EP2189558B1 - Upper cylinder carrying and load arm for a stretching unit - Google Patents
Upper cylinder carrying and load arm for a stretching unit Download PDFInfo
- Publication number
- EP2189558B1 EP2189558B1 EP20090011642 EP09011642A EP2189558B1 EP 2189558 B1 EP2189558 B1 EP 2189558B1 EP 20090011642 EP20090011642 EP 20090011642 EP 09011642 A EP09011642 A EP 09011642A EP 2189558 B1 EP2189558 B1 EP 2189558B1
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- EP
- European Patent Office
- Prior art keywords
- carrier
- slide
- top roller
- arm according
- elevations
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- 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.)
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- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims 13
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
-
- 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
- D01H5/56—Supports for drafting elements
- D01H5/565—Top roller arms
-
- 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
- D01H5/56—Supports for drafting elements
Definitions
- the present invention relates to a top roller carrying and loading arm for a drafting of a spinning machine, with a downwardly open U-shaped support, in which at least one slider is arranged, which a loading element and a holder for receiving a top roller and an adjusting device by means of the slider relative to the carrier in the longitudinal direction displaceable and can be fixed to the upper side of the carrier comprises.
- a top roller support and loading arm is known, which is composed of two identical plan rails, which are interconnected by end-mounted spacers and held parallel to each other. Between the plan rails, a slider is arranged with a holder for receiving a top roller and a loading element. The slider is slidably guided between the rails in the longitudinal direction for setting different stretching field widths.
- the rotationally fixed fixation of the slide is achieved by a positive connection between the body of the slide and the rails by the mutually parallel flat outer surfaces of the slide and the guide rails are adjacent to each other.
- a disadvantage of this type of rotationally fixed fixation of the slide proves that for the purpose of adjusting the drafting field width by moving the slider in the carrier a certain clearance between the rails and the outer surfaces of the slider must be present, which may vary depending on the manufacturing accuracy ,
- This variable game has a direct influence on the quality the parallel attitude of the slider relative to the carrier and thus the upper roller on the holder relative to the corresponding lower roller in the drafting system. Due to the varying manufacturing inaccuracy, the parallelism is negatively affected.
- Object of the present invention is to ensure a rotationally fixed fixation of the slider in the carrier without component tolerances or the rotationally fixed setting of the slider have an influence on the parallel position of the slider in the carrier.
- a contact surface of the slider has a surface structuring, which is in engagement with a corresponding surface structuring of the inner surface of the top of the carrier to achieve a positive connection.
- a secure parallel guidance of the upper roller is achieved to its corresponding lower roller, which is inexpensive and can be realized with low production costs.
- the leadership of the slider and the holder arranged therein is no longer carried by the play-related, spaced-apart side surfaces of the slider and the support arm respectively of the rails, as is the case in the prior art. Accordingly, the manufacturing tolerances of the slider and the carrier on the side surfaces can be expanded be made, whereby the production of the carrier and the slider is also simplified.
- the surface structuring on the inner surface of the upper side of the carrier can consist of at least one depression into which at least one corresponding surface structuring on the contact surface of the slide engages in the form of an elevation.
- the surface structuring on the inner surface of the upper side of the carrier consist of at least one elevation into which at least one corresponding surface structuring on the contact surface of the slide engages in the form of a depression.
- the positive engagement achieved by the intermeshing of increase and depression allows a simple and secure fixing of the slider relative to the carrier in order to prevent the slider from rotating about its vertical axis during the fixing.
- the surface structuring in the form of depressions or elevations can be realized by impressing in the carrier or in the slider in a cost effective manner with the required manufacturing accuracy.
- the surface structuring on the inner surface of the top of the carrier consists of a plurality of successively arranged recesses which extend at an angle to the longitudinal axis of the carrier, in each case a single, at a corresponding angle to Longitudinal axis of the slider extending, engages executed as an increase on the contact surface of the slider surface structuring.
- the surface structuring on the inner surface of the top of the carrier of a plurality of consecutively arranged elevations extending at an angle to the longitudinal axis of the carrier in which a corresponding surface structuring on the contact surface of the slider engages, as a plurality of corresponding, at a corresponding angle to the longitudinal axis of the slider over the extension of the contact surface in the longitudinal direction of the Slider extending depressions are executed.
- the design of the surface structuring as a plurality of elevations or depressions arranged one behind the other, which extend transversely to the longitudinal axis of the carrier, in each of which a single, extending transversely to the longitudinal axis of the slider extending corresponding recess or increase on the contact surface of the slider, allows the adjustability the slider within a pitch that results from the selected distances of the ridges or depressions to each other.
- the slider can thus be adjusted in discrete steps in the longitudinal direction of the carrier.
- the surface structuring on the inner surface of the upper side of the carrier may consist of a continuous recess extending parallel to the longitudinal axis of the carrier, into the two spaced-apart surface patterns corresponding to the recess and formed as ridges on the abutment surface of the slider extend to the longitudinal axis of the slider, engage.
- the slider is freely displaceable along the recess in the longitudinal direction.
- the elevations or depressions can be arranged one behind the other in alignment with the contact surface of the slide.
- the surface structuring on the abutment surface of the slider can consist of a continuous increase, which engages in a corresponding surface structuring on the inner surface of the upper side of the carrier in the form of a depression.
