RU1770479C - Bump footwear base making method - Google Patents

Abstract

Usage: the invention relates to the shaft of the flax-felt industry, in particular to the manufacture of the base of shaft shoes, and allows to reduce the cost while improving the quality of the base. SUMMARY OF THE INVENTION: a multi-thickness fibrous web is formed along its center line by spreading the webs with transducers at different widths of the fibrous web, which are then laid on top of each other and fed into a needle-punched machine. Reamer blanks are cut out, the tip of the bootleg transverse to the axis of symmetry of the different thickness fibrous canvas, and the bootleg heads are located on its thickened part. 1 ill.

Description

FIELD OF THE INVENTION This invention relates to a shaft of a flax and felt industry, in particular to the manufacture of a base for shaft shoes.

A known method of producing the base of shaft shoes, in which the details of the development of the base of the shoe and the set of the development of parts of the base of the shoe are formed from the fibrous canvas, followed by the manufacture of the workpiece by superimposing the details of the development and the set of development parts of the parts of the base of the shoe on top of each other, followed by folding the blank on the template and seal. One of the base scan parts is made equal to the full base scan, and the set of parts of the base parts of the shoe base is made to reduce the length of each subsequent set part, while the parts of the full base and the parts of the set of shoe base parts are the same thickness. Separate parts of the full-scan parts are superimposed on each other with the front edge offset in the vertical plane, and the set parts are placed on the parts of the full-scan parts in a checkerboard pattern with a vertical displacement of each subsequent part relative to the front edge of the previous part by an amount equal to the displacement of parts of the detail of a full base scan. Then, an additional compaction of the workpiece is carried out using a die (1).

The disadvantages of this method include the need to use a large number of dies, additional equipment and additional technological operations for its implementation, especially with a large length assortment of shaft shoes. The technology of this method does not allow obtaining a canvas that is uniform in strength, since the adhesion between the layers of the flooring is not strong enough.

The aim of the present invention is to reduce the cost of manufacturing shaft shoes and improve its quality while increasing production volume

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ska products at the same production facilities.

The stated and other goals are achieved in that in the known method for producing the base of shaft shoes in which the fibrous web is formed and compacted for needle-piercing and then it is cut, according to the invention, a different-thickness fibrous web is formed along its center line by at least carding on two widths of a fibrous canvas, where the size of the small width corresponds to 1/2 - 1/4 of the size of the larger width of the fibrous canvas, then the fibrous canvas of small and greater width is laid on top of each other and directed dissolved in needlepunched machine. On the resulting fibrous canvas of different thicknesses, the reamers of blanks are cut to the top of the shaft transverse to its axis of symmetry, with the heads of the shaft located on the thickened part of the fibrous canvas of different thicknesses.

The difference in thickness formed from two different widths of the webs (decks) in the canvas will be flared after passing through a needle punching machine, which will provide a smooth transition across the thickness of the canvas, by connecting layers of the webs in which the fibers of the flat material come together and mutually penetrate each other throughout the length of the canvas, including the edges of the small width of the canvas.

The study of known technical solutions in which there are features similar to those distinguishing the claimed solution from the prototype did not lead to the identification of such solutions. Therefore, we can assume that the proposed new technical solution has significant differences.

The drawing shows the layout of the sweeps of the base of shaft shoes on a canvas of different thicknesses.

A method of producing a base for shaft shoes is as follows.

From the sheds, the mixture is fed into the self-weights of the oglophobic aggregate carding machines. The fibrous canvas exiting from the carding machine, for example, grades 40-180-III, is directed to a comb transducer arranged in series with the carding machines and consisting of two conveyor systems.

The resulting web is laid out on a transverse conveyor located perpendicular to the system of longitudinal conveyors of the web transformer, forming a fibrous web with a larger width of 1800 mm.

The fibrous canvas emerging from another carding machine passes through similar aggregates and is laid out on a cross conveyor for a small width of 900 mm or 450 mm, for example, a width of 600 mm, which is optimal for 22-23 sizes of shaft shoes.

Then, in the process of transportation from two comb converters to a needle punching machine, a fibrous canvas of small width is laid on a fibrous canvas of a larger width, forming a different thickness fibrous canvas along its center line.

5 The conveyor obtained in this way with a different thickness of fibrous canvas is sent to a needle-punched machine, where as a result of piercing it with needles with notches fixed on the needle bar,

0 fibers of the upper layers are pulled into the lower ones and secured by friction forces arising between the fibers.

After the needle punching machine, the canvas is wound onto a roll on a winder 5 weighing up to 30 kg. The density of the resulting canvas of different thickness meets specified technological requirements, for example, 0.11 g / cm3.

Cutting the resulting thickness

0 canvases are carried out by flooring. Cut patterns are placed on a canvas of different thicknesses so that the shafts are oriented across its axis of symmetry, and the heads of the shafts are placed on its thickened part.

Using the proposed method for the production of basic shoes is also provides a reduction in the technological cycle and increases the culture of production for

0 by eliminating additional harmful technological operations and increasing the degree of automation and mechanization of the process.

Claims (1)

The claims 5 A method of manufacturing the base of shaft shoes, in which a fibrous canvas is formed by laying the webs in layers, followed by compaction of the latter with needle piercing, and reamers of the shaft shoe blanks are oriented to orient the shafts of the latter across the symmetry axis of the fibrous canvas, characterized in that, in order to increase product quality, they form a fibrous canvas having a different thickness along its width by laying out the process into at least two layers of different widths, where the size of the layer with a small width corresponds to 1 / 2-1 / 4 the size of the layer is wider, and overlapping the layer with a comb smaller widths per layer of wider widths, and when cutting the blanks, the heads of the legs are placed on the thickened part of the fibrous layer.