EP0790099B1 - Apparatus and method for grinding card cloth - Google Patents

Apparatus and method for grinding card cloth Download PDF

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Publication number
EP0790099B1
EP0790099B1 EP97102526A EP97102526A EP0790099B1 EP 0790099 B1 EP0790099 B1 EP 0790099B1 EP 97102526 A EP97102526 A EP 97102526A EP 97102526 A EP97102526 A EP 97102526A EP 0790099 B1 EP0790099 B1 EP 0790099B1
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EP
European Patent Office
Prior art keywords
grinding
preclamping
grinding element
card cloth
press
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.)
Expired - Lifetime
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EP97102526A
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German (de)
French (fr)
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EP0790099A1 (en
Inventor
Ralph A. Graf
Stefan Geisser
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Graf und Cie AG
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Graf und Cie AG
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Publication of EP0790099A1 publication Critical patent/EP0790099A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B24B19/18—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli for grinding carding equipment, e.g. card-clothings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/36—Driving or speed control arrangements
    • D01G15/38—Driving or speed control arrangements for use during the grinding of card clothing

Definitions

  • the invention relates to a device and a method for grinding a set mounted on a support according to the preamble of claims 1 and 14.
  • Grinding devices of the type specified are For example, for grinding all-steel sets Carding and carding after re-garnishing and re-sharpening worn out sets used.
  • grinding devices become, for example, a grinding element used in the form of a slip ring on a ground transversely to the direction of pressure Hollow shaft is mounted.
  • the slip ring is set in rotation with the hollow shaft.
  • the slip ring is inserted into the hollow shaft built-in traversing spindle along the hollow shaft, i.e. Move across the direction of pressure.
  • the drive can over a pulley using an otherwise for the Card drive used motor or with a separate motor respectively.
  • a grinding device is also known, where the slip ring together with one for turning of the slip ring serving motor via toothed belt chains or a spindle drive is moved transversely to the direction of pressure.
  • the Invention based on the object, the known device to further develop that a set mounted on a carrier while reliably avoiding damage to them can be ground with high accuracy, as well as with specify an executable method of such a device.
  • the removal of the set can take place over the processing time to be controlled.
  • trimmings for example with one the reel of a card-wound card, that can be Area to be ground over a distance of more than one meter extend.
  • Such sets can be avoided of the use of an excessively large grinding element if the grinding element during the grinding process along a transverse to the direction of pressure Travel path is movable.
  • the contact pressure of the grinding element is special useful if the pretensioner together with the Grinding element can be moved along the travel path.
  • the grinding element is intended to be the grinding element articulated, preferably via a ball joint, to the To couple the pretensioner.
  • the removal of the set to be achieved by grinding can count on the number of traversings of the grinding area can be determined.
  • the grinding element and the pretensioning device and optionally also the stop element and / or the actuating element expediently arranged on a sled on a Carrier element fixed and along one of the travel determining guide of the carrier element is movable.
  • a such consisting of the carriage and the support member Unit can be easily using appropriate brackets can be mounted on different types of cards and cards.
  • the biasing device of the grinding device according to the invention can be particularly simple in the form of a coil spring be formed. It becomes a particularly compact one Structure reached when the coil spring on the one hand Abrasive element and on the other hand supported on the stop element.
  • a particularly reliable tracking of the grinding element can be achieved if one of the Guide of the grinding element in the pressing direction serving guide element is provided.
  • the grinding device shown in FIGS. 1 to 3 has one for grinding a set Grinding head 10 on.
  • the grinding head 10 is on a carriage 20 mounted, which is fixed to a support member 50 and along a guide 52 provided in the carrier element 50 in Direction of the double arrow 2 is movable. This is the Carriage 20 over a toothed belt 56 to a worm gear motor 54 coupled.
  • the direction of movement of the sled 20 can be arranged at end points of the guide 52 electronic limit switches (not shown) can be reversed. In this way, the grinding head 10 can reciprocate be traversed along a set.
  • the grinding head 10 has a screw 18 on Carriage 20 fixed floor element 12 and two approximately extending perpendicular to the floor element 12 and with screws 13 or 15 wall elements 14 and 16 fixed thereon. Between the wall elements 14 and 16 is made of a holder 24 and a cuboid grindstone 26 mounted thereon existing grinding element 22 arranged. How particularly clear 2, the wall elements extend 14 and 16 essentially along the guide 52 of the carrier element 50 and overlap those perpendicular to the guide 52 extending side surfaces of the grinding element 22. On this The wall elements 14 and 16 form a guide for the grinding element 22 arranged therebetween.
  • the grinding element 22 has a bore 11 of the bottom element 12 penetrating and received in the holder 24 Bolt 28 in the indicated by arrow 31 Slidable direction set on the base member 12.
  • the boundary surface of the base element facing away from the grinding element 22 12 forms a stop for the bolt head 29 of the bolt 28 and thus limits the displacement of the Sanding elements 22 in the direction indicated by arrow 31 Direction. This allows the grinding element to be in its rest position be fixed.
  • Between the floor element 12 and the holder 24 of the grinding element 22 is on the one hand on the Grinding element 22 facing boundary surface of the base element 12 and on the other hand on the floor element 12 facing Boundary surface of the holder 24 adjacent biasing device arranged in the form of a coil spring 30.
  • the grinding element 22 in the biased by the direction indicated by arrow 31.
  • the grindstone 26 can be traversed Movement of the grinding head 10 evenly against one Set (not shown) pressed and during the Grinding process in the direction indicated by arrow 31 be tracked.
  • the tracking of the grinding element and thus the removal at the clothing tips is determined by the number the traversing of the grinding element over the set certainly.
  • the grinding element 22 with one from a first lever 34, a second lever 36 and a connecting the second lever 36 to the bolt 28 Transmission element 33 existing actuator 32 against the biasing force of the coil spring 30 from be removed from the set.
  • the maximum pull-off distance is thereby from a slot 37 penetrating in the second lever 36 and screw bolts 38 accommodated in the wall element 16 limited.
  • This bolt 38 can also, if necessary cooperating with the bottom element 12, as a stop for the Fixation of the grinding element 22 used in the rest position become.
  • Fig. 4 is an arrangement for setting the in the 1 to 3 shown grinding device on the frame 60 of Tambours of a card.
  • the arrangement has one Screws 72 on the frame 60 fixed bracket 70.
  • angle profiles 74 are attached to which sled beds 76 are set.
  • sled beds 76 are Carrier carriage attached to wing 50 with wing nuts 80 78 added. With the sled beds 76 and the carrier sledges 78 assigned adjustment mechanisms 82, the wearer 50 and thus also the grinding element 22 in the direction of the set 84 of the drum are delivered.
  • the holder 70 is used to grind the clothing 84 together with the carrier element 50 and the grinding head 10 at stationary drum mounted on the frame 60.
  • the carrier element 50 by actuating the adjustment mechanisms 82 with the slides accommodated in the sled beds 76 78 delivered on both sides of the frame 60 until the grindstone 76 touches the clothing 84.
  • the grindstone 26 with the Actuator 32 subtracted from the set.
  • the drum can be brought up to its production speed and the carrier element or the grinding head depending on the desired Grinding intensity by a further 0.5 to 1 mm in the direction of the Set 84 are delivered.
  • the slide gear motor 54 i.e. after the start of traversal of the Grinding head 10 in the indicated by the double arrow 2
  • the grinding process can then give directions by releasing the actuating mechanism 32 can be started.
  • the second embodiment shown in FIG. 5 is similar to the first explained with reference to FIGS. 1 to 4 Embodiment. Therefore, in Fig. 5 for the parts which correspond to the parts indicated in FIGS. 1 to 4, uses the same reference numerals.
  • the one shown in FIG. 5 The embodiment of the invention is the grinding element 22, unlike the first embodiment, with a ball joint pin 28a on the base element 12 of the grinding head 10 fixed.
  • the ball joint pin 28a penetrates the Bore 11 of the base member 12, which is the grinding element 22 facing away from the boundary surface of the base element 12 a Stop for the ball joint pin head 29a of the ball joint pin 28a forms, and thus the displacement of the grinding element 22 limited in the direction indicated by arrow 31.
  • a ball 128 is provided at the end of the ball joint pin 28a, those in a complementary recess 124 of the holder 24 is added.
  • the grinding element 22 facing boundary surface of the bottom element 12 and on the other hand on the floor element 12 facing Boundary surface of the holder 24 adjacent coil spring 30 used.
  • the ball 128 and the complementary one Recess 124 made fixing the grinding element 22 on the ball joint pin 28a becomes the grinding element 22 enables a rotary movement indicated by the double arrows 31. With this rotary movement you can move along the traversing path the grinding head 10 occurring bumps be balanced.
  • the fourth shown in Figs. 6 and 7 Embodiment of the invention has three along the axis of rotation 250 of a cardboard reel arranged side by side Grinding elements 222.
  • Each of the grinding elements 222 is included a penetrating the bottom 212 of a support member 210 Ball joint pin 228 articulated to the carrier element 210.
  • Each of the grinding elements 222 is one for prestressing of the corresponding grinding element 222 in the direction indicated by the arrow 231 designated direction serving coil spring 230 assigned.
  • the coil springs are on the one hand on the corresponding grinding element 222 facing boundary surface of the floor 212 and on the other hand on the floor 212 facing Boundary surface of the corresponding grinding element 222 at.
  • the grinding elements 222 For processing the clothing wound on the drum are the grinding elements 222 together with the carrier element 210 back and forth along the axis of rotation 250 of the drum traversable, as indicated by the double arrow 202.
  • the carrier element 210 For this purpose, there is essentially one end of the carrier element 210 extending perpendicular to the axis of rotation 250 of the drum Elongated hole 214 formed in which an eccentric 256 is included.
  • the eccentric disc 256 is eccentric attached to an output shaft 258 of a geared motor 254. In this way, by rotating the eccentric disc 256 with the geared motor 254 that indicated by the double arrow 202 Traversing movement of the carrier element 210 and thus also of the grinding elements 222 are effected.
  • the carrier element 210 is together with the grinding elements 222 on both sides of the reel and on the card frame mounted feed carriage 278 fixed.
  • the carrier element 210 is with respect to the feed carriage 278 in the directions indicated by the double arrow 280 slidable so that it is independent of any actuation the knurled screws 279 are lifted off the set to be ground can be.
  • In the peel blocks are about perpendicular to the axis of rotation 250 and approximately perpendicular to the longitudinal axis of the slot 214 extending indentations 282 formed, in which eccentrically on a parallel to the axis of rotation 250 extending eccentric shaft 288 attached eccentric discs 286 are included.
  • a lever 290 is rotationally fixed at one end the eccentric shaft 288 mounted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Rectifiers (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Schleifen einer auf einem Träger aufgezogenen Garnitur nach dem Oberbegriff der Ansprüche 1 und 14.The invention relates to a device and a method for grinding a set mounted on a support according to the preamble of claims 1 and 14.

