The present invention relates to a selecting device to be disposed downstream of a springs forming device of a springs forming machine. The selecting device may include an inlet adapted to receive springs formed in the springs forming device, outlets adapted to eject each of the springs from the selecting device, means for selectively conveying each of the springs entering the selecting device through the inlet towards the outlets, and means to form conduits to connect the inlet to the outlets. The selecting device may include means for generating a depression in at least one of the conduits and means for generating a compressed air flow directly inside the selecting device at one of the conduits.

A method for making spring includes providing a wire at a working plane by a wire feeding machine; shaping the wire by a first working tool based on a first structure for the spring; and shaping the wire by a second working tool based on a second structure for the spring. In particular, the first working tool and the second working tool are configured to be movable in a reversed-reciprocation way along a direction perpendicular to the working plane.

A method for making spring includes providing a wire at a working plane by a wire feeding machine; shaping the wire by a first working tool based on a first structure for the spring; and shaping the wire by a second working tool based on a second structure for the spring. In particular, the first working tool and the second working tool are configured to be movable in a reversed-reciprocation way along a direction perpendicular to the working plane.

A spring forming machine having tool rotation and tool retraction capabilities, that includes: a rotary beak seat mechanism and a dual-transmission core rotation separation mechanism. The rotary beak seat mechanism is installed on a transmission mechanism of an outside machine panel board through a panel board bearing. The rotary beak seat mechanism includes a rotation component, that rotates 360 degrees around a central axis of the panel board bearing. On a front end of the rotation component is disposed a slide seat component coaxially. The dual-transmission core rotation separation mechanism includes: a first substrate, in a center of a front plate surface of the first substrate is disposed the rotary beak seat mechanism, on a back plate surface of the first substrate is disposed an axle core positioning mechanism, an inner circle core rotation transmission mechanism, and an outer circle tool rotation transmission mechanism.

A spring forming machine having tool rotation and tool retraction capabilities, that includes: a rotary beak seat mechanism and a dual-transmission core rotation separation mechanism. The rotary beak seat mechanism is installed on a transmission mechanism of an outside machine panel board through a panel board bearing. The rotary beak seat mechanism includes a rotation component, that rotates 360 degrees around a central axis of the panel board bearing. On a front end of the rotation component is disposed a slide seat component coaxially. The dual-transmission core rotation separation mechanism includes: a first substrate, in a center of a front plate surface of the first substrate is disposed the rotary beak seat mechanism, on a back plate surface of the first substrate is disposed an axle core positioning mechanism, an inner circle core rotation transmission mechanism, and an outer circle tool rotation transmission mechanism.

Canted coil spring rings each with a first plurality of coils having first coil major and minor axes; a second plurality of coils each having second coil major and minor axes; the coils of the first plurality of coils alternating with the coils of the second plurality of coils according to an alternating pattern. The spring rings having inner and outer perimeters and wherein the inner perimeter of the spring ring is defined by at least said first plurality of coils. The resulting configuration of the spring ring has improved spacing along the inner perimeter, among others, with respect to a similar canted coil spring ring having a constant coil cross section, such as a coil length with all similar coils.

Canted coil spring rings each with a first plurality of coils having first coil major and minor axes; a second plurality of coils each having second coil major and minor axes; the coils of the first plurality of coils alternating with the coils of the second plurality of coils according to an alternating pattern. The spring rings having inner and outer perimeters and wherein the inner perimeter of the spring ring is defined by at least said first plurality of coils. The resulting configuration of the spring ring has improved spacing along the inner perimeter, among others, with respect to a similar canted coil spring ring having a constant coil cross section, such as a coil length with all similar coils.

A spring manufacturing machine comprises a coiling mandrel fixed to a wall and protruding from the wall, and a cutting device that has a slider movable in a direction inclined with respect to the axis of the coiling mandrel and a blade attached to the slider, and cuts a bent wire in cooperation with the coiling mandrel. Preferably, the coiling mandrel protrudes orthogonally to the wall, and the cutting device is attached to the wall in a posture inclined with respect to the wall.

A system for manufacturing a string of pocketed coil springs comprising: a coil-forming subsystem that produces two coil springs; a spring transporter subsystem that receives the two coil springs at a first position and conveys the two coil springs to a second position; a spring compressor subsystem that compresses the two coil springs; a fabric-folding subsystem that receives a piece of fabric and folds the fabric to create an open side; a spring inserter subsystem that receives the two compressed coil springs and inserts the two compressed coil springs between top and bottom surfaces of a folded piece of fabric; two welder subsystems that form first and second welds between top and bottom surfaces of the folded piece of fabric, the first welds and the second welds forming a plurality of pockets in the fabric, each of the plurality of pockets comprising a compressed coil spring.

A system for manufacturing a string of pocketed coil springs comprising: a coil-forming subsystem that produces two coil springs; a spring transporter subsystem that receives the two coil springs at a first position and conveys the two coil springs to a second position; a spring compressor subsystem that compresses the two coil springs; a fabric-folding subsystem that receives a piece of fabric and folds the fabric to create an open side; a spring inserter subsystem that receives the two compressed coil springs and inserts the two compressed coil springs between top and bottom surfaces of a folded piece of fabric; two welder subsystems that form first and second welds between top and bottom surfaces of the folded piece of fabric, the first welds and the second welds forming a plurality of pockets in the fabric, each of the plurality of pockets comprising a compressed coil spring.