680results about "Programme-controlled sewing machines" patented technology

A method and device for regulating the transport of material in a sewing or embroidery machine (1) that uses information from a position or movement sensor (33) located underneath the throat plate (21). The controls for the sewing machine (1) calculate deviations of the actual feeding increments of the article to be sewn from the corresponding target values from the periodically read sensor signals. With this information, the feeding increments are regulated in such a way that the deviations are cancelled out by averaging.

The invention pertains to a method of applying a stippling stitch design to an area defining an asymmetrical polygon in a coordinate planar display format, involving: defining a pathway, which may be based on a fractal design, within a geometrically symmetrical boundary, the pathway comprising a single non-intersecting line; conforming the pathway to an asymmetrical polygon area substantially disposed within the geometrically symmetrical boundary; deriving a plurality of coordinate points representative of the pathway; and passing the points to a data storage medium in a pre-determined embroidery data format.

The present invention provides alternative scroll-type yarn feed attachments for tufting machines characterized by independent servo-motor control of sets of yarn feed rolls, and a software design system to facilitate use of the attachment to produce novel patterns and photo images.

The invention provides an intelligent sewing device and system. The device comprises an industrial sewing machine for sewing cloth, a mechanical arm clamp, an industrial robot, a main controller and a sewing vision unit. The industrial robot operates the mechanical arm clamp for sewing matching. The industrial sewing machine, the mechanical arm clamp, an equipment protecting device and the industrial robot are connected through the main controller which then carries out control. The sewing vision unit is used for shooting sewing workbench images and obtaining cloth images. The system comprises a plurality of intelligent sewing devices, main controllers, exchangers, feeding controllers, loading devices, feeding devices and centralized control computers. The main controllers and the exchangers are in communication connection with the intelligent sewing devices. The feeding controllers are in communication connection to the exchangers. The loading devices are connected with the feeding controllers. The feeding devices are used for placing of cloth by the loading devices and conveying the cloth to the intelligent sewing devices. The centralized control computers are in communication connection with operation man-machine interaction platforms of the exchangers. Through the system, automatic loading, feeding and sewing are achieved, during a sewing process, the cloth can be used for locating or correcting an algorithm, sewing is accurate, and working efficiency and product yield are greatly improved.

A quilting apparatus for enabling a user to freely move a stack of fabric layers across a planar bed relative to an actuatable stitch head. The apparatus includes a motion detector which detects the movement of the stack and controls the actuation of the stitch head. Consequently, the apparatus functions to synchronize the delivery of stitch strokes by the head with the manually controlled movement of the quilt material stack. This frees the user to move the stack over a wide range of speeds, to start or stop movement at will, and to guide the stack in any direction across the planar bed.

A printing and embroidering system having a positional data appending system that is adapted to append positional data indicating positions of a first image and a second image with respect to each other to first image data representing the first image to be formed by one of printing and embroidering and second image data representing the second image to be formed by the other one of printing and embroidering, a first image forming unit with a first fabric holding member, which is adapted to form the first image based on the first image data on a fabric being held by the first fabric holding member, and a second image forming unit with a second fabric holding member, which is adapted to form the second image based on the fabric being held by the second fabric holding member, wherein the first image forming unit is provided with a mark forming system, which is adapted to form a predetermined mark represented by the positional data on the fabric, and wherein the second image forming system is provided with a misalignment eliciting system, which is adapted to elicit a misalignment between a position of the predetermined mark formed on the fabric held by the second fabric holding member and a position represented by the positional data appended to the second image data prior to forming the second image.

A method and system of remotely communicating embroidery pattern data to embroidery machines involving providing an embroidery pattern in response to a pattern selection input from a remote user at a local node, the input communicated through a communications connection between the local node and a server, receiving an identification address for an embroidery machine, communicating the embroidery pattern to the embroidery machine for application of the embroidery pattern to a work piece. The system includes a server having circuitry for receiving wireless electronic communications, a local node having a graphical user interface for receiving input from a remote user, the local node in wireless electronic communication with the server, a database of electronically encoded data, the data comprising embroidery patterns, the database in communication with the server, and responsive to the local node input, to retrieve embroidery patterns and to display the embroidery patterns through the server to the remote user, and an embroidery machine in communication with the server, the embroidery machine receiving embroidery patterns from the database through the server.

