SU977289A1 - Apparatus for emtying bags with loose material - Google Patents

Description

(54) DEVICE FOR THE EXPANSION OF BAGS WITH SUBDER {M MATERIAL

The invention relates to the field of loading and unloading operations, namely, machines for unloading bags with bulk material, and can be used in all sectors of the national economy for unpacking paper and plastic bags with loose, pulverized and granular materials, in particular granulated explosives. (BB)

A device for unloading bags of bulk material is known, comprising a conveyor for feeding mothers, a housing behind it, a knife fixed therein and a mechanism for shaking bags Ij,

A disadvantage of the known device is that it does not ensure the quick and complete removal of the bulk material from the bag.

The purpose of the invention is more complete emptying of the bags.

This goal is achieved by the fact that in the device for unpacking bags with bulk material, there is a bag supply conveyor, a body behind it, a knife fixed to it and a bag shaking mechanism, the latter consisting of a system of parallelly arranged shafts, each subsequent shaft is displaced downward in the vertical plane relative to the previous one, reinforced crosswise on each blade of the rows of blades and guides located above the shafts between the rows of blades.

The blades of each row are located

10 mutually perpendicular, with one pair of blades made rigid and the other flexible,

The blades of each row have a different length and are mounted on the shaft

15 symmetrically increasing from the middle of the shaft to the periphery.

FIG. 1 shows a device for unpacking bags; a general view of FIG. 2 - view along arrow A on

20 of FIG. 1, in FIG. 3 shows a section BB in FIG. 2, in FIG. 4 shows a section B-B in FIG. 2,

A device for unpacking bulk bags contains

25 a belt conveyor 1 for feeding bags, a support 2 and a hydraulic actuator 3. Case 4 contains chute 5. In the case 4, an agitating mechanism is mounted: bags consisting of an inlet system

Claims (3)

30 6 mounted in bearings 7. On the shafts, there are blades of 8 different sizes, located crosswise, each cross made with two flexible blades and another pair with hollow rigid blades. Above the shafts between the rows of blades 8 are located longitudinal inclined guides 9 forming a groove. In the upper part of the housing 4 fixed knife 10 with the possibility of height adjustment. The hydraulic actuator 3 of the inclined belt conveyor 1 is connected to the shaft system b via a gear 11 via a chain transmission 12. The shafts with blades 8 are connected by a V-belt transmission 13, which allows rotation of each shaft to be controlled with variable frequency. At the exit of the shaft system there is an oblique angle. 14 The device operates as follows. The hydraulic actuator 3 of the inclined belt conveyor 1 is fed, which supplies bags G BB. The bag falls on an inclined chute of guides, the shape of which involves giving the bag with an explosive bend, which contributes to the tension of the bag shell and its better cutting, and the bag, moving under the action of inertia forces, is cut with a knife 10. into the chute 5. Next, the empty bag falls on a system of parallel shafts 6 with cross-shaped blades 8, rotating with increasing frequency in the direction of the opened bag. The blades of 8 different sizes are fixed on each shaft, arranged so that they evenly increase: opposite to the center of the shaft in the direction of the bearing supports, as if repeating the shape of a groove. This contributes to a more intensive additional shaking of emptying the bags from explosive residues. The bag emptied from the remnants of an explosive is discharged by the blades 8 onto the slide 14, and then the empty bag enters the storage device for empty bag-sacks. The presence of a shaft system with blades rotating in the bearing supports with a speed increasing in the direction of bag sacking allows speeding up the sack emptying process and thereby increasing the efficiency of unloading. Ensuring complete emptying of the material is especially important for explosives, since, according to the Uniform Safety Rules for blasting and other guiding materials, the contents of explosive bags must be strictly taken into account, and the mechanisms intended for processing explosives must completely separate explosives from the bag. Claim 1. A device for unloading bags of bulk material, comprising a bag supply conveyor, a housing behind it, a knife secured in it and a mechanism for shaking the bags, in order to empty the bags more completely; Khivan consists of a system of parallel-arranged shaft, with each subsequent shaft displaced downward in a vertical plane relative to the previous one, fortified crosswise on each shaft of rows of blades and guides located above, va s between the rows of blades. 2. A device according to claim 1 / characterized in that the blades of each row are mutually perpendicular, with one pair of blades made rigid and the other flexible. 3. The device according to claim 1 of tl and the fact that the blades of each row have a different length and are installed on the shaft symmetrically along the increasing from the center of the shaft to the periphery. Sources of information taken into account during the examination 1. USSR author's certificate No. 605753, cl. B 65 B 69/00, 1976. .G Fi.GL