Schleifvorrichtungen der eingangs angegebenen Art werden beispielsweise zum Schleifen von Ganzstahlgarnituren auf Karden und Krempeln nach der Neugarnierung sowie zum Nachschärfen abgenützter Garnituren benutzt. Bei bekannten Schleifvorrichtungen wird dazu beispielsweise ein Schleifelement in Form eines Schleifringes eingesetzt, der auf einer sich quer zur Andruckrichtung erstreckenden geschliffenen Hohlwelle montiert ist. Zur Ausführung des Schleifvorgangs wird der Schleifring mit der Hohlwelle in Rotation versetzt. Gleichzeitig wird der Schleifring mittels einer in der Hohlwelle eingebauten Traversierspindel längs der Hohlwelle, d.h. quer zur Andruckrichtung verfahren. Der Antrieb kann dabei über eine Seilscheibe unter Verwendung eines ansonsten für den Kardenantrieb verwendeten Motors oder mit einem separaten Motor erfolgen. Daneben ist auch eine Schleifvorrichtung bekannt, bei der der Schleifring zusammen mit einem zum Drehen des Schleifringes dienenden Motor über Zahnriemenketten oder einen Spindelantrieb quer zur Andruckrichtung verfahren wird.Grinding devices of the type specified are For example, for grinding all-steel sets Carding and carding after re-garnishing and re-sharpening worn out sets used. At acquaintances For this purpose, grinding devices become, for example, a grinding element used in the form of a slip ring on a ground transversely to the direction of pressure Hollow shaft is mounted. To carry out the grinding process the slip ring is set in rotation with the hollow shaft. At the same time, the slip ring is inserted into the hollow shaft built-in traversing spindle along the hollow shaft, i.e. Move across the direction of pressure. The drive can over a pulley using an otherwise for the Card drive used motor or with a separate motor respectively. A grinding device is also known, where the slip ring together with one for turning of the slip ring serving motor via toothed belt chains or a spindle drive is moved transversely to the direction of pressure.

