Unlock instant, AI-driven research and patent intelligence for your innovation.

Needling device

A needle bed and needle holder technology, applied in the field of manufacturing such needle devices, can solve the problems of blade installation and replacement costs, and achieve the effects of simplified installation, simple fixation and simple structure

Active Publication Date: 2013-12-25
瑞士布克哈德公司
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the needle arrangement is that it is complex to install and replace the individual blades in the roller grooves

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Needling device
  • Needling device
  • Needling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The following applies to the following description: If a reference number is indicated in a drawing for the sake of clarity of the drawing, but is not mentioned in the directly relevant part of the description, reference is made to it in the preceding or following part of the description elaboration. Conversely, in order to avoid overcomplicating the figures, reference signs that are not relevant for direct understanding are not drawn in all figures. For this, reference is made in each case to the remaining figures.

[0036] In the exemplary embodiment described below, the needle device according to the invention is equipped with a needle bed configured as a needle roller. However, instead of needle rollers, the needle device according to the invention can also be provided with a needle bed designed as a flat or curved plate. All of the embodiments described below in this context with respect to needle rollers can be applied to needle beds in the form of plates.

[0...

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
Login to View More

PUM

No PUM Login to View More

Abstract

A needling device for processing an, in particular, ribbon-shaped sheet material comprises a needle roller (W), on which a multiplicity of needle elements (10) which are provided with points (11) are arranged in such a way that the needle elements (10) protrude out of the needle roller (W) and their points (11) point away from the needle roller (W). The needle elements (10) are configured as flat blades with in each case at least one cutting edge which extends away from the point (11) of the needle elements in the direction of the needle roller (W). The needle elements (10) are fastened via mounting members in the manner of small legs in bar-like needle carriers (20) which for their part are inserted in grooves of the needle roller (W).

Description

technical field [0001] The invention relates to a needle device according to the preamble of independent claim 1 . The invention also relates to the use of such a needle device and a method for producing such a needle device. Background technique [0002] In the process known as "fibrillation" of flat structures, e.g. stretched strips of plastic film made of polypropylene are split into longitudinal directions by parallelizing the molecular chains or polymer filaments strip. Hitherto, needle rolls with radially protruding needles with an essentially circular cross-section have been used for fibrillation. The plastic strip is stretched and guided over rotating needle rollers, wherein the needles penetrate slightly into the strip and cause splitting. However, in the case of more elastic plastic materials such as containing more polyethylene and fewer parallel chains, such needle rollers with round needles do not work well or fail completely because the needles tend to Shre...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D04H13/02B26D1/00B26F1/14B26F1/20D01D5/42B21D53/64
CPCB26D1/0006B26F1/14B26F1/20D01D5/426D04H13/02D04H18/00D04H18/02B21D53/64B21D53/642B21D53/645B21D53/647B26D1/00D01D5/42
Inventor 西奥多·布尔克哈特海纳·豪斯多夫托马斯·耶尔曼弗朗西斯·维森
Owner 瑞士布克哈德公司