The invention relates to a quilting machine for fabrics, including at least three pairs of drive rollers between which the fabric can pass, one pair of rollers being the master pair and the other pairs of rollers being the slave pairs, generating a sewing area and a post-sewing area. Each pair of rollers consists of two opposing rollers associated with a set of chains and sprockets allowing the rollers to rotate in opposite directions to one another. The machine also includes pneumatic cylinders, associated with the pairs of drive rollers, for varying the distance between paired rollers, stabiliser bars for maintaining paired rollers parallel to one another, a sewing head, and a controller for controlling all of the pairs of drive rollers and the sewing head independently, exerting tension on the fabric in the sewing and post-sewing areas.

The invention relates to a quilting machine for fabrics, including at least three pairs of drive rollers between which the fabric can pass, one pair of rollers being the master pair and the other pairs of rollers being the slave pairs, generating a sewing area and a post-sewing area. Each pair of rollers consists of two opposing rollers associated with a set of chains and sprockets allowing the rollers to rotate in opposite directions to one another. The machine also includes pneumatic cylinders, associated with the pairs of drive rollers, for varying the distance between paired rollers, stabiliser bars for maintaining paired rollers parallel to one another, a sewing head, and a controller for controlling all of the pairs of drive rollers and the sewing head independently, exerting tension on the fabric in the sewing and post-sewing areas.

A sewing machine determines a pattern from multiple patterns, as a first pattern. The sewing machine generates a projection image including a first image representing a sewing image of the first pattern in a sewing expected size thereof. The sewing machine projects the generated projection image onto a projection area. The sewing machine sews the first pattern on a workpiece in the sewing expected size based on pattern data for the first pattern.

The sewing machine includes a projector and a controller. The controller determines a sewing area inside an embroidery hoop such that the sewing area is greater than a projection area where the projector projects a projection image. The controller determines an embroidery pattern and a position of the embroidery pattern located relative to the sewing area. The controller determines, in the sewing area, a target area corresponding to the projection area. The controller generates projection image data representing a part or a whole, which falls in the target area, of the embroidery patter relative to the sewing area, and controls the projector to project a projection image based on the projection image data after moving the embroidery hoop.

The sewing machine includes a projector and a controller. The controller determines a sewing area inside an embroidery hoop such that the sewing area is greater than a projection area where the projector projects a projection image. The controller determines an embroidery pattern and a position of the embroidery pattern located relative to the sewing area. The controller determines, in the sewing area, a target area corresponding to the projection area. The controller generates projection image data representing a part or a whole, which falls in the target area, of the embroidery patter relative to the sewing area, and controls the projector to project a projection image based on the projection image data after moving the embroidery hoop.

A sewing machine translates a stitchwork frame with which a cloth is fastened along a direction of a plane where the cloth is fastened based on stitchwork data to form a stitchwork pattern. A presser foot located above the cloth has a height changed by an actuator like a stepping motor in accordance with the advancement of a stitchwork formation. Hence, a predetermined clearance between the cloth and the presser foot is maintained.

A sewing machine translates a stitchwork frame with which a cloth is fastened along a direction of a plane where the cloth is fastened based on stitchwork data to form a stitchwork pattern. A presser foot located above the cloth has a height changed by an actuator like a stepping motor in accordance with the advancement of a stitchwork formation. Hence, a predetermined clearance between the cloth and the presser foot is maintained.

Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

A sewing machine includes a bed portion, a conveyance portion, a sewing portion, an image capture portion, a projector, a processor, and a memory. The conveyance portion is configured to convey a sewing object placed on the bed portion. The memory is configured to store marker information and computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include causing the image capture portion to perform the image capture at a predetermined timing, during a conveyance period, identifying the marker in a captured image, using the marker information stored in the memory, identifying a projection position corresponding to the identified marker, when the marker is identified, and causing the projector to project the projection image indicating the identified projection position, while following a movement of the marker on the sewing object being conveyed.

An assistance system that can be used for prosthetic heart valve manufacturing or suturing procedures includes an automated fixture that can comprise an articulation arm and a target device holder. The target device holder can be positioned and oriented to reduce operator strain during a manufacturing or inspection process. The assistance system includes a user input device enabling the operator to move between positions to assist in such processes. The assistance system can also be trained by capturing sequences of position data corresponding to a manufacturing or inspection process.