417results about "Loop takers" patented technology

The utility model relates to the technical field of sewing machines, in particular to a guide rail of an inner shuttle frame, the inner shuttle frame and a rotating shuttle, which comprises a non-closed annular guide rail body with a self-lubricating wear-resistant function, a thread hooking head is arranged at one end of the annular guide rail body, and a thread loosening head is arranged at the other end of the annular guide rail body. The inner side face of the annular guide rail body is concavely provided with a mounting cavity and a plurality of meshing holes concavely formed in the side wall of the mounting cavity, and the meshing holes are distributed along the mounting cavity. The annular guide rail body has the self-lubricating and wear-resisting functions, the guide rail is firmly connected to the outer side wall of the inner shuttle body, and the guide rail on the inner shuttle body is high in position precision and good in stability.

The invention relates to the technical field of sewing machines, in particular to a guide rail of an inner shuttle frame, the inner shuttle frame and a rotating shuttle. The guide rail comprises a non-closed annular guide rail body with a self-lubricating wear-resisting function, a thread hooking head is arranged at one end of the annular guide rail body, and a thread loosening head is arranged at the other end of the annular guide rail body; the inner side face of the annular guide rail body is concavely provided with a mounting cavity and a plurality of meshing holes concavely formed in the side wall of the mounting cavity, and the meshing holes are distributed along the mounting cavity. The annular guide rail body has the self-lubricating and wear-resisting functions, the guide rail is firmly connected to the outer side wall of the inner shuttle body, and the guide rail on the inner shuttle body is high in position precision and good in stability.

The utility model provides an inner shuttle structure of a sewing machine, and belongs to the technical field of sewing machine accessories. The problem that in the prior art, thread throwing is prone to being generated in the sewing process is solved. The inner shuttle structure of the sewing machine comprises a cylindrical inner shuttle body, the outer edge of the inner shuttle body is provided with a needle falling groove and an anti-injury protruding edge arranged in the radial direction of the inner shuttle body in a protruding mode, the inner edge of the inner shuttle body is provided with a protruding block, and the protruding block and the anti-injury protruding edge are located on the same side of the inner shuttle body. A blocking face and a guiding face which intersect with the inner edge face of the inner shuttle body are arranged on the sides, close to and away from the needle falling groove, of the protruding block respectively, the guiding face and the blocking face are in smooth transition connection, and the included angle between the guiding face and the inner edge face of the inner shuttle body is an obtuse angle. The included angle between the blocking face and the inner edge face of the inner shuttle body is smaller than the included angle between the guide face and the inner edge face of the inner shuttle body. The sewing machine has the advantages that the probability of thread throwing and thread breaking in the sewing process can be effectively reduced, and the sewing quality is improved.

An apparatus and method for applying stitches to a decorative component having a three dimensional configuration is provided. A head for applying stitches to a decorative component having a three dimensional configuration, including: a needle bar assembly operatively coupled to the head; a looper configured to cooperate with the needle bar assembly in order to prove a plurality of stitches in the decorative component, the looper rotating in a plane parallel to the decorative component; a post assembly configured to drive the looper in a reciprocating fashion in the plane, wherein the post assembly is operatively coupled to a motor configured to drive the needle bar assembly in a reciprocating fashion, the post assembly being operatively coupled to the head via a cylinder arm assembly and a downshaft assembly; and wherein the cylinder arm assembly is rotated in a synchronized manner with a rock frame through mechanical linkage connecting a rock frame drive shaft to the cylinder arm assembly.

The utility model relates to the technical field of sewing machines, in particular to an outer shuttle frame and a rotating shuttle, which comprise an outer shuttle main body with an integral structure, a mounting cavity arranged in the middle of the outer shuttle main body, a guide groove concavely arranged on the side wall of the mounting cavity and a mounting surface arranged on the top end surface of the guide groove, and at least one arc-shaped limiting piece detachably arranged on the mounting surface. The arc-shaped limiting piece is used for limiting the guide rail of the inner shuttle frame in the guide groove, the side wall of the outer shuttle body is provided with at least one dust discharging hole communicated with the guide groove, the top edge of the outer shuttle body is provided with a thread pushing protrusion, a needle inserting groove located below the thread pushing protrusion and a needle protecting face connected with the needle inserting groove, and the needle inserting groove is used for insertion of a machine needle. The outer shuttle body is of an integrated structure, the structural stability is good, the upper threads are pushed outwards through the thread pushing protrusions, the upper threads are convenient to loosen, the needle protection faces are arranged for limiting and protecting the machine needles, dust in the guide grooves is discharged through the dust discharging holes, heat dissipation is facilitated, and the fault probability that the inner shuttle frame is clamped in the outer shuttle body is reduced.

