531results about "Sewing-machine control devices" patented technology

The invention provides a cloth stem-crossing detection sewing device and method. The cloth stem-crossing detection sewing device comprises a first presser foot rod provided with an outer presser foot, a second presser foot rod provided with an inner presser foot, a presser foot transmission mechanism, a control module, a sewing material thickness detection sensor, an alternating quantity adjusting mechanism, an alternating quantity detection sensor and an alternating quantity adjusting driving source. The sewing material thickness detection sensor is obliquely mounted at the bottom of the sewing machine shell; detection points, falling on the sewing material, of the sewing material thickness detection sensor are distributed on the rear sides of the outer presser foot and the inner presser foot in the feeding direction of forward feeding during forward sewing of the sewing machine; the presser foot transmission mechanism is provided with a transmission swing seat for determining the alternating quantity of presser feet, and the alternating quantity adjusting driving source is connected with the transmission swing seat through the alternating quantity adjusting mechanism. The sewing material thickness is effectively detected in advance, so that the presser foot alternation amount is adjusted in time, the presser foot alternation amount of the sewing machine adapts to the change of the sewing material thickness, efficiency is improved, stem-crossing stitches are beautified, and sewing quality is guaranteed.

The invention relates to a thread trimming control method, a thread trimming control system and a sewing machine, the thread trimming control method comprises the following steps: arranging a first sensor, a second sensor and a third sensor which are arranged in sequence, the distance between the first sensor, the second sensor and the third sensor is L1, and the distance between the second sensor and the third sensor is L2; when the fabric reaches the second sensor from the first sensor, the controller calculates that the current stitch length of the sewing machine is O1 = L1 / N, and N is the number of turns of rotation of the sewing machine; the controller calculates the number of turns of rotation required by the sewing machine within the distance of L2, M = L2 / O1 = m + n, and m is an integer, 0 lt; nlt; 1; when ngt; k, when the fabric passes through the second sensor, the controller adjusts the stitch length of the sewing machine through the execution motor and the stitch length adjusting mechanism, so that the adjusted stitch length O2 meets the condition that L2 / O2 = x + y, and x is an integer, 0 lt; yt; Yt; 1, y < = k, 0.4 < = k < = 0.6; when n is smaller than or equal to k, the sewing machine continues sewing according to the stitch length of O1. According to the thread trimming control method, the thread trimming control system and the sewing machine, the problem that under the existing large-stitch-length sewing working condition, cloth and thread residues are very prone to being scattered is solved.

A sewing machine external unit includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a pressing member moving in an up-down direction according to movement of a sewing needle in the up-down direction, pressing the fabric while the sewing needle is stuck in the fabric, and rising together with the sewing needle in response to the sewing needle coming out of the fabric and rising; a position detector detecting a position of the pressing member in the up-down direction; a signal output part outputting a signal to the sewing machine; and a controller outputting a needle drive signal for driving the sewing needle from the signal output part to the sewing machine, and controlling driving of the holder and / or the sewing needle based on a detection result of the position detector.

The cloth pressing device for the patch pocket machine is composed of an inner cloth pressing structure and an outer cloth pressing structure, the inner cloth pressing structure comprises an inner cloth pressing driving component and an inner pressing block component, and the outer cloth pressing structure is composed of a bottom frame and three or more outer cloth pressing modules fixed to the bottom frame. In the outer cloth pressing structure part, three or more outer cloth pressing modules can be selected according to the shape of pocket cloth, and a motor can be started to control the extending distance of outer pressing blocks in the outer cloth pressing modules according to the size of pocket cloth pieces. According to the inner cloth pressing structure part, the shapes of the outer pressing blocks can be selectively replaced according to the shapes of the pocket cloth pieces, and the number of the outer pressing blocks can be adjusted according to the sizes of the pocket cloth pieces. Different cloth pressing modules do not need to be manufactured according to different cloth piece shapes and sizes, the structure is simple, operation is convenient, and large-scale production is easy to achieve.

