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1、毕业设计(论文)基于 HDPE/PVC 塑料管材无屑切割机结构设计Plastic pipe cutting machine design without chip based on HDPE/PVC摘要通过对国内外塑料管材机械生产线的研究分析，并结合实习工作公司的实际情况，确 定了无屑切割机做为本课题的主要设计内容。无屑切割机用于塑料管材的定长切割，在切 割过程中机架上的移动台可以沿着管材挤出方向移动，并保持与管材的同步进给速度。在 切割机的前部装有托轮装置，托轮起到支撑和导向的作用，针对不同管径时要予以调节。 当翻料架上的行程开关或编码器发出切割信号后，机器夹紧装置上的夹紧控制装置夹牢管 材
2、，使管材在切割过程中相对固定，夹紧装置为夹紧块哈夫夹紧，在切割不同规格的管材 时，调换相对应的哈夫块。切割工作指令的实现由电机通过 V 带传动，而刀片的切削进给由气缸活塞杆缓缓推进 而进行的，气缸推力的大小可由气缸的调节阀调节。刀片的无屑切割进给由移动盘和左右 移动架来完成的，其中筒轴由轴承支承和定位，所以旋转中心不变使切割机切割管材端面 平整，尺寸规范。进刀深度由气缸导向杆旁边的限位调节丝杆调节控制。不同规格的厚度 管材，调节丝杆的调节量大小不同。设计过程中查阅了大量国内外的相关资料，所做的设计运用所学的所有专业课程。下文主要阐述塑料管材无屑切割机总体结构设计。 切割机设计主要包括，带传动机
3、构、切割机构、夹紧机构、切屑工作台移动导轨、机架设计。由于本人时间和知识面有限不可能做的很全面，文中错误难免，望老师指正。关键词: 塑料管材；切割机；无屑式IIAbstractThrough to the domestic and foreign plastics tubing mechanicalproduction line research analysis, and the union practice workcompanys actual situation, had determined the non- filings cutterdoes for this topic mai
4、n design content. The non- filings cutter usesin the plastic tubing to decide long cuts, in cuts process rack from the movingplation to be allowed to squeeze out the traverse along thetubing, and the maintenance and tubing synchronization enters for thespeed. Is loaded with in the cutter front part
5、holds a turn ofequipment, holds the wheel to play the strut and the guidance role, inview of different caliber when must give to adjust. After turnsmaterial on the limit switch or the encoder sends out cuts the signal,machine clamp clamps the control equipment firm tubing, causes thetubing in to cut
6、 in the process to be relatively fixed, the clamp forclamps block Haff to clamp, when cuts the different specification thetubing, exchanges Haff block which corresponds.Cuts the working order the realization by the electrical machinerythrough V belt transmission, but the bit cutting for slowly pushe
7、s bythe cylinder piston rod then carries on, the air cylinder thrust forcesize may by the air cylinder regulating valve adjustment. The bit non-filings cut for by move, casing of axis which the shifting plate andabout movingplation completes by bearing supporting and localization,therefore the cente
8、r of rotation invariablely causes the cutter to cutthe tubing end surface to be smooth, size standard. Bit the depthguides nearby the pole by the air cylinder the spacing adjustment leadscrew regulating control. The different specification thicknesstubing, adjusts the lead screw the adjustment quant
9、ity size to bedifferent.In the design process has consulted the massive domestic and foreigncorrelation data, does the design utilization studies all specializedcurricula. As follows main elaboration plastic tubing non- filingscutter overall structural design.The cutter design mainly includes, bring
10、s the transmission system, tocut the organization, to clamp the organization, Cutting- filings the work tablemoves the guide rail, the rack design.Because myself time and the aspect of knowledge limited are impossibleto do very comprehensively, in the article wrong is unavoidable, looksteacher to po
11、int out mistakes.keywords: Plastic tubing Cutter Non- filings typeIII目录1 绪论.1 1.1 引言 .1 1.2 塑料管材生产线工作流程简介.1 1.2.1 塑料管材生产线结构组成（本文仅以 PVC 波纹管为例） .1 1.2.2 塑料管材生产过程 .2 1.3 PVC 管材生产线特点 .2 1.4 设计方案的选择比较 .3 1.5 设计方案综述 .4 2 带传动机构设计.5 2.1 V 带机构设计.5 2.1.1 V 带的选择 .5 2.1.2 带传动的分类（根据截面形状不同）和性能比较 .5 2.2V 带传动的设计计算 .6 2.3 带轮结构设计 .9 2.3.1V 带轮的设计要求：.9 2.3.2 带轮材料的选用 .9 2.3.3 结构尺寸的设计 . 102.3.4 带轮的轮槽尺寸 . 103 夹紧机构设计. 133.1 夹紧装置组成部件 . 133.2 夹紧块材料的选择 . 133.3 托轮装置 . 143.3.1 组成部件件 .
