EP2230338B1 - 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
- EP2230338B1 EP2230338B1 EP10001356A EP10001356A EP2230338B1 EP 2230338 B1 EP2230338 B1 EP 2230338B1 EP 10001356 A EP10001356 A EP 10001356A EP 10001356 A EP10001356 A EP 10001356A EP 2230338 B1 EP2230338 B1 EP 2230338B1
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- EP
- European Patent Office
- Prior art keywords
- carrier
- slide
- transition
- top roller
- slider
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- 230000007704 transition Effects 0.000 claims abstract description 75
- 238000009987 spinning Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 241001295925 Gegenes Species 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 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
Definitions
- the present invention relates to a Oberwalzen- 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 by means of the slider relative to the carrier in the longitudinal direction displaceable on the carrier can be fixed comprises, wherein with respect to its vertical axis rotationally fixed fixing of the slider within the U-shaped support, the slide rests with at least one side wall on an inner side surface of the carrier.
- 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 positive engagement between the body of the slide and the plan rails by the mutually parallel planar outer walls of the slide and the vertical side surfaces of the plan 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 stretching field width by moving the slider in the carrier there must be some clearance between the plan rails and the outer walls of the slide, which may vary depending on the manufacturing accuracy.
- This variable game has a direct influence on the quality of 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 have an influence on the parallel attitude of the slider in the carrier.
- the radius of incidence which is formed on the inside of the carrier in at least one transition of the top to the adjacent side surface, is smaller than the perimeter radius, in one of the corresponding transitions between the top and the side wall of the slider is formed, and in that the slider has means which cooperate with the carrier such that the slider automatically applies in the determination by means of the adjusting and fixing device in the carrier against the adjacent to the radius of circumference inner side surface of the carrier.
- the rotationally fixed fixation of the slider within the U-shaped carrier is achieved by the adjustment by the fact that, when moving the slider in the direction of one of the side surfaces of the carrier due to the larger radius perimeter 'in the longitudinal transition the slider between the slider and the carrier between the transitions does not establish a positive connection, but that the side wall and the top of the slider rests against the inner side surface and on the inner upper side of the carrier.
- a secure parallel guidance of the slide and thus arranged in the slide upper roller is achieved to its corresponding lower roller, which is inexpensive and can be realized with little manufacturing effort.
- the transition of the carrier and the transition of the slide may have a radially curved course.
- the radius of incidence or the radius of circumference correspond to the radii of curvature of the transitions of the transitions.
- the transition of the carrier and the transition of the slider may have a polyhedral shape.
- the transition of the carrier and the transition of the slide which have a polyhedral course, be designed as bevels with different widths.
- the radius of incidence corresponds to the radius of an imaginary inscribed circle of the polyhedral course of the transition of the carrier that touches all sides of the transition in its interior.
- the radius of circumference corresponds to the radius of an imaginary circumference of the polyhedral course of the transition of the carrier, which connects all vertices of the polyhedral course of the transition of the slide together.
- the means may be designed as a transition of the slider, which has a smaller radius than the corresponding transition of the carrier.
- the transition of the slider can rest in the transition of the carrier and be guided by this, whereby the slider comes to rest on the opposite inner side surface of the carrier to the plant.
- the means designed as a transition may be at least partially sharp-edged.
- the means may be formed of at least two arranged on the side wall end portions arranged, which are supported in the transition to the inside of the carrier.
- the means may be designed as at least one projection arranged on the upper side of the slide and having a starting bevel which projects into an opening extending in the longitudinal direction on the upper side of the carrier.
- the at least one projection may extend over at least 50% of the longitudinal extent of the upper side of the slider in its longitudinal direction.
- two spaced-apart projections may be provided on the upper side of the slider, which protrude into the opening extending in the longitudinal direction on the horizontal upper side of the carrier.
- the at least one projection may be V-shaped.
- the means may be formed of at least two sections arranged on the upper side of the slide end, which are supported in the transition of the carrier.
- the representations in the Fig. 1 to 6 show 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, and at least one in Carrier 1 arranged preferably U-shaped slide 2.
- the at least one slider 2 serves to receive and load a top roller of the drafting system and is connected during operation of the drafting system fixed to the carrier 1.