The utility model discloses a braid splicing device which comprises a supporting seat, a first transmission column, a second transmission column, a limiting portion, a sewing machine, a power component and a controller, the first transmission column and the second transmission column are arranged on the supporting seat, and the position of the first transmission column and / or the second transmission column relative to the supporting seat can be adjusted. The first transmission column and / or the second transmission column are / is connected with the power component, the controller is electrically connected to the power component and the sewing machine, when the braid is wound around the first transmission column and the second transmission column, the braid is located on the inner side of the limiting part, the limiting part is used for abutting against the braid to enable the braid to move towards the inner side, and the controller can control the power component to operate. The first transmission column and / or the second transmission column are / is driven to rotate, the sewing machine is synchronously controlled to operate, and adjacent braids can be spliced. According to the device for splicing the ribbon and other strip-shaped objects, manpower and material resources are saved, large carpets / ground mats can be formed, and application and popularization are facilitated.

The utility model discloses an anti-nest thread bonding device and a sewing machine in the technical field of sewing machines. The anti-nest thread bonding device comprises an auxiliary thread trapper. The connecting end of the wire bonding plate is connected with the auxiliary wire clamping device, and the wire bonding end of the wire bonding plate and the auxiliary wire clamping device can rotate relative to each other; the wire bonding driving assembly is arranged on one side of the auxiliary wire clamping device, and the wire bonding driving assembly is provided with a wire bonding iron core shaft capable of axially moving in a reciprocating mode; the connecting rod is arranged between the wire bonding plate and the wire bonding driving assembly, one end of the connecting rod is hinged to the wire bonding iron core shaft, and the other end of the connecting rod is hinged to the wire bonding plate, so that the wire bonding end of the wire bonding plate is driven to swing through axial movement of the wire bonding iron core shaft. The thread bonding mechanism not only realizes the thread bonding action and prevents the generation of bird nests, but also has the advantage of simple structure, simultaneously avoids the problem that the hand is blocked by the operation space of the machine head, and enables the sewing machine to have a neat appearance.

The utility model relates to the technical field of sewing equipment, in particular to an improved thread trimming mechanism of a sewing machine, which comprises a thread trimming structure, and the thread trimming structure comprises a movable cutter unit and a fixed cutter matched with the movable cutter unit for use; the movable cutter unit comprises a driving part, an annular supporting seat, a mounting part integrally formed with the annular supporting seat and a cutter, the cutter is mounted on the mounting part through a fastener, a first blade part is arranged on the cutter, and a second blade part meshed with the first blade part is arranged on the fixed cutter; the driving piece drives the annular supporting base to rotate so as to drive the first blade part of the cutter to approach the second blade part of the fixed cutter to cut off the thread residues. According to the thread trimming structure, the complex structure of a traditional thread trimming mechanism is simplified, and the manufacturing and maintenance cost is reduced. Meanwhile, the conveying mechanism is composed of a first gear, a second gear and a conveying belt, belt conveying transmits power through friction or synchronous gear meshing, instant impact force can be effectively reduced, and the problems of vibration and noise caused by rigid transmission are solved.

The present application particularly relates to a sewing machine for realizing intermittent cloth feeding operation, comprising a cloth feeding assembly and an intermittent driving assembly. The cloth feeding assembly comprises a cloth feeding wheel and a transmission rod connected to the cloth feeding wheel. The intermittent driving assembly comprises a driving body, a planetary gear assembly connected to the driving body and driving the transmission rod based on the driving body. The driving body has an axis, an eccentric wheel arranged at the axis, and an output connected to the eccentric wheel and the planetary gear assembly. The eccentric wheel is shaped with a plurality of first teeth at the outer edge. The output is shaped with a plurality of second teeth matched with the first teeth. The eccentric wheel performs an elliptical motion relative to the output after being driven by the axis. The output outputs kinetic energy to the planetary gear assembly only when the first teeth engage the second teeth.

The invention belongs to the technical field of automatic cutting bed machines, and particularly relates to a process for sewing internal parts of an automatic cutting bed machine, which comprises the following steps: a part positioning and pretreatment step, a sewing line planning step, a sewing equipment adjustment step, a sewing execution step and a quality detection and repair step. The sewing precision can be improved, and the stability of product quality is guaranteed; the sewing efficiency is remarkably improved, the production cycle is shortened, and the large-scale production requirement is met; meanwhile, the sewing machine is suitable for sewing internal parts made of various materials, and especially the sewing effect on special materials can be improved.