Bei den bekannten Schleifvorrichtungen erfolgt die Schleifelementzustellung und der Andruck des Schleifelementes gegen die Garnitur mit Spindeln, die an der Schleifvorrichtung oder einem Rahmen der Karde oder Krempel angebracht sind. Eine Steigerung des Zustellmaßes hat dabei eine entsprechende Erhöhung des Abtrages an den Garniturspitzen zur Folge. Zur Sicherstellung eines zuverlässigen Schleifvorganges wird dabei die erforderliche kontinuierliche Änderung des Zustellmaßes durch Betätigung der Spindeln unter visueller Kontrolle der Funkenwurflänge bestimmt. Bei legierten Garnituren, die beim Schleifen kein Funkenbild zeigen, kann die erforerliche Änderung des Zustellmaßes über eine Kontrolle des Schleifgeräusches bestimmt werden. Demnach hängt die Schleifqualität beim Betrieb bekannter Schleifvorrichtungen der eingangs genannten Art stark vom Können und der Erfahrung des Bedienungspersonals sowie vom Zustand des Schleifringes ab. Ferner erfordern die bekannten Schleifvorrichtungen die Anwesenheit des Bedienungspersonals während des gesamten Schleifvorganges. In the known grinding devices Grinding element infeed and the pressure of the grinding element against the set with spindles attached to the grinder or a frame of the card or card are attached. A Increasing the delivery dimension has a corresponding increase of the removal on the clothing tips. To make sure a reliable grinding process the required continuous change of the delivery dimension by operating the spindles under visual control of the Spark length determined. For alloyed sets that are used for Grinding no spark pattern can show the necessary change of the infeed dimension by checking the grinding noise be determined. Accordingly, the grinding quality depends when operating known grinding devices of the aforementioned Kind of strong on the skill and experience of the operators and the condition of the slip ring. Also require the known grinders the presence of the Operating personnel during the entire grinding process.

Vorrichtungen und Verfahren nach dem Oberbegriff der Ansprüche 1 und 14 sind aus der DE-PS 516 224 bekannt. Bei diesen bekannten Vorrichtungen wird zum Schleifen eines Kardenbeschlags ein Schleifelement gegen die Vorspannkraft einer Blattfeder an den stillstehenden Kardenbelag angelegt, dann der durch die Blattfeder auf den Kardenbelag ausgeübte Druck eingestellt und anschließend der Kardenbelag zusammen mit dem Schleifelement in Bewegung versetzt. Ähnliche Vorrichtungen sind auch in der US 4,984,395 A angegeben, wobei bei den in dieser Schrift beschriebenen Vorrichtungen die Vorspannkraft nicht durch eine Blattfeder, sondern durch eine wendelförmige Feder ausgeübt wird.Devices and methods according to the preamble of claims 1 and 14 are known from DE-PS 516 224. In these known devices is used for grinding a card fitting Grinding element against the biasing force of a leaf spring on the stationary card covering, then the leaf spring pressure applied to the card surface and then the card covering together with the grinding element in Moves. Similar devices are also in the US 4,984,395 A indicated, with those described in this document Do not use a pre-tensioning device Leaf spring but exerted by a helical spring becomes.

Dabei ergibt sich das Problem, daß der Kardenbelag beim Anlaufen der ihn tragenden Trommel aufgrund der zu diesem Zeitpunkt vorliegenden erhöhten Haftreibung einer starken Belastung ausgesetzt wird, welche zu einer Beschädigung einzelner Elemente des Kardenbelags führen kann.The problem arises that the card covering at Start of the drum carrying him due to this At the time of increased static friction of a heavy load exposed to damage to individuals Elements of the card covering.

Angesichts dieser Probleme im Stand der Technik liegt der Erfindung die Aufgabe zugrunde, die bekannte Vorrichtung so weiterzubilden, daß eine auf einen Träger aufgezogene Garnitur unter zuverlässiger Vermeidung einer Beschädigung derselben mit hoher Genauigkeit geschliffen werden kann, sowie ein mit einer derartigen Vorrichtung ausführbares Verfahren anzugeben.Given these problems in the prior art, the Invention based on the object, the known device to further develop that a set mounted on a carrier while reliably avoiding damage to them can be ground with high accuracy, as well as with specify an executable method of such a device.

Diese Aufgabe wird durch die Merkmale der Ansprüche 1 und 14 gelöst. Mit der erfindungsgemäßen Anordnung kann das Schleifen mit einem nicht rotierenden Schleifelement besonders einfach ausgeführt werden, indem das Schleifelement in einem vorbereitenden Schritt zunächst an die Garnitur angelegt wird, dann gegen die Vorspannkraft der Vorspanneinrichtung von der Garnitur abgezogen, der Träger in eine Umlaufbewegung versetzt, die Schleifvorrichtung dann in Richtung auf die zu bearbeitende Garnitur zugestellt und das Schleifelement schließlich zur Ausführung des eigentlichen Schleifvorganges freigegeben und von der Vorspanneinrichtung gegen die mit dem Träger umlaufende Garnitur angedrückt wird.This object is achieved by the features of claims 1 and 14 solved. With the arrangement according to the invention can do the grinding with a non-rotating grinding element can be carried out particularly easily by the grinding element in a preparatory step, first applied to the set is then against the biasing force of the biasing device subtracted from the set, the carrier in a circular motion offset, the grinder then towards the set to be machined and the grinding element finally to carry out the actual grinding process released and by the pretensioner against the with the Carrier all-round set is pressed.

Der Abtrag der Garnitur kann dabei über die Bearbeitungsdauer gesteuert werden.The removal of the set can take place over the processing time to be controlled.

Bei einigen Garnituren, beispielsweise bei einer auf dem Tambour einer Karde aufgezogenen Garnitur, kann sich das zu schleifende Gebiet über eine Strecke von mehr als einem Meter erstrecken. Derartige Garnituren können unter Vermeidung des Einsatzes eines übermäßig großen Schleifelementes geschliffen werden, wenn das Schleifelement während des Schleifvorganges längs eines quer zur Andruckrichtung verlaufenden Verfahrweges verfahrbar ist. Zur Sicherstellung einer gleichbleibenden Andruckkraft des Schleifelementes ist es besonders zweckmäßig, wenn die Vorspanneinrichtung zusammen mit dem Schleifelement längs des Verfahrweges verfahrbar ist.With some trimmings, for example with one the reel of a card-wound card, that can be Area to be ground over a distance of more than one meter extend. Such sets can be avoided of the use of an excessively large grinding element if the grinding element during the grinding process along a transverse to the direction of pressure Travel path is movable. To ensure a constant The contact pressure of the grinding element is special useful if the pretensioner together with the Grinding element can be moved along the travel path.

Zum Ausgleich längs des Verfahrweges auftretender Unebenheiten oder zur Vereinfachung der Zustellung eines feststehenden Schleifelementes ist daran gedacht, das Schleifelement gelenkig, vorzugsweise über ein Kugelgelenk, an die Vorspanneinrichtung zu koppeln.To compensate for unevenness along the travel path or to simplify the delivery of a fixed The grinding element is intended to be the grinding element articulated, preferably via a ball joint, to the To couple the pretensioner.

Zur Gewährleistung eines gleichmäßigen Schliffs der Garnitur über ihre gesamte Länge ist es besonders vorteilhaft, wenn das Schleifelement während des Schleifvorganges mehrfach längs des Verfahrweges verfahren wird. Dazu ist die Verfahrrichtung während des Schleifvorganges zweckmäßigerweise an Endpunkten des Verfahrweges umkehrbar. Zu diesem Zweck können beispielsweise an den Endpunkten des Verfahrweges angebrachte elektronische Endschalter eingesetzt werden.To ensure an even cut of the Clothing along its entire length, it is particularly advantageous if the grinding element repeatedly during the grinding process is traversed along the travel path. This is the direction of travel expediently during the grinding process End points of the travel path reversible. For this purpose you can for example attached to the end points of the travel path electronic limit switches are used.

