TWM556631U - Filter - Google Patents

Abstract

A screen comprising a plurality of yarns interlaced with each other along an axial direction and a transverse axis perpendicular to the axial direction, at least a portion of the yarns respectively having a line body, and a plurality of yarns respectively connected to the line body and An extension of the wire body bulging toward the outside, each of the extensions being monofilament-shaped, and each of the extensions forms an aperture between each of the connected wire bodies. The use of a portion of the yarn is provided with an extension of the wire body toward the outside, which can increase the adhesion area of the screen and improve the filtering effect.

Description

Filter

The present invention relates to a filter device, and more particularly to a filter screen suitable for filtering air.

The filter screen generally used for filtering air is only interwoven by simple plastic material fibers, and the density or multilayer stacking of the plastic fiber fibers is adjusted to improve the filtering effect.

However, if the fiber weaving density or the multilayer stack is increased in order to produce a better filtering effect, not only the manufacturing cost is increased, but also the overall weight of the filter is increased.

Moreover, by increasing the fiber weaving density or multi-layer stacking, the resistance to air passage is increased, which affects the performance of the air-conditioned cold room.

Accordingly, it is an object of the present invention to provide a screen that produces a better filtration effect without increasing manufacturing costs.

Thus, the filter screen comprises a plurality of yarns which are interlaced with each other along an axial direction and a transverse axis perpendicular to the axial direction, at least part of the yarn. Each of the wires has a wire body, and a plurality of extensions respectively connected to the wire body and embossed outwardly from the wire body, each extension being monofilament-shaped, and each extension being connected to the connected wire body A pore is formed.

The utility model has the advantages that the yarn is provided with an extension portion which is embossed outward from the wire main body, and the adhesion area of the filter mesh can be increased, and the arrangement of the pores can also allow the air to pass smoothly, and Can improve the filtering effect.

10‧‧‧Yarn

Y‧‧‧Axial

X‧‧‧ weft axis

11‧‧‧ line subject

111‧‧‧Multifilament

12‧‧‧Extension

13‧‧‧ pores

1‧‧‧ warp group

2‧‧‧ Weft yarn group

20‧‧‧Mesh

10’‧‧‧Yarn

14'‧‧‧core yarn

15'‧‧‧coating

10"‧‧‧Yarn

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a schematic plan view of a first embodiment of the present invention; FIG. 2 is a partial enlarged view of FIG. Figure 3 is a cross-sectional view taken along line III-III of Figure 2; Figure 4 is a plan view of a second embodiment of the filter screen of the present invention; and Figure 5 is a third embodiment of the filter screen of the present invention A schematic cross-sectional view.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, a first embodiment of the filter screen comprises a plurality of yarns 10 made of PP, PET, etc., and the yarns 10 are respectively perpendicular to the warp beam along an axial direction Y and a warp beam. Interlaced to the weft axis X of Y, the yarns are 10 points There is a first wire body 11 and a plurality of extension portions 12 respectively connected to the wire body 11 and embossed outwardly from the wire body 11 , the wire body 11 being composed of a multifilament 111 having a small wire diameter (see FIG. 3 ). Each of the extensions 12 is monofilament-shaped, and each of the extensions 12 forms an aperture 13 between each of the connected wire bodies 11.

The yarns 10 in this embodiment are blown by wind pressure so that the extensions 12 can lie outwardly from the corresponding wire body 11 and thereby form the extensions 12 and the apertures 13 .

In the first embodiment of the present invention, all of the yarns 10 extending in the axial direction and the Y-latitudinal axis X have a wire main body 11, an extension portion 12 and an aperture 13. Therefore, the plurality of meshes 20 formed by the yarns 10 interlaced in the axial direction Y and the weft axis X are inserted into the plurality of meshes 20. When the filter is installed and positioned, and the air is forced to pass through the filter, in addition to using the wire body 11 to adhere dust and debris in the air, the use of the extensions 12 can increase the filtration area and produce better filtration. effect.

That is to say, under the same conditions as the number of yarns of the existing filter screen, the present invention utilizes the yarns 10 to have the extension portions 12, so that more dust and debris can be collected. Therefore, the same or better effect can be achieved without increasing the number of yarns, increasing the manufacturing cost, increasing the overall weight of the screen, and increasing the resistance to air passage. Further, as shown in FIG. 3, since the line main body 11 is composed of a multifilament 111 having a small wire diameter, the wire main body 11 itself also has a multifilament 111 having a small wire diameter. There is filtering. Compared with the existing round monofilament itself, it has a considerable wire diameter and does not have a filtering effect, and the filtering effect of the novel is better.

