13results about "Take-up devices" patented technology

The utility model provides a variable thread quantity take-up auxiliary device, which relates to the technical field of clothing sewing, and comprises a driver, a transmission connecting rod, a slide block and a guide member, during working, the driver drives the slide block to do reciprocating translational motion along the guide member through the transmission connecting rod, the guide member is provided with a chute, and the slide block does linear displacement along the chute; the sliding block is provided with a movable thread passing hook, the movable thread passing hook can move horizontally along with the sliding block, the movable thread passing hook pulls a thread to move, the position of the thread is changed by changing the position of the movable thread passing hook, the position state of the thread is changed, and the thread supply amount is adjusted.

The technical scheme belongs to the technical field of template machines, and particularly relates to a needle rod device of a template machine, which comprises a rack, a needle rod, a needle head, a needle rod, a needle rod and a needle rod, the displacement mechanism is arranged on the machine frame, the displacement mechanism comprises a displacement driving part and a needle rod connector arranged at the output end of the displacement driving part, the front end of the needle rod connector is arranged outside the machine needle rod in a sleeving mode, and the displacement driving part drives the machine needle rod to move in a reciprocating mode in the needle inserting direction through the needle rod connector; the rotating mechanism is arranged on the machine frame, the rotating mechanism comprises a rotating driving part, the machine needle rod is arranged at the output end of the rotating driving part, and the rotating driving part is used for driving the machine needle rod to rotate with the axis of the machine needle rod as the center.

The invention discloses a speed-reduction-controlled thread take-up mechanism and a sewing machine, and relates to the technical field of sewing machines, the speed-reduction-controlled thread take-up mechanism comprises a base, a main shaft, a thread bonding cam and a speed reduction assembly, the main shaft is rotationally matched on the base, the thread bonding cam is rotationally matched on the base, and a groove is formed in the side wall of the thread bonding cam; the speed reduction assembly is arranged between the spindle and the routing cam, the spindle drives the routing cam to rotate through the speed reduction assembly, and the rotating speed of the routing cam is lower than that of the spindle. According to the take-up mechanism with the speed reduction control function and the sewing machine, the low rotating speed of the thread bonding cam can be kept under the high-speed sewing condition, and then the thread supply stability is kept.

The utility model belongs to the technical field of sewing machines. The problem that in the prior art, threading and removing of a covering thread are difficult is solved. The thread passing structure of the sewing machine comprises a first thread passing hole formed in a thread passing frame and a second thread passing hole formed in a supporting frame, a rocker arm frame is connected with a thread bonding plate with a third thread passing hole, and a machine shell is further connected with a tensioning frame with a fourth thread passing hole. The first thread passing hole, the third thread passing hole, the second thread passing hole and the fourth thread passing hole are sequentially distributed from top to bottom, the fourth thread passing hole, the third thread passing hole, the second thread passing hole and the first thread passing hole are sequentially distributed from left to right, and the first thread passing hole is formed in the front-back direction of the sewing machine. The second thread passing hole and the third thread passing hole are formed in the left-right direction of the sewing machine, and the fourth thread passing hole is formed in the up-down direction of the sewing machine. The utility model has the advantage of greatly facilitating the threading and removing operation of the covering thread.

Embodiments of present disclosure relates to a thread drawing device and a thread drawing method. The thread drawing device comprises: a drive assembly (70) comprising a drive wheel (72) comprising a working platform (722) for supporting a thread (85), the thread (85) comprising a fixed end (852) fixed on an object (90) and a movable end (854) carried by a tool, a pressing assembly (60) comprising a pressing member (62) configured to move between a first position at which the pressing member (62) engages the working platform (722) to clamp the thread to be pulled therebetween and a second position at which the pressing member (62) disengages from the working platform (722) to release the thread to be pulled; and a motor (74) configured to rotate the drive wheel (72) when the pressing member (62) is at the first position so as to move a loose part (855) of the thread at the fixed end from the fixed end to the movable end.

The utility model belongs to the technical field of sewing equipment, and particularly relates to a sewing machine. Comprising a machine shell and a take-up-lever pin, a take-up-lever pin hole and an adjusting shaft hole are formed in the machine shell, the diameter of the take-up-lever pin hole is larger than or equal to the aperture of the adjusting shaft hole, the take-up-lever pin hole and the adjusting shaft hole are coaxially arranged, and the take-up-lever pin comprises a take-up-lever pin body and an eccentric section eccentrically arranged at one end of the take-up-lever pin body. The eccentric section is parallel to the axis of the take-up-lever pin body, the take-up-lever pin body is arranged in the take-up-lever pin hole, and the eccentric section is connected with the take-up-lever assembly. The take-up-lever pin hole and the adjusting shaft hole are coaxially arranged, the take-up-lever pin can be connected with a take-up-lever assembly only by arranging the take-up-lever pin into an eccentric structure, the take-up-lever pin hole and the adjusting shaft hole can be machined at the same time through one drilling tool, two-time clamping is not needed, machining is easy and convenient, and precision is high.

