1605results 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.

An optical stitch regulator system for efficiently regulating the stitch length and stitch frequency of a sewing machine. The optical stitch regulator system includes at least one optical sensor within or external of the sewing platform of a sewing machine for sensing the motion of the fabric being sewn. The motion data is communicated to a control unit which communicates with the sewing machine for controlling the stitch length and frequency.

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.

A print/embroidery data creating device is provided with a usable color designating system, an output information setting system, a pixel examining system, an area setting system that sets a pixel area determined to correspond to the usable color as a usable color area and sets an area which does not correspond to the usable color area as a print area, an embroidery data creating system. The usable color area is output with the size set by the output information setting system at the position set by the output information setting system by the embroidering machine, and a print data creating system that creates print data such that a pixel area set as the print area by the area setting system is output as printed area with a color corresponding to the pixel color, the print area being output with the size set by the output information setting system at the position set by the output information setting system by the printer.

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.

A device for coloring a thread body includes a thread-feeding unit adapted for feeding the thread body at a predetermined speed such that the thread body is transported along a feeding path. A coloring unit is disposed fixedly adjacent to the feeding path, and is operable so as to spray a coloring material onto the thread body. A control unit is connected electrically to the coloring unit, and is operable so as to control the coloring unit to spray the coloring material, which has a desired one of a plurality of different colors.