CN2664630Y

CN2664630Y - Forming net for producing multi-layer flow guiding perforating film

Info

Publication number: CN2664630Y
Application number: CN 03231234
Authority: CN
Inventors: 黄振正
Original assignee: LIANCHENGXING ENTPR SHANGHAI C
Priority date: 2003-05-16
Filing date: 2003-05-16
Publication date: 2004-12-22
Anticipated expiration: 2013-05-16

Abstract

The utility model provides a forming net for producing multi-layer flow guiding perforating film, which comprises an inner net with a cave and an outer net arranged outside the inner net. The area of the cave on the outer net is larger than that of the inner net. The forming net of the utility model adopts the two layer net structure of the inner net and the outer net, therefore, level sense and convex pattern are embedded on the produced perforating film, thereby increasing the types of the perforating film and improving quality.

Description

Be used to make the forming net of stage construction water conservancy diversion making hole film

Technical field

This utility model relates to a kind of forming net, relates in particular to a kind of forming net of making stage construction water conservancy diversion making hole film that is applicable to.

Background technology

Making hole film is a foraminous material on a kind of film, and it has the effect of unidirectional seepage flow, is applicable in the products such as diaper, sanltary towel, Medical dressing.Making hole film generally is the forming net that utilizes a metal when manufacture process.This metal forming net is one cylindric (as 10 among Fig. 1), and the surface of metal forming net 10 cylindraceous is and has pentagonal or hexagonal hole (as 11 among Fig. 2).When making making hole film, the plastic sheeting 12 as raw material is overlayed on the outer surface of tubular metal forming net 10, plastic sheeting 12 is heated to softening point temperature, simultaneously, form negative pressure, thin film 12 is inhaled broken, and be attached on the net 10 at the inner surface of metal forming net 10.After treating the thin film cooling and shaping, peeling off promptly becomes the making hole film 13 that the funnel-form hole is arranged.

Fig. 3 shows the cross section figure of this kind forming net 10.As can be seen from Figure 3, the wall thickness of forming net 10 is uniformities, and the fenestra upper end that processes the making hole film that obtains with this metal forming net 10 will be in one plane, and the result of use of its product is general, and class is not high, and kind is comparatively single.

The utility model content

Therefore, the purpose of this utility model is to provide a kind of forming net that increases making hole film kind class and improve the making hole film result of use.

According to above-mentioned purpose, the forming net that is used to make stage construction water conservancy diversion making hole film of the present utility model comprises Intranet, has hole in described on the net, it is characterized in that, also comprise outer net, described outer net is arranged at the skin of described Intranet, and described outer online hole area is greater than online hole area in described.

Aforesaid forming net, described interior online hole is pentagonal or hexagonal, and described outer net is the pass pattern that straight line or curve constitute.

Aforesaid forming net, the area of described outer online hole be hole online in described area 3-17 doubly.

Aforesaid forming net, described forming net comprises multilamellar Intranet or outer net.

As mentioned above,, therefore, on the making hole film that produces, can embody stereovision and protruding various pattern, increase the kind of making hole film, improve class because forming net of the present utility model has adopted the two layers of mesh structure of Intranet and outer net.

Description of drawings

Describe the concrete structure of forming net of the present utility model in detail below in conjunction with accompanying drawing, wherein:

Fig. 1 is the sketch map of traditional manufacturing making hole film;

Fig. 2 is the floor map of traditional forming net;

Fig. 3 is the schematic cross-section of traditional forming net of Fig. 2;

Fig. 4 is the schematic cross-section of two-layered, formed net of the present utility model;

Fig. 5 is the floor map of two-layered, formed net of the present utility model shown in Figure 4.

The specific embodiment

As shown in Figure 4 and Figure 5, forming net of the present utility model is on the basis of traditional forming net 10 shown in Figure 2, increases one deck net 20 again.This layer net 20 is arranged at the skin of traditional forming net 10, so, in this utility model, traditional forming net 10 is called Intranet 10, will increase net 20 newly and be called outer net.The structure of Intranet 10 is similar to traditional forming net, and the hole 11 on it can be pentagonal or hexagonal.Certainly, also can use other the shape of having used traditionally.Also be provided with hole 21 on the outer net 20, just the area of this hole 21 is greater than the hole 11 on the Intranet 10.Especially be that the 3-17 of the area of the hole 11 on the Intranet 10 doubly is the best with the area of the hole on the outer net 20 21.

The shape of the hole 21 on the outer net 20 generally is the pass pattern that straight line or curve constitute, only show a kind of pattern that constitutes with straight line among Fig. 4, but be appreciated that, other shape, as all being operable by curve or by the pass pattern that curve and straight line constitute, and find out that by Fig. 4 outer net and Intranet can be overlapping, and can be not overlapping yet, as long as satisfy above-mentioned area requirements.

More than describing only is embodiment of the present utility model, can not limit protection domain of the present utility model according to this.All simple change and patterns of being done with spirit of the present utility model and description are modified, and all should belong to protection domain of the present utility model.

Claims

1, a kind of forming net that is used to make stage construction water conservancy diversion making hole film comprises Intranet, have hole in described on the net, it is characterized in that, also comprise outer net, described outer net is arranged at the skin of described Intranet, and described outer online hole area is greater than online hole area in described.

2. forming net as claimed in claim 1 is characterized in that, described interior online hole is pentagonal or hexagonal, and described outer net is the pass pattern that straight line or curve constitute.

3. forming net as claimed in claim 1 is characterized in that, the area of described outer online hole be hole online in described area 3-17 doubly.

4. as the described forming net of one of claim 1 to 3, it is characterized in that outer net and Intranet can be overlapping, can be not overlapping yet.

5. as the described forming net of one of claim 1 to 3, it is characterized in that described forming net comprises multilamellar Intranet or outer net.