RU67544U1 - DEVICE FOR PACKING SOFT MATERIALS - Google Patents

Abstract

The utility model relates to devices for packaging products from soft materials and can be used for packaging soft products from gas-filled elastic materials in various industries.

The technical task to be solved is to increase the productivity and quality of packaging of soft materials.

The device comprises a vacuum system, a bed with a base plate and a drive for moving it.

The desktop inside the walls of the chamber for placing products and mounted on a bed with the possibility of its reciprocating movement.

1 s.p. f-ly. 3 - ill.

Description

The utility model relates to devices for packaging products from soft materials, for example, from polyurethane foam and can be widely used for packaging soft products from gas-filled elastic materials: pillows, mattresses, blanks for the furniture and automotive industries.

Known devices for rolling into a roll of sheet materials, which are widely used. So a device for packaging sheet elastic materials contains a horizontal conveyor and drive rolls mounted on arcuate supports [a.s. 1661059 C. B65B 11/04]. The sheet material is overlapped on the conveyor and fed into the coagulation unit together with the film. This device has significant drawbacks in terms of film overruns due to repeated wrapping and poor packaging quality manifested in a change in geometric dimensions and changes in the structure of the material after removing the package. This is due to uneven pressure in the packaged product, which is more in the center and less in the outer layers.

The closest in technical solution is the method of packaging, where the device is implemented [Method of packaging of rubber products and.with. 844486 C. B65B 31/02]. The device contains a base plate and covers between which the products are placed in the bag, and the cavity of the bag is communicated with the vacuum system.

This device does not allow high-quality packaging of soft materials due to the lack of a boot device. In this method there is no specific design solution for its implementation.

The technical task to be solved is to increase the productivity and packaging quality of soft products. The increase in productivity is due to the possibility of reducing the volume of products by 10 or more times due to the simultaneous exposure to vacuum and mechanical compression. Improving the quality of packaging is associated with uniform compression of products under the influence of vacuum, which allows after unpacking the products to restore its original geometric dimensions and not violate the structure of the product material itself.

The technical problem to be solved is a device for packaging soft products, for example, from polyurethane foam into a packaging film material containing a vacuum system, a bed with a base plate and a drive for moving it, is achieved by the fact that the device contains a working table located inside the walls of the chamber for placing products and is installed on bed with the possibility of its reciprocating movement.

Figure 1 presents a General view of the device in its original position, figure 2 - the device after loading it with products, figure 3 - device after full compression of the products.

A device for packaging soft products contains a frame 1 with a support plate 2, mounted with the possibility of reciprocating by means of pneumatic cylinders 3 mounted on the bed. A working table 4 for placing products 5 is located inside the walls 6, forming a chamber for products and installed on the frame 1 with the possibility of reciprocating movement from the actuator 7 by means of a spindle 8 along the guides 9.

The device has two working positions: preliminary packaging and the formation of shipping blocks.

The device operates as follows. On the desktop 4 pre-stacked packaging film material 10: lavsan, polyethylene, polypropylene and others (Figure 1). The set of products is laid out 5. As the calculation is made, the desktop 4 moves stepwise down. The outlet pipes 11 of the vacuum system are installed (Figure 2). The formed set of products 5 is covered with packaging material 10 and pressed by the base plate 2 from the pneumatic actuators 3. The working table 4 moves up. There is a compression of a set of products from a screw drive 8 with parallel or subsequent evacuation (Figure 3). The vacuum pump is not shown in the figures.

Around the perimeter, the packaging material is sealed by, for example, welding.

At the end of the process, the base plate 2 moves up to its original position.

The formation of the transport blocks is as follows. On the desktop 4 pre-stacked packaging material, for example, a polypropylene bag. Preformed blocks 12 of products are laid out in the bag. A seam of a polypropylene bag is formed by firmware or welding.

A device for packaging soft products can improve productivity due to the convenience of laying products on a desktop located inside the walls of the chamber with its reciprocating movement. As you move the table 4, the dimensions of the chamber formed by the walls 6 change, which allows you to completely fill the chamber with products.

The compression process proceeds quickly due to the simultaneous movement of the base plate 2 and the working table 4, which also increases productivity. At the same time, the proposed device can dramatically increase the degree of compression of the product due to the combined action of vacuum and mechanical forces.

Of particular note is the improvement in the quality of packaging - the preservation of the structure of the product material and their geometric dimensions after unpacking. This is achieved by stacking products in a given volume with

simultaneous compression both by vacuum and compression by moving the working table 4 and the base plate 1.

The device has been tested on polyurethane foam shaped products up to 850 mm long. The compression ratio was 5. Packaged products were aged in outdoor conditions (t = -10 ... 6 ° C) for 6 days. Deviation from the initial dimensions was ± 0.5 ... 0.7 mm, which is within the limits of measurement errors. At the same time, the structure of polyurethane foam and, therefore, its properties are completely preserved.

Currently, technical documentation for the packaging device for soft products has been developed.

This device can be widely used in various industries.

Claims (1)

A device for packaging soft products, for example, from polyurethane foam into a packaging material containing a vacuum system, a bed with a base plate and a drive for moving it, characterized in that the device contains a working table located inside the walls of the chamber for placing products and is mounted on the bed with the possibility of reciprocating movement.