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毕业设计-塑料瓶自动封口机，共27页，11825字，附有autocad设计图纸、solidworks三维设计图纸。
技术参数：
1．容器口径：30mm
2．容器高度：100-150mm
3．灌装要求：100瓶/分钟
设计的内容：
根据技术参数设计传动装置、封口装置、封口膜退绕卷取装置以及切膜装置等，选择合适的电动机设计侧面传动部件，并计算所需的其他部件并校核是否满足工作要求。按工作准确性和合理性、稳定性、高效性设计刀架部件和刀片形状。用CAD软件绘制封口机的工程图。

摘要
塑料瓶自动封口机是一台用于饮料或化工产品的塑料瓶自动封口设备，包括输送装置，封口装置，封口膜退绕卷取装置以及切膜装置。塑料瓶置于传送带上，输送带通过伺服电动机控制塑料瓶在封口工位、切膜工位停止；封口装置采用气缸控制，热封口器采用采用发热管进行加热，通过温控开关进行温度控制，通过热封口板与瓶口的压合进行热封。封口膜退绕卷取装置包括封口膜退绕装置和封口膜卷取装置，封口膜退绕装置通过滚动轴承固定在机架上，封口膜卷取装置通过步进电机和同步带轮，通过步进电机控制封口膜有时序的转停进行退绕卷取动作，即在进行切膜、封口工序是停止转动，在该工序的间隔时间进行退绕卷操作，从而保证进行切膜、封口工序时热封口膜处于正确位置；切膜装置采用热切膜，有电能进行加热，温度控制器进行温度控制，将热封膜进行切割。
工作时，当塑料瓶进入工作空间后，塑料瓶在传送皮带摩擦力的作用下前进。当塑料瓶输送到至封口工位时，伺服电机将停止转动，塑料瓶停在封口工序位，封口装置进行完封口工序以后，伺服电动机将继续转动，将塑料瓶传动到切膜工序位置，伺服电动机停止转动，气缸控制切膜压板下压，进行切膜工序，切膜完成以后，伺服电动机控制传送带继续转动，将塑料瓶输送到下一工序，同时，封口膜退绕卷取装在步进电机控制下进行退绕转运动，退绕到指定位置以后，伺服电动机停止。
该塑料瓶自动封口机方案，封口平稳、经济、快速。这次设计的塑料瓶自动封口机，可以应用于工厂流水线进行大规模的生产，提高工厂的生产效率。
关键词：封口机；切膜；热封口
Abstract
Plastic bottle automatic sealing machine is a for drinks or chemical products of plastic bottle automatic sealing equipment, which comprises a conveying device, sealing device, sealing film unwinding coiling device and film cutting device. Plastic bottle is arranged in the transmission belt, conveyor belt through the servo motor control plastic bottles in the sealing station, cutting film station stop; sealing device is controlled by an air cylinder, heat sealing mouthparts using heating tube heating, through the temperature control switch for temperature control. Through the thermal sealing pressure plate and the bottle is heat sealed. Can turn into the sealing film unwinding coiler device comprises a sealing film unwinding device and a sealing film coiling device, sealing film unwinding device through the rolling bearing is fixed on the machine frame, sealing film coiling device through the stepper motor and the synchronous belt wheel, the motor control sealing film sequence stop unwinding coiler action, namely the cutting film, sealing process is to stop rotation, in the process of interval unwinding roll operation, so as to ensure the cutting film, sealing process heat sealing film is in the correct position, cutting film device with eager film, electric heating, temperature controller temperature control, heat sealing film cutting.
When working, when plastic bottles into the working space, the plastic bottle forward on the conveyor belt under the action of friction force. When the plastic bottle conveying to the sealing station, servo motor will stop running, plastic bottle stopped in the sealing process a, sealing device after sealing process later, servo motor will continue to rotate, plastic bottle drive to cut position of membrane process, servo motor to stop rotating, gas cylinder control film clips, under pressure, cutting process film, cut after the completion of the film, the servo motor control conveyor belt to rotate, the plastic bottles will be transported to the next process. At the same time, sealing film unwinding roll device in the stepper motor control of unwinding rotary motion, unwinding in the specified location, servo motor stop.
The plastic bottle automatic sealing machine, sealing, stable, rapid economic. Automatic sealing machine for the design of the plastic bottles can be used in the factory assembly line of large-scale production, improve the production efficiency of the factory.
Keywords: Sealing machine;?cutting film;?heat?sealing
目录
摘要 I
Abstract II
目录 1
第一章 绪论 2
1.1 塑料瓶自动封口机课题背景 2
1.2 塑料瓶自动封口机的作用 2
1.3 封口机械的发展状况 3
1.3.1 国外封口机械的发展状况 3
1.3.2 国内封口机械的发展状况 3
第二章 总体方案的设计 5
2.1 毕业设计任务书及设计参数 5
2.1.1 技术参数 5
2.1.2 设计目的 5
2.1.3 设计的内容 5
2.1.4 设计任务 5
2.1.5 基本要求 5
2.2各装置方案的确定 6
2.2.1 驱动装置方案 6
2.2.2封口装置 6
2.2.3封口膜退绕卷取装置 7
2.2.3切膜装置 8
第三章 电机的选择 9
3.1 电动机的选取 9
第四章 工作能力分析计算 12
4.1 键的设计及强度校核 12
4.2 轴的设计及强度校核 12
4.3 轴承的选择及校核 16
参考文献 18
致 谢 19