- the slider 2 along the longitudinal axis L of the carrier 1 is displaceable.
- the carrier 1 on its closed upper side as elongated holes running openings 6, within which the slider 2 is displaceable in order to adjust stretching field widths, as shown in FIG Fig. 2 can be seen.
- the displaceability as well as the fixability of the slider 2 on the carrier 1 is achieved by an adjusting and fixing device 4, which may be designed, for example, as a screw to fix the slider 2 after its displacement in a certain position.
- the slider 2 comprises a handlebar 3, which serves to receive a top roller, and a loading element 5, which may for example be designed as a spring, as in Fig. 3 is shown to exert a defined compressive force on the top roller.
- the preferably U-shaped slide 2 has, as in Fig. 3 shown, two mutually parallel side walls 8, 9 and a two parallel side walls 8, 9 interconnecting top 12. In the interior of the slider 2, as already indicated, designed as a spring load element 5 is arranged.
- the top roller is acted upon by the loading element 5 with a contact force, which is transmitted from the link 3 to the top roller.
- 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 must be secured against rotation, for example when operating the adjustment device 4 located on the upper side 12 of the slider 2 about its vertical axis.
- the slider 2 has two transitions 13A and 13B.
- the transition 13B between the top 12 and the side wall 8 of the slider 2 is deviated from the transition 13A between the top 12 and the side wall 9 of the slider 2, as will be explained below.
- the radius of circumference UR corresponds to the radius of curvature of the transition 13B on the slider 2.
- the radius of the circle IR corresponds to the radius of curvature of the transition 11 on the inside of the carrier 1.
- the slider 2 on its upper side 12 means which cooperate with the carrier 1 such that the slide 2 in the determination by a corresponding Actuation of the adjusting device 4 in the carrier 1 is automatically displaceable against the inner side surface 7 of the carrier 1.
- the means as the transition 13A between the top 12 and the side wall 9 of the slider 2 is formed, which is designed with a smaller radius than the corresponding transition 11 of the carrier 1.
- the transition 13A of the slider 2 such a small Have radius that forms a sharp-edged transition 13A, as in 3 and 6 is indicated.
- the side wall 9 of the slider 2 has in the region of the transition 13A at least two end-side sections 14, which are arranged opposite the side wall 9 at an angle of 0 ° to 90 ° and which are supported in the transition 11 on the inside of the carrier 1, like in the Fig. 5 and 6 is shown.
- the sections 14 of the slider 2 run when tightening the adjusting device 4 in the provided with the radius of incidence IR transition 11 of the carrier 1. As a result, the slider 2 is pressed with its side wall 8 against this facing inner side surface 7 of the support 1. Due to the different sizes of the incircle radius 'IR and radius of circumference' UR in the upper 11 of the carrier 1 and in the transition 13B of the slider 2, the slider 2 is not in its transition 13B in one of the transitions 11 of the carrier, but is supported its top 12 and its side wall 8 on the horizontal top 10 and one of the side surface 7 of the carrier 1 from. With reference to the Fig. 7 to 10 a second embodiment for the rotationally fixed fixing of a slider 20 in the carrier 1 is shown.
- the second embodiment of the slider 20 differs from the first embodiment of the slider 2 in that both transitions 22 of the side walls 21 to the top 23 of the slider 20 are the same Perimeter radius UR have, as well as in that on the upper side 23 of the slider 20 at least one projection 24 is provided with a run-on slope 25 and the projection 24 projects into the at least one on the horizontal top 10 of the support 1 in the longitudinal direction extending opening 6, as it in the 8 and 9 is shown.
- the radius of circumference UR of the transitions 22 of the slider 20 is, as already described in the first embodiment, made larger than the radius of the circle IR in the passages 11 of the carrier 1.
- the projections 24 may have a V-shaped or a half-trapezoidal blank, as he Detail view in Fig. 9 can be seen to have.
- a projection 24 is arranged, which projects into the longitudinally extending opening 6 of the carrier 1.
- the projections 24 have on their on the opening 6 delimiting wall 26 of the support 1 adjacent side inclined to the horizontal stop surface 25.