- the carrier may have on the inner surface of the upper side as a two mutually parallel, continuous recesses formed surface structuring, which extend parallel to the longitudinal axis of the carrier, in the two diagonally opposite each other on the contact surface of the slider arranged, corresponding to the recess as elevations engage trained surface structuring.
- the elevations designed as surface structurings can be arranged on the contact surface of the slide on its periphery.
- the greatest possible spacing of the elevations on the abutment surface of the slide relative to one another enables good guidance in the depression or depressions on the inner surface of the upper side of the carrier, which is achieved by arranging the elevations on the abutment surface of the slide close to the edge.
- the arrangement may preferably be selected such that the elevations, regardless of their arrangement on the contact surface have a maximum distance of about 7 mm to the peripheral edge of the contact surface.
- the width of the surface structuring designed as a depression is greater than the maximum possible difference between the maximum inner width of the carrier and the minimum outer width of the slider. In this way it can be achieved that the elevations on the contact surface of the slider during assembly of the Upper roller carrying and loading arm always come to rest in the recess on the inner surface of the top of the carrier. The effort during assembly is reduced because an alignment of the slider relative to the support is no longer required. The same applies to the embodiments in which the recesses are provided on the contact surface of the slider and the elevations on the inner surface of the top of the carrier.
- the surface structures formed as depressions and elevations may be trapezoidal.
- the surface structures formed as depressions and elevations may be V-shaped.
- the surface structuring formed as depressions and elevations can be designed in the shape of a circle segment.
- FIG. 1 shows a support 1 of a top roller support and loading arm for a drafting of a spinning machine, which is designed as a U-shaped, downwardly open profile part.
- the carrier 1 is equipped with at least one slider 2, which serves to receive and load a top roller.
- the slider 2 is fixedly connected to the carrier 1 during operation of the drafting system.
- the slider 2 is displaceable.
- the displaceability as well as the fixability of the slider 2 on the carrier 1 is achieved by an adjusting device 4, which may for example be a screw to fix the slider 2 in a certain position.
- the slider 2 comprises a holder 3, which serves to receive a top roller, and a loading element 10.
- the top roller is loaded by the loading element 10 with a contact force, which is transmitted from the handlebar 3 to the top roller. Furthermore, the handlebar 3 serves to keep the upper roller as parallel as possible to a corresponding lower roller of the drafting system.
- the slider 2 against rotation, for example, when tightening the located on the upper side of the slider 2 adjusting device 4 about its vertical axis, secured.
- the slide 2 has a contact surface 8, which with the inner surface of the closed top 9 of the carrier. 1 is positively connected. This is done according to the in the Fig.
- a surface structuring in the form of a groove-shaped recess 5 is provided on the inner surface of the upper side 9 of the carrier 1, which extends substantially over the entire length of the carrier 1.
- the contact surface 8 of the slide 2 has a surface structuring in the form of an elevation 6, as in FIG Fig. 4 shown.
- a recess designed as a slot 7 in the upper side 9 of the carrier 1 serves for the displaceability of the slider 2 in the longitudinal direction in order to be able to set stretching field widths.
- Fig. 3 is a sectional view of the carrier 1 along the line III - III according to Fig. 1 shown.
- the illustration shows that by means of the adjusting device 4, the slide 2 on the carrier 1 in a predetermined position can be fixed.
- Fig. 4 shows a detail A according to Fig. 3 , the contact surface 8 of the slider 2 abuts against the inner surface of the upper side 9 of the carrier 1.
- the positive connection results from the engagement of the elevation 6 on the contact surface 8 of the slider 2 in the recess 5 on the inner surface of the carrier first
- Fig. 5 shows the load element 10 and the handlebar 3 comprehensive slider 2 in a side view.
- the contact surface 8 has two elevations 6, which are spaced from each other and arranged in alignment in the longitudinal direction.
- Fig. 6 shows a detail view B according to Fig. 5 .
- This illustration shows the configuration of the two elevations 6 on the contact surface 8 of the slider 2 according to Fig. 5 ,
- Fig. 7 shows a sectional view taken along the line VII - VII according to Fig. 6 , from which the design of the increase 6 can be seen.
- the elevation 6 is formed substantially V-shaped, as well as the corresponding recess 5 in the carrier 1.
- the profile of the recess and elevation, in addition to the substantially V-shaped configuration also rectangular, trapezoidal, circular segment, partially elliptical, hyperbolic or a combination of these, which is partially illustrated by the embodiments described below.
- the positive connection between the carrier 1 and the slide 2 is in the present embodiment according to the Fig. 1 to 7 achieved in that the two elevations 6 engage in the longitudinal direction of the carrier 1 extending recess 5.
- the elevations 6 are mounted on the contact surface 8 of the slider 2 with the greatest possible distance from each other in order to achieve a good guide.
- the arrangement of the elevations 6 on the contact surface 8 is preferably selected such that the elevations 6 regardless of their arrangement on the contact surface 8, that is, whether they are arranged parallel to the longitudinal axis of the slider 2 or at an angle to this inclined on the contact surface 8 are, have a maximum distance of about 7 mm to the peripheral edge of the contact surface 8.
- the elevations 6 are formed such that they in their investment of Bearing surface 8 of the slider 2 abut against the inner surface of the top 9 of the carrier 1 with their side surfaces on the flanks of the recess 5.
