-09-09 Dispositif d'étirage Active EP3165635B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015118763.9A DE102015118763A1 (de) 2015-11-03 2015-11-03 Streckvorrichtung

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EP3165635A1 true EP3165635A1 (fr) 2017-05-10
EP3165635B1 EP3165635B1 (fr) 2021-06-30

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CN (1) CN106917167B (fr)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3255184A1 (fr) * 2016-05-24 2017-12-13 Trützschler GmbH & Co. KG Installation d'étirage pour bandes de fibres
WO2020074240A1 (fr) * 2018-10-12 2020-04-16 TRüTZSCHLER GMBH & CO. KG Base pour une machine textile
DE102008000920C5 (de) 2008-04-01 2022-03-17 Rieter Ingolstadt Gmbh Doppelkopfstrecke

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022106192A1 (de) 2022-03-16 2023-09-21 Trützschler Group SE Spinnereianlage mit einer Filtervorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295170A (en) * 1963-12-06 1967-01-03 Ideal Ind Drive for textile machines having coilers
EP0799916A2 (fr) * 1996-04-02 1997-10-08 Maschinenfabrik Rieter Ag Machine de peignage avec un banc d'étirage contrÔlé
DE102008000920A1 (de) * 2008-04-01 2009-10-08 Rieter Ingolstadt Gmbh Doppelkopfstrecke

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Publication number Priority date Publication date Assignee Title
US2719333A (en) 1952-08-11 1955-10-04 Iii Andrew E Buchanan Scavenger mechanism for pin drafting machines
DE1130336B (de) 1958-12-09 1962-05-24 Ferdinand Reiterer Vorrichtung zum Reinigen der Walzen von Streckwerken an Spinnereimaschinen
DE19807894B4 (de) * 1998-02-25 2006-08-31 Maschinenfabrik Rieter Ag Spinnmaschine mit Verdichtungseinrichtung
DE10055026B4 (de) 2000-11-07 2017-08-17 Trützschler GmbH & Co Kommanditgesellschaft Spinnereivorbereitungsanlage mit einer übergeordneten Bedien- und Anzeigeeinrichtung
JP2012127007A (ja) 2010-12-13 2012-07-05 Toyota Industries Corp 前紡工程のドラフト装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295170A (en) * 1963-12-06 1967-01-03 Ideal Ind Drive for textile machines having coilers
EP0799916A2 (fr) * 1996-04-02 1997-10-08 Maschinenfabrik Rieter Ag Machine de peignage avec un banc d'étirage contrÔlé
DE102008000920A1 (de) * 2008-04-01 2009-10-08 Rieter Ingolstadt Gmbh Doppelkopfstrecke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008000920C5 (de) 2008-04-01 2022-03-17 Rieter Ingolstadt Gmbh Doppelkopfstrecke
EP3255184A1 (fr) * 2016-05-24 2017-12-13 Trützschler GmbH & Co. KG Installation d'étirage pour bandes de fibres
WO2020074240A1 (fr) * 2018-10-12 2020-04-16 TRüTZSCHLER GMBH & CO. KG Base pour une machine textile

Also Published As

Publication number Publication date
EP3165635B1 (fr) 2021-06-30
CN106917167A (zh) 2017-07-04
CN106917167B (zh) 2019-12-20
DE102015118763A1 (de) 2017-05-04

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