Punching and knurling forming device

A technology of pore pressing and forming molds, which is applied in medical science, clothing, underwear, etc., and can solve problems such as displacement, difficulty in maintaining the 3D effect of three-dimensional non-woven fabrics, and small bonding area

Pending Publication Date: 2016-10-26
XIAMEN YANJAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. CN103908376A, published on July 9, 2014, the name of the invention is a three-dimensional non-woven fabric with an open-pore structure, the application discloses a three-dimensional non-woven fabric with an open-pore structure, mainly It uses a pair of heated concave-convex rollers to emboss and punch non-woven fabrics in one step to form a concave-convex structure. The fiber density in the raised area increases, destroying the fluffy and soft performance of the non-woven fabric, ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Punching and knurling forming device
  • Punching and knurling forming device
  • Punching and knurling forming device

Examples

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Effect test

Embodiment 1

[0027] Such as image 3 , as shown in 4, the perforated embossing molding die of the present invention includes a needle roll 1 and a concave roll 2 that are engaged with each other, wherein the surface of the needle roll 1 has a perforating needle composed of a platform a and a cone b, and the platform The upper bottom surface of the body a is connected with a cone b, and the lower bottom surface of the table body a is connected with the core of the needle roller 1 . Such as image 3 The dotted line in the middle represents a single tine, where the area of ​​the upper bottom of a single platform a on the tine is 10mm 2 , the height is 0.5mm, the shape of the bottom surface is irregular, and the bottom surface area of ​​a single cone b on the punching needle is 3mm 2 , the height is 2.5mm, the bottom surface area of ​​the cone b is smaller than the upper bottom surface area of ​​a single table body 3a; the surface of the concave roller 2 has a concave hole c corresponding to...

Embodiment 2

[0030] Such as Figure 5 , as shown in 6, the perforated embossing molding die of the present invention comprises a needle roller 1 and a concave roller 2 that are engaged with each other, wherein the surface of the needle roller 1 has a perforating needle composed of a platform a and a cone b, and the platform The upper bottom surface of the body a is connected with the four cones b, and the lower bottom surface of the table body is connected with the needle roller core. Such as Figure 5The dotted line in the middle indicates a single tine, where the area of ​​the upper bottom of a single platform b on the tine is 60mm 2 , the height is 1.0mm, the bottom surface is a regular polygon, and the bottom surface area of ​​a single cone b on the punching needle is 4mm 2 , the height is 1.5mm, the bottom surface area of ​​the four cones b is smaller than the upper bottom surface area of ​​a single platform a; the surface of the concave roller 2 has a concave hole c corresponding t...

Embodiment 3

[0033] Such as Figure 7 , shown in 8, the perforated embossing molding die of the present invention comprises a needle roll 1 and a concave roll 2 that are engaged with each other, wherein the surface of the needle roll 1 has a perforating pin composed of a table body a and a cone b, and the table The upper bottom surface of body a is connected with eighteen cones 7b, and the lower bottom surface of platform a is connected with needle roller 1 roller core. Such as Figure 7 The dotted line in the middle indicates a single tine, where the area of ​​the upper bottom of a single platform a on the tine is 210mm 2 , the height is 1.0mm, the shape of the bottom surface is an irregular polygon, and the bottom surface area of ​​a single cone b on the punching needle is 2mm 2 , the height is 2.0mm, the bottom surface area of ​​the eighteen cones b is smaller than the upper bottom surface area of ​​a single table body a; the surface of the concave roller 2 has a concave hole c corres...

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Abstract

The invention discloses a punching and knurling forming device which is composed of a pin roller and a concave roller meshed with each other. The punching and knurling forming device is characterized in that punching pins composed of platforms and pyramids are arranged on the surface of the pin roller, the upper bottom surface of each platform is connected with at least one pyramid, the lower bottom surfaces of the platforms are connected with a core of the pin roller, the sum of the areas of the bottom surfaces of all the pyramids on one platform is smaller than the area of the upper bottom surface of each platform, and concave holes corresponding to the pyramids on the pin roller are formed in the surface of the concave roller. With the adoption of the punching and knurling forming device, bulges and pores can be formed on a non-woven fabric or a perforated film, and the bottoms of the bulges are continuous planes, therefore, an effective support effect can be achieved on the bulges, meanwhile, the contact area with a lower-layer flow guide layer or an absorber can be increased when an absorption product is processed, thus the bonding strength can be increased, and finally, the surface layer fall-off or displacement is seldom caused in use of the device.

Description

technical field [0001] The invention relates to a perforating and embossing forming die, in particular to a perforating and embossing forming die for non-woven fabrics and perforated films. Background technique [0002] Non-woven fabrics and perforated films have been widely used in the surface layer of sanitary napkins, sanitary pads and baby diapers. In order to improve the comfort of the surface layer in contact with the skin, effectively reduce the contact area with the wearer's skin and increase the penetration rate of body fluids , to reduce the sense of moisture stickiness, therefore, it is necessary to open holes on the surface layer to form infiltration channels and to form a concave-convex structure on the surface of the non-woven fabric and perforated film to reduce the contact area, thus appearing a perforated non-woven fabric with a concave-convex structure and perforated film. The surface layer is embossed and pore-opened on the surface in contact with the wea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): A61F13/15
CPCA61F13/15577A61F2013/15821
Inventor 蔡吉祥谢继华罗杰龙
Owner XIAMEN YANJAN NEW MATERIAL CO LTD
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