The invention relates to a sewing machine and a cloth pricking stroke adjusting device thereof. The cloth pricking stroke adjusting device comprises a driving mechanism, and an output shaft of the driving mechanism rotates to drive a presser foot lifting cam and an adjusting crank to rotate to a working position; the working positions comprise at least one adjusting position of the presser foot lifting cam and at least one adjusting position of the adjusting crank; the adjusting position of the presser foot lifting cam corresponds to the upper limit position and the lower limit position of the foot lifting module; the adjusting crank is hinged to the adjusting connecting rod, the adjusting position of the adjusting crank corresponds to the target angle of the adjusting crank, and the driving mechanism drives the adjusting crank to swing to the target angle, so that the position of the fixed end of the adjusting connecting rod changes along with the target angle of the adjusting crank. By adjusting the position target of the fixed end of the connecting rod, the target cloth puncturing stroke is correspondingly adjusted, the cloth puncturing stroke adjusting device is applied to the sewing machine, and the sewing machine with the cloth puncturing stroke adjusting function is obtained.

The utility model discloses a computer back hook machine of quick start -stop, relates to back hook machine field, including stable conveying frame, the inside installation of stable conveying frame's opening place sliding limit mouth, the left and right sides of sliding limit mouth are equipped with the transmission elastic mechanism that carries out the rotation of transmission bite link, transmission elastic mechanism includes rotary drive motor, and rotary drive motor fixed mounting is in the side of stable conveying frame. This computer back hook machine of quick start -stop, when needing to carry out quick conveying start -stop operation to cloth, directly starts rotary drive motor and drives left and right two groups transmission bite link through the connection transmission belt, cloth will be driven along stable conveying frame and be driven stably, and rotary drive motor can make the equipment automatic start -stop through the position of detection anti -run -off bending plate, and the design of such delivery stability improves, and when producing deviation, can carry out the stop operation quickly, make the use intelligent nature and stability of equipment improve.

The utility model discloses a top fly machine, which relates to the technical field of sewing machines and comprises a workbench provided with a top fly processing area for placing cloth. The sewing mechanism comprises a machine head and an X-direction driving assembly, and the X-direction driving assembly is used for driving the machine head to slide in the X direction; the cutting mechanism is arranged above the front fly machining area and comprises a first cutting driving assembly, a second cutting driving assembly, a linear cutting knife and an angle knife, the first cutting driving assembly is used for driving the linear cutting knife to vertically ascend and descend, and the second cutting driving assembly is used for driving the angle knife to vertically ascend and descend; the presser foot mechanism can be pressed down above the cloth in the front fly processing area to drag the cloth to walk in the Y direction. According to the utility model, a single sewing needle can be adopted to sew on cloth according to a U-shaped track, the cost of a machine head is reduced, a Y-shaped kerf can be processed, and the production requirement is met.

The utility model discloses a positioning and pushing mechanism for a garment sewing machine, which comprises a base, a pushing assembly arranged on the outer surface of the upper side of the base, a positioning assembly arranged on the inner side of the pushing assembly, the positioning assembly comprises a mounting seat, a sliding block fixedly mounted at the bottom of the center of the mounting seat, and a motor I fixedly mounted on the outer surface of one side of the mounting seat. A first motor is arranged on the outer surface of the sewing seat, a positive and negative worm is fixedly mounted at the output end of the first motor, a worm gear frame is meshed with the outer surface of the positive and negative worm, and a rubber strip is fixedly mounted on the outer wall of the upper side of the worm gear frame. The positive worm and the negative worm rotate to drive the two worm wheel frames to rotate, so that the adhesive tape is pressed on the outer surface of the upper side of the garment fabric, by means of the structure, the fabric is positioned and pressed, the positioning accuracy of the fabric is guaranteed, meanwhile, the positioning danger is reduced, and therefore the sewing quality and efficiency of the sewing machine are improved.

The utility model provides a cantilever quick hand, including work table surface, be located cantilever on work table surface, cantilever one end is connected in work table surface place, and the other end is suspended and is set on work table surface upside, with the end of cantilever and work table surface between having the space for avoidance, cantilever side rotation is provided with first arm, and first arm end part lift is provided with work rod, first arm is used for driving work rod in the space for avoidance work, the utility model discloses can not occupy the additional equipment area while increasing processing range, and can control work position accurately at the arbitrary position of processing range.

