EP2218813A1 - Needle holder for a textile machine - Google Patents
Needle holder for a textile machine Download PDFInfo
- Publication number
- EP2218813A1 EP2218813A1 EP09152726A EP09152726A EP2218813A1 EP 2218813 A1 EP2218813 A1 EP 2218813A1 EP 09152726 A EP09152726 A EP 09152726A EP 09152726 A EP09152726 A EP 09152726A EP 2218813 A1 EP2218813 A1 EP 2218813A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needle
- groove
- needle holder
- grooves
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004753 textile Substances 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 description 17
- 238000009950 felting Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
Definitions
- the invention relates to a needle holder for a textile machine with a needle board.
- a needle holder serves to receive needles, such as felting needles or fork needles, and may be used in textile machines, e.g. Felting machines are used.
- a needle holder with a needle board is for example from the DE 31 05 358 A1 known.
- the grooves provided in the groove board have a dovetail-shaped cross-section, wherein the groove width seen transversely to the direction of the grooves in the region of the top of the needle board is smaller than the diameter of a foot portion of a needle which projects into the groove in the position of use of the needle. This is to prevent accidental dropping out of the needle from the needle board.
- a needle holder with the features of claim 1.
- the needle foot which is arranged at one end of the needles, has a holding means, which protrudes into the needle inserting the needle into the corresponding hole passing through the groove.
- the holding means ensures that the needle is held securely in the needle board. It serves to hold the needle in the needle board in the direction of its longitudinal axis and in the direction of the central axis of the bore and for specifying the rotational position of the needle about its longitudinal axis.
- the diameter of the bores which receives a region of the needle shaft is greater than an average value of the groove width or greater than the groove width in the region of the groove base. This makes it possible to arrange the grooves closer together, without affecting the stability of the remaining between the grooves Nutenstege in the needle board.
- the holes of two adjacent grooves can be seen offset in the direction of the grooves arranged to each other.
- the center axes of the holes are arranged in the direction of the grooves spaced from each other. This makes it possible to arrange adjacent grooves even closer together.
- desired puncture patterns can be achieved in the textile material to be processed.
- a groove spacing in the width direction of the groove transverse to the direction of the grooves between the groove center of one of the grooves and the groove center of one of the immediately adjacent grooves is at most as large as the diameter of the holes.
- the grooves one of the rectangular Form have different cross-sectional shape.
- the groove width may increase starting from the groove base toward the top side of the needle board, as a result of which the base of the web is widened between two flanks of adjacent grooves delimiting a groove.
- the storage of the holding means of the needles in the grooves can be improved if an edge is formed on the groove base in the direction of the groove and the edges adjacent to the edge surfaces of the groove base or groove flanks obliquely to the central axis of the holes. As a result, tolerances between the holding means and groove can be compensated. It is also possible to provide a trapezoidal, triangular or U-shaped contoured cross section for the grooves. Such cross-sectional shapes can be produced inexpensively using commercially available tools.
- the needle board is made in particular of a non-elastic material, preferably of metal.
- the grooves can be introduced by milling in the top of the needle board.
- a needle particularly suitable for use in the needle holder has along a longitudinal axis a working portion to which a lower and an upper shank portion coaxially adjoin each other, with the needle butt facing the upper shank portion in a transverse direction transverse to the longitudinal axis of the needle Essentially rectilinearly extending holding means connects.
- the retaining means may extend away from the longitudinal axis of the needle in one direction. In particular applications, it is advantageous if the retaining means extends away from the longitudinal axis of the needle to two opposite sides.
- the holding means has its own longitudinal central axis, which forms the normal of the longitudinal central axis of the needle.
- the diameter of the upper shaft portion is both greater than the diameter of the lower shaft portion, as well as greater than the average value of the width of the holding means.
- the width of the holding means is determined in the direction of the normal, the longitudinal center axis of the holding means and defines a width direction.
- a needle 15 for use in a textile machine is shown schematically.
- the needle 15 is, for example, a felting needle or fork for a felting machine.
- the needle 15 is shown in its position of use, in which it is mounted in a needle holder 45 of the felting machine, which has a needle board 46 and a needle bar 47.
- the needle 15 has a working section 17 extending along a longitudinal axis 16, on which the needle point 18 is arranged.
- the needle tip 18 represents the first free end 19 of the needle 15.
- a lower shaft portion 20 connects, which extends coaxially to the longitudinal axis 16 and coaxial with the working portion 17.
- the lower shaft portion 20 has a circular cross-section whose diameter D is greater than the diameter C of the working portion 17.
- the diameter of a shaft portion 20 or the working portion 17 of the needle 15 corresponds to the smallest possible diameter of a coaxial with the longitudinal axis 16 arranged cylindrical surface of a circular cylinder, the completely surrounds respective shaft portion. In this case, no parts of the relevant section protrude through the cylinder jacket surface. Because of the different diameters of the working section 17 and the lower shaft section 20, these two sections 17, 20 are connected to each other via a conical first transition region 21, which widens continuously from the working section 17 to the lower shaft section 20.
- the outer surface of the first transition region 21 corresponds to the lateral surface of a truncated cone.
- the transition area 21 also be executed edgeless.
- the cross section of the lower shaft portion 20 is circular. Its diameter D corresponds to the diameter of a needle blank from which the needle 15 is made.
- the needle 15 has an upper shank portion 25 whose diameter E is greater than the diameter D of the lower shank portion 20.
- the upper shank portion 25 may be circular in shape, but deviating from this, any other cross-sectional shapes are possible. as exemplified in the FIGS. 8a to 8f are shown.
- Fig. 1 is formed between the lower shaft portion 20 and the upper shaft portion 25, a step 26 with a coaxial with the longitudinal axis 16 extending annular surface.
- the transition is at the in Fig. 2 embodiment shown realized by a second transition region 41, which widens conically from the lower shaft portion 20 to the upper shaft portion 25.
- the second transition region 41 can be configured analogously to the first transition region 21.
- the upper shaft section 25 is adjoined by a needle foot 30, which has a holding means 32 extending essentially rectilinearly.
- This holding means 32 extends along a transverse direction 31 which is arranged transversely to the longitudinal axis 16 of the needle 15.
- the holding means 32 is connected via a curved foot connection 33 of the needle butt 30 with the upper shaft portion 25.
- the holding means 32 may also be directly connected to the upper shaft portion 25, as for example from the Figures 6a and 6b can be seen.
- at least the holding means 32 of the needle butt 30 may also have a deviating from a circular shape cross-section, with exemplary cross-sectional shapes in the FIGS. 7a to 7f are illustrated.
- the width of the holding means 32 is measured in a width direction 34 transverse to the longitudinal axis 16 and transverse to the transverse direction 31.
- the mean value of the width of the holding means 32 of the needle 15 is smaller than the diameter E of the upper shaft portion 25 Fig. 1
- a second step 40 which forms an annular surface coaxial to the longitudinal axis 16, is provided between the foot connection 33 and the upper shaft section 25.
