Nissei exhibits two molding machine models at "The 6th China Dongguan Int'l Plastics, Packaging & Rubber Exhibition"
Nissei Plastic Industrial Co., Ltd. is going to exhibit and demonstrate, at "The 6th China Dongguan Int'l Plastics, Packaging & Rubber Exhibition" to be held from November 10th through the 13th in Dongguan City, Guangdong Province, China, two injection molding machine models; a hydraulic two-color/dissimilar material injection molding machine "DC120" which has newly undergone a model change, and an electric molding machine "NEX1000" from the "ELJECT NEX Series" which has acquired a good reputation from customers since it was put on the market.
At this time, the exhibition is performed jointly with Hong Kong Nylon Enterprises Ltd., Nissei's sales agent in Hong Kong.
In the Province of Guangdong, Hong Kong's, Taiwanese and Korean corporations including Japanese manufacturers of IT-related products such as cellular telephones and personal computers have concentrated. In addition, major local manufacturers in China are also intensively operating.
 Outline of exhibiting machines
1. Hydraulic two-color/dissimilar material injection molding machine "DC120"
This machine is of a mold clamping force of 120 tons (1190 kN) type. It has undergone a model change for the principal purpose of improving the properties corresponding to high-cycle molding and the control characteristics in the two-color/dissimilar material injection molding. Its functions have been sharply improved by mounting a new controller "TACT" and reviewing the mechanism. However, its retail price is left unchanged, signifying substantial reduction in price.
Main features of the new controller "TACT" (hydraulic):
| (1) |
High-speed scanning time of 500 microseconds (1/2,000 second) materializes repeated stable molding. |
| (2) |
The man-machine-interface with a 12.1 inch color liquid crystal screen. |
| (3) |
The tilt mechanism is capable of changing a screen angle to fit with an operator. |
| (4) |
The high-response/high-resolution touch panel is equipped. |
| (5) |
Various kinds of molding programs are equipped as standard. |
| (6) |
Reinforcement of quality control functions. |
| (7) |
The languages of 6 countries, namely, Japanese, English, Chinese, Spanish, Korean and Thai are equipped as standard. |
| (8) |
A maximum of 300 molding conditions can be internally memorized. |
Features of the mechanism are:
Mold clamping mechanism side;
| (1) |
The adoption of a servomotor for a mold reverse system inside the mold clamping mechanism materializes shockless speed adjustment and high speed rotation. The mold reverse time is shortened to a half (0.9 second for DC120 type) of existing machines. It also makes working environment clean (oil and grease are unnecessary). Moreover, simultaneous rotation during mold opening (rotation at ejection) becomes possible, contributing cycle-up of molding. |
| (2) |
For preventing abrasion of a rotary platen, a push-up/pull-in system is adopted which ensures high precision of the rotary platen and longer service life of machines and molds. |
| (3) |
The adoption of a system to install a fast-forwarding unit in the outside of a movable platen cylinder materializes the high speed, doubling the mold opening speed of existing machines. |
| (4) |
The addition of a mold mounting hole to the vertical direction expands the size of attachable molds. The size is extended 50 mm to the vertical direction for the 120 tons type models and 100 mm for the 200 tons models. |
| (5) |
It is of a mold-friendly structure with devices including the prevention of the inclination of the rotary platen. |
Injection mechanism side;
| (1) |
By increasing the number of screw rotations by 25% in comparison with existing models, plasticizing capacity is improved. |
| (2) |
By strengthening the power with loading a 22 kW (18.5 kW up to now) pump motor, injection speed is accelerated (120 to model). |
At the exhibition hall, the molding of coasters is demonstrated using beige and blue colored resin.
2. Electric injection molding machine "ELJECT NEX1000"
This machine is of a mold clamping force of 80 tons (784 kN) type from the "ELJECT NEX Series" which has acquired a good reputation from customers since it was put on the market in July of last year.
The "NEX Series" has been developed as a useful molding machine for further pursuit of high productivity, reduction of defective moldings, mold protection and energy-saving, and also for solving various problems with which molding sites are confronted such as improvement of operatively and working environment.
The biggest feature of the "NEX Series" is the loading of an exclusive use controller "TACT" which has the fastest injection scanning time of 100 microseconds (1/10,000 second). Concretely, it reduces unevenness of injection pressure by 50%, which influences the precision of molded products, and its injection speed is raised up to 40% as compared with conventional machines. Moreover, by improving response and reproducibility of the injection process control and VP change, it displays its great force especially in high-speed molding. It is also equipped with versatile control programs ideal for molding as standard such as mold clamping compression control and in-mold processing control including holding pressure position control.
Main features in the mechanism;
| (1) |
In addition to the standard and high-speed specifications, high-load specifications (optional) are newly prepared for the injection speed corresponding to optical thick-wall products and other products. |
| (2) |
It is mounted with a new high efficiency mold protection function. It actualizes the "ultra high-speed reaction workings" which instantly start mold opening action upon detecting foreign substances in a mold during mold clamping. It prevents a mold from breakage. Its foreign substance detection time is 0.013 second, a 1/10 of conventional machines. |
| (3) |
Its injection shaft, which is apt to get a load, is equipped with a newly developed "liquid lubrication type ball screw" (injection type of more than 36E), and actualizes the maintenance of the injection shaft precision and high-durability over a long period. Its durability is improved more than double of conventional machines. |
| (4) |
Electricity consumption is further reduced than conventional machines. |
| (5) |
It is equipped with a new mold clamping system "Flat Clamp" which is ideal for high-cycle molding and precision molding. Based on the structure analysis, and by means of a movable platen newly designed and a stationary platen supported at the center, it demonstrates uniform mold clamping force with less deflection. |
| (6) |
It is mounted with a simultaneous nozzle and heating cylinder temperature raising function for preventing the resin in a nozzle from carbonization and deterioration. |
| (7) |
The time from mold clamping to take-out of molded products (dry-cycle) is shortened by maximum 35% as against conventional machines. |
| (8) |
Machine vibration at mold opening/closing is decreased by 20% as compared with conventional machines. |
The exclusive controller "TACT" is of a man-machine-interface type for which a 12.1 inch color liquid crystal screen (with a tilt-mechanism) is equipped. It is capable of setting a free screen angle to fit the height of an operator.
Main features of the functions:
| (1) |
The 6 languages of Japanese, English, Chinese, Spanish, Korean and Thai are equipped as standard. They are easily switched by one-touch. |
| (2) |
A ladder programming function open for customers: It is capable of freely preparing simple interface programs with peripheral equipment on a molding machine screen. |
| (3) |
A compact flash (optional) is adopted as an external memory unit: In addition to the molding conditions and profile data, it is capable of taking in image data. It can also control molding conditions and sample images as one set. (The display on a TACT screen of a standard work document with images is possible) |
| (4) |
Reinforcement of quality control functions: By means of expansion and enrichment of molding monitoring items, it is capable of setting up the statistic results of molding-monitoring data as the checking conditions whether products are good or bad. |
| (5) |
A LAN connecter is equipped as standard: Connection with the quality and production control system becomes easy (adapter is unnecessary). It actualizes control systems at low price such as quality and production control, and molded product analysis. |
| (6) |
It is capable of memorizing internally up to 300 molding conditions. |
At the exhibition hall, the molding of front panels of telephones is demonstrated.
Nissei's booth is No. ip34.
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