Needle loom in which the frequency of at least one of its vibration modes can be adjusted

A technology of inherent vibration, acupuncture machine, applied in the equal direction of acupuncture machine, textile and paper, edible oil/fat, can solve the problems of unsatisfactory, increased manufacturing cost, not acupuncture machine, etc.

Inactive Publication Date: 2007-11-28
ASSELIN THIBEAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] [15] But both technical approaches are unsatisfactory
The first technical approach (prohibited range of needling speeds) leads to restricted possibilities for the production of needling machines
The second technical method (strengthening the structure) on the one hand leads to increased manufacturing costs; on the other hand, it is not always technically sufficient to strengthen the structure of the needle loom

Method used

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  • Needle loom in which the frequency of at least one of its vibration modes can be adjusted
  • Needle loom in which the frequency of at least one of its vibration modes can be adjusted
  • Needle loom in which the frequency of at least one of its vibration modes can be adjusted

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] [42] Figure 1 shows a single-click needling machine 1 for needling any type of nonwoven fibrous product, for example for needling nonwovens which are conveyed upstream of the needling machine by an open-width-forming machine.

[0043] [43] The needling machine 1 is equipped with a special adjustment device 2 according to the invention.

[0044] [44] Acupuncture machine 1

[0045] [45] The structure and operation of the needling machine 1 are known and therefore only briefly described below.

[0046] [46] The acupuncture machine 1 comprises a mechanically welded type steel support frame 10 with:

[0047] [47] - a needle set 11 comprising a plurality of vertical needles 12;

[0048] [48] ​​- Motorized (for example a motor connected to a crank-link assembly) drive means 13 capable of moving the needle set 11 according to a vertical alternating motion;

[0049] [49]-Two separate horizontally perforated steel plates 14 and 15, the holes of which are vertically aligned wit...

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Abstract

The invention provides a needle loom in which the frequency of its natural vibration modes can be manually or automatically adjusted based on needle velocity. The said adjustment is obtained desirably by changing the quality or rigidity of the needle loom, or by changing the rotation inertia of the axis series of the needle loom.

Description

technical field [0001] [01] The present invention relates to reducing the vibration amplitude of a needling machine used to mechanically consolidate a fibrous product, particularly a nonwoven product, papermaking felt, and the like. Background technique [0002] [02] On the textile side of the production of nonwovens, needlelooms are generally used to consolidate fibrous nonwoven strips (single or multilayer) or nonwovens, for example from an étaleur-nappeur. cloth. In papermaking, needlelooms are also used to reinforce papermaking felts. [0003] [03] In a needling machine, the fibrous product usually passes between a needling support and a débourreur, which are usually formed by two perforations, usually made of steel. board composition. In some cases, the lancing support and needle scribe may also consist of a structure with lamellae, or the lancing support may include brushes. During needling, a number of needles mounted in parallel on a support, usually called a nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H18/00D04H18/02
CPCD04H18/02A23D7/0053
Inventor 让－弗朗索瓦・诺埃尔弗朗索瓦・路易
Owner ASSELIN THIBEAU
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