- a third transition region 42 is present, the diameter decreases continuously, starting from the upper shaft portion 25 to the adoptedanitati 33 out.
- This third transition region 42 can also be designed in accordance with the first and second transition regions 21, 41.
- the upper shaft portion 25 and the needle base 30 form an L-shaped holding portion of the needle in which it is supported on the needle holder 45.
- this Holding area in the modified embodiment of the needle 15 according to the Figures 6a and 6b T-shaped.
- the retaining means 32 sits directly on the upper shaft portion 25 and extends, starting from the longitudinal axis 16 in two opposite directions beyond the upper shaft portion 25 also.
- the holding means 32 extends from a first free end 35 'in a straight line through the longitudinal axis 16 through to a second free end 35 ".
- the shape of the needle butt 30 according to the Figures 6a and 6b from a needle blank is possible for example by tensile, compressive or shear forming.
- the holding means 32 may be given any other cross-sectional shape than the cross-sectional shape of the needle blank.
- the needle butt 30 has a symmetrical shape to a plane of symmetry defined by the longitudinal axis 16 and the width direction 34.
- FIGS. 7a to 7f Some possible cross-sectional shapes for the holding means 32 are in the FIGS. 7a to 7f shown.
- the mean value of the width and in particular the width of the holding means 32 at any point in the width direction 34 is smaller than the diameter E of the upper shaft portion 25.
- the cross section of the holding means 32 may be oval (racetrack-shaped) or elliptical executed.
- the cross section of the holding means 32 is designed as a polygon and, for example, as a regular octagon.
- the corners of such a polygon can also be rounded, for example, provided with a radius, as shown by the example of a rectangle in Fig. 7c is shown.
- the Cross-section of the holding means 32 has a triangular shape.
- Fig. 7c are also after the triangular cross-sectional design Fig. 7d provide the corner areas with radii.
- the radii at the corners of the cross section after Fig. 7e are significantly smaller than the one in Fig. 7d shown embodiment.
- Fig. 7d are after the triangle-like cross section Fig. 7e the sides of the triangle are arched outward.
- FIGS. 8a to 8f Possible cross-sectional shapes are exemplified in FIGS FIGS. 8a to 8f shown.
- this cross-sectional shape deviating from the circular cross-sectional shape, contact points 60 arranged distributed over its circumference are formed on the upper shaft section 25, which contact points lie on a common cylinder jacket surface 61 about the longitudinal axis 16 of the needle.
- the upper shaft portion 25 is formed around the longitudinal axis 16 of the needle in the form of a spiral (not shown), the plant locations 60 follow this spiral along the cylinder jacket surface 61 of the shaft portion 25.
- the diameter of this cylinder jacket surface 61 corresponds to the diameter E of the upper shaft portion 25th
- the abutment sites 60 are regularly distributed in the preferred embodiments of the cross-sectional shapes of the upper shaft portion 25 as seen in the circumferential direction, being arranged parallel to the longitudinal axis 16 of the needle.
- the number of contact points 60 and their shape depends on the choice of the contour of the cross section. If the contact points 60 lie over a larger surface area on the cylinder jacket surface 61, then two opposing contact points 60 may suffice.
- three, four or more abutment points 60 are regularly distributed around the circumference on the outer surface 67 of the upper shaft portion 25 is provided.
- the diameter of the cylinder jacket surface 61, on which the contact points 60 are arranged, corresponds approximately to the diameter
- the contact points 60 are therefore the surface areas of the upper shaft portion 25, with which this rests against the inner surface 56 of the bore 51, which thus represents a counter bearing surface 56 for the abutment points 60.
- a recess 65 is formed in each case.
- the radial distance of the outer surface region of the upper shaft section 25 is everywhere lower in the region of a recess 65 between two abutment points 60 than at the abutment point 60.
- only the abutment points 60 are located on the common cylinder jacket surface 61.
- the upper shaft portion 25 may, for example, a polygonal, in particular rectangular or as in Fig. 8a shown to have a square cross-section. All corners of the polygon have the same distance to the longitudinal axis 16 of the needle, so that 16 longitudinal edges along the longitudinal axis 16 formed as abutment points 60 at the upper shaft portion 25 in the longitudinal direction.
- FIG. 8b an oval (race track shaped) or elliptical cross-sectional shape of the upper shaft portion 25 is illustrated.
- the abutments 60 are formed in the region of the main vertexes.
- the oval or the ellipse is flattened, so that the upper shaft portion 25 on two opposite sides in the region of the side vertex plane outer surface portions 67 which represent the recesses 65 between the two abutment points 60.
- the cross-section of the upper shaft portion 25 may also be contoured like a star or a cross, as shown for example in FIGS Figures 8c and 8d evident.
- the star-shaped cross-sectional contour has a plurality of star tips 68, at the radially outermost ends of the contact points 60 are formed. Between two adjacent star tips 68, the recesses 65 are provided.
- Fig. 8c has the star-shaped cross-sectional contour of the upper shaft portion 25 evenly distributed over the circumference arranged star tips 68 which extend from a central region about the longitudinal axis 16 to the outside and thereby tapering towards its radially outer end.
- star tips 68 are rounded, so that preferably no sharp edge formed at the contact points 60.
- the outer surface portions 67 of the recess 65 is V-like concave inwardly curved.
- the transition between the star tips 68 is edgeless. In a modification of the illustrated embodiment, it is also possible to provide more than four star tips 68.
- the abutment points 60 are convexly curved radially outwardly, wherein the curvature in particular has the same radius as the cylinder jacket surface 61.
- the recesses 65 between the abutment points 60 are formed by concavely curved outer surface portions 67 of the upper shaft portion 25, seen in cross section of the upper shaft portion 25 have a circular arc-like course.
- FIGS. 8e and 8f result in a triangular cross-sectional shape for the upper shaft portion 25.
- the three outer surface portions 67 of the upper shaft portion 25 are convexly curved outwardly.
- the tips of the triangle are also provided with a radius so that the entire outer surface of the upper shaft portion 25 is configured without sharp edges and corners is.
- the tips form the abutment points 60 and lie on the common cylinder jacket surface 61.
- the curved outer surface portions 67 between the abutment points 60 represent the recesses 65.
- the recesses 65 are formed by three distributed over the circumference regularly arranged plane outer surface portions 67 of the upper shaft portion 25. Between these plan outer surfaces are seen in the circumferential direction, the contact points 60 are provided, which are curved according to the example with a radius to the outside. The radius of the abutment points 60 is at most as large as the radius of the cylinder jacket surface 61 and in the preferred embodiment according to Fig. 8f smaller than the radius of the common cylinder jacket surface 61.
- the described embodiments of the cross-sectional shape of the upper shaft portion 25 may be of the in the FIGS. 8a to 8f deviate preferred embodiments shown.
- the corners and edges of a polygonal cross-section can be arched or provided with radii, so that a corner-free and edge-free outer surface of the upper shaft section 25 is formed.
- the symmetry of the cross-sectional shape of the upper shaft portion 25 is chosen in all embodiments so that the center of gravity of the upper shaft portion 25 lies on the longitudinal axis 16.
