### Overview
The rotary bag - feeding machine with a twin - screw conveyor pump is an advanced combination of packaging equipment, integrating the function of the twin - screw conveyor pump for precise material transportation and the high - efficiency packaging features of the rotary bag - feeding machine. It is widely used in product packaging in multiple industries.
### Working Principle
#### Twin - screw Conveyor Pump Part
The main components of the twin - screw conveyor pump are two screws and a bushing. The two screws are intermeshed. When the motor drives the driving screw to rotate, the synchronous gear drives the driven screw to rotate synchronously. Sealed chambers are formed between the screws and the pump body. The rotation of the screws causes the chambers to move along the axial direction. At the inlet, the volume of the chambers increases due to the rotation of the screws, creating a vacuum to suck in the materials; at the outlet, the volume of the chambers decreases and the materials are extruded. This working mode ensures the continuity and stability of material transportation. The twin - screw conveyor pump also has good self - priming ability and relatively good adaptability to materials containing particles. Moreover, its flow rate is relatively stable, and the flow rate size is affected by factors such as screw rotation speed, pitch, screw diameter, and volumetric efficiency of the pump. The flow rate can be adjusted by precisely controlling the screw rotation speed.
#### Rotary Bag - feeding Machine Part
The rotary bag - feeding machine realizes continuous packaging relying on a rotating workbench. There are multiple workstations on the workbench for placing bags. Initially, the bags are taken out from the bag storage bin by suction cups or mechanical arms and placed at the bag - loading workstation. After the workbench rotates, the bags successively pass through the bag - opening workstation, where the bag mouths are opened by mechanical devices or vacuum suction cups; then they enter the filling workstation, where the twin - screw conveyor pump transports the materials into the bags; after filling, they enter the sealing workstation, and the bag mouths are sealed by means of heat sealing or cold sealing to complete the packaging; finally, the packaged products are sent out at the unloading workstation.
### Features
#### Precise Measurement and Transportation
The flow rate of the twin - screw conveyor pump is directly related to the screw rotation speed. By controlling the screw rotation speed with a servo motor, the material transportation volume can be accurately adjusted. When combined with the rotary bag - feeding machine, it can ensure that the amount of materials in each bag is highly consistent with a small error, which is suitable for packaging products with high requirements for metering accuracy.
The transportation process of the twin - screw conveyor pump is stable. For materials that are sensitive to shearing, such as those containing colloids and emulsions, it can prevent the change of material properties caused by stirring or shearing and ensure the quality of materials.
#### High - efficiency Packaging Capacity
The rotating workbench of the rotary bag - feeding machine makes the packaging process uninterrupted. Each workstation simultaneously performs different operations, such as bag - opening, filling, and sealing, improving the packaging efficiency. Combined with the efficient transportation of the twin - screw conveyor pump, high - speed and continuous packaging can be achieved, and the packaging output per unit time is high.
#### Wide Material Adaptability
The twin - screw conveyor pump can transport liquids of various viscosities, including low - viscosity solutions, high - viscosity pastes, and colloids, and can also transport suspensions containing solid particles (as long as the particle size and content are within the allowable range). This enables the equipment combination to be used for packaging different materials in multiple industries such as food, chemical, and pharmaceutical.
The rotary bag - feeding machine can adapt to packaging bags of various materials, shapes, and sizes. By replacing tooling fixtures or adjusting parameters, different bags can be packaged, with good universality.
#### Flexible Operation and Easy Maintenance
The equipment control system can conveniently adjust parameters such as packaging speed, filling volume, and sealing temperature (when heat - sealing) to meet the packaging requirements of different products. The structures of the twin - screw conveyor pump and the rotary bag - feeding machine are clear. During daily maintenance, operations such as cleaning, inspection, and part replacement are easy to perform, reducing maintenance costs and difficulties.
### Application Fields
#### Food Industry
In the packaging of food sauces, the twin - screw conveyor pump can stably transport high - viscosity sauces such as tomato sauce and salad dressing into packaging bags, preventing the sauces from layering or clogging. The rotary bag - feeding machine efficiently completes the packaging of sauce bags, including bag - opening, filling, and sealing, ensuring the freshness and packaging quality of food.
For products such as beverages and jams containing fruit pulp particles, the twin - screw conveyor pump can accurately fill them without destroying the integrity of the fruit pulp particles, meeting the requirements of the food industry for product quality.
#### Chemical Industry
In the chemical industry, there are many high - viscosity liquids, pastes, or suspensions containing solid particles that need to be packaged, such as paints and coatings. The twin - screw conveyor泵 can effectively transport high - viscosity materials and accurately adjust the transportation volume by controlling the screw rotation speed according to packaging specifications and requirements. The rotary bag - feeding machine packages chemical products into suitable bags, ensuring the sealing and safety of the packaging and preventing leakage or pollution.
#### Pharmaceutical Industry
In terms of drug packaging, for products such as oral liquids and ointments, the accurate transportation of the twin - screw conveyor pump ensures the accuracy of drug dosage. For drugs with high requirements for component stability, such as emulsions and gels containing active ingredients, its stable transportation characteristics are also applicable. The rotary bag - feeding machine quickly completes the packaging under the condition of meeting the drug hygiene standards, improving production efficiency and ensuring the quality and integrity of drug packaging.