The present invention relates to sewing patterns for use in producing sewn articles whereby a sewing pattern is selected from a collection of patterns. The selected pattern can then be modified as desired and the modified pattern, together with selected fabrics and accessories, can be ordered and delivered to a desired location.

An embroidery machine includes a sewing arm having an upper shaft for providing a driving force, a needle bar support case, which is assembled to a front portion of the sewing arm so as to be laterally movable, a needle bar provided in a needle bar support case, the needle bar having a needle at a lower end thereof and vertically carrying the needle using a rotation driving force of the upper shaft, and a presser foot, which is provided in the needle bar support case so as to be vertically movable, characterized in that each of the needle bar and the presser foot is operated by an individual drive mechanism. The presser foot is separately driven by its own drive source, independent of the drive source of the needle bar.

A stitching apparatus with thread tension control is provided. Tension in a thread is monitored during stitching apparatus operations, and remedial action is taken in response to the detection of an anomaly in the thread tension profile. The remedial action can include altering a feed rate of the thread in order to adjust the thread tension, and/or repeating a previous operation. Anomaly detection can be performed with respect to stitching or sewing operations, and also with respect to trim operations performed in connection with moving between elements and/or thread color changes.

The invention provided a sewing machine, improved to automatically switch the sewing machine to the thickness of cloth. This sewing machine includes: a housing having a base plate; a top arm; and a strut for integrating the base plate with the top arm. A metallic presser presses a cloth piece near a stitch forming position. The metallic presser driven by a movable rod is capable of moving between the lift position for releasing the cloth piece and the pressing position for the cloth piece to be pressed. When the metallic presser moves between these positions, the distance of at least one movable rod part from a reference structure fixed to the housing stably changes. The position sensor detects the position of the metallic presser in the pressing position. A control system makes signal connection thereto. The system sets an adjustment variable for the sewing machine depending upon the output value of the position sensor. As a result, the obtained sewing machine automatically performs switching to the thickness of variable cloth piece.

A method and device for controlling sewing patterns of a sewing machine allows the user to edit the patterns or pattern strings saved in the database, and to mirror the patterns, or control the respective data of sewing. The sewing pattern can be easily and freely edited, and the information of all the sewing operations is clearly displayed on the display.

The invention provides a visual positioning method and system for sewing. An image of a cloth material to be sewn is obtained by shooting and processing an image of a sewing workbench, a datum point is preset on the sewing workbench, and centroid coordinates, sewing starting point coordinates and the current sewing direction of the cloth material to be sewn are obtained in the image of the cloth material to be sewn with the image of the sewing workbench as a coordinate plane; true position coordinates of the datum point in the coordinate plane are obtained with the sewing workbench as a true position coordinate plane, and the centroid coordinates and the sewing starting point coordinates in the image of the sewing workbench are converted into true position coordinates of the sewing workbench; the cloth material to be sewn is rotated to the current sewing direction parallel to the preset sewing direction with true position coordinates of the centroid as the rotating center; the moving distance between the sewing starting point and the datum point is calculated, and the cloth material to be sewn is moved to the sewing starting point corresponding to the datum point for sewing work according to the moving distance. Since visual image processing is used for positioning, the problem that existing automatic sewing is poor in positioning is well solved.

The invention provides a sewing boundary automatic sewing system and a sewing method. The system comprises a needle pitch detection mechanism, a boundary detection mechanism disposed at the preset distance from a needle hole sewed by a sewing machine needle, and a control system. The needle pitch detection mechanism and the boundary detector are connected with the control system. The control system acquires the current sewing needle pitch in real time according to the needle pitch detection mechanism, and judges whether or not the current sewing state is the terminal sewing according to signals of the boundary detector; if yes, the control system calculates the number of sewing stitches sewn to the fabric boundary with the current sewing needle pitch and performs the sewing according to the number of the sewing stitches; if not, the sewing machine sews normally. The needle pitch detection mechanism is a parameter sensor for collecting swing parameters of feeding tooth holders. According to the sewing boundary automatic sewing system and the sewing method, the automatic sewing process from the last stage to the terminal of the fabric is realized; the sewing efficiency and the sewing precision are improved; the labor cost is lowered.

