UA148045U - DEVICE FOR PACKAGING PRODUCTS - Google Patents

Abstract

The device for packaging products, which consists of a dosing drum with measuring containers and a packaging mechanism, according to the utility model, the dosing drum is made hollow, and the packaging mechanism comprises a conveyor enveloping the dosing drum and made in the form of a belt with cells covered by elastic plastic cavity, each cavity is connected to the pneumatic system and has a valve.

Description

The useful model belongs to packaging technology and can be used for packaging food and non-food products of various shapes and sizes, as well as liquid and pasty substances and their combinations.

A known device for packaging products in a film (1), which includes a roll holder, guide rollers for the film, a feeder and a lifting and lowering carriage with clamps for forming transverse seams and a cutting tool. This device and others similar to it are intended for filling with product and sealing bags made of tape thermo-adhesive material.

The hand former included in these devices complicates the design, this device does not allow you to form a package from two tape materials.

A known device for packing groups of artificial objects into film |2|), which consists of two platforms installed at the same level with a gap between them. A polyethylene film is stretched in the gap. The device for supporting the film consists of a roll holder and guide rollers for stretching and changing the direction of the film. The device for sealing the end sides of the package is welding traverses fixed on the rods of pneumatic cylinders.

Welding traverses seal the end and side seams of the package. This device is complex structurally and in operation, it allows packing only artificial objects.

Welding with traverses does not ensure a high-quality seam.

As the closest analogue, the device (Z) was chosen for packing products in strip flexible material. The device contains a bed, mounted on it are bobbin holders of strip flexible material, tension deflecting and guide rollers for uniform material supply. The device also contains loading and discharge conveyors, transverse and longitudinal welding mechanisms , pulling and welding rollers. The device also allows the use of polyethylene-laminated paper as a packaging material. The disadvantages of this device are limitations on the size of the packaged materials, lack of versatility, restrictions on the materials used (use of heat-sealing materials only).

The basis of the useful model is the task of increasing productivity and increasing the accuracy of dosing when creating hermetic packaging of various products of different shapes and sizes, both food and non-food products.

The task is solved by the fact that the dosing drum is made hollow for

From feeding the dosed material into it, and the packaging mechanism includes a conveyor that goes around the dosing drum and is made in the form of a belt with cells that overlap with an elastic plate that forms cavities, while each cavity is connected to a pneumatic system and has a valve.

The essence of the useful model is explained by the drawings, where in fig. 1 shows a device for dosing and packing loose materials in hot-melt adhesive film with a partial section, the general view is shown in fig. 1, and section A-A in fig. 2. The device (Fig. 1) contains a frame 1, on which is fixed a dosing drum 2, which has measuring containers 3. The drum 2 is made hollow for feeding the dosed material into it. A cutter 4 is placed inside the drum. The device also contains a packaging mechanism, which includes a conveyor, made in the form of a belt 5 with cells 6. The cells are covered with an elastic plate 7, forming cavities 8, while each cavity is connected to a pneumatic system (in the drawing, conditionally not shown), has a ball valve 9. Gear wheels 10 serve as the support of the conveyor. An electric motor 11 and a reducer 12 with a chain transmission 13 are installed on the frame 1. On the frame there are bobbin holders 14 and 15 with rolls of hot-melt film and mechanisms 16 for unwinding the film, as well as guides rollers 17 for film, heating rollers 18, rollers 19 with cutting knives. A hopper 20 and a vacuum distribution device 21 are mounted on the bed 1, a drive sprocket 23 and an intermediate transmission sprocket 24 are fixed on the shaft 22 of the dosing drum 2. There is a channel 25 in the body of the shaft 22.

The device works as follows. The end of the thermo-adhesive film from the roll 14 is inserted between the dosing drum 2 and the belt 5 (Fig. 1). The end of the hot-melt adhesive film from the roll 15 is inserted between the rollers 17. Further, the hot-melt adhesive film is unwound by mechanisms 16. The product from the hopper 20 moves inside the dosing drum 2, which rotates from the electric motor 11 through the reducer 12, chain gear 13, drive sprocket 23. When the dosing drum rotates 2, the bulk material under the influence of oddentr forces falls into the measuring containers 3, the bottom of which is a polyethylene film with a roll 14. When the dosing drum rotates, the material in the measuring container is separated from the material in the loading chamber by a separator 4. After cutting off the material in the measuring container, it is sucked from the internal cavities 8 air, as the shaft of the dosing drum rotates, and the channel 25 in front of the vacuum distribution device 21 connects the internal cavity 8 with the vacuum pump (not shown in the drawings). Due to the presence of holes in the conveyor belt, under the action of vacuum, the hot-melt adhesive film is deformed following the elastic plate of the belt and forms a concave half of the bag. The material under the influence of centrifugal forces and the forces of excess atmospheric pressure leaves the measuring capacity and enters the space formed during the deformation of the plate 7 and the thermo-adhesive film. In the future, the dosed material moves along the horizontal section of the conveyor. However, the entry of atmospheric air into the belt cell is difficult due to the presence of the spherical valve 9, while the deformation of the plate 7 remains throughout the horizontal section of the conveyor. Before returning the internal cavity to the dosing position, it is filled with atmospheric air by passing it through the valve and aligning the elastic plate. The film from the roll 15 covers the dosed material, and in this state the hot-melt film with the dosed material goes under the heating rollers 18, which form longitudinal seams along the edges of the tapes and transverse seams between the doses of material. The thermo-adhesive films with the material later fall under the rollers 19 with cutting knives, where the film is cut into ready-made packages. Ready packages are removed from the delivery area by a conveyor not shown in the drawing. The conveyor, heating rollers and rollers with cutting knives are driven from the sprocket by 24 chain gears.

Using the device of the proposed design allows you to significantly increase the productivity of packing loose materials in small doses by 3-10 times. Dosing at high speeds occurs without reducing the accuracy of allocated doses. Under the action of centrifugal forces, the material in the measuring containers is compacted, which reduces the dosing error.

Sources of information: 1. Patent of the Russian Federation 2191722. Berezueva S.N., Berezuev R.V., Berezuev O.V 2. A.b. 1578032, IPC 8658 9/06. 3. A.s. 1414713, IPC B658 11/16.

Claims (1)

UTILITY MODEL FORMULA Device for packaging products, which consists of a dosing drum with measuring containers and a packaging mechanism, which is characterized by the fact that the dosing drum is made hollow, and the packaging mechanism contains a conveyor that goes around the dosing drum and is made in the form of a belt with overlapping cells elastic plate forming cavities, while each cavity is connected to the pneumatic system and has a valve.