It is worth mentioning that the filter screen of the present invention can be made of PP, PET, etc., and has good structural strength after the completion of knitting, and the filter screen is made into a flat shape according to actual needs. Or a hundred-fold cylindrical shape, which has better stiffness. Corresponding to the existing one-fold cylindrical filter mesh with paper fiber, a support frame must be added, the structure will be simpler and the cost will be lower. In addition, the filter screen of the present invention can adopt different weaving methods according to different filtering requirements, and is not limited to the flat weaving method of the above embodiment. Moreover, compared with the existing filter screen, the filter screen of the present invention has a folding function, and is easy to shape after folding, and is also convenient for folding and transporting.

As shown in FIG. 4, a second embodiment of the filter screen comprises a plurality of warp yarn groups 1 extending along the Y-axis and spaced apart along the weft axis X, and most of them extend along the weft axis X, respectively. Each of the warp yarn sets 11 is disposed at intervals along the axial direction Y, each of the warp yarn sets 11 having at least one yarn 10 having the wire body 11, the extensions 12 and the apertures 13, and at least one of the yarns 10 An extension 12 and a yarn 10" of the apertures 13. Each of the weft groups 2 has at least one yarn 10 having the thread body 11, the extensions 12 and the apertures 13, and at least one of which has no The extensions 12 and the yarns 10" of the apertures 13. For example, if each warp yarn group 1 has four yarns, one, two or three yarns 10 may have a structure of the wire main body 11, the extension portion 12 and the pores 13 (this embodiment adopts one strip) Yarn 10 has The structure of the wire body 11, the extension portion 12, and the apertures 13). If each of the weft groups 2 has four yarns, one, two or three of the yarns 10 may have the structure of the wire main body 11, the extension portion 12 and the apertures 13 (this embodiment uses one yarn 10 having The structure of the wire body 11, the extension portion 12, and the apertures 13).

As shown in Fig. 5, in a third embodiment of the present invention, a portion of the yarn 10 has a wire body 11, an extension 12 and an aperture 13, and another portion of the yarn 10' has a core yarn 14' and a cover. The core layer 14' is provided with a coating layer 15' on the outside of the core yarn 14'. The core yarn 14' may be made of a material such as PP or PET. The coating layer 15' may be made of PE, PET or the like, and the coating layer 15' may be selected. The melting point is lower than the core yarn 14'. Then, when the yarns 10, 10' are interlaced with each other along the axial and weft axes, and then passed through hot pressing, the heating temperature is higher than the melting point of the coating layer 15' and lower than the core yarns. The melting point of 14' can be used to create a hot-melt joint with the coating layer 15', and each of the yarns 10' interlaced with each other is thermally consolidated to prevent the yarns from being entangled. 10, 10' is free after weaving, which can prolong the service life.

In summary, the embodiments of the novel filter screen have a simple overall structure, are easy to manufacture, and can achieve a better filtering effect, and can indeed achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

Claims (6)

A screen comprising: a plurality of yarns interlaced with each other along an axial direction and a transverse axis perpendicular to the axial direction, at least a portion of the yarns respectively having a line body, and a plurality of yarns respectively connected to the line body and The wire body is outwardly embossed with an extension, each of the extensions being monofilament-shaped, and each of the extensions forms an aperture between each of the connected wire bodies. The screen according to claim 1, comprising a plurality of warp yarn groups respectively extending along the axial direction and spaced apart in the weft axial direction, and a plurality of weft yarns respectively extending along the weft axial direction and spaced along the axial direction. Each of the warp yarn sets is composed of two or more yarns, each of which has at least one yarn having the wire body, the extensions and the pores, and at least one of the yarn groups The extensions and the yarns of the apertures. The screen of claim 2, wherein each of the weft groups is composed of two or more yarns, each of the weft groups having at least one thread body, the extensions, and the like a yarn of pores and at least one yarn that does not have the extensions and the pores. The filter according to claim 1, wherein the partial yarn has a core yarn and a coating layer coated on the outside of the core yarn, and the melting points of the coating layers are lower than the core yarns, and the like The yarns are interlaced with each other along the axial direction Y and the latitudinal axis X, and the temperature of the heating is higher than the melting point of the coating layers by hot pressing, and is lower than the melting point of the core yarns, so that the yarns can be covered. The layers create a hot melt bond and heat fusion is achieved at each of the intersections of the yarns interlaced. The screen of claim 1, wherein the yarns are blown by wind pressure to form the extensions and the apertures. The screen of claim 1 wherein the wire bodies of the yarns are combined by a plurality of monofilaments.