RU2372260C2 - Device for filling of valve bags by bulk material - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention relates to device for filling of valve bags by bulk material and can be used in civil, chemical industry, factory-farm and sector of the national economy, connected to reprocessing, transportation and selling of bulk materials. Device contains bin with measuring valve peg-shaped, loading chamber with wing feeder, charging branch with gate-cutoff plate and feeding device of compressed air. Also device is outfitted by reverse sprinkling channel peg-shaped for providing of escape of surpluses of bulk material and autopurification at packing of materials with increased adhesion and additional feeding device of compressed air. Reverse peg-shaped sprinkling channel is directed by basis of cone to loading branch and is connected to casing of gate-cutoff plate with formation in intersection place to charging branch of oval, big axis of which is equal to 50-100 mm, and in place of intersection to casing of gate-cutoff plate of oval, big axis of which is equal to 20-50 mm. Additional device for feeding of compressed air is fixed in top part of reverse peg-shaped sprinkling channel under angle 45° to its axis.

EFFECT: increasing performance attributes, reliability growth of operation of deviced and losses reduction for friction.

1 dwg

Description

The invention relates to a device for filling valve bags with bulk material and can be used in the construction, chemical industry, agriculture and other sectors of the economy related to the processing, transportation and sale of bulk materials.

During the operation of packaging machines for loading bulk materials into valve bags, emergency situations can occur when, for various reasons (sudden power outage, ingress of foreign substances, especially metal ones, into the components of the packaging machine,) the packaging process is terminated.

If it is necessary to inspect and repair the packaging machine units with opening the hatches so that the flow of bulk material from the hopper does not occur, this flow should be blocked. This is especially important for a single-piece packaging machine.

A device for filling bulk material into valve bags containing a hopper, a loading chamber with a blade feeder is known. Between the hopper and the loading chamber, a metering cone and a loading nozzle with a flow shut-off are made (see patent DE 3922738 C2, Ventilsackfullmaschine).

In this device, the metering cone may be skewed, the closure leaks due to coarse material deposited on the protrusions of the inner wall of the sealing ring flange of the loading funnel, which creates an inaccurate dosage of bulk material.

The closest analogue is a device for filling valve bags with bulk material. This device contains a hopper, a loading chamber with a paddle feeder, a loading nozzle, between the hopper and the loading chamber there is a pre-chamber with a sector gate and fender elements overlapping from above the sector gate along its upper and side contours (see RF patent No. 2123461 C1, class B65B 1/00, 10/03/1997).

In this device, in the space between the gate and the wall of the gate chamber, bulk material is accumulated and compressed, thereby complicating the free movement of the gate and the material.

The present invention solves the problem of improving the operational properties of the device for filling valve bags with bulk material by expanding the technological capabilities of the device, increasing the reliability of the device and reducing friction losses during the formation of a layer of bulk material on the protrusions of the metering cone and the ingress of foreign impurities on it, as well as distortions, leaks closing last.

The solution to this problem is achieved by the fact that the device for filling valve bags with bulk material contains a hopper with a conical metering valve, a loading chamber with a blade feeder, a loading nozzle with a slide gate and compressed air supply, characterized in that it is equipped with a conical backfill channel forms for ensuring the evacuation of excess bulk material and self-cleaning when packing materials with increased adhesion and an additional means of supplying compressed air, at ohm, the conical backfill channel is facing with the base of the cone to the loading nozzle and communicated with the gate valve body with the formation of an oval at the intersection with the loading nozzle, the major axis of which is 50-100 mm, and a large oval at the intersection with the gate gate body the axis of which is 20-50 mm, and an additional means of supplying compressed air is fixed in the upper part of the inverse overflow channel of a conical shape at an angle of 45 ° to its axis.