- the automatic contact with at least one of the side surfaces 7 of the carrier 1 is achieved in this embodiment, that when tightening the adjusting device 4, the two projections 24 are guided in the at least one opening 6 with its contact surface 25 along the wall 26, wherein the side wall 21 of the slider 20, which faces away from the contact surface 25 of the projection 24, is pressed against the side surface 7 of the carrier 1, so that the side wall 21 on the inner side surface 7 of the carrier 1 comes to rest flatly.
- the upper side 23 of the slider 20 is also flat against the inner top 10 of the carrier 1, to which the slider 20 is used by tightening the adjustment and fixing device 4 designed as a screw.
- An alternative embodiment of the slider 20 provides that only one projection 24 at the top of the slider 20th is provided which extends over at least 50% of the top of the slider 2 in the longitudinal direction and which is in engagement with the preferably continuous opening 6 in the carrier.
- the Fig. 11 to 15 represent a third embodiment for the rotationally fixed fixation of a slider 30 in the carrier 1.
- the difference from the previously described embodiments is that at least one of the transitions 11 on the carrier 1 and the transition 32 on the slider 30 each have a polyhedral profile.
- the transitions 11 are made from the horizontal top 10 to the side surfaces 7 as a first chamfer F1 with an in-circle IR, which is the radius of an imaginary inner circle of the polyhedral course of the transition 11 of the carrier 1, all side surfaces the transition 11 in its interior touches.
- the transition 32 between the top 12 and the side wall 8 of the slider 30, which rests in one of the transitions 11 of the carrier 1 at one of its inner side surfaces 7, is designed as a second chamfer F2 with a perimeter radius UR, which is the radius of the circumference of the polyhedral course of the transition 32 of the slider 30, which connects all vertices of the transition 32 with each other.
- the radius of circumference UR of the second chamfer F2 on the slider 30 is greater than the radius of the circle of the first chamfer F1 F1 on the carrier 1.
- Fig. 14 and 15 illustrated show the transition 11 of the carrier 1 in high magnification, in which an inner circle is shown with the radius of the circle IR, the horizontal top 10, the chamfer F1 formed as a transition 11 and one of the side surfaces 7 of the carrier 1 touches.
- Fig. 15 shows in the illustration the transition 32 of the slider 30 greatly enlarged, in which the perimeter is drawn with the perimeter radius UR, the corner points of the horizontal top 12, formed as a chamfer F2 transition 32 and the side surface 8 of the slider 30 connects to each other.
- the Fig. 16 to 18 illustrate a fourth embodiment for the rotationally fixed fixation of a slider 40 in the carrier 1, which in the design according to the Fig. 11 to 13 based.
- elastically deformable portions 34 are arranged on the upper side 33 of the slider 40, which are supported in a manner already described above in the transition 11 on the inside of the carrier 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Rolling Contact Bearings (AREA)
Abstract
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 am Träger festlegbar ist, umfasst, wobei zur bezüglich seiner Hochachse drehfesten Fixierung des Schiebers innerhalb des U-förmigen Trägers der Schieber mit mindestens einer Seitenwand an einer inneren Seitenfläche des Trägers anliegt.The present invention relates to a Oberwalzen- 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 by means of the slider relative to the carrier in the longitudinal direction displaceable on the carrier can be fixed comprises, wherein with respect to its vertical axis rotationally fixed fixing of the slider within the U-shaped support, the slide rests with at least one side wall on an inner side surface of the carrier.
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 Außenwänden 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 stretching field width by moving the slider in the carrier there must be some clearance between the plan rails and the outer walls of the slide, which may vary depending on the manufacturing accuracy. This variable game has a direct influence on the quality of 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 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 have an influence on the parallel attitude of the slider in the carrier.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of
Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.Advantageous developments are the subject of the dependent claims.
