Vacuum feeding machine and automatic feeding system

Abstract

The invention provides a vacuum feeding machine and an automatic feeding system. The vacuum feeding machine comprises a storage tank, a filter chamber, a controller, a top cover, an air regulating valve, an air cannon and at least two working groups, wherein each working group comprises a filter group, a control cavity, a tee pneumatic control valve and an exhaust valve; a feed opening is arranged on the storage tank, and the upper end of the storage tank is communicated with the filter chamber; the filter chambers are communicated with the filter groups; the top cover is fixedly connected with one end of each control cavity, so that a vacuum chamber is formed; the tee pneumatic control valve is accommodated in the vacuum chamber; the exhaust valves are communicated with the air cannon; the tee pneumatic control valves are further communicated with the air regulating valve; and the controller controls the on and off of the air cannon and the on and off of the tee pneumatic control valve of each working group respectively. According to the vacuum feeding machine, the feed opening is directly mounted on the storage tank of a material, so that the material can be prevented from being absorbed on filters excessively; a plurality of the working groups are arranged, and each working group can be independently controlled by the controller, so that the material can be conveyed continuously, and the conveying efficiency is improved greatly; and the mechanical device is optimized, mechanical faults are reduced, and the operation is convenient.

Description

technical field [0001] The invention relates to the field of powder material transportation, in particular to a vacuum feeding machine and an automatic feeding system. Background technique [0002] At present, the vacuum feeding widely used in the market adopts intermittent vacuum feeding, refer to Figure 5 , that is, the vacuum is generated by the vacuum generator or the negative pressure fan pump to suck the material into the receiving tank, the air and the material are separated through the filter, the time of pumping and discharging is set, and the discharge valve of the feeding machine is controlled by the controller The switch discharges the material to the storage tank. Since the vacuum generator or the negative pressure fan must be stopped during the material discharge process, at the same time, the filter is blown back by the air cannon to make the material adsorbed on the filter fall off, forming a circular operation. . [0003] The existing technology has the fo...

AI Technical Summary

Problems solved by technology

[0003] The existing technology has the following three major defects. Defect 1: The material conveying speed is slow, and it can only be conveyed through frequent switching and discharge valve actions, which consumes a lot of power; Defect 2: The material enters the storage tank after vacuum feeding. The filter is frequently in contact with a large amount of materials, and the filters are prone to clogging, and the filter is not cleaned by blowback; defect 3: frequent opening and closing of the discharge valve, which is prone to poor sealing, allowing air to pass through the valve plate and the discharge port High-speed friction between the gaps and damage to the machine

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