- the width of the recess 5 can be selected to be greater than the maximum difference of maximum inner width of the carrier 1 and minimum outer width of the slider 2. In this way, the elevations 6 of the slide 2 always come in its mounting in the carrier 1 in the Well 5 to lie.
- a second embodiment in which the carrier 1 has two recesses 5 arranged parallel to one another and extending in the longitudinal direction of the carrier 1. In these recesses 5 engage two elevations 6 on the contact surface 8 of the slider 2, as in Fig. 11 shown.
- the elevations are 6, as in Fig. 12 is shown, diagonally offset from each other on the contact surface 8 of the slider 2 is arranged.
- a simple mounting of the slider 2 in the carrier 1 allows, without causing overdetermination of the positive connection in the determination of the slider 2 by the adjusting device 4 on the carrier 1.
- the elevations 6 are formed in this embodiment as ball sections, while the corresponding recesses 5 have a trapezoidal cross-section.
- a third embodiment is in the Fig. 13 to 15 shown.
- a positioning of the slider 2 in a preselected grid is possible.
- a plurality of depressions 5 can be arranged in the inner surface of the closed upper side 9 of the carrier 1, which can also be arranged at an angle to the longitudinal direction, the distance of which corresponds to a grid dimension in the longitudinal direction.
- the corresponding elevations 6 are then on arranged the contact surface 8 of the slider 2 according to the orientation of the recesses 5, which are either spaced apart on an imaginary line or arranged side by side with a multiple of the grid dimension.
- the combinations of depressions on the inner surface of the upper side 9 of the carrier 1 and the elevations 6 on the abutment surface 8 of the slide 2 described in the three exemplary embodiments can also be realized, at least partially, in the reverse form. That is, the inner surface 9 of the top of the carrier 1 is provided with elevations and the abutment surface 8 of the slider 2 is designed with corresponding recesses. This variant is analogous to that in the Fig. 1 to 7 illustrated embodiment in the FIGS. 18 and 19 shown.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Measuring Fluid Pressure (AREA)
Description
Die vorliegende Erfindung betrifft einen Oberwalzen-Trag- und Belastungsarm für ein Streckwerk einer Spinnereimaschine, mit einem nach unten offenen U-förmigen Träger, in dem mindestens ein Schieber angeordnet ist, welcher ein Belastungselement sowie einen Halter zur Aufnahme einer Oberwalze und eine Verstellvorrichtung, mittels der der Schieber gegenüber dem Träger in Längsrichtung verschiebbar und an der Oberseite des Trägers festlegbar ist, umfasst.The present invention relates to a top roller carrying and loading arm for a drafting of a spinning machine, with a downwardly open U-shaped support, in which at least one slider is arranged, which a loading element and a holder for receiving a top roller and an adjusting device by means of the slider relative to the carrier in the longitudinal direction displaceable and can be fixed to the upper side of the carrier comprises.
Aus der
Als nachteilig an dieser Art der drehfesten Fixierung des Schiebers erweist sich, dass zum Zweck der Einstellung der Streckfeldweite durch das Verschieben des Schiebers im Träger ein gewisses Spiel zwischen den Planschienen und den Außenflächen des Schiebers vorhanden sein muss, welches in Abhängigkeit von der Fertigungsgenauigkeit variieren kann. Dieses veränderliche Spiel hat direkten Einfluss auf die Güte der Parallelhaltung des Schiebers gegenüber dem Träger und damit der Oberwalze am Halter gegenüber der korrespondierenden Unterwalze im Streckwerk. Durch die variierende Fertigungsungenauigkeit wird die Parallelhaltung negativ beeinflusst.A disadvantage of this type of rotationally fixed fixation of the slide proves that for the purpose of adjusting the drafting field width by moving the slider in the carrier a certain clearance between the rails and the outer surfaces of the slider must be present, which may vary depending on the manufacturing accuracy , This variable game has a direct influence on the quality the parallel attitude of the slider relative to the carrier and thus the upper roller on the holder relative to the corresponding lower roller in the drafting system. Due to the varying manufacturing inaccuracy, the parallelism is negatively affected.
Aufgabe der vorliegenden Erfindung ist es, eine drehfeste Fixierung des Schiebers im Träger zu gewährleisten, ohne dass Bauteiltoleranzen oder das drehfeste Festlegen des Schiebers einen Einfluss auf die Parallelhaltung des Schiebers im Träger haben.Object of the present invention is to ensure a rotationally fixed fixation of the slider in the carrier without component tolerances or the rotationally fixed setting of the slider have an influence on the parallel position of the slider in the carrier.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of
Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.Advantageous developments are the subject of the dependent claims.
