RU2010059C1 - Device for producing relief material - Google Patents

Abstract

FIELD: textile engineering. SUBSTANCE: device has rod 1 of semicylinder shape, lower and upper parts end in surfaces which have 7-8 and 6 surface finish classes respectively. EFFECT: facilitated manufacture. 5 dwg, 2 tbl

Description

 The invention relates to device designs.

 A known design of a needle for sewing machines is a Singer needle, consisting of a rod, including a thinned part that goes to the tip, a bulb that ends with an end face. The eyelet is located at the tip, which serves to thread the thread.

 Its disadvantage is that it can only carry out the function of stitching tissues, without changing its relief.

 The closest in technical essence to the invention is a device for obtaining a relief on the material, made in the form of a rod with one working end, the other end is fixed in the needle bar of the sewing machine [1].

 Its disadvantage is that the fabric relief can only be created with the participation of bobbin and shuttle threads.

 The aim of the invention is the expansion of technological capabilities by obtaining relief of various densities.

 This is achieved by the fact that a two-functional device formed of a metal rod, the blunted area of each working end of which is perpendicular to the longitudinal axis of the device’s rod, has the shape of a semicircle bounded by the perimeter of an edge formed from an arc of 0.51-1.98 mm, closed by the ends with a chord coinciding with a diameter equal to 0.35-1.6 mm, and a roughness corresponding to 7-8 purity class, and one working end of the device is subjected to laser processing corresponding to 40-160 J pulse energy, the site of which has a roughness of class 6 cleanliness.

 These distinguishing features are significant, since no signs identical or equivalent were found in the studied sources of patent and scientific and technical information.

 In FIG. 1-4 show the design of a two-function device formed from a metal rod; in FIG. 5 (a-d) - types of the obtained relief on tissues of a certain thickness and density.

 In FIG. 4 a close-up is a graphical depiction of the profiles of sites with a rough-grip surface of each working end of a two-function device of the proposed design, as can be seen from the drawing, in the axial section there is a cylindrical shape.

 The type of rough-grasped surface is arbitrary (Anuryev V.I. Types of surface directions. Handbook of the designer-mechanical engineer ", T. 1., ed. 6th, 1982, p. 275, table 2).

 The proposed device (a device with a diameter of 0.4-0.8 mm, in operation, uses a plastic cap that is worn as a cover on the end that is fixed in the needle holder, and with a diameter of 1-1.6 mm is held in the needle holder without cap) consists of a rod 1, the lower working part of the device ends with blunting 2, the upper - also the working part of the device ends with blunting 3.

 The basis is taken of devices formed from a metal rod with a radius of 0.2-0.8 mm.

 Metal rods are made by casting with marks (marking) for cutting off, that is, separation of devices from each other, equal to the length of the needles of the sewing machines or equal without a tip. It turns out a device with two working ends, on which blunt areas are formed by chopping (separating) one device from another. One of the working ends of a two-function device after chopping is subjected to laser pulse processing, as a result of which the cooled molten metal forms a break in porosity upon cooling and the appearance of increased tenacity on the surface of the site. The resulting roughness at each working end of the platform of a two-function device is a determining indicator for the formation of relief on fabrics of the required thickness and density by eliminating the use of fixing the relief with threads, and the values also include the diameters of the platforms of each working end and the length of the arc forming the perimeter of the edge of the platforms located perpendicular to the longitudinal axis of the rod of the device.

 It was experimentally established that the optimum values are the diameters of the blunt pad equal to 0.35-1.6 mm and located perpendicular to the longitudinal axis of the device rod at each working end, the magnitude of the arc is 0.51-1.98 mm, which ends with a diameter of the site, forming the perimeter of the edge corresponding to the 7-8 class of purity, and processed by a laser with a pulse energy of 40-160 J, the second working end, the site of which is equal to 6 class of cleanliness.

 The obtained data on the optimal parameters of a two-functional device are given in table. 1.

