10results about "Thread-laying mechanisms" patented technology

The utility model belongs to sewing machine technical field, especially point to a kind of for the stabilizing structure of the thread shifting lever of multi-needle sewing machine, it includes slider slide rail group, connecting seat and adjusting lever, the slider slide rail group includes slider and slide rail, the slide rail is fixed on sewing machine body, the slider is slidably arranged on slide rail, the sewing machine body is provided with thread shifting lever, the thread shifting lever moves left and right with sewing machine work, the connecting seat is arranged on slider, one end of the adjusting lever is connected with thread shifting lever, its other end is adjustably connected with connecting seat, the adjusting lever, connecting seat and slider move with thread shifting lever moves, the utility model aims at providing a kind of stabilizing structure for the thread shifting lever of multi-needle sewing machine, which is reasonable in structure and simple, can move with thread shifting lever, and play the stabilizing effect.

In sewing methods using a sewing machine, this makes it easier to maintain the correct tension of the upper thread. [Solution] In a sewing method using a sewing machine 10 equipped with an upper thread tension device 11, a thread guide 12 for changing the direction of the upper thread T that has passed through the upper thread tension device 11, and a balance beam 13 that can pull up the upper thread T while it is passing through the thread guide 12, the sewing machine 10 further equipped with an upper thread guide member 100 having a first guide section 120 for changing the direction of the upper thread T that has passed through the thread guide 12 and directing it back towards the thread guide 12, the upper thread T that has passed through the thread guide 12 is passed through the first guide section 120 to change its direction, passed back through the thread guide 12 before passing it through the balance beam 13, and then sewing is performed while it is passed through the balance beam 13.

The utility model discloses a sewing device which is used for sewing a first cutting piece needing to be flanged to a second cutting piece. The device comprises a workbench, a sewing template and a sewing machine, and the workbench can generate airflow; the sewing template is arranged on the workbench and can make the first cutting piece upwarp so that the first cutting piece can be grabbed and folded to form a turnover part. The sewing template is further provided with a turning plate, and the turning plate is suitable for pressing the folding part. The sewing template is further provided with a cover plate, the cover plate is rotationally connected with the bottom plate and used for pressing a second cutting piece located between the turning plate and the cover plate, the cover plate is provided with a sewing groove, and the sewing groove right faces the portion, not covered by the turning plate, of the through hole. The sewing machine sews the first cutting piece needing to be flanged to the second cutting piece along the sewing groove, the sewing device can help an operator to accurately and rapidly perform flanging, and the production efficiency and the processing quality are greatly improved.

[Problem] To facilitate the ability to maintain proper thread tension of an upper thread in a sewing method that uses a sewing machine. [Solution] Provided is a sewing method that uses a sewing machine 10 comprising an upper-thread tensioning device 11, a thread hook 12 for changing the direction of an upper thread T passed through the upper-thread tensioning device 11, and a thread take-up lever 13 that can carry out an operation of pulling up the upper thread T in a state in which the upper thread T has passed through the thread hook 12. For the sewing machine 10, a sewing machine is used that further comprises an upper-thread guide member 100 having a first guide part 120 for reversing the direction of the upper thread T passed through the thread hook 12 and directing the upper thread T once again to the thread hook 12. The upper thread T that has passed through the thread hook 12 is hooked to the first guide part 120 and subjected to a reversal of direction, then hooked once again to the thread hook 12 before being passed through the thread take-up lever 13, and then sewing is carried out with the upper thread T in a state of being passed through the thread take-up lever 13.

The utility model relates to the technical field of zippers, in particular to a zipper belt with a non-continuous sewing expansion cloth belt and sewing equipment for manufacturing the zipper belt, during working, a basic cloth belt to be sewn and the expansion cloth belt synchronously and continuously pass through a sewing mechanism under the action of a belt dragging mechanism, and the sewing mechanism sews and fixes the passing expansion cloth belt on the side portion of the basic cloth belt. The method comprises the following steps: sewing a base cloth belt with a preset length, stopping for a preset time after sewing the base cloth belt with the preset length, then starting sewing the base cloth belt with the preset length, and repeating the steps, so that the produced expansion cloth belt is along the length direction of the base cloth belt: sewing lines between the expansion cloth belt and the base cloth belt are arranged in a sectional manner, and local sections of the expansion cloth belt are separated from the base cloth belt in a non-sewing manner. In this way, when goods are supplied to an application manufacturer, the application manufacturer only needs to cut off the expansion cloth belt which is not sewed and fixed at the non-sewed position of the expansion cloth belt, the procedure of unsewed threads is omitted, time and labor are saved, and the working efficiency is improved.

