The invention relates to a new melting index testing machine. The pressure bar is located in the barrel, the top of the pressure bar is equipped with a weight, the bottom of the barrel is equipped with an orifice, the outer shell of the barrel is equipped with a heating body, the outer shell is equipped with a shell under the orifice die, the one end of the orifice die baffle is equipped with a handle, the positioning pin is arranged on the handle, the orifice baffle is equipped with a waist hole penetrating the lower end of the orifice die baffle, and the drop die is arranged on the waist hole. The length direction of the hole and the waist hole is the same as the length direction of the handle. The width dimension of the waist hole is smaller than the outer diameter dimension of the die and larger than the inner diameter dimension of the die. The die drop hole is a round hole. The hole size of the die drop hole is larger than the outer diameter dimension of the die. A cleaning pipe is arranged at the upper end of the shell, and the outlet of the cleaning pipe is directed towards the inner cavity of the material cylinder. The invention has simple structure. When the die is disassembled, the handle is pulled to drive the die baffle to move, so that the die falls from the die hole. After replacing the die, the die baffle is pushed in, positioned by the positioning pin, and cleaned by the cleaning tube, so that the worker's labor intensity is reduced conveniently and quickly, and the work efficiency is high.
【技术实现步骤摘要】
新型熔融指数试验机
本专利技术涉及试验机,尤其涉及新型熔融指数试验机。
技术介绍
塑料融体流经出料口内孔的质量,来计算塑料的熔融指数,熔融指数仪是被广泛应用于高分子材料生产与应用领域中的测量仪器。在一定温度与压力下,塑料的熔融指数的测试精度取决于出料口内孔的几何精度、表面粗糙度、长度,这类出料口具有:内孔孔径细(Φ2.095+-0.025,Φ1.0180+-0.010),尺寸精度要求严格,内孔的表面粗糙度低,孔径的细长比大(一般在1∶5-15)等特点,因此加工时有相当的难度。在试验完成后,正常需要对口模进行清理,传统清理口模方式需将其拆卸下来,拆卸方式麻烦,安装也麻烦,工作效率低,清洗料筒时都是外接水管来清洗,水管的长度不易控制,导致清洗不方便。
技术实现思路
针对上述缺陷,本专利技术的目的在于提供一种结构简单,口模安装拆卸方便,清洗料筒方便快捷,工作效率高的新型熔融指数试验机。为此本专利技术所采用的技术方案是:包括料筒和压杆,所述压杆位于料筒内,压杆顶端设有砝码,料筒内底部设有口模,料筒外套有加热体,加热体外设有外壳,口模下方设有口模挡板,口模挡板一端设有手柄,手柄上设有定位销,口模挡板上设有贯穿口模挡板上下端面的腰型孔,腰型孔上设有落模孔,腰型孔的长度方向与手柄长度方向一致,所述腰型孔的宽度尺寸小于口模外径尺寸且大于口模内径尺寸,所述落模孔为圆孔,所述落模孔的孔径尺寸大于口模外径尺寸,外壳上端设有清洗管,清洗管的出水口朝向料筒内腔。作为上述技术方案的进一步改进,所述加热体与外壳之间设有保温棉。作为上述技术方案的进一步改进,所述清洗管连接有水泵,所述水泵连接 ...
【技术保护点】
1.新型熔融指数试验机,其特征在于,包括料筒和压杆,所述压杆位于料筒内,压杆顶端设有砝码,料筒内底部设有口模,料筒外套有加热体,加热体外设有外壳,口模下方设有口模挡板,口模挡板一端设有手柄,手柄上设有定位销,口模挡板上设有贯穿口模挡板上下端面的腰型孔,腰型孔上设有落模孔,腰型孔的长度方向与手柄长度方向一致,所述腰型孔的宽度尺寸小于口模外径尺寸且大于口模内径尺寸,所述落模孔为圆孔,所述落模孔的孔径尺寸大于口模外径尺寸,外壳上端设有清洗管,清洗管的出水口朝向料筒内腔。
【技术特征摘要】
1.新型熔融指数试验机,其特征在于,包括料筒和压杆,所述压杆位于料筒内,压杆顶端设有砝码,料筒内底部设有口模,料筒外套有加热体,加热体外设有外壳,口模下方设有口模挡板,口模挡板一端设有手柄,手柄上设有定位销,口模挡板上设有贯穿口模挡板上下端面的腰型孔,腰型孔上设有落模孔,腰型孔的长度方向与手柄长度方向一致,所述腰型孔的宽度尺寸小于口模外径尺寸且大于口模内径尺寸,所述落模孔为圆孔,所述落模孔的孔径尺寸大于口模...
【专利技术属性】
技术研发人员:沈克会,
申请(专利权)人:江苏新真威试验机械有限公司,
类型:发明
国别省市:江苏,32
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。