RU1768466C - Device for packaging bags with loose material - Google Patents

Abstract

Use: in loading and unloading operations and can be used for automatic unloading of bags with bulk material in the light, food and chemical industries. The inventive device for unloading bags of bulk material contains a feed container 1, a storage hopper, an unloading mechanism located above it, including two parallel belt conveyors 7 and 8 with spikes, tension reels 9,10, which are located at the exit of the conveyors mounted in a vertical plane on the beam, a disk knife mounted between the conveyor belts with spikes, a vibration drive including a crank connected to the beam 13. A mesh tray is installed under the conveyors with spikes erekryvayuschy inlet hopper and connected to the crank vibration drive. A clamping roller 19 is mounted above the conveyors with spikes, driven by the drive of these conveyors. To ensure uninterrupted supply of filled bags from the pallet, the device is equipped with a single-bag feeding mechanism containing a vertical frame with a lifting and lowering platform 5 fixed on it with a pusher 6 having individual drives. 1 s.p. f-ly, 3 ill. next to

Description

The invention relates to loading and unloading operations and can be used for automatic unloading of bags of bulk material in the light industry, construction, chemical and other industries.

A device is known (AS No. 839871, class B 65 V 69/00) for unloading bags with bulk material, comprising a bag feeding mechanism, conveyors behind it with driving and driven drums, spikes mounted on conveyor belts and a cutting device, the axes of the driving and driven drums being mutually perpendicular.

The disadvantages of the known device are: high dust emission during emptying of bags; the need for constant orientation of the middle of the bag to the cutting device; the inability to remove foreign bodies.

A device for unpacking bags of bulk material is also known, comprising a table for feeding the bag of bags, horizontal guides, a carriage mounted therein with grippers for moving the bag layer, a cutting mechanism, a vibrating tray, devices for removing empty bags, and a hopper for bulk material. Each grip consists of a hydraulic cylinder mounted on the carriage,

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a pin with a slot and placed in the last pivotally interconnected levers mounted on the hydraulic cylinder rod.

The device for removing empty bags is made in the form of curly plates located between the grips.

The disadvantages of the known device include:., ".

1. installation operation is inefficient, as the pallet with bags is always in motion during unloading, i.e., how many bags are on it, how many times it rises and falls;

2. The kinematics of feeding bags from the pallet to the hopper is very complicated.

The closest in technical essence to the claimed device for sacking bags with bulk material is a prototype device for cutting and automatic, uninterrupted emptying of bags containing a feeding device, two unloading elements, which are parallel to each other tape conveyors with spikes, the tension drums of which are mounted on a beam connected to the shaking mechanism, are mutually perpendicular to the drive drums, for Skov blade driven by the motor and located between the discharge elements, and the disposable bags.

The disadvantages of the known device are:

1. unstable capture of bags with spikes of unloading elements;

2. It is not provided for the cleaning of recoverable material from foreign bodies falling during emptying;

3. Lack of piece delivery of bags from the pallet.

An object of the present invention is to improve operational reliability.

This goal is achieved in that a device for unpacking bags with bulk material containing a feed conveyor, a storage hopper, an unloading mechanism located above it, including two parallel conveyors with spikes, the tension reels of which are located at the exit of the conveyors, are mounted in a vertical plane on the beam , a circular knife mounted between conveyors with spikes, and a vibro drive including a crank connected to the beam, according to the invention, a mesh belt is installed under the conveyor with spikes current overlapping inlet

storage hopper, and connected to the crank of the vibrodrive, and a pressure roller is fixed above the conveyors. In addition, the device is equipped with a single-piece bag feeding mechanism containing a vertical frame with a lifting and lowering platform mounted on it with a pusher having individual drives. Figure 1 shows a device for

0 unpacking bags of bulk material; figure 2 is a top view of the device; in Fig.3 - section aa in Fig.1.

The installation comprises a feed conveyor 1, a pallet 2, on which are located

5 bags for unloading, the mechanism of piece feeding of bags 3, made in the form of a vertical frame 4 with a lifting and lowering platform 5 fixed on it with a pusher 6, having individual drives, a storage hopper, over which there is a discharge mechanism, which is two parallel tape (onveyera 7 and 8 with spikes, tension reels 9 and 10, which are located perpendicular to the drive reels 11 and 12 and mounted on the beam 13 in a vertical plane. The beam 13 is connected to a vibrodrive 14, including a crank un 15.

0 Under the belt conveyors 7 and 8 with spikes, a mesh tray 16 is installed that overlaps the inlet of the storage hopper and is connected to the vibrodrive 14 using a crank 15.

5 Disk knife 17, driven by an electric motor 18, is mounted between conveyors 7 and 8 with spikes. For reliable gripping of bags of material, the belt conveyors 7 and 8 are equipped with a pressure roller 19, driven by the drive of the conveyors 7 and 8. At the end of the unloading mechanism, ejectors 20 and 21 of emptied bags are located. To remove dust from the bagging zone 5 of the bags, the device is equipped with a ventilation unit, which is a casing 22 with a filter 23 and a suction fan 24.

The device for unpacking bags with

0 bulk material works as follows.

A pallet 2 with bags stacked in the transverse and longitudinal directions is mounted on the conveyor belt 1.

5 The lifting and lowering platform 5 with the pusher 6 is in its highest position. Using the drive, the pusher 6 individually pushes the top row of bags onto the belt conveyor 1, the speed of the conveyor 1 is set such that the first row

bags can be processed before dropping the next row.

After dropping the first row of bags, the pusher 6 is returned to its original position and, with the help of the drive, the platform 5 with the pusher 6 is lowered by the height of the row of bags. The drive of the pusher 6 is turned on and the next row of bags collides, etc. until the pallet 2 is completely unloaded. Conveyor 1 delivers bags lying in an arbitrary position (across, along, etc.) to the unloading mechanism, which with the help of the pressure roller 19 captures them with spikes. The bags are pulled by belt conveyors 7 and 8 through a rotating disk knife 17 and cut into two halves. The halves of the bags with conveyors 7 and 8 smoothly rotate cuts downwards due to the fact that the axes of the tension drums 9 and 10 are located perpendicular to the axes of the drive drums 11 and 12.

The halves of the bags hanging downwardly cut are shaken along the entire discharge path.

The shaking occurs due to the installation of the tension drums 9 and 10 on the beam 13 connected to the vibrodrive 14, which simultaneously produces and sifts the extracted material through the sieves and the tray 16 connected to its crank 15, i.e. shaking and sieving of the material is carried out from one drive, which simplifies the design of the device.

Empty bag halves at the end of the unloading mechanism are removed by droppers 20 and 21.

During the unpacking of the bulk bags, dust is generated which is removed by the ventilation unit.

Claims (2)

1. A device for unloading bags of bulk material containing a feed conveyor, a storage hopper, an unloading mechanism located above it, including two parallel conveyors with spikes, the tension reels of which are located at the exit of the conveyors, are mounted in a vertical plane on the beam, a circular knife mounted between conveyors with spikes, and a vibrodrive including a crank connected to the beam, characterized in that, in order to increase reliability in operation, a mesh screen is installed under the conveyors with spikes tray overlapping the inlet of the storage hopper and connected to the crank of the vibrator, and a pinch roller is fixed above the conveyors. 2. The device according to claim 1, with the fact that it is equipped with a piece-by-piece bag feeding mechanism containing a vertical frame with a lifting and lowering platform with a pusher mounted on it and having individual drives. Fig 1 21 22 245 . -j from co -B from Joint venture 1G # FIG. 2 t