Gemäß dem Anspruch 1 wird vorgeschlagen, dass zur bezüglich seiner Hochachse drehfesten Fixierung des Schiebers innerhalb des U-förmigen Trägers eine Anlagefläche des Schiebers eine Oberflächenstrukturierung aufweist, die mit einer korrespondierenden Oberflächenstrukturierung der Innenfläche der Oberseite des Trägers zur Erzielung eines Formschlusses in Eingriff steht. Hierdurch wird eine sichere parallele Führung der Oberwalze zu ihrer korrespondierenden Unterwalze erreicht, die kostengünstig und mit geringem Fertigungsaufwand realisierbar ist. Auf die im Kennzeichen des Anspruches 1 beschriebene Weise erfolgt die Führung des Schiebers und des darin angeordneten Halters nicht mehr durch die spielbehafteten, zueinander beabstandeten Seitenflächen des Schiebers und des Tragarmes respektive der Planschienen, wie es beim Stand der Technik der Fall ist. Demgemäß können die Fertigungstoleranzen des Schiebers und des Trägers an den Seitenflächen erweitert werden, wodurch die Fertigung des Trägers und des Schiebers ebenfalls vereinfacht wird.According to
Hierbei kann die Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers aus zumindest einer Vertiefung bestehen, in die zumindest eine korrespondierende Oberflächenstrukturierung auf der Anlagefläche des Schiebers in Form einer Erhöhung eingreift.In this case, the surface structuring on the inner surface of the upper side of the carrier can consist of at least one depression into which at least one corresponding surface structuring on the contact surface of the slide engages in the form of an elevation.
Alternativ kann hierbei die Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers aus zumindest einer Erhöhung bestehen, in die zumindest eine korrespondierende Oberflächenstrukturierung auf der Anlagefläche des Schiebers in Form einer Vertiefung eingreift. Der durch das ineinandergreifen von Erhöhung und Vertiefung erreichte Formschluss ermöglicht eine einfache und sichere Festlegung des Schiebers gegenüber dem Träger, um ein Verdrehen des Schiebers um seine Hochachse bei der Fixierung zu vermeiden. Die Oberflächenstrukturierungen in Form von Vertiefungen beziehungsweise Erhöhungen lassen sich durch Einprägen in den Träger beziehungsweise in den Schieber auf kostengünstige Weise mit der erforderlichen Fertigungsgenauigkeit realisieren.Alternatively, in this case, the surface structuring on the inner surface of the upper side of the carrier consist of at least one elevation into which at least one corresponding surface structuring on the contact surface of the slide engages in the form of a depression. The positive engagement achieved by the intermeshing of increase and depression allows a simple and secure fixing of the slider relative to the carrier in order to prevent the slider from rotating about its vertical axis during the fixing. The surface structuring in the form of depressions or elevations can be realized by impressing in the carrier or in the slider in a cost effective manner with the required manufacturing accuracy.
In einer weiteren Ausführungsform kann vorgesehen sein, dass die Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers aus einer Vielzahl von hintereinander angeordneten Vertiefungen besteht, die sich unter einem Winkel zur Längsachse des Trägers erstrecken, in die jeweils eine einzelne, sich unter einem korrespondierenden Winkel zur Längsachse des Schiebers erstreckende, als Erhöhung auf der Anlagefläche des Schiebers ausgeführte Oberflächenstrukturierung eingreift.In a further embodiment it can be provided that the surface structuring on the inner surface of the top of the carrier consists of a plurality of successively arranged recesses which extend at an angle to the longitudinal axis of the carrier, in each case a single, at a corresponding angle to Longitudinal axis of the slider extending, engages executed as an increase on the contact surface of the slider surface structuring.
Ebenso kann die Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers aus einer Vielzahl von hintereinander angeordneten Erhöhungen bestehen, die sich unter einem Winkel zur Längsachse des Trägers erstrecken, in die eine korrespondierende Oberflächenstrukturierung auf der Anlagefläche des Schiebers eingreift, die als eine Vielzahl entsprechender, sich unter einem korrespondierenden Winkel zur Längsachse des Schiebers über die Ausdehnung der Anlagefläche in Längsrichtung des Schiebers erstreckenden Vertiefungen ausgeführt sind.Likewise, the surface structuring on the inner surface of the top of the carrier of a plurality of consecutively arranged elevations extending at an angle to the longitudinal axis of the carrier, in which a corresponding surface structuring on the contact surface of the slider engages, as a plurality of corresponding, at a corresponding angle to the longitudinal axis of the slider over the extension of the contact surface in the longitudinal direction of the Slider extending depressions are executed.
Die Ausgestaltung der Oberflächenstrukturierung als eine Vielzahl von hintereinander angeordneten Erhöhungen oder Vertiefungen, die sich quer zur Längsachse des Trägers erstrecken, in die jeweils eine einzelne, sich quer zur Längsachse des Schiebers erstreckende korrespondierende Vertiefung oder Erhöhung auf der Anlagefläche des Schiebers eingreift, ermöglicht die Verstellbarkeit des Schiebers innerhalb eines Rastermaßes, das aus den gewählten Abständen der Erhöhungen oder Vertiefungen zueinander resultiert. Der Schieber kann somit in Längsrichtung des Trägers in diskreten Schritten verstellt werden.The design of the surface structuring as a plurality of elevations or depressions arranged one behind the other, which extend transversely to the longitudinal axis of the carrier, in each of which a single, extending transversely to the longitudinal axis of the slider extending corresponding recess or increase on the contact surface of the slider, allows the adjustability the slider within a pitch that results from the selected distances of the ridges or depressions to each other. The slider can thus be adjusted in discrete steps in the longitudinal direction of the carrier.
