JP5254027B2 - Support for drafting mechanism of textile machine and method of manufacturing the support - Google Patents

Description

  The present invention relates to a support for a drafting mechanism of a textile machine in the form described in the superordinate concept of claim 1, and to a method for manufacturing a support of the type described in the superordinate concept of claim 6.

  From German Offenlegungsschrift 3,902,859, a support for a carrier of a draft mechanism is known, the support combining two plate members appropriately dimensioned with respect to the load generated in the draft mechanism. Manufactured by. Here, two plate members formed in the same shape and arranged in parallel to each other are mutually coupled by a spacer.

  Furthermore, integrally formed supports having a U-shaped contour are known, the support being formed from an end face and parallel side walls extending perpendicular to the end face. The support is manufactured by using a deep drawing die. The sidewalls are interconnected by spacers on the side opposite the end face. This helps to stabilize the shape of the support that is open on the side opposite the end face.

  According to the drawbacks of the prior art, the cost for increasing the stability of the support is increased, which is caused by material costs and mounting costs, as well as by using expensive deep drawing dies.

  The object of the present invention is to provide a support for a carrier of a draft mechanism that is simple and inexpensive to manufacture, and to provide a method of manufacturing a support that can be implemented without using a mold. It is.

  This problem is solved by a support having the configuration according to the features of claim 1 and by a method having the configuration according to the features of claim 6.

  Advantageous embodiments are described in the dependent claims.

  According to the configuration of claim 1, the support body is provided with a plurality of sections bent perpendicularly to the end face and the side wall in order to enhance the shape stability, and these sections are coupled to each other by shape coupling. The space shape of the support is formed by bending. Due to the shape-bonded and interconnected sections extending at least partially over the length of the side walls, the support is shape-stabilized and does not require the use of spacers or the like as required in the prior art. Torque transmitted to the support via the carrier during operation of the draft mechanism can be well received based on the relatively high torsional stiffness of the support. The structure is simplified by the integral structure of the support. Furthermore, the support according to the invention can be manufactured at low cost. This is because it is not necessary to use an expensive deep drawing mold that is exposed to extremely high wear when manufacturing a support in the prior art, or it is not necessary to use a spacer for stabilizing the shape.

  Some sections, especially those that are joined together by shape bonding, can have a slight oversize. Thus, the coupling of such sections can be done by fitting, thereby avoiding the use of additional coupling means such as screws or rivets, or another coupling method such as welding or brazing. it can. This reduces the work steps required for manufacturing and thus reduces the manufacturing costs of the support. In particular, in combination with the mating, by means of the appropriate shaping of the sections which can be joined together by shape coupling, frictional shape coupling of the side walls is achieved, whereby the side walls are based on forces directed perpendicular to the side walls Can slide on each other.

  Further, a through hole for accommodating an adjusting means for adjusting the height of the carrier is arranged on the upper surface formed by the bent section. The adjusting means can be formed as a screw supported on the upper surface of the support.

  Furthermore, at least one edge bending part is provided in one section, and the edge bending part is supported by the recessed part in the other side wall. In this way, when the height of the support is adjusted, the upper surface of the support is not bent inward by the resulting force directed perpendicular to the upper surface.

  Advantageously, the end face is interrupted by at least one recess, such that the recess partially surrounds the at least one holder rod in a shape connection.

  According to claim 6, the preformed workpiece is made to have a U-shape with parallel side walls by means of a right-angled fold twice in the region of the end face, The sections that are useful for shape joining are partially folded to face each other. The method according to the invention makes it possible to produce a mold-free support, in which the use of additional coupling means, such as rivets or screws, or the use of additional coupling methods, such as welding or brazing, is omitted. The The production according to the invention achieves a relatively high form stability, which was not achieved with the prior art supports.

  Advantageously, the preformed workpiece is produced by stamping. Manufacture of preformed workpieces by stamping is inexpensive and can be done in mass production.

  Furthermore, when the shape of the support is stabilized by the end face section, and the recess is punched out from the region where the end face is formed, the end face section is formed, and the end face section is parallel to the end face by bending. To place. Advantageously, this takes place in the region of the end surface opposite the top surface, which region serves to interconnect the two supports. This can double the wall thickness and thus increase the stability in this region of the end face.

  Embodiments of the present invention will now be described in detail with reference to the drawings.

  FIG. 1 shows a support 1 for a drafting mechanism of a textile machine according to the invention. The support 1 serves to accommodate a carrier (not shown) of the draft mechanism. The carrier is supported so as to be able to turn around a turning shaft (not shown) disposed in the through hole 10 of the support 1. In order to attach the carrier, the carrier is fixed by means of a support 1 to a holder rod (not shown) of the machine frame of the textile machine.

