Method of production of multilayered mineral-cotton items

FIELD: textiles.

SUBSTANCE: present invention relates to production of mineral-cotton items, mainly multilayered items. The method involves making a mineral-cotton mat, moving it, slitting the mat into strips across the width, changing the shape and dimensions of the cross section of the strips, stacking the strips, moving them together and hardening. Before stacking ((n-1), where n is the number of strips, cut from the mineral-cotton mat) the strips are twice turned about their longitudinal axes by 180 degrees. After each turn, the direction of movement of the said strips in the plane of the mat is changed by an angle 180>α>0 degrees. Angles α, which characterise change in direction of movement of each strip, are equal to each other.

EFFECT: simplification of the process of making multilayered mineral-cotton items.

1 dwg

 

The invention relates to the production of mineral wool products, preferably layered.

Known methods of manufacturing multi-layer mineral wool products [Gramolini, Ulanov. Mineral wool insulation and their application in the harsh climate. HP: stroiizdat, Leningrad branch, 1981, pp.31-34]. In this way the generation of layered mineral wool products is carried out by horizontal slitting mineral wool carpet on the strip thickness, a corresponding change in the shape and size of the cross-section of these bands, they are laid on each other and bonding by curing the binder.

The disadvantage of this method is the limited technological capability to change the shape and size of the cross section of the obtained bands, especially in the case of the need to reduce the width of the side bands. When laying strips of different width on each other and their connection turns out mineral wool product with a different width of the layers, which reduces the quality of the mineral wool products. Another disadvantage of this method is to obtain strips with different structure and mechanical properties, as the strips are cut from different parts of the carpet height. Another obvious drawback of this method is rather complex technology longitudinal horizontal re is CI carpet layers, requiring fine adjustment of the position of the cutter for receiving layers of the desired thickness. This limits the potential of this method for obtaining high-quality multi-layer mineral wool products.

Thus, the main disadvantages of this method are the limited technological capabilities to ensure the quality of the mineral wool products.

The closest in technical essence and the achieved effect is a method of manufacturing a cured non-woven cloth of wool carpet [RF Patent №2152489, IPC WV 1/52, EV 1/78, WV 27/12, D04M 1/70, IS 2/16. "A method of manufacturing a cured non-woven cloth of wool fiber and a device for its implementation", publ. 10.07.2000,].

In this way the generation of layered mineral wool products is carried out by obtaining mineral wool carpet, move, longitudinal cutting of the carpet into strips, changes to the shape and dimensions of the cross-section of the strips before or after slitting, stacking lanes at each other, their joint movement and curing.

The disadvantage of this method is that they require rather complicated and bulky technology transfer bands of unlimited length from a position of being in the same plane in the position of laying in the foot.

The task image is the shadow is to simplify the technology for multi-layer mineral wool products.

This object is achieved in that in the inventive production method of multilayer mineral wool products, including the production of mineral wool carpet, moving, cutting the carpet into strips across the width, change the shape and size of the cross-section strips, laying strips at each other, their joint moving, curing, according to the invention before laying (n-1) strips of double-turn around their longitudinal axes at an angle of 180 deg., after each rotation, the direction of movement of these bands in the plane of the carpet change on the angle 180>α>0 deg., moreover, the angles α, which characterizes the change in the direction of movement of each strip, equal, where n is the number of strips cut from a wool carpet.

Double implementation of turn lanes around their longitudinal axis at an angle of 180 deg., but one moving without rotation, in combination with a change in movement direction at the angle α provides the installation strips one above the other in one line. The limiting angle α>0 deg. allows you to change the position of the strips without breaking their continuity, or rather without breaking their edges. The second limitation is due to the fact that when the angle α=180 deg. the strip will change the direction of movement on the opposite, eliminating their installation in position one above the other.

Application of the proposed CSP is both composes multi-layer carpet with a minimum number of technological operations in one compact continuous production line and allows you to get a multi-layered mineral wool product high quality.

Thus, the application of the proposed method allows to significantly simplify the production technology of multilayer mineral wool products.

The proposed method of production of a multilayer mineral wool products is illustrated in the drawing, which illustrates the process of obtaining the mineral wool carpet layered mineral products.

Consider the technology to produce three-layer mineral products width b of the mineral wool carpet width Century

Mineral wool rug, 1 wide with a binder from the chamber fiber-deposition is transmitted to a moving conveyor (not shown) and is fed to the slitting mechanism 2, by which the mineral wool carpet 1 get three bands 3, 4, 5 width b. Next band comes on the further processing where, for example, are changing their thickness and density. Then use the guide rollers 6, 8 lanes 3 and 5 rotate around their longitudinal axis at an angle of 180 degrees. simultaneously changing the direction of movement of the strip 3 at an angle α1=135 deg., and strip 5 at an angle α2=90 deg. Band 4 is moved without changing the direction of movement. When moving lanes 3 and 5 again turn around their longitudinal axis at an angle of 180 degrees. and change the direction of movement of the floor is si 3 angle α 1=135 deg., and strip 5 at an angle α2=90 deg. This ensures the installation of the strips 3 and 5 on the strip 4. Next band 3', 4', 5' synchronously move, stack on each other and served in the chamber of curing on aggregates of longitudinal and transverse cutting to obtain mineral products in the form of strips and plates (not shown).

Thus, the proposed method allows the generation of layered mineral wool products on maloperations, compact production line.

In ongoing research and development work to create a prototype of a technological line for the production of multi-layer mineral wool products.

Method of manufacturing laminated mineral wool products, including the production of mineral wool carpet, moving, cutting the carpet into strips across the width, change the shape and size of the cross-section strips, laying strips at each other, their joint moving, curing, characterized in that before laying (n-1) strips of double-turn around their longitudinal axes at an angle of 180°after each rotation, the direction of movement of these bands in the plane of the carpet change on the angle 180>α>0°, and the angles α, which characterizes the change in the direction of movement of each strip, equal IU themselves, where n is the number of strips cut from a wool carpet.



 

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