A precise positioning mechanism for automatic hat-making production line equipment includes a rack, an installation seat, a jacking device, a positioning column, a material pickup and discharging platform, a support column, a guide rod, and an infrared ranging sensor. The material pickup and discharging platform is located at a top of one side of the rack. The installation seat is arranged on both sides of a bottom of the material pickup and discharging platform separately through bolts. The jacking device is arranged at a bottom of the installation seat of the material pickup and discharging platform through bolts. The positioning column corresponding to a position of the jacking device is inserted into both sides of a top of the material pickup and discharging platform separately. An output end of the jacking device and a bottom of the positioning column are connected through bolts.

A precise positioning mechanism for automatic hat-making production line equipment includes a rack, an installation seat, a jacking device, a positioning column, a material pickup and discharging platform, a support column, a guide rod, and an infrared ranging sensor. The material pickup and discharging platform is located at a top of one side of the rack. The installation seat is arranged on both sides of a bottom of the material pickup and discharging platform separately through bolts. The jacking device is arranged at a bottom of the installation seat of the material pickup and discharging platform through bolts. The positioning column corresponding to a position of the jacking device is inserted into both sides of a top of the material pickup and discharging platform separately. An output end of the jacking device and a bottom of the positioning column are connected through bolts.

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.

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.

A sewing machine includes a bed, a feed unit, a sewing unit, a projector, and a controller. The projector is configured to project a projection image to the bed. The controller is configured to, where the feed unit and the sewing unit do not perform sewing, execute a first control in which the controller causes the projector to project a first image to the bed, the first image including a first object and a second object, the first object indicating a planned sewing position, the second object indicating a reference position to position the workpiece. The controller is configured to, where the feed unit and the sewing unit perform sewing, execute a second control in which the controller causes the projector to project a second image to the bed, the second image including the first object and not including the second object.

A sewing machine includes a bed, a feed unit, a sewing unit, a projector, and a controller. The projector is configured to project a projection image to the bed. The controller is configured to, where the feed unit and the sewing unit do not perform sewing, execute a first control in which the controller causes the projector to project a first image to the bed, the first image including a first object and a second object, the first object indicating a planned sewing position, the second object indicating a reference position to position the workpiece. The controller is configured to, where the feed unit and the sewing unit perform sewing, execute a second control in which the controller causes the projector to project a second image to the bed, the second image including the first object and not including the second object.

In a sewing machine, an arm includes, on one side thereof in a first direction, a head. A needle bar is disposed at the head to reciprocally move in a second direction. A feed mechanism feeds a workpiece from one side toward the other side of the head in a third direction. The projection unit disposed at the head projects a projection image toward a bed. The projection unit includes an emitter for projecting image light of the projection image. The photographing unit disposed at the head captures a photographing target. The photographing unit includes an incident portion on which light reflected by the photographing target is incident. The emitter and the incident portion are disposed further toward the one side of the arm in the first direction than the needle bar, and further toward the one side of the head in the third direction than the needle bar.

The binding guide is provided by a substantially rigid translucent non-regular hexagon body, having first, second, third, fourth, fifth and sixth peripheral edges. The first, second and third peripheral edges define a generally rectangular section of the translucent body. The fourth, fifth and sixth peripheral edge sections define a generally obtuse pointed section of the translucent body. At least one isosceles triangular ruling for establishing a binding margin is aligned to the third peripheral edge, as is at least one binding width guideline proximate to the third peripheral edge. At least one set of aligned apertures is disposed within the translucent body to uniformly fold the binding margin. And associated method of use is also provided.

A sewing machine includes a bed, a feed unit, a sewing unit, a projector, and a controller. The projector is configured to project a projection image to the bed. The controller is configured to, where the feed unit and the sewing unit do not perform sewing, execute a first control in which the controller causes the projector to project a first image to the bed, the first image including a first object and a second object, the first object indicating a planned sewing position, the second object indicating a reference position to position the workpiece. The controller is configured to, where the feed unit and the sewing unit perform sewing, execute a second control in which the controller causes the projector to project a second image to the bed, the second image including the first object and not including the second object.

A sewing machine includes a bed, a feed unit, a sewing unit, a projector, and a controller. The projector is configured to project a projection image to the bed. The controller is configured to, where the feed unit and the sewing unit do not perform sewing, execute a first control in which the controller causes the projector to project a first image to the bed, the first image including a first object and a second object, the first object indicating a planned sewing position, the second object indicating a reference position to position the workpiece. The controller is configured to, where the feed unit and the sewing unit perform sewing, execute a second control in which the controller causes the projector to project a second image to the bed, the second image including the first object and not including the second object.