Der durch das Schleifen zu erzielende Abtrag der Garnitur kann dabei über die Anzahl der Traversierungen des zu schleifenden Gebiets bestimmt werden.The removal of the set to be achieved by grinding can count on the number of traversings of the grinding area can be determined.

Dabei ist es im Hinblick auf längs der Garnitur auftretende Unebenheiten besonders zweckmäßig, wenn jedem dieser Schleifelemente eine eigene Vorspanneinrichtung zugeordnet ist, an die es vorzugsweise gelenkig gekoppelt ist.It is with regard to occurring along the set Bumps particularly useful if any of these Grinding elements assigned their own prestressing device to which it is preferably coupled in an articulated manner.

Zur Herstellung einer transportablen Baueinheit sind das Schleifelement und die Vorspanneinrichtung sowie wahlweise auch noch das Anschlagelement und/oder das Betätigungselement zweckmäßigerweise auf einem Schlitten angeordnet, der an einem Trägerelement festgelegt und längs einer den Verfahrweg bestimmenden Führung des Trägerelementes verfahrbar ist. Eine derartige aus dem Schlitten und dem Trägerelement bestehende Baueinheit kann mittels entsprechender Halterungen problemlos an verschiedenartige Karden und Krempel montiert werden.To produce a transportable unit the grinding element and the pretensioning device and optionally also the stop element and / or the actuating element expediently arranged on a sled on a Carrier element fixed and along one of the travel determining guide of the carrier element is movable. A such consisting of the carriage and the support member Unit can be easily using appropriate brackets can be mounted on different types of cards and cards.

Zur Ausrichtung einer derartigen Vorrichtung bezüglich der zu schleifenden Garnitur ist es dabei besonders vorteilhaft, wenn das Trägerelement zusammen mit dem Schlitten in der Andruckrichtung verstellbar ist.To align such a device with respect the set to be ground, it is particularly advantageous if the carrier element together with the slide in the Pressure direction is adjustable.

Die Vorspanneinrichtung der erfindungsgemäßen Schleifvorrichtung kann besonders einfach in Form einer Schraubenfeder gebildet werden. Dabei wird ein besonders kompakter Aufbau erreicht, wenn sich die Schraubenfeder einerseits am Schleifelement und andererseits am Anschlagelement abstützt.The biasing device of the grinding device according to the invention can be particularly simple in the form of a coil spring be formed. It becomes a particularly compact one Structure reached when the coil spring on the one hand Abrasive element and on the other hand supported on the stop element.

Eine besonders zuverlässige Nachführung des Schleifelementes kann erreicht werden, wenn auf dem Schlitten ein der Führung des Schleifelementes in Andruckrichtung dienendes Führungselement vorgesehen ist.A particularly reliable tracking of the grinding element can be achieved if one of the Guide of the grinding element in the pressing direction serving guide element is provided.

Zur Verminderung langer Traversierwege ist auch daran gedacht, längs des zu schleifenden Gebietes mehrere Schleifelemente anzubringen, die jeweils längs eines Teils des zu schleifenden Gebietes traversiert werden. Dabei kann jedem Schleifelement eine eigene Vorspanneinrichtung zugeordnet werden, an die es, vorzugsweise gelenkig, gekoppelt ist.To reduce long traversing paths is also part of it thought of several grinding elements along the area to be ground to attach, each along part of the to traversing area are traversed. Anyone can Grinding element can be assigned its own prestressing device, to which it is coupled, preferably in an articulated manner.

Nachstehend wird die Erfindung unter Bezugnahme auf die Zeichnung, auf die hinsichtlich aller in der Beschreibung nicht näher herausgestellten Einzelheiten ausdrücklich verwiesen wird, erläutert.The invention will now be described with reference to FIG the drawing referring to all in the description expressly referred to details not specified is explained.

In der Zeichnung zeigt:

  • Fig. 1 eine teilweise geschnittene Seitenansicht einer ersten Ausführungsform der Schleifvorrichtung,
  • Fig. 2 eine teilweise geschnittene Draufsicht auf die Schleifvorrichtung nach Fig. 1,
  • Fig. 3 eine längs der Schnittebene III-III in Fig. 1 genommene Schnittansicht der Schleifvorrichtung nach Fig. 1,
  • Fig. 4 eine Anordnung zum Anbringen der erfindungsgemäßen Schleifvorrichtung an den Rahmen eines Tambours einer Karde.
  • Fig. 5 einen Ausschnitt einer der Fig. 1 entsprechenden Schnittansicht einer zweiten Ausführungsform einer erfindungsgemäßen Schleifvorrichtung,
  • Fig. 6 eine teilweise geschnittene Seitenansicht einer dritten Ausführungsform einer erfindungsgemäßen Schleifvorrichtung und
  • Fig. 7 eine längs der Schnittebene IV-IV in Fig. 6 genommene Schnittansicht der dritten Ausführungsform der Erfindung.
    • The drawing shows:
  • 1 is a partially sectioned side view of a first embodiment of the grinding device,
  • 2 is a partially sectioned plan view of the grinding device of FIG. 1,
  • 3 shows a sectional view of the grinding device according to FIG. 1 taken along the section plane III-III in FIG. 1,
  • Fig. 4 shows an arrangement for attaching the grinding device according to the invention to the frame of a reel of a card.
  • 5 shows a detail of a sectional view corresponding to FIG. 1 of a second embodiment of a grinding device according to the invention,
  • Fig. 6 is a partially sectioned side view of a third embodiment of a grinding device according to the invention and
  • Fig. 7 is a sectional view taken along the section plane IV-IV in Fig. 6 of the third embodiment of the invention.

    • Die in den Fig. 1 bis 3 dargestellte Schleifvorrichtung weist einen zum Schleifen einer Garnitur dienenden Schleifkopf 10 auf. Der Schleifkopf 10 ist auf einem Schlitten 20 montiert, der an einem Trägerelement 50 festgelegt und längs einer in dem Trägerelement 50 vorgesehenen Führung 52 in Richtung des Doppelpfeils 2 verfahrbar ist. Dazu ist der Schlitten 20 über einem Zahnriemen 56 an einen Schneckengetriebemotor 54 gekoppelt. Die Bewegungsrichtung des Schlittens 20 kann mittels an Endpunkten der Führung 52 angeordneten elektronischen Endschaltern (nicht dargestellt) umgekehrt werden. Auf diese Weise kann der Schleifkopf 10 hin- und hergehend längs einer Garnitur traversiert werden.The grinding device shown in FIGS. 1 to 3 has one for grinding a set Grinding head 10 on. The grinding head 10 is on a carriage 20 mounted, which is fixed to a support member 50 and along a guide 52 provided in the carrier element 50 in Direction of the double arrow 2 is movable. This is the Carriage 20 over a toothed belt 56 to a worm gear motor 54 coupled. The direction of movement of the sled 20 can be arranged at end points of the guide 52 electronic limit switches (not shown) can be reversed. In this way, the grinding head 10 can reciprocate be traversed along a set.

