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注塑模具加工驱动的几种方式

来源:    发布时间:2019-04-29 15:32:08    点击:

  注塑模具加工运动的驱动和驱动力(冲压力,模具的锁模力,资料的落锤重,挤压力等)是由成形加工机床和设备的动力经传动机构提供的。
  The driving and driving forces (stamping force, clamping force, drop weight of data, extrusion force, etc.) of the injection mould processing movement are provided by the power transmission mechanism of the forming machine tool and equipment.
  机电驱动:如冲压机、摩擦压力机、辊锻机械等,都是由电动机提供动力和旋转运动,以驱动传动机构,并经过滑块等和模具运动局部停止衔接运动,以驱动模具定向运动,并把传送的驱动力作用于模具,使模具对资料停止成形加工。
  Mechanical and electrical drive: such as punch, friction press, roll forging machinery, etc., are powered and rotated by motors to drive the transmission mechanism, and through slider and die movement, local stop convergence movement, in order to drive the directional movement of the die, and the transmission of driving force on the die, so that the die to stop forming processing of data.
  电液驱动:即经过注塑成型电动机驱动液压泵或水泵产生液压和水压,并经过液体的液压保送和控制系统,产生一定的额定压力来驱动模具的运动局部(如动模)相衔接的液压缸或者活塞,差遣动模相对定模来停止定向平移的运动,再对资料停止进一步紧缩,使资料在停止成形加工后成为制件注塑模具气压成形;主要用于吸塑和吹塑成形加工,即当模具处于固定状态的时分,经气泵使其产生一定的负压将塑料板材直接吸贴于模具型面上,构成制件,吹塑则是经过气泵产生一定气压的气体,吹人热熔态塑件或热熔态玻璃制件毛坯空腔,使其扩展、变形,并贴附在模具型腔外表上,构成制件。
  Electro-hydraulic drive: that is to say, the injection-moulding motor drives the hydraulic pump or water pump to produce hydraulic pressure and water pressure, and through the hydraulic delivery and control system of the liquid, produces a certain rated pressure to drive the hydraulic cylinder or piston connected by the moving parts of the die (such as the moving die), and the differential die is relative to the fixed model to stop the movement of directional translation, and then the data is stopped to further tighten, so as to make the capital available. Material is pneumatic forming of injection moulds after stopping forming processing; mainly used for suction and blow moulding processing, that is, when the moulds are in a fixed state, the plastic sheets are directly sucked onto the surface of the moulds by the negative pressure generated by the air pump to form parts, while blow moulding is a gas which produces a certain pressure through the air pump to blow hot-melt plastic parts or hot-melt glass parts. The blank cavity is expanded and deformed, and attached to the surface of the die cavity to form a part.
  叠层注塑加工模具
  Laminated Injection Mold
  另外,注塑模具加工驱动比如说铝合金的型材,塑料型材、片材或薄膜,普通都采用挤出成形的工艺。其模具固定在机头上,资料以挤压方式经过模具,对模具作相对运动而成的各种制件。如塑料型材是依托不停的挤出机器的螺杆的螺旋运动,将塑料挤入模具并经过模具的型面,经冷却定型成型材。挤出的型材被牵引机构向前牵引,使停止连续成形加工。
  In addition, extrusion process is commonly used to drive injection mold processing, such as aluminium alloy profiles, plastic profiles, sheets or films. The die is fixed on the machine head, and the data are extruded through the die, and the relative movement of the die is made into various parts. For example, plastic profiles rely on the spiral movement of the screw of the continuous extrusion machine to extrude the plastic into the mould and pass through the surface of the mould, and then cool the shaped material. The extruded profile is pulled forward by the traction mechanism to stop the continuous forming process.
                                            山东模具
  模具消费注塑件时产品整体发脆的缘由
  Reasons for the Brittleness of the Product as a Whole when Mold Consumption Injection Molding Parts1.注塑机射出和保压压力缺乏; 2.背压太小、原料不够扎实;3.背压太大,剪切、磨擦热量增加; 4.射速太慢,未充沛结晶;5.模温太高,原料过火、合成、蜕变; 6.模温太低,未充沛结晶;7.射出、保压时间缺乏; 8.注塑机停机时间太长了和注塑周期太长;9.储料时间太长; 10.二级回料在新料里添加比例太多;11.原料强度、韧性不够,粘度不够; 12.添加剂不合理,或添加太多;13.原料未充沛烘干; 14.产品内部构造有些中央太厚,有些中央太薄,不平均,进料中央思索不合理。
  1.注塑机射出和保压压力缺乏; 2.背压太小、原料不够扎实;3.背压太大,剪切、磨擦热量增加; 4.射速太慢,未充沛结晶;5.模温太高,原料过火、合成、蜕变; 6.模温太低,未充沛结晶;7.射出、保压时间缺乏; 8.注塑机停机时间太长了和注塑周期太长;9.储料时间太 Long; 10. The proportion of secondary recycling in new materials is too much; 11. The strength and toughness of raw materials are not enough, and the viscosity is not enough; 12. The additives are unreasonable or too much; 13. The raw materials are not fully dried; 14. The inner structure of products is too thick, some are too thin and uneven, and the central thinking of feeding is unreasonable.
  15.模具进料不平均,冷料井不够; 16.产品壁厚太薄17.注塑机温度时高时低,不稳定; 18.注塑机料管没清算好;19.顶出不合理,塑体应力增加,产生决裂;20.塑料件模具冷却回路没排好。
  15. Inequality of die feeding and inadequate cooling well; 16. Product wall thickness is too thin 17. Injection molding machine temperature is high and low, unstable; 18. Injection molding machine material pipe is not liquidated; 19. unreasonable ejection, plastic body stress increases, resulting in cracks; 20. Plastic parts die cooling circuit is not arranged properly.
 
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