The utility model provides a flat cutter thread trimming mechanism of a sewing machine and belongs to the technical field of sewing machines. The problem that an existing flat cutter thread trimming device is high in maintenance cost is solved. The flat cutter thread trimming mechanism of the sewing machine comprises a fixing frame, a rotating shaft vertically arranged on the fixing frame in a penetrating mode, a fixed cutter horizontally fixed to the fixing frame, a movable cutter connected to the fixing frame in a horizontal swinging mode and a movable handle arranged outside the rotating shaft in a sleeving mode and capable of rotating around the axis of the rotating shaft. The flat cutter thread trimming mechanism of the sewing machine further comprises a driving motor, a long-strip-shaped swing rod and a long-strip-shaped driving rod, an output shaft of the driving motor is vertically arranged, the swing rod and the driving rod are horizontally arranged, one end of the swing rod is fixed to the output shaft, and the other end of the swing rod is hinged to one end of the driving rod. And the other end of the driving rod is hinged with the other end of the movable handle. The flat cutter thread trimming mechanism of the sewing machine has the advantage of low maintenance cost.

The invention discloses an automatic thread-trimming and thread-loosening-preventing mechanism for a sewing machine, which adopts an integrated structure that a cam is driven by a single motor, adopts a single power source to synchronously control thread-trimming and thread-clamping actions, replaces a traditional electromagnet system and has a sewing-starting and thread-loosening-preventing function. In the invention, the thread loosening end and the presser foot lifting end of the cam are independently designed in a layered manner, so that compact integration of mechanical transmission is realized, the size of a machine head is obviously reduced, and after an electromagnet control scheme is replaced, the defects of high noise, easiness in heating and the like can be overcome; in addition, a thread clamping action is supplemented for a conventional sewing process, the motor controls the thread clamping assembly to clamp a free-state thread end after the thread cutting action is completed, it is ensured that the next sewing starting action can accurately complete the thread hooking action, and the phenomena of thread loosening and thread flying are prevented.

The invention provides a lower thread cutting device of a flat chain seam sewing machine. According to the utility model, the problem that the operator is difficult to understand and inconvenient due to the difference that whether the tension applied to the thread by the thread trapper can be released or not by operating the pedal and operating the presser foot lifting rod due to the presence or absence of the lower thread cutting device can be solved. The lower thread cutting device is provided with a lower thread cutting operation mechanism (5) which enables the thread loosening mechanism (4) and the lower thread cutting mechanism (3) to operate, and a presser foot lifting operation mechanism (6) which does not enable the lower thread cutting mechanism (3) to operate and enables the thread loosening mechanism (4) and the presser foot lifting mechanism (2) to operate. Therefore, the force of the thread trapper (11) can be released by operating the pedal plate with a foot regardless of the presence or absence of the off-line cutting device.

This invention relates to the field of pillowcase production line technology, specifically a novel pillowcase production line, comprising a feeding module, an edge-rolling and sewing module, a fabric cutting module, a side-sewing and sewing module, a bottom-sewing and sewing module, and a pocket-turning and material-collecting module arranged sequentially along the material flow direction. The feeding module provides and conveys continuous pillowcase fabric; the edge-rolling and sewing module automatically rolls and sews one edge of the pillowcase fabric. This invention significantly improves production efficiency and capacity: by integrating seven major processes—feeding, edge rolling, cutting, side sewing, bottom sewing, pocket turning, and material collection—into a continuous production line, it achieves fully automated production from roll material to finished product. In particular, designs such as "non-stop fabric connection," "buffer roller module," and "accelerated inter-process transfer" greatly reduce non-productive downtime, significantly accelerating the overall production cycle and fundamentally improving capacity.