 Regarding the issue of a rough-grasped surface in numerical data, in accordance with generally accepted standards, Table. 2.

 Choosing the values of d and l of a two-function device, you can get a relief on the tissues of the required thickness and density. At various values of these values, the relief of the fabric is expressive, the fabric is not injured by its rupture.

 A dual-function device operates as follows, depending on which working end the relief on the fabric of a certain thickness and density is carried out.

 When pressing and piercing each working rough-grasped end of the device onto the front or wrong surface of the fabric of a certain thickness and density, the fabric threads are tensioned, starting towards the puncture site in all zones, and the fabric threads break off on the back (lower) side of the fabric, banding and fluffiness, which is an additional aesthetic element in the formation of relief. The tension of the fabric threads, turning into a collection, increases at the time of puncture and persists after it.

 When the threads of fabric are engaged by the working end of the laser-treated device, strong tightening is carried out as “cemented”, not prone to the slightest melting of the relief even with strong stretching of the fabric, strong torsion of warp and weft at the puncture sites, the structure of the fabric thread changes on the wrong side (into fluffiness), which, along with cliffing and ringing, fluffs so much that it forms a "plug" (congestion, obstacle) in the puncture places, and thereby creates an obstacle to straightening and t. k. a return happening fabric yarns in a starting position, until the contraction.

 It should be noted that the formation of pile on the surface of the fabric of the warp or weft threads depends on the perpendicular piercing to the warp or weft threads: if the perpendicular direction of the puncture line to the warp threads, then the pile is formed from warp threads, if to the weft threads, then the pile formation is formed from threads duck. If laying from the front side, then on the wrong side of the warp, if on the wrong side, then on the front pile of weft threads.

 Thus, under the influence of each blunted working end of a two-function device, a relief is obtained on tissues of a certain thickness and density, the varieties of patterns of which are also shown in FIG. 5.

 5 (a) - the relief is formed on tissues of a certain thickness and density, the puncturing lines are directed perpendicular to the warp threads, a rough-grasped surface of the working end of the device subjected to laser processing.

 5 (b) - view of the relief from the wrong side, in the places of puncture the fluffiness of the warp threads. The puff is, as it were, "cemented" into the fabric; it does not straighten when the fabric is stretched.

 5 (c) —the view of the obtained relief is formed by a rough-grasping working end of the device processed mechanically (chopping off). The piercing lines are directed perpendicular to the weft threads.

 5 (g) - view of the relief from the wrong side: in places of puncture, breakage and banding of weft threads.

 When forming a relief with a two-function device, fabrics of a certain thickness and density are used: dense synthetic silk, cotton fabric, staple and other fabrics.

 The resulting relief using the proposed design (two-function device) on fabrics of a certain thickness and density can be used in light industry in the manufacture of various garments, as well as in combination with finishing materials.

 Thus, the proposed design (two-functional device) performs two functions: obtaining a relief of various types (on fabrics of a certain thickness and density) using the wrong side (fluffiness, breakage, banding of warp and weft) as the face by changing the structure of the warp and weft in places of puncture, i.e., the formation of a pile, which allows you to expand the assortment of manufactured products at minimal cost. (56) 1. U.S. Patent No. 4,353,158, cl. D 06 H 18/00, 1982.

Claims (1)

 DEVICE FOR PRODUCING RELIEF ON MATERIAL, made in the form of a rod with one working end, fastened in the needle holder of the sewing machine, characterized in that, in order to expand technological capabilities by obtaining a relief of different density, the rod has the shape of a half-cylinder, Moreover, both ends have a surface that is perpendicular to the longitudinal axis with a semicircle diameter of 0.35–1.6 mm and a roughness corresponding to 7–8 purity classes of one working end and 6th class of purity of the second Hours of operation about toptsa received lazepnoy obpabotkoy Radiation enepgiey, pavnoy 40 - 160 J.

Images