Drum type vacuum charging machine

Abstract

The invention relates to a drum type vacuum charging machine, which belongs to the technical field of tobacco primary processing automation devices. The drum type vacuum charging machine comprises a charging drum, a charging device, a feeding device, a discharging and transporting device, a vacuum device, a compressed air device, a motor and a transmission device, wherein a transporting pipeline of the charging device is mounted at one end of the charging drum, a vacuum pipeline is arranged at the other end, the vacuum device and the compressed air device are respectively connected on the vacuum pipeline in parallel through pneumatic valves, support rolling ways are respectively arranged at two ends of the charging drum, the charging drum rotates along with the support rolling ways, the charging drum is connected with the motor through the transmission device, and the feeding device and the discharging and transporting device are respectively arranged above and below the charging drum. A switch plate in the drum can lead the range of a material curtain formed by materials in the drum to be larger and more uniform, thereby improving the charging uniformity. The temperature in the drum can be controlled through a heat medium in an interlayer of the drum, thereby avoiding the waste of material liquid, simultaneously leading the materials, material liquid and water vapor to be difficult to be stuck on the wall of the drum and leading the cleaning in the drum to be more convenient.

Description

technical field [0001] The invention belongs to automatic equipment for making shredded tobacco, and in particular relates to a drum-type vacuum feeder, in particular to a production equipment for vacuum feeding tobacco blades. Background technique [0002] The feeding process is one of the key processes in the silk making process, which has a very important impact on the inner sensory quality of cigarettes. The feeding machine of the traditional technology is under normal pressure, the material forms a "material curtain" through the action of the inclination angle of the drum and the material shifting plate, and continuously flows to the outlet. It is evenly mixed with the formed "material curtain" for feeding treatment. At the same time, the temperature in the barrel is increased by circulating hot air to increase the absorption of the material liquid, and then it is stored in the leaf storage cabinet to fully absorb the material liquid. The feeder of traditional technolo...

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Problems solved by technology

[0003] 1. Under normal pressure, the blade absorbs the feed liquid slowly, and at the same time, the moisture on the surface of the blade will prevent the feed liquid from penetrating, so it mainly relies on the subsequent leaf storage process to slowly infiltrate, especially the one with a higher formula level. Tobacco leaves usually need to be stored for more than 18 hours, resulting in low efficiency in the feeding process

[0004] 2. The traditional feeding process is a dynamic feeding process. The flow rate of the sprayed material liquid needs to be adjusted by tracking the change of the incoming material flow rate in real time, so the instantaneous feeding accuracy is affected by the control accuracy of the previous process.

[0005] 3. Due to the unreasonable design of the shape of the material shifting plate in the drum and the limitation of the fixed installation position of the feed liquid nozzle, some materials are blocked and not sprayed by the feed liquid, which seriously affects the uniformity of feeding

At the same time, the traditional process uses a hot air system to increase the temperature in the barrel, so that the material is more conducive to the absorption of the material liquid, but the hot air will inevitably take away part of the material liquid and volatiles in the material liquid, resulting in a more uneven distribution of the material liquid, and at the same time, the material itself. The aroma of the

[0006] 4. The barrel wall of the traditional feeding machine has a simple insulation layer structure, so the surface of the barrel wall is often affected by temperature, humidity and the viscosity of the feed liquid, and a large amount of materials often stick to it. This part of the sticking material not only affects the feeding accuracy, but also gives each Cleaning up after production was a huge inconvenience

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