Method of making wire mesh

 

(57) Abstract:

Usage: in jewelry production. The inventive silver wire wound on the mandrel. The obtained spiral stretch in the longitudinal direction and fitted so that the longitudinal axis are parallel one with respect to another and intertwine one helix to another through messages one of the spirals discrete swinging movement about its axis, and the second (stationary spiral) - in left and right hand directions alternately, hold the free end of the rotating spiral in the plane of the stationary spiral. The total number of spins in one direction must be larger than the other, and the angle of rotation of the rotating spiral is equal to 360 1080 . 1 Il.

The invention relates to the processing of wire in jewelry production, in particular to the manufacture of wire fabric (mesh) knitting.

The known method (1) manufacture of wire mesh for jewelry, which includes the following:

left and right hand winding of wire on the mandrel;

the receiving coils;

the parallel arrangement of the coils of one unit in the horizontal plane defined is irenie spirals of one block relative to the coils of another block while moving the coils in the axial direction (to the first clutch of coils of different blocks);

cutting the ends of helices.

The main disadvantage of the method (1) the impossibility of making a grid of wires with a diameter of 0.2-0.3 mm as an independent jewelry decoration. This is due to two factors:

spiral, woven from wire of small diameter, curved in an unpredictable way (due to the presence of internal stresses and, therefore, may not be parallel to a flat surface;

spiral, subject to the strand, have a pitch not exceeding a value of 0.8-1 mm, and the ability to save the specified step between the individual helices in the process of strand is extremely difficult.

With that said, joint synchronous rotation of all the spirals of one block around their axes and simultaneous axial displacement of the block prior to its engagement with spirals of another block virtually impossible, especially in technical and technological terms.

A known method of manufacturing a mesh of wire, in order to facilitate strand two blocks spirals, the blocks are placed at a given distance from each other, and in the process lay the cloth mesh move the reciprocating between blocks.

This known method of takimoto method is:

strictly parallel stacking of helices on a horizontal surface with retaining this provision in the strand;

the straightness of the spirals.

As it was stated above, due to the presence of internal stresses, deforming the spiral, last indefinitely curve, which actually excludes the applicability of the method for our purposes.

Known another method of manufacturing a wire grid, which in principle differs from the proposed method, however, may be of interest as a solution that matches the claimed common goal.

However, a common disadvantage of known methods of knitting the mesh is what the product is, as a rule, lack of flexibility (at best bent in one plane) and are mainly used as an auxiliary fastener elements, such as wristwatches, charms, favors, etc.

Taking into account the similarity of some technological processes on knitting, wire mesh for the prototype accepted method [1] .

The aim of the invention is to improve the quality of the strand grids.

Another objective of the proposals is the creation of the mesh (cloth), m can be achieved, however, that way, including the operation of winding one-way spiral and subsequent strand spirals between the strand produced by the message of one of the spirals discrete swinging movement around the axis while holding the free end of the rotating spiral in the plane of the other of the spiral and rotate in the direction exceeding in total against rotation in the opposite direction.

Another hallmark of this method is that the angle of the left and right hand rotation swivelly spiral does not exceed 360-1080about.

Experimentally proved that the axial rotation of spirals within 360-1080aboutsince this angle eliminates as a local deformation of the spirals, and the deformation of the latter by the length guarantees a reliable piece to capture all of the stationary coils of the helix, and in case of absence of one of the coils, allows its re-acquisition under the following swinging movements reported swivelly spiral.

The drawing shows a stationary spiral "and" laid on a flat surface, twisted spiral "b".

P R I m e R 1 (a specific implementation of the method). For poucelina was tied to a flexible mandrel (steel lived thickness 0.80 mm) in a length of 30 cm After removing the wire from the mandrel, it was stretched in the length of 10.5-11.0 cm (manually) and cut into two parts. One part of the spiral was placed on a flat surface, its first coils engaged with the first rotating coils of the spiral, then the last reported intermittent, reciprocating rotational motion at an angle of not more 360-1080about. The rotation was reported in such a way to provide visual control of the correct strand spirals. However, controlled the equitable promotion of rotating spirals forward (i.e., controlled by the total dominance of rotation in one direction on rotation in the opposite direction).