Gemäß dem Anspruch 1 wird vorgeschlagen, dass der Inkreisradius, der an der Innenseite des Trägers in mindestens einem Übergang der Oberseite zu der benachbarten Seitenfläche ausgebildet ist, kleiner ist als der Umkreisradius, der in einem der korrespondierenden Übergänge zwischen der Oberseite und der Seitenwand des Schiebers ausgebildet ist, und dass der Schieber Mittel aufweist, die mit dem Träger derart zusammenwirken, dass sich der Schieber bei der Festlegung mittels der Verstell- und Fixiervorrichtung im Träger selbsttätig gegen die zum Umkreisradius benachbarte innere Seitenfläche des Trägers anlegt. Die drehfeste Fixierung des Schiebers innerhalb des U-förmigen Trägers wird beim Festlegen durch die Verstellvorrichtung dadurch erreicht, dass sich beim Verschieben des Schiebers in Richtung einer der Seitenflächen des Trägers auf Grund des größeren Umkreisradius' im längsseitigen Übergang des Schiebers zwischen dem Schieber und dem Träger zwischen den Übergängen keine formschlüssige Verbindung einstellt, sondern dass die Seitenwand und die Oberseite des Schiebers an der inneren Seitenfläche und an der inneren Oberseite des Trägers anliegt. Hierdurch wird eine sichere parallele Führung des Schiebers und damit der im Schieber angeordneten Oberwalze zu ihrer korrespondierenden Unterwalze erreicht, die kostengünstig und mit geringem Fertigungsaufwand realisierbar ist. Auf die im Kennzeichen des Anspruches 1 beschriebene Weise wird durch die selbsttätige Anlage der Seitenwand des Schiebers an einer der inneren Seitenflächen des Trägers der Einfluss der Bauteiltoleranzen auf die Führung im Träger aufgehoben. Ebenso wird beim Festlegen vermieden, dass es zu einem Verkanten des Schiebers im Träger kommt, wodurch nach dem Verstellen der Position des Schiebers die Parallelität der Ober- und Unterwalzen zueinander eingehalten werden kann. Demgemäß können die Fertigungstoleranzen des Schiebers an den Seitenwänden sowie den Seitenflächen des Trägers erweitert werden, wodurch die Fertigung des Trägers und des Schiebers ebenfalls vereinfacht wird.According to
Hierzu können der Übergang des Trägers und der Übergang des Schiebers einen radial gekrümmten Verlauf aufweisen. Hierbei entsprechen der Inkreisradius beziehungsweise der Umkreisradius den Krümmungsradien der Verläufe der Übergänge.For this purpose, the transition of the carrier and the transition of the slide may have a radially curved course. In this case, the radius of incidence or the radius of circumference correspond to the radii of curvature of the transitions of the transitions.
Alternativ können der Übergang des Trägers und der Übergang des Schiebers einen polyedrischen Verlauf aufweisen.Alternatively, the transition of the carrier and the transition of the slider may have a polyhedral shape.
Vorzugsweise können der Übergang des Trägers und der Übergang des Schiebers, die einen polyedrischen Verlauf aufweisen, als Fasen mit unterschiedlicher Breite ausgeführt sein. Bei dieser Ausgestaltung entspricht der Inkreisradius dem Radius eines gedachten Inkreises des polyedrischen Verlaufs des Überganges des Trägers, der alle Seiten des Überganges in seinem Inneren berührt. Der Umkreisradius entspricht dem Radius eines gedachten Umkreises des polyedrischen Verlaufs des Überganges des Trägers, der alle Eckpunkte des polyedrischen Verlaufs des Überganges des Schiebers miteinander verbindet.Preferably, the transition of the carrier and the transition of the slide, which have a polyhedral course, be designed as bevels with different widths. In this embodiment, the radius of incidence corresponds to the radius of an imaginary inscribed circle of the polyhedral course of the transition of the carrier that touches all sides of the transition in its interior. The radius of circumference corresponds to the radius of an imaginary circumference of the polyhedral course of the transition of the carrier, which connects all vertices of the polyhedral course of the transition of the slide together.
In bevorzugter Weiterbildung kann das Mittel als ein Übergang des Schiebers ausgeführt sein, der einen geringeren Radius aufweist als der korrespondierende Übergang des Trägers. Dadurch kann der Übergang des Schiebers in dem Übergang des Trägers anliegen und von diesem geführt werden, wodurch der Schieber an der dem Übergang gegenüberliegenden inneren Seitenfläche des Trägers zur Anlage kommt.In a preferred embodiment, the means may be designed as a transition of the slider, which has a smaller radius than the corresponding transition of the carrier. As a result, the transition of the slider can rest in the transition of the carrier and be guided by this, whereby the slider comes to rest on the opposite inner side surface of the carrier to the plant.
