Abstract: A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.

Abstract: A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.

Abstract: A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.

Abstract: A connecting terminal free of dark spots for a light strip, comprising a bracket, wherein the bracket is fixedly provided with two pin groups, each pin group comprises at least two pins, the pins in each pin group are in communication with each other, the pin is made of a conducting material; a light using the connecting terminal free of dark spots for light strip comprises a plurality of light strips and said connecting terminal, the light strip are provided with two connecting jacks at both ends thereof, each connecting jack is connected with one of the pins in each corresponding pin group. The connecting terminal employing the above structure is convenient and rapid; thus realizing the connection free of dark spots of the light strip. The installation is also very convenient. Therefore, the structure is simple and useful, with remarkable technical effects.

Abstract: A connecting terminal free of dark spots for a light strip, comprising a bracket, wherein the bracket is fixedly provided with two pin groups, each pin group comprises at least two pins, the pins in each pin group are in communication with each other, the pin is made of a conducting material; a light using the connecting terminal free of dark spots for light strip comprises a plurality of light strips and said connecting terminal, the light strip are provided with two connecting jacks at both ends thereof, each connecting jack is connected with one of the pins in each corresponding pin group. The connecting terminal employing the above structure is convenient and rapid; thus realizing the connection free of dark spots of the light strip. The installation is also very convenient. Therefore, the structure is simple and useful, with remarkable technical effects.

Abstract: A non-isolated switching mode power supply for a high-voltage light strip is disclosed. The non-isolated switching mode power supply comprises a full-bridge rectifier circuit, a switch tube Q2, an electrolytic capacitor C2, an energy-storage inductor L1, a diode D4 and a PWM circuit. A PWM signal output end of the PWM circuit is connected with a control electrode of the switch tube Q2, the switch tube Q2 and the diode D4 are in series connection between the two output ends of the full-bridge rectifier circuit, a negative electrode of the switch tube D4 is connected with a positive output end +VCC of the full-bridge rectifier circuit, and the energy-storage inductor L1 is connected between a negative electrode of the electrolytic capacitor C2 and a positive electrode of the diode D4.

Abstract: A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.

Abstract: A high speed mechanical bearing for rotatably supporting the journal of a rotor comprises an annular frame defining a bore dimensioned to receive the journal, and a plurality of angularly spaced rollers carried by the frame. The rollers are arranged to project into the bore and into rotating contact with the journal.

Abstract: A dual ratio drive for a rotary sheer comprises a parallel pair of first shafts carrying freely rotatable first gears. A pair of second shafts are rotatable about axes parallel to the axes of the first shafts. Each second shaft carries a shear blade, and a second gear in meshed relationship with one of the first gears. A drive shaft is connectable to one of the second shafts by a first gear set having first high speed ratio, and is connectable to one of the first shafts by a second gear set having a low speed ratio. A clutch alternately engages one or the other of the first and second gear sets to drive the second shafts and their respective shear blades at the different speeds.

Abstract: In a laying head for forming a longitudinally moving hot rolled product into a helix, a tubular quill has a central axis of rotation and a through passageway extending along the central axis from a first end to an opposite second end of the quill. The interior quill surface has a cylindrical section leading from the first end of the passageway to a radially outwardly flared section which in turn leads to the second end of the passageway. A laying pipe is received in the through passageway. The laying pipe has an entry end aligned with the central axis at the first end of the passageway, a curved intermediate portion surrounded by the flared section of the interior quill surface, and an end portion projecting axially from the second end of the passageway to a delivery end spaced radially from the central axis.