- FIGS. 3 and 4 the needle board 46 of the needle holder 45 is illustrated schematically.
- a needle board arranged above the textile surface material to be processed is assumed as an example. in principle Such a needle board may additionally or alternatively also be arranged below the surface material.
- the needle holder 45 has a needle board 46 and a needle bar 47.
- open grooves 48 are provided to an upper side 44, which extend at a distance parallel to each other in one direction.
- Grooves 48 have opposing groove flanks 55 adjacent their open side, bounding groove 48 in groove width direction 92, which coincides with the width direction 34 of needle 15 when the needle is inserted into needle board 46.
- the two groove flanks 55 are connected to each other via a groove bottom 70.
- Two adjacent grooves 48 are each separated by a distance in the form of a web 49. From the top 44 to an opposite bottom 50, the needle board 46 is penetrated by a plurality of holes 51. In the area of the upper side 44, the bores 51 open into the grooves 48. The central axis 52 of the holes 51 passes through the relevant groove 48 in Nutbreitencardi 92 approximately in the middle. Along each groove 48 a plurality of bores 51 are provided.
- the connected via a common groove 48 holes 51 are seen in the direction of the groove 48 in the preferred embodiment of the needle board 46 arranged at regular intervals.
- the holes 51 of two adjacent grooves can be arranged offset to one another in the direction of the grooves 48, as shown for example in FIG Fig. 3 in the two grooves 48 shown on the right is the case.
- the central axes 52 of the bores 51 of a groove 48 are arranged in the direction of the grooves 48 at a distance from the central axes 52 of the bores 51 of the respective other groove 48.
- the groove width B is measured transversely to the transverse direction 31 in the width direction 34.
- the groove width B may change depending on the point of consideration on the groove flank 55 or on the groove base 70, which depends on the selected cross-sectional shape of the groove 48. While with rectangular groove cross section to Fig. 4 the groove width B of a groove 48 at each point of the groove has the same value, then the groove width B changes in the in the FIGS. 5a to 5f proposed cross-sectional shapes of the groove 48 depending on where in a depth direction 91 of the groove 48 seen parallel to the direction of the central axes 52 of the holes 51, the groove width B is measured. At least the groove width B in the region of the groove base 70 is smaller than the diameter E of the upper shaft portion 25 and the bores 51.
- the mean value of the groove width B of a groove 48 is smaller than the diameter E of the holes 51.
- the mean value of the groove width B is at most as large as half the diameter E of the upper shank portion 25 and the bore 51, respectively.
- the webs 49 in the region of each bore 51 of a web 48 adjacent to the groove 48 has a cylindrical portion-shaped recess 73.
- the width of the web 49 seen in the width direction 34 and its wall thickness W change depending on the viewed in the transverse direction 31 point.
- the wall thickness W of the web 49 is measured at right angles to a tangent which is applied to the groove flank 55 delimiting this web 49 at the point in question.
- the minimum wall thickness W of a web 49 occurs in the preferred embodiment of the needle board 46 in the region of the recesses 73.
- a groove spacing A between the groove center in the groove width direction 92 of one of the grooves 48 and the groove center of an immediately adjacent groove 48 is at most as large as the diameter E, provided in the needle board 46 holes 51.
- a tangent 75, the between these two grooves 48 in the direction of the grooves 48 is applied to the holes 51 of one of the grooves 48, also represent the tangent to the holes 51 of the other groove 48 or cut these holes.
- Such a selected groove spacing A between two juxtaposed grooves 48 is preferably provided only at a portion of the grooves 48 of the Nutenbretts 46.
- Other immediately adjacent grooves 48 have a larger groove spacing A.
- the groove distances A between a groove 48 and the two immediately adjacent thereto grooves 48 may be of different sizes.
- the groove cross section may be in the shape of the in Fig. 4 shown rectangular shape, as shown in the FIGS. 5a to 5f is shown schematically by way of example. This makes it possible, on the one hand, to change the cross section of the existing between two grooves 48 web 49 accordingly, thereby giving this a sufficiently high stability, on the other hand, the groove cross-section can be adapted in shape to the cross-sectional contour of the holding means 32 of the needle 15 ,
- the groove width B in the transition region between the two groove flanks 55 and the groove bottom 70 is smaller than the diameter of the bore 51.
- the mean value of the groove width B the can change depending on the point of consideration on the groove flanks 55 or the groove base 70 is smaller than the diameter E of the bore 51 in all embodiments.
- the groove width B can be smaller at any point than the diameter E of the bore 51, as this at the groove cross-sections according to the Figures 5a, 5b, 5d and 5f the case is.
- the FIGS. 5c and 5e corresponds to the maximum groove width B just the diameter E of the bore 51st
- Fig. 5a the groove cross-section U-shaped with a groove-like groove bottom 70 is configured.
- the two groove flanks 55 are aligned parallel to the direction of the central axis 52 of the bore 51.
- a modified variant of this is in the Fig. 5f illustrated in which the groove bottom 70 of two surface portions 70a, 70b is formed.
- the two surface portions 70a, 70b are inclined at an inclination angle to the central axis 52 and the groove depth direction 91, respectively.
- the angle of inclination may be, for example, about 60 °.
- the two surface portions 70a, 70b abut each other to form a transverse edge 31 along the entire groove 48 extending edge, and include the double inclination angle.
- FIG. 5b and 5c Another groove shape with trapezoidal cross section is in Fig. 5b and 5c can be seen, in which the groove base 70 extends transversely to the central axis 52 in the width direction 34.
- the two groove flanks 55 extend obliquely to the central axis 52 of the bore 51 Fig. 5c
- the width B of the groove 48 on the upper side 44 of the needle board 46 corresponds to the diameter of the bore 51. Since the two groove flanks 55, starting from the upper side 44 of the needle board 46, are inclined in the direction of the central axis 52 of the bore 51, the middle one Width of the groove 48 smaller than the diameter of the bore 51.
- Fig. 5d and 5e show triangular groove cross-sections
- the groove bottom 70 is formed by an extending in the direction of the groove 48 edge in the transition of the two groove flanks 55.
- the groove flanks 55 are arranged in a V-shape relative to one another and form an acute angle.
- the angle between the groove bottom 70 and the groove flanks 55 may vary in the case of a trapezoidal groove cross-section in the range of 45 ° to 85 °.
- the angle which the two groove flanks 55 enclose with one another on the groove base 70 may vary in the case of a triangular groove cross-section in the range between 70 ° and 130 °.
- the groove 48 may also have a dovetail-like shape.
- the cross section of the groove 48 may be formed congruent to the cross section of the holding means 32.
- the needle board 46 is made in the preferred embodiment of a non-elastic material, preferably made of metal.
- the grooves 48 can be easily introduced by milling in a metal plate. Before or after the holes 51 can be introduced.
- the needle holder 45 is provided here for a felting machine, not shown.
