Vacuum feeding device

Abstract

The invention discloses a vacuum feeding device. The vacuum feeding device comprises a raw powder bucket, an opening of the raw powder bucket is connected with a bucket cover through a hoop, and an arch-removing conveying pipe is installed on the bucket cover. The vacuum feeding device is characterized in that the conveying pipe is located on the left side edge of the bucket cover, a lug hole is formed in the part, deviated to the right from the center, of the bucket cover, a rotating shaft is rotationally installed in the lug hole, the rotating shaft is fixedly connected to a swing rod, the swing rod carries out circumferential swing in the vertical plane and is connected with a transmission shaft, the transmission shaft is driven by a servo motor and drives the raw powder bucket to be lifted through the swing rod and the rotating shaft in rotation, an auxiliary rod is fixedly installed on the rotating shaft, and a buckling terminal is arranged at the end of the auxiliary rod. After the swing rod swings upwards to make the center of the rotating shaft located on the upper left part of the center of the transmission shaft, the auxiliary rod is in contact with the bucket cover, the buckling terminal downwards enters a buckling groove formed in the bucket cover, and the auxiliary rod continues to swing along with the swing rod to push the raw powder bucket to overturn. By means of the vacuum feeding device, feeding operation is convenient, intelligent tracking feeding of various powder materials with different liquidities can be achieved, and the smooth feeding process and high feeding efficiency are ensured.

Description

technical field [0001] The invention relates to a dry granulator, in particular to a vacuum feeding device for the dry granulator. Background technique [0002] At present, the vast majority of dry granulators use vacuum feeding, elevator feeding, and manual feeding. Manual feeding is generally labor-intensive, and the dust is seriously flying. Generally, this feeding method is not adopted; the hoist feeding has relatively high requirements for the floor height and area of ​​the workshop, and a separate operator must operate the hoist during operation, which is not ideal; traditional Vacuum feeding is easy to cause blockage of the filter system, and the vacuum force is unstable, resulting in failure to feed. For this reason, the applicant applied for an invention patent with the patent number 201410489077.X on September 23, 2014, and the patent name is "Dry Granulator Negative Pressure Feeding Device". The technology provided by this patent, especially the design with arch ...

AI Technical Summary

Problems solved by technology

Manual feeding is generally labor-intensive, and the dust is seriously flying. Generally, this feeding method is not adopted; the hoist feeding has relatively high requirements for the floor height and area of ​​the workshop, and a separate operator must operate the hoist during operation, which is not ideal; traditional The vacuum feeding is easy to cause the filter system to be blocked, and the vacuum force is unstable, which leads to the failure of feeding

For this reason, the applicant applied for an invention patent with the patent number 201410489077.X on September 23, 2014, and the patent name is "Dry Granulator Negative Pressure Feeding Device". The technology provided by this patent, especially the design with arch elimination The conveying pipe (connector part) can well solve the vacuum feeding of powder with poor fluidity, but it is obviously not suitable for powder with good fluidity, and the powder with good fluidity will flood into the arch elimination in large quantities The conveying pipe is blocked, and the raw powder barrel (storage barrel) needs to be lifted before each loading, and the loading operation is time-consuming and laborious

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