To improve visibility or operability in a display input part.SOLUTION: A sewing device includes: a display input part 80 having a display part 81 for displaying an image of an input screen G1, and an input detection part 82 for detecting an input operation with respect to the input screen G1; and a control device 90 for performing display control of the display part 81 according to the input operation. The control device 90 performs display control in which the background of the input screen G1 is dark color as a whole, a sewing pattern image displayed in the input screen G1 has brightness higher than the background, and operation parts B11-B53 for receiving the input operation in the input screen G1 is lighter color than the background.SELECTED DRAWING: Figure 4

The utility model provides an electric control panel of a sewing machine, and belongs to the technical field of sewing equipment. The sewing machine comprises a machine shell, the electric control panel comprises a plate body, a mounting groove is formed in the machine shell, a connecting plate is mounted in the mounting groove, a plurality of movable reset columns are arranged on the connecting plate, a plurality of second positioning holes are formed in the plate body, the reset columns are inserted into the corresponding second positioning holes respectively, and mechanical keys are arranged on the second positioning holes. The electronic control panel adopts mechanical keys, other keys are not affected when a single key is damaged, only corresponding keys need to be replaced independently, maintenance is convenient, and cost is low.

The utility model discloses an electronic wrench which comprises a shell, the shell comprises a base and a cover body, the base is provided with a mounting hole, the cover body is arranged at the joint of the cover body and the mounting hole and is provided with a through groove, the base is provided with a PCB, the PCB is provided with a Hall sensor, the side, arranged on the PCB, of the base is provided with a bearing, and the bearing is sleeved with a pressing wrench. According to the structure, the electronic wrench assembly and the machine head of the sewing machine are installed, the structure is simple, operation is convenient, installation personnel can conveniently conduct installation and disassembly, meanwhile, parts are arranged in the shell through the structure, and therefore the parts are protected, and the overall service life is prolonged.

The utility model discloses a universal auxiliary feeding device for thin and thick materials and a sewing machine, relates to the technical field of sewing machines, and aims to solve the problem that an existing auxiliary feeding device is not high in applicability. The one-way clutch driving assembly comprises a one-way clutch driving star wheel shaft and a driven shaft, one end of the one-way clutch driving star wheel shaft is connected with a driving gear through a bearing and a bearing cover, a driven gear in meshing transmission with the driving gear is arranged on the driven shaft, and the tooth number of the driving gear is smaller than that of the driven gear. The two ends of the one-way clutch driving star wheel shaft and the two ends of the driven shaft are installed on the bearing installation bases, the bearing installation bases are fixed to the installation support, and the belt dragging wheel assembly is connected with the driven shaft, so that large cloth feeding force can be achieved for sewing of thin materials and thick materials, and the purpose that the thin materials and the thick materials are universal is achieved.

The present application effectively utilizes the operation information of a sewing machine. The operation information obtaining device includes: a storage portion, configured to store pattern information associating detection information and a sewing pattern of a sewing machine, where the detection information is configured to identify an action of a sewing needle of the sewing machine, and the sewing pattern corresponds to the detection information; an estimation portion, configured to estimate the sewing pattern of the sewing machine based on the pattern information and the detection information of the sewing needle detected by a detection device; and an obtaining portion, configured to obtain operation information of the sewing machine having the estimated sewing pattern.

A position estimation method according to one aspect of the present invention comprises: a learning step for acquiring, on the basis of input sensor signals, training data required to estimate the rotational position of a rotor; and a position estimation step for estimating the rotational position of the rotor on the basis of the input sensor signals and the training data. By performing the learning step, data indicating the correspondence between a segment number associated with a segment included in each of a plurality of quadrants and a pole pair number representing a pole pair position is acquired as training data. By performing the position estimation step, the initial position of the rotor is determined on the basis of the input sensor signals and the training data.

The present application belongs to the technical field of sewing machine, and particularly relates to a sewing machine and a lifting tooth mechanism, which comprises a first lifting tooth crank, a first connecting rod, one end of which is hinged to the first lifting tooth crank, and the other end of which is a moving end, the moving end moving along a set moving track, an endpoint one arranged at one end of the moving track, a transformation point arranged at the middle of the moving track, and an endpoint two arranged at the other end of the moving track, the first lifting tooth crank swinging to a limit position one in a first direction when the moving end moves to the endpoint one, the first lifting tooth crank swinging to a limit position two in a second direction when the moving end moves to the transformation point, and the first lifting tooth crank swinging to a limit position three in the first direction when the moving end moves to the endpoint two, the motor shaft rotating to form a continuous change of the teeth from high to low or from low to high in several sections, so that the lifting tooth mechanism and other mechanisms can share one driving source, thereby realizing the simplification of the transmission system.