- the needle board 46 is arranged substantially horizontally. Through each hole 51, a needle 15 is inserted through, so that the upper shaft portion 25 with its abutment points 60 at the Inner surface of the respective bore 51 abuts, which represents a counter-bearing surface 56 for the abutment points 60.
- the needle 15 is mounted radially to its longitudinal axis 16 in the needle board 46. Since the working sections 17 of the needles do not have to be configured symmetrically with respect to the longitudinal axis 16, the result is a desired rotational position about the longitudinal axis 16 which the needles 15 are to occupy in the needle holder 45.
- the holding means 32 of the needle butt 30 of the needles 15 is arranged in the groove 48, which passes in the region of the upper side 44 through the bore 51, in which the respective needle 15 is located.
- the groove flanks 55 of the groove 48 serve, so to speak, as a rotation stop for the holding means 32, so that the needle 15 can not turn around its longitudinal axis 16 or only according to the play between the holding means 32 and the groove flanks 55.
- the holding means 32 is seen in the position of use of the needle 15 in the width direction 34 without play in the groove 48.
- the working direction during felting is aligned parallel to the longitudinal axis 16 of the needles 15.
- On the upper side 44 of the needle board 46 of the needle bar 47 is placed so that the needles 15 are fixed in the working direction parallel to the longitudinal axis 16, as shown schematically in the Figures 1 and 2 can be seen.
- the needle holder 45 and the needles 15 held therein moves up and down in the working direction and processes the textile material arranged on a support not shown in detail.
- the invention relates to a needle holder 45 for a textile machine, with a needle board 46 in which a plurality of mutually parallel grooves 48 are provided on an upper side 44. Along each groove 48 are a plurality of spaced, the needle board 46 completely penetrating Boreholes 51 arranged.
- the diameter E of the bores 51 is greater than an average value of the groove width B or greater than the groove width B in the region of the groove bottom 70.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Nonwoven Fabrics (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Die Erfindung betrifft eine Nadelhalterung für eine Textilmaschine mit einem Nadelbrett. Eine solche Nadelhalterung dient zur Aufnahme von Nadeln, beispielsweise Filznadeln oder Gabelnadeln und kann in Textilmaschinen wie z.B. Filzmaschinen eingesetzt werden.The invention relates to a needle holder for a textile machine with a needle board. Such a needle holder serves to receive needles, such as felting needles or fork needles, and may be used in textile machines, e.g. Felting machines are used.
Eine Nadelhalterung mit einem Nadelbrett ist beispielsweise aus der
Ausgehend davon ist es eine Aufgabe der vorliegenden Erfindung, ein Nadelbrett einer Nadelhalterung zu schaffen, das eine hohe Nadeldichte ermöglicht.On this basis, it is an object of the present invention to provide a needle board of a needle holder which allows a high needle density.
Diese Aufgabe wird durch eine Nadelhalterung mit den Merkmalen des Patentanspruches 1 gelöst. In Gebrauchslage der Nadeln sind diese in die Bohrungen des Nadelbretts eingesetzt, wodurch sie quer zur Mittelachse der Bohrungen fixiert gelagert sind. Der Nadelfuß, der an einem Ende der Nadeln angeordnet ist, weist ein Haltemittel auf, der bei in das Nadelbrett eingesetzter Nadel in die die entsprechende Bohrung durchsetzende Nut hineinragt. Das Haltemittel stellt sicher dass die Nadel sicher im Nadelbrett gehalten ist. Er dient zur Halterung der Nadel im Nadelbrett in Richtung ihrer Längsachse und in Richtung der Mittelachse der Bohrung sowie zur Vorgabe der Drehlage der Nadel um ihre Längsachse. Bei der erfindungsgemäßen Nadelhalterung wird eine große Nadeldichte erreicht, in dem der Durchmesser der Bohrungen, welche einen Bereich des Nadelschaftes aufnimmt, größer ist als ein Mittelwert der Nutbreite oder größer als die Nutbreite im Bereich des Nutgrunds. Dadurch ist es möglich, die Nuten dichter nebeneinander anzuordnen, ohne die Stabilität der zwischen den Nuten verbleibenden Nutenstege im Nadelbrett zu beeinträchtigen.This object is achieved by a needle holder with the features of
Vorteilhafte Ausgestaltungen der Nadelhalterung ergeben sich aus den abhängigen Patentansprüchen.Advantageous embodiments of the needle holder result from the dependent claims.
Die Bohrungen zweier benachbarter Nuten können in Verlaufsrichtung der Nuten gesehen versetzt zueinander angeordnet sein. Die Mittelachsen der Bohrungen sind dabei in Verlaufsrichtung der Nuten gesehen mit Abstand zueinander angeordnet. Dadurch ist es möglich, benachbarte Nuten noch näher nebeneinander anzuordnen. Außerdem können gewünschte Einstichmuster im zu bearbeitenden Textilmaterial erreicht werden.The holes of two adjacent grooves can be seen offset in the direction of the grooves arranged to each other. The center axes of the holes are arranged in the direction of the grooves spaced from each other. This makes it possible to arrange adjacent grooves even closer together. In addition, desired puncture patterns can be achieved in the textile material to be processed.
Es ist vorteilhaft, wenn ein Nutabstand in Nutbreitenrichtung quer zur Verlaufsrichtung der Nuten zwischen der Nutmitte einer der Nuten und der Nutmitte einer der unmittelbar benachbart verlaufenden Nuten maximal so groß ist, wie der Durchmesser der Bohrungen. Mit dieser Anordnung ist eine weitere Erhöhung der Nadeldichte erreichbar.It is advantageous if a groove spacing in the width direction of the groove transverse to the direction of the grooves between the groove center of one of the grooves and the groove center of one of the immediately adjacent grooves is at most as large as the diameter of the holes. With this arrangement, a further increase in the needle density can be achieved.
Es ist weiterhin möglich, die Stabilität des Steges zwischen zwei Nuten des Nadelbretts durch eine geeignete Wahl der Querschnittsform der Nuten zu verbessern. Es kann hierbei zweckmäßig sein, wenn die Nuten eine der rechteckigen Form abweichende Querschnittsform aufweisen. Beispielsweise kann die Nutbreite ausgehend vom Nutgrund zur Oberseite des Nadelbretts hin zunehmen, wodurch die Basis des Stegs zwischen zwei einer Nut begrenzende Flanken benachbarter Nuten verbreitert ist.It is also possible to improve the stability of the web between two grooves of the needle board by a suitable choice of the cross-sectional shape of the grooves. It may be useful if the grooves one of the rectangular Form have different cross-sectional shape. For example, the groove width may increase starting from the groove base toward the top side of the needle board, as a result of which the base of the web is widened between two flanks of adjacent grooves delimiting a groove.