    Der Schleifkopf 10 weist ein mit Schrauben 18 am Schlitten 20 festgelegtes Bodenelement 12 sowie zwei sich etwa senkrecht zum Bodenelement 12 erstreckende und mit Schrauben 13 bzw. 15 daran festgelegte Wandelemente 14 und 16 auf. Zwischen den Wandelementen 14 und 16 ist ein aus einem Halter 24 und einem darauf angebrachten quaderförmigen Schleifstein 26 bestehendes Schleifelement 22 angeordnet. Wie besonders deutlich der Fig. 2 zu entnehmen ist, erstrecken sich die Wandelemente 14 und 16 im wesentlichen längs der Führung 52 des Trägerelementes 50 und übergreifen die senkrecht zur Führung 52 verlaufenden Seitenflächen des Schleifelementes 22. Auf diese Weise bilden die Wandelemente 14 und 16 eine Führung für das dazwischen angeordnete Schleifelement 22.The grinding head 10 has a screw 18 on Carriage 20 fixed floor element 12 and two approximately extending perpendicular to the floor element 12 and with screws 13 or 15 wall elements 14 and 16 fixed thereon. Between the wall elements 14 and 16 is made of a holder 24 and a cuboid grindstone 26 mounted thereon existing grinding element 22 arranged. How particularly clear 2, the wall elements extend 14 and 16 essentially along the guide 52 of the carrier element 50 and overlap those perpendicular to the guide 52 extending side surfaces of the grinding element 22. On this The wall elements 14 and 16 form a guide for the grinding element 22 arranged therebetween.

    Das Schleifelement 22 ist mit einem eine Bohrung 11 des Bodenelementes 12 durchdringenden und im Halter 24 aufgenommenen Schraubbolzen 28 in der durch den Pfeil 31 bezeichneten Richtung verschiebbar am Bodenelement 12 festgelegt. Die dem Schleifelement 22 abgewandte Begrenzungsfläche des Bodenelementes 12 bildet einen Anschlag für den Schraubbolzenkopf 29 des Schraubbolzens 28 und begrenzt so die Verschiebung des Schleifelements 22 in der durch den Pfeil 31 bezeichneten Richtung. Dadurch kann das Schleifelement in seiner Ruhestellung fixiert werden. Zwischen dem Bodenelement 12 und dem Halter 24 des Schleifelementes 22 ist eine einerseits an der dem Schleifelement 22 zugewandten Begrenzungsfläche des Bodenelementes 12 und andererseits an der dem Bodenelement 12 zugewandten Begrenzungsfläche des Halters 24 anliegende Vorspanneinrichtung in Form einer Schraubenfeder 30 angeordnet. Mit dieser Vorspanneinrichtung wird das Schleifelement 22 in der durch den Pfeil 31 bezeichneten Richtung vorgespannt. Auf diese Weise kann der Schleifstein 26 während einer traversierenden Bewegung des Schleifkopfes 10 gleichmäßig gegen eine Garnitur (nicht dargestellt) angedrückt und während des Schleifvorgangs in der durch den Pfeil 31 bezeichneten Richtung nachgeführt werden. Die Nachführung des Schleifelementes und damit der Abtrag an den Garniturspitzen wird durch die Anzahl der Traversierungen des Schleifelementes über die Garnitur bestimmt.The grinding element 22 has a bore 11 of the bottom element 12 penetrating and received in the holder 24 Bolt 28 in the indicated by arrow 31 Slidable direction set on the base member 12. The boundary surface of the base element facing away from the grinding element 22 12 forms a stop for the bolt head 29 of the bolt 28 and thus limits the displacement of the Sanding elements 22 in the direction indicated by arrow 31 Direction. This allows the grinding element to be in its rest position be fixed. Between the floor element 12 and the holder 24 of the grinding element 22 is on the one hand on the Grinding element 22 facing boundary surface of the base element 12 and on the other hand on the floor element 12 facing Boundary surface of the holder 24 adjacent biasing device arranged in the form of a coil spring 30. With this biasing device, the grinding element 22 in the biased by the direction indicated by arrow 31. On in this way the grindstone 26 can be traversed Movement of the grinding head 10 evenly against one Set (not shown) pressed and during the Grinding process in the direction indicated by arrow 31 be tracked. The tracking of the grinding element and thus the removal at the clothing tips is determined by the number the traversing of the grinding element over the set certainly.

    Vor Beginn des Schleifvorgangs kann das Schleifelement 22 mit einem aus einem ersten Hebel 34, einem zweiten Hebel 36 und einem den zweiten Hebel 36 mit dem Schraubbolzen 28 verbindenden Übertragungselement 33 bestehenden Betätigungselement 32 gegen die Vorspannkraft der Schraubenfeder 30 von der Garnitur abgezogen werden. Die maximale Abziehstrecke wird dabei von einem ein Langloch 37 im zweiten Hebel 36 durchdringenden und im Wandelement 16 aufgenommenen Schraubbolzen 38 begrenzt. Dieser Schraubbolzen 38 kann auch, gegebenenfalls zusammenwirkend mit dem Bodenelement 12, als Anschlag für die Fixierung des Schleifelementes 22 in der Ruhestellung verwendet werden.Before starting the grinding process, the grinding element 22 with one from a first lever 34, a second lever 36 and a connecting the second lever 36 to the bolt 28 Transmission element 33 existing actuator 32 against the biasing force of the coil spring 30 from be removed from the set. The maximum pull-off distance is thereby from a slot 37 penetrating in the second lever 36 and screw bolts 38 accommodated in the wall element 16 limited. This bolt 38 can also, if necessary cooperating with the bottom element 12, as a stop for the Fixation of the grinding element 22 used in the rest position become.

    In Fig. 4 ist eine Anordnung zum Festlegen der in den Fig. 1 bis 3 dargestellten Schleifvorrichtung am Rahmen 60 des Tambours einer Karde dargestellt. Die Anordnung weist eine mit Schrauben 72 am Rahmen 60 festgelegte Halterung 70 auf. An der Halterung 70 sind Winkelprofile 74 befestigt, an denen Schlittenbetten 76 festgelegt sind. In den Schlittenbetten 76 sind mit Flügelmuttern 80 am Träger 50 befestigte Trägerschlitten 78 aufgenommen. Mit den Schlittenbetten 76 und den Trägerschlitten 78 zugeordneten Verstellmechanismen 82 kann der Träger 50 und damit auch das Schleifelement 22 in Richtung auf die Garnitur 84 des Tambours zugestellt werden.In Fig. 4 is an arrangement for setting the in the 1 to 3 shown grinding device on the frame 60 of Tambours of a card. The arrangement has one Screws 72 on the frame 60 fixed bracket 70. At the Bracket 70, angle profiles 74 are attached to which sled beds 76 are set. In the sled beds 76 are Carrier carriage attached to wing 50 with wing nuts 80 78 added. With the sled beds 76 and the carrier sledges 78 assigned adjustment mechanisms 82, the wearer 50 and thus also the grinding element 22 in the direction of the set 84 of the drum are delivered.