Alternativ kann die Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers aus einer durchgehenden Vertiefung bestehen, die sich parallel zur Längsachse des Trägers erstreckt, in die zwei zueinander beabstandete, mit der Vertiefung korrespondierende, als Erhöhungen auf der Anlagefläche des Schiebers ausgeführte Oberflächenstrukturierungen, die sich parallel zu Längsachse des Schiebers erstrecken, eingreifen. Bei dieser Variante ist der Schieber entlang der Vertiefung in Längsrichtung frei verschiebbar.Alternatively, the surface structuring on the inner surface of the upper side of the carrier may consist of a continuous recess extending parallel to the longitudinal axis of the carrier, into the two spaced-apart surface patterns corresponding to the recess and formed as ridges on the abutment surface of the slider extend to the longitudinal axis of the slider, engage. In this variant, the slider is freely displaceable along the recess in the longitudinal direction.
Vorzugsweise können die Erhöhungen beziehungsweise Vertiefungen hintereinander fluchtend auf der Anlagefläche des Schiebers angeordnet sein.Preferably, the elevations or depressions can be arranged one behind the other in alignment with the contact surface of the slide.
Des Weiteren kann die Oberflächenstrukturierung auf der Anlagefläche des Schiebers aus einer durchgehenden Erhöhung bestehen, die in eine korrespondierende Oberflächenstrukturierung an der Innenfläche der Oberseite des Trägers in Form einer Vertiefung eingreift.Furthermore, the surface structuring on the abutment surface of the slider can consist of a continuous increase, which engages in a corresponding surface structuring on the inner surface of the upper side of the carrier in the form of a depression.
Vorzugsweise kann der Träger an der Innenfläche der Oberseite eine als zwei zueinander parallele, durchgehende Vertiefungen ausgebildete Oberflächenstrukturierung aufweisen, die sich parallel zur Längsachse des Trägers erstrecken, in die zwei einander diagonal gegenüberliegend auf der Anlagefläche des Schiebers angeordnete, mit der Vertiefung korrespondierende, als Erhöhungen ausgebildete Oberflächenstrukturierungen eingreifen.Preferably, the carrier may have on the inner surface of the upper side as a two mutually parallel, continuous recesses formed surface structuring, which extend parallel to the longitudinal axis of the carrier, in the two diagonally opposite each other on the contact surface of the slider arranged, corresponding to the recess as elevations engage trained surface structuring.
Insbesondere können die als Oberflächenstrukturierungen ausgebildeten Erhöhungen auf der Anlagefläche des Schiebers an dessen Peripherie angeordnet sein. Eine möglichst große Beabstandung der Erhöhungen auf der Anlagefläche des Schiebers zueinander ermöglicht eine gute Führung in der oder den Vertiefungen an der Innenfläche der Oberseite des Trägers, was durch die randnahe Anordnung der Erhöhungen auf der Anlagefläche des Schiebers erreicht wird.In particular, the elevations designed as surface structurings can be arranged on the contact surface of the slide on its periphery. The greatest possible spacing of the elevations on the abutment surface of the slide relative to one another enables good guidance in the depression or depressions on the inner surface of the upper side of the carrier, which is achieved by arranging the elevations on the abutment surface of the slide close to the edge.
Die Anordnung kann vorzugsweise derart gewählt sein, dass die Erhöhungen unabhängig von ihrer Anordnung auf der Anlagefläche einen maximalen Abstand von etwa 7 mm zu der umlaufenden Kante der Anlagefläche aufweisen.The arrangement may preferably be selected such that the elevations, regardless of their arrangement on the contact surface have a maximum distance of about 7 mm to the peripheral edge of the contact surface.
Eine vorteilhafte Weiterbildung sieht vor, dass die Breite der als Vertiefung ausgeführten Oberflächenstrukturierung größer ist als die größtmögliche Differenz zwischen der maximalen Innenbreite des Trägers und der minimalen Außenbreite des Schiebers. Auf diese Weise ist erreichbar, dass die Erhöhungen auf der Anlagefläche des Schiebers bei der Montage des Oberwalzen- Trag- und Belastungsarmes immer in der Vertiefung an der Innenfläche der Oberseite des Trägers zu liegen kommen. Der Aufwand bei der Montage wird dadurch reduziert, da ein Ausrichten des Schiebers gegenüber dem Träger nicht mehr erforderlich ist. Entsprechendes gilt für die Ausführungen, bei denen die Vertiefungen auf der Anlagefläche des Schiebers und die Erhöhungen an der Innenfläche der Oberseite des Trägers vorgesehen sind.An advantageous development provides that the width of the surface structuring designed as a depression is greater than the maximum possible difference between the maximum inner width of the carrier and the minimum outer width of the slider. In this way it can be achieved that the elevations on the contact surface of the slider during assembly of the Upper roller carrying and loading arm always come to rest in the recess on the inner surface of the top of the carrier. The effort during assembly is reduced because an alignment of the slider relative to the support is no longer required. The same applies to the embodiments in which the recesses are provided on the contact surface of the slider and the elevations on the inner surface of the top of the carrier.
Vorzugsweise können die als Vertiefungen und Erhöhungen ausgebildeten Oberflächenstrukturierungen trapezförmig ausgebildet sein.Preferably, the surface structures formed as depressions and elevations may be trapezoidal.
Alternativ können die als Vertiefungen und Erhöhungen ausgebildeten Oberflächenstrukturierungen V-förmig ausgebildet sein.Alternatively, the surface structures formed as depressions and elevations may be V-shaped.
