基于HDPEPVC 塑料管材无屑切割机结构设计

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摘 要
通过对国内外塑料管材机械生产线的研究分析，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，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，带传动机构、夹紧机构、切割机构、切屑工作台移动导
轨、机架设计。

关键词: 塑料管材；切割机；无屑式
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Abstract
Through to the domestic and foreign plastics tubing mechanical production line
research analysis, had determined the non- filings cutter does for this topic main design
content. The non-filings cutter uses in the plastic tubing to decide long cuts, in cuts
process rack from the movingplation to be allowed to squeeze out the traverse along the
tubing, and the maintenance and tubing synchronization enters for the speed. Is loaded
with in the cutter front part holds a turn of equipment, holds the wheel to play the strut
and the guidance role, in view of different caliber when must give to adjust. After turns
material on the limit switch or the encoder sends out cuts the signal, machine clamp
clamps the control equipment firm tubing, causes the tubing in to cut in the process to be
relatively fixed, the clamp for clamps block Haff to clamp, when cuts the different
specification the tubing, exchanges Haff block which corresponds.
Cuts the working order the realization by the electrical machinery through V belt
transmission, but the bit cutting for slowly pushes by the cylinder piston rod then carries
on, the air cylinder thrust for cesize may by the air cylinder regulating valve adjustment.
The bit non-filings cut for by move, casing of axis which the shifting plate and about
movingplation completes by bearing supporting and localization, therefore the center of
rotation invariablely causes the cutter to cut the tubing end surface to be smooth, size
standard. Bit the depth guides nearby the pole by the air cylinder the spacing adjustment
lead screw regulating control. The different specification thickness tubing, adjusts the
lead screw the adjustment quantity size to be different.
In the design process has consulted the massive domestic and foreign correlation
data, does the design utilization studies all specialized curricula. As follows main
elaboration plastic tubing non- filings cutter overall structural design.
The cutter design mainly includes, brings the transmission system, to cut the
organization, to clamp the organization, Cutting- filings the work table moves the guide
rail, the rack design.

keywords: Plastic tubing Cutter Non- filings type
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目 录
1 绪论 ...................................................................... 1
1.1 引言及HDPE/PVC简介 ................................................... 1
1.2 塑料管材生产线工作流程简介 ............................................ 2
1.2.1 塑料管材生产线结构组成（本文仅以PVC 波纹管为例） .................. 2
1.2.2 塑料管材生产过程 ................................................... 2
1.3 PVC 管材生产线特点 .................................................... 3
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 ............................................................ 6
2.1 V 带机构设计 .......................................................... 6
2.1.1 V 带的选择 .......................................................... 6
2.1.2 带传动的分类（根据截面形状不同）和性能比较 .......................... 6
2.2 V 带传动的设计计算 .................................................... 7
2.3 带轮结构设计 ......................................................... 10
2.3.1 V 带轮的设计要求： ................................................ 10
2.3.2 带轮材料的选用 .................................................... 10
2.3.3结构尺寸的设计 .................................................... 10
2.3.4 带轮的轮槽尺寸 .................................................... 11
2.3.5 带传动的弹性滑动与打滑 ............................................ 12
3 夹紧机构设计 ............................................................. 14
3.1 夹紧装置组成部件 ..................................................... 14
3.2 夹紧块材料的选择 ..................................................... 14
3.3 托轮装置 ............................................................. 15
3.3.1组成部件 .......................................................... 15
3.3.2托滚材料的特殊选择 ................................................ 15
4 切割机构设计 ............................................................. 16
4.1 切割机构概要 ......................................................... 16
4.1.1切割部件的组成 .................................................... 16
4.1.2 工作原理 .......................................................... 16
4.2 传动旋转装置的设计 ................................................... 16
4.2.1旋转部件 .......................................................... 16
4.2.2 传动体的尺寸计算 .................................................. 16