CN108544729A - 一种添加欠驱动搅拌结构的双螺旋加热拉丝机 - Google Patents
一种添加欠驱动搅拌结构的双螺旋加热拉丝机 Download PDFInfo
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Abstract
本发明公开了一种具有欠驱动搅拌结构的双螺旋拉丝机，包括基座、电机、联轴器、端盖、向心轴承、进料口、料斗、欠驱动搅拌结构、机筒、支座、双螺旋加热螺杆、螺杆螺槽、拉丝机头、出料口。本发明通过多个入料口，将原料、改性剂、着色剂直接在料斗混合均匀，提供生产效率；采用双螺旋叶片加热模块，提高加热效率，提升温控精度，解决拉丝过程中易断的问题。此拉丝机充分利用热能，减少能源浪费。
Description
技术领域
本发明涉及3D打印耗材生产领域，具体涉及一种添加欠驱动搅拌结构的双螺旋加热拉丝机。
背景技术
在全世界范围内，随着3D打印技术的高速发展，3D打印耗材使用量与日剧增。在我国3D打印耗材需求量呈迅猛递增的趋势，消耗量的增大，能源消耗也相应增加。现有塑料拉丝机需提前混合塑料颗粒与改性剂；其加热采用出料口加热模块加热方式，进行拉丝生产耗材；生产过程中发现此方法存在能耗大、拉丝精度低、温控不准、工艺繁复的问题。若大力推广3D打印技术，这是亟待解决的问题。因此，设计出一种操作简单、生产效率高、节能明显、降低生产成本的拉丝机才能满足当今社会对3D打印耗材的巨大需求。
发明内容
本发明的目的是采用欠驱动搅拌结构，实现原料、改性剂、着色剂在料斗直接混合均匀；采用双螺旋叶片加热模块，解决温控不准、拉丝精度低问题；从而设计出一种新型塑料拉丝机。
一种添加欠驱动搅拌结构的双螺旋加热拉丝机。包括电机与双螺旋加热螺杆经联轴器连接，双螺旋加热螺杆位于机筒内部，机筒左端依次是端盖、向心轴承，右端依次是螺杆螺槽、拉丝机头、出料口，上端是带有进料口和欠驱动搅拌结构的料斗，下端连接支座，拉丝机整体固定于基座。
进一步，欠驱动搅拌结构固定于料斗内部。
进一步，欠驱动搅拌结构是一种通过上端电机连接中间搅拌叶片和下端筛板的转动结构。
进一步，电流接口通过向心轴承处接入到双螺旋加热螺杆叶片上，实现快速加热。
进一步，双螺旋加热螺杆带有叶片，叶片由一条铜片整体制造而成的正反双螺旋方式构成。
本发明的优点是对进料口进行改进，在现有塑料拉丝机的入口处添加欠驱动搅拌结构。通过电机带动十字转盘旋转菱形刀片混合原料、改性剂和着色剂，混合均匀后，下方的筛分器进行筛分，使粉末下落进入料筒。欠驱动搅拌结构中，每个菱形刀片绕十字转盘的中心轴转动的运动状态可确定，而解除混合原料和改性剂时的运动状态不可确定，此时，菱形刀片的运动状态遵循最小阻力定律。此结构极大程度上解决了小空间内搅拌固体，刀片卡死的问题。
采用双螺旋加热螺杆，从机筒中心进行加热，物料下落进机筒便直接熔融，减少物料的堆积，加快熔融效率。将物料加热和输送一体化，摒弃了原有的在机筒外用电热圈加热的方法。极大地提高了传热效率，避免加热不均导致的断丝等问题。
附图说明
图1是拉丝机平面结构示意图；
图2是欠驱动搅拌结构示意图；
图3是双螺旋加热螺杆示意图；
图4是拉丝机三维结构示意图；
图5是欠驱动搅拌结构三维示意图；
图6是双螺旋加热螺杆三维示意图；
附图1中：1、基座，2、电机，3、联轴器，4、端盖，5、向心轴承，6、进料口①,7、进料口②,8、进料口③，9、料斗，10、欠驱动搅拌结构，11、机筒，12、双螺旋加热蜗杆，13、支座，14、拉丝机头，15、出料口，16、螺杆螺槽。
附图2中：1001、电机，1002、盖板，1003、上十字转盘，1004、下十字转盘，1005、菱形刀片，1006、筛板。