Weiterhin können die als Vertiefungen und Erhöhungen ausgebildeten Oberflächenstrukturierungen kreissegmentförmig ausgebildet sein.Furthermore, the surface structuring formed as depressions and elevations can be designed in the shape of a circle segment.
Die Erfindung wird nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert.The invention will be explained in more detail with reference to embodiments shown in the drawings.
Darin zeigen:
- Fig. 1
- eine Seitenansicht eines U-förmigen Trägers eines Oberwalzen-Trag- und Belastungsarmes;
- Fig. 2
- eine Ansicht des Trägers gemäß
Fig. 1 von unten; - Fig. 3
- eine Schnittansicht entlang der Linie III - III gemäß
Fig. 1 ; - Fig. 4
- eine Detailansicht A gemäß
Fig. 3 ; - Fig. 5
- eine Seitenansicht eines Schiebers;
- Fig. 6
- eine Detailansicht B des Schiebers gemäß
Fig. 5 ; - Fig. 7
- eine Schnittansicht entlang der Linie VII - VII gemäß
Fig. 6 ; - Fig. 8
- eine Seitenansicht eines Trägers gemäß einer zweiten Ausführungsform;
- Fig. 9
- eine Ansicht des Trägers gemäß
Fig. 8 von unten; - Fig. 10
- eine Schnittansicht entlang der Linie X - X gemäß
Fig. 8 ; - Fig. 11
- eine Detailansicht C gemäß
Fig. 10 ; - Fig. 12
- eine Draufsicht auf einen Schieber gemäß
Fig. 10 ; - Fig. 13
- eine perspektivische Ansicht eines Trägers gemäß einer dritten Ausführungsform;
- Fig. 14
- eine Detailansicht D gemäß
Fig. 13 ; - Fig. 15
- eine Ansicht des Trägers gemäß
Fig. 13 von unten; - Fig. 16
- eine perspektivische Ansicht des Schiebers gemäß
Fig. 13 ; - Fig. 17
- eine Detailansicht E gemäß
Fig. 16 ; - Fig. 18
- eine Schnittansicht einer vierten Ausführungsform des Trägers und des Schiebers entlang der Linie III - III in
Fig. 1 ; - Fig. 19
- eine Detailansicht F gemäß
Fig. 18 .
- Fig. 1
- a side view of a U-shaped carrier of a top roller carrying and loading arm;
- Fig. 2
- a view of the carrier according to
Fig. 1 from underneath; - Fig. 3
- a sectional view taken along the line III - III according to
Fig. 1 ; - Fig. 4
- a detailed view A according to
Fig. 3 ; - Fig. 5
- a side view of a slider;
- Fig. 6
- a detailed view B of the slider according to
Fig. 5 ; - Fig. 7
- a sectional view taken along the line VII - VII according to
Fig. 6 ; - Fig. 8
- a side view of a carrier according to a second embodiment;
- Fig. 9
- a view of the carrier according to
Fig. 8 from underneath; - Fig. 10
- a sectional view taken along the line X - X according to
Fig. 8 ; - Fig. 11
- a detailed view C according to
Fig. 10 ; - Fig. 12
- a plan view of a slider according to
Fig. 10 ; - Fig. 13
- a perspective view of a carrier according to a third embodiment;
- Fig. 14
- a detailed view D according to
Fig. 13 ; - Fig. 15
- a view of the carrier according to
Fig. 13 from underneath; - Fig. 16
- a perspective view of the slider according to
Fig. 13 ; - Fig. 17
- a detailed view E according to
Fig. 16 ; - Fig. 18
- a sectional view of a fourth embodiment of the carrier and the slider along the line III - III in
Fig. 1 ; - Fig. 19
- a detailed view F according to
Fig. 18 ,
Die Darstellung in
Im Betrieb wird die Oberwalze vom Belastungselement 10 mit einer Anpresskraft beaufschlagt, die vom Lenker 3 auf die Oberwalze übertragen wird. Des Weiteren dient der Lenker 3 dazu, die Oberwalze möglichst parallel zu einer korrespondierenden Unterwalze des Streckwerkes zu halten. Um eine präzise Positionierung der Oberwalze parallel zur Unterwalze zu gewährleisten, muss der Schieber 2 gegen ein Verdrehen, beispielsweise beim Anziehen der auf der Oberseite des Schiebers 2 befindlichen Verstellvorrichtung 4 um deren vertikale Achse, gesichert werden. Hierzu ist vorgesehen, dass zur drehfesten Fixierung des Schiebers 2 quer zur Längsachse L des U-förmigen Trägers 1 der Schieber 2 eine Anlagefläche 8 aufweist, die mit der Innenfläche der geschlossenen Oberseite 9 des Trägers 1 formschlüssig verbunden ist. Dies wird gemäß dem in den
In
Die Darstellung in
Der Formschluss zwischen dem Träger 1 und dem Schieber 2 wird im vorliegenden Ausführungsbeispiel gemäß den
Weiterhin wird zur Vermeidung einer Überbestimmung der formschlüssigen Befestigung auf die Anordnung von mehr als zwei Erhöhungen 6 auf der Anlagefläche 8 des Schiebers 2 beziehungsweise zwei parallele, sich in Längsrichtung des Trägers 1 erstreckende Vertiefungen 5 verzichtet. Um beim Anziehen der Verstellvorrichtung 4 eine spielfreie Anlage der Erhöhungen 6 in der Vertiefung 5 zu erreichen, sind die Erhöhungen 6 derart ausgebildet, dass sie bei ihrer Anlage der Anlagefläche 8 des Schiebers 2 an der Innenfläche der Oberseite 9 des Trägers 1 mit ihren Seitenflächen an den Flanken der Vertiefung 5 anliegen. Zur Vereinfachung der Montagen kann die Breite der Vertiefung 5 größer gewählt werden, als die größtmögliche Differenz von maximaler Innenbreite des Trägers 1 und minimaler Außenbreite des Schiebers 2. Auf diese Weise kommen die Erhöhungen 6 des Schiebers 2 bei dessen Montage im Träger 1 immer in der Vertiefung 5 zu liegen.Furthermore, to avoid overdetermination of the positive fastening on the arrangement of more than two
In den
Ein drittes Ausführungsbeispiel ist in den
