Needle sewing machine
(57) Abstract:the invention relates to the design of the needles for sewing machines and allows you to extend the functionality of sewing machine needles. The needle consists of a rod with grooves in the lower part of the rod and cone on the edge of the ear is located in the recess larger and smaller grooves, the upper edge which separates the tapered portion of the tip from the cylinder, the edge (without blunting) with the angle at the vertex, the surface of which is formed faces the closure of the parties in the ribs, which caused a notch, which increase the deformation of the ribs and the portion of the surface facets. 5 Il. The invention relates to the construction of sewing machine needles.Known design needles for sewing machines, comprising a rod including utonchennoy part, turning into the tip, bulb, culminating in the end. In the forefront is the eye, which serves for the filling threads.The aim of the invention is to increase the working area by destroying ovality on conical surface for receiving the compressed terrain with varying degrees of resistance and forms of tightening.In Fig.1-4 presents the design of a sewing machine needles with angle at versionem (mechanical) and education (interlocking faces), the ribs, which caused a notch (substitute laser Eimp); Fig.5 types obtained relief with a certain degree of resistance and forms of torque depending on the number of edges on the tip and put on them cuts.In Fig.4 shows the graphical representation of the profile of the enlarged zone of the working surface on the edge through education "zacherley" on the closing edges in the edges of the non-truncated pyramid with a sharp angle at the top and marked by notches on the edges, and form a notch on the edge and part of the face.The working end of the proposed design sewing machine needles (without blunting) has in axial cross section of a tapered shape with a deformed surface which corresponds to a linear image with a modified surface (warped, deformed ogranicenjem and notch substitute for laser Eimp.).Type rough-chain of the working surface is arbitrary and corresponds to 4-6 classes purity.The proposed construction of a sewing machine needles consists of a shaft 1, which are the grooves 2 in the lower part of the rod to the cone tip, there is an ear that is located in the recess (near Yavorivskyi) larger and smaller grooves, the who "shrouded" ogranicenjem 5, on the edges and part of the surface facets which caused notches 6.The upper part of the rod goes into the bulb 7, which ends with the end face 8 (one work area on the surface of the tip in the form of a non-truncated pyramid, the perimeter edge which separates taking cut of the surface with notches from the oval without edges and notches: in the area of the eye).Based on needle sewing machine with dimensions L 39 mm; L133,9 mm; d 1,7 mm Model: 0277-33, the execution of the flask 01, execution rod 02, the performance of the edge 02. The shape of the point all normal.The dependence between the optimal parameters and their values of the working surface of the tip:
between the height of the tip and Apodemus side surface of the non-truncated pyramid and edges located between the point at the vertex of the angle and the edge of the base;
between the optimal parameter values of the elements of a notch and forms a notch (the uncut edge of the pyramid formed by the joining of two faces forming a line not truncated end, the value of the ribs is determined by the appropriate formula for determining forming the non-truncated cone).Choosing the optimal values of the working area surface edges with the increased diapositivas, microgametocyte, microburette, you can get a compressed natural relief by tightening (no stitch thread). The different values of the optimal values obtained diversity compressed relief with a certain degree of stability and form.The oval conical surface of the tip by removing valnontey (mechanical grinding) is formed flat faces in the number of 3-8, every form fin dihedral angles in the amount of 3-8 height of 1.9 mmIs formed when the angularity of the working surface in the form of a non-truncated pyramid, the edge of the perimeter of the base which 1,94-5,85 mm and is located below the line of the lower edge of the eye at a distance of 2 mm"Acehenese" the surface of the edge faces is closing their edge in dihedral angles, forming multi-faceted non-truncated pyramid with a multifaceted acute angle at the tip apex settings < 90aboutwith a point at the top where closed at one point all the points of the angles at the vertex of each face.At the edges formed by joining the sides of the faces, dihedral angles in the form of "zacherley" non-truncated pyramid, the working surface on the edge, put a notch scrap or perpendicular to the longitudinal axis of the needle and to the working surface of the tip), to make a mesh of warp and weft threads throughout the operating cycle of the needle sewing machine (in the direction of movement of the needle, as well as the location of Microsystem up or down).And put notches on the edges have the following defining parameters and optimal values confirmed experimentally.1 the location of the notches on the edge) relative to the longitudinal axis of the needle and b) the working surface at an angle to the longitudinal axis (a), angle and perpendicular relative to the surface edges of a facet.2 the length of the notches 0,09-0,51 mm3, the Width of the notches 0,06-0,18 mm4 Depth ressaca (or height) of 0.08 to 0.7 mm5 depth of a notch (or height) of 0.1 to 1.1 mm6, the Perimeter edges of the notches of 0.3-1,38 mm7 Height Microsystem (h) of 0.07-0.8 mm in the number 5-8.8 Height microscopic (h) of 0.03-0.5 mm in the number 7-10.9 the Height of microburette (h) 0.04 to 0.6 mm in the number 8-11.10 Height microgametocyte (h) of 0.05-0.7 mm in the number 8-11.11 Height microwave (without grooves) (h) 0.06 to 0.7 mm between microsaccade in the number 6-9, between mikrosysteme 4-7.12 Height microwave with grooves (h) 0.08 to 0.9 mm in cuereneia, wide.15 Additional parameters sewing