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    • 4. 发明申请
    • Method for electrically operated plastics injection
    • 电动注塑方法
    • US20010005062A1
    • 2001-06-28
    • US09770343
    • 2001-01-26
    • M. Barr KlausNorman L. Steffens
    • B29C045/00
    • B29C45/53B29C45/531B29C45/54B29C45/542B29C2045/1792B29C2045/536
    • A two-stage, electrically-powered injection unit for an injection molding machine includes an extruder for plasticating material, and a separate melt accumulator to receive the plasticated material. The accumulator includes an injection plunger that is slidably positioned to inject the plasticated material from the accumulator into a mold. The plunger is rotated and translated by an electrically-driven linear actuator, such as a roller screw mechanism. The plunger extends outwardly of the accumulator barrel at the commencement of an injection stroke and is peripherally supported by a bushing at the outer end of the accumulator barrel. The outwardly-extending portion of the plunger can also be supported by a movable intermediate support member to minimize lateral deflection of the plunger and enable a longer injection stroke to be employed. The injection pressure imposed upon the plasticated material can be varied from a relatively low initial injection pressure, to minimize lateral deflection of the plunger, to a relatively higher injection pressure as the length of the portion of the plunger that extends outwardly of the accumulator barrel decreases.
    • 用于注射成型机的两级电动注射单元包括用于塑化材料的挤出机和用于接收塑化材料的单独的熔融蓄积器。 蓄能器包括可滑动地定位以将来自蓄能器的塑化材料注入模具的注射柱塞。 柱塞通过诸如滚柱螺杆机构的电动线性致动器旋转和平移。 在注射行程开始时,柱塞从蓄压器筒的外部延伸,并且在储液器筒的外端处由衬套周向支撑。 柱塞的向外延伸的部分也可以由可移动的中间支撑构件支撑,以最小化柱塞的横向偏转并且能够采用更长的注射冲程。 施加在塑化材料上的注射压力可以从相对低的初始注射压力变化,以使柱塞的横向偏转最小化到相对较高的注射压力,因为延伸到蓄压器筒体外部的柱塞部分的长度减小 。
    • 6. 发明授权
    • Electrically operated injection apparatus
    • 电动注射装置
    • US06193499B1
    • 2001-02-27
    • US09248935
    • 1999-02-12
    • M. Barr KlausNorman L. Steffens
    • M. Barr KlausNorman L. Steffens
    • B29C4570
    • B29C45/53B29C45/531B29C45/54B29C45/542B29C2045/1792B29C2045/536
    • A two-stage, electrically-powered injection unit for an injection molding machine is disclosed. The injection unit includes an extruder for plasticating material, and a separate melt accumulator to receive the plasticated material. The accumulator includes an injection plunger that is slidably positioned to inject the plasticated material from the accumulator into a mold. The plunger is rotated and translated by an electrically-driven linear actuator, such as a roller screw mechanism. The plunger extends outwardly of the accumulator barrel at the commencement of an injection stroke and is peripherally supported by a bushing at the outer end of the accumulator barrel. The outwardly-extending portion of the plunger can also be supported by a movable intermediate support member to minimize lateral deflection of the plunger and enable a longer injection stroke to be employed. The injection pressure imposed upon the plasticated material can be varied from a relatively low initial injection pressure, to minimize plunger lateral deflection, to a relatively higher injection pressure as the length of the portion of the plunger that extends outwardly of the accumulator barrel decreases.
    • 公开了一种用于注射成型机的两级电动注射单元。 注射单元包括用于塑化材料的挤出机和用于接收塑化材料的单独的熔融蓄热器。 蓄能器包括可滑动地定位以将来自蓄能器的塑化材料注入模具的注射柱塞。 柱塞通过诸如滚柱螺杆机构的电动线性致动器旋转和平移。 在注射行程开始时,柱塞从蓄压器筒的外部延伸,并且在储液器筒的外端处由衬套周向支撑。 柱塞的向外延伸的部分也可以由可移动的中间支撑构件支撑,以最小化柱塞的横向偏转并且能够采用更长的注射冲程。 施加在塑化材料上的注射压力可以从相对低的初始注射压力变化,从而将柱塞横向偏转最小化到相对更高的注射压力,因为延伸到储液器筒外侧的柱塞部分的长度减小。
    • 9. 发明授权
    • Method for electrically operated plastics injection
    • 电动注塑方法
    • US06471904B2
    • 2002-10-29
    • US09770343
    • 2001-01-26
    • M. Barr KlausNorman L. Steffens
    • M. Barr KlausNorman L. Steffens
    • B29C4570
    • B29C45/53B29C45/531B29C45/54B29C45/542B29C2045/1792B29C2045/536
    • A two-stage, electrically-powered injection unit for an injection molding machine includes an extruder for plasticating material, and a separate melt accumulator to receive the plasticated material. The accumulator includes an injection plunger that is slidably positioned to inject the plasticated material from the accumulator into a mold. The plunger is rotated and translated by an electrically-driven linear actuator, such as a roller screw mechanism. The plunger extends outwardly of the accumulator barrel at the commencement of an injection stroke and is peripherally supported by a bushing at the outer end of the accumulator barrel. The outwardly-extending portion of the plunger can also be supported by a movable intermediate support member to minimize lateral deflection of the plunger and enable a longer injection stroke to be employed. The injection pressure imposed upon the plasticated material can be varied from a relatively low initial injection pressure, to minimize lateral deflection of the plunger, to a relatively higher injection pressure as the length of the portion of the plunger that extends outwardly of the accumulator barrel decreases.
    • 用于注射成型机的两级电动注射单元包括用于塑化材料的挤出机和用于接收塑化材料的单独的熔融蓄积器。 蓄能器包括可滑动地定位以将来自蓄能器的塑化材料注入模具的注射柱塞。 柱塞通过诸如滚柱螺杆机构的电动线性致动器旋转和平移。 在注射行程开始时,柱塞从蓄压器筒的外部延伸,并且在储液器筒的外端处由衬套周向支撑。 柱塞的向外延伸的部分也可以由可移动的中间支撑构件支撑,以最小化柱塞的横向偏转并且能够采用更长的注射冲程。 施加在塑化材料上的注射压力可以从相对低的初始注射压力变化,以使柱塞的横向偏转最小化到相对较高的注射压力,因为延伸到蓄压器筒体外部的柱塞部分的长度减小 。