自动制袋装填颗粒包装机的设计

摘要

本论文是关于小颗粒食品的包装设备简称颗粒包装机的设计。颗粒包装机是将小颗粒的食品装入袋内，再封装。主要适用于小食品、医药产品的包装。它具有操作简单、生产量大、适用范围广等特点。

颗粒包装机主要由几部分构成：引导成型部分、喂料部分、纵封牵引部分横封切割部分。塑料薄膜安装在退卷装置上，经过导辊的引导输送塑料薄膜在成型器的作用下形成袋状，这时纵封将袋封上纵向口，喂料装置下料，横封辊在将其封住横向开口，并且切断。至此一个包装袋形成。

本文从基本理论、基本工作原理、基本分析方法上对设计作了阐述。在本次设计中采用了象鼻成型器，转盘式定量供料器，滚轮纵封装置，整体加工式横封辊结构。

滚轮纵封装置将以往的纵封和牵引合为一体，这样既节省了空间，又使整体更具有美观性。整体加工式横封辊结构将横封和切断装置合成一体，减少了封装时间。

最后一个重要的部分是UG的建模、装配。Unigraphics(简称UG)是当前世界上最先进和紧密集成的、面向制造行业的CAID/CAD/CAE/CAM高端软件。作为一个集成的全面产品工程解决方案，UG软件家族使得用户能够数字化地创建和获取三维产品定义。UG软件被当今许多世界领先的制造商用来从事概念设计、工业设计、详细的机械设计以及更成仿真和数字化的制造等各个领域。

本文详细介绍了轴的建模、齿轮的建模，以及其装配和动态仿真。

关键字：颗粒包装机；纵封；横封；UG装配

I

Abstract

This paper is about the design of the packing equipments with small grain food which is call for grain packer. the grain packer is to pack the food of the small grain into the bag inside, then seal the bag. It is applicable to the packing of small food, medicine product primarily. It has the operation simple、produce have great capacity、apply wide etc. in scope characteristics.

The grain packer is main from several parts of composingses: the part of the leading models and the part of feeding machine device, the part which vertical-seal and draught, and the part which horizontal-seal and cut down. The plastics thin film installs at equipment for withdraw the film, hasing been led the leading roller to molding machine, with which the film is form pockety, at this time vertical-seal seal the vertical caliber, feeding machine put the feed into the pockety, horizontal-seal seal the horizontal caliber, and cut off. Thus pockety is done.

This paper makes to expatiate to the design from the basic theories, basic work principle, basic analysis method. Vertical-seal rolling device will be former seals with lead to match for integral whole, thus this device saved the space, and make the whole even have the beautiful again. Integer machining type horizontal-seal make the whole horizontal seal with the cut-off device synthesize the integral whole, reducing sealing-pack time.

The last important part really is an UG to set up the molding and assemble. The Unigraphics (brief name UG) is current to enter first in the world with close gather of, face to the CAID/CAD/CAE/CAM that make the profession the high carrying the software. Be used Be used as a gathers of completely product engineering solution, the UG software household makes customer can the arithmetic figure turn the ground creates to set up with obtain three dimension product definition.

This paper is detailed to introduced to set up axially the mold, wheel gear sets up the mold, and its assemble really imitate with the development.

Key word: The grain packer, vertical-seals, horizontal-seal, UG assemble

II

目录

摘要 .................................................................................................................. - 1 -Abstract ..................................................................................................................... - 2 -第1章概述 ............................................................................................................ - 1 -第2章方案设计及选择 ........................................................................................ - 2 -

2.1 卧式间歇制袋三边封口包装机 ................................................................. - 2 -

2.2横枕式自动制袋装填包装机 (3)

2.3立式间歇制袋中缝封口包装机 (3)

2.4立式双卷膜制袋和单卷膜等切对合成型制袋四边封口包装机 (4)

2.5立式连续制袋三边封口包装机 (4)

第3章机械部分设计 ............................................................................................ - 8 - 3.1 成型器的选择和设计计算 ........................................................................... - 8 -

3.1.1 翻领成型器 ............................................................................................ - 8 -

3.1.2 象鼻成型器的设计 ................................................................................ - 9 - 3.2 传动系统方案设计 ..................................................................................... - 11 - 3.3 动力及运动参数计算 ................................................................................. - 12 -

3.3.1 主电机的确定 ...................................................................................... - 12 -

3.3.2 主轴转速计算 ...................................................................................... - 12 -

3.3.3 主轴功率计算 ...................................................................................... - 14 -

3.3.4 主轴最小直径估算 .............................................................................. - 14 - 3.4 热封设计 ..................................................................................................... - 15 -

3.4.1 纵封滚轮的设计及计算 ...................................................................... - 15 -

3.4.2 横封装置设计 ...................................................................................... - 17 - 3.5 封合调整 ..................................................................................................... - 19 - 3.6 引导装置 ..................................................................................................... - 24 - 第4章UG部分设计 ........................................................................................... - 25 - 4.1 建模 ............................................................................................................. - 25 -

4.1.1 轴的建模 .............................................................................................. - 25 -

IV

4.1.2 齿轮的建模： ...................................................................................... - 26 - 4.2 装配 ............................................................................................................. - 31 -

4.2.1 基本概念 .............................................................................................. - 31 -

4.2.2 装配的方式 .......................................................................................... - 31 -

4.2.3 装配模块的启动 .................................................................................. - 31 - 参考资料 (35)

毕业设计总结 (36)

致谢 (37)

V

第1章概述

完成包装工序的机械通称为包装机械。包装机械以中小型单机为主，具有体积小、精密度高、易安装、操作方便、自动化程度高等优点。包装机械的范畴广泛，种类繁多。

包装是产品进入流通领域的必要条件，而实现包装的主要手段是使用包装机械。随着时代的发展和技术的进步，包装机械在流通领域中正起着越来越大的作用。而颗粒包装机的设计意义在于使小颗粒物品易于携带方便，且外形美观。

我们设计的是一个自动制袋装填包装机,通常自动制袋装填包装机所采用的包装材料是卷筒式包装材料,在机器上实现自动制袋、装填封口切断等全部包装工序.其包装材料可以为塑料单膜复合薄膜等.对于不同的机型,可以采用单卷薄膜制袋或两卷薄膜制袋的形式,但主要以前者居多。

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第2章方案设计及选择

2.1 卧式间歇制袋三边封口包装机

图2－1 卧式间歇制袋三边封口包装原理

1－卷筒薄膜2－导辊3－成型器4－导杆5－张口器6－横封器7－加料器8－纵封牵引器9－分切刀10－成品袋

此类机型的包装原理如图2-1 所示。卷筒塑料薄膜1经导辊2引入成型器3，在成型器3及导杆4的作用下形成U形并由张口器5撑开。当加料器7下行进入加料位置时，横封器6闭合，同时装填物料；随后，横封器6和加料器7复位；紧接着，纵封器8闭合热封并牵引薄膜移动一个袋位；最后由切刀9把包装袋切断。

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