Sewing machine for making seams in a programmed, measured and controlled way

A sewing machine and sewing machine head technology, applied in the field of sewing machines, can solve problems such as imprecise seams

Inactive Publication Date: 2020-05-22
DERIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, seams made by this sewing machine may not be precise

Method used

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  • Sewing machine for making seams in a programmed, measured and controlled way
  • Sewing machine for making seams in a programmed, measured and controlled way
  • Sewing machine for making seams in a programmed, measured and controlled way

Examples

Experimental program
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Embodiment approach

[0119] For this, refer to Figure 28 , Figure 29 and Figure 30 , according to a preferred embodiment of the present invention, the sewing machine 100 may have a detector R which is operatively connected to said control unit and which detects the two fabrics 11, 12, 13, 14 sewn by the needles A the length of a part. Specifically, the detector R detects the length between two adjacent stitches. According to one embodiment of the present invention, the detector R comprises:

[0120] - incremental encoder reader RE;

[0121] - a disk RD placed near the needle A, adapted to come into contact with the fabric 11, 12, 13, 14 in such a way that it rotates if the fabric moves along the working surface PL;

[0122] - the axis of rotation RA, which transmits the rotational movement of the disc RD to the incremental encoder reader RE;

[0123] - a device RV for activating / deactivating the detector R; in particular, the device RV places the detector R in a first position (wherein th...

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Abstract

The invention relates to a sewing machine (100) for making seams on fabrics (11, 12, 13, 14) in a programmed, measured and controlled way; the sewing machine (100) of the invention provides for easilyand accurately sewing fabrics (11, 12, 13, 14) with edges with a different radius of curvature, making very accurate seams, wherein the stitch pitch coincides with a preset pitch; the sewing machine(100) comprises: a needle (A), a claw, a blocking unit (4, 41) that firmly blocks the fabrics (11, 12, 13, 14) in the vicinity of the place where the needle (A) makes the seam, a dragging assembly (2)suitable for dragging the fabrics (11, 12, 13, 14) along a work surface (PL), a clamp (3) that is integral with the dragging assembly (2), and a detector (R) to detect the length between two adjacentstitches, in such a way to measure and check the accuracy of the seam made by the needle (A).

Description

technical field [0001] This patent application for industrial invention relates to a sewing machine for forming seams between two or more fabrics in a planned, measured and controlled manner. [0002] In this patent, the expression "programmed seam" means a seam with a partially programmed trajectory before the seam is actually formed by the sewing machine. The planning of a seam refers to the individual stitch distances between successive stitches, and also refers to the trajectory of the seam. [0003] The present invention relates to the field of sewing machines, which are mechanical or electromechanical devices for turning one or more needles from top to bottom by passing one or more threads made of cotton thread or other material through said needle or needles Alternate vibrations to join fabric, leather or cloth together by seaming. [0004] The inventive concept of the present invention is the result that must be experienced in a variety of applications where at least...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B35/02D05B29/06D05B27/10
CPCD05B27/10D05B29/06D05B35/02D05B27/04D05B45/00
Inventor B·曼奇尼
Owner DERIM
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