Die Lagerung der Haltemittel der Nadeln in den Nuten kann verbessert werden, wenn am Nutgrund in Verlaufsrichtung der Nut eine Kante ausgebildet ist und die an die Kante angrenzenden Flächen des Nutgrunds oder der Nutflanken schräg zur Mittelachse der Bohrungen verlaufen. Dadurch können Toleranzen zwischen Haltemittel und Nut ausgeglichen werden. Es ist ferner möglich, einen trapezförmigen, dreieckförmigen oder U-förmig konturierten Querschnitt für die Nuten vorzusehen. Derartige Querschnittsformen sind mit handelsüblichen Werkzeugen kostengünstig herstellbar. Das Nadelbrett ist insbesondere aus einem nicht elastischen Werkstoff, vorzugsweise aus Metall hergestellt. Die Nuten können durch Fräsen in die Oberseite des Nadelbretts eingebracht sein.The storage of the holding means of the needles in the grooves can be improved if an edge is formed on the groove base in the direction of the groove and the edges adjacent to the edge surfaces of the groove base or groove flanks obliquely to the central axis of the holes. As a result, tolerances between the holding means and groove can be compensated. It is also possible to provide a trapezoidal, triangular or U-shaped contoured cross section for the grooves. Such cross-sectional shapes can be produced inexpensively using commercially available tools. The needle board is made in particular of a non-elastic material, preferably of metal. The grooves can be introduced by milling in the top of the needle board.
Eine für die Verwendung in der Nadelhalterung besonders geeignete Nadel weist entlang einer Längsachse einen Arbeitsabschnitt auf, an dem sich ein unterer und ein oberer Schaftabschnitt koaxial anschließen, wobei sich an den oberen Schaftabschnitt der Nadelfuß mit einem sich in einer Querrichtung quer zur Längsachse der Nadel im Wesentlichen geradlinig erstreckenden Haltemittel anschließt. Das Haltemittel kann sich von der Längsachse der Nadel in einer Richtung weg erstrecken. In besonderen Anwendungsfällen ist es vorteilhaft, wenn sich das Haltemittel von der Längsachse der Nadel zu zwei gegenüberliegenden Seiten weg erstreckt. Das Haltemittel weist eine eigene Längsmittelachse auf, welche die Normale der Längsmittelachse der Nadel bildet. Der Durchmesser des oberen Schaftabschnitts ist sowohl größer als der Durchmesser des unteren Schaftabschnitts, als auch größer als der Mittelwert der Breite des Haltemittels. Die Breite des Haltemittels wird in Richtung der Normale, der Längsmittelachse des Haltemittels bestimmt und legt eine Breitenrichtung fest.A needle particularly suitable for use in the needle holder has along a longitudinal axis a working portion to which a lower and an upper shank portion coaxially adjoin each other, with the needle butt facing the upper shank portion in a transverse direction transverse to the longitudinal axis of the needle Essentially rectilinearly extending holding means connects. The retaining means may extend away from the longitudinal axis of the needle in one direction. In particular applications, it is advantageous if the retaining means extends away from the longitudinal axis of the needle to two opposite sides. The holding means has its own longitudinal central axis, which forms the normal of the longitudinal central axis of the needle. The diameter of the upper shaft portion is both greater than the diameter of the lower shaft portion, as well as greater than the average value of the width of the holding means. The width of the holding means is determined in the direction of the normal, the longitudinal center axis of the holding means and defines a width direction.
Weitere Einzelheiten von Ausführungsformen der Erfindung ergeben sich aus der Beschreibung, der Zeichnung oder Ansprüchen. Die Beschreibung beschränkt sich auf wesentliche Einzelheiten von Ausführungsformen der Erfindung und sonstigen Gegebenheiten. Die Zeichnung offenbart weitere Einzelheiten und ist ergänzend heranzuziehen. Es zeigen:
-
Fig. 1 ein erstes Ausführungsbeispiel einer Nadel in Gebrauchslage eingesetzt in eine Nadelhalterung in schematischer Seitenansicht, -
Fig. 2 eine Abwandlung des Ausführungsbeispiels der Nadel nach in gleicher Ansicht,Figur 1 -
Fig. 3 eine schematische Teildarstellung eines Nadelbretts einer Nadelhalterung in Draufsicht auf dessen Oberseite, -
Fig. 4 eine Teilansicht des Nadelbretts ausFigur 3 in Schnittdarstellung gemäß Schnittlinie IV/IV, -
Fig. 5a bis 5f verschiedene Querschnittsformen der Nut des Nadelbretts, -
Fig. 6a und 6b eine schematische Seitenansicht einer abgewandelten Ausführungsform des Nadelfußes der Nadel in Seitenansicht (Fig. 6a ) und in Vorderansicht (Fig. 6b ) gesehen, -
Fig. 7a bis 7f verschiedene Querschnittsformen des Haltemittels des Nadelfußes und -
Fig. 8a bis 8f verschiedene Querschnittformen des oberen Schaftabschnitts der Nadel.
-
Fig. 1 a first embodiment of a needle in the position of use inserted into a needle holder in a schematic side view, -
Fig. 2 a modification of the embodiment of the needle afterFIG. 1 in the same view, -
Fig. 3 a schematic partial view of a needle board of a needle holder in plan view on the upper side, -
Fig. 4 a partial view of the needle board offFIG. 3 in section according to section line IV / IV, -
Fig. 5a to 5f various cross-sectional shapes of the groove of the needle board, -
Fig. 6a and 6b a schematic side view of a modified embodiment of the needle butt of the needle in side view (Fig. 6a ) and in front view (Fig. 6b ) seen, -
Fig. 7a to 7f various cross-sectional shapes of the holding means of the needle butt and -
Fig. 8a to 8f various cross-sectional shapes of the upper shaft portion of the needle.