Disclosed is a digital garment using embroidery technology. In the digital garment, a digital embroidery pattern is formed on a common garment to provide a communication path, an antenna pattern, etc. The digital garment comprises a garment made of a textile and having one side and the other side opposite to each other, a digital embroidery pattern formed along the inner or outer surface of the garment using embroidery technology to provide a communication path to the garment, a sensor attached to the garment and electrically connected to the digital embroidery pattern to convert physical signals to electrical signals, an arithmetic unit attached to the garment and electrically connected to the digital embroidery pattern to process the electrical signals inputted from the sensor, and a communication module attached to the garment and electrically connected to the digital embroidery pattern to perform wireless communication. Further disclosed is a method for fabricating the digital garment using embroidery technology.

A method and apparatus for stitching a workpiece, such as a quilt, is disclosed. The method comprises displaying a predetermined pattern on a display and manipulating the predetermined pattern on the display. The display includes an indicator corresponding to a position of a sewing head relative to the workpiece. The method further includes moving a control handle operably connected to the sewing head to move the indicator relative to the pattern on the display and move the sewing head relative to the workpiece. Devices to practice the method include sewing machines having a sewing head moveable relative to a workpiece and a control handle operably connected to the sewing head to move the sewing head relative to the workpiece, wherein the display showing a pattern to be sewn is mounted relative to the control handle for movement with the control handle.

The invention provides automatic sewing equipment. The automatic sewing equipment is provided with a rack, a sewing unit, a discharging unit, a sewing material separating unit, a sewing material clamping unit, a sewing material moving unit and a collecting unit. After an operating worker places a pile of cutting pieces (multiple pieces of sewing material vertically stacked) to be sewed on a cloth placing platform, subsequently a piece of sewing material on the top layer on the cloth placing platform is separated out by the sewing material separating unit, the separated sewing material is clamped by the sewing material clamping unit and transferred to a platform plate, the sewing material on the platform plate is transferred to a sewing machine by the sewing material moving unit, the sewing material is sewed by the sewing machine, and the sewed sewing material is supported by the collecting unit, so that full automatic sewing is achieved, it is only necessary for the operating worker to place a pile of cutting pieces on the cloth placing platform, the labor cost and the manpower cost are greatly reduced, it is effectively ensured that a sewing workshop of a clothing factory is clean and orderly, and the requirements of modern production are met.

A method for allowing a user to make a tailored garment (M) comprises the following steps: preparing at least one image (I) comprising a sample garment (C) of the same type as the tailored garment (M) t_o be made and also comprising a reference object (O) with actual standardized dimensions (M/,M8); measuring on the at least one image (I) the dimensions of the reference object (O) and a set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C); calculating the actual dimensional values of the set of basic dimensions of the sample garment (C) as a function of: the dimensional values of the set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C) measured on the image (I), the dimensional values of the reference object (O) and the actual dimensions (M7,M8) of the reference object (O); selecting the aesthetic features of the tailored garment (M) to be made; transmitting to a tailoring apparatus (4) the calculated actual dimensional values of the set of basic dimensions of the sample garment (C) and the selected aesthetic features; performing on the tailoring apparatus (4) a sequence of operations of cutting and sewing the tailored garment (M), to make the tailored garment (M) so its basic dimensions are substantially equal to the previously calculated actual dimensional values of the set of basic dimensions of the sample garment (C).

This invention concerns automatically generating embroidery stitch patterns in a computer aided design system where areas defined by vector outline shapes are filled with stitches which follow curved lines rather than straight lines. This is done in a way to maintain consistent densities and consistent needle penetration patterns inside the areas. The shapes of the areas may be simple polygons which can be filled in one contiguous segment of curved stitching, or they may be complex or multi-boundary shapes which must be stitched in more than one distinct segments of curved line stitching. The areas are transformed into another coordinate space where known calculation methods for straight line stitching are used to calculate straight line fills of the transformed area. The resulting area and stitches are then transformed back to the original coordinates, resulting in even stitching along smooth curves which fills the original area such that the intermediate stitch penetration points along the curves form a smooth continuous visual pattern throughout the area.