machine needles (without blunting): the angle at the vertex at the tip end ( 35about; 45about; 55about).While the roughness of the working surface with the increased range on the edge method notches (substitute laser Eimp.) corresponds to 4-6 classes purity.These distinctive characteristics are significant, as in the studied sources of scientific, technical and patent information signs, identical and equivalent, are not detected.The needle with the increased range of the working surface on the conical surface of the tip by the method of scoring works as follows in a compressed relief.When puncturing tissue in places puncture, puncture and between them is the tension of the yarn fabric: warp and weft with additional properties: microcline on the front surface with microabrasion in places puncture in combination with banding on the wrong side, is carried out under pressure of the working surface, combining the angularity of the form (dihedral angles non-truncated pyramid) with hooks (pointed tips) Microsystem notches, and at the moment of puncture saticoy: small, medium, large (tightening), and with a certain degree of resistance (high resistance, medium resistance-free mobility (less stable)).So under the influence of the working surface (with a larger range on the surface of the tip) needle sewing machine is the formation of a pressure relief with a certain degree and form of torque, the variety of which is shown in Fig.5 (a-d).5(a) the relief of moderate stability tightened with microcontinuum weak on the front surface of the formed lines puncture at an angle to the warp and weft threads; the degree of squeezing (tightening) normal.5(b) on the wrong side in places puncture the formation of the pile by microbrew of warp and weft threads.5(C) compressed relief with a movable tightening large form. The line of puncture is directed perpendicular to the warp threads, forming a high priobresti (including povyshennoi insulation). On the front side of microcline average degree of warp and weft threads.5(g) wrong side. Mikrovolnovaya (greater than 1 cm in length in combination with the ringing of the warp).The use of this needle design allows lscom at one end, rolling in the edge with the angle at the vertex of the tip apex, and with a bulb, culminating in an end face at the other end, characterized in that, to increase the working area by destroying ovality on conical surface for receiving the compressed terrain with varying degrees of resistance and forms of torque, on the side surface of the edge of the ribs formed by clamping the sides of the faces, resulting formed, the limitation of the surface of the edge of the within and the form of the non-truncated pyramid with the following parameters: the height of the non-truncated pyramid - 1.9 mm, the value of the polyhedral angle at the vertex of <90<SUP>, =35, =45, =55the length of the fin dihedral angle is 2.3 mm, the perimeter edge of the base of the non-truncated pyramid 1,94 - 5,85 mm separating "acehenese" the restrictions from the oval-conical surface of the tip, the edges at an angle to the longitudinal axis of the needle, and partially on the sides close to the junction of the ribs with the sides of the dihedral angle, put a notch located at an angle to the edge of the "bottom"-angle (narrow, wide) perpendicular and angled and perpendicular to each side of the middle notch in the amount of 1 - 3 on each edge, and on all edges 8 - 24 with the following parameters: the length on the - ,1 - 1.1 mm, the perimeter edges of a notch - 0,3 - 1,38 mm, height Microsystem of 0.07 - 0.8 mm 5 - 8, height micronuclear - 0,03 - 0,5 mm of 7 - 10, height microburette - 0,05 - 0,7 mm 8 - 11, high microhabitat - 0,05 - 0,7 mm 8 - 11, height microwave (non-recessed) - 0.06 to 0.07 mm in the amount of 6 - 9 between microsaccade, 4 - 7 - between microsistemi, height microwave with the deepening of - 0.08 to 0.9 mm in the amount of 7 to 10, the value of microglobuline microwave - 0,02 - 0,2 mm, form a notch: narrow, medium, wide, and full work surface with increased range, located on the surface of the tip of the needle of the sewing machine, corresponds to 4 to 6 classes of cleanliness, using non-sewing machine needles N 70 - 170 N, respectively, with diameters of 0.7 to 1.7 MMK and with the angle at the vertex at the tip of the edge of the 35o, 45o, 55o.
FIELD: light industry, in particular, manufacture and usage of sewing needles which may be used in clothing manufacture, everyday and household services, medicine, printing industry and other fields where stitch formation is performed using needle.
SUBSTANCE: needle has thread eyelet formed as cavity provided with helical recess which is opened upon rotation of eyelet. Said recess has widened portions.
EFFECT: reduced labor intensity in operation and wider operational capabilities and range of needles.
FIELD: needle for hand working, preferably designed for weak-sighted people.
SUBSTANCE: hand-held sewing needle has rod provided with arc-shaped curved portion and having one end sharpened and other end provided with eyelet having mutually spring-biased side cheeks and cut terminating in wedge-shaped widened portion at needle end. Eyelet cut is positioned in plane of arc-shaped curved portion of rod. Curved portion of rod is characterized by following parameters: distance from chord to point of arc-shaped curved portion maximally remote from chord is 1-6 mm. Sewing needle of such design enables easy and successful execution of work connected with putting of thread into needle eyelet by weak-sighted people.
EFFECT: simplified construction and wider range of hand-held sewing needles.
FIELD: textile industry.
SUBSTANCE: sewing machine needle consists of a shank, a thread passage groove, faces, ribs, an eye and point of the needle, which is made in the form of a triangular pyramid with the bottom made in the form of an equilateral triangle. At that, side ribs of the pyramid are made in the form of a tractrix-shaped concave curve, or its faces are concave.
EFFECT: reducing material deformation and increasing needle service life.