The Latest Patent Of Plastic Machinery In May

Corrugated plastic sheath production method and production device thereof

Patent application number: 200610097506.4

Open day: 2008.05.07

Applicant: Jiangsu Tong Guang optoelectronics Co., Ltd.

Address: 226103 Tongguang science and Technology Park, Haimen Economic and Technological Development Zone, Jiangsu, China

Inventor: Wang Shaogang

Abstract: the invention discloses a corrugated plastic sheathing production method and a production device thereof. The production method of corrugated plastic sheathes is to change the extruding screw pushed from plastic extruder to a plastic driving screw from a uniform speed drive to a cyclical fast and slow variable speed pmission device. The production device of the corrugated plastic sheathed device is a driving device of a plastic extruder pushing and pushing plastics, which is fast and slow, and can be driven by a mature technology eccentric wheel drive, a DC speed regulating motor drive or an AC variable frequency motor.

The invention is widely applied to the outer sheath layer extrusion of testing cables, such as longitudinal non slip strain.

The advantages of this method are that the corrugated plastic outer sheath produced by this method is poured into concrete buildings, mines, bridges, tunnels, and dams, and is firmly combined with the tested objects without longitudinal slip, which significantly improves the accuracy and sensitivity of the test, and provides scientific basis for the leaders to make decisions and guide the construction of major projects in national economy, and provides scientific basis for achieving significant benefits.

Plastic forming method and device thereof

Patent application number: 200710159997.5

Open day: 2008.05.14

Applicant: Fu Changhua

Address: No. 22, Lane 526000, Zhaoqing, Guangdong

Inventor: Fu Changhua

Abstract: the invention provides a plastic forming method, which comprises the following steps: (1) pouring plastic pulp into the mould; (2) placing moulds containing plastic pulp in a device with high temperature gas, and uniformly heating, so that the outer layer of plastic pulp in the mould is heated and solidified in high-temperature gas.

The invention also provides a plastic forming device for implementing the plastic forming method, which comprises a box body, an opening and a heating device. The box body is a semi closed box body, and the opening is arranged on the upper part of the box body, and a semi closed chamber is formed inside the box body, and the heating device is arranged on the side wall of the box body.

The plastic forming method is safe, non-toxic, simple in operation, high in yield and good in effect.

Injection machine, control device and method for adjusting driving current of electric motor

Patent application number: 200610138697.4

Open day: 2008.05.14

Applicant: Ningbo Nan Rong Machinery Co., Ltd.

Address: No. 56 - 3, Yanshan River North Road, Beilun, Ningbo economic and Technological Development Zone, China

Inventor: Ye Zhengji

Abstract: the invention discloses an injection molding machine, a control device and a method for adjusting the driving current of an electric motor.

The injection molding machine includes a hydraulic pump.

The motor is used to output torque.

The hydraulic pump is connected to the motor to output the flow due to the torque.

The control device is connected to the motor, and comprises a frequency converter, a current measuring unit and a processor.

The inverter supplies the driving current to the motor.

The current measuring unit is used to measure the driving current and generate digital current signals.

The processor receives the digital current signal and generates an adjustment signal due to the digital current signal.

The frequency converter receives the adjustment signal and adjusts the current of the drive because the signal should be adjusted.

The adjusted driving current is suitable for changing the torque and the output flow.