The rotating shuttle comprises a rotating shuttle frame, a rotating shuttle race, a rotating shuttle plate and a thread guide plate, the rotating shuttle plate and the thread guide plate are fixed to the side edge of the rotating shuttle race through fastening screws respectively, the rotating shuttle plate comprises the pressing piece tip and a shuttle plate body which are in a separated state, the pressing piece tip comprises a top plate, a side plate and a tip end, a U-shaped groove is formed in the side plate, and the top plate is connected with the top plate. The U-shaped groove comprises an inclined section, the symmetrical line of the inclined section points to the tip end, an included angle alpha is formed between the symmetrical line of the inclined section and the horizontal line, the two ends of the inclined section are arranged at the outer end point of the middle portion and the tail portion respectively, screw holes are formed in the side edges, and the U-shaped groove is fixedly connected with the screw holes through positioning bolts. The part, making contact with the top plate, of the top face of the side edge is provided with a cut short face, the cut short face makes contact with the bottom face of the top plate to form a receding gap, and when the positioning bolt is arranged at the outer end point, the cut short face is matched with the top plate through the receding gap. The rotating shuttle disclosed by the utility model can adapt to different thread-off duration requirements.

The invention provides a sewing machine, and belongs to the technical field of sewing equipment. The problem that an existing sewing machine is insufficient in sewing quality is solved. The sewing machine comprises a base, a needle plate with a needle falling hole, a rotating shuttle located below the needle plate, a thread shifting rod and a rotating piece capable of horizontally rotating, a guide piece located on the side portion of the rotating shuttle and capable of horizontally swinging is arranged on the base, the thread shifting rod comprises a rod body and an arc-strip-shaped thread shifting head, and the rod body is connected to the guide piece in a sliding mode in the axial direction of the rod body. One end of the thread pulling head is fixedly connected to the end, close to the rotating shuttle, of the rod body and bent upwards relative to the rod body, the other end of the rod body is rotationally connected to the position, deviating from the rotating center of the rotating piece, of the rotating piece, and when the rotating piece drives the rod body to move, the other end of the thread pulling head can be located between the needle falling hole and the rotating shuttle. The sewing quality is further improved, and the manufacturing cost is remarkably reduced on the basis.

The invention provides a unilateral curved needle type three-dimensional composite material preform sewing head and a sewing method thereof, and belongs to the technical field of unilateral sewing, the unilateral curved needle type three-dimensional composite material preform sewing head comprises a rack, a thread leading mechanism, a thread hooking mechanism, a synchronous transmission mechanism, a thread guiding mechanism, a presser foot plate and a driving mechanism, the servo motor and the speed reducer are used for driving the thread leading needle and the thread hooking needle to rotate back and forth on a fixed plane respectively; the synchronous transmission mechanism ensures that cranks in the thread leading mechanism and the thread hooking mechanism rotate synchronously, and synchronous control can be achieved through one servo motor. The thread guide mechanism guides the trend of the suture thread, the tension of the suture thread is ensured, and the stitch forming efficiency is improved. It can be seen that the device is compact in structure and wide in application range, the prefabricated body can be sewn according to the penetrating thickness, non-penetrating sewing can be achieved, laying and splicing are completed, and the production efficiency and the product consistency are improved.

The utility model discloses an ultra-high-speed thick material zigzag seam transmission mechanism which comprises an upper shaft and a lower shaft which rotate on a sewing machine shell in a fixed-axis mode, the upper shaft is driven by a power mechanism to rotate in the fixed-axis mode, and synchronous belt wheels are coaxially and fixedly connected to the corresponding positions of one end of the upper shaft and one end of the lower shaft. The outer contours of the two synchronous belt pulleys are in transmission connection with a synchronous belt enabling the upper shaft and the lower shaft to rotate synchronously, and a rotating shuttle shaft which is horizontally arranged and is perpendicular to the lower shaft is rotationally connected to the sewing machine shell at the end, away from the synchronous belt pulleys, of the lower shaft through a fixed shaft. The end, close to the lower shaft, of the rotating shuttle shaft is coaxially and fixedly connected with a rotating shuttle assembly carrying bottom threads to complete stitches, the outer contour of the end, close to the rotating shuttle assembly, of the lower shaft is coaxially and fixedly connected with a rotating shuttle driving gear, and a rotating shaft set parallel to the lower shaft is rotationally connected to the portion, close to one side of the rotating shuttle driving gear, of the sewing machine shell through a fixed shaft. The sewing machine has the advantages that the occupied space below the bottom plate is reduced, and the working efficiency of the sewing machine is improved.