In den
[01] Die Nadel 15 weist einen sich entlang einer Längsachse 16 erstreckenden Arbeitsabschnitt 17 auf, an dem die Nadelspitze 18 angeordnet ist. Die Nadelspitze 18 stellt das erste freie Ende 19 der Nadel 15 dar.[01] The
[02] An den Arbeitsabschnitt 17 schließt sich ein unterer Schaftabschnitt 20 an, der sich koaxial zur Längsachse 16 und koaxial zum Arbeitsabschnitt 17 erstreckt. Der untere Schaftabschnitt 20 hat einen kreisrunden Querschnitt, dessen Durchmesser D größer ist als der Durchmesser C des Arbeitsabschnitts 17. Der Durchmesser eines Schaftabschnitts 20 oder des Arbeitsabschnitts 17 der Nadel 15 entspricht dem kleinstmöglichen Durchmesser einer koaxial zur Längsachse 16 angeordneten Zylindermantelfläche eines Kreiszylinders, die den betreffenden Schaftabschnitt vollständig umgibt. Dabei ragen keine Teile des betreffenden Abschnitts durch die Zylindermantelfläche hindurch. Wegen der unterschiedlichen Durchmesser des Arbeitsabschnitts 17 und des unteren Schaftabschnitts 20 sind diese beiden Abschnitte 17, 20 über einen konischen ersten Übergangsbereich 21 miteinander verbunden, der sich ausgehend vom Arbeitsabschnitt 17 zum unteren Schaftabschnitt 20 kontinuierlich aufweitet.At the working
[21] Die Außenfläche des ersten Übergangsbereichs 21 entspricht beispielsgemäß der Mantelfläche eines Kegelstumpfs. In Abwandlung hierzu könnte der Übergangsbereich 21 auch kantenlos ausgeführt sein. Weiterhin ist es möglich, am ersten Übergangsbereich 21 Verstärkungsrippen vorzusehen, um die Biegesteifigkeit der Nadel in diesem Bereich zu erhöhen.[21] According to the example, the outer surface of the
Bei dem hier beschriebenen Ausführungsbeispiel ist der Querschnitt des unteren Schaftabschnitts 20 kreisrund ausgeführt. Sein Durchmesser D entspricht dem Durchmesser eines Nadelrohlings, aus dem die Nadel 15 hergestellt wird.In the embodiment described here, the cross section of the
Anschließend an den unteren Schaftabschnitt 20 weist die Nadel 15 einen oberen Schaftabschnitt 25 auf, dessen Durchmesser E größer ist als der Durchmesser D des unteren Schaftabschnitts 20. Im Querschnitt kann der obere Schaftabschnitt 25 kreisrund geformt sein, allerdings sind abweichend hiervon beliebige andere Querschnittsgestaltungen möglich, wie sie beispielhaft in den
[05] An den oberen Schaftabschnitt 25 schließt sich ein Nadelfuß 30 an, der ein sich im Wesentlichen geradlinig erstreckendes Haltemittel 32 aufweist. Dieses Haltemittel 32 erstreckt sich entlang einer Querrichtung 31 die quer zur Längsachse 16 der Nadel 15 angeordnet ist.[05] The
Bei den Ausführungsbeispielen gemäß
Die Breite des Haltemittels 32 wird in einer Breitenrichtung 34 quer zur Längsachse 16 und quer zur Querrichtung 31 gemessen. Der Mittelwert der Breite des Haltemittels 32 der Nadel 15 ist kleiner als der Durchmesser E des oberen Schaftabschnitts 25. Bei der in
Bei der Nadel 15 gemäß der
Die Ausformung des Nadelfußes 30 gemäß der
Einige mögliche Querschnittsformen für das Haltemittel 32 sind in den
[15] Der Mittelwert der Breite und insbesondere die Breite des Haltemittels 32 an jeder beliebigen Stelle ist in Breitenrichtung 34 kleiner als der Durchmesser E des oberen Schaftabschnitts 25. Der Querschnitt des Haltemittels 32 kann oval (rennbahnförmig) oder ellipsenartig ausgeführt sein. Beim Ausführungsbeispiel gemäß
[22] Für den oberen Schaftabschnitt 25 sind mögliche Querschnittsformen beispielhaft in den
[23] Zwischen zwei Anlagestellen 60 ist jeweils eine Aussparung 65 gebildet. Der radiale Abstand des Außenflächenbereichs des oberen Schaftabschnitts 25 ist im Bereich einer Aussparung 65 zwischen zwei Anlagestellen 60 überall geringer als an der Anlagestelle 60. Somit befinden sich nur die Anlagestellen 60 auf der gemeinsamen Zylindermantelfläche 61.[23] Between two
[09] Der obere Schaftabschnitt 25 kann beispielsweise einen mehreckigen, insbesondere rechteckigen oder wie beispielsweise in
[10] In
[11a] Alternativ kann der Querschnitt des oberen Schaftabschnitts 25 auch stern- oder kreuzartig konturiert sein, wie dies beispielsweise aus den
[11b] Bei der kreuzartigen Querschnittsform aus
[12] Die beiden Querschnittsgestaltungen gemäß
[13] Bei der in
[14] Die beschriebenen Ausführungsbeispiele der Querschnittsform des oberen Schaftabschnitts 25 können von den in den
In den
[06] In der nachfolgenden Beschreibung wird beispielhaft von einem oberhalb des zu bearbeitenden textilen Flächenmaterials angeordneten Nadelbrett ausgegangen. Prinzipiell kann ein solches Nadelbrett zusätzlich oder alternativ auch unterhalb des Flächenmaterials angeordnet sein.[06] In the following description, a needle board arranged above the textile surface material to be processed is assumed as an example. in principle Such a needle board may additionally or alternatively also be arranged below the surface material.
[07] Die Nadelhalterung 45 weist ein Nadelbrett 46 und einen Nadelbalken 47 auf. Im Nadelbrett 46 sind zu einer Oberseite 44 hin offene Nuten 48 vorgesehen, die mit Abstand zueinander parallel in eine Richtung verlaufen. Die Nuten 48 weisen an ihre offene Seite angrenzende sich gegenüberliegende Nutflanken 55 auf, die die Nut 48 in Nutbreitenrichtung 92 begrenzen, die bei in das Nadelbrett 46 eingesetzter Nadel mit der Breitenrichtung 34 der Nadel 15 übereinstimmt. Die beiden Nutflanken 55 sind über einen Nutgrund 70 miteinander verbunden.[07] The
[08] Zwei benachbarte Nuten 48 sind jeweils durch einen Abstand in Form eines Steges 49 voneinander getrennt. Von der Oberseite 44 bis zu einer gegenüberliegenden Unterseite 50 ist das Nadelbrett 46 von einer Vielzahl von Bohrungen 51 durchsetzt. Im Bereich der Oberseite 44 münden die Bohrungen 51 in die Nuten 48 ein. Die Mittelachse 52 der Bohrungen 51 durchsetzt die betreffende Nut 48 in Nutbreitenrichtung 92 in etwa mittig. Entlang jeder Nut 48 sind mehrere Bohrungen 51 vorgesehen.[08] Two
Die über eine gemeinsame Nut 48 verbundenen Bohrungen 51 sind in Verlaufsrichtung der Nut 48 gesehen bei der bevorzugten Ausführungsform des Nadelbretts 46 in regelmäßigen Abständen angeordnet. Die Bohrungen 51 zweier benachbarter Nuten können in Verlaufsrichtung der Nuten 48 gesehen zueinander versetzt angeordnet sein, wie dies zum Beispiel in
Die Nutbreite B wird quer zur Querrichtung 31 in Breitenrichtung 34 gemessen. Die Nutbreite B kann sich abhängig von der betrachteten Stelle an der Nutflanke 55 oder am Nutgrund 70 ändern, was von der gewählten Querschnittsform der Nut 48 abhängt. Während bei rechteckigem Nutenquerschnitt nach
Wie dies in