A device for filling valve bags with bulk material includes (see drawing) a hopper 1, a vertical lever 2, a horizontal lever 3, a pneumatic actuator 4, a metering valve of a conical shape 5, moving in the vertical direction "up-down", i.e. the metering valve of the conical shape 5 is directed all the way down, reaches the open position with the formation of an annular gap 7 of size 5-50 mm from the O-ring 6 (respectively, the metering valve of the conical shape 5 is directed all the way up, reaches the "closed" position), providing the outflow of bulk material through the annular working gap 7 into the loading chamber 8 with a blade feeder 15, a fitting for supplying compressed air 9, the gate valve body 10 with the vertical gate valve 11, with a lever and pneumatic drive, overflow second return passage 12 of conical shape to ensure evacuation of surplus particulate material when self-cleaning and trudnosypuchih packaging materials or materials with high humidity. The overflow return channel 12 is made in the form of a cone, equipped with a nozzle 13 for supplying additional compressed air, which prevents the likelihood of pressing in the space in the housing of the gate-cutter 10 with bulk material, a loading nozzle 14 for filling valve bags with bulk material.

The operation of the device for filling valve bags with bulk material is as follows.

Bulk material during the loading process to be packaged from the hopper 1 passes through an annular working gap 7 of the expiration of bulk materials 5-50 mm in size, formed by the outlet of the hopper 1 and the metering valve of the conical shape 5 to the loading chamber 8 with a blade feeder 15. When mounting valve bag to the loading pipe 14, the photosensor gives the command to the actuator of the gate-cutter oval 11 in the upward direction. The compressed air supply system is triggered 9. Then, the metering valve of the conical shape 5 is moved in the vertical direction to the stop using the pneumatic actuator 4 by means of the horizontal lever 3 and the vertical lever 2. The metering valve of the conical shape 5 reaches the “open” position with the formation of an annular working gap 7 of size 5-50 mm from the o-ring 6. Opening downward, the metering valve 5, thereby eliminating possible distortions, leakage closures using the o-ring 6, made in the form of rubber ovogo ring 1 fastened to the hopper flange. Bulk material is poured through the working gap 7 and enters the chamber 8, and by means of a blade feeder 15 is fed into the loading nozzle 14, where the nozzle 9 for supplying compressed air is mounted to fill valve bags with bulk material.

The gate body 10 is mounted in the loading pipe 14 with a bulk return channel 12. When the gate gate 11 is working, the bulk material tends into the gate body 10 and clogs the mechanism. Equipping the device with a bulk return channel 12 ensures the evacuation of excess bulk material and self-cleaning when packaging difficult-to-flow materials with increased adhesion. The placement of an additional fitting 13 for supplying compressed air through the return transfer channel 12 in the direction of movement of the bulk material, which prevents the likelihood of pressing in the space in the housing of the gate 10 with bulk material.

When the required weight of the valve bags is reached with bulk material, a weighing device is triggered, the metering valve cone 5 is moved in the vertical direction until it stops up to the closed position by means of a pneumatic actuator using horizontal levers 3 and vertical 2, the blade feeder turbine 15 continues to rotate until the product remains , then stop the supply of compressed air to the nozzle 9 and turns on the supply of compressed air to the nozzle 13 to purge the return overflow channel 12 and the loading pipe and 14. The bag is removed from the loading pipe 14, and the cycle of the device is repeated.

Claims (1)

A device for filling valve bags with bulk material containing a hopper with a metering valve of a conical shape, a loading chamber with a blade feeder, a loading pipe with a slide gate and means for supplying compressed air, characterized in that it is equipped with a return conical channel of conical shape to ensure the evacuation of excess bulk material and self-cleaning when packing materials with increased adhesion and an additional means for supplying compressed air, while the return filling channel to of the onical form is turned by the base of the cone to the loading nozzle and communicated with the gate valve body with the formation of an oval at the intersection with the loading nozzle, the major axis of which is 50-100 mm, and at the intersection with the gate gate body of the oval, the major axis of which is 20 -50 mm, and an additional means for supplying compressed air is fixed in the upper part of the reverse overflow channel of a conical shape at an angle of 45 ° to its axis.