The utility model discloses a plastic guide rail rotating shuttle, which belongs to the technical field of textile machinery and comprises a shuttle race, a guide rail mechanism is arranged on the periphery of the shuttle race, the guide rail mechanism comprises a structural member integrated with the outer wall of the shuttle race and a grinding guide member arranged on the periphery of the structural member, and the structural member and the shuttle race are integrally made of the same material. The grinding guide piece is made of a special plastic material, and the structural piece and the grinding guide piece jointly construct the flat upper surface, the flat lower surface and the flat outer surface of the guide rail mechanism.

The utility model provides a sewing machine, and belongs to the technical field of sewing equipment. The problem that an existing sewing machine is insufficient in sewing quality is solved. The sewing machine comprises a base, a needle plate with a needle falling hole, a rotating shuttle located below the needle plate, a thread shifting rod and a rotating piece capable of horizontally rotating, a guide piece located on the side portion of the rotating shuttle and capable of horizontally swinging is arranged on the base, the thread shifting rod comprises a rod body and an arc-strip-shaped thread shifting head, and the rod body is connected to the guide piece in a sliding mode in the axial direction of the rod body. One end of the thread pulling head is fixedly connected to the end, close to the rotating shuttle, of the rod body and bent upwards relative to the rod body, the other end of the rod body is rotationally connected to the position, deviating from the rotating center of the rotating piece, of the rotating piece, and when the rotating piece drives the rod body to move, the other end of the thread pulling head can be located between the needle falling hole and the rotating shuttle. According to the utility model, the sewing quality is further improved, and the manufacturing cost is obviously reduced on the basis.

To provide: a sewing machine which can accurately adjust the positional relation between a sewing needle mounted on a needle bar and a sword point or a needle guard of a shuttle mechanism; an adjustment method for adjusting the position of the shuttle mechanism with respect to the sewing needle in the sewing machine; and a sensor unit.SOLUTION: A sewing machine includes: a needle bar; a shuttle mechanism including a sword point and a movable body which has a needle guard; a shuttle shaft for rotationally driving the movable body; a position adjustment mechanism capable of adjusting a position of the movable body in an axial direction of the shuttle shaft; a frame 7 for accommodating the shuttle mechanism, a shuttle shaft and the position adjustment mechanism; a first sensor 4A which has a contact surface 433 that comes into contact, from one side in the axial direction, with respect to a sewing needle 31A arranged at an encounter position which is a position of the sewing needle 31A at a timing when the sword point supplements a loop formed at a needle thread, and which is for detecting a displacement amount of the sewing needle 31A in the axial direction; and an arm part 4B for supporting the first sensor 4A, and fixed to the frame 7.SELECTED DRAWING: Figure 10

The utility model discloses a double bottom shuttle driving mechanism of a rotary pattern sewing machine, which comprises a rotary seat capable of rotating, and the rotary seat is provided with a first bottom shuttle mounting seat and a second bottom shuttle mounting seat. A rotatable first vertical bottom shuttle is arranged in the first bottom shuttle mounting seat, the first vertical bottom shuttle is connected with the upper end of a first vertical shaft, and the first vertical shaft is provided with a first gear. A second vertical bottom shuttle capable of rotating is arranged in the second bottom shuttle mounting seat, the second vertical bottom shuttle is connected with the upper end of a second vertical shaft, and the second vertical shaft is provided with a second gear. The bottom shuttle driving shaft penetrates through the first bottom shuttle mounting seat and the second bottom shuttle mounting seat; and a third gear matched with the first gear and a fourth gear matched with the second gear are mounted on the bottom shuttle driving shaft. And the rotating seat is provided with a driving motor for driving the bottom shuttle driving shaft to rotate.