Vorzugsweise kann das als Übergang ausgeführte Mittel zumindest teilweise scharfkantig ausgebildet sein.Preferably, the means designed as a transition may be at least partially sharp-edged.
Weiterhin kann das Mittel aus zumindest zwei an der Seitenwand endseitig angeordneten Abschnitten ausgebildet sein, die sich im Übergang an der Innenseite des Trägers abstützen.Furthermore, the means may be formed of at least two arranged on the side wall end portions arranged, which are supported in the transition to the inside of the carrier.
Alternativ kann das Mittel als mindestens ein auf der Oberseite des Schiebers angeordneter Vorsprung mit Anlaufschräge ausgeführt sein, der in eine sich in Längsrichtung an der Oberseite des Trägers erstreckende Öffnung hineinragt.Alternatively, the means may be designed as at least one projection arranged on the upper side of the slide and having a starting bevel which projects into an opening extending in the longitudinal direction on the upper side of the carrier.
Hierzu kann sich der mindestens eine Vorsprung über wenigstens 50 % der Längsausdehnung der Oberseite des Schiebers in dessen Längsrichtung erstrecken.
Ebenso können auf der Oberseite des Schiebers zwei zueinander beabstandete Vorsprünge vorgesehen sein, die in die sich in Längsrichtung an der horizontalen Oberseite des Trägers erstreckende Öffnung hineinragen.For this purpose, the at least one projection may extend over at least 50% of the longitudinal extent of the upper side of the slider in its longitudinal direction.
Likewise, two spaced-apart projections may be provided on the upper side of the slider, which protrude into the opening extending in the longitudinal direction on the horizontal upper side of the carrier.
Vorzugsweise kann der mindestens eine Vorsprung V-förmig ausgebildet sein.Preferably, the at least one projection may be V-shaped.
Weiterhin kann das Mittel aus mindestens zwei an der Oberseite des Schiebers endseitig angeordneten Abschnitten ausgebildet sein, die sich im Übergang des Trägers abstützen.Furthermore, the means may be formed of at least two sections arranged on the upper side of the slide end, which are supported in the transition of the carrier.
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 perspektivische Ansicht des Trägers gemäß
Fig. 1 ; - Fig. 3
- eine Schnittansicht des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 4
- eine Schnittansicht des Trägers und des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 5
- eine Detailansicht A gemäß
Fig. 4 ; - Fig. 6
- eine um 90° gegen den Uhrzeigersinn gedrehte Seitenansicht des Schiebers gemäß
Fig. 3 ; - Fig. 7
- eine Schnittansicht einer zweiten Ausführungsform des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 8
- eine Schnittansicht einer zweiten Ausführungsform des Trägers und des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 9
- eine Detailansicht B gemäß
Fig. 8 ; - Fig. 10
- eine um 90° gegen den Uhrzeigersinn gedrehte Seitenansicht des Schiebers gemäß
Fig. 7 ; - Fig. 11
- eine Schnittansicht einer dritten Ausführungsform des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 12
- eine Schnittansicht einer dritten Ausführungsform des Trägers und des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 13
- eine Detailansicht C gemäß
Fig. 12 ; - Fig. 14
- eine stark vergrößerte Ansicht eines Überganges am Träger gemäß
Fig. 13 ; - Fig. 15
- eine stark vergrößerte Ansicht eines Überganges am Schieber gemäß
Fig. 13 ; - Fig. 16
- eine Schnittansicht einer vierten Ausführungsform des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 17
- eine Schnittansicht einer vierten Ausführungsform des Trägers und des Schiebers entlang der Linie IV - IV gemäß
Fig. 1 ; - Fig. 18
- eine Detailansicht D gemäß
Fig. 17 .
