UA137757U - METHOD OF ASYNCHRONOUS HYDROVACUUM PULSATING FORMATION OF HEADWEAR HEADS - Google Patents

Abstract

Asynchronous hydrovacuum pulsating method of forming the heads of hats includes the placement of material on the perforated molding element, fixing, wetting, the formation of dynamic loads by PARS and vacuum. The molding is performed by force, sequential action of reciprocating motions in different directions to the semi-finished RARS in the upper part of the chamber with a frequency of 4-8 Hz at a variable base pressure of 0.026-0.098 MPa and oscillating movements of the vacuum in the lower part of the chamber with a frequency of 4-8 Hz with a base value of 0.032 MPa and a formation time of 65 seconds.

Description

The useful model belongs to the sewing branch of light industry, namely to the methods of forming parts of voluminous sewing products.

There is a known method of forming parts of voluminous sewing products in a liquid-active medium (LAMP) (|, which includes placing the semi-finished product on the lower cushion, fixing, moistening, vibroforming, drying and stabilization. The formation occurs due to the LAMP, which oscillates under the pressure of a pulsating air, which is regulated from 0.1 to 0.5 MPa, and vibroforming is performed by a membrane pneumatic drive that activates the rod together with the forming element and the sample, the forming force is created as a result of the RAS oscillations under the influence of pulsating air and the vibration of the forming element with the sample.

The disadvantage of this method is that the forces from above and below act synchronously and at the same time the semi-finished product is pressed against the forming element, which does not ensure the activation of the rough structure of the material and, accordingly, the quality of the formation.

The closest analogue in terms of technical essence and the result achieved to the proposed method is the method of forming parts of sewing products of a volumetric shape |21, in a liquid-active environment (water), which includes placing the product on a perforated forming element, fixing, moistening, formation by the action of a liquid-active working medium (PARS) with the use of vacuum pressure. Forming is carried out due to the forming force under the influence of RARS at a constant temperature of 20"C, which is created by a vacuum of 0.022 to 0.066 MPa in the lower part of the chamber.

The disadvantage of this method of forming is that the PARS layer from above and the vacuum from below press the semi-finished product to the forming element. which does not ensure the maximum use of the deformation properties of the fabric and, accordingly, high quality of formation.

The basis of a useful model is the task of expanding the technological capabilities of the nature of the force field in water.

The task is solved by the fact that the asynchronous hydrovacuum pulsating method of forming the heads of headdresses, which includes the placement of fixing the semi-finished product on the forming element, forming, drying and stabilization of the resulting form, according to a useful model, forming takes place in water due to the force created asynchronously by bilateral action reciprocating movements in the upper part of the camera from above

From RARS with a frequency of 4-8 Hz at a basic variable pressure in the range of 0.026-0.098 MPa in the lower part of the vacuum chamber with a frequency of 4-8 Hz at a stabilized value of 0.032 MPa and a formation time of 65 seconds.

Fig. 1 shows the distribution of the forming force during the asynchronous hydrovacuum pulsating method of forming the heads of headdresses.

In Fig. 2 shows the dependence of the coefficient of formability of the molded head of the headdress on the main parameters of the asynchronous hydrovacuum pulsating method of forming: a - on the RARS pressure; 6 - RARS pulsation frequency, c - vacuum pulsation frequency

The asynchronous hydrovacuum pulsating method of forming headgear heads using water as a working medium consists in the fact that the forming force, which is created asynchronously by the two-way action of reciprocating movements in the upper part of the chamber from above the RARS with a frequency of 4-8 Hz at a basic variable pressure in in the range of 0.026-0.098 MPa in the lower part of the vacuum chamber with a frequency of 4-8 Hz at a stabilized value of 0.032 MPa and a formation time of 65 seconds.

Experimental verification confirms that this method allows the formation of headdresses of sufficient quality.

The comparative analysis showed that the declared method of forming the heads of headdresses has advantages due to the use of asynchronous vibration in the upper part of the RARS chamber, and in the lower part of the vacuum chamber.

Sources of information: 1. Patent of Ukraine Mo 46767, IPC RObE 73/00, A41TN 5/00 Method of vibroforming of parts of voluminous garments in a liquid-active medium./ Kushchevskii M.O., Koshevko

Yu.V., Prybega D.V application 01.06.2009; published 11.01.2010, Byul.Me1, 2010 2. Patent of Ukraine Mo 66094, IPC 0БОбЕ 71/00 Vacuum-liquid method of forming parts of voluminous sewing products / Batarovska M.V., Kushchevskiy M.O application. 19.05.2011; publ. 26.12.2011, Bull. Mo. 24 from 12.26.2011.

Claims (1)

USEFUL MODEL FORMULA Asynchronous hydrovacuum pulsating method of forming headgear heads, which includes placing the material on a perforated forming element, fastening, moistening, forming by dynamic loads from the RARS and vacuum, which is characterized by the fact that the formation is performed due to force, by the sequential action of reciprocating movements in different directions to the semi-finished RARS in the upper part of the chamber with a frequency of 4-8 Hz at a variable base pressure of 0.026- 0.098 MPa and oscillatory movements of the vacuum in the lower part of the chamber with a frequency of 4-8 Hz with its basic value of 0.032 MPa and a formation time of 65 seconds. in RyaeaR" in daytime nn dexu deno ED : : 3 e 3 EZ i i i 7 MAR, M Fig. 1