Model: Textile Machinery - Twister Machine - Twister Machine
The staple fiber twister is a twisting machine, which is mainly used for the twisting of short fibers such as combed cotton, wool yarns, and polyester blends.
Precise degree of control, ie twisting motor and winding motor with closed-loop speed control
Winding requires no ribbing, no doffing, no yarn
3. Plan descriptionThis program selects our 226M-CAN controller. This type of CPU can build a PPI network to realize the human-machine interaction with the HMI; a free port communication, and data reading and writing functions with third-party inverters; a CAN communication port, Establish CANopen network master station to realize real-time and efficient communication with winding servo and traverse servo.
4. Solution diagram
(1) Constant winding speed: The winding speed is the main vehicle speed, which determines the production speed of the whole machine. The servo motor speed is set according to the winding speed and the servo controller can perform PID adjustment.
(2) Twisting speed is constant: Twisting spindles require constant speed under different loads. The speed measurement function of the T-method that comes with the PLC of our company can realize accurate speed measurement. Through PLC internal PID adjustment, it can achieve constant twisting speed.
(3) traverse speed: traversing speed is the speed of lateral thread moving, according to the winding requirements of different types of yarn winding speed and winding speed to form a ratio, to determine the cross angle of the winding back and forth; If it is too slow or too fast, too slow results in an excessive accumulation of spines when the traversing direction is reversed, resulting in hard deformation and dropping. If the rotation is too fast, the servo will overshoot or flicker and cause the wire to drop.
(4) Start and stop synchronization: In the three processes of starting, running and stopping, the spindle speed, winding speed and traverse speed are strictly kept in synch, thus effectively ensuring that the winding error is within the minimum range.
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PLCC Connectors -PLCCSockets
A PLCC socket is a component that connects a chip carrier to an electronic circuit via surface-mounting or through-hole technology.
Plastic leaded chip carriers (PLCCs) are used in surface-mount technology where electronic circuits are produced, and components need to be mounted or placed directly onto a printed circuit board (PCB). The chip carrier is placed in a PLCC socket, which is either surface-mounted or features through-hole technology. A specialised tool called a PLCC extractor is needed to remove the chip carrier from the PLCC socket.
What are PLCC sockets used for?
PLCC sockets are used in surface-mount device (SMD) and surface-mount technology (SMT) applications. PLCC sockets made of heavy gauge copper alloy are compatible in high shock / high vibration applications. PLCC sockets made of rolled-leaf copper are useful in low-cost computer applications.
Types of PLCC sockets
The two primary categories of PLCC sockets are:
Surface-mount PLCC sockets, which are used in devices sensitive to heat from the reflow process. These allow for component replacement without redesigning or reworking the entire PCB.
Through-hole technology PLCC sockets are necessary when a device requires stand-alone programming with flash drives or memory devices. These are also beneficial for prototyping activities where wire wrapping is required.
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