Automatic open-mouth bag discharging device with air expansion sealing function for bag mouth

Abstract

The invention discloses an automatic open-mouth bag discharging device with an air expansion sealing function for a bag mouth. The automatic open-mouth bag discharging device includes a rack, a hangerconnected with the rack, a discharging bucket connected with the lower portion of a feeding bucket in a fitting mode, an open-mouth bag lifting mechanism arranged at the lower portion of the hanger and a weighing mechanism connected between the middle of the rack and the middle of the hanger, wherein the top of the rack is provided with a storage box; the upper portion of the right side of the rack is provided with a feeding canister; the lower portion of the feeding canister is provided with a feeding canister discharging outlet; the top of the hanger is provided with a platform; the side, facing downwards, of the platform is provided with the feeding bucket; the side, facing upwards, of the platform is provided with a feeding bucket material guiding connector and a dedusting mechanism;and the platform is provided with dedusting holes. The automatic open-mouth bag discharging device is characterized in that the device also includes a bag mouth air bag sealing mechanism, a bag mouthholding mechanism and a material vacuuming mechanism, wherein the bag mouth air bag sealing mechanism is arranged on the discharging bucket; the bag mouth holding mechanism is arranged on the hanger and fits with the bag mouth air bag sealing mechanism; and the material vacuuming mechanism is arranged on the top of the hanger, so that the bulk density of materials is improved and the packaging volume is reduced, cracking in the logistics process is avoided, and the logistics cost is saved.

Description

technical field [0001] The invention belongs to the technical field of packaging machinery, and in particular relates to an automatic unloading device for open-mouth bags with the function of inflating and sealing bag openings. Background technique [0002] The aforementioned open bag automatic unloading device can also be called open bag automatic filling device or open bag automatic filling machine (hereinafter the same). The aforementioned open bag is widely used for fine chemical raw materials such as ultra-fine powder, metal ore and non-metallic ore powder, pharmaceutical and chemical raw materials, dyes, pigments, calcium carbonate, kaolin, phenolic resin and even food such as flour, seasoning, etc. Such as powder or granular material packaging. Since the open bag automatic unloading device has the advantages of high filling efficiency, less manpower input and helping to reduce the working intensity of workers, it is widely used in the production industry not limited ...

AI Technical Summary

Problems solved by technology

Although these patents that are not limited to examples have the technical effects recorded in the technical effect column of the description, they do not provide how to realize the gap between the mouth of the open bag and the discharge port of the discharge barrel during blanking. Reliable sealing and technical inspiration on how to extract the air trapped in the material from the open bag after filling (i.e. blanking)

[0004] As is well known in the industry, during the process of unloading (that is, "filling", the same below) into the open bag by the automatic unloading device, if the desired sealing degree cannot be achieved between the mouth of the bag and the outlet of the unloading barrel, then the material Dust and even materials will escape from between the inner wall of the bag opening and the outer wall of the discharge opening of the discharge barrel and diffuse into the space. On the one hand, it will cause material waste, and on the other hand, it will affect the working environment and even damage the health of online workers.

In addition, when faced with the packaging of materials with low bulk density and high air content, it is usually necessary to extract the air contained in the material from the bag to meet the requirements of vacuum packaging, otherwise the following problems will occur: in such as storage and transportation Such logistics links are prone to breakage (package bag rupture), resulting in loss of goods; large packaging volume, resulting in increased packaging, warehousing and transportation costs

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