SU400639A1 - TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE - Google Patents

TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE

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Publication number
SU400639A1
SU400639A1 SU1728765A SU1728765A SU400639A1 SU 400639 A1 SU400639 A1 SU 400639A1 SU 1728765 A SU1728765 A SU 1728765A SU 1728765 A SU1728765 A SU 1728765A SU 400639 A1 SU400639 A1 SU 400639A1
Authority
SU
USSR - Soviet Union
Prior art keywords
canning
tool
sewing machine
cutting threads
needle
Prior art date
Application number
SU1728765A
Other languages
Russian (ru)
Inventor
Л. Б. Рейбарх М. В. Трещев витель Н. А. ЗОЛЬНОЕ
Original Assignee
Подольский ордена Ленина , ордена Трудового Красного Знамени механический завод М. И. Калинина
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Подольский ордена Ленина , ордена Трудового Красного Знамени механический завод М. И. Калинина filed Critical Подольский ордена Ленина , ордена Трудового Красного Знамени механический завод М. И. Калинина
Priority to SU1728765A priority Critical patent/SU400639A1/en
Application granted granted Critical
Publication of SU400639A1 publication Critical patent/SU400639A1/en

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  • Sewing Machines And Sewing (AREA)

Description

Изобретение относитс  к области швейного машиностроени . Известно приспособление дл  обрезки нитей игл и петлител  на плоскошовной швейной машине, содержаш;ее нитеотт гиватель и подвижный и неподвижный ножи. Цель изобретени  - повышение надежности работы устройства и создание необходимого запаса ниток в иглах и петлителе. Это достигаетс  тем, что в предлагаемом устройстве подвижный нож выполнен в виде трезубца, средний зуб которого служит дл  раздваивани  нитей игл, один из межзубных паз0в дл  выт гивани  нитей игл, а другой дл  подвода нитей к неподвижному ножу. При этом нитеотт гиватель выполнен в виде шарнирно установленной Г-образной упругой пластины и штифта, периодически контактирующего с подвижным ножом. На чертеже схематически показано предлагаемое приспособление, общий вид. Приспособление содержит подвижный нож У, вынолненный в виде трезубца, имеющего средний зуб 2, межзубные пазы 3 и 4, узкий паз 5, отверстие 6 с острой кромкой дл  обрезки нитей и упор 7. Подвижный нож кинематически св зан с электромагнитным приводом (на чертеже не показан). Справа от игольных отверстий 8 между игольной пластиной 9 и планкой 10 винтами 11 жестко закреплен непОлЧвижный нож 12. На платформе машины закреплен кронштейн 13, несущий шарнирную ось 14 с запрессовапным в нее штифтом 15. На оси 14 закреплен нитеотт гиватель 16, выполненный в виде Г-образной упругой пластины, предназначенный дл  отт гивани  нити 17 петлител  и возвращающийс  в исходное положение пружиной 18. Подвижный нож / получает возвратно-поступательное движение от электромагнитного привода и, не доход  до неподвижного ножа 12, своим упором 7 нажимает на штифт 15. При этом нитеотт гиватель 16 подходит к петлителю 19, захватывает нить 17 петлител  и отт гивает ее, создава  необходимый запас нити. Средний зуб 2 подвижного ножа /, проход  над петлителем 19, раздваивает ннти игл 20, охватывающие петлптель 19, на две ветви 21 и 22, которые, выт гива сь, создают необходимый запас нитей. При дальпейше, движении подвижного ножа выт нутые западают в узкий паз 5, затем в отверстие 6 и подвод тс  к неподвижному ножу 12, который, взаимодейству  с острой кромкой отверсти  6, обрезает их. После обрезки нитей игл и петлител  подThe invention relates to the field of sewing engineering. A device for trimming the threads of needles and loopers on a flat-seam sewing machine is known, containing its needle thread and movable and fixed knives. The purpose of the invention is to increase the reliability of the device and create the necessary supply of threads in the needles and looper. This is achieved by the fact that in the proposed device the movable knife is made in the form of a trident, the middle tooth of which serves to split the threads of the needles, one of the interdental grooves for pulling the threads of the needles, and the other for supplying the threads to the fixed knife. At the same time, the threadguide is made in the form of a hinged-mounted L-shaped elastic plate and pin, periodically in contact with a movable knife. The drawing schematically shows the proposed device, a general view. The device contains a movable knife U, made in the form of a trident, having a middle tooth 2, interdental grooves 3 and 4, a narrow groove 5, a hole 6 with a sharp edge for cutting the threads and an emphasis 7. The movable knife is kinematically connected with an electromagnetic drive (in the drawing shown). To the right of the needle holes 8 between the needle plate 9 and the strap 10, the screws 11 are rigidly fixed to the non-movable knife 12. On the platform of the machine there is attached a bracket 13 carrying the hinge axis 14 with a pin 15 pressed into it on the axis 14, made in the shape of Г -shaped elastic plate designed to pull off the looper thread 17 and return to the initial position by the spring 18. The movable knife / receives a reciprocating motion from the electromagnetic drive and, not income, to the fixed knife 12, with its emphasis 7 presses the pin 15. In this case the thread injector 16 approaches the looper 19, seizes the thread 17 of the looper and pulls it away, creating the necessary supply of thread. The middle tooth 2 of the movable knife /, the passage above the looper 19, splits the needles 20, covering the looppipe 19, into two branches 21 and 22, which, being drawn, create the necessary supply of threads. Further, the movement of the movable knife, the elongated ones sink into the narrow groove 5, then into the opening 6 and are applied to the fixed knife 12, which, interacting with the sharp edge of the opening 6, cuts them off. After trimming the threads of the needles and looper under

SU1728765A 1971-12-24 1971-12-24 TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE SU400639A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1728765A SU400639A1 (en) 1971-12-24 1971-12-24 TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1728765A SU400639A1 (en) 1971-12-24 1971-12-24 TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE

Publications (1)

Publication Number Publication Date
SU400639A1 true SU400639A1 (en) 1973-10-01

Family

ID=20497320

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1728765A SU400639A1 (en) 1971-12-24 1971-12-24 TOOL FOR CUTTING THREADS NEEDLE AND CANNING ON A PLAIN SEWING MACHINE

Country Status (1)

Country Link
SU (1) SU400639A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005504A (en) * 1987-05-09 1991-04-09 G. M. Pfaff Aktiengesellschaft Thread cutting device having a translatably slidable knife and catcher, being driven for forming uniformly short stitch thread ends in a zig zag sewing machine
US5125351A (en) * 1990-11-23 1992-06-30 Kansai Special U.S.A. Corp. Thread trimmer system for in-line chain stitch cylinder bed sewing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005504A (en) * 1987-05-09 1991-04-09 G. M. Pfaff Aktiengesellschaft Thread cutting device having a translatably slidable knife and catcher, being driven for forming uniformly short stitch thread ends in a zig zag sewing machine
US5125351A (en) * 1990-11-23 1992-06-30 Kansai Special U.S.A. Corp. Thread trimmer system for in-line chain stitch cylinder bed sewing machine

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