The utility model discloses a sewing machine trimming device for school uniform production, which comprises a base, a sewing machine main body is fixedly connected to the rear part of the top of the base, a limiting chute is arranged on the surface of the base close to the edge of the side surface, a micro motor is arranged in the limiting chute, a screw rod is arranged at the end part of the micro motor, and the screw rod is connected with the sewing machine main body. A guide block is arranged outside the lead screw in a sleeving manner, pneumatic scissors are movably mounted at the top of the guide block, extension plates are fixedly connected to the two sides of the pneumatic scissors, positioning holes are formed in the surfaces of the extension plates and the guide block, and positioning pins are inserted into the positioning holes. The pneumatic scissors are installed on the guide block, the guide block moves on the base in the horizontal direction under the action that the micro motor drives the lead screw, the use position of the pneumatic scissors can be adjusted, threads at different positions can be cut off conveniently, the pneumatic scissors and the guide block are connected through the positioning pin, and disassembly and assembly are easy and convenient.

The utility model relates to a kind of sewing machine cloth feeding transmission structure, including the drive shaft that is rotated by motor drive and is installed in sewing machine, drive shaft left side output end is connected with the intermittent transmission mechanism that is relatively arranged on drive shaft and is driven by drive shaft and is connected out of sewing machine, intermittent transmission mechanism is drivingly connected with output shaft, drive shaft is driven output shaft to carry out intermittent rotation by intermittent transmission mechanism, output shaft front end is spaced apart and is provided with the cloth feeding shaft that is rotated by the transmission structure being set outside sewing machine, cloth feeding shaft is installed with the cloth feeding wheel that is used to forwardly convey cloth and contact with cloth, intermittent transmission mechanism and transmission structure are relatively arranged in the outside of sewing machine, to avoid intermittent transmission mechanism occupies larger installation space in sewing machine and facilitate the installation and maintenance of intermittent transmission mechanism, at the same time, intermittent transmission mechanism is relatively arranged on drive shaft, so that the transmission of intermittent transmission mechanism is stable.

The invention relates to the technical field of driving machine heads, and discloses a double-cam single-driving machine head which comprises a main shaft, the main shaft is rotationally connected to the inner side of a shell, a first rotating ring is fixedly connected to the outer wall of the main shaft, a sleeve shaft is fixedly connected to the rear end of the main shaft, and a second rotating ring is rotationally connected to the outer wall of the sleeve shaft; a pause ring is fixedly connected to the front end of the sleeve shaft, a ring groove is formed in the front side of the pause ring, a first rotating rod is rotationally connected to the inner side of the shell, a first connecting rod is fixedly connected to the outer wall of the first rotating rod, and a cylinder is rotationally connected to the other end of the first connecting rod. The main shaft rotates to drive the first rotating ring and the sleeve shaft to rotate synchronously, the second rotating ring drives the pause ring to rotate accordingly, the cylinder slides in the ring groove, and when the ring groove rotates to the top, the cylinder is pushed to drive the first connecting rod to swing upwards around the first rotating rod, so that the pause ring is decelerated, stable deceleration of equipment when the equipment runs to a preset position is achieved, and high-speed collision of components is avoided; and mechanical loss and operation noise are reduced.

The utility model relates to the technical field of buttonholing machine, especially is buttonholing machine for clothing processing, including buttonholing machine main part, the side of buttonholing machine main part is established with the slide groove, the inside of slide groove is rotated and is connected with the lead screw through bearing, the outer surface screw thread connection of lead screw has the lifting plate, the utility model has the advantages that: the rotating stand on U -shaped support connects transparent plate, when pulling plate pulls toothed plate and overcomes the elastic force of spring and moves up, toothed plate and arc gear cover disengage meshing, and rotating stand can rotate around connecting rod, and transparent plate is rotated to needle head work area front and forms the protective barrier, after loosening pulling plate, spring pushes toothed plate and resets, and with arc gear cover meshing fixes the position of rotating stand and transparent plate. In this way, even if needle head breaks under the working condition such as puncturing thick material, transparent plate can effectively block the high-speed burst of broken needle head, avoid its to operating personnel cause harm, significantly improved the security in the use of buttonholing machine.