The utility model discloses a thread picking mechanism for sewing machine relates to sewing machine technical field, including thread picking lever, thread picking connecting rod and thread picking cam, one end of thread picking lever is fixedly connected with the connecting block, is equipped with the card hole on the connecting block, be provided with the sliding plate in thread picking connecting rod, the sliding plate sliding connection is in thread picking connecting rod, and the one end of sliding plate is through the one side of thread picking connecting rod to the outside of thread picking connecting rod, one end of sliding plate is fixedly connected with the L shaped clamping plate, the one end away from L shaped clamping plate of thread picking connecting rod is equipped with the sliding slot, the L shaped clamping plate sliding connection is in the sliding slot, the utility model discloses buckle type connection, when replacing thread picking lever, only need to pull out the sliding plate, can complete dismounting and installation in short time.

This utility model discloses a flexible thread feeding device and sewing equipment, including a thread take-up crank, a thread take-up connecting rod, and a thread take-up lever. The thread take-up lever includes a thread take-up arm and a thread passage hole. One end of the thread take-up connecting rod is hinged to the thread take-up lever, and the other end of the thread take-up connecting rod is hinged to an adjustment component. The adjustment component includes an adjustment crank and a drive source. One end of the adjustment crank is hinged to the drive source, and the other end of the adjustment crank is hinged to the thread take-up connecting rod. The adjustment component moves the thread take-up connecting rod and the hinged end of the adjustment crank to a target position by adjusting the adjustment crank, so that the thread passage hole of the thread take-up lever performs a target stroke. The sewing equipment includes a flexible thread feeding device, which is equipped with an electronic control system for controlling the adjustment component.

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 utility model discloses a thread take-up shifting fork for thread shuttle winding, which comprises a shifting fork, a shifting fork support and a linear driving mechanism arranged on the shifting fork support, and a guide groove is arranged on the linear driving mechanism. One end of the shifting fork is rotationally connected with the shifting fork support, the other end of the shifting fork is used for taking up threads, the shifting fork is connected with the linear driving mechanism and located in the guide groove, and the linear reciprocating motion of the linear driving mechanism can drive the shifting fork to swing along the guide groove. The shifting fork is effectively prevented from deviating during movement, the guide groove is simple in structure, and the movement stability of the take-up shifting fork is ensured with low cost.

The invention belongs to the technical field of sewing machinery, and discloses a motor thread bonding device and a sewing machine. The motor thread bonding device comprises a transmission assembly and an adjusting mechanism, the adjusting mechanism comprises a clamping assembly and a thread moving assembly, the clamping assembly and the thread moving assembly are connected to the transmission assembly, the clamping assembly is used for clamping an upper thread, and the thread moving assembly is used for adjusting the length of the upper thread between a thread picking device and the clamping assembly; when the transmission assembly moves in the first direction, the clamping assembly increases the clamping force on the upper thread, and the thread moving assembly reduces the length of the upper thread between the thread picking device and the clamping assembly; when the transmission assembly moves in the second direction, the clamping assembly reduces the clamping force applied to the upper thread, and the thread moving assembly increases the length of the upper thread between the thread picking-up device and the clamping assembly. The motor thread bonding device is simple in structure and convenient to operate, and a user can move the transmission assembly according to the thickness of cloth to be sewn so as to synchronously adjust the upper thread tension and the thread quantity.

The invention relates to the technical field of sewing, in particular to a sewing thread control device of a flat seaming machine and the flat seaming machine. A sewing thread control device of a flat seaming machine comprises a rack, a main shaft, a needling mechanism and a thread picking mechanism, and the main shaft is rotationally installed on the rack; the needling mechanism is in transmission connection with the main shaft and comprises a plurality of flat seaming machine needles, the flat seaming machine needles can be driven by the main shaft to puncture the fabric in a reciprocating mode, and the flat seaming machine needles are used for arranging sewing threads in a penetrating mode and enabling the sewing threads to form thread rings; the take-up mechanism comprises a take-up assembly and a transmission assembly, the take-up assembly is installed on the rack, and the transmission assembly is in transmission connection with the main shaft and the take-up assembly and can be driven by the main shaft to drive the take-up assembly to take up or supply wires to the wire rings; wherein when a thread ring formed by the sewing thread on the last flat seaming machine needle falls off from the curved needle, the thread take-up assembly immediately starts to take up the thread. By changing the take-up time sequence of the flat seaming machine, sewing stitches can be better controlled.

The invention discloses a thread adjusting device of a sewing machine and a sewing method applying the thread adjusting device, and aims to provide the thread adjusting device which can adjust thread tension in time according to needs in the working process of the sewing machine; according to the thread adjusting device and the sewing method using the thread adjusting device, the thread ends can be cut, the cut thread ends can be pulled out from the bottom of sewing materials after sewing is completed, and the thread pulling amount can be adjusted. A thread adjusting device of a sewing machine comprises a support; the thread picking plate is rotationally arranged on the bracket through a supporting shaft; the thread adjusting and passing channel comprises two threading holes formed in the support and an adjusting hole formed in the thread picking plate, and the thread picking plate is located between the two threading holes; the take-up plate driving mechanism comprises a driving motor for driving the take-up plate to rotate; a sewing thread of the sewing machine sequentially passes through one threading hole, the adjusting hole and the other threading hole; the thread take-up plate driving mechanism drives the thread take-up plate to rotate so as to adjust the friction resistance of a sewing thread passing through the thread adjusting and passing channel in the working process of the sewing machine.