Die in den drei Ausführungsbeispielen beschriebenen Kombinationen von Vertiefungen an der Innenfläche der Oberseite 9 des Trägers 1 und den Erhöhungen 6 auf der Anlagefläche 8 des Schiebers 2 sind zumindest teilweise auch in umgekehrter Form realisierbar. Das heißt, die Innenfläche 9 der Oberseite des Trägers 1 ist mit Erhöhungen versehen und die Anlagefläche 8 des Schiebers 2 ist mit korrespondierenden Vertiefungen ausgeführt. Diese Variante ist analog zu dem in den
The combinations of depressions on the inner surface of the
Claims (15)
- Top roller carrying and weighting arm for a drafting arrangement of a spinning machine, comprising a U-shaped carrier (1) which is open at the bottom, in which at least one slide (2) is arranged, which comprises a weighting element (10) and a holder (3) for receiving a top roller and an adjusting device (4) by means of which the slide (2) can be displaced relative to the carrier (1) in the longitudinal direction and can be fixed on the upper side (9) of the carrier (1), characterised in that for non-rotatable fixing of the slide (2) with respect to its vertical axis within the U-shaped carrier (1), a contact face (8) of the slide (2) has a surface structuring (6), which is in engagement with a corresponding surface structuring (5) of the inner face of the upper side (9) of the carrier (1) to achieve a positive locking.
- Top roller carrying and weighting arm according to claim 1, characterised in that the surface structuring on the inner face of the upper side (9) of the carrier (1) consists of at least one indentation (5), in which at least one corresponding surface structure on the contact face (8) of the slide (2) in the form of an elevation (6) engages.
- Top roller carrying and weighting arm according to claim 1, characterised in that the surface structuring on the inner face of the upper side (9) of the carrier (1) consists of at least one elevation (6), in which at least one corresponding surface structuring on the contact face (8) of the slide (2) in the form of an indentation (5) engages.
- Top roller carrying and weighting arm according to either of claims 1 or 2, characterised in that the surface structuring on the inner face of the upper side (9) of the carrier (1) consists of a plurality of indentations (5) arranged one behind the other, which extend at an angle to the longitudinal axis (L) of the carrier (1), in which, in each case, a single surface structuring extending at a corresponding angle to the longitudinal axis of the slide (2) and configured as an elevation (6) on the contact face (8) of the slide (2) engages.
- Top roller carrying and weighting arm according to either of claims 1 or 3, characterised in that the surface structuring on the inner face of the upper side (9) of the carrier (1) consists of a large number of elevations (6) arranged one behind the other, which extend at an angle to the longitudinal axis (L) of the carrier (1), in which a corresponding surface structuring on the contact face (8) of the slide (2) engages, which is configured as a large number of corresponding indentations (5) extending at a corresponding angle to the longitudinal axis of the slide (2) over the axial extent thereof.
- Top roller carrying and weighting arm according to either of claims 1 or 2, characterised in that the surface structuring on the inner face of the upper side (9) of the carrier (1) consists of a continuous indentation (5), which extends parallel to the longitudinal axis (L) of the carrier (1), in which two surface structurings, which are spaced apart from one another, correspond to the indentation (5), configured as elevations (6) on the contact face (8) of the slide (2) and which extend parallel to the longitudinal axis of the slide (2), engage.
- Top roller carrying and weighting arm according to any one of claims 5 or 6, characterised in that the indentations (5) or the elevations (6) are arranged aligned one behind the other on the contact face (8) of the slide (2).
- Top roller carrying and weighting arm according to either of claims 1 or 2, characterised in that the surface structuring on the contact face (8) of the slide (2) consists of a continuous elevation (6), which engages in a corresponding surface structuring on the inner face of the upper side (9) of the carrier (1) in the form of an indentation (5).
- Top roller carrying and weighting arm according to either of claims 1 or 2, characterised in that the carrier (1) has, on the inner face of the upper side (9), a surface structuring configured as two continuous indentations (5) which are parallel to one another, which extend parallel to the longitudinal axis (L) of the carrier (1), in which two surface structurings arranged diagonally opposite one another on the contact face (8) of the slide (2), corresponding with the recess (5) and configured as elevations (6), engage.
- Top roller carrying and weighting arm according to any one of claims 1 to 9, characterised in that the surface structurings (6) on the contact face (8) of the slide (2) are arranged on the periphery thereof.
- Top roller carrying and weighting arm according to claim 10, characterised in that the elevations (6) have a maximum spacing of about 7 mm from the peripheral edge of the contact face (8).