- Fig. 1
- a side view of a U-shaped carrier of a top roller carrying and loading arm;
- Fig. 2
- a perspective view of the carrier according to
Fig. 1 ; - Fig. 3
- a sectional view of the slider along the line IV - IV according to
Fig. 1 ; - Fig. 4
- a sectional view of the carrier and the slider along the line IV - IV according to
Fig. 1 ; - Fig. 5
- a detailed view A according to
Fig. 4 ; - Fig. 6
- a 90 ° counterclockwise rotated side view of the slider according to
Fig. 3 ; - Fig. 7
- a sectional view of a second embodiment of the slide along the line IV - IV according to
Fig. 1 ; - Fig. 8
- a sectional view of a second embodiment of the carrier and the slider along the line IV - IV according to
Fig. 1 ; - Fig. 9
- a detailed view B according to
Fig. 8 ; - Fig. 10
- a 90 ° counterclockwise rotated side view of the slider according to
Fig. 7 ; - Fig. 11
- a sectional view of a third embodiment of the slider along the line IV - IV according to
Fig. 1 ; - Fig. 12
- a sectional view of a third embodiment of the carrier and the slider along the line IV - IV according to
Fig. 1 ; - Fig. 13
- a detailed view C according to
Fig. 12 ; - Fig. 14
- a greatly enlarged view of a transition to the carrier according to
Fig. 13 ; - Fig. 15
- a greatly enlarged view of a transition to the slider according to
Fig. 13 ; - Fig. 16
- a sectional view of a fourth embodiment of the slider along the line IV - IV according to
Fig. 1 ; - Fig. 17
- a sectional view of a fourth embodiment of the carrier and the slider along the line IV - IV according to
Fig. 1 ; - Fig. 18
- a detailed view D according to
Fig. 17 ,
Die Darstellungen in den
Der vorzugsweise U-förmige Schieber 2 weist, wie in
Bei dem im Betrieb befindlichen Streckwerk wird die Oberwalze durch das Belastungselement 5 mit einer Anpresskraft beaufschlagt, die von dem 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 Betätigen der auf der Oberseite 12 des Schiebers 2 befindlichen Verstellvorrichtung 4 um deren vertikale Achse, gesichert werden. Hierzu ist vorgesehen, dass zur bezüglich seiner Hochachse drehfesten Fixierung des Schiebers 2 dieser mit zumindest einer der Seitenwände 8, 9 an einer inneren vertikalen Seitenfläche 7 des Trägers 1 flächig anliegt.In the drafting system in operation, the top roller is acted upon by the
Dies wird gemäß dem in den
Weiterhin weist der Schieber 2 auf seiner Oberseite 12 Mittel auf, die mit dem Träger 1 derart zusammenwirken, dass der Schieber 2 bei der Festlegung durch eine entsprechende Betätigung der Verstellvorrichtung 4 im Träger 1 selbsttätig gegen die innere Seitenfläche 7 des Trägers 1 verschiebbar ist. Im dargestellten Ausführungsbeispiel ist das Mittel als der Übergang 13A zwischen der Oberseite 12 und der Seitenwand 9 des Schiebers 2 ausgebildet, der mit einem geringeren Radius ausgeführt ist als der korrespondierende Übergang 11 des Trägers 1. Insbesondere kann der Übergang 13A des Schiebers 2 einen so geringen Radius aufweisen, dass sich ein scharfkantiger Übergang 13A ausbildet, wie in
Die Abschnitte 14 des Schiebers 2 laufen beim Anziehen der Verstellvorrichtung 4 in den mit dem Inkreisradius IR versehenen Übergang 11 des Trägers 1. Dadurch wird der Schieber 2 mit seiner Seitenwand 8 gegen die dieser zugewandten inneren Seitenfläche 7 des Trägers 1 gedrückt. Auf Grund der unterschiedlichen Größen des Inkreisradius' IR und des Umkreisradius' UR in den Obergangen 11 des Trägers 1 beziehungsweise im Übergang 13B des Schiebers 2 liegt der Schieber 2 mit seinem Übergang 13B nicht in einem der Übergänge 11 des Trägers an, sondern stützt sich mit seiner Oberseite 12 und seiner Seitenwand 8 an der horizontalen Oberseite 10 und einer der Seitenfläche 7 des Trägers 1 ab. Mit Bezug auf die
Wie in
Die
