Weighing and packing machine is an automated mechanical equipment that integrates weighing and packing functions, widely used in many industries such as chemical, grain, feed, building materials, etc. The following is a detailed introduction about the weighing and packaging machine:

Structural composition

Weighing system:

Weighing sensor: This is the core component of the weighing system, usually installed under the scale body or other critical support parts. The principle is to use the relationship between pressure and gravity. When the material is placed on the scale, the sensor will generate an electrical signal corresponding to the weight. Common weighing sensors include resistance strain gauges, capacitance sensors, etc. They have the characteristics of high accuracy and sensitivity, and can accurately measure the weight of materials.

Weighing instrument: receives electrical signals from weighing sensors and converts them into readable weight data for display. At the same time, the weighing instrument can also be connected to the control system to perform control operations based on the preset weight value. It has multiple functions, such as peeling, resetting, calibration, etc., to ensure the accuracy of weighing.

Scale body: used to carry the material to be weighed, its structural design should ensure that the material can be evenly distributed, making the weighing result more accurate. The material and size of the scale body vary depending on different application scenarios and weighing ranges.

Packaging system:

Feeding device: responsible for conveying materials to the scale body for weighing. According to the characteristics of the material, there are various forms of feeding devices. For example, for powdered materials, a spiral feeder may be used, which pushes the material to the weighing area through the rotation of the spiral blades; For granular materials, a vibrating feeder is a common choice, which uses vibration to make the material flow evenly towards the scale body.

The main body of the packaging machine includes functional components such as sealing and bundling. When the material reaches the preset weight, it will be transported to the main body of the packaging machine. For different types of packaging materials, such as woven bags, plastic bags, etc., the sealing method also varies. For example, for woven bags, heat sealing may be used for sealing, while for plastic bags, heat sealing or pressure sealing methods can be used. The bundling part usually uses materials such as steel strips and plastic strips, and the packaged materials are fastened by a bundling machine to prevent material leakage.

Conveyor device: During the weighing and packaging process, the conveyor device is used to transfer materials between various links. It can be a belt conveyor, chain conveyor, etc., to ensure the smooth flow of materials throughout the entire system.

working principle:

Firstly, the material is conveyed to the scale body of the weighing system through the feeding device. The weighing sensor measures the weight of the material in real time and transmits the signal to the weighing instrument. When the weight of the material reaches the preset value, the control system will issue a command to stop feeding.

Next, the weighed material is transported to the main body of the packaging machine through the conveying device. In the main body of the packaging machine, the materials are sealed and tied according to the packaging requirements to complete the packaging process. The entire process can be operated continuously and efficiently through an automated control system.

characteristic:

High degree of automation: capable of automatically completing weighing and packaging operations, reducing manual intervention and improving work efficiency and accuracy. By presetting parameters, batch and continuous production operations can be achieved, suitable for large-scale industrial production environments.

High weighing accuracy: By using high-precision weighing sensors and advanced weighing algorithms, the weight of materials can be accurately measured, ensuring the consistency of the weight of packaged products. This is particularly important for industries that require strict control of product weight, such as quantitatively packaged food, pharmaceuticals, etc.

Strong adaptability: It can be adjusted and configured according to different material characteristics (such as powder, particle, block, etc.) and packaging requirements (such as packaging materials, packaging weight, sealing methods, etc.). For example, for powder materials that are prone to flying, a sealed feeding and weighing environment can be used; For different packaging sizes and weight ranges, it is also possible to adapt by replacing relevant components or adjusting parameters.

Improving production safety: reducing manual direct contact with materials and dangerous links in the packaging process, and lowering the probability of work-related accidents. At the same time, some advanced weighing and packaging machines are also equipped with fault alarm and safety protection functions, such as overload protection, material blockage alarm, etc., to ensure the safe operation of the equipment.

Application areas:

Grain industry: used for quantitative weighing and packaging of grains such as wheat, rice, corn, etc., for easy storage and transportation.

Feed industry: Various feed raw materials and finished feed products need to be packaged according to certain weight specifications. Weighing and packaging machines can ensure accurate weight of each bag of feed, meeting the requirements of market sales and breeding use.

Chemical industry: Chemical products such as fertilizers, plastic pellets, powdered chemicals, etc. are packaged using weighing and packaging machines, which is beneficial for product measurement and management, while also ensuring the sealing and safety of the packaging.

Building materials industry: Cement, sand and other building materials can also be packaged using weighing and packaging machines, which is convenient for use on construction sites and also facilitates product sales and circulation.