    Zum Schleifen der Garnitur 84 wird die Halterung 70 zusammen mit dem Trägerelement 50 und dem Schleifkopf 10 bei stillstehendem Tambour an den Rahmen 60 montiert. Danach wird das Trägerelement 50 durch Betätigung der Verstellmechanismen 82 mit den in den Schlittenbetten 76 aufgenommenen Schlitten 78 beidseits des Rahmens 60 zugestellt bis der Schleifstein 76 die Garnitur 84 berührt. Dann wird der Schleifstein 26 mit dem Betätigungselement 32 von der Garnitur abgezogen. Anschließend kann der Tambour auf seine Produktionsdrehzahl gebracht werden und das Trägerelement bzw. der Schleifkopf je nach gewünschter Schleifintensität um weitere 0,5 bis 1 mm in Richtung auf die Garnitur 84 zugestellt werden. Nach Auslösung des Schlittengetriebemotors 54, d.h. nach Beginn der Traversierung des Schleifkopfs 10 in den durch den Doppelpfeil 2 bezeichneten Richtungen kann dann der Schleifvorgang durch Lösen des Betätigungsmechanismus 32 begonnen werden.The holder 70 is used to grind the clothing 84 together with the carrier element 50 and the grinding head 10 at stationary drum mounted on the frame 60. After that the carrier element 50 by actuating the adjustment mechanisms 82 with the slides accommodated in the sled beds 76 78 delivered on both sides of the frame 60 until the grindstone 76 touches the clothing 84. Then the grindstone 26 with the Actuator 32 subtracted from the set. Subsequently the drum can be brought up to its production speed and the carrier element or the grinding head depending on the desired Grinding intensity by a further 0.5 to 1 mm in the direction of the Set 84 are delivered. After triggering the slide gear motor 54, i.e. after the start of traversal of the Grinding head 10 in the indicated by the double arrow 2 The grinding process can then give directions by releasing the actuating mechanism 32 can be started.

    Unter der Wirkung der Vorspannkraft der Feder 30 wird der Schleifstein 26 während des Schleifvorganges gleichmäßig in Richtung des Pfeils 31 gegen die Garnitur 84 gedrückt, bis die gewünschte Schleifintensität erreicht ist. Zum Erhalt des gewünschten Garniturabtrags traversiert der Schleifkopf 2 bis 10mal über die Garnitur 84. Zum Anpassen der Schleifintensität können je nach Garniturtyp Vorspanneinrichtungen mit unterschiedlichen Vorspannkräften eingesetzt werden. Dazu kann beispielsweise ein Austausch der Schraubenfeder 30 vorgenommen werden.Under the action of the biasing force of the spring 30 the grindstone 26 evenly during the grinding process pressed in the direction of arrow 31 against the clothing 84 until the desired grinding intensity has been reached. To receive the grinding head traverses 2 to 10 times over the set 84. To adjust the grinding intensity Depending on the clothing type, pretensioning devices with different Preload forces are used. For example an exchange of the coil spring 30 made become.

    Die in Fig. 5 dargestellte zweite Ausführungsform der Erfindung ähnelt der anhand der Fig. 1 bis 4 erläuterten ersten Ausführungsform. Daher werden in Fig. 5 für die Teile, die den in den Fig. 1 bis 4 angegebenen Teilen entsprechen, dieselben Bezugszeichen verwendet. Bei der in Fig. 5 dargestellten Ausführungsform der Erfindung ist das Schleifelement 22, anders als bei der ersten Ausführungsform, mit einem Kugelgelenkbolzen 28a am Bodenelement 12 des Schleifkopfs 10 festgelegt. Dazu durchdringt der Kugelgelenkbolzen 28a die Bohrung 11 des Bodenelements 12, wobei die dem Schleifelement 22 abgewandte Begrenzungsfläche des Bodenelementes 12 einen Anschlag für den Kugelgelenkbolzenkopf 29a des Kugelgelenkbolzens 28a bildet, und so die Verschiebung des Schleifelementes 22 in der durch den Pfeil 31 bezeichneten Richtung begrenzt.The second embodiment shown in FIG The invention is similar to the first explained with reference to FIGS. 1 to 4 Embodiment. Therefore, in Fig. 5 for the parts which correspond to the parts indicated in FIGS. 1 to 4, uses the same reference numerals. The one shown in FIG. 5 The embodiment of the invention is the grinding element 22, unlike the first embodiment, with a ball joint pin 28a on the base element 12 of the grinding head 10 fixed. For this purpose, the ball joint pin 28a penetrates the Bore 11 of the base member 12, which is the grinding element 22 facing away from the boundary surface of the base element 12 a Stop for the ball joint pin head 29a of the ball joint pin 28a forms, and thus the displacement of the grinding element 22 limited in the direction indicated by arrow 31.

    An dem dem Kugelgelenkbolzenkopf 29a entgegengesetzten Ende des Kugelgelenkbolzens 28a ist eine Kugel 128 vorgesehen, die in einer komplementär dazu ausgebildeten Ausnehmung 124 des Halters 24 aufgenommen ist. Als Vorspanneinrichtung wird auch bei dieser Ausführungsform eine einerseits an der dem Schleifelement 22 zugewandten Begrenzungsfläche des Bodenelements 12 und andererseits an der dem Bodenelement 12 zugewandten Begrenzungsfläche des Halters 24 anliegende Schraubenfeder 30 benutzt. Durch die mit der Kugel 128 und der dazu komplementären Ausnehmung 124 hergestellte Festlegung des Schleifelementes 22 am Kugelgelenkbolzen 28a wird dem Schleifelement 22 eine durch die Doppelpfeile 31 angedeutete Drehbewegung ermöglicht. Mit dieser Drehbewegung können längs des Traversierweges des Schleifkopfs 10 auftretende Garniturunebenheiten ausgeglichen werden.At the opposite of the ball joint bolt head 29a A ball 128 is provided at the end of the ball joint pin 28a, those in a complementary recess 124 of the holder 24 is added. As a pretensioner also in this embodiment, on the one hand on the Grinding element 22 facing boundary surface of the bottom element 12 and on the other hand on the floor element 12 facing Boundary surface of the holder 24 adjacent coil spring 30 used. With the ball 128 and the complementary one Recess 124 made fixing the grinding element 22 on the ball joint pin 28a becomes the grinding element 22 enables a rotary movement indicated by the double arrows 31. With this rotary movement you can move along the traversing path the grinding head 10 occurring bumps be balanced.

