SU494314A1 - Bag opener - Google Patents

Description

one

The invention relates to equipment for unpacking bags with dry materials and can be used, for example, in the food and chemical industries for unpacking bags with bulk materials, including compacted and compacted bulk materials.

A device for unloading bags, containing its chamber with a rotating tray mounted therein for receiving it into a rotor with needles located around its circumference, is known.

The known device does not ensure complete emptying of the bags.

The aim of the invention is to intensify the process, completely empty the bags and the possibility of their reuse.

For this purpose, the device is equipped with an inclined table with a vibrator located in the chamber at the exit of the rotary tray and forming a single sliding surface with it, and the needles are hollow and connected to a source of compressed air.

FIG. 1 shows the proposed device, a longitudinal section; in fig. 2 - bag; in fig. 3 is a view along arrow A in FIG. one; in fig. 4 shows the arrangement of the bag on the working tool; in fig. 5 - working body (section along BB in Fig. 1).

The device consists of a housing 1, a swivel tray 2 with a support 3 on which the bag 4 is installed, a curved direction 5, a counterweight 6, a locking device 7,

vibrating inclined table 8, vibrator 9 with needles 10, stop 11, rotor 12, compressed air source 13, tools 14 for removing empty bags, pipe 15 for exhaust ventilation and auger 16

for the withdrawal of bulk material from the device.

The housing 1 is a support frame and a hermetically sealed cover. In the upper part of the housing 1 there is a rotary tray 2, made in the form of an unequal arm turning around the support 3. The area of the rotary tray should be greater than the projection of bag 4 on the horizontal plane, where L is the length of the filled bag, B is width, H is thickness. The swivel tray 3 is installed with a minimum clearance from the guide 5. On the smaller arm of tray 3, the counterweight 6 is strengthened. The horizontal position of tray 3

is secured by the locking device 7.

Table 8 is set at an angle to the horizon and is equipped with a vibrator 9. The angle a depends on the dimensions of the bag, the material from which it is made, the material of the sliding surface and the bulk density of the bulk material. This angle is in the range of 15 to 75 °. The gap h between the guide 5 and the table 8 should ensure the free passage of the bag with thickness H. The distance between the guide 5 and the tip of the needle 10 should be greater than the length of the bag L. The tip of the needles 10 is made in the form of conical plugs, and the needles 10 in the about sharply perforated.

In the initial position, the needles are located parallel to the working plane of the table 8 at a distance of 25 N. The needle length / should correspond to equality / (0,, 9).

In order to reduce the atomization of the product in the chamber and the consumption of compressed air, it is supplied only to those needles 10, which are put on the watch-room.

The device works as follows. Bag 4 with bulk materials set on tray 2 and embroider from the end. When the locking device 7 is triggered, the tray 2 is rotated at an angle a under the weight of the bag, the bag slides over the surface formed by the tray 2 and the table 8, and is put on the needles 10 with an embroidered end. fixed by the locking device 7, thereby achieving sealing of the device. When the vibrator 9 is turned on, the table 8 starts to vibrate, while switching on a source of compressed air, such as a compressor, and feeding it through the holes in the needles 10 into the material in the upper part of the bag, which contributes to fast and complete

its emptying. At the end of the bag emptying process, the rotor with the help of the drive mechanism (not yet, about 360 is taken in the drawings) turns to the angle where

n is the number of pairs of needles, and the next pair of needles occupies the initial working position. Removal of the empty bag is carried out using the tool 14.

The device is intended for packaging of tissue, paper or polymer bags, sewn up after filling them with such bulk materials as flour, cement and the like powdery materials capable of compaction or forming by rolling or compaction in a forming mechanism.

Claims (1)

Invention Formula A device for unstitching cells, containing a chamber with a rotating tray mounted therein for receiving cells and a rotor with needles located around its circumference, characterized in that, in order to intensify the process and reusability of cells, it is equipped with an inclined table with a vibrator located in the chamber at the exit from the rotary chute and forming with it a single sliding surface, and the needles are hollow and connected to a source of compressed air. 12 iO 8 / Type A 10 B & W Fig 5