Auf der Innenseite des Trägers 1 sind die Übergänge 11 von der horizontalen Oberseite 10 zu den Seitenflächen 7 als eine erste Fase F1 mit einem Inkreisradius IR ausgeführt, welcher der Radius eines gedachten Innenkreises des polyedrischen Verlaufs des überganges 11 des Trägers 1 ist, der alle Seitenflächen des Überganges 11 in seinem Inneren berührt. Der Übergang 32 zwischen der Oberseite 12 und der Seitenwand 8 des Schiebers 30, der in einem der Übergänge 11 des Trägers 1 an einer seiner inneren Seitenflächen 7 anliegt, ist als eine zweite Fase F2 mit einem Umkreisradius UR ausgeführt, welcher der Radius des Umkreises des polyedrischen Verlaufs des Überganges 32 des Schiebers 30 ist, der alle Eckpunkte des Überganges 32 miteinander verbindet. Dabei ist der Umkreisradius UR der zweiten Fase F2 am Schieber 30 größer als der Inkreisradius IR der ersten Fase F1 am Träger 1. Dies wird in den
Die
Claims (12)
- 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, 20, 30, 40) is arranged, which comprises a weighting element (5) and a holder (3) for receiving a top roller and an adjusting and fixing device (4), by means of which the slide (2, 20, 30, 40) can be displaced relative to the carrier (1) in the longitudinal direction and can be fixed on the upper side (10) of the carrier (1), wherein, for the non-rotatable fixing of the slide (2, 20, 30, 40) with respect to its vertical axis inside the U-shaped carrier (1), the slide (2, 20, 30, 40) rests, in the fixed state, with at least one of its side faces (8, 9, 21) on at least one inner side face (7) of the carrier (1),
characterised in that- the inradius (IR), which is formed on the inside of the carrier (1) in at least one transition (11) of the upper side (10) to the adjacent side face (7), is smaller than the circumradius (UR), which is formed in one of the corresponding transitions (13B, 22, 32) between the upper side (12, 23) and the side wall (8, 21) of the slide (2, 20, 30, 40), and- in that the slide (2, 20, 30, 40) has means (13A, 14, 24), which cooperate with the carrier (1) in such a way that the slide (2), during fixing by means of the adjusting and fixing device (4) in the carrier (1), automatically rests against the inner side face (7) of the carrier (1) adjacent to the circumradius (UR). - Top roller carrying and weighting arm according to claim 1, characterised in that the transition (11) of the carrier (1) and the transition (13B, 22) of the slide (2, 20) have a radially curved course.
- Top roller carrying and weighting arm according to claim 1, characterised in that the transition (11) of the carrier (1) and the transition (32) of the slide (30, 40) have a polyhedral course.
- Top roller carrying and weighting arm according to claim 3, characterised in that the transition (11) of the carrier (1) and the transition (32) of the slide (30, 40) are configured as bevels (F1, F2) with different widths.
- Top roller carrying and weighting arm according to any one of claims 1 to 4, characterised in that the means are configured as a transition (13A) of the slide (2, 20, 30, 40), which has a smaller radius than the corresponding transition of the carrier (1).
- Top roller carrying and weighting arm according to claim 5, characterised in that the transition (13A) is configured to be at least partially sharp-edged.
- Top roller carrying and weighting arm according to any one of claims 1 to 4, characterised in that the means are formed from at least two portions (14) which are arranged at the end on the side wall (9) and are supported in the transition (11) on the inside of the carrier (1).
- Top roller carrying and weighting arm according to any one of claims 1 to 4, characterised in that the means are configured as at least one projection (24) arranged on the upper side (23) of the slide (20) having stop chamfers (25) which projects into an opening (6) extending in the longitudinal direction on the upper side (10) of the carrier (1).
- Top roller carrying and weighting arm according to claim 8, characterised in that the at least one projection (24) extends over at least 50% of the upper side of the slide (20) in the longitudinal direction thereof.
- Top roller carrying and weighting arm according to claim 8, characterised in that two spaced-apart projections (24) are provided on the upper side (23) of the slide (20) and project into the opening (7) extending in the longitudinal direction on the upper side (10) of the carrier (1).
- Top roller carrying and weighting arm according to any one of claims 8 to 10, characterised in that the at least one projection (24) is V-shaped.