An important factor to improve the performance of the strand and the reliability of the capture of all coils is the fact that during the strand front end of the rotating spiral continuously sent, i.e., the fingers of the free hand is held in the same plane as the stationary spiral.

P R I m m e R 2 (a particular implementation of the method). To obtain the source material with a diameter of 0.24-0.25 mm silver wire (sample 999% ) with a diameter of 1.5-1.7 mm was repeatedly subjected to fileroot and after reaching a diameter of 0.24 mm purchase is Tosti original spiral is the result generated by it naklab when fileroot. After winding a wire with a diameter of 0.24 mm with the diameter of 0.40 mm, were selected in the first spiral, the length of which 3.4-5 times the original length of the winding. The spiral is obtained by stretching in the length due to surface hardening preserves straightness and hardness, which excludes the possibility of any deformation when the strand. The grid obtained by the method described above, it is an independent jewelry filigree work. This grid has the flexibility ("breathing") along coordinate axes, fluent holds at the surface of the enamel, easily soldered on individual links.

The results of experiments to identify optimal manufacturing process conditions of the original spirals depending on the fineness of silver are summarized in the following table.

The table shows that with increasing wire diameter correspondingly increase as the pitch of the helix and the diameter. For example, when the diameter silver wire (sample 916% ) in the 0.3 mm diameter mandrel must be in the range of 0.8-0.85 mm to ensure the conditions of mobility of the grid as a whole. However, this grid is not marketable as a standalone piece of art. Mesh, woven from spirals diameter 0.3-0.32 mm, the C-in a relatively higher amount of cells.

Practical is also a strand of silver wire grid (sample 583) diameter 0.20-0,22 mm

Due to the high percentage of copper, this wire often breaks down and it is difficult sbivaetsya. However, if you accidentally education "lamb" he practically is not corrected even after stretching wound into a spiral, which ultimately is the cause of zabrakovanie this piece of wire.

It should also indicate the difficulty of working with thin filamentary material, as well as the need for frequent local heating grid in the parts where you have installed other items of jewelry.

Research by found that the optimal is the manufacture wire mesh jewelry made of silver fineness 999% , when the wire diameter equal to 0.23-0.25 mm, and the diameter of the mandrel - 0,39-0,41 mm (56) USSR Author's certificate N 368915, CL 21 F 27/02, 1973.

METHOD of MAKING WIRE MESH mainly as jewelry, including the manufacture of coils, the location of the longitudinal axes of the spirals before strand in a horizontal plane in parallel one with respect to another and the subsequent strand by successive wplite is etenia the first helix in the second and subsequent spirals carried out by the message of one of the spirals discrete, swinging movement about its axis and the other stationary spiral in left and right hand directions alternately, hold the free end of the rotating spiral in the plane of the stationary spiral, while the total number of spins in one direction more than another, and the angle of rotation of the rotating spiral is equal to 360 - 1080o.

 

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FIELD: agriculture.

SUBSTANCE: invention is related to protective nets, intended for reinforcement of slope against fall, and to methods of their manufacturing. Net is made with diagonal plaiting and is woven of twisted wire strands bent in the shape of spirals, armature bundles or cords, which comprises two or more wires or twisted wire strands of steel. Method for manufacturing of protective net consists in the fact that twisted wire strand, cord or armature bundle is fed with a certain angle of lift at least to one bending mandrel of device and is bent at a certain length around bending mandrel approximately by 180, then repeatedly moved along their longitudinal axis to bending mandrel at a certain length, bent accordingly around bending mandrel by 180 until this twisted wire strand, cord or armature bundle does not achieve shape of spiral, besides wire strand bent in the form of spiral, cord or armature bundle are woven together with the second twisted wire strand, cord or armature bundle bent in the form of spiral, and this is repeated until net is made with diagonal plaiting of desired value.

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