    Die in den Fig. 6 und 7 dargestellte vierte Ausführungsform der Erfindung weist drei längs der Drehachse 250 eines Tambours einer Karde nebeneinander angeordnete Schleifelemente 222 auf. Jedes der Schleifelemente 222 ist mit einem den Boden 212 eines Trägerelementes 210 durchdringenden Kugelgelenkbolzen 228 gelenkig an das Trägerelement 210 gekoppelt. Jedem der Schleifelemente 222 ist eine zur Vorspannung des entsprechenden Schleifelementes 222 in der durch den Pfeil 231 bezeichneten Richtung dienende Schraubenfeder 230 zugeordnet. Die Schraubenfedern liegen einerseits an der dem entsprechenden Schleifelement 222 zugewandten Begrenzungsfläche des Bodens 212 und andererseits an der dem Boden 212 zugewandten Begrenzungsfläche des entsprechenden Schleifelementes 222 an.The fourth shown in Figs. 6 and 7 Embodiment of the invention has three along the axis of rotation 250 of a cardboard reel arranged side by side Grinding elements 222. Each of the grinding elements 222 is included a penetrating the bottom 212 of a support member 210 Ball joint pin 228 articulated to the carrier element 210. Each of the grinding elements 222 is one for prestressing of the corresponding grinding element 222 in the direction indicated by the arrow 231 designated direction serving coil spring 230 assigned. The coil springs are on the one hand on the corresponding grinding element 222 facing boundary surface of the floor 212 and on the other hand on the floor 212 facing Boundary surface of the corresponding grinding element 222 at.

    Zur Bearbeitung der auf den Tambour aufgezogenen Garnitur sind die Schleifelemente 222 zusammen mit dem Trägerelement 210 längs der Drehachse 250 des Tambours hin und her gehend traversierbar, wie durch den Doppelpfeil 202 angedeutet. Dazu ist an einem Ende des Trägerelementes 210 ein sich im wesentlichen senkrecht zur Drehachse 250 des Tambours erstreckendes Langloch 214 gebildet, in dem eine Exzenterscheibe 256 aufgenommen ist. Die Exzenterscheibe 256 ist exzentrisch an einer Abtriebswelle 258 eines Getriebemotors 254 befestigt. Auf diese Weise kann durch Drehen der Exzenterscheibe 256 mit dem Getriebemotor 254 die durch den Doppelpfeil 202 angedeutete Traversierbewegung des Trägerelementes 210 und damit auch der Schleifelemente 222 bewirkt werden.For processing the clothing wound on the drum are the grinding elements 222 together with the carrier element 210 back and forth along the axis of rotation 250 of the drum traversable, as indicated by the double arrow 202. For this purpose, there is essentially one end of the carrier element 210 extending perpendicular to the axis of rotation 250 of the drum Elongated hole 214 formed in which an eccentric 256 is included. The eccentric disc 256 is eccentric attached to an output shaft 258 of a geared motor 254. In this way, by rotating the eccentric disc 256 with the geared motor 254 that indicated by the double arrow 202 Traversing movement of the carrier element 210 and thus also of the grinding elements 222 are effected.

    Das Trägerelement 210 ist zusammen mit den Schleifelementen 222 an beidseits des Tambours angeordneten und am Kardenrahmen montierten Zustellschlitten 278 festgelegt. Durch Betätigung von den Zustellschlitten 278 zugeordneten Rändelschrauben 279 kann das Trägerelement 210 und damit auch die Schleifelemente 222 in Richtung auf die Garnitur des Tambours zugestellt und davon abgezogen werden, wie durch die Doppelpfeile 280 angedeutet.The carrier element 210 is together with the grinding elements 222 on both sides of the reel and on the card frame mounted feed carriage 278 fixed. By Actuation of knurled screws assigned to the feed slide 278 279, the carrier element 210 and thus also the Grinding elements 222 in the direction of the drum set delivered and subtracted, as by the double arrows 280 indicated.

    Das Trägerelement 210 ist bezüglich der Zustellschlitten 278 in den durch den Doppelpfeil 280 angedeuteten Richtungen verschiebbar, so daß es unabhängig von einer Betätigung der Rändelschrauben 279 von der zu schleifenden Garnitur abgehoben werden kann. Dazu sind am Boden 212 des Trägerelementes 210 beidseits des Tambours mit Einbuchtungen 282 versehene Abziehblöcke 284 vorgesehen. In den Abziehblöcken sind sich etwa senkrecht zur Drehachse 250 und etwa senkrecht zur Längsachse des Langlochs 214 erstreckende Einbuchtungen 282 ausgebildet, in denen exzentrisch an einer sich parallel zur Drehachse 250 erstreckenden Exzenterwelle 288 befestigte Exzenterscheiben 286 aufgenommen sind. Ein Hebel 290 ist drehfest an einem Ende der Exzenterwelle 288 montiert. Wenn die Exzenterscheiben 286 mit der Exzenterwelle 288 in der durch den Pfeil 292 angedeuteten Richtung aus der in den Fig. 6 und 7 dargestellten Stellung gedreht werden, wird das Trägerelement 212 und damit auch die Schleifelemente 222 in der durch den Pfeil 294 angedeuteten Richtung von der Garnitur des Tambours abgehoben. Auf diese Weise können sämtliche Schleifelemente 222 durch einfache Drehung der Exzenterwelle 288 gleichzeitig von der Tambourgarnitur abgezogen werden. Damit wird ein in dem bereits für die erste Ausführungsform der Erfindung erläuterten Schleifverfahren ähnliches Schleifverfahren ermöglicht, bei dem die Schleifelemente 222 zunächst durch Betätigung der Rändelschrauben 279 zugestellt werden, bis sie die Garnitur des Tambours berühren, dann durch Drehen der Exzenterwelle 288 mit dem Hebel 290 von der Garnitur abgezogen werden, wonach der Tambour auf seine Produktionsdrehzahl gebracht wird und das Trägerelement bzw. der Schleifkopf je nach gewünschter Schleifintenstität um weitere 0,5 bis 1 mm in Richtung auf die Garnitur zugestellt werden, worauf schließlich der Schleifbetrieb durch Auslösen des Getriebemotors 254 und Lösen des Hebels 250 aufgenommen wird.The carrier element 210 is with respect to the feed carriage 278 in the directions indicated by the double arrow 280 slidable so that it is independent of any actuation the knurled screws 279 are lifted off the set to be ground can be. For this purpose there are 212 of the carrier element at the bottom 210 peeling blocks provided with indentations 282 on both sides of the drum 284 provided. In the peel blocks are about perpendicular to the axis of rotation 250 and approximately perpendicular to the longitudinal axis of the slot 214 extending indentations 282 formed, in which eccentrically on a parallel to the axis of rotation 250 extending eccentric shaft 288 attached eccentric discs 286 are included. A lever 290 is rotationally fixed at one end the eccentric shaft 288 mounted. If the eccentric discs 286 with the eccentric shaft 288 in the direction indicated by the arrow 292 Direction from the position shown in FIGS. 6 and 7 are rotated, the carrier element 212 and thus also the grinding elements 222 in the direction indicated by the arrow 294 Direction lifted off the drum set. On in this way, all grinding elements 222 can be easily Rotation of the eccentric shaft 288 simultaneously from the Drum set can be removed. So that becomes one in which explained for the first embodiment of the invention Grinding process enables a similar grinding process at which the grinding elements 222 first by actuating the knurled screws 279 to be delivered until the garnish of Touch the reel, then turn the eccentric shaft 288 with the lever 290 are withdrawn from the set, after which the Tambour is brought up to its production speed and that Carrier element or the grinding head depending on the desired Grinding intensity by a further 0.5 to 1 mm in the direction of the Garnish to be delivered, whereupon finally the grinding shop by releasing the gear motor 254 and releasing the lever 250 is included.

