LS Premium Injection Molder    the ONE* Series (500~3,300 Tons)Technology Introduction

The injection molder is a key manufacturing facility for the production of plastic parts used in medical, packaging, automobile, teletronics and home appliances according to the classification of the front-end industries, and LS Premium Injection Molder - the ONE* Series consists of 500 tons to 3,300 tons based on the mold clamping force. It is producing from 1 kg to 40 kg of parts by the criteria of weight, and its main market is medium & large sized automobiles, packaging and home appliances.

Comparing to the conventional 2-mold composite injection machines, it also has an ability to mount a large & heavy mold, an improved productivity (Drive cycle time: world best), and an equivalent location reproducibility as advanced companies, and an CSI (Connected and Smart Injection) function enabling flexible respond to smart injection plant implementation for customers. In aspects of energy use, it uses the power saving servo motor as a standard and is a composite hydraulic injection machine consisting of 2-mold in mechanical point of view. It has the great advantage of 10% to 20% smaller machine size compared to toggle type with 3-mold and of being free to adjust the maximum mold opening stroke.

The medium/large sized domestic injection machine market shall meet the quality expectations of Korean conglomerates, which have grown as a leading global company, but the present status of domestic equipment industry is very different from its level of expectation. In addition, unlike the manufacturing industry, which has grown continuously based on domestic market, it is the trend that many companies expanded their investment in overseas factories rather than domestic.

In aspects of productivity, the rate of injection machine adoption from advanced manufacturers is rising, and in case of small/medium sized companies, it is progressing to expand the introduction of Chinese machines that are entering the market with low sales price.

Accordingly, the injection molder business team of LS Mtron became to develop the advanced injection molder having the excellent mechanical specifications and performances in order to secure a base platform of hydraulic injection machine that can respond to productivity improvement through the implementation of smart factory, and resolve the business difficulties through entering into new overseas market dominated by EU and Japanese companies rather than settling for the domestic market.

LS Premium injection molder - the ONE* Series is designed considering the control driving system for improving accuracy and reproducibility of stop location from the stage of development, as the target for the improvement of productivity through mold protection and robot take-out error reduction. In addition, as the injection devices were modularized to support the use of screws with various diameter, the investment costs would be reduced by selecting and mounting the proper injection devices.

In addition, it has the following advantages: the development of  injection equipment with simplified hydraulic lines makes quick and easy replacement of the barrel assembly, the Tie-Bar pooling apparatus is introduced to enable the mounting of mold using hand-push car in the factory with low ceiling height, and S/W modules (CSI-C, CSI-M) which can control peripheral devices from the injection machine itself were developed to prevent the operator's error and reduce the detection time of facility malfunction.

◆ Key Functions & Quality of the ONE* Series

  1) World best level of dry cycle time, mold open & close time, position reproducibility ±0.2mm

- High Pressure of hydraulic system: Increase the mold open & close time due to compact hydraulic cylinder

- Harf-Nut Structure improvement: Harf-Nut fast & simultaneous up-down motion

- Mold Transfer Friction Minimization: Remove the Tie-Bar bush of transfer mold, Apply the sliding bush for high load.

- Application of KEBA Controller: Precise control through closed loop control

- SSI Type High-Precision Digital Location Sensor Mounting:  Resolution 1um, Repetitive Precision Degree ±0.001% or less

- Application of High-Performance & High-Capacity Electronic Proportional Valve: Hysteresis 1 à 0.1% or less, &  Repeatability 0.5 or 0.05% or less

     2) High-weight mold mounting available, clean environmental implementation

 - Improvement of the structure of fixing and moving mold supporting equipment structure: Increase allowable mold load (1% à 2.5%)

   - Application of sliding bush for high load: Apply the semi-permanent self-lubrication, Maintenance unnecessary, Apply the oil recovery system

   3) Change the structure of harfnut, improve the cleanness of operating oil, and strengthen the ability of oil leak prevention

   - Reduce the harfnut tightening time more than 30%

 - Change the operation form harfnut simultaneous left & right motion to simultaneous up & down motion: Tie-Bar horizontal support effect in case of harfnut close

 - Improve the shape of Tie-Bar & harfnut screw (Trapezoidal shaped screw à U-shaped screw): Uniform mold clamping force, improve the stability of mold open.

    - Improve the cleanliness of operating oil tank: Special coating inside the tank

    - Reduce the operating flow: 3,400l à 2,000l, based on 1,800 tons

    - No use of welding piping: Galvanized expansion pipe, FKM sealing applied pipe fitting, Apply O-ring type hose fitting

          < the ONE* Series Structure>

4)  Injection device structure change

    -  Quick Barrel Change System: In case of Barrel assembly change, barrel replacement available without turning of the injection device.

-  Application of Barrel Support System: Prevent the deflection

-  Moment Zero Nozzle Touch Structure: No moment due to the eccentricity by arrangement of the nozzle cylinder parallel to the barrel

    -  Strengthen the modulation response

5)  Application of automatic Tie-Bar separating system

      - One-touch Automatic Tie-Bar Separating/ Disassembly, Assembly Unnecessary: Easy mold mounting in a low ceiling factory, and hand-push car for mold unnecessary

For more information on 'LS Premium Injection Molder - the ONE* Series', please contact website 

(http://www.lsinjection.com) or LS Mtron, injection molding system Division Tel : +82 31-8045-9742