JPH0243980U - - Google Patents

Description

[Brief explanation of drawings]

1 and 2 are perspective views showing a fabric edge curl correction device for a sewing machine according to an embodiment of the invention;
3A, B and 4A, B, C are respectively side views explaining the operating form of the drive mechanism, FIG. 5 is a perspective view of the main parts explaining the operation of the correction auxiliary piece, and FIG.
Figures A, B, Figure 7 A, B, C and Figure 8 A, B
, C is a side view of the main part explaining the operation corresponding to the combination of the curl directions of the upper and lower fabric edges, respectively.
10 and 10 are timing charts explaining the operation of the drive mechanism in different operation modes, respectively,
FIG. 11 is a schematic block diagram of the drive control device. 10...first cylinder, 12...second cylinder, 2
3... Third cylinder, 30... Curl correction auxiliary piece, 3
DESCRIPTION OF SYMBOLS 1... Second curl correction piece, 31a, 31b... Correction edge, 32... Sewn article support plate, 38... Lower fabric, 39
...Top fabric, 38a, 39a...Curled end, 44
...first curl correction section, 45...sewn article, 46...sewn section, 47...knee switch, 48...controller.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A sewn product support plate that guides the transfer of the sewn product by slidingly contacting the lower fabric of the sewn product in which upper and lower fabrics are overlapped, and In a sewing machine equipped with a sewing section attached to the support plate so as to sew the edge portions of the upper and lower fabrics, the curled edge of the lower fabric is sewn at a position on the upper side of the sewn material near the sewing section. A first curl correction part fixed in an inclined position with respect to the direction of transport of the sewn material so as to sequentially extrude and straighten the curled ends of the lower fabric as the sewn product is transferred; A second curl corrector disposed in an inclined position with respect to the direction of transport of the sewn article so as to contact the curled end of at least one of the fabrics and sequentially push out and straighten the curled end as the sewn article is transferred. 1. A fabric edge curl correction device for a sewing machine, comprising: a second curl correction section; and a drive mechanism for switching and moving the second curl correction section between a correction action position and a non-action position. (2) The second curl correction part can be inserted between the upper and lower fabrics of the sewn product, and in the inserted state, the correction edge presses and corrects the inwardly curled ends of the upper fabric and the inward curls of the lower fabric. 2. The fabric edge curl correction device for a sewing machine according to claim 1, further comprising a curl correction auxiliary piece having a correction edge portion for extruding and straightening the fabric edge portion, and capable of pressing the upper fabric from the upper surface thereof. (3) based on a switch operation while the second curl correction section is moved to the curl correction non-action position, the second curl correction section is moved to the correction action position according to a preset sequence; and a drive control device that returns and moves the second curl correction section to a non-curl correction position according to a preset sequence based on a switch operation while the second curl correction section is moved to a correction operation position. A fabric edge curl straightening device for a sewing machine according to claim 1 or 2.