CS254676B1 - Welding wheel for ultrasonic welding of low density synthetic fiber textile filter materials \ t - Google Patents

Abstract

The solution concerns an ultrasonic attachment for welding textile filter materials made of organic microfibers based on chlorinated polyvinyl chloride, applied to a textile substrate. The device consists of a welding tool and an opposing welding disc. The welding disc is partly provided with a patterned surface on its outer circumference and partly with a smooth surface, which is terminated by a radius at the edge of the disc. The patterned surface of the disc ensures mechanical strength and serves to feed the material, the smooth surface ensures a hermetically sealed connection of the materials.

Description

The present invention relates to an ultrasonic additional device for welding textile filter materials made of organic microfibres based on chlorinated polyvinyl chloride applied to a textile substrate. The device consists of a welding tool and an opposing welding disc. On its outer periphery, the welding disc is partly provided with a patterned surface and partly with a smooth surface which is terminated by a radius at the edge of the disc.

The sample surface of the blade provides mechanical strength and serves to feed the material, the smooth surface ensures a hermetically sealed joint of the materials.

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The present invention relates to a welding wheel for continuously ultrasonic welding of textile filter materials made of organic microfibres based on chlorinated polyvinyl chloride, applied to a textile substrate.

In the manufacture of filter cartridges for dust respirators, analytical filters and industrial filters for collecting solid and liquid aerosols in the form of dust, fog, smoke, etc., the materials used from organic microfibres based on chlorinated polyvinyl chloride applied to a textile substrate have been by classic sewing or gluing. The filter materials used have a low content of synthetic fibers, making it impossible to use the ultrasonic welding technique of the known and commonly used welding wheels.

These drawbacks are largely eliminated by the ultrasonic bonding of the filter materials using the welding wheel of the invention. SUMMARY OF THE INVENTION The present invention relates to a welding wheel for welding low-fiber textile filter materials, characterized in that it has a smooth surface on its outer periphery, at least 1/3 of its width, a radius-terminated edge, and a patterned surface for the rest. The significance of the welding wheel thus designed is that the exemplary welding wheel surface provides sufficient bond strength for the welded materials and at the same time serves to feed the material under the welding tool. The smooth surface of the welding wheel ensures a hermetically sealed joint of materials, while the radius at its edge creates a smooth transition from the uncooked portion of the filter to the weld without the risk of material slipping. The advantage of such a joint is that it does not require any additional material (threads, glue ...),

Ultrasonic welding eliminates labor and improves the working environment (adhesive fumes).

A welding wheel for continuously ultrasonic welding of low-fiber textile filter materials according to the invention is exemplified in the attached drawing, wherein FIG. 1 shows a welding tool and a welding wheel.

In the conventional configuration of a continuous welding machine, a welding tool 1 is placed in the upper part, below which the rotatably mounted welding wheel 2 is located opposite. The welding wheel 2 is provided with at least 1/3 of its width on its outer circumference with a smooth surface 4. The patterned surface 3 can be a relief of different density and shape, depending on the properties and dimensions of the materials to be welded. The width of the patterned surface 3 and the smooth surface 4 as well as the size of the radius 5 are also dependent on the depth and other properties of the welded materials. The welding wheel can be made in one piece or for production reasons composed of several parts.

The function of the welding equipment is as follows:

The materials to be welded (not shown in the drawing) are inserted into the gap between the welding tool 1 and the welding wheel 2. By approaching the welding tool 1 to the welding wheel 2 on the welding gap, ultrasonic energy causes welding of the materials. materials under the welding tool.

SUBJECT

Welding wheel for continuous ultrasonic welding of textile materials with low content of synthetic fibers, characterized in that the surface of the wheel (2) is on its outer perimeter for at least 1/3 of the drawing sheet

Claims (1)

254676 FIG