Ein Nutabstand A zwischen der Nutmitte in Nutbreitenrichtung 92 einer der Nuten 48 und der Nutmitte einer unmittelbar benachbart verlaufenden Nut 48 ist maximal so groß wie der Durchmesser E, der im Nadelbrett 46 vorgesehenen Bohrungen 51. Mit anderen Worten, würde eine Tangente 75, die zwischen diesen beiden Nuten 48 in Verlaufsrichtung der Nuten 48 an die Bohrungen 51 einer der Nuten 48 angelegt ist, auch die Tangente an die Bohrungen 51 der jeweils anderen Nut 48 darstellen oder diese Bohrungen schneiden. Ein derart gewählter Nutabstand A zwischen zwei nebeneinander angeordneten Nuten 48 ist vorzugsweise nur bei einem Teil der Nuten 48 des Nutenbretts 46 vorgesehen. Andere unmittelbar benachbarte Nuten 48 weisen einen größeren Nutabstand A auf. Die Nutabstände A zwischen einer Nut 48 und den beiden unmittelbar benachbart dazu verlaufende Nuten 48 können unterschiedlich groß sein.A groove spacing A between the groove center in the
Der Nutenquerschnitt kann in seiner Form von der in
[16] Bei allen Querschnittsformen der Nut 48 ist die Nutbreite B im Übergangsbereich zwischen den beiden Nutflanken 55 und dem Nutgrund 70 kleiner als der Durchmesser der Bohrung 51. Auch der Mittelwert der Nutbreite B, die sich abhängig von der betrachteten Stelle an der Nutflanken 55 oder dem Nutgrund 70 ändern kann, ist bei allen Ausführungsvarianten kleiner als der Durchmesser E der Bohrung 51. Die Nutbreite B kann dabei an jeder Stelle kleiner sein als der Durchmesser E der Bohrung 51, wie dies bei den Nutquerschnitten gemäß der
[17] In
[18] Eine weitere Nutform mit trapezförmigem Querschnitt ist in
[19] Die
Der Winkel zwischen dem Nutgrund 70 und den Nutflanken 55 kann bei einem trapezförmigen Nutenquerschnitt im Bereich von 45° bis 85° variieren. Der Winkel, den die beiden Nutflanken 55 am Nutgrund 70 miteinander einschließen, kann bei einem dreieckförmigen Nutenquerschnitt im Bereich zwischen 70° und 130° variieren.The angle between the groove bottom 70 and the groove flanks 55 may vary in the case of a trapezoidal groove cross-section in the range of 45 ° to 85 °. The angle which the two
Neben den in den
Das Nadelbrett 46 ist beim bevorzugten Ausführungsbeispiel aus einem nicht elastischen Werkstoff, vorzugsweise aus Metall hergestellt. Die Nuten 48 können auf einfache Weise durch Fräsen in eine Metallplatte eingebracht werden. Zuvor oder danach können die Bohrungen 51 eingebracht werden.The
[24] Die Nadelhalterung 45 ist hier für eine nicht näher dargestellte Filzmaschine vorgesehen. Das Nadelbrett 46 ist dabei im Wesentlichen horizontal angeordnet. Durch jede Bohrung 51 ist eine Nadel 15 hindurch gesteckt, so dass der obere Schaftabschnitt 25 mit seinen Anlagestellen 60 an der Innenfläche der betreffenden Bohrung 51 anliegt, die eine Gegenanlagefläche 56 für die Anlagestellen 60 darstellt. Dadurch ist die Nadel 15 radial zu ihrer Längsachse 16 im Nadelbrett 46 gelagert. Da die Arbeitsabschnitte 17 der Nadeln nicht symmetrisch zur Längsachse 16 ausgestaltet sein müssen, ergibt sich eine gewünschte Drehlage um die Längsachse 16, die die Nadeln 15 in der Nadelhalterung 45 einnehmen sollen. Um diese Drehlage vorzugeben und auch während des Filzens beizubehalten, wird das Haltemittel 32 des Nadelfußes 30 der Nadeln 15 in der Nut 48 angeordnet, die im Bereich der Oberseite 44 durch die Bohrung 51 hindurchgeht, in der sich die betreffende Nadel 15 befindet. Die Nutflanken 55 der Nut 48 dienen dabei sozusagen als Drehanschlag für das Haltemittel 32, so dass sich die Nadel 15 nicht oder nur entsprechend dem Spiel zwischen dem Haltemittel 32 und den Nutflanken 55 um ihre Längsachse 16 drehen kann. Vorzugsweise ist das Haltemittel 32 in Gebrauchslage der Nadel 15 in Breitenrichtung 34 gesehen spielfrei in der Nut 48 angeordnet.[24] The
[25] Die Arbeitsrichtung beim Filzen ist parallel zur Längsachse 16 der Nadeln 15 ausgerichtet. Auf die Oberseite 44 des Nadelbretts 46 wird der Nadelbalken 47 aufgelegt, so dass die Nadeln 15 in Arbeitsrichtung parallel zur Längsachse 16 fixiert sind, wie dies schematisch in den
Die Erfindung betrifft eine Nadelhalterung 45 für eine Textilmaschine, mit einem Nadelbrett 46, in dem auf einer Oberseite 44 mehrere parallel zueinander verlaufende Nuten 48 vorgesehen sind. Entlang jeder Nut 48 sind mehrere zueinander beabstandete, das Nadelbrett 46 vollständig durchsetzende Bohrungen 51 angeordnet. Der Durchmesser E der Bohrungen 51 ist größer als ein Mittelwert der Nutbreite B oder größer als die Nutbreite B im Bereich des Nutgrunds 70.The invention relates to a
- 1515
- Nadelneedle
- 1616
- Längsachselongitudinal axis
- 1717
- Arbeitsabschnittworking section
- 1818
- Nadelspitzepinpoint
- 2020
- unterer Schaftabschnittlower shaft section
- 2121
- erster Übergangsbereichfirst transition area
- 2525
- oberer Schaftabschnittupper shaft section
- 2626
- erste Stufe, Ringflächefirst step, ring surface
- 3030
- Nadelfußbutt
- 3131
- Querrichtungtransversely
- 3232
- Haltemittelholding means
- 3333
- FußanbindungFußanbindung
- 3434
- Breitenrichtungwidth direction
- 3535
- freies Ende von 32free end of 32
- 35'35 '
- freies Ende von 32free end of 32
- 4040
- zweite Stufesecond step
- 4141
- zweiter Übergangsbereichsecond transition area
- 4242
- dritter Übergangsbereichthird transition area
- 4444
- Oberseite von 46Top of 46
- 4545
- Nadelhalterungneedle holder
- 4646
- Nadelbrettneedle board
- 4747
- Nadelbalkenneedle beam
- 4848
- Nutgroove
- 4949
- Stegweb
- 5050
- Unterseite von 46Bottom of 46
- 5151
- Bohrungdrilling
- 5252
- Mittelachse von 51Central axis of 51
- 5555
- Nutflankeflank
- 5656
- GegenanlageflächeAnvil surface
- 6060
- Anlagestellecontact point
- 6161
- ZylindermantelflächeCylinder surface
- 6565
- Aussparungrecess
- 6767
- AußenflächenabschnitteOuter surface portions
- 6868
- SternspitzeSternspitze
- 7070
- Nutgrundgroove base
- 70a70a
- Flächenabschnitt von 70Area section of 70
- 70b70b
- Flächenabschnitt von 70Area section of 70
- 7373
- Ausnehmungrecess
- 7575
- Tangentetangent
- 9191
- Tiefenrichtungdepth direction
- 9292
- Nutbreitenrichtunggroove width
- AA
- Nutabstandgroove pitch
- BB
- Nutbreitegroove width
- CC
- Durchmesser von 17Diameter of 17
- DD
- Durchmesser von 20Diameter of 20
- Ee
- Durchmesser von 25, 51Diameter of 25, 51
- WW
- WandstärkeWall thickness
Claims (15)
mit einem Nadelbrett (46), in dem auf einer Oberseite (44) mehrere parallel zueinander in einer Querrichtung(31) verlaufende Nuten (48) vorgesehen sind,
wobei entlang jeder Nut (48) mehrere zueinander beabstandete, das Nadelbrett (46) von der Oberseite (44) bis zur gegenüberliegenden Unterseite (50) vollständig durchsetzenden Bohrungen (51) vorgesehen sind,
wobei der Durchmesser (E) der Bohrungen (51) größer ist als ein Mittelwert der Nutbreite (B) oder größer als die Nutbreite (B) im Bereich des Nutgrunds (70).Needle holder for a textile machine,
with a needle board (46) in which a plurality of grooves (48) running parallel to one another in a transverse direction (31) are provided on an upper side (44),
wherein along each groove (48) a plurality of spaced-apart, the needle board (46) from the top (44) to the opposite bottom (50) completely penetrating holes (51) are provided,
wherein the diameter (E) of the bores (51) is greater than an average value of the groove width (B) or greater than the groove width (B) in the region of the groove bottom (70).
