14results about "Loop takers" patented technology

The utility model discloses a sealed full lubrication swing shuttle transmission structure, it includes: the lower shaft driven gear of installation in the lower main shaft, the lower shaft bevel gear of setting in the lower shaft driven gear side and mutually meshed, the lower swing axle of parallel setting in the lower main shaft side and be used for supporting the lower shaft bevel gear, the eccentric device of setting in the lower shaft bevel gear side and through transmission belt pulley subassembly with main shaft module connection and the connecting rod of connecting eccentric device and the lower shaft bevel gear, wherein, the lower shaft driven gear, the lower shaft bevel gear, eccentric device and connecting rod all are located in the oil tank of frame lower. Adopt eccentric device through connecting rod and promote the lower shaft bevel gear swing, then through the lower shaft driven gear and drive the lower main shaft reciprocating rotation, thereby reduce the motion stroke, thereby can set up the lower shaft driven gear, the lower shaft bevel gear, eccentric device and connecting rod in the oil tank of frame lower, make transmission structure can be soaked in lubricating oil and realize full lubrication, greatly reduce transmission wear, promote transmission structure service life, can reduce the noise.

The utility model provides a can eliminate the shuttle core pipe of inertia relates to the textile tool technical field, include: the shuttle core pipe main part, the outer surface left edge of shuttle core pipe main part is established with the outer ring groove, the outer ring groove is closely sleeved and has the magnetism pipe sleeve, the magnetism pipe sleeve is made of the plastic injection of mixed ferrite magnetic powder, the outer ring groove groove surface in the convex has two place strip structure's ring groove directional relief, two place ring groove directional relief take the axis of the shuttle core pipe main part as the axle, the axle symmetry distribution is in the outer ring groove groove surface, compared with the way of embedding ferrite magnet in the prior art, the amount of ferrite magnet is reduced, the effect of saving cost is played, the assembly mode is more fast, and the assembly is more firm, solve the problem that the existing way of embedding ferrite magnet carries out the brake to the shuttle core pipe, the production cost is higher, the embedding process of ferrite magnet is complicated, because the size of shuttle core pipe and ferrite magnet is small, will further increase the assembly and manufacturing difficulty of shuttle core pipe.

The utility model provides a kind of bending needle device, including bending needle shaft and bending needle seat, and bending needle seat is used to install bending needle;The bending needle seat is axially fixed, and can be circumferentially rotatably installed on bending needle shaft;The bending needle device further includes clutch assembly and linear drive assembly;The clutch assembly includes plug shaft, and the plug shaft is movably arranged on the bending needle seat;The linear drive assembly is used to drive the plug shaft to reciprocate along its axial direction, so that the bending needle seat is circumferentially fixed or fixed to be released with the bending needle seat;When the bending needle seat is fixed to be released with the bending needle shaft, the bending needle seat can rotate around the axis of bending needle shaft;The utility model only needs to drive plug shaft reciprocating through linear drive assembly, so that the fixation and release of bending needle seat at sewing position can be realized, effectively avoid the problem that bolt is easy to lose and loosen when traditional bolt is fixed, and ensure the reliability of bending needle seat restoration fixation.

This application relates to a presser foot-linked hook lifting device for a sewing machine, comprising a presser foot mechanism, a hook mechanism, and a bracket. The presser foot mechanism includes a presser bar; the hook mechanism includes a rotating shaft component, a rotating arm, and a hook. The rotating shaft component is arranged parallel to the presser bar, and the two ends of the rotating arm are respectively connected to the rotating shaft component and the hook. The end of the hook away from the rotating arm can reciprocate around the presser bar; the bracket is connected to the presser bar and is arranged corresponding to the rotating arm; wherein when the presser bar is lifted upward, the bracket pushes the rotating arm and the hook to move upward together. Therefore, it can not only process fabrics of various thicknesses but also meet the requirements for sewing extra-thick fabrics.

The present invention relates to the technical field of sewing machines, and provides an outer hook frame and a rotary hook. The outer hook frame comprises an outer hook main body, which is an integrally formed structure. A mounting cavity is provided in a middle portion of the outer hook main body. A guide groove and a mounting surface disposed on a top end surface of the guide groove are recessed from a side wall of the mounting cavity. At least one arc-shaped limiting member is detachably provided on the mounting surface, and the arc-shaped limiting member is used for limiting a guide rail of an inner hook frame within the guide groove. A dust discharge hole in communication with the guide groove is formed on a side wall of the outer hook main body. A thread pushing protrusion, a needle insertion slot located below the thread pushing protrusion, and a needle protection surface connected to the needle insertion slot are provided at a top edge of the outer hook main body. The needle insertion slot is used for insertion of a needle. In the present invention, the outer hook main body is an integrally formed structure and has good structural stability. The thread pushing protrusion is provided to push an upper thread outwards, thereby facilitating shedding of the upper thread. The needle protection surface is provided to limit and protect the needle. The dust discharge hole is provided to discharge dust in the guide groove and facilitate heat dissipation, thereby reducing the probability of the inner hook frame jamming within the outer hook main body.