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 invention relates to the technical field of sewing machines, in particular to an outer shuttle frame and a rotating shuttle, which comprise an integrally constructed outer shuttle main body, the middle of the outer shuttle main body is provided with a mounting cavity, the side wall of the mounting cavity is concavely provided with a guide groove and a mounting surface arranged on the top end surface of the guide groove, and the mounting surface is detachably provided with at least one arc-shaped limiting piece. The arc-shaped limiting piece is used for limiting the guide rail of the inner shuttle frame in the guide groove, the side wall of the outer shuttle body is provided with at least one dust discharging hole communicated with the guide groove, the top edge of the outer shuttle body is provided with a thread pushing protrusion, a needle inserting groove located below the thread pushing protrusion and a needle protecting face connected with the needle inserting groove, and the needle inserting groove is used for insertion of a machine needle. The outer shuttle body is of an integrated structure, the structural stability is good, the upper threads are pushed outwards through the thread pushing protrusions, the upper threads are convenient to loosen, the needle protection faces are arranged for limiting and protecting the machine needles, dust in the guide grooves is discharged through the dust discharging holes, heat dissipation is facilitated, and the fault probability that the inner shuttle frame is clamped in the outer shuttle body is reduced.

The invention relates to the technical field of sewing equipment, in particular to a thread locking device and a sewing machine. The thread locking device comprises a machine body, a thread locking module, a bottom thread clamping module and a bottom thread tightening module, and a curved needle is installed in the machine body and used for driving a bottom thread to move. The thread locking module comprises a first driving part, a connecting rod assembly and a thread locking knife, the first driving part is installed on the machine body, the output end of the first driving part is connected with the connecting rod assembly, and the thread locking knife is installed at the end, away from the first driving part, of the connecting rod assembly; and the thread locking knife is driven to move towards or away from the curved needle. The bottom line clamping module is installed on the machine body and used for clamping a bottom line during line locking so as to prevent the bottom line from moving. The bottom thread tightening module is installed on the machine body and used for pulling the bottom thread during thread locking so as to tighten the bottom thread. According to the thread locking device and the sewing machine, the problem that an existing sewing machine thread locking device is low in thread locking success rate is solved.

The utility model relates to a sewing machine which comprises a rotating shuttle body, a shuttle peg and a detection device. The rotating shuttle body is arranged on the machine body and internally provided with a containing cavity. The shuttle peg is rotatably arranged in the containing cavity in the axial direction of the shuttle peg, the shuttle peg comprises a first panel, a second panel and a shuttle peg shaft, a side face hole is formed in the first panel, and the reflection coefficient of the second panel is larger than that of the first panel; detection signals of the detection device correspond to the side face holes, the detection device collects the detection signals reflected by the first panel or the second panel and generates reflection signals when the shuttle peg rotates, and the rotating speed of the shuttle peg is calculated through the reflection signals. According to the invention, the surface with a high reflection coefficient is arranged on the second panel and is compared with the side surface hole in the first panel, so that the laser sensor can recognize a hole signal more accurately, and the negative influence of high reflectivity of a material on the recognition capability of the sensor is overcome; the technical problem that in the prior art, when a shuttle peg rotates, high reflectivity of the material of the shuttle peg affects the rotating speed detection accuracy is solved.

The present invention addresses the problem of preventing hitch stitches caused by lower thread factors. A needle plate (19) has a needle hole (19a) and a guide hole (31) that communicates with the needle hole. The guide hole is offset toward a front surface of a sewing machine and is also offset in the rotation direction of a bobbin case from the line of vertical movement of a sewing needle. The needle plate also has a groove part (32) that extends from the guide hole (31) in front of the needle hole in the direction opposite the rotation direction of the bobbin case. The top of the groove part and the portion of the groove part that leads to the guide hole are open, and the remainder of the groove part is a bottom surface and a side wall. During a sewing operation, a lower thread that protrudes from the bobbin case extends upward through the needle hole or the guide hole. Depending on the movement direction of a holder (a frame 5) for an article to be sewed, the lower thread passes through the guide hole and is guided to the front side of the needle hole via the groove part. The bottom surface of the groove part is closed, which prevents an upper thread loop that rises along the lower thread from catching on the groove part.

