US 5,501,764 A · Apparatus for bonding textile sheet-like structures

Abstract

An apparatus for bonding textile sheet-like structures is disclosed. In the bonding of textile sheet-like structures (10, 11) it is very important, especially in the case of sensitive fabrics, to accurately control the pressure which is exerted. In conventional apparatuses of this kind, in which the pressure roller (23) and the contact roller (24) have an essentially -solid sleeve, this pressure is difficult to control because the thickness of the sheet-like structures (10, 11) which are to be processed varies. This results in pressures which are either too high or too low so that either the bonding is insufficient or the outer appearance of the sheet-like structures (10, 11) which are to be bonded is impeded. In order to avoid these disadvantages, the pressure roller (23) of the apparatus according to the invention has a tubular sleeve (26) which is resiliently deformable and which is subjectable to compressed air from a cavity (37) inside the pressure roller (23). As a result, the sleeve (26) always exerts a pressure on the sheet-like structures (10, 11) to be bonded which corresponds to the inner pressure in the cavity (37), without being affected by the thickness of the sheet-like structures (10, 11) or other influences. The apparatus according to the invention is particularly suitable for bonding outer fabrics made of (synthetic) micro-fibres with interlinings.

Claims12

Dependent claims

In an apparatus for bonding textile sheet-like structures and having a heating station, at least one pressure device which follows the heating station, and at least one transport conveyor, the improvement wherein:

the transport conveyor has two adjacent covering means (19, 20;
57, 58) between which the sheet-like structures are transportable through the heating station and into the pressure device;
the pressure device comprises a pressure roller (23, 61) having an outside adjacent one of said covering means, and a contact means (24, 51) having an outside adjacent the other of said covering means;
the pressure roller comprises a resiliently deformable sleeve which is subjectable to pressure from inside the sleeve by means of a fluid to maintain a constant and uniform pressure on each sheet-like structure passing between said pressure roller and said contact means;
the sleeve is cylindrical, the pressure roller (23) has a solid roller core (25) which is at least partially surrounded by the cylindrical sleeve (26), and the cavity (37) is formed between the sleeve (26) and the roller core (25) by a circular necking in the roller core (25);
the sleeve (26) is releasably connected with its opposed edge portions (35) to the roller core (25) in a sealing manner;
and
the sleeve (26) is connected to opposed end portions (27) of the roller core (25) which delimit the central necking of the roller core (25) on both sides and have a greater diameter than the necking.

5 more elements

In an apparatus for simultaneously bonding together two or more heated textile sheet-like structures of the same or different thicknesses and arranged in stacks of different heights, said apparatus having a heating station, at least one pressure device which follows the heating station, and at least one transport conveyor for successively conveying the stacks through the heating station and to the pressure device, the improvement for applying an identical pressure to the two or more heated textile sheet-like structures arranged in a stack, regardless of said same or different thicknesses, wherein:

the transport conveyor has two adjacent covering means (19, 20;
57, 58) between which the sheet-like structures are transportable through the heating station and into the pressure device;
the pressure device comprises a pressure roller (23, 61) having an outside adjacent one of said covering means, and a contact means (24, 51) having an outside adjacent the other of said covering means, said pressure roller and said contact means defining therebetween a gap between which said stacks of sheet-like structures pass;
the pressure roller comprises a resiliently deformable tubular sleeve which is subjectable to a constant pressure from inside the sleeve by means of a fluid to maintain, regardless of the thickness of the structures and regardless of the height of said stacks, a constant and uniform bonding pressure on each sheet-like structure passing through said gap between said pressure roller and said contact means, said tubular sleeve being deformable by said sheet-like structures, but said sheet-like structures being non-deformable by said tubular sleeve;
and
said tubular sleeve comprises a resiliently deformable fabric having a coating which is impermeable to air.

3 more elements

Dependencies are inferred from the claim text.

Apparatus for bonding textile sheet-like structures

Life of this patent

Apparatus for bonding textile sheet-like structures

Life of this patent

Abstract

Claims12