Technical application and working principle of the

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The technical application and working principle of automatic packaging machine (Part I)

the automation level is constantly improving in the manufacturing industry, and the scope of application is expanding. Automation in the packaging industry is changing the action mode of the packaging process and the processing method of packaging containers and materials in the field of Pingmei Shenma fali new materials. The packaging system with automatic control can greatly improve production efficiency and product quality, significantly eliminate the errors caused by packaging processes and printing labels, effectively reduce the labor intensity of workers and reduce the consumption of energy and resources

first, the role of automatic packaging

automation with the revolutionary significance of multi-level sealing is changing the manufacturing method of packaging and the transmission mode of products. The automatic control packaging system designed and installed plays a very obvious role not only in improving product quality and production efficiency, but also in eliminating processing errors and reducing labor intensity. Especially for food, beverage, medicine, electronics and other industries, it is of great importance. The technology of automatic device and system engineering is being further deepened and widely used

robotics has changed the coexistence of man and machine. The key of automatic packaging is to design a structural scheme that can realize automatic control according to the production processing or packaging process. Obviously, the choice of automatic device (manipulator or robot) depends on the needs and characteristics of this process. By definition, an automatic device is a machine or mechanism that can complete tasks through automatic control or remote control. It can be simple, for example, a single axis pneumatic pressure linkage moving from one position to another; It can also be complex, for example, a dynamic surgical robot with a six axis structure. The selection of various projects in the packaging process and various industrial automation institutions can enable each design scheme to complete a task within the space of a specific workplace

at present, the structural types of automatic devices are diverse. For example, it can meet the needs of a specific operation. The structural characteristics of industrial robots are between single axis and six axis. According to the performance of this shaft structure, the manipulator "arm" is designed to operate an end manipulator or arm end tool under the motion controllable program. The number of axes represents the "degrees of freedom" of the manipulator. In addition, there is an auxiliary arm. For example, the shaft of the conveyor belt, etc., but they are usually not mechanically connected with the main arm of the manipulator. For different manipulator forms, they are generally classified according to the coordinate system composed of its "X", "Y" and "Z" axes. Most machines belong to the following five basic types ~: Cartesian or rectangular coordinate system, cylindrical coordinate system, rotating or hinged coordinate system, spherical or polar coordinate system and flexible combined manipulator (SCARA)

II. External equipment with automatic function

a complete automation structure scheme is composed of many parts, among which the end arm operation tool, material conveying device and identification/verification system are the main components

1. Arm end operating tool

manipulator is a tool that moves from one position to another by using a device connected to its end. The arm end operating tool, namely the end manipulator, is a component used to grasp the product, move directionally and feel the performance parameters. In packaging applications, the end manipulator is usually designed as a vacuum sleeve, clamping claw or a combination of the two that can be used directly. Their structural schemes can range from a single vacuum sleeve to a series of vacuum sleeves or the arrangement structure of clamping claws

2. Material conveying device

material conveying and processing device is some types of equipment required for automatic movement during product conveying, storage, transportation and control in the process of transmission and manufacturing. Including power conveyor belt, monorail crane, automatic guided vehicle and manipulator. In the packaging process, it is necessary to consider the main structure of the plastic testing machine and consider the factors of material transportation and processing: product shape, weight and material properties; Z - perimeter length of corrugated box (CM); Transportation speed, distance and direction of products during transportation, packaging and loading; The level of control required to connect with other devices and the flexibility to allow the re formation of components if necessary. A typical material transportation and processing system includes: belt input conveyor, labeling machine, bar code reader, automatic device and output conveyor. A user graphical interface provides an easy-to-use platform for depicting the form of pallet stacking. According to the number of workpieces produced, the manipulator grabs, moves and places (stacks) each packaging container (box, box, barrel and can, etc.) on the correct pallet position

3. Identification and verification system

the ability to identify, verify and accurately track products has become an indispensable part of the whole packaging system. Identification methods can use traditional bar codes to radio frequency (RF) sensors, which can track pallets or all products. Online barcode printing and verification are also necessary. Vision technology, which can provide effective and reliable means to ensure product quality, can be used in many occasions of packaging, such as product detection and orientation, filling level and counting, optical labeling, character recognition, labeling document verification, labeling records, and verification of all words and graphics (leaving the production line), etc. The bar code system identifies products through the product type, date/area code and the manufacturer's pre press or online printing process. Barcode scanner and video recognition system record and verify product labels to ensure the integrity of recognition. A typical visual bar code detection capability can confirm that each bar code corresponds to each product

(to be continued)

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