An apparatus and method for applying stitches to a decorative component having a three dimensional configuration is provided. A head for applying stitches to a decorative component having a three dimensional configuration, including: a needle bar assembly operatively coupled to the head; a looper configured to cooperate with the needle bar assembly in order to provide a plurality of stitches in the decorative component, the looper rotating in a plane parallel to the decorative component; a post assembly configured to drive the looper in a reciprocating fashion in the plane, wherein the post assembly is operatively coupled to a motor configured to drive the needle bar assembly in a reciprocating fashion, the post assembly being operatively coupled to the head via a cylinder arm assembly and a downshaft assembly; and wherein the cylinder arm assembly is rotated in a synchronized manner with a rock frame through mechanical linkage connecting a rock frame drive shaft to the cylinder arm assembly.

The utility model provides a needle skipping prevention device which is arranged in a sewing machine, and the sewing machine comprises a bottom plate, a needle plate arranged on the upper surface of the bottom plate, a rotating shuttle arranged below the needle plate, and a machine needle which reciprocates up and down. The machine needle guides an upper thread to sequentially penetrate through a sewing material placed on the needle plate and the needle plate from top to bottom and then ascend, a thread ring is formed below the needle plate, the needle skipping prevention device comprises a thread blocking piece arranged between the rotating shuttle and the needle plate, and the thread blocking piece comprises a thread blocking part extending in the direction where the thread ring is located. The utility model further provides a sewing machine which comprises the needle skipping prevention device. The utility model has the beneficial effects that the thread blocking piece is arranged between the rotating shuttle and the needle plate, and the thread blocking piece applies extra resistance to the thread ring, so that the purpose of expanding the thread ring is achieved, the thread hooking of the rotating shuttle is more convenient, and the needle skipping phenomenon is reduced.

The present invention relates to the technical field of sewing, and, in particular, a vertical shuttle bed inner shuttle, comprising an inner shuttle, a shuttle bobbin case with a bottom-thread outer end check, a spring piece, and a bobbin with a bottom-thread inner end clamping function. The inner shuttle integrates the shuttle bobbin case and the bobbin, the bobbin is connected to a coreless bottom thread core, and the shuttle bobbin case with the bottom-thread outer end check is connected to the side wall of the inner shuttle. In the present invention, the shuttle bobbin case with the bottom-thread outer end check is directly designed on the inner shuttle, and the spring piece is designed to provide adjustable thread release damping. The bobbin with the bottom-thread inner end clamping function is designed to mount the coreless bottom thread core, and under the fastening action of a fixing screw, the spring piece provides essential damping to the bobbin, preventing excessive thread release caused by sewing vibrations and thread release inertia. When a bottom thread is depleted, sewing can be resumed by simply loading a new bottom thread core onto the bobbin, and the thread core usage status and remaining amount can be directly visually monitored from the end face, thus simplifying the steps of vertical shuttle bed bobbin core replacement, such that sewing can be resumed simply with a single action of loading the thread core, making the device more convenient to use.

The utility model relates to an outer shuttle, a rotating shuttle and a sewing machine, the outer shuttle comprises a base structure, the base structure is provided with a rotating shuttle shaft mounting hole, a lubricating oil containing space and a lubricating oil communication channel, and the lubricating oil communication channel is communicated with the lubricating oil containing space and the exterior of the base structure; the moon ring structure is arranged on the base structure and extends towards one side far away from the rotating shuttle shaft; an outlet of the lubricating oil communicating channel is located in the side, away from the rotating shuttle shaft, of the base structure and located in the moon ring structure. According to the technical scheme, the problem that in the prior art, the service cycle of a rotating shuttle is short is effectively solved.

The present application belongs to the technical field of sewing machines, and relates to a thread catching and air suction device of a sewing machine, which comprises: a rotating hook arranged below a bottom plate of the sewing machine and driven by a lower shaft to rotate along a first circumferential direction about an axis thereof; a thread cutting assembly comprising a fixed blade and a movable blade, the fixed blade being fixed below the bottom plate, the movable blade being in an arc-shaped plate structure, the arc shape of the movable blade being arranged at a distance from and surrounding an outer periphery of the rotating hook, the movable blade being rotatable from a sewing position to a thread cutting position along a second circumferential direction; a thread catching assembly comprising an arc-shaped thread catching plate, the arc shape of the thread catching plate being arranged at a distance from and surrounding the outer periphery of the rotating hook, an end of the thread catching plate being provided with a thread catching hole, the thread catching plate being rotatable from the sewing position to a thread catching position along the second circumferential direction; and an air suction assembly comprising an air suction pipe connected with a negative pressure device. The thread catching and air suction device of the sewing machine provided by the present application can solve the bird nest problem of the sewing machine, and has excellent high-speed adaptability and high motion precision.

