13results about "Needle-threading devices" patented technology

The utility model discloses a threading device for a lockstitch sewing machine for garment production, and relates to the technical field of lockstitch sewing machines. The device is matched with a needle hole at the bottom of a needle. The device comprises a supporting rod, a presser foot support, a presser foot, a clamping component, a rotating component, a crochet hook and the like. By swinging the rotating part, the crochet hook penetrates through the needle hole to hang a thread and hooks out a sewing thread under the action of the spring, the problem that threading is difficult due to age and vision factors is effectively solved, the structure is simple, and operation is convenient and fast.

The application discloses a sewing machine facilitating needle threading, which comprises a sewing machine body and a machine base, the bottom of the sewing machine body is fixedly connected to the top of the machine base, a presser foot and a needle are installed in the sewing machine body, a needle hole is formed in the needle, a sliding groove sleeve is fixedly connected to one side of the needle, a mounting seat is fixedly connected to the other side of the needle, a needle threading plate is arranged below the sliding groove sleeve, a mounting shell is fixedly connected to one side of the needle threading plate, a clamping assembly for limiting a needle thread is arranged in the mounting shell, the clamping assembly passes through the needle hole, an adapter sleeve is arranged below the mounting seat, the adapter sleeve is internally provided with an adapter groove matched with the clamping assembly, and the adapter groove is internally provided with an adapter assembly for clamping the needle thread in the clamping assembly. The clamping assembly can quickly limit the needle thread, so that the trouble of manually threading the needle every time of sewing can be avoided, time is saved, and the sewing efficiency is improved.

The utility model discloses an outdoor jacket sewing device, which relates to the technical field of sewing and comprises a sewing machine main body, a workbench is arranged on the lower portion of the sewing machine main body, a sewing needle is arranged on the lower portion of the sewing machine main body, a transmission structure is arranged in the workbench, and a movable frame is arranged at the end of the sewing machine main body. A connecting plate is fixedly connected to the lower portion of the movable frame, a connecting block is fixedly connected to the lower portion of the connecting plate, and a supporting wheel is connected to the interior of the connecting block through a bearing. Through the arrangement of the conveying belt, the servo motor, the transmission roller, the connecting block and the supporting wheel, the effect of automatically conveying the fabric of the outdoor jacket is achieved, through the matched arrangement of the movable frame, the limiting block, the connecting plate, the check block and the fixing groove, the supporting wheel can be fixed in the using process, and the use is convenient. Therefore, the effect of conveying the jacket cloth in cooperation with the conveying structure is achieved, and the purpose that the sewing device conveys the jacket cloth to reduce the danger is achieved.

The utility model belongs to the technical field of sewing machine auxiliary tools, and particularly relates to a needle threading device which comprises a positioning piece, a first positioning face used for abutting against the side face of a sewing needle is arranged on one side of the positioning piece, and a positioning seat is arranged on the first positioning face and internally provided with a positioning groove. The positioning seat is also provided with a second positioning surface which is propped against the sewing needle mounting seat up and down; the first positioning face is further provided with a threading hole located in one side of the positioning seat, the sewing machine further comprises a threading piece arranged on the positioning piece in a sliding mode, and the threading piece is opposite to the threading hole and used for enabling the threading piece to penetrate through the threading hole and enter a sewing needle eye located in the first positioning face through sliding of the threading piece. Due to the fact that the threading hole is formed in the first positioning face, the positioning base and the positioning groove are integrally located above the first positioning face, the threading hole and the positioning base do not interfere with each other, and a manufacturer can properly adjust the size of the positioning groove so that the size of the positioning groove can be better matched with the size of an existing sewing needle.

The utility model discloses a threading mechanism of a sewing machine, which comprises a thread hooking plate and a thread hooking plate mounting rack, the thread hooking plate is adjustably connected with the thread hooking plate mounting rack, and the position of the thread hooking plate can be adjusted up and down. The thread hooking plate is installed on the installation block through the adjusting rod, and the thread hooking plate installation frame is rotatably connected to the adjusting rod and can drive a thread hook of the thread hooking plate to rotate to penetrate through a needle hole of the needle rod and is used for assisting threading. A first adjusting structure is arranged on the adjusting rod and can adjust the extending distance of the adjusting rod relative to the mounting block so as to adjust the position of the wire hooking plate left and right. A limiting rod is further arranged on the mounting block and used for limiting the front-back distance between the thread hooking plate and the needle rod, the length of the limiting rod can be adjusted, and the limiting rod abuts against the thread hooking plate mounting frame so as to adjust the front-back position of the thread hooking plate. According to the utility model, the up-and-down, left-and-right and front-and-back positions of the thread hooking plate can be adjusted accurately, so that the thread hooking plate is aligned with a needle hole of a needle rod, and the thread hooking plate can smoothly penetrate through the needle hole to assist threading and is prevented from colliding with or deviating from the needle hole.