- Top roller carrying and weighting arm according to any one of claims 1 to 10, characterised in that the width of the surface structuring configured as an indentation (5) is greater than the greatest possible difference between the maximum inner width of the carrier (1) and the minimum outer width of the slide (2).
- Top roller carrying and weighting arm according to any one of claims 1 to 11, characterised in that the surface structurings configured as indentations (5) and elevations (6) are trapezoidal.
- Top roller carrying and weighting arm according to any one of claims 1 to 11, characterised in that the surface structurings configured as indentations (5) and elevations (6) are V-shaped.
- Top roller carrying and weighting arm according to any one of claims 1 to 11, characterised in that the indentations (5) and elevations (6) configured as surface structurings are segment of a circle-shaped.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008056210A DE102008056210A1 (en) | 2008-11-06 | 2008-11-06 | Upper roller carrying and loading arm for a drafting system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008056210 Previously-Filed-Application | 2008-11-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2189558A1 EP2189558A1 (en) | 2010-05-26 |
EP2189558B1 true EP2189558B1 (en) | 2013-05-22 |
Family
ID=42096386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090011642 Active EP2189558B1 (en) | 2008-11-06 | 2009-09-11 | Upper cylinder carrying and load arm for a stretching unit |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2189558B1 (en) |
JP (1) | JP2010111991A (en) |
CN (1) | CN101736458B (en) |
DE (1) | DE102008056210A1 (en) |
ES (1) | ES2409254T3 (en) |
RU (1) | RU2507322C2 (en) |
TW (1) | TW201031776A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102691146B (en) * | 2012-06-08 | 2015-01-07 | 常州市同和纺织机械制造有限公司 | Cradle pressurizing component |
CN102926063A (en) * | 2012-11-09 | 2013-02-13 | 无锡市新康纺机有限公司 | Heavy hammer lever combining component on roving frame |
DE102019115905A1 (en) * | 2019-06-12 | 2020-12-17 | Saurer Intelligent Technology AG | Drafting unit with a load carrier and load carrier for a drafting unit |
CN111809279B (en) * | 2020-07-03 | 2021-06-11 | 安庆师范大学 | Integrated roller stand of ring spinning frame |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE532613A (en) * | 1954-04-01 | |||
CH330431A (en) * | 1955-01-19 | 1958-06-15 | Spinnerei Karl Marx Veb | Upper roll support and load arm for spinning machine drawing systems |
FR1179853A (en) * | 1957-07-25 | 1959-05-28 | Alsacienne Constr Meca | Pressure arms, in particular for devices for drawing textile fibers |
JPS5617493Y2 (en) * | 1976-10-15 | 1981-04-23 | ||
SU810858A1 (en) * | 1979-03-07 | 1981-03-07 | Пензенский Машиностроительный Завод | Device for loading pressing roller of drawing device of loom |
JPS6433218A (en) * | 1987-07-27 | 1989-02-03 | Toray Eng Co Ltd | Draft apparatus |
DE3902859A1 (en) | 1989-02-01 | 1990-08-09 | Skf Textilmasch Komponenten | Top-roller supporting and loading arm for spinning-machine drawframes |
DE3925004A1 (en) * | 1989-07-28 | 1991-02-07 | Skf Textilmasch Komponenten | Ring spinning drafting Zone - has plastic cradle fitted to lever arm for pressure on top rollers |
DE10243800A1 (en) * | 2002-09-17 | 2004-03-18 | Maschinenfabrik Rieter Ag | Support frame for drafting system on ring spinning machine includes insert for alternative roller positions, e.g. conversion to sliver compacting |
DE102005026792B4 (en) * | 2005-06-10 | 2020-10-22 | Saurer Spinning Solutions Gmbh & Co. Kg | Top roller support and loading arm |
DE102005050537B4 (en) * | 2005-10-21 | 2021-08-12 | Saurer Spinning Solutions Gmbh & Co. Kg | Drafting system for a textile machine |
DE102006029132A1 (en) * | 2006-06-22 | 2007-12-27 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Making support frame to carry stretching rollers used e.g. in textile industry, cuts side frames from sheet metal by laser, without subsequent mechanical treatment of cut edges |
-
2008
- 2008-11-06 DE DE102008056210A patent/DE102008056210A1/en not_active Withdrawn
-
2009
- 2009-09-11 ES ES09011642T patent/ES2409254T3/en active Active
- 2009-09-11 EP EP20090011642 patent/EP2189558B1/en active Active
- 2009-10-15 JP JP2009237962A patent/JP2010111991A/en active Pending
- 2009-11-02 CN CN 200910209836 patent/CN101736458B/en active Active
- 2009-11-04 TW TW98137350A patent/TW201031776A/en unknown
- 2009-11-05 RU RU2009140659/12A patent/RU2507322C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW201031776A (en) | 2010-09-01 |
RU2507322C2 (en) | 2014-02-20 |
CN101736458B (en) | 2013-06-05 |
JP2010111991A (en) | 2010-05-20 |
ES2409254T3 (en) | 2013-06-26 |
EP2189558A1 (en) | 2010-05-26 |
DE102008056210A1 (en) | 2010-05-12 |
CN101736458A (en) | 2010-06-16 |
RU2009140659A (en) | 2011-05-10 |
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