Analysis of automatic packaging machine

Brief analysis of automatic packaging machine

the automation level is constantly improving in the manufacturing industry, and the scope of application is expanding. Automatic operation in the packaging industry is changing the action mode of the packaging process and the processing method of packaging containers and 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

revolutionary automation 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 life-long warranty of human-machine coexistence equipment. 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 is designed to operate an end manipulator or arm under the motion controllable program. The experimental method is also relatively single end tool. The number of axes represents the degree 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, the factors that need to be considered for material transportation and processing include: product shape, weight and material properties; 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. Visiontechnology, which can provide effective and reliable means to ensure the quality of products, can be used in many occasions of packaging, such as product testing and determination, data interpretation, basic information, basic information, etc? 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

Third, the process of automatic packaging

the first and most important step in realizing packaging automation is to define the process. A high-quality work project determines the final design scheme according to the characteristics of the process rather than the automation equipment. When defining this process, three key factors need to be considered are product and packaging structure, total production volume and labor force

1. Product/packaging structural form

the structural design of product/packaging directly affects the required automatic operators and the form of material transportation and processing. The structural size, shape, material and weight of the product/package will determine the structural design scheme of the end operator and the need for the automaton to be included in the payload. The structural design of packages with complex shape features, such as elliptical packaging containers, has more difficult orientation problems than standard circular or square packaging. The directional requirements that increase the complexity of the system should be carefully studied and analyzed before processing implementation. In the case of filling boxes, the automatic manipulator at the end of the manipulator generally provides a process, that is, it can grasp a sufficient amount of products and fill a complete box at one time. In this way, the moving distance of the automatic operator is reduced as far as possible and the products on the conveyor belt or production line are kept moving continuously

2. Product production throughput

the main driving force for promoting packaging automation design is that the total throughput of product production 1 is used solely for hardness measurement. The faster the speed of the production line, the application of automatic grippers and sorting devices will help to reduce the workload of the automaton, while the standard automaton following the package may be less. The speed of the production line not only affects the automatic device for processing products, but also affects the labeling operation and visual inspection. In order to achieve effective visual detection technology, several related issues must be indicated. It includes: Part graphics consistency, detection repeatability, transmission speed consistency (such as the fluctuation of the production line), the number of tests to be completed and appropriate software programs. These factors prominently affect the form and cost of a visual system. According to the general rule, the more the number of detection is, the faster the video will run, which will lead to more complex and expensive structural solutions. When the video device is combined with the automatic mechanism, the whole automatic device can realize the orientation and display of the package in a continuous, consistent and repeatable way

3. Labor or human factors

the operation of automatic packaging equipment is the result of continuous and effective cooperation, exchange and interaction between management, engineering and production departments. All relevant personnel and technical departments must gather in a closely united collective, which acts together according to the formulated work process one by one, taking the same goal as the driving force and strategically reflecting a kind of cohesion

IV. project management of automatic system

as mentioned above, the best automation structure scheme is always based on the complete process of good design. This requires a project with a certain level of management, which ensures that all relevant issues have entered the final design. When developing an automation scheme, we must first establish a team. This team shall include representatives of all departments in the packaging process, including procurement, investment, quality assurance, engineering, production, logistics, health care, safety, management and system coordination with the seller. Internal and external users must form partnerships. For example, the coordination manager of the system must become a member of the collective. The Seller shall become an integral part of the packaging quality management process. In this way, everyone has clear requirements, can follow them, and can evaluate and correct irregularities. The second is to formulate the specifications and requirements of the packaging system. These components develop into a major framework for detailed system design. The best way is to work with the seller to create a functional design specification that meets the requirements of both the company and the seller. The specification should specify the indicators of items such as operation speed and detection method, but it is not a specific hardware or software model that can be achieved. Input information without the participation of experts or coordinators may lead to excessive norms and restrict design innovation and technological development. A good specification will enable a process and project to have a clear expression and understanding of its objectives, and can be used as the beginning of an effective packaging process

the system specification provides a system framework for programmatic development. Scheme design, or preliminary design or preliminary scheme, is used to explain how the packaging process or system will solve the specific provisions and requirements in the project specification. Scheme design is often the joint work between the manufacturer and the automatic line seller. Its content is multifaceted, ranging from simple two-dimensional graphics to three-dimensional graphics of the main body