The invention provides a computer control system for industrial sewing machines, comprising a computer control cell containing an industrial control computer, a motion control card and an output interface card, a servo driving cell containing AC servo motor or step motor, a man-machine interface cell containing color liquid crystal display with touch screen performance, and a power supply cell for system containing switching power supply, transformer and rectifying plate. The invention adopts the module cell structure. The inside of each cell is relatively independent, self-contained and high integrated degree. It can configure relative parts flexibly to constitute the system according to the difference of host of industrial sewing machine. By the system software program, sewing every designs, lines or schemes automatically in high speed is accomplished. It is provided with convenient operation, simple plate-marking program, improved speed and low labor intensity.

A sewing machine capable of sewing while a workpiece cloth is moved by a manual operation includes a needlebar having a lower end to which a sewing needle is attached, a needlebar driving mechanism vertically driving the needlebar via a main shaft, a presser foot pressing the workpiece cloth, an imaging device imaging at least an area of the workpiece cloth near to the sewing needle, a movement amount operating device obtaining by operation a movement amount of the workpiece cloth based on image data supplied from the imaging device, a setting device setting a stitch pitch on the workpiece cloth, a comparing device comparing the obtained movement amount of the workpiece cloth and the set stitch pitch, a cloth movement limiter limiting movement of the workpiece cloth by the manual operation, and a control device controlling the cloth movement limiter according to a result of comparison.

The invention provided a sewing machine for improving the efficiency of sewing work and quickening it. The sewing machine is provided with a needle driving means 30, a cloth pressing means 40, a moving means 50 for positioning a sewing needle 11 to cloth, an input means 20 for inputting the setting relating to sewing, a storage means 103 for respectively storing sewing data and successive sewing data composed of two or more pieces of the sewing data, and an operation control means 100 for controlling respective parts on the basis of the respective stored sewing data. The order of sewing is specified for two or more pieces of sewing data and is inputted by the input means 20 and the storage means 103 stores it. The operation control means 100 makes the sewing of the sewing data or the successive sewing data be successively performed according to the stored order and waits for the detection of re-pressing by the cloth pressing means every time sewing is performed for the respective successive sewing data or sewing data for which the order is specified.

The invention discloses a sewing feeding device and method and a sewing device. The sewing feeding device comprises a bench, a bypass mechanism, a suction mechanism, a compressing mechanism, a transmission mechanism and a drive mechanism, wherein the mechanisms are disposed on the bench. The bypass mechanism is adjacent to the suction mechanism. The compressing mechanism is slidably connected to the transmission mechanism; a projection of the compressing mechanism on the bench at least partly overlaps with the bypass mechanism or an extension of the bypass mechanism. The drive mechanism is connected with the compressing mechanism. After placed, a cut panel is automatically fed below a needle of a sewing machine and sewed, with no need for manual operations; labor is reduced, and labor cost is reduced. Through the application of the sewing device, production efficiency can be improved.

A stitcher is provided that includes a needle configured to place stitches in a fabric that is moved therethrough. The stitcher includes a sensor positioned below the fabric to monitor stitches placed in the fabric. A microcontroller is provided configured to receive data from the sensor and, based on such data, to compare one or more attributes of the monitored stitches with one or more predetermined parameters relating at least one attribute of the fabric. The predetermined parameter may be either hardcoded inn the microcontroller or input by a user of the stitcher prior to beginning operation of the machine. When the attributes of the monitored stitches fall outside of the predetermined parameters, the microcontroller initiates notification of the user.