A device for assisting with threading an eyed needle with the eye being of a type peripherally delimited by a rim extending substantially in a plane includes a solid body forming an eye receiving portion designed to receive the eye of the needle and to keep the needle in position in relation to the solid body. A passage in the solid body includes a guide portion that forms a first funnel for guiding the hook to bring the hook out of a retracted position and into a threading position. The guide portion also forms a second funnel for returning the hook to the retracted position from the threading position. Each time the hook transitions from and back to the retracted position, the hook moves through the eye of the needle, drawing the thread through the eye when the hook returns to the retracted position from the threading position.

This invention provides a high-speed threading mechanism for a single-needle quilting machine, belonging to the field of textile machinery technology. It addresses the problem that existing quilting machines often have components such as the thread guide hole and take-up lever hidden inside the machine or in confined spaces, resulting in slow threading speeds and significantly impacting quilting efficiency. The mechanism includes a guide funnel, a thread guide groove, a guide post, a threading head, a thread-fixing assembly, and a separation assembly. The thread guide groove is located inside the guide funnel. The guide post is also located inside the guide funnel. The threading head is located on the left side of the connecting post. The thread-fixing assembly is located on the outer surface of the guide funnel and on the left side of the connecting post. The separation assembly is located on the right side of the connecting post. This invention uses the trumpet-shaped arc surface of the magnetic funnel to guide the threading head of the fixed textile thread smoothly through the thread guide hole, take-up lever, and other precision components. The guide post can be disassembled with a single click and supports multi-angle bending operations, significantly improving threading flexibility and accuracy, and ensuring the efficiency of quilting operations.

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 invention relates to a device (1) for assisting with threading the eye of a needle (26), the eye being of the type bounded at its periphery by an edge extending substantially in a plane referred to as the eye opening plane. The assistance device (1) comprises a solid body (2) forming a housing, referred to as eye housing (3), designed to be able to accept the eye of the needle and to hold the needle in position with respect to the solid body (2), a passage (4) in the solid body (2) comprising a portion referred to as guide portion (5). The guide portion (5) forms a first funnel (201) for guiding deployment of the hook from the retracted position toward the threading position, and a second funnel (202) for guiding retraction of the hook (16) from the threading position toward the retracted position, through the eye of the needle each time, the thread thus being drawn as the hook retracts from the threading position toward the retracted position.

The tweezers with the threading apparatus function comprise a tweezers body and a threading assembly, and the tweezers body comprises a first tweezers arm and a second tweezers arm; the threading assembly comprises a base, a movable cylinder and a threading piece, the threading piece is connected with the base, a threading part is arranged at the front end of the threading piece, and a thread hooking groove is formed in the threading part; a positioning opening is formed in the front end of the movable cylinder, and the movable cylinder can be connected with the base in a mode of linearly moving back and forth between a first position and a second position; when the movable cylinder is at the first position, the threading part is positioned in a cylinder cavity of the movable cylinder; and when the movable cylinder moves to the second position, the threading part extends forwards from the positioning opening. Under the condition that normal functions of the tweezers are reserved, the threading function is added, threading from back to front can be achieved, and the pair of tweezers can adapt to more auxiliary threading scenes.

The invention relates to a device (1) for threading a needle (26) with an eye, the eye being of the type limited at its periphery by a rim extending substantially in a plane, called the eye opening plane; the aid device (1) being characterized in that it comprises a solid body (2) forming: a housing, called the eye housing (3), adapted to receive the eye of the needle and maintain the needle in position relative to the solid body (2), and; a passage (4) through the solid body (2) and comprising a section, called the guide section (5); a first end (6) of said guide section (5) opening outside the solid body (2); a second end (7) of said guide section (5) opening into said eye housing (3);said guide section (5) forming a funnel (8) for guiding the sewing thread, which is carried in movement within said guide section (5) towards said housing (3) of the eye, so that the sewing thread passes through the eye of the needle and emerges outside the solid body (2). Figure of the abstract: Figure 3;

The invention relates to the technical field of lockstitch sewing machines, and provides an intelligent lockstitch sewing machine for knitted garment production, which comprises a rack, a lockstitch sewing machine body, an auxiliary cloth feeding assembly, a rotating assembly, an auxiliary threading mechanism and a bobbin switching assembly. The rotating assembly is used for driving the auxiliary cloth feeding assembly to rotate around the needle plate mechanism so as to assist the cloth in automatic curve sewing; a pressure detection assembly is arranged on the bobbin switching assembly and used for monitoring the tension of a sewing thread and controlling the bobbin switching assembly to automatically replace bobbins when it is detected that the thread is broken or thread materials are about to be used up; the auxiliary threading mechanism can be matched with the intelligent mechanical arm to complete automatic threading operation. By means of the technical scheme, the technical problems that an existing lockstitch sewing machine is low in automation degree, operation is inconvenient during curve sewing, the thread changing and threading process is tedious and time-consuming, and production efficiency is seriously affected are solved.