mit einem sich entlang einer Längsachse (16) erstreckenden, eine Nadelspitze (18) aufweisenden Arbeitsabschnitt (17),
mit einem sich an den Arbeitsabschnitt (17) anschließenden unteren Schaftabschnitt (20), an den sich ein oberer Schaftabschnitt (25) anschließt, wobei sich beide Schaftabschnitte (20, 25) koaxial zueinander entlang der Längsachse (16) erstrecken,
und mit einem sich an den oberen Schaftabschnitt (25) anschließenden Nadelfuß (30), der ein sich in einer Querrichtung (31) quer zur Längsachse (16) im Wesentlichen geradlinig erstreckenden Haltemittel (32) aufweist,
wobei der Durchmesser (E) des oberen Schaftabschnitts (25) sowohl größer ist als der Durchmesser (D) des unteren Schaftabschnitts (20), als auch größer als die mittlere Breite des Haltemittels (32) des Nadelfußes (30) in Breitenrichtung (34).Needle for use in a needle holder (45) of a textile machine, in particular according to one of the preceding claims,
with a working section (17) extending along a longitudinal axis (16) and having a needle point (18),
with a lower shank portion (20) adjoining the working portion (17) and adjoining an upper shank portion (25), both shank portions (20, 25) extending coaxially with one another along the longitudinal axis (16),
and with a needle foot (30) which adjoins the upper shaft section (25) and has a holding means (32) extending substantially rectilinearly in a transverse direction (31) transversely to the longitudinal axis (16),
wherein the diameter (E) of the upper shaft portion (25) is both greater than the diameter (D) of the lower shaft portion (20), and greater than the average width of the holding means (32) of the needle butt (30) in the width direction (34) ,
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09152726A EP2218813B1 (en) | 2009-02-12 | 2009-02-12 | Needle holder for a textile machine |
ES09152726T ES2368476T3 (en) | 2009-02-12 | 2009-02-12 | NEEDLE SUPPORT FOR A TEXTILE MACHINE. |
JP2010027013A JP5697816B2 (en) | 2009-02-12 | 2010-02-09 | Needle holder for textile machine |
KR1020100012280A KR101248048B1 (en) | 2009-02-12 | 2010-02-10 | Needle holder for a textile machine |
TW099104252A TWI435965B (en) | 2009-02-12 | 2010-02-11 | Needle holder for a textile machine |
CN201010118652.7A CN101805959B (en) | 2009-02-12 | 2010-02-12 | Needle holder for a textile machine |
US12/705,154 US8245373B2 (en) | 2009-02-12 | 2010-02-12 | Needle holder for a textile machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09152726A EP2218813B1 (en) | 2009-02-12 | 2009-02-12 | Needle holder for a textile machine |
Publications (2)
Publication Number | Publication Date |
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EP2218813A1 true EP2218813A1 (en) | 2010-08-18 |
EP2218813B1 EP2218813B1 (en) | 2011-06-22 |
Family
ID=40613129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09152726A Active EP2218813B1 (en) | 2009-02-12 | 2009-02-12 | Needle holder for a textile machine |
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US (1) | US8245373B2 (en) |
EP (1) | EP2218813B1 (en) |
JP (1) | JP5697816B2 (en) |
KR (1) | KR101248048B1 (en) |
CN (1) | CN101805959B (en) |
ES (1) | ES2368476T3 (en) |
TW (1) | TWI435965B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9192375B2 (en) | 2012-02-29 | 2015-11-24 | Marker Medical, Llc | Surgical apparatus and method |
EP2918719B1 (en) * | 2014-03-13 | 2016-09-14 | Oskar Dilo Maschinenfabrik KG | Method for homogenising the puncture pattern in a needled nonwoven fabric |
DE102015014722B3 (en) * | 2015-10-28 | 2016-12-15 | Thomas Liebers | Knitting machine with a guide channel and a knitting element guided therein |
EP3165659B1 (en) * | 2015-11-05 | 2018-08-29 | Oskar Dilo Maschinenfabrik KG | Needle module for a needle board of a needling machine |
CN109137269B (en) * | 2018-10-10 | 2024-02-02 | 烟台博斯纳钢琴制造有限公司 | Pin header assembly and piano hammer pre-trimming needle machine |
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- 2009-02-12 ES ES09152726T patent/ES2368476T3/en active Active
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2010
- 2010-02-09 JP JP2010027013A patent/JP5697816B2/en active Active
- 2010-02-10 KR KR1020100012280A patent/KR101248048B1/en active IP Right Grant
- 2010-02-11 TW TW099104252A patent/TWI435965B/en active
- 2010-02-12 CN CN201010118652.7A patent/CN101805959B/en active Active
- 2010-02-12 US US12/705,154 patent/US8245373B2/en active Active
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CH343353A (en) * | 1954-03-10 | 1959-12-31 | Du Pont | Method of entangling fibers by piercing needles into fabrics |
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US3309753A (en) * | 1964-04-15 | 1967-03-21 | J J Marx | Needle board for felting looms and the like |
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Also Published As
Publication number | Publication date |
---|---|
KR101248048B1 (en) | 2013-03-27 |
TWI435965B (en) | 2014-05-01 |
US8245373B2 (en) | 2012-08-21 |
TW201040343A (en) | 2010-11-16 |
JP2010196238A (en) | 2010-09-09 |
ES2368476T3 (en) | 2011-11-17 |
KR20100092379A (en) | 2010-08-20 |
JP5697816B2 (en) | 2015-04-08 |
EP2218813B1 (en) | 2011-06-22 |
CN101805959A (en) | 2010-08-18 |
US20110041303A1 (en) | 2011-02-24 |
CN101805959B (en) | 2013-01-02 |
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