The invention provides an automatic sewing system for a cuff opening and a method. The automatic sewing system for the cuff opening comprises a rack, a sewing panel, a main beam which is arranged corresponding to one surface of the sewing panel, a sewing shuttle support beam which is arranged corresponding to another surface of the sewing panel, a main plaiting device installed on the sewing panel, an auxiliary plaiting device installed on the main beam, a sewing head installed on the main beam, a sewing shuttle installed on the sewing shuttle support beam, a cloth feeding device and a power supply cabinet. A sewing area is arranged on the sewing panel. The sewing shuttle and the sewing head correspond to the sewing area. According to the automatic sewing system for the cuff opening and the method, the cloth strips of the cuff opening can be folded, pressed and sewn, so that sewing operators are reduced, no worker is needed to watch over, and the sewing efficiency and accuracy are improved greatly; the automatic sewing system for the cuff opening and the method have the advantages of being convenient to use and low in maintenance cost.

The invention provides a method for controlling an electronic pattern making machine for realizing uniform discretization of patterns, aiming to solve the problems of running instability and pattern distortion caused by nonuniform discretization of patterns of the electronic pattern making machine in the prior art. According to the method, a plurality of straight line segments, circular arcs, circles and free curves for forming the patterns are discretized uniformly, the obtained relative coordinates of the pattern points indicate the relative running vector of a needle of a sewing machine on the frame of the sewing machine, the integrated pattern data files are stored in the electric control system of the electronic pattern making machine, the pattern data files selected by the user are read by the electric control system, and the pattern data are analyzed reversely to control an X-axis stepping motor and a Y-axis stepping motor to operate together with a servo motor.

The disclosed apparatus and program stored on a computer readable medium for processing embroidery data make stitch data subdivisions into which the stitch data was divided, according to the size of partitions, and add partition position information corresponding to the position of stitch data subdivision in the stitch data to the stitch data subdivisions. If the size of an embroidery pattern which is embroidered by the embroidery data is greater than a predetermined workable area of sewing within the embroidery frame, the embroidery data is divided into subdivisions and where the embroidery data subdivisions is positioned in the whole embroidery design can be identified.

This invention comprises a means to control stitch length of household sewing machines when used on free-motion quilting frames. A sensor in the form of a computer mouse or a pair of sensors in the form of optical encoders is used to determine the translational speed of the set of carriages that hold the sewing machine. This information is sent to electronic circuitry that converts this information to an electrical resistance which is applied to the foot pedal control electrical connector on the sewing machine. When thusly applied, this resistance sets the rotational speed of the sewing machine. This invention achieves stitch length uniformity by maintaining the proper relationship between the input signal from the sensor or sensors caused by carriage translation and the output resistance to the sewing machine which controls its rotational speed.

To achieve the efficiency in the sewing work in a sewing machine having a thread cutting mechanism, a presser lifter mechanism and a thread sweeping mechanism by checking the operation of the presser lifter mechanism as required while preventing the delay in the cycle time simplifying the mechanisms and the controls. The sewing machine has the thread cutting mechanism 10, the presser lifter mechanism 30, the thread sweeping mechanism 50 and a drive means for driving the mechanisms is provided with the first cam 61 which has a thread cutting operation part for converting rotary driving forces of a single pulse motor 80 as the drive means to those to match the thread cutting mechanism 10 and the second cam 62 which has a thread sweeping operation part and a presser lifting operation part for converting rotary driving forces of the pulse motor 80 to those to match the thread sweeping mechanism and the presser lifter mechanism. The first cam and the second cam are arranged in such a phase difference as to operate the thread cutting mechanism, the thread sweeping mechanism and the presser lifter mechanism sequentially with the rotation of the pulse motor.

A quilting machine has at least one needle and looper set for forming chain-stitched patterns on a thick multilayered material such as a mattress ticking, preferably a panel of the continuous web clamped stationary on a frame. The stitch forming elements are mounted on separate heads that move independently transversely relative to the panel on a bridge that moves longitudinally relative to the panel. The bridge is longitudinally moved by a servo and the heads are transversely moved on the bridge by separate linear servos. The needle and looper are each driven by a linear servo having an armature to which the element is directly fixed to reciprocate without intervening mechanical linkage assemblies. A controller drives the servos to chain-stitch patterns, differentially move the heads transversely to account for transverse needle deflection and to phase the needle and looper to compensate for longitudinal needle deflection. The controller determines or predicts needle deflection, either based on stored empirically determined data or optical sensing, and generates deflection compensation signals to drive the servos.