SU761374A1 - Arrangement for packaging annular articles - Google Patents

Description

The invention relates to the field of packaging, namely, devices for wrapping ring-shaped products.

A device for packaging ring-shaped products, containing a mechanism for feeding products, a coil with packaging material and a closed elliptical guide with a flexible element for packaging material [1].

A disadvantage of the known device is low productivity due to significant loss of time for preparatory operations for input and output of packaged products through the folding section, performed sequentially by reciprocating movements, as well as when changing the coil with packaging material.

The aim of the invention is to provide faster input and output from the device packaged products.

This goal is achieved by the fact that the device is equipped with an additional guide, one end of which is located at one of the mating sections of the elliptical guide, while on this section of the guide a rotary channel is mounted for supplying the flexible element to the additional guide.

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In addition, the ends of the rotary channel have a U-shaped cross-section and cover respectively the mating portion of the elliptical guide and the end of the additional guide.

FIG. 1 shows the described device in a perspective view; in fig. 2 - wrapping unit during the preparatory period; in fig. 3 - the same during the working period. .

The device for packing ring-shaped products contains a multi-seat mechanism 1, equipped with several pairs of support rollers 2, serving to transfer the products 3 to the wrapping area and to rotate them when wrapped; the coil 4 is a packing material mounted on the axis 5, and a unit for wrapping products having two open chains 6, on which bars 7 are fastened, interconnected by two axes 8. On the chains 6 there are a number of connecting rollers 9 that serve to transfer the packaging materials from coils 4 on the product 3. The chains 6 are installed in closed elliptical guides, the contour of which is formed by the lower fixed parts 10 and sliding 11. The latter are fixed on the carriage 12 moved by the drive 13 along the rolling pins 14. With the fixed parts 10 are mated Accessory rails 15, in which

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in the places of their interfacing, coupled controlled channels are installed, made in the form of U-shaped oscillating levers 16, covering the guides 15 in the places of their interfacing (the drive of the channels is not shown). Chain 6 are driven in the guide sprockets 17.

The device works as follows.

The U-shaped levers 16 are mounted horizontally and the chains 6 are distilled into guides 15. After that, the actuator 13 retracts the carriage 12 with the sliding guides 11 to the extreme right position, while the contour of the closed guides opens, opening access to the wrapping unit 3.

Multiplace mechanism 1 product 3 is inserted into the site wrapping. The packaging material is unwound from the coil 4, held between the axes 8 of the strips 7 and fixed to the product 3 (Fig. 2). Drive 13 retractable guides 11 are returned to the extreme left position, forming with the fixed parts 10 a closed elliptical contour. Asterisks 17 of the chain 6 are derived from the guides 15 and begin to move in a closed loop. After the passage of the last links of the chains 6 under the U-shaped levers 16, the latter descend and finally close the contour of the guides, replacing the sections of the guides in the open zones of their interfacing with additional guides. Simultaneously with the beginning of the movement of the chains 6, the support rollers 2 begin to rotate and, therefore, the product 3. When the chains 6 move along the closed guideway, the packaging material from the coil 4 is transferred to the product 3. The amount of overlap (overlap) of the packaging is preset by adjusting the speed numbers of sprockets 17 and support rollers 2. After packing 1/3 of the product 3, the packaging material is cut and further packaging is carried out due to the stock of packaging materials formed on the rollers 9 of the chains 6. By way761374

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In order to complete the wrapping process, there is a command to stop the support rollers 2 and horizontal installation of the U-shaped levers 16, after which by reversing the sprockets 17 of the chain 6 they are distilled into the guides 15. Then the drive 13 moves the carriage 12 to the extreme right position. The filling end of the packaging material is fixed on the product 3, after which the mechanism 1 removes it from the wrapping unit, delivering the following products to its place. Then the cycle repeats.

Due to the design features of the proposed device, the through loading is ensured - the unloading of the packaged products by outputting flexible elements into additional guides, which increases productivity by 1.5-2 times.

Claims (2)

Claim 1. A device for packing ring-shaped products, which contains a mechanism for feeding products, a coil with packaging material and a closed elliptical guide with a flexible element for packaging material, characterized in that, It has an additional guide, one end of which is located at one of the mating sections of the elliptical guide, while on this section of the guide a rotary channel is mounted for supplying a flexible element coping in an additional guide. 2. Device by π. 1, characterized in that the ends of the rotary channel are U-shaped in cross section and cover respectively the mating section of the elliptical guide and the end of the additional guide.