    Durch Verwendung mehrerer längs der Drehachse 250 des Tambours nebeneinander angeordneter Schleifelemente 222 kann die Garnitur des Tambours mit einem Traversierweg von nur etwa 10 mm vollständig geschliffen werden. Dazu können anstelle der in Fig. 6 dargestellten drei Schleifelemente 222 etwa 20 Schleifelemente längs der Drehachse 250 des Tambours vorgesehen sein.By using several along the axis of rotation 250 of the Drums of abrasive elements 222 arranged next to one another can the drum set with a traverse path of only about 10 mm are completely sanded. You can do this instead of Three grinding elements 222 shown in FIG. 6 are about 20 Grinding elements provided along the axis of rotation 250 of the drum his.

    Claims (17)

    1. Apparatus for grinding a card cloth (84) mounted onto a carrier, comprising at least one grinding element (22; 222) and a delivery element (76, 78, 82; 278, 279) which serves to press the grinding element (22; 222) against the cloth (84) and which comprises a preclamping device which serves automatic delivery of the grinding element (22; 222) in the pressure direction during a grinding process, characterised by an operating element (32; 286, 288, 290) which is operated independently from the delivery element (76, 78, 82; 278, 279) and by means of which the grinding element (22; 222) is pulled off the card cloth (84) in a direction opposing the preclamping direction.
    2. Apparatus according to Claim 1, characterised by a stop element (12, 38) which serves to fix the at least one grinding element (22) in an idle position.
    3. Apparatus according to one of the above claims, characterised in that at least one grinding element (22; 222) is during a grinding process movable along a processing path which extends transversely to the press-on direction.
    4. Apparatus according to Claim 3, characterised in that the preclamping device (30; 230) is movable together with the at least one grinding element (22; 222) along the processing path.
    5. Apparatus according to one of the above claims, characterised in that the at least one grinding element (22; 222) is hinged to the preclamping device (30, 230), preferably via a ball joint.
    6. Apparatus according to Claim 3 to 5, characterised in that the processing direction is during the grinding process reversible at the end points of the processing path.
    7. Apparatus according to one of Claims 3 to 6, characterised in that the at least one grinding element (22), the preclamping device (30) and the stop element (12, 38) and the operating element (32) are arranged on a carriage (20) which is secured to a support element (5) and movable along a guide (52) of the carrier element (50) which determines the movement path.
    8. Apparatus according to Claim 7, characterised in that the carrier element (50) is together with the carriage (20) adjustable in the press-on directions (31).
    9. Apparatus according to one of the above claims, characterised in that the preclamping device comprises a helical spring (30).
    10. Apparatus according to Claim 2 and 9, characterised in that the helical spring (30) supports itself on the one hand against the at least one grinding element (22) and on the other hand on the stop element (12).
    11. Apparatus according to one of Claims 8 to 10, characterised in that a guide element (14, 16) which serves to guide the at least one grinding element (22) in the press-on direction is provided on the carriage.
    12. Apparatus according to one of the above claims, characterised in that a plurality of grinding elements (222) is arranged along the area to be ground.
    13. Apparatus according to Claim 12, characterised in that each grinding element (222) is associated with a preclamping device (230) to which it is connected, preferably hinged.
    14. Method for grinding card cloth (84) mounted onto a carrier in which a grinding element (22) is pushed during a grinding process with a preferably elastically deformable preclamping device against the card cloth and automatically guided in the press-on direction, characterised in that the grinding element (22) is in a preparatory stage placed onto the card cloth (84), then pulled off the card cloth against the pretensional load, and preferably against the pretensional load of the preclamping device, and the support is rotated and the grinding element is then released to carry out a grinding process and pushed by the preclamping device against the card cloth (84) which rotates with the support.
    15. Method according to Claim 14, characterised in that the movement of the grinding element in the preclamping direction is defined by a stop element (12).
    16. Method according to one of Claims 14 or 15, characterised in that the grinding element is during a grinding process moved along a processing path which extends transversely to the press-on direction.
    17. Method according to Claim 16, characterised in that the movement direction is reversed at the end points of the processing path.
    EP97102526A 1996-02-15 1997-02-17 Apparatus and method for grinding card cloth Expired - Lifetime EP0790099B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19605635A DE19605635C2 (en) 1996-02-15 1996-02-15 Device for grinding sets
    DE19605635 1996-02-15

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    EP0790099A1 EP0790099A1 (en) 1997-08-20
    EP0790099B1 true EP0790099B1 (en) 2001-05-02

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    EP (1) EP0790099B1 (en)
    JP (1) JP3825124B2 (en)
    KR (1) KR100427899B1 (en)
    BR (1) BR9700979A (en)
    DE (2) DE19605635C2 (en)
    ES (1) ES2106718T3 (en)
    GR (2) GR970300033T1 (en)
    ID (1) ID15953A (en)
    IN (1) IN188530B (en)
    PT (1) PT790099E (en)
    TR (1) TR199700116A3 (en)
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    DE102005005200B4 (en) 2005-02-03 2021-09-16 Trützschler GmbH & Co Kommanditgesellschaft Device on a spinning preparation machine, in which the clothing of a roller is opposite a machine element
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    ID15953A (en) 1997-08-21
    KR970061443A (en) 1997-09-12
    IN188530B (en) 2002-10-12
    DE59703456D1 (en) 2001-06-07
    GR970300033T1 (en) 1997-10-31
    ES2106718T1 (en) 1997-11-16
    BR9700979A (en) 1998-09-01
    KR100427899B1 (en) 2004-07-19
    GR3036266T3 (en) 2001-10-31
    TW380073B (en) 2000-01-21
    DE19605635A1 (en) 1997-08-28
    US5797788A (en) 1998-08-25
    TR199700116A2 (en) 1997-09-21
    JPH10548A (en) 1998-01-06
    EP0790099A1 (en) 1997-08-20
    JP3825124B2 (en) 2006-09-20
    PT790099E (en) 2001-08-30
    ES2106718T3 (en) 2001-06-16
    DE19605635C2 (en) 1998-05-28
    TR199700116A3 (en) 1997-09-21

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