- Top roller carrying and weighting arm according to any one of claims 1 to 4, characterised in that the means are formed from at least two portions (14) which are arranged at the end on the upper side (23) of the slide (20) and are supported in the transition (11) of the carrier (1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009013828A DE102009013828A1 (en) | 2009-03-18 | 2009-03-18 | Upper roller carrying and loading arm for a drafting system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009013828 Previously-Filed-Application | 2009-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2230338A1 EP2230338A1 (en) | 2010-09-22 |
EP2230338B1 true EP2230338B1 (en) | 2012-05-09 |
Family
ID=42309694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10001356A Active EP2230338B1 (en) | 2009-03-18 | 2010-02-10 | Upper cylinder carrying and load arm for a stretching unit |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2230338B1 (en) |
JP (1) | JP5484970B2 (en) |
CN (1) | CN101838869B (en) |
AT (1) | ATE557120T1 (en) |
DE (1) | DE102009013828A1 (en) |
ES (1) | ES2387533T3 (en) |
RU (1) | RU2522075C2 (en) |
TW (1) | TWI422720B (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD115714B1 (en) * | 1974-04-08 | 1989-03-22 | Patzna Rud | UPPER ROLL LOADING AND LOADING ARM FOR SPINNING MACHINE RANGE |
JPS5617493Y2 (en) * | 1976-10-15 | 1981-04-23 | ||
DE3025032A1 (en) * | 1980-07-02 | 1982-01-21 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Top roller mounting for spinning frame drafting assembly - has spring-loaded saddle holding cantilevered roller |
DE3902859A1 (en) | 1989-02-01 | 1990-08-09 | Skf Textilmasch Komponenten | Top-roller supporting and loading arm for spinning-machine drawframes |
DE4243292C1 (en) * | 1992-12-21 | 1994-08-04 | Skf Textilmasch Komponenten | Drawing unit upper roller holder |
DE4336028C2 (en) * | 1993-10-22 | 1996-07-11 | Skf Textilmasch Komponenten | Drafting system for spinning machines |
DE4419125C2 (en) * | 1994-06-01 | 1996-12-12 | Skf Textilmasch Komponenten | Top roller carrier for a drafting system for spinning machines |
DE10227463C1 (en) * | 2002-06-20 | 2003-10-16 | Zinser Textilmaschinen Gmbh | Ring spinning machine with stretching mechanism and compression system, has pressure unit extended to mount drive roller of compression system |
JP2006316369A (en) * | 2005-05-11 | 2006-11-24 | Murata Mach Ltd | Roller contact-changing over apparatus of cradle in draft apparatus |
DE102005026792B4 (en) * | 2005-06-10 | 2020-10-22 | Saurer Spinning Solutions Gmbh & Co. Kg | Top roller support and loading arm |
CN200955078Y (en) * | 2006-08-19 | 2007-10-03 | 日照裕鑫动力有限公司 | Rocking arm special for close spinning spun yarn |
-
2009
- 2009-03-18 DE DE102009013828A patent/DE102009013828A1/en not_active Withdrawn
-
2010
- 2010-02-10 EP EP10001356A patent/EP2230338B1/en active Active
- 2010-02-10 AT AT10001356T patent/ATE557120T1/en active
- 2010-02-10 ES ES10001356T patent/ES2387533T3/en active Active
- 2010-03-15 CN CN2010101355667A patent/CN101838869B/en active Active
- 2010-03-16 TW TW099107540A patent/TWI422720B/en not_active IP Right Cessation
- 2010-03-16 JP JP2010059332A patent/JP5484970B2/en active Active
- 2010-03-17 RU RU2010110004/12A patent/RU2522075C2/en active
Also Published As
Publication number | Publication date |
---|---|
DE102009013828A1 (en) | 2010-09-23 |
EP2230338A1 (en) | 2010-09-22 |
JP2010216065A (en) | 2010-09-30 |
CN101838869A (en) | 2010-09-22 |
RU2010110004A (en) | 2011-09-27 |
TW201040338A (en) | 2010-11-16 |
TWI422720B (en) | 2014-01-11 |
CN101838869B (en) | 2013-08-28 |
ATE557120T1 (en) | 2012-05-15 |
ES2387533T3 (en) | 2012-09-25 |
RU2522075C2 (en) | 2014-07-10 |
JP5484970B2 (en) | 2014-05-07 |
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