The invention discloses a crescent rotating shuttle peg shell. The crescent rotating shuttle peg housing according to an embodiment of the present invention is characterized by integrally comprising: an upper thread guide part (10); a lower wire guide ring (20); a fixing aid (35); a center fixing part (30); and a discharge guide spring member (50).

The invention provides a sewing machine which can synchronize the vertical motion of a machine needle and the rotation motion of a shuttle with good precision. The sewing machine includes: a needle bar; a main shaft for driving the needle bar; a shuttle shaft (8B) that rotates in conjunction with the rotation of the main shaft; a shuttle mechanism (8A) at least provided with: a shuttle hook (83) having a hook tip (83C) for capturing an upper thread penetrating through a needle attached to a needle bar; and a driver (84) having a needle guard (84C) that guides the needle by coming into contact with the needle, the shuttle and the driver rotating under the action of the rotational driving force of the shuttle shaft. And a second sensor (6B) that detects that the driver is disposed at a sensor rotation position, which is a predetermined rotation position. The second sensor is positioned further outward than the driver in the radial direction with respect to the center of rotation of the driver. The driver has a detected body (84F) that extends outward in the radial direction and is detected by the second sensor.

The utility model discloses a multi-head high-speed quilting machine which comprises a feeding mechanism, a thread stand, a connecting piece, a front standing table, a main machine, an X-direction moving mechanism, a cloth spreading mechanism and a rear standing table. The feeding mechanism is located at the foremost end of the equipment and connected with the X-direction moving mechanism through a connecting piece. The feeding mechanism is connected with the coil holder; the front standing table is located between the main machine and the wire frame. The X-direction moving mechanism is connected with the host; the cloth spreading mechanism is connected with the X-direction moving mechanism; the rear standing table is positioned behind the main machine; the quilting machine solves the problems of poor thick material sewing capacity and low sewing speed when multiple layers of materials are sewn in the quilting field, greatly improves the production efficiency, and is suitable for large-scale and industrial production requirements.

The present application proposes a split-type flat-bed sewing machine, which specifically relates to the technical field of flat-bed sewing machine manufacturing. The flat-bed sewing machine has a frame, a table, a thread-up mechanism and a thread-down mechanism, and is characterized in that the thread-up mechanism at least has a needle bar assembly, a presser foot lifting assembly and a thread-taking assembly, and the thread-down mechanism at least has a feed dog assembly, a rotary hook assembly and a thread-cutting assembly, and there is no mechanical transmission connection between the thread-up mechanism and the frame, and the thread-down mechanism has no mechanical transmission connected to the table. The present application proposes a split-type flat-bed sewing machine, which has an thread-up mechanism and a thread-down mechanism that each operate independently, and cleverly separates the thread-up mechanism and the thread-down mechanism in terms of mechanical transmission, cancels the traditional upper and lower linkage mechanical transmission structure, and realizes the oil-free operation of the flat-bed sewing machine mechanical transmission mechanism without lubrication, simplifies the mechanical structure, and greatly reduces the manufacturing cost of the sewing machine, and has a high promotion value.

The utility model discloses vertical sewing equipment with a fixed machine head, which comprises a machine base, a machine head frame and a vertical shuttle, a needle bar mechanism is arranged above the machine base, the machine head frame is arranged below the machine base and is opposite to the needle bar mechanism, and the machine head frame comprises a horizontally arranged main shaft and a first driving device connected with the main shaft; the machine head frame is provided with a pivoting seat, the pivoting seat is provided with a vertically-arranged driving shaft in a rotating mode, the driving shaft is connected with a main shaft, the main shaft can drive the driving shaft to rotate, the vertical shuttle and the driving shaft are arranged in parallel and are vertically arranged on the pivoting seat, the vertical shuttle is arranged in a pivoting mode, the driving shaft can drive the vertical shuttle to work, and a thread passing hole is formed in the middle of the vertical shuttle. And the needle rod can rotate between a position extending into the thread passing hole and a position far away from the thread passing hole. The main shaft which is horizontally arranged is matched with the driving shaft which is vertically arranged, so that the vertical shuttle which is vertically arranged is driven to rotate, a plurality of devices are driven by one structure, and the whole device is more compact.