热购彩票官网

新闻资讯

More>>

推荐资讯

More>>

推荐产品

行业资讯

COMPANY NEWS

当前位置:网站首页 > 新闻资讯 > 行业资讯
  • 抛丸机传动系统怎样发挥作用的
  • 本站编辑:杭州伟国型钢有限公司发布日期:2019-04-03 21:16 浏览次数:
抛丸机传动系统是如何发挥作用的?伟国型钢抛丸机厂家来给大家讲述一下。
 
抛丸机旋转运动的塑料熔体转变为平行直线运动,均匀平稳的导入模套中,并赋予塑料以必要的成型压力。塑料在机筒内塑化压实,经多孔滤板沿一定的流道通过机头脖颈流入机头成型模具,模芯模套适当配合,形成截面不断减小的环形空隙,使塑料熔体在芯线的周围形成连续密实的管状包覆层。为保证机头内塑料流道合理,消除积存塑料的死角,往往安置有分流套筒,为消除塑料挤出时压力波动,也有设置均压环的。机头上还装有模具校正和调整的装置,便于调整和校正模芯和模套的同心度。
抛丸机挤塑机按照机头料流方向和螺杆中心线的夹角,将机头分成斜角机头(夹角120o)和直角机头。机头的外壳是用螺栓固定在机身上,机头内的模具有模芯坐,并用螺帽固定在机头进线端口,模芯座的前面装有模芯,模芯及模芯座的中心有孔,用于通过芯线;在机头前部装有均压环,用于均衡压力;挤包成型部分由模套座和模套组成,模套的位置可由螺栓通过支撑来调节,以调整模套对模芯的相对位置,便于调节挤包层厚度的均匀性。机头外部装有加热装置和测温装置。
2.抛丸机传动系统 传动系统的作用是驱动螺杆,供给螺杆在挤出过程中所需要的力矩和转速,通常由电动机、减速器和轴承等组成。
3.加热冷却装置 加热与冷却是塑料挤出过程能够进行的必要条件。
现在挤塑机通常用的是电加热,分为电阻加热和感应加热,加热片装于机身、机脖、机头各部分。加热装置由外部加热筒内的塑料,使之升温,以达到工艺操作所需要的温度。
冷却装置是为了保证塑料处于工艺要求的温度范围而设置的。具体说是为了排除螺杆旋转的剪切摩擦产生的多余热量,以避免温度过高使塑料分解、焦烧或定型困难。机筒冷却分为水冷与风冷两种,一般中小型挤塑机采用 风冷比较合适,大型则多采用水冷或两种形式结合冷却;螺杆冷却主要采用中心水冷,目的是增加物料固体输送率,稳定出胶量,同时提高产品质量;但在料斗处的冷却,一是为了加强对固体物料的输送作用,防止因升温使塑料粒发粘堵塞料口,二是保证传动部分正常工作。



How does the ball throwing machine drive system work? Weiguo steel pellet machine manufacturers to tell you about.
The rotating plastic melt of the pellet throwing machine is transformed into a parallel linear motion, evenly and smoothly introduced into the mold sleeve, and the plastic is given the necessary forming pressure. The plastic is plasticized and compacted in the barrel. The porous filter plate flows into the head molding mold through the nose neck of the nose through a certain flow channel. The die core sleeve is properly matched to form a circular gap with a continuous reduction in cross section. The plastic melt forms a continuous dense tubular coating around the core line. In order to ensure that the plastic flow channel inside the head is reasonable, the dead corner of the accumulated plastic is eliminated, and a shunt sleeve is often placed. In order to eliminate the pressure fluctuation when the plastic is extruded, there is also a uniform pressure ring. The head is also equipped with a device for mold correction and adjustment, which facilitates the adjustment and correction of the concentric degree of the mold core and sleeve.
The pellet extruder divides the head into an angled head(120 O angle) and a right-angled head according to the direction of the head material flow and the angle of the screw center line. The shell of the head is bolted to the body. The mold in the head has a mold core and is fixed with a nut on the head inlet port. The mold core is equipped with a mold core in front of the mold core and the center of the mold core. Holes are used to pass through the core line; The front part of the nose is equipped with a uniform pressure ring for balancing the pressure; The extrusion molding part is composed of a die holder and a die sleeve. The position of the die sleeve can be adjusted by bolts through support to adjust the relative position of the die sleeve to the die core, so as to facilitate the adjustment of the uniformity of the extrusion envelope thickness. The head is equipped with a heating device and a temperature measuring device.
2. The function of the drive system of the projectile machine is to drive the screw and supply the torque and speed required by the screw during the extrusion process, usually consisting of an electric motor, a reducer, and a bearing.
3. Heating and cooling of the heating cooling device is a necessary condition for the plastic extrusion process to proceed.
Now the extruder usually uses electric heating, which is divided into resistance heating and induction heating. The heating sheet is installed in various parts of the fuselage, neck, and nose. The heating device is heated by the plastic inside the external heating cylinder to reach the temperature required for the process operation.
The cooling device is set up to ensure that the plastic is in the temperature range required by the process. Specifically, in order to eliminate the excess heat generated by the shear friction of the screw rotation, in order to avoid high temperatures that make it difficult for the plastic to decompose, scorch or stereotype. The barrel cooling is divided into two types: water cooling and air cooling. Generally, the small and medium-sized extruder is suitable for air cooling, while the large one is mostly water cooling or two forms of combined cooling; Screw cooling mainly uses central water cooling, the purpose is to increase the material solid transport rate, stabilize the amount of glue, and improve the product quality; However, the cooling at the hopper is to strengthen the transport of solid materials, prevent the plastic particles from becoming sticky and blocking the material mouth due to warming, and ensure that the transmission part works normally.
友情链接:9号棋牌  博九棋牌  W彩票官网  W彩票官网  9号棋牌游戏  W彩票官网  博九棋牌APP  

免责声明: 本站资料及图片来源互联网文章,本网不承担任何由内容信息所引起的争议和法律责任。所有作品版权归原创作者所有,与本站立场无关,如用户分享不慎侵犯了您的权益,请联系我们告知,我们将做删除处理!