附图3中：1401、正螺旋叶片,1402、反螺旋叶片。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
将支座13和电机2固定在基座1上，双螺旋加热螺杆12开始预热至设定温度，随即欠驱动搅拌结构10转动。塑料粉末经入料口6，改性剂经入料口7，着色剂经入料口8进入料斗9。欠驱动搅拌结构10上端通过盖板1002和下端通过筛板1006固定在料斗中，欠驱动搅拌结构10的电机1001带动上十字转盘1003、下十字转盘1004、菱形刀片1005混合粉末、改性剂、着色剂。混合均匀后，通过筛板1006下落到机筒11中，随后经预热完成的双螺旋加热螺杆12加热熔融。正负电极分别通过向心轴承5接入到正螺旋叶片1401和反螺旋叶片1402上进行加热。混合均匀后的原料一边加热熔融，一边推动，经螺杆螺槽16至拉丝机头14拉丝，最后经过出料口15得到3D打印耗材。
Claims (5)
1.一种具有欠驱动搅拌结构的双螺旋拉丝机，其特征在于：包括基座、电机、联轴器、端盖、向心轴承、进料口、料斗、欠驱动搅拌结构、机筒、支座、双螺旋加热螺杆、螺杆螺槽、拉丝机头、出料口，电机与双螺旋加热螺杆经联轴器连接，双螺旋加热螺杆位于机筒内部，机筒左端依次是端盖、向心轴承，右端依次是螺杆螺槽、挤出头、出料口，上端是带有进料口和欠驱动搅拌结构的料斗，下端连接支座，拉丝机整体固定于基座。
2.根据权利要求1所述的一种具有欠驱动搅拌结构的双螺旋拉丝机，其特征在于:欠驱动搅拌结构固定于料斗内部。
3.根据权利要求1所述的一种具有欠驱动搅拌结构的双螺旋拉丝机，其特征在于:欠驱动搅拌结构是一种通过上端电机连接中间搅拌叶片和下端筛板的转动结构。
4.根据权利要求1所述的一种具有欠驱动搅拌结构的双螺旋拉丝机，其特征在于:电流接口通过向心轴承处接入到双螺旋加热螺杆叶片上，实现快速加热。
5.根据权利要求1所述的一种具有欠驱动搅拌结构的双螺旋拉丝机，其特征在于:双螺旋加热螺杆带有叶片，叶片由一条铜片整体制造而成的正反双螺旋方式构成。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110243191A (zh) * | 2019-05-15 | 2019-09-17 | 湖北嘉辐达节能科技股份有限公司 | 一种窖炉的余热收集利用装置 |
| CN114872293A (zh) * | 2022-05-24 | 2022-08-09 | 安徽理工大学 | 一种eva塑料薄膜挤出机 |
| CN115416251A (zh) * | 2022-09-15 | 2022-12-02 | 海安县恒业制丝有限公司 | 一种尼龙6长丝制备用挤压机及其制丝工艺 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110243191A (zh) * | 2019-05-15 | 2019-09-17 | 湖北嘉辐达节能科技股份有限公司 | 一种窖炉的余热收集利用装置 |
| CN110243191B (zh) * | 2019-05-15 | 2021-03-23 | 湖北嘉辐达节能科技股份有限公司 | 一种窖炉的余热收集利用装置 |
| CN114872293A (zh) * | 2022-05-24 | 2022-08-09 | 安徽理工大学 | 一种eva塑料薄膜挤出机 |
| CN115416251A (zh) * | 2022-09-15 | 2022-12-02 | 海安县恒业制丝有限公司 | 一种尼龙6长丝制备用挤压机及其制丝工艺 |
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