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摘要

本次课题设计的是自动折盖封箱机，采用两侧摩擦带驱动来进行封箱的方案，上封箱、经济、快速、平稳。这次设计的自动折盖封箱机，可以根据纸箱规格，通过感应装置调节宽度及高度，可单机作业，也可与自动化包装流水线配套使用。工作时，把纸箱从机台输入端推入（箱子顶部的封口盖须竖起），被输送带带动时松开手，当纸箱碰到后折盖控制开关时，气缸活塞伸出，推动后折盖板升起，当纸箱完全经过后折盖控制开关时，后折盖控制开关复位，此时气缸活塞收缩，后折盖板落下，压住纸箱后盖，纸箱两侧盖在摆杆作用下完成侧盖折盖动作，即可完成折盖封箱目的。折盖顺序为：前盖、后盖、左右侧盖。当箱体运行至刀架位置时，箱体将刀架和前胶带压轮压退位，而后胶带压轮在四杆机构的作用下与前胶带压轮保持同步运动而退位，并使前面的胶带与纸箱贴合并封箱。随着箱体前进，胶带不断地抽出封在箱体上。当箱体的后部离开刀架时，前胶带压轮由于四杆机构的作用与后胶带压轮的运动一致，而刀架受弹簧弹力作用，复位弹起，切断胶带。当箱体运动至离开后胶带压轮时，后胶带压轮也由于受可调弹簧回位作用而复位，使连在箱体上最后的胶带也贴在箱体上，完成后段封箱任务。该论文详细说明了本次封箱机设计的步骤及其依据。包括设计方案的选择、电机的选择、工作台部件的设计、折盖封箱部件、顶式部件设计和刀片的设计。

关键词：封箱机；四杆机构；工作台部件；刀架部件；刀片设计；折盖封箱部件；折盖顺序

Abstract

This topic is the design of case erector, using both sides of friction tape drive to seal box scheme, sealing, economic, fast, stable. The design of the automatic folding cover sealing machine, can according to the carton size, adjust the width and height by induction device, stand-alone operations, also with the use of automated packaging lines matching. When working, the carton from machine input into (the top of the box sealing cover should be erected by the conveyer belt drives), when let go, when the carton folding cover after the encounter, control switch, push the cylinder piston out, folded plate rise, when the carton completely after folding cover the control switch, control switch after folding cover reset, the cylinder piston shrinkage, folded plate down, the box cover, box cover on both sides of the swing rod completed under the action of the side cover folding cover action, can complete the folding cover sealing purpose. Fold cover order: front cover, back cover, left and right side cover. When the operation to the rest position, the box will rest and tape pressing wheel pressure to resign, then tape pressure acting on the four bar mechanism with the tape pressing wheel wheel keep synchronous movement to abdicate, and make the tape and cardboard box in front of the paste with sealing. As the body forward, constantly taking tape sealed in the box. When the rear part of the box body left the rest, before the tape pressing wheel due to motion consistent tape pressing wheel four bar mechanism and tool, and acting, spring return bounce, cut off the adhesive tape. When the movement to the left after the tape pressing wheel, tape pressing wheel also due to adjustable spring return and reset, so that even in the case the last tape affixed to the box body, box sealing task completed section. This paper details the steps and the basis of this sealing machine design. Including the choice of design, motor selection, workbench component design, folding cover sealing parts, the top part design and blade design.

Keywords: sealing machine; four bar mechanism; table part; turret components; blade design; bending cover sealing cover folding sequence compon

1．绪论

1.1 课题背景

随着科学技术的不断发展进步，各种食品加工品的出现，对包装技术和包装设备都提出了新的要求，包装机械在流通领域中发挥着越来越大的作用。包装机械竞争日趋激烈，而高度自动化、智能化、多功能、高效率、低消耗的包装设备越来越受到行业的青睐。工艺流程自动化程度越来越高。自动化技术在包装生产线中已占50%以上，大量使用了电脑设计和机电一体化控制，提高生产率、设备的柔性和灵活性，增加机械手以完成复杂的包装动作。每个机械手均由单独的电脑控制，摄像机监控包装动作并将信息反馈到电脑以调整动作幅度，保证包装的质量。不久包装机械即将创新新兴行业。^[1⁹^]