The utility model relates to a sewing machine thread shifting device which comprises a connecting plate, open grooves are formed in the positions, close to the left side and the right side, of the top of the connecting plate, magnets are fixedly connected in the open grooves, ropes are fixedly connected to the centers of the front side and the rear side of the connecting plate, and the positions, close to the top, of the edges of the outer sides of the ropes are sleeved with movable pipes. Through mutual cooperation of the connecting plate, the magnet, the movable pipe, the T-shaped plate and other structures, the connecting plate can be placed on the sewing machine, the magnet is attracted to the surface of the sewing machine, the connecting plate is preliminarily limited, then the two ropes are wound around the surface of the sewing machine, and the two ropes are wound around the surface of the sewing machine. And the T-shaped plate on the movable pipe on one side is placed in the T-shaped groove in the movable pipe on the other side, so that the connecting plate is further limited.

The transmission box comprises a box body, a driving shaft rotatably connected to one side of the box body, a thread tensioning mechanism, a thread shifting mechanism and a needle bending mechanism, wherein the thread tensioning mechanism comprises a thread guide, a thread tensioning rod and a first transmission assembly, the thread guide is provided with a thread guide hole, the thread tensioning rod is located beside the thread guide, the driving shaft can drive the thread tensioning rod to reciprocate up and down through the first transmission assembly when the driving shaft rotates, and the thread tensioning rod is provided with a thread tensioning hole; the thread shifting mechanism comprises a thread shifting hook and a second transmission assembly, the driving shaft can drive the thread shifting hook to reciprocate along the horizontal direction through the second transmission assembly when the driving shaft rotates; the needle bending mechanism comprises a needle and a third transmission assembly, the needle is provided with a thread passing channel extending along the length direction of the needle, and the driving shaft can drive the needle to move close to or away from the thread shifting hook through the third transmission assembly when the driving shaft rotates.

The invention provides a thin-wall conical section preform sewing device, which belongs to the technical field of bilateral sewing devices, and comprises a thread leading mechanism, a thread hooking mechanism, an inclination mechanism and a translation mechanism, the wire leading mechanism drives a wire leading crank to complete the whole-circle movement through a group of synchronous belt wheels, and a wire leading needle carried on the wire leading mechanism reciprocates to realize the mechanism wire leading action; the thread hooking mechanism drives the cam to complete the whole-circle movement and is accurately matched with the thread leading needle carrying the thread to complete the sewing action; the tilting mechanism is driven by a hand-cranking wheel to drive a carrying block on a trapezoidal lead screw to move to complete inclination angle change, a thread leading needle is promoted to vertically penetrate into a sewing material all the time, a rotating shaft is borne on the tilting mechanism, and the rotating shaft is driven to control the needle pitch. The translation mechanism moves through a guide rail sliding block, the translation freedom degree is added for the inclination mechanism, and the translation action is completed in the sewing process. The circular sewing device is compact in structure, circular sewing of the thin-wall conical section prefabricated body can be achieved, and sewing efficiency and product quality consistency are improved.

The utility model provides a thread shifting mechanism of a sewing machine, and belongs to the technical field of sewing machines. The problem that an existing wire shifting mechanism is insufficient in working reliability is solved. According to the thread shifting mechanism of the sewing machine, the sewing machine comprises a base and a rotating shuttle arranged in the base, the thread shifting mechanism comprises a thread shifting rod and a strip-plate-shaped thread shifting base located on the side portion of the rotating shuttle, the thread shifting rod is arranged on the thread shifting base, and the end portion of the thread shifting rod can stretch into the upper portion of the rotating shuttle to do circumferential circulating motion. The end, away from the rotating shuttle, of the thread shifting base is rotationally arranged on the base, a driving piece is further arranged on the base, and the driving piece can drive the other end of the thread shifting base to horizontally swing forwards so that the end of the thread shifting rod can be away from the rotating shuttle. The thread shifting rod can be effectively prevented from colliding with the thread trimming movable cutter, so that the reliability of sewing work is remarkably improved.

The utility model discloses a three-dimensional flyknit vamp edge covering device, which belongs to the field of flyknit process, and comprises a working frame, the upper top end of the working frame is provided with a wire outlet assembly, the wire outlet assembly comprises a vertical plate fixedly connected to the upper top end of the working frame, the inner wall of the vertical plate is fixedly connected with a wire placing box, and the inner wall of the wire placing box is rotatably connected with a fixed roller. The side wall of the thread containing box is rotationally connected with a reciprocating lead screw, the outer wall of the reciprocating lead screw is sleeved with a thread outlet seat in a threaded mode, through cooperative use of all the devices, the thread outlet efficiency and stability of the edge covering device are improved, the phenomenon that weaving threads are wound and knotted in the flyknit process, and then the flyknit edge covering efficiency is affected is avoided, and through operation of the flyknit device, the flyknit edge covering efficiency is improved. According to the flyknit edge covering machine, the weaving thread is driven to penetrate through the inner wall of the thread outlet base, the weaving thread can smoothly pass through the three-jaw chuck, then the reciprocating lead screw is matched to enable the thread outlet base to drive the weaving thread on the outer wall of the bobbin to be evenly and stably discharged, and then the flyknit edge covering stability and efficiency are improved.