摘要:
A machine for automatically producing a mattress border with handles sewn to the border material. Border material (16) is pre-fed and handle material (33) is fed from a selected spool mounted in a multiple handle material spool magazine mounted on rails, fed into a handle folding assembly, and cut to length (36). Ends of the handle material are folded under by the handle folding assembly and the handle then transferred in a folded condition from the handle folding assembly to a correct position on the border material. A double folded handle press holds each folded end of the handle material in place as each end is maneuvered under a sewing head needle to apply a stitch pattern to secure the folded ends to the border material. The double frame handle press (90) is translated separately from the carriage which travels in the sew pattern, to position the handle under the sewing needle.
摘要:
A machine for automatically producing a mattress border with handles (40) sewn to the border material (16). Border material is pre-fed from a selected spool (14), screened for splice avoidance and measured. Handle material (33) is fed from a selected spool mounted in a multiple handle material spool magazine mounted on rails, fed into a handle folding assembly, and cut to length. Ends of the handle material are folded under by the handle folding assembly (72) to a correct position on the border material. A double frame handle press holds each folded end of the handle material in place as each end is maneuvered under a sewing head needle to apply a stitch pattern to secure the folded ends to the border material. The double frame handle press is translated separately for positioning the end of the handle under the needle.
摘要:
Needle plate mounted on the base of a sewing machine and on which there are provided two needle holes of different shape which can be brought alternately into correspondence with the path of the vibrations of the needle, by causing said needle plate_ to rotate 180°. The characteristic of the invention consists in the provision of maneuvering and retaining means by which the needle plate can be raised from its normal working position by an amount sufficient so that it can be swung on the base without being disconnected from the latter and, if necessary, can be raised by a larger amount sufficient to permit the disconnecting thereof and its removal from the base.
摘要:
Ziernahtnähmaschine, insbesondere Zweinadel- Nähmaschine mit von ihrem Antrieb einzeln abkuppelbaren und in vorbestimmten Endstellungen arretierbaren Nadelstangen (3; :5; sowie mit einer Drückerfußvorrichtung (4) mit einem in zwei Endstellungen verbringbaren Drückerfuß, dadurch gekennzeichnet, daß Verstellmittel vorgesehen sind, die die Nadel und den Drückerfuß in eine zwischen den Endstellungen der Nadel bzw. des Drückerfußes gelegene Zwischenstellungen verbringen.
摘要:
Eine Knopfloch-Nähmaschine weist eine Knopfloch-Schneid-Vorrichtung auf, die ein Messer und eine Schneid-Block-Einheit mit mehreren Schneid-Blöcken (42, 43) aufweist, von denen jeweils einer in eine mit dem Messer zusammenwirkende Position bringbar ist. Die Schneid-Blöcke (42, 43) sind auf einem ortsfest mit der Nähmaschine verbundenen Amboss (18) angebracht. Das Messer ist von oben gegen den Amboss (18) bewegbar.
摘要:
Cet ensemble comporte un porte-outil (3) pour un outil (1), par exemple un poinçon, un foret ou une aiguille de machine à coudre, et une tête de fixation (4), montée à l'extrémité d'une broche (2), notamment une barre-aiguille. Le porte-outil est formé par une plaquette se plaçant sur un siège (4a) de la tête et maintenue amoviblement sur celui-ci par action de deux mâchoires (6a et 7a) dont est pourvue une extrémité de deux leviers (6 et 7) articulés sur le corps de la tête de fixation (4) et soumis, à leur autre extrémité, à un ressort tendant à maintenir les mâchoires en position de serrage. Le positionnement précis du porte-outil sur le siège (4a) est assuré par appui du bord supérieur du premier dans le fond d'une rainure, ménagée dans la partie supérieure de la paroi du siège, et maintien de cet appui grâce à la poussée exercée par des pattes (10a et 10b) d'une lame-ressort (10), solidaire de la tête (4), sur des tétons (3f et 3g) que représente le porte-outil (3).
摘要:
An elastic band feeding and tensioning mechanism and method for the application of an elastic band (13), having at least a portion thereof tensioned, on a fabric piece (69) fed under a stitching needle (14) of a sewing machine. A footplate guide is provided for positioning the elastic band (13) in alignment on a fabric piece (69). A sewing guide member (11) is adapted for securement to a foot arm (12) of a sewing machine, and has a jaw opening (18) for receiving the elastic band. A guide mechanism (15) is provided for guiding the elastic band (13) toward the jaw opening (18). The elastic band is advanced through the sewing machine by the feeddog (9) of the sewing machine and tension is applied to the band by tension members (20-25). The tension members comprise a drive and idler rolls (20,22) driven at a band feeding speed slower than the feeddog (9), and a further band stretching roll (25) which instantaneously stitches the band between the drive roll and feeddog. A control circuit activates the tension members whereby to feed a predetermined length of the elastic band in a predetermined stretched condition through the sewing guide member for sewing the stretched elastic band on the fabric piece. A cutting element also cuts the elastic band at a predetermined location.
摘要:
An elastic band feeding and tensioning mechanism and method for the application of an elastic band (13), having at least a portion thereof tensioned, on a fabric piece (69) fed under a stitching needle (14) of a sewing machine. A footplate guide is provided for positioning the elastic band (13) in alignment on a fabric piece (69). A sewing guide member (11) is adapted for securement to a foot arm (12) of a sewing machine, and has a jaw opening (18) for receiving the elastic band. A guide mechanism (15) is provided for guiding the elastic band (13) toward the jaw opening (18). The elastic band is advanced through the sewing machine by the feeddog (9) of the sewing machine and tension is applied to the band by tension members (20-25). The tension members comprise a drive and idler rolls (20,22) driven at a band feeding speed slower than the feeddog (9), and a further band stretching roll (25) which instantaneously stitches the band between the drive roll and feeddog. A control circuit activates the tension members whereby to feed a predetermined length of the elastic band in a predetermined stretched condition through the sewing guide member for sewing the stretched elastic band on the fabric piece. A cutting element also cuts the elastic band at a predetermined location.
摘要:
Looper section (5) provided under a needle plate (8) includes: a plurality of loopers (18) arranged in an array along a curved movement path; and a movement mechanism (13, 17, 19, 28) for moving the plurality of loopers (18) along the curved movement path to selectively position one of the plurality of loopers in a predetermined needle drop position. Chain-stitch sewing is performed by cooperation between the one looper (18) selectively positioned in the needle drop position and a hooked needle (4). The looper section (5) projects at its one end portion including the predetermined needle drop position, and a cylindrical sewing workpiece can be taken to and from the needle drop position via the one projecting end portion. The curved movement path is, for example, a U-shaped path.