  The integrally formed support body 1 has a substantially U-shaped profile. Furthermore, the support body 1 is provided with an end face 3, which is interrupted by a recess 9, and the recess 9 serves to accommodate the holder rod in a shape coupling (constraint by shape) manner. The end face 3 is followed by a side wall 2 extending perpendicularly to the end face 3, and the side walls 2 are arranged parallel to each other. The through-holes 10 that serve to accommodate the pivot axis are arranged in the side wall 2 of the support 1 in alignment with each other. The support 1 further comprises an upper surface 4 extending perpendicularly to the end face 3 and the side wall 2, the upper surface 4 being formed by sections 5, 6 of the side wall 2 bent at right angles. In this case, the sections 5, 6 extend substantially over the length of the side wall 2, whereby the U-shaped support 1 is at least partly closed upward.

  A through hole 7 is provided in the upper surface 4 of the support 1, and the through hole 7 serves to accommodate adjusting means (not shown) for adjusting the height of the carrier. The section 6 is further provided with an edge bend 8, and the edge bend 8 extends perpendicular to the section 6. The edge bend 8 is supported by a suitably shaped recess 11 in the side wall 2. The recess 11 serves to receive a tensile force directed perpendicular to the upper surface 4 that occurs during the height adjustment of the carrier, thereby avoiding the pushing of the upper surface 4.

  FIG. 2 shows in detail the portion of the support 1 indicated by A in FIG. From the drawing, a folded end face section 12 can be seen, the end face section 12 extending parallel to the end face 3 and continuing to the end face 3. The end surface section 12 is provided with a through-hole 13, and the through-hole 13 accommodates a coupling means for fixing the support 1 to another support not shown at a position attached to the holder rod. To help. For this purpose, the two end faces 3 of the support 1 facing each other are located side by side and are mutually coupled by means of a fastening sleeve and a coupling means not shown. For this purpose, the clamping sleeve extends through a protrusion 14 arranged in the region of the upper surface 4 of the support 1, which has a through-hole arranged in alignment to accommodate the clamping sleeve. 15 is provided. Additional reinforcement and shape stability of the support 1 is obtained by doubling the wall thickness in the region of the end face 3 opposite the top face 4.

  According to the method of the present invention, a preformed workpiece is used to produce the support 1, which is produced, for example, by stamping and is partially symmetrical. The workpiece already has a suitably preformed contour of sections 5, 6, edge bend 8, end face section 12 or recesses 9, 11 by stamping. In this case, the end face section 12 is maintained inside the recess 9 when the workpiece is stamped and formed.

  According to the invention, the workpiece is first folded into a substantially U-shaped profile, so that the side wall 2 extends perpendicular to the end face 3 and extends parallel to each other. Subsequently, the sections 5 and 6 of the side wall 2 are bent by bending so that the sections 5 and 6 are aligned with each other. In this case, the sections 5 and 6 are joined so as to enter each other by shape connection. In this way, the three-dimensional configuration of the support 1 is formed.

  Furthermore, the edge bending part 8 of one side wall 2 is engaged with the recessed part 11 of another one side wall 2 by shape coupling. Since sections 5, 6 joined together in a shape connection have a relatively small excess size, sections 5, 6 are joined together in a manner similar to a fit.

It is a side view of the support body by this invention. It is detail drawing which shows the part shown by A of FIG. 1 of the support body shown in FIG.

Claims (8)

A support (1) comprising:
The support (1) serves to accommodate a carrier for the top roller of the drafting mechanism and is adapted to be attached to at least one holder rod in a machine frame of a textile machine, the support (1 ) Has a U-shaped contour, the contour being formed of an end face (3) and parallel side walls (2) extending perpendicular to the end face (3). In things,
The support (1) includes a plurality of sections (5, 6) bent perpendicularly to the side wall (2) in order to enhance shape stability, and these sections (5, 6) Are connected to each other by shape connection,
The support body characterized in that the spatial shape of the support body (1) is manufactured by bending.   Support according to claim 1, characterized in that several folded sections (5, 6) are joined together by a fit.   2. The through hole (7) for accommodating adjusting means for adjusting the height of the carrier is arranged on the upper surface (4) formed by the folded section (5, 6). 2. The support according to 2.   The one bent section (5, 6) is provided with at least one edge bent portion (8), and the edge bent portion (8) is formed in the recess (11) on the other side wall (2). The support according to any one of claims 1 to 3, wherein the support is supported.   The end face (3) is interrupted by at least one recess (9), which recess (9) is adapted to partially surround at least one holder rod in a shape connection. 5. The support according to any one of 4 to 4. A method for producing a support (1) according to any one of claims 1 to 5,
In order to produce a support (1), first a method of preforming a planar workpiece,
The preformed workpiece has a U-shape with parallel side walls by a right angle bend twice in the region of the end face;
A method for manufacturing a support, characterized in that the sections (5, 6, 8) of the preformed workpiece, which serve for shape joining, are folded partly facing each other.   The method of claim 6, wherein the preformed workpiece is produced by stamping. Processed to punching a workpiece, in forming a recess (9) in a region where the end face of the support (1) (3) is formed, the end face Classification inside the recess (9) (12) is maintained punched workpiece so that the end face of the support the end face Classification (12) after punching (1) (3) bent parallel to the process of claim 7 wherein.

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