The utility model belongs to the technical field of sewing machine relates to a dry type shuttle mechanism of sewing machine, including shuttle bed, shuttle frame and shuttle skin, the inside of shuttle bed is provided with guide rail groove, the shuttle frame sets up in the shuttle bed and its guide rail assembly is in guide rail groove, the shuttle skin is fixed in the outside of shuttle bed along the circumference pasting formula, the pasting surface of shuttle bed and shuttle skin is provided with oil storage groove, the fixed seal structure of oil storage groove of shuttle skin and shuttle bed, the inside of oil storage groove is filled with solid grease, the bottom of oil storage groove is provided with through -hole of intercommunication guide rail groove. The dry type shuttle mechanism of sewing machine provided by the utility model has the advantages that the structure is simple, oil supply is controllable, and the problem of oil stains can be avoided.

This utility model discloses a leaf spring for a rotary hook and the same for the rotary hook. The leaf spring includes a base, multiple arc-shaped arms, and multiple positioning parts. All arc-shaped arms are formed by cutting the front part of the base, distributed around the central shaft hole of the base, extending circumferentially, with the free ends aligned clockwise and raised on the elastic contact surface. All protrusions are located on the radial center line of the arc-shaped arms, in the form of dots, short doodles, or arcs, and protrude on the elastic contact surface. When the above-mentioned leaf spring is used for a rotary hook, only the free ends of the arc-shaped arms and the protrusions contact the bobbin, facilitating heat dissipation, providing structural stability, and facilitating high-speed sewing operations.

The application relates to an adjustable rotating shuttle holder, a rotating shuttle assembly and a sewing machine, which comprises a shuttle holder body, a needle guard adjusting block arranged to slide along the axis direction parallel to the shuttle holder body, an adjusting bolt mounted on the shuttle holder body, and a locking bolt connecting the shuttle holder body and the needle guard adjusting block and used for locking the needle guard adjusting block on the shuttle holder body; the inner side of the shuttle holder body is provided with an arrangement groove for the needle guard adjusting block to slide; the adjusting bolt is provided with a rotating part and an adjusting cam; the shuttle holder body is provided with a rotating through hole arranged for the rotating part to rotate and penetrating the inner and outer surfaces of the shuttle holder; the needle guard adjusting block is provided with an adjusting hole arranged for the adjusting cam to cooperate with the adjusting cam; and the needle guard adjusting block is provided with a needle guard surface. The application has the effect that when different types of machine needles are replaced, the rotating shuttle does not need to be replaced, and the needle guard structure on the rotating shuttle can accurately support the machine needle.

Sewing system (100), comprehensive: a sewing machine (10); a camera (15) which captures an image of a reference position for sewing; a robot arm (110) which holds the sewing machine (10) and the camera (15); and a control device (90) wherein The control unit (90) controls the following operations: Forming a first stitch position (p11, p12), which results from a stitch formation of the sewing machine (10); and Forming a second stitch position (p21, p22) resulting from stitch formation by the sewing machine (10) after the sewing machine (10) has rotated at a prescribed angle about an axis of rotation which passes through a needle center position stored by the control device (90), and wherein The control unit (90) further performs a calibration process which calibrates the needle center position stored by the control unit (90) based on each position of the first stitch position (p11, p12) and the second stitch position (p21, p22) within image acquisition areas of acquisition images obtained by acquiring images of the first stitch position (p11, p12) and the second stitch position (p21, p22) using the camera (15).

The present application relates to a kind of precision guiding nest-preventing device and nest-preventing method integrated in sewing machine needle plate, the device is provided with fixed knife and movable knife on the lower surface of sewing machine large needle plate, the movable knife includes hooking part, dividing part, wire container groove and wire hole, cooperates with presser foot, blowing and suction pipe and connecting rod type driving mechanism, through the timing design of "stitching thread - guiding presser - stabilizing thread loop - cutting cleaning - resetting", realizes the precise guidance of thread end, cutting and cleaning.The device can reuse the built-in power of sewing machine, has compact structure and strong adaptability, can completely avoid the winding of starting thread, improve the quality and operation continuity of sewing product, and is suitable for all kinds of sewing machines such as lockstitch machine and pattern machine.

A bobbin and spool management system includes a bobbin topper having a central disc with upwardly and downwardly extending stanchions projecting therefrom, each being capped with a mushroom bolster and having a medially located chamfered collar. The upwardly projecting stanchion is adapted to mate with an axial bore in the barrel of a bobbin and retain the bobbin while the downwardly projecting stanchion is adapted to penetrate the axial bore in the barrel of a supply spool and be retained on the supply spool.

The utility model provides a disposable bobbin tube of high -efficient winding relates to textile tool technical field, include: synchronous bobbin tube, synchronous bobbin tube is the pipe that plastic injection moulding made, the inner tube wall surface of synchronous bobbin tube is provided with three to six inner lock direction lines, and the axis of inner lock direction lines is parallel with synchronous bobbin tube, synchronous bobbin tube can rotate with winding machine main shaft synchronously while keeping bobbin tube installation quick -witted, can install multiple bobbin tubes in the same winding machine main shaft and carry out the synchronous winding of multiple coils, if bobbin tube and winding machine main shaft sleeve connection are too close, then the disassembly of coil and the installation of bobbin tube are inconvenient, if sleeve connection is too slack, then bobbin tube will slip outside the main shaft, if multiple bobbin tubes are installed simultaneously and winding, then due to the difference of the slip degree of different bobbin tubes, lead to the winding amount of every bobbin tube is